CN204303686U - Wide region A.C. contactor control device - Google Patents
Wide region A.C. contactor control device Download PDFInfo
- Publication number
- CN204303686U CN204303686U CN201520023565.1U CN201520023565U CN204303686U CN 204303686 U CN204303686 U CN 204303686U CN 201520023565 U CN201520023565 U CN 201520023565U CN 204303686 U CN204303686 U CN 204303686U
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- Prior art keywords
- circuit
- wide region
- contactor
- power supply
- boost circuit
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Abstract
The utility model discloses a kind of wide region A.C. contactor control device, comprise wide region DC source, A.C. contactor, power supply circuits, governor circuit, Boost circuit and protection circuit, described wide region DC source input voltage is for exchanging 85V-270V, output voltage is 24V, input voltage exports 24V DC voltage respectively to described power supply circuits and described Boost circuit through wide region DC source, after powering carry out pulse width modulation to governor circuit after 24V direct current being depressurized to 17V by described power supply circuits process, output pulse signal controls Boost circuit and boosts to A.C. contactor adhesive, simultaneously whether Boost circuit feeds back signal to governor circuit and normally boosts, when Boost circuit boosts to 316V, protection circuit is depressurized to 5V by power supply circuits process, and wide region DC source exports 24V direct current and keeps A.C. contactor to continue adhesive through Boost circuit.
Description
Technical field
The utility model relates to contactor control field, specifically refer to a kind of can the wide region A.C. contactor control device of expand cooperative exchanges contactor operating voltage range.
Background technology
The operating voltage of the most of electromagnetic type A.C. contactors adopted in the market is the 80%-120% of rated value 220V.When voltage lower than rated value 220V 80% time, shaking just appears in contactor, the phenomenon of adhesive shakiness; When voltage lower than rated value 220V 50% time, contactor just completely can not normally adhesive.
When civil power is seriously unstable and load is the occasion of Larger Dynamic (as inductive loads such as large-size machines), voltage is lower than 80% of load voltage value 220V, A.C. contactor adhesive becomes extremely unstable, causes A.C. contactor to occur over-current phenomenon avoidance, thus makes equipment burnout.For making A.C. contactor normally work lower than during operating voltage at input voltage, therefore need a kind of device to ensure that A.C. contactor also can normally work in more wide-range voltage.
Utility model content
The purpose of this utility model is to provide a kind of control device for wide region A.C. contactor.The governor circuit control Boost circuit that utilizes the utility model has solved because supply voltage is not enough, A.C. contactor cannot normally adhesive and the problem causing equipment to lose, make the work that A.C. contactor can be reliable and stable within the scope of input ac voltage 85V-270V, improve the reliability and stability of equipment work.
For achieving the above object, the technical scheme that the utility model adopts is: wide region A.C. contactor control device, comprises wide region DC source, A.C. contactor, power supply circuits, governor circuit, Boost circuit and protection circuit; Described wide region DC source is connected to Boost circuit and power supply circuits; described power supply circuits are connected to governor circuit; described governor circuit and Boost circuit are interconnected; described Boost circuit is connected to protection circuit, and described protection circuit is connected to A.C. contactor and power supply circuits.
Described wide region DC source input voltage is interchange 85V-270V, output voltage is 24V, input voltage exports 24V DC voltage respectively to described power supply circuits and described Boost circuit through described wide region DC source, power to after 24V direct current is depressurized to 17V by power supply circuits process described governor circuit, the Boost circuit after described governor circuit carries out pulse width modulation described in output pulse signal control boosts to described A.C. contactor adhesive.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is the utility model Boost circuit figure
In Fig. 1, each label is respectively:
1: wide region DC source, 2: power supply circuits: 3: governor circuit, 4:Boost booster circuits, 5: protection circuit, 6: A.C. contactor.
Detailed description of the invention
Below in conjunction with the present embodiment and accompanying drawing thereof, the utility model is described in detail again.
See Fig. 1, wide region A.C. contactor control device theory diagram of the present utility model, comprises wide region DC source 1, power supply circuits 2, governor circuit 3, Boost circuit 4, protection circuit 5, A.C. contactor 6; Microprocessor 7, LCDs 8, indicator lamp 9; Wide region DC source 1 is connected to Boost and boosts 4 circuit and power supply circuits 2, power supply circuits 2 are connected to governor circuit 3, governor circuit 3 and Boost circuit 4 are interconnected, Boost circuit 4 is connected to protection circuit 5, and protection circuit 5 is connected to A.C. contactor 6 and power supply circuits 2; Wherein A.C. contactor 6 is external load.
Alternating current is converted to 24V direct current and inputs to Boost circuit 4 and power supply circuits 2 respectively by wide region DC source 1 DC source, 24V DC voltage is down to 17V and is worked for governor circuit 3 by power supply circuits, after governor circuit 3 carries out pulse width modulation, output pulse signal controls Boost circuit 4 and boosts to A.C. contactor 6 adhesive, and simultaneously whether Boost circuit 4 feeds back signal to governor circuit 3 and normally boost; When Boost circuit 4 boosts to 316V, protection circuit 5 is depressurized to 5V by power supply circuits 2 process, governor circuit 3 does not work, and Boost circuit 4 stops boosting, and wide region DC source 1 exports 24V direct current and continues adhesive through Boost circuit 4 to keep A.C. contactor 6; When Boost circuit 4 does not connect external load, Boost circuit exports a stable high direct voltage 316V.
See Fig. 2, wide region A.C. contactor control device Boost circuit figure of the present utility model, at least comprises inductance L, diode D, electric capacity C, switching tube MOSFET; Boost circuit is the energy transfer process of an inductance, makes output voltage higher than input voltage.When switching tube MOSFET conducting, wide region DC source exports 24V direct current and forms loop via inductance L and switching tube MOSFET, and electric current is converted into magnetic energy storage in inductance L; When switching tube MOSFET turns off, magnetic energy in inductance L on the negative right side, an inductance L end left side is just being converted into electric energy, this voltage superposition is at wide region DC source anode, be connected load with output terminals A with B via diode D, electric capacity C and form loop, after boosting to A.C. contactor 6 adhesive, governor circuit 3 stops controlling to continue boosting, and wide region DC source input 24V DC voltage keeps the attracting state of A.C. contactor 6.
Claims (2)
1. wide region A.C. contactor control device, comprises wide region DC source, A.C. contactor, power supply circuits, governor circuit, Boost circuit and protection circuit; It is characterized in that: described wide region DC source is connected to Boost circuit and power supply circuits; described power supply circuits are connected to governor circuit; described governor circuit and Boost circuit are interconnected; described Boost circuit is connected to protection circuit, and described protection circuit is connected to A.C. contactor and power supply circuits.
2. wide region A.C. contactor control device according to claim 1, it is characterized in that: described wide region DC source input voltage is for exchanging 85V-270V, output voltage is 24V, input voltage exports 24V DC voltage respectively to described power supply circuits and described Boost circuit through described wide region DC source, power to after 24V direct current is depressurized to 17V by described power supply circuits process described governor circuit, Boost circuit after described governor circuit carries out pulse width modulation described in output pulse signal control boosts to described A.C. contactor adhesive, whether the Boost circuit simultaneously feeds back signal to governor circuit and normally boosts, when described Boost circuit boosts to 316V, described protection circuit is depressurized to 5V by described power supply circuits process, and described wide region DC source exports 24V direct current and continues adhesive via the A.C. contactor described in the maintenance of described Boost circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023565.1U CN204303686U (en) | 2015-01-14 | 2015-01-14 | Wide region A.C. contactor control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520023565.1U CN204303686U (en) | 2015-01-14 | 2015-01-14 | Wide region A.C. contactor control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204303686U true CN204303686U (en) | 2015-04-29 |
Family
ID=53109208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520023565.1U Expired - Fee Related CN204303686U (en) | 2015-01-14 | 2015-01-14 | Wide region A.C. contactor control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204303686U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551885A (en) * | 2015-12-31 | 2016-05-04 | 广州金升阳科技有限公司 | Energy-saving circuit for contactor |
| CN105977100A (en) * | 2016-06-30 | 2016-09-28 | 株洲中车时代电气股份有限公司 | Control method and device for DC contactor for rail transit |
-
2015
- 2015-01-14 CN CN201520023565.1U patent/CN204303686U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551885A (en) * | 2015-12-31 | 2016-05-04 | 广州金升阳科技有限公司 | Energy-saving circuit for contactor |
| CN105977100A (en) * | 2016-06-30 | 2016-09-28 | 株洲中车时代电气股份有限公司 | Control method and device for DC contactor for rail transit |
| CN105977100B (en) * | 2016-06-30 | 2018-08-21 | 株洲中车时代电气股份有限公司 | A kind of control method and device of rail traffic D.C. contactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180507 Address after: 300171 six Hewei Road, Hedong District, Tianjin, and Wan Hai building, 2511, Dazhi Gu eight road. Patentee after: Tianjin he pole electrical technology Co.,Ltd. Address before: 325600 Yueqing City Economic Development Zone, Wenzhou, Zhejiang 159 No. 6 Road (three Electrical Appliance Group Co., Ltd.) Patentee before: ZHEJIANG HEJI ELECTRIC TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20220114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |