Title:
CHARGING AND DISCHARGING PROTECTION APPARATUS FOR BATTERY PACK, BATTERY PACK AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/169065
Kind Code:
A1
Abstract:
A charging and discharging protection apparatus for a battery pack, a battery pack and an electronic device. The battery pack comprises a plurality of charging and discharging branches (100) in parallel connection, and each charging and discharging branch (100) comprises a battery cell (Bat). The charging and discharging protection apparatus (200) comprises: protection switches (210) provided corresponding to each charging and discharging branch (100), the protection switches (210) each being configured to control a battery cell (Bat) to charge during forward conduction, and to control the battery cell (Bat) to discharge during reverse conduction; and protection chips (220) provided corresponding to each protection switch (210), the protection chips (220) each being configured to control the forward conduction or the reverse conduction of a protection switch (210), and to adjust the charging or discharging current of a corresponding charging and discharging branch (100) by controlling the conduction resistance of the protection switch (210).
Inventors:
LI XUE (CN)
Application Number:
PCT/CN2022/144198
Publication Date:
September 14, 2023
Filing Date:
December 30, 2022
Export Citation:
Assignee:
GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD (CN)
International Classes:
H02J7/00; H02H7/18
Foreign References:
| CN114640155A | 2022-06-17 | |||
| CN103178564A | 2013-06-26 | |||
| CN110323805A | 2019-10-11 | |||
| US5646502A | 1997-07-08 |
Attorney, Agent or Firm:
ZHIFAN & PARTNERS (CN)
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