Battery wiring module

Patent metadata

Field	Value
Publication number	US-9425520-B2
Application number	US-201214357703-A
Country	US
Kind code	B2
Filing date	Nov 1, 2012
Priority date	Nov 11, 2011
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

A battery wiring module may include a connecting member and a resin protector. The connecting member may be connected to an electrode terminal, and the connecting member may include a beveled corner. The resin protector may be made of insulating resin and include a holding portion and a coming-off preventing projection. The holding portion may hold the connecting member and may be provided with a surrounding wall that surrounds a peripheral edge of the connecting member. The coming-off preventing projection may include an elastic piece disposed cover the beveled corner of the connecting member and thereby limit movement of the connecting member.

First claim

The invention claimed is:

1. A battery wiring module comprising:
a connecting member connected to an electrode terminal and comprising a beveled corner; and
a resin protector made of insulating resin that comprises:
a holding portion for holding the connecting member, wherein the holding portion is provided with a surrounding wall that surrounds a peripheral edge of the connecting member, and
a coming-off preventing projection, wherein the coming-off preventing projection comprises an elastic piece that is disposed so as to cover the beveled corner of the connecting member and thereby limit movement of the connecting member.

2. The battery wiring module according to claim 1 ,
wherein a second coming-off preventing projection is provided on the surrounding wall of the holding portion and is disposed so as to cover a portion other than the beveled corner of the connecting member, and
wherein an insulating holding portion that maintains an insulating state of the connecting member is formed outside the surrounding wall of the holding portion, corresponding to the coming-off preventing portion.

3. The battery wiring module according to claim 1 ,
wherein a voltage detecting terminal is housed in the holding portion together with the connecting member, and
wherein a terminal locking portion provided at an inner wall of the surrounding wall so as to project or be recessed therefrom limits movement of the connecting member by locking the voltage detecting terminal.

4. The battery wiring module according to claim 2 ,
wherein a voltage detecting terminal is housed in the holding portion together with the connecting member, and
wherein a terminal locking portion provided at an inner wall of the surrounding wall so as to project or be recessed therefrom limits movement of the connecting member by locking the voltage detecting terminal.

5. The battery wiring module according to claim 1 , wherein the battery wiring module is attached to a single cell group obtained by lining up a plurality of single cells having a positive electrode terminal and a negative electrode terminal.

6. The battery wiring module according to claim 1 , wherein a height of the surrounding wall is higher than an upper edge portion of the electrode terminal.

7. The battery wiring module according to claim 1 , wherein no portion of the connecting member is exposed to an exterior surface of a back wall of the surrounding wall of the holding portion.

8. The battery wiring module according to claim 1 , wherein the coming-off preventing projection defines two slits, and wherein the elastic piece is disposed between the two slits.

9. The battery wiring module according to claim 8 , wherein when the elastic piece abuts the connecting member, the elastic piece elastically deforms toward an inside space of the coming-off preventing projection, and
wherein when the elastic piece does not abut the connecting member, the elastic piece returns to a state prior to the elastic deformation.

10. The battery wiring module according to claim 1 , wherein the movement of the connecting member is a vertical movement of the connecting member.

11. The battery wiring module according to claim 1 , wherein the resin protector further comprises a plurality of holding portions coupled together.

12. The battery wiring module according to claim 1 , wherein the resin protector comprises a plurality of integrated holding portions.

13. The battery wiring module according to claim 1 , further comprising at least two connecting members that have the same shape.

14. The battery wiring module according to claim 1 , further comprising at least two connecting members that have a different shape.

15. The battery wiring module according to claim 1 , wherein a terminal locking portion is formed on an inner surface of the surrounding wall by hollowing out a portion of the surrounding wall to the extent an opening is not formed in the surrounding wall.

16. The battery wiring module according to claim 1 , wherein the connecting member further comprises a plurality of beveled corners, and
wherein the resin protector further comprises a plurality of coming-off preventing projections corresponding to the plurality of beveled corners so that each respective coming-off preventing projection corresponds to each respective beveled corner.

17. A method for assembling a battery wiring module comprising:
inserting a connecting member into an opening of a holding portion so that a portion of the connecting member abuts an elastic piece provided on an inner wall of the holding portion and the elastic piece elastically deforms towards an exterior wall of the holding portion, and
after the inserting the connecting member into the opening of the holding portion, further inserting the connecting member into the opening of the holding portion so that the elastic piece elastically returns to a former state and thereby limits movement of the connecting member by extending over and covering a portion of the connecting member.

18. The method for assembling a battery wiring module according to claim 17 , wherein the connecting member is inserted into the opening of the holding portion in a vertical direction.

19. The method for assembling a battery wiring module according to claim 17 , wherein the connecting member is inserted into the opening of the holding portion in a horizontal direction.

20. The method for assembling a battery wiring module according to claim 17 , wherein the connecting member is inserted into the opening of the holding portion in a direction of assembly of the holding portion.

Assignees

• Autonetworks Technologies Ltd
• Sumitomo Electric Industries
• Sumitomo Wiring Systems

Inventors

• Kinoshita Yuko
• Morita Mitsutoshi

Classifications

• H01M10/48 Primary

  Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) · CPC title

• H01M50/507

  comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules · CPC title

• H01M50/503

  characterised by the shape of the interconnectors · CPC title

• H01M50/298

  characterised by the wiring of battery packs · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title