CN102842461A - Energy-storing type energy-saving alternating-current contactor - Google Patents
Energy-storing type energy-saving alternating-current contactor Download PDFInfo
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- CN102842461A CN102842461A CN2012102870734A CN201210287073A CN102842461A CN 102842461 A CN102842461 A CN 102842461A CN 2012102870734 A CN2012102870734 A CN 2012102870734A CN 201210287073 A CN201210287073 A CN 201210287073A CN 102842461 A CN102842461 A CN 102842461A
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Abstract
The invention relates to a contactor, in particular to an energy-storing type energy-saving alternating-current contactor comprising an electromagnetic system. The electromagnetic system comprises an iron core and a coil. An output end of a power supply detecting module is connected with an input end of a microprocessor. An output end of the microprocessor is respectively connected with a power supply controller and an energy-storing capacity controller. An output end of the power supply controller is connected with a magnet exciting coil. The energy-storing capacity controller is connected with energy-storing capacity. An output end of the energy-storing capacity controller is connected with the magnet exciting coil. When power is on, the power supply controller controls charging and closing of the magnet exciting coil, the energy-storing capacity controller controls the energy-storing capacity to charge, supplying of the power is stopped after the magnet exciting coil is closed, and closing state is maintained through residual magnetism. When the power is off, the energy-storing capacity carries out demagnetizing treatment to the magnet exciting coil so that purpose of release is achieved. Energy-saving effects are obvious due to the fact that the whole process only consumes little energy.
Description
Technical field
Invention relates to a kind of contactor, especially a kind of energy-storage type energy-saving A.C. contactor.
Background technology
Be meant on contactor (Contactor) narrow sense can frequently close close, carry and cut-off normal current and regulation overload current cut-off and the pass attaches together and puts.It is applied to electric power, distribution and electricity consumption.Contactor is meant that broadly utilizing coil to flow through electric current in the industrial electro produces magnetic field; Make contact closure, to reach the electrical equipment of control load, contactor is by electromagnetic system (moving iron core; Static iron core, solenoid) contact system (normally open contact and normally closed interlock) and arc-control device composition.
Occur at present numerously on the market, omnifarious energy-saving alternating current contactor although energy-saving effect reaches the level of 90-95%, all still drops on national standard (GB21518-2008) secondary energy consumption category.Though bayonet type (magnetic maintenance), magneto, energy-saving effect is better, still has fatal shortcoming, can not discharge during outage, control loop can not switch on for a long time, so environment for use is very limited.
Because the principle of contactor is that coil current can produce magnetic field after the contactor coil energising; The magnetic field that produces makes iron core produce the moving iron core of electromagnetic attraction attraction, and drives the contact action of A.C. contactor, and normally-closed contact breaks off; Normally opened contact is closed, and both link; When coil blackout, electromagnetic attraction disappears, and armature discharges under the effect of retracting spring, and the contact is restored; Normally opened contact breaks off, and normally-closed contact is closed, but there is a problem in common energy-saving contactor; Be exactly after the iron core magnetization, keep the magnetic of iron core, just need continue to provide electric current, energy-saving effect can weaken a lot; And the mode that adopts magnetic to keep need add power supply during releasing contact, in case outage just can't discharge, brings accident potential for the operation of contactor.
Summary of the invention
The purpose of invention is, the energy storage type A.C. contactor of a kind of safety and stability, good energy-conserving effect is provided.
Invention solves the technical scheme that its technical problem adopted: a kind of energy storage type A.C. contactor; Comprise electromagnetic system; Electromagnetic system comprises iron core, coil, also comprises control system, power supply detection module, storage capacitor, and described coil is a magnet exciting coil; Control system comprises microcontroller, power-supply controller of electric, storage capacitor controller; The output of power supply detection module is connected with the input of microcontroller, and the output of microcontroller is connected with power-supply controller of electric, storage capacitor controller respectively, and the output of power-supply controller of electric is connected with magnet exciting coil; The storage capacitor controller is connected with storage capacitor, and the output of storage capacitor controller is connected with magnet exciting coil.
Further being set to of invention: power-supply controller of electric comprises the attraction circuit of control magnet exciting coil adhesive, and attraction circuit is connected with diode by controllable silicon and constituted, and the positive pole of diode is connected with controllable silicon, and the negative pole of diode is connected with magnet exciting coil.
Further being set to of invention: the energy storage controller comprises the release circuit that the control magnet exciting coil discharges, and discharges circuit and is made up of metal-oxide-semiconductor, diode, resistance series connection, and diode cathode is connected with metal-oxide-semiconductor, storage capacitor respectively, and diode cathode is connected with resistance.
Further being set to of invention: the power supply detection module comprises signal sample circuit, and sample circuit comprises diode, resistance, voltage-stabiliser tube, electric capacity, and the parallel circuits that voltage-stabiliser tube, electric capacity parallel connection constitute is connected with resistance, diode.
Said structure adopts the intelligence control system combination, and the power supply detection module detects the situation of power supply, is path or opens circuit, and the power supply detection module transfers to microcontroller with detection signal; If path, microprocessor controls transfers to power-supply controller of electric with signal, and power-supply controller of electric charges to magnet exciting coil, thus the magnetization iron core; Stopping power supply after the adhesive in the adhesive contact, utilizes the remanent magnetism of iron core to keep attracting state, and power supply is given storage capacitor C10 charging after the R9.D6 rectification simultaneously; The power-supply controller of electric outage stops charging after the adhesive after storage capacitor is full of, in case the power supply detection module detects power-off signal, microcontroller transfers to the storage capacitor controller with signal; The discharge of storage capacitor controller control storage capacitor is carried out reverse charging to magnet exciting coil, produces the opposing magnetic field, utilizes the opposing magnetic field that iron core is carried out demagnetization and handles; Thereby releasing contact, owing in whole process, only need in adhesive, fill once electricity, remaining time all need not charging; Avoid power consumption, therefore can reach fine energy-saving effect, the control yarn system of this employing embedded microcontroller; Carried out by software control, the de-stabilising effect of having avoided iron core to carry out for contactor can guarantee that contactor in time discharges and adhesive; Guarantee that iron core magnetization and degaussing process are stable, during the contactor operation, reliable and stable.
Description of drawings
Fig. 1 is the theory diagram of present embodiment;
Fig. 2 is the physical circuit figure of present embodiment.
Embodiment
Can know that with reference to figure 1 output of power supply detection module is connected with the input of microcontroller, the output of microcontroller is connected with power-supply controller of electric, storage capacitor controller respectively; The output of power-supply controller of electric is connected with magnet exciting coil, and the storage capacitor controller is connected with storage capacitor, and the output of storage capacitor controller is connected with magnet exciting coil; When the power controller controls magnet exciting coil charged adhesive when energising, the charging of storage capacitor controller control storage capacitor was after the magnet exciting coil adhesive; Stop power supply, lean on remanent magnetism to keep attracting state, when outage; Storage capacitor carries out demagnetization to magnet exciting coil to be handled, thereby reaches the purpose of release, in the whole process; Only consume a little electric energy, energy-saving effect is very obvious.
Can know that in conjunction with Fig. 2 the power supply input is through fuse FU, input connects capacitor C 1 and piezo-resistance R11, and process is divided into two-way by inductance L 1 and the common mode filtering circuit that capacitor C 3, C4 form:
One the tunnel is power unit, and the reduction voltage circuit of circuit through being made up of resistance R 2 and capacitor C 2 is again by rectifier bridge D1 rectification; The output direct current is through capacitor C 5, C6 filtering, and by voltage-stabiliser tube D2 voltage stabilizing, the output plus terminal power supply is via resistance R 3 again; With capacitor C 7, C8 filtering, supply with microcontroller U1 then.1 pin of positive termination microcontroller U1, negative terminal connects 8 pin.
Another road is the signal sampling part; Circuit is through diode D3 halfwave rectifier; Filtering, the amplitude limiter circuit formed by resistance R 4, voltage-stabiliser tube D4 and capacitor C 9 again; Arrive the base stage of triode Q1 again through resistance R 5, the Q1 emitter over the ground, 3 pin that Q1 controls microcontroller U1 through the input sample signal output level just change.The signal sampling part is as the power supply detection module.
1 pin of microcontroller U1 connects positive supply, 8 pin ground connection.3 pin of microcontroller U1,2 pin and 7 pin are connected pull-up resistor R6, R14 and R7 1 pin positive supply to microcontroller U1 respectively.Microcontroller U1 detects the sampled signal of its 3 pin input, and 2 pin and 7 pin are exported the control attraction circuit respectively and discharged circuit.
Attraction circuit is composed in series via controllable silicon Q2, diode D5.Microcontroller U1 receives that power supply opens signal, and its 7 pin output low level is effective, and it is open-minded to control controllable silicon Q2 through optocoupler U2 and resistance R 10, makes the A.C. contactor adhesive.Treat that the 7 pin output switching activities of microcontroller U1 are that high level turn-offs controllable silicon Q2 after the A.C. contactor adhesive.R8 connects the U2 anode and is connected with positive supply, and R8 plays metering function, and diode D5 negative terminal connects magnet exciting coil.
Discharge circuit and be made up of metal-oxide-semiconductor Q3, diode D6, resistance R 9, diode D6 positive pole is connected with metal-oxide-semiconductor Q3, storage capacitor C10 respectively, and diode D6 negative pole is connected with resistance R 9.The G of Q3, S pin parallel resistance R11 and resistance R 12 constitute bleeder circuit when optocoupler controllable silicon U3 opens.In the time of the adhesive of power supply input AC contactor, power supply connects diode D6 negative terminal through resistance R 9 and gives capacitor C 10 charging energy storage.R13 connects the U3 anode and is connected with positive supply, and R13 plays metering function.When microcontroller U1 received the power remove signal, its 2 pin output low level was effective, and open-minded through optocoupler U3 and resistance R 12 control metal-oxide-semiconductor Q3 through R13, storage capacitor C10 discharges to the magnet exciting coil demagnetization, and A.C. contactor is discharged.
Claims (5)
1. an energy-storage type energy-saving A.C. contactor comprises electromagnetic system, and electromagnetic system comprises iron core, coil; It is characterized in that: also comprise control system, power supply detection module, storage capacitor; Described coil is a magnet exciting coil, and control system comprises microcontroller, power-supply controller of electric, storage capacitor controller, and the output of power supply detection module is connected with the input of microcontroller; The output of microcontroller is connected with power-supply controller of electric, storage capacitor controller respectively; The output of power-supply controller of electric is connected with magnet exciting coil, and the storage capacitor controller is connected with storage capacitor, and the output of storage capacitor controller is connected with magnet exciting coil.
2. according to the described energy-storage type energy-saving A.C. contactor of claim 1; It is characterized in that: power-supply controller of electric comprises the attraction circuit of control magnet exciting coil adhesive; Attraction circuit is connected with diode by controllable silicon and is constituted; The positive pole of diode is connected with controllable silicon, and the negative pole of diode is connected with magnet exciting coil.
3. according to claim 1 or 2 described energy-storage type energy-saving A.C. contactors; It is characterized in that: the energy storage controller comprises the release circuit that the control magnet exciting coil discharges; Discharging circuit is made up of metal-oxide-semiconductor, diode, resistance series connection; Diode cathode is connected with metal-oxide-semiconductor, storage capacitor respectively, and diode cathode is connected with resistance.
4. according to claim 1 or 2 described energy-storage type energy-saving A.C. contactors; It is characterized in that: the power supply detection module comprises signal sample circuit; Sample circuit comprises diode, resistance, voltage-stabiliser tube, electric capacity, and the parallel circuits that voltage-stabiliser tube, electric capacity parallel connection constitute is connected with resistance, diode.
5. according to the described energy-storage type energy-saving A.C. contactor of claim 3; It is characterized in that: the power supply detection module comprises signal sample circuit; Sample circuit comprises diode, resistance, voltage-stabiliser tube, electric capacity, and the parallel circuits that voltage-stabiliser tube, electric capacity parallel connection constitute is connected with resistance, diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102870734A CN102842461A (en) | 2012-08-13 | 2012-08-13 | Energy-storing type energy-saving alternating-current contactor |
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| CN2012102870734A CN102842461A (en) | 2012-08-13 | 2012-08-13 | Energy-storing type energy-saving alternating-current contactor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106575561A (en) * | 2014-08-25 | 2017-04-19 | 博格华纳公司 | Latching solenoid which utilizes residual magnetism for the latch and a capacitor which is discharged to degauss and release the latch |
| CN106888533A (en) * | 2017-02-28 | 2017-06-23 | 苏州合欣美电子科技有限公司 | A kind of corridor energy-saving illuminator |
| CN106922064A (en) * | 2017-02-28 | 2017-07-04 | 苏州合欣美电子科技有限公司 | A kind of underground garage energy efficient lighting system |
| CN106922063A (en) * | 2017-02-28 | 2017-07-04 | 苏州合欣美电子科技有限公司 | It is a kind of based on solar powered corridor energy-saving illuminator |
| CN106937461A (en) * | 2017-02-28 | 2017-07-07 | 苏州合欣美电子科技有限公司 | A kind of corridor energy-saving illuminator based on step price |
| CN106954319A (en) * | 2017-02-28 | 2017-07-14 | 苏州合欣美电子科技有限公司 | It is a kind of based on solar powered underground garage energy efficient lighting system |
| CN113611572A (en) * | 2021-10-08 | 2021-11-05 | 南京全宁电器有限公司 | Energy-saving control method of contactor |
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| JPS5763739A (en) * | 1980-10-06 | 1982-04-17 | Fujitsu Ltd | Relay driving circuit |
| CN101477919A (en) * | 2009-01-23 | 2009-07-08 | 东南大学 | Intelligent control module for permanent magnet contactor |
| CN202695293U (en) * | 2012-08-13 | 2013-01-23 | 华通机电股份有限公司 | Energy storage type energy-saving ac contactor |
-
2012
- 2012-08-13 CN CN2012102870734A patent/CN102842461A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5763739A (en) * | 1980-10-06 | 1982-04-17 | Fujitsu Ltd | Relay driving circuit |
| CN101477919A (en) * | 2009-01-23 | 2009-07-08 | 东南大学 | Intelligent control module for permanent magnet contactor |
| CN202695293U (en) * | 2012-08-13 | 2013-01-23 | 华通机电股份有限公司 | Energy storage type energy-saving ac contactor |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106575561A (en) * | 2014-08-25 | 2017-04-19 | 博格华纳公司 | Latching solenoid which utilizes residual magnetism for the latch and a capacitor which is discharged to degauss and release the latch |
| CN106888533A (en) * | 2017-02-28 | 2017-06-23 | 苏州合欣美电子科技有限公司 | A kind of corridor energy-saving illuminator |
| CN106922064A (en) * | 2017-02-28 | 2017-07-04 | 苏州合欣美电子科技有限公司 | A kind of underground garage energy efficient lighting system |
| CN106922063A (en) * | 2017-02-28 | 2017-07-04 | 苏州合欣美电子科技有限公司 | It is a kind of based on solar powered corridor energy-saving illuminator |
| CN106937461A (en) * | 2017-02-28 | 2017-07-07 | 苏州合欣美电子科技有限公司 | A kind of corridor energy-saving illuminator based on step price |
| CN106954319A (en) * | 2017-02-28 | 2017-07-14 | 苏州合欣美电子科技有限公司 | It is a kind of based on solar powered underground garage energy efficient lighting system |
| CN113611572A (en) * | 2021-10-08 | 2021-11-05 | 南京全宁电器有限公司 | Energy-saving control method of contactor |
| WO2023056777A1 (en) * | 2021-10-08 | 2023-04-13 | 南京全宁电器有限公司 | Energy-saving control method for contactor |
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Application publication date: 20121226 |