CN100341090C - Intelligent switch-on controlling module of AC contactor - Google Patents
Intelligent switch-on controlling module of AC contactor Download PDFInfo
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- CN100341090C CN100341090C CNB2005100126015A CN200510012601A CN100341090C CN 100341090 C CN100341090 C CN 100341090C CN B2005100126015 A CNB2005100126015 A CN B2005100126015A CN 200510012601 A CN200510012601 A CN 200510012601A CN 100341090 C CN100341090 C CN 100341090C
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Abstract
The present invention relates to a control circuit of an AC contactor, more specifically an intelligent switch-on control module of an AC contactor. The control module comprises a microprocessor, a DC power supply circuit maintained and attracted by the microprocessor and the AC contactor and an AC contactor startup control circuit `, wherein the AC contactor start-up control circuit forms a dynamic circuit by diode D11, D12 and D17, controlled silicon S1 and S2 and a triode T3. The present invention realizes functions of frame intelligent switch-on of a frame current contactor below 100A, energy-saving operation, large current start-up, small current maintenance, DC operation and microcurrent control by introducing a processing control system under the prerequisites that the electromagnetical structure of the original general AC contactor and electromagnetic parameters are not changed, the use function of the original general AC contactor is not lost, and the use method is not influenced. The present invention leaves out a series of feedback and regulation circuits of current and electromagnetic measurement, and has the advantages of simple structure of a modular circuit, small volume and low cost; thus, the present invention is suitable for the current frame AC contactor below 100A.
Description
Technical field
The present invention relates to the control circuit (module) of A.C. contactor, be specially intelligent switch-on controlling module of AC contactor.
Background technology
The A.C. contactor of enterprise's production at present and market sale, difference according to control voltage, be divided into the different electromagnetic system of two classes: a kind of is that control voltage is the ac electromagnetism system of alternating current, this product is exactly traditional common A.C. contactor product, still accounts for the leading position of sale at present on market.Another kind is that control voltage is galvanic direct solenoid system, and this product is exactly the dc operation A.C. contactor product of newly introducing to the market in recent ten years.At present, international each major company releases the new range A.C. contactor one after another, a common feature of these contactors is on the product of 100A with the upper frame electric current, and its electromagnet generally adopts intelligence control circuit promptly by introducing the microprocessor closed-loop control, to reach the intelligent switch-on operation.With underframe electric current product, if introduce the microprocessor closed-loop control system of same principle, owing to compare with the product body, the contrast that exists volume and price can't realize integrated greatly for 100A.And known intelligent contactor also needs the electromagnetic structure and the technical parameter of the former A.C. contactor of corresponding change when introducing the microprocessor closed-loop control system, and this realizes that with underframe electric current product intellectuality brings difficulty also for 100A.Therefore, still can not see competitive product on the domestic and international market at present.
Summary of the invention
The present invention is directed to 100A with underframe electric current A.C. contactor, if introduce above-mentioned a series of problems that the microprocessor closed-loop control system is brought, provide a kind of at electromagnetic structure that does not change former common A.C. contactor and electromagnetic parameter, do not lose the original product function of use and do not influence under the precondition of original product using method, by introducing micro treatment control system, realize the intelligent switch-on controlling module of AC contactor that 100A keeps with underframe electric current A.C. contactor intelligent switch-on, energy-saving run, big current start, little electric current.And be purpose only with the hardware configuration that this control module is provided.
The present invention adopts following technical scheme to realize: intelligent switch-on controlling module of AC contactor, comprise microprocessor (CPU), and microprocessor and A.C. contactor are kept the DC power-supply circuit and the A.C. contactor start-up control circuit of adhesive; The DC power-supply circuit that microprocessor and A.C. contactor are kept adhesive comprises the power-supply rectifying circuit that is made of diode D1-D4, two ac input ends of power-supply rectifying circuit pass through respectively by resistance R 1, capacitor C 1 and resistance R 2, the current-limiting reactor that capacitor C 2 constitutes is with to exchange control voltage input line end continuous, be connected with filter capacitor C3 between two dc output ends of power-supply rectifying circuit, the dc output end of power-supply rectifying circuit is connected with the voltage stabilizing circuit that comprises triode T1, wherein the collector electrode of triode T1 links to each other with the direct current output cathode of power-supply rectifying circuit, be connected with resistance R 5 between the collector electrode of triode T1 and the base stage, the base stage of triode T1 links to each other with the direct current output negative pole of power-supply rectifying circuit through voltage-stabiliser tube V1, the power supply line end V of the emitter of triode T1 and microprocessor
CC, and by resistance R 13 and sticking input wiring terminal P
1.2Link to each other, be connected with filter capacitor C4 between the direct current output negative pole of the emitter of triode T1 and power-supply rectifying circuit, the direct current output cathode of power-supply rectifying circuit links to each other with module output line terminal A1 through diode D13, module output line terminal A2 links to each other with the direct current output negative pole of power-supply rectifying circuit, be serially connected with resistance R 3, R4, the voltage sampling signal input P of the connected node of resistance R 3 and resistance R 4 and microprocessor between the direct current output both positive and negative polarity of power-supply rectifying circuit
1.3Link to each other; A.C. contactor start-up control circuit comprises two ac input ends and exchanges control voltage input line end and link to each other, the startup rectification circuit that constitutes by diode D5-D8, the positive pole that starts the direct current output of rectification circuit passes through diode D10, thermistor PTC1 links to each other with module output line terminal A1, module output line terminal A2 is through diode D17, controllable silicon S1, controllable silicon S2, diode D12 links to each other with the direct current output negative pole that starts rectification circuit, wherein the control utmost point of controllable silicon S1 is through resistance R 9, diode D14 links to each other with the emitter of triode T1, the control utmost point of controllable silicon S2 links to each other with the collector electrode of triode T3, and the emitter of triode T3 links to each other with the direct current output negative pole of power-supply rectifying circuit through diode D11, and the base stage of triode T3 is through resistance R 10, the control output end P of diode D15 and microprocessor
1.1Link to each other; Start rectification circuit direct current output cathode through diode D9, resistance R 7 links to each other with the base stage of triode T2, the emitter of triode T2 links to each other with the direct current output negative pole of power-supply rectifying circuit, the collector electrode of triode T2 is through the light-emitting diode of optical coupler IC1, resistance R 6, diode D16 links to each other with the emitter of triode T1, the emitter of the phototriode of optical coupler IC1 links to each other with power-supply rectifying circuit direct current output negative pole, the collector electrode of the phototriode of optical coupler IC1 links to each other through the emitter of resistance R 8 with triode T1, simultaneously also with the pulse signal input terminal P of microprocessor
1.4Link to each other.
The present invention realizes that the principle of A.C. contactor intelligent switch-on is: store in microprocessor (CPU) under the different control voltage conditions, best closing time database software, by control closing time and combined floodgate phase place, make the attracting process of A.C. contactor basicly stable and be in optimal dynamic and cooperate.The present invention realizes that the principle of energy-saving run is: the method that adopts dynamic start-up circuit and stable state holding circuit to interact and isolate mutually again, realize the direct current full voltage starting adhesive (will suitably pass through current limliting) of A.C. contactor electromagnet, the little electric current of DC low-voltage is kept adhesive, thereby reaches the purpose of energy-saving run.
Microprocessor and A.C. contactor are kept two inputs and the direct-current control voltage input wiring terminal U of the power-supply rectifying circuit in the DC power-supply circuit of adhesive
SLink to each other, simultaneously, be connected with triode T4 between the direct current output negative pole of module output line terminal A2 and power-supply rectifying circuit, the base stage of triode T4 is through the control output end P of resistance R 11 with microprocessor
1.0Link to each other.Like this, this control module just has two pairs of control voltage input line ends, and a pair of is direct-current control voltage input wiring terminal U
S, another is to being specified interchange control voltage input line end U
eLike this, increase direct-current control voltage input wiring terminal and correspondent control circuits, can make the dc operation of this control module realization A.C. contactor.Under the dc operation form, big down many of the more specified alternating voltage control of the current-limiting reactor value that is made of resistance R 1, capacitor C 1 and resistance R 2, capacitor C 2 respectively in the circuit, the direct current supply that microprocessor and A.C. contactor are kept adhesive is provided by direct-current control voltage.
Controllable silicon S1 is replaceable with triode T5.The control utmost point of may command S1 is corresponding to the base stage of triode T5.Replacement is with triode T5, but circuit operate as normal still.To be that the present invention is the easiest expect and the simplest constructional variant for this.
The present invention is at electromagnetic structure that does not change former common A.C. contactor and electromagnetic parameter, do not lose former common A.C. contactor function of use and do not influence under the precondition of former common A.C. contactor using method, by introducing micro treatment control system, realize 100A with underframe contactor intelligent switch-on, energy-saving run, big current start, little electric current keep, dc operation, little Current Control.The present invention is because in the micro treatment control system of introducing, the feedback and the regulating circuit of a series of electric currents and electromagnetic measurement have been saved, modular circuit is simple in structure, thereby volume and cost are reduced greatly, therefore is suitable for quoting in the following electric current framework of 100A A.C. contactor.
Description of drawings
Fig. 1 is the wiring schematic diagram of a kind of concrete control module of the present invention and A.C. contactor;
Fig. 2 is the circuit theory diagrams of concrete control module shown in Figure 1;
Fig. 3 is the wiring schematic diagram of another kind of concrete control module of the present invention and A.C. contactor;
Fig. 4 is the circuit theory diagrams of concrete control module shown in Figure 3;
Embodiment
Embodiment 1
The described control module of present embodiment (seeing Fig. 1, Fig. 2) has pair of control voltage input line end U
eModule output line terminal A1, A2 link to each other with the solenoid J of A.C. contactor.This control module is applicable to that control voltage and rated voltage are all the A.C. contactor of the AC power of 110V, 220V, 380V, 50/60HZ.
This control module comprises microprocessor (CPU), and microprocessor and A.C. contactor are kept the DC power-supply circuit and the A.C. contactor start-up control circuit of adhesive; The DC power-supply circuit that microprocessor and A.C. contactor are kept adhesive comprises the power-supply rectifying circuit that is made of diode D1-D4, two ac input ends of power-supply rectifying circuit pass through respectively by resistance R 1, capacitor C 1 and resistance R 2, the current-limiting reactor that capacitor C 2 constitutes is with to exchange control voltage input line end continuous, be connected with filter capacitor C3 between two dc output ends of power-supply rectifying circuit, the dc output end of power-supply rectifying circuit is connected with the voltage stabilizing circuit that comprises triode T1, wherein the collector electrode of triode T1 links to each other with the direct current output cathode of power-supply rectifying circuit, be connected with resistance R 5 between the collector electrode of triode T1 and the base stage, the base stage of triode T1 links to each other with the direct current output negative pole of power-supply rectifying circuit through voltage-stabiliser tube V1, the power supply line end V of the emitter of triode T1 and microprocessor
CC, and by resistance R 13 and sticking input wiring terminal P
1.2Link to each other, be connected with filter capacitor C4 between the direct current output negative pole of the emitter of triode T1 and power-supply rectifying circuit, the direct current output cathode of power-supply rectifying circuit links to each other with module output line terminal A1 through diode D13, module output line terminal A2 links to each other with the direct current output negative pole of power-supply rectifying circuit, be serially connected with resistance R 3, R4, the voltage sampling signal input P of the connected node of resistance R 3 and resistance R 4 and microprocessor between the direct current output both positive and negative polarity of power-supply rectifying circuit
1.3Link to each other; A.C. contactor start-up control circuit comprises two ac input ends and exchanges control voltage input line end and link to each other, the startup rectification circuit that constitutes by diode D5-D8, the positive pole that starts the direct current output of rectification circuit passes through diode D10, thermistor PTC1 links to each other with module output line terminal A1, module output line terminal A2 is through diode D17, controllable silicon S1, controllable silicon S2, diode D12 links to each other with the direct current output negative pole that starts rectification circuit, wherein the control utmost point of controllable silicon S1 is through resistance R 9, diode D14 links to each other with the emitter of triode T1, the control utmost point of controllable silicon S2 links to each other with the collector electrode of triode T3, and the emitter of triode T3 links to each other with the direct current output negative pole of power-supply rectifying circuit through diode D11, and the base stage of triode T3 is through resistance R 10, the control output end P of diode D15 and microprocessor
1.1Link to each other; Start rectification circuit direct current output cathode through diode D9, resistance R 7 links to each other with the base stage of triode T2, the emitter of triode T2 links to each other with the direct current output negative pole of power-supply rectifying circuit, the collector electrode of triode T2 is through the light-emitting diode of optical coupler IC1, resistance R 6, diode D16 links to each other with the emitter of triode T1, the emitter of the phototriode of optical coupler IC1 links to each other with power-supply rectifying circuit direct current output negative pole, the collector electrode of the phototriode of optical coupler IC1 links to each other through the emitter of resistance R 8 with triode T1, simultaneously also with the pulse signal input terminal P of microprocessor
1.4Link to each other.
Controllable silicon S1 is replaceable with triode T5.
When the control voltage U
e(for example 380V/50HZ alternating current) is when adding to module controls voltage input line end, alternating voltage is after resistance R 1, capacitor C 1 and R2, two of C2 and series arm step-down, add to the bridge-type power-supply rectifying circuit input end of forming by D1-D4, direct voltage at its output output 15-30V, after capacitor C 3 filtering, one the tunnel holds through diode D13, solenoid A1 to A2, and the negative pole of getting back to this bridge-type power-supply rectifying output forms the loop, keeps pick-up voltage for solenoid provides.The direct voltage of the voltage stabilizing circuit output+5V that another road is formed through triode T1 and resistance R 5, voltage stabilizing didoe V1 once more after the filtering, provides operating voltage V to microprocessor through capacitor C 4
CCWith line end P
1.2" sticking input " voltage.After the supply voltage sampled signal passes through resistance R 3 and R4 dividing potential drop, add to the voltage sampling signal input P of CPU
1.3
Simultaneously, when the control voltage U
eWhen adding to the startup rectification circuit input end of D5-D8 composition, the dc pulse moving voltage of its output forms the loop by base-emitter-base bandgap grading, diode D1 (or diode D4), resistance R 1 and capacitor C 1 and chord road (or resistance R 2 and capacitor C 2 and chord road) of diode D9, resistance R 7, triode T2, at base-emitter-base bandgap grading formation pulsation base current of triode T2.So by diode D16, resistance R 6, there is Rectified alternating current stream to pass through in the collector electrode branch road of the triode T2 that the light-emitting diode of optical coupler IC1 is formed, so the phototriode collector electrode output pulse signal of optical coupler IC1, offers the pulse signal input terminal P of CPU
1.4, and under the acting in conjunction of " the supply voltage sampled signal " of corresponding input interface, " sticking input " signal, its control output end P
1.1Will export one and the corresponding delayed firing voltage of supply voltage at that time, this voltage is by diode D15, resistance R 10 branch roads control triode T3 conducting.When the T3 conducting, voltage stabilizing circuit output+5V voltage passes through D14, resistance R 9, the control utmost point-negative electrode of controllable silicon S1 (or base-emitter-base bandgap grading of triode T5), the second plate of controllable silicon S2 is to control utmost point G, triode T3 collection-emitter-base bandgap grading, diode D11, form closed circuit Control current, so the full voltage dc pulse moving voltage of the startup rectification circuit of being made up of D5-D8 output is through PTC1 thermistor current limliting, A1 to A2 holds by solenoid, diode D17, controllable silicon S1 (or triode T5), bidirectional triode thyristor S2, diode D12 forms the loop, thereby produce big starting attract current, finish contactor starting adhesive action.As the control output end of CPU P
1.1After the starting control voltage time-delay of output finishes, when triode T3 ends, the control electrode current of controllable silicon S1 control electrode current (or base current of triode T5) and S2 is zero, so carrying when the principal current zero passage, ends (or triode T5 ends) controllable silicon S1, therefore controllable silicon S2 also ends, thereby finishes the starting attracting process of the electromagnetic system of CPU control.Starting is according to the supply voltage sampled signal pickup time, selects best pickup time by microprocessor under corresponding software is supported, and starts attracting process at every turn and all originate in the control voltage over zero and also end at zero crossing.So both guaranteed the reliable adhesive of electromagnetic system, reduced the influence of supply voltage and phase place again, helped improving the stability of starting attracting process the starting attracting process.
Embodiment 2
The described control module of present embodiment (seeing Fig. 3, Fig. 4) has two couples of control voltage input line end U
eAnd U
SModule output line terminal A1, A2 link to each other with the solenoid J of A.C. contactor.The control voltage U
SBe direct current (also can exchange) 24V, 36V, 48V, rated voltage Ue is that 110V, 220V, 380V hand over (or straight) stream power supply.This control module can realize the dc operation control of A.C. contactor.
This control module comprises microprocessor (CPU), and microprocessor and A.C. contactor are kept the DC power-supply circuit and the A.C. contactor start-up control circuit of adhesive; The DC power-supply circuit that microprocessor and A.C. contactor are kept adhesive comprises the power-supply rectifying circuit that is made of diode D1-D4, two ac input ends of power-supply rectifying circuit pass through respectively by resistance R 1, capacitor C 1 and resistance R 2, the current-limiting reactor that capacitor C 2 constitutes is with to exchange control voltage input line end continuous, be connected with filter capacitor C3 between two dc output ends of power-supply rectifying circuit, the dc output end of power-supply rectifying circuit is connected with the voltage stabilizing circuit that comprises triode T1, wherein the collector electrode of triode T1 links to each other with the direct current output cathode of power-supply rectifying circuit, be connected with resistance R 5 between the collector electrode of triode T1 and the base stage, the base stage of triode T1 links to each other with the direct current output negative pole of power-supply rectifying circuit through voltage-stabiliser tube V1, the power supply line end V of the emitter of triode T1 and microprocessor
CC, and by resistance R 13 and sticking input wiring terminal P
1.2Link to each other, be connected with filter capacitor C4 between the direct current output negative pole of the emitter of triode T1 and power-supply rectifying circuit, the direct current output cathode of power-supply rectifying circuit links to each other with module output line terminal A1 through diode D13, module output line terminal A2 links to each other with the direct current output negative pole of power-supply rectifying circuit, be serially connected with resistance R 3, R4, the voltage sampling signal input P of the connected node of resistance R 3 and resistance R 4 and microprocessor between the direct current output both positive and negative polarity of power-supply rectifying circuit
1.3Link to each other; A.C. contactor start-up control circuit comprises two ac input ends and exchanges control voltage input line end and link to each other, the startup rectification circuit that constitutes by diode D5-D8, the positive pole that starts the direct current output of rectification circuit passes through diode D10, thermistor PTC1 links to each other with module output line terminal A1, module output line terminal A2 is through diode D17, controllable silicon S1, controllable silicon S2, diode D12 links to each other with the direct current output negative pole that starts rectification circuit, wherein the control utmost point of controllable silicon S1 is through resistance R 9, diode D14 links to each other with the emitter of triode T1, the control utmost point of controllable silicon S2 links to each other with the collector electrode of triode T3, and the emitter of triode T3 links to each other with the direct current output negative pole of power-supply rectifying circuit through diode D11, and the base stage of triode T3 is through resistance R 10, the control output end P of diode D15 and microprocessor
1.1Link to each other; Start rectification circuit direct current output cathode through diode D9, resistance R 7 links to each other with the base stage of triode T2, the emitter of triode T2 links to each other with the direct current output negative pole of power-supply rectifying circuit, the collector electrode of triode T2 is through the light-emitting diode of optical coupler IC1, resistance R 6, diode D16 links to each other with the emitter of triode T1, the emitter of the phototriode of optical coupler IC1 links to each other with power-supply rectifying circuit direct current output negative pole, the collector electrode of the phototriode of optical coupler IC1 links to each other through the emitter of resistance R 8 with triode T1, simultaneously also with the pulse signal input terminal P of microprocessor
1.4Link to each other.
Microprocessor and A.C. contactor are kept two inputs and the direct-current control voltage input wiring terminal U of the power-supply rectifying circuit in the DC power-supply circuit of adhesive
SLink to each other, simultaneously, be connected with triode T4 between the direct current output negative pole of module output line terminal A2 and power-supply rectifying circuit, the base stage of triode T4 is through the control output end P of resistance R 11 with microprocessor
1.0Link to each other.
Controllable silicon S1 is replaced with triode T5.
When control voltage U S adds to module input, the rectification output end output of the power-supply rectifying circuit of forming at D1-D4 and the positive voltage of Us equivalence, through capacitor C 3 filtering, the direct voltage of the voltage stabilizing circuit output+5V that forms through triode T1 and resistance R 5, voltage stabilizing didoe V1, once more after the filtering, provide operating voltage V through capacitor C 4 to microprocessor
CCWith line end P
1.2" sticking input " voltage.After the supply voltage sampled signal passes through resistance R 3 and R4 dividing potential drop simultaneously, add to the voltage sampling signal input P of CPU
1.3At this moment, because Ue inserts the input of the startup rectification circuit of being made up of D5-D8 in advance, the dc pulse moving voltage of its output forms the loop by base-emitter-base bandgap grading, diode D1 (or diode D4), resistance R 1 and capacitor C 1 and chord road (or resistance R 2 and capacitor C 2 and chord road) of diode D9, resistance R 7, triode T2, at base-emitter-base bandgap grading formation pulsation base current of triode T2.So by diode D16, resistance R 6, there is Rectified alternating current stream to pass through in the collector circuit of the triode T2 that the light-emitting diode of optical coupler IC1 is formed, therefore the phototriode collector electrode output pulse signal of optical coupler IC1 offers the pulse signal input terminal P of CPU
1.4, and under the acting in conjunction of " the supply voltage sampled signal " of corresponding input interface, " sticking input " signal, its control output end P
1.0Output adhesive sustaining voltage, this voltage adds to triode T4 base stage by resistance R 11, make the T4 conducting, like this, the positive voltage of the power-supply rectifying circuit output that is made of D1-D4 is held to A2 end, triode T4 collection-emitter-base bandgap grading, diode D1 (or D4) by diode D13, solenoid A1 and is formed the loop, make solenoid at first keep electric current, simultaneously the control output end P of microprocessor by adhesive
1.1Can one of output and the corresponding delayed firing voltage of supply voltage at that time, this voltage is controlled triode T3 conducting by diode D15 resistance R 10 branch roads.When the T3 conducting, voltage stabilizing circuit output+5V voltage is by diode D14, resistance R 9, base-emitter-base bandgap grading of triode T5, the second plate of controllable silicon S2 is to the control utmost point, triode T3 collection-emitter-base bandgap grading, diode D11, form closed circuit Control current, so the full voltage dc pulse moving voltage of the startup rectification circuit of being made up of D5-D8 output is through PTC1 thermistor current limliting, A1 to A2 holds by solenoid, diode D17, collection-emitter-base bandgap grading of triode T5, bidirectional triode thyristor S2, diode D12 forms the loop, thereby produce big starting attract current, finish contactor starting adhesive action.As the control output end of CPU P
1.1After the starting control voltage time-delay of output finished, triode T3 ended, and the base current of triode T5 is zero, then triode T5 end, thereby finish the starting attracting process of the electromagnetic system of CPU control.Starting pickup time is according to the supply voltage sampled signal, under supporting, corresponding software selects best pickup time by microprocessor, and start attracting process at every turn and all originate in zero crossing, so both guaranteed the reliable adhesive of electromagnetic system, reduced the influence of supply voltage and phase place again, helped improving the stability of starting attracting process the starting attracting process.When external control voltage U s disconnected, the contactor solenoid discharged because of dead electricity.
Here need to prove: although at this moment rated voltage Ue is still after resistance R 1, capacitor C 1 and resistance R 2,2 two of capacitor C and series arm step-down, add to the bridge rectifier input of forming by D1-D4, but because the capacity numerical value of C1 and C2 is very little, the numerical value of R1 and R2 is very big, its output voltage can be ignored, therefore, can not impact circuit.
When rated voltage Ue is DC power supply (for example Ue=DC220V), the pulse signal input terminal P of CPU at this moment
1.4Just do not produce " pulse " signal, and a constant d. c. voltage signal.But because the working procedure of CPU embedded software design is to work as P
1.2" sticking input " signal, the P of end
1.3After " the supply voltage sampled signal " of end is normal, as pulse signal input terminal P
1.4There is not the pulse signal input, behind the time-delay 15ms, control output end P
1.0And P
1.1Output delayed firing voltage.Like this, both guarantee the zero passage starting when rated voltage Ue is the 50/60Hz AC power, guaranteed the operate as normal when Ue is DC power supply again.
Claims (3)
1, a kind of intelligent switch-on controlling module of AC contactor comprises microprocessor, and microprocessor and A.C. contactor are kept the DC power-supply circuit and the A.C. contactor start-up control circuit of adhesive; It is characterized by: the DC power-supply circuit that microprocessor and A.C. contactor are kept adhesive comprises the power-supply rectifying circuit that is made of diode D1-D4, two ac input ends of power-supply rectifying circuit pass through respectively by resistance R 1, capacitor C 1 and resistance R 2, the current-limiting reactor that capacitor C 2 constitutes is with to exchange control voltage input line end continuous, be connected with filter capacitor C3 between two dc output ends of power-supply rectifying circuit, the dc output end of power-supply rectifying circuit is connected with the voltage stabilizing circuit that comprises triode T1, wherein the collector electrode of triode T1 links to each other with the direct current output cathode of power-supply rectifying circuit, be connected with resistance R 5 between the collector electrode of triode T1 and the base stage, the base stage of triode T1 links to each other with the direct current output negative pole of power-supply rectifying circuit through voltage-stabiliser tube V1, the power supply line end V of the emitter of triode T1 and microprocessor
CC, and by resistance R 13 and sticking input wiring terminal P
1.2Link to each other, be connected with filter capacitor C4 between the direct current output negative pole of the emitter of triode T1 and power-supply rectifying circuit, the direct current output cathode of power-supply rectifying circuit links to each other with module output line terminal A1 through diode D13, module output line terminal A2 links to each other with the direct current output negative pole of power-supply rectifying circuit, be serially connected with resistance R 3, R4, the voltage sampling signal input P of the connected node of resistance R 3 and resistance R 4 and microprocessor between the direct current output both positive and negative polarity of power-supply rectifying circuit
1.3Link to each other; A.C. contactor start-up control circuit comprises two ac input ends and exchanges control voltage input line end and link to each other, the startup rectification circuit that constitutes by diode D5-D8, the positive pole that starts the direct current output of rectification circuit passes through diode D10, thermistor PTC1 links to each other with module output line terminal A1, module output line terminal A2 is through diode D17, controllable silicon S1, controllable silicon S2, diode D12 links to each other with the direct current output negative pole that starts rectification circuit, wherein the control utmost point of controllable silicon S1 is through resistance R 9, diode D14 links to each other with the emitter of triode T1, the control utmost point of controllable silicon S2 links to each other with the collector electrode of triode T3, and the emitter of triode T3 links to each other with the direct current output negative pole of power-supply rectifying circuit through diode D11, and the base stage of triode T3 is through resistance R 10, the control output end P of diode D15 and microprocessor
1.1Link to each other; Start rectification circuit direct current output cathode through diode D9, resistance R 7 links to each other with the base stage of triode T2, the emitter of triode T2 links to each other with the direct current output negative pole of power-supply rectifying circuit, the collector electrode of triode T2 is through the light-emitting diode of optical coupler IC1, resistance R 6, diode D16 links to each other with the emitter of triode T1, the emitter of the phototriode of optical coupler IC1 links to each other with power-supply rectifying circuit direct current output negative pole, the collector electrode of the phototriode of optical coupler IC1 links to each other through the emitter of resistance R 8 with triode T1, simultaneously also with the pulse signal input terminal P of microprocessor
14Link to each other.
2, intelligent switch-on controlling module of AC contactor as claimed in claim 1 is characterized by: controllable silicon S1 is replaceable with triode T5.
3, intelligent switch-on controlling module of AC contactor as claimed in claim 1 or 2 is characterized by: microprocessor and A.C. contactor are kept two inputs and the direct-current control voltage input wiring terminal U of the power-supply rectifying circuit in the DC power-supply circuit of adhesive
SLink to each other, simultaneously, be connected with triode T4 between the direct current output negative pole of module output line terminal A2 and power-supply rectifying circuit, the base stage of triode T4 is through the control output end P of resistance R 11 with microprocessor
1.0Link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100126015A CN100341090C (en) | 2005-06-09 | 2005-06-09 | Intelligent switch-on controlling module of AC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100126015A CN100341090C (en) | 2005-06-09 | 2005-06-09 | Intelligent switch-on controlling module of AC contactor |
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| CN1710687A CN1710687A (en) | 2005-12-21 |
| CN100341090C true CN100341090C (en) | 2007-10-03 |
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| CNB2005100126015A Expired - Fee Related CN100341090C (en) | 2005-06-09 | 2005-06-09 | Intelligent switch-on controlling module of AC contactor |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100420131C (en) * | 2006-08-03 | 2008-09-17 | 王稳忠 | DC-AC two-use electronic saving module of low-voltage electrical equipment |
| CN101477919B (en) * | 2009-01-23 | 2011-06-08 | 东南大学 | Intelligent control module for permanent magnet contactor |
| CN110138198B (en) * | 2019-04-23 | 2024-04-30 | 浙江德力西电器有限公司 | Alternating current traction electromagnet control circuit based on temperature rise reduction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004186052A (en) * | 2002-12-04 | 2004-07-02 | Mitsubishi Electric Corp | Coil drive circuit of electromagnetic contactor |
| CN2634636Y (en) * | 2003-06-28 | 2004-08-18 | 王稳忠 | DC operated three phase AC contactor control module |
| CN2634635Y (en) * | 2003-06-28 | 2004-08-18 | 王稳忠 | DC operated three phase AC contactor intelligent control module |
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2005
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004186052A (en) * | 2002-12-04 | 2004-07-02 | Mitsubishi Electric Corp | Coil drive circuit of electromagnetic contactor |
| CN2634636Y (en) * | 2003-06-28 | 2004-08-18 | 王稳忠 | DC operated three phase AC contactor control module |
| CN2634635Y (en) * | 2003-06-28 | 2004-08-18 | 王稳忠 | DC operated three phase AC contactor intelligent control module |
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| CN1710687A (en) | 2005-12-21 |
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