Patent Grant
9470424
This application claims priority from Japanese Patent Application No. 2012-250858 filed on Nov. 15, 2012, the entire contents of which are incorporated herein by reference.
Aspects of the present invention relate to an outdoor unit for an air conditioner, and more particularly, to a drainage structure of drain water.
An outdoor unit for an air conditioner includes a housing of a substantially rectangular parallelepiped shape. A compressor, an outdoor heat exchanger (hereinafter referred to as a heat exchanger), and a fan are installed in the housing. A partition is interposed between a section provided with the compressor and a section provided with the heat exchanger and the fan. The heat exchanger is disposed in a substantially L-shape along a lateral side of the housing. A bottom plate forming a bottom portion of the housing is provided with a drainage hole penetrating the bottom plate, so that water collected in the housing is discharged from the drainage hole. For this reason, the drainage hole is located at the lowest position of the bottom plate. The bottom plate of the section provided with the heat exchanger and the fan has a drainage conduit connected to the drainage hole, so that the water in the housing is guided by the drainage groove to flow to the drainage hole. Further, loading shelves having a predetermined height from the position of the drainage hole in its vertical direction protrude inwardly from the lateral face of the housing at plural portions, and the heat exchanger is placed on the loading shelves. For this reason, lower ends of the heat exchanger are positioned at a position higher than the drainage conduit. In this way, the water collected in the outdoor unit is discharged outwardly from the outdoor unit, and the lower ends of the heat exchanger and the fan are not submerged in the water flowing along the drainage conduit.
The heat exchanger of the outdoor unit for the air conditioner is, for example, a fin-tube heat exchanger including thin plate-like fins made of aluminum and arranged horizontally, and heat exchange tubes penetrating the fins, in which when refrigerant flowing in the heat exchanger tubes is heat-exchanged with external air from the fan, a contact area between the heat exchanger tubes and the air is increased by the fins to improve a heat exchange efficiency.
At a heating operation to heat an inside of a room, the cold refrigerant flows in the heat exchanger tubes of the heat exchanger, and vapor in the external air is cooled in the heat exchange tubes to become dew water which is adhered to the heat exchange tubes and perimeters of fins. The dew water flows down along the heat exchange tubes and the fins, and then drips onto the bottom plate. The dew water is known as drain water, and flows to the drainage hole through the drainage conduit provided in the bottom plate to be discharged from the outdoor unit. In a case where the drain water is not smoothly led to the drainage hole, the drain water is locally collected around the heat exchanger or the bottom plate, which leads to an adverse effect on the operation of the fan or the heat exchanger.
In particular, in cold climates, the drain water becomes frost and causes frost formation on the heat exchanger tubes or fins. When the frost adhered to the heat exchanger is melted by defrost operation which is regularly or occasionally performed, a large volume of water flows down to the bottom plate. The large volume of water is not discharged outwardly from the outdoor unit, but remains on the bottom plate of the outdoor unit which may be frozen. If the ice grows around the heat exchanger or the fan, it is disruptive to rotation of the fan, or the heat exchanger tubes of the heat exchanger are deformed by application of the pressure from its perimeter due to the ice.
Several drainage structures capable of guiding the drain water to the drainage hole have been proposed in the outdoor unit for the air conditioner. For example, related-art discloses an outdoor unit in which loading shelves on which the heat exchanger is partially loaded, and a drainage conduit are disposed on a bottom plate of a housing to be adjacent to each other, and the bottom plate of the heat exchanger is provided with a gutter communicating the heat exchanger loading shelves and the drainage conduit at one side of the heat exchanger (e.g., see JP-A-2005-188837 (FIGS. 1 and 2)).
According to the outdoor unit for the air conditioner of the related art, the loading shelves are installed near an edge of the bottom plate, an about half portion (back face side) of the heat exchanger is loaded on the loading shelves, and the remaining portion (front face side) of the heat exchanger in a width direction (width direction of fin) is positioned near a center of the bottom surface. In addition, the bottom plate of the lower portion of the heat exchanger is provided with the gutter inclining downward toward the drainage conduit, and the heat exchanger loading shelves at the rear side of the heat exchanger and the drainage conduit are communicated each other. With the configuration, the drain water generated from the front side of the heat exchanger directly drips onto the drainage groove, while the drain water generated from the rear side of the peripheral portion and flowing down to the heat exchanger loading shelves is usually led to the drainage conduit through the gutter.
However, the drain water generated from the rear side of the peripheral portion might be collected on the upper surface of the flat portion of the heat exchanger loading shelves. In particular, since the heat exchanger loading shelves are connected to a flange formed by upwardly folding back the lateral side of the outdoor unit housing, that is, the edge of the bottom plate, at the peripheral portion, there is a problem in that if the drain water drips on the boundary between the flange and the heat exchanger loading shelves, the drain water is not discharged, but is collected thereon. If the drain water collected thereon is frozen, there is fear that the heat exchanger loaded on the loading shelves is deformed by the grown ice.
Accordingly, there is provided a highly reliable outdoor unit for an air conditioner which can quickly discharge drain water without collecting it around the heat exchanger, and suppress growth of ice on a bottom plate to prevent the heat exchanger from being deformed.
According to an aspect of the present invention, there is provided an outdoor unit for an air conditioner, the outdoor unit including: a heat exchanger disposed inside a substantially rectangular parallelepiped housing along a lateral face of the housing; and a bottom plate forming a bottom portion of the housing, the bottom plate including, a bottom plate portion, a flange formed by upwardly folding back an edge of the bottom plate portion, a drainage hole penetrating the bottom plate portion and configured to discharge water inside the housing to an outside of the housing, a plurality of mounting bases provided on the bottom plate portion, protruding upwardly from the bottom plate portion at positions spaced apart from the flange by a predetermined distance, and supporting a lower end of the heat exchanger by upper surfaces thereof, and a drainage conduit provided in contact with the mounting bases and inclining downward toward the drainage hole, wherein a portion of the bottom plate portion positioned between at least one of the plurality of the mounting bases and the flange includes an inclined portion which is inclined toward the drainage conduit in a longitudinal direction of the flange.
According to another aspect of the present invention, there is provided an outdoor unit for an air conditioner, the outdoor unit including: a heat exchanger disposed inside a substantially rectangular parallelepiped housing along a lateral face of the housing; and a bottom plate forming a bottom portion of the housing, the bottom plate including, a bottom plate portion, a flange formed by upwardly folding back an edge of the bottom plate portion, a drainage hole penetrating the bottom plate portion and configured to discharge water inside the housing to an outside of the housing, a positioning wall including a protrusion portion which protrudes from the flange toward an inner side of the housing and is configured to determine a position of a lateral portion of the heat exchanger by abutting on the lateral portion of the heat exchanger, and a drainage conduit provided on a portion of the bottom plate portion in contact with the positioning wall and inclining downward toward the drainage hole, wherein an upper surface of the positioning wall is inclined downward toward the drainage conduit.
Accordingly, the bottom plate portion around the mounting base of the heat exchanger is inclined toward the drainage conduit, so that the drain water can be quickly discharged, without being collected around the mounting bases. Accordingly, there is the effect of providing the highly reliable outdoor unit for the air conditioner which can prevent the deformation of the heat exchanger due to the freeze of the drain water.
In addition, the drain water is not collected on the upper surface of the positioning wall for positioning the lateral portion of the heat exchanger, so that the drain water can be quickly discharged. Accordingly, there is the effect of providing the highly reliable outdoor unit for the air conditioner which can prevent the deformation of the heat exchanger due to the freeze of the drain water.
An outdoor unit for an air conditioner according to the first embodiment of the present invention will now be described.
In a fabrication process, after each unit (the compressor 2, the heat exchanger 3, the fan 4, the partition 6, and so forth) is attached to the bottom plate 5, later sides and an upper side of the housing 1 are fixed to the bottom plate 5 to thereby form the housing 1.
The bottom plate 5 includes of a bottom plate portion 5a forming the bottom portion of the housing 1, and a flange 10 formed by upwardly folding back an edge of the bottom plate portion 5a, for example, about 1 to 5 cm, at about 90 degrees. In the fabrication process, the lateral side of the housing 1 is fastened to the flange 10 by screws or like. In a case where an L-shaped heat exchanger 3 is installed, the heat exchanger is installed along two lateral sides of the housing 1. Two sides of the flange 10 among four sides thereof, which are provided along the installation position of the heat exchanger 3, are denoted by flanges 10a and 10b. A folded-back portion 14 extending from the edge of the bottom plate portion 5a to the flange 10 is formed in a rounded curve, and the flange 10 extending to the folded-back portion 14 has a smooth stepped portion. Further, a direction of the flange 10 extending along four sides of the bottom plate portion 5a is denoted by a longitudinal direction L of the flange 10. That is, as illustrated in
The bottom plate 5 housing the heat exchanger 3 and the fan 4 has a drainage conduit 8 connected to the drainage hole 7. In addition, the partition 6 between the sections for housing the compressor 2 is indicated by a dotted line in
A plurality of, for example, three, mounting bases 9, 13 and 15 for supporting the lower end of the heat exchanger 3 are provided to be scattered in a plurality of locations on the bottom plate 5. To reliably support the heat exchanger 3, three mounting bases, that is, the mounting bases 9 and 15 provided near both ends of the substantially L-shaped heat exchanger in the left and right directions (a parallel direction of the fin 3b) and the mounting base 13 provided near a corner portion at which the center portion of the heat exchanger 3 is bent at about 90 degrees, protrude upwardly from the inside of the housing 1 in a highland shape. The lower end of the heat exchanger 3 is supported by upper surfaces 9a, 13a and 15a (flat surfaces) of the protrusions of the mounting bases 9, 13 and 15. The mounting bases 9, 13 and 15 are provided at positions spaced apart from the flange 10 (10a and 10b) by a predetermined distance, and the bottom plate portion 5a between the mounting base 9 and the flange 10 are inclined in the longitudinal direction L of the flange 10 to form an inclined portion 11 (11a, 11b and 11c) facing the drainage conduit 8. The upper surfaces 9a, 13a and 15a of the mounting bases 9, 13 and 15 are formed as a flat surface to easily fix the heat exchanger 3. Also, a side of the respective mounting bases 9, 13 and 15 which does not face the flange 10 (10a and 10b) contacts with the drainage conduit 8 at lateral faces 9b, 13b and 15b of the mounting base, which are inclined surfaces smoothly widened toward its end. Further, a width of the flat surface of the upper surfaces 9a, 13a and 15a of the mounting bases is equal to or shorter than a width of the heat exchanger 3. The width of the heat exchanger 3 means a length of a direction (not the vertical direction) perpendicular to the longitudinal direction (a parallel direction of the fins) of the heat exchanger 3, and is substantially equal to the width (e.g., 10 to 30 mm) of one sheet of fin.
Next, the respective mounting bases 9, 13 and 15 and the bottom plate portion 5a around the mounting bases will be described. First, the mounting base 9 and the bottom plate portion 5a around the mounting base 9 will be described.
The mounting base 9 is installed at a position spaced apart from the flange 10 which is closest to the mounting base 9, by a predetermined distance K. Herein, the flange-side end of the upper surface 9a of the mounting base is spaced apart from the flange 10a by about 10 mm. For this reason, the heat exchanger 3 is fixed to the mounting bases far from the flange 10a. As illustrated in
As illustrated in
According to the outdoor unit for the air conditioner, at the time of a heating operation to heat an interior, the drain water generated when the external air is cooled in the heat exchanger 3 directly drips onto the mounting base 9 and its surroundings along the fins of the heat exchanger 3. The drain water flows to the drainage conduit 8 at a portion around the mounting base 9 which contacts with the drainage conduit 8. Further, the drain water dripping onto the portion of the mounting base 9 close to the flange 10a, that is, the region R1 in
Both ends of the heat exchanger 3 protrude from the mounting base 9, and the lateral face 9b of the mounting base 9, the drainage conduit 8, or the inclined portion 11a is formed just below the protruding portions of the both ends of the heat exchanger 3. The drain water dripping onto the upper surface 9a of the mounting base along the fins of the heat exchanger 3 is dragged by the flow running down from both ends of the upper surface 9a of the mounting base, and then easily flows to the bottom plate portion 5a from both ends of the heat exchanger 3 in the width direction.
The width of the heat exchanger 3 (in a direction perpendicular to the longitudinal direction of the heat exchanger and a width of one sheet of fin) may be equal to the width of the upper surface 9a of the mounting base. It is preferable that both ends of the heat exchanger 3 protrude from both ends of the mounting base 9. However, even if the heat exchanger 3 does not protrude, the drain water dripping onto the portion close to the lateral face 9b of the upper surface 9a of the mounting base smoothly flows along the inclination of the lateral face 9b. Since the mounting base 9 is formed in the highland shape protruding upwardly from the bottom plate portion 5a around the mounting base 9, the drain water is hardly collected on the flat portion of the mounting base 9.
Next, the mounting base 13 and the bottom plate portion 5a around the mounting base will be described.
The mounting base 13 provided at the corner of the rectangular bottom plate 5 has a portion extending in the longitudinal direction L(10a) of the flange 10a, and a portion extending in the longitudinal direction L(10b) of the flange 10b. The mounting base 13 according to this embodiment is installed at the position spaced apart from the flange 10a and the flange 10b by a predetermined distance. For example, the flange-side end of the upper surface 13a is installed at the position spaced apart from the flange 10a and the flange 10b by about 10 to 20 mm. For example, a distance of the flange 10a between a flange-side end P4 and a position P3 on the flange 10a, and a distance of the flange 10b between a flange-side end V6 and a position V5 on the flange 10b are set to 10 to 20 mm. The bottom plate portion 5a between the flange 10a and the mounting base 13 is the inclined portion 11b (10a side) inclined in the longitudinal direction L(10a) of the flange 10a. The bottom plate portion 5a between the flange 10b and the mounting base 13 is the inclined portion 11b (10b side) inclined in the longitudinal direction L(10b) of the flange 10b. The inclined portions 11a and 11b are lower than the height of the upper surface 13a of the mounting base. In the drawing, the directions of the downward inclinations of the inclined portions 11b (10a side) and 11b (10b side) are indicated by the arrows. The fronts of the downward inclinations of the inclined portions 11b (10a side) and 11b (10b side) face the drainage conduit 8 installed on the bottom plate portion 5a.
As illustrated in
Although the bottom plate portion 5a positioned near the position V2 is illustrated as a flat state in the direction L(10b) in
The inclined direction of the inclined portion 11b (10a side) and the inclined direction of the inclined portion 11b (10b side) may not face the closest drainage conduit 8. At least one inclined portion 11b of the inclined portion 11b (10a side) and the inclined portion 11b (10b side) preferably faces the drainage conduit 8. For example, the inclined portion 11b (10b side) may be inclined downward in the opposite direction, that is, from the position P2 to the position V2. In this instance, the drain water dripping onto the inclined portion 11b (10b side) flows to the drainage conduit 8 through the inclined portion 11b (10a side).
As illustrated in
Next, the mounting base 15 and the bottom plate portion 5a around the mounting base 15 will be explained.
Also in the mounting base 15, among the drain water dripping onto the upper surface 15a of the mounting base 15 and around the mounting base 15, the drain water dripping onto the flange 10b side flows along the downward inclination of the inclined portion 10c, and then is led to the drainage conduit 8. In addition, the drain water dripping around the side of the mounting base which does not extend along the flange 10b flows from the lateral face 15b of the mounting base 15 to the drainage conduit 8. The drain water is urged by the inclination of the drainage conduit 8, and then is discharged from the drainage hole 7.
Even though there is a flat surface between the inclined portion 11 and the drainage conduit 8, the drain water flows downward from the upper side by the inclination fore to or rear to the flat portion, and then flows to the drainage hole 7 which is installed at the lowest position.
For the bottom plate portion 5a, the drainage conduit 8 may not be inclined toward a direction straightly close to the drainage hole 7. If the flow of the water is finally led to the drainage hole 7, the water is not collected on the bottom plate portion 5a, and thus it is possible to prevent the drain water or the ice from affecting on each unit.
In this embodiment, the inclination of the inclined portion 11 in the direction L(10a) means that if two points spaced apart from each other in the direction L(10a) and being parallel to each other are taken, the vertical heights of the bottom plate portion 5a at these two points are different. Further, the inclination of the inclined portion 11 in the direction L(10a) means that the inclined portion 11 may be inclined at least in the direction L(10a), or may also be inclined in a direction other than the direction L(10a).
The inclination of the inclined portion 11 in the direction L(10b) is also equal to the above description.
Further, although one drainage hole 7 is provided, two or more drainage holes may be provided. Further, three mounting bases 9 are provided, but the present invention is not limited thereto. Two, four or more mounting bases may be provided. In this embodiment, the lateral faces 9b, 13b and 15b forming the mounting bases 9, 13 and 15 of the highland shape are inclined to be widened toward the bottom plate portion 5a, but the lateral faces 9b, 13b and 15b may be vertical from the bottom plate portion 5a.
Although the outdoor unit including the heat exchanger 3 which is disposed in the L-shape along two lateral faces of the housing 1 has been described herein, a heat exchanger of other shape may be provided. For example, the heat exchanger 3 may be disposed in an I-shape along one lateral face of the housing 1. In this instance, three mounting bases are not necessary, and both ends of the heat exchanger 3 may be supported at two locations. Further, even when the heat exchanger is formed in the L-shape, the number of the mounting bases 9 may not be three.
As described above, according to this embodiment, there is provided the outdoor unit for the air conditioner, the outdoor unit including, the heat exchanger 3 disposed inside the substantially rectangular parallelepiped housing 1 along the lateral face of the housing 1, and the bottom plate 5 forming the bottom portion of the housing 1, the bottom plate 5 including the bottom plate portion 5a, the flange 10 formed by upwardly folding back the edge of the bottom plate portion 5a, the drainage hole 7 penetrating the bottom plate portion 5a and configured to discharge the water inside the housing to an outside of the housing 1, the plurality of mounting bases 9, 13 and 15 provided on the bottom plate portion 5a, protruding upwardly from the bottom plate portion at the positions spaced apart from the flange 10 by the predetermined distance, and supporting the lower end of the heat exchanger 3 at the upper surfaces 9a, 13a and 15a, and the drainage conduit 8 provided in contact with the mounting bases 9, 13 and 15 and inclining downward toward the drainage hole 7, wherein the bottom plate portion 5a positioned between the mounting bases 9, 13 and 15 and the flange 10 includes the inclined portion 11 inclined toward the drainage conduit 8 in the longitudinal direction L of the flange 10. Accordingly, the drain water can be quickly discharged, without being collected around the mounting bases 9, 13 and 15. Further, the highly reliable outdoor unit for the air conditioner which can prevent the deformation of the heat exchanger 3 due to the freeze of the drain water can be provided.
Further, the inclined portion 11 is inclined downward toward the drainage conduit 8 from the position which is lower than the upper surfaces 9a, 13a and 15a of the mounting bases 9, 13 and 15 and is higher than the drainage conduit 8. Accordingly, the drain water can be quickly discharged, without being collected around the mounting bases 9, 13 and 15. Accordingly, there is the effect of providing the highly reliable outdoor unit for the air conditioner which can prevent the deformation of the heat exchanger 3 due to the freeze of the drain water.
In addition, both ends of the heat exchanger 3 in a width direction thereof (in the direction perpendicular to the longitudinal direction of the heat exchanger and the width of one sheet of fin) protrude outward from upper surfaces 9a, 13a and 15a of the mounting base. Accordingly, the drain water is prevented from being collected around the mounting bases 9, 13 and 15. Also, the drain water flows to the inclined portion 11 or the drainage conduit 8, so that the drain water is quickly discharged from the housing 1 through the drainage hole 7.
An outdoor unit for an air conditioner according to the second embodiment of the present invention will now be described. In the second embodiment, the configuration in which the flange 10 is provided with a positioning wall for the heat exchanger 3 will be described. In the drawings, the same reference numerals as those of the first embodiment indicate the same or equivalent parts.
As illustrated in
As illustrated in
The lateral face of the housing 1 is fixed to the outside of the flange 10, but a slight gap is formed between the flange 10 and the housing 1. For example, if the lateral face of the heat exchanger 3 is close to the flange 10, there is a possibility that when the drain water splashes from the end of the fin 3b, the water may drip onto the outside of the flange 10. That is, there is a problem in that the drain water is leaked from the lateral face of the housing 1 to the outside of the outdoor. However, with the above configuration, since the lateral face of the heat exchanger 3 is fixed to the position spaced apart from the flange 10 by a predetermined distance by the positioning wall 12, it is possible to prevent the problem in that the drain water is leaked from the lateral face of the housing 1. The distance between the lateral face of the heat exchanger 3 and the flange 10 is not limited to 10 mm. It is only necessary that the distance between the lateral face of the heat exchanger and the flange 10 is set to be longer than the flying distance by estimating, calculating or testing the flying distance of the water drops from the lateral face of the heat exchanger 3.
The upper surface 12a of the positioning wall 12 is inclined downward toward the drainage conduit 8, as illustrated in
The upper surface 12a of the positioning wall 12 may be configured by combining two inclinations in an upwardly convex shape, as illustrated in
In addition, the shape of the protrusion 12b of the positioning wall 12 is not limited to that illustrated in
As described above, according to this embodiment, there is provided the outdoor unit for the air conditioner, the outdoor unit including: the heat exchanger 3 disposed inside a substantially rectangular parallelepiped housing along the lateral face of the housing 1; and the bottom plate 5 forming the bottom portion of the housing 1, the bottom plate including, the bottom plate portion 5a, the flange 10 formed by upwardly folding back the edge of the bottom plate portion 5a, the drainage hole 7 penetrating the bottom plate portion 5a and configured to discharge the water inside the housing 1 to the outside of the housing 1, the positioning wall 12 including the protrusion 12b which protrudes from the flange 10 toward the inner side of the housing 1 and is configured to determine the position of the lateral portion of the heat exchanger 3 by abutting on the lateral portion of the heat exchanger 3, and the drainage conduit 8 provided on the portion of the bottom plate portion 5a in contact with the positioning wall 12 and inclining downward toward the drainage hole 7, wherein the upper surface 12a of the positioning wall 12 is inclined downward toward the drainage conduit 8. Accordingly, the drain water can be quickly discharged, without being collected on the upper surface 12a of the positioning wall 12. Further, the highly reliable outdoor unit for the air conditioner, which can prevent the deformation of the heat exchanger 3 due to the freeze of the drain water, can be provided.
The positioning wall 12 may not be provided in plural. For example, for the I-shaped heat exchanger, the position of the lateral face of the heat exchanger can be determined by one positioning wall 12. Further, the positioning wall 12 is usually formed integrally with the bottom plate 5 by press molding, but the present invention is not limited thereto. The positioning wall 12 may be fixed to the flange 10 as a separate member.
The present invention provides illustrative, non-limiting examples as follows:
(1) In a first aspect, there is provided an outdoor unit for an air conditioner, the outdoor unit including: a heat exchanger disposed inside a substantially rectangular parallelepiped housing along a lateral face of the housing; and a bottom plate forming a bottom portion of the housing, the bottom plate including, a bottom plate portion, a flange formed by upwardly folding back an edge of the bottom plate portion, a drainage hole penetrating the bottom plate portion and configured to discharge water inside the housing to an outside of the housing, a plurality of mounting bases provided on the bottom plate portion, protruding upwardly from the bottom plate portion at positions spaced apart from the flange by a predetermined distance, and supporting a lower end of the heat exchanger by upper surfaces thereof, and a drainage conduit provided in contact with the mounting bases and inclining downward toward the drainage hole, wherein a portion of the bottom plate portion positioned between at least one of the plurality of the mounting bases and the flange includes an inclined portion which is inclined toward the drainage conduit in a longitudinal direction of the flange.
(2) In a second aspect, there is provided the outdoor unit for the air conditioner according to the first aspect, wherein the inclined portion is inclined downward toward the drainage conduit from a position which is lower than the upper surface of the mounting base and is higher than the drainage conduit.
(3) In a third aspect, there is provided the outdoor unit for the air conditioner according to the first or second aspect, wherein both ends of the heat exchanger in a width direction thereof protrude outward from the upper surface of the mounting base.
(4) In a fourth aspect, there is provided the outdoor unit for the air conditioner according to the first aspect, wherein portions of the bottom plate portion positioned between each of the plurality of the mounting bases and the flange respectively include the inclined portion which is inclined toward the drainage conduit in the longitudinal direction of the flange.
(5) In a fifth aspect, there is provided an outdoor unit for an air conditioner, the outdoor unit including: a heat exchanger disposed inside a substantially rectangular parallelepiped housing along a lateral face of the housing; and a bottom plate forming a bottom portion of the housing, the bottom plate including, a bottom plate portion, a flange formed by upwardly folding back an edge of the bottom plate portion, a drainage hole penetrating the bottom plate portion and configured to discharge water inside the housing to an outside of the housing, a positioning wall including a protrusion portion which protrudes from the flange toward an inner side of the housing and is configured to determine a position of a lateral portion of the heat exchanger by abutting on the lateral portion of the heat exchanger, and a drainage conduit provided on a portion of the bottom plate portion in contact with the positioning wall and inclining downward toward the drainage hole, wherein an upper surface of the positioning wall is inclined downward toward the drainage conduit.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2012-250858 | Nov 2012 | JP | national |
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| 203615503 | May 2014 | CN |
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| Entry |
|---|
| Office Action mailed Jun. 9, 2015 issued in corresponding JP patent application No. 2012-250858 (and English translation). |
| Office Action mailed Nov. 18, 2014 issued in corresponding JP patent application No. 2012-250858 (and English translation). |
| Office Action mailed Sep. 29, 2015 issued in corresponding JP patent application No. 2015-000187 (and English translation). |
| Chinese Office Action issued on Dec. 28, 2015 in the corresponding CN application No. 201310586044.6(English translation attached). |
| Number | Date | Country | |
|---|---|---|---|
| 20140131024 A1 | May 2014 | US |
