JP5966540B2 - Vehicle heat exchanger - Google Patents

Description

The present invention relates to a heat exchanger for a vehicle which is disposed behind the bumper.

  Generally, a heat exchanger such as a radiator or an air conditioning condenser is disposed behind the bumper. For this reason, for example, when the vehicle collides with an obstacle, even in the case of a light collision where the degree of the collision is light, the bumper may be deformed rearward and the heat exchanger (particularly the fin) may be greatly damaged. Therefore, conventionally, a bumper is known that prevents damage to the fins of the heat exchanger when the vehicle collides lightly with an obstacle and the bumper deforms backward (see, for example, Patent Document 1).

  In Patent Document 1, a rib is protruded from the inside of the bumper toward the shock absorbing material provided between the radiator and the condenser, and the rib hits the shock absorbing material at the time of a light vehicle collision, so that the bumper has a high rigidity portion. Prevents from hitting the fins.

JP 2001-138839 A

  However, in the configuration described in Patent Document 1, when the bumper is deformed rearward and the rib collides with the cushioning material, a bending force acts on the entire heat exchanger, and even when the vehicle is lightly collided, The entire heat exchanger may be damaged, such as distortion. As a result, the repair cost is high, and in some cases, the heat exchanger needs to be replaced.

The present invention provides the above view of the problems, a vehicle heat exchanger capable of preventing the entire damage the heat exchanger at the time of a light collision of the vehicle.

In order to solve the above-described problems, a vehicle heat exchanger according to the present invention is a vehicle heat exchanger (100) disposed behind a bumper (1), and includes a heat exchanger body (10, 20) and A support portion (15, 16) for supporting the heat exchanger body (10, 20) from a vehicle; and a bumper projecting from the heat exchanger body (10, 20) toward the bumper (1). A protective bracket (40) to which an impact force acts from the bumper (1) when deformed backward in (1), and the support portions (15, 16) have an impact force that acts on the protective bracket (40). The protective bracket (40) is made of a hard resin and is composed of a collided part (43) and an arm part (42), and the collided part (43 ) Is wider in the left-right direction than the arm part (42) Characterized by wherein there.

  Thereby, at the time of the light collision of a vehicle, the impact force from a bumper acts on the support part of a heat exchanger main body via a protective bracket, and a support part fractures | ruptures at a weak part. For this reason, damage to the entire heat exchanger can be prevented, and the repair cost is low. That is, the heat exchanger body can be reused as it is simply by repairing the support portion.

Also comprises the bumpers (1), the bumper (1) heat exchanger for a vehicle, which is disposed behind the and (100). The vehicle heat exchanger (100) includes a heat exchanger body (10, 20) and support portions (15, 16) that support the heat exchanger body (10, 20) from the vehicle. The bumper (1) projects toward the peripheral edge (22) of the heat exchanger body (10, 20), and provides a protective bracket that gives an impact force to the peripheral edge (22) when the bumper (1) is deformed rearward. (400). Furthermore, the support part (15, 16) has a fragile part (16a) that is broken by an impact force applied to the peripheral part (22).

  Thereby, at the time of the light collision of a vehicle, the impact force from a bumper acts on the peripheral part of a heat exchanger main body via a protective bracket, and also acts on a support part. Since the peripheral portion of the heat exchanger body is generally high in rigidity, the heat exchanger body is not deformed and the support portion is broken at the fragile portion. For this reason, damage to the entire heat exchanger can be prevented, and the repair cost is low.

  In addition, the code | symbol attached | subjected above is an example which shows a corresponding relationship with the specific embodiment as described in embodiment mentioned later.

It is a top view showing a schematic structure of a vehicle front structure including a heat exchanger for vehicles concerning an embodiment of the present invention. FIG. 2 is an II view of FIG. 1. It is a perspective view of the heat exchanger unit of FIG. It is a side view which shows the support structure of the heat exchanger unit of FIG. It is a principal part enlarged view of FIG. FIG. 6 is a sectional view taken along line VI-VI in FIG. 2. It is a figure explaining operation | movement of the heat exchanger for vehicles which concerns on embodiment of this invention. It is a figure which shows the replacement | exchange procedure of the pin of the vehicle heat exchanger which concerns on embodiment of this invention. It is a figure which shows the replacement | exchange procedure of the pin of the vehicle heat exchanger which concerns on embodiment of this invention. It is a figure which shows the replacement | exchange procedure of the pin of the vehicle heat exchanger which concerns on embodiment of this invention. It is a top view which shows the structure of the vehicle front structure which concerns on one form.

  Hereinafter, with reference to FIGS. 1-9, embodiment of the heat exchanger for vehicles by this invention is described. FIG. 1 is a plan view (viewed from above) showing a schematic configuration of a vehicle front structure including a vehicle heat exchanger according to an embodiment of the present invention, and FIG. (View from the side of the vehicle). In the following, front and rear, left and right and up and down directions are defined with reference to the driver's seat occupant as shown in the figure, and the configuration of each part will be described according to this definition. The front / rear, left / right and up / down directions correspond to the length, width and height directions of the vehicle, respectively. The present embodiment is intended for a right-hand drive vehicle whose driver's seat is on the right side of the vehicle.

  As shown in FIGS. 1 and 2, the vehicle front structure includes a bumper 1 disposed in the front portion of the vehicle and a heat exchanger unit 100 disposed in the front portion in the engine room 2 behind the bumper 1. The bumper 1 is a shock absorber that reduces a shock at the time of a vehicle collision, and extends from the left front part of the vehicle to the right front part, for example, using a resin or the like as a constituent material. The bumper 1 has a skeleton shape having a predetermined thickness in the front-rear direction and the vertical direction, and a gap is left between the bumper 1 and the heat exchanger unit 100. In the figure, for the sake of convenience, the bumper 1 is shown inside the front surface 3 of the vehicle, but the bumper 1 is actually exposed on the front surface 3. Although not shown, a front grille is provided on the front surface 3 of the vehicle so as to face the heat exchanger unit 100, and traveling wind is taken into the engine room 2 via the front grille.

  FIG. 3 is a perspective view of the heat exchanger unit 100 (viewed from the diagonally left rear). As shown in FIGS. 1 to 3, the heat exchanger unit 100 includes a radiator 10 that exchanges heat between engine cooling water and cooling air (outside air) to cool the engine cooling water, and a refrigerant that circulates in the vehicle refrigeration cycle. And a condenser 20 that cools the refrigerant by exchanging heat with the cooling air, and a blower 30 that blows the cooling air to the radiator 10 and the condenser 20. The condenser 20 is disposed in front of the radiator 10, and the blower 30 is disposed behind the radiator 10. The condenser 20 and the blower 30 are respectively coupled to the radiator 10, and these constitute an integral heat exchanger unit 100. In addition, although illustration is abbreviate | omitted, the clearance gap which accept | permits the displacement to the back of the heat exchanger unit 100 between the heat exchanger unit 100 and the components (for example, engine) arrange | positioned behind the heat exchanger unit 100 is shown. Is provided.

  The radiator 10 has a rectangular core portion 11 and tanks 12 (radiator tanks) provided on both the left and right sides of the core portion 11 and is arranged in a vertical posture. The core portion 11 communicates with the left and right tanks 12 and has a plurality of tubes through which the cooling water flowing out from the engine flows, and a wave joined to the outer surface of each tube to promote heat exchange between the cooling water and the cooling air. It has plate-like fins, and cooling air passes from the front surface to the rear surface of the core portion 11. Of the left and right tanks 12, engine cooling water flows into the right tank 12, and engine cooling water flows out from the left tank 12.

  The capacitor 20 includes a rectangular core portion 21 disposed facing the core portion 11 of the radiator 10, and tanks 22 (capacitor tanks) provided on both the left and right sides of the core portion 21. The core portion 21 includes a plurality of tubes that communicate with the left and right tanks 22 and through which the refrigerant flows, and corrugated fins that are joined to the outer surface of each tube and promote heat exchange between the refrigerant and the cooling air. The cooling air passes from the front surface to the rear surface of the core portion 21. Of the left and right tanks 22, the refrigerant flows into the right tank 22, and the refrigerant flows out from the left tank 22. A gas-liquid separator 25 that performs gas-liquid separation of the refrigerant is integrally joined to the left end of the left tank 22.

  The left and right radiator tanks 12 are particularly rigid in the heat exchanger unit 100. The upper and lower ends of the left and right radiator tanks 12 are respectively provided with connecting portions 13 for attaching capacitors, and the upper and lower ends of the left and right capacitor tanks 22 are attached to the connecting portions 13, respectively. The upper and lower ends of the left and right radiator tanks 12 are respectively provided with connecting portions 14 for attaching fan shrouds, and fan shrouds 31 are attached to the connecting portions 14. As shown in FIG. 3, the fan shroud 31 is formed with a circular opening 32, and the blower 30 is disposed in the opening 32. An electric motor 33 for rotating the blower is disposed behind the blower 30, and the electric motor 33 is supported by the fan shroud 31 via a stay 34. When the blower 30 is rotated by driving the electric motor 33, the cooling air is sucked toward the blower 30, and the cooling air passes through the condenser 20 and the radiator 10.

  FIG. 4 is a side view (partially sectional view) showing a support structure of the heat exchanger unit 100. As shown in FIGS. 1 and 4, support brackets 15 are provided at the upper and lower ends of the left and right radiator tanks 12, respectively. The upper support bracket 15 protrudes outward and upward in the left-right direction, and the lower support bracket 15 protrudes outward and downward in the left-right direction. The upper end surface of the upper support bracket 15 and the lower end surface of the lower support bracket 15 are respectively formed flat, and pins 16 project from the respective surfaces upward and downward. The support bracket 15 and the pin 16 are configured by integral molding using resin as a constituent material.

  As shown in FIGS. 3 and 4, each pin 16 is provided with a vibration isolating material 17 made of an elastic material such as rubber. The lower vibration isolator 17 is accommodated in a recess 4 a provided in the lower vehicle frame 4, and the upper vibration isolator 17 is accommodated in a recess 6 a of the mounting bracket 6 attached to the upper vehicle frame 5. ing. That is, the heat exchanger unit 100 is sandwiched between the recess 4a of the vehicle frame 4 and the recess 6a of the mounting bracket 6 via the pin 16 and the vibration isolator 17, and is elastically supported by the vehicle frames 4 and 5. Yes. The recesses 4a and 6a can also be configured by through holes or notches corresponding to the shape of the vibration isolator 17.

  FIG. 5 is an enlarged view of the main part of FIG. 4 showing the configuration of the upper pin 16. The lower pin 16 has the same configuration as the upper pin 16. As shown in FIG. 5, the pin 16 has a cylindrical shape as a whole, and a reduced diameter portion 16a having a smaller outer diameter than other portions is formed at the base end portion. The cross-sectional area of the pin 16 is minimized at the reduced diameter portion 16a, and the support rigidity of the heat exchanger unit 100 with respect to the load F from the front is minimized at the reduced diameter portion 16a. For this reason, when an impact force is applied to the heat exchanger unit 100 from the front, the pin 16 is broken at the reduced diameter portion 16a before other portions are plastically deformed.

  As shown in FIGS. 1 to 3, as a characteristic configuration of the present embodiment, a protection bracket 40 for protecting the heat exchanger unit 100 is attached to the left end portion of the heat exchanger unit 100. 6 is a cross-sectional view taken along line VI-VI in FIG. As shown in FIG. 6, the protective bracket 40 includes an attachment part 41 attached to the left side surface of the radiator tank 12, an arm part 42 extending forward from the attachment part 41 so as to bypass the gas-liquid separator 25, And an impacted part 43 provided at the front end of the arm part 42. The protective bracket 40 is a molded product made of, for example, hard resin, and the thickness in the vertical direction is constant.

  The radiator tank 12 is provided with screw holes 12a at two positions, corresponding to the mounting position of the protective bracket 40. Through holes 41 a are opened at two locations in the upper and lower portions of the mounting portion 41, and the bolts 45 penetrating the through holes 41 a are screwed into the screw holes 12 a, so that the protective bracket 40 is attached to the radiator tank 12. Note that a flat seat surface may be provided on the surface of the radiator tank 12 and the protective bracket 40 may be attached to the seat surface. The mounting position of the protective bracket 40 in the vertical direction corresponds to the position of the bumper 1. In this embodiment, the protective bracket 40 is mounted at the center in the vertical direction of the radiator tank 12 as shown in FIG. .

  As shown in FIG. 6, the colliding part 43 has a rectangular parallelepiped shape that is wider in the left-right direction than the arm part 42 and has a predetermined length in the front-rear direction. The colliding part 43 is located in front of the gas-liquid separator 25, protrudes forward from the front surface of the capacitor 20, and the front surface of the colliding part 43 faces the rear surface of the bumper 1. Accordingly, when the bumper 1 is deformed rearward, the bumper 1 comes into contact with the front surface of the collision target portion 43 in the heat exchanger unit 100.

  Main operations of the vehicle heat exchanger according to the present embodiment will be described. In a right-hand drive vehicle with the driver's seat on the right side, the left front corner of the vehicle becomes a blind spot from the driver's seat, and there is a risk of accidentally causing a light collision with an obstacle. The light collision is a light collision that does not cause great damage to the vehicle and the occupant. For example, a light collision occurs during low speed traveling such as when entering a garage. When the left front corner of the vehicle collides with an obstacle in this way, the bumper 1 is deformed rearward as indicated by a dotted line A in FIG. As a result, the bumper 1 comes into contact with the front surface of the impacted portion 43 of the protective bracket 40, and an impact force F from the bumper 1 to the rear acts on the protective bracket 40.

  The rearward impact force F acting on the protective bracket 40 is transmitted to the pin 16 via the radiator tank 12 and the support bracket 15, and a bending force acts on the pin 16. At this time, a bending force larger than that of the right pin 16 acts on the left pin 16, and the left and upper pins 16 break at the reduced diameter portion 16a having the smallest support rigidity.

  As a result, as shown in FIG. 7, the heat exchanger unit 100 rotates rearward with the right pin serving as 16 fulcrums, and the left portion of the heat exchanger unit 100 is displaced rearward. As a result, the impact force acting on the heat exchanger unit 100 can be reduced, and deformation of the entire heat exchanger unit can be prevented. That is, when the pin 16 is not broken, the impact force F from the bumper 1 acts as a bending force on the entire heat exchanger unit via the protective bracket 40, so that the capacitor 20 and the radiator 10 are distorted, and the heat exchanger unit. The whole can be damaged. In this regard, in the present embodiment, the pin 16 is broken and the heat exchanger unit 100 is retracted rearward, so that the prestige of the entire heat exchanger unit can be prevented.

  Thereafter, in order to mount the heat exchanger unit 100 on the vehicle again, the upper and lower pins 16 on the left side may be replaced. The exchange of the pins 16 is performed as follows, for example. 8A to 8C are diagrams illustrating a procedure for replacing the lower pin 16. The upper pin 16 is also replaced in the same procedure. FIG. 8A is a diagram illustrating a state of the pin mounting portion immediately after the pin 16 is broken. In FIG. 8A, the pin 16 before breaking is indicated by a dotted line. As shown in FIG. 8A, the support bracket 15 is provided with a cavity 18 having a side surface opened in advance above the pin 16. The inner surface of the cavity 18 is formed in a planar shape.

  When replacing the pin 16 from the state of FIG. 8A, first, the remaining portion 16b of the pin 16 is removed, and the lower end surface of the support bracket 15 is finished flat. Next, as shown in FIG. 8B, a through hole 19 is drilled from the lower end surface of the support bracket 15 toward the cavity 18. Finally, as shown in FIG. 8C, the nut 161 is inserted into the cavity 18 from the side, and the exchange pin 160 and the through hole are inserted with the cylindrical exchange pin 160 in contact with the lower end surface of the support bracket 15. A bolt 162 is inserted into 19 and screwed into the nut 161. The nut 161 has, for example, a rectangular outer shape, and when the bolt 162 is screwed, the side surface of the nut 161 abuts on the side surface of the cavity 18, so that the nut 161 can be prevented from rotating.

  As described above, the replacement pin 160 can be attached to the support bracket 15. The exchange pin 160 has the same diameter as that of the 16 pin before breaking, and the heat exchanger unit 100 can be mounted on the vehicle using the same cushioning material 17 (FIG. 4) as before breaking. In addition, a weak part may be provided in the exchange pin 160, and the exchange pin 160 may be broken at the time of another light collision.

According to this embodiment, the following effects can be obtained.
(1) The pin 16 that supports the heat exchanger unit 100 is provided with a reduced diameter portion 16a, and a protective bracket 40 is provided so as to project from the heat exchanger unit 100 toward the bumper 1 so that the bumper 1 during a light collision of the vehicle The impact force F is applied to the protective bracket 40. Thereby, since the pin 16 is broken and the heat exchanger unit 100 is displaced rearward at the time of a light vehicle collision (FIG. 7), the impact force acting on the heat exchanger unit 100 can be reduced. Therefore, damage to the entire heat exchanger unit, such as distortion of the capacitor 20 and the radiator 10, can be prevented, and the repair cost is low.

(2) Considering the high possibility of a light collision at the left front corner of the right-hand drive vehicle, the protective bracket 40 is attached to the radiator tank 12 at the left end of the radiator 10. Therefore, the position where the protective bracket 40 is provided corresponds to the actual vehicle collision position, and the protective bracket 40 can function effectively. Moreover, since the protection bracket 40 is attached to the radiator tank 12 having high rigidity, the protection bracket 40 can be firmly supported.

(3) Since the reduced diameter portion 16a is provided on the pin 16 protruding from the upper and lower end surfaces of the support bracket 15, the pin 16 becomes weak at the reduced diameter portion 16a and before other parts are plastically deformed by the impact force F from the bumper 1. The pin 16 can be broken. Therefore, damage to components other than the pin 16 can be prevented.

(4) After the pin 16 is broken by the impact force F acting on the protective bracket 40, the pin 16 is removed, and the replacement pin 610 can be attached to the same location as the pin 16. Therefore, after the light vehicle collision, the pins 16 can be replaced and the same heat exchanger unit 100 can be mounted on the vehicle again.

(Modification)
In the said embodiment, the protection bracket 40 was provided in the heat exchanger unit 100, and it was made to protect the heat exchanger unit 100 at the time of a vehicle light collision. Instead, a protective bracket may be provided on the bumper 1 to protect the heat exchanger unit 100. FIG. 9 is a plan view showing an example of such a vehicle front structure. As shown in FIG. 9, the bumper 1 is provided with a protective bracket 400 projecting rearward, facing the capacitor tank 22 on the left side. As long as the protective bracket 400 is provided integrally with the bumper 1, it may be formed integrally with the bumper 1 or may be attached to the bumper 1 with a bolt or the like.

  In FIG. 9, when the bumper 1 is deformed rearward due to a light vehicle collision, the rear end portion of the protective bracket 400 collides with the capacitor tank 22, and an impact force F acts on the capacitor tank 22. This impact force F is transmitted to the pin 16 via the connecting portion 13, the oil tank 12 and the support bracket 15, and a bending force acts on the pin 16. Here, since the capacitor tank 22 and the connecting portion 13 are higher in rigidity than the pin 16, the pin 16 is broken at the reduced diameter portion 16a without plastic deformation. Thereby, like FIG. 7, the heat exchanger unit 100 can be displaced backward, and damage to the whole heat exchanger unit can be prevented.

  In FIG. 9, the protective bracket 400 protrudes toward the peripheral edge of the condenser 20 (condenser tank 22), but protrudes toward the other peripheral edge of the heat exchanger body (for example, the gas-liquid separator 25). You may make it install. That is, since the peripheral portion of the heat exchanger body is generally high in rigidity, the protective bracket 400 is brought into contact with the peripheral portion and an impact force is applied to the peripheral portion at the time of a light vehicle collision without damaging the heat exchanger main body. The pin 16 can be broken, and a desired operation can be obtained.

  In the above embodiment, the protective bracket 40 is attached to the radiator tank 12, but it may be attached to another tank portion such as the capacitor tank 22 at the side end in the vehicle width direction. Moreover, you may make it attach to other parts with high rigidity instead of a tank part. A connecting portion 13 that connects the radiator tank 12 and the capacitor tank 22 may be provided at a position (height) corresponding to the bumper 1, and a protective bracket 40 may be attached to the connecting portion 13. That is, if the protective bracket 40 is provided to face the bumper 1 so as to collide with the bumper 1 when the bumper 1 is deformed rearward, the mounting position of the protective bracket 40 is not limited to that described above.

  In the above embodiment, the protective bracket 40 is attached to the central portion in the vertical direction of the heat exchanger unit 100. However, depending on the positional relationship with the bumper 1, the protective bracket 40 is protected not on the central portion in the vertical direction but on the top or bottom of the heat exchanger unit 100. A bracket 40 may be attached. In the above embodiment, the protective bracket 40 is provided on the left side of the vehicle (passenger seat side), but may be provided on the right side of the vehicle (driver's seat side) or on both the left and right sides. A plurality of protective brackets 40 supported from the heat exchanger unit 100 or a plurality of protective brackets 400 supported from the bumper 1 may be provided between the bumper 1 and the heat exchanger unit 100 at different positions. That is, the arrangement and number of the protective brackets 40 and 400 are not limited to those described above.

  Although the protection bracket 40 is fixed to the heat exchanger unit 100 with the bolt 45 (FIG. 6), for example, the tanks 12 and 22 are sandwiched in the front-rear direction and fixed to an arbitrary position of the tanks 12 and 22. This bracket may be provided, and the protective bracket 40 may be attached to the bracket. Although the protective bracket 40 has the attachment part 41, the arm part 42, and the colliding part 43, the structure of the protective bracket 40 is not restricted to this. In the above embodiment, the protective bracket 40 is configured to bypass the gas-liquid separator 25. However, if it is not necessary to bypass, the arm portion 42 is unnecessary.

  In the above embodiment, the heat exchanger main body (the radiator 10 and the condenser 20) is removed from the vehicle frames 4 and 5 by the pins 16 having the reduced diameter portions 16a (fragile portions) protruding from the upper end surface and the lower end surface of the support bracket 15, respectively. Although it supported, the structure of a support part is not restricted to this. Although the heat exchanger body is supported from the vehicle frames 4 and 5, it can also be supported from other parts fixed in the engine room 2. That is, as long as the heat exchanger body is supported from the vehicle, the support structure may be other than that described above. The pins 16 are provided above and below the heat exchanger bodies 10 and 20 via the support bracket 15, but the support bracket 15 is omitted and the pins 16 are directly connected from the upper end surface and the lower end surface of the heat exchanger body. You may make it project.

  The configuration of the fragile portion provided in the support portion is not limited to that described above. For example, a stress concentrating part such as a notch may be provided on the peripheral surface of the pin 16 to constitute a weak part. After removing the broken pins 16b from the upper and lower end surfaces of the support bracket 15, the cylindrical replacement pin 160 is attached with the bolt 162 and the nut 161 (FIGS. 8A to 8C). Not exclusively. That is, as long as the heat exchanger main body 10 or 20 is supported by being attached to the broken portion of the pin 16, the exchange pin 160 may have any configuration.

  In the said embodiment, although the heat exchanger main body was comprised by the heat exchanger unit 100 which arranged the radiator 10 and the capacitor | condenser 20 in the front-back direction, and was integrated, the heat exchanger main body to which this invention is applied is not restricted to this. Absent. The present invention is similarly applied even when the radiator 10 or the condenser 20 is disposed alone behind the bumper 1 or when another heat exchanger body is disposed behind the bumper 1. Can do. The radiator 10 and the condenser 20 are arranged side by side in the left-right direction, and the present invention can be similarly applied to either or both of the heat exchanger bodies (the radiator 10 and the condenser 20). Although the radiator tank 12 and the condenser tank 22 are provided on the left and right sides of the radiator 10 and the condenser 20, respectively, one or both of the tanks 12 and 22 may be provided on the upper and lower sides. Although the above embodiment is applied to a right-hand drive vehicle, it can be applied to a left-hand drive vehicle in the same manner.

  The above description is merely an example, and the present invention is not limited to the above-described embodiments and modifications unless the features of the present invention are impaired. The constituent elements of the embodiment and the modified examples include those that can be replaced while maintaining the identity of the invention and that are obvious for replacement. That is, other forms conceivable within the scope of the technical idea of the present invention are also included in the scope of the present invention. Moreover, it is also possible to arbitrarily combine one or more of the above-described embodiments and modified examples.

1 Bumper 10 Radiator 15 Support bracket 16 Pin 16a Reduced diameter portion 20 Capacitor 22 Capacitor tank 40 Protection bracket 100 Heat exchanger unit 400 Protection bracket

Claims (5)

A vehicle heat exchanger (100) disposed behind a bumper (1),
A heat exchanger body (10, 20);
Support portions (15, 16) for supporting the heat exchanger body (10, 20) from a vehicle;
A protective bracket (40) projecting from the heat exchanger body (10, 20) toward the bumper (1) and receiving an impact force from the bumper (1) when the bumper (1) is deformed rearward. And
The support portion (15, 16) has a fragile portion (16a) that is broken by an impact force acting on the protective bracket (40),
The protective bracket (40) is made of a hard resin and includes a collided part (43) and an arm part (42). The collided part (43) is more laterally located than the arm part (42). A vehicular heat exchanger characterized by being wide. The vehicle heat exchanger according to claim 1,
The heat exchanger body (10) has a tank portion (12) at a side end in the vehicle width direction,
The vehicle heat exchanger, wherein the protective bracket (40) is attached to the tank portion (12). The vehicle heat exchanger according to claim 1 or 2,
The support portion (15, 16) includes a pin (16) having a reduced diameter portion (16a) protruding above and below the heat exchanger body (10, 20), respectively. Heat exchanger. The vehicle heat exchanger according to claim 3,
After the pin (16) broken by the impact force acting on the protective bracket (40) is removed, the exchange pin (160) attached to the broken portion and supporting the heat exchanger body (10, 20) The vehicle heat exchanger further comprising: The vehicle heat exchanger according to claim 1,
The vehicle heat exchanger, wherein the colliding part (43) has a rectangular parallelepiped shape.

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