Heat exchanger bracket

Abstract

The bracket (40) comprises: a bottom wall (42) arranged to be opposite to the bottom wall of the box, and a side wall (41) formed to extend from the bottom wall along the outer wall of the box. When the space for box configuration in the space divided by the bottom wall and the side wall is regarded as the internal space (Sa), and the space located on the side opposite to the internal space across the bottom wall and the side wall is regarded as the external space (Sb), a connecting portion (45) for connecting the internal space with the external space is formed in a portion of the side wall adjacent to the bottom wall.

Description

[0001] Cross-references of related applications

[0002] This application claims the benefit of priority based on Japanese Patent Application No. 2020-023488 filed on February 14, 2020, and all the contents of the patent application are incorporated into this specification by reference. Technical Field

[0003] The invention relates to a support for a heat exchanger. Background Art

[0004] Conventionally, there is a bracket for a heat exchanger as described in the following Patent Document 1. The bracket described in Patent Document 1 is attached to a box of a heat exchanger mounted on a vehicle. The bracket is used to fix a fan cover to the heat exchanger or to fix the heat exchanger to a vehicle body.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application Publication No. 2005-337530

[0008] The heat exchanger has a component that functions as a so-called heat absorber, which causes the heat medium flowing inside the heat exchanger to absorb the heat of the air by exchanging heat with the air flowing outside the heat exchanger. In such a heat exchanger, heat is exchanged between the heat medium flowing inside the box and the air existing outside the box, so that the air existing outside the box is cooled. As a result, when water vapor in the air condenses, condensed water is generated on the outer surface of the box.

[0009] On the other hand, when the bracket described in Patent Document 1 is mounted on such a heat absorber, when condensed water is generated on the outer surface of the box, the condensed water may accumulate between the outer surface of the box and the bracket. When the condensed water freezes, the bracket may be damaged due to the volume expansion of the condensed water. Summary of the invention

[0010] An object of the present invention is to provide a bracket for a heat exchanger capable of suppressing damage due to freezing of condensed water.

[0011] A support for a heat exchanger according to one embodiment of the present invention is mounted on a cross-flow type heat exchanger, the heat exchanger having a plurality of tubes for fluid to flow therein and a box connected to the ends of the plurality of tubes, the tubes being arranged to extend in a horizontal direction, the box being arranged to extend in a vertical direction, and the heat exchanger operating as a heat absorber, the heat absorber exchanging heat between the air flowing between the plurality of tubes and the fluid flowing inside the tubes, so that the fluid absorbs heat from the air. The support has a bottom wall and a side wall, when a cylindrical portion of the box extending in a vertical direction is used as a box outer wall portion, and a portion that is arranged to close an opening below the box outer wall portion in a vertical direction is used as a box bottom wall portion, the bottom wall is arranged to be opposite to the box bottom wall portion, and the side wall is formed to extend from the bottom wall along the box outer wall portion. When a space for the box to be arranged in a space divided by the bottom wall and the side wall is used as an internal space, and a space located on the opposite side of the internal space across the bottom wall and the side wall is used as an external space, a connecting portion is formed in a portion of the side wall adjacent to the bottom wall, the connecting portion connecting the internal space with the external space.

[0012] In addition, a support for a heat exchanger of another embodiment of the present invention is mounted on a cross-flow type heat exchanger, the heat exchanger having a plurality of tubes for fluid to flow inside and a box connected to the ends of the plurality of tubes, the tubes being arranged to extend in a horizontal direction, and the box being arranged to extend in a vertical direction, and the heat exchanger operating as a heat absorber, the heat absorber performing heat exchange between the air flowing between the plurality of tubes and the fluid flowing inside the tubes, so that the fluid absorbs heat from the air. The support has a bottom wall and a side wall, when a cylindrical portion of the box extending in a vertical direction is used as a box outer wall portion, and a portion of the box that is arranged to close an opening below the box outer wall portion in a vertical direction is used as a box bottom wall portion, the bottom wall is arranged to be opposite to the box bottom wall portion, and the side wall is formed to extend from the bottom wall along the box outer wall portion. When a space for the box to be arranged in a space divided by the bottom wall and the side wall is used as an internal space, and a space located on the side opposite to the internal space across the bottom wall and the side wall is used as an external space, a connecting portion is formed on the bottom wall, the connecting portion connecting the internal space with the external space.

[0013] According to these configurations, condensed water generated in the internal space of the bracket is discharged to the external space through the communicating portion, so that damage to the bracket due to freezing of the condensed water can be suppressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a perspective view showing the three-dimensional structure of the heat exchanger according to the first embodiment.

[0015] Figure 2 This is a front view showing the front structure of the tank and its surroundings of the heat exchanger according to the first embodiment.

[0016] Figure 3It is a side view showing the side structure of the tank and its surroundings of the heat exchanger according to the first embodiment.

[0017] Figure 4 It means along Figure 2 A cross-sectional view of the cross-sectional structure along line IV-IV.

[0018] Figure 5 It is a side view showing the side structure of the bracket according to the first embodiment.

[0019] Figure 6 This is a front view showing the front structure of the bracket according to the first embodiment.

[0020] Figure 7 This is a front view showing the front structure of the heat exchanger to which the bracket according to the first embodiment is assembled.

[0021] Figure 8 It means along Figure 7 A cross-sectional view of the cross-sectional structure along line VIII-VIII.

[0022] Fig. 9 This is a side view showing the side structure of the heat exchanger to which the bracket according to the first embodiment is assembled.

[0023] Fig.10 It is a front view showing the front structure of a bracket according to a first modification example of the first embodiment.

[0024] Fig.11 It is a front view showing the front structure of a bracket according to a second modified example of the first embodiment.

[0025] Fig.12 It is a front view showing the front structure of a bracket according to a third modified example of the first embodiment.

[0026] Fig.13 It is a side view showing the side structure of a bracket according to a fourth modified example of the first embodiment.

[0027] Fig.14 It is a front view showing the front structure of the bracket according to the second embodiment. DETAILED DESCRIPTION

[0028] Hereinafter, embodiments of the support for a heat exchanger will be described with reference to the accompanying drawings. To facilitate understanding of the description, the same components are denoted by the same reference numerals as much as possible in the drawings, and repeated descriptions are omitted.

[0029] <First embodiment>

[0030] First, a first embodiment of a bracket for a heat exchanger will be described.

[0031] like Figure 1 As shown, the heat exchanger 10 includes a first heat exchange part 20 and a second heat exchange part 30. A heat medium such as LLC flows inside the first heat exchange part 20 and the second heat exchange part 30. Hereinafter, the heat medium flowing inside the first heat exchange part 20 is referred to as the first heat medium, and the heat medium flowing inside the second heat exchange part 30 is referred to as the second heat medium. In this embodiment, the first heat medium is equivalent to the first fluid, and the second heat medium is equivalent to the second fluid. The first heat exchange part 20 and the second heat exchange part 30 are formed of an aluminum alloy.

[0032] The first heat exchange unit 20 includes a core 21 and tanks 22 and 23 .

[0033] The core 21 has a plurality of tubes 210 and side plates 211 and 212 .

[0034] The tube 210 is formed of a flat cylindrical member extending in the direction indicated by the arrow X in the figure. The internal space of the tube 210 serves as a flow path for the first heat medium to flow. The plurality of tubes 210 are arranged with a predetermined gap in the direction indicated by the arrow Z in the figure. Air flows in the gap between the adjacent tubes 210, 210.

[0035] Hereinafter, the direction indicated by the arrow X is also referred to as the “tube longitudinal direction X”, and the direction indicated by the arrow Z is also referred to as the “tube stacking direction Z”.

[0036] like Figure 2 As shown, an outer fin 213 is arranged between adjacent tubes 210, 210. The outer fin 213 is formed by bending a thin metal plate into a wave shape, and is composed of a so-called corrugated fin. The outer fin 213 is provided to increase the contact area with the air flowing between the tubes 210, 210, thereby promoting heat exchange between the first heat medium flowing inside the tube 210 and the air.

[0037] like Figure 1 As shown, side plates 211 and 212 are respectively arranged at both ends of the stacked structure of the tubes 210 in the tube stacking direction Z. The side plates 211 and 212 are formed to extend along the tube longitudinal direction X. The side plates 211 and 212 are provided to reinforce the stacked structure of the tubes 210 .

[0038] like Figure 1As shown, the boxes 22 and 23 are respectively installed at both ends of the core 21 in the tube longitudinal direction X. The boxes 22 and 23 are composed of cylindrical components extending in the tube stacking direction Z. The boxes 22 and 23 are respectively connected to the two ends of the plurality of tubes 210. One end of each of the plurality of tubes 210 penetrates the outer wall of the box 22 on one side and is arranged in the internal space of the box 22. The other end of each of the plurality of tubes 210 penetrates the outer wall of the box 23 on the other side and is arranged in the internal space of the box 23. The box 22 is provided with an inlet 220 for allowing the first heat medium to flow into the interior of the box 22. The box 23 is provided with an outlet 230 for allowing the first heat medium inside the box 23 to flow out to the outside.

[0039] In the first heat exchange unit 20, the first heat medium flowing into the tank 22 from the inlet 220 is distributed to the internal flow paths of the plurality of tubes 210. When the first heat medium flows through each tube 210, heat is exchanged between the first heat medium flowing inside each tube 210 and the air flowing outside each tube 210, so that the heat of the air is absorbed by the first heat medium. Therefore, the first heat exchange unit 20 acts as a heat absorber. The first heat medium flowing through each tube 210 is collected by the tank 23 and then discharged from the outlet 230.

[0040] The heat exchanger 10 of this embodiment is arranged so that the tube longitudinal direction X and the air flow direction Y are horizontal and the tube stacking direction Z is vertical. Therefore, the first heat exchange part 20 has a so-called cross-flow type structure in which the first heat medium flows horizontally.

[0041] The second heat exchange section 30 is arranged on the upstream side of the air flow direction Y relative to the first heat exchange section 20. Therefore, the heat exchanger 10 has the first heat exchange section 20 and the second heat exchange section 30 arranged in the air flow direction Y. The second heat exchange section 30 has a structure substantially the same as that of the first heat exchange section 20. That is, the second heat exchange section 30 has a core 31 and boxes 32 and 33. The core 31 has a plurality of tubes 310 and side plates 311 and 312. An inlet 320 is provided in the box 32. An outlet 330 is provided in the box 33. In the second heat exchange section 30, heat is exchanged between the second heat medium flowing inside each tube 310 and the air flowing outside each tube 310, so that the heat of the second heat medium is released to the air. Therefore, the second heat exchange section 30 acts as a radiator.

[0042] The heat exchanger 10 also includes a bracket mounted on the box 22 of the first heat exchange unit 20 and the box 32 of the second heat exchange unit 30, and a bracket mounted on the box 23 of the first heat exchange unit and the box 33 of the second heat exchange unit 30. Each bracket is used to fix the heat exchanger 10 to the vehicle body. The structure of each bracket is basically the same, so the structure of the bracket mounted on the box 22 of the first heat exchange unit and the box 32 of the second heat exchange unit 30 is described as a representative.

[0043] In addition, hereinafter, the direction indicated by the arrow Z is referred to as the "vertical direction Z", the direction indicated by the arrow X is referred to as the "first horizontal direction X", and the direction indicated by the arrow Y is referred to as the "second horizontal direction Y". In addition, the upper side of the vertical direction Z is referred to as the "vertical upper side Z1", and the lower side of the vertical direction Z is referred to as the "vertical lower side Z2".

[0044] In addition, if Figure 3 As shown, the cylindrical portions of the boxes 22 and 32 extending in the vertical direction Z are respectively referred to as the box outer wall portions 221 and 321. In addition, the portions that are provided to close the openings at the vertically lower side Z2 of the box outer wall portions 221 and 321 are respectively referred to as the box bottom wall portions 222 and 322. Furthermore, the surfaces of the box outer wall portions 221 and 321 that are located on the outside in the second horizontal direction Y are respectively referred to as the side surfaces 221a and 321a. In addition, as shown in FIG. Figure 4 As shown in FIG. 1 , the surface of the connecting pipe 210 in the outer wall portion 221, 321 is referred to as the inner surface 221b, 321b, and the surface on the opposite side to the inner surface 221b, 321b is referred to as Figure 3 As shown, they are referred to as outer surfaces 221c, 321c.

[0045] like Figure 5 and Figure 6 As shown, the bracket 40 has a side wall 41 and a bottom wall 42. The bracket 40 is formed of a resin. The resin used to form the bracket 40 is a polyamide resin, a polypropylene resin, a polyacetal resin, or the like.

[0046] The side wall 41 has a bottom portion 410 and side portions 411 and 412, and has a concave cross-sectional shape perpendicular to the vertical direction Z. The bottom portion 410 is a plate-shaped portion of the side wall 41 extending along the vertical direction Z. The side portions 411 and 412 are portions extending from both ends of the bottom portion 410 in the width direction to the second horizontal direction Y.

[0047] A plurality of ribs 413 are formed on the inner surface of the side edge portion 411 of the side wall 41. Figure 5 As shown, the rib 413 is formed to extend rectangularly from one end in the first horizontal direction X to the other end of the inner surface of each of the side portions 411 and 412. The plurality of ribs 413 are arranged at predetermined intervals in the vertical direction Z. Figure 6 As shown in FIG. 1 , ribs 414 are similarly formed on the inner surface of the other side portion 412 of the side wall 41. The ribs 413 and 414 are arranged so as to face each other in the second horizontal direction Y.

[0048] like Figure 5 and Figure 6As shown, the bottom wall 42 is provided to close the opening portion of the side wall 41 on the vertically downward direction Z2. The top end surface 420 of the bottom wall 42 in the first horizontal direction X is formed with engaging claws 43 and 44. The engaging claw 43 is arranged on the side of the side portion 411 at the top end surface 420 of the bottom wall 42 compared with the central portion thereof. The engaging claw 44 is arranged on the side of the side portion 412 at the top end surface 420 of the bottom wall 42 compared with the central portion thereof.

[0049] A mounting pin 47 is formed on the bottom surface of the bottom wall 42 at the vertically lower side Z2. The mounting pin 47 is a portion to be inserted into a pin insertion portion provided on the vehicle body.

[0050] Hereinafter, the space defined by the side wall 41 and the bottom wall 42 in the bracket 40 is referred to as an internal space Sa, and the space formed on the opposite side of the internal space Sa across the side wall 41 and the bottom wall 42 is referred to as an external space Sb.

[0051] Through holes 45 and 46 are formed in a portion of the side wall 41 adjacent to the bottom wall 42. The through holes 45 and 46 are formed to penetrate the side wall 41 from its inner surface to the outer surface. The through holes 45 and 46 are respectively arranged to be aligned with the engaging claws 43 and 44 in the first horizontal direction X. In the present embodiment, the through holes 45 and 46 are equivalent to a connecting portion that connects the internal space Sa of the bracket 40 with the external space Sb.

[0052] Figure 5 and Figure 6 The bracket 40 shown is as shown in Figure 7 to Figure 9 The boxes 22 and 32 are installed as shown. The boxes 22 and 32 are inserted into the internal space Sa of the bracket 40. Therefore, the internal space Sa of the bracket 40 corresponds to the space for the boxes 22 and 32 to be arranged. Figure 7 to Figure 9 As shown, when the bracket 40 is mounted on the box 22, 32, the side wall 41 of the bracket 40 is opposite to the outer wall portion 221, 321 of the box 22, 32, respectively, and the bottom wall 42 of the bracket 40 is opposite to the bottom wall portion 222, 322 of the box 22, 32, respectively. More specifically, the side edge portion 411 of one side wall 41 of the bracket 40 is arranged to be opposite to the side surface 221a of the outer wall portion 221 of the box 22. In addition, the side edge portion 412 of the other side of the side wall 41 of the bracket 40 is arranged to be opposite to the side surface 321a of the outer wall portion 321 of the box 32. Moreover, the bottom edge portion 410 of the side wall 41 of the bracket 40 is arranged to be opposite to the outer surface 221c, 321c of the outer wall portion 221, 321 of the box 22, 32, respectively.

[0053] like Figure 8 and Fig. 9As shown, the side surface 221a of the box 22 contacts the top surfaces of the plurality of ribs 413 formed on the side portions 411 and 412 of the bracket 40, and the side surface 321a of the box 32 contacts the top surfaces of the plurality of ribs 414 formed on the other side portion 412 of the bracket 40, whereby the ribs 413 and 414 clamp the box 22 in the second horizontal direction Y. Thus, the bracket 40 engages with the boxes 22 and 32 in the second horizontal direction Y. In addition, as shown in FIG. Figure 7 and Figure 8 As shown, the engaging claws 43 and 44 of the bracket 40 engage with the inner surfaces 221b and 321b of the outer wall portions 221 and 321 of the boxes 22 and 32, respectively, thereby engaging the bracket 40 and the boxes 22 and 32 in the first horizontal direction X. With such an engaging structure, the bracket 40 is fixed relative to the boxes 22 and 32. The mounting pin 47 of the bracket 40 is inserted and fixed to the pin insertion portion of the vehicle body, thereby fixing the heat exchanger 10 to the vehicle body via the bracket 40.

[0054] On the other hand, in the heat exchanger 10, the first heat exchange part 20 performs a heat absorption operation, so condensed water is easily generated on the outer peripheral surface of the box 22. If condensed water is generated on the outer peripheral surface of the box 22, the condensed water flows downward in the vertical direction Z2. Therefore, the condensed water is easily accumulated in the portion downward in the vertical direction Z2 formed in the gap between the bracket 40 and the boxes 22 and 32. When the condensed water freezes and expands in volume, the bracket 40 may be damaged.

[0055] In this regard, in the bracket 40 of the present embodiment, the condensed water accumulated in the gap formed between the bracket 40 and the boxes 22, 32 is discharged to the external space Sb through the through holes 45, 46. Therefore, the condensed water is less likely to accumulate in the gap formed between the bracket 40 and the boxes 22, 32, and the damage of the bracket 40 caused by the freezing of the condensed water can be suppressed.

[0056] According to the holder 40 of the heat exchanger 10 of the present embodiment described above, the following operations and effects (1) to (4) can be obtained.

[0057] (1) Through holes 45 and 46 are formed in the side wall 41 of the bracket 40 at a portion adjacent to the bottom wall 42, penetrating the side wall 41 from the inner surface to the outer surface. The through holes 45 and 46 serve as a connecting portion for connecting the internal space Sa of the bracket 40 with the external space Sb. According to this structure, condensed water formed in the gap between the bracket 40 and the box 22 and 32, in other words, condensed water formed in the internal space Sa of the bracket 40 is discharged to the external space Sb through the through holes 45 and 46, so that damage to the bracket 40 caused by freezing of the condensed water can be suppressed.

[0058] (2) The manufacture of the bracket 40 is performed by resin molding using a mold. In the bracket 40 of the present embodiment, the engaging claws 43 and 44 protrude into the internal space Sa of the bracket 40. Therefore, after the side wall 41 and the bottom wall 42 of the bracket 40 are resin molded using a mold, when the mold is pulled out from the internal space Sa of the bracket 40, the engaging claws 43 and 44 may come into contact with the mold and become unable to be pulled out. In this regard, the engaging claws 43 and 44 of the bracket 40 of the present embodiment are arranged on the extension line of the through holes 45 and 46. According to this structure, after the engaging claws 43 and 44 are molded using a mold inserted into the through holes 45 and 46, the mold can be pulled out from the through holes 45 and 46. Thus, the bracket 40 having the engaging claws 43 and 44 can be easily molded.

[0059] (3) When the cross-sectional shape of the side wall 41 perpendicular to the vertical direction Z is concave as in the bracket 40 of the present embodiment, condensed water is particularly likely to accumulate in the portion of the bottom side 410 on the vertically lower Z2 side. In this regard, in the bracket 40 of the present embodiment, since the through holes 45 and 46 are formed in the portion of the bottom side 410 of the side wall 41 on the vertically lower Z2 side, the drainage performance of the condensed water can be effectively improved.

[0060] (4) Ribs 413 and 414 are formed on the inner surface of the side wall 41 of the bracket 40 so as to protrude toward the boxes 22 and 32. According to this structure, the bracket 40 can be fixed to the boxes 22 and 32 by holding the boxes 22 and 32 with the ribs 413 and 414. In addition, when the condensed water generated in the internal space Sa of the bracket 40 flows toward the vertically downward direction Z2 and contacts the outer surfaces 413a and 413b of the ribs 413 and 414 in the vertically upward direction Z1, the condensed water flows in the first horizontal direction X along the outer surfaces 413a and 413b of the ribs 413 and 414. As a result, the condensed water can also be discharged from the opening portion in the first horizontal direction X in the bracket 40, so that the drainage performance of the condensed water can be further improved.

[0061] (First Modification)

[0062] Next, a first modified example of the bracket 40 of the first embodiment will be described.

[0063] like Fig.10 As shown, in the bracket 40 of this modified example, an opening 60 is formed instead of the through holes 45 and 46. The opening 60 is formed at the bottom side 410 of the side wall 41 of the bracket 40. The cross-sectional shape of the opening 60 orthogonal to the first horizontal direction X is rectangular. The opening 60 is formed to extend from a portion of the bottom side 410 adjacent to the bottom wall 42 in the vertical direction Z1. The opening 60 is provided on the extension line of the engaging claws 43 and 44 in the first horizontal direction X.

[0064] The bracket 40 having such a structure can also obtain the same or similar operations and effects as those of the bracket 40 of the first embodiment.

[0065] (Second Modification)

[0066] Next, a second modification of the bracket 40 of the first embodiment will be described.

[0067] like Fig.11 As shown, in the bracket 40 of this modified example, a plurality of through holes 48 and 49 are further formed. The through holes 48 and 49 are formed to penetrate the bottom edge portion 410 of the side wall 41 of the bracket 40 from its inner surface to the outer surface. The plurality of through holes 48 are arranged at positions offset upward in the vertical direction Z1 relative to the through hole 45, and are arranged at a predetermined interval in the vertical direction Z. The plurality of through holes 48 are arranged with Figure 3 The outer surface 221c of the box 22 in the first horizontal direction X is opposite. The plurality of through holes 49 are arranged at positions offset from the through hole 46 in the vertical direction Z1 and arranged at predetermined intervals in the vertical direction Z. The plurality of through holes 49 are arranged to Figure 3 The outer surfaces 321 c in the first horizontal direction X of the box 32 are shown to be opposite.

[0068] When the bracket 40 having such a structure is used, the condensed water accumulated in the internal space Sa of the bracket 40 is further discharged through the through holes 48 and 49 , so that the discharge performance of the condensed water can be further improved.

[0069] In addition, the through holes 48 and 49 are arranged at positions offset from the ribs 413 and 414 in the vertical direction Z. According to this structure, the condensed water existing between the ribs 413 and 413 adjacent to each other in the vertical direction Z is discharged through the through hole 48, and the condensed water existing between the ribs 414 and 414 adjacent to each other in the vertical direction Z is discharged through the through hole 49. Therefore, the discharge performance of the condensed water can be further improved.

[0070] (Third Modification)

[0071] Next, a third modified example of the bracket 40 of the first embodiment will be described.

[0072] like Fig.12 As shown, in the bracket 40 of this modification, a plurality of through holes 48, 49 are arranged at positions overlapping with the ribs 413, 414 in the vertical direction Z. According to this structure, condensed water flowing along the outer surfaces 413a, 413b of the ribs 413, 414 is discharged to the external space Sb through the through holes 48, 49. Therefore, the discharge performance of condensed water can be further improved.

[0073] (Fourth Modification)

[0074] Next, a fourth modified example of the bracket 40 of the first embodiment will be described.

[0075] like Fig.13 As shown, in the bracket 40 of this modified example, the cross-sectional shape of the rib 413 perpendicular to the second horizontal direction Y is a trapezoid. The outer surface 413a located in the vertical direction upper Z1 of the rib 413 is inclined relative to the second horizontal direction Y in a manner that it moves toward the vertical direction lower Z2 toward the opening of the bracket 40. The rib 414 is formed in the same manner.

[0076] According to such a structure, condensed water reaching outer surfaces 413a and 413b of ribs 413 and 414 easily flows along outer surfaces 413a and 413b toward the opening of bracket 40, thereby further improving the discharge performance of condensed water. The shape of ribs 413 and 414 is not limited to a trapezoidal shape, but may be a triangle shape.

[0077] <Second embodiment>

[0078] Next, the bracket 40 of the second embodiment will be described. The following description will focus on the differences from the bracket 40 of the first embodiment.

[0079] like Fig.14 As shown, in the bracket 40 of the present embodiment, a through hole 50 is formed in the bottom wall 42. The through hole 50 is formed to penetrate the bottom wall 42 from the inner surface to the outer surface thereof and to penetrate the center portion of the mounting pin 47.

[0080] Even the bracket 40 of the present embodiment described above can obtain the same or similar effects as those described in (1) above.

[0081] <Other embodiments>

[0082] In addition, each embodiment can also be implemented in the following manner.

[0083] Condensed water is particularly likely to be generated in the tank 22 of the first heat exchange unit 20 that operates as a heat absorber, compared to the tank 32 of the second heat exchange unit 30 that operates as a radiator. Therefore, regarding the bracket 40 of the first embodiment, the through hole 46 arranged to face the tank 32 may be eliminated, and only the through hole 45 arranged to face the tank 22 may be formed. Even with this structure, the drainage of condensed water can be ensured.

[0084] In the bracket 40 of the second embodiment, the through hole 50 may be formed to penetrate a portion other than the portion where the mounting pin 47 is provided in the bottom wall 42 .

[0085] The present invention is not limited to the above-mentioned specific examples. Those skilled in the art have made appropriate design changes to the above-mentioned specific examples, as long as they have the characteristics of the present invention, they are included in the scope of the present invention. The various elements and their configurations, conditions, shapes, etc. possessed by the above-mentioned specific examples are not limited to the exemplified contents and can be appropriately changed. The various elements possessed by the above-mentioned specific examples can be appropriately changed in combination as long as no technical contradictions are generated.

Claims

1. A heat exchanger bracket, mounted on a cross-flow type heat exchanger, the heat exchanger having a plurality of tubes for fluid to flow therein and a box connected to the ends of the plurality of tubes, the tubes being arranged to extend in a horizontal direction, and the box being arranged to extend in a vertical direction, and the heat exchanger acting as a heat absorber, the heat absorber performs heat exchange between the air flowing between the plurality of tubes and the fluid flowing inside the tubes, so that the fluid absorbs heat from the air, characterized in that: having a bottom wall and a side wall, The cylindrical portion of the box extending in the vertical direction is used as the box outer wall, and the portion closing the opening in the vertical direction below the box outer wall is used as the box bottom wall. The bottom wall is arranged to be opposite to the box bottom wall portion, The side wall is formed to extend from the bottom wall along the outer wall of the box, The space in which the box is arranged in the space divided by the bottom wall and the side wall is defined as the internal space, and the space on the opposite side of the internal space across the bottom wall and the side wall is defined as the external space. A communicating portion is formed in a portion of the side wall adjacent to the bottom wall, and the communicating portion communicates the inner space with the outer space. The surface of the side wall opposite to the box is taken as the inner surface, A rib is formed on the inner surface of the side wall, the rib protruding toward the box, An outer surface of the rib located upward in the vertical direction is inclined with respect to the horizontal direction.

2. The support for a heat exchanger according to claim 1, characterized in that: The communication portion is a through hole formed to penetrate a portion of the side wall adjacent to the bottom wall from the inner surface to the outer surface thereof.

3. The support for a heat exchanger according to claim 2, characterized in that: It also includes an engagement claw that engages with the box. The engaging claw is arranged on an extension line of the through hole.

4. The support for a heat exchanger according to claim 1, characterized in that: The fluid is used as the first fluid, The heat exchanger comprises a first heat exchange portion and a second heat exchange portion arranged in the air flow direction, wherein the first fluid flows inside the first heat exchange portion and the second fluid flows inside the second heat exchange portion. The first heat exchange unit acts as the heat absorber, The second heat exchange portion operates as a radiator that releases heat of the second fluid to the air by exchanging heat between the air flowing outside the second heat exchange portion and the second fluid. The communication portion is disposed opposite to the tank of the first heat exchange portion.

5. The support for a heat exchanger according to claim 1, characterized in that: The side wall has a bottom edge portion and a side edge portion, the bottom edge portion is formed to extend along the outer wall portion of the box, and the side edge portion is formed to extend from both ends of the bottom wall in the width direction toward the long side direction of the tube, and the cross-sectional shape of the side wall orthogonal to the vertical direction is concave. The communication portion is formed at the bottom edge portion of the side wall.

6. The support for a heat exchanger according to any one of claims 1 to 5, characterized in that: A plurality of communication portions for connecting the inner space with the outer space are formed on the side wall.

7. The support for a heat exchanger according to any one of claims 1 to 5, characterized in that: The rib is formed at a position offset from the communication portion in the vertical direction.

8. The support for a heat exchanger according to any one of claims 1 to 5, characterized in that: The rib is formed at a position overlapping the communication portion in the vertical direction.

9. The support for a heat exchanger according to claim 8, characterized in that: The rib is formed in a trapezoidal shape or a triangular shape.

10. The support for a heat exchanger according to any one of claims 1 to 5, characterized in that: The bottom wall and the side wall are formed of any one of a polyamide resin, a polypropylene resin, and a polyacetal resin.

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