Vehicle

The vehicle design addresses interference between a battery and blower by positioning the battery below the seat and using a deformable seat support to prevent collision-induced contact.

JP2025094751APending Publication Date: 2025-06-25TOYOTA JIDOSHA KK
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Patent Information

Application Number
JP2023210487
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-13
Publication Date
2025-06-25

AI Technical Summary

Technical Problem

Existing vehicle designs do not adequately address interference between a battery and a blower due to displacement caused by a rear-side collision load, which can occur when the battery generates heat and is cooled by a blower positioned in front.

Method used

A vehicle design featuring a battery positioned below a seat, a blower on the front side, and a seat support portion that overlaps the battery and blower, with a vulnerable portion having lower rigidity to allow deformation and create space between them during a rear-side collision.

Benefits of technology

Suppresses interference between the battery and blower by allowing the seat support portion to deform and push the blower forward, maintaining a space between the two components during a rear-side collision.

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    Figure 2025094751000001_ABST
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Abstract

To provide a vehicle suppressing interference between a battery and a blower when a collision load is input from a vehicle rear side.SOLUTION: A vehicle 10 includes: a battery 16 disposed below a rear seat 14; a blower 18 disposed on a vehicle front side of the battery 16 and also capable of sending air to the side of the battery 16; and a seat support part 22 which supports the rear seat 14 from the vehicle lower side and is disposed between the battery 16 and the blower 18 in the vehicle longitudinal direction so that the battery 16 and the blower 18 are superimposed on each other when seen from the vehicle longitudinal direction, and in which a fragile site 24 having rigidity to the load from the vehicle rear side smaller than that of other parts is provided.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to a vehicle.

Background Art

[0002] Patent Document 1 below discloses an invention related to a battery mounting structure. In this battery mounting structure, a battery is disposed below the vehicle of the rear seat. The battery has its lower front edge fastened to the rear floor panel, and its lower rear edge is detachably attached to the rear floor panel by a load from the rear side of the vehicle.

[0003] In addition, a vertical wall portion constituting a part of the rear floor panel is disposed on the rear side of the vehicle of this battery, and a fuel tank is disposed on the rear side of the vehicle of this vertical wall portion. Therefore, even if a collision load from the rear side of the vehicle is input to the fuel tank and the fuel tank collides with the rear floor panel, the battery has its lower rear edge detached from the rear floor panel, so that the transmission of the collision load from the fuel tank side to the battery side is suppressed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, since the battery generates heat during discharge, it is necessary to arrange a blower for cooling the battery. However, if the blower is arranged on the front side of the vehicle of the battery, it is conceivable that the battery is displaced to the front side of the vehicle by a collision load from the rear side of the vehicle, and the battery and the blower interfere with each other.

[0006] However, Patent Document 1 does not disclose any means for suppressing interference between the battery and the blower when a collision load is input from the rear side of the vehicle, and the prior art described in Patent Document 1 has room for improvement in this regard.

[0007] In view of the above facts, an object of the present invention is to provide a vehicle capable of suppressing interference between a battery and a blower when a collision load is input from the rear side of the vehicle.

Means for Solving the Problems

[0008] A vehicle according to a first aspect includes a battery disposed below a vehicle seat, a blower disposed on the front side of the vehicle of the battery and capable of blowing air toward the battery side, a seat support portion that supports the vehicle seat from below the vehicle and is disposed so as to overlap the battery and the blower in the vehicle front-rear direction when viewed from the vehicle front-rear direction between the battery and the blower, and a vulnerable portion provided with lower rigidity against a load from the rear side of the vehicle than other portions.

[0009] According to the vehicle according to the first aspect, a battery is disposed below the vehicle seat, and a blower is disposed on the front side of the vehicle of the battery. Therefore, the battery that has generated heat during discharge can be cooled by blowing air from the blower toward the battery side.

[0010] By the way, when a collision load is input from the rear side of the vehicle, it is conceivable that the battery is displaced toward the front side of the vehicle by this collision load, and the battery and the blower interfere with each other.

[0011] Here, in this aspect, a seat support portion that supports the vehicle seat from below the vehicle is provided, and the seat support portion is disposed so as to overlap the battery and the blower in the vehicle front-rear direction when viewed from the vehicle front-rear direction between the battery and the blower. Further, a vulnerable portion is provided in the seat support portion, and this vulnerable portion has lower rigidity against a load from the rear side of the vehicle than other portions in the seat support portion.

[0012] Therefore, when a collision load from the rear side of the vehicle is input to the battery, the battery is displaced toward the front side of the vehicle, and a load is input from the battery to the seat support portion. At this time, the seat support portion is bent and deformed so as to protrude toward the front side of the vehicle with the vulnerable portion as a starting point, and the blower is pushed out toward the front side of the vehicle, so that a space is secured between the battery and the blower.

Advantages of the Invention

[0013] As described above, the vehicle according to the present invention has an excellent effect that interference between the battery and the blower can be suppressed when a collision load from the rear side of the vehicle is input.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Mode for Carrying Out the Invention

[0015] Hereinafter, an example of an embodiment of a vehicle according to the present invention will be described with reference to FIGS. 1 and 2. Note that the arrow FR appropriately shown in each figure indicates the front side of the vehicle, the arrow UP indicates the upper side of the vehicle, and the arrow RH indicates the right side in the vehicle width direction.

[0016] First, a schematic configuration of the "vehicle 10" according to the present embodiment will be described. As shown in FIG. 1, the vehicle 10 includes a vehicle body 12, a "rear seat 14" as a vehicle seat, a "battery 16" and a "blower 18" capable of supplying power to various devices mounted on the vehicle 10.

[0017] The vehicle body 12 has a floor portion 19 that forms the lower part of the vehicle, and the floor portion 19 includes a rear floor panel 20 that forms the rear part of the vehicle and is formed by pressing a steel plate. This rear floor panel 20 is composed of a first panel portion 20A, a first vertical wall portion 20B, a second panel portion 20C, a second vertical wall portion 20D, and a third panel portion 20E.

[0018] Specifically, the first panel portion 20A forms the front part of the rear floor panel 20 in the vehicle, and extends in the vehicle front-rear direction and the vehicle width direction when viewed from the vehicle vertical direction. And a first vertical wall portion 20B extends upward from the peripheral edge portion on the rear side of the vehicle of the first panel portion 20A.

[0019] The second panel portion 20C extends rearward from the peripheral edge portion on the upper side of the vehicle of the first vertical wall portion 20B, and extends in the vehicle front-rear direction and the vehicle width direction when viewed from the vehicle vertical direction. And a second vertical wall portion 20D extends upward from the peripheral edge portion on the rear side of the vehicle of the second panel portion 20C.

[0020] The third panel portion 20E extends rearward from the peripheral edge portion on the upper side of the vehicle of the second vertical wall portion 20D, and extends in the vehicle front-rear direction and the vehicle width direction when viewed from the vehicle vertical direction.

[0021] And the rear part of the seat cushion 14A of the rear seat 14 is supported by the third panel portion 20E, and the front part of the seat cushion 14A is supported from below the vehicle by the first vertical wall portion 20B via a "seat support portion 22" described later.

[0022] The battery 16 is disposed below the vehicle of the seat cushion 14A and is supported from below the vehicle by the second panel portion 20C. This battery 16 includes a battery case 16A that serves as its outer shell and a plurality of battery stacks (not shown) housed inside the battery case 16A.

[0023] Further, the battery 16 is attached to the second panel portion 20C by an attachment member (not shown), and in a state where most of it overlaps with the second vertical wall portion 20D when viewed in the vehicle longitudinal direction.

[0024] The blower 18 is disposed on the vehicle front side of the battery 16 and is capable of blowing air toward the battery 16 when it operates. The blower 18 is attached via a pedestal portion (not shown) to the first panel portion 20A.

[0025] Next, the configuration of the seat support portion 22 will be described. This seat support portion 22 is made of steel and includes a base wall portion 22A, a pair of side wall portions 22B, and a pair of bulging portions 22C as shown in FIG. 2(A).

[0026] Specifically, the base wall portion 22A extends in the vehicle vertical direction with the plate thickness direction being the vehicle longitudinal direction, and the side wall portions 22B are provided respectively at the peripheral edges on one side and the other side in the vehicle width direction of the base wall portion 22A, and extend along the base wall portion 22A with the plate thickness direction being the vehicle width direction.

[0027] The bulging portion 22C is provided along the boundary between the base wall portion 22A and the side wall portion 22B, and has a cross-sectional shape that is convex toward the vehicle front side and curved in an arc shape when viewed in the vehicle vertical direction.

[0028] Also, the central portion in the vehicle vertical direction at the vehicle rear side peripheral edge of the side wall portion 22B has an arc shape that is convex toward the vehicle front side when viewed in the vehicle width direction, and the side wall portion 22B has a shorter width at the central portion in the vehicle vertical direction compared to other portions of the side wall portion 22B. That is, the central portion in the vehicle vertical direction of the seat support portion 22 is a "weak portion 24" with lower rigidity against loads from the vehicle rear side than other portions of the seat support portion 22.

[0029] And the seat support portion 22 configured as described above is arranged in a pair at intervals in the vehicle width direction. Further, the upper portion of the seat support portion 22 on the vehicle side is fixed to the front portion of the vehicle of the seat cushion frame 26 that constitutes the skeleton of the seat cushion 14A, and the lower portion of the seat support portion 22 on the vehicle side is fixed to the first vertical wall portion 20B of the rear floor panel 20. That is, the seat support portion 22 is arranged between the battery 16 and the blower 18 in the vehicle front-rear direction.

[0030] Also, at least one of the pair of seat support portions 22 is arranged so as to overlap the battery 16 and the blower 18 when viewed from the vehicle front-rear direction. Note that the cross-sectional shape of the seat support portion 22 when viewed from the vehicle up-down direction may be a U-shape with the rear side of the vehicle open as shown in FIG. 2(B), or may be an L-shape as shown in FIG. 2(C).

[0031] (Actions and Effects of this Embodiment) Next, the actions and effects of this embodiment will be described.

[0032] In this embodiment, as shown in FIG. 1, the battery 16 is arranged below the rear seat 14, and the blower 18 is arranged on the front side of the vehicle of this battery 16. Therefore, the battery 16 that has generated heat during discharge can be cooled by blowing air from the blower 18 toward the battery 16 side.

[0033] By the way, when a collision load is input from the rear side of the vehicle, it is conceivable that the battery 16 and the blower 18 interfere with each other when the battery 16 is displaced toward the front side of the vehicle due to this collision load.

[0034] Here, in the present embodiment, a seat support portion 22 for supporting the rear seat 14 from below the vehicle is provided, and the seat support portion 22 is arranged between the battery 16 and the blower 18 in the vehicle front-rear direction so as to overlap the battery 16 and the blower 18 when viewed from the vehicle front-rear direction. Further, a weak portion 24 is provided in the seat support portion 22, and this weak portion 24 has lower rigidity against loads from the rear side of the vehicle than other portions in the seat support portion 22.

[0035] Therefore, when a collision load from the rear side of the vehicle is input to the battery 16, the battery 16 is displaced toward the front side of the vehicle, and a load is input from the battery 16 to the seat support portion 22. At this time, the seat support portion 22 is bent and deformed so as to be convex toward the front side of the vehicle with the weak portion 24 as a starting point, and the blower 18 is pushed out toward the front side of the vehicle, so that a space is secured between the battery 16 and the blower 18.

[0036] In this way, in the present embodiment, interference between the battery 16 and the blower 18 can be suppressed when a collision load from the rear side of the vehicle is input.

Explanation of Reference Numerals

[0037] 10 Vehicle 14 Rear Seat (Vehicle Seat) 16 Battery 18 Blower 22 Seat Support Portion 24 Weak Portion

Claims

【Claim 1】 A battery disposed below a vehicle seat; A blower disposed on the front side of the vehicle of the battery and capable of blowing air toward the battery side; A seat support portion that supports the vehicle seat from below the vehicle and is disposed between the battery and the blower in the vehicle front-rear direction so as to overlap the battery and the blower when viewed from the vehicle front-rear direction, and is provided with a vulnerable portion having lower rigidity against loads from the rear side of the vehicle than other portions; A vehicle having the above components.

Citation Information

Patent Citations

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