Battery pack

Patent metadata

Field	Value
Publication number	US-9917338-B2
Application number	US-201414779792-A
Country	US
Kind code	B2
Filing date	Mar 18, 2014
Priority date	Mar 29, 2013
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

A battery pack includes a battery module including a plurality of cells, a housing that accommodates the battery module and is thermally coupled to the battery module, and a temperature adjuster that is thermally coupled and attached to the housing. The temperature adjuster changes a temperature of the housing.

First claim

What is claimed is:

1. A battery pack comprising:
a battery module including a plurality of cells;
a housing that accommodates the battery module, wherein the housing is thermally coupled to the battery module; and
a temperature adjuster that is thermally coupled and attached to an inner wall surface of the housing such that the temperature adjuster is configured to adjust a temperature of the housing and a temperature of the battery module through conductive heat transfer,
wherein the temperature adjuster includes a heater, and
an insulator that covers the housing.

2. The battery pack according to claim 1 , wherein the housing has a higher heat conductivity than air.

3. The battery pack according to claim 1 , wherein the housing is a counterweight arranged in a battery forklift.

4. The battery pack according to claim 1 , wherein the temperature adjuster adjusts the temperature of the battery module via conductive heat transfer through the housing.

5. The battery pack according to claim 1 , wherein a gap is provided between the battery module and the temperature adjuster.

6. The battery pack according to claim 1 , wherein a heat transmission plate is arranged between the cells.

7. The battery pack according to claim 1 , wherein a heat transmission plate is arranged between the cells and the housing.

Assignees

• Toyota Jidoshokki Kk

Inventors

• Oishi Hidefumi
• Kato Takayuki
• Kato Hirohisa
• Ueda Hiromi
• Ishiguro Fumihiko
• Morisaku Naoto
• Maeda Kazuki
• Sakai Takashi
• Watanabe Shintaro
• Yamaguchi Atsushi
• CHUJO Yuki

Classifications

• H01M50/24

  adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658) · CPC title

• H01M50/249

  specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) · CPC title

• H01M50/209

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

• H01M10/617

  for achieving uniformity or desired distribution of temperature · CPC title

• H01M10/625 Primary

  Vehicles · CPC title