Title:
BATTERY PROTECTION CIRCUIT AND ELECTRONIC CIGARETTE
Document Type and Number:
WIPO Patent Application WO/2020/182066
Kind Code:
A1
Abstract:
The present utility model belongs to the field of electronic devices. Disclosed are a battery protection circuit and an electronic cigarette. The battery protection circuit comprises a first protection chip, and the first protection chip comprises a power supply input end and a power supply output end, the power supply input end being connected to a voltage bus end of a charging interface, the power supply output end being connected to a battery assembly by means of a charging circuit; when the voltage of the power supply input end is greater than a safety threshold, the first protection chip disconnects the circuit connection between the power supply input end and the power supply output end; when the voltage of the power supply input end is less than or equal to the safety threshold, the first protection chip connects the circuit between the power supply input end and the power supply output end. The present invention solves the problem in the related art that the voltage at a charging interface is too high when a charging circuit fails, easily causing burning of a charging chip and a control chip, resulting in battery damage or fire.
Inventors:
QIU WEIHUA (CN)
LIU KUI (CN)
LIU KUI (CN)
Application Number:
PCT/CN2020/078112
Publication Date:
September 17, 2020
Filing Date:
March 06, 2020
Export Citation:
Assignee:
CHANGZHOU PATENT ELECTRONIC TECH CO LTD (CN)
International Classes:
H02H7/18
Foreign References:
| CN103368144A | 2013-10-23 | |||
| CN103368144A | 2013-10-23 | |||
| CN206865186U | 2018-01-09 | |||
| CN208241335U | 2018-12-14 | |||
| CN207530530U | 2018-06-22 |
Attorney, Agent or Firm:
CHANGZHOU WISDOM TENDA PATENT ATTORNEY LAW FIRM (GENERAL PARTENER) (CN)
Download PDF: