CN202349357U - Solenoid valve and solenoid valve system - Google Patents
Solenoid valve and solenoid valve system Download PDFInfo
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- CN202349357U CN202349357U CN2011205089780U CN201120508978U CN202349357U CN 202349357 U CN202349357 U CN 202349357U CN 2011205089780 U CN2011205089780 U CN 2011205089780U CN 201120508978 U CN201120508978 U CN 201120508978U CN 202349357 U CN202349357 U CN 202349357U
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Abstract
The utility model provides a solenoid valve and a solenoid valve system. The solenoid valve comprises a valve body provided with a valve cavity, wherein one end of the valve body is provided with a medium inlet communicated with the valve cavity, and the other end of the valve body is provided with a medium outlet communicated with the valve cavity. The solenoid valve further comprises a valve motion sheet and a first iron core fixed at one end of the medium outlet of the valve body and wound with a first coil, wherein a first supporting post extending to the valve cavity is arranged at one end of the medium outlet of the valve body; through holes communicated with the medium outlet and the valve cavity are respectively arranged on the first supporting post; the valve motion sheet is located in the valve cavity; the valve motion sheet is pressed on the first supporting post under the effect of a pressure difference between an internal medium and an external medium of the valve cavity, so as to form a sealing pair with the first supporting post; a gap is reversed between the valve motion sheet and the first iron core; and the first coil drives the valve motion sheet to rotate around a supporting point of the valve motion sheet after being electrified, so that one end of the valve motion sheet is away from the first supporting post, and the other end of the valve motion sheet is attracted by electromagnetic force on the first iron core. With the adoption of the solenoid valve and the solenoid valve system provided by the utility model, the working frequency and the service life of the solenoid valve can be improved.
Description
Technical field
The utility model relates to the electromagnetic equipment technical field, relates to a kind of solenoid valve and solenoid valve system in particular.
Background technique
Solenoid valve is to utilize electromagnetic effect to realize the industry equipment of control function, a kind of for valve, and its working principle is the electromagnetic force that produces through electromagnetic coil energising back, comes the unlatching of control electromagnetic valve or closes, mobile with this control flows body medium.
Existing solenoid valve generally includes valve body, valve seat, valve actuation sheet that is provided with valve pocket and the electromagnet that is formed by coil and iron core, and wherein, valve body is provided with medium inlet and the media outlet that communicates with valve pocket; Electromagnet is fixed on the side that valve body is provided with the medium inlet; Valve seat is fixed on the side that valve body is provided with media outlet, and this valve seat is provided with through hole, communicates with valve pocket and valve body media outlet respectively; Valve actuation sheet and this valve seat constitute sealing pair.Because valve actuation sheet both sides all have medium to exist, when solenoid valve was not switched on, under the differential pressure action of medium inside and outside the valve pocket, the valve actuation sheet tightly was pressed on the valve seat, and valve seat through-hole is blocked, and has sealed the valve body media outlet, and solenoid valve is in closed condition; After the solenoid valve energising, electromagnet produces electromagnetic force, and the valve actuation sheet receives the electromagnetic force effect to belong to a side shifting to electromagnet, and through hole is opened, and makes that medium is able to flow out from the outlet of valve seat, and solenoid valve is in opening state; After the solenoid valve outage, the valve actuation sheet resets, and the medium differential pressure effect moves to valve seat again and belongs to a side inside and outside valve pocket, is pressed on the valve seat again.
Can find out that by foregoing description existing solenoid valve is the break-make electricity through electromagnet, the control valve moving plate move the opening and closing that realize solenoid valve.But through moving of valve actuation sheet, the opening and closing of the solenoid valve of realization are consuming time longer; Particularly in valve actuation sheet reseting procedure, under the pressure medium effect, from valve body medium inlet one side shifting to valve body being set, that the displacement distance of media outlet one side is set is longer; Make resetting time longer, closed electromagnetic valve speed is slower, thereby has increased the time of an operation cycle of solenoid valve; And influenced the frequency of okperation of solenoid valve; And because solenoid valve is longer resetting time, cause the medium cut-off velocity slack-off, cause the unnecessary loss of medium easily.
The model utility content
In view of this, the utility model provides a kind of solenoid valve and solenoid valve system, in order to solve the lower problem of solenoid valve frequency of okperation in the existing technology.
For realizing above-mentioned purpose, the utility model provides following technological scheme:
A kind of solenoid valve; Comprise the valve body that is provided with valve pocket, said valve body one end is provided with the medium inlet that communicates with said valve pocket, and the other end is provided with the media outlet that communicates with said valve pocket; Also comprise the valve actuation sheet; Be fixed on valve body media outlet one end and be wound with first iron core of first coil, wherein
Said valve body media outlet one end is provided with first pillar that extends to valve pocket, and said first pillar is provided with the through hole that communicates with said media outlet and valve pocket respectively;
Said valve actuation sheet is arranged in valve pocket, is being pressed under the medium differential pressure effect inside and outside the valve pocket on said first pillar, constitutes sealing pair with said first pillar, and and said first iron core between have the gap;
Said first coil produces under "on" position said valve actuation sheet is rotated along its fulcrum, and then an end of said valve actuation sheet is inhaled from said first pillar, and the other end is adsorbed on the electromagnetic force on said first iron core.
Preferably, said first pillar is specially the iron core that is fixed in the valve body and is wound with second coil;
Said first coil switches the electric switch of break-make and is connected power supply through realizing both with second coil.
Preferably, said first pillar is specially the iron core that is fixed in the valve body and is wound with second coil;
Said second coil with the blocking-up forward current diode connect after, be connected in the said first coil two ends in parallel.
Preferably, the said second coil two ends shunt capacitance.
Preferably, said valve body comprises the first sub-valve body and the second sub-valve body that forms valve pocket after the sealed butt joint;
Said medium inlet is arranged in the first sub-valve body, and said first pillar, first iron core and media outlet are arranged in the second sub-valve body.
Preferably, said valve actuation sheet is the bending moving plate, and the inflection point is positioned on said first pillar;
Under medium differential pressure effect inside and outside the valve pocket, said valve actuation sheet is a fulcrum with said first pillar, is upturned near an end of said first iron core.
Preferably, said valve body media outlet one end also is provided with and extends to valve pocket, and second pillar between said first pillar and first iron core;
Said valve actuation sheet is being pressed under the medium differential pressure effect inside and outside the valve pocket on said first pillar and second pillar.
Preferably, said valve actuation sheet is the bending moving plate, and the inflection point is positioned on said second pillar;
Under medium differential pressure effect inside and outside the valve pocket, said valve actuation sheet is a fulcrum with said second pillar, is upturned near said first iron core, one end.
Preferably, said valve actuation sheet is straight moving plate, and said first iron core intersects towards the summit of valve pocket one end and the line and said second pillar of said first pillar between the summit of valve pocket one end, said valve actuation sheet specifically with said second pillar as its fulcrum.
Preferably, the said first coil two ends are in series with the diode of blocking-up back current.
Preferably, said first iron core and said second pillar specifically are respectively the stem stem of U sections core.
Preferably, said first pillar, second pillar and first iron core specifically are respectively the stem stem of E sections core.
Preferably, said first pillar, second pillar and first iron core specifically are respectively the stem stem of E sections core.
Preferably, said first pillar and second intercolumniation are less than the spacing of said second pillar and first iron core.
Preferably, also comprise and be fixed on the location hitching post that valve body is provided with an end of medium inlet.
The utility model also provides a kind of solenoid valve system, comprises a plurality of above-mentioned solenoid valves.
Can know via above-mentioned technological scheme; Compared with prior art; The utility model provides a kind of solenoid valve and solenoid valve system; Solenoid valve comprises the valve body that is provided with valve pocket, and said valve body one end is provided with the medium inlet that communicates with said valve pocket, and the other end is provided with the media outlet that communicates with said valve pocket; Said solenoid valve also comprises the valve actuation sheet and is fixed on first iron core that valve body is provided with media outlet one end and is wound with first coil; The end that said valve body is provided with media outlet also is provided with first pillar that extends to valve pocket, and this first pillar is provided with the through hole that communicates with said media outlet and valve pocket respectively; The valve actuation sheet is arranged in valve pocket, is being pressed under the medium differential pressure effect inside and outside the valve pocket on said first pillar, constitutes sealing pair with first pillar, and and first iron core between have the gap; First coil produces electromagnetic force under "on" position, its fulcrum rotates the valve actuation sheet in this electromagnetic force lower edge, and then makes an end of valve actuation sheet inhale from said first pillar, and the other end is adsorbed on said first iron core.Because the valve actuation sheet and first iron core are positioned at the same side, through the perk respectively of control valve moving plate two ends, realize the opening and closing of solenoid valve during solenoid valve work; Change original solenoid valve through the method that valve actuation sheet integral body moves control electromagnetic valve to open and close, reduced the aerial distance of walking in magnetic field, greatly reduced magnetic resistance; Thereby; When same electric current, the magnetic force that the valve actuation sheet receives is bigger, and the action of valve actuation sheet is rapider; Thereby make the time of closed electromagnetic valve and unlatching shorten, improved the frequency of okperation of solenoid valve.Because the time of closed electromagnetic valve shortens, also avoided the unnecessary loss of medium simultaneously.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is the embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
Fig. 1 is a kind of solenoid valve embodiment's 1 of the utility model a sectional view;
Fig. 2 is a kind of structural representation of the valve actuation sheet of a kind of solenoid valve of the utility model;
Fig. 3 is a sectional view among a kind of solenoid valve embodiment 2 of the utility model;
Fig. 4 is that a kind of solenoid valve of the utility model is implemented 2 circuit connection schematic representation;
Fig. 5 is that a kind of solenoid valve embodiment's 3 of the utility model circuit connects schematic representation;
Fig. 6 is a kind of solenoid valve embodiment 4 sectional views of the utility model;
Fig. 7 is a kind of solenoid valve embodiment's 5 of the utility model a sectional view;
Fig. 8 is a kind of solenoid valve embodiment's 6 of the utility model a partial structurtes schematic representation;
Fig. 9 is a kind of solenoid valve embodiment's 7 of the utility model a partial structurtes schematic representation;
Figure 10 is an embodiment's of a kind of solenoid valve system of the utility model a sectional view.
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of solenoid valve and solenoid valve system, and said solenoid valve comprises the valve body that is provided with valve pocket, and said valve body one end is provided with the medium inlet that communicates with said valve pocket, and the other end is provided with media outlet; Said solenoid valve also comprises the valve actuation sheet and is fixed on first iron core that valve body is provided with media outlet one end and is wound with first coil; The end that said valve body is provided with media outlet also is provided with first pillar that extends to valve pocket, and this first pillar is provided with the through hole that communicates with said media outlet and valve pocket respectively; The valve actuation sheet is arranged in valve pocket, is being pressed under the medium differential pressure effect inside and outside the valve pocket on said first pillar, constitutes sealing pair with first pillar, and and first iron core between have the gap; First coil produces electromagnetic force under "on" position, its fulcrum rotates the valve actuation sheet in this electromagnetic force lower edge, and then makes an end of valve actuation sheet inhale from said first pillar, and the other end is adsorbed on said first iron core, and through hole is opened.
The utility model embodiment valve actuation sheet and first iron core are positioned at the same side; Pass through the perk respectively of control valve moving plate two ends during solenoid valve work; Realize the opening and closing of solenoid valve; Valve actuation sheet displacement distance shortens, thereby makes the time of closed electromagnetic valve and unlatching shorten, and has improved the frequency of okperation of solenoid valve.And, also avoided the unnecessary loss of medium because the time of closed electromagnetic valve shortens.In addition; Among the utility model embodiment, be that the size in moving plate and the first pillar gap is adjusted solenoid valve MEDIA FLOW momentum during through the perk of control valve moving plate, pillar also wore and tore with iron core simultaneously when there were wearing and tearing in the valve actuation sheet; Constant after the moving plate perk with the gap of first pillar; Even if therefore the wearing and tearing of valve actuation sheet can not influence the variation of MEDIA FLOW momentum yet, working life is longer, has improved the performance of solenoid valve.
Describe the technological scheme of the utility model in detail below in conjunction with accompanying drawing.
Referring to Fig. 1, show a kind of solenoid valve embodiment's 1 of the utility model sectional view.
Said solenoid valve can comprise the valve body 2 that is provided with valve pocket 1, and said valve body 2 one ends are provided with the medium inlet 21 that communicates with said valve pocket 1, and the other end is provided with media outlet 22.Its medium is meant can be through the fluid of solenoid valve circulation, air for example, water etc.
Said solenoid valve can also comprise valve actuation sheet 3 and be fixed on first iron core 4 that valve body 2 is provided with media outlet one end, be wound with first coil 5 on said first iron core 4.First coil 5 can produce electromagnetic force when energising, said first coil 5 and first iron core 4 form electromagnet.Wherein first iron core 4 extends in the valve pocket 1, and it can be through injection moulding or other mode sealing and fixing in valve body.
Said valve body 2 is provided with an end of media outlet, also is provided with first pillar 6 that extends to valve pocket 1, and said first pillar 6 is provided with the through hole 61 that communicates with said media outlet 22 and valve pocket 1 respectively.First iron core 4 and first pillar 6 all are positioned at the same side.
Said valve actuation sheet 3 is arranged in valve pocket 1; Owing in the valve pocket media flow is arranged,, seals said through hole 61 being pressed under the medium differential pressure effect inside and outside the valve pocket on said first pillar 6; Constitute sealing pair with first pillar 6; And and have the gap between first iron core 4, and solenoid valve promptly is in closed condition, and medium can not circulate.The pressure reduction of the inside and outside medium of valve pocket is meant the active force that the pressure difference inside and outside the valve pocket that causes owing to media flow produces.
Said first coil 5 produces under "on" position said valve actuation sheet 3 is rotated along its fulcrum, and then an end of said valve actuation sheet 3 is inhaled from said first pillar 6, and the other end is adsorbed on the electromagnetic force on said first iron core 4, and through hole is opened, and solenoid valve is promptly opened.
That is to say that an end of valve actuation sheet 3 can be pressed under the medium differential pressure effect inside and outside the valve pocket on first pillar 6, and has the gap between the other end and first iron core 4.When first coil 5 produces electromagnetic force, can the end near first iron core 4 of valve actuation sheet 3 be adsorbed on first iron core 4, and a feasible end perk that is pressed in first pillar 6 is sucked from said first pillar 6.The fulcrum of valve actuation sheet 3 is that the valve actuation sheet can be along the point of its rotation, and this fulcrum can be positioned on first pillar 6, also can be positioned on first iron core 4, can also be a certain position that can play point action between first pillar 6 and first iron core 4.
Shown in Figure 1 is a kind of maybe structural type, as valve actuation sheet fulcrum, opposite side is provided with through hole to first pillar 6 near the top of a side of first iron core 4.Described first pillar 6 can be structure as a whole with said valve body 2, also can be arranged in the valve body 2, with valve body 2 be the structure of separated type.
The distance that first iron core 4 and first pillar 6 extend to valve pocket 1 is according to concrete setting of size in actual conditions and solenoid valve valve pocket 1 space, when guaranteeing that valve actuation sheet 3 contacts with first iron core 4 or first pillar 6, directly do not contact with valve body 2 and gets final product.Position in described first pillar, the 6 place valve bodies 2 is corresponding with the position of said medium inlet 21, so that valve actuation sheet 3 can be pressed under the medium differential pressure effect inside and outside the valve pocket on first pillar 6.
Said first coil 5 two ends link to each other with extraneous power supply, specifically can be to connect extraneous power supply through the terminal that is arranged in the valve body 2.
Need to prove that first coil normally is connected with the built-in surface-mounted integrated circuit of solenoid valve, said first coil specifically is to link to each other with power supply through said surface-mounted integrated circuit.In addition; Because solenoid valve is periodically to carry out work; One switching pulse control circuit can also be set on the said surface-mounted integrated circuit, and said first coil is connected with said switching pulse control circuit through a built-in switch, is connected with extraneous power supply through said switching pulse control circuit again.After the solenoid valve energized, said switching pulse control circuit is controlled the open and close of said built-in switch, and then controls the break-make electricity of first coil, makes periodically opening and closing of solenoid valve.
In real work, the working principle of described solenoid valve is:
Under the state that first coil 5 is not switched on, valve actuation sheet 3 is pressed on first pillar 6 and constitutes sealing pair under medium differential pressure effect inside and outside the valve pocket, and and first iron core 4 between have the gap, separated by a distance, closed electromagnetic valve.
Under first coil, 5 "on" positions, first coil 5 has electric current to flow through, and produces electromagnetic force.Valve actuation sheet 3 under the effect of this electromagnetic force, with first iron core, 4 discontiguous ends to said first iron core 4 near, said first pillar 6 is left in the other end perk.Also be that said valve actuation sheet 3 is sucked from through hole 61 conductings on said first pillar, 6, the first pillars 6, make that the medium in the valve pocket can flow out, solenoid valve is opened.
After the outage of first coil 5, valve actuation sheet 3 is resetting under the medium differential pressure effect inside and outside the valve pocket once more, is pressed in again on first pillar 6, constitutes sealing pair, and with said first iron core 4 between have the gap and do not contact, solenoid valve cuts out again.
Among the utility model embodiment, the valve actuation sheet and first pillar and first iron core specifically are to form the seesaw structure.When solenoid valve was not switched on, the valve actuation sheet had been pressed on first pillar under the effect of medium differential pressure inside and outside the valve pocket, and did not contact with first iron core; When energising, produce the electromagnetic force of aspirating valve moving plate, the valve actuation sheet rotates along its fulcrum, is adsorbed on first iron core with the discontiguous end of first iron core, thereby makes the end perk that the valve actuation sheet contacts with first pillar; After outage, the valve actuation sheet is pressed on first pillar again.Owing to adopt the form of seesaw; Shortened the displacement distance of valve actuation sheet, it need not to move to the other end from an end of valve pocket, has therefore shortened an operation cycle of solenoid valve; The said operation cycle also promptly is closed to unlatching again to closing the required time, has therefore improved the frequency of okperation of solenoid valve.And because the solenoid valve power-off restoration time shortens, make solenoid valve to close rapidly, avoided the unnecessary loss of medium.
Wherein, said seesaw structure can adopt multiple way of realization.
A kind of possibility mode be: said valve actuation sheet 3 is specially the bending moving plate, and the inflection point can be positioned on said first pillar 6.When first coil 5 was not switched on, valve actuation sheet 3 was under medium differential pressure effect inside and outside the valve pocket, and the position that belongs to its inflection point is a fulcrum, and an end is pressed on first pillar 6, and is upturned near the other end of said first iron core 4.
When said valve actuation sheet 3 was its fulcrum with first pillar 6, another kind of possibility mode be: said valve actuation sheet 3 was straight moving plate, and the length that extends to valve pocket of said first iron core 4 extends to the length of valve pocket less than first pillar 6.The valve actuation sheet is pressed in 6 last times of first pillar, and has the gap between first iron core 4; The valve actuation sheet under electromagnetic force to first iron core 4 near, when adsorbing above that, be pressed in an end perk of first pillar 6, can be so that through hole 61 conductings.
Wherein, Overturn in valve pocket 1 for fear of valve actuation sheet 3; Preferably, in Fig. 1, said solenoid valve also comprises location hitching post 7; Said location hitching post 7 is fixed on the end that valve body 2 is provided with medium inlet 21, makes valve actuation sheet 3 between location hitching post 7 and first iron core 4 and first pillar 6.Distance between the said location hitching post 7 and first iron core 4 and first pillar 6 need satisfy said valve actuation sheet 3 can left and right sides perk, and is unlikely in valve pocket 1, to overturn and gets final product.
Wherein, in order to make with easy for installation, said solenoid valve specifically can comprise the first sub-valve body 2a and the second sub-valve body 2b, and valve pocket 1, medium inlet 21 and above-mentioned location hitching post 7 are arranged among the first sub-valve body 2a; First iron core 4, media outlet 22, first pillar 6 are arranged among the second sub-valve body 2b.
The said first sub-valve body 2a links to each other with the second sub-valve body 2b sealing, fixes through bonding mode, and the bonding part can also increase seal ring and seal, to guarantee the seal of valve pocket.
In addition, for the ease of maintenance, the said first sub-valve body 2a and the second sub-valve body 2b also can tighten together through bolt or screw.
In addition, said solenoid valve also comprises the coil rack that is arranged on first iron core 4, and coil rack is provided with trepanning, and said first coil 5 is wrapped on said first iron core 4 through the trepanning of said coil rack.
Said first iron core 4 is specially soft magnetic material, and said valve actuation sheet 3 also is a soft magnetic material.
In the present embodiment, because the valve actuation sheet and first iron core are positioned at the same side all the time, through the perk of control valve moving plate; Realize the unlatching of solenoid valve or close; The valve actuation sheet need not to move to the other end from valve pocket one end, has reduced displacement distance, has shortened solenoid valve greatly and has opened and the time of closing; Make the solenoid valve operation cycle shorten, thereby improved the frequency of okperation of solenoid valve.
Referring to Fig. 3; Show a kind of solenoid valve embodiment's 2 of the utility model structural representation; Present embodiment and above-mentioned solenoid valve embodiment 1 difference are that said first pillar 6 that is fixed in the valve body 2 is specially iron core, is wound with second coil 8 on said first pillar 6.
Said first coil 5 switches the electric switch of break-make and is connected with extraneous power supply through realizing both with second coil 8.The said switch that can realize that both switch break-make electricity is specially single-pole double-throw switch (SPDT).
Wherein, For fear of first coil 5 or second coil 8 when the outage; Produce electromotive force, make win coil or second coil continue to have electric current to flow through and produce electromagnetic force, influence the unlatching of solenoid valve or close; Therefore after said first coil 5 is in series with the diode of blocking-up back current respectively with second coil 8, again through realizing that both switch the electric switch of break-make and connect extraneous power supply.
Fig. 4 shows in the present embodiment 2, and the inner circuit of solenoid valve connects schematic representation.
Need to prove that it is the inner equivalent circuit diagram of solenoid valve that circuit shown in Figure 4 connects schematic representation, in practical application, described first coil 5 is to link to each other with extraneous power supply through integrated circuit board with second coil 8.Connect for ease, said solenoid valve is provided with terminal 9, and terminal 9 links to each other with the internal integrated circuit plate, and said terminal 9 can specifically comprise three joints, and one is used for ground connection, and two other is used to connect extraneous power supply.
In real work,, need begin repeatedly and close because solenoid valve is cycling.When solenoid valve was not switched on, an end of valve actuation sheet was pressed on first pillar sealing first pillar through hole, the other end perk make and first iron core between have the gap, closed electromagnetic valve; After the solenoid valve energized, switch at first places first coil, makes the coil electricity of winning, and second coil blackout is inhaled valve actuation sheet one end from first pillar thereby can produce, and the other end is adsorbed on the electromagnetic force on first iron core, and solenoid valve is opened; Triggering single-pole double-throw switch (SPDT) afterwards switches; Make the coil blackout of winning, second coil electricity produces electromagnetic force, and then the valve actuation sheet is under the electromagnetic force of medium differential pressure effect inside and outside the valve pocket and the generation of second coil; Valve actuation sheet one end is pressed on first pillar again; The other end perk, leave that this first iron core makes and first iron core between have the gap, solenoid valve cuts out again; Continue to trigger the switching of single-pole double-throw switch (SPDT), solenoid valve can be opened again under the first coil electromagnetism power again, thereby solenoid valve can periodic duty.Wherein, trigger the operation of the switching of single-pole double-throw switch (SPDT) and can artificially control, also can control through said pulse control circuit, it produces control impuls at regular intervals, triggers the switching of single-pole double-throw switch (SPDT).
Need to prove in the present embodiment, between described first pillar and first iron core connection can not be arranged, produce electromagnetic force simultaneously to avoid said first pillar and first iron core.
In the present embodiment, first pillar is specially iron core, is wound with second coil simultaneously; Second coil can link to each other through a single-pole double-throw switch (SPDT) with first coil; During first coil electricity, second coil is in off-position, during first coil blackout; Then second coil is in "on" position, can produce electromagnetic force.Therefore the valve actuation sheet can reset rapidly under the electromagnetic force of medium differential pressure inside and outside the valve pocket and the generation of second coil when first coil blackout resets, and has shortened the shut-in time of solenoid valve, thereby can further improve the frequency of okperation of solenoid valve.
Wherein, The utility model also provides a kind of solenoid valve embodiment 3, and in the present embodiment, first pillar of said solenoid valve is also for being wound with the iron core of second coil; Present embodiment and solenoid valve embodiment 2 differences are that said first coil is different with the circuit connection structure of second coil.
Referring to Fig. 5, show the inner circuit connection schematic representation of solenoid valve in the present embodiment 3.
Said second coil 8 is connected in the two ends of said first coil 5 in parallel with after the diode 82 of blocking-up forward current is connected.
After said first coil 5 and second coil 8 are connected in parallel, can directly link to each other with extraneous power supply.Preferably, can also connect switching pulse control circuit 200, connect extraneous power supply, when the solenoid valve energized, control the break-make of first coil by the switching pulse switching circuit through said switching pulse control circuit 200 through built-in switch 300.The said diode that can block forward current is a unilateral conduction of utilizing diode, and the negative electrode of diode links to each other with positive source, and anode links to each other with power cathode, can not conducting diode when making forward voltage.
In real work, when first coil was not switched on, the valve actuation sheet of solenoid valve was pressed on first pillar under the pressure medium effect in valve pocket, sealed the first pillar through hole, formed to constitute sealing pair, made solenoid valve be in closed condition.
There is electric current to pass through during first coil electricity,, blocked the electric current of second coil of flowing through, make the coil of winning, can the valve actuation sheet be inhaled from said first pillar owing to magnetic effect of electric current produces electromagnetic force owing to the unilateral conduction of diode.Concrete, because the valve actuation sheet does not contact with first iron core, the valve actuation sheet can be attracted under the electromagnetic force effect on said first iron core; Make the valve actuation sheet be pressed in an end perk of first pillar, break away from first pillar, the through hole conducting; The medium circulation, solenoid valve is in opening state.
Behind first coil blackout, first coil can produce self induction electromotive force because electric current changes, and forms the loop with second coil and produces self inductance current.Self inductance current is owing to reverse with the power supply forward current, so second coil of can flowing through, and said second coil is because magnetic effect of electric current produces electromagnetic force; Attract said valve actuation sheet, add the differential pressure action of the inside and outside medium of valve pocket, the valve actuation sheet is under the double action of the second coil electromagnetism power and inside and outside differential pressure; Can reset rapidly, be pressed in again on first pillar, to seal the through hole on first pillar; Therefore further shortened the shut-in time that resets of solenoid valve; Shortened the operation cycle of solenoid valve, promptly, therefore improved the frequency of okperation of solenoid valve from being closed to unlatching again to closing.
Wherein, in the present embodiment, all right parallelly connected electric capacity 400 in said second coil 8 two ends; Therefore in real work, after 5 outages of first coil, produce self induction electromotive force, the electric current of generation second coil 8 of flowing through; Give electric capacity 400 chargings simultaneously, 8 work of second coil produce electromagnetic force.And after the self induction electromotive force of second coil, 8 generations discharges a period of time; Electric capacity 400 begins discharge and continue to produce electric current second coil 8 of flowing through, and can keep second coil 8 to have electric current to pass through, and continues to produce electromagnetic force; Thereby can guarantee that the valve actuation sheet is resetting rapidly under the medium differential pressure effect inside and outside the electromagnetic force of second coil 8 and the valve pocket; Further increase the reset speed of valve actuation sheet, shortened the closed electromagnetic valve time, improved the frequency of okperation of solenoid valve.
Referring to Fig. 6; Show a kind of solenoid valve embodiment's 4 of the utility model sectional view; Present embodiment and above-mentioned solenoid valve embodiment 1 difference are; The end that said valve body 2 is provided with media outlet also is provided with and extends to valve pocket 1, and second pillar 10 between said first pillar 6 and first iron core 4.Other structures can repeat no more at this referring to described in the embodiment 1.
Solenoid valve does not connect power supply, and when first coil 5 was not switched on, valve actuation sheet 3 had been pressed under the medium differential pressure effect inside and outside the valve pocket on said first pillar 6 and second pillar 10, and and said first iron core 4 between have the gap.
During 5 energisings of first coil, produce electromagnetic force, said electromagnetic force makes said valve actuation sheet 3 rotate along its fulcrum, and then makes an end of said valve actuation sheet 3 inhale from said first pillar 6, and the other end is adsorbed on said first iron core 4.
Concrete and said first iron core 4 of valve actuation sheet 3, first pillar 6 and second pillar 10 form the seesaw structures in the present embodiment.Said valve actuation sheet 3 with said second pillar 10 as its rotating fulcrum.At solenoid valve access failure power supply, when first coil was not switched on, valve actuation sheet 3 was pressed on said first pillar 6 and second pillar 10, and and first iron core 4 between have the gap; When first coil electricity, valve actuation sheet 3 as fulcrum, is pressed in the end perk on said first pillar 6 with second pillar 10, is sucked from said first pillar 6, the other end to first iron core 4 near, be adsorbed on first iron core 4; After 5 outages of first coil, valve actuation sheet 3 resets, and be pressed in again on first pillar 6 and second pillar 10, and leave said first iron core 4, thereby solenoid valve is accomplished an operation cycle.Owing to adopt the form of seesaw; Shortened the displacement distance of valve actuation sheet, it need not to move to the other end from an end of valve pocket, has therefore shortened an operation cycle of solenoid valve; The said operation cycle also promptly is closed to unlatching again to closing the required time, has improved the frequency of okperation of solenoid valve.And because the solenoid valve power-off restoration time shortens, make solenoid valve to close rapidly, avoided the unnecessary loss of medium.
Wherein, as embodiment preferably, said first pillar 6 can be specially iron core, and is wound with second coil 8.
Specifically can adopt Fig. 4 or circuit connection structure shown in Figure 5 between said first coil 5 and second coil 8.Thereby can be so that solenoid valve is when unlatching switches to closed condition; Can so that valve actuation sheet 3 under the acting in conjunction of the electromagnetic force that medium differential pressure inside and outside the valve pocket and second coil 8 produce; Reset rapidly; Promptly be pressed in again on first pillar 6 and second pillar 10, thereby can shorten shut-in time of solenoid valve, the further frequency of okperation that improves solenoid valve.Wherein, said first iron core 4, first pillar 6 and second pillar 10 can specifically be the stem stems of E sections core.Shown in Figure 6 promptly is the solenoid valve that comprises E sections cored structure, and center pinch is as second pillar 10, and the both sides stem stem is respectively as first pillar 6 and first iron core 4.
Need to prove that electromagnetic valve structure shown in Figure 6 is not the concrete qualification to the utility model embodiment, said first iron core 4, first pillar 6 and second pillar 10 can be separate type, also can be the E sections cores of the integral type that forms.First pillar 6 and second pillar 10 can be integral structure with valve body, also can be separate type.
In order to shorten the opening time of solenoid valve; The distance between first pillar 6 and second pillar 10 can be less than the distance between first iron core 4 and second pillar 10; Therefore the valve actuation sheet is under electromagnetic attracting force; To first iron core 4 near the time, displacement distance shortens, thereby makes the opening speed of solenoid valve increase.
In addition; As a kind of solenoid valve embodiment 5 of the utility model, specifically can be referring to solenoid valve sectional view shown in Figure 7, wherein; Fig. 7 and solenoid valve difference shown in Figure 6 are that said first iron core 4 can also be respectively the stem stem of U sections core with said second pillar 10.In the U sections core fixed valve body, one of them stem stem twines first coil as first iron core 4, and another stem stem is described second pillar 10.First pillar 6 does not contact with said U sections core.
Wherein, said seesaw structure can adopt multiple way of realization.Introduce two kinds possible implementation below in conjunction with diagram.
Referring to Fig. 8, show a kind of solenoid valve embodiment's 6 of the utility model partial structurtes schematic representation.Fig. 8 specifically illustrates is the concrete connection schematic representation between valve actuation sheet 3 and first iron core 4, first pillar 6 and second pillar 10, and other structure divisions can repeat no more at this referring to the foregoing description 4 described solenoid valves.
Said valve actuation sheet 3 is specially the described bending moving plate like Fig. 2, and the inflection point specifically is positioned on said second pillar 10 in the present embodiment.Valve actuation sheet 3 is under the electromagnetic force effect that perhaps first coil 5 produces under the medium differential pressure effect inside and outside the valve pocket, and the position that belongs on second pillar with its inflection point is a fulcrum, forms the seesaw structure with electromagnet.Concrete working procedure can be referring to described in the embodiment 1.
Present embodiment is the seesaw structure that forms through the form that bends moving plate.
Referring to Fig. 9, show a kind of solenoid valve embodiment's 7 of the utility model partial structurtes schematic representation.Fig. 9 has specifically illustrated the concrete connection schematic representation between valve actuation sheet 3 and first iron core 4, first pillar 6 and second pillar 10, and other structure divisions can repeat no more at this referring to the foregoing description 4 described solenoid valves.
Said valve actuation sheet 3 is specially straight moving plate.
Said first iron core 4 intersects towards the summit and the line and said second pillar 10 of said first pillar 6 between the summit of valve pocket one end of valve pocket one end; That is to say; Said first iron core 4 towards the summit of valve pocket one end and said first pillar 6 line and said second pillar 10 between the summit of valve pocket one end online intersection point, need drop on the part that said second pillar extends to valve pocket.When therefore solenoid valve was not switched on, valve actuation sheet 3 can be pressed under the inside and outside medium differential pressure effect on first pillar 6 and second pillar 10; And when the energising of first coil 5 produced electromagnetic forces, the valve actuation sheet rotated as fulcrum with said second pillar 10, made an end perk that is pressed in first pillar 6, the other end to first iron core 4 near, be adsorbed on first iron core 4.
Wherein, Said first iron core 4 intersects towards the summit and the line and said second pillar 10 of said first pillar 6 between the summit of valve pocket one end of valve pocket one end; The length that a kind of situation can extend to valve pocket for: said second pillar 10 extends to the length of valve pocket greater than said first iron core 4, is greater than or equal to the length that first pillar 6 extends to valve pocket.Certainly the utility model is not limited thereto kind of a situation.
In the present embodiment; Because solenoid valve is small instrument, though the valve actuation sheet leaves the slit with the part that first pillar contacts, can not the through hole on first pillar be sealed fully; But do not influence closed electromagnetic valve institute desired impact, promptly stop the amount of flow of media flow or minimizing medium.And, the permeability when sealing effect in the time of can improving the valve actuation sheet and contact with first pillar through the inclined-plane that first pillar and the first iron core top is processed with moving plate cooperates or moving plate contact with first iron core.
The setting between solenoid valve gas output size and the stem stem as requested of the difference between the extended length of first iron core, first pillar and second pillar wherein apart from length.
Present embodiment is non-structural type such as height such as grade through first pillar, second pillar and first iron core, the seesaw structure of formation.
In practical application, the described solenoid valve of the utility model can specifically be applied in the sorting apparatus of granule materials, be provided with the valve actuation sheet bending angle or and stem stem between distance; Make solenoid valve reach preset gas output when opening,, adopt the technological scheme of the utility model so that bad material is rejected; Solenoid valve can cut out rapidly; Avoided when the material sorting,, caused the loss of material because the shut-in time is slower.
The processing of the described solenoid valve of the utility model embodiment is with easy for installation, and first pillar and the also wearing and tearing simultaneously of first iron core when having wearing and tearing of valve actuation sheet, and the gap with first pillar after the moving plate perk can remain unchanged, and therefore can not influence the amount of flow of medium.
In addition, the utility model also provides a kind of solenoid valve system, referring to Figure 10, an embodiment's of a kind of solenoid valve system of the utility model structural representation is shown.
Said solenoid valve system can comprise the described solenoid valve of a plurality of the foregoing descriptions; Among Figure 10, show the solenoid valve system of forming by two solenoid valves, solenoid valve A and solenoid valve B; Specifically can connect between the solenoid valve through the keyway mode; Perhaps link together through forging type, also can be through fixed connections such as screws, the utility model does not limit this several kinds of Placements certainly.
The concrete structure of said solenoid valve A and solenoid valve B can repeat no more at this referring to described in the foregoing description.
In practical application, often with a plurality of solenoid valves formation solenoid valve system that is grouped together, can conserve space, can also provide cost savings simultaneously.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
Need to prove; In this article; Relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint relation or the order that has any this reality between these entities or the operation.And; Term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability; Thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements; But also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Under the situation that do not having much more more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises said key element and also have other identical element.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiments shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (18)
1. a solenoid valve comprises the valve body that is provided with valve pocket, and said valve body one end is provided with the medium inlet that communicates with said valve pocket; The other end is provided with the media outlet that communicates with said valve pocket; It is characterized in that, also comprise the valve actuation sheet and be fixed on valve body media outlet one end and be wound with first iron core of first coil; Wherein
Said valve body media outlet one end is provided with first pillar that extends to valve pocket, and said first pillar is provided with the through hole that communicates with said media outlet and valve pocket respectively;
Said valve actuation sheet is arranged in valve pocket, is being pressed under the medium differential pressure effect inside and outside the valve pocket on said first pillar, constitutes sealing pair with said first pillar, and and said first iron core between have the gap;
Said first coil produces under "on" position said valve actuation sheet is rotated along its fulcrum, and then an end of said valve actuation sheet is inhaled from said first pillar, and the other end is adsorbed on the electromagnetic force on said first iron core.
2. solenoid valve according to claim 1 is characterized in that, said first pillar is specially the iron core that is fixed in the valve body and is wound with second coil;
Said first coil switches the electric switch of break-make and is connected power supply through realizing both with second coil.
3. solenoid valve according to claim 1 is characterized in that, said first pillar is specially the iron core that is fixed in the valve body and is wound with second coil;
Said second coil with the blocking-up forward current diode connect after, be connected in the said first coil two ends in parallel.
4. solenoid valve according to claim 3 is characterized in that, the said second coil two ends shunt capacitance.
5. solenoid valve according to claim 1 is characterized in that, said valve body comprises the first sub-valve body and the second sub-valve body that forms valve pocket after the sealed butt joint;
Said medium inlet is arranged in the first sub-valve body, and said first pillar, first iron core and media outlet are arranged in the second sub-valve body.
6. according to each described solenoid valve of claim 1～5, it is characterized in that said valve actuation sheet is the bending moving plate, the inflection point is positioned on said first pillar;
Under medium differential pressure effect inside and outside the valve pocket, said valve actuation sheet is a fulcrum with said first pillar, is upturned near an end of said first iron core.
7. according to each described solenoid valve of claim 1～5, it is characterized in that said valve body media outlet one end also is provided with and extends to valve pocket, and second pillar between said first pillar and first iron core;
Said valve actuation sheet is being pressed under the medium differential pressure effect inside and outside the valve pocket on said first pillar and second pillar.
8. solenoid valve according to claim 7 is characterized in that, said valve actuation sheet is the bending moving plate, and the inflection point is positioned on said second pillar;
Under medium differential pressure effect inside and outside the valve pocket, said valve actuation sheet is a fulcrum with said second pillar, is upturned near said first iron core, one end.
9. solenoid valve according to claim 7; It is characterized in that; Said valve actuation sheet is straight moving plate; Said first iron core intersects towards the summit of valve pocket one end and the line and said second pillar of said first pillar between the summit of valve pocket one end, said valve actuation sheet specifically with said second pillar as its fulcrum.
10. solenoid valve according to claim 1 is characterized in that, the said first coil two ends are in series with the diode of blocking-up back current.
11. solenoid valve according to claim 7 is characterized in that, said first iron core and said second pillar specifically are respectively the stem stem of U sections core.
12. solenoid valve according to claim 7 is characterized in that, said first pillar, second pillar and first iron core specifically are respectively the stem stem of E sections core.
13. solenoid valve according to claim 8 is characterized in that, said first pillar, second pillar and first iron core specifically are respectively the stem stem of E sections core.
14. solenoid valve according to claim 7 is characterized in that, said first pillar and second intercolumniation are less than the spacing of said second pillar and first iron core.
15. solenoid valve according to claim 13 is characterized in that, said first pillar and second intercolumniation are less than the spacing of said second pillar and first iron core.
16. according to each described solenoid valve of claim 1～5, it is characterized in that, also comprise being fixed on the location hitching post that valve body is provided with an end of medium inlet.
17. solenoid valve according to claim 13 is characterized in that, also comprises being fixed on the location hitching post that valve body is provided with an end of medium inlet.
18. a solenoid valve system is characterized in that, comprises a plurality of like each described solenoid valve of claim 1～17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205089780U CN202349357U (en) | 2011-12-08 | 2011-12-08 | Solenoid valve and solenoid valve system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205089780U CN202349357U (en) | 2011-12-08 | 2011-12-08 | Solenoid valve and solenoid valve system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349357U true CN202349357U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205089780U Withdrawn - After Issue CN202349357U (en) | 2011-12-08 | 2011-12-08 | Solenoid valve and solenoid valve system |
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| Country | Link |
|---|---|
| CN (1) | CN202349357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518859A (en) * | 2011-12-08 | 2012-06-27 | 合肥美亚光电技术股份有限公司 | Electromagnetic valve and electromagnetic valve system |
-
2011
- 2011-12-08 CN CN2011205089780U patent/CN202349357U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518859A (en) * | 2011-12-08 | 2012-06-27 | 合肥美亚光电技术股份有限公司 | Electromagnetic valve and electromagnetic valve system |
| CN102518859B (en) * | 2011-12-08 | 2013-06-26 | 合肥美亚光电技术股份有限公司 | Electromagnetic valve and electromagnetic valve system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120725 Effective date of abandoning: 20130626 |
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| RGAV | Abandon patent right to avoid regrant |