Energy storage device

The energy storage device employs rib structures on members to absorb dimensional variations, enabling easy alignment and assembly by addressing alignment challenges in conventional battery modules.

DE112023003540T5Pending Publication Date: 2025-07-31GS YUASA INT LTD
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Patent Information

Application Number
DE112023003540
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-08-23
Publication Date
2025-07-31

AI Technical Summary

Technical Problem

Conventional battery modules face challenges in positioning three members due to dimensional variations, particularly in the horizontal direction, which are not adequately addressed by snap fits, leading to alignment difficulties.

Method used

An energy storage device design featuring first and second members with protruding ribs that contact each other in a specific direction, allowing for absorption of dimensional variations, ensuring easy alignment of the three members.

Benefits of technology

The design effectively absorbs dimensional variations between the members, facilitating easy positioning and assembly of the energy storage device components.

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Abstract

An energy storage device comprises: an energy storage device;and a first member, a second member, and a third member placed in a first direction with respect to the energy storage device and placed to be aligned in the first direction, the second member being placed between the first member and the third member, the first member and / or the second member comprising a first rib projecting toward the other of the first member or the second member in a second direction crossing the first direction, the first rib being in contact with the other member in the second direction, and the second member and / or the third member comprising a second rib projecting toward the other of the second member or the third member in the second direction or in a third direction crossing the first direction and the second direction, the second rib being in contact with the other member in the second direction or the third direction.
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Claims

[1] Energy storage device comprising: an energy storage device, and a first member, a second member, and a third member placed in a first direction with respect to the energy storage device and placed to be aligned in the first direction, wherein: the second link is placed between the first link and the third link, the first member and / or the second member comprises a first rib projecting toward the other of the first member or the second member in a second direction crossing the first direction, the first rib being in contact with the other member in the second direction, and the second member and / or the third member comprises a second rib projecting toward the other of the second member or the third member in the second direction or in a third direction crossing the first direction and the second direction, the second rib being in contact with the other member in the second direction or the third direction. [2] Energy storage device according to claim 1, wherein: the first member and / or the second member comprises two first ribs including the first rib receiving the other of the first member or the second member therebetween in the second direction. [3] Energy storage device according to claim 1 or 2, wherein: the first rib and the second rib are placed at overlapping positions as seen from the first direction. [4] Energy storage device according to claim 1 or 2, wherein: the second link comprises the first rib and the second rib and has a lower stiffness than the first link and the third link. [5] Energy storage device according to claim 1 or 2, wherein: the first member is a busbar holder holding a busbar or a housing in which the energy storage device is accommodated.

Citation Information

Patent Citations

  • Battery module including cover assembly

    JP2019519886A