CN201204110Y - DC coil energy-saving control circuit - Google Patents
DC coil energy-saving control circuit Download PDFInfo
- Publication number
- CN201204110Y CN201204110Y CNU2008200335043U CN200820033504U CN201204110Y CN 201204110 Y CN201204110 Y CN 201204110Y CN U2008200335043 U CNU2008200335043 U CN U2008200335043U CN 200820033504 U CN200820033504 U CN 200820033504U CN 201204110 Y CN201204110 Y CN 201204110Y
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- coil
- control circuit
- circuit
- time relay
- saving control
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Abstract
The utility model relates to a DC current coil energy saving control circuit, belonging to the technical field of a control circuit. The control circuit includes a bridge type rectifying circuit, two power input ends of which is provided with a time relay in parallel. Contacts of the time relay is connected in series on one of a bridge arm of the bridge type rectifying circuit. When two output ends of the bridge type rectifying circuit is connected with a DC magnet coil, the circuit is in a state of full bridge rectification when the DC coil is attracted with an electromagnet; after attracting, the contacts of the time relay is broken, the circuit is in a state of half-wave rectification, for maintaining attraction of the electromagnet, thereby not only effectively protecting normal use of the coil and the control circuit, but also cancelling economic resistance and saving energy.
Description
Technical field
The utility model relates to a kind of dc coil energy-saving control circuit, and especially a kind of energy-saving control circuit of alternative economy resistance belongs to the control circuit technical field.
Background technology
Dc coil has a wide range of applications in factory as one of main executive component of electromechanical integration, and its operating voltage generally all is to adopt bridge rectifier or DC source power supply.In order to reduce the heating of coil after adhesive, in coil, seal in the resistance (being commonly called as economy resistance) of certain resistance usually, thereby with 40%～60% voltage consumption on this resistance, to reduce the electric current that coil midstream is crossed.At this moment; though the voltage and current in the coil descends to some extent; but as also flowing through certain electric current on the economy resistance of step-down, current limliting; therefore also consume certain electric energy; the result not only wastes electric energy; and economy resistance usually can appear because of overheated phenomenon of being burnt takes place, directly have influence on the operate as normal of dc coil.
Retrieval finds, application number is that 03111417.2,00242962.4,93229315.8 and 01210581.3 Chinese patent application is relevant with the application.Wherein 03111417.2 mainly introduced adopt overall plastic envelope shell overcome primary coil power consumption big, eddy current, inefficient problem are arranged, and need additional resistance to be used.00242962.4 utilize a pair of contact switch to carry out filtering and extinguishing arc, not only got rid of and disturbed but also realized quick demagnetization.93229315.8, the repulsion in the magnetic field that mainly produces in coil B by permanent magnet A and direct current is used for the mobile of control valve core.01210581.3 mainly by DC boosting translation circuit, high-voltage control circuit, accumulator, open the valve circuits for triggering, close valve controling circuit, electromagnetic valve coil L etc. constitutes.But above-mentioned prior art is the ideal scheme of non-alternative economy resistance all.
The utility model content
The purpose of this utility model is: a kind of dc coil energy-saving control circuit that can replace the economy resistance control solenoid current that dc coil seals in after adhesive is proposed, thus the energy consumption of saving and reduce fault.
In order to reach above purpose, dc coil energy-saving control circuit of the present utility model, mainly be made of bridge rectifier, be parallel with the time relay between two power inputs of described bridge rectifier, the contact of the described time relay is connected on one of brachium pontis of bridge rectifier.
Like this, behind two output termination d-c solenoids of bridge rectifier, when dc coil adhesive electromagnet, this circuit is in the full-bridge rectification state; And after the adhesive, time relay contact disconnects, and this circuit is in the halfwave rectifier state, keeps the adhesive of electromagnet, has therefore not only protected the normal use of coil and control circuit effectively, and because of having cancelled economy resistance, so have energy-conserving action.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of an embodiment of the utility model.
Embodiment
Embodiment one
The dc coil energy-saving control circuit that present embodiment is used for substituting economy resistance as shown in Figure 1, wherein each device name and corresponding sequence number see the following form
| 6 | XL | Dc coil | On-the-spot definite |
| 5 | RD | Fuse | 5A |
| 4 | R | Resistance | 2K/6W |
| 3 | C | Electric capacity | 0.2μF |
| 2 | KT | The time relay | JSZ3C-E |
| 1 | ZD | Diode | ZP10A |
| Sequence number | Code name | Title | Specification |
The problem that present embodiment will solve is, will adopt the series connection economy resistance to reduce the mode that keep electric current in the coil after traditional dc coil adhesive, changes into and adopts the method that directly reduces output voltage to reduce the electric current of keeping in the coil.Its physical circuit is seen Fig. 1, in the bridge rectifier that four diode ZD1, ZD2, ZD3, ZD4 constitute, and time relay KT in parallel between two power inputs, connect with ZD1 in one of bridge rectifier brachium pontis in its contact.Two output termination electromagnet coil XL of this bridge rectifier, and and connect R, C filter circuit.
As everyone knows, electromagnet is when adhesive, and electromagnetic attraction and magnet square distance that hot-wire coil produces are inversely proportional to.So need very big electric current in adhesive moment, in case after the magnet adhesive as long as the less electric current of keeping.Present embodiment is powered in electromagnetic actuation moment full-bridge rectification; Under the effect at the time relay after the adhesive, disconnect a brachium pontis of rectifier bridge, form halfwave rectifier, its output voltage changes 0.45Ud into by 0.9Ud, operating voltage reduces half, because the resistance of coil is constant, the electric current that draws coil this moment according to Ohm's law is drop by half also, and the front and back current ratio is 0.9Id:0.45Id; The heat Q=I that electric current produces in coil
2* R*T.This shows that 1/4 the when heat when keeping adhesive in the coil is coil motion reduced widely, the result has not only protected the normal use of coil and control circuit effectively, and has saved electric energy.
A kind of circuit structure of alternative economy resistance that experiment showed, present embodiment is simple, and cost economy has good stable and energy-conservation effect.
Claims (2)
1, a kind of dc coil energy-saving control circuit, it is characterized in that: mainly constitute by bridge rectifier, be parallel with the time relay between two power inputs of described bridge rectifier, the contact of the described time relay is connected on one of brachium pontis of bridge rectifier.
2, according to the described dc coil energy-saving control circuit of claim 1, it is characterized in that: two output termination electromagnet coils of described bridge rectifier, and and connect filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200335043U CN201204110Y (en) | 2008-03-24 | 2008-03-24 | DC coil energy-saving control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200335043U CN201204110Y (en) | 2008-03-24 | 2008-03-24 | DC coil energy-saving control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201204110Y true CN201204110Y (en) | 2009-03-04 |
Family
ID=40426424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200335043U Expired - Fee Related CN201204110Y (en) | 2008-03-24 | 2008-03-24 | DC coil energy-saving control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201204110Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219799A (en) * | 2013-03-29 | 2013-07-24 | 李华 | Intelligent control device for power transformer |
| US10605478B1 (en) | 2019-06-07 | 2020-03-31 | Emerson Electric Co. | Control circuits for supplying current to actuate gas valves in HVAC systems |
-
2008
- 2008-03-24 CN CNU2008200335043U patent/CN201204110Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219799A (en) * | 2013-03-29 | 2013-07-24 | 李华 | Intelligent control device for power transformer |
| CN103219799B (en) * | 2013-03-29 | 2015-10-14 | 李华 | Intelligent control device for power transformer |
| US10605478B1 (en) | 2019-06-07 | 2020-03-31 | Emerson Electric Co. | Control circuits for supplying current to actuate gas valves in HVAC systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20140324 |