Battery wiring module including elastic joiners

Patent metadata

Field	Value
Publication number	US-11289775-B2
Application number	US-201916539272-A
Country	US
Kind code	B2
Filing date	Aug 13, 2019
Priority date	Aug 29, 2018
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

Provided is a battery wiring module according to which a load that acts on module-side terminals accompanying expansion or contraction of battery cells can be reduced. A housing includes: a wire accommodating portion for accommodating wires; multiple terminal accommodating portions for accommodating module-side terminals; and first elastic joining portions that join the wire accommodating portion and the terminal accommodating portions in an elastically-deformable manner in the direction in which the battery cells are aligned.

First claim

What is claimed is:

1. A battery wiring module comprising:
module-side terminals that are electrically connected to bus bars connecting battery terminals of a plurality of battery cells;
wires with ends on one side connected to the module-side terminals; and
a housing to accommodate the wires and the module-side terminals,
wherein the housing includes:
a wire holder that includes a bottom and sidewalls extending from the bottom, and the wire holder routes the wires through a space at least partially contained by the bottom and the sidewalls of the wire holder;
a plurality of terminal holders that include bottoms and sidewalls extending from the bottoms, and the terminal holders accommodate the module-side terminals in spaces at least partially contained by the bottoms and sidewalls of the terminal holders; and
first elastic joiners that directly connect the sidewalls of the wire holder and the sidewalls of the terminal holders in a direction in which the battery cells are aligned, in an elastically-deformable manner.

2. The battery wiring module according to claim 1 , comprising second elastic joiners that join the terminal holders that are adjacent to each other in the direction in which the battery cells are aligned, in an elastically-deformable manner.

3. The battery wiring module according to claim 2 , wherein the housing includes blocking wall portions that each block at least one of a gap between the wire holder and one of the terminal holders and a gap between the terminal holders that are adjacent to each other in the direction in which the battery cells are aligned.

4. The battery wiring module according to claim 3 , wherein the second elastic joiners also serve as the blocking wall portions to block the gaps between the terminal holders that are adjacent to each other in the direction in which the battery cells are aligned.

5. The battery wiring module according to claim 1 , wherein the housing includes blocking wall portions that each block at least one of a gap between the wire holder and one of the terminal holders and a gap between the terminal holders that are adjacent to each other in the direction in which the battery cells are aligned.

6. The battery wiring module according to claim 1 , wherein the wire holder includes a plurality of recesses that are recessed in a direction that is orthogonal to the direction in which the plurality of battery cells are aligned, and that is orthogonal to a direction of stacking the housing on the battery cells, and the terminal holders are included in the recesses.

7. The battery wiring module according to claim 1 , wherein the first elastic joiners each include an S-shaped structure.

Assignees

• Sumitomo Wiring Systems

Inventors

• Mori Ryota

Classifications

• H01M50/503 Primary

  characterised by the shape of the interconnectors · CPC title

• H01M50/572 Primary

  Means for preventing undesired use or discharge · CPC title

• H01M50/516

  by welding, soldering or brazing · CPC title

• H01M50/505

  comprising a single busbar · CPC title

• H01M50/298

  characterised by the wiring of battery packs · CPC title