PRESSURE RELIEF MECHANISM, CASE, BATTERY AND ELECTRIC DEVICE

WIPO Patent Application WO/2024/065712

A1

A pressure relief mechanism (10), a case (20), a battery (100) and an electric device. The pressure relief mechanism (10) comprises: a valve body (11), which is provided with a pressure relief port (111); a valve cover (12), which covers the pressure relief port (111), the valve cover (12) being configured to move in a direction away from the valve body (11) under the action of pressure, so as to be switched from a closed state to a pressure relief state; and an airflow blocking member (13), which is arranged around the pressure relief port (111) and is connected to the valve body (11) and the valve cover (12). When the valve cover (12) is switched to the pressure relief state, an exhaust port (14) in communication with the outside is formed in an area around the pressure relief port (111) that is not blocked by the airflow blocking member (13). The guiding function of the airflow blocking member (13) can reduce the risk that a high-temperature gas discharged through the pressure relief mechanism (10) is sprayed to a wiring harness and other vulnerable parts around the pressure relief mechanism (10), thereby improving the safety performance of the battery (100).

LIU ZHIMING (CN)
HUANG JIAWEI (CN)

PCT/CN2022/123358

April 04, 2024

September 30, 2022

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CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)

H01M50/317; F16K17/00; H01M50/30

JP2016062757A	2016-04-25
CN212810474U	2021-03-26
CN216413205U	2022-04-29
CN216488385U	2022-05-10
CN114566751A	2022-05-31
CN216903234U	2022-07-05

BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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