Patent Application
20230341195
The present invention relates to a heat exchange device and a method for manufacturing the heat exchange device.
A central processing unit (CPU) mounted on a computer or a secondary battery mounted on an electric vehicle generates heat during operation. As means for cooling such a heating element, various cooling devices that use a cooling medium have been proposed.
Patent Document 1 discloses a water-cooled plate-type cooling unit. The cooling unit disclosed in Patent Document 1 includes a pair of plates, a rib, and a water supply/discharge fitting. The rib defines a flow path in a cavity region between the pair of plates. An external hose is coupled to the water supply/discharge fitting. A heat transfer medium flows into or is discharged into the flow path via the water supply/discharge fitting. The pair of plates, the rib, and the water supply/discharge fitting are made of metal. The water supply/discharge fittings and the rib are welded to the pair of plates.
Patent Document 1: Japanese Patent Application Laid-Open (JP-A) No. 2015-210032
In response to diversification of applications of cooling devices in recent years, it is desired to cope with weight reduction, cost reduction, and the like of cooling devices as well as complication of a shape. In particular, in a cooling device using a cooling medium, a technique for joining a joint member or a first member for water supply and discharge to a heat exchange main body portion such as a pair of plates by a method other than welding or brazing while ensuring airtightness is required.
In view of the above circumstances, an object of the present disclosure is to provide a heat exchange device having excellent airtightness even when the joint member or the first member is not welded or brazed, and a method for manufacturing the heat exchange device.
Another object of the disclosure is to provide a heat exchange device capable of configuring a degree of freedom in designing an internal flow path through which a heat exchange medium flows.
Means for solving the above problems include the following embodiments.
<1> A heat exchange device according to a first aspect of the disclosure includes: a heat exchange main body portion that has an internal flow path through which a heat exchange medium flows and a metal wall portion including a through-hole that communicates with the internal flow path; a joint member that has a protruding portion including an opening through which the heat exchange medium is supplied or discharged and protruding toward an outside of the heat exchange main body portion via the through-hole, and a hollow portion for causing the opening and the internal flow path to communicate with each other; and a resin sealing portion that seals a gap between an inner peripheral surface of the through-hole and an outer peripheral surface of the protruding portion.
The heat exchange device according to the first aspect can prevent leakage of the heat exchange medium or intrusion of foreign matter from an outside through the gap between the through-hole and the protruding portion. That is, the heat exchange device of the first aspect has excellent airtightness even when the joint member is not joined to the heat exchange main body portion by brazing or welding.
<2> A heat exchange device according to a second aspect of the disclosure includes: a heat exchange main body portion that has a metal wall portion including a through-hole; a first component that covers the through-hole; and a second component that is connected to the first component, in which the heat exchange main body portion further has an internal flow path through which a heat exchange medium flows, the first component has a first connecting portion including a first opening, and to which the second component is connected, a first hollow portion for causing the first opening and the internal flow path to communicate with each other, and a resin fixing portion that is fixed to the metal wall portion, and the second component has a second connecting portion that includes a second opening through which the heat exchange medium is supplied or discharged, and to which a supply unit that supplies the heat exchange medium to the internal flow path or a discharge unit that discharges the heat exchange medium from the internal flow path is connected, and a second hollow portion that causes the second opening and the first opening to communicate with each other.
In the disclosure, “first component that covers the through-hole” includes a first aspect and a second aspect. The first aspect indicates an aspect in which the first connecting portion of the first component protrudes toward the outside of the heat exchange main body portion via the through-hole, and the resin fixing portion seals the gap between the inner peripheral surface of the through-hole and the outer peripheral surface of the first connecting portion. The second aspect indicates an aspect in which the first component covers the through-hole so that the through-hole is not exposed, and there is no gap between the resin fixing portion and the metal wall portion.
The heat exchange device according to the second aspect can prevent leakage of the heat exchange medium or intrusion of foreign matter from the outside through the gap between the first component and the metal wall portion. That is, the heat exchange device of the second aspect has excellent airtightness even when the first component for supply and discharge is not joined to the heat exchange main body portion by brazing or welding.
<3> A heat exchange device according to a third aspect of the disclosure is the heat exchange device according to <2>, further including a packing that seals a gap between the first component and the second component.
The heat exchange device according to the third aspect can more reliably prevent leakage of the heat exchange medium or intrusion of foreign matter from the outside through the gap between the first component and the second component than a case where the packing is not provided.
<4> A heat exchange device according to a fourth aspect of the disclosure is the heat exchange device according to <2> or <3>, in which the first component includes a joint member, the joint member includes a protruding portion that is the first connecting portion and a hollow portion that is the first hollow portion, the joint member does not include a resin sealing portion that is the resin fixing portion, the protruding portion protrudes toward an outside of the heat exchange main body portion via the through-hole, and the resin sealing portion seals a gap between an inner peripheral surface of the through-hole and an outer peripheral surface of the protruding portion.
In the disclosure, “joint member does not include a resin fixing portion” indicates that the joint member and the resin fixing portion of the first component are separately formed, in other words, the joint member and the resin fixing portion are not integrally molded. In the disclosure, “protruding portion that is the first connecting portion” indicates that the first connecting portion is paraphrased as a protruding portion, “hollow portion that is the first hollow portion” indicates that the first hollow portion is paraphrased as a hollow portion, and “resin sealing portion that is the resin fixing portion” indicates that the resin fixing portion is paraphrased as a resin sealing portion.
The heat exchange device of the fourth aspect can prevent leakage of the heat exchange medium or intrusion of foreign matter from the outside through the gap between the through-hole and the first connecting portion. That is, the heat exchange device of the fourth aspect has excellent airtightness even when the joint member is not joined to the heat exchange main body portion by brazing or welding.
<5> A heat exchange device according to a fifth aspect of the disclosure is the heat exchange device according to <1> or <4>, in which the heat exchange main body portion has a facing wall portion facing the metal wall portion, the joint member has a projecting portion that projects from the outer peripheral surface of the protruding portion over an entire periphery of the outer peripheral surface of the protruding portion, and the projecting portion is in contact with an inner surface of the metal wall portion and an inner surface of the facing wall portion.
In the fifth aspect, the projecting portion functions as a support of the metal wall portion. Therefore, even when a pressing force is applied to the metal wall portion in a thickness direction of the metal wall portion, the metal wall portion is hardly deformed. For example, in a case where the resin sealing portion is formed by injection molding, the projecting portion serves as a support of the metal wall portion against an injection pressure, so that the metal wall portion is hardly deformed. As a result, the heat exchange device according to the fifth aspect can reduce a pressure loss of the heat exchange medium flowing through the internal flow path. That is, the heat exchange device according to the fifth aspect can efficiently allow the heat exchange medium to flow through the internal flow path.
<6> A heat exchange device according to a sixth aspect of the disclosure is the heat exchange device according to any one of <1>, <4>, and <5>, in which a surface of the metal wall portion in contact with the resin sealing portion is subjected to a roughening treatment.
In the sixth aspect, the surface of the metal wall portion in contact with the resin sealing portion includes fine unevenness. Accordingly, the resin sealing portion is firmly fixed to the metal wall portion by an anchor effect as compared with a case where the roughening treatment is not performed. As a result, the heat exchange device according to the sixth aspect can maintain airtightness for a long period of time.
<7> A heat exchange device according to a seventh aspect of the disclosure is the heat exchange device according to any one of <1> and <4> to <6>, in which the resin sealing portion has a covering portion that covers a periphery of the through-hole on an outer surface of the metal wall portion.
In the seventh aspect, a contact area between the resin sealing portion and the metal wall portion is larger than that in a case where the resin sealing portion does not have the covering portion. Therefore, the resin sealing portion is firmly fixed to the metal wall portion as compared with a case where the resin sealing portion does not have the covering portion. As a result, the heat exchange device according to the seventh aspect can maintain airtightness for a long period of time.
<8> A heat exchange device according to an eighth aspect of the disclosure is the heat exchange device according to <7>, in which the joint member has a projecting portion that projects from the outer peripheral surface of the protruding portion over an entire periphery of the outer peripheral surface of the protruding portion, and the covering portion has a first covering portion that covers a first region facing the projecting portion on the outer surface of the metal wall portion.
In the eighth aspect, even when the resin sealing portion is injection-molded and a thickness of the metal wall portion is relatively thin, occurrence of deformation of the metal wall portion due to the injection pressure is suppressed. Further, a contact area between the resin sealing portion and the metal wall portion is larger than a case where the resin sealing portion does not have the first covering portion. Therefore, the resin sealing portion is more firmly fixed to the metal wall portion. As a result, the heat exchange device according to the eighth aspect can maintain airtightness for a longer period of time.
<9> A heat exchange device according to a ninth aspect of the disclosure is the heat exchange device according to <8>, in which the covering portion has a second covering portion that covers a second region outside the first region of the outer surface of the metal wall portion with respect to the through-hole.
In the ninth aspect, the contact area between the resin sealing portion and the metal wall portion is larger than that in a case where the covering portion has only the first covering portion. Therefore, the resin sealing portion is more firmly fixed to the metal wall portion. As a result, the heat exchange device according to the ninth aspect can maintain airtightness for a longer period of time.
<10> A heat exchange device according to a tenth aspect of the disclosure is the heat exchange device according to any one of <7> to <9>, in which the outer peripheral surface of the protruding portion has a distal end side outer peripheral surface, a proximal end side outer peripheral surface having a diameter larger than that of the distal end side outer peripheral surface, and a step surface that couples the distal end side outer peripheral surface and the proximal end side outer peripheral surface, and the covering portion covers only the proximal end side outer peripheral surface of the outer peripheral surface of the protruding portion.
In the tenth aspect, when the resin sealing portion is formed by insert molding, which is a type of injection molding, the step surface can suppress formation of burrs. As a result, the heat exchange device of the tenth aspect is excellent in an appearance.
<11> A heat exchange device according to an eleventh aspect of the disclosure is the heat exchange device according to any one of <5> to <10>, in which the heat exchange main body portion has a facing wall portion facing the metal wall portion, the joint member has a projecting portion that projects from the outer peripheral surface of the protruding portion over an entire periphery of the outer peripheral surface of the protruding portion, the projecting portion has a notch portion that forms a flow path between the notch and an inner surface of the facing wall portion, and the flow path causes the hollow portion and the internal flow path to communicate with each other.
In the eleventh aspect, the joint member does not have the notch portion, and can form a passage for the heat exchange medium having a larger volume than a case where the hollow portion and the internal flow path directly communicate with each other. Therefore, a pressure loss of the heat exchange medium flowing through the internal flow path is reduced. As a result, the heat exchange device of the eleventh aspect can efficiently allow the heat exchange medium to flow through the internal flow path.
<12> A heat exchange device according to a twelfth aspect of the disclosure is the heat exchange device according to <11>, in which a cross-sectional shape of the notch portion is an arch shape.
In the twelfth aspect, even when a pressing force is applied to the metal wall portion in a thickness direction of the metal wall portion, the flow path is less likely to be deformed as compared with a case where the flow path does not have an arch shape. Therefore, the heat exchange device of the twelfth aspect can reduce the pressure loss of the heat exchange medium flowing through the internal flow path. As a result, the heat exchange device of the twelfth aspect can efficiently allow the heat exchange medium to flow through the internal flow path.
<13> A heat exchange device according to a thirteenth aspect of the disclosure is the heat exchange device according to any one of <1> and <4> to <12>, in which the outer peripheral surface of the protruding portion is made of a metal, and a surface of the outer peripheral surface of the protruding portion in contact with the resin sealing portion is subjected to a roughening treatment.
In the thirteenth aspect, the surface of the protruding portion in contact with the resin sealing portion includes fine unevenness. Therefore, the resin sealing portion is firmly fixed to the protruding portion by the anchor effect as compared with a case where the roughening treatment is not performed. As a result, the heat exchange device according to the thirteenth aspect can maintain airtightness for a longer period of time.
<14> A heat exchange device according to a fourteenth aspect of the disclosure is the heat exchange device according to any one of <1> and <4> to <12>, in which the outer peripheral surface of the protruding portion is made of a resin, and the outer peripheral surface of the protruding portion and the resin sealing portion are fused.
In the disclosure, “fused” means a state in which the outer peripheral surface of the protruding portion and the resin sealing portion are fixed to each other by heat without an adhesive, a screw, or the like.
In the fourteenth aspect, the resin sealing portion and the joint member are firmly fixed to each other. As a result, the heat exchange device of the fourteenth aspect can maintain airtightness for a longer period of time.
<15> A heat exchange device according to a fifteenth aspect of the disclosure is the heat exchange device according to any one of <1> and <4> to <14>, in which the resin sealing portion is formed by injection molding.
In the fifteenth aspect, the resin sealing portion enters into a gap of the fine uneven portions on the surface of the metal wall portion in contact with the resin sealing portion. Therefore, the resin sealing portion is firmly fixed to the metal wall portion. As a result, the heat exchange device of the fifteenth aspect can maintain airtightness for a longer period of time.
<16> A method for manufacturing a heat exchange device according to a sixteenth aspect of the disclosure further includes: a preparation step of preparing a joint member having a protruding portion; an insert step of disposing the joint member inside a heat exchange main body portion having a metal wall portion including a through-hole and protruding the protruding portion toward an outside of the heat exchange main body portion via the through-hole; and a sealing step of forming the resin sealing portion in a gap between an inner peripheral surface of the through-hole and an outer peripheral surface of the protruding portion and sealing the gap.
In the disclosure, “disposing the joint member inside a heat exchange main body portion” indicates that a portion of the joint member is accommodated in the heat exchange main body portion.
In the sixteenth aspect, a heat exchange device having excellent airtightness can be obtained even when the joint member is not joined to the heat exchange main body portion by brazing or welding. The joint member is prepared in advance before the sealing step is executed. Therefore, the joint member can be molded into a more complicated shape than a case of resin molded in the sealing step. The complicated shape includes, for example, an undercut. Examples of the undercut include a packing groove and a connecting groove. Therefore, for example, a complicated connector such as a rotary connector can be connected to the protruding portion of the joint member in order to be connected to an external supply unit or an external discharge unit. The external supply unit supplies the heat exchange medium to the heat exchange device. The heat exchange medium is discharged from the heat exchange device to the external discharge unit. As a result, a heat exchange device that can be used in a wide variety of fields is obtained.
<17> A method for manufacturing a heat exchange device according to a seventeenth aspect of the disclosure is the method for manufacturing a heat exchange device according to <16>, in which the heat exchange main body portion has a pair of metal members facing each other, and a resin joint portion that joins the pair of metal members, one of the pair of metal members includes the metal wall portion, and in the sealing step, the resin sealing portion is formed and the resin joint portion is formed.
In the method for manufacturing a heat exchange device according to the seventeenth aspect, the resin sealing portion and the resin joint portion can be formed more efficiently than a case where the resin sealing portion and the resin joint portion are formed in separate steps.
<18> A method for manufacturing a heat exchange device according to an eighteenth aspect of the disclosure is the method for manufacturing a heat exchange device according to <16> or <17>, further including a roughening step of performing a roughening treatment on a surface of the metal wall portion with which the resin sealing portion is brought into contact, in which the roughening step is executed before the sealing step.
In the eighteenth aspect, before the sealing step is executed, a fine uneven structure is formed on a surface of the metal wall portion with which the resin sealing portion is brought into contact. Therefore, in the sealing step, for example, melt of the resin constituting the resin sealing portion easily enters the gap of the fine uneven structure. That is, by the anchor effect, the resin sealing portion that is firmly fixed to the metal wall portion is formed as compared with a case where the roughening treatment is not performed. As a result, a heat exchange device capable of maintaining airtightness for a long period of time is obtained.
<19> A heat exchange device according to a nineteenth aspect of the disclosure includes: a first metal plate having a through-hole; a second metal plate facing the first metal plate; a joint member that is sandwiched between the first metal plate and the second metal plate and to which a supply unit that supplies a heat exchange medium or a recovery unit that recovers the heat exchange medium is connected; and a resin fixing portion that is in contact with a peripheral edge portion of the first metal plate and the second metal plate and fixes the second metal plate to the first metal plate, in which the joint member includes: a recessed portion for forming an internal flow path through which the heat exchange medium flows with at least one of the first metal plate and the second metal plate, an opening exposed from the through-hole and for supplying or recovering the heat exchange medium, and a hollow portion for causing the opening and the internal flow path to communicate with each other.
In the nineteenth aspect, the internal flow path is formed even when a surrounding wall portion for forming the internal flow path is not machined and molded on at least one of the first metal plate or the second metal plate. In the heat exchange device according to the nineteenth aspect, by disposing a desired partition member in the internal flow path, a degree of freedom in designing the internal flow path through which the heat exchange medium flows can be easily improved.
<20> A heat exchange device according to a twentieth aspect of the disclosure is the heat exchange device according to <19>, further including a partition member that partitions the internal flow path, in which the partition member is disposed between the recessed portion and the second metal plate.
In the twentieth aspect, the internal flow path through which the heat exchange medium flows can be more freely designed.
<21> A heat exchange device according to a twenty-first aspect of the disclosure is the heat exchange device according to <19> or <20>, in which a gap is formed between the first metal plate and the second metal plate where the joint member is not in contact with a peripheral edge portion of each of the first metal plate and the second metal plate, and the gap is filled with the resin fixing portion.
The heat exchange device of the twenty-first aspect can more reliably maintain airtightness for a long period of time.
<22> A heat exchange device according to a twenty-second aspect of the disclosure is the heat exchange device according to any one of <19> to <21>, in which the recessed portion forms the internal flow path with the second metal plate therebetween.
In the twenty-second aspect, the internal flow path can be formed even when the joint member is not molded into a complicated structure.
<23> A heat exchange device according to a twenty-third aspect of the disclosure is the heat exchange device according to any one of <19> to <22>, in which surfaces of the first metal plate and the second metal plate in contact with the resin fixing portion are subjected to a roughening treatment.
In the twenty-third aspect, the surfaces of the first metal plate and the second metal plate in contact with the resin fixing portion include fine unevenness. Accordingly, the resin fixing portion is firmly fixed to the first metal plate and the second metal plate by the anchor effect as compared with a case where the roughening treatment is not performed. As a result, the heat exchange device of the twenty-third aspect can maintain airtightness for a long period of time.
<24> A heat exchange device according to a twenty-fourth aspect of the disclosure is the heat exchange device according to any one of <19> to <23>, in which a material of the joint member is a resin, and the joint member and the resin fixing portion are fused.
In the twenty-fourth aspect, the resin fixing portion and the joint member are firmly fixed to each other. As a result, the heat exchange device of the twenty-fourth aspect can maintain airtightness for a longer period of time.
According to the disclosure, a heat exchange device having excellent airtightness even when a joint member is not welded or brazed, and a method for manufacturing the heat exchange device are provided.
According to the disclosure, there is provided a heat exchange device capable of improving a degree of freedom in designing an internal flow path through which a heat exchange medium flows.
Hereinafter, embodiments of a heat exchange device according to the disclosure will be described with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and the description thereof will not be repeated.
A heat exchange device 1A according to a first embodiment is used to promote heat dissipation of an external heating element. The heating element generates heat during operation. Examples of the heating element include a CPU and a secondary battery. Examples of the secondary battery include an on-vehicle lithium ion battery.
As illustrated in
In the first embodiment, a side on which the joint member 20A of the heat exchange device 1A is disposed is defined as a rear side of the heat exchange device 1A, and an opposite side is defined as a front side of the heat exchange device 1A. A right side when the heat exchange device 1A is viewed from the front side is defined as a right side of the heat exchange device 1A, and the opposite side is defined as a left side of the heat exchange device 1A. In a direction orthogonal to a front-rear direction and a left-right direction of the heat exchange device 1A, a side on which the joint member 20A is disposed is defined as an upper side of the heat exchange device 1A, and the opposite side is defined as a lower side of the heat exchange device 1A. Note that these orientations do not limit the orientation of the heat exchange device of the disclosure at the time of use.
In
The heat exchange device 1A is of a plate type. The heat exchange device 1A has an upper main surface TS1. The joint member 20A and the resin sealing portion 30A are disposed on the upper main surface TS1 side of the heat exchange device 1A. As illustrated in
Dimensions of the heat exchange device 1A are not particularly limited, and can be selected according to an application or the like of the heat exchange device 1A. For example, an area of the lower main surface BS1 of the heat exchange device 1A may be within a range of 50 cm2 to 5,000 cm2. For example, a thickness of the heat exchange device 1A in a vertical direction may be within a range of 1 mm to 50 mm.
As illustrated in
As illustrated in
As illustrated in
Hereinafter, a state in which the upper metal member 11A and the lower metal member 12 are overlapped such that the lower main surface BS11 and the upper main surface TS12 face each other may be referred to as an “overlapped body 100”.
The resin joint portion 13 is formed over the entire periphery of a side surface SS100 of the overlapped body 100. In other words, as illustrated in
As illustrated in
The upper metal member 11A has a pair of through-holes HA. One of the pair of through-holes HA is for supply, and the other is for discharge.
The through-hole HA penetrates the upper metal member 11A along the vertical direction. The through-hole HA communicates with the internal flow path R1 (see
The material of the upper metal member 11A is metal, and may be, for example, at least one selected from the group consisting of iron, copper, nickel, gold, silver, platinum, cobalt, zinc, lead, tin, titanium, chromium, aluminum, magnesium, manganese, or alloys thereof. Examples of the alloy include stainless steel, brass, and phosphor bronze. Among them, from the viewpoint of thermal conductivity, the material of the upper metal member 11A is preferably at least one selected from aluminum, an aluminum alloy, copper, or a copper alloy, and more preferably copper or a copper alloy. From the viewpoint of weight reduction and securing strength, the material of the upper metal member 11A is more preferably aluminum and an aluminum alloy.
The lower metal member 12 is a container-shaped object opened upward. The shape of the lower metal member 12 viewed from above to below is a substantially rectangular shape having a long side in the front-rear direction. As illustrated in
As illustrated in
As illustrated in
The surrounding wall portion 121 has a front side wall portion 121A and a rear side wall portion 121B. The partition wall portion 122 extends from a center of the rear side wall portion 121B in the left-right direction toward the front side wall portion 121A. A front end portion 122A of the partition wall portion 122 and the front side wall portion 121A of the surrounding wall portion 121 are separated from each other.
As illustrated in
The lower main surface BS11 of the upper metal member 11A, an inner surface IS121 of the surrounding wall portion 121, and the upper main surface TS12 of the lower metal member 12 constitute the internal flow path R1 in the heat exchange device 1A.
The material of the lower metal member 12 is a metal, and may be the same as that exemplified as the material of the upper metal member 11A. The material of the lower metal member 12 may be the same as or different from the material of the upper metal member 11A.
The resin joint portion 13 joins the upper metal member 11A and the lower metal member 12. As shown in
The side surface recess R100 includes an edge side lower main surface BS11A, an outer surface OS121, and an edge side upper main surface TS12A.
As illustrated in
Hereinafter, the edge side lower main surface BS11A of the upper metal member 11A, the outer surface OS121 of the surrounding wall portion 121, the edge side upper main surface TS12A of the lower metal member 12, the side surface SS11 of the upper metal member 11A, and the side surface SS12 of the lower metal member 12 are referred to as “joining fixing surface”. The joining fixing surface is an example of a surface in contact with the resin joint portion of each of the pair of metal members.
The joining fixing surface is subjected to a roughening treatment. That is, the joining fixing surface has a fine uneven structure. Details of the roughening treatment will be described in a second roughening step to be described later.
The uneven structure formed by performing the roughening treatment on the joining fixing surface is not particularly limited as long as a joining strength between the upper metal member 11A and the lower metal member 12 is sufficiently obtained. An average hole diameter of the recesses in the uneven structure may be, for example, 5 nm to 250 µm, preferably 10 nm to 150 µm, and more preferably 15 nm to 100 µm. An average hole depth of the recesses in the uneven structure may be, for example, 5 nm to 250 µm, preferably 10 nm to 150 µm, and more preferably 15 nm to 100 µm. When either or both of the average hole diameter and the average hole depth of the recesses in the uneven structure are within the above numerical range, stronger joining tends to be obtained.
The average hole diameter and the average hole depth of the recesses in the uneven structure can be obtained by using an electron microscope or a laser microscope. Specifically, a surface and a cross section of the joining fixing surface are photographed. From the obtained photograph, 50 arbitrary recesses are selected, and the average hole diameter and the average hole depth of the recesses can be calculated as arithmetic average values from the hole diameter and the hole depth of the recesses, respectively.
The resin joint portion 13 is formed by injection molding. The material of the resin joint portion 13 is the same as the material of the resin sealing portion 30A. The material of the resin sealing portion 30A will be described later.
The joint member 20A is a molded body for supplying or discharging a cooling medium. As illustrated in
As illustrated in
The main body portion 23 has a contact surface S23. The contact surface S23 and a lower surface of the projecting portion 22 come into contact with the upper main surface TS12 of the lower metal member 12 in the heat exchange device 1A. The main body portion 23 firmly supports the protruding portion 21 by the contact surface S23 coming into contact with the upper main surface TS12.
As illustrated in
As illustrated in
As illustrated in
A radius r22 (see
As illustrated in
In the vertical direction, a depth H221 of the notch portion 221 is, for example, half a height H22 of the projecting portion 22 as illustrated in
The projecting portion 22 has six notch portions 221. Each of the six notch portions 221 is formed at equal intervals over an entire periphery of the outer peripheral surface S22 of the projecting portion 22. The cross-sectional shape of the notch portion 221 is an arch shape.
The material of the joint member 20A is a resin, and the outer peripheral surface S21 of the protruding portion 21 of the joint member 20A and the resin sealing portion 30A are fused. Therefore, the joint member 20A can cope with complication of a shape, weight reduction of a device, cost reduction, and the like as compared with a case where the joint member is made of a metal.
The resin constituting the joint member 20A is not particularly limited, and may be a thermoplastic resin, a thermosetting resin, or the like. The thermoplastic resin includes an elastomer. Examples of the thermoplastic resin include a polyolefin-based resin, polyvinyl chloride, polyvinylidene chloride, a polystyrene-based resin, an acrylonitrile-styrene (AS) resin, an acrylonitrile-butadiene-styrene (AB) resin, a polyester-based resin, a poly (meth) acryl-based resin, polyvinyl alcohol, a polycarbonate-based resin, a polyamide-based resin, a polyimide-based resin, a polyether-based resin, a polyacetal-based resin, a fluorine-based resin, a polysulfone-based resin, a polyphenylene sulfide resin, and a polyketone-based resin. Examples of the thermosetting resin include a phenol resin, a melamine resin, a urea resin, a polyurethane-based resin, an epoxy resin, and an unsaturated polyester resin. These resins may be used alone, or may be used in combination of two or more thereof.
The resin constituting the joint member 20A may include various compounding agents. Examples of the compounding agent include a filler, a heat stabilizer, an antioxidant, a pigment, a weathering agent, a flame retardant, a plasticizer, a dispersant, a lubricant, a release agent, and an antistatic agent.
The resins constituting the pair of joint members 20A may be the same as or different from each other.
As illustrated in
The resin sealing portion 30A has a covering portion 31. The covering portion 31 covers the periphery of the through-hole HA of the upper main surface TS11 of the upper metal member 11A. The covering portion 31 has a first covering portion 311. The first covering portion 311 covers a first region XA of the upper main surface TS11 of the upper metal member 11A. The first region XA indicates a region of the upper main surface TS11 of the upper metal member 11A facing the projecting portion 22 of the joint member 20A. The first covering portion 311 is formed over an entire periphery of the through-hole HA. A shape of the covering portion 31 viewed from above to below is a ring shape.
A thickness of the first covering portion 311 in the vertical direction is preferably 0.5 mm to 6.0 mm, and more preferably 1.0 mm to 4.0 mm from the viewpoint of airtightness of the heat exchange device 1A.
Hereinafter, the inner peripheral surface S11 of the through-hole HA of the upper metal member 11A and the first region XA of the upper main surface TS11 of the upper metal member 11A will be referred to as a “sealing fixing surface”. The sealing fixing surface is an example of a surface of the metal wall portion with which the resin sealing portion is brought into contact.
The sealing fixing surface is subjected to a roughening treatment and has a fine uneven structure. Details of the roughening treatment will be described in a first roughening step described later.
The uneven structure of the sealing fixing surface is not particularly limited as long as the joining strength between the resin sealing portion 30A and the upper metal member 11A is sufficiently obtained, but may be the same as the uneven structure of the joining fixing surface.
The resin sealing portion 30A is formed by injection molding. A material of the resin sealing portion 30A is a resin having compatibility with the resin constituting the joint member 20A. Accordingly, the resin sealing portion 30A and the outer peripheral surface S21 of the protruding portion 21 of the joint member 20A are fused. In the disclosure, “having compatibility” indicates that the resin constituting the resin sealing portion 30A is mixed without being separated in an atmosphere where the resin is melted. The resin constituting the resin sealing portion 30A preferably has the same main component as the resin constituting the joint member 20A.
The resins constituting the pair of resin sealing portions 30A may be the same as or different from each other.
The heat exchange device 1A is installed and used such that, for example, the lower main surface BS1 of the heat exchange device 1A is in contact with the heating element. At this time, an external supply unit is coupled to one joint member 20A. The external supply unit supplies a cooling medium to the heat exchange device 1A. An external discharge unit is coupled to the other joint member 20A. The cooling medium is discharged from the heat exchange device 1A to the external discharge unit. The heat of the heating element is conducted to the cooling medium filled in the internal flow path R1 via the heat exchange main body portion 10A.
As illustrated in
The method for manufacturing the heat exchange device 1A includes a preparation step, a first roughening step, a second roughening step, an insert step, and a sealing step. The preparation step, the insert step, and the sealing step are executed in this order. Each of the first roughening step and the second roughening step is not particularly limited as long as it is executed before the sealing step. The first roughening step may be executed simultaneously with the second roughening step, may be executed after the second roughening step is executed, or may be executed before the second roughening step is executed.
In the preparation step, the joint member 20A is prepared. That is, the joint member 20A is molded in advance before the sealing step is executed. Therefore, the joint member 20A can be molded into a more complicated shape as compared with a case of being injection molded in the sealing step. The complicated shape includes, for example, an undercut. The undercut includes a packing groove or a connecting groove. Therefore, for example, a complicated connector such as a rotary connector can be connected to the protruding portion 21 of the joint member 20A in order to be connected to an external supply unit or an external discharge unit. As a result, the heat exchange device 1A that can be used in various fields is obtained.
The method for preparing the joint member 20A is not particularly limited, and can be appropriately adjusted according to the application of the heat exchange device 1A. Examples of a method for preparing the j oint member 20A include resin molding. Examples of the resin molding include injection molding, cast molding, press molding, insert molding, extrusion molding, and transfer molding.
In the first roughening step, the sealing fixing surface of the upper metal member 11A is subjected to a roughening treatment. Accordingly, a fine uneven structure is formed on each of the sealing fixing surfaces before executing the sealing step. Therefore, in the sealing step, a resin melt (hereinafter, referred to as a “resin melt”) constituting the resin sealing portion 30A easily enters the gap of the fine uneven structure of the sealing fixing surface by an injection pressure. In other words, by the anchor effect, it is possible to obtain a resin sealing portion that is firmly fixed to the upper metal member 11A as compared with a case where the roughening treatment is not performed. As a result, the heat exchange device 1A capable of maintaining airtightness for a long period of time is obtained.
The method for performing the roughening treatment is not particularly limited. The method for performing the roughening treatment is, for example, a method using a laser as disclosed in Japanese Patent No. 4020957; an immersion method using aqueous solution of inorganic base such as NaOH or inorganic acid such as HCl or HNO3; a method using anodization as disclosed in Japanese Patent No. 4541153; a substituted crystallization as disclosed in WO 2015-8847; an immersion method as disclosed in WO 2009/31632; a hot water treatment method as disclosed in Japanese Patent Application Laid-Open (JP-A) No. 2008-162115; blasting, or the like. The method for performing the roughening treatment can be selectively used according to the material of the sealing fixing surface of the upper metal member 11A, the state of the desired uneven structure, and the like.
The roughening treatment may be performed, for example, on a portion different from the sealing fixing surface of the upper metal member 11A. For example, of the upper main surface TS11 of the upper metal member 11A, the roughening treatment may be performed around the sealing fixing surface.
In the first roughening step, the sealing fixing surface may be subjected to a treatment of adding a functional group (hereinafter, described as “surface modification treatment”) in addition to the roughening treatment. By subjecting the sealing fixing surface to the surface modification treatment, a chemical bonding between the sealing fixing surface and the resin sealing portion 30A increases. As a result, the joining strength of the resin sealing portion 30A to the upper metal member 11A tends to be further improved.
The surface modification treatment is preferably performed simultaneously with or after the roughening treatment. The method for performing the surface modification treatment is not particularly limited, and can be appropriately adopted by a known method.
In the second roughening step, the joining fixing surface of the overlapped body 100 is subjected to a roughening treatment. Accordingly, a fine uneven structure is formed on the joining fixing surface of the overlapped body 100 before executing the sealing step. Therefore, in the sealing step, the resin melt easily enters the gap of the fine uneven structure of the joining fixing surface by an injection pressure. In other words, by the anchor effect, the resin joint portion 13 is obtained in which the upper metal member 11A and the lower metal member 12 are joined more firmly than in a case where the roughening treatment is not performed. As a result, the heat exchange device 1A capable of maintaining airtightness for a long period of time is obtained.
Examples of the method for performing the roughening treatment include the same methods as those exemplified as the method for performing the roughening treatment in the first roughening step. The method for performing the roughening treatment in the second roughening step may be the same as or different from the method for performing the roughening treatment in the first roughening step. When the second roughening step is executed simultaneously with the first roughening step, the method for performing the roughening treatment in the second roughening step is the same as the method for performing the roughening treatment in the first roughening step.
In the second roughening step, in addition to the roughening treatment, the surface modification treatment may be performed to the joining fixing surface of the overlapped body 100 in the same manner as in the first roughening step.
In the insert step, the pair of joint members 20A is disposed inside the heat exchange main body portion 10A, and the protruding portions 21 of the pair of joint members 20A protrude toward the outside of the heat exchange main body portion 10A via the through-holes HA.
Specifically, in the insert step, as illustrated in
In the sealing step, the resin sealing portion 30A is formed in a gap between the inner peripheral surface S11 of the through-hole HA and the outer peripheral surface S21 of the protruding portion 21, thereby sealing the gap and forming the resin joint portion 13. Accordingly, the resin sealing portion 30A and the resin joint portion 13 are formed more efficiently than a case where the resin sealing portion 30A and the resin joint portion 13 are formed in separate steps. Even when the joint member 20A is not joined to the heat exchange main body portion 10A by brazing or welding, the heat exchange device 1A having excellent airtightness can be obtained.
Specifically, in the sealing step, the resin sealing portion 30A is formed in a gap between the inner peripheral surface S11 of the through-hole HA and the outer peripheral surface S21 of the protruding portion 21 of the j oint member 20A by injection molding, and the resin joint portion 13 is formed in the side surface recess R100.
An injection molding machine is used for the injection molding. The injection molding machine includes an injection molding mold, an injection device, and a mold clamping device. The injection molding mold includes a movable-side mold and a fixed-side mold. The fixed-side mold is fixed to the injection molding machine. The movable-side mold is movable with respect to the fixed-side mold. The injection device injects the resin melt into a sprue of the injection molding mold at a predetermined injection pressure. The mold clamping device clamps the movable-side mold at a high pressure so that the movable-side mold is not opened by a filling pressure of the resin melt.
First, the movable-side mold is opened, the insert is placed on the fixed-side mold, the movable-side mold is closed, and the mold is clamped. That is, the insert is accommodated in the injection molding mold. Accordingly, a first space for forming the resin sealing portion 30A, a second space for forming the resin joint portion 13, and a third space for accommodating the protruding portion 21 in the injection molding mold are formed between the insert and the injection molding mold.
Next, the injection molding machine fills the first space and the second space with the resin melt at a high pressure.
At this time, the projecting portion 22 of the joint member 20A is in contact with the lower main surface BS11 of the upper metal member 11A and the upper main surface TS12 of the lower metal member 12. That is, the projecting portion 22 functions as a support of the upper metal member 11A. Accordingly, even when the injection pressure is applied downward to the upper metal member 11A, the upper metal member 11A is hardly deformed. Further, a path through which the resin melt intrudes into the internal flow path R1 of the heat exchange main body portion 10A is blocked by the projecting portion 22. Therefore, the projecting portion 22 suppresses intrusion of the resin melt into the internal flow path R1.
Next, the resin melt in the injection molding mold is cooled and solidified. Accordingly, the resin sealing portion 30A and the resin joint portion 13 are formed in the insert. That is, the heat exchange device 1A is obtained.
As described with reference to
Accordingly, the heat exchange device 1A can prevent leakage of the cooling medium or intrusion of foreign matter from the outside of the heat exchange device 1A from the gap between the through-hole HA and the protruding portion 21 of the joint member 20A. That is, the heat exchange device 1A has excellent airtightness even when the joint member 20A is not joined to the heat exchange main body portion 10A by brazing or welding.
As described with reference to
Accordingly, the projecting portion 22 functions as a support of the upper metal member 11A. Therefore, even when a pressing force is applied downward to the upper metal member 11A, the upper metal member 11A is hardly deformed. For example, when the resin sealing portion 30A is formed by injection molding, the projecting portion 22 serves as a support of the upper metal member 11A against injection pressure. Therefore, the upper metal member 11A is hardly deformed. As a result, the heat exchange device 1A can reduce the pressure loss of the heat exchange medium flowing through the internal flow path R1. That is, the heat exchange device 1A can efficiently cause the cooling heat medium to flow through the internal flow path R1.
As described with reference to
Accordingly, the covering portion 31 is firmly fixed to the upper metal member 11A by the anchor effect as compared with a case where the roughening treatment is not performed. As a result, the heat exchange device 1A can maintain airtightness for a longer period of time.
As described with reference to
Accordingly, the contact area between the resin sealing portion 30A and the upper metal member 11A is larger than that in a case where the resin sealing portion 30A does not have the covering portion 31. Therefore, the resin sealing portion 30A is firmly fixed to the upper metal member 11A as compared with a case where the resin sealing portion 30A does not have the covering portion 31. As a result, the heat exchange device 1A can maintain airtightness for a long period of time.
As described with reference to
Accordingly, for example, even when the resin sealing portion 30A is injection-molded and the thickness of the upper metal member 11A is relatively thin, the occurrence of deformation of the upper metal member 11A due to the injection pressure is suppressed. Further, the contact area between the resin sealing portion 30A and the upper metal member 11A is larger than that in a case where the resin sealing portion 30A does not have the first covering portion 31. Therefore, the resin sealing portion 30A is more firmly fixed to the metal wall portion. As a result, the heat exchange device 1A can maintain airtightness for a longer period of time.
As described with reference to
Accordingly, the joint member 20A does not have the notch portion 221, and can form a passage of a cooling medium having a larger volume than a case where the hollow portion R20 and the internal flow path R1 directly communicate with each other. Therefore, the pressure loss of the cooling medium flowing through the internal flow path R1 is reduced. As a result, the heat exchange device 1A can efficiently cause the cooling medium to flow through the internal flow path R1.
As described with reference to
Accordingly, even when a pressing force is applied downward to the upper metal member 11A, the flow path R221 is less likely to be deformed as compared with a case of not having an arch shape. Therefore, the pressure loss of the cooling medium flowing through the internal flow path R1 is reduced. As a result, the heat exchange device 1A can cause the cooling medium to flow through the internal flow path R1 more efficiently.
As described with reference to
Accordingly, the resin sealing portion 30A and the joint member 20A are firmly fixed to each other. As a result, the heat exchange device 1A can maintain airtightness for a longer period of time.
As described with reference to
Accordingly, the resin sealing portion 30A enters the gap of the fine uneven portion of the sealing fixing surface. Therefore, the resin sealing portion 30A is firmly fixed to the upper metal member 11A. The resin joint portion 13 enters the gap of the fine uneven portion of the joining fixing surface. Therefore, the resin joint portion 13 firmly joins the upper metal member 11A and the lower metal member 12. As a result, the heat exchange device 1A can maintain airtightness for a longer period of time.
A heat exchange device 1B according to a second embodiment is different from the heat exchange device 1A according to the first embodiment mainly in that the outer peripheral surface of the protruding portion has a step surface.
The heat exchange device 1B includes a heat exchange main body portion 10A, a pair of joint members 20B, and a pair of resin sealing portions 30B.
As illustrated in
As illustrated in
The radius r22 (see
The method for manufacturing the heat exchange device 1B according to the second embodiment is executed in the same manner as the method for manufacturing the heat exchange device 1A according to the first embodiment.
The method for manufacturing the heat exchange device 1B includes a preparation step, a first roughening step, a second roughening step, an insert step, and a sealing step.
In the sealing step, when the molds of the movable-side mold 91 and the fixed-side mold 92 of the injection molding mold 90 are clamped, as illustrated in
In the second embodiment, a part of a transfer side surface 91S of the movable-side mold 91 is in contact with the step surface S21A. That is, a path connecting the first space R91 and the third space R93 is blocked by the contact between the transfer side surface 91S and the step surface S21A. Therefore, even when the first space R91 is filled with the resin melt, the molten resin in the first space R91 does not move into the third space R93. As a result, the generation of burrs caused by the intrusion of the resin melt into the third space R93 is suppressed. That is, the heat exchange device 1B is obtained in which an unnecessary resin shape such as burrs is not formed.
As described with reference to
Accordingly, when the resin sealing portion 30B is formed by insert molding, which is one type of injection molding, the step surface S21A can suppress the formation of the burrs. As a result, the heat exchange device 1B is excellent in an appearance.
The heat exchange device 1B according to the second embodiment has the same action and effect as those of the heat exchange device 1A according to the first embodiment.
A heat exchange device 1C according to a third embodiment is different from the heat exchange device 1A according to the first embodiment in a shape of a joint member.
The heat exchange device 1C includes a heat exchange main body portion 10A, a pair of joint members 20C, and a pair of resin sealing portions 30B.
The joint member 20C has a protruding portion 21, a hollow portion R20, a projecting portion 22, and a main body portion 23. As illustrated in
The outer peripheral surface S21 of the protruding portion 21 has an upper annular groove S21D and a lower annular groove S21E. The upper annular groove S21D is located above the lower annular groove S21E. Each of the upper annular groove S21D and the lower annular groove S21E is formed over the entire periphery of the outer peripheral surface S21.
As illustrated in
The connector component 40 is attached to the protruding portion 21 of the joint member 20C.
As illustrated in
As illustrated in
The housing portion 411 is a substantially cylindrical object.
The connecting protruding portion 412 is formed for connecting an external supply unit or a discharge unit. The connecting protruding portion 412 is located at an upper portion of the housing portion 411. The connecting protruding portion 412 protrudes in a direction orthogonal to the vertical direction with respect to the outer peripheral surface S411 of the housing portion 411. The connecting protruding portion 412 has an opening H41. The cooling medium is supplied from the external supply unit or discharged to the external discharge unit through the opening H41 of the connector component 40. A connecting groove G412 for fixing the external supply unit is formed on the outer peripheral surface S412 of the connecting protruding portion 412 of the connector component 40.
The lid portion 42 is fitted into the fitting recess 413. The fitting recess 413 is formed so as to be located on the side opposite to the connecting protruding portion 412 in the outer peripheral surface S411 of the housing portion 411.
The hollow portion R41 causes the opening H41 and the opening H21 of the protruding portion 21 of the joint member 20C to communicate with each other. The hollow portion R41 is formed inside the connecting protruding portion 412 and the housing portion 411.
The lid portion 42 has a fitting portion 421 and an engagement protrusion portion 422. The fitting portion 421 is fitted into the fitting recess 413 of the main body portion 41. The engagement protrusion portion 422 of the connector component 40 is engaged with the lower annular groove S21E of the joint member 20C when the fitting portion 421 is fitted into the fitting recess 413 of the main body portion 41. Accordingly, the connector component 40 is rotatable with respect to the joint member 20C along the lower annular groove S21E.
The material of the connector component 40 is not particularly limited, and is, for example, a metal or a resin.
As illustrated in
The heat exchange device 1C according to the third embodiment has the same action and effect as those of the heat exchange device 1A according to the first embodiment.
A heat exchange device 1D according to a fourth embodiment is different from the heat exchange device 1A according to the first embodiment mainly in that the projecting portion is not in direct contact with the lower main surface of the upper metal member.
The heat exchange device 1D includes a heat exchange main body portion 10A, a pair of joint members 20D, and a pair of resin sealing portions 30D.
The joint member 20D has a protruding portion 21, a hollow portion R20, a projecting portion 22, and a main body portion 23. As illustrated in
The resin sealing portion 30D has a filling portion 32. The filling portion 32 fills a gap between the projecting portion 22 and the lower main surface BS11 of the upper metal member 11A. The resin sealing portion 30D does not have the covering portion 31.
The heat exchange device 1D according to the fourth embodiment has the same action and effect as those of the heat exchange device 1A according to the first embodiment.
A heat exchange device 1E according to a fifth embodiment is different from the heat exchange device 1A according to the first embodiment mainly in that the covering portion of the resin sealing portion further covers the outside of the first region of the upper main surface of the upper metal member.
The heat exchange device 1E includes a heat exchange main body portion 10A, a pair of joint members 20B, and a pair of resin sealing portions 30E.
As illustrated in
From the viewpoint of improving the joining strength of the resin sealing portion 30E to the upper metal member 11A, an upper limit of a diameter D30 (see
As described with reference to
Accordingly, the contact area between the resin sealing portion 30E and the pair of sealing fixing surfaces is wider than that in the first embodiment. Therefore, the resin sealing portion 30E is more firmly fixed to the upper metal member 11A than in the first embodiment. As a result, the heat exchange device 1E can maintain airtightness for a longer period of time than in the first embodiment.
The heat exchange device 1E according to the fifth embodiment has the same action and effect as those of the heat exchange device 1A according to the first embodiment.
A heat exchange device 1F according to a sixth embodiment is different from the heat exchange device 1A according to the first embodiment mainly in that each of a protruding portion, a through-hole, and a covering portion has a substantially square shape.
The heat exchange device 1F includes a heat exchange main body portion 10F, a pair of joint members 20F, and a pair of resin sealing portions 30F.
As illustrated in
As illustrated in
In the sixth embodiment, the shape of the projecting portion 22 viewed from above to below is a substantially square ring shape. As illustrated in
As illustrated in
In the sixth embodiment, as described above, the radius rIC22 of the inscribed circle IC22 of the projecting portion 22 is the same as the radius r22 described in the second embodiment. That is, in the plane orthogonal to the vertical direction, a radius r311 (see
The heat exchange device 1F according to the sixth embodiment has the same action and effect as those of the heat exchange device 1A according to the first embodiment.
A heat exchange device 1G according to a seventh embodiment is different from the heat exchange device 1A according to the first embodiment mainly in that a resin sealing portion has a step portion.
The heat exchange device 1G according to the seventh embodiment includes a heat exchange main body portion 10A, a pair of joint members 20A, and a pair of resin sealing portions 30G.
As illustrated in
The resin sealing portion 30G further has a step portion 33. The step portion 33 is located on the protruding portion 21 side and on the upper side with respect to the covering portion 31. The step portion 33 is formed over the entire periphery of the outer peripheral surface S21 of the protruding portion 21. The covering portion 31 and the step portion 33 are integrated. That is, the step portion 33 protrudes upward from the covering portion 31 along the outer peripheral surface S21 of the protruding portion 21. The shape of the step portion 33 viewed from above to below is a ring shape.
In the seventh embodiment, a thickness Z311 (see
Each of the thickness Z311 (see
The heat exchange device 1G according to the seventh embodiment has the same action and effect as those of the heat exchange device 1A according to the first embodiment.
A heat exchange device 1H according to an eighth embodiment is different from the heat exchange device 1A according to the first embodiment mainly in that the covering portion 31 of the resin sealing portion 30 does not have the first covering portion 311.
The heat exchange device 1H includes a heat exchange main body portion 10A, a pair of joint members 20B, and a pair of resin sealing portions 30H.
As illustrated in
The resin sealing portion 30H has a covering portion 31. The covering portion 31 of the resin sealing portion 30H covers only the proximal end side outer peripheral surface S21C of the outer peripheral surface S21 of the protruding portion 21. The covering portion 31 of the resin sealing portion 30H covers a part of the first region XA of the upper main surface TS11 of the upper metal member 11A.
Hereinafter, an outer edge portion 34 of the covering portion 31 of the resin sealing portion 30H on the side opposite to the protruding portion 21 side is referred to as an “outer edge covering portion 34”.
The resin sealing portion 30H has a covering portion 31 and a step portion 33.
In the eighth embodiment, a thickness Z34 (see
Each of the thickness Z34 (see
The heat exchange device 1H according to the eighth embodiment has the same action and effect as those of the heat exchange device 1A according to the first embodiment.
In the ninth embodiment, a heat exchange device 1J is used to promote heat dissipation of an external heating element. Examples of the heating element include those the same as those exemplified as the heating element according to the first embodiment.
As illustrated in
In the ninth embodiment, the side of the heat exchange device 1J on which the second component 70J is disposed is defined as a rear side of the heat exchange device 1J, and the opposite side is defined as a front side of the heat exchange device 1J. The right side when the heat exchange device 1J is viewed from the front side is defined as a right side of the heat exchange device 1J, and the opposite side is defined as a left side of the heat exchange device 1J. In the direction orthogonal to the front-rear direction and the left-right direction of the heat exchange device 1J, the side on which the second component 70J is disposed is defined as an upper side of the heat exchange device 1J, and the opposite side is defined as a lower side of the heat exchange device 1J. Note that these orientations do not limit the orientation of the heat exchange device of the disclosure at the time of use.
In
The second component 70J is attached to the heat exchange main body portion 10A and the first component 60J so as to be rotatable about an axis A. The axis A is substantially parallel to the vertical direction.
The O-ring 50 is interposed between the first component 60J and the second component 70J.
As illustrated in
The dimensions of the heat exchange device 1J are not particularly limited, and can be selected according to the application or the like of the heat exchange device 1J. For example, an area of the lower main surface BS1 of the heat exchange device 1J may be in the range of 50 cm2 to 5,000 cm2. For example, a thickness of the heat exchange device 1J in the vertical direction may be within a range of 1 mm to 50 mm.
The heat exchange main body portion 10A according to the ninth embodiment is similar to the heat exchange main body portion 10A according to the first embodiment.
The first component 60J covers the through-hole HA.
As illustrated in
The joint member 20J is a molded body for supplying or discharging the cooling medium. As illustrated in
As illustrated in
The main body portion 213 has a contact surface S213. The contact surface S213 comes into contact with the upper main surface TS12 of the lower metal member 12 in the heat exchange device 1J. The main body portion 213 firmly supports the first connecting portion 211 by the contact surface S213 coming into contact with the upper main surface TS12.
The second component 70J is connected to the first connecting portion 211. As illustrated in
As shown in
The distal end side outer peripheral surface S211A has an upper annular fitting groove G211A and a lower annular fitting groove G211B. The upper annular fitting groove G211A is located above the lower annular fitting groove G211B. Each of the upper annular fitting groove G211A and the lower annular fitting groove G211B is formed over the entire periphery of the outer peripheral surface S211 of the joint member 20J.
The O-ring 50 is fitted into the upper annular fitting groove G211A. An engagement protrusion portion 322 of the first component 60J described later with reference to
As illustrated in
As illustrated in
A radius r212 (see
As illustrated in
In the vertical direction, a depth H214 (see
The projecting portion 212 has six notch portions 214. As illustrated in
A material of the joint member 20J is a resin. That is, the outer peripheral surface S211 of the first connecting portion 211 is made of a resin. The outer peripheral surface S211 of the first connecting portion 211 of the joint member 20J and the resin fixing portion 30J are fused. Therefore, as compared with a case where the joint member 20J is made of a metal, it is possible to cope with complication of a shape, weight reduction of a device, cost reduction, and the like.
The resin constituting the joint member 20J is not particularly limited, and may be the same as that exemplified as the resin constituting the joint member 20A according to the first embodiment.
The resin fixing portion 30J is fixed to the upper metal member 11A. As illustrated in
The resin fixing portion 30J has a covering portion 223. The covering portion 223 of the resin fixing portion 30J covers the periphery of the through-hole HA of the upper main surface TS11 of the upper metal member 11A. The covering portion 223 of the resin fixing portion 30J has a first covering portion 2231. The first covering portion 2231 covers the first region XA of the upper main surface TS11 of the upper metal member 11A. The first region XA indicates a region of the upper main surface TS11 of the upper metal member 11A facing the projecting portion 212 of the joint member 20J. The first covering portion 2231 is formed over the entire periphery of the through-hole HA. The shape of the covering portion 231 viewed from above to below is a ring shape.
A thickness of the first covering portion 2311 in the vertical direction can be appropriately adjusted according to the application of the heat exchange device 1J. For example, the thickness of the first covering portion 2311 is preferably 0.5 mm to 6.0 mm, and more preferably 1.0 mm to 4.0 mm from the viewpoint of airtightness of the heat exchange device 1J.
The sealing fixing surface is subjected to a roughening treatment in the same manner as in the first embodiment.
The resin fixing portion 30J is formed by injection molding. A material of the resin fixing portion 30J is a resin having compatibility with the resin constituting the joint member 20J. Accordingly, the resin fixing portion 30J and the outer peripheral surface S211 of the first connecting portion 211 of the joint member 20J are fused. The main component of the resin constituting the resin fixing portion 30J is preferably the same as the resin constituting the joint member 20J.
The second component 70J is connected to the first component 60J. As illustrated in
The main body portion 71 has a housing portion 711, a second connecting portion 712, a fitting recess 713, and a second hollow portion R71.
The housing portion 711 is a substantially cylindrical object.
The second connecting portion 712 is formed to be connected with an external supply unit. The external supply unit supplies the cooling medium to the heat exchange device 1J. The second connecting portion 712 is located at an upper portion of the housing portion 711. The second connecting portion 712 protrudes in a direction orthogonal to the vertical direction with respect to an outer peripheral surface S711 of the housing portion 711. The second connecting portion 712 has a second opening H71. The cooling medium is supplied from the external supply unit or discharged from the external discharge unit through the second opening H71 of the second component 70J. On the outer peripheral surface S712 of the second connecting portion 712 of the second component 70J, a connecting groove G712 for fixing the external supply unit or discharge unit is formed.
The lid portion 72 is fitted into the fitting recess 713. The fitting recess 713 is formed so as to be located on the side opposite to the second connecting portion 712 in the outer peripheral surface S711 of the housing portion 711.
The second hollow portion R71 causes the second opening H71 and the first opening H211 of the first connecting portion 211 of the joint member 20J to communicate with each other. The first hollow portion R211 is formed inside the second connecting portion 712 and the housing portion 711.
The lid portion 72 has a fitting portion 721 and an engagement protrusion portion 722. The fitting portion 721 is fitted into the fitting recess 713 of the main body portion 71. The engagement protrusion portion 722 of the second component 70J engages with the lower annular fitting groove G211B of the joint member 20J when the fitting portion 721 is fitted into the fitting recess 713 of the main body portion 71. Accordingly, the second component 70J is rotatable with respect to the joint member 20J along the lower annular fitting groove G211B, that is, about the axis A (see
A material of the second component 70J is not particularly limited, and is, for example, a metal or a resin.
The resins constituting the pair of second components 70J may be the same as or different from each other.
The O-ring 50 seals a gap between the first component 60J and the second component 70J. The O-ring 50 prevents leakage of a cooling medium or intrusion of foreign matter from the outside through a gap between the second component 70J and the first connecting portion 211 of the joint member 20J.
The heat exchange device 1J is installed and used such that, for example, the lower main surface BS1 of the heat exchange device 1J comes into contact with the heating element. At this time, an external supply unit is coupled to one second component 70J. An external discharge unit is coupled to the other second component 70J. The heat of the heating element is conducted to the cooling medium filled in the internal flow path R1 via the heat exchange main body portion 10A.
As illustrated in
The method for manufacturing the heat exchange device 1J includes a preparation step, a first roughening step, a second roughening step, an insert step, and a sealing step. The preparation step, the insert step, and the sealing step are executed in this order. The first roughening step and the second roughening step are not particularly limited as long as they are executed before the sealing step. The first roughening step may be executed simultaneously with the second roughening step, may be executed after the second roughening step is executed, or may be executed before the second roughening step is executed.
In the preparation step, the joint member 20J is prepared. That is, the joint member 20J is molded in advance before the sealing step is executed. Therefore, the joint member 20J can be molded into a more complicated shape as compared with a case of being injection molded in the sealing step. As a result, similarly to the first embodiment, the heat exchange device 1J that can be used in various fields can be obtained.
A method for preparing the joint member 20J is not particularly limited, and can be appropriately adjusted according to the application of the heat exchange device 1J. Examples of the method for preparing the joint member 20J include resin molding. Examples of the resin molding include injection molding, cast molding, press molding, insert molding, extrusion molding, and transfer molding.
The first roughening step is executed in the same manner as the first roughening step according to the first embodiment.
The second roughening step is executed in the same manner as the second roughening step according to the first embodiment.
In the insert step, the joint member 20J is disposed inside the heat exchange main body portion 10A, and the first connecting portion 211 of the joint member 20J protrudes toward the outside of the heat exchange main body portion 10A via the through-hole HA. In the disclosure, “the joint member 20J is disposed inside the heat exchange main body portion 10A” indicates that a part of the joint member 20J is accommodated in the heat exchange main body portion 10A.
Specifically, as shown in
In the sealing step, the resin fixing portion 30J is formed in a gap between the inner peripheral surface S11 of the through-hole HA and the outer peripheral surface S211 of the first connecting portion 211, thereby sealing the gap and forming the resin joint portion 13. Accordingly, the resin fixing portion 30J and the resin joint portion 13 are formed more efficiently than a case where each of the resin fixing portion 30J and the resin joint portion 13 is formed in separate steps. Even when the joint member 20J is not joined to the heat exchange main body portion 10A by brazing or welding, the heat exchange device 1J having excellent airtightness can be obtained.
Specifically, in the sealing step, the resin fixing portion 30J is formed in a gap between the inner peripheral surface S11 of the through-hole HA and the outer peripheral surface S211 of the first connecting portion 211 of the joint member 20J by injection molding, and the resin joint portion 13 is formed in the side surface recess R100.
An injection molding machine is used for the injection molding. The injection molding machine includes an injection molding mold 90, an injection device, and a mold clamping device. As illustrated in
First, the movable-side mold 91 is opened, the insert 93 is placed on the fixed-side mold 92, the movable-side mold 91 is closed, and the mold is clamped. That is, the insert 93 is accommodated in the injection molding mold 90. Accordingly, the first space R91, the second space R92, and the third space R93 are formed between the insert 93 and the injection molding mold 90. The first space R91 indicates a space where the resin fixing portion 30J is formed. The second space R92 indicates a space where the resin joint portion 13 is formed. The third space R93 indicates a space for accommodating the first connecting portion 211 in the injection molding mold 90. Next, the injection molding machine fills the first space R91 and the second space R92 with the resin melt at a high pressure.
At this time, the projecting portion 212 of the joint member 20J is in contact with the lower main surface BS11 of the upper metal member 11A and the upper main surface TS12 of the lower metal member 12. That is, the projecting portion 212 functions as a support of the upper metal member 11A. Accordingly, even when the injection pressure is applied downward to the upper metal member 11A, the upper metal member 11A is hardly deformed. Further, a path through which the resin melt intrudes into the internal flow path R1 of the heat exchange main body portion 10A is blocked by the projecting portion 212. Therefore, the projecting portion 212 suppresses intrusion of the resin melt into the internal flow path R1.
A part of the transfer side surface 91S of the movable-side mold 91 comes into contact with the step surface S211C. That is, the path connecting the first space R91 and the third space R93 is blocked by the contact between the transfer side surface 91S and the step surface S211C. Therefore, even when the first space R91 is filled with the resin melt, the molten resin in the first space R91 does not move into the third space R93. As a result, the generation of burrs caused by the intrusion of the resin melt into the third space R93 is suppressed. That is, the heat exchange device 1J is obtained in which an unnecessary resin shape such as burrs is not formed.
Next, the resin melt in the injection molding mold 90 is cooled and solidified. Accordingly, the resin fixing portion 30J and the resin joint portion 13 are formed in the insert 93. That is, the heat exchange device 1J is obtained.
As described with reference to
Accordingly, the heat exchange device 1J can prevent leakage of the cooling medium or intrusion of foreign matter from the outside through the gap between the first component 60J and the upper metal member 11A. That is, the heat exchange device 1J is excellent in airtightness even when the first component 60J for supply and discharge is not joined to the heat exchange main body portion 10A by brazing or welding.
As described with reference to
Accordingly, the heat exchange device 1J can more reliably prevent leakage of the cooling medium or intrusion of foreign matter from the outside through the gap between the first component 60J and the second component 70J than a case where the heat exchange device 1J does not include the O-ring.
As described with reference to
Accordingly, the resin fixing portion 30J is firmly fixed to the upper metal member 11A by the anchor effect as compared with a case where the roughening treatment is not performed. As a result, the heat exchange device 1J can maintain airtightness for a long period of time.
As described with reference to
As described with reference to
Accordingly, the projecting portion 212 functions as a support of the upper metal member 11A. Therefore, even when a pressing force is applied downward to the upper metal member 11A, the upper metal member 11A is hardly deformed. For example, when the resin fixing portion 30J is formed by injection molding, the projecting portion 212 serves as a support of the upper metal member 11A against the injection pressure, so that the upper metal member 11A is hardly deformed. As a result, the pressure loss of the cooling medium flowing through the internal flow path R1 is reduced. That is, the heat exchange device 1J can maintain a sealability for a longer period of time.
As described with reference to
Accordingly, the contact area between the resin fixing portion 30J and the upper metal member 11A is larger than that in a case where the resin fixing portion 30J does not have the covering portion 223. Therefore, the resin fixing portion 30J is more firmly fixed to the upper metal member 11A than a case where the resin fixing portion 30J does not have the covering portion 223. As a result, the heat exchange device 1J can maintain airtightness for a long period of time.
As described with reference to
Accordingly, even when the resin fixing portion 30J is injection molded and the thickness of the upper metal member 11A is relatively thin, the occurrence of deformation of the upper metal member 11A due to the injection pressure is suppressed. Further, the contact area between the resin fixing portion 30J and the upper metal member 11A is larger than a case where the resin fixing portion 30J does not have the first covering portion 2231. Therefore, the resin fixing portion 30J is more firmly fixed to the upper metal member 11A. As a result, the heat exchange device 1J can maintain airtightness for a longer period of time.
As described with reference to
Accordingly, when the resin fixing portion 30J is formed by insert molding, which is one type of injection molding, the step surface S211C can suppress the formation of burrs. As a result, the heat exchange device 1J is excellent in an appearance.
As described with reference to
Accordingly, the joint member 20J does not have the notch portion 214, and can form a passage of a cooling medium having a larger volume than a case where the hollow portion R21 and the internal flow path R1 directly communicate with each other. Therefore, the pressure loss of the cooling medium flowing through the internal flow path R1 is reduced. As a result, the heat exchange device 1J can efficiently cause the cooling medium to flow through the internal flow path R1.
As described with reference to
Accordingly, even when a pressing force is applied downward to the upper metal member 11A, the flow path R214 is less likely to be deformed as compared with a case of not having an arch shape. Therefore, the pressure loss of the cooling medium flowing through the internal flow path R1 is reduced. As a result, the heat exchange device 1J can cause the cooling medium to flow through the internal flow path R1 more efficiently.
As described with reference to
Accordingly, the resin fixing portion 30J and the joint member 20J are firmly fixed to each other. As a result, the heat exchange device 1J can maintain airtightness for a longer period of time.
As described with reference to
Accordingly, the resin fixing portion 30J enters the gap of the fine uneven portions of the pair of sealing fixing surfaces. Therefore, the resin fixing portion 30J is firmly fixed to the upper metal member 11A. As a result, the heat exchange device 1J can maintain airtightness for a longer period of time.
A heat exchange device 1K according to a tenth embodiment is different from the heat exchange device 1J according to the ninth embodiment mainly in that the through-hole is covered with a joint member so that the through-hole is not exposed.
As illustrated in
The first component 60K has a joint member 20K and a resin fixing portion 30K. The joint member 20K does not include the resin fixing portion 30K.
The joint member 20K has a first connecting portion 211, a projecting portion 212, and a first hollow portion R21. The first connecting portion 211 and the projecting portion 212 are integrated.
As illustrated in
The engagement protrusion portion 722 of the lid portion 72 of the second component 70J is engaged with any one of the upper annular mounting groove G211C, the middle annular mounting groove G211D, and the lower annular mounting groove G211E. Accordingly, the second component 70J is connected to the first connecting portion 211 of the joint member 20K.
The projecting portion 212 is in contact only with the upper main surface TS11 of the upper metal member 11A. In other words, the joint member 20K is located on the upper main surface TS11 of the upper metal member 11A and covers the through-hole HA. The through-hole HA is not exposed.
The resin fixing portion 30K is fixed to the lower main surface BS 11 of the upper metal member 11A. Specifically, the resin fixing portion 30K covers the periphery of the through-hole HA of the lower main surface BS11 of the upper metal member 11A and the entire inner peripheral surface S21 of the first hollow portion R21 of the first connecting portion 211 of the joint member 20K.
The heat exchange device 1K according to the tenth embodiment has the same action and effect as those of the heat exchange device 1J according to the ninth embodiment.
A heat exchange device 1L according to an eleventh embodiment is different from the heat exchange device 1J according to the ninth embodiment mainly in that the through-hole is covered with a joint member so that the through-hole is not exposed.
As illustrated in
The first component 60L has a joint member 20L and a resin fixing portion 30L. The joint member 20L does not include the resin fixing portion 30L.
As illustrated in
The projecting portion 212 of the joint member 20L is in contact only with the upper main surface TS11 of the upper metal member 11A.
The resin fixing portion 30L is fixed to the upper main surface TS11 of the upper metal member 11A. Specifically, the resin fixing portion 30L covers the periphery of the projecting portion 212 of the upper main surface TS11 of the upper metal member 11A and the peripheral edge portion of the projecting portion 212.
The heat exchange device 1L according to the eleventh embodiment has the same action and effect as those of the heat exchange device 1J according to the ninth embodiment.
A heat exchange device 1M according to a twelfth embodiment is different from the heat exchange device 1J according to the ninth embodiment mainly in that the through-hole is covered with a joint member so that the through-hole is not exposed.
As illustrated in
The first component 60M has a joint member 20M and a resin fixing portion 30M. The joint member 20M does not include the resin fixing portion 30M.
As illustrated in
The projecting portion 212 of the joint member 20M is in contact only with the upper main surface TS11 of the upper metal member 11A.
The resin fixing portion 30M is fixed to the upper main surface TS11 and the lower main surface BS11 of the upper metal member 11A. Specifically, the resin fixing portion 30M covers the periphery of the through-hole HA of the lower main surface BS11 of the upper metal member 11A, the entire inner peripheral surface S21 of the first hollow portion R21 of the first connecting portion 211 of the joint member 20M, the periphery of the projecting portion 212 of the upper main surface TS11 of the upper metal member 11A, and the peripheral edge portion of the projecting portion 212.
The heat exchange device 1M according to the twelfth embodiment has the same action and effect as those of the heat exchange device 1J according to the ninth embodiment.
A heat exchange device 1N according to a thirteenth embodiment is different from the heat exchange device 1J according to the ninth embodiment mainly in that the projecting portion is not in direct contact with the lower main surface of the upper metal member.
As illustrated in
The first component 60N includes a joint member 20N and a resin fixing portion 30N. The joint member 20N does not include the resin fixing portion 30N.
The joint member 20N has a first connecting portion 211, a first hollow portion R21, a projecting portion 212, and a main body portion 213. As illustrated in
The resin fixing portion 30N has a filling portion 222. The filling portion 222 fills a gap between the projecting portion 212 and the lower main surface BS11 of the upper metal member 11A. That is, the projecting portion 212 is indirectly sandwiched between the upper metal member 11A and the lower metal member 12. The resin fixing portion 30N does not have the covering portion 223 (see
The heat exchange device 1N according to the thirteenth embodiment has the same action and effect as those of the heat exchange device 1J according to the ninth embodiment.
A heat exchange device 1P according to a fourteenth embodiment is different from the heat exchange device 1J according to the ninth embodiment mainly in that the covering portion of the resin fixing portion further covers the outside of the first region of the upper main surface of the upper metal member.
As illustrated in
The first component 60P has a joint member 20P and a resin fixing portion 30P. The joint member 20P does not include the resin fixing portion 30P.
As illustrated in
From the viewpoint of improving the joining strength of the resin fixing portion 30P to the upper metal member 11A, an upper limit of the diameter D22 (see
As described with reference to
The heat exchange device 1P according to the fourteenth embodiment has the same action and effect as those of the heat exchange device 1J according to the ninth embodiment.
A heat exchange device 1Q according to a fifteenth embodiment is different from the heat exchange device 1J according to the ninth embodiment mainly in that a first component covers a through-hole.
As illustrated in
The first component 60Q has a first connecting portion 211, a first hollow portion R21, a projecting portion 212, a main body portion 213, and a resin fixing portion 30Q. The first component 60Q is an injection-molded product. The first connecting portion 211, the first hollow portion R21, the projecting portion 212, the main body portion 213, and the resin fixing portion 30Q are integrated.
The first component 60Q covers the through-hole HA. Specifically, the first component 60Q is disposed on the upper main surface TS11 in a state where the through-hole HA is covered with the first component 60Q so as not to be exposed, and there is no gap between the resin fixing portion 30Q and the upper main surface TS11 of the upper metal member 11A.
As illustrated in
The projecting portion 212 according to the fifteenth embodiment is in contact only with the upper main surface TS11 of the upper metal member 11A.
The resin fixing portion 30Q is fixed to the upper metal member 11A. Specifically, the resin fixing portion 30Q is fixed to the periphery of the through-hole HA of the upper main surface TS11 of the upper metal member 11A and the inner peripheral surface S11 of the through-hole HA.
The periphery of the through-hole HA of the upper main surface TS11 of the upper metal member 11A and the inner peripheral surface S11 of the through-hole HA are subjected to a roughening treatment in the same manner as in the first embodiment.
The heat exchange device 1Q according to the fifteenth embodiment has the same action and effect as those of the heat exchange device 1J according to the ninth embodiment.
A heat exchange device 1R according to a sixteenth embodiment is different from the heat exchange device 1J according to the ninth embodiment mainly in that each of the first connecting portion, the through-hole, and the covering portion has a substantially square shape.
The heat exchange device 1R includes a heat exchange main body portion 10A, a pair of first components 60R, a pair of second components 70J (see
As illustrated in
The first component 60R has a joint member 20R and a resin fixing portion 30R.
As illustrated in
In the sixteenth embodiment, the shape of the projecting portion 212 viewed from above to below is a substantially square ring shape. As illustrated in
The resin fixing portion 30R has a covering portion 223. The covering portion 223 has a first covering portion 2231. As illustrated in
In the sixteenth embodiment, as described above, the radius rIC212 of the inscribed circle IC212 of the projecting portion 212 is the same as the radius r212 described in the ninth embodiment. That is, in the plane orthogonal to the vertical direction, a radius r2231 (see
The heat exchange device 1R according to the sixteenth embodiment has the same action and effect as those of the heat exchange device 1J according to the ninth embodiment.
A heat exchange device 1S according to a seventeenth embodiment is different from the heat exchange device 1J according to the ninth embodiment mainly in that a resin fixing portion has a step portion.
As illustrated in
The first component 60S has a joint member 20S and a resin fixing portion 30S. The joint member 20S does not include the resin fixing portion 30S.
As illustrated in
The resin fixing portion 30S further has a step portion 224. The step portion 224 is located on the first connecting portion 211 side and on the upper side of the covering portion 223. The step portion 224 is formed over the entire periphery of the outer peripheral surface S211 of the first connecting portion 211. The covering portion 223 and the step portion 224 are integrated. That is, the step portion 224 protrudes upward from the covering portion 223 along the outer peripheral surface S211 of the first connecting portion 211. The shape of the step portion 224 viewed from above to below is a ring shape.
In the seventeenth embodiment, a thickness Z2231 (see
Each of the thickness Z2231 (see
The heat exchange device 1S according to the seventeenth embodiment has the same action and effect as those of the heat exchange device 1J according to the ninth embodiment.
A heat exchange device 1T according to an eighteenth embodiment is used to promote heat dissipation of an external heating element. Examples of the heating element include those the same as those exemplified as the heating element according to the first embodiment.
As illustrated in
The second metal plate 82, the partition member 85, the joint member 83, and the first metal plate 81 are disposed in this order. The resin fixing portion 84 is in contact with the peripheral edge portions of the first metal plate 81 and the second metal plate 82 thereby fixing the second metal plate 82 to the first metal plate 81.
The joint member 83 has a pair of coupling portions 831, each of which is coupled to an external supply unit or discharge unit to supply or discharge a cooling medium between the outside and the heat exchange device 1T.
In the eighteenth embodiment, a side on which one coupling portion 831 of the heat exchange device 1T is disposed is defined as a rear side of the heat exchange device 1T, and the opposite side is defined as a front side of the heat exchange device 1T. The right side when the heat exchange device 1T is viewed from the front side is defined as a right side of the heat exchange device 1T, and the opposite side is defined as a left side of the heat exchange device 1T. In the direction orthogonal to the front-rear direction and the left-right direction of the heat exchange device 1T, a side on which the first metal plate 81 is disposed is defined as an upper side of the heat exchange device 1T, and the opposite side is defined as a lower side of the heat exchange device 1T. Note that these orientations do not limit the orientation of the heat exchange device of the disclosure at the time of use.
In
The heat exchange device 1T is of a plate type.
The heat exchange device 1T has an upper main surface TS1. The joint member 83 is disposed on the upper main surface TS1 side of the heat exchange device 1T. As illustrated in
An internal flow path R8 is formed inside the heat exchange device 1T. A cooling medium flows through the internal flow path R1. Examples of the cooling medium include those the same as those exemplified as the cooling medium according to the first embodiment.
The dimensions of the heat exchange device 1T are not particularly limited, and can be selected according to the application or the like of the heat exchange device 1T. For example, the dimension of the heat exchange device 1T may be similar to the dimension exemplified as the dimension of the heat exchange device 1A according to the first embodiment.
The first metal plate 81 is a flat plate-like object. The shape of the first metal plate 81 viewed from above to below is a substantially rectangular shape having a long side in the front-rear direction.
As illustrated in
The through-hole HA penetrates the first metal plate 81 along the vertical direction. The through-hole HA communicates with the internal flow path R8 (see
The material of the first metal plate 81 is a metal, and may be the same as that exemplified as the material of the upper metal member 11A according to the first embodiment.
The second metal plate 82 is a flat plate-like object. The shape of the second metal plate 82 viewed from above to below is a substantially rectangular shape having a long side in the front-rear direction.
The material of the second metal plate 82 is a metal, and may be the same as that exemplified as the material of the upper metal member 11A according to the first embodiment. The material of the second metal plate 82 may be the same as or different from the material of the first metal plate 81.
The joint member 83 is a plate-like object. An external supply unit and an external discharge unit are coupled to the joint member 83. The joint member 83 forms an internal flow path R8 (see
The coupling portion 831 is located on the upper surface side of the joint member 83. As illustrated in
The cooling medium is supplied to the opening H831. The opening H831 is located on the upper surface of the joint member 83. The opening portion H831 faces upward.
As illustrated in
The first metal plate 81 has a lower main surface BS81 (see
As illustrated in
The recessed portion R832 is formed for forming the internal flow path R8 through which the cooling medium flows with second metal plate 82 therebetween.
The second metal plate 82 has an upper main surface TS82 (see
The material of the joint member 83 is a resin, and may be the same as that exemplified as the resin constituting the joint member 20A according to the first embodiment.
The resin fixing portion 84 fixes the second metal plate 82 to the first metal plate 81. That is, the resin fixing portion 84 integrates the first metal plate 81, the second metal plate 82, the joint member 83, and the partition member 85.
As illustrated in
The gap R80 is filled with the resin fixing portion 84. That is, the resin fixing portion 84 is in physical contact with the peripheral edge portion of the lower main surface BS81 of the first metal plate 81, the peripheral edge portion of the upper main surface TS82 of the second metal plate 82, and the side surface of the joint member 83.
Hereinafter, the surface of the first metal plate 81 in contact with the resin fixing portion 84 and the surface of the second metal plate 82 in contact with the resin fixing portion 84 are subjected to a roughening treatment in the same manner as in the first embodiment.
The resin fixing portion 84 is formed by injection molding. The material of the resin fixing portion 84 is a resin having compatibility with the resin constituting the joint member 83. Accordingly, the resin fixing portion 84 and the side surface of the joint member 83 are fused. In the disclosure, “having compatibility” indicates that the resin constituting resin fixing portion 84 is mixed without being separated in an atmosphere where the resin is melted. The main component of the resin constituting the resin fixing portion 84 is preferably the same as the resin constituting the joint member 83.
The partition member 85 partitions the internal flow path R8.
In the eighteenth embodiment, the partition member 85 has a plurality of partition wall portions. As illustrated in
The partition member 85 may be fixed to the second metal plate 82. The fixing method for fixing the partition member 85 to the second metal plate 82 is appropriately selected according to the material of the partition member 85. Examples of the fixing method include a method using a fastening component (hereinafter, referred to as “mechanical fastening”), welding, a method using an insert bonding layer, a method using a known adhesive, welding, and the like, and a plurality of these fixing methods can also be used in combination. The fastening component includes a bolt, a nut, a screw, a rivet, or a pin. The welding includes metal welding or brazing. The welding includes thermal welding, vibration welding, laser welding, ultrasonic welding, and hot plate welding.
The material of the partition member 85 is not particularly limited, and may be a resin or a metal, and may be the same as that exemplified as the material of the joint member 20A or the upper metal member 11A according to the first embodiment. The material of the partition member 85 may be the same as or different from the material of the second metal plate 82 or the joint member 83.
The heat exchange device 1T is installed and used such that, for example, the lower main surface BS1 of the heat exchange device 1T comes into contact with the heating element. At this time, an external supply unit is coupled to one coupling portion 831. An external discharge unit is coupled to the other coupling portion 831. The heat of the heating element is conducted to the cooling medium filled in the internal flow path R8 via at least one of the first metal plate 81 or the second metal plate 82.
The cooling medium is supplied to the opening H831 of the coupling portion 831. The cooling medium supplied to the opening H831 moves to the internal flow path R8 via the hollow portion R831 of the coupling portion 831. Most of the cooling medium moves toward the other coupling portion 831 in the internal flow path R8. At this time, the cooling medium exchanges heat with at least one of the first metal plate 81 or the second metal plate 82. Next, the cooling medium moves to the opening H831 via the hollow portion R831 of the other coupling portion 831, and is discharged to the external discharge unit. In this manner, the cooling medium absorbs heat from the heating element inside the heat exchange device 1T and is discharged to the outside of the heat exchange device 1T. That is, the heat exchange device 1T promotes heat dissipation of the heating element.
As described with reference to
As a result, the internal flow path R8 is formed even when the surrounding wall portion for forming the internal flow path R8 is not processed and molded on at least one of the first metal plate 81 or the second metal plate 82. The heat exchange device 1T can easily improve the degree of freedom in designing the internal flow path R8 by disposing the desired partition member 85 in the internal flow path R8.
As described with reference to
Accordingly, in the eighteenth aspect, the internal flow path R8 can be more freely designed.
As described with reference to
Accordingly, the heat exchange device 1T can more reliably maintain airtightness for a long period of time.
As described with reference to
Accordingly, in the eighteenth aspect, the internal flow path can be formed even when the joint member is not molded into a complicated structure.
As described with reference to
Accordingly, the surfaces of the first metal plate 81 and the second metal plate 82 in contact with the resin fixing portion 84 include fine unevenness. Accordingly, the resin fixing portion 84 is firmly fixed to the first metal plate 81 and the second metal plate 82 by the anchor effect as compared with a case where the roughening treatment is not performed. As a result, the heat exchange device 1T can maintain airtightness for a long period of time.
As described with reference to
Accordingly, the resin fixing portion 84 and the joint member 83 are firmly fixed to each other. As a result, the heat exchange device 1T can maintain airtightness for a longer period of time.
The embodiments of the invention have been described above with reference to the drawings. However, the invention is not limited to the above embodiments, and can be implemented in various aspects without departing from the gist thereof. For easy understanding, the drawings schematically illustrate each constituent element mainly, and the thickness, length, number, and the like of each illustrated constituent element are different from actual ones for convenience of drawing. In addition, the material, shape, dimension, and the like of each constituent element shown in the above embodiment are merely examples, and are not particularly limited, and various modifications can be made without substantially departing from the effects of the invention.
In the first to seventeenth embodiments, the joint member may not have the projecting portion.
In the first to seventeenth embodiments, at least one of the pair of sealing fixing surfaces or the joining fixing surface may not be subjected to the roughening treatment. The method for manufacturing the heat exchange device may not include at least one of the first roughening step or the second roughening step.
In the eighteenth embodiment, the second fixing surface may not be subjected to the roughening treatment.
In the first to seventeenth embodiments, the projecting portion may not have the notch portion.
In the first to seventeenth embodiments, the cross-sectional shape of the notch portion of the projecting portion may be a polygon. Examples of the polygon include a triangle, a quadrangle, a pentagon, a hexagon, and a heptagon. Examples of the triangle include an equilateral triangle, a right triangle, and an isosceles triangle. Examples of the quadrangle include a square, a rectangle, a parallelogram, and a trapezoid.
In the first to seventeenth embodiments, the resin sealing portion and the resin joint portion may be formed by transfer molding, compression molding, or cast molding. The resin joint portion may be an adhesive layer made of an adhesive.
In the eighteenth embodiment, the resin fixing portion may be formed by transfer molding, compression molding, or cast molding. The resin fixing portion may be an adhesive layer made of an adhesive.
In the first to eighteenth embodiments, a heating medium may be used as the heat exchange medium. Examples of the heating medium include a heating liquid and a heating gas. Examples of the heating liquid include water and oil. Examples of the heating gas include air and water vapor. The temperature of the heating medium is appropriately adjusted according to the type or the like of the heating element. When a heating medium is used as the heat exchange medium, the heat exchange device promotes heat storage of the external heating element.
In the first to seventeenth embodiments, the shape of the heat exchange device may be a double pipe type. Examples of the double pipe type include a coil shape and a U-tube shape. When the shape of the heat exchange device is a double pipe type, the shapes of the upper metal member and the lower metal member are appropriately adjusted according to the shape of the heat exchange device.
In the first to seventeenth embodiments, the heat exchange device may include two or more of one joint members and one resin sealing portions (hereinafter, referred to as a “supply member”), or may include two or more of the other joint members and the other resin sealing portions (hereinafter, referred to as a “discharge member”).
In the eighteenth embodiment, the heat exchange device may include two or more of one through-holes and one coupling portions, or may include two or more of the other through-holes and the other coupling portions.
In the first to seventeenth embodiments, at least one of the supply member or the discharge member may be disposed on the side surface of the heat exchange device. One of the supply member and the discharge member may be disposed on the upper main surface side of the heat exchange device, and the other of the supply member and the discharge member may be disposed on the lower main surface side of the heat exchange device.
In the first to seventeenth embodiments, the heat exchange main body portion may not have the resin joint portion. When the heat exchange main body portion does not have the resin joint portion, for example, the upper metal member and the lower metal member may be joined by welding, brazing, or an adhesive. The heat exchange main body portion may have a metal member constituting the heat exchange main body portion in addition to the upper metal member and the lower metal member.
In the first to seventeenth embodiments, the material of the resin joint portion and the material of the resin sealing portion need not be the same.
In the first to eighteenth embodiments, the shape of each through-hole viewed from above to below need not be a circular shape or a substantially square shape. The shape of the through-hole may be a polygon (except for a substantially square shape). The shape of each of the pair of through-holes need not be the same.
In the first to seventeenth embodiments, the shape of the resin sealing portion viewed from above to below need not be a ring shape or a substantially square ring shape. For example, the shape of the resin sealing portion may be a polygonal ring shape (except for a substantially square ring shape). The shape of each of the pair of resin sealing portions need not be the same.
In the first to eighth embodiments, the shape of each of the protruding portion and the projecting portion viewed from above to below need not be a circular shape or a substantially square shape.
For example, the shape of each of the protruding portion and the projecting portion may be a polygon (except for a substantially square shape). The shape of each of the pair of protruding portions need not be the same. When the shape of the protruding portion is a polygon (except for a substantially square shape) and does not have a step surface, the radius of the inscribed circle of the protruding portion may be the same as the radius r22 (see
In the first to eighth embodiments (except for the sixth embodiment), as shown in
In the first to eighth embodiments (except for the sixth embodiment), the depth H221 of the notch portion 221 may be higher than half the height H22 (see
In the first to eighth embodiments, the number of notch portions of the projecting portion is not particularly limited, and may be seven or more, for example, twelve. Accordingly, the pressure loss of the cooling medium flowing through the internal flow path can be reduced as compared with the first embodiment, and the cooling medium can be caused to flow through the internal flow path more efficiently.
In the first to eighth embodiments, the material of the joint member may be a metal. The type of the metal constituting the joint member may be the same as that exemplified as the material of the upper metal member 11A, and may be the same as or different from the material of the upper metal member 11A. Accordingly, the joint member is less likely to be damaged than in a case of a resin, and airtightness can be maintained for a longer period of time.
A surface of the outer peripheral surface of the protruding portion, which is in contact with the resin sealing portion, is subjected to a roughening treatment in the same manner as the upper metal member, and includes fine unevenness.
Accordingly, the resin sealing portion is firmly fixed to the protruding portion by the anchor effect as compared with a case where the roughening treatment is not performed, and airtightness can be maintained for a longer period of time.
In the ninth to seventeenth embodiments, the shapes of the first connecting portion and the projecting portion viewed from above to below need not be circular or substantially square.
For example, the shape of each of the first connecting portion and the projecting portion may be a polygon (except for a substantially square shape). The shape of each of the pair of first connecting portions need not be the same. When the shape of the first connecting portion is a polygon (except for a substantially square shape), the radius of the inscribed circle of the first connecting portion may be the same as the radius r211B (see
In the first to seventeenth embodiments, the resin sealing portion and the resin joint portion may be formed in different steps in the sealing step.
In the first to eighth embodiments, the joint member need not be one of a resin molded body and a metal molded body. For example, when the outer peripheral surface of the protruding portion is made of a resin, the inside of the joint member may be a metal. When the outer peripheral surface of the protruding portion is made of a metal, the inside of the joint member may be a resin.
In the ninth to seventeenth embodiments, as long as the outer peripheral surface of the first connecting portion is made of a resin or a metal, the inside of the joint member may be made of a resin or a metal.
In the fourth embodiment and the thirteenth embodiment, the resin sealing portion may not have the filling portion. When the resin sealing portion does not have a filling portion, a gap between the projecting portion and the lower main surface of the upper metal member may be filled with an adhesive. The adhesive bonds the projecting portion and the upper metal member. Examples of the material of the adhesive include an epoxy resin, a silicone resin, an acrylic resin, and a urethane resin.
In the fifth embodiment and the fourteenth embodiment, the first covering portion and the second covering portion may not be integrated. The material of the first covering portion and the material of the second covering portion may be different from each other.
In the third embodiment and the ninth to seventeenth embodiments, the heat exchange device may not include the O-ring.
In the third embodiment and the ninth to seventeenth embodiments, the heat exchange device may include a packing different from the O-ring. Examples of the packing include a lip packing, a squeeze packing, an oil seal, a cushion seal, a dust seal, and a C-ring.
In the third embodiment and the ninth to seventeenth embodiments, the second component may not have the lid portion as long as the second component is connected to the first component.
In the eighteenth embodiment, the material of each of the joint member and the partition member may be a metal.
In the ninth to seventeenth embodiments, the material of the joint member may be a metal. The type of the metal can be selected according to the application or the like of the heat exchange device. The material of the joint member may be the same as or different from the material of the upper metal member.
The surface of the outer peripheral surface of the first connecting portion, which is in contact with the resin fixing portion, is subjected to a roughening treatment in the same manner as in the first embodiment, that is, includes fine unevenness on the contact surface. Therefore, by the anchor effect, the resin fixing portion is more firmly fixed to the first connecting portion than when the roughening treatment is not performed, and the airtightness can be maintained for a longer period of time.
In the eighteenth embodiment, the partition wall portion of the partition member 85 is a long plate-like object, but is not particularly limited as long as the partition member 85 can partition the internal flow path R8, and need not be a long plate-like object.
The disclosure of Japanese Patent Application No. 2020-120925 filed on Jul. 14, 2020 and the disclosure of Japanese Patent Application No. 2020-120926 filed on Jul. 14, 2020 are incorporated herein by reference in their entirety.
All documents, patent applications, and technical standards described in this specification are incorporated herein by reference to the same extent as if each document, patent application, and technical standard were specifically and individually indicated to be incorporated by reference.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2020-120925 | Jul 2020 | JP | national |
| 2020-120926 | Jul 2020 | JP | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2021/026321 | 7/13/2021 | WO |
