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Leakage protection plug

A leakage protection plug and electromagnetic device technology, applied in the direction of circuits, electrical components, coupling devices, etc., can solve problems involving many components, high manufacturing costs, complex structures, etc., to improve market competitiveness, low material costs, and control methods sensitive effect

Inactive Publication Date: 2012-02-08
ZHEJIANG ZHONGXUN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the tripping device of the traditional leakage protection plug is relatively complicated, involving a large number of components, and the manufacturing cost is relatively high

Method used

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Embodiment Construction

[0012] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 As shown, the leakage protection plug provided by the present invention includes a housing, and the housing is composed of an upper housing 12, a lower housing 13 and a rear cover 11, and has a set of live, neutral and A grounded power plug 15 for insertion into a mains power socket, the back cover 11 includes an opening at its rear end to allow access to a load power cord 16 which is connected at its far end to a load such as an electrical appliance, The housing is provided with a movable contact 21a, a static contact 23a, an action mechanism and a control circuit circuit board 51. The electronic control circuit board 51 is used to detect the occurrence of a certain circuit fault, such as a ground fault occurring at the load, and the movable contact 21a, the static contact 23a are connected to the power supply and the load respectively. In this embodiment, the movable contact 21a and the s...

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PUM

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Abstract

The invention discloses a leakage protection plug which comprises a shell, wherein the shell internally provided with a moveable contact, a stationary contact, an action mechanism and a control circuit board; the moveable contact and the stationary contact are respectively connected with a power supply and a load; the action mechanism comprises a rotary mechanism and an electromagnetism device; the rotary mechanism is provided with a reset key; a push rod is arranged below the lower part of the key; the reset key is downwardly pressed to push the push rod to support against the rotary mechanism; the moveable contact is arranged on the rotary mechanism, and the stationary contact is arranged corresponding to the moveable contact; the electromagnetism device comprises a magnetic coil, a pole piece, an ejector rod penetrating through the pole piece and an iron core fixed on the ejector rod; the ejector rod is forwardly acted by a suction effect generated by the iron core and the pole piece under the condition that the electromagnetism device is electrified to forwardly push the rotary mechanism; the rotary mechanism is provided with an elastic device which is used for promoting the rotary mechanism to rotate toward the ejector rod; and after the force of leading the ejector rod to push the rotary mechanism overcomes the restoring force of the elastic device, the moveable contact and the stationary contact are contacted and conducted. The leakage protection plug has simple trip form and is convenient for manufacturing.

Description

technical field [0001] The invention relates to a leakage protection plug. Background technique [0002] The traditional earth leakage protection plug includes a housing on which a conductive plug connected to an internal circuit is arranged, and a circuit board, an upper contact, a lower contact and a tripping device are arranged in the housing. However, the structure of the tripping device of the traditional leakage protection plug is relatively complicated, involving a large number of components, and the manufacturing cost is relatively high. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a leakage protection plug with simple tripping form and convenient manufacture. [0004] For this reason, the earth leakage protection plug provided by the present invention comprises a housing, and a movable contact, a static contact, an action mechanism and a control circuit circuit board are arranged in the housing, and ...

Claims

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Application Information

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IPC IPC(8): H01R13/66H01R13/70
Inventor 郑建中吴斌林利敏
Owner ZHEJIANG ZHONGXUN ELECTRONICS
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