vehicle

Abstract

To provide a vehicle capable of absorbing positional deviation in a vehicle width direction of an exhaust duct, while improving a degree of freedom of an exhaust route.SOLUTION: A vehicle V includes a battery case 2, a battery module 3 stored in the battery case 2, and a cooling mechanism 5 for introducing air in a cabin into the battery case 2 and cooling the battery module 3, wherein the cooling mechanism 5 has an exhaust duct 53 for exhausting air from the battery case 2. The exhaust duct 53 has a first duct part 531 connected to the battery case 2, a second duct part 532 fixed to a floor panel F of the vehicle, and a plate-like connection member 533 for connecting the first duct part 531 and the second duct part 532. The second duct part 532 and the connection member 533 are fixed to a clip 533b in a state of being slidable with each other.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a vehicle in which electric equipment is cooled by air inside the vehicle compartment. [Background technology]

[0002] In recent years, efforts to realize a low-carbon or carbon-free society have become more active, and research and development into electrification technologies is being conducted in vehicles to reduce CO2 emissions and improve energy efficiency.

[0003] Vehicles such as electric vehicles and hybrid vehicles that use motors as their drive source are equipped with an electric power equipment unit that houses electric power equipment such as a battery. In these types of vehicles, to prevent performance degradation of the electric power equipment due to abnormal temperature rise, the electric power equipment is cooled by air taken in from the vehicle interior to maintain the temperature of the electric power equipment within an appropriate range.

[0004] For example, in the vehicle described in Patent Document 1, the air that has cooled the battery is returned to the passenger compartment from the exhaust duct through an extension duct. Also, in the vehicle described in Patent Document 1, a ring-shaped bellows-shaped connecting mechanism provided between the exhaust duct and the extension duct absorbs misalignment between the exhaust duct and the extension duct in the vehicle width direction. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-146801 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the annular bellows-shaped connecting mechanism seals the exhaust path, limiting the flexibility of the exhaust path. On the other hand, it is also necessary to accommodate misalignment of the exhaust duct in the vehicle width direction.

[0007] The present invention provides a vehicle that can accommodate misalignment of an exhaust duct in the vehicle width direction while improving the degree of freedom of the exhaust path. [Means for solving the problem]

[0008] The present invention provides Case and an electric power device housed in the case; a cooling mechanism that introduces air from within the vehicle cabin into the case to cool the electric power equipment, The cooling mechanism includes: Discharge the air from the case , installed outside the case It has an exhaust duct, The exhaust duct is a first duct portion connected to the case; a second duct portion fixed to a floor panel of the vehicle; a plate-shaped connecting member that connects the first duct portion and the second duct portion, the second duct portion and the connecting member are fixed by a fixing member that passes through a through hole of the second duct portion and a through hole of the connecting member, the fixing member is fitted into either the through hole of the second duct portion or the through hole of the connecting member, The other of the through hole of the second duct portion and the through hole of the connecting member is longer than the one of the through holes at least in the width direction of the vehicle. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a vehicle that can absorb misalignment of the exhaust duct in the vehicle width direction while improving the degree of freedom of the exhaust path. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram showing a vehicle V equipped with a battery pack 1 according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view of the battery pack 1. [Figure 3]FIG. 2 is an exploded perspective view of the battery pack 1. [Figure 4] 1 is an exploded perspective view of an exhaust duct 53 disposed on a floor panel F of a vehicle V. FIG. [Figure 5] 1 is a plan view of an exhaust duct 53 disposed on a floor panel F of a vehicle V. FIG. [Figure 6] 5 is a cross-sectional view showing a connecting portion between a first duct portion 531 and a second duct portion 532 of an exhaust duct 53. FIG. [Figure 7] 10 is a plan view of the main part showing the exhaust flow path of the exhaust duct 53. FIG. [Figure 8] 8 is a cross-sectional view taken along the line AA in FIG. 7. DETAILED DESCRIPTION OF THE INVENTION

[0011] An embodiment of the present invention will be described below with reference to Figures 1 to 8. The drawings are to be viewed in the direction of the reference symbols, and in the following description, front, rear, left, right, up and down refer to directions as seen from the driver, with the front of the vehicle indicated as Fr, the rear as Rr, the left as L, the right as R, the top as U, and the bottom as D.

[0012] [vehicle] As shown in FIG. 1, the vehicle V of this embodiment is an electric vehicle such as a hybrid vehicle, and is driven by an engine and a motor generator (not shown).

[0013] A battery pack 1 is placed on a floor panel F of a vehicle V, below a front seat 6 (i.e., a driver's seat and a passenger seat) arranged in a passenger compartment 7. For example, the battery pack 1 is housed in a recess formed in the floor panel F and fixed to the floor panel F or the vehicle frame. The battery pack 1 is connected to a motor generator via a DC line (not shown).

[0014] [Battery pack] 2 and 3, the battery pack 1 includes a battery case 2, battery modules 3 and electrical equipment 4 housed in the battery case 2, and a cooling mechanism 5 that introduces air from within the vehicle cabin into the battery case 2 to cool the battery modules 3. The electrical equipment 4 is, for example, a battery ECU (Electronic Control Unit), a junction box, etc.

[0015] The battery case 2 includes a case body 21 that has an open top and a closed bottom, and a lid 22 that covers the opening of the case body 21. The internal space of the battery case 2 accommodates a plurality of battery modules 3, electrical equipment 4, and a cooling fan 51 that is part of a cooling mechanism 5.

[0016] The cooling mechanism 5 includes case air intakes 26L, 26R formed in the battery case 2, upstream air intake ducts 55L, 55R that guide the air in the vehicle cabin that has been introduced into the internal space of the battery case 2 through the case air intakes 26L, 26R to the battery modules 3, a downstream air intake duct 50 that guides the air that has cooled the battery modules 3 to the cooling fan 51, the cooling fan 51, a case exhaust port 52 that is formed at the rear end of the battery case 2 and in the center in the vehicle width direction and that discharges the air that has cooled the battery modules 3 to the outside of the battery case 2, and an exhaust duct 53 that discharges the air discharged from the case exhaust port 52 into the vehicle cabin. The exhaust duct 53, which is a main part of the present invention, will be described below with reference to FIGS. 4 to 8.

[0017] As shown in Figures 4 and 5, the exhaust duct 53 is arranged along the vehicle width direction behind the battery case and includes a first duct portion 531 connected to the battery case 2, left and right second duct portions 532 arranged on the left and right outer sides of the first duct portion 531 and fixed to the floor panel F, and left and right connecting members 533 connecting the first duct portion 531 and the second duct portion 532.

[0018] The first duct portion 531 is provided with an inlet 531a connected to the case exhaust port 52 of the battery case 2 and introducing air discharged from the case exhaust port 52 into the inside of the first duct portion 531, left and right extension portions 531b extending in the vehicle width direction from the inlet 531a and directing the air introduced from the inlet 531a outward to the left and right, exhaust ports 531c (see Figure 7) discharging air outward from the tip ends (outer ends) of both extension portions 531b, a screw portion 531d fixing the first duct portion 531 to the battery case 2 near the inlet 531a, and a clip portion 531e fixing the first duct portion 531 to the floor panel F at the tip sides of both extension portions 531b.

[0019] In this embodiment, the first duct portion 531 is a flattened cylindrical member that independently forms a flow path for the air introduced from the inlet 531a, but it may also be a cover member that covers the floor panel F, forming a flow path between it and the floor panel F.

[0020] As shown in Figure 7, the second duct portion 532 faces the exhaust port 531c of the first duct portion 531 and is provided with an inlet port 532a that introduces air discharged from the exhaust port 531c into the inside of the second duct portion 532, an exhaust port 532b that discharges the air introduced from the inlet port 532a forward, and a screw portion 532c that fixes the second duct portion 532 to the floor panel F.

[0021] In this embodiment, the second duct portion 532 is a cover member that covers the floor panel F and forms an air flow path between it and the floor panel F, but it may also be a tubular member that forms an air flow path on its own.

[0022] The connecting member 533 is a plate-shaped member that covers the outer end of the first duct portion 531 and the inner end of the second duct portion 532 from above, and is fixed to the outer end of the first duct portion 531 via a screw portion 533a and to the second duct portion 532 via a clip 533b, thereby connecting the first duct portion 531 and the second duct portion 532.

[0023] 6, the clip 533b passes through the through hole 533c of the connecting member 533 and the through hole 532d of the second duct portion 532 from above and fits into the through hole 532d of the second duct portion 532, thereby fixing the connecting member 533 to the second duct portion 532. The through hole 533c of the connecting member 533 is longer than the through hole 532d of the second duct portion 532 in the vehicle width direction and the front-rear direction.

[0024] According to this configuration, by employing the plate-shaped connecting member 533, the degree of freedom in forming the flow passage is improved, unlike conventional annular and bellows-shaped connecting members. Also, misalignment in the vehicle width direction and longitudinal direction between the first duct portion 531 and the second duct portion 532 can be absorbed by the slide-permitting structure formed by the through-hole 533c of the connecting member 533. This improves the ease of installation when installing the connecting member 533 connected to the first duct portion 531 to the second duct portion 532 fixed to the floor panel F.

[0025] In the present embodiment, misalignment in the vehicle width direction and the front-rear direction between the first duct portion 531 and the second duct portion 532 is absorbed by making the through hole 533c of the connecting member 533 longer than the through hole 532d of the second duct portion 532 in the vehicle width direction and the front-rear direction, but misalignment in the vehicle width direction and the front-rear direction between the first duct portion 531 and the second duct portion 532 may be absorbed by making the through hole 532d of the second duct portion 532 longer than the through hole 533c of the connecting member 533. Furthermore, in the present embodiment, misalignment in the vehicle width direction and the front-rear direction between the first duct portion 531 and the second duct portion 532 can be absorbed, but the direction in which misalignment is absorbed may be only the vehicle width direction.

[0026] As shown in Figure 5, the exhaust duct 53 forms a first flow path R1 that discharges air discharged from the battery case 2 into the vehicle cabin via the first duct portion 531 and the second duct portion 532, and a second flow path R2 that discharges air discharged from the battery case 2 into the vehicle cabin via the first duct portion 531 but not via the second duct portion 532.

[0027] Such exhaust duct 53 disperses the exhaust air into the vehicle interior, reducing discomfort felt by occupants due to the exhaust air. As described above, second duct portion 532 is a cover member that covers floor panel F, and forms first flow path R1 between it and floor panel F. Therefore, by increasing the exhaust area and reducing the flow rate, the exhaust air can be appropriately controlled and abnormal noise can be suppressed.

[0028] 7, the second flow path R2 discharges air discharged from the battery case 2 into the vehicle interior through a gap that is covered from above by the connecting member 533 and that is provided between the first duct portion 531 and the second duct portion 532. In this way, the second flow path R2 can be easily formed.

[0029] Furthermore, the first flow path R1 and the second flow path R2 discharge the air discharged from the battery case 2 in different directions in the front-to-rear direction of the vehicle V. For example, the first flow path R1 discharges the air discharged from the battery case 2 toward the front of the vehicle, and the second flow path R2 discharges the air discharged from the battery case 2 toward the rear of the vehicle. This ensures that the exhaust air is dispersed throughout the vehicle interior, reducing discomfort to occupants caused by the exhaust air.

[0030] 7 and 8, a harness H is routed between the second duct portion 532 and the floor panel F along the front-rear direction of the vehicle V. For example, the second duct portion 532 of this embodiment has a recess 532e (see FIG. 4) at its rear end, and the harness H is pulled into a space between the second duct portion 532 and the floor panel F through this recess 532e.

[0031] Furthermore, a plurality of ribs 532f projecting downward are formed on the underside of the second duct portion 532, and these ribs 532f define the routing path of the harness H. For example, as shown in FIGS. 7 and 8, the harness H of this embodiment is routed between the second duct portion 532 and the floor panel F so as to be inclined in a plan view so as to move closer to the interior of the vehicle V as it approaches the front of the vehicle V, and so as to be inclined in a side view so as to move closer to the lower side as it approaches the front of the vehicle V. In this way, the second duct portion 532 can have a supporting function for the harness H.

[0032] The exhaust port 531c of the first duct portion 531 discharges the air exhausted from the battery case 2 toward the harness H. This makes it possible to control the direction of the exhaust air by using the harness H. For example, when the first flow path R1 hits the harness H, the air is distributed into an inner flow path R11 that passes inside (above) the harness H and an outer flow path R12 that passes outside (below) the harness H. This makes it possible to further distribute the exhaust air and further reduce discomfort to the occupants.

[0033] Furthermore, the exhaust port 531c of the first duct portion 531 has a branch portion 531f in the middle in the front-rear direction, where the exhaust port 531c branches into a first exhaust port 531c1 and a second exhaust port 531c2. The first exhaust port 531c1 is located forward of the exhaust port 531c and communicates with the inner flow path R11, while the second exhaust port 531c2 is located rearward of the first exhaust port 531c1 and communicates with the outer flow path R12. This ensures that the air discharged from the exhaust port 531c of the first duct portion 531 is dispersed into the inner flow path R11 and the outer flow path R12.

[0034] Although various embodiments have been described above with reference to the drawings, it goes without saying that the present invention is not limited to such examples. It is clear that a person skilled in the art can conceive of various modifications or alterations within the scope of the claims, and it is understood that these also naturally fall within the technical scope of the present invention. Furthermore, the components of the above-described embodiments may be combined in any manner without departing from the spirit of the invention.

[0035] This specification describes at least the following items. Note that the components in parentheses correspond to those in the above-described embodiment, but are not limited to these.

[0036] (1) Case (battery case 2) and an electric power device (battery module 3) accommodated in the case; a cooling mechanism (cooling mechanism 5) that introduces air from within the vehicle cabin into the case to cool the electric power equipment, The cooling mechanism includes: an exhaust duct (exhaust duct 53) for discharging the air from the case; The exhaust duct is a first duct portion (first duct portion 531) connected to the case; a second duct portion (second duct portion 532) fixed to a floor panel (floor panel F) of the vehicle; a plate-shaped connecting member (connecting member 533) that connects the first duct portion and the second duct portion, The second duct portion and the connecting member are fixed by a fixing member (clip 533b) that passes through a through hole (through hole 533c) of the second duct portion and a through hole (through hole 532d) of the connecting member, the fixing member is fitted into either the through hole of the second duct portion or the through hole of the connecting member, The other of the through hole of the second duct portion and the through hole of the connecting member is longer than the one of the through holes at least in the width direction of the vehicle. vehicle.

[0037] According to (1), by adopting a plate-shaped connecting member, the degree of freedom in forming the flow path is improved, unlike conventional annular and bellows-shaped connecting members. Furthermore, misalignment between the first duct portion and the second duct portion in the vehicle width direction can be absorbed by a slide mechanism formed by the through-holes of the second duct portion and the connecting member. This improves the ease of installation when installing the connecting member connected to the first duct portion to the second duct portion fixed to the vehicle body.

[0038] (2) The vehicle according to (1), The through hole of the connecting member is longer in the width direction of the vehicle than the through hole of the second duct portion. vehicle.

[0039] According to (2), by making the through hole of the connecting member longer in the vehicle width direction than the through hole of the second duct portion, it is possible to absorb misalignment between the first duct portion and the second duct portion in the vehicle width direction.

[0040] (3) A vehicle according to (1) or (2), The exhaust duct is a first flow path (first flow path R1) through which the air passes through the first duct portion and the second duct portion; a second flow path (second flow path R2) through which the air passes through the first duct portion but does not pass through the second duct portion; vehicle.

[0041] According to (3), the exhaust air can be dispersed, which makes it easier to control the temperature inside the vehicle cabin, and also eliminates or reduces discomfort felt by passengers due to exhaust air from the exhaust duct.

[0042] (4) A vehicle according to any one of (1) to (3), the exhaust duct has a first flow path (first flow path R1) through which the air passes through the first duct portion and the second duct portion, The second duct portion is a cover member that covers the floor panel (floor panel F) of the vehicle, and forms the first flow path between the second duct portion and the floor panel. vehicle.

[0043] According to (4), the exhaust area can be made large, so that the exhaust can be controlled by reducing the flow rate, and the generation of abnormal noise can be prevented.

[0044] (5) A vehicle according to any one of (1) to (4), A wiring (harness H) is routed between the second duct portion and the floor panel along the front-rear direction of the vehicle. vehicle.

[0045] According to (5), the second duct member can be provided with the function of supporting the wiring.

[0046] (6) A vehicle as described in (5), The exhaust port (exhaust port 531c) of the first duct portion is formed so as to discharge the air toward the wiring. vehicle.

[0047] According to (6), exhaust can be controlled using wiring.

[0048] (7) A vehicle as described in (6), When the air hits the wiring, the first flow path is divided into an inner flow path (inner flow path R11) that passes through the inside of the wiring and an outer flow path (outer flow path R12) that passes through the outside of the wiring. vehicle.

[0049] According to (7), the exhaust air can be further dispersed, and discomfort felt by the passengers due to the air conditioning can be eliminated or reduced.

[0050] (8) A vehicle according to any one of (1) to (7), The exhaust port of the first duct portion has a first exhaust port (first exhaust port 531c1) located in the front of the vehicle and communicating with the inner flow path, and a second exhaust port (second exhaust port 531c2) located behind the first exhaust port and communicating with the outer flow path. vehicle.

[0051] According to (8), it becomes easier to disperse exhaust gas.

[0052] (9) A vehicle as described in (3), The second flow path is such that the air passes through a gap that is covered by the connecting member and is provided between the first duct portion and the second duct portion. vehicle.

[0053] According to (9), the second flow path can be easily formed by not employing a ring-shaped structure.

[0054] (10) A vehicle according to (9), The first flow path and the second flow path discharge the air in different directions in the front-rear direction of the vehicle. vehicle.

[0055] According to (10), discomfort felt by passengers due to air conditioning can be eliminated or reduced. [Explanation of symbols]

[0056] 2 Battery case (case) 3 Battery module (power equipment) 5 Cooling mechanism 53 Exhaust duct 531 First Duct Section 531c exhaust port 531c1 First exhaust port 531c2 Second exhaust port 532 Second duct section 532d through hole 533 Connecting members 533b clip 533c through hole R1 First flow path R11 Inner flow passage R12 Outer channel R2 Second flow path F floor panel H harness (wiring)

Claims

1. Case and an electric power device housed in the case; a cooling mechanism that introduces air from within the vehicle cabin into the case to cool the electric power equipment, The cooling mechanism includes: an exhaust duct disposed outside the case for discharging the air from the case; The exhaust duct is a first duct portion connected to the case; a second duct portion fixed to a floor panel of the vehicle; a plate-shaped connecting member that connects the first duct portion and the second duct portion, the second duct portion and the connecting member are fixed by a fixing member that passes through a through hole of the second duct portion and a through hole of the connecting member, the fixing member is fitted into either the through hole of the second duct portion or the through hole of the connecting member, the other of the through hole of the second duct portion and the through hole of the connecting member is longer than the other through hole at least in the width direction of the vehicle; vehicle.

2. 2. The vehicle according to claim 1, the through hole of the connecting member is longer in the width direction of the vehicle than the through hole of the second duct portion; vehicle.

3. 3. A vehicle according to claim 1 or 2, The exhaust duct is a first flow path through which the air passes through the first duct portion and the second duct portion; a second flow path through which the air passes through the first duct portion but does not pass through the second duct portion; vehicle.

4. 3. A vehicle according to claim 1 or 2, the exhaust duct has a first flow path through which the air passes through the first duct portion and the second duct portion; The second duct portion is a cover member that covers the floor panel of the vehicle, and forms the first flow path between the second duct portion and the floor panel. vehicle.

5. 5. The vehicle according to claim 4, A wiring is routed between the second duct portion and the floor panel along the front-rear direction of the vehicle. vehicle.

6. 6. The vehicle according to claim 5, The exhaust port of the first duct portion is formed to discharge the air toward the wiring. vehicle.

7. 7. A vehicle according to claim 6, When the first flow path hits the wiring, the air is distributed into an inner flow path passing inside the wiring and an outer flow path passing outside the wiring. vehicle.

8. 8. A vehicle according to claim 7, The exhaust port of the first duct portion includes a first exhaust port located in the front of the vehicle and communicating with the inner flow path, and a second exhaust port located behind the first exhaust port and communicating with the outer flow path. vehicle.

9. 4. The vehicle according to claim 3, The second flow path is configured so that the air passes through a gap that is covered by the connecting member and is provided between the first duct portion and the second duct portion. vehicle.

10. 10. The vehicle according to claim 9, The first flow path and the second flow path discharge the air in different directions in the front-rear direction of the vehicle. vehicle.

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