Rechargeable battery pack

Patent metadata

Field	Value
Publication number	US-9252404-B2
Application number	US-201314088801-A
Country	US
Kind code	B2
Filing date	Nov 25, 2013
Priority date	Jan 9, 2013
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

A rechargeable battery pack includes a rechargeable battery cell, and a pair of cell holders receiving respective sides of the rechargeable battery cell in a length direction, the pair of cell holders being combinable with each other. Each of the cell holders includes a base that supports the rechargeable battery cell, a combination protrusion and a combination groove symmetrically disposed on an outer side of the base, a protrusion protruding from the base in the length direction so as to be combinable in the length direction, and a recess portion being concave in the base in the length direction such that the recess portion of one of the pair of cell holders is combinable with the protrusion of the other of the pair of cell holders.

First claim

What is claimed is:

1. A rechargeable battery pack, comprising:
a plurality of rechargeable battery cells; and
a plurality of cell holders for receiving the rechargeable battery cells, the cell holders being combinable with each other on an outer side thereof, wherein
each of the cell holders includes:
a base for supporting one of the rechargeable battery cells, and
a combining protrusion and a combining groove symmetrically disposed on an outer side of the base, the combining protrusion extending outwardly from the outer side of the base and the combining groove extending inwardly from the outer side of the base,
the combining protrusion including:
a first combining protrusion at one side of the base, the first combining protrusion including a primary first combining protrusion, and a secondary first combining protrusion and a tertiary first combining protrusion on respective sides in a 30-degree direction from the primary first combining protrusion such that the primary first combining protrusion is centered between the secondary first combining protrusion and the tertiary first combining protrusion, and
a second combining protrusion spaced apart from the primary first combining protrusion in a 90-degree direction from the primary first combining protrusion, and
the combining groove including:
a first combining groove at an opposite side of the base, the first combining groove including a primary first combining groove and a secondary first combining groove and a tertiary first combining groove on respective sides in a 90-degree direction from the primary first combining groove such that the primary first combining groove is centered between the secondary first combining groove and the tertiary first combining groove, and
A second combining groove spaced apart from the primary first combining groove in a 90-degree direction from the primary first combining groove, wherein the base of each of the cell holders is in a form of a cylinder, and the 30-degree direction and the 90-degree direction from the primary first combining protrusion and the 30-degree direction and the 90-degree direction from the primary first combining groove are with respect to a central axis of the cylinder.

2. The rechargeable battery pack as claimed in claim 1 , wherein the one rechargeable battery cell is a cylindrical rechargeable battery, and the base of each of the cell holders in the form of the cylinder corresponds to the cylindrical rechargeable battery.

3. The rechargeable battery pack as claimed in claim 1 , wherein
the combining protrusion has a first width at a surface of the base and includes an inclined surface such that a protruded end of the combining protrusion has a second width that is greater than the first width.

4. The rechargeable battery pack as claimed in claim 3 , wherein
the combining groove has a first width at the surface of the base, the first width of the combining groove corresponding to the first width of the combining protrusion, and includes an inclined surface such that the combining groove has a second width inside the base, the second width of the combining groove corresponding to the second width of the combining protrusion.

5. The rechargeable battery pack as claimed in claim 1 , wherein
the combining protrusion includes:
a connector that protrudes from the base, the connector having a first width; and
an extension at an end of the connector, the extension having a second width that is greater than the first width.

6. The rechargeable battery pack as claimed in claim 5 , wherein
the combining groove has the first width at a surface of the base to correspond to the connector, and has the second width inside the base to correspond to the extension.

7. The rechargeable battery pack as claimed in claim 1 , wherein
the combining protrusion protrudes from the base with a first width, and
the combining groove is formed into an outer surface of the base with the first width to correspond to the combining protrusion.

8. The rechargeable battery pack as claimed in claim 2 , wherein, with respect to each of the cell holders:
the combining protrusion includes a plurality of combining protrusions at regular intervals on one half of a circumference of the base, and
the combining groove includes a plurality of combining grooves symmetrically located with respect to the combining protrusions at regular intervals on another half of the circumference of the base, the combining grooves being absent from the half of the circumference of the base having the combining protrusions at regular intervals, and the combining protrusions being absent from the other half of the circumference of the base having the combining grooves.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Kwag No-Hyun

Classifications

• H01M2/105

  Electricity · mapped topic

• H01M2/1033 Primary

  Electricity · mapped topic

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title

• H01M50/267 Primary

  having means for adapting to batteries or cells of different types or different sizes · CPC title

• H01M50/213

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