CN202796748U - Energy-saving control circuit of constant magnetic maintaining alternating current contactor - Google Patents
Energy-saving control circuit of constant magnetic maintaining alternating current contactor Download PDFInfo
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- CN202796748U CN202796748U CN 201220400507 CN201220400507U CN202796748U CN 202796748 U CN202796748 U CN 202796748U CN 201220400507 CN201220400507 CN 201220400507 CN 201220400507 U CN201220400507 U CN 201220400507U CN 202796748 U CN202796748 U CN 202796748U
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- full bridge
- bridge rectifier
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- pull
- winding
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Abstract
The utility model relates to an energy-saving control circuit of a constant magnetic maintaining alternating current contactor. According to the control circuit, an alternating power supply is connected with a first full bridge rectifier circuit and a second full bridge rectifier circuit; a control relay (J) is connected between the positive electrode and the negative electrode of the first full bridge rectifier circuit; an energy storage capacitor (C3) is connected between the positive electrode and the negative electrode of the second full bridge circuit; the negative electrode of the second full bridge rectifier circuit is connected with a wiring terminal (b) of an attracting coil (L) through a normally open contact (J1-3) of the control relay, and is further connected with a wiring terminal (a) through a first contact (K1-2); the positive electrode of the second full bridge rectifier circuit is connected with the wiring terminal (b) through a normally closed contact (J1-2), and is further connected with the wiring terminal (a) through a second contact (K1-3); and diodes (D9, D10) are connected between the second full bridge rectifier circuit and the attracting coil (L). The control circuit has a simple circuit structure and relatively few elements, and is low in cost and small in work energy consumption.
Description
Technical field
The utility model relates to a kind of A.C. contactor, specifically a kind of energy-saving constant-magnet remaining AC contactor control circuit.
Background technology
Constant-magnet remaining AC contactor is when the contactor adhesive, and pull-in winding need not to keep electric current, thereby energy efficient, and Chinese patent 200820216240.5 discloses a kind of constant-magnet remaining AC contactor.This contactor utilizes pull-in winding energising adhesive contactor, utilizes permanent magnetic force to keep the circuit breaker adhesive during pull-in winding outage, and circuit breaker discharges and then utilizes the storage capacitor discharge to provide reverse current for pull-in winding, overcomes permanent magnetic force and disconnects contactor.Its control circuit comprises that promising control relay provides release and the attraction circuit of the voltage control circuit of power supply, the accumulator of realizing storage capacitor energy storage and release, control pull-in winding.There is following defective in its control circuit: 1, circuit structure is complicated, and particularly accumulator part components and parts are more, improved cost; 2, control relay is worked all the time in the contactor course of work, thereby the circuit energy consumption is still higher.
Summary of the invention
Technical problem to be solved in the utility model is, provides that a kind of circuit structure is simple, components and parts are less, cost is low, the little energy-saving constant-magnet remaining AC contactor control circuit of work energy consumption.
Energy-saving constant-magnet remaining AC contactor control circuit of the present utility model includes AC power (having X1 and X2 the two poles of the earth), control relay J, storage capacitor C3, pull-in winding L(and has two terminals a, b); The first utmost point X1 of described AC power is through normally closed button F A, normally opened contact QA, rear second utmost point X2 that connects of the first full bridge rectifier (comprising diode D1-D4), and the first utmost point X1 of AC power also passes through normally closed button F A and is connected rear second utmost point X2 of connection of full bridge rectifier (comprising diode D5-D8); Control relay J is connected between the anode and negative terminal of the first full bridge rectifier; Storage capacitor C3 is connected between the anode and negative terminal of the second full bridge rectifier; The negative terminal of the second full bridge rectifier is connected with the terminals b of pull-in winding through the normally opened contact J1-3 of control relay, and the negative terminal of the second full bridge rectifier also is connected with the terminals a of pull-in winding through the first contact K1-2 of a diverter switch K; The anode of the second full bridge rectifier is connected with the terminals b of pull-in winding through the normally-closed contact J1-2 of control relay, and the anode of the second full bridge rectifier also is connected with the terminals a of pull-in winding through the second contact K1-3 of diverter switch K; The anode of a diode D9 is connected with the anode of the second full bridge rectifier, and the negative terminal of diode D9 is connected with the terminals a of pull-in winding; The anode of a diode D10 is connected with the terminals a of pull-in winding, and the negative terminal of diode D10 is connected with the negative terminal of the second full bridge rectifier; The iron core interlocking of described diverter switch K and pull-in winding, the first contact K1-2 of diverter switch K was closed and the second contact K1-3 disconnects when the adhesive of pull-in winding iron core put in place, and the first contact K1-2 of diverter switch K disconnected and the second contact K1-3 is closed when the pull-in winding iron core discharged.
The utility model circuit structure is simple, components and parts are few, cost is low, and in its course of work, control relay is no longer switched on after the contactor adhesive, greatly reduces energy consumption.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
As shown in the figure, this circuit includes AC power (having X1 and X2 the two poles of the earth), control relay J, storage capacitor C3, pull-in winding L(and has two terminals a, b); The first utmost point X1 of described AC power is through normally closed button F A, normally opened contact QA, rear second utmost point X2 that connects of the first full bridge rectifier (comprising diode D1-D4), and the first utmost point X1 of AC power also passes through normally closed button F A and is connected rear second utmost point X2 of connection of full bridge rectifier (comprising diode D5-D8); Control relay J is connected between the anode and negative terminal of the first full bridge rectifier; Storage capacitor C3 is connected between the anode and negative terminal of the second full bridge rectifier; The negative terminal of the second full bridge rectifier is connected with the terminals b of pull-in winding through the normally opened contact J1-3 of control relay, and the negative terminal of the second full bridge rectifier also is connected with the terminals a of pull-in winding through the first contact K1-2 of a diverter switch K; The anode of the second full bridge rectifier is connected with the terminals b of pull-in winding through the normally-closed contact J1-2 of control relay, and the anode of the second full bridge rectifier also is connected with the terminals a of pull-in winding through the second contact K1-3 of diverter switch K; The anode of a diode D9 is connected with the anode of the second full bridge rectifier, and the negative terminal of diode D9 is connected with the terminals a of pull-in winding; The anode of a diode D10 is connected with the terminals a of pull-in winding, and the negative terminal of diode D10 is connected with the negative terminal of the second full bridge rectifier; The iron core interlocking of described diverter switch K and pull-in winding, the first contact K1-2 of diverter switch K was closed and the second contact K1-3 disconnects when the adhesive of pull-in winding iron core put in place, and the first contact K1-2 of diverter switch K disconnected and the second contact K1-3 is closed when the pull-in winding iron core discharged.
Its course of work is as follows:
1, contactor attracting process: before the contactor adhesive, plugged, power supply is storage capacitor C3 energy storage by the second full bridge rectifier (comprising diode D5-D8); Press and often open button QA this moment, make control relay J get electric work by the first full bridge rectifier, its normally-closed contact J1-2 disconnects and normally opened contact J1-3 is closed, the electric current of the second full bridge rectifier output forms the loop through contact J1-3, terminals b, pull-in winding L, terminals a, contact K1-3, the pull-in winding forward conduction, make the contactor adhesive and keep by permanent magnetic, the second contact K1-3 of diverter switch disconnects and the first contact K1-2 is closed; Discharge this moment often opens button QA, and control relay J no longer switches on, and normally opened contact J1-3 disconnects and normally-closed contact J1-2 is closed, for dispose procedure is prepared;
2, contactor dispose procedure: press normally closed button F A, the outage of the second full bridge rectifier, storage capacitor C3 discharge, discharging current forms the loop through contact J1-2, terminals a, pull-in winding L, terminals b, contact K1-2, make the pull-in winding reverse-conducting, contactor discharges and disconnects.
Claims (1)
1. an energy-saving constant-magnet remaining AC contactor control circuit includes AC power, control relay J, storage capacitor C3, pull-in winding L; The first utmost point X1 of described AC power connects the second utmost point X2 after through normally closed button F A, normally opened contact QA, the first full bridge rectifier, and the first utmost point X1 of AC power also connects second utmost point X2 with being connected behind the full bridge rectifier through normally closed button F A; Control relay J is connected between the anode and negative terminal of the first full bridge rectifier; It is characterized in that: storage capacitor C3 is connected between the anode and negative terminal of the second full bridge rectifier; The negative terminal of the second full bridge rectifier is connected with the terminals b of pull-in winding through the normally opened contact J1-3 of control relay, and the negative terminal of the second full bridge rectifier also is connected with the terminals a of pull-in winding through the first contact K1-2 of a diverter switch K; The anode of the second full bridge rectifier is connected with the terminals b of pull-in winding through the normally-closed contact J1-2 of control relay, and the anode of the second full bridge rectifier also is connected with the terminals a of pull-in winding through the second contact K1-3 of diverter switch K; The anode of a diode D9 is connected with the anode of the second full bridge rectifier, and the negative terminal of diode D9 is connected with the terminals a of pull-in winding; The anode of a diode D10 is connected with the terminals a of pull-in winding, and the negative terminal of diode D10 is connected with the negative terminal of the second full bridge rectifier; The iron core interlocking of described diverter switch K and pull-in winding, the first contact K1-2 of diverter switch K was closed and the second contact K1-3 disconnects when the adhesive of pull-in winding iron core put in place, and the first contact K1-2 of diverter switch K disconnected and the second contact K1-3 is closed when the pull-in winding iron core discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400507 CN202796748U (en) | 2012-08-14 | 2012-08-14 | Energy-saving control circuit of constant magnetic maintaining alternating current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400507 CN202796748U (en) | 2012-08-14 | 2012-08-14 | Energy-saving control circuit of constant magnetic maintaining alternating current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796748U true CN202796748U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400507 Expired - Fee Related CN202796748U (en) | 2012-08-14 | 2012-08-14 | Energy-saving control circuit of constant magnetic maintaining alternating current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820171A (en) * | 2012-08-14 | 2012-12-12 | 刘衍春 | Control circuit of energy-saving permanent magnet maintaining alternating current contactor |
-
2012
- 2012-08-14 CN CN 201220400507 patent/CN202796748U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820171A (en) * | 2012-08-14 | 2012-12-12 | 刘衍春 | Control circuit of energy-saving permanent magnet maintaining alternating current contactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20170814 |