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Power plug with leakage protection function

A technology of leakage protection and power plug, which is applied in the direction of emergency protection circuit device, automatic disconnection emergency protection device, switch operated by ground fault current, etc., can solve the problems of personal electric shock and damage to household appliances, and achieve The effect of preventing personal electric shock accidents, protecting personal safety, and protecting electrical equipment

Active Publication Date: 2011-04-20
ZHONGSHAN KAPER ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because this kind of power plug does not have a leakage protection structure inside, when there is a leakage fault between the live wire, neutral wire, and ground wire on the output side of the pin, and a short circuit fault between the live wire and the neutral wire on the output side of the pin, it will directly cause personal electric shock. and damage to household appliances

Method used

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  • Power plug with leakage protection function

Examples

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Embodiment Construction

[0027] A power plug with leakage protection function, comprising a shell 1, a reset button 11 and a test button 12 exposed on the surface of the shell 1 on one side, and a test button 12 on the other side of the shell 1 A power live wire pin 3 and a neutral wire pin 2 exposed on its surface are provided, and a circuit board 5 electrically connected to the power supply live wire pin 3 and the neutral wire pin 2 is arranged inside the shell 1, and the The above-mentioned circuit board 5 is provided with a leakage protection circuit for detecting the leakage fault of the cable output by the power supply, and the static contact 723 and the A movable contact 742 that can be connected or disconnected from the static contact 723, the movable contact 742 is connected with an output power line 8, and the outer casing 1 is provided with a control device for the movable contact 742 is a tripping device 7 that connects or disconnects with the static contact 723. The tripping device 7 incl...

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Abstract

The invention discloses a power plug with leakage protection function. The power plug comprises a shell, wherein one side of the shell is provided with a reset button and a test button which are exposed on the surface of the shell, the other side of the shell is provided with a power live wire pin, a power neutral wire pin and a circuit board; and the inside of the shell is provided with a static contact connected with the live wire pin and the neutral wire pin and a movable contact which can be connected or disconnected with the static contact. The technical scheme of the invention is characterized in that the inside of the shell is provided with a tripping device which controls the connection or disconnection of the movable contact and the static contact. The invention aims to overcome the defects of the prior art and provides a power plug with leakage protection function which has high safety and protection performance, simple structure and reasonable design, is suitable for batch production and can detect the leakage fault of the power cable in real time and cut off the connection of the power supply and the load timely.

Description

【Technical field】 [0001] The invention relates to a power plug with leakage protection function, in particular to a power plug with leakage protection for indoor and outdoor use to provide power for cleaning machines, lawnmowers, blowers, electric water heaters, air conditioners, refrigerators, televisions and other household appliances. Protective function of the power plug. 【Background technique】 [0002] At present, people connect household appliances to the mains power supply through power plugs. Most of the power plugs on the market now have the following structures: they include a shell, and two or three exposed pins are installed on the shell and connected to the pins. Connected power cable conductors, when producing electrical appliances, directly fix and connect the power cable conductors of the power plug with the power contacts on the circuit board inside the electrical appliance to form an electrical connection. When the household appliance needs to be used, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/66H01R13/713H01H83/04
CPCH02H3/06H01H83/04H01R24/30H01R13/7135
Inventor 邹建华曾昭立郭兰旺
Owner ZHONGSHAN KAPER ELECTRICAL
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