Battery module

Patent metadata

Field	Value
Publication number	US-9761848-B2
Application number	US-201414561125-A
Country	US
Kind code	B2
Filing date	Dec 4, 2014
Priority date	Dec 9, 2013
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

A battery module includes a plurality of unit batteries, a holder accommodating the unit batteries and including a pin extending from the holder, a protective circuit module electrically coupled to the plurality of unit batteries, and a coupling member coupled to the pin to fix the protective circuit module to the holder. The holder may include a boss supporting the protective circuit module. The protective circuit module may define a coupling opening configured to receive the pin.

First claim

What is claimed is:

1. A battery module comprising:
a plurality of unit batteries;
a holder accommodating the unit batteries, the holder comprising a boss comprising an electrically insulating material and a pin having a smooth exterior surface comprising an electrically conductive material, the pin being coupled to the holder by an interference fit and extending from the holder;
a protective circuit module electrically coupled to the plurality of unit batteries; and
a coupling member coupled to the pin to fix the protective circuit module to the holder.

2. The battery module of claim 1 , wherein the pin comprises a metallic material and the coupling member comprises a metallic material, and wherein the pin and the coupling member are coupled to each other by a weld or by solder in which at least one of the pin and the coupling member has been melted and solidified.

3. The battery module of claim 1 , wherein the pin and the holder are integrally formed by insert molding.

4. The battery module of claim 1 , wherein the boss supports the protective circuit module.

5. The battery module of claim 1 , wherein the pin is on the boss and integrally formed with the boss.

6. The battery module of claim 1 , wherein the coupling member comprises a solder material.

7. The battery module of claim 6 , wherein the protective circuit module defines a coupling opening accommodating the pin.

8. The battery module of claim 7 , wherein the coupling member is coupled to the pin such that the protective circuit module is between the holder and the coupling member.

9. The battery module of claim 7 , wherein the coupling opening has a v-shaped cross section with a downwardly decreasing inner diameter.

10. The battery module of claim 1 , wherein the coupling member comprises a metal piece on the protective circuit module.

11. The battery module of claim 10 , wherein the protective circuit module defines a coupling opening, and the metal piece is on the coupling opening.

12. The battery module of claim 10 , wherein the metal piece and the pin are coupled to each other by welding.

13. The battery module of claim 10 , wherein the protective circuit module defines a coupling opening, and the metal piece is positioned to correspond with the coupling opening.

14. The battery module of claim 13 , wherein the metal piece extends over the coupling opening.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Cho Su-Sang
• Gu Eun-Gyeong

Classifications

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title

• H01M10/4257 Primary

  Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries · CPC title

• H01M50/284

  with incorporated circuit boards, e.g. printed circuit boards [PCB] · CPC title

• H01M50/213

  adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) · CPC title