Title:
HEAT DISSIPATION DEVICE, BATTERY PACK, AND ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/205790
Kind Code:
A1
Abstract:
The present application relates to the technical field of battery pack apparatuses, and in particular, discloses a heat dissipation device, a battery pack, and an electrical device. The heat dissipation device comprises: a housing and a phase change material. The housing is provided with a closed hollow cavity, the phase change material is provided in the hollow cavity, and when the phase change material does not have a phase change, the phase change material does not exceed 95% of the volume of the hollow cavity. In this way, according to the present application, when the temperature of a heating element on a battery management system board (BMS board) rises and a phase change temperature of the phase change material is reached, the phase change material has the phase change, and heat generated by the heating element on the BMS board is absorbed, the heat dissipation of the BMS board is greatly improved, the probability that an element on the BMS is damaged due to high temperature rise of the BMS board is reduced; moreover, when the phase change material has the phase change, overflow of the phase change material from the housing so as to affect the heat dissipation effect of the heat dissipation device can be reduced.
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Inventors:
XU WEIPAN (CN)
LI TINGYONG (CN)
LI YI (CN)
LI TINGYONG (CN)
LI YI (CN)
Application Number:
PCT/CN2021/118322
Publication Date:
October 06, 2022
Filing Date:
September 14, 2021
Export Citation:
Assignee:
DONGGUAN POWERAMP TECH LIMITED (CN)
International Classes:
H01M50/244
Foreign References:
| CN112968247A | 2021-06-15 | |||
| CN205303522U | 2016-06-08 | |||
| CN107172868A | 2017-09-15 | |||
| CN201243049Y | 2009-05-20 | |||
| CN111554851A | 2020-08-18 | |||
| CN207082615U | 2018-03-09 |
Attorney, Agent or Firm:
LIUJIA CHINA IP LAW OFFICE (CN)
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