JP7413815B2 - heat exchanger bracket - Google Patents

Description

The present disclosure relates to brackets for heat exchangers.

Conventionally, there is a bracket for a heat exchanger described in Patent Document 1 below. The bracket described in Patent Document 1 is externally attached to a tank of a heat exchanger mounted on a vehicle. This bracket is used to fix the fan shroud to the heat exchanger or to fix the heat exchanger to the vehicle body.

Japanese Patent Application Publication No. 2005-337530

By the way, some heat exchangers are used as so-called heat absorbers, which exchange heat between the heat medium flowing inside the heat exchanger and the air flowing outside the heat exchanger, thereby absorbing the heat of the air into the heat medium. . In such a heat exchanger, heat exchange is performed between the heat medium flowing inside the tank and the air existing outside the tank, so that the air existing outside the tank is cooled. When the water vapor in the air condenses, condensed water is generated on the outer surface of the tank.

On the other hand, when the bracket described in Patent Document 1 is attached to such a heat absorber, if condensed water is generated on the outer surface of the tank, there is a possibility that the condensed water will accumulate between the outer surface of the tank and the bracket. . When this condensed water freezes, the bracket may be damaged due to its volumetric expansion.

The present disclosure has been made in view of these circumstances, and an object thereof is to provide a bracket for a heat exchanger that can suppress damage caused by freezing of condensed water.

A heat exchanger bracket that solves the above problem has a plurality of tubes (210) through which fluid flows, and a tank (22) connected to the ends of the plurality of tubes, and the tubes extend in a horizontal direction. The tank is installed so as to extend vertically, and heat exchange is performed between the air flowing between the tubes and the fluid flowing inside the tubes, so that the heat of the air can be transferred to the fluid. This bracket is attached to a cross-flow type heat exchanger (10) that operates as a heat absorber that absorbs heat. The bracket has a cylindrical part provided to extend vertically in the tank as a tank outer wall part (221), and a part provided to close a vertically lower opening of the tank outer wall part as a tank bottom wall part (221). 222), it includes a bottom wall (42) disposed to face the bottom wall of the tank, and a side wall (41) formed to extend from the bottom wall along the outer wall of the tank. Among the spaces divided by the bottom wall and side walls, the space where the tank is placed is defined as an internal space (Sa), and the space located on the opposite side of the internal space across the bottom wall and side walls is defined as an external space (Sb). At this time, communication portions (45, 46, 60) are formed in portions of the side walls adjacent to the bottom wall to communicate the internal space and the external space. When the surface of the side wall facing the tank is the inner surface, ribs (413, 414) projecting toward the tank are formed on the inner surface of the side wall. The outer surface of the rib located above in the vertical direction is inclined with respect to the horizontal direction.

According to this configuration, since the condensed water generated in the internal space of the bracket is discharged to the external space through the communication portion, damage to the bracket due to freezing of the condensed water can be suppressed.
Note that the above-mentioned means and the reference numerals in parentheses described in the claims are examples showing correspondences with specific means described in the embodiments to be described later.

According to the heat exchanger bracket of the present disclosure, damage caused by freezing of condensed water can be suppressed.

FIG. 1 is a perspective view showing a perspective structure of a heat exchanger according to a first embodiment. FIG. 2 is a front view showing the front structure around the tank of the heat exchanger of the first embodiment. FIG. 3 is a side view showing the side structure around the tank of the heat exchanger of the first embodiment. FIG. 4 is a cross-sectional view showing the cross-sectional structure taken along line IV-IV in FIG. FIG. 5 is a side view showing the side structure of the bracket of the first embodiment. FIG. 6 is a front view showing the front structure of the bracket of the first embodiment. FIG. 7 is a front view showing the front structure of the heat exchanger to which the bracket of the first embodiment is assembled. FIG. 8 is a cross-sectional view showing the cross-sectional structure along line VIII-VIII in FIG. FIG. 9 is a side view showing the side structure of the heat exchanger to which the bracket of the first embodiment is assembled. FIG. 10 is a front view showing the front structure of the bracket of the first modification of the first embodiment. FIG. 11 is a front view showing the front structure of a bracket according to a second modification of the first embodiment. FIG. 12 is a front view showing the front structure of a bracket according to a third modification of the first embodiment. FIG. 13 is a side view showing a side structure of a bracket according to a fourth modification of the first embodiment. FIG. 14 is a front view showing the front structure of the bracket of the second embodiment.

Hereinafter, embodiments of a bracket for a heat exchanger will be described with reference to the drawings. In order to facilitate understanding of the description, the same components in each drawing are denoted by the same reference numerals as much as possible, and redundant description will be omitted.
<First embodiment>
First, a first embodiment of a bracket for a heat exchanger will be described.

As shown in FIG. 1, the heat exchanger 10 includes a first heat exchange section 20 and a second heat exchange section 30. A heat medium such as LLC flows inside the first heat exchange section 20 and the second heat exchange section 30. Hereinafter, the heat medium flowing inside the first heat exchange section 20 will be referred to as a first heat medium, and the heat medium flowing inside the second heat exchange section 30 will be referred to as a second heat medium. In this embodiment, the first heat medium corresponds to the first fluid, and the second heat medium corresponds to the second fluid. The first heat exchange section 20 and the second heat exchange section 30 are made of aluminum alloy.

The first heat exchange section 20 includes a core section 21 and tanks 22 and 23.
The core portion 21 has a plurality of tubes 210 and side plates 211 and 212.
The tube 210 is made of a flat cylindrical member formed to extend in the direction indicated by arrow X in the figure. The internal space of the tube 210 serves as a flow path through which the first heat medium flows. The plurality of tubes 210 are arranged with predetermined gaps in the direction shown by arrow Z in the figure. Air flows through the gap between adjacent tubes 210, 210.

Hereinafter, the direction indicated by arrow X will also be referred to as "tube longitudinal direction X," and the direction indicated by arrow Z will also be referred to as "tube stacking direction Z."
As shown in FIG. 2, an outer fin 213 is arranged between adjacent tubes 210, 210. The outer fin 213 is a so-called corrugated fin formed by bending a thin metal plate into a wave shape. The outer fins 213 are 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 tubes 210 and the air.

As shown in FIG. 1, side plates 211 and 212 are arranged at both ends of the laminated structure of the tube 210 in the tube lamination direction Z, respectively. The side plates 211 and 212 are formed to extend in the tube longitudinal direction X. The side plates 211 and 212 are provided to reinforce the laminated structure of the tube 210.

As shown in FIG. 1, the tanks 22 and 23 are attached to both ends of the core portion 21 in the tube longitudinal direction X, respectively. The tanks 22 and 23 are made of cylindrical members formed to extend in the tube stacking direction Z. The tanks 22 and 23 are connected to both ends of the plurality of tubes 210, respectively. One end of each of the plurality of tubes 210 penetrates the outer wall of one tank 22 and is disposed in the internal space of the tank 22. The other end of each of the plurality of tubes 210 penetrates the outer wall of the other tank 23 and is disposed in the internal space of the tank 23. The tank 22 is provided with an inlet 220 for allowing the first heat medium to flow into the tank 22 . The tank 23 is provided with an outlet 230 for causing the first heat medium inside the tank to flow out to the outside.

In the first heat exchange section 20 , the first heat medium that has flowed into the tank 22 from the inlet 220 is distributed to the internal channels of the plurality of tubes 210 . When the first heat medium flows through each tube 210, heat exchange occurs 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 It is absorbed by the first heat medium. Therefore, the first heat exchange section 20 operates as a heat absorber. The first heat medium flowing through each tube 210 is collected in the tank 23 and then discharged from the outlet 230.

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 section 20 has a so-called cross-flow type structure in which the first heat medium flows horizontally.

The second heat exchange section 30 is arranged on the upstream side of the first heat exchange section 20 in the air flow direction Y. Therefore, the heat exchanger 10 has the first heat exchange section 20 and the second heat exchange section 30 arranged side by side in the air flow direction Y. The second heat exchange section 30 has substantially the same structure as the first heat exchange section 20. That is, the second heat exchange section 30 has a core section 31 and tanks 32 and 33. The core portion 31 is composed of a plurality of tubes 310 and side plates 311 and 312. The tank 32 is provided with an inlet 320 . The tank 33 is provided with an outlet 330. In the second heat exchange section 30, heat exchange is performed 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 transferred to the air. Dissipated. Therefore, the second heat exchange section 30 operates as a radiator.

The heat exchanger 10 includes brackets attached to the tank 22 of the first heat exchange section 20 and the tank 32 of the second heat exchange section 30, and the tank 23 of the first heat exchange section and the tank 33 of the second heat exchange section 30. It further includes a bracket to which it can be attached. Each bracket is used to fix the heat exchanger 10 to the vehicle body. Since the structure of each bracket is basically the same, the structure of the bracket attached to the tank 22 of the first heat exchange section and the tank 32 of the second heat exchange section 30 will be described below as a representative.

Note that hereinafter, the direction indicated by arrow Z will be referred to as "vertical direction Z," the direction indicated by arrow X will be referred to as "first horizontal direction X," and the direction indicated by arrow Y will be referred to as "second horizontal direction Y." ”. Moreover, the upper part of the vertical direction Z is called "vertical direction upper part Z1", and the lower part of the vertical direction Z is called "vertical direction lower part Z2".

Further, as shown in FIG. 3, the cylindrical portions of the tanks 22 and 32 that are formed to extend along the vertical direction Z are referred to as tank outer wall portions 221 and 321, respectively. Furthermore, portions of the tank outer wall portions 221 and 321 provided to close the vertically downward Z2 opening are referred to as tank bottom wall portions 222 and 322, respectively. Further, of the tank outer wall portions 221 and 321, the surfaces located on the outside in the second horizontal direction Y are referred to as side surfaces 221a and 321a, respectively. Further, as shown in FIG. 4, the surfaces of the tank outer walls 221 and 321 to which the tube 210 is connected are referred to as inner surfaces 221b and 321b, and the surfaces opposite to the inner surfaces 221b and 321b are referred to as FIG. As shown, the outer surfaces 221c and 321c are referred to as outer surfaces 221c and 321c.

As shown in FIGS. 5 and 6, the bracket 40 has a side wall 41 and a bottom wall 42. As shown in FIGS. The bracket 40 is made of resin. The resin used to form the bracket 40 is polyamide resin, polypropylene resin, polyacetal resin, or the like.
The side wall 41 has a bottom portion 410 and side portions 411, 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 that is formed to extend along the vertical direction Z. The side portions 411 and 412 are portions formed to extend in the second horizontal direction Y from both end surfaces of the bottom portion 410 in the width direction.

A plurality of ribs 413 are formed on the inner surface of one side portion 411 of the side wall 41 . As shown in FIG. 5, the rib 413 is formed to extend in a rectangular shape from one end in the first horizontal direction X to the other end on the inner surface of each side portion 411, 412. The plurality of ribs 413 are arranged at predetermined intervals in the vertical direction Z. As shown in FIG. 6, ribs 414 are similarly formed on the inner surface of the other side portion 412 of the side wall 41. As shown in FIG. The ribs 413 and 414 are arranged to face each other in the second horizontal direction Y.

As shown in FIGS. 5 and 6, the bottom wall 42 is provided to close the opening of the side wall 41 in the vertically downward direction Z2. Engagement pawls 43 and 44 are formed on the tip end surface 420 of the bottom wall 42 in the first horizontal direction X. As shown in FIG. The engaging pawl 43 is disposed on the distal end surface 420 of the bottom wall 42 closer to the side portion 411 than the center portion thereof. The engagement pawl 44 is disposed on the distal end surface 420 of the bottom wall 42 closer to the side portion 412 than the center portion thereof.

A mount pin 47 is formed on the bottom surface of the bottom wall 42 in the vertical direction lower Z2. The mount pin 47 is a portion that is inserted into a pin insertion portion provided in the vehicle body.
Hereinafter, of the space defined by the side wall 41 and the bottom wall 42 in the bracket 40, the space formed inside them will be referred to as an internal space Sa, and the space opposite to the internal space Sa with the side wall 41 and the bottom wall 42 in between will be referred to as an internal space Sa. The space formed on the side is called an external space Sb.

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 its outer surface. The through holes 45 and 46 are arranged in line with the engaging claws 43 and 44 in the first horizontal direction X, respectively. In this embodiment, the through holes 45 and 46 correspond to a communication portion that communicates the internal space Sa and the external space Sb of the bracket 40.

The bracket 40 shown in FIGS. 5 and 6 is attached to the tanks 22, 32 as shown in FIGS. 7-9. The tanks 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 in which the tanks 22 and 32 are arranged. When the bracket 40 is attached to the tanks 22 and 32 as shown in FIGS. 7 to 9, the side wall 41 of the bracket 40 faces the outer walls 221 and 321 of the tanks 22 and 32, and Wall 42 faces bottom wall portions 222, 322 of tanks 22, 32, respectively. More specifically, one side portion 411 of the side wall 41 of the bracket 40 is arranged to face the side surface 221a of the outer wall portion 221 of the tank 22. Further, the other side portion 412 of the side wall 41 of the bracket 40 is arranged to face the side surface 321a of the outer wall portion 321 of the tank 32. Further, the bottom portion 410 of the side wall 41 of the bracket 40 is arranged to face the outer surfaces 221c, 321c of the outer wall portions 221, 321 of the tanks 22, 32, respectively.

As shown in FIGS. 8 and 9, the side surface 221a of the tank 22 contacts the tip end 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 tank 32 comes into contact with the tip end surface of the plurality of ribs 414 formed on the ribs 412, so that the ribs 413 and 414 sandwich the tank 22 in the second horizontal direction Y. As a result, the bracket 40 is engaged with the tanks 22 and 32 in the second horizontal direction Y. Further, as shown in FIGS. 7 and 8, the engaging claws 43 and 44 of the bracket 40 engage with the inner surfaces 221b and 321b of the outer walls 221 and 321 of the tanks 22 and 32, respectively, so that the first horizontal Bracket 40 engages tanks 22, 32 in direction X. The bracket 40 is fixed to the tanks 22 and 32 by such an engagement structure. The heat exchanger 10 is fixed to the vehicle body via the bracket 40 by inserting and fixing the mount pin 47 of the bracket 40 into the pin insertion portion of the vehicle body.

On the other hand, in the heat exchanger 10, since the first heat exchange section 20 performs an endothermic operation, condensed water is likely to be generated on the outer peripheral surface of the tank 22. If condensed water is generated on the outer peripheral surface of the tank 22, the condensed water flows vertically downward Z2. Therefore, among the gaps formed between the bracket 40 and the tanks 22 and 32, condensed water tends to accumulate in the vertically lower part Z2. If this condensed water freezes and expands in volume, the bracket 40 may be damaged.

In this regard, in the bracket 40 of the present embodiment, condensed water accumulated in the gaps formed between the bracket 40 and the tanks 22, 32 is discharged into the external space Sb through the through holes 45, 46. Therefore, since condensed water is unlikely to accumulate in the gap formed between the bracket 40 and the tanks 22, 32, damage to the bracket 40 due to freezing of the condensed water can be suppressed.

According to the bracket 40 of the heat exchanger 10 of the present embodiment described above, the functions and effects shown in (1) to (4) below can be obtained.
(1) In a portion of the side wall 41 of the bracket 40 adjacent to the bottom wall 42, a through hole 45 that penetrates the side wall 41 from the inner surface to the outer surface serves as a communication portion that communicates the internal space Sa and the external space Sb of the bracket 40. , 46 are formed. According to this configuration, the condensed water formed in the gap between the bracket 40 and the tanks 22, 32, in other words, the condensed water formed in the internal space Sa of the bracket 40 passes through the through holes 45, 46 to the external space Sb. Therefore, damage to the bracket 40 due to freezing of the condensed water can be suppressed.

(2) The bracket 40 is manufactured by resin molding using a mold. In the bracket 40 of this embodiment, since the engaging claws 43 and 44 protrude into the internal space Sa of the bracket 40, after resin molding the side wall 41 and bottom wall 42 of the bracket 40 using a mold, the mold When pulling out the bracket 40 from the internal space Sa of the bracket 40, there is a possibility that the engaging claws 43 and 44 come into contact with the mold, making it impossible to pull out the mold. In this regard, the engaging claws 43 and 44 of the bracket 40 of this embodiment are provided on extensions of the through holes 45 and 46. According to this configuration, after the engaging claws 43, 44 are formed using the molds inserted into the through holes 45, 46, the molds can be pulled out from the through holes 45, 46. Therefore, the bracket 40 having the engaging claws 43 and 44 can be easily molded.

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

(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 tanks 22 and 32. According to this configuration, the bracket 40 can be fixed to the tanks 22, 32 by gripping the tanks 22, 32 with the ribs 413, 414. Moreover, when the condensed water generated in the internal space Sa of the bracket 40 flows toward the vertical direction downward Z2 and then hits the outer surfaces 413a and 413b of the ribs 413 and 414 in the vertical direction upward Z1, the condensed water flows into the ribs 413 and 414. The water flows in the first horizontal direction X along the outer surfaces 413a and 413b of. Thereby, condensed water can also be drained from the opening in the first horizontal direction X in the bracket 40, so that the drainability of condensed water can be further improved.

(First modification)
Next, a first modification of the bracket 40 of the first embodiment will be described.
As shown in FIG. 10, an opening 60 is formed in the bracket 40 of this modification instead of the through holes 45 and 46. The opening 60 is formed in the bottom portion 410 of the side wall 41 of the bracket 40. The cross-sectional shape of the opening 60 perpendicular to the first horizontal direction X is rectangular. The opening 60 is formed to extend vertically upward Z1 from a portion of the bottom side 410 adjacent to the bottom wall 42 . The opening 60 is provided on the extension line of the engaging claws 43 and 44 in the first horizontal direction X.

The bracket 40 having such a structure can also obtain the same or similar functions and effects as the bracket 40 of the first embodiment.
(Second modification)
Next, a second modification of the bracket 40 of the first embodiment will be described.

As shown in FIG. 11, a plurality of through holes 48 and 49 are further formed in the bracket 40 of this modification. The through holes 48 and 49 are formed to penetrate the bottom portion 410 of the side wall 41 of the bracket 40 from the inner surface to the outer surface. The plurality of through holes 48 are arranged at positions shifted upward in the vertical direction Z1 with respect to the through holes 45, and are arranged at predetermined intervals in the vertical direction Z. The plurality of through holes 48 are arranged to face the outer surface 221c of the tank 22 in the first horizontal direction X shown in FIG. The plurality of through holes 49 are arranged at positions shifted upward in the vertical direction Z1 from the through holes 46, and are arranged at predetermined intervals in the vertical direction Z. The plurality of through holes 49 are arranged so as to face the outer surface 321c of the tank 32 in the first horizontal direction X shown in FIG.

If 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 condensed water discharge performance can be further improved.
Further, the through holes 48 and 49 are arranged at positions shifted from the ribs 413 and 414 in the vertical direction Z. According to this configuration, condensed water existing between adjacent ribs 413, 413 in the vertical direction Z is discharged through the through hole 48, and condensed water existing between adjacent ribs 414, 414 in the vertical direction Z is discharged through the through hole 49. Therefore, the discharge performance of condensed water can be further improved.

(Third modification)
Next, a third modification of the bracket 40 of the first embodiment will be described.
As shown in FIG. 12, in the bracket 40 of this modification, the plurality of through holes 48 and 49 are arranged at positions overlapping the ribs 413 and 414 in the vertical direction Z. As shown in FIG. According to this configuration, condensed water flowing along the outer surfaces 413a, 413b of the ribs 413, 414 is discharged into the external space Sb through the through holes 48, 49. Therefore, the discharge performance of condensed water can be further improved.

(Fourth modification)
Next, a fourth modification of the bracket 40 of the first embodiment will be described.
As shown in FIG. 13, in the bracket 40 of this modification, the cross-sectional shape of the rib 413 perpendicular to the second horizontal direction Y is trapezoidal. The outer surface 413a of the rib 413 located in the upper direction Z1 in the vertical direction is inclined with respect to the second horizontal direction Y so as to move downward in the vertical direction Z2 toward the opening of the bracket 40. Ribs 414 are similarly formed.

According to such a configuration, the condensed water that has reached the outer surfaces 413a and 413b of the ribs 413 and 414 easily flows toward the opening of the bracket 40 along the outer surfaces 413a and 413b, so that the condensed water can be drained more easily. can be improved. Note that the shape of the ribs 413 and 414 is not limited to a trapezoid, but may be triangular.

<Second embodiment>
Next, the bracket 40 of the second embodiment will be explained. Hereinafter, differences from the bracket 40 of the first embodiment will be mainly described.
As shown in FIG. 14, in the bracket 40 of this embodiment, a through hole 50 is formed in the bottom wall 42. As shown in FIG. The through hole 50 is formed to penetrate the bottom wall 42 from its inner surface to the outer surface, and also to penetrate the central portion of the mount pin 47 .

Even with the bracket 40 of this embodiment described above, it is possible to obtain the same or similar functions and effects as those shown in (1) above.
<Other embodiments>
Note that each embodiment can also be implemented in the following forms.

- Condensed water is particularly likely to be generated in the tank 22 of the first heat exchange section 20 that operates as a heat absorber than in the tank 32 of the second heat exchange section 30 that operates as a heat sink. 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 configuration, it is possible to ensure drainage of condensed water.

- In the bracket 40 of the second embodiment, the through hole 50 may be formed so as to pass through a portion of the bottom wall 42 that is different from the portion where the mount pin 47 is provided.
- The present disclosure is not limited to the above specific examples. Design changes made by those skilled in the art to the specific examples described above are also included within the scope of the present disclosure as long as they have the characteristics of the present disclosure. The elements included in each of the specific examples described above, as well as their arrangement, conditions, shapes, etc., are not limited to those illustrated, and can be changed as appropriate. The elements included in each of the specific examples described above can be appropriately combined as long as no technical contradiction occurs.

Sa: Internal space Sb: External space 10: Heat exchanger 20: First heat exchange section 22: Tank 30: Second heat exchange section 40: Bracket 41: Side wall 42: Bottom wall 43: Engagement claws 45, 46: Penetration Hole (communication part)
47: Mount pin 48, 49: Through hole (communication part)
50: Through hole (communication part)
60: Opening (communication part)
210: Tube 221: Tank outer wall section 222: Tank bottom wall section 410: Bottom section 411, 412: Side section 413, 414: Rib

Claims (10)

It has a plurality of tubes (210) through which fluid flows, and a tank (22) connected to the ends of the plurality of tubes, the tubes being provided so as to extend horizontally, and the tank being vertically extending. A heat absorber that is provided to extend in the direction and absorbs heat of the air into the fluid by performing heat exchange between the air flowing between the plurality of tubes and the fluid flowing inside the tubes. A bracket attached to a cross-flow type heat exchanger (10) that operates as a
A cylindrical portion of the tank provided to extend in the vertical direction is referred to as a tank outer wall portion (221), and a portion provided to close a vertically downward opening of the tank outer wall portion is referred to as a tank bottom wall portion (222). ), when
a bottom wall (42) arranged to face the tank bottom wall;
a side wall (41) formed to extend from the bottom wall along the tank outer wall,
Among the spaces divided by the bottom wall and the side walls, the space where the tank is arranged is defined as an internal space (Sa), and the space located on the opposite side of the internal space across the bottom wall and the side walls is defined as an external space. When space (Sb) is
A communication portion (45, 46, 60) for communicating the internal space and the external space is formed in a portion of the side wall adjacent to the bottom wall ,
When the surface of the side wall facing the tank is the inner surface,
Ribs (413, 414) protruding toward the tank are formed on the inner surface of the side wall,
The outer surface of the rib located above in the vertical direction is inclined with respect to the horizontal direction.
Heat exchanger bracket. The bracket for a heat exchanger according to claim 1, wherein the communication portion is a through hole (45, 46) formed to penetrate a portion of the side wall adjacent to the bottom wall from the inner surface to the outer surface. further comprising an engaging claw (43) that engages with the tank,
The bracket for a heat exchanger according to claim 2, wherein the engaging claw is arranged on an extension line of the through hole. When the fluid is the first fluid,
The heat exchanger has a first heat exchange section (20) through which the first fluid flows and a second heat exchange section (30) through which the second fluid flows, which are arranged side by side in the air flow direction. hand,
The first heat exchange section operates as the heat absorber,
The second heat exchange section operates as a radiator that radiates heat of the second fluid to the air by exchanging heat between the air flowing outside the second fluid and the second fluid,
The bracket for a heat exchanger according to any one of claims 1 to 3, wherein the communication part is provided so as to face the tank of the first heat exchange part. The side wall includes a bottom part (410) formed to extend along the outer wall of the tank, and a side part (411) formed to extend in the longitudinal direction of the tube from both widthwise ends of the bottom wall. , 412), and the cross-sectional shape of the side wall perpendicular to the vertical direction is concave,
The bracket for a heat exchanger according to any one of claims 1 to 4, wherein the communication portion is formed at the bottom portion of the side wall. The bracket for a heat exchanger according to any one of claims 1 to 5, wherein the side wall further includes a plurality of communication portions (48, 49) that communicate the internal space and the external space. The bracket for a heat exchanger according to any one of claims 1 to 6, wherein the rib is formed at a position offset from the communication portion in the vertical direction. The bracket for a heat exchanger according to any one of claims 1 to 6, wherein the rib is formed at a position that overlaps the communication portion in the vertical direction. The bracket for a heat exchanger according to claim 8 , wherein the rib is formed in a trapezoidal or triangular shape. The bracket for a heat exchanger according to any one of claims 1 to 9 , wherein the bottom wall and the side wall are made of any one of polyamide resin, polypropylene resin, and polyacetal resin.

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