Title:
ARC FAULT DETECTION METHOD AND APPARATUS, AND DIRECT-CURRENT ELECTRIC APPLIANCE
Document Type and Number:
WIPO Patent Application WO/2022/233153
Kind Code:
A1
Abstract:
An arc fault detection method and apparatus (1102), and a direct-current electric appliance (1101). The arc fault detection method comprises: determining, according to a sampled current of a direct-current electric appliance (1101), whether an arc fault occurs (S101); and upon determining that an arc fault occurs, determining, according to a waveform of the sampled current and a reference waveform, whether the determination result is accurate, wherein the reference waveform is a current waveform when working state switching occurs in the direct-current electric appliance (1101) (S102). The method can eliminate interference generated by working state switching of the direct-current electric appliance (1101) itself, thereby improving the accuracy of arc fault detection.
Inventors:
YUAN JINRONG (CN)
ZHAO ZHIGANG (CN)
LI WEIJIN (CN)
LIN BAOWEI (CN)
NAN SHUGONG (CN)
ZHAO ZHIGANG (CN)
LI WEIJIN (CN)
LIN BAOWEI (CN)
NAN SHUGONG (CN)
Application Number:
PCT/CN2022/070255
Publication Date:
November 10, 2022
Filing Date:
January 05, 2022
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
G01R31/12
Foreign References:
| CN113125913A | 2021-07-16 | |||
| CN107064752A | 2017-08-18 | |||
| CN109581160A | 2019-04-05 | |||
| CN111474451A | 2020-07-31 | |||
| CN105223476A | 2016-01-06 | |||
| CN103245897A | 2013-08-14 | |||
| US20190324075A1 | 2019-10-24 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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