Battery pack

Patent metadata

Field	Value
Publication number	US-9799930-B2
Application number	US-201213984666-A
Country	US
Kind code	B2
Filing date	Aug 17, 2012
Priority date	May 15, 2012
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

Embodiments of the invention provide a battery pack including a pack body and a plurality of terminals. The pack body has first and second main surfaces that are opposed to each other in a first axis direction, first and second end surfaces that are opposed to each other in a second axis direction orthogonal to the first axis direction, and first and second side surfaces that are opposed to each other in a third axis direction orthogonal to the first axis direction and the second axis direction. The plurality of terminals includes a positive terminal, a negative terminal, a temperature detection terminal, and a control terminal that are arranged on the first end surface along the third axis direction. The negative terminal is arranged between the temperature detection terminal and the control terminal and closer to the control terminal than the temperature detection terminal.

First claim

The invention claimed is:

1. A battery pack, comprising:
a pack body having a first main surface and a second main surface that are opposed to each other in a first axis direction, a first end surface and a second end surface that are opposed to each other in a second axis direction orthogonal to the first axis direction, and a first side surface and a second side surface that are opposed to each other in a third axis direction orthogonal to the first axis direction and the second axis direction; and
a plurality of terminals including at least a positive terminal, a negative terminal, a control terminal, and a temperature detection terminal that are arranged on the first end surface along the third axis direction, and
a plurality of terminal windows configured to expose the terminals to outside, including a first terminal window related to the positive terminal, a second terminal window related to the negative terminal, a third terminal window related to the temperature detection terminal, and a fourth terminal window related to the control terminal, that are arranged on the terminals,
wherein the second terminal window related to the negative terminal is being arranged between the third terminal window related to the temperature detection and the fourth terminal window related to the control terminal,
wherein, along the third axis direction, the second terminal window is positioned and closer to the fourth terminal window than to the third terminal window, and
wherein, among the first terminal window, the second terminal window and the third terminal window, the third terminal window related to the temperature detection has a shortest length along the third axis direction.

2. The battery pack according to claim 1 , wherein
the temperature detection terminal is arranged between the negative terminal and the positive terminal.

3. The battery pack according to claim 2 , wherein
the positive terminal has an area larger than that of the temperature detection terminal.

4. The battery pack according to claim 1 , wherein
the first end surface includes a first concave portion provided close to the first side surface and a second concave portion provided close to the second side surface, and
the first concave portion and the second concave portion are arranged on the first end surface and closer to the second main surface than the first main surface.

5. The battery pack according to claim 4 , wherein
the plurality of terminal windows are closer to the first main surface than the second main surface.

6. The battery pack according to claim 4 , wherein
the first concave portion has a width dimension larger than that of the second concave portion in the third axis direction.

7. The battery pack according to claim 6 , wherein
the first concave portion and the second concave portion each have a height dimension of 1.8 mm or more along the second axis direction.

8. The battery pack according to claim 1 , wherein
the plurality of terminal windows are closer to the first main surface than the second main surface.

9. The battery pack according to claim 8 , wherein
the second end surface includes a locking portion configured to be locked to an electronic apparatus, and
the locking portion is arranged on the second end surface and closer to the second main surface than the first main surface.

Assignees

• Kumagai Atsuhiro
• Yonishi Kiyoshi
• Ikeda Shigeji
• Sony Corp

Inventors

• Kumagai Atsuhiro
• Yonishi Kiyoshi
• Ikeda Shigeji

Classifications

• H01M10/486 Primary

  for measuring temperature · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M10/48 Primary

  Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) · CPC title

• H01M50/55

  on the same side of the cell · CPC title

• H01M50/247

  specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers · CPC title