Battery fitting structure
The battery mounting structure addresses the inefficiency of size-dependent mounting by using a unified structure with a fastening hole, bracket, cell damper, and mounting reference hole, allowing for flexible attachment and reduced road surface interference across different vehicle sizes.
Patent Information
- Application Number
- JP2023205639
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-05
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2043-12-05
AI Technical Summary
Existing battery mounting structures for vehicles require changes according to the size of the vehicle body, leading to inefficiencies and potential interference with the road surface.
A battery mounting structure that includes a fastening hole in the vehicle body, a bracket extending from the battery to the vehicle body, a cell damper between the bracket and the vehicle body, and a mounting reference hole inside the vehicle body, allowing for unified attachment regardless of vehicle size and reducing road surface interference.
Enables attachment of batteries to vehicles without altering the mounting structure based on vehicle size, while minimizing interference with the road surface, even in vehicles with varying wheelbases.
Smart Images

Figure 2025090431000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a battery mounting structure for a vehicle.
Background Art
[0002] Reference Document 1 describes a structure for mounting a battery under the floor of a vehicle.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] Generally, a battery is attached to a vehicle by passing a pin through a mounting hole. However, since the position of the mounting hole can vary depending on the size of the vehicle body, it is necessary to change the mounting structure according to the size of the vehicle body.
[0005] An object of the present disclosure is to enable a battery to be attached to a vehicle without changing the mounting structure according to the size of the vehicle body. Another object is to reduce interference from the road surface.
Means for Solving the Problems
[0006] One aspect of the present disclosure is a battery mounting structure for mounting a battery under the floor of a vehicle, including a fastening hole formed in the vehicle body for attaching the battery, a bracket provided from the battery toward the vehicle body, and a sell damper provided between the bracket and the vehicle body, and a mounting reference hole is formed inside the vehicle body relative to the fastening hole.
Effects of the Invention
[0007] According to the present disclosure, the battery can be attached to the vehicle without changing the attachment structure according to the size of the vehicle body. Further, interference from the road surface can be reduced.
Brief Description of the Drawings
[0008]
Figure 1
Figure 2
Figure 3
Mode for Carrying Out the Invention
[0009] FIG. 1 is a view when the vehicle 100 is seen from the left side. In FIG. 1, “FR” indicates the front of the vehicle, and “UP” indicates the upper side of the vehicle.
[0010] For example, the vehicle 100 is a vehicle such as an electric vehicle or a hybrid vehicle. The vehicle 100 has a vehicle body 102, and the battery 104 is mounted under the floor of the vehicle 100 (that is, the lower surface of the vehicle body 102). As will be described later, in the present embodiment, by using a cell damper, it is possible to prevent the battery 104 from hitting the vehicle body 102 due to vibration from the road surface 106.
[0011] FIG. 2 is a view showing the battery mounting facility 108. The battery mounting facility 108 includes the battery 104 and is mounted under the floor of the vehicle 100 as shown in FIG. 1. For example, the battery mounting facility 108 is mounted under the floor of the vehicle 100 by a support member 110 provided on the front side of the vehicle and a support member 112 provided on the rear side of the vehicle. For example, the support members 110 and 112 are pin-shaped members.
[0012] When the size of the vehicle 100 changes (that is, when the wheelbase changes), the position of the attachment points (for example, fastening holes) of the battery-mounted equipment 108 changes. For example, in a vehicle with a short wheelbase, position A is the attachment point of the support member 112, and in a vehicle with a long wheelbase, position B (a position behind the vehicle compared to position A) is the attachment point of the support member 112.
[0013] FIG. 3 is a cross-sectional view showing the battery mounting structure 10 according to the embodiment. The battery mounting structure 10 is a structure for mounting the battery 104 under the floor of the vehicle 100 (that is, the lower surface of the vehicle body 102).
[0014] The battery mounting structure 10 has a bracket 12. The bracket 12 is attached to the rear side of the vehicle 100 in the battery 104 and is provided from the battery 104 toward the vehicle body 102. A fastening hole 14 as an attachment point is formed on the upper surface of the bracket 12. When mounting the battery 104 to the vehicle body 102 in a vehicle 100 with a long wheelbase, the support member 112 is inserted into and fixed to the fastening hole 14.
[0015] A bracket 16 is provided on the lower surface of the vehicle body 102. A mounting reference hole 18 is formed in the bracket 16. When mounting the battery 104 to the vehicle body 102 in a vehicle with a short wheelbase, the support member 112 is inserted into and fixed to the mounting reference hole. The bracket 16 is provided inside the vehicle body 102 (that is, on the front side of the vehicle 100) compared to the fastening hole 14. As a result, the mounting reference hole 18 is formed inside the vehicle body 102 (that is, on the front side of the vehicle 100) compared to the fastening hole 14.
[0016] A gap is formed between the bracket 12 and the bracket 16. At the position of the gap, the upper surface of the bracket 12 functions as the contact surface of the cell damper 20. The cell damper 20 is provided between the bracket 12 and the bracket 16. By providing the cell damper 20, it is possible to suppress a decrease in rigidity due to the overhang of the bracket 12. Note that the cell damper 20 may not be provided.
[0017] In FIG. 3, bracket 22 is shown by a dashed line. Bracket 22 is a member that was used before extending the wheelbase. Mounting reference hole 18 is formed at the same position as the fastening portion formed in bracket 22 before the extension. By doing so, even in the vehicle 100 with a short wheelbase, the battery can be mounted on the vehicle 100.
[0018] As described above, in the battery mounting structure 10 according to the present embodiment, the fastening hole 14 and the mounting reference hole 18 are formed. Thereby, even if the types of battery mounting facilities 108 increase according to the length of the wheelbase, the battery 104 can be attached to the vehicle 100 without changing the battery mounting structure 10. That is, the battery mounting facilities can be unified. Further, by providing the cell damper 20 between the bracket 12 and the vehicle body 102, the interference from the road surface 106 can be reduced. For example, even in the vehicle 100 with a low vehicle height, the interference from the road surface 106 can be reduced.
Explanation of reference numerals
[0019] 10 Battery mounting structure, 12, 16 Brackets, 14 Fastening hole, 18 Mounting reference hole, 20 Cell damper.
Claims
【Claim 1】 In a battery mounting structure for mounting a battery under the floor of a vehicle, a fastening hole for mounting the battery to the vehicle body is formed, a bracket provided from the battery toward the vehicle body, a cell damper provided between the bracket and the vehicle body, and having, a mounting reference hole is formed inside the vehicle body relative to the fastening hole, a battery mounting structure.
Citation Information
Patent Citations
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Battery pack for driving electric vehicle
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