AC contactor

An AC contactor and connection technology, applied in relays, electrical components, circuits, etc., can solve the problems of many AC contactors, complex circuit structure, single control method, etc., achieve accurate time, simple circuit structure, and maintain stability Effect

Active Publication Date: 2016-09-07
SHANGHAI WEIPU ENTERPRISE DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For this reason, the technical problem to be solved by the present invention is that the AC contactor in the prior art has many devices, complex circuit structure, low reliability and single control mode, thereby proposing a simple structure, high reliability and capable of realizing various control methods. AC contactor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, this embodiment provides an AC contactor, including a power filter module, a rectifier module connected to the output end of the power filter module, an action execution module respectively connected to the output end of the power filter module and the output end of the rectifier module, and a For the control module of the action execution module, the action execution module includes four unidirectional thyristors, namely unidirectional thyristor QD1, unidirectional thyristor QD2, unidirectional thyristor QD3, and unidirectional thyristor QD4. , and the electromagnetic coil L, the anode of the one-way thyristor QD1 is connected to the output end of the rectifier module, the cathode is connected to the first end of the electromagnetic coil L, and the anode of the one-way thyristor QD4 is connected to the second end of the electromagnetic coil L , the cathode is grounded, the anode of the one-way thyristor QD2 is connected to the first end of th...

Embodiment 2

[0046] Such as figure 2 As shown, this embodiment provides an AC contactor, and the difference from the above-mentioned Embodiment 1 is that the AC contactor also includes a voltage stabilizing module for providing a stable voltage to the control module, and the input terminal of the voltage stabilizing module is rectified The diode is connected to the output terminal of the power filter module, and the output terminal is connected to the power input terminal of the control module (that is, the first input terminal of the control module), that is, the 220V mains alternating current directly provides voltage to the voltage stabilizing module after being filtered. In addition, the input terminal of the voltage stabilizing module can also be connected with a DC power supply or connected with other AC power supplies through a rectifier diode.

[0047] Specifically, the voltage stabilizing module includes a first-stage voltage stabilizing circuit and a second-stage voltage stabili...

Embodiment 3

[0052] Such as image 3 As shown, this embodiment provides an AC contactor, which is different from the above-mentioned embodiment 2 in that: the AC contactor also includes a release energy storage module for supplying power to the control module and the action execution module when the power supply is cut off. Specifically, the release energy storage module includes a diode D1, a diode D2, a capacitor CD1, and a capacitor CD2. The AC contactor also includes a thermistor RT1 and a resistor R4. One end of the thermistor RT1 is connected to the output end of the power filter module, and the other end Connect to the anode of diode D1, the cathode of diode D1 is connected to the anode of one-way thyristor QD3, the anode of diode D2 is connected to the anode of diode D1, the cathode is connected to capacitor CD2 and grounded, and one end of capacitor CD1 is connected to the cathode of diode D1 The other end is connected to the input end of the voltage stabilizing module, and the cath...

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PUM

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Abstract

An alternating-current contactor comprises a power supply filtering module, a rectification module connected with the output end of the power supply filtering module, an action execution module connected with the output end of the power supply filtering module and the output end of the rectification module, and a control module used for controlling the action execution module. The action execution module comprises a one-way silicon controlled rectifier QD1, a one-way silicon controlled rectifier QD2, a one-way silicon controlled rectifier QD3, a one-way silicon controlled rectifier QD4 and an electromagnetic coil L. The anode of the one-way silicon controlled rectifier QD1 is connected with the output end of the rectification module, the cathode of the one-way silicon controlled rectifier QD1 is connected with the first end of the electromagnetic coil L, the anode of the one-way silicon controlled rectifier QD4 is connected with the second end of the electromagnetic coil L, the cathode of the one-way silicon controlled rectifier QD4 is grounded, the anode of the one-way silicon controlled rectifier QD2 is connected with the first end of the electromagnetic coil L, the cathode of the one-way silicon controlled rectifier QD2 is grounded, the anode of the one-way silicon controlled rectifier QD3 is connected with the output end of the power supply filtering module, and the cathode of the one-way silicon controlled rectifier QD3 is connected with the second end of the electromagnetic coil L. The alternating-current contactor is simple in circuit structure, diversified in control mode, high in reliability and capable of further saving electric energy.

Description

technical field [0001] The invention relates to the technical field of controllable switches. Specifically, it relates to an AC contactor. Background technique [0002] The permanent magnet AC contactor is a kind of micro-power contactor formed by using the principle that the same sex repels each other and the opposite sex attracts each other, and replaces the traditional electromagnet drive mechanism with a permanent magnet drive mechanism. The permanent magnet with fixed polarity installed on the contactor linkage mechanism interacts with the variable polarity soft magnet solidified on the contactor base, so as to achieve the purpose of attraction, retention and release. The variable polarity of the soft magnet is to generate different polarities by generating forward and reverse pulse currents of more than ten to twenty milliseconds through the electronic module solidified with it. According to the needs of the site, use the control electronic module to control the set ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H47/00
Inventor 陈松财周庆忠朱霄雯
Owner SHANGHAI WEIPU ENTERPRISE DEV
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