Battery pack

Patent metadata

Field	Value
Publication number	US-9356266-B2
Application number	US-201314025757-A
Country	US
Kind code	B2
Filing date	Sep 12, 2013
Priority date	Dec 21, 2012
Publication date	May 31, 2016
Grant date	May 31, 2016

Abstract

A battery pack includes a battery cell; a case comprising a first case and a second case coupled together and accommodating the battery cell, wherein the first case includes a first rib extending circumferentially around the first case and generally defining a battery cell accommodation space for the battery cell around an interior of the first rib, the first rib having a ridged section comprising alternating thick portions and thin portions.

First claim

What is claimed is:

1. A battery pack comprising:
a battery cell;
a case comprising a first case and a second case coupled together and accommodating the battery cell, wherein the first case comprises:
a first base plate;
a first rib extending circumferentially around the first base plate and protruding in a height direction away from the first base plate to generally define battery cell accommodation space for the battery cell around an interior of the first rib, the first rib having a ridged section comprising alternating thick portions and thin portions with respect to a thickness direction that is perpendicular to the height direction of the first rib to prevent contraction and deformation of the first rib; and

a protection circuit module, wherein the first rib further defines a protection circuit module accommodation space.

2. The battery pack of claim 1 , further comprising a flange unit on an exterior of the first rib, wherein the ridged section is located on the first rib adjacent to the flange unit.

3. The battery pack of claim 2 , wherein the flange unit comprises a boss configured to receive an external device.

4. The battery pack of claim 2 , wherein when the first case and the second case are coupled together, the flanged portion is exposed.

5. The battery pack of claim 1 , wherein the ridged section extends along an entirety of the first rib.

6. The battery pack of claim 1 , wherein the ridged section is on a corner of the first rib.

7. The battery pack of claim 1 , wherein the first case comprises a first base plate, and wherein the first rib extends away from the first base plate.

8. The battery pack of claim 2 , wherein the flange unit is on a corner of the first case.

9. The battery pack of claim 2 , wherein the flange unit comprises a first flange unit and a second flange unit spaced from each other.

10. The battery pack of claim 9 , wherein the protection circuit module is between the first flange unit and the second flange unit.

11. The battery pack of claim 1 , wherein the ridged section comprises a first ridged section and a second ridged section and wherein the first rib has a flat section between the first ridged section and the second ridged section.

12. The battery pack of claim 11 , wherein the flat section has an opening configured to receive a fastener to couple the first case to the second case.

13. The battery pack of claim 12 , further comprising a connecting unit offset from the first rib and wherein the opening is on the connecting unit.

14. The battery pack of claim 11 , wherein a thickness of the flat section and a thickness of the thick portions are substantially identical.

15. The battery pack of claim 1 , wherein the ridged section comprises a plurality of ridged sections spaced from each other.

16. The battery pack of claim 1 , wherein a thickness of the thick portions and thin portions is equal to or less than a thickness of the first base plate.

17. The battery pack of claim 1 , wherein the battery pack comprises a plurality of battery cells that are stacked to form a stepped configuration.

18. The battery pack of claim 17 , wherein second case comprises a second base plate having a stepped configuration to accommodate the stepped configuration of the battery cells.

19. The battery pack of claim 1 , wherein the thick portions protrude toward the battery cell relative to the thin portions.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Wang han-jun

Classifications

• H01M50/209 Primary

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

• H01M50/262

  with fastening means, e.g. locks · CPC title

• H01M2/1022 Primary

  Electricity · mapped topic

• H01M2/1061

  Electricity · mapped topic

• H01M2/1077

  Electricity · mapped topic