Heat exchange device

Abstract

To improve heat exchange performance of a heat exchanger.SOLUTION: A suction port 29 provided in a first surface portion side 20S which is one of 20S surface portions surrounding the internal space side 20F and configured to take air into the internal space from the outside, and a discharge port 30 provided in a second surface portion side 20S different from the first surface portion side 20F among the 20R surface portions surrounding the internal space side wall and configured to discharge the air taken in from the suction port from the internal space to the outside, At least a part of the suction port 29 is located in front of the discharge port 30 when viewed from the D2 in the vehicle-width direction, and at least a part of the heat exchangers 21 is located between the suction port 29 and the discharge port 30 when viewed from the D1 in the front-rear direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a heat exchange device that houses a heat exchanger that exchanges heat with a vehicle component. [Background technology]

[0002] Vehicles are equipped with heat exchangers that exchange heat with vehicle components. For example, vehicles powered by an engine are equipped with heat exchangers such as radiators and oil coolers to keep the engine temperature within a normal range. Electric vehicles powered by a traction motor also have heat exchangers to keep the temperature of the motor and the battery, which is the power source for the motor, within normal ranges. For example, Patent Document 1 discloses a structure in which a heat exchanger is disposed below the cab of a truck having a cab at the front of the vehicle. In a structure in which the heat exchanger is disposed below the cab, the traveling wind from the front of the vehicle is likely to hit the heat exchanger, so in a heat exchanger such as a radiator, the medium (cooling water) inside the heat exchanger can be efficiently cooled by the traveling wind, making it easy to ensure heat exchange performance. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-34759 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, due to the layout of trucks, structures have been considered in which the heat exchanger is located in a place other than under the cab. For example, in electric trucks using a motor as the drive source, the motor is not located under the cab, so the placement of the heat exchanger in a place other than under the cab has been considered.

[0005] However, in a structure where the heat exchanger is located somewhere other than under the cab, the heat exchanger is less likely to be exposed to the wind from the front of the vehicle compared to when the heat exchanger is located under the cab, which may make it more difficult to ensure heat exchange performance. Therefore, there is room for improvement in terms of improving the heat exchange performance of the heat exchanger. The present invention has been devised in view of the above-mentioned problems, and one of its objects is to improve the heat exchange performance of a heat exchanger. [Means for solving the problem]

[0006] The present invention has been made to solve at least part of the above problems, and can be realized as the following aspects or application examples.

[0007] (1) The heat exchange device according to this application example is a box-shaped heat exchange device having an internal space in which a heat exchanger that exchanges heat with components mounted on a vehicle is housed, and is equipped with an intake port provided on a first surface portion, which is one of the wall surfaces surrounding the internal space, for taking in air from the outside into the internal space, and an exhaust port provided on a second surface portion, different from the first surface portion, of the wall surfaces surrounding the internal space, for discharging the air taken in through the intake port from the internal space to the outside, wherein at least a portion of the intake port is located forward of the exhaust port when viewed from the vehicle width direction of the vehicle, and at least a portion of the heat exchanger is located between the intake port and the exhaust port when viewed from the front-to-rear direction of the vehicle. According to this application example, since at least a portion of the air inlet is located further forward than the exhaust outlet of the vehicle and at least a portion of the heat exchanger is located between the air inlet and the exhaust outlet, air (traveling wind) that is taken in from the outside into the interior space through the air inlet and exhausted from the interior space to the outside through the exhaust outlet easily passes through the heat exchanger, thereby improving the heat exchange performance of the heat exchanger.

[0008] (2) The heat exchange device according to this application example is a box-shaped heat exchange device having an internal space that houses a heat exchanger that exchanges heat with components mounted on a vehicle, and is equipped with a first surface portion that is arranged in front of the heat exchanger and extends in the vehicle width direction and the vertical direction of the vehicle, a second surface portion that is arranged outward of the heat exchanger in the vehicle width direction and extends in the fore-and-aft direction and the vertical direction of the vehicle, an intake port that is provided on the first surface portion and that takes in air from the outside into the internal space, and an exhaust port that is provided on the second surface portion and that discharges the air taken in from the intake port from the internal space to the outside.

[0009] According to this application example, the first surface portion, which is disposed in front of the heat exchanger in the vehicle width direction and in the vertical direction, is prone to be exposed to wind as the vehicle travels. Therefore, positive pressure is generated on the front side (outside) of the first surface portion due to the wind. Meanwhile, the second surface portion, which is disposed outboard of the heat exchanger in the vehicle width direction, extends rearward and in the vertical direction, so that wind as the vehicle travels passes through the second surface portion in a direction substantially parallel to the second surface portion. Therefore, negative pressure is generated on the outside of the second surface portion due to the wind.

[0010] By providing an intake port on the first surface portion arranged as described above and an exhaust port on the second surface portion, it is possible to utilize the positive and negative pressures caused by the wind from driving to draw air from outside the heat exchange device into the internal space through the intake port and to exhaust the air from the internal space to outside the heat exchange device. The air in the interior space flows from the front to the rear of the heat exchanger and outward in the vehicle width direction, so that the air can be efficiently directed to the heat exchanger housed in the interior space, thereby improving the heat exchange performance of the heat exchanger.

[0011] (3) In the heat exchange device according to this application example, an inlet-side flow straightening member that guides the air taken in from the outside so that it flows toward the heat exchanger may be attached to the air intake port. With this configuration, the inlet-side flow guide member guides the air taken in from the outside toward the heat exchanger, thereby improving the efficiency of air flow toward the heat exchanger, thereby further improving heat exchange performance.

[0012] (4) In the heat exchange device according to this application example, an outlet-side flow straightening member that guides the air discharged from the internal space so that it flows rearward may be attached to the exhaust port. With this configuration, the outlet-side straightening member guides the air discharged from the interior space so that it flows toward the rear of the vehicle, thereby improving the efficiency of discharging air from the interior space and further enhancing heat exchange performance.

[0013] (5) In the heat exchange device according to this application example, the first surface portion may be disposed behind a wheel, and the air inlet may be provided at a position that does not overlap with the wheel in the front-rear direction. With this configuration, even if the heat exchanger is located behind the wheels, it is less susceptible to the negative pressure generated behind the wheels, making it easier to improve heat exchange performance. In addition, the area behind the wheels is less subject to layout restrictions, making it easier to secure space to install the heat exchanger.

[0014] (6) In the heat exchange device according to this application example, the opening area of ​​the intake port and the opening area of ​​the exhaust port may be set to be approximately the same. With this configuration, the intake performance (amount of intake) of air drawn in through the intake port and the exhaust performance (amount of exhaust) of air discharged through the exhaust port are roughly the same, allowing for efficient air flow and further improving heat exchange performance.

[0015] (7) In the heat exchange device according to this application example, the second surface portion may be disposed at an outermost position in the vehicle width direction. With this configuration, the second surface portion provided with the exhaust port is positioned at the outermost position in the vehicle width direction, which makes it easier for negative pressure due to the wind from traveling to be generated near the exhaust port of the second surface portion, thereby improving exhaust efficiency using negative pressure and thereby further improving heat exchange performance.

[0016] (8) In the heat exchange device according to this application example, the air inlet may be disposed on the inner side of the heat exchanger in the vehicle width direction. With this configuration, the air intake is positioned on the inside of the heat exchanger in the vehicle width direction, which makes it easier for the air taken in through the air intake to flow from the inside to the outside of the heat exchanger in the vehicle width direction. This improves the efficiency of air flow toward the heat exchanger, thereby further improving heat exchange performance.

[0017] (9) In the heat exchange device according to this application example, the outlet may be arranged to overlap the heat exchanger when viewed from the vehicle width direction. With this configuration, the exhaust port is positioned so as to overlap the heat exchanger when viewed from the vehicle width direction, which makes it easier for air that has passed through the heat exchanger to be discharged from the exhaust port. This improves the efficiency of discharging air from the interior space, thereby further improving heat exchange performance.

[0018] (10) In the heat exchange device according to this application example, a fan may be provided adjacent to the heat exchanger on the outer side in the vehicle width direction with a gap therebetween. With this configuration, the fan can actively blow the airflow from the air intake toward the heat exchanger, improving the efficiency of air movement by utilizing the negative pressure of the airflow, thereby further improving heat exchange performance. (11) In the heat exchange device according to the application example of (10) above, a plurality of the fans may be arranged for the heat exchanger. According to this configuration, the arrangement of a plurality of fans relative to the heat exchanger improves the blowing force, thereby further improving the heat exchange performance.

[0019] (12) The heat exchange device according to this application example may further include an inclined surface portion that is positioned inward in the vehicle width direction relative to the heat exchanger, extends in the fore-and-aft direction and the up-and-down direction of the vehicle, and is inclined outward in the vehicle width direction from the front to the rear. With this configuration, the inclined surface portion makes it easier to guide the air taken in through the air inlet toward the air outlet, improving the air movement efficiency and further enhancing the heat exchange performance.

[0020] (13) In the heat exchange device according to this application example, the heat exchanger may be a radiator. This configuration improves the heat exchange performance of the radiator. (14) In the heat exchange device according to this application example, the vehicle may be an electric vehicle, and the component may be at least one of a battery and a motor. This configuration improves the heat exchange performance of the heat exchanger in the electric vehicle, which in turn contributes to improving the electric fuel economy of the electric vehicle. [Effects of the Invention]

[0021] According to the present invention, the heat exchange performance of the heat exchanger can be improved. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a schematic plan view showing a heat exchanger according to a first embodiment together with a vehicle, with a portion of the heat exchanger shown in cross section. [Figure 2] 2(A) is an enlarged view of the heat exchanger of FIG. 1, and FIG. 2(B) is a cross-sectional view of the heat exchanger as seen from the arrow A in FIG. 2(A). [Figure 3] FIG. 2(A) is an explanatory view showing a first surface of a heat exchange device, and FIG. 2(B) is an explanatory view showing a second surface of the heat exchange device. [Figure 4] FIG. 4 is a plan view showing a heat exchange device according to a second embodiment. [Figure 5] FIG. 10 is a plan view showing a heat exchange device according to a third embodiment together with a vehicle. [Figure 6] FIG. 10 is a plan view showing a heat exchange device according to a fourth embodiment together with a vehicle. [Figure 7] FIG. 11 is a plan view showing a heat exchange device according to a fifth embodiment together with a vehicle. DETAILED DESCRIPTION OF THE INVENTION

[0023] Each embodiment (aspect, application example) of the present invention will be described with reference to the drawings. The following embodiments are merely examples, and are not intended to exclude various modifications or applications of techniques not explicitly stated in these embodiments. The configurations of the following embodiments can be modified in various ways without departing from the spirit of the invention. Furthermore, they can be selected or combined as needed.

[0024] In the following description, the front-rear, left-right, and up-down directions are defined based on the vehicle. That is, the vehicle length direction corresponds to the "front-rear direction." The vehicle width direction corresponds to the "left-right direction," and left and right are defined based on the forward-facing posture of the vehicle. The vehicle height direction corresponds to the "up-down direction." In Figures 1 to 7, the "front-rear direction" is indicated by the symbol D1, the "vehicle width direction" by the symbol D2, and the "up-down direction" by the symbol D3. In addition, the side away from the vehicle (vehicle body) in the vehicle width direction D2 is referred to as the outer side in the vehicle width direction, and the opposite side is referred to as the inner side in the vehicle width direction. Specifically, in a top view of the vehicle, in the part to the left of the center line of the vehicle body, the left is the outer side in the vehicle width direction and the right is the inner side in the vehicle width direction. Similarly, in the part to the right of the center line of the vehicle body, the right is the outer side in the vehicle width direction and the left is the inner side in the vehicle width direction.

[0025] [First embodiment] [1. Configuration] Fig. 1 is a schematic plan view showing a heat exchanger 20 according to one embodiment together with a vehicle 1. The vehicle 1 to which the heat exchanger 20 according to this embodiment is applied is, for example, an electric truck, and includes a cab 11 and side frames 12, and has four wheels: a pair of left and right front wheels 18 and a pair of left and right rear wheels 19. In the vehicle 1 in Fig. 1, the cab 11 is indicated by a two-dot chain line, and mounted structures are not shown.

[0026] First, the configuration of the vehicle 1 will be described. The cab 11 is mounted on side frames 12 at the front of the vehicle 1. The side frames 12 are the skeleton of the vehicle 1. As shown in FIG. 1, the vehicle 1 has a pair of left and right side frames 12 that extend in the front-to-rear direction D1 and are spaced apart from each other in the vehicle width direction D2. The pair of side frames 12 are connected to each other by multiple cross members (not shown) that extend in the vehicle width direction D2, and together with the cross members, support the cab 11 and any mounted equipment disposed behind the cab 11 from below.

[0027] A drive battery 13, a DC / DC converter 14, a heater (not shown) for the battery 13, a traveling motor 16, and an axle gear box 17 are arranged on the inner side in the vehicle width direction D2 of the pair of side frames 12 (between the side frames). The motor 16 includes an inverter (not shown). The battery 13 is a power source for the motor 16 that drives the vehicle 1, and is also called a high-voltage battery. The battery 13 is, for example, a lithium-ion battery or a nickel-metal hydride battery, and is a secondary battery that can supply a relatively high-voltage direct current (generally 200 V or higher). The battery 13 is disposed at a position closer to the front in the fore-and-aft direction D1. More specifically, the front end of the battery 13 is disposed below the cab 11.

[0028] A DC / DC converter 14, which is a DC voltage conversion device, is disposed behind the battery 13. The DC / DC converter 14, for example, boosts the voltage from an on-board charger (not shown) to charge the battery 13, or reduces the voltage of the battery 13 to output it to on-board accessories (such as a fan 26 (described later) and an auxiliary battery (not shown)). A motor 16 and an axle gearbox 17 are arranged behind the DC / DC converter 14. The motor 16 is an electric motor that operates using power supplied from the battery 13 to drive the vehicle 1, and is connected to a pair of rear wheels 19, transmitting power to the rear wheels 19 via an axle (not shown). The gearbox 17 includes gears that perform the function of transmitting the driving force of the motor 16.

[0029] The vehicle 1 is provided with a heat exchanger 21 for exchanging heat with components mounted on the vehicle. The heat exchanger 21 is housed in a heat exchange device 20. That is, the vehicle 1 of this embodiment is equipped with one heat exchange device 20. The heat exchange device 20 is a mounting device for mounting the heat exchanger 21 on the vehicle 1, and includes a box-shaped case body 20A having an internal space 20S for accommodating the heat exchanger 21. The case body 20A is a container for accommodating the heat exchanger 21. The heat exchange device 20 in FIG. 1 is formed, for example, by a rectangular parallelepiped case body 20A, and the case body 20A is depicted in cross section along a horizontal plane.

[0030] 1 is disposed between the front wheel 18 and the rear wheel 19 on the outer side of the side frame 12 in the vehicle width direction. Specifically, the heat exchanger 20 is attached to the side frame 12 via a bracket 22 with a gap (separateness) therebetween, in a position extending to the right (outside) of the right side frame 12. The heat exchanger 21 in the heat exchange device 20 is fixed to the case body 20A via a bracket 25. That is, the heat exchanger 21 is not directly attached to the side frame 12, but is attached to the outer side of the side frame 12 in the vehicle width direction, i.e., to the side of the vehicle 1, via the box-shaped case body 20A (box-shaped heat exchange device 20).

[0031] In a structure in which the heat exchanger 21 is mounted in a location other than below the cab 11 (here, on the outer side of the side frame 12 in the vehicle width direction, i.e., on the side of the vehicle 1) as described above, it is less likely that the traveling wind from the front of the vehicle 1 will hit the heat exchanger 21 than when the heat exchanger is disposed below the cab 11, and it may be more difficult to ensure heat exchange performance. Therefore, the heat exchange device 20 of this embodiment has a configuration that improves the heat exchange performance of the heat exchanger 21, as will be described later.

[0032] Here, a specific example of the heat exchanger 21 will be described. The heat exchanger 21 has a function of exchanging heat with components to be cooled, i.e., at least one of a function of heating and a function of cooling the components. In this embodiment, an example is given in which the heat exchanger 21 has a function of cooling the components. Specifically, the components to be cooled are the battery 13 and the motor 16, and the heat exchanger 21 is a radiator for cooling the battery 13 and the motor 16. As is well known, the radiator 21 is a device that exchanges heat with the battery 13 and the motor 16 via a fluid (refrigerant), and is a heat exchange unit (heat exchanger) through which the fluid (refrigerant) flows and cools the refrigerant by exchanging heat with outside air. The refrigerant may be cooling water, cooling oil, or the like.

[0033] The radiator 21 is connected to flow paths 23A and 23B for circulating a refrigerant between the radiator 21 and the battery 13 and between the radiator 21 and the motor 16. Each of the flow paths 23A and 23B is formed of a pipe for circulating the refrigerant. The flow path 23A is a circuit for circulating the refrigerant between the radiator 21 and the battery 13, and the flow path 23B is a circuit for circulating the refrigerant between the radiator 21 and the motor 16. In FIG. 1 , the DC / DC converter 14 is also provided in the flow path 23A and is included in the components to be cooled. The gear box 17 is not provided in the flow path 23B and is not included in the components to be cooled. Pumps 24A and 24B are provided in the flow paths 23A and 23B, respectively, to pump the circulating refrigerant at a predetermined flow rate and to change the flow rate.

[0034] The radiator 21 of this embodiment is provided in a position parallel to the side frame 12. That is, the radiator 21 is accommodated in the internal space 20S of the heat exchange device 20 in a position in which the normal to the surface 21A (the surface having the largest area) that receives air substantially coincides with the left-right direction (vehicle width direction) D2, in other words, in which the surface 21A is substantially parallel to the front-rear direction D1. A fan 26 is arranged in parallel with the radiator 21 with a gap therebetween on the outer side in the vehicle width direction D2 (on the right side in FIG. 1).

[0035] The fan 26 is an axial flow fan, and is a blower for actively sending air to the radiator 21. Specifically, the fan 26 is provided on the outer side of the surface 21A of the radiator 21 in the vehicle width direction, with its rotation axis aligned with the vehicle width direction D2. The air blowing direction of the fan 26 can be switched as appropriate depending on the setting of the rotation direction of the fan 26. The blowing direction of the fan 26 in this embodiment is set to be a direction from the inside to the outside in the vehicle width direction, that is, a direction in which air is drawn from the inside to the outside in the vehicle width direction relative to the radiator 21.

[0036] The fan 26 is attached to the radiator 21 via a fan shroud 27. The fan shroud 27 is a cylindrical cover member that surrounds the outer periphery of the fan 26. In this embodiment, the radiator 21 and the fan 26 are integrated via a fan shroud 27 to form a module (assembly). That is, the internal space 20S of the heat exchange device 20 accommodates a module in which the radiator 21, the fan 26, and the fan shroud 27 are integrated.

[0037] [2. Detailed configuration] The configuration of the heat exchanger 20 will be described with reference to FIGS. First, we will explain the case body 20A of the heat exchanger 20. The heat exchanger 20 (case body 20A) includes a front surface 20F (first surface) and an outer surface 20R (second surface). The front surface 20F is one of the wall surfaces surrounding the internal space 20S and is a surface on which an air inlet 29 (described later) is provided. The front surface 20F is disposed forward of the heat exchanger 21 and extends in the vehicle width direction D2 and the up-down direction D3. The outer surface portion 20R is a surface portion different from the front surface portion 20F among the wall surface portions surrounding the internal space 20S, and is a surface portion on which an exhaust outlet 30 described below is provided.It is positioned outside (here, on the right side) in the vehicle width direction D2 relative to the heat exchanger 21 and is a surface that extends in the front-to-back direction D1 and the up-down direction D3.

[0038] As described above, the case body 20A is a rectangular parallelepiped, and is a hexahedron having a total of six faces, including the front face 20F and outer face 20R, as well as the rear face 20B, inner face 20L, upper face 20U, and lower face 20D. The rear surface portion 20B is a surface that is disposed rearward of the heat exchanger 21 and extends in the vehicle width direction D2 and the up-down direction D3, and can also be said to be a surface that is disposed opposite the front surface portion 20F with the heat exchanger 21 interposed therebetween.

[0039] The inner surface portion 20L is a surface that is positioned inside (here, on the left side) in the vehicle width direction D2 relative to the heat exchanger 21 and extends in the front-to-rear direction D1 and the up-to-down direction D3, and can also be said to be a surface that is positioned opposite the outer surface portion 20R via the heat exchanger 21. The upper surface portion 20U is a surface that is disposed above the heat exchanger 21 and extends in the front-rear direction D1 and the vehicle width direction D2. The lower surface portion 20D is a surface that is disposed below the heat exchanger 21 and extends in the front-rear direction D1 and the vehicle width direction D2, and can also be said to be a surface that is disposed opposite the upper surface portion 20U with the heat exchanger 21 interposed therebetween.

[0040] The heat exchanger 20 is attached to the side frame 12 with the front surface 20F facing forward, the outer surface 20R facing outward in the vehicle width direction D2, and the upper surface 20U facing upward. In this case, the rear surface 20B faces rearward, the inner surface 20L faces inward in the vehicle width direction D2, and the lower surface 20D faces downward. Therefore, the inner surface 20L facing inward in the vehicle width direction D2 is the attachment surface to the side frame 12.

[0041] 1, when the heat exchanger 20 is attached to the side frame 12, the outer side surface portion 20R is disposed at the outermost position in the vehicle width direction D2. As described above, in the rectangular parallelepiped heat exchanger 20, the outer side surface portion 20R is disposed on the outer side in the vehicle width direction D2 (outermost position) than other portions of the heat exchanger 20. It is preferable that the outer side surface portion 20R is disposed at the outermost position in the vehicle 1.

[0042] In the heat exchange device 20 thus mounted, the outer side surface portion 20R, the inner side surface portion 20L, the upper surface portion 20U, and the lower surface portion 20D can be said to be arranged substantially parallel to the front-to-rear direction D1, which is the direction in which the vehicle 1 moves forward or backward. In other words, the outer side surface portion 20R, the inner side surface portion 20L, the upper surface portion 20U, and the lower surface portion 20D can be said to be arranged so that the traveling wind W1, denoted by the symbol W in FIG. 2(A), passes through them substantially parallel to each other. It can also be said that the front surface portion 20F and the rear surface portion 20B are disposed in a position intersecting with the front-rear direction D1. In other words, it can also be said that the front surface portion 20F and the rear surface portion 20B are disposed in a position intersecting with the traveling wind W1.

[0043] The internal space 20S of the heat exchanger 20 is surrounded by a front surface 20F, a rear surface 20B, an outer surface 20R, an inner surface 20L, an upper surface 20U, and a lower surface 20D. The dimensions of the case body 20A, i.e., the dimensions of the front surface 20F, the rear surface 20B, the outer surface 20R, the inner surface 20L, the upper surface 20U, and the lower surface 20D, are set to appropriate dimensions to form the internal space 20S capable of accommodating the radiator 21 and the fan 26. Here, "capable of accommodating the radiator 21 and the fan 26" means that the radiator (heat exchanger) 21 and the fan 26 can be arranged in the internal space 20S with clearances from the front surface 20F, the rear surface 20B, the outer surface 20R, the inner surface 20L, the upper surface 20U, and the lower surface 20D.

[0044] In the heat exchange device 20, an outer side surface portion 20R, a fan 26 (and a fan shroud 27), a radiator 21, and an inner side surface portion 20L are arranged in this order from the outer side (here, the right side) to the inner side (here, the left side) in the vehicle width direction. As shown in Figures 1 and 2(A) and (B) , a module integrating the radiator 21, the fan 26, and the fan shroud 27 is fixed to the inner side surface portion 20L via a bracket 25. As described above, the surface 21A of the radiator 21 is disposed in a position substantially parallel to the front-rear direction D1, and therefore the surface 21A of the radiator 21 is also in a position substantially parallel to the outer side surface portion 20R and the inner side surface portion 20L.

[0045] The heat exchange device 20 has an intake port 29 provided on the front surface (first surface) 20F and an exhaust port 30 provided on the outer surface (second surface) 20R to send air to the radiator 21 housed in the internal space 20S. The intake port 29 is an opening provided to take in air from the outside into the internal space 20S, and at least a portion of it is located forward of the exhaust port 30 when viewed from the vehicle width direction D2. The exhaust port 30 is an opening provided to exhaust air from the internal space 20S to the outside. In other words, the internal space 20S of the heat exchange device 20 (case body 20A) is connected to the outside at the intake port 29 and the exhaust port 30, and is a shielded space in areas other than the intake port 29 and the exhaust port 30. Note that the above-mentioned "outside" refers to the outside of the internal space 20S of the heat exchange device 20 (case body 20A).

[0046] As shown in Fig. 2(A), at least a portion of radiator 21 is located between inlet 29 and outlet 30 when viewed from the front-to-rear direction D1. In Fig. 2(A), dashed arrow W2 indicates the flow of air that is taken in from inlet 29 into interior space 20S and discharged from outlet 30 while the vehicle is running or when fan 26 is operating. As indicated by dashed arrow W2, the air flows from the front to the rear of radiator 21, and across from the inside to the outside in the vehicle width direction D2, and flows toward the rear of vehicle 1 after being discharged from interior space 20S (heat exchange device 20). To guide this air flow, an inlet-side straightening member 31 is attached to the intake port 29 to guide the air taken in from the outside so that it flows toward the radiator 21. In addition, an outlet-side straightening member 32 is attached to the exhaust port 30 to guide the air exhausted from the internal space 20S so that it flows toward the rear of the vehicle 1.

[0047] The inlet-side rectifying member 31 shown in FIG. 2(A) is formed of a plate-like member provided inside the internal space 20S at the location of the air inlet 29 in the front portion 20F. Specifically, the inlet-side rectifying member 31 has a surface extending in the front-rear direction D1 and the up-down direction D3, and is provided in an attitude that is inclined outward (to the right) and rearward from the location of the air inlet 29. A plurality of the inlet-side rectifying members 31 provided as described above are arranged side by side along the vehicle width direction D2 at the air inlet 29. The shape, size, and inclination attitude (inclination angle) of each inlet-side rectifying member 31 may be appropriately set so that air taken in from the outside is guided toward the radiator 21.

[0048] The outlet-side rectifying member 32 shown in FIG. 2(A) is formed of a plate-like member provided inside the internal space 20S at a location on the outer surface portion 20R where the exhaust outlet 30 is provided. Specifically, the outlet-side rectifying member 32 has a surface extending in the vehicle width direction D2 and the up-down direction D3, and is provided in an attitude that is inclined inward (leftward) and forward from the location where the exhaust outlet 30 is provided. A plurality of outlet-side rectifying members 32 provided as described above are arranged side by side along the front-rear direction D1 at the exhaust outlet 30. The shape, size, and inclination attitude (inclination angle) of each outlet-side rectifying member 32 may be appropriately set so that air discharged from the internal space 20S is guided toward the rear of the vehicle 1.

[0049] Fig. 3(A) is a front view of the front surface portion 20F as viewed from the front, with the wheels 18 and the radiator 21 indicated by dashed lines. Fig. 3(B) is a side view of the outer surface portion 20R as viewed from the outside in the vehicle width direction D2, with the radiator 21 indicated by dashed lines. The intake port 29 and the exhaust port 30 are not particularly limited in shape or size as long as they are openings provided in the front surface portion 20F and the outer surface portion 20R, respectively. The intake port 29 shown in Fig. 3(A) is formed by, for example, a plurality of rectangular slits 29A that are elongated in the vehicle width direction D2 and arranged in the up-down direction D3. The exhaust port 30 shown in Fig. 3(B) is formed by, for example, a plurality of rectangular slits 30A that are elongated in the front-rear direction D1 and arranged in the up-down direction D3.

[0050] From the viewpoint of suppressing pressure loss, it is preferable that the size (opening area) of the inlet 29 and the outlet 30 be large. On the other hand, if the inlet 29 and the outlet 30 are too large, the shielding (protection) of items housed in the internal space 20S, such as the radiator 21 and the fan 26, and the strength of the case body 20A may become insufficient. As an example, the sizes (opening areas) of the suction port 29 and the exhaust port 30 are set to be approximately the same. Here, "approximately the same" means that the sizes of the suction port 29 and the exhaust port 30 are the same, or if not the same, are to the extent that they can be considered to be the same. In the suction port 29 and the exhaust port 30 shown in Figures 3(A) and 3(B), for example, the total opening area of ​​the multiple slits 29A that make up the suction port 29 and the total opening area of ​​the multiple slits 30A that make up the exhaust port 30 are set to be approximately the same.

[0051] In this embodiment, the air intake 29 is disposed inside the radiator 21 in the vehicle width direction D2. Specifically, as shown in Figures 2(A) and 3(A), a portion of the air intake 29 is disposed inside the radiator 21 in the vehicle width direction D2. This arrangement of the air intake 29 is a structure for taking in air from inside the radiator 21 in the vehicle width direction D2. 2(A) and 3(B), the exhaust port 30 of this embodiment is arranged to overlap the radiator 21 when viewed from the vehicle width direction D2. This arrangement of the exhaust port 30 is a structure for efficiently discharging air that has passed through the radiator 21 from the inside to the outside in the vehicle width direction D2.

[0052] As described above, the heat exchanger 20 of this embodiment is disposed between the front wheels 18 and the rear wheels 19 (see FIG. 1). When the heat exchanger 20 is disposed behind the wheels (the front wheels 18 in this case), the front portion 20F is disposed behind the front wheels 18, and is therefore susceptible to the negative pressure generated behind the front wheels 18 by the wind generated during travel. Therefore, it is preferable that the air inlet 29 is disposed at a position that does not overlap with the front wheels 18 in the front-to-rear direction D1 so that air can be taken in through the air inlet 29 without being affected by the negative pressure generated behind the front wheels 18 by the wind generated during travel. Specifically, in FIG. 3(A), a portion of the air inlet 29 is disposed inside the front wheels 18, indicated by the dashed line, in the vehicle width direction D2, and does not overlap with the front wheels 18. In addition, in order to avoid the influence of negative pressure generated behind the front wheels 18 due to wind when the vehicle is running, it is preferable that the heat exchange device 20 be disposed rearward and spaced apart from the front wheels 18.

[0053] [3. Actions and Effects]

[0054] (1) According to the heat exchange device 20 of the first embodiment described above, the heat exchange device 20 is provided with an intake port 29 provided in a first surface portion (front surface portion) 20F, which is one of the wall surface portions surrounding the internal space 20S, and an exhaust port 30 provided in a second surface portion (outer surface portion) 20R, which is different from the first surface portion 20F, among the wall surface portions surrounding the internal space 20S, and at least a portion of the intake port 29 is located forward of the exhaust port 30 when viewed from the vehicle width direction D2, and at least a portion of the heat exchanger (radiator) 21 is located between the intake port 29 and the exhaust port 30 when viewed from the front-rear direction D1. At least a portion of the intake port 29 is located further forward of the exhaust port 30 on the vehicle 1, and at least a portion of the heat exchanger 21 is located between the intake port 29 and the exhaust port 30, so that air (driving wind) that is taken into the interior space 20S from the outside through the intake port 29 and exhausted from the interior space 20S to the outside through the exhaust port 30 easily passes through the heat exchanger 21. This improves the heat exchange performance of the heat exchanger 21.

[0055] (2) According to the heat exchange device 20 of the first embodiment described above, there is provided a first surface portion (front surface portion) 20F that is arranged forward of the heat exchanger (radiator) 21 and extends in the vehicle width direction D2 and the vertical direction D3, and a second surface portion (outer side surface portion) 20R that is arranged outward of the heat exchanger 21 in the vehicle width direction D2 and extends in the fore-and-aft direction D1 and the vertical direction D3. The first surface portion 20F extends in the vehicle width direction D2 and the up-down direction D3, and is therefore susceptible to wind generated by the vehicle 1 traveling. As a result, positive pressure is generated on the front side (outside) of the first surface portion 20F by the wind. On the other hand, the second surface portion 20R extends in the front-rear direction D1 and the up-down direction D3, and therefore the wind generated by the vehicle 1 traveling passes through the second surface portion 20R in a direction substantially parallel to the second surface portion 20R. As a result, negative pressure is generated on the outside of the second surface portion 20R by the wind.

[0056] By providing an intake port 29 on the first surface portion 20F provided as described above and an exhaust port 30 on the second surface portion 20R, it is possible to utilize the positive and negative pressure caused by the wind while driving to take in air from outside the heat exchange device 20 into the internal space 20S through the intake port 29 and exhaust the air in the internal space 20S to the outside. The air in the interior space 20S flows from the front to the rear of the heat exchanger 21 and outward in the vehicle width direction, so that the air can be efficiently flowed to the heat exchanger 21 housed in the interior space 20S. As a result, the heat exchange performance of the heat exchanger 21 is improved.

[0057] (3) In the heat exchange device 20 according to the first embodiment, the inlet-side straightening member 31 is attached to the air inlet 29, and the inlet-side straightening member 31 guides the air taken in from the outside toward the heat exchanger 21. This improves the efficiency of air flow toward the heat exchanger 21, thereby further improving heat exchange performance. (4) In the heat exchange device 20 according to the first embodiment, the outlet-side straightening member 32 is attached to the exhaust port 30, and the outlet-side straightening member 32 guides the air discharged from the interior space 20S so that it flows toward the rear of the vehicle 1. This improves the efficiency of discharging air from the interior space 20S, thereby further improving heat exchange performance.

[0058] (5) Furthermore, in the heat exchanger 20 according to the first embodiment, the first surface portion 20F is disposed behind the wheels 18, and the air inlet 29 is provided at a position that does not overlap with the wheels 19 in the longitudinal direction D1. Therefore, even if the heat exchanger 20 is disposed behind the wheels 18, it is less susceptible to the negative pressure that occurs behind the wheels 18. This makes it easier to improve heat exchange performance. Furthermore, the area behind the wheels 18, i.e., between the front wheels 18 and the rear wheels 19, is less subject to layout restrictions, making it easier to ensure installation space for the heat exchanger 20.

[0059] (6) In addition, in the heat exchange device 20 according to the first embodiment, the opening area of ​​the intake port 29 and the opening area of ​​the exhaust port 30 are set to be approximately the same, so that the intake performance (suction amount) of drawing air through the intake port 29 and the exhaust performance (exhaust amount) of exhaust air through the exhaust port 30 are approximately the same, allowing air to flow efficiently. This further improves heat exchange performance.

[0060] (7) In the heat exchange device 20 according to the first embodiment, the second surface 20R is disposed at the outermost position in the vehicle width direction D2, which makes it easier for negative pressure due to wind generated while the vehicle is traveling to be generated near the exhaust port 30 of the second surface 20R, thereby improving exhaust efficiency by utilizing the negative pressure. This further improves heat exchange performance.

[0061] (8) In the heat exchange device 20 according to the first embodiment, the air intake 29 is disposed on the inner side of the heat exchanger 21 in the vehicle width direction D2, which makes it easier for the air taken in through the air intake 29 to flow crosswise from the inner side to the outer side of the heat exchanger 21 in the vehicle width direction D2. This improves the efficiency of air flow toward the heat exchanger 21, thereby further improving heat exchange performance.

[0062] (9) In the heat exchange device 20 according to the first embodiment, the exhaust port 30 is disposed so as to overlap the heat exchanger 21 when viewed from the vehicle width direction D2, which makes it easier for air that has passed through the heat exchanger 21 to be discharged from the exhaust port 30. This improves the efficiency of discharging air from the interior space 20S, thereby further improving heat exchange performance.

[0063] (10) In the heat exchange device 20 according to the first embodiment, the fan 26 is disposed adjacent to the heat exchanger 21 with a gap therebetween on the outer side in the vehicle width direction D2, so that the fan 26 can actively blow air to the heat exchanger 21. This improves the efficiency of air movement using negative pressure caused by the wind generated by running the vehicle. This further improves heat exchange performance.

[0064] (11) In the heat exchange device 20 according to the first embodiment, the heat exchanger 21 is a radiator, and therefore the heat exchange performance of the radiator 21 is improved. (12) Furthermore, in the heat exchange device 20 according to the first embodiment, the vehicle 1 is an electric vehicle, and the component to be cooled by the heat exchanger 21 is at least one of the battery 13 and the motor 16. This improves the heat exchange performance of the heat exchanger 21 in the electric vehicle 1, thereby contributing to improving the electric fuel economy of the electric vehicle 1.

[0065] [4. Other] The above-described configuration of the heat exchanger 20 is an example. For example, the shape of the case body 20A of the heat exchanger 20 is not limited to a rectangular parallelepiped shape. 4 is an explanatory diagram of a heat exchanger 120 according to a second embodiment. This heat exchanger 120 has a common configuration with the heat exchanger 20 according to the first embodiment, except for the shape of a case body 120A. 4, the heat exchanger 120 (case body 120A) has an inclined surface 120L that extends in the front-rear direction D1 and the up-down direction D3 and is inclined outward in the vehicle width direction from the front to the rear as an inner side surface located inside the heat exchanger 21 in the vehicle width direction D2. The inclined surface 120L functions as a guide surface that guides the air taken in through the air inlet 29 toward the air outlet.

[0066] In this way, according to heat exchanger 120, since inclined surface portion 120L is provided, air taken in from inlet 29 is more easily guided toward outlet 30, improving the efficiency of air movement, thereby further improving heat exchange performance. The inclined surface portion 120L may be formed into a curved surface that can improve aerodynamic characteristics, further improving heat exchange performance.

[0067] The number of fans attached to the radiator 21 may be two or more. 5 is an explanatory diagram of a heat exchanger 220 according to a third embodiment. This heat exchanger 220 has a common configuration with the heat exchanger 20 according to the first embodiment, except that a plurality of fans 226 (two in this example) are arranged for a radiator 221. The radiator 221 is set to have a larger dimension in the front-rear direction D1 than the radiator 21 of the first embodiment. By using a radiator 221 that is larger in the front-rear direction D1 in this way, the cooling performance of the radiator 221 can be enhanced without changing the dimension in the up-down direction D3, and it is easy to ensure the cooling performance for components that are separated in the front-rear direction D1, such as the battery 13 and motor 16 of the electric vehicle 1, for example.

[0068] By arranging two fans 226 side by side in the front-rear direction D1 for the radiator 221 having such a shape, it is possible to ensure a sufficient amount of airflow for the enlarged radiator 221. The two fans 226 are each covered with a fan shroud 227. That is, according to the heat exchange device 220 according to the third embodiment, the blowing force is improved by arranging a plurality of fans 226 for the heat exchanger 21. Therefore, the heat exchange performance is further improved.

[0069] Furthermore, the vehicle 1 may be equipped with a plurality of heat exchange devices 20. 6 is an explanatory diagram of a heat exchanger 320 according to a fourth embodiment. This heat exchanger 320 has a common configuration with the heat exchanger 20 according to the first embodiment, except that a plurality of (two in this case) heat exchangers 320A, 320B are arranged side by side in the front-rear direction D1 on the right side frame 12. In this case, each of the heat exchangers 320A, 320B can achieve the same effects as the heat exchanger 20 according to the first embodiment. Furthermore, since a single vehicle 1 is equipped with a plurality of heat exchangers 320A, 320B, the cooling performance of the components of the vehicle 1 can be improved.

[0070] 7 is an explanatory diagram of a heat exchanger 420 according to a fifth embodiment. This heat exchanger 420 has a common configuration with the heat exchanger 20 according to the first embodiment, except that heat exchangers 420A and 420B are disposed on both the left and right side frames 12, respectively. In this case, the same effects as those of the heat exchanger 320 according to the fourth embodiment can be obtained. Note that, although the fifth embodiment shows an example of a configuration in which heat exchangers 420A and 420B are provided on both the left and right sides, the heat exchanger 420A on the right side may be omitted.

[0071] Furthermore, the fan 26 (and the fan shroud 27) does not have to be attached to the heat exchanger 21. According to the heat exchange device 20 (120, 220, 320, 420) of the present invention, air can be blown to the heat exchanger 21 by the air flow using the intake port 29 and the exhaust port 30, so that heat exchange performance can be ensured even in a configuration without the fan 26. Furthermore, the inlet side straightening member 31 and the outlet side straightening member 32 may not be provided at the suction port 29 and the exhaust port 30, or only the inlet side straightening member 31 or the outlet side straightening member 32 may be provided.

[0072] Furthermore, the heat exchanger 21 is not limited to a radiator, and may be any heat exchanger, such as an oil cooler, that exchanges heat with components mounted on the vehicle 1. Furthermore, the component to be cooled may be at least one of the battery 13 and the motor 16. The mounting location of the heat exchanger 20 (120, 220, 320, 420) is not limited to the outer side of the side frame 12 in the vehicle width direction, but may be anywhere so long as the first surface portion extends in the vehicle width direction D2 and the vertical direction D3 of the vehicle, and the second surface portion extends in the front-to-rear direction D1 and the vertical direction D3. Furthermore, the internal space 20P of the heat exchange device 20 (120, 220, 320, 420) may house members other than the radiator 21, the fan 26, and the fan shroud 27, such as the pumps 24A and 24B. The vehicle 1 is not limited to an electric vehicle, and may be an engine vehicle equipped with an engine as a drive source. In this case, the engine is an example of a component to be cooled. Furthermore, a heater may be provided in the heat exchanger 20 (120, 220, 320, 420). That is, when traveling in cold regions, if the battery temperature is low, the heater may be operated to heat the coolant in the radiator, thereby warming the battery.

[0073] Furthermore, the first surface portion on which the suction port 29 is provided is not limited to the front surface portion 20F, but may be any surface portion of the wall portion surrounding the internal space 20S, and the suction port 29 may be provided, for example, on the inner surface portion 20L or the outer surface portion 20R. Furthermore, the second surface portion on which the exhaust outlet 30 is provided is not limited to the outer surface portion 20R, but may be any surface portion different from the first surface portion among the wall surface portions surrounding the internal space 20S, and for example, the exhaust outlet 30 may be provided on the inner surface portion 20L or the rear surface portion 20B. Specifically, if the intake port 29 is provided on the inner surface portion 20L, the exhaust port 30 may be provided on the outer surface portion 20R or the rear surface portion 20B, etc., and if the intake port 29 is provided on the outer surface portion 20R, the exhaust port 30 may be provided on the inner surface portion 20L or the rear surface portion 20B, etc. Furthermore, for example, even if the intake port 29 is provided in the front surface portion 20F, the exhaust port 30 may be provided in the inner side surface portion 20L, the rear surface portion 20B, or the like. In addition, the intake port 29 and the exhaust port 30 may be provided on the upper surface portion 20U or the lower surface portion 20D. Depending on the positions where the intake port 29 and the exhaust port 30 are provided, the first surface portion and the second surface portion in the claims can be read as the front surface portion 20F, the outer surface portion 20R, the rear surface portion 20B, the upper surface portion 20U, the lower surface portion 20D, and the inner surface portion 20L as necessary.

[0074] Below, supplementary notes regarding this embodiment will be disclosed. (Appendix 1) A box-shaped heat exchange device having an internal space in which a heat exchanger that exchanges heat with components mounted on a vehicle is housed, an intake port provided on a first surface portion that is one of the wall surfaces surrounding the internal space, and that takes in air from the outside into the internal space; an exhaust port provided on a second surface portion of the wall surface portion surrounding the internal space, the second surface portion being different from the first surface portion, and configured to exhaust the air taken in through the intake port from the internal space to the outside, At least a portion of the intake port is located forward of the exhaust port when viewed in a vehicle width direction of the vehicle, At least a portion of the heat exchanger is located between the intake port and the exhaust port when viewed from the front-rear direction of the vehicle. A heat exchange device characterized by: (Appendix 2) A box-shaped heat exchange device having an internal space in which a heat exchanger that exchanges heat with components mounted on a vehicle is housed, a first surface portion disposed forward of the heat exchanger and extending in a vehicle width direction and a vehicle up-down direction; a second surface portion disposed on the outer side of the heat exchanger in the vehicle width direction and extending in the front-rear direction and the up-down direction of the vehicle; an intake port provided on the first surface portion for taking in air from the outside into the internal space; an exhaust port provided on the second surface portion and configured to exhaust the air taken in through the intake port from the internal space to the outside; A heat exchange device characterized by: (Appendix 3) An inlet-side straightening member is attached to the air intake port to guide the air taken in from the outside toward the heat exchanger. 3. The heat exchanger according to claim 1 or 2, (Appendix 4) An outlet-side straightening member is attached to the exhaust port to guide the air exhausted from the internal space so that it flows rearward. 4. The heat exchanger according to any one of claims 1 to 3, wherein: (Appendix 5) The first surface portion is disposed behind the wheel, The intake port is provided at a position that does not overlap with the wheel in the front-rear direction. 5. The heat exchanger according to any one of claims 1 to 4, wherein: (Appendix 6) The opening area of ​​the suction port and the opening area of ​​the discharge port are set to be approximately the same. 6. The heat exchanger according to any one of claims 1 to 5, wherein: (Appendix 7) The second surface portion is disposed at the outermost position in the vehicle width direction. 7. The heat exchanger according to any one of claims 1 to 6, wherein: (Appendix 8) The air inlet is disposed on the inner side of the heat exchanger in the vehicle width direction. 8. The heat exchanger according to any one of claims 1 to 7, wherein: (Appendix 9) The exhaust port is disposed so as to overlap the heat exchanger when viewed from the vehicle width direction. 9. The heat exchanger according to any one of claims 1 to 8, wherein: (Appendix 10) A fan is provided adjacent to the heat exchanger on the outer side in the vehicle width direction with a gap therebetween. 10. The heat exchanger according to any one of claims 1 to 9, wherein: (Appendix 11) A plurality of the fans are arranged for the heat exchanger. 11. The heat exchange device according to claim 10. (Appendix 12) The vehicle width direction of the vehicle is determined based on the vehicle width direction of the vehicle body. 12. The heat exchanger according to any one of claims 1 to 11, wherein: (Appendix 13) The heat exchanger is a radiator 13. The heat exchanger according to any one of claims 1 to 12, wherein: (Appendix 14) the vehicle is an electric vehicle, The component is at least one of a battery and a motor. 14. The heat exchanger according to any one of claims 1 to 13, wherein: [Explanation of symbols]

[0075] 1 vehicle 11 Cab 12 Side frame 13 Battery 14 DC / DC converter 16 motors 17 Gearbox 18 Front wheel (wheel) 19 Rear wheel (wheel) 20 Heat exchange equipment 20A case body 20F Front section (first surface section) 20R Outer side (second side) 20B Rear part 20U top part 20D bottom part 20L inner side 20S interior space 21 Radiator (heat exchanger) 21A side 22 Bracket 23A, 23B flow path 24A, 24B pump 25 Bracket 26 Fans 27 Fan shroud 29 Intake port 29A Slit 30 Outlet 30A Slit 31 Inlet side flow straightening member 32 Outlet side straightening member 120 Heat exchange equipment 120A case body 120L Slope section 220 Heat exchange equipment 221 Radiator 226 Fans 227 Fan Shroud 320,320A,320B Heat exchange equipment 420, 420A, 420B Heat exchanger W1 Running wind W2 Air flow

Claims

1. A box-shaped heat exchange device having an internal space in which a heat exchanger that exchanges heat with components mounted on a vehicle is housed, an intake port provided on a first surface portion that is one of the wall surfaces surrounding the internal space, and that takes in air from the outside into the internal space; an exhaust port provided on a second surface portion of the wall surface portion surrounding the internal space, the second surface portion being different from the first surface portion, and configured to exhaust the air taken in through the intake port from the internal space to the outside, At least a portion of the intake port is located forward of the exhaust port when viewed in a vehicle width direction of the vehicle, At least a portion of the heat exchanger is located between the intake port and the exhaust port when viewed from the front-rear direction of the vehicle. A heat exchange device characterized by:

2. A box-shaped heat exchange device having an internal space in which a heat exchanger that exchanges heat with components mounted on a vehicle is housed, a first surface portion disposed forward of the heat exchanger and extending in a vehicle width direction and a vehicle up-down direction; a second surface portion disposed on the outer side of the heat exchanger in the vehicle width direction and extending in the front-rear direction and the up-down direction of the vehicle; an intake port provided on the first surface portion for taking in air from the outside into the internal space; an exhaust port provided on the second surface portion and configured to exhaust the air taken in through the intake port from the internal space to the outside; A heat exchange device characterized by:

3. An inlet-side straightening member is attached to the air intake port to guide the air taken in from the outside toward the heat exchanger.

3. The heat exchange device according to claim 1 or 2.

4. An outlet-side straightening member is attached to the exhaust port to guide the air exhausted from the internal space so that it flows rearward.

3. The heat exchange device according to claim 1 or 2.

5. The first surface portion is disposed behind the wheel, The intake port is provided at a position that does not overlap with the wheel in the front-rear direction.

3. The heat exchange device according to claim 1 or 2.

6. The opening area of ​​the suction port and the opening area of ​​the discharge port are set to be approximately the same.

3. The heat exchange device according to claim 1 or 2.

7. The second surface portion is disposed at the outermost position in the vehicle width direction.

3. The heat exchange device according to claim 1 or 2.

8. The air inlet is disposed on the inner side of the heat exchanger in the vehicle width direction.

3. The heat exchange device according to claim 1 or 2.

9. The exhaust port is disposed so as to overlap the heat exchanger when viewed from the vehicle width direction.

3. The heat exchange device according to claim 1 or 2.

10. A fan is provided adjacent to the heat exchanger on the outer side in the vehicle width direction with a gap therebetween.

3. The heat exchange device according to claim 1 or 2.

11. A plurality of the fans are arranged for the heat exchanger.

11. The heat exchange device according to claim 10.

12. The vehicle width direction of the vehicle is determined based on the vehicle width direction of the vehicle body.

3. The heat exchange device according to claim 1 or 2.

13. The heat exchanger is a radiator 3. The heat exchange device according to claim 1 or 2.

14. the vehicle is an electric vehicle, The component is at least one of a battery and a motor.

3. The heat exchange device according to claim 1 or 2.

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