Battery pack

Patent metadata

Field	Value
Publication number	US-2016351971-A1
Application number	US-201615142420-A
Country	US
Kind code	A1
Filing date	Apr 29, 2016
Priority date	May 28, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

A battery pack, including a battery cell; and a case having a receiving space for the battery cell, the case including a frame member including an opening formed in a central portion thereof and having an inner surface facing the receiving space and an outer surface opposite the inner surface; a first cover on the frame member, the first cover including a flange portion supported on the inner surface of the frame member, a main body exposed through the opening of the frame member, and a connecting portion connecting the flange portion to the main body in a stepped manner; and a second cover coupled to the frame member, the battery cell being between the second cover and the frame member.

First claim

What is claimed is:

1 . A battery pack, comprising:
a battery cell; and a case having a receiving space for the battery cell, the case including: a frame member including an opening formed in a central portion thereof and having an inner surface facing the receiving space and an outer surface opposite the inner surface; a first cover on the frame member, the first cover including a flange portion supported on the inner surface of the frame member, a main body exposed through the opening of the frame member, and a connecting portion connecting the flange portion to the main body in a stepped manner; and a second cover coupled to the frame member, the battery cell being between the second cover and the frame member.

2 . The battery pack as claimed in claim 1 , wherein:
the flange portion and the main body extend in parallel, and the connecting portion forms an acute angle with respect to an extension direction of the flange portion and the main body and gently connects the flange portion to the main body.

3 . The battery pack as claimed in claim 1 , wherein a first boundary between the connecting portion and the flange portion is round.

4 . The battery pack as claimed in claim 1 , wherein a second boundary between the connecting portion and the main body is round.

5 . The battery pack as claimed in claim 1 , further comprising an adhesive member between the frame member and the first cover.

6 . The battery pack as claimed in claim 1 , wherein each of the first and second covers includes a metal material.

7 . The battery pack as claimed in claim 1 , further comprising an insulating member between the battery cell and the first and second covers.

8 . The battery pack as claimed in claim 1 , wherein the first and second covers are coupled to a same frame member.

9 . The battery pack as claimed in claim 1 , wherein:
the frame member includes a cell region supporting the battery cell and a circuit region supporting a protection circuit controlling a charging/discharging operation of the battery cell, and the first and second covers selectively cover the cell region.

10 . The battery pack as claimed in claim 9 , further comprising a third cover selectively covering the circuit region.

11 . The battery pack as claimed in claim 9 , wherein:
the frame member includes a rib dividing the cell region into cell regions, two or more first covers respectively cover the cell regions, and the second cover entirely covers all of the cell regions.

12 . The battery pack as claimed in claim 1 , wherein the second cover includes a coupling portion protruding from the main body toward the frame member.

13 . The battery pack as claimed in claim 12 , wherein the coupling portion of the second cover and the frame member are hooked to each other.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Kim Jaemin
• Moon Daeyon
• Ahn Byungkook

Classifications

• H01M10/425 Primary

  Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title

• H01M50/276

  Inorganic material · CPC title

• H01M50/211

  adapted for pouch cells · CPC title

• H01M2/1061

  Electricity · mapped topic

• H01M2200/30

  Preventing polarity reversal · CPC title