Invention Grant
- Patent Title: Electric protection circuit
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Application No.: US16966220Application Date: 2019-12-06
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Publication No.: US11600992B2Publication Date: 2023-03-07
- Inventor: Jinbo Cai , Zhimin Dan , Wei Zhang , Yizhen Hou , Xiong Zheng
- Applicant: Contemporary Amperex Technology Co., Limited
- Applicant Address: CN Ningde
- Assignee: Contemporary Amperex Technology Co., Limited
- Current Assignee: Contemporary Amperex Technology Co., Limited
- Current Assignee Address: CN Ningde
- Agency: East IP P.C.
- Priority: CN201811488440.0 20181206
- International Application: PCT/CN2019/123722 WO 20191206
- International Announcement: WO2020/114501 WO 20200611
- Main IPC: H02H7/00
- IPC: H02H7/00 ; H02H7/20 ; H02H7/18 ; H02J7/00 ; H02H7/22

Abstract:
The present application provides an electric protection circuit, which relates to the field of battery power. The electric protection circuit includes a battery pack, a main positive switch, a load device and a main negative switch connected in series. The main positive switch and/or the main negative switch include at least one semiconductor switch. The main positive switch and/or the main negative switch in the electric protection circuit are connected in parallel to a protection module, which absorbs electric energy across two terminals of the main positive switch and/or the main negative switch when the main positive switch and/or the main negative switch are turned off. The technical solution of the present application can improve the safety of the electric protection circuit.
Public/Granted literature
- US20210050719A1 ELECTRIC PROTECTION CIRCUIT Public/Granted day:2021-02-18
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