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Multifunctional fireproofing over loading protecting socket

An overload protection and multi-functional technology, applied in the direction of adjusting protection switch conditions, protection switch operation/release mechanism, electrical components, etc., can solve the problem of single overload protection function, etc., to achieve reliable tripping, large current breaking ability, contact The effect of small resistance

Active Publication Date: 2007-05-23
ZHEJIANG CHINT BUILDING ELECTRICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially for small household appliances with rated current below 1A, the defects are more obvious
At the same time, the existing fire protection socket only has a single overload protection function

Method used

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  • Multifunctional fireproofing over loading protecting socket
  • Multifunctional fireproofing over loading protecting socket
  • Multifunctional fireproofing over loading protecting socket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Referring to Figures 1 and 2, the multi-functional fireproof overload protection socket uses the circuit board 1 as the substrate. The circuit board 1 is provided with an overcurrent sensor 12, a zero-sequence transformer 13, a test button 9, a reset button assembly, an electromagnetic release, and two pairs of static contacts 22 and moving contacts respectively corresponding to the N pole and the L pole. 14, the control chip 7 of the control circuit, the thyristor 8 and other components, and a static magnet 17 fixed on the shell.

[0032]The reset button assembly includes a reset button 4 connected in sequence, a copper connecting rod 5 and a moving magnet 2, the copper connecting rod 5 is covered with a reset spring 3 and an insulating gasket 6, and is embedded in the circuit board 1. Position in the horizontal slideway 25. In this way, the reset button 4, the reset spring 3 and the insulating spacer 6 are located above the circuit board 1, and can be operated and re...

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PUM

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Abstract

The invention relates to a multifunctional fireproof overload protective plug base, which comprises over-current sensor on circuit board, zero-sequence inducer, test button, return button element, control circuit, electromagnetic release device, two couples of stable contactor and movable contactor relative to N and L poles, and one stable magnet fixed on frame. The invention uses dual-magnetic release method to switch the contactors, without mechanical abrasion and sliding condition. And it has high current divert ability and high sensitivity. It has overload protection and leakage protection functions.

Description

technical field [0001] The invention relates to a high-sensitivity multifunctional fireproof overload protection socket, which is a fireproof universal power socket with multiple functions such as overload protection, overvoltage protection, overheat protection, leakage protection and short circuit protection. Background technique [0002] With the development of science and technology, power sockets with fireproof functions are gradually required by people to provide reliability guarantees for the protection of personal and electrical property safety. The fireproof overload protection socket is realized by installing an overload protector on the power socket. Existing overload protectors mainly use bimetallic strips, which are bent and deformed after being energized and heated to cut off the power supply. When the overload current is doubled, it usually takes a few seconds to half an hour to trip, so the power supply cannot be disconnected quickly, and The breaking time is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/713H01H71/24H01H71/74
Inventor 祝振卿
Owner ZHEJIANG CHINT BUILDING ELECTRICS
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