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Safety universal control circuit module and safety leakage protector

A leakage protector and circuit module technology, applied in circuit devices, emergency protection circuit devices, automatic disconnection emergency protection devices, etc.

Active Publication Date: 2014-06-04
刘圣平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly solves the technical problems that existing old leakage protectors and their dedicated core control circuits often fail out of control due to their own abnormal faults, cannot cut off the load power supply in time, have potential safety hazards, and seriously threaten personal safety; When an abnormal fault occurs, it can also timely and reliably carry out back-locking or blocking cut-off protection control, forcefully disconnect the AC power supply of the load (electrical appliance), and can avoid and prevent electric shock when the abnormal fault fails. Safety Leakage Protector and Its Safety Universal Control Circuit Module QAK

Method used

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  • Safety universal control circuit module and safety leakage protector
  • Safety universal control circuit module and safety leakage protector
  • Safety universal control circuit module and safety leakage protector

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Embodiment 1 includes an AC step-down rectification DC stabilized power supply (7), a pre-stage detection circuit, a core circuit module QAK, a rear-stage drive circuit and or an execution circuit; the described AC step-down rectifier DC stabilized power supply (7) has Tertiary DC voltage V +1 , V +2 , V +3 output; the preceding detection circuit consists of a zero-sequence current transformer H secondary coil n3 and a resistor 1R 1 , 1R 2 , 1R 3 Form; described core circuit module QAK is exactly safe general control circuit module QAK, and its principle connection block diagram, as figure 1 As shown, the circuit schematic diagram of its specific embodiment, such as figure 2 As shown, its circuit structure, connection mode, and working principle have been described in detail first, and will not be repeated; the post-stage drive circuit described is composed of a resistor 1R 7 , 1R 8 , Zener diode 1WD 1 、1WD 2 and triode 1TV 1 、1TV 2 Composed; the executive c...

Embodiment 2

[0056] Embodiment 2 also includes an AC step-down rectifier DC stabilized power supply (7), a front-stage detection circuit, a core circuit module QAK, a rear-stage drive circuit and or an execution circuit; the described AC step-down rectified DC stabilized power supply (7) There are three levels of DC voltage V +1 , V +2 , V +3 output; the preceding detection circuit consists of a zero-sequence current transformer H secondary coil n 3 and resistor 2R 1 , 2R 2 , 2R 3 Form; described core circuit module QAK is exactly safe general control circuit module QAK, and its principle connection block diagram, as figure 1 As shown, the circuit schematic diagram of its specific embodiment, such as figure 2 As shown, its circuit structure, connection mode, and working principle have been described in detail first, and will not be repeated; the post-stage drive circuit is composed of a resistor 2R 7 , 2R 8 , Zener diode 2WD 1 、2WD 2 and triode 2TV 1 、2TV 2 constitute; the exe...

Embodiment 3

[0067] Embodiment 3 includes an AC step-down rectification DC stabilized power supply (7), a front-stage detection circuit, a core circuit module QAK, a protection and control circuit, a rear-stage drive circuit and or an execution circuit; the described AC step-down rectifier DC stabilized power supply (7) There are three levels of DC voltage V +1 , V +2 , V +3 output; the preceding detection circuit consists of a zero-sequence current transformer H secondary coil n 3 and resistor 3R 1 , 3R 2 , 3R 3 Form; described core circuit module QAK is exactly safe general control circuit module QAK, and its principle connection block diagram, as figure 1 As shown, the circuit schematic diagram of its specific embodiment, such as figure 2 As shown, its circuit structure, connection mode, and working principle have been described in detail first, and will not be repeated; the protection and control circuit described is composed of a resistor 3R 9 Composed of; the post-stage drive...

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Abstract

The invention relates to a safety universal control circuit module and a safety leakage protector. According to the technical method, the safety universal control circuit module QAK is taken as a core circuit, a detection input end and a limiting setting end of the safety universal control circuit module QAK are connected with a secondary coil of a zero sequence current transformer, the two output ends of the safety universal control circuit module QAK are connected with a drive circuit or an execution circuit, and the execution circuit is used for controlling an alternating current power supply of a load. The core circuit is maintained to be in a normal connection state through an input through maintenance circuit so that the drive circuit and the execution circuit can be connected with the alternating current power supply of the load. A leakage signal or an electric shock signal triggers a locking circuit or a back locking circuit in the core circuit to be in a cut-off state, and the drive circuit and the execution circuit are forced to cut off the alternating current power supply of the load so that leakage protection control can be achieved; various faults of the core circuit are monitored through a protection base, a protection bottom and the back locking circuit or the locking circuit in the core circuit, and the drive circuit or the execution circuit is forced to cut off the alternating current power supply of the load when the faults occur. Therefore, electric shock accidents occurring when the core circuit fails can be avoided, and body safety is guaranteed.

Description

technical field [0001] The invention relates to a control circuit and an electric shock or leakage protector, in particular to a safety universal control circuit module and a safety leakage protector. Background technique [0002] In order to verify the novelty of the present invention, the designer consulted a large number of relevant technical materials (professional books, newspapers and periodicals), and also retrieved relevant patent documents. There are many kinds of existing old leakage protectors, which can basically effectively protect and control the leakage or electric shock of the load (electrical appliance) under normal conditions, but there are generally potential fatal defects: when an abnormal fault occurs in itself, its protection function It will fail and form out of control refusal to jump. In case of leakage or electric shock, the AC power supply of the load (electrical appliance) cannot be cut off in time, and the electric shocker cannot be protected. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/28
Inventor 刘圣平
Owner 刘圣平
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