CN104595557A - Resistance-capacitance voltage reduction type power-saving and noise-reducing alternating current electromagnetic valve - Google Patents
Resistance-capacitance voltage reduction type power-saving and noise-reducing alternating current electromagnetic valve Download PDFInfo
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- CN104595557A CN104595557A CN201510091365.4A CN201510091365A CN104595557A CN 104595557 A CN104595557 A CN 104595557A CN 201510091365 A CN201510091365 A CN 201510091365A CN 104595557 A CN104595557 A CN 104595557A
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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
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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Abstract
The invention discloses a resistance-capacitance voltage reduction type power-saving and noise-reducing alternating current electromagnetic valve which comprises a power-saving unit 100 and a conventional alternating current electromagnetic valve, and is characterized in that the power-saving unit 100 consists of an AC-DC conversion circuit 101, a switch pulse generation circuit 102, a switch circuit 103, a sustaining voltage reduction circuit 104 and a bridge circuit 105; the AC-DC conversion circuit 101 is a resistance-capacitance voltage reduction type conversion 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 the alternating current electromagnetic valve of noise elimination " the resistance-capacitance depressurization type economize on electricity ".
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 2 mouthfuls, 4 mouthfuls and 5 mouthfuls, end.
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;
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 " power save unit " of noise elimination;
2, should " power save unit " can be used for transforming the online conventional AC solenoid valve used, making these alternating current electromagnetic valves rise Grade becomes " alternating current electromagnetic valve of economize on electricity noise elimination ";
3, should " 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 " alternating current electromagnetic valve of the noise elimination that economizes on electricity " integrated with " power save unit ".
Summary of the invention
In order to reach above-mentioned target, the technological scheme of the present invention's design is: a kind of alternating current electromagnetic valve of the noise elimination that economizes on electricity, comprise power save unit 100 and conventional AC solenoid valve two part, it is characterized in that: described power save unit 100 is made up of AC-DC conversion circuit 101, switching pulse circuit for generating 102, switching circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105, further, input end 5 end of described AC-DC conversion 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 AC-DC conversion circuit 101; Input end 9 end of described switching circuit 103 is connected with output terminal 8 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, 2 ends are all connected with described switching circuit 103, described maintenance voltage step-down circuit 104, 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; Described AC-DC conversion circuit 101, switching pulse circuit for generating 102, switching circuit 103, maintenance voltage step-down circuit 104 are all held with the P2 of AC voltage and are connected.
Described AC-DC conversion circuit 101 has the circuit structure of following three kinds of patterns:
(a), dual 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 voltagesuppression diode) and the second transient voltage suppressor diode TVS2, their Placement is: input end 5 is held with the P1 of AC voltage and is connected; The positive pole of the first diode D1 is connected with input end 5, and negative pole is connected with one end of the first resistance R1; The other end of the first resistance R1 is connected with the negative pole of the first transient voltage suppressor diode TVS1; After first electric capacity C1 and the second resistance R2 is in parallel, its positive terminal is all connected with the positive pole of the first transient voltage suppressor diode TVS1, the negative pole of the second transient voltage suppressor diode TVS2, 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 connected with output terminal 6.
The breakdown voltage U of the first transient voltage suppressor diode TVS1
b1for the first threshold of described AC-DC conversion circuit 101, when the momentary value of the random AC voltage connected is greater than described first threshold, the first described transient voltage suppressor diode TVS1 conducting, otherwise, when the momentary value of AC voltage is less than described first threshold, the first described transient voltage suppressor diode TVS1 ends; The breakdown voltage U of the second transient voltage suppressor diode TVS2
b2for the Second Threshold of described AC-DC conversion circuit 101, when voltage between the positive pole and negative pole of the first electric capacity C1 is higher than described Second Threshold, the second described transient voltage suppressor diode TVS2 conducting, otherwise, when voltage between the positive pole and negative pole of the first electric capacity C1 is lower than described Second Threshold, the second described transient voltage suppressor diode TVS2 ends.
(b), single 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, 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.
(c), resistance, appearance voltage-dropping type; Be made up of input end 5, output terminal 6, the 7th diode D7, the 7th resistance R7, the second resistance R2, the first electric capacity C1, the 4th electric capacity C4, the 3rd transient voltage suppressor diode TVS3, their Placement is: input end 5 is held with the P1 of AC voltage and is connected; After 4th electric capacity C4 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 7th diode D7, the negative pole of the 3rd transient voltage suppressor diode TVS3; 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 positive pole of the 3rd transient voltage suppressor diode TVS3 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, 3rd transient voltage suppressor diode TVS3 all can with ambipolar transient voltage suppressor diode (Bipolartransient voltage suppression diode), varistor (pressure sensitiveresistor), gas discharge tube (gaseous discharge tube), semiconductor discharge tube (thyristorsurge suppressors), electrostatic restrains device (Electro-Static discharge), or Transient Voltage Suppressor (Transient Voltage Suppressor) substitutes.
Described switching pulse circuit for generating 102 has the circuit structure of following three kinds of patterns:
(a), triode type: be made up of input end 7, output terminal 8, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the second electric capacity C2 and triode T1, their Placement is: input end 7 is connected with output terminal 6 end of described AC-DC conversion circuit 101; One end of 3rd resistance R3, one end of the 5th resistance R5 are all connected with input end 7; The other end of the 3rd resistance R3 is all connected with one end of the second electric capacity C2, one end of the 4th resistance R4, the base stage of triode T1; 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, the other end of the 5th resistance R5 are all connected with output terminal 8; 6th resistance R6 one end is connected with output terminal 8, and the other end is held with the P2 of AC voltage and is connected.
(b), integrated circuit type I type: be made up of input end 7, output terminal 8, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the 11 resistance R11, the 12 resistance R12, the 5th electric capacity C5 and integrated voltage comparator IC1, their Placement is: input end 7 is connected with output terminal 6 end of described AC-DC conversion circuit 101; One end of 8th resistance R8, one end of the tenth resistance R10, one end of the 12 resistance R12,8 pin of integrated voltage comparator IC1 are all connected with input end 7; 4 pin of one end of the 9th resistance R9, one end of the 11 resistance R11, integrated voltage comparator IC1, one end of the 5th electric capacity C5 are all held with the P2 of AC voltage and are connected; The other end of the other end of the 8th resistance R8, the other end of the 9th resistance R9, the 5th electric capacity C5 is all connected with inversion signal input end 2 pin of integrated voltage comparator IC1; The other end of the tenth resistance R10, the other end of the 11 resistance R11 are all connected with in-phase signal input end 3 pin of integrated voltage comparator IC1; The other end of the 12 resistance R12 is then all connected with 1 pin of integrated voltage comparator IC1, output terminal 8.
(C), integrated circuit type II type: be made up of input end 7, output terminal the 8, the 13 resistance R13, the 14 resistance R14, the 15 resistance R15, the 16 resistance R16, the 17 resistance R17, the 6th electric capacity C6 and integrated voltage comparator IC1, their Placement is: input end 7 is connected with output terminal 6 end of described AC-DC conversion circuit 101; 8 pin of the respective one end of the 6th electric capacity C6, the 13 resistance R13, the 15 resistance R15, the 17 resistance R17 and integrated voltage comparator IC1 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 IC1 are all held with the P2 of AC voltage and are connected; The other end of the other end of the 6th electric capacity C6, 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 IC1; 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 IC1; The other end of the 17 resistance R17,1 pin of integrated voltage comparator IC1 are all connected with output terminal 8.
Described switching circuit 103 is made up of input end 9 end, the 6th diode D6 and field effect transistor FET (FieldEffect Transistor), and input end 9 end is connected with output terminal 8 end of described switching pulse circuit for generating 102; The positive pole of the 6th diode D6 is connected with 2 ends of bridge circuit 105; Negative pole is connected with the drain electrode of field effect transistor FET; The grid of field effect transistor FET is connected with input end 9 end, and source electrode is held with the P2 of AC voltage and is connected.
Described field effect transistor FET can with other switching devices such as unidirectional thyristor (SiliconControlled Rectifier, SCR), bidirectional thyristor (Triode AC Switch, TRIAC), insulated gate bipolar transistor (Insulatend Gate Bipolar Transistor, IGBT), electron injection enhancement gate transistor (Injection Enhanced Gate Tansistor, IEGT), static induced thyristor (Static Induction Thyristor, SITH) replaces.
Described maintenance voltage step-down circuit 104 is made up of the 3rd electric capacity C3, and its one end is connected with 2 ends of bridge circuit 105, 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 positive pole of the 6th diode D6 in switching circuit 103, one end homogeneous phase of the 3rd electric capacity C3 kept in voltage step-down circuit 104; 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 1.4W, and electric energy reaches 96%, 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;
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 is the circuit theory diagrams of embodiment 5;
Fig. 9 a is the oscillogram of AC voltage;
Fig. 9 b is the V1 voltage oscillogram of embodiment 1:
Fig. 9 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 alternating current electromagnetic valve of the noise elimination that economizes on electricity, comprise power save unit 100 and conventional AC solenoid valve two part, it is characterized in that: described power save unit 100 is made up of AC-DC conversion circuit 101, switching pulse circuit for generating 102, switching circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105, further, input end 5 end of described AC-DC conversion 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 AC-DC conversion circuit 101; Input end 9 end of described switching circuit 103 is connected with output terminal 8 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, 2 ends are all connected with described switching circuit 103, described maintenance voltage step-down circuit 104, 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; Described AC-DC conversion circuit 101, switching pulse circuit for generating 102, switching circuit 103, maintenance voltage step-down circuit 104 are all held with the P2 of AC voltage and are 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 and the second transient voltage suppressor diode TVS2 constitute the AC-DC conversion circuit 101 of dual threshold type; Their Placement is: input end 5 is held with the P1 of AC voltage and is connected; The positive pole of the first diode D1 is connected with input end 5, and negative pole is connected with one end of the first resistance R1; The other end of the first resistance R1 is connected with the negative pole of the first transient voltage suppressor diode TVS1; After first electric capacity C1 and the second resistance R2 is in parallel, its positive terminal is all connected with the positive pole of the first transient voltage suppressor diode TVS1, the negative pole of the second transient voltage suppressor diode TVS2, 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 connected with output terminal 6.
Input end 7, output terminal 8, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the second electric capacity C2 and triode T1 constitute the switching pulse circuit for generating 102 of triode type; Their Placement is: input end 7 is connected with output terminal 6 end of the AC-DC conversion circuit 101 of described dual threshold type; One end of 3rd resistance R3, one end of the 5th resistance R5 are all connected with input end 7; The other end of the 3rd resistance R3 is all connected with one end of the second electric capacity C2, one end of the 4th resistance R4, the base stage of triode T1; 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, the other end of the 5th resistance R5 are all connected with output terminal 8; 6th resistance R6 one end is connected with output terminal 8, and the other end is held with the P2 of AC voltage and is connected.
Input end 9 end, the 6th diode D6 and field effect transistor FET constitute switching circuit 103; Further, input end 9 end is connected with output terminal 8 end of the switching pulse circuit for generating 102 of described triode type; The positive pole of the 6th diode D6 is connected with 2 ends of bridge circuit 105; Negative pole is connected with the drain electrode of field effect transistor FET; The grid of field effect transistor FET is connected with input end 9 end, and source electrode is held with the P2 of AC voltage and is connected.
Those skilled in the art it will be appreciated that, described field effect transistor FET can with other switching devices such as unidirectional thyristor (Silicon Controlled Rectifier, SCR), bidirectional thyristor (TriodeAC Switch, TRIAC), insulated gate bipolar transistor (Insulatend Gate BipolarTransistor, IGBT), electron injection enhancement gate transistor (Injection Enhanced GateTansistor, IEGT), static induced thyristor (Static Induction Thyristor, SITH) replaces.
3rd electric capacity C3 constitutes and keeps voltage step-down circuit 104, and its one end is connected with 2 ends of bridge circuit 105, 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 positive pole of the 6th diode D6 in switching circuit 103, one end homogeneous phase of the 3rd electric capacity C3 kept in voltage step-down circuit 104; 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 AC-DC conversion circuit 101 of the present embodiment 1 is the AC-DC conversion circuit of dual threshold type, the breakdown voltage U of the first transient voltage suppressor diode TVS1
b1for its first threshold, when the momentary value of the random AC voltage connected is greater than described first threshold, the first described transient voltage suppressor diode TVS1 conducting, otherwise, when the momentary value of AC voltage is less than described first threshold, the first described transient voltage suppressor diode TVS1 ends; The breakdown voltage U of the second transient voltage suppressor diode TVS2
b2for its Second Threshold, when voltage between the positive pole and negative pole of the first electric capacity C1 is higher than described Second Threshold, the second described transient voltage suppressor diode TVS2 conducting, otherwise, when voltage between the positive pole and negative pole of the first electric capacity C1 is lower than described Second Threshold, the second described transient voltage suppressor diode TVS2 ends.
Composition graphs 4, Fig. 9 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 illustrated in fig. 9.
Composition graphs 4, Fig. 9 a, Fig. 9 b, Fig. 9 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 first threshold 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=t3, 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 t3 ~ t4, t4 ~ t01, t01 ~ t02, t02 ~ t5 time domain and corresponding time domain thereof, and its value is successively decreased;
2, voltage V1 is in t5 ~ t6 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 9b.
Composition graphs 4, Fig. 9 b, Fig. 9 b, in the time domain of t1 ~ t2, the value of voltage V1 is less than Second Threshold U
b2i.e. V1 < U
b2, the second transient voltage suppressor diode TVS2 ends, voltage V2=0
During t=t2, V1=U
b2, the second transient voltage suppressor diode TVS2 conducting, the value of voltage V2 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 is high level, namely output terminal 8 end of the switching pulse circuit for generating 102 of triode type exports high level, field effect transistor FET conducting in described switching circuit 103, solenoid valve enters " promotion " stage, AC voltage is when P1 end is held as low level positive half cycle for high level P2, to hold along P1-1 end-D3-3 end-A1 end-L-A2 holds " the promotion power " of input solenoid valve promotion in path needed for spool of-4 ends-D4-2 end-D6-FET-P2 end.Because in above-mentioned path, the 3rd diode D3, the 4th diode D4, the 6th diode D6 and field effect transistor FET 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=t9, along with the process that V2 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, i.e. the output terminal 8 end output low level of the switching pulse circuit for generating 102 of triode type, field effect transistor FET in switching circuit 103 ends, 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-C3-P2 end to provide maintenance power for solenoid valve along P1; Be low level AC voltage negative half cycle at P2 end for high level P1 holds, AC voltage holds-4 ends-D2-1 end along P2 end-C3-2 end-D5-3 end-A1 end-L-A2---and the path of P1 end provides maintenance power 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=t14, AC voltage turns off, and solenoid valve enters " reset " stage, and " spool " retreats to original position.
Composition graphs 9c, the output voltage Vc of the switching pulse circuit for generating 102 of described triode type is pulsed voltage, and t2 ~ t9 time domain is the time domain that pulse " accounts for ", and it exports high level; T9 ~ t14 time domain is the time domain of pulse " sky ", its output low level, and its pulse shape as is shown in fig. 9 c.
In sum; The working procedure of the present embodiment can be divided into following three phases:
1, t2 ~ t9 time domain is the promotion stage, and in this t2 ~ t9 time domain, pulsed voltage Vc is high level, field effect transistor FET conducting, and with it for main passage, AC voltage input solenoid valve promotes larger " promotion power " needed for spool;
2, t9 ~ t14 time domain is the maintenance stage, and in this t9 ~ t14 time domain, pulsed voltage Vc is low level, and field effect transistor FET ends, and AC voltage is inputted less " maintenance power " by the 3rd electric capacity C3;
3, t14 ~ t15 time domain is reseting stage, and in this t14 ~ t15 time domain, the power-off of AC voltage, power save unit 100 and solenoid valve all reset.
During t=t15, AC voltage recloses, solenoid valve reenters " promotion ", " maintenance ", " reset " operation cycle in.
Fig. 5 is the circuit theory diagrams of embodiment 2, and its switching pulse circuit for generating 102, switching circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105 are all identical with embodiment 1.But AC-DC conversion circuit 101 is different from embodiment 1, what embodiment 1 adopted is the AC-DC conversion circuit of dual threshold type, the AC-DC conversion circuit of single threshold type that what the present embodiment 2 adopted is.
Composition graphs 5, the AC-DC conversion circuit of the single threshold type of the present embodiment 2 is 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, and 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.
In the present embodiment 2, the breakdown voltage U of the first transient voltage suppressor diode TVS1
b1for the threshold value of the AC-DC conversion circuit 101 of described single threshold type, 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.
The working procedure of the present embodiment 2 is identical with embodiment 1.
Fig. 6 is the circuit theory diagrams of embodiment 3, and its switching pulse circuit for generating 102, switching circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105 are all identical with embodiment 1.But AC-DC conversion circuit 101 is different from embodiment 1, what embodiment 1 adopted is the AC-DC conversion circuit of dual threshold type, and what the present embodiment 3 adopted is resistance, the AC-DC conversion circuit holding voltage-dropping type.
Composition graphs 6, the AC-DC conversion circuit of the resistance that the present embodiment 3 adopts, appearance voltage-dropping type is made up of input end 5, output terminal 6, the 7th diode D7, the 7th resistance R7, the second resistance R2, the first electric capacity C1, the 4th electric capacity C4, the 3rd transient voltage suppressor diode TVS3, and their Placement is: input end 5 is held with the P1 of AC voltage and is connected; After 4th electric capacity C4 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 7th diode D7, the negative pole of the 3rd transient voltage suppressor diode TVS3; 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 positive pole of the 3rd transient voltage suppressor diode TVS3 is also held with the P2 of AC voltage and is connected.
In described resistance, hold in the AC-DC conversion circuit of voltage-dropping type, the 4th electric capacity C4, the 7th resistance R7 play resistance, hold hypotensive effect, and the 7th diode D7 plays rectified action, and the 3rd transient voltage suppressor diode TVS3 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 4th electric capacity C4, and at P2 end for high level P1 holds as low level AC voltage negative half cycle, the 4th electric capacity C4 is discharged by the 3rd described transient voltage suppressor diode TVS3.
The working procedure of the present embodiment 3 is identical with embodiment 1.
Fig. 7 is the circuit theory diagrams of embodiment 4, its switching circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105 are all identical with embodiment 1, the AC-DC conversion circuit 101 of resistance, appearance voltage-dropping type is identical with embodiment 3, but switching pulse circuit for generating 102 is different from embodiment 1, what embodiment 1 adopted is triode type switching pulse circuit for generating, and what the present embodiment 4 adopted is integrated circuit type I type switching pulse circuit for generating.
Composition graphs 7, the integrated circuit type I type switching pulse circuit for generating that the present embodiment 4 adopts is made up of input end 7, output terminal 8, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the 11 resistance R11, the 12 resistance R12, the 5th electric capacity C5 and integrated voltage comparator IC1, and their Placement is: input end 7 and described resistance, output terminal 6 end of AC-DC conversion circuit 101 holding voltage-dropping type are connected; One end of 8th resistance R8, one end of the tenth resistance R10, one end of the 12 resistance R12,8 pin of integrated voltage comparator IC1 are all connected with input end 7; 4 pin of one end of the 9th resistance R9, one end of the 11 resistance R11, integrated voltage comparator IC1, one end of the 5th electric capacity C5 are all held with the P2 of AC voltage and are connected; The other end of the other end of the 8th resistance R8, the other end of the 9th resistance R9, the 5th electric capacity C5 is all connected with inversion signal input end 2 pin of integrated voltage comparator IC1; The other end of the tenth resistance R10, the other end of the 11 resistance R11 are all connected with in-phase signal input end 3 pin of integrated voltage comparator IC1; The other end of the 12 resistance R12 is then all connected with 1 pin of integrated voltage comparator IC1, output terminal 8.
Described integrated voltage comparator IC1 selects intergrated circuit LM393 also can select intergrated circuit TDC393, IR393, LA393, LA6393, MB47393, TA75393, AN6914, upc277c, LM293
The working procedure of the present embodiment 4 is substantially the same manner as Example 1, difference is: the pulsed voltage of input end 9 end of input switching circuit 103, produced by triode T1 in embodiment 1, then produced by integrated voltage comparator IC1 in the present embodiment 4.
Fig. 8 is the circuit theory diagrams of embodiment 5, its switching circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105 are all identical with embodiment 1, the AC-DC conversion circuit 101 of resistance, appearance voltage-dropping type is identical with embodiment 3, but switching pulse circuit for generating 102 is different from embodiment 1, what embodiment 1 adopted is triode 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 8, the integrated circuit type II type switching pulse circuit for generating that the present embodiment 5 adopts is made up of input end 7, output terminal the 8, the 13 resistance R13, the 14 resistance R14, the 15 resistance R15, the 16 resistance R16, the 17 resistance R17, the 6th electric capacity C6 and integrated voltage comparator IC1, and their Placement is: input end 7 is connected with output terminal 6 end of described AC-DC conversion circuit 101; 8 pin of the respective one end of the 6th electric capacity C6, the 13 resistance R13, the 15 resistance R15, the 17 resistance R17 and integrated voltage comparator IC1 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 IC1 are all held with the P2 of AC voltage and are connected; The other end of the other end of the 6th electric capacity C6, 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 IC1; 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 IC1; The other end of the 17 resistance R17,1 pin of integrated voltage comparator IC1 are all connected with output terminal 8.
Known according to embodiment 4, the working procedure of the present embodiment 5 is substantially the same manner as Example 1.
Composition graphs 4 ~ Fig. 8, 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, 3rd transient voltage suppressor diode TVS3 all can with ambipolar transient voltage suppressor diode (Bipolar transient voltagesuppression diode), varistor (pressure sensitive resistor), gas discharge tube (gaseous discharge tube), semiconductor discharge tube (thyristor surgesuppressors), electrostatic restrains device (Electro-Static discharge), or Transient Voltage Suppressor (Transient Voltage Suppressor) substitutes.
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. the alternating current electromagnetic valve of a resistance-capacitance depressurization type economize on electricity noise elimination, comprise power save unit 100 and conventional AC solenoid valve two part, it is characterized in that: described power save unit 100 is made up of AC-DC conversion circuit 101, switching pulse circuit for generating 102, switching circuit 103, maintenance voltage step-down circuit 104, bridge circuit 105, further, input end 5 end of described AC-DC conversion 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 AC-DC conversion circuit 101; Input end 9 end of described switching circuit 103 is connected with output terminal 8 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, 2 ends are all connected with described switching circuit 103, described maintenance voltage step-down circuit 104, 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; Described AC-DC conversion circuit 101, switching pulse circuit for generating 102, switching circuit 103, maintenance voltage step-down circuit 104 are all held with the P2 of AC voltage and are connected;
Described AC-DC conversion circuit 101 is resistance-capacitance depressurization type conversion circuit, and it is made up of input end 5, output terminal 6, the 7th diode D7, the 7th resistance R7, the second resistance R2, the first electric capacity C1, the 4th electric capacity C4, the 3rd transient voltage suppressor diode TVS3;
Wherein, input end 5 is held with the P1 of AC voltage and is connected; After 4th electric capacity C4 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 7th diode D7, the negative pole of the 3rd transient voltage suppressor diode TVS3; 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 positive pole of the 3rd transient voltage suppressor diode TVS3 is also held with the P2 of AC voltage and is connected.
2. the alternating current electromagnetic valve of resistance-capacitance depressurization type economize on electricity noise elimination as claimed in claim 1, is characterized in that:
Described switching pulse circuit for generating 102 is made up of input end 7, output terminal 8, the 3rd resistance R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the second electric capacity C2 and triode T1, and their Placement is: input end 7 is connected with output terminal 6 end of described AC-DC conversion circuit 101; One end of 3rd resistance R3, one end of the 5th resistance R5 are all connected with input end 7; The other end of the 3rd resistance R3 is all connected with one end of the second electric capacity C2, one end of the 4th resistance R4, the base stage of triode T1; 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, the other end of the 5th resistance R5 are all connected with output terminal 8; 6th resistance R6 one end is connected with output terminal 8, and the other end is held with the P2 of AC voltage and is connected.
3. the alternating current electromagnetic valve of resistance-capacitance depressurization type economize on electricity noise elimination as claimed in claim 1 or 2, is characterized in that:
Described switching circuit 103 is made up of input end 9 end, the 6th diode D6 and field effect transistor FET (Field Effect Transistor), and input end 9 end is connected with output terminal 8 end of described switching pulse circuit for generating 102; The positive pole of the 6th diode D6 is connected with 2 ends of bridge circuit 105; Negative pole is connected with the drain electrode of field effect transistor FET; The grid of field effect transistor FET is connected with input end 9 end, and source electrode is held with the P2 of AC voltage and is connected.
4. the alternating current electromagnetic valve of the resistance-capacitance depressurization type economize on electricity noise elimination as described in claim 1 or 2 or 3, is characterized in that:
Described maintenance voltage step-down circuit 104 is made up of the 3rd electric capacity C3, and its one end is connected with 2 ends of bridge circuit 105, and the other end is held with the P2 of AC voltage and is connected.
5. as claimed in claim 1 or 2 or 3 or 4 resistance-capacitance depressurization type economize on electricity noise elimination alternating current electromagnetic valve, it is characterized in that:
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 positive pole of the 6th diode D6 in switching circuit 103, one end homogeneous phase of the 3rd electric capacity C3 kept in voltage step-down circuit 104; 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.
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| CN106783009A (en) * | 2016-12-27 | 2017-05-31 | 宁波市镇海华泰电器厂 | Using the alternating electromagnet of accumulator |
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| CN106783011A (en) * | 2016-12-27 | 2017-05-31 | 宁波市镇海华泰电器厂 | Using the alternating electromagnet of half-bridge circuit |
| CN112393006A (en) * | 2019-08-13 | 2021-02-23 | 喜开理株式会社 | Solenoid valve manifold |
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| CN112393006B (en) * | 2019-08-13 | 2022-07-22 | 喜开理株式会社 | Solenoid valve manifold |
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