Battery pack

Patent metadata

Field	Value
Publication number	US-10270080-B2
Application number	US-201615343071-A
Country	US
Kind code	B2
Filing date	Nov 3, 2016
Priority date	Nov 4, 2015
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

A battery pack is disclosed. In one aspect, the battery pack includes a plurality of battery cells, a plurality of connection tabs electrically connected to the battery cells, and a circuit board having a plurality of connection holes respectively configured to receive the connection tabs. The connection holes include a plurality of first connection holes formed at first positions and each having a first width and a plurality of second connection holes formed at second positions and each having a second width greater than the first width.

First claim

What is claimed is:

1. A battery pack comprising:
a plurality of battery cells;
a plurality of connection tabs electrically connected to the battery cells; and
a circuit board having a plurality of connection holes respectively configured to receive the connection tabs, wherein the connection holes comprise a plurality of first connection holes formed at first positions and each having a first width and a plurality of second connection holes integrally formed with the first connection holes at second positions and each having a second width less than the first width, and wherein the connection tabs are configured to move from the first connection holes formed at the first positions to the second connection holes formed at the second positions.

2. The battery pack of claim 1 , wherein the battery cells comprise battery cells in first and second rows that are arranged to have a facing direction in which the battery cells in the first and second rows face each other as a longitudinal direction.

3. The battery pack of claim 1 , wherein the circuit board is disposed at a central position in a facing direction in which battery cells in first and second rows face each other.

4. The battery pack of claim 1 , wherein the connection tabs are formed at a central position in a facing direction in which battery cells in first and second rows face each other.

5. The battery pack of claim 4 , wherein the connection tabs are arranged closer to electrodes of the battery cells that face each other than electrodes of the battery cells that do not face each other.

6. The battery pack of claim 1 , further comprising a plurality of connection members connected to the connection tabs and electrically connected to the battery cells, wherein the connection tabs are bent upward from the connection members.

7. The battery pack of claim 1 , further comprising a plurality of connection pads formed around the second connection holes.

8. The battery pack of claim 1 , wherein the battery cells comprise:
a plurality of first battery cells in a first row and a plurality of second battery cells in a second row, wherein the first battery cells face the second battery cells; and
a plurality of third battery cells in a third row arranged in a direction crossing the direction in which the first and second battery cells are arranged.

9. The battery pack of claim 8 , wherein the circuit board is configured to slide, wherein the connection tabs comprise first through third connection tabs electrically connected to the battery cells in the first through third rows, wherein the first through third connection tabs are configured to move from the first connection holes to the second connection holes as the circuit board slides.

10. A battery pack comprising:
a plurality of battery cells in first and second rows arranged to face each other;
a circuit board configured to obtain state information from the battery cells; and
a plurality of connection tabs electrically connected to the battery cells in the first and second rows and inserted into the circuit board, wherein the connection tabs are formed closer to the center of the rows of batteries than edges of the rows of batteries,
wherein the circuit board has a plurality of connection holes into which the connection tabs are inserted, and wherein the connection holes comprise a plurality of first connection holes formed at first positions and each having a first width and a plurality of second connection holes integrally formed with the first connection holes at second positions and having a second width that is less than the first width, and wherein the connection tabs are configured to move from the first connection holes formed at the first positions to the second connection holes formed at the second positions.

11. The battery pack of claim 10 , wherein the connection tabs are arranged closer to electrodes of the battery cells that face each other than electrodes of the battery cells that do not face each other.

12. The battery pack of claim 10 , further comprising a plurality of connection members connected to the connection tabs and electrically connected to the battery cells, wherein the connection tabs are bent upward from the connection members.

13. The battery pack of claim 10 , wherein the circuit board is disposed at a central position in the facing direction of the battery cells in the first and second rows.

14. The battery pack of claim 10 , further comprising a plurality of connection pads formed around the second connection holes.

15. The battery pack of claim 10 , further comprising a plurality of battery cells in a third row arranged in a direction crossing the direction in which the first and second battery cells are arranged.

16. A battery pack comprising:
a plurality of battery cells arranged in first to third groups, wherein the battery cells of the first and second groups extend in a first direction, and wherein the battery cells of the third group extend in a second direction crossing the first direction;
a plurality of connection tabs electrically connected to the battery cells; and
a circuit board having a plurality of connection holes and placed over the first to third groups of the battery cells; wherein the connection holes are substantially linear and extend in the second direction, wherein the connection tabs are inserted into the connection holes, and wherein at least two of the connection holes have different widths,
wherein the connection holes comprise a plurality of first connection holes formed at first positions and each having a first width and a plurality of second connection holes integrally formed with the first connection holes at second positions and each having a second width less than the first width, and wherein the connection tabs are configured to move from the first connection holes formed at the first positions to the second connection holes formed at the second positions.

17. The battery pack of claim 16 , wherein the battery cells of the first and second groups respectively comprise a plurality of first electrodes and a plurality of second electrodes, wherein the first electrodes face the second electrodes, wherein the battery cells of the first and second groups respectively comprise a plurality of third electrodes and a plurality of fourth electrodes, wherein the third and fourth electrodes do not face each other, and wherein the connection tabs are located closer to the first and second electrodes than the third and fourth electrodes.

18. The battery pack of claim 1 , wherein the first and second widths are measured in a width direction of the circuit board, and wherein the connection tabs are configured to overlap only the second holes in the width direction, when the second connection tabs are placed in the second positions.

19. The battery pack of claim 18 , wherein the connection tabs are in direct physical contact with inner walls of the second connection holes, when the second connection tabs are placed in the second positions.

20. The battery pack of claim 1 , wherein the connection tabs are configured to move in a lengthwise direction of the circuit board.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Lee Haneul
• Yeoun Jechul

Classifications

• H01M10/4257 Primary

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

• H01M50/505

  comprising a single busbar · CPC title

• H01M50/284

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

• H01M2/105

  Electricity · mapped topic

• H01M2/1077

  Electricity · mapped topic