BATTERY MANAGEMENT SYSTEM, BATTERY PACK, AND ELECTRIC DEVICE

WIPO Patent Application WO/2024/031661

A1

Provided in the present application are a battery management system, a battery pack, and an electric device. The battery management system comprises: a high-voltage interlock circuit, which is configured to electrically connect to a voltage source, can receive an output voltage of the voltage source, and is configured to electrically connect to an external connection terminal; and a controller, which is electrically connected to the high-voltage interlock circuit, is configured to electrically connect to the voltage source, and is configured to collect the voltage of the connection point between the controller and the high-voltage interlock circuit, so as to determine the connection state of the external connection terminal. In the embodiments of the present application, the connection state of a high-voltage loop is detected by means of a low-voltage small signal, such that the number of devices in a battery management system can be reduced, thereby reducing the configuration cost. Moreover, different connection states of an external connection terminal can be determined by means of different voltages collected by a controller, thereby realizing effective detection of different connection states of the high-voltage loop.

ZHANG WENPAN (CN)

PCT/CN2022/112192

February 15, 2024

August 12, 2022

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XIAMEN AMPACK TECH LIMITED (CN)

H01M10/00; G01R31/28; H02J7/00

WO2018036249A1

2018-03-01

CN109507564A	2019-03-22
CN215494060U	2022-01-11
CN108983000A	2018-12-11
CN204136792U	2015-02-04
US20190118668A1	2019-04-25

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

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