Patent Application
20100294458
The present invention relates to a heat exchange device and a device for a receiving heat generation body using the same.
In recent years, with the development of telecommunication networks, the number of cellular phones has increased dramatically compared to the number of fixed-line phones, and a number of base stations of cellular phones have been installed accordingly. From a certain perspective, the base stations of cellular phones may be regarded as extremely large heat generation bodies or sources from the viewpoint of the fact that they consume power, because an electric current of several tens of amperes or higher, for example, flows therethrough. In a cellular phone base station which serves as such a heat generation body, since many electronic devices are installed in the base station, there is a problem in that the operating temperature of the electronic devices rises due to heat generated from the base station itself, thus disturbing stable operation.
To solve such a problem, it is very important to cool down the base station serving as a heat generation body in order to ensure the long-term stable operation of the many electronic devices in the base station. In the related art, such a cellular phone base station has a configuration as described below so as to achieve cooling of the base station itself.
That is to say, a device for receiving a heat generation body as a cellular phone base station is configured to include a cabinet that receives electronic devices such as a transmitter or a receiver serving as a heat generation body and a heat exchange device mounted on an opening of the cabinet. The heat exchange device has a structure as described below, for example.
That is to say, the heat exchange device is configured to include a body case having a first intake port and a first discharge port for outside air and a second intake port and a second discharge port for air inside the cabinet, a blast fan, and a heat exchanger. Here, the blast fan is configured to include a first blast fan for outside air and a second blast fan for air inside the cabinet which are provided in the body case. Moreover, the heat exchanger performs heat exchange between the outside air and the air inside the cabinet in the body case.
The heat exchanger has a structure, for example, in which a second plate member is stacked on the surface of a first plate member with a predetermined gap therebetween, and a third plate member is stacked on the surface of the second plate member with a predetermined gap therebetween. A plurality of first rectification walls that partitions the surface of the first plate member into a lane shape is provided on the surface of the first plate member opposing the second plate member. Moreover, a plurality of second rectification walls that partitions the surface of the second plate member into a lane shape is provided on the surface of the second plate member opposing the third plate member.
As prior art citation information related to the invention of this application, Patent Citation 1 is known, for example.
In the heat exchanger of the conventional heat exchange device described above, rectification walls are provided on the surface of the first plate member and the second plate member, for example. In this way, the outside air and the air inside the cabinet can flow smoothly and uniformly over the large surfaces of the first plate member and the second plate member, thus increasing the heat exchange efficiency of the heat exchanger.
When producing such a heat exchanger, the first plate member and the second plate member can be formed relatively easily by integral molding. For example, the use of synthetic resin or the like enables forming the rectification walls at once. Therefore, it can be said that the heat exchanger can be produced with extremely high productivity.
However, in many cases, since the cellular phone base station is installed outdoors, if the outside air temperature is high, the internal temperature of the cabinet will rise too high. When the internal temperature rises to such a high temperature, in the heat exchanger made from synthetic resin or the like, the first plate member and the second plate member will thermally expand because they are made from synthetic resin. As a result, the expanded walls of these plate members may sag between the rectification walls. Thus, there is a problem in that the flow of air is not rectified smoothly, the air-flow resistance increases, and the heat exchange efficiency decreases.
Patent Citation 1: JP-A-10-170176
The present invention solves the above-mentioned problems and provides a heat exchange device capable of stably operating with high heat exchange efficiency and high mass-productivity.
A heat exchange device of the present invention includes a body case having a first intake port and a first discharge port for a first environment, and a second intake port and a second discharge port for a second environment; a first blast fan for the first environment and a second blast fan for the second environment which are provided in the body case; and a heat exchanger that performs heat exchange between air of the first environment and air of the second environment in the body case. The heat exchanger has a structure in which a second synthetic resin-made plate member is stacked on the surface of a first synthetic resin-made plate member with a predetermined gap therebetween, and a third synthetic resin-made plate member is stacked on the surface of the second plate member with a predetermined gap therebetween. A plurality of first rectification walls that partitions the surface of the first plate member into a lane shape is formed on the surface of the first plate member to confront the second plate member, a plurality of second rectification walls that partitions the surface of the second plate member into a lane shape is formed on the surface of the second plate member to confront the third plate member, and a plurality of third rectification walls that partitions the surface of the third plate member into a lane shape is formed on the surface of the third plate member opposite to the second plate member. First protrusions are provided on parts of the first rectification walls of the first plate member so as to protrude into first recessed portions which are formed on the second rectification walls, confronting the first plate member, of the second plate member, and second protrusions are provided on parts of the second rectification walls of the second plate member so as to protrude into second recessed portions which are formed on the third rectification walls, confronting the second plate member, of the third plate member.
With such a configuration, it is possible to decrease air-flow resistance and to thus achieve smooth rectification of the flow of air. Therefore, it is possible to realize a heat exchange device capable of operating stably with high heat exchange efficiency and high mass-productivity.
That is to say, in the heat exchange device of the present invention, the plurality of first rectification walls partitioning the surface of the first plate member into a lane shape and the plurality of second rectification walls partitioning the surface of the second plate member into a lane shape are provided, respectively. In this way, it is possible to form a uniform flow of air over approximately the entire surface of the first plate member and the second plate member by the first rectification walls and the second rectification walls and to thus perform smooth rectification of the flow of air.
Furthermore, in the portion where the uniform flow of air is formed, the first protrusions are provided in a part of the first rectification walls of the first plate member so as to protrude into the first recessed portions on the side of the first plate member, and the second protrusions are provided in a part of the second rectification walls of the second plate member so as to protrude into the second recessed portions on the side of the second plate member. In this way, even when a temperature rise such as increased air temperature occurs, the first plate member, the second plate member, and the third plate member are prevented from being greatly deformed in the direction towards their adjacent plate member, whereby the air-flow path on the surfaces of the plate members is prevented from being narrowed or blocked. As a result, it is possible to achieve smooth rectification of the flow of air, decrease the air-flow resistance, and improve the heat exchange efficiency. Therefore, it is possible to realize a heat exchange device capable of operating stably with high heat exchange efficiency.
Moreover, a heat exchange device of the present invention includes a body case having a first intake port and a first discharge port for a first environment, and a second intake port and a second discharge port for a second environment; a first blast fan for the first environment and a second blast fan for the second environment which are provided in the body case; and a heat exchanger that performs heat exchange between air of the first environment and air of the second environment in the body case. The heat exchanger has a structure in which a second synthetic resin-made plate member is stacked on the surface of a first synthetic resin-made plate member with a predetermined gap therebetween, and a third synthetic resin-made plate member is stacked on the surface of the second plate member with a predetermined gap therebetween. A plurality of first rectification walls that partitions the surface of the first plate member into a lane shape is formed on the surface of the first plate member to confront the second plate member, and a plurality of second rectification walls that partitions the surface of the second plate member into a lane shape is formed on the surface of the second plate member to confront the third plate member. First protrusions are provided between the first plurality of rectification walls on the surface, confronting the second plate member, of the first plate member so as to protrude towards the second plate member, and second protrusions are provided between the second plurality of rectification walls on the surface, confronting the third plate member, of the second plate member so as to protrude towards the third plate member.
With such a configuration, it is possible to decrease air-flow resistance and to thus achieve smooth rectification of the flow of air. Therefore, it is possible to realize a heat exchange device capable of operating stably with high heat exchange efficiency and high mass-productivity.
That is to say, in the heat exchange device of the present invention, the plurality of first rectification walls that partitions the surface of the first plate member into a lane shape and the plurality of second rectification walls that partitions the surface of the second plate member into a lane shape are provided. Moreover, the first protrusions are provided between the first plural rectification walls so as to protrude towards the second plate member, and the second protrusions are provided between the second plurality of rectification walls so as to protrude towards the third plate member.
In this way, it is possible to form a uniform flow of air over approximately the entire surface of the first plate member and the second plate member by the first rectification walls and the second rectification walls. Moreover, since the first protrusions and the second protrusions are provided in the portion where the uniform flow of air is formed, even when a situation such as increased air temperature occurs, the air-flow path is prevented from being narrowed or blocked. As a result, it is possible to achieve smooth rectification of the flow of air, decrease the air-flow resistance, and improve the heat exchange efficiency. Therefore, it is possible to realize a heat exchange device capable of operating stably with high heat exchange efficiency.
Moreover, a device for accommodating a heat generation body of the present invention includes a cabinet for accommodating a heat generation body and the above-mentioned heat exchange device mounted to an opening of the cabinet.
With such a configuration, it is possible to realize a device for accommodating a heat generation body, accommodating a heat exchange device which is capable of operating stably with high heat exchange efficiency.
Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings. In the drawings below, the same elements are denoted by the same reference numerals, and description thereof may sometimes be omitted.
As shown in
As shown in
As shown in
The top surface (in
The outside air from the outside of cabinet 4 is drawn from inlet port 20, which is provided on the lower surface in
Although such a ventilation will be described in further detail later, heat exchanger 14 performs heat exchange between the outside air and the inside air of cabinet 4, thus cooling down transceiver 5 using the outside air.
That is to say, since electric current of several tens of amperes or more flows through transceiver 5, transceiver 5 generates heat by consuming this electric current and the temperature thereof will rise accordingly. When such a temperature rise resulting from the heat generated from transceiver 5 itself is left as it is, the characteristics of the electronic equipment or the like provided in transceiver 5 may become unstable. Therefore, as described above, Embodiment 1 has a structure in which heat exchanger 14 performs heat exchange between the outside air and the air flowing inside cabinet 4 to cool down the inside air, thus cooling down and suppressing heat generation of transceiver 5, and preventing the operation of transceiver 5 from becoming unstable.
Heat exchanger 14 described above is obtained by sequentially stacking second rectangular synthetic resin-made plate member 16 on the surface of first rectangular synthetic resin-made plate member 15 and third synthetic resin-made plate member 17 on the surface of second plate member 16 as shown in
More specifically, a plurality of first rectification walls 22 that partitions the surface of first plate member 15 into a lane shape is provided on the surface of first plate member 15 to confront the second plate member 16. Moreover, a plurality of second rectification walls 23 that partitions the surface of second plate member 16 into a lane shape is provided on the surface of second plate member 16 to confront the third plate member 17. Furthermore, third rectification walls 24 that protrude towards a side opposite to second plate member 16 are provided on the surface of third plate member 17.
As understood from the structures shown in
Moreover, second plate member 16 has second rectification walls 23 which extend in a straight line from the other end 16b (the upper end) towards one end thereof 16a (the lower end). Second rectification walls 23 have a curved shape that is curved in front of one end 16a towards second long side 16c which is on the right side in
Furthermore, subsequently, although third plate member and fourth plate member 17a are similarly stacked alternately, description thereof will be provided briefly in order to avoid redundant description. It should be noted that third plate member 17 may be the same as that used as first plate member 15, and fourth plate member 17a stacked subsequently on third plate member 17 may be the same as that used as second plate member 16.
In addition, as shown in
That is to say, when first rectification walls 22 or second rectification walls 23 are formed in first curved portion 28 or second curved portion 29 of first plate member 15 or second plate member 16 with the same density as on first long side 15c or second long side 16c, the air-flow path will be curved and the air-flow resistance will increase.
In order to prevent this, in first curved portion 28, the gap, namely the distance, between the adjacent ones of first rectification walls 22 is set to be larger than that in the straight-line portion of first rectification wall 22.
Moreover, in second curved portion 29, the gap, namely the distance, between the adjacent ones of second rectification walls 23 is set to be larger than that in the straight-line portion of second rectification walls 23.
When observing second curved portion 29 of second plate member 16, first rectification walls 22 and third rectification walls 24 which are perpendicular to second curved portion 29 are formed on portions of first plate member 15 and third plate member 17 disposed adjacent to second curved portion 29. Therefore, even when the gap between the adjacent ones of second rectification walls 23 in second curved portion 29 is increased, the adjacent wall surfaces of first plate member 15 or third plate member 17 will not protrude due to thermal expansion.
However, in Embodiment 1, a curved face which is substantially perpendicular to the straight-line portion of second rectification walls 23 is formed on a portion of first plate member 15 corresponding to first curved portion 28. Moreover, a curved face which is substantially perpendicular to the straight-line portions of first rectification walls 22 and third rectification walls 24 is formed on a portion of second plate member 16 corresponding to second curved portion 29. Although these curved faces are not shown in the drawings to avoid complication, first plate member 15 itself corresponding to first curved portion 28 and second plate member 16 itself corresponding to second curved portion 29 are curved into a gently protruding circular-arc shape, that is, a so-called barrel shape.
According to the configuration described above, the air heated by transceiver 5 in cabinet 4 is pulled into second blast fan 13 from second intake port 9 of heat exchange device 6 in the direction indicated by the arrow in
On the other hand, as indicated by the broken-line arrow in
The outside air passing between first plate member 15 and second plate member 16 and the air inside cabinet 4 passing between second plate member 16 and third plate member 17 are uniformly dispersed over approximately the entire surfaces of plate members 15, 16, and 17 by first rectification walls 22 or second rectification walls 23 which are provided on first plate member 15 or second plate member 16. With such a configuration, heat exchange between the outside air and the air inside cabinet 4 can be realized by the entire surface area of plate members 15, 16, and 17.
However, during this heat exchange, if the outside air temperature is extremely high, for example, the internal temperature of cabinet 4 will rise too high, and as a consequence, plate members 15, 16, and 17 will be thermally expanded. Thus, portions sandwiched between first rectification walls 22 or portions sandwiched between second rectification walls 23 may protrude into either one of plate members 15, 16, and 17 adjacent thereto. Therefore, there is a concern in that the air-flow path is narrowed or blocked.
Therefore, as described above, in Embodiment 1, as shown in
Moreover, second protrusions 27 are provided on parts of second rectification walls 23 of second plate member 16 so as to protrude into second recessed portions 25a, which are formed on the lower surface side of third plate member 17 close to second plate member 16 when third rectification walls 24 are formed in third plate member 17, and to make abutting contact with the inner top surfaces of second recessed portions 25a close to second plate member 16.
For this reason, even when such a high temperature state as described above occurs and thus at least any one of plate members 15, 16, and 17 is thermally expanded, first protrusions 26 of first plate member 15 supports second plate member 16 disposed on an upper side thereof by making abutting contact with first recessed portions 25 of second plate member 16 close to first plate member 15. Moreover, second protrusions 27 of second plate member 16 supports third plate member 17 disposed on an upper side thereof by making abutting contact with second recessed portions 25a of third plate member 17 close to second plate member 16. In this way, the portions sandwiched between first rectification walls 22 or the portions sandwiched between second rectification walls 23 are prevented from protruding into plate members 15, 16, and 17 adjacent thereto, thus preventing the air-flow path from being narrowed or blocked. Therefore, it is possible to realize a heat exchange device capable of operating while maintaining high heat exchange efficiency.
Differently from the heat exchanger described with reference to
That is to say, in the first curved portion of first rectification wall 22 of first plate member 15 shown in
That is to say, a flow of air that takes a shortcut between inlet port 18 of heat exchanger 14 shown in
Therefore, in Embodiment 1 shown in
Moreover, second sealing protrusions 30a are provided in portions of the straight-line portion of second rectification walls 23 of second plate member 16 being perpendicular to second curved portion 29 (not shown) of third rectification walls 24 of third plate member 17 adjacent to the straight-line portion so as to protrude into second recessed portions 25a which are formed on third plate member 17 close to second plate member 16 when third rectification walls 24 are formed on third plate member 17.
As shown in
For this reason, as understood from
Moreover, similarly, a state is achieved where third recessed portions 25b which are formed in portions of the curved portion of third rectification walls 24 of third plate member 17 close to second plate member 16 become caps at second sealing protrusions 30a.
For this reason, it is possible to prevent formation of a shortcut in the flow of air appearing in the direction indicated by the arrows in
The still another embodiment shown in
To achieve this, as shown in
In Embodiment 1, in portions where the straight-line portion of first rectification walls 22 of first plate member 15 overlaps vertically with first recessed portions 25 of second plate member 16 close to the first plate member, gaps are formed between first rectification walls 22 and first recessed portions 25 on the side the first plate member, and thus, a shortcut in the flow of air can occur easily. However, by increasing the size of first protrusions 26 as much as possible, it is possible to block the gaps between first rectification walls 22 and first recessed portions 25 on the side of the first plate member, thus preventing formation of a shortcut in the flow of air and improving the heat exchange efficiency of heat exchanger 14.
Moreover, although not shown in the drawings, in portions where the straight-line portion of first rectification walls 22 overlaps vertically with the straight-line portion of second rectification walls 23, first rectification walls 22 enter into first recessed portions 25 on the side of first plate member 15, and second rectification walls 23 enter into second recessed portions 25a on the side of second plate member 16. In this way, it is possible to eliminate the gaps between first rectification walls 22 and second plate member 16 and the gaps between second rectification walls 23 and third plate member 17, thus preventing formation of a shortcut in the flow of air and improving the heat exchange efficiency of heat exchanger 14.
That is to say, the heat exchange device of the present invention includes a body case having a first intake port and a first discharge port for a first environment and a second intake port and a second discharge port for a second environment; a first blast fan for the first environment and a second blast fan for the second environment which are provided in the body case; and a heat exchanger that performs heat exchange between air of the first environment and air of the second environment in the body case. The heat exchanger has a structure in which a second synthetic resin-made plate member is stacked on the surface of a first synthetic resin-made plate member with a predetermined gap therebetween, and a third synthetic resin-made plate member is stacked on the surface of the second plate member with a predetermined gap therebetween. A plurality of first rectification walls that partitions the surface of the first plate member into a lane shape is formed on the surface, confronting the second plate member, of the first plate member, a plurality of second rectification walls that partitions the surface of the second plate member into a lane shape is formed on the surface, confronting the second plate member, of the second plate member, and a plurality of third rectification walls that partitions the surface of the third plate member into a lane shape is formed on the surface, opposite to the second plate member, of the third plate member. First protrusions are provided on parts of the first rectification walls of the first plate member so as to protrude into first recessed portions which are formed on the second rectification walls, confronting the first plate member, of the second plate member, and second protrusions are provided on parts of the second rectification walls of the second plate member so as to protrude into second recessed portions which are formed on the third rectification walls, confronting the second plate member, of the third plate member.
With such a configuration, it is possible to decrease air-flow resistance and to thus achieve smooth rectification of the flow of air. Therefore, it is possible to realize a heat exchange device capable of operating stably with high heat exchange efficiency and high mass-productivity.
That is to say, in the heat exchange device of the present invention, the plurality of first rectification walls partitioning the surface of the first plate member into a lane shape and the plurality of second rectification walls partitioning the surface of the second plate member into a lane shape are provided, respectively. In this way, it is possible to form a uniform flow of air over approximately the entire surface of the first plate member and the second plate member by the first rectification walls and the second rectification walls and to thus perform smooth rectification of the flow of air.
Furthermore, in the portion where the uniform flow of air is formed, the first protrusions are provided in parts of the first rectification walls of the first plate member so as to protrude into the first recessed portions on the first plate member, and the second protrusions are provided in parts of the second rectification walls of the second plate member so as to protrude into the second recessed portions on the second plate member. In this way, even when a temperature rise such as increased air temperature occurs, the first plate member, the second plate member, and the third plate member are prevented from being greatly deformed in the direction towards their adjacent plate member, whereby the air-flow path on the surfaces of the plate members is prevented from being narrowed or blocked. As a result, it is possible to achieve smooth rectification of the flow of air, decrease the air-flow resistance, and improve the heat exchange efficiency. Therefore, it is possible to realize a heat exchange device capable of operating stably with high heat exchange efficiency.
Even if the external state is changed and thus a situation such as increased air temperature occurs, according to the heat exchange device of the present invention, the first plate member, the second plate member, and the third plate member are prevented from being greatly deformed in the direction towards their adjacent plate member, whereby the air-flow path on the surfaces of the plate members is prevented from being narrowed or blocked. As a result, it is possible to improve the heat exchange efficiency.
Moreover, in the protrusions provided in parts of the rectification walls, the first protrusions protrude into the first recessed portions on the second plate member, and the second protrusions protrude into the second recessed portions on the side of the third plate member, whereby the stacking position of the first plate member relative to the second plate member and the stacking position of the second plate member relative to the third plate member are determined. In addition, since the protrusions secure the gap between the respective plate members, it is possible to obtain an advantage that the air-flow path in the heat exchanger is prevented from being narrowed or blocked.
Moreover, by using the heat exchange device described in Embodiment 1, it is possible to form a device for accommodating a heat generation body which includes the heat exchange device and a cabinet for accommodating the heat generation body as shown in
With such a configuration, it is possible to realize a device for accommodating a heat generation body, accommodating a heat exchange device which is capable of operating stably with high heat exchange efficiency. Since the heat exchange efficiency is high, it is possible to achieve further miniaturization than that of the conventional one. Thus, it is possible to obtain an advantage that the selection range of places where it is to be installed in a building or the like can be broadened.
Similar to Embodiment 1,
Description of
As shown in
The top surface (in
The outside air from the outside of cabinet 4 is drawn from inlet port 120, which is provided on the lower surface in
Although such a ventilation of the outside air will be described in further detail later, heat exchanger 114 performs cooling of transceiver 5 shown in
Heat exchanger 114 described above is obtained by stacking second rectangular synthetic resin-made plate member 116 on the surface of first rectangular synthetic resin-made plate member 115 and third synthetic resin-made plate member 117 on the surface of second plate member 116 as shown in
More specifically, a plurality of first rectification walls 122 that partitions the surface of first plate member 115 into a lane shape is provided on the surface of first plate member 115 close to second plate member 116. Moreover, a plurality of second rectification walls 123 that partitions the surface of second plate member 116 into a lane shape is provided on the surface of second plate member 116 close to third plate member 117. Furthermore, third plate member 117 is provided with rectification walls for a plate member on the right side in
As shown in
Plate members 115, 116, and 117 have a vertically rectangular shape, and first plate member 115 has first rectification walls 122 which extend from a first end thereof 115a (the lower end) towards a second end 115b (the upper end). Moreover, first rectification walls 122 have a curved shape that is curved in front of the upper end towards first long side 115c which is on the left side in
Moreover, second plate member 116 has second rectification walls 123 which extend from a second end 116b (the upper end) towards a first end thereof 116a (the lower end). Second rectification walls 123 have a curved shape that is curved in front of the lower end towards second long side 116c which is on the right side in
Furthermore, subsequently, although third plate member 117 and fourth plate member 117a are similarly stacked alternately, description thereof will be provided briefly in order to avoid redundant description. It should be noted that third plate member 117 may be the same as that used as first plate member 115, and fourth plate member 117a stacked subsequently on third plate member 117 may be the same as that used as second plate member 116.
In addition, as shown in
According to the configuration described above, the air heated by transceiver 5 in cabinet 4 (
On the other hand, as shown in
The outside air passing between first plate member 115 and second plate member 116 and the air inside cabinet 4 passing between second plate member 116 and third plate member 117 are uniformly dispersed over approximately the entire surfaces of plate members 115, 116, and 117 by first rectification walls 122 and second rectification walls 123, respectively, which are provided on first plate member 115 and second plate member 116. Therefore, the heat exchange device of Embodiment 2 is able to perform heat exchange between the outside air and the air inside the cabinet by using a large area and to thus operate stably with high heat exchange efficiency.
However, during this heat exchange, if the outside air temperature is extremely high, for example, there is a case where the internal temperature of cabinet 4 may rise too high. In such a case, plate members 115, 116, and 117 may be thermally expanded as a result of the temperature rise, and portions sandwiched between first rectification walls 122 or portions sandwiched between second rectification walls 123 may protrude into plate members 115, 116, and 117 adjacent thereto. Therefore, there is a concern in that the air-flow path is narrowed or blocked.
However, as described above, in Embodiment 2, first protrusions 124 or second protrusions 125 are provided on the portions sandwiched between first rectification walls 122 or portions sandwiched between second rectification walls 123. Therefore, even when such a high temperature state as described above occurs, the portions sandwiched between first rectification walls 122 or the portions sandwiched between second rectification walls 123 protrude into plate members 115, 116, and 117 adjacent thereto. In this way, it is possible to prevent the air-flow path from being narrowed or blocked and to maintain high heat exchange efficiency.
As described above, as shown in
As understood when observing the non-formation portion of second plate member 116, first protrusions 124 are formed on portions of first plate member 115 disposed adjacent to this non-formation portion and portions of third plate member 117 opposing this non-formation portion. Therefore, even if second protrusions 125 are not provided on the non-formation portion of second plate member 116, the adjacent wall surfaces will not protrude due to thermal expansion. However, in order to prevent or alleviate the protruding of the wall surfaces further, it may be preferable to provide curved surface 128 on this non-formation portion as described above.
That is to say, the heat exchange device of the present invention includes a body case having a first intake port and a first discharge port for a first environment, and a second intake port and a second discharge port for a second environment; a first blast fan for the first environment and a second blast fan for the second environment which are provided in the body case; and a heat exchanger that performs heat exchange between air of the first environment and air of the second environment in the body case. The heat exchanger has a structure in which a second synthetic resin-made plate member is stacked on the surface of a first synthetic resin-made plate member with a predetermined gap therebetween, and a third synthetic resin-made plate member is stacked on the surface of the second plate member with a predetermined gap therebetween. A plurality of first rectification walls that partitions the surface of the first plate member into a lane shape is formed on the surface, confronting the second plate member, of the first plate member, and a plurality of second rectification walls that partitions the surface of the second plate member into a lane shape is formed on the surface, confronting the second plate member, of the second plate member. First protrusions are provided between the first plurality of rectification walls on the surface, confronting the second plate member, of the first plate member so as to protrude towards the second plate member, and second protrusions are provided between the second plurality of rectification walls on the surface, confronting the second plate member, of the second plate member so as to protrude towards the third plate member.
With such a configuration, it is possible to decrease air-flow resistance and to thus achieve smooth rectification of the flow of air. Therefore, it is possible to realize a heat exchange device capable of operating stably with high heat exchange efficiency and high mass-productivity.
That is to say, in the heat exchange device of the present invention, the plurality of first rectification walls that partitions the surface of the first plate member into a lane shape and the plurality of second rectification walls that partitions the surface of the second plate member into a lane shape are provided. Moreover, the first protrusions are provided between the first plural rectification walls so as to protrude towards the second plate member, and the second protrusions are provided between the second plural rectification walls so as to protrude towards the third plate member.
In this way, it is possible to form a uniform flow of air over approximately the entire surface of the first plate member and the second plate member by the first rectification walls and the second rectification walls. Moreover, since the first protrusions and the second protrusions are provided in the portion where the uniform flow of air is formed, even when a situation such as increased air temperature occurs, the air-flow path is prevented from being narrowed or blocked. As a result, it is possible to achieve smooth rectification of the flow of air, decrease the air-flow resistance, and improve the heat exchange efficiency. Therefore, it is possible to realize a heat exchange device capable of operating stably with high heat exchange efficiency.
Moreover, by using the heat exchange device described in Embodiment 2, it is possible to form a device for accommodating a heat generation body which includes the heat exchange device and a cabinet for accommodating the heat generation body as shown in
With such a configuration, it is possible to realize a device for accommodating a heat generation body, accommodating a heat exchange device which is capable of operating stably with high heat exchange efficiency. Since the heat exchange efficiency is high, it is possible to achieve further miniaturization than in a conventional heat exchange device. Thus, it is possible to obtain an advantage that the selection range of places where it may be installed in a building or the like can be broadened.
The heat exchange device of the present invention can operate stably with high heat exchange efficiency and high mass-productivity. Therefore, the heat exchange device can be extremely useful as a cooling device used in facilities of a base station of communication devices including cellular phones and other outdoor facilities.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2007-324357 | Dec 2007 | JP | national |
| 2008-008876 | Jan 2008 | JP | national |
| 2008-289549 | Nov 2008 | JP | national |
| Filing Document | Filing Date | Country | Kind | 371c Date |
|---|---|---|---|---|
| PCT/JP2008/003781 | 12/16/2008 | WO | 00 | 6/15/2010 |
