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Title:
BATTERY POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/208457
Kind Code:
A1
Abstract:
A battery power supply device. The battery power supply device comprises a battery pack (10), a first switch circuit (20), a second switch circuit (30), a first switch detection circuit (40), a second switch detection circuit (50), and a control circuit (60). Before discharging, operating states of the first switch circuit (20) and the second switch circuit (30) are determined; when the first switch circuit and the second switch circuit are both in a normal state, the battery pack (10) is controlled to discharge and the first switch circuit (20) and the second switch circuit (30) are controlled to be correspondingly conducted; and when the first switch circuit and the second switch circuit are in an abnormal state, the battery pack (10) is controlled to stop discharging, and faults are reported to a background. The first switch circuit (20) and the second switch circuit (30) serve as external switch circuits to perform high-voltage protection on a switching tube of a BMS protection board, and overall safety of the battery pack (10) is improved.

Inventors:
WANG BING (CN)
SHEN JIAN (CN)
JIANG XUFENG (CN)
HUANG JIAXI (CN)
Application Number:
PCT/CN2020/134058
Publication Date:
October 21, 2021
Filing Date:
December 04, 2020
Export Citation:
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Assignee:
SHENZHEN IMMOTOR TECH CO LTD (CN)
International Classes:
H02J7/00
Foreign References:
CN111446761A2020-07-24
CN212210526U2020-12-22
CN109066798A2018-12-21
CN205942306U2017-02-08
CN106771997A2017-05-31
CN207354057U2018-05-11
CN208548704U2019-02-26
JP2018069814A2018-05-10
KR20190143181A2019-12-30
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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