CN203421263U - Driving circuit of self-hold electromagnetic valve - Google Patents
Driving circuit of self-hold electromagnetic valve Download PDFInfo
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- CN203421263U CN203421263U CN201320469004.5U CN201320469004U CN203421263U CN 203421263 U CN203421263 U CN 203421263U CN 201320469004 U CN201320469004 U CN 201320469004U CN 203421263 U CN203421263 U CN 203421263U
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Abstract
The utility model provides a driving circuit of a self-hold electromagnetic valve, and relates to an electromagnetic control circuit. The driving circuit mainly comprises a commutating and voltage-stabilizing circuit, a signal input circuit, an inching switching circuit a, a driving circuit a, an inching switching circuit b and a driving circuit b, wherein the commutating and voltage-stabilizing circuit is composed of a bridge rectifier circuit, a filter capacitor and a three-terminal voltage-stabilizing block, the signal input circuit is composed of a NOT gate a, a NOT gate b and a NOT gate d, the inching switching circuit a is composed of a charge resistor a, a time delay capacitor a, a NOT gate c and an AND gate a, the driving circuit a is composed of a triode a, a clamping diode a and a relay a, the inching switching circuit b comprises a charging resistor b, a time delay capacitor b, a NOT gate e and an AND gate b, and the driving circuit b is composed of a triode b, a clamping diode b and a relay b. According to the self-hold electromagnetic valve, an electromagnetic coil is instantly powered on only when the self-hold electromagnetic valve is opened and closed, electricity is saved, the service life of the electromagnetic valve is prolonged, and the circuit has the advantages of being simple in structure, reliable in operation and long in service life.
Description
Technical field
The utility model relates to a kind of electronic circuit, specially refers to a kind of solenoid valve control circuit.
Background technique
Solenoid valve is controlled the execution utensil of flowing medium as automation, be widely used in household electrical appliances, weaving, light industry, urban construction industry.Solenoid valve is that the iron core in being sealed in magnetic conduction sleeve pipe completes valve opening action with electromagnetic force, does not have motive sealing, so can avoid leaking outside, therefore, solenoid valve has and uses safe feature, is particularly useful for the medium of corrosivity, poisonous or high low temperature.
Self-holding electromagnetic valve is exactly only to need moment energising to complete valve switch action, and valve element position does not need electricity to keep.Its advantage is energy saving, and electromagnetic coil do not have temperature rise, thereby makes the life-span of coil long, in high low temperature, the occasion such as explosion-proof, has higher-security.Self-holding electromagnetic valve needs the drive circuit of supporting a kind of moment energising when opening and closing to realize object energy-conservation and the extension coil life-span.
Summary of the invention
The purpose of this utility model be to design that a kind of circuit structure is simple, the drive circuit of a kind of self-holding electromagnetic valve of reliable operation, long service life, coordinate self-holding electromagnetic valve only in the moment of opening valve and throttle down, electromagnetic coil to be switched on, realize economize on electricity and extend solenoid valve working life, meet people's live and work needs.
The drive circuit of a kind of self-holding electromagnetic valve of the present utility model, is characterized in that main circuit will be by regulator rectifier circuit, signal input circuit, inching switch circuit a, drive circuit a, inching switch circuit b and drive circuit b form, and wherein, regulator rectifier circuit is by power supply phase line input end (L), zero-power line input end (N), bridge rectifier (VD1-VD4), filter capacitor a(C1), quenching resistor (R2), filter capacitor b(C2), three-terminal regulator block (IC1) and filter capacitor c(C3) form, signal input circuit is by switching signal input end (X), not gate a(IC2), not gate b(IC3) and not gate d(IC6) form, inching switch circuit a is by charging resistor a(R4), delay capacitor a(C4), not gate c(IC4) and with door a(IC5) form, drive circuit a is by current-limiting resistance a(R5), triode a(VT1), clamp diode a(VD6), relay a and drive output a(Y1) form, inching switch circuit b is by charging resistor b(R7), delay capacitor b(C5), not gate e(IC7) and with door b(IC8) form, drive circuit b is by current-limiting resistance b(R8), triode b(VT2), clamp diode b(VD8), relay b and drive output b(Y2) form, power supply phase line input end (L) and zero-power line input end (N) are connected to two ac input ends of bridge rectifier (VD1-VD4), the positive pole of bridge rectifier (VD1-VD4) is connected to filter capacitor a(C1) positive pole and the 1st pin of quenching resistor (R2), the 2nd pin of quenching resistor (R2) is connected to filter capacitor b(C2) positive pole and the input end of three-terminal regulator block (IC1), the output terminal of three-terminal regulator block (IC1) is connected to filter capacitor c(C3) positive pole, the negative pole of bridge rectifier (VD1-VD4), filter capacitor a(C1) negative pole, filter capacitor b(C2) negative pole, the grounding end of three-terminal regulator block (IC1) and filter capacitor c(C3) negative pole be connected to ground wire, bridge rectifier (VD1-VD4) positive pole and filter capacitor a(C1) anodal tie point formation driving power (V0), the output terminal of three-terminal regulator block (IC1) and filter capacitor b(C2) anodal tie point form the positive pole (V+) of working power, switching signal input end (X) is connected to not gate a(IC2) input end and not gate d(IC6) input end, not gate a(IC2) output terminal is connected to not gate b(IC3) input end, not gate b(IC3) output terminal is connected to and door a(IC5) the 1st input end and charging resistor a(R4) the 1st pin, charging resistor a(R4) the 2nd pin is connected to delay capacitor a(C4) positive pole and not gate c(IC4) input end, delay capacitor a(C4) negative pole is connected to ground wire, not gate c(IC4) output terminal is connected to and door a(IC5) the 2nd input end, with door a(IC5) output terminal be connected to current-limiting resistance a(R5) the 1st pin, current-limiting resistance a(R5) the 2nd pin is connected to triode a(VT1) base stage, triode a(VT1) emitter is connected to ground wire, triode a(VT1) collector electrode is connected to clamp diode a(VD6) anode and the 2nd end of the coil (K1) of relay a, the 1st end of the coil of negative electrode clamp diode a(VD6) and relay a (K1) is connected to the positive pole (V+) of working power, the break contact of relay a switch (K1 ') is connected to ground wire, the moving together contact of relay a switch (K1 ') is connected to driving power (V0), the movable contact of relay a switch (K1 ') is connected to drive output a(Y1), not gate d(IC6) output terminal is connected to charging resistor b(R7) the 1st pin and with door b(IC8) the 1st input end, charging resistor b(R7) the 2nd pin is connected to delay capacitor b(C5) positive pole and not gate e(IC7) input end, delay capacitor b(C5) negative pole is connected to ground wire, not gate e(IC7) output terminal is connected to and door b(IC8) the 2nd input end, with door b(IC8) output terminal be connected to current-limiting resistance b(R8) the 1st pin, current-limiting resistance b(R8) the 2nd pin is connected to triode b(VT2) base stage, triode b(VT2) emitter is connected to ground wire, triode b(VT2) collector electrode is connected to clamp diode b(VD8) anode and coil (K2) the 2nd end of relay b, clamp diode b(VD8) coil of negative electrode and relay b (K2) the 1st end is connected to the positive pole (V+) of working power, the break contact of relay b switch (K2 ') is connected to ground wire, the moving together contact of relay b switch (K2 ') is connected to driving power (V0), the movable contact of relay b switch (K2 ') is connected to drive output b(Y2).
In the utility model, in inching switch circuit a, have discharge diode a(VD5) and discharge resistance a(R3), discharge diode a(VD5) anodic bonding is to delay capacitor a(C4) positive pole, discharge diode a(VD5) negative electrode is connected to discharge resistance a(R3) the 2nd pin, discharge resistance a(R3) the 1st pin be connected to not gate b(IC3) output terminal; In inching switch circuit b, have discharge diode b(VD7) and discharge resistance b(R6), discharge diode b(VD7) anodic bonding is to delay capacitor b(C5) positive pole, discharge diode b(VD7) negative electrode is connected to discharge resistance b(R6) the 2nd pin, discharge resistance b(R6) the 1st pin be connected to not gate d(IC6) output terminal; At not gate a(IC2) input end and not gate d(IC6) input end and ground wire between be connected with and be close to road resistance (R2).
In the utility model, it is characterized in that not gate a(IC2), not gate b(IC3), not gate c(IC4), not gate d(IC6) and not gate e(IC7) share a digital integrated electronic circuit, with door a(IC5) and with door b(IC8) share a digital integrated electronic circuit, the power end of digital integrated electronic circuit is connected to the positive pole (V+) of working power, and the ground end of digital integrated electronic circuit is connected to ground wire.During concrete enforcement, not gate a(IC2), not gate b(IC3), not gate c(IC4), not gate d(IC6) and not gate e(IC7) share the hex inverter cmos digital intergrated circuit with scmitt trigger circuit of CC40106 model, use wherein 5 groups, the input end of unnecessary 1 group of not gate is connected to ground wire; With door a(IC5) and with door b(IC8) share 42 inputs and a door cmos digital intergrated circuit of a CC4081 model, use wherein two groups, unnecessary 2 groups with input end be connected to ground wire; The input resistance of cmos digital intergrated circuit is high, micro power consumption, and there is wider supply voltage operating range, the absolute value of voltage noise tolerance limit increases with the increase of supply voltage, thus the strong anti-interference performance of circuit, therefore, cmos digital intergrated circuit has that power consumption is little, reliable operation, non-damageable feature, and the peripheral cell of use is few, make the simple in structure of circuit; In like manner, the utility model is usingd cmos digital intergrated circuit as agent structure, has equally that circuit structure is simple, a feature of reliable operation and long service life.
The utility model is arranged between control apparatus and self-holding electromagnetic valve and applies, and when needs are opened self-holding electromagnetic valve, control apparatus is carried high level signal to the switching signal input end (X) of drive circuit; When needs are closed self-holding electromagnetic valve, control apparatus is carried low level signal to the switching signal input end (X) of drive circuit, and control apparatus does not have signal to flow to the switching signal input end (X) of drive circuit.The utility model makes self-holding electromagnetic valve moment when opening the and only moment when closing switches on to electromagnetic coil only, and after self-holding electromagnetic valve is opened and after closing to electromagnetic coil auto-breaking, with a flowing mode, open solenoid valve and with a flowing mode shut electromagnetic valve, after electromagnetic coil power-off, by the magnetic force of permanent magnet, kept the state that opens or closes of spool.In the utility model, drive output a(Y1) to the electromagnetic coil of self-holding electromagnetic valve, carry the driving current of forward, solenoid valve is opened; Drive output b(Y2) to the electromagnetic coil of self-holding electromagnetic valve, carry reverse driving current, make closed electromagnetic valve.Working principle of the present utility model is: when control apparatus has the high level signal of opening solenoid valve to be input to switching signal input end (X), not gate a(IC2) output terminal and not gate d(IC6) output terminal be converted to low level simultaneously, not gate d(IC6) low level of output terminal makes and door b(IC8) output terminal be locked as low level, triode b(VT2) remain cut-off, do not make the driving current of closed electromagnetic valve from drive output b(Y2) output, not gate a(IC2) low level of output terminal makes not gate b(IC3) output terminal be converted to high level, high level is input to and door a(IC5) the 1st input end and by charging resistor a(R4) to delay capacitor a(C4) charge, at delay capacitor a(C4) on voltage while not reaching 2/3 working power voltage, not gate c(IC4) output terminal is high level, high level is input to and door a(IC5) the 2nd input end, with door a(IC5) 2 input ends while being simultaneously high level, with door a(IC5) output terminal be high level, high level is input to triode a(VT1) base stage, make triode a(VT1) collector electrode and emitter conducting, make coil (K1) energising of relay a, the moving together contact of relay a switch (K1 ') is closed, break contact disconnects, make drive output a(Y1) to the electromagnetic coil of solenoid valve, carry the driving current of forward, solenoid valve is opened, after solenoid valve is opened, until as delay capacitor a(C4) on voltage while reaching 2/3 working power voltage, not gate c(IC4) output terminal is converted to low level, with door a(IC5) the 2nd input end be low level, make and door a(IC5) output terminal be converted to low level, make triode a(VT1) cut-off, the coil of relay a (K1) dead electricity, the moving together contact of relay a switch (K1 ') is disconnected, break contact is closed, make the electromagnetic coil power-off of solenoid valve, the spool of solenoid valve remains on open mode by the magnetic force of permanent magnet, when the signal of not opening solenoid valve when control apparatus is input to switching signal input end (X), not gate a(IC2) input end and not gate d(IC6) input end be low level, not gate a(IC2) output terminal and not gate d(IC6) output terminal be high level simultaneously, not gate b(IC3) output terminal is converted to low level, make and door a(IC5) the 1st input end be low level, simultaneously, delay capacitor a(C4) by discharge diode a(VD5) and discharge resistance a(R3) to not gate b(IC3) output terminal carry out repid discharge, make not gate c(IC4) output terminal be converted to high level, not gate c(IC4) high level of output terminal is input to and door a(IC5) the 2nd input end, for opening solenoid valve next time, await orders, at this moment, not gate d(IC6) output terminal has been converted to high level, high level is input to and door b(IC8) the 1st input end and by charging resistor b(R7) to delay capacitor b(C5) charge, at delay capacitor b(C5) on voltage while not reaching 2/3 working power voltage, not gate e(IC7) output terminal is high level, high level is input to and door b(IC8) the 2nd input end, with door b(IC8) 2 input ends while being simultaneously high level, with door b(IC8) output terminal be high level, make triode b(VT2) collector electrode and emitter conducting, the coil of relay b (K2) energising, make the moving together contact of relay b switch (K2 ') closed, break contact disconnects, make drive output b(Y2) to the electromagnetic coil of solenoid valve, carry reverse driving current, make closed electromagnetic valve, after closed electromagnetic valve, until delay capacitor b(C5) on voltage while reaching 2/3 working power voltage, not gate e(IC7) output terminal is converted to low level, with door b(IC8) the 2nd input end be low level, make and door b(IC8) output terminal be converted to low level, make triode b(VT2) cut-off, the coil of relay b (K2) dead electricity, the moving together contact of relay b switch (K2 ') is disconnected, break contact is closed, make the electromagnetic coil power-off of solenoid valve, the spool of solenoid valve remains on closed condition by the magnetic force of permanent magnet.In the utility model, as charging resistor a(R4) resistance be 640-960k Ω, delay capacitor a(C4) when the 4.7uF, be 2-3 second electromagnetic coil current"on"time that solenoid valve is opened crawl; As charging resistor b(R7) resistance be 640-960k Ω, delay capacitor b(C5) when the 4.7uF, be 2-3 second electromagnetic coil current"on"time of closed electromagnetic valve crawl; As discharge resistance a(R3) and discharge resistance b(R6) resistance while being 160k Ω, delay capacitor a(C4) and delay capacitor b(C5) discharge time be about 0.5 second.
The beneficial effects of the utility model are: the drive circuit of a kind of self-holding electromagnetic valve of design, coordinate self-holding electromagnetic valve at the drive circuit of opening valve and throttle down moment energising, realize economize on electricity and extend solenoid valve working life, meet people's live and work needs.The utlity model has that circuit structure is simple, reliable operation and long service life feature.
Accompanying drawing explanation
Accompanying drawing 1 is the skeleton diagram of the utility model circuit.
Accompanying drawing 2 is circuit diagram of the present utility model.
In figure: R1. quenching resistor, R2.Bang road resistance, R3. discharge resistance a, R4. charging resistor a, R5. current-limiting resistance a, R6. discharge resistance b, R7. charging resistor b, R8. current-limiting resistance b, C1. filter capacitor a, C2. filter capacitor b, C3. filter capacitor c, C4. delay capacitor a, C5. delay capacitor b, VD1-VD4. bridge rectifier, VD5. discharge diode a, VD6. clamp diode a, VD7. discharge diode b, VD8. clamp diode b, IC1. three-terminal regulator block, IC2. not gate a, IC3. not gate b, IC4. not gate c, IC5. with door a, IC6. not gate d, IC7. not gate e, IC8. with door b, VT1. triode a, VT2. triode b, K1. the coil of relay a, K1 '. the switch of relay a, K2. the coil of relay b, K2 '. the switch of relay b, L. power supply phase line input end, N. zero-power line input end, X. switching signal input end, Y1. drive output a, Y2. drive output b, V0. driving power, V+. the positive pole of working power, Vcc. the power end of intergrated circuit.
Embodiment
Embodiment's accompanying drawing 1, in embodiment shown in 2, the drive circuit of self-holding electromagnetic valve is mainly by regulator rectifier circuit, signal input circuit, inching switch circuit a, drive circuit a, inching switch circuit b and drive circuit b form, and wherein, regulator rectifier circuit is by power supply phase line input end (L), zero-power line input end (N), bridge rectifier (VD1-VD4), filter capacitor a(C1), quenching resistor (R2), filter capacitor b(C2), three-terminal regulator block (IC1) and filter capacitor c(C3) form, signal input circuit is by switching signal input end (X), not gate a(IC2), not gate b(IC3) and not gate d(IC6) form, inching switch circuit a is by charging resistor a(R4), delay capacitor a(C4), discharge diode a(VD5), discharge resistance a(R3), not gate c(IC4) and with door a(IC5) form, drive circuit a is by current-limiting resistance a(R5), triode a(VT1), clamp diode a(VD6), relay a and drive output a(Y1) form, inching switch circuit b is by charging resistor b(R7), delay capacitor b(C5), discharge diode b(VD7), discharge resistance b(R6), not gate e(IC7) and with door b(IC8) form, drive circuit b is by current-limiting resistance b(R8), triode b(VT2), clamp diode b(VD8), relay b and drive output b(Y2) form, power supply phase line input end (L) and zero-power line input end (N) are connected to two ac input ends of bridge rectifier (VD1-VD4), the positive pole of bridge rectifier (VD1-VD4) is connected to filter capacitor a(C1) positive pole and the 1st pin of quenching resistor (R2), the 2nd pin of quenching resistor (R2) is connected to filter capacitor b(C2) positive pole and the input end of three-terminal regulator block (IC1), the output terminal of three-terminal regulator block (IC1) is connected to filter capacitor c(C3) positive pole, the negative pole of bridge rectifier (VD1-VD4), filter capacitor a(C1) negative pole, filter capacitor b(C2) negative pole, the grounding end of three-terminal regulator block (IC1) and filter capacitor c(C3) negative pole be connected to ground wire, bridge rectifier (VD1-VD4) positive pole and filter capacitor a(C1) anodal tie point formation driving power (V0), the output terminal of three-terminal regulator block (IC1) and filter capacitor b(C2) anodal tie point form the positive pole (V+) of working power, switching signal input end (X) is connected to not gate a(IC2) input end, the 1st pin of input end He Bang road resistance (R2) not gate d(IC6), the 2nd pin that is close to road resistance (R2) is connected to ground wire, not gate a(IC2) output terminal is connected to not gate b(IC3) input end, not gate b(IC3) output terminal is connected to and door a(IC5) the 1st input end and charging resistor a(R4) the 1st pin, charging resistor a(R4) the 2nd pin is connected to delay capacitor a(C4) positive pole, discharge diode a(VD5) anode and not gate c(IC4) input end, delay capacitor a(C4) negative pole is connected to ground wire, discharge diode a(VD5) negative electrode is connected to discharge resistance a(R3) the 2nd pin, discharge resistance a(R3) the 1st pin is connected to not gate b(IC3) output terminal, not gate c(IC4) output terminal is connected to and door a(IC5) the 2nd input end, with door a(IC5) output terminal be connected to current-limiting resistance a(R5) the 1st pin, current-limiting resistance a(R5) the 2nd pin is connected to triode a(VT1) base stage, triode a(VT1) emitter is connected to ground wire, triode a(VT1) collector electrode is connected to clamp diode a(VD6) anode and the 2nd end of the coil (K1) of relay a, the 1st end of the coil of negative electrode clamp diode a(VD6) and relay a (K1) is connected to the positive pole (V+) of working power, the break contact of relay a switch (K1 ') is connected to ground wire, the moving together contact of relay a switch (K1 ') is connected to driving power (V0), the movable contact of relay a switch (K1 ') is connected to drive output a(Y1), not gate d(IC6) output terminal is connected to charging resistor b(R7) the 1st pin and with door b(IC8) the 1st input end, charging resistor b(R7) the 2nd pin is connected to delay capacitor b(C5) positive pole, discharge diode b(VD7) anode and not gate e(IC7) input end, delay capacitor b(C5) negative pole is connected to ground wire, discharge diode b(VD7) negative electrode is connected to discharge resistance b(R6) the 2nd pin, discharge resistance b(R6) the 1st pin is connected to not gate d(IC6) output terminal, not gate e(IC7) output terminal is connected to and door b(IC8) the 2nd input end, with door b(IC8) output terminal be connected to current-limiting resistance b(R8) the 1st pin, current-limiting resistance b(R8) the 2nd pin is connected to triode b(VT2) base stage, triode b(VT2) emitter is connected to ground wire, triode b(VT2) collector electrode is connected to clamp diode b(VD8) anode and coil (K2) the 2nd end of relay b, clamp diode b(VD8) coil of negative electrode and relay b (K2) the 1st end is connected to the positive pole (V+) of working power, the break contact of relay b switch (K2 ') is connected to ground wire, the moving together contact of relay b switch (K2 ') is connected to driving power (V0), the movable contact of relay b switch (K2 ') is connected to drive output b(Y2).Drive output a(Y1) to the electromagnetic coil of self-holding electromagnetic valve, carry the driving current of forward, solenoid valve is opened; Drive output b(Y2) to the electromagnetic coil of self-holding electromagnetic valve, carry reverse driving current, make closed electromagnetic valve.
In the present embodiment, not gate a(IC2), not gate b(IC3), not gate c(IC4), not gate d(IC6) and not gate e(IC7) the hex inverter cmos digital intergrated circuit with scmitt trigger circuit of CC40106 model, use wherein 5 groups, the input end of unnecessary 1 group of not gate is connected to ground wire; With door a(IC5) and with door b(IC8) share 42 inputs and a door cmos digital intergrated circuit of a CC4081 model, use wherein two groups, unnecessary 2 groups with input end be connected to ground wire; The power end of digital integrated electronic circuit is connected to the positive pole (V+) of working power, and the ground end of digital integrated electronic circuit is connected to ground wire; Charging resistor a(R4) with as charging resistor b(R7) resistance be 640k Ω, delay capacitor a(C4) and delay capacitor b(C5) be 4.7uF, be 2 seconds electromagnetic coil current"on"time of solenoid valve unlatching crawl and closed electromagnetic valve crawl; Discharge resistance a(R3) and discharge resistance b(R6) resistance be 160k Ω, delay capacitor a(C4) and delay capacitor b(C5) discharge time be about 0.5 second.
The present embodiment is applied between control apparatus and self-holding electromagnetic valve, and when needs are opened self-holding electromagnetic valve, control apparatus is carried high level signal to the switching signal input end (X) of drive circuit; When needs are closed self-holding electromagnetic valve, control apparatus is carried low level signal to the switching signal input end (X) of drive circuit, the drive circuit of the present embodiment makes self-holding electromagnetic valve moment when opening the and only moment when closing switches on to electromagnetic coil only, and after self-holding electromagnetic valve is opened and after closing to electromagnetic coil auto-breaking, after electromagnetic coil power-off, by the magnetic force of permanent magnet, kept the state that opens or closes of spool.
Claims (5)
1. a drive circuit for self-holding electromagnetic valve, is characterized in that main circuit will be by regulator rectifier circuit, signal input circuit, inching switch circuit a, drive circuit a, inching switch circuit b and drive circuit b form, and wherein, regulator rectifier circuit is by power supply phase line input end (L), zero-power line input end (N), bridge rectifier (VD1-VD4), filter capacitor a(C1), quenching resistor (R2), filter capacitor b(C2), three-terminal regulator block (IC1) and filter capacitor c(C3) form, signal input circuit is by switching signal input end (X), not gate a(IC2), not gate b(IC3) and not gate d(IC6) form, inching switch circuit a is by charging resistor a(R4), delay capacitor a(C4), not gate c(IC4) and with door a(IC5) form, drive circuit a is by current-limiting resistance a(R5), triode a(VT1), clamp diode a(VD6), relay a and drive output a(Y1) form, inching switch circuit b is by charging resistor b(R7), delay capacitor b(C5), not gate e(IC7) and with door b(IC8) form, drive circuit b is by current-limiting resistance b(R8), triode b(VT2), clamp diode b(VD8), relay b and drive output b(Y2) form,
Power supply phase line input end (L) and zero-power line input end (N) are connected to two ac input ends of bridge rectifier (VD1-VD4), the positive pole of bridge rectifier (VD1-VD4) is connected to filter capacitor a(C1) positive pole and the 1st pin of quenching resistor (R2), the 2nd pin of quenching resistor (R2) is connected to filter capacitor b(C2) positive pole and the input end of three-terminal regulator block (IC1), the output terminal of three-terminal regulator block (IC1) is connected to filter capacitor c(C3) positive pole, the negative pole of bridge rectifier (VD1-VD4), filter capacitor a(C1) negative pole, filter capacitor b(C2) negative pole, the grounding end of three-terminal regulator block (IC1) and filter capacitor c(C3) negative pole be connected to ground wire, bridge rectifier (VD1-VD4) positive pole and filter capacitor a(C1) anodal tie point formation driving power (V0), the output terminal of three-terminal regulator block (IC1) and filter capacitor b(C2) anodal tie point form the positive pole (V+) of working power, switching signal input end (X) is connected to not gate a(IC2) input end and not gate d(IC6) input end, not gate a(IC2) output terminal is connected to not gate b(IC3) input end, not gate b(IC3) output terminal is connected to and door a(IC5) the 1st input end and charging resistor a(R4) the 1st pin, charging resistor a(R4) the 2nd pin is connected to delay capacitor a(C4) positive pole and not gate c(IC4) input end, delay capacitor a(C4) negative pole is connected to ground wire, not gate c(IC4) output terminal is connected to and door a(IC5) the 2nd input end, with door a(IC5) output terminal be connected to current-limiting resistance a(R5) the 1st pin, current-limiting resistance a(R5) the 2nd pin is connected to triode a(VT1) base stage, triode a(VT1) emitter is connected to ground wire, triode a(VT1) collector electrode is connected to clamp diode a(VD6) anode and the 2nd end of the coil (K1) of relay a, the 1st end of the coil of negative electrode clamp diode a(VD6) and relay a (K1) is connected to the positive pole (V+) of working power, the break contact of relay a switch (K1 ') is connected to ground wire, the moving together contact of relay a switch (K1 ') is connected to driving power (V0), the movable contact of relay a switch (K1 ') is connected to drive output a(Y1), not gate d(IC6) output terminal is connected to charging resistor b(R7) the 1st pin and with door b(IC8) the 1st input end, charging resistor b(R7) the 2nd pin is connected to delay capacitor b(C5) positive pole and not gate e(IC7) input end, delay capacitor b(C5) negative pole is connected to ground wire, not gate e(IC7) output terminal is connected to and door b(IC8) the 2nd input end, with door b(IC8) output terminal be connected to current-limiting resistance b(R8) the 1st pin, current-limiting resistance b(R8) the 2nd pin is connected to triode b(VT2) base stage, triode b(VT2) emitter is connected to ground wire, triode b(VT2) collector electrode is connected to clamp diode b(VD8) anode and coil (K2) the 2nd end of relay b, clamp diode b(VD8) coil of negative electrode and relay b (K2) the 1st end is connected to the positive pole (V+) of working power, the break contact of relay b switch (K2 ') is connected to ground wire, the moving together contact of relay b switch (K2 ') is connected to driving power (V0), the movable contact of relay b switch (K2 ') is connected to drive output b(Y2).
2. the drive circuit of a kind of self-holding electromagnetic valve according to claim 1, it is characterized in that there is discharge diode a(VD5 in inching switch circuit a) and discharge resistance a(R3), discharge diode a(VD5) anodic bonding is to delay capacitor a(C4) positive pole, discharge diode a(VD5) negative electrode is connected to discharge resistance a(R3) the 2nd pin, discharge resistance a(R3) the 1st pin be connected to not gate b(IC3) output terminal.
3. the drive circuit of a kind of self-holding electromagnetic valve according to claim 1, it is characterized in that there is discharge diode b(VD7 in inching switch circuit b) and discharge resistance b(R6), discharge diode b(VD7) anodic bonding is to delay capacitor b(C5) positive pole, discharge diode b(VD7) negative electrode is connected to discharge resistance b(R6) the 2nd pin, discharge resistance b(R6) the 1st pin be connected to not gate d(IC6) output terminal.
4. the drive circuit of a kind of self-holding electromagnetic valve according to claim 1, is characterized in that at not gate a(IC2) input end and not gate d(IC6) input end and ground wire between be connected with and be close to road resistance (R2).
5. the drive circuit of a kind of self-holding electromagnetic valve according to claim 1, it is characterized in that not gate a(IC2), not gate b(IC3), not gate c(IC4), not gate d(IC6) and not gate e(IC7) share a digital integrated electronic circuit, with door a(IC5) and with door b(IC8) share a digital integrated electronic circuit, the power end of digital integrated electronic circuit is connected to the positive pole (V+) of working power, and the ground end of digital integrated electronic circuit is connected to ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320469004.5U CN203421263U (en) | 2013-08-02 | 2013-08-02 | Driving circuit of self-hold electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320469004.5U CN203421263U (en) | 2013-08-02 | 2013-08-02 | Driving circuit of self-hold electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203421263U true CN203421263U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320469004.5U Expired - Fee Related CN203421263U (en) | 2013-08-02 | 2013-08-02 | Driving circuit of self-hold electromagnetic valve |
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| Country | Link |
|---|---|
| CN (1) | CN203421263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747777A (en) * | 2015-03-10 | 2015-07-01 | 浙江汉特姆阀门有限公司 | Fuel gas electromagnetic valve control circuit |
-
2013
- 2013-08-02 CN CN201320469004.5U patent/CN203421263U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747777A (en) * | 2015-03-10 | 2015-07-01 | 浙江汉特姆阀门有限公司 | Fuel gas electromagnetic valve control circuit |
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