Battery wiring module

Patent metadata

Field	Value
Publication number	US-2021313656-A1
Application number	US-201917267274-A
Country	US
Kind code	A1
Filing date	Aug 26, 2019
Priority date	Aug 29, 2018
Publication date	Oct 7, 2021
Grant date	—

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

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 for accommodating the wires and the module-side terminals, wherein the housing includes: a wire accommodating portion for accommodating the wires; a plurality of terminal accommodating portions for accommodating the module-side terminals; and first elastic joining portions joining the wire accommodating portion and the terminal accommodating portions 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 a second elastic joining portion joining the terminal accommodating portions 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 accommodating portion and a terminal accommodating portion and a gap between the terminal accommodating portions 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 joining portion also serves as the blocking wall portion for blocking the gap between the terminal accommodating portions 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 wire accommodating portion includes a plurality of recesses in the direction in which the plurality of battery cells are aligned, the plurality of recesses being 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 accommodating portions are included in the recesses.

6 . The battery wiring module according to claim 1 ,
wherein the terminal accommodating portions and the wire accommodating portion include lead-in ports through which the wires are lead in from the terminal accommodating portions toward the wire accommodating portion, and at least either the lead-in ports on the terminal accommodating portion side or the lead-in ports on the wire accommodating portion side each include a protruding portion that protrudes in a direction away from the first elastic joining portion.

7 . The battery wiring module according to claim 6 , wherein the protruding portions are provided in both the lead-in ports on the terminal accommodating portion side and the lead-in ports on the wire accommodating portion side.

8 . The battery wiring module according to claim 7 , wherein the protruding portions provided in the lead-in ports on the terminal accommodating portion side have a protrusion length with respect to the first elastic joining portions that is longer than a protrusion length with respect to the first elastic joining portions of the protruding portions provided in the lead-in ports on the wire accommodating portion side.

9 . The battery wiring module according to claim 6 , wherein the lead-in ports are open in a direction intersecting a lead-in direction of leading in from the terminal accommodating portions to the wire accommodating portion side, and have leading end sides in the opening direction that are wider than base end sides.

10 . The battery wiring module according to claim 1 , wherein
the wire accommodating portion includes an extended wall portion that extends from an end portion in the direction in which the battery cells are aligned, and a plurality of the terminal accommodating portions are provided, and at least the terminal accommodating portion arranged opposing the extended wall portion in the direction in which the battery cells are aligned is joined on one side in the direction in which the battery cells are aligned by the first elastic joining portion, and is joined on another side in the direction in which battery cells are aligned by a third elastic joining portion that joins to the extended wall portion in an elastically-deformable manner.

11 . The battery wiring module according to claim 10 , wherein
the extended wall portion includes an opposing wall that opposes the terminal accommodating portion joined by the third elastic joining portion in the direction in which the battery cells are aligned, and the opposing wall includes a reinforcing rib.

Assignees

• Sumitomo Wiring Systems

Inventors

• Sato Hiroshi
• Mori Ryota
• Yaita Hisayoshi
• Suzuki Masami
• NAKASUKA Maya

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