CN104676076A - Pulse type alternating-current solenoid valve with resistive and capacitive voltage reducing rectification type DC (Direct Current) power supply circuit - Google Patents
Pulse type alternating-current solenoid valve with resistive and capacitive voltage reducing rectification type DC (Direct Current) power supply circuit Download PDFInfo
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- CN104676076A CN104676076A CN201510091278.9A CN201510091278A CN104676076A CN 104676076 A CN104676076 A CN 104676076A CN 201510091278 A CN201510091278 A CN 201510091278A CN 104676076 A CN104676076 A CN 104676076A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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Abstract
The invention relates to a pulse type alternating-current solenoid valve with a resistive and capacitive voltage reducing rectification type DC (Direct Current) power supply circuit. The pulse type alternating-current solenoid valve comprises two parts including a pulse type power saving unit and a traditional alternating-current solenoid valve, wherein the pulse type power saving unit is composed of a DC power supply circuit, a switching pulse generating circuit, an execution circuit, a holding voltage reducing circuit and a bridge circuit, and the DC power supply circuit is the resistive and capacitive voltage reducing bridge rectification type DC power supply circuit.
Description
Technical field
The present invention relates to Low Voltage Electrical Apparatus, particularly relate to a kind of have saving power, static noise function " there is the pulsed alternating current electromagnetic valve of resistance-capacitance depressurization rectification type DC power circuit ".
Background technique
Solenoid valve (Electromagnetic valve) is that a kind of electromagnetic force relying on field coil to produce is to drive the fluid control device of valve open/close.
Alternating current electromagnetic valve is the type in solenoid valve, is the low-voltage electrical apparatus applied in household electric appliance and industrial control equipment widely.Be characterized in field coil incoming transport voltage, produce the electromagnetic force driving valve open/close with alternating current (a.c.).
Alternating current electromagnetic valve is primarily of field coil, spool, Returnning spring composition.Fig. 1 a, Fig. 1 b are the schematic diagram of alternating electromagnetic valve controls fluid (gas or liquid) switching; Fig. 2 a, Fig. 2 b are the schematic diagram that the AC hydraulic electromagnetic valve " hydraulic oil " in hydraulic equipment flows to.
Composition graphs 1a: when A1, A2 termination of field coil leads to AC220V, AC110V or AC380V voltage (being generally called AC220V, AC110V or AC380V is below AC voltage), its electromagnetic force produced promotes spool and overcomes the resistance of Returnning spring and move down, the piston be connected with spool also moves down thereupon, described alternating current electromagnetic valve is opened, and its " entrance " and " outlet " are connected.
Composition graphs 1b: when the AC voltage in field coil turns off, spool loss of excitation power, moves on by the effect of Returnning spring, piston also with on move, described alternating current electromagnetic valve " resets ", its " entrance " and " outlet " turn off.
Composition graphs 2a: when A1, A2 termination of the field coil of hydraulic buttery valve leads to AC voltage, its electromagnetic force produced promotes spool and overcomes the resistance of Returnning spring and move right, the one group of piston be connected with spool also moves to right thereupon, and 2 mouthfuls of described hydraulic buttery valve are just switched on 4 mouthfuls with 3 mouthfuls, 1 mouthful.
Composition graphs 2b: when the AC voltage in the field coil of hydraulic buttery valve turns off, spool loss of excitation power, move to left by the effect of Returnning spring, piston also moves to left thereupon, described hydraulic buttery valve " reset ", and its 1 mouthful is just switched on 5 mouthfuls with 2 mouthfuls, 4 mouthfuls.
In sum, the working procedure of alternating current electromagnetic valve can be divided into " promotion ", " maintenance " " reset " three phases:
1, promote: A1, A2 end and the AC Voltage On state of field coil, electromagnetic force promotes valve core movement;
2, keep: spool arrives the position of setting, field coil continues and AC Voltage On state, and spool continues by electromagnetic force and remains on the position of setting;
3, reset: field coil disconnects AC voltage, spool dead electricity magnetic force and resetting.
Aobvious you easily see, in the promotion stage, the elastic force that spool must overcome stiction and Returnning spring needs larger electromagnetic force to move.Corresponding, AC voltage must provide higher voltage, larger power (hereinafter referred to as promotion power) field coil could produce larger electromagnetic force, can ensure the motion of spool.
In the maintenance stage, spool arrives desired location, and the elastic force that need only overcome Returnning spring just can remain on desired location.Corresponding, if now field coil still pass to promotion stage-alternating voltage that sample is high, will energy dissipation be caused and make field coil without the intensification of favour!
Owing to promoting all to pass to identical alternating current voltage (such as AC220V) with maintenance stage field coil, therefore there is following critical defect in traditional alternating current electromagnetic valve:
1, generate heat: front already described, in promotion and maintenance stage, traditional alternating current electromagnetic valve all passes to identical alternating voltage (such as AC220V), and therefore, heating is serious, and the phenomenon that field coil burns because of overheated also occurs repeatedly;
2, power consumption: the energy of traditional alternating current electromagnetic valve heating inputs electric energy in field coil exactly, another shortcoming that this kind of harmful heating brings is exactly meaningless power consumption.Reduce this power consumption, just can obtain the effect of " economize on electricity ";
Therefore and system is out of control 3, out of control: after field coil heating, its impedance increases, and electric current diminishes, and electromagnetic force also can not promote spool to desired location thereupon reduction, household electric appliance or industrial control equipment can.
For the shortcoming of traditional alternating current electromagnetic valve, the present invention want Da to target be:
1, " by electronics technical innovation conventional industries ", design a kind of electronic circuit as far as possible device simple, used as far as possible few, price as far as possible honest and clean, conventional AC solenoid valve can be made to economize on electricity " the pulsed power save unit " of noise elimination;
2, should " pulsed power save unit " can be used for transforming the online conventional AC solenoid valve used, making these alternating current electromagnetic valves rise Grade becomes the alternating current electromagnetic valve with economize on electricity, noise elimination function;
3, should " pulsed power save unit " also accessible site in the alternating current electromagnetic valve that will produce, the MANUFACTURER of alternating current electromagnetic valve is produced novel have integrated with " pulsed power save unit " is economized on electricity, " the pulsed alternating current electromagnetic valve " of noise elimination function.
Summary of the invention
In order to reach above-mentioned target, the technological scheme of the present invention's design is: a kind of pulsed alternating current electromagnetic valve, comprise pulsed power save unit 100 and conventional AC solenoid valve two part, it is characterized in that: described pulsed power save unit 100 is made up of DC power circuit 101, switching pulse circuit for generating 102, executive circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105, further, input end 5 end of described DC power circuit 101 is held with the P1 of AC voltage and is connected; Input end 7 end of described switching pulse circuit for generating 102 is connected with output terminal 6 end of described DC power circuit 101; One end of described executive circuit 103 is connected with input end 7 end of described switching pulse circuit for generating 102, and the other end is connected with output terminal 9 end of described switching pulse circuit for generating 102; 1 end of described bridge circuit 105 is held with the P1 of AC voltage and is connected, and 2 ends are connected with the contact K1 among described executive circuit 103, and 3 ends, 4 ends are held with the A1 of the field coil L in conventional AC solenoid valve respectively, A2 holds and is connected; Moving together contact K3 among described executive circuit 103 is connected with keeping one end of voltage step-down circuit 104; Keep the break contact K2 among the other end of voltage step-down circuit 104, described DC power circuit 101, executive circuit 103 all to hold with the P2 of AC voltage to be connected.
Described DC power circuit 101 can adopt multiple circuit structure, and the present invention has selected following three kinds:
(a), threshold-type: be made up of input end 5, output terminal 6, first diode D1, the first resistance R1, the second resistance R2, the first electric capacity C1, the first transient voltage suppressor diode TVS1 (transient voltage suppression diode), their Placement is: input end 5 is held with the P1 of AC voltage and is connected; After first diode D1, the first resistance R1, the first transient voltage suppressor diode TVS1 are in series successively, one end i.e. positive terminal of the first diode D1 is connected with input end 5, and the other end i.e. positive terminal of the first transient voltage suppressor diode TVS1 is connected with output terminal 6; After first electric capacity C1 and the second resistance R2 is in parallel, its positive terminal is connected with output terminal 6, and negative pole end is held with the P2 of AC voltage and is connected.
The breakdown voltage U of the first transient voltage suppressor diode TVS1
b1for the threshold value of described DC power circuit 101, when the momentary value of the random AC voltage connected is greater than described threshold value, the first described transient voltage suppressor diode TVS1 conducting, otherwise, when the momentary value of AC voltage is less than described threshold value, the first described transient voltage suppressor diode TVS1 ends.
(b), resistance, appearance step-down, bridge commutating type: be made up of input end 5, output terminal 6, the 5th resistance R5, the 6th resistance R6, the 5th electric capacity C5, the 6th electric capacity C6, the 7th diode D7, the 8th diode D8, the 9th diode D9, the tenth diode D10, circuit common E, wherein, the 5th resistance R5, the 5th electric capacity C5 are resistance, hold decompression device; 7th diode D7, the 8th diode D8, the 9th diode D9, the tenth diode D10 consist of rectifier bridge; Their Placement is: input end 5 is held with the P1 of AC voltage and is connected; The negative pole of the 7th diode D7, the positive pole of the 9th diode D9 are all connected with input end 5; The negative pole of the 9th diode D9, the negative pole of the tenth diode D10 are all connected with output terminal 6; The positive pole of the 7th diode D7, the positive pole of the 8th diode D8 are all connected with circuit common E; After 5th electric capacity C5 and the 5th resistance R5 is in parallel, one end is all connected with the negative pole of the 8th diode D8, the positive pole of the tenth diode D10; The other end is held with the P2 of AC voltage and is connected; After 6th electric capacity C6 and the 6th resistance R6 is in parallel, one end is connected with circuit common E; The other end is connected with output terminal 6.
(c), resistance, appearance step-down, voltage regulation type; Be made up of input end 5, output terminal 6, the 7th resistance R7, the 8th resistance R8, the 7th electric capacity C7, the 8th electric capacity C8, the 11 diode D11, the second transient voltage suppressor diode TVS2; Wherein, the 7th resistance R7, the 7th electric capacity C7 are resistance, hold decompression device; Second transient voltage suppressor diode TVS2 is voltage-stabilizing device; Their Placement is: input end 5 is held with the P1 of AC voltage and is connected; After 7th electric capacity C7 and the 7th resistance R7 is in parallel, one end is connected with input end 5, and the other end is all connected with the positive pole of the 11 diode D11, the negative pole of the second transient voltage suppressor diode TVS2; After 8th electric capacity C8 and the 8th resistance R8 is in parallel, its positive terminal is connected with output terminal 6, and negative pole end is held with the P2 of AC voltage and is connected; The positive pole of the second transient voltage suppressor diode TVS2 is also held with the P2 of AC voltage and is connected.
The first described transient voltage suppressor diode TVS1, second transient voltage suppressor diode TVS2 all can with ambipolar transient voltage suppressor diode (Bipolar transient voltage suppression diode), varistor (pressure sensitive resistor), gas discharge tube (gaseous discharge tube), semiconductor discharge tube (thyristor surge suppressors), electrostatic restrains device (Electro-Static discharge), reference diode (Voltage regulator diode) or Transient Voltage Suppressor (Transient Voltage Suppressor) substitute.
Described switching pulse circuit for generating 102 can adopt multiple circuit structure, the present invention is preferred following four kinds:
(a), triode I type: be made up of input end 7, output terminal 9, the 3rd resistance R3, the 4th resistance R4, the second electric capacity C2 and triode T1, their Placement is: input end 7 is connected with output terminal 6 end of described DC power circuit 101; One end of 3rd resistance R3 is connected with input end 7; One end of the other end and the second electric capacity C2, one end of the 4th resistance R4, the base stage of triode T1 are all connected; The emitter of the other end of the second electric capacity C2, the other end of the 4th resistance R4, triode T1 is all held with the P2 of AC voltage and is connected; The collector electrode of triode T1 is connected with output terminal 9.
(b), triode II type: be made up of input end 7, output terminal 9, circuit common E, the 3rd resistance R3, the 4th resistance R4, the second electric capacity C2 and triode T1, their Placement is: input end 7 is connected with output terminal 6 end of described DC power circuit 101; One end of 3rd resistance R3 is connected with input end 7; One end of the other end and the second electric capacity C2, one end of the 4th resistance R4, the base stage of triode T1 are all connected; The other end of the second electric capacity C2, the other end of the 4th resistance R4, the emitter of triode T1 are all connected with circuit common E; The collector electrode of triode T1 is connected with output terminal 9.
(C), integrated circuit type I type: be made up of input end 7, output terminal 9, the 9th resistance R9, the tenth resistance R10, the 11 resistance R11, the 12 resistance R12, the 9th electric capacity C9 and integrated voltage comparator IC1, their Placement is: input end 7 is connected with output terminal 6 end of described DC power circuit 101; One end of 9th resistance R9, one end of the 11 resistance R11,8 pin of integrated voltage comparator IC1 are all connected with input end 7; 4 pin of one end of the tenth resistance R10, one end of the 12 resistance R12, integrated voltage comparator IC1, one end of the 9th electric capacity C9 are all held with the P2 of AC voltage and are connected; The other end of the other end of the 9th resistance R9, the other end of the tenth resistance R10, the 9th electric capacity C9 is all connected with inversion signal input end 2 pin of integrated voltage comparator IC1; The other end of the 11 resistance R11, the other end of the 12 resistance R12 are all connected with in-phase signal input end 3 pin of integrated voltage comparator IC1; 1 pin of integrated voltage comparator IC1 is connected with output terminal 9.
(d), integrated circuit type II type: be made up of input end 7, output terminal the 9, the 13 resistance R13, the 14 resistance R14, the 15 resistance R15, the 16 resistance R16, the tenth electric capacity C10 and integrated voltage comparator IC2, their Placement is: input end 7 is connected with output terminal 6 end of described DC power circuit 101; 8 pin of the respective one end of the tenth electric capacity C10, the 13 resistance R13, the 15 resistance R15 and integrated voltage comparator IC2 are all connected with input end 7; 4 pin of the respective one end of the 14 resistance R14, the 16 resistance R16 and integrated voltage comparator IC2 are all held with the P2 of AC voltage and are connected; The other end of the other end of the tenth electric capacity C10, the other end of the 13 resistance R13, the 14 resistance R14 is all connected with in-phase signal input end 3 pin of integrated voltage comparator IC2; The other end of the 15 resistance R15, the other end of the 16 resistance R16 are all connected with inversion signal input end 2 pin of integrated voltage comparator IC2; 1 pin of integrated voltage comparator IC2 is connected with output terminal 9.
Described executive circuit 103 is made up of the 6th diode D6, relay, and described relay comprises its line bag J and contact K1, break contact K2, moving together contact K3; Their Placement is: after the 6th diode D6 and relay line bag J is in parallel, its negative pole end is connected with input end 7 end of switching pulse circuit for generating 102, and the other end positive terminal is connected with output terminal 9 end of described switching pulse circuit for generating 102; Contact K1 is connected with 2 ends of bridge circuit 105; Break contact K2 hold with the P2 of AC voltage be connected, moving together contact K3 is connected with keeping one end of voltage step-down circuit 104.
Described relay can adopt electromagnetic relay, also can adopt solid-state relay, dry reed relay.
Described maintenance voltage step-down circuit 104 is made up of the 3rd electric capacity C3, and its one end is connected with the moving together contact K3 of described executive circuit 103, and the other end is held with the P2 of AC voltage and is connected.
Described bridge circuit 105 is made up of 1 end, 2 ends, 3 ends, 4 ends, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, their Placement is: the negative pole of the second diode D2, the positive pole of the 3rd diode D3 are all connected with 1 end, and 1 end is then held with the P1 of AC voltage and is connected; The negative pole of the 4th diode D4, the positive pole of the 5th diode D5 are all connected with 2 ends, and 2 ends are then connected with the contact K1 in executive circuit 103; The negative pole of the 3rd diode D3, the negative pole of the 5th diode D5 are all connected with 3 ends, and 3 ends are then held with the A1 of field coil L and are connected; The positive pole of the second diode D2, the positive pole of the 4th diode D4 are all connected with 4 ends, and 4 ends are then held with the A2 of field coil L and are connected.
Performance characteristic of the present invention is: high-power promotion, small-power keep.
Application the present invention, can obtain following beneficial effect:
1, economize on electricity.Although promote spool to need high-tension high-power to desired location, but due to this " promotion " time only several milliseconds, therefore, when solenoid valve runs, the ratio that the power consumption in " promotion " stage is shared in total power consumption is very little, the size of power consumption when solenoid valve runs embodies primarily of power (hereinafter referred to as " maintenance the power ") size in " maintenances " stage, keeps power large, and its power consumption just greatly; Otherwise keep power little, its power consumption is just little, just economize on electricity.
The present invention is owing to having the performance characteristic of " high-power promotion, small-power keep ", and therefore, electric energy is high.
The maintenance power of the AC220V conventional AC solenoid valve of the hydraulic pressure of actual measurement-kind of model is 34.6W, and after application the present invention, maintenance power drop is 3.2W, and electric energy reaches 91%, as can be seen here, applies the present invention, can produce good energy-saving efficiency.
2, noise elimination.Conventional AC solenoid valve run time and noise " as shade with "---noise can be heard without end.After application the present invention, alternating current electromagnetic valve can be made to realize " noise elimination "---solenoid valve is attached to the basal part of the ear and also can't hear a noise.This noise elimination function has great Practical significance for the alternating current electromagnetic valve be arranged on the household electric appliance such as refrigerator, water purifier.
3, temperature rise is little.Temperature rise is the important indicator weighing electronics or electrical products reliability, and temperature rise is little, and the reliability of electronics or electrical products is just high; Otherwise the reliability of electronics or electrical products is just low.The present invention due to electric energy high, therefore temperature rise is inevitable little.Actual motion shows: under the condition of 30 DEG C of room temperatures, is still room temperature after the alternating current electromagnetic valve of application manufactured by the present invention runs 24 hours continuously, and after conventional AC solenoid valve runs half an hour continuously, has been warming up to more than 60 DEG C.
4, enameled cable is economized.Application the present invention, can save the enameled cable of coiling field coil significantly.Actual measurement shows, this field coil around 2500 circles, after application the present invention, must be reduced to 1000 circles by the former of the field coil of the AC220V alternating current electromagnetic valve of-kind of hydraulic pressure, and alternating current electromagnetic valve still has the little premium properties of economize on electricity, noise elimination, temperature rise.
Accompanying drawing explanation
Fig. 1 a is the schematic diagram of the alternating current electromagnetic valve "on" position of gas or liquid;
Fig. 1 b is the schematic diagram of the alternating current electromagnetic valve off-position of gas or liquid;
Fig. 2 a is the schematic diagram of the alternating current electromagnetic valve "on" position of hydraulic pressure;
Fig. 2 b is the schematic diagram of the alternating current electromagnetic valve off-position of hydraulic pressure;
Fig. 3 is functional-block diagram of the present invention, in figure: 100 is pulsed power save unit;
Fig. 4 is the circuit theory diagrams of embodiment 1;
Fig. 5 is the circuit theory diagrams of embodiment 2,
Fig. 6 is the circuit theory diagrams of embodiment 3;
Fig. 7 is the circuit theory diagrams of embodiment 4;
Fig. 8 a is the oscillogram of AC voltage;
Fig. 8 b is the V1 voltage oscillogram of embodiment 1:
Fig. 8 C is the oscillogram of the pulsed voltage VC of embodiment 1.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described.
Fig. 3 is functional-block diagram of the present invention, show in figure: a kind of pulsed alternating current electromagnetic valve, comprise pulsed power save unit 100 and conventional AC solenoid valve two part, it is characterized in that: described pulsed power save unit 100 is made up of DC power circuit 101, switching pulse circuit for generating 102, executive circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105, further, input end 5 end of described DC power circuit 101 is held with the P1 of AC voltage and is connected; Input end 7 end of described switching pulse circuit for generating 102 is connected with output terminal 6 end of described DC power circuit 101; One end of described executive circuit 103 is connected with input end 7 end of described switching pulse circuit for generating 102, and the other end is connected with output terminal 9 end of described switching pulse circuit for generating 102; 1 end of described bridge circuit 105 is held with the P1 of AC voltage and is connected, and 2 ends are connected with the contact K1 among described executive circuit 103, and 3 ends, 4 ends are held with the A1 of the field coil L in conventional AC solenoid valve respectively, A2 holds and is connected; Moving together contact K3 among described executive circuit 103 is connected with keeping one end of voltage step-down circuit 104; Keep the break contact K2 among the other end of voltage step-down circuit 104, described DC power circuit 101, executive circuit 103 all to hold with the P2 of AC voltage to be connected.
Fig. 4 is the circuit theory diagrams of embodiment 1, shows in figure:
Input end 5, output terminal 6, first diode D1, the first resistance R1, the second resistance R2, the first electric capacity C1, the first transient voltage suppressor diode TVS1 constitute the DC power circuit 101 of threshold-type; Their Placement is: input end 5 is held with the P1 of AC voltage and is connected; After first diode D1, the first resistance R1, the first transient voltage suppressor diode TVS1 are in series successively, one end i.e. positive terminal of the first diode D1 is connected with input end 5, and the other end i.e. positive terminal of the first transient voltage suppressor diode TVS1 is connected with output terminal 6; After first electric capacity C1 and the second resistance R2 is in parallel, its positive terminal is connected with output terminal 6, and negative pole end is held with the P2 of AC voltage and is connected.
Input end 7, output terminal 9, the 3rd resistance R3, the 4th resistance R4, the second electric capacity C2 and triode T1 constitute triode I type switching pulse circuit for generating 102, and their Placement is: input end 7 is connected with output terminal 6 end of DC power circuit 101; One end of 3rd resistance R3 is connected with input end 7; One end of the other end and the second electric capacity C2, one end of the 4th resistance R4, the base stage of triode T1 are all connected; The emitter of the other end of the second electric capacity C2, the other end of the 4th resistance R4, triode T1 is all held with the P2 of AC voltage and is connected; The collector electrode of triode T1 is connected with output terminal 9.
6th diode D6, relay constitute executive circuit 103, and described relay comprises its line bag J and contact K1, break contact K2, moving together contact K3; Their Placement is: after the 6th diode D6 and line bag J is in parallel, and its negative pole end is connected with input end 7 end of switching pulse circuit for generating 102, and the other end and positive terminal are connected with output terminal 9 end of described switching pulse circuit for generating 102; Contact K1 is connected with 2 ends of bridge circuit 105; Break contact K2 hold with the P2 of AC voltage be connected, moving together contact K3 is connected with keeping one end of voltage step-down circuit 104.
Those skilled in the art will appreciate that the relay in executive circuit 103 can adopt electromagnetic relay, also can adopt solid-state relay, dry reed relay.
3rd electric capacity C3 constitutes and keeps voltage step-down circuit 104, and its one end is connected with the moving together contact K3 of described executive circuit 103, and the other end is held with the P2 of AC voltage and is connected.
1 end, 2 ends, 3 ends, 4 ends, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5 constitute bridge circuit 105, their Placement is: the negative pole of the second diode D2, the positive pole of the 3rd diode D3 are all connected with 1 end, and 1 end is then held with the P1 of AC voltage and is connected; The negative pole of the 4th diode D4, the positive pole of the 5th diode D5 are all connected with 2 ends, and 2 ends are then connected with the contact K1 in executive circuit 103; The negative pole of the 3rd diode D3, the negative pole of the 5th diode D5 are all connected with 3 ends, and 3 ends are then held with the A1 of field coil L and are connected; The positive pole of the second diode D2, the positive pole of the 4th diode D4 are all connected with 4 ends, and 4 ends are then held with the A2 of field coil L and are connected.
Those skilled in the art it will be appreciated that the A1 end of described field coil L, A2 end can connect in reciprocity.
The DC power circuit 101 of the present embodiment 1 is the DC power circuit of threshold-type, the breakdown voltage U of the first transient voltage suppressor diode TVS1
b1for its threshold value, when the momentary value of the random AC voltage connected is greater than described threshold value, the first described transient voltage suppressor diode TVS1 conducting, otherwise, when the momentary value of AC voltage is less than described threshold value, the first described transient voltage suppressor diode TVS1 ends.
Composition graphs 4, Fig. 8 a, from the mathematic(al) representation of the AC voltage of P1, P2 end input be:
u＝U
mSin(ωt+φ)
In above formula: u is the momentary value of AC voltage, U
mfor AC voltage vibration amplitude, ω is the angular frequency of AC voltage, and φ is the initial phase angle of AC voltage.
For concise explanation, now suppose initial phase angle φ=0, then the representation of the momentary value u of AC voltage is:
u＝U
mSinωt
Its waveform as shown in Figure 8 a.
Composition graphs 4, Fig. 8 a, Fig. 8 b, Fig. 8 c can set forth the main working procedure of the present embodiment 1:
If during t=t1, AC Voltage On state, because the momentary value u1 of now AC voltage is greater than threshold value U
b1namely
u1＝U
mSinωt1＞U
B1
Therefore the first described transient voltage suppressor diode TVS1 conducting, voltage V1 progressively rises, and during to t=t2, the momentary value of AC voltage is vibration amplitude U
m, voltage V1 rises to peak.
It will be apparent to those skilled in the art following some:
1, voltage V1 is in t2 ~ t3, t3 ~ t01, t01 ~ t02, t02 ~ t4 time domain and corresponding time domain thereof, and its value is successively decreased;
2, voltage V1 is in t4 ~ t5 time domain and corresponding time domain thereof, and its value increases progressively;
3, voltage V1 is the VDC with ripple voltage, but ripple voltage does not affect work of the present invention, and its waveform as shown in Figure 8 b.
During t=t1, u1=U
msin ω t1 > U
b1, the second transient voltage suppressor diode TVS2 conducting, the value of voltage V1 starts to rise.Due to now, voltage on second electric capacity C2 is zero, its equivalent short circuit, therefore Vb=0, triode T1 ends, voltage Vc ≈ V1, no current circulation in relay line bag J in described executive circuit 103, contact K1 and break contact K2 is on state, solenoid valve enters " promotion " stage, AC voltage is when P1 end is held as low level positive half cycle for high level P2,-1 end-D3-3 end-A1 end-L-A2 is held to hold the path of-4 ends-D4-2 end-K1-K2-P2 end along P1, when P2 end is held as low level negative half period for high level P1, path along P2 end-K2-K1-2 end-D5-3 end-A1 end-L-A2 end-4 ends-D2-1 end-P1 end inputs " promotion power " needed for solenoid valve promotion spool respectively.Due to the 3rd diode D3, the 4th diode D4 during positive half cycle, during negative half period, the second diode D2, the 5th diode D5 are all in the minimum on state of impedance, be equivalent to the two ends that AC voltage is applied directly to magnetizing inductance L, therefore, in " promotion " stage, the promotion power that AC voltage provides is larger.
During t=t8, along with the process that V1 voltage is charged to the second electric capacity C2 by the 3rd resistance R3, voltage Vb >=0.7v between voltage on second electric capacity C2 and triode T1 base stage, emitter (refers to silicon triode, germanium triode is then 0.3v), triode T1 conducting, voltage Vc becomes low level, the i.e. output terminal 9 end output low level of the switching pulse circuit for generating 102 of triode type, current flowing is had in relay line bag J in executive circuit 103, break contact K2 disconnects, contact K1 and moving together contact K3 connects, and solenoid valve enters " maintenance " stage.
In " maintenance " stage of solenoid valve, AC voltage by the maintenance voltage step-down circuit 104 that is made up of the 3rd electric capacity C3 for solenoid valve provides maintenance power, its process is: at P1 end for high level P2 holds as the positive half cycle of low level AC voltage, and AC voltage holds the path of-1 end-D3-3 end-A1 end-L-A2 end-4 ends-D4-2 end-K1-K3-C3-P2 end to provide maintenance power for solenoid valve along P1; At P2 end for high level P1 holds as low level AC voltage negative half cycle, AC voltage provides maintenance power along the path of P2 end-C3-K3-K1-2 end-D5-3 end-A1 end-L-A2 end-4 ends-D2-1 end-P1 end for solenoid valve.In above-mentioned path, AC voltage is all applied at the two ends of magnetizing inductance L again after the 3rd electric capacity C3 step-down, and therefore, in " maintenance " stage, " maintenance power " that AC voltage provides is less, much smaller than aforesaid " promotion power ".
In brief: must with high-power to desired location according to promotion spool, keep spool need only the design done of low power electromagnetic valve work principle at desired location, one of feature of the present invention is: the stage that promotes is with high-power operation, the maintenance stage is with small-power work, or summary is: high-power promotion, small-power keep.
Implementing the method for operation of " high-power promotion, small-power keep ", is the reason that the present invention obtains good electric energy.
During t=t13, AC voltage turns off, and solenoid valve enters " reset " stage, and " spool " retreats to original position.
Composition graphs 8c, the output voltage Vc of the switching pulse circuit for generating 102 of described triode I type is pulsed voltage, and t1 ~ t8 time domain and corresponding time domain are the time domain that pulse " accounts for ", and it exports high level; T8 ~ t13 time domain and corresponding time domain are the time domain of pulse " sky ", and its output low level, its pulse shape as shown in Figure 8 c.
In sum; The working procedure of the present embodiment can be divided into following three phases:
1, t1 ~ t8 time domain is the promotion stage, and in this t1 ~ t8 time domain, triode T1 ends, and pulsed voltage Vc is high level, and contact K1 and break contact K2 is on state, and AC voltage input solenoid valve promotes larger " promotion power " needed for spool;
2, t8 ~ t13 time domain is the maintenance stage, in this t8 ~ t13 time domain, and triode T1 conducting, pulsed voltage Vc is low level, and contact K1 and moving together contact K3 is on-state, after the 3rd electric capacity C3 step-down, " maintenance power " that the input of AC voltage is less;
3, t13 ~ t14 time domain is reseting stage, and in this t13 ~ t14 time domain, the power-off of AC voltage, pulsed power save unit 100 and solenoid valve all reset.
During t=t14, AC voltage recloses, solenoid valve reenters " promotion ", " maintenance ", " reset " operation cycle in.
Fig. 5 is the circuit theory diagrams of embodiment 2, and its executive circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105 are all identical with embodiment 1.But DC power circuit 101, switching pulse circuit for generating 102 are different from embodiment 1.
Composition graphs 5, the DC power circuit 101 of the present embodiment 2 adopts resistance, holds step-down, bridge commutating type DC power circuit, it is made up of input end 5, output terminal 6, the 5th resistance R5, the 6th resistance R6, the 5th electric capacity C5, the 6th electric capacity C6, the 7th diode D7, the 8th diode D8, the 9th diode D9, the tenth diode D10, circuit common E, wherein, the 5th resistance R5, the 5th electric capacity C5 are resistance, hold decompression device; 7th diode D7, the 8th diode D8, the 9th diode D9, the tenth diode D10 consist of rectifier bridge; Their Placement is: input end 5 is held with the P1 of AC voltage and is connected; The negative pole of the 7th diode D7, the positive pole of the 9th diode D9 are all connected with input end 5; The negative pole of the 9th diode D9, the negative pole of the tenth diode D10 are all connected with output terminal 6; The positive pole of the 7th diode D7, the positive pole of the 8th diode D8 are all connected with circuit common E; After 5th electric capacity C5 and the 5th resistance R5 is in parallel, one end is all connected with the negative pole of the 8th diode D8, the positive pole of the tenth diode D10; The other end is held with the P2 of AC voltage and is connected; After 6th electric capacity C6 and the 6th resistance R6 is in parallel, one end is connected with circuit common E; The other end is connected with output terminal 6.
Composition graphs 5 again, the switching pulse circuit for generating 102 of the present embodiment 2 adopts triode II type switching pulse circuit for generating, it is made up of input end 7, output terminal 9, circuit common E, the 3rd resistance R3, the 4th resistance R4, the second electric capacity C2 and triode T1, and their Placement is: input end 7 is connected with output terminal 6 end of described DC power circuit 101; One end of 3rd resistance R3 is connected with input end 7; One end of the other end and the second electric capacity C2, one end of the 4th resistance R4, the base stage of triode T1 are all connected; The other end of the second electric capacity C2, the other end of the 4th resistance R4, the emitter of triode T1 are all connected with circuit common E; The collector electrode of triode T1 is connected with output terminal 9.
Though the circuit structure of the present embodiment 2 is slightly different from embodiment 1, its working procedure is identical with embodiment 1.
Fig. 6 is the circuit theory diagrams of embodiment 3, and its executive circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105 are all identical with embodiment 1.But DC power circuit 101, switching pulse circuit for generating 102 are different from embodiment 1.
Composition graphs 6, the DC power circuit 101 of the present embodiment 3 adopts resistance, holds step-down, voltage regulation type DC power circuit, and it is made up of input end 5, output terminal 6, the 7th resistance R7, the 8th resistance R8, the 7th electric capacity C7, the 8th electric capacity C8, the 11 diode D11, the second transient voltage suppressor diode TVS2; Their Placement is: input end 5 is held with the P1 of AC voltage and is connected; After 7th electric capacity C7 and the 7th resistance R7 is in parallel, one end is connected with input end 5, and the other end is all connected with the positive pole of the 11 diode D11, the negative pole of the second transient voltage suppressor diode TVS2; After 8th electric capacity C8 and the 8th resistance R8 is in parallel, its positive terminal is connected with output terminal 6, and negative pole end is held with the P2 of AC voltage and is connected; The positive pole of the second transient voltage suppressor diode TVS2 is also held with the P2 of AC voltage and is connected.
In above-mentioned resistance, hold step-down, in voltage regulation type DC power circuit, the 7th electric capacity C7 and the 7th resistance R7 plays and hinders, holds hypotensive effect, and the 11 diode D11 plays rectified action, and the second transient voltage suppressor diode TVS2 then plays following effect:
1, pressure stabilization function, in this circuit, it is equivalent to reference diode---stabilize the D/C voltage that output terminal 6 end exports;
2, discharge process, at P1 end for high level P2 holds as the positive half cycle of low level AC voltage, AC voltage charges to the 7th electric capacity C7, and at P2 end for high level P1 holds as low level AC voltage negative half cycle, the 7th electric capacity C7 is discharged by the second described transient voltage suppressor diode TVS2.
Composition graphs 6 again, the switching pulse circuit for generating 102 of the present embodiment 3 adopts integrated circuit type I type: it is made up of input end 7, output terminal 9, the 9th resistance R9, the tenth resistance R10, the 11 resistance R11, the 12 resistance R12, the 9th electric capacity C9 and integrated voltage comparator IC1, and their Placement is: input end 7 is connected with output terminal 6 end of described DC power circuit 101; One end of 9th resistance R9, one end of the 11 resistance R11,8 pin of integrated voltage comparator IC1 are all connected with input end 7; 4 pin of one end of the tenth resistance R10, one end of the 12 resistance R12, integrated voltage comparator IC1, one end of the 9th electric capacity C9 are all held with the P2 of AC voltage and are connected; The other end of the other end of the 9th resistance R9, the other end of the tenth resistance R10, the 9th electric capacity C9 is all connected with inversion signal input end 2 pin of integrated voltage comparator IC1; The other end of the 11 resistance R11, the other end of the 12 resistance R12 are all connected with in-phase signal input end 3 pin of integrated voltage comparator IC1; 1 pin of integrated voltage comparator IC1 is connected with output terminal 9.
The concise and to the point working procedure of the present embodiment 3 is;
1, the stage is promoted: the voltage on inversion signal input end 2 pin of the voltage on the 9th electric capacity C9 and integrated voltage comparator IC1 is lower than the voltage on its in-phase signal input end 3 pin, the output terminal 9 be connected with its 1 pin exports high level, relay line bag J no current circulates, break contact K2 and contact K1 is on state, " promotion power " that the input of AC voltage is larger;
2, the stage is kept: along with the continuity of charging process, voltage on inversion signal input end 2 pin of the voltage on the 9th electric capacity C9 and integrated voltage comparator IC1 becomes higher than the voltage on its in-phase signal input end 3 pin, output terminal 9 output low level be connected with its 1 pin, relay line bag J has current flowing, moving together contact K3 contact K1 connects, and AC voltage is inputted less " maintenance power " by the 3rd electric capacity C3;
3, reseting stage: AC voltage power-off, pulsed power save unit 100 and solenoid valve all reset.
Compared with embodiment 1, the present embodiment 3 working procedure is substantially the same manner as Example 1, difference is: the switching pulse voltage being input to executive circuit 103, is produced by triode T1 in embodiment 1, is then produced by integrated voltage comparator IC1 at the present embodiment 3.
Fig. 7 is embodiment 4 circuit theory diagrams, its resistance, appearance step-down, the DC power circuit 101 of voltage regulation type, executive circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105, all identical with embodiment 3, but switching pulse circuit for generating 102 is different from embodiment 3, what embodiment 3 adopted is integrated circuit type I type switching pulse circuit for generating, and what the present embodiment 4 adopted is integrated circuit type II type switching pulse circuit for generating.
Composition graphs 7, the integrated circuit type II type switching pulse circuit for generating that embodiment 4 adopts is made up of input end 7, output terminal the 9, the 13 resistance R13, the 14 resistance R14, the 15 resistance R15, the 16 resistance R16, the tenth electric capacity C10 and integrated voltage comparator IC2, and their Placement is: input end 7 is connected with output terminal 6 end of described DC power circuit 101; 8 pin of the respective one end of the tenth electric capacity C10, the 13 resistance R13, the 15 resistance R15 and integrated voltage comparator IC2 are all connected with input end 7; 4 pin of the respective one end of the 14 resistance R14, the 16 resistance R16 and integrated voltage comparator IC2 are all held with the P2 of AC voltage and are connected; The other end of the other end of the tenth electric capacity C10, the other end of the 13 resistance R13, the 14 resistance R14 is all connected with in-phase signal input end 3 pin of integrated voltage comparator IC2; The other end of the 15 resistance R15, the other end of the 16 resistance R16 are all connected with inversion signal input end 2 pin of integrated voltage comparator IC2; 1 pin of integrated voltage comparator IC2 is connected with output terminal 9.
Known according to embodiment 3, the present embodiment 4 working procedure is identical with embodiment 3.
Described integrated voltage comparator IC1, integrated voltage comparator IC2 adopt intergrated circuit LM393, also can select intergrated circuit TDC393, IR393, LA393, LA6393, MB47393, TA75393, AN6914, upc277c, LM293
Composition graphs 4, Fig. 6 and Fig. 7, those skilled in the art it will be appreciated that the first transient voltage suppressor diode TVS1 described in above-mentioned related embodiment, second transient voltage suppressor diode TVS2 also can with ambipolar transient voltage suppressor diode (Bipolar transient voltage suppression diode), varistor (pressure sensitive resistor), gas discharge tube (gaseous discharge tube), semiconductor discharge tube (thyristor surge suppressors), electrostatic restrains device (Electro-Static discharge), reference diode (Voltage regulator diode) or Transient Voltage Suppressor (Transient Voltage Suppressor) substitute.
Above describe technological scheme of the present invention, all do not depart from substituting of technological scheme essence of the present invention, all should at the scope Inner of claim of the present invention.
Claims (5)
1. one kind has the pulsed alternating current electromagnetic valve of resistance-capacitance depressurization rectification type DC power circuit, comprise pulsed power save unit 100 and conventional AC solenoid valve two part, it is characterized in that: described pulsed power save unit 100 is made up of DC power circuit 101, switching pulse circuit for generating 102, executive circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105, further, input end 5 end of described DC power circuit 101 is held with the P1 of AC voltage and is connected; Input end 7 end of described switching pulse circuit for generating 102 is connected with output terminal 6 end of described DC power circuit 101; One end of described executive circuit 103 is connected with input end 7 end of described switching pulse circuit for generating 102, and the other end is connected with output terminal 9 end of described switching pulse circuit for generating 102; 1 end of described bridge circuit 105 is held with the P1 of AC voltage and is connected, and 2 ends are connected with the contact K1 among described executive circuit 103, and 3 ends, 4 ends are held with the A1 of the field coil L in conventional AC solenoid valve respectively, A2 holds and is connected; Moving together contact K3 among described executive circuit 103 is connected with keeping one end of voltage step-down circuit 104; Keep the break contact K2 among the other end of voltage step-down circuit 104, described DC power circuit 101, executive circuit 103 all to hold with the P2 of AC voltage to be connected;
Wherein, DC power circuit 101 is resistance-capacitance depressurization bridge commutating type DC power circuit, it is made up of input end 5, output terminal 6, the 5th resistance R5, the 6th resistance R6, the 5th electric capacity C5, the 6th electric capacity C6, the 7th diode D7, the 8th diode D8, the 9th diode D9, the tenth diode D10, circuit common E, wherein, the 5th resistance R5, the 5th electric capacity C5 are resistance, hold decompression device; 7th diode D7, the 8th diode D8, the 9th diode D9, the tenth diode D10 consist of rectifier bridge; Their Placement is: input end 5 is held with the P1 of AC voltage and is connected; The negative pole of the 7th diode D7, the positive pole of the 9th diode D9 are all connected with input end 5; The negative pole of the 9th diode D9, the negative pole of the tenth diode D10 are all connected with output terminal 6; The positive pole of the 7th diode D7, the positive pole of the 8th diode D8 are all connected with circuit common E; After 5th electric capacity C5 and the 5th resistance R5 is in parallel, one end is all connected with the negative pole of the 8th diode D8, the positive pole of the tenth diode D10; The other end is held with the P2 of AC voltage and is connected; After 6th electric capacity C6 and the 6th resistance R6 is in parallel, one end is connected with circuit common E; The other end is connected with output terminal 6.
2. there is the pulsed alternating current electromagnetic valve of resistance-capacitance depressurization rectification type DC power circuit as claimed in claim 1, wherein, switching pulse circuit for generating 102 is made up of input end 7, output terminal 9, the 3rd resistance R3, the 4th resistance R4, the second electric capacity C2 and triode T1, and input end 7 is connected with output terminal 6 end of described DC power circuit 101; One end of 3rd resistance R3 is connected with input end 7; One end of the other end and the second electric capacity C2, one end of the 4th resistance R4, the base stage of triode T1 are all connected; The emitter of the other end of the second electric capacity C2, the other end of the 4th resistance R4, triode T1 is all held with the P2 of AC voltage and is connected; The collector electrode of triode T1 is connected with output terminal 9.
3. there is the pulsed alternating current electromagnetic valve of resistance-capacitance depressurization rectification type DC power circuit as claimed in claim 1, described executive circuit 103 is made up of the 6th diode D6, relay, and described relay comprises its line bag J and contact K1, break contact K2, moving together contact K3; Their Placement is: after the 6th diode D6 and relay line bag J is in parallel, its negative pole end is connected with input end 7 end of switching pulse circuit for generating 102, and the other end positive terminal is connected with output terminal 9 end of described switching pulse circuit for generating 102; Contact K1 is connected with 2 ends of bridge circuit 105; Break contact K2 hold with the P2 of AC voltage be connected, moving together contact K3 is connected with keeping one end of voltage step-down circuit 104.
4. there is the pulsed alternating current electromagnetic valve of resistance-capacitance depressurization rectification type DC power circuit as claimed in claim 1, wherein, described maintenance voltage step-down circuit 104 is made up of the 3rd electric capacity C3, its one end is connected with the moving together contact K3 of described executive circuit 103, and the other end is held with the P2 of AC voltage and is connected.
5. there is the pulsed alternating current electromagnetic valve of resistance-capacitance depressurization rectification type DC power circuit as claimed in claim 1, wherein, described bridge circuit 105 is made up of 1 end, 2 ends, 3 ends, 4 ends, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, their Placement is: the negative pole of the second diode D2, the positive pole of the 3rd diode D3 are all connected with 1 end, and 1 end is then held with the P1 of AC voltage and is connected; The negative pole of the 4th diode D4, the positive pole of the 5th diode D5 are all connected with 2 ends, and 2 ends are then connected with the contact K1 in executive circuit 103; The negative pole of the 3rd diode D3, the negative pole of the 5th diode D5 are all connected with 3 ends, and 3 ends are then held with the A1 of field coil L and are connected; The positive pole of the second diode D2, the positive pole of the 4th diode D4 are all connected with 4 ends, and 4 ends are then held with the A2 of field coil L and are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510091278.9A CN104676076A (en) | 2015-04-02 | 2015-04-02 | Pulse type alternating-current solenoid valve with resistive and capacitive voltage reducing rectification type DC (Direct Current) power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510091278.9A CN104676076A (en) | 2015-04-02 | 2015-04-02 | Pulse type alternating-current solenoid valve with resistive and capacitive voltage reducing rectification type DC (Direct Current) power supply circuit |
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| CN104676076A true CN104676076A (en) | 2015-06-03 |
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| CN201510091278.9A Pending CN104676076A (en) | 2015-04-02 | 2015-04-02 | Pulse type alternating-current solenoid valve with resistive and capacitive voltage reducing rectification type DC (Direct Current) power supply circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977099A (en) * | 2016-06-25 | 2016-09-28 | 宁波市镇海华泰电器厂 | Energy-saving AC contactor employing control current |
| CN106057576A (en) * | 2016-06-25 | 2016-10-26 | 宁波市镇海华泰电器厂 | Energy-saving alternating current contactor controlling current multiplexing |
| WO2018121579A1 (en) * | 2016-12-27 | 2018-07-05 | 宁波市镇海华泰电器厂 | Alternating current electromagnet employing half bridge circuit |
-
2015
- 2015-04-02 CN CN201510091278.9A patent/CN104676076A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977099A (en) * | 2016-06-25 | 2016-09-28 | 宁波市镇海华泰电器厂 | Energy-saving AC contactor employing control current |
| CN106057576A (en) * | 2016-06-25 | 2016-10-26 | 宁波市镇海华泰电器厂 | Energy-saving alternating current contactor controlling current multiplexing |
| CN105977099B (en) * | 2016-06-25 | 2018-01-26 | 宁波市镇海华泰电器厂 | Utilize the power-saving alternating-current contactor of control electric current |
| WO2018121579A1 (en) * | 2016-12-27 | 2018-07-05 | 宁波市镇海华泰电器厂 | Alternating current electromagnet employing half bridge circuit |
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