JP7209944B2 - battery cooler - Google Patents

Description

TECHNICAL FIELD The present invention relates to a battery cooling device, and more particularly to a battery cooling device mounted on a vehicle.

Japanese Patent Laying-Open No. 2018-16143 (Patent Document 1) describes a battery cooling device. In this battery cooling device, the battery mounted on the vehicle is arranged above the floor panel of the vehicle and below the passenger seat and console box, and is cooled by a blower arranged below the passenger seat. Cooling air is sent to the battery to cool the battery. That is, since a battery generally generates heat as it is charged and discharged, its temperature rises depending on how it is used. When the temperature of the battery rises, it is necessary to cool the battery with a battery cooling device to prevent deterioration and damage of the battery.

JP 2018-16143 A

The air that has been sent to the battery by the battery cooling device and has cooled the battery may be discharged outside the vehicle. discharged to However, the air after cooling the battery is warmed by the battery, and if this air is discharged into the vehicle interior, the occupants of the vehicle may feel uncomfortable or uncomfortable. Warm air is jetted into the passenger compartment of the vehicle from the heating air duct of the air conditioner and may hit the passenger, but it is relatively rare for the passenger to feel uncomfortable. This is because the air conditioner is intentionally operated by the passenger, so even if the warm air from the air conditioner hits the passenger, the passenger hardly feels uncomfortable. In contrast, the battery cooling system is generally not manually operated by the passenger, but is automatically started depending on the temperature of the battery. Therefore, if the battery cooling device is suddenly activated when the occupant does not intend to, and the air that has been warmed after cooling the battery hits the occupant, the occupant is likely to feel uncomfortable.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a battery cooling device capable of suppressing discomfort and discomfort to a passenger due to warmed air after cooling the battery.

In order to solve the above-described problems, the present invention provides a cooling device for a battery mounted in a vehicle, in which the battery mounted in the vehicle interior and the air after cooling the battery are cooled in the vehicle interior. The vehicle is provided with a heating unit for heating the interior of the vehicle, and the heating air duct extending from the heating unit extends into the space below the front passenger seat to the rear seat of the vehicle. The battery is positioned in front of the passenger seat of the vehicle and below the passenger seat of the vehicle, and the exhaust duct extends from the battery to the space below the passenger seat. and is located on the outside in the vehicle width direction with respect to the heating air duct . and

According to the present invention configured as described above, the discharge duct extends to the space below the front passenger seat, and the discharge port faces the wall surface forming the space below the front passenger seat. Therefore, the air discharged from the exhaust port under the front passenger seat hits the wall surface under the front passenger seat, stays there, and spreads into the vehicle interior from the space under the front passenger seat while being diffused. As a result, it is possible to prevent the air discharged from the discharge port of the discharge duct from directly hitting the occupant in the passenger compartment, thereby suppressing the sense of discomfort and discomfort given to the occupant.

According to the present invention configured in this way, the exhaust duct is arranged outside the heating air duct in the vehicle width direction, and the exhaust port of the exhaust duct exhausts the air outward. The warm air from the duct can be avoided from hitting the rear seat occupants directly. Therefore, it is possible to reliably prevent excessive warm air from being led to the rear seats and giving discomfort to passengers in the rear seats.

In the present invention, preferably, the outlet of the exhaust duct is arranged at a position at least partially overlapping the heating air duct when viewed from the side of the vehicle.
According to the present invention configured in this way, since the outlet of the exhaust duct is arranged at a position overlapping with the heating air duct, the heating air duct and the exhaust duct can be arranged in a narrow space below the front passenger seat.

In the present invention, preferably, a passenger seat provided in the vehicle is supported by a seat rail for the passenger seat, and the rear portion of the seat rail is attached to a first cross member extending in the vehicle width direction of the vehicle, The discharge port of the discharge duct is arranged on the front side of the vehicle relative to the first cross member.

According to the present invention configured as described above, since the outlet of the exhaust duct is arranged on the front side of the vehicle with respect to the first cross member, the air discharged from the outlet is discharged into the space below the front passenger seat. As a wall surface forming the . As a result, it is possible to prevent the air discharged from the exhaust port from directly hitting the occupant in the vehicle interior, thereby suppressing the sense of incongruity and discomfort given to the occupant.

In the present invention, preferably, the front portion of the seat rail is attached to a second cross member extending in the vehicle width direction of the vehicle, and the discharge port of the discharge duct is arranged on the rear side of the vehicle relative to the second cross member. It is

According to the present invention configured as described above, since the outlet of the exhaust duct is arranged on the rear side of the vehicle relative to the second cross member, the air discharged into the space below the front passenger seat is discharged into the front passenger seat. It is possible to suppress the flow to the front side of the seat. As a result, the air discharged into the space below the front passenger seat can be diffused more widely, and discomfort and discomfort given to the occupants can be suppressed.

In the present invention, preferably, a tunnel portion is provided inside the front passenger seat of the vehicle in the vehicle width direction, and the outlet of the exhaust duct is directed toward the tunnel portion.
According to the present invention configured as described above, since the outlet of the outlet of the outlet duct is directed toward the tunnel portion, the air discharged from the outlet forms the wall surface forming the space below the front passenger seat. , hits the surface of the tunnel section, so that the discharged air can be effectively diffused. As a result, it is possible to prevent the air discharged from the exhaust port from directly hitting the occupant in the vehicle interior, thereby suppressing the sense of incongruity and discomfort given to the occupant.

In the present invention, preferably the outlet of the outlet duct is directed towards the seat cushion of the front passenger seat of the vehicle.
According to the present invention configured as described above, since the outlet of the outlet of the outlet duct is directed toward the seat cushion of the passenger seat, the air discharged from the outlet is directed to the space below the passenger seat. As the wall surface to be formed hits the lower surface of the seat cushion, the discharged air can be effectively diffused. As a result, it is possible to prevent the air discharged from the exhaust port from directly hitting the occupant in the vehicle interior, thereby suppressing the sense of incongruity and discomfort given to the occupant.

In the present invention, preferably, a floor panel is provided below the front passenger seat of the vehicle, and the outlet of the exhaust duct is directed toward the floor panel.
According to the present invention configured in this manner, the outlet of the exhaust duct is directed toward the floor panel, so that the air discharged from the outlet forms a wall surface that forms the space below the front passenger seat. , hit the surface of the floor panel, so that the discharged air can be effectively diffused. As a result, it is possible to prevent the air discharged from the exhaust port from directly hitting the occupant in the vehicle interior, thereby suppressing the sense of incongruity and discomfort given to the occupant.

In the present invention, a side member is preferably provided outside the front passenger seat of the vehicle in the vehicle width direction, and the discharge port of the discharge duct is directed toward the side member.
According to the present invention configured in this manner, since the outlet of the outlet of the outlet duct is directed toward the side member, the air discharged from the outlet forms a wall surface that forms the space below the front passenger seat. , hits the surface of the side member, so that the discharged air can be effectively diffused. As a result, it is possible to prevent the air discharged from the exhaust port from directly hitting the occupant in the vehicle interior, thereby suppressing the sense of incongruity and discomfort given to the occupant.

The present invention also provides a cooling device for a battery mounted in a vehicle, comprising: a battery mounted in a vehicle interior; an exhaust duct for discharging air after cooling the battery into the vehicle interior; The battery is arranged in front of the passenger seat of the vehicle and below the passenger seat of the vehicle, the vehicle is provided with a heating unit for heating the interior of the vehicle, and a heating air duct extending from the heating unit extends to the lower side of the front passenger seat and is configured to guide heated air to the lower side of the rear seat of the vehicle, and the exhaust duct is arranged on the outside in the vehicle width direction with respect to the heating air duct, and the exhaust duct The discharge port is characterized by discharging air outward in the vehicle width direction.

According to the battery cooling device of the present invention, it is possible to prevent the air that has been warmed after cooling the battery from causing discomfort and discomfort to the occupant.

1 is a perspective view showing an entire vehicle equipped with a battery cooling device according to an embodiment of the invention; FIG. 1 is a perspective view of a vehicle equipped with a battery cooling device according to an embodiment of the present invention, viewed obliquely from the upper rear; FIG. FIG. 3 is a side sectional view taken along line III-III of FIG. 2; It is a side view showing the whole battery cooling device by an embodiment of the present invention. 1 is a front view of a battery cooling device according to an embodiment of the present invention with the battery and toe board removed; FIG. 1 is a perspective view showing wiring of a wire harness extending from a battery in a battery cooling device according to an embodiment of the present invention; FIG. FIG. 4 is a cross-sectional view showing the outlet of the exhaust duct of the battery cooling device according to the embodiment of the present invention;

Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.
FIG. 1 is a perspective view showing an entire vehicle 1 equipped with a battery cooling device according to an embodiment of the invention. FIG. 2 is a perspective view of the vehicle 1 equipped with the battery cooling device according to the embodiment of the present invention, viewed obliquely from the upper rear. FIG. 3 is a side cross-sectional view taken along line III--III in FIG.

As shown in FIG. 1, a vehicle 1 equipped with the battery cooling device of the present embodiment has an engine 2, a motor/generator 4, and a transmission 6 arranged in order from the front in the front of the vehicle, and the rear wheels 8 are driven. It is a so-called FR car. The power generated by the engine 2 and the motor/generator 4 is transmitted to the rear wheels 8 via a propeller shaft (not shown) extending longitudinally in the width direction center of the vehicle 1 . The propeller shaft is passed through a tunnel portion 10a extending in the longitudinal direction of the vehicle 1 between the driver's seat 12 and the passenger's seat 14. As shown in FIG. Further, a rear seat 16 is provided behind the driver's seat 12 and the passenger's seat 14 . A heating unit 18 for heating the interior of the vehicle is provided in front and in the center of the driver's seat 12 and the passenger's seat 14 .

Further, as shown in FIG. 2, side members 10b are provided along both side surfaces of the vehicle 1 so as to extend in the front-rear direction of the vehicle. 2 shows a state in which the front passenger seat 14 is removed. A first cross member 10c and a second cross member 10d extending in the vehicle width direction are provided so as to connect the side member 10b and the tunnel portion 10a (only the passenger seat side is shown in FIG. 2). . Here, the first cross member 10c is arranged near the rear ends of the driver's seat 12 and the passenger's seat 14 (not shown in FIG. 2), and the second cross member 10d is arranged between the driver's seat 12 and the passenger's seat. It is arranged near the front end of the seat 14 .

Further, a seat rail 10e is attached between the first cross member 10c and the second cross member 10d so as to extend in the longitudinal direction of the vehicle 1 (only the passenger seat side is shown in FIG. 2). That is, the front portion of the seat rail 10e is attached to the second cross member 10d, and the rear portion thereof is attached to the first cross member 10c. The driver's seat 12 and the front passenger's seat 14 are slidably supported in the longitudinal direction of the vehicle 1 by two parallel seat rails 10e.

Further, as shown in FIG. 2, a heating air duct 18a is connected to a heating unit 18 arranged in the front part of the vehicle 1. As shown in FIG. The heating air duct 18a extends from the heating unit 18 toward the rear of the vehicle 1, over the upper side of the second cross member 10d, and extends to the space below the front passenger seat 14. As shown in FIG. Thereby, the heating air heated by the heating unit 18 is guided by the heating air duct 18a, blown rearward from the outlet 18b located below the passenger seat 14, and flows below the rear seat 16. - 特許庁

Next, as shown in FIG. 3, a battery cooling device 20 according to an embodiment of the present invention including a battery 22 is provided in the vehicle compartment C. This battery cooling device 20 is located in front of the front passenger seat 14 and It is arranged below the seat 14 . In other words, the battery 22 is disposed diagonally above the floor panel 24b immediately behind the dash panel 24a in the passenger compartment C so that the front side of the vehicle 1 is higher. located nearby. The battery 22 is configured to store electric power regenerated or generated by the motor/generator 4, and the stored electric power is used to drive the motor/generator 4 and to operate other in-vehicle electrical equipment (not shown). used for Details of the battery cooling device 20 will be described later.

A plate-shaped metal toe board 26 is arranged above the battery 22 to cover the battery 22 from above. That is, the battery 22 is arranged in front of the toe board 26 and the passenger seat 14 and below the passenger seat 14 . As a result, the battery 22 is arranged between the toeboard 26 and the floor panel 24b of the vehicle 1. As shown in FIG. The toe board 26 is arranged obliquely along the upper surface of the battery 22 so that the front side of the vehicle 1 is higher, and is positioned near the feet of the passenger seated on the front passenger seat 14. It can also be used as a footrest. In addition, the toe board 26 has sufficient strength so that the battery 22 is not damaged even when the vehicle 1 decelerates and receives a load from the feet of the passenger.

Next, a battery cooling device according to an embodiment of the present invention will be described with reference to FIGS. 4 to 7. FIG.
FIG. 4 is a side view showing the entire battery cooling device 20 according to an embodiment of the present invention. FIG. 5 is a front view showing the battery cooling device 20 according to this embodiment with the battery 22 and the toe board 26 removed. FIG. 6 is a perspective view showing wiring of a wire harness extending from the battery 22. As shown in FIG. FIG. 7 is a cross-sectional view showing the outlet of the exhaust duct of the battery cooling device 20 according to this embodiment.

As shown in FIGS. 4 and 5, the battery cooling device 20 includes a battery 22, a toe board 26 covering the battery 22 from above, a fixing member 28 fixing the battery cooling device 20 to a floor panel 24b, and the battery 22. and a battery bracket 30 for support. Further, the battery cooling device 20 includes an air intake duct 32 that is a cooling duct through which air for cooling the battery 22 flows, a cooling fan 34 that sends cooling air to the battery 22, and air after cooling the battery 22. and an exhaust duct 36 for exhausting into the chamber C. Furthermore, the battery cooling device 20 has a heat exchange chamber 38 (FIG. 5) that brings the air supplied from the intake duct 32 into contact with the case of the battery 22 to cool the battery.

In this embodiment, the battery 22 is a lithium-ion battery housed in a substantially rectangular parallelepiped metal case. The battery 22 has a large front surface 22a directed obliquely upward toward the front passenger seat 14, and the front surface 22a is covered with a toe board 26. - 特許庁A rear surface 22b on the opposite side of the front surface 22a is supported and fixed by a battery bracket 30. As shown in FIG.

The fixing member 28 is a member formed by pressing a metal plate, and is configured to fix the battery cooling device 20 to the vehicle 1 by bolting leg portions 28a and 28b to the floor panel 24b. ing. With this fixing member 28, the battery bracket 30 and the battery 22 are tilted and fixed with respect to the floor panel 24b.

The battery bracket 30 is a member formed by pressing a metal plate, and is configured to partially cover the side surfaces of the battery 22 . The battery bracket 30 is attached to the fixing member 28 and supports the battery 22 from the rear surface 22b side. As a result, the battery 22 is tilted and fixed so that the front surface 22a thereof becomes higher toward the front of the vehicle. The battery bracket 30 is also provided with arm portions 30 a , 30 b , and 30 c extending toward the front surface 22 a of the battery 22 . The toe board 26 is fixed above the front surface 22a of the battery 22 by these arm portions 30a, 30b, 30c. A bent portion 30d is formed at the end portion of the battery bracket 30 on the outer side in the vehicle width direction. partially covered.

As described above, the toe board 26 is a substantially rectangular plate-shaped member made of metal, and is mounted above the battery 22 in parallel with the front surface 22 a of the battery 22 . A bent portion 26a that is bent downward is formed at the outer end of the toe board 26 in the vehicle width direction. , and part of the cooling fan 34 are covered. In addition, a fragile portion 26b (FIG. 2) is provided at the inner end portion of the toe board 26 in the vehicle width direction. As shown in FIG. 2, the fragile portion 26b is provided in a portion adjacent to the tunnel portion 10a of the vehicle 1, and when the vehicle 1 collides with the side, the fragile portion 26b preferentially (other than the toeboard 26). (before the part) is to be deformed. The fragile portion 26b is formed to be thinner than other portions of the toe board 26 so that it can be easily deformed.

As shown in FIG. 6, a wire harness 23 for charging the battery 22 and supplying power from the battery 22 extends between the front surface 22a of the battery 22 and the toe board 26. As shown in FIG. 6 shows a state in which the toeboard 26, the driver's seat 12, the passenger's seat 14, etc. are removed. A wire harness 23 extending from the battery 22 extends inward in the vehicle width direction, over the tunnel portion 10a and toward the driver's seat. Further, the wire harness 23 extends below the floor panel 24b below the driver's seat 12 and is connected to the motor/generator 4 (FIG. 1) and the like in the front portion of the vehicle 1. As shown in FIG. Thus, the wire harness 23 passes through the space between the front surface 22 a of the battery 22 and the rear surface of the toe board 26 and is protected by the toe board 26 .

On the other hand, as shown in FIGS. 4 and 5, the intake duct 32 is an inverted L-shaped duct provided inside the battery 22 in the vehicle width direction. It consists of a vertical portion extending vertically downward from one end. At the tip of the horizontal portion, an intake port 32a for sucking air in the compartment C is provided downward.

The heat exchange chamber 38 is a thin box-shaped member arranged on the back surface 22 b of the battery 22 and configured to communicate with the lower end of the vertical portion of the intake duct 32 . The top side of the heat exchange chamber 38 is fully open, and the opening is closed by the rear surface 22b of the battery 22. As shown in FIG. Accordingly, when the air sucked through the air intake duct 32 flows into the heat exchange chamber 38, the air flows along the back surface 22b of the battery 22, and the battery 22 can be cooled.

The cooling fan 34 is a blower attached to the heat exchange chamber 38 on the opposite side of the intake duct 32 and is configured to blow cooling air for cooling the battery 22 . That is, the cooling fan 34 is arranged adjacent to the side surface of the battery 22 at the outer end of the heat exchange chamber 38 in the vehicle width direction. By activating the cooling fan 34 , the air in the passenger compartment C is sucked into the air intake duct 32 through the air intake port 32 a and reaches the cooling fan 34 through the heat exchange chamber 38 . The air that has cooled the battery 22 in the heat exchange chamber 38 is discharged into the passenger compartment C through the discharge duct 36 by the cooling fan 34 . Further, as shown in FIG. 4, the cooling fan 34 is arranged so that a part thereof overlaps the battery 22 when viewed from the side of the vehicle 1, so that the entire battery cooling device 20 is made compact. The cooling fan 34 is connected to a fan control device 34a (FIG. 4), and is activated when the temperature of the battery 22 rises above a predetermined temperature.

The exhaust duct 36 is a ventilation passage connected to the downstream side of the cooling fan 34 and is configured to exhaust air into the vehicle interior C after the battery 22 has been cooled in the heat exchange chamber 38 . That is, as shown in FIGS. 2 and 4, the exhaust duct 36 descends from the side surface of the battery 22 and then extends toward the rear of the vehicle 1 along the floor panel 24b. Furthermore, a discharge duct 36 extending rearward along the floor panel 24b extends into the space below the front passenger seat 14 over the second cross member 10d. That is, the discharge port 36a at the tip of the discharge duct 36 is located in the space below the front passenger seat 14. As shown in FIG. Further, since the distal end of the discharge duct 36 is curved outward in the vehicle width direction, the discharge port 36a at the distal end of the discharge duct 36 is directed toward the side member 10b.

In addition, as shown in FIGS. 2 and 7, a heating air duct 18a of a heating unit 18 also extends into the space below the front passenger seat 14. As shown in FIG. In this embodiment, the exhaust duct 36 is arranged outside the heating air duct 18a in the vehicle width direction, and the heating air duct 18a and the exhaust duct 36 are arranged so that they partially overlap when viewed from the side of the vehicle 1. It is In this way, the exhaust duct 36 extending from the outside in the width direction of the vehicle 1 is arranged outside the heating air duct 18a extending from the inside in the width direction. They do not intersect when viewed from above.

Here, the space below the front passenger seat 14 includes a floor panel 24b below, a seat cushion 14a of the front passenger seat 14 above, a tunnel portion 10a on the inner side in the vehicle width direction, and a side wall on the outer side in the vehicle width direction. The members 10b are arranged respectively, and these members form a space below the front passenger seat 14. As shown in FIG. Further, as shown in FIG. 2, a second cross member 10d is arranged on the front side of the vehicle 1 in the space below the front passenger seat 14, and a first cross member 10c is arranged on the rear side. Therefore, the discharge port 36a at the tip of the discharge duct 36 is positioned on the front side of the vehicle 1 relative to the first cross member 10c and to the rear side of the vehicle 1 relative to the second cross member 10d.

As described above, the outlet 36a through which the exhaust gas from the battery cooling device 20 is discharged is directed outward in the vehicle width direction, so the air discharged from the outlet 36a hits the surface (wall surface) of the side member 10b. It is diffused in the space below the front passenger seat 14 . By discharging the air from the discharge port 36a toward the wall surface forming the space below the passenger seat 14 in this way, the discharged air can be prevented from directly flowing out from the space below the passenger seat 14.例文帳に追加can be done. Therefore, the air discharged from the discharge port 36a is diffused and stays in the space below the front passenger seat 14, and gradually flows out from between the members at a low flow velocity. By discharging the air after cooling the battery 22 into the vehicle interior C while diffusing it in this manner, the occupant in the vehicle interior C is less likely to notice that the air is being discharged from the exhaust port 36a.

On the other hand, the outlet 18b of the heating air duct 18a opens toward the rear of the vehicle 1 in the space below the front passenger seat 14. As shown in FIG. Therefore, the warm air from the heating unit 18 is jetted from the space below the front passenger seat 14 directly behind the vehicle 1, efficiently guided below the rear seat 16, and the feet of the rear seat are heated. Further, in the present embodiment, the outlet 18b of the heating air duct 18a is arranged inside in the vehicle width direction with respect to the outlet 36a of the discharge duct 36, and the outlet 36a is directed outward in the vehicle width direction. . Therefore, it is possible to prevent the warm air from the outlet 18b and the exhaust from the exhaust port 36a from interfering with each other to adversely affect the heating, and to prevent the exhaust from the exhaust port 36a from directly going to the rear seat together with the warm air. can.

According to the battery cooling device 20 of the embodiment of the present invention, the discharge duct 36 extends to the space below the passenger seat 14, and the discharge port 36a is a wall surface forming the space below the passenger seat 14. 10b face (Fig. 7). Therefore, the air discharged from the discharge port 36a below the passenger seat 14 hits the wall surface below the passenger seat 14 and stays, and spreads into the vehicle compartment C from the space below the passenger seat 14 while being diffused. As a result, it is possible to prevent the air discharged from the discharge port 36a of the discharge duct 36 from directly hitting the occupant in the vehicle compartment C, so that the occupant's sense of discomfort and discomfort can be suppressed.

Further, according to the battery cooling device 20 of the present embodiment, the discharge duct 36 is arranged outside the heating air duct 18a in the vehicle width direction, and the discharge port 36a of the discharge duct 36 discharges air outward (FIG. 2). Therefore, the warm air from the heating air duct 18a and the warm air from the discharge duct 36 can be avoided from hitting the occupants in the rear seats directly. Therefore, it is possible to reliably prevent excessive warm air from being led to the rear seats and giving discomfort to passengers in the rear seats.

Furthermore, according to the battery cooling device 20 of the present embodiment, when viewed from the side of the vehicle 1, the discharge port 36a of the discharge duct 36 is arranged at a position overlapping the heating air duct 18a (FIGS. 2 and 7). , the heating air duct 18a and the discharge duct 36 can be arranged in a narrow space below the front passenger seat 14. As shown in FIG.

Further, according to the battery cooling device 20 of the present embodiment, since the discharge port 36a of the discharge duct 36 is arranged on the front side of the vehicle 1 with respect to the first cross member 10c (FIG. 2), the battery is discharged from the discharge port 36a. Since the discharged air hits the surface of the first cross member 10c as a wall surface forming the space below the front passenger seat 14, the discharged air can be effectively diffused. As a result, it is possible to prevent the air discharged from the discharge port 36a from directly hitting the occupant in the vehicle compartment C, so that the occupant's sense of discomfort and discomfort can be suppressed.

Furthermore, according to the battery cooling device 20 of the present embodiment, since the discharge port 36a of the discharge duct 36 is arranged on the rear side of the vehicle 1 relative to the second cross member 10d, the space below the front passenger seat 14 is It is possible to suppress the discharged air from flowing to the front side of the front passenger seat 14 . As a result, the air discharged into the space below the front passenger seat 14 can be diffused more widely, and discomfort and discomfort given to the occupant can be suppressed.

In addition, according to the battery cooling device 20 of the present embodiment, since the outlet 36a of the outlet duct 36 is directed toward the side member 10b, the air discharged from the outlet 36a is directed below the front passenger seat 14. As a wall surface forming the space of , the surface of the side member 10b can be effectively diffused. As a result, it is possible to prevent the air discharged from the discharge port 36a from directly hitting the occupant in the vehicle compartment C, so that the occupant's sense of discomfort and discomfort can be suppressed.

Although preferred embodiments of the present invention have been described above, various modifications can be made to the above-described embodiments. In particular, in the above-described embodiment, the present invention was applied to an FR vehicle in which an engine and a motor/generator are mounted in the front part of the vehicle, but the present invention can be applied to any type of vehicle in which a battery is mounted. can do.

In the above-described embodiment, the discharge port 36a of the discharge duct 36 arranged in the space below the front passenger seat 14 is directed outward in the vehicle width direction, and the exhaust gas flows toward the side member 10b. The discharge port 36a of the discharge duct 36 can also be oriented in other directions. That is, the discharge port 36a of the discharge duct 36 may face any wall surface forming the space below the front passenger seat. For example, the outlet of the exhaust duct can be directed inward in the vehicle width direction, and in this case, the exhaust gas is directed to the tunnel portion in the above-described embodiment. Alternatively, the exhaust duct outlet can be directed upward, directing the exhaust air toward the passenger seat cushion, or the exhaust duct outlet can be directed downward, directing the exhaust air toward the floor panel. can.

C Interior 1 Vehicle 2 Engine 4 Motor/Generator 6 Transmission 8 Wheel 10a Tunnel 10b Side member 10c First cross member 10d Second cross member 10e Seat rail 12 Driver seat 14 Passenger seat 14a Seat cushion 16 Rear seat 18 Heating unit 18a Heating air duct 18b Air outlet 20 Battery cooling device 22 Battery 22a Front surface 22b Rear surface 23 Wire harness 24a Dash panel 24b Floor panel 26 Toe board 26a Bent portion 26b Weak portion 28 Fixing members 28a, 28b Leg portion 30 Battery brackets 30a, 30b , 30c arm portion 32 intake duct (cooling duct)
32a Air intake 34 Cooling fan 34a Fan controller 36 Exhaust duct 36a Exhaust 38 Heat exchange chamber

Claims (8)

A cooling device for a battery mounted on a vehicle,
a battery mounted in the vehicle interior of the vehicle;
a discharge duct for discharging the air after cooling the battery into the cabin of the vehicle;
The vehicle is provided with a heating unit for heating the interior of the vehicle, and a heating air duct extending from the heating unit extends into the space below the front passenger seat and guides the heating air below the rear seats of the vehicle. configured as
The battery is disposed in front of a passenger seat of the vehicle and below the passenger seat of the vehicle, and the exhaust duct extends from the battery to a space below the passenger seat and the heating air duct . The battery cooling device is arranged on the outside in the vehicle width direction, and the outlet of the discharge duct discharges air toward the wall surface on the outside in the vehicle width direction that forms the space below the front passenger seat. Device. 2. The battery cooling device according to claim 1 , wherein the outlet of the exhaust duct is positioned so that at least a portion thereof overlaps the heating air duct when viewed from the side of the vehicle. The front passenger seat provided in the vehicle is supported by a front passenger seat rail, and the rear portion of the seat rail is attached to a first cross member extending in the vehicle width direction of the vehicle. 3. The battery cooling device according to claim 1, wherein the discharge port is arranged on the front side of the vehicle with respect to the first cross member. A front portion of the seat rail is attached to a second cross member extending in the vehicle width direction of the vehicle, and an exhaust port of the exhaust duct is arranged on the rear side of the vehicle relative to the second cross member. 4. The battery cooling system of claim 3 . 5. The vehicle according to any one of claims 1 to 4 , wherein a tunnel portion is provided inside the front passenger seat of the vehicle in the vehicle width direction, and an outlet of the exhaust duct is directed toward the tunnel portion. battery cooling system. 5. The battery cooling device according to any one of claims 1 to 4 , wherein the discharge port of the discharge duct is directed toward the seat cushion of the front passenger seat of the vehicle. 5. The battery cooling device according to any one of claims 1 to 4 , wherein a floor panel is provided below the front passenger seat of the vehicle, and an outlet of the exhaust duct is directed toward the floor panel. . 5. The vehicle according to any one of claims 1 to 4 , wherein a side member is provided outside the front passenger seat of the vehicle in the vehicle width direction, and the outlet of the exhaust duct is directed toward the side member. battery cooling system.

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