CN203218188U - Energy-saving alternating-current contactor coils - Google Patents
Energy-saving alternating-current contactor coils Download PDFInfo
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- CN203218188U CN203218188U CN 201320204582 CN201320204582U CN203218188U CN 203218188 U CN203218188 U CN 203218188U CN 201320204582 CN201320204582 CN 201320204582 CN 201320204582 U CN201320204582 U CN 201320204582U CN 203218188 U CN203218188 U CN 203218188U
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- triode
- rectifier
- energy
- coil
- limiting circuit
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- 238000004804 winding Methods 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides energy-saving alternating-current contactor coils. The coils include coils and a framework; the coils include a holding coil L2 and a closing coil L1; the framework is provided with an energy-saving device which includes a rectifier D1, a control circuit, a voltage limiting circuit, and a current foldback circuit; the rectifier D1 is connected respectively with the control circuit and the voltage limiting circuit; the output ends of the control circuit and the voltage limiting circuit are connected in order with the normally closed terminal S1 of the contactor and the closing coil L1; the current limiting circuit is serially connected with the holding coil L2; a piezoresistor R5 is arranged between the input ends of a power source; a fuse F1 is serially connected between the input ends of the power source and the rectifier D1. Through adoption of the double coil design, the voltage of the closing coil is reduced through a voltage reducing circuit so that the closing coil can be closed at a lower voltage; when the closing coil is switched off because of the normally closed terminal of the contactor, the holding coil is used to maintain a switch-on state. So it is ensured that the coils are at a small-current state all the time and thus noises and energy consumption of the contactor are reduced in a better way.
Description
Technical field
The utility model belongs to the electric equipment field, is specifically related to a kind of energy-saving alternating current contactor coil.
Background technology
A.C. contactor is to be widely used as cut-offfing and control circuit of electric power.It utilizes main contact to open and close circuit, carries out control command with auxiliary contact.Main contact generally has only normal opened contact, and auxiliary contact often has two pairs of contacts with Chang Kai and normally closed function, and small-sized contactor also often cooperates main circuit to use as auxiliary relay.
Contactor mainly is made up of electromagnetic system, contact system, arc quenching system and other part.Electromagnetic system comprises solenoid and iron core, is the important component part of contactor, relies on it to drive closure and the disconnection of contact.
When contactor moved, current coil all must keep keeping the attract current of its electromagnet, its current coil to keep electric current very big, not only waste a large amount of electric energy, and send noise, but also shortened the physical life of itself, also will consider heat dissipation problem sometimes.
The utility model content
In order to solve the deficiency of above-mentioned technology, the purpose of this utility model provides a kind of energy-saving alternating current contactor coil, and it has solved existing coil, and to keep electric current bigger, the temperature problem of higher.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of energy-saving alternating current contactor coil, it comprises coil and skeleton, described coil comprises holding coil L2 and pull-in winding L1, on the described skeleton energy saver is housed, described energy saver comprises rectifier D1, control circuit, pressure limiting circuit and current-limiting circuit, described rectifier D1 respectively with control circuit, pressure limiting circuit connects, described control circuit, the output of pressure limiting circuit meets normal-closed end S1 and the pull-in winding L1 of contactor successively, described current-limiting circuit is connected with holding coil L2, be provided with piezo-resistance R5 between the described power input, fuse F1 connects between described power input and the rectifier D1.
Described control circuit constitutes: the positive output end of rectifier D1 connects the collector electrode of the Q2 of triode Q1 and triode, parallel resistance R3 between the base stage of the positive output end of rectifier D1 and triode Q2, the emitter of triode Q2 connects the base stage of triode Q1, the emitter of triode Q1 connects the normal-closed end S1 of contactor, parallel resistance R1 between the collector and emitter of triode Q1.
Described pressure limiting circuit constitutes: the collector electrode of triode Q3 is connected with the base stage of triode Q2, the emitter of triode Q3 connects the negative output terminal of rectifier D1, the base stage difference connecting resistance R6 of triode Q3 and an end of resistance R 4, the negative output terminal of another termination rectifier D1 of resistance R 6, the output of resistance R 4 other end connection control circuits.
Described current-limiting circuit comprises a plurality of rectifier diodes of series connection successively.
The described pull-in winding L1 two ends backward diode that is used for reverse protection in parallel.
The normal-closed end S1 parallel discharge capacitor C 1 of described contactor.
The beneficial effects of the utility model are, the design of employing twin coil, use reduction voltage circuit that pull-in winding is reduced voltage, make it with less voltage adhesive, when pull-in winding disconnects owing to the contactor normal-closed end, keep attracting state by keeping coil, guarantee that coil is in the small electric stream mode always, can better reduce noise and the energy consumption of contactor.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
Referring to Fig. 1; the utility model comprises coil and skeleton; described coil comprises holding coil L2 and pull-in winding L1; on the described skeleton energy saver is housed; described energy saver comprises rectifier D1; control circuit 2; pressure limiting circuit 1 and current-limiting circuit 3; described rectifier D1 respectively with control circuit 2; pressure limiting circuit 1 connects; described control circuit 2; the output of pressure limiting circuit 1 meets normal-closed end S1 and the pull-in winding L1 of contactor successively; described current-limiting circuit 3 is connected with holding coil L2; be provided with piezo-resistance R5 between the described power input; the fuse F1 that connects between described power input and the rectifier D1 adopts piezo-resistance R5 and the energy saver of fuse F1 to protect.
Described control circuit 2 constitutes: the positive output end of rectifier D1 connects the collector electrode of the Q2 of triode Q1 and triode, parallel resistance R3 between the base stage of the positive output end of rectifier D1 and triode Q2, the emitter of triode Q2 connects the base stage of triode Q1, the emitter of triode Q1 connects the normal-closed end S1 of contactor, parallel resistance R1 between the collector and emitter of triode Q1, be used for control pull-in winding L1 excessively.
Described pressure limiting circuit 1 constitutes: the collector electrode of triode Q3 is connected with the base stage of triode Q2, the emitter of triode Q3 connects the negative output terminal of rectifier D1, the base stage difference connecting resistance R6 of triode Q3 and an end of resistance R 4, the negative output terminal of another termination rectifier D1 of resistance R 6, the output of resistance R 4 other end connection control circuits 2, reduce by the voltage of pressure limiting circuit 1 with pull-in winding L1, make pull-in winding L1 realize adhesive with less voltage.
Described current-limiting circuit 3 comprises a plurality of rectifier diodes of series connection successively, because diode can play the effect that reduces electric current, so adopt a plurality of rectifier diode series connection, makes holding coil L2 when normal operation, the coil little power consumption.
The described pull-in winding L1 two ends backward diode that is used for reverse protection in parallel avoids coil to be reversed puncture.
The normal-closed end S1 parallel discharge capacitor C 1 of described contactor, the electricity that produces when disconnecting for reducing normal-closed end S1 avoids burning the contact.
By control circuit 2 control pull-in winding L1 excessively, adhesive, contactor normal-closed end S1 disconnects then, pull-in winding L1 is quit work, and the holding coil L2 that is connected between the power input works on, and keeps the coil attracting state, simultaneously because the power consumption of holding coil L2 is little, can make coil be in the operating state of less electric current always, guarantee that coil is in low energy consumption, the running status of low temperature always.
Embodiment should not be considered as restriction of the present utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection range of the present utility model.
Claims (6)
1. energy-saving alternating current contactor coil, it is characterized in that: it comprises coil and skeleton, described coil comprises holding coil L2 and pull-in winding L1, on the described skeleton energy saver is housed, described energy saver comprises rectifier D1, control circuit (2), pressure limiting circuit (1) and current-limiting circuit (3), described rectifier D1 respectively with control circuit (2), pressure limiting circuit (1) connects, described control circuit (2), the output of pressure limiting circuit (1) meets normal-closed end S1 and the pull-in winding L1 of contactor successively, described current-limiting circuit (3) is connected with holding coil L2, be provided with piezo-resistance R5 between the power input, fuse F1 connects between power input and the rectifier D1.
2. energy-saving alternating current contactor coil according to claim 1, it is characterized in that, described control circuit (2) constitutes: the positive output end of rectifier D1 connects the collector electrode of the Q2 of triode Q1 and triode, parallel resistance R3 between the base stage of the positive output end of rectifier D1 and triode Q2, the emitter of triode Q2 connects the base stage of triode Q1, the emitter of triode Q1 connects the normal-closed end S1 of contactor, parallel resistance R1 between the collector and emitter of triode Q1.
3. energy-saving alternating current contactor coil according to claim 1, it is characterized in that, described pressure limiting circuit (1) constitutes: the collector electrode of triode Q3 is connected with the base stage of triode Q2, the emitter of triode Q3 connects the negative output terminal of rectifier D1, the base stage difference connecting resistance R6 of triode Q3 and an end of resistance R 4, the negative output terminal of another termination rectifier D1 of resistance R 6, the output of resistance R 4 other end connection control circuits (2).
4. energy-saving alternating current contactor coil according to claim 1 is characterized in that, described current-limiting circuit (3) comprises a plurality of rectifier diodes of series connection successively.
5. energy-saving alternating current contactor coil according to claim 1 is characterized in that, the described pull-in winding L1 two ends backward diode that is used for reverse protection in parallel.
6. energy-saving alternating current contactor coil according to claim 1 is characterized in that, the normal-closed end S1 parallel discharge capacitor C 1 of described contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204582 CN203218188U (en) | 2013-04-22 | 2013-04-22 | Energy-saving alternating-current contactor coils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320204582 CN203218188U (en) | 2013-04-22 | 2013-04-22 | Energy-saving alternating-current contactor coils |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203218188U true CN203218188U (en) | 2013-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320204582 Expired - Fee Related CN203218188U (en) | 2013-04-22 | 2013-04-22 | Energy-saving alternating-current contactor coils |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203218188U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713058A (en) * | 2020-12-18 | 2021-04-27 | 中车永济电机有限公司 | Main contactor for converter |
| CN121034905A (en) * | 2025-10-30 | 2025-11-28 | 深圳天邦达科技有限公司 | A method and system for energy-saving control of automotive relays |
-
2013
- 2013-04-22 CN CN 201320204582 patent/CN203218188U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713058A (en) * | 2020-12-18 | 2021-04-27 | 中车永济电机有限公司 | Main contactor for converter |
| CN121034905A (en) * | 2025-10-30 | 2025-11-28 | 深圳天邦达科技有限公司 | A method and system for energy-saving control of automotive relays |
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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 |
Granted publication date: 20130925 Termination date: 20150422 |
|
| EXPY | Termination of patent right or utility model |