Title:
LEAKAGE PROTECTION PLUG
Document Type and Number:
WIPO Patent Application WO/2013/020273
Kind Code:
A1
Abstract:
The present invention relates to a leakage protection plug, comprising a plug body. One end of the plug body is connected to a load, and the other end is connected to an external power supply through two insert pieces. A mutual inductor, a releasing mechanism, and a PCB control board are disposed in the plug body. A reset mechanism is disposed on the plug body. In the present invention, the mutual inductor detects an induced leakage current signal between a live wire and a naught wire of a power supply end, and sends the leakage current signal to the PCB control board. When detecting that a current difference between the live wire and the naught wire exceeds a predetermined value, the PCB control board controls the releasing mechanism to break a circuit connection between the power supply and the load, thereby achieving the purpose of fire or electric shock prevention and improving the safety of the leakage protection of electric products. The reset mechanism controls the releasing mechanism, so that the power supply and the load are reset and connected. The work effectiveness of the leakage protection plug is ensured by means of a test mechanism. An arc surface fitting a palm is provided on the top surface of an upper cover of the plug, and grooves facilitating handling are disposed at two side surfaces of a lower cover, so that the leakage protection plug is more user-friendly.
Inventors:
YE QIHUI (CN)
WANG ZHONGYU (CN)
WANG ZHONGYU (CN)
Application Number:
PCT/CN2011/078168
Publication Date:
February 14, 2013
Filing Date:
August 09, 2011
Export Citation:
Assignee:
SHENZHEN LIANGHUI TECHNOLOGY CO LTD (CN)
YE QIHUI (CN)
WANG ZHONGYU (CN)
YE QIHUI (CN)
WANG ZHONGYU (CN)
International Classes:
H01R13/713; H01H83/14
Foreign References:
| CN101483297A | 2009-07-15 | |||
| CN2562439Y | 2003-07-23 | |||
| CN2932735Y | 2007-08-08 | |||
| CN2750508Y | 2006-01-04 | |||
| GB2284508A | 1995-06-07 |
Attorney, Agent or Firm:
SHENZHEN CENTURY-FOREVER INTELLECTUAL PROPERTY OFFICE (CN)
深圳市世纪恒程知识产权代理事务所 (CN)
深圳市世纪恒程知识产权代理事务所 (CN)
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Claims: