CN207909797U - A kind of vacuum contactor solenoid controlled circuit - Google Patents
A kind of vacuum contactor solenoid controlled circuit Download PDFInfo
- Publication number
- CN207909797U CN207909797U CN201721355361.3U CN201721355361U CN207909797U CN 207909797 U CN207909797 U CN 207909797U CN 201721355361 U CN201721355361 U CN 201721355361U CN 207909797 U CN207909797 U CN 207909797U
- Authority
- CN
- China
- Prior art keywords
- coil
- contactor
- voltage
- bipolar transistor
- attracted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model is related to the solenoid controlled circuit of vacuum contactor, specifically a kind of control vacuum contactor d-c solenoid high pressure is attracted, the control circuit of low pressure sticking.The d-c solenoid of vacuum contactor needs higher voltage when being attracted, when sticking needs lower voltage, if voltage when maintaining to be attracted for a long time when sticking, not only causes coil heating to influence coil service life, can also cause the waste of the energy.A1, A2 input for single phase alternating current power supply in control circuit, DC power supply is obtained after full-wave rectification bridge U1 and filter capacitor C1, L is the coil of A.C. contactor, DC power supply adjusts the voltage of contactor coil by the Sofe Switch effect and high speed breaking capacity of insulated gate bipolar transistor F1, total head is attracted when actuation, output voltage is reduced when sticking, is reduced and is maintained electric current, reduces the power consumption of coil.
Description
Technical field
The break-make of vacuum contactor controls.
Background technology
Vacuum contactor is widely used in high pressure, the control of the break-make of high-power power supply unit, and break-make control generally uses
The electromagnetic coil of direct current supply realizes that the on-off of main contacts, d-c solenoid need higher voltage, sticking when being attracted
When need lower voltage, if when sticking for a long time maintain be attracted when voltage, not only cause coil heating influence coil use
Service life can also cause the waste of the energy, generally use series resistor decompression when sticking at present or utilize contactor auxiliary contact
Realize that the technical solution of dual power supply switching power supply, two schemes have long-play poor reliability.
Invention content
The purpose of this utility model be using insulated gate bipolar transistor Sofe Switch effect and high speed breaking capacity come
The voltage for adjusting contactor coil, total head is attracted when actuation, and when maintenance, which passes through, controls insulated gate bipolar transistor gate pole PWM wave
The virtual value of Duty ratio control its output voltage reduce output voltage, reduce and maintain electric current, reduce the power consumption of coil.
Technical solution：The present invention is achieved through the following technical solutions, and circuit is mainly by full-wave rectifying circuit U1, filter
Wave capacitance C1, insulated gate bipolar transistor F1, contactor coil L compositions, full-wave rectifying circuit filter capacitor export direct current
Source anode D+, connects the 2nd pin of F1, the 2nd pin of cathode D- connection contactor coils L, insulated gate bipolar transistor
Export the 1st pin of the 3rd pin connection contactor coil L of F1, the gate pole of control signal connection insulated gate bipolar transistor
The 1st pin of G, F1 control insulated gate bipolar by controlling the duty ratio of insulated gate bipolar transistor F1 gate pole PWM waves
The virtual value of transistor F1 output DC voltages, low pressure supplies when realizing high voltage supply, sticking when contactor DC coil L is attracted
Electricity and power-off control.
The use advantageous effect of the utility model is：Control circuit is contactless and dissipative cell, and circuit is simple and reliable, contact
Device full voltage starting the suction-combining force fast and reliable can be attracted greatly, and decompression can reduce contactor coil power consumption when maintenance, and be attracted
Power is small to reach quick disjunction in disjunction, improve the service life of contactor.
Description of the drawings：
Fig. 1 vacuum contactor solenoid controlled circuit diagrams
Fig. 2 controls signal waveforms
Specific implementation mode：
The utility model is will to obtain DC power supply after single phase alternating current power supply rectifying and wave-filtering that contactor inputs, utilize insulation
Grid bipolar transistor Sofe Switch effect and copped wave function come realize contactor coil start, maintain size of current control and
Break function.As shown in Figure 1, A1, A2 are ac power input end, obtained after full-wave rectification bridge U1 and filter capacitor C1 straight
Galvanic electricity source, D+ are DC circuit anode, and D- is DC circuit cathode, and L is the coil of A.C. contactor.As shown in Fig. 2, high level
Enabling signal is connected to the 1st pin of the control terminal F1 of F1, F1 conductings, and direct current is flowed into from the positive ends D+, is connect to exchange through F1
It after tentaculum coil L, is flowed out from the ends cathode D-, contactor coil L full voltage startings at this time make the fast and reliable actuation of contactor；Contact
After device is attracted, control signal pwm signal is maintained, as shown in Fig. 2, it is connected to the 1st pin of the control terminal F1 of F1, the 3rd pipe of F1
Foot exports chopping voltage, and mono- decompression of coil L is supplied to maintain direct current after the inductive effect filtering that contactor coil L is carried
Voltage, pulse-type current are sent out by the 3rd pin of F1, and the ends B2 are flowed back to after L is filtered.Chopping depressuring mode, which disclosure satisfy that, to be connect
Tentaculum coil normal work needs to reduce power consumption again simultaneously；Low level stop signal, as shown in Fig. 2, being connected to F1 control terminals
The 1st pin of F1, F1 end, L dead electricity, and the suction-combining force small contactor disconnects rapidly after pressure reduction.
Claims (1)
1. a kind of vacuum contactor solenoid controlled circuit, it is characterised in that：Circuit is mainly by full-wave rectifying circuit (U1), filter
Wave capacitance (C1), insulated gate bipolar transistor (F1), contactor coil (L) composition, the output of full-wave rectifying circuit filter capacitor
DC power anode (D+), 2 pins of connection insulated gate bipolar transistor (F1), cathode (D-) connect contactor coil (L)
The 2nd pin, insulated gate bipolar transistor output be F1 the 3rd pin connection contactor coil (L) the 1st pin, control
The 1st pin of gate pole G, that is, F1 of signal connection insulated gate bipolar transistor processed, by controlling insulated gate bipolar transistor
(F1) duty ratio of gate pole PWM wave controls the virtual value that insulated gate bipolar transistor (F1) exports DC voltage, and realization connects
Low-voltage power supply and power-off control when high voltage supply, sticking when tentaculum DC coil (L) is attracted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355361.3U CN207909797U (en) | 2017-10-12 | 2017-10-12 | A kind of vacuum contactor solenoid controlled circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721355361.3U CN207909797U (en) | 2017-10-12 | 2017-10-12 | A kind of vacuum contactor solenoid controlled circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207909797U true CN207909797U (en) | 2018-09-25 |
Family
ID=63570704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721355361.3U Active CN207909797U (en) | 2017-10-12 | 2017-10-12 | A kind of vacuum contactor solenoid controlled circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207909797U (en) |
-
2017
- 2017-10-12 CN CN201721355361.3U patent/CN207909797U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203377777U (en) | A soft start circuit of an auxiliary power supply | |
| CN203250689U (en) | Constant magnetic-holding alternating-current contactor control circuit | |
| CN103247475B (en) | Constant-magnetic maintaining AC contactor control circuit and control method thereof | |
| CN207909797U (en) | A kind of vacuum contactor solenoid controlled circuit | |
| CN107919250A (en) | A kind of gating pulse A.C. contactor, which starts, remains on circuit | |
| CN203367662U (en) | Socket controlling on and off according to load current signal | |
| CN102693872B (en) | Alternating-current contactor controller and control method based on low-voltage capacitor | |
| CN107634669A (en) | The power circuit and its control method of position-sensor-free permagnetic synchronous motor | |
| CN104795276B (en) | The method of supplying power to and circuit of a kind of A.C. contactor | |
| CN103198977A (en) | Contactor coil power supply circuit | |
| CN207460021U (en) | The power circuit of position-sensor-free permanent magnet synchronous motor | |
| CN102223058B (en) | Interlaced on-line isolated double-cuk circuit | |
| CN111130374A (en) | T source inverter with low direct-current link voltage spike | |
| CN214506571U (en) | Contactless high-efficiency power-saving electromagnetic chuck power supply circuit outputting pure direct current | |
| CN214674495U (en) | High-efficiency power-saving electromagnetic chuck power supply circuit outputting pure direct current | |
| CN205564671U (en) | Electric operating mechanism's of circuit breaker power consumption control circuit | |
| CN203398751U (en) | Air breaker controlled by electronic circuit | |
| CN201117544Y (en) | Intelligent control device adopting IGBT device | |
| CN203301357U (en) | Inverter load impedance match circuit structure | |
| CN201663557U (en) | Secondary side power supply control switch | |
| CN202134471U (en) | Electrical network direct drive zero-crossing action single-phase magnetic latching relay | |
| CN201600980U (en) | Novel electromagnetic control module | |
| CN203312212U (en) | Shunt release capable of being electrically powered sustainably | |
| CN202796748U (en) | Energy-saving control circuit of constant magnetic maintaining alternating current contactor | |
| CN102611301A (en) | CT (Current Transducer) power circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |