CN202501081U - Silent electromagnetic valve with electricity saving function - Google Patents

Abstract

The utility model relates to a silent electromagnetic valve with an electricity saving function. The silent electromagnetic valve comprises a circuit unit (100) and an alternating current electromagnetic valve, wherein the circuit unit (100) comprises a voltage-controlled switch circuit (101), an energy storage circuit (102) and a rectifying and energy locking circuit (103) which are sequentially connected in series; a first input end (N1) of the circuit unit (100) is connected to the voltage-controlled switch circuit (101), and a second input end (N2) is connected to the rectifying and energy locking circuit (103); a first output end (P1) and a second output end (P2) of the circuit unit (100) are respectively connected to both ends of the energy storage circuit (102); the first input end (N1) and the second input end (N2) are respectively connected with a first end (S1) and a second end (S2) of alternating voltage; and the first output end (P1) and the second output end (P2) are respectively connected with a first end (A1) and a second end (A2) of a magnet exciting coil (L).

Description

Have electricity saving function silent electromagnetic valve concurrently

Technical field

The utility model relates to the solenoid valve field, noiseless and have saving power function " having electricity saving function silent electromagnetic valve concurrently " concurrently when relating in particular to a kind of the operation.

Background technique

Solenoid valve (solenoid valve) is a kind of application low-voltage electrical apparatus very widely, and hydraulic equipment, pneumatic machinery, Motor Vehicle, IC-card water meter, IC-card gas meter, oilling machine, water vendor, refrigerator, drinking machine etc. all are used as performer with it.Its working principle is to utilize electromagnet to drive spool, the purpose that reaches connection, turn-offs the circulation path of medium (liquid or gas) pipeline or change medium.

Fig. 1 is for being used as the fundamental diagram of connecting, turn-offing traditional solenoid valve of medium pipeline.This traditional solenoid valve mainly is made up of field coil, static iron core, Returnning spring, spool, sealing gasket.Its working principle is: exciting voltage U and power supply when the field coil two ends (AC220V, AC110V, AC380V or DC12V, DC24V etc. are to call " excitation power supply " in the following text )During connection, the electromagnetic force that field coil produces is greater than the elastic force of Returnning spring, and the spool band sealing gasket and drawn close to static iron core, last adhesive mutually, and the medium pipeline between A end and the B end just is switched on; When the exciting voltage U at field coil two ends and excitation power supply broke off, the spool loss of excitation also received the effect of Returnning spring and resets, and the medium pipeline between the A end is held with B just is turned off.

In sum, the working procedure of this traditional solenoid valve can be divided into " adhesive ", " sticking " three phases that " resets ":

1, adhesive: field coil and excitation power supply are connected, spool, static iron core adhesive, and pipeline is connected.In this stage, excitation power supply must provide bigger power (being " adhesive power " to call this power in the following text), and spool could be by adhesive;

2, sticking: field coil continues to connect with excitation power supply, and spool, static iron core keep the state of adhesive, and pipeline continues to connect.In this stage, excitation power supply need only provide less power (being " holding power " to call this power in the following text), and spool also can continue adhesive.If in this stage, excitation power supply provides the same big holding power with adhesive power, will cause waste of energy and cause the unnecessary heating up of field coil;

3, reset: field coil breaks off excitation power supply, and spool, static iron core separate, pipeline resets shutoff.

The purposes of solenoid valve varies, and structure also varies, but their working principle is all identical with Fig. 1.

The also available AC power supplies of the both available DC power supply of the excitation power supply of solenoid valve.With the DC power supply is following excellent, the shortcoming of solenoid valve (hereinafter to be referred as DC electromagnetic valve) existence of excitation power supply:

1, have operate steadily, muting advantage;

2, the holding power that provides of DC power supply is the same with adhesive power big, causes waste of energy and causes encouraging

The unnecessary heating up of magnetic coil;

3, must add the DC power supply in addition, increase cost significantly.

Be excellent, the shortcoming below the solenoid valve (hereinafter to be referred as alternating current electromagnetic valve) of excitation power supply also exists with the AC power supplies:

1, convenient: available municipal AC power supplies is as its excitation power supply;

2, heating: in adhesive and sticking stage; Owing to all pass to alternating voltage (being AC voltage) in the magnet exciting coil; Therefore; To produce stagnant magnetic loss, eddy-current loss in spool and the static iron core inevitably and generate heat, magnet exciting coil is brought disaster in the heating of spool and static iron core, can cause magnet exciting coil to burn when serious.For the higher solenoid valve of medium temperature, boiling water solenoid valve for example is with the generation of this type of situation of aggravation.

3, noise: be input to the AC voltage in the field coil; During " zero passage " at every turn (AC voltage by positive half cycle to negative half period or negative half period " Zero Crossing Point ") to positive half cycle transition; Electromagnetic attraction drastic change, can make spool, static iron core produce frequency is the mechanical vibration noise of 100Hz (50Hz Ac) or 120Hz (60Hz Ac).

4, power factor (Power facter) is low: field coil is inductive device, according to the electrology characteristic of inductance, between itself and the AC power supplies energy interchange must take place, and causes power factor low.

Excellent, shortcoming to traditional DC electromagnetic valve and alternating current electromagnetic valve existence; The aim of the utility model is with the traditional solenoid valve of electronics technical innovation; Draw direct current, alternating current electromagnetic valve advantage separately; Overcome their shortcoming, application electric technology, design a kind of electromechanical integration, make the electricity saving function silent electromagnetic valve of having concurrently of excitation power supply with AC power supplies.Objectives are:

1, grasping the starting point of " must having simple and practical ability only and spread for a long time to letter " to smart, design simple as far as possible, a used device of electronic circuit try one's best solenoid valve few, that price is tried one's best honest and clean special-purpose to smart to simple " circuit unit ".

2, should " circuit unit " can be used for transforming the conventional AC solenoid valve of online use, and make these solenoid valves become " noiseless solenoid valve economizes on electricity ";

3, should " circuit unit " also can be integrated in the conventional AC solenoid valve that to produce, the MANUFACTURER of solenoid valve is produced and " circuit unit " incorporate novel " noiseless solenoid valve economizes on electricity ".

The model utility content

In order to reach above-mentioned target; The technological scheme of the utility model design is: a kind ofly have electricity saving function silent electromagnetic valve concurrently; It comprises: circuit unit (100) and alternating current electromagnetic valve two parts, and it is characterized in that: described circuit unit (100) comprising: the pressuring controling switch circuit that is connected in series successively (101), accumulator (102) and rectification and energy latch circuit (103); The first input end (N1) of said circuit unit (100) inserts pressuring controling switch circuit (101), and second input end (N2) connects rectification and energy latch circuit (103); First output terminal (P1) of said circuit unit (100) and second output terminal (P2) insert the two ends of accumulator (102) respectively; Wherein, said first input end (N1) and second input end (N2) are connected first end (S1) and second end (S2) of alternating voltage respectively; Said first output terminal (P1) and second output terminal (P2) are connected first end (A1) and second end (A2) of field coil L respectively.Said pressuring controling switch circuit (101) is made up of ambipolar transient voltage restraining diode (TVS).

The S1 of described AC voltage end, S2 end can the reciprocity connecting ports, and the A1 end of described field coil, the A2 end also can the reciprocity connecting port.

Described pressuring controling switch circuit is made up of ambipolar transient voltage restraining diode (Bipolar transient voltage suppression diode) TVS; The termination input port N1 of described ambipolar transient voltage restraining diode TVS, the other end is connected with described accumulator and described output port P1 end.

Described pressuring controling switch circuit is differentiated the difference of AC voltage and accumulator voltage automatically; When described difference during greater than the breakdown voltage value of ambipolar transient voltage restraining diode TVS; Ambipolar transient voltage restraining diode TVS conducting, otherwise it just ends.

Described ambipolar transient voltage restraining diode TVS can be substituted by mono-polar transient voltage restraining diode (Unipolar type transient voltage suppression diode), piezoresistance (Voltage Dependent Resistor), reference diode (voltage regulator diode) thrin.

Described rectification and energy latch circuit are made up of diode D, and the end of described diode D is connected with described accumulator and described output port P2, and the other end is connected with input port N2.

Described pressuring controling switch circuit and described rectification and energy latch circuit link each other, when rectification and energy latch circuit by the time, pressuring controling switch circuit must end; When the pressuring controling switch circuit conducting, rectification and energy latch circuit must conductings.

Described accumulator is made up of storage capacitor C, and the end of described storage capacitor C is connected with described output port P1, the other end is connected with described output port P2.

Accumulator both also linked with rectification and energy latch circuit with described pressuring controling switch circuit each other, during the pressuring controling switch circuit conducting, and its energy storage of charging; When pressuring controling switch circuit ended, it is released described field coil discharge could; When ability was released in its discharge, rectification and energy latch circuit ended; Rectification that ends and energy latch circuit have locked the energy of accumulator.

The long operation result of theory analysis and experimental prototype all proves, uses the utility model, can obtain following beneficial effect:

1, inexpensive.Be used to improve extremely smart " circuit unit " to letter of conventional AC magnetic valve performance in the utility model, three electronic components are only arranged, overall cost is less than 0.5 yuan.Only spend 0.5 yuan, just can make the conventional AC solenoid valve promote " noiseless solenoid valve economizes on electricity " for premium properties.

2, thing is beautiful.The volume of above-mentioned three electronic components is all less, can they be integrated into the inside of conventional AC solenoid valve, manufactures the economize on electricity silence type solenoid valve incorporate, that outward appearance is pleasing.

3, reliable.The reliability of electronic product and used number of electric parts are inversely proportional to, and price is directly proportional with used number of electric parts.Used electronic device is many, and electronic circuit is complicated, just means that reliability is low, price is high.The used electronic device of the utility model is few, and therefore, not only at the bottom of the cost, and reliability is high;

4, noiseless.Conventional AC solenoid valve noise height has been undisputable fact, and personnel have greatly reached nothing to be surprised at, the stage of facing the fearful with no fears to conventional AC solenoid valve noise in the industry.The utility model can be accomplished noiseless, even in the dead of night, also can't hear noise, makes the onlooker express one's surprise, wonder, etc in fact.

5, powerful adhesive.The field current that in field coil, flows during the adhesive of conventional AC solenoid valve is gradual simple sinusoidal alternating current, and the utility model is the impulsive current of sudden change.Therefore, conventional AC solenoid valve adhesive action is slow, sound is dull; The utility model adhesive action is strong and powerful, clear.The utility model is because adhesive is powerful, so can increase reliability and complicated " guide electromagnetic valve " of available its replacement structure that solenoid valve opens and cuts out.

7, saving power.In following " embodiment ", also will set forth the reason of the utility model saving power in theory; Measured result shows that also the electric energy of the utility model apparen power is greater than 65%.

Description of drawings

Fig. 1 is the fundamental diagram of solenoid valve;

Fig. 2 is the functional-block diagram of the utility model;

Fig. 3 is embodiment 1 circuit theory diagrams;

Fig. 4 a is embodiment 1 charging current I ₀Timing chart;

Fig. 4 b is the oscillogram of AC voltage;

Fig. 5 is embodiment 2 circuit theory diagrams;

Embodiment

Below in conjunction with accompanying drawing, the mode of execution of the utility model is described.

Fig. 2 is the functional-block diagram of the utility model, and Fig. 3 is embodiment 1 circuit theory diagrams.Dashed rectangle 100 is the circuit unit of the utility model among the figure; L is the field coil of conventional AC solenoid valve; I0 is a charging current; P1 and P2 are two output ports of circuit unit 100; N1 and N2 are two input ports of circuit unit 100; 101 is pressuring controling switch circuit; 102 is accumulator; 103 are rectification and energy latch circuit; U is the momentary value of the AC voltage of municipal Alternating Current Power Supply net; Ic1 is the charging current of storage capacitor; Ic1 is the discharge current of storage capacitor; IL is the field current of field coil.

In conjunction with Fig. 2; Present embodiment 1 comprises circuit unit 100 and conventional AC solenoid valve; It is characterized in that: circuit unit 100 is one four port networks, and it is made up of after being in series successively input port N1, pressuring controling switch circuit 101, output port P1, accumulator 102, output port P2, rectification and energy latch circuit 103, input port N2; And described input port N1, input port N2 are connected with the S1 of AC voltage end, S2 end respectively, and described output port P1, output port P2 are connected with A1 end, the A2 end of the field coil L of conventional AC solenoid valve respectively; Described accumulator 102 is in parallel with described field coil L.

It will be apparent to those skilled in the art: the S1 of described AC voltage end, S2 end can the reciprocity connecting ports, and the A1 end of described field coil L, the A2 end also can the reciprocity connecting port.

In conjunction with Fig. 2, Fig. 3:

Described pressuring controling switch circuit 101 is made up of ambipolar transient voltage restraining diode TVS, the termination input port N1 of described TVS, and the other end is connected with described accumulator 102 and described output port P1 end.

Described ambipolar transient voltage restraining diode TVS differentiates the difference of AC voltage and accumulator 102 voltage automatically; When described difference during greater than the breakdown voltage value of ambipolar transient voltage restraining diode TVS; Ambipolar transient voltage restraining diode TVS conducting; Otherwise it just ends.

It will be apparent to those skilled in the art: described ambipolar transient voltage restraining diode TVS can be substituted by mono-polar transient voltage restraining diode, piezoresistance, reference diode thrin.

Described accumulator 102 is made up of storage capacitor C, and described storage capacitor C and described field coil L are in parallel, and after their parallel connections, an end is connected with described output port P1, the other end is connected with described output port P2.

Described rectification and energy latch circuit 103 are made up of diode D, and the positive pole of described diode D is connected with described accumulator 102 and described output port P2, and negative pole is connected with input port N2.

In conjunction with Fig. 3, Fig. 4 a-4b, hold the mathematic(al) representation of the AC voltage of input to be from S1, S2:

u=UmSin（ωt＋φ）

In the following formula: u is the momentary value of AC voltage, Um be AC voltage vibration amplitude, ω is the angular frequency of AC voltage, φ is the initial phase angle of AC voltage.

Be concise explanation, suppose initial phase angle φ=0 at present, then the representation of the momentary value u of AC voltage is:

u=UmSinωt

Its waveform is shown in Fig. 4 b.

During t=0, AC voltage is connected, at this moment, because before the connection of AC voltage, storage capacitor C and field coil L discharge all finish, so the voltage U L=0 at field coil L two ends

In conjunction with Fig. 3, the voltage U T=u-UL at ambipolar transient voltage restraining diode TVS two ends

When t=t1, UT=u1-UL=u1-0=u1=UmSin ω t1 if u1=UB (UB is the breakdown voltage of ambipolar transient voltage restraining diode TVS) then: in the time period of 0～t1, UT ＜UB, ambipolar transient voltage restraining diode TVS ends, and its equivalence is open circuit, thus charging current I0=0, the field current IL=0 among Fig. 3, solenoid valve is not worked.

During t=t1, u1=UB, ambipolar transient voltage restraining diode TVS punctures, and is short circuit, and u1 is applied directly between two the output terminal P1 and P2 of circuit unit 100, at this moment:

1, diode D is because of the forward bias conducting;

In conjunction with Fig. 1: before the spool adhesive, owing to there is one section space between spool and the static iron core, the magnetic resistance of magnetic circuit is bigger; Therefore; This moment, the inductance value of field coil L was very little, was about one of two percentages of spool adhesive inductance value afterwards, and it is under the effect of voltage u1; Produced bigger field current IL, spool overcomes resistance and the powerful adhesive of Returnning spring under the effect of magnetic force;

2, charging current I0 charges to storage capacitor C simultaneously;

3, combine Fig. 4 a; In the moment that ambipolar transient voltage restraining diode TVS punctures; Because charging current Ic1, the field current IL of storage capacitor C are all bigger, therefore, have just produced the steep rising edge of the adhesive pulse 111 of the charging current I0 shown in Fig. 4 a.

During t=ta, because the adhesive of spool makes the hurried change of inductance value of field coil L big, cause that field current IL is hurried to diminish, charging current I0 also drops to I0=Ia thereupon hurriedly

In the time period of ta～t2, charging current I0 receives the influence of following two aspects:

1, the input voltage u that increases progressively in time;

2, along with electric current I c1 charges to storage capacitor C constantly, the voltage at storage capacitor C two ends

UL also increases progressively in time fast.

Receive the effect of above two aspects, the I0=I2 the when I0=Ia of charging current I0 during by t=ta drops to t=t2

In the time period of t2～t3, because input voltage u successively decreases in time, therefore, the I0=I3 the when I0=I2 of charging current I0 during by t=t2 drops to t=t3 fast

At input voltage u=u3 and UT=u3-UL ＜When the condition of UB was set up, ambipolar transient voltage restraining diode TVS ended, and equivalence is open circuit, caused charging current I0=0 and had formed the trailing edge of adhesive pulse 111.

In the time period of t3～t41, input voltage u is littler than u3, UT ＜The condition of UB more is prone to set up, and ambipolar transient voltage restraining diode TVS still ends, and therefore, charging current I0 still is I0=0.

In the time period of t41～t42, AC voltage is that S2 end high level, S1 hold low level negative half period, and diode D ends, and charging current I0 must be I0=0.

Analyze so far, can do following brief summary in conjunction with Fig. 4 a-4b:

1, when t=t1, ambipolar transient voltage restraining diode TVS punctures conducting, and spool begins adhesive, when t=ta, and the spool adhesive;

2, after the spool adhesive, solenoid valve gets into the sticking state, and AC voltage continues storage capacitor C, field coil L charging through charging current I0, and when t=t3, ambipolar transient voltage restraining diode TVS turn-offs, and charging finishes.

After ambipolar transient voltage restraining diode TVS shutoff, charging current I0=0, charging finished, solenoid valve relied on storage capacitor C and the stored electric energy maintaining valve wicking of field coil L to hold state, and its process is:

1, combine Fig. 3, at t=t3, ambipolar transient voltage restraining diode TVS shutdown moment, owing to the electric current in the inductance can not suddenly change, so field current IL will continue circulation;

2, storage capacitor C discharges through field coil L, the direction of its discharge current Ic2 and field current IL-cause, and the two complementation is each other kept;

3, as long as select the suitable Capacity of storage capacitor C, its inductance with field coil L matches, and just can obtain sufficiently long LC time constant (time constant) ΥBut, the electric current [strength that makes field current IL in the time period of charging current I0=0, still have enough maintaining valve wickings to hold.

In conjunction with Fig. 4 a-4b, along with the process of discharge, the voltage U L at storage capacitor C two ends will descend.At t=t5 constantly, input voltage u=u5, UT=u5-UL ＞The condition of UB is set up once more, and ambipolar transient voltage restraining diode TVS punctures once more and is short circuit, and charging current I0 is storage capacitor C and field coil L charging makeup energy once more.At this t=t5 constantly; Owing to being consumed, the voltage U L at storage capacitor C two ends reduces to than low value; Therefore, charging current I0=I5 is storage capacitor C and field coil L charging makeup energy with bigger value, thereby forms the precipitous rising edge of complementary energy pulse 112.

Complementary energy pulse 112 is each time period after t=t5, and the working procedure of charging current I0 is similar in the working procedure of each corresponding time period with adhesive pulse 111, here repeated description no longer.

Adhesive pulse 111 is basic identical with the waveform of complementary energy pulse 112, and only pulse front edge is inequality, and the former the last latter that leaps high goes up towards low, causes the reason of this difference to be:

1, ambipolar transient voltage restraining diode TVS punctures conducting moment, and storage capacitor C is different with the state of field coil L, the former, storage capacitor C and field coil L discharge all finish, voltage U L=0; The latter, storage capacitor C and field coil L remain partly energy, UL ≠ 0.Among Fig. 4 a-4b, the difference of input voltage u5 and u1 is exactly the t=t5 value of voltage U L constantly, and the value of this UL also is the reason that present embodiment can still can keep spool " sticking " state at t=t5 constantly;

2, ambipolar transient voltage restraining diode TVS punctures conducting moment, and the inductance value of field coil L is different, the former, spool is adhesive not, and the inductance value of field coil L is little; The latter, spool is adhesive, and the inductance value of field coil L is about the former 200 times.

Cumulated volume embodiment's above-mentioned working procedure combines Fig. 3 again, can draw the following characteristic of present embodiment:

1, ambipolar transient voltage restraining diode TVS is actually-individual votage control switch with identification function.In the adhesive stage, it is differentiated AC voltage of connecting at random automatically: when the momentary value of AC voltage during less than the value of its breakdown voltage UB, it is by not conducting, when the value of the momentary value >=UB of AC voltage, and its conducting; In the sticking stage, its AC voltage and difference of storage capacitor C voltage to input differentiates, when this difference during, its conducting greater than UB, otherwise, just end.

2, described ambipolar transient voltage restraining diode TVS and described diode D link each other, and when diode D ended, ambipolar transient voltage restraining diode TVS must end; When ambipolar transient voltage restraining diode TVS conducting, diode D must conducting.

3, storage capacitor C both also linked with diode D with ambipolar transient voltage restraining diode TVS each other, during ambipolar transient voltage restraining diode TVS conducting, and its energy storage of charging; When ambipolar transient voltage restraining diode TVS ended, it is released described field coil L discharge could; When ability was released in its discharge, diode D ended; The diode D that ends has locked the energy on the storage capacitor C.

Because three circuit, ambipolar in other words transient voltage restraining diode TVS, storage capacitor C, three elements of diode D dexterously, harmoniously work make present embodiment possess three big functions of " economize on electricity ", " noiseless ", " powerful adhesive ".

The check analysis of present embodiment and conventional AC solenoid valve:

One, adhesive

1, present embodiment has selected to have the ambipolar transient voltage restraining diode TVS of suitable breakdown voltage UB; Make t=t1 constantly; Be ambipolar transient voltage restraining diode TVS punctures, input voltage u1 is enough high, field coil L produces magnetic force enough by force, when being enough to forcefully apace the adhesive spool; The present embodiment adhesive of just switching on, otherwise wait for regard to refusal work rises to u up to the value of input voltage ＞Adhesive spool fiercely just during UB.

Therefore present embodiment, can replace structure complicated " guide electromagnetic valve " in some occasion owing to have the characteristic of this " powerful adhesive ".

Say strictly that 2, the pick-up voltage of present embodiment and conventional AC solenoid valve all is at random, it is different and different all to connect interchange momentary value constantly with AC voltage.Before state, the advantage of present embodiment is: the AC voltage to connecting at random has the function of automatic discriminating: when the instantaneous value of AC voltage u=UmSin (ω t+ φ) ＜During UB, the voltage U L=0 of its output; Instantaneous value when AC voltage u=UmSin (ω t+ φ) >=During UB, the voltage U L=u of its output, in other words, no matter when AC voltage is connected, the pick-up voltage of present embodiment all>=UB.

The conventional AC solenoid valve is quite different, and its AC voltage to connection does not at random have the function of discriminating, entirely with " fortune ".Lucky, AC voltage is connected then adhesive forcefully when u=UmSin (ω t+ φ)=Um; Most time then is " unlucky ".If the minimum exciting voltage (being minimum pick-up voltage) that is used to overcome Returnning spring elastic force for u=UmSin (ω t+ φ)=u0 then:

(1), if AC voltage when u=u0, connect, it is with regard to adhesive reluctantly and feebly;

(2), if AC voltage at u ＜Connect during u0, it is with regard to power consumption in vain and can not adhesive, just adhesive reluctantly and feebly when the momentary value of power consumption always to AC voltage rises to u=u0.

Two, noise

1, the conventional AC magnetic valve is in the sticking stage, is input to AC voltage in the magnet exciting coil when " zero passage " (AC voltage by positive half cycle to negative half period or negative half period " zero crossing " to positive half cycle transition), near the instantaneous voltage u zero point ＜U0 (the preceding u0 that stated is the minimum excitation voltage that is used to overcome back-moving spring elastic force); And the electric energy that magnet exciting coil stores exhausts, during the exciting current commutation; Magnetic force is less than the elastic force of back-moving spring; Spool will leave static iron core, but that it has just left is very little-and during segment distance, the instantaneous value u of AC voltage has risen to u ＞U0, then the spool that leaves again by magnetic force retract, spool, static iron core adhesive again.In this process, spool, static iron core can produce the mechanical vibration noise that frequency is 100Hz (50Hz Ac) or 120Hz (60Hz Ac).

Present embodiment is DC operation after diode D rectification, do not have above-mentioned noise, and the selection of component parameters guarantees its stably " sticking " again, and therefore, present embodiment has the premium properties of " noiseless ".

Three, power consumption

1, the conventional AC solenoid valve is alternate current operation, has stagnate magnetic loss, eddy current loss; Present embodiment is a DC operation, does not have the magnetic loss of stagnating, eddy current loss.

2, the conventional AC solenoid valve is all switched in the full-time territory of AC voltage; Present embodiment then does

(1), at the negative half period of AC voltage all by no electric circuit (only this measure, present embodiment are beyond all doubtly than conventional AC solenoid valve power saving 50%);

(2), combine Fig. 4 a-4b: at the positive half cycle of AC voltage, " the adhesive pulse " 111 of present embodiment and the angle of flow Q1 of " complementary energy pulse " 112, Q2 make present embodiment more advance-go on foot the ground power saving all less than 180 °;

3, the field coil of conventional AC solenoid valve is a perceptual device, and power factor is low, and additional line loss is arranged.Time domain outside the present embodiment angle of flow; Ambipolar transient voltage restraining diode TVS, diode D all end; During storage capacitor C and magnet exciting coil L charging the energy of gained entirely by " lock " in inside; And noenergy exchange between AC power supplies, power factor (PF) → 1 does not exist because of the low and additional line loss of power factor (PF).

Fig. 5 is embodiment 2 circuit theory diagrams.

Present embodiment 2 comprises circuit unit 100 and conventional AC solenoid valve; It is characterized in that: described circuit unit 100 is one four port networks, and it is made up of after connecting successively input port N1, ambipolar transient voltage restraining diode TVS, output port P1, storage capacitor C, output port P2, diode D, input port N2; Its input port N1 is connected with the S1 end of AC voltage, input port N2 is connected with the S2 end of AC voltage, output port P1 is connected with the A1 end of the field coil of conventional AC solenoid valve, output port P2 is connected with the A2 end of described field coil; The termination output port P1 of storage capacitor C, another termination output port P2.

Present embodiment 2 contrasts with embodiment 1, and the change part is:

1, the polarity of diode D changes that positive pole meets input port N2, negative pole meets output port P2 into, and the polarity of its polarity and diode D among the embodiment 1 in the line is opposite;

2, the direction of the charging current Ic1 of pulse charging current I0, storage capacitor C, discharge current Ic2 and field current IL also correspondingly with embodiment 1 in the opposite direction.

Those skilled in the art is clear, and after the change, present embodiment 2 working principles, working procedure are still identical with embodiment 1 more than doing.

More than set forth the technological scheme of the utility model, all technology that do not break away from the technological scheme essence of the utility model substitute, all should be in the scope of the claim of the utility model.

Claims (3)

1. one kind has electricity saving function silent electromagnetic valve concurrently, and it comprises: circuit unit (100) and alternating current electromagnetic valve two parts is characterized in that:

Described circuit unit (100) comprising: the pressuring controling switch circuit that is connected in series successively (101), accumulator (102) and rectification and energy latch circuit (103); The first input end (N1) of said circuit unit (100) inserts pressuring controling switch circuit (101), and second input end (N2) connects rectification and energy latch circuit (103); First output terminal (P1) of said circuit unit (100) and second output terminal (P2) insert the two ends of accumulator (102) respectively; Wherein,

Said first input end (N1) and second input end (N2) are connected first end (S1) and second end (S2) of alternating voltage respectively; Said first output terminal (P1) and second output terminal (P2) are connected first end (A1) and second end (A2) of field coil L respectively.

2. as claimed in claim 1ly have electricity saving function silent electromagnetic valve concurrently, it is characterized in that:

Said pressuring controling switch circuit (101) is made up of ambipolar transient voltage restraining diode (TVS); Said accumulator (102) is made up of capacitor (C); Said rectification and energy latch circuit (103) are made up of diode (D); And the negative pole of said diode (D) connects said capacitor (C), its anodal second input end (N2) that connects.

3. as claimed in claim 1ly have electricity saving function silent electromagnetic valve concurrently, it is characterized in that:

First end of described alternating voltage and second end are the reciprocity connecting port, and first end of described field coil (L) and second end also are the reciprocity connecting port.

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