CN102683112A - Energy-saving controller for coil of relay - Google Patents
Energy-saving controller for coil of relay Download PDFInfo
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- CN102683112A CN102683112A CN201210142645XA CN201210142645A CN102683112A CN 102683112 A CN102683112 A CN 102683112A CN 201210142645X A CN201210142645X A CN 201210142645XA CN 201210142645 A CN201210142645 A CN 201210142645A CN 102683112 A CN102683112 A CN 102683112A
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- diode
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Abstract
The invention relates to an energy-saving controller for a coil of direct current relay/contactor. A control signal is connected to the base of a triode Q1 through a resistor R1. The emitter of the triode Q1 is grounded, and the collector of the triode Q1 is connected with one end of the coil of a relay K1, a resistor R2 and the negative end of a voltage stabilizing tube V3. The positive end of V3 is grounded. The other end of the coil of the relay K1 is connected with the positive end of a capacitor C1 and the negative end of a diode V1, and the positive end of the diode V1 is connected with a power supply. The base of a triode Q2 is connected with the other end of the resistor R2 and the positive end of a diode V2. The collector of the triode Q2 is connected with the power supply. The cathode of the diode V2 is connected with the power supply. The emitter of the triode Q2 is connected with the negative end of the capacitor C1 and the other end of a resistor R3. The control signal is connected to the base of a triode Q3 through a resistor R4. The emitter of the triode Q3 is grounded, and the collector of the triode Q3 is connected with the resistor R3. Instantaneous impulse current is provided during the starting of the direct current relay/contactor, so that the pressure of the power supply of the relay or the contactor is alleviated; and the maintenance power consumption of the coil is greatly reduced, and system efficiency is improved.
Description
Technical field
This patent product relates to the energy-saving controller of a kind of direct current relay or contactor coil.
Technical background
Along with industrial expansion, use the place of D.C. contactor and relay more and more, particularly the D.C. contactor of big electric current and relay.But the control coil of these relays and contactor also needs big electric current to keep, and particularly the moment of relay, contactor, adhesive needs number to decuple the impact of keeping electric current especially.How to realize guaranteeing that big electric current adhesive, low current maintain operate as normal, this is the not good as yet technical problem that solves of prior art.
Summary of the invention
The object of the invention just provides the energy-saving controller of a kind of direct current relay, contactor coil, and guaranteeing provides instantaneous impulse current when direct current relay, Contactor Starting, guarantees the energy of keeping that after the relay adhesive, can provide lower simultaneously.
For realizing above-mentioned purpose; The technical scheme that the present invention adopts is: a kind of relay coil energy-saving controller; It is characterized in that: control signal is received the base stage of triode Q1 through resistance R 1; The grounded emitter of triode Q1, coil one end of the collector connecting relay K1 of triode Q1 and the negative terminal of resistance R 2 and voltage-stabiliser tube V3, the positive ending grounding of V3; The anode of another termination capacitor C 1 of the coil of relay K 1 and the negative terminal of diode V1, the positive termination power of diode V1; The other end of the base stage connecting resistance R2 of triode Q2 and the anode of diode V2, the collector electrode of triode Q2 connects power supply, and the negative pole of diode V2 connects power supply, and the emitter of triode Q2 links to each other with the negative terminal of capacitor C 1, the other end of resistance R 3; Control signal is received the base stage of triode Q3, the grounded emitter of triode Q3, the collector electrode connecting resistance R3 of triode Q3 through resistance R 4.
Advantage of the present invention mainly is when direct current relay, Contactor Starting, instantaneous impulse current to be provided, and has reduced the pressure of relay or contactor power supply; Coil is kept power consumption and is reduced significantly, improves system effectiveness.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
As shown in Figure 1; The relay coil energy-saving controller, its control signal is received the base stage of triode Q1, the grounded emitter of triode Q1 through resistance R 1; Coil one end of the collector connecting relay K1 of triode Q1 and the negative terminal of resistance R 2 and voltage-stabiliser tube V3, the positive ending grounding of V3; The anode of another termination capacitor C 1 of the coil of relay K 1 and the negative terminal of diode V1, the positive termination power of diode V1; The other end of the base stage connecting resistance R2 of triode Q2 and the anode of diode V2, the collector electrode of triode Q2 connects power supply, and the negative pole of diode V2 connects power supply, and the emitter of triode Q2 links to each other with the negative terminal of capacitor C 1, the other end of resistance R 3; Control signal is received the base stage of triode Q3, the grounded emitter of triode Q3, the collector electrode connecting resistance of triode Q3 through resistance R 4.
General relay and contactor are in the moment of adhesive; Need be several times as much as and normally keep electric current; In case and after relay (contactor) adhesive, only needing very low voltage can maintain attracting state, technique scheme provided by the invention proposes in order to satisfy above-mentioned requirements.
The physical circuit that provides below in conjunction with technique scheme and accompanying drawing is elaborated.
When control signal was low level, triode Q1 base stage was a low level, and triode Q2 base stage is a high level, so triode Q1, Q2 all are in off state; Triode Q3 base stage is a low level, and collector electrode is a low level, and VCC voltage is capacitor C 1 charging through diode V1, and through the time-delay of a bit of time, capacitor C 1 positive terminal voltage is charged on the current potential than the low diode V1 forward conduction voltage drop of VCC; Be changed to high level with control signal this moment, and triode Q3 turn-offs, triode Q1 conducting; The collector voltage of triode Q1 becomes low level, triode Q2 conducting, and the cathode voltage of capacitor C 1 is become the voltage of VCC by lower voltage; The cathode voltage of capacitor C 1 is with respect to control ground at this moment; To be to approach 2 times VCC, this VCC voltage of 2 times have produced the big electric current that provides coil to start through the coil of relay K 1; And need not to extract the output of big electric current from power supply, reduced the pressure of power supply.Capacitor C 1 electric energy stored will be consumed by the coil of relay K 1 very soon, and the current potential at capacitor C 1 two ends will be tending towards equal, and the electric current of keeping of the coil of relay K 1 is provided by VCC.
Use contrast: like the relay coil of specified 24V, coil resistance is assumed to 100 ohm, and VCC is set in 24V, and the power consumption of keeping of coil will be 5.76W, and also need provide a big electric current to inject in actuating of relay moment; If VCC is set in 16V, the holding power of relay coil is 2.56W like this, this shows, coil is kept power consumption and reduced significantly.Further reduce the pressure of power supply, improve system effectiveness.
Claims (1)
1. relay coil energy-saving controller; It is characterized in that: control signal is received the base stage of triode Q1 through resistance R 1; The grounded emitter of triode Q1, coil one end of the collector connecting relay K1 of triode Q1 and the negative terminal of resistance R 2 and voltage-stabiliser tube V3, the positive ending grounding of V3; The anode of another termination capacitor C 1 of the coil of relay K 1 and the negative terminal of diode V1, the positive termination power of diode V1; The other end of the base stage connecting resistance R2 of triode Q2 and the anode of diode V2, the collector electrode of triode Q2 connects power supply, and the negative pole of diode V2 connects power supply, and the emitter of triode Q2 links to each other with the negative terminal of capacitor C 1, the other end of resistance R 3; Control signal is received the base stage of triode Q3, the grounded emitter of triode Q3, the collector electrode connecting resistance R3 of triode Q3 through resistance R 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210142645XA CN102683112A (en) | 2012-05-10 | 2012-05-10 | Energy-saving controller for coil of relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210142645XA CN102683112A (en) | 2012-05-10 | 2012-05-10 | Energy-saving controller for coil of relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102683112A true CN102683112A (en) | 2012-09-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210142645XA Pending CN102683112A (en) | 2012-05-10 | 2012-05-10 | Energy-saving controller for coil of relay |
Country Status (1)
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| CN (1) | CN102683112A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354193A (en) * | 2013-06-26 | 2013-10-16 | 华为技术有限公司 | Relay drive circuit and relay control method |
| CN104880975A (en) * | 2014-02-28 | 2015-09-02 | 深圳市海洋王照明工程有限公司 | Interface circuit of low-voltage chip controlled high-voltage device and low-voltage control circuit |
| CN104900449A (en) * | 2014-03-03 | 2015-09-09 | 鸿富锦精密工业（深圳）有限公司 | Relay control circuit |
| CN110265259A (en) * | 2019-06-27 | 2019-09-20 | 厦门拓宝科技有限公司 | A kind of protection circuit of anti-relay great instantaneous current |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073039A (en) * | 1991-12-03 | 1993-06-09 | 毛荣之 | Slight power consumption relay, contactor |
| CN201918318U (en) * | 2011-01-24 | 2011-08-03 | 李喜通 | Relay electricity-saving controller capable of expanding load capacity |
| CN202564138U (en) * | 2012-05-10 | 2012-11-28 | 合肥同智机电控制技术股份有限公司 | Energy-saving controller of relay coil |
-
2012
- 2012-05-10 CN CN201210142645XA patent/CN102683112A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073039A (en) * | 1991-12-03 | 1993-06-09 | 毛荣之 | Slight power consumption relay, contactor |
| CN201918318U (en) * | 2011-01-24 | 2011-08-03 | 李喜通 | Relay electricity-saving controller capable of expanding load capacity |
| CN202564138U (en) * | 2012-05-10 | 2012-11-28 | 合肥同智机电控制技术股份有限公司 | Energy-saving controller of relay coil |
Non-Patent Citations (1)
| Title |
|---|
| 魏福立: "低电压下的继电器控制电路", 《电气时代》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354193A (en) * | 2013-06-26 | 2013-10-16 | 华为技术有限公司 | Relay drive circuit and relay control method |
| CN103354193B (en) * | 2013-06-26 | 2016-07-06 | 华为技术有限公司 | A kind of relay drive circuit and the method controlling relay |
| CN104880975A (en) * | 2014-02-28 | 2015-09-02 | 深圳市海洋王照明工程有限公司 | Interface circuit of low-voltage chip controlled high-voltage device and low-voltage control circuit |
| CN104880975B (en) * | 2014-02-28 | 2018-11-06 | 深圳市海洋王照明工程有限公司 | Low-voltage chip controls the interface circuit and low-voltage control circuit of high tension apparatus |
| CN104900449A (en) * | 2014-03-03 | 2015-09-09 | 鸿富锦精密工业（深圳）有限公司 | Relay control circuit |
| CN104900449B (en) * | 2014-03-03 | 2017-10-10 | 中山市云创知识产权服务有限公司 | Control relay circuit |
| CN110265259A (en) * | 2019-06-27 | 2019-09-20 | 厦门拓宝科技有限公司 | A kind of protection circuit of anti-relay great instantaneous current |
| CN110265259B (en) * | 2019-06-27 | 2024-04-09 | 厦门拓宝科技有限公司 | Protection circuit for preventing transient impact current of relay |
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Application publication date: 20120919 |