CN201096090Y - Electromagnetic three way valve - Google Patents
Electromagnetic three way valve Download PDFInfo
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- CN201096090Y CN201096090Y CNU2007200054153U CN200720005415U CN201096090Y CN 201096090 Y CN201096090 Y CN 201096090Y CN U2007200054153 U CNU2007200054153 U CN U2007200054153U CN 200720005415 U CN200720005415 U CN 200720005415U CN 201096090 Y CN201096090 Y CN 201096090Y
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Abstract
The utility model discloses a novel electromagnetic triple valve, which is used for controlling a control cylinder of a rotary compressor. The utility model comprises a valve body and an electromagnetic control component, wherein, the valve body comprises a first cavity chamber and a second cavity chamber; the first cavity chamber and the second cavity chamber are communicated by a connecting channel with a valve mouth; the electromagnetic control component comprises a movable iron core controlled by an electromagnetic coil, wherein, the end part of the electromagnetic coil is provided with a sealing piece which can seal the valve mouth; the first cavity chamber is provided with a first connecting pipe used for connecting a high pressure source of a compressor; the second cavity chamber is provided with a second connecting pipe and a third connecting pipe, the second connecting pipe is used for connecting the control cylinder of the rotary compressor, and the third connecting pipe is used for connecting a low pressure source of the compressor; a pipeline of the third connecting pipe is provided with a high pressure disconnecting valve, and the high pressure disconnecting valve comprises a valve seat, a valve core and elastic elements, wherein, the valve core forms a sealing cooperation with the valve seat when high pressure gases go into the third connecting pipe; the valve core and the valve seat are disengaged from cooperation by the elastic elements. The electromagnetic triple valve provided by the utility model has the advantages of simple structure, reliable running, low cost and long service life.
Description
Technical field
The utility model relates to a kind of control gear of rotary compressor, relates in particular to a kind of three-way electromagnetical valve.
Background technique
In existing refrigeration system, usually the three-way diverter valve that adopts four-way change-over valve or changed a social system by the electromagnetism four-way change-over valve (also claims capacity formula compressor to rotary compressor, capacity variable type compressor) controls, the structure of existing rotary compressor as shown in Figure 1, when cylinder 35 makes valve block 32 be pressed in rotor 34, the rotation of rotor 34 is promptly compressed gas, and by turnover tracheae 30,33 carry out air-breathing and exhaust, the compression of compressor or do not compress by moving of cylinder 35 and control, the mobile valve block 32 of having controlled of cylinder compresses or does not compress rotor 34, and moving of cylinder controlled by the pressure of the gas that enters suction tude 31, when entering pressurized gas in the suction tude, this valve block 32 compresses rotor 34, thereby compressor is in the state of pressurized gas, on the contrary, when entering low-pressure gas in the suction tude, these valve block 32 malcompression rotors 34, compressor is in not compressive state.The working principle of electromagnetism four-way change-over valve control rotary compressor is referring to Fig. 2 and Fig. 3.
Referring to Fig. 2, when electromagnetic coil is in off-position, guide's guiding valve 2 ' moves to left under pressure spring 3 ' drives, pressurized gas enter piston cavity 4 ' after entering capillary tube 1 ', and on the other hand, the gas of piston cavity 5 ' is discharged, because there is pressure reduction in the piston two ends, piston and main slide valve 6 ' move to left, and E, S are taken over communicate, and D, C take over and communicate.Referring to Fig. 3, when electromagnetic coil is in "on" position, guide's guiding valve 2 ' overcomes the tension force of pressure spring 3 ' and moves to right under the magnetic force that electromagnetic coil produces, pressurized gas enter piston cavity 5 ' after entering capillary tube 1 ', and on the other hand, the gas of piston cavity 4 ' is discharged, because there is pressure reduction in the piston two ends, piston and main slide valve 6 ' move to right, and S, C are taken over communicate, and D, E take over and communicate.
Though four-way change-over valve or can satisfy the control requirement of control rotary compressor by the three-way diverter valve of the four-way change-over valve transformation of the way, but because four-way change-over valve and belong to electromagnetic attraction by the three-way diverter valve of the four-way change-over valve transformation of the way and drive the spool sliding structure, its complex structure, cost height, life-span are low.
The model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of simple in structure, reliable, cost is low, the life-span is long electromagnetism three-way diverter valve is provided.
In order to achieve the above object, the utility model provides a kind of three-way electromagnetical valve, comprise valve body and electromagnetic control assembly, it is characterized in that, described valve body comprises first chamber and second chamber by the connecting passage connection of band valve port, described electromagnetic control assembly comprises the outer tube that is located on described first chamber, be located at the outer electromagnetic coil of described outer tube, and be located at static iron core and moving iron core in the described outer tube, be provided with first elastic element between described static iron core and the moving iron core, the end of wherein said moving iron core is provided with the Sealing of salable described valve port, described second chamber is provided with second and takes over and the 3rd adapter, be provided with valve seat and spool in wherein said the 3rd adapter, be provided with second elastic element between described valve seat and the spool, described spool is blocked being communicated with between described second adapter and described the 3rd adapter when described second takes over the feeding pressurized gas, and allows gas leakage to a certain degree.
Preferably, the above-mentioned the 3rd takes over first necking down and second necking down that is provided with fixing described valve seat, and described second necking down limits the stroke of described spool.
Preferably, the above-mentioned the 3rd takes over the necking down be provided with fixing described valve seat, and described valve seat has the chamber that holds spool and the top of described chamber has a plurality of retaining pawls, and described retaining pawl or reducing limit the stroke of described spool.
Preferably, the material of above-mentioned spool is metal or teflon.
Preferably, above-mentioned Sealing is steel ball or rubber pad.
The three-way solenoid valve of another exemplary embodiments of the utility model comprises valve body, it is characterized in that, described valve body comprises first chamber and second chamber by the connecting passage connection of band valve port, described first chamber is provided with outer tube, the electromagnetic coil that described outer tube is outer, static iron core and moving iron core in the described outer tube, be provided with first elastic element between described static iron core and the moving iron core, the end of wherein said moving iron core is provided with the Sealing of salable described valve port, described second chamber is provided with second and takes over and the 3rd adapter, also be provided with high-pressure stop valve between described the 3rd adapter and second chamber, described high-pressure stop valve comprises the valve seat with chamber, second elastic element in the described valve seat chamber is set, and the block piece that cooperates with described valve seat, wherein, be provided with adapter sleeve between described valve seat and the described valve body, described block piece is blocked being communicated with between described second adapter and described the 3rd adapter when described second takes over the feeding pressurized gas, and allows gas leakage to a certain degree.
Preferably, above-mentioned Sealing is steel ball or rubber pad.
Preferably, above-mentioned block piece is diaphragm or spool.
Preferably, the cavity bottom that above-mentioned valve seat has is provided with the described the 3rd and takes over the valve port that is communicated with, and the end of described spool is provided with the steel ball of sealing valve port.
The three-way solenoid valve of the another exemplary embodiments of the utility model, be used to control the control cylinder of rotary compressor, it comprises valve body and electromagnetic control assembly, it is characterized in that, described valve body comprises first chamber and second chamber by the connecting passage connection of band valve port, described electromagnetic control assembly comprises the moving iron core that is subjected to solenoid controlled, the end of wherein said moving iron core is provided with the Sealing of salable described valve port, described first chamber (A) is provided with first adapter that is used for being connected with the compressor high-voltage power supply, described second chamber is provided with second the 3rd adapter of taking over and being used for being connected with the low pressure source of described compressor that is used for being connected with described compressor control cylinder, wherein on the 3rd pipeline of taking over, be provided with high-pressure stop valve, described high-pressure stop valve comprises valve seat and spool, and make spool and valve seat break away from the elastic element that cooperates, described spool is blocked being communicated with between described second adapter and described the 3rd adapter when described second takes over the feeding pressurized gas, and allows gas leakage to a certain degree.Preferably, be provided with the leakage way that is used for gas leakage on the described spool or on the described valve seat.
With four-way change-over valve in the prior art and utilize the three-way diverter valve of the electromagnetism four-way change-over valve technology transformation of the way to compare, the control electronic valve that the utility model provides is that the three-way electromagnetical valve parts are few, and simple in structure, cost is low; And control loop is also simple, thereby control action is reliable; In addition because the valve seat and the spool of high-pressure stop valve can be provided with leakage way, thereby second take over and the 3rd time of taking over connection was can control by the leakage of spool and valve base chamber the time that compressor mode switches fully, can on valve seat or spool, make corresponding leakage grooves or hole according to the compressor of different capabilities particularly and realize, promptly realize by control leakage rate and valve core spring power.
Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is in order to provide further instruction to claimed the utility model.
Other features and advantages of the utility model provide in explanation subsequently, partly can be apparent from the description, and maybe can find out from enforcement of the present utility model.The purpose of this utility model and other advantage can be understood, obtain from the structure that following written explanation, claim and accompanying drawing provide especially.
Description of drawings
The accompanying drawing of forming the part of this specification helps further to understand the utility model, and these accompanying drawings illustrate embodiment of the present utility model, and can be used for illustrating principle of the present utility model with specification.In the accompanying drawing:
Fig. 1 shows rotary compressor of the prior art;
Fig. 2 shows the fundamental diagram that the available technology adopting four-way change-over valve is controlled compressor, and wherein electromagnetic coil is in off-position;
Fig. 3 shows the fundamental diagram that the available technology adopting four-way change-over valve is controlled compressor, and wherein electromagnetic coil is in "on" position;
Fig. 4 is the sectional view of the utility model one exemplary embodiments, and it shows the internal structure of the utility model three-way solenoid valve;
Fig. 5 shows the partial enlarged drawing of the sealed a kind of typical structure of the valve port of the utility model three-way solenoid valve;
Fig. 6 shows the partial enlarged drawing of the sealed another kind of typical structure of the valve port of the utility model three-way solenoid valve;
Fig. 7 is the sectional view of another exemplary embodiments of the utility model, and it shows the internal structure of the utility model three-way solenoid valve;
Fig. 8 shows the structure of an exemplary embodiments of the high-pressure stop valve of the utility model three-way solenoid valve;
Fig. 9 shows the another kind of exemplary embodiments of the high-pressure stop valve of the utility model three-way solenoid valve;
Figure 10 and Figure 11 show other two kinds of mapped structures commonly used of the high-pressure stop valve of the utility model three-way solenoid valve;
Figure 12 shows the plan view of spool one typical structure of the utility model three-way solenoid valve;
Figure 13 is the plan view of spool shown in Figure 12, wherein shows the contour shape of spool head.
Figure 14 shows the plan view of another typical structure of spool of the utility model three-way solenoid valve;
Figure 15 is the plan view of spool shown in Figure 14, wherein shows the contour shape of spool head.
Figure 16 shows the plan view of the another typical structure of spool of the utility model three-way solenoid valve;
Figure 17 is the plan view of spool shown in Figure 16, wherein shows the contour shape of spool head.
Figure 18 schematically shows the rotary compressor with typical structure three-way solenoid valve; And
Figure 19 shows typical refrigerant system, wherein schematically shows the configuration of rotary compressor in refrigeration system with the utility model three-way solenoid valve.
Embodiment
Followingly elaborate with reference to the preferred embodiment of accompanying drawing to three-way electromagnetical valve of the present utility model.
Fig. 4 is the sectional view of the utility model one preferred embodiment, and it shows the internal structure of the utility model three-way solenoid valve, and as shown in the figure, three-way electromagnetical valve comprises electromagnetic control assembly part, valve body 6 and high-pressure stop valve part.
Referring to Fig. 4, it shows the typical structure of electromagnetic control assembly part, it comprises outer tube 13, is arranged in the electromagnetic coil 3 outside the outer tube 13 and is positioned at outer tube 13 static iron cores (fixed core) 1 and soft magnet (moving iron core) 4, wherein be provided with first elastic element such as pressure spring 2 between static iron core 1 and the moving iron core 4, an end of static iron core 1 sealed outer pipe 13.Be appreciated that electromagnetic coil both can be set to by the ac power supply driving, also can be set to drive by DC electrical source.
High-pressure stop valve partly is a kind of valve, it has this specific character, promptly when the pressurized gas of compressor enter in abutting connection with the chamber that stop valve is arranged (being B in Fig. 4), this valve is in closed condition, gas is in a relatively low pressure constantly in this chamber, this valve is then opened, and the chamber at stop valve two ends is communicated.In the present embodiment, the typical structure of high-pressure stop valve comprises body 7, is positioned the valve seat 10 in the body 7 and is arranged on spool 8 on the valve seat 10 by necking down 72, and spool 8 is used for block fluid with being sealed and matched of valve seat 10 and enters cavity C from chamber B.Be provided with elastic element such as pressure spring 9 between spool 8 and the valve seat 10, and also be provided with the limit structure such as the necking down 71 of spool on the body 7, thus the effective travel of restriction spool 8.On the other hand spool 8 and valve seat 10 with one the 3rd take over 7 be divided into valve body in conjunction with epimere that forms the second chamber B and the hypomere that is communicated with compressor suction duct, this hypomere double as the 3rd cavity C.Spool 8 is designed to such structure, the neck that promptly has the bigger head of cross section and can cooperate with seal spool, thereby when flowing medium entered the second chamber B, spool 8 was combined on the valve seat 10 at the situation lower cover that is subjected to high-pressure gas pressure, took over 7 thereby block the 3rd.Further, spool can be made by metal, plastics or polytetrafluoroethylmaterial material.
Referring again to Fig. 4 and other accompanying drawing below is described in detail the annexation between electromagnetic control assembly part, valve body, the high-pressure stop valve part.
As shown in Figure 4, the electromagnetic control assembly end that deviates from electromagnetic coil stretches among the first chamber A.Wherein, the end of moving iron core 4 is relative with the valve port 41 of valve body, and then moving iron core drives linked sealing valve mouth 41 between steel ball 5 by its end.Electromagnetic control assembly in the present embodiment is a normal close type.That is, during electromagnetic coil 3 outage, moving iron core 4 can make steel ball 5 seal valve port 41 under the elastic force effect of spring 2, during energising moving iron core 4 then under the induction field effect direction to static iron core move, thereby make valve port 41 be in opening state.In the utility model, the sealing means of valve port 41 can be varied.As an example, Fig. 5 and Fig. 6 show the sealed other two kinds of exemplary embodiment of valve port 41.In exemplary embodiments shown in Figure 5, the end of moving iron core is fixed with the Sealing that is used to seal valve port 41, and the sealing part typically is rubber pad 15.In exemplary embodiments shown in Figure 6, the end of moving iron core is fixed with the Sealing that is used to seal valve port 41, and the sealing part typically is needle 16, and it is typically made by the high hardness wear-resisting material.Those skilled in the art expect easily, and in other exemplary embodiments, electromagnetic control assembly can be arranged on other position of valve body and operationally control the connection of first chamber and second chamber, for example is arranged on the position of basic vertical connecting passage on the valve body.Further, first adapter and second is taken over and can in any space angle of valve body configuration be installed according to the installation needs of system.
Fig. 7 has provided the another kind of exemplary embodiment according to three-way solenoid valve of the present utility model.Referring to Fig. 7, in the present embodiment, electromagnetic control assembly part, valve body 6 are roughly identical with previous embodiment with the annexation of high-pressure stop valve part.An one difference is that electromagnetic control assembly in the present embodiment is an open type.That is, during electromagnetic coil 3 outages, valve port 41 is in closed condition, is in opening state during energising.As shown in Figure 7, be provided with supporter 17 in outer tube 13 lower ends, moving iron core 4 can move up and down with respect to supporter 17 with the Sealing 5 of being located at moving iron core lower end.Between Sealing 5 and supporter 17, be provided with first spring 2.When electromagnetic coil 3 cut off the power supply, first spring 2 held up moving iron core, makes Sealing 5 leave valve port 41, realized that first takes over the open-minded of 11 and second adapter 12; During electromagnetic coil 3 energisings, magnetic force promotes moving iron core 4 and moves downward, and makes Sealing 5 seal valve ports 41.
Another of present embodiment and last embodiment is not both, and it is different that 12 residing positions are taken in first adapter 11 and second, is located at respectively on the opposite flank of valve body 6.Certainly, those skilled in the art can be according to installation requirement in the concrete system, and optionally designs different position modes, for example, can make first to take over 11 and second and take over 12 angles that form 90 degree.
High-pressure stop valve also has multiple typical by way of example with being connected of valve body 6, the end that Fig. 4 shows the 3rd adapter 7 directly is fixedly connected on an end relative with the electromagnetic control assembly part in the valve body 6, high-pressure stop valve is arranged at the 3rd and takes in 7, and have certain distance with valve body 6, form the second bigger chamber B between high-pressure stop valve and the valve body 6; Fig. 7 shows another kind of Placement.In Fig. 7, the high-pressure stop valve part is connected in valve body 6 lower ends by second outer tube 73.
The internal structure of high-pressure stop valve assembly also can have multiple.Fig. 8 illustrates the exemplary embodiments of the another kind of structure of high-pressure stop valve, and itself and main difference part embodiment illustrated in fig. 4 are that what block fluid circulated is not spool, but diaphragm 8, this diaphragm is to know in the prior art, it is usually used in the diaphragm type one-way valve.This diaphragm 8 is spacing by the end face of interior step surface in second chamber and valve seat, and the 3rd takes over 7 is installed on the valve seat 10.Fig. 9 also shows the another kind of exemplary embodiments of high-pressure stop valve, itself and main difference part embodiment illustrated in fig. 4 are, spool 8 passes through the spacing steel ball 18 in its end and indirect seal valve seat 10, and the limit structure of spool 8 is the interior step surface in valve body second chamber.Figure 10 and Figure 11 show other two kinds of versions of high-pressure stop valve.Wherein, in Figure 10, the spool limit structure 10a of claw-like is stretched out in the end of valve seat, and in Figure 11, the limit structure of diaphragm is the necking down 71 of reduced on the body.
Be noted that in the utility model when 8 sealings the 3rd of spool or diaphragm took over 7, it was not positive confinement, but allows the gas leakage of suitable degree.Can from Fig. 8 to Figure 11, obviously find out, leave certain interval between spool or diaphragm 8 and second outer tube 73.Simultaneously, under the situation of using spool, can on spool, make some the suitable sizes of passing spool and the perforation of number, passage or the cutting or the sawtooth sample rag of some longitudinal extensions can also be set on the surface of contact of spool and valve seat.When making these leakage ways, the sectional area of leakage way need be set according to factors such as the concrete structure of the capacity of the pipeline that uses this three-way valve, compressor and group numbers.This sectional area design is extremely important, because the cycle length that this sectional area magnitude relationship is switched to the compressor operation state.Also realize in its leakage grooves or hole that can make correspondence on valve seat and/or spool.
Only as exemplifying, Figure 12 to Figure 17 shows three kinds of valve core structures, wherein, Figure 13, Figure 15 and Figure 17 are respectively the plan view of Figure 12, Figure 14 and spool shown in Figure 16 in the utility model, the diaphragm that plays same seal action with spool can have multiple shape, for example has the contour shape of overlooking of spool head 81 among Figure 13; The contour shape of overlooking with spool head 81 among Figure 14; And among Figure 16 spool head 81 overlook contour shape.These designs are for the ease of at valve port in 41 pent short time, when still being high pressure in the B chamber, medium wherein by spool to the 3rd leakage of taking over.
Figure 18 schematically shows the rotary compressor with typical structure three-way solenoid valve.Usually three-way solenoid valve is connected to the outside of rotary compressor, and its second adapter 12 is connected to the compressor control cylinder, and first adapter 11 is connected to the high-voltage power supply (not shown) of compressor, and the 3rd adapter 7 is connected to the low pressure source (not shown) of compressor.In conjunction with Fig. 4, when electromagnetic coil is switched on, the electromagnetic field that coil produces drives the interior moving iron core of valve body and the mutual adhesive of static magnet on valve body top, make the valve port of valve inner open-minded, the pressurized gas that entered by first passage this moment enter second chamber and make spool be pressed in valve seat under the effect of pressure reduction and seal, making wins take over second take over is communicated with and with the 3rd take over and be off state, therefore the pressurized gas that entered by first adapter enter second adapter and then make compressor carry out compression work.
When electromagnetic coil cuts off the power supply, moving iron core moves downward under spring and the gravity of self, and the valve port of valve body inside, make the high-pressure air source and second chamber isolation in the chamber of winning, in the moment of first chamber and second chamber partition, because the sealing between moving iron core and valve body and the sealing of spool and valve base chamber, make still to exist a large amount of gases to form high pressure conditions in the space between second chamber and compressor cylinder, so the leakage of spool and valve base chamber makes pressurized gas in second chamber enter the 3rd chamber and gets back to the low pressure suction port of liquid-storage container because of being cut off.Thereby after making the gas pressure balancing of second chamber and the 3rd chamber, spool is backed down by spring force and makes second chamber and the 3rd chamber be communicated with, thereby making the valve block of control cylinder is low-pressure state, makes not compression compressors rotor and compressor is not compressed of compressor valve plate.
Because the time of opening between second chamber and the 3rd chamber is that the time that compressor mode switches fully is to control by the leakage of spool and valve base chamber, thereby according to the difference of compressor capacity, can on valve seat or spool, make corresponding leakage grooves or hole and realize, promptly realize by the elastic force of control leakage rate and valve core spring.
Figure 19 shows typical refrigerant system, wherein schematically shows the configuration of rotary compressor in refrigeration system with three-way solenoid valve.As shown in figure 18, rotary compressor 110 sucks low-pressure gas from liquid-storage container mesolow suction tude, after compressing, discharge pressurized gas from steam outlet pipe 120, be loaded into liquid-storage container 160 after by vaporizer 150 entering expansion valve 140 back by condenser 130, sucked by compressor once more and compress so constantly circulation; Three-way solenoid valve of the present utility model is installed on the compressor outside, its first adapter 11 is connected to the high-voltage power supply of compressor, second adapter 12 is connected to the control cylinder of compressor, the 3rd takes over the 7 low pressure suction ports that are connected to liquid-storage container, the compression of operationally controlling compressor cylinder by the action of control three-way solenoid valve with do not compress.
In addition, for twin-tub or multi-cylinder rotary compressor, the combination of three-way solenoid valve that can be by respective numbers reaches the requirement of the different cylinder combination of control compressor, further, another can be set on valve body of same three-way solenoid valve in the same way organize first chamber and second chamber, and a plurality of first chamber can a shared bigger chamber.To reach the needs that reduce the three-way solenoid valve volume.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model.For example, the electromagnetic control assembly that provides in the specific embodiment comprises moving electromagnetic coil, iron core, static iron core and elastic element.The similar assembly or the device that one of ordinary skill in the art will readily recognize that a lot of other structures also can be used for the utility model.Specifically, as long as possess a moving iron core, can corresponding electric current and break-make between two cavitys of actuating, such Electromagnetic Control part promptly can be used for the utility model.Therefore, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (11)
1. a three-way solenoid valve is characterized in that, comprising:
Valve body (6), an end is connected with electromagnetic control assembly, and described valve inner comprises first chamber (A) and second chamber (B), and described first chamber (A) is communicated in first and takes over (11), and described second chamber (B) is communicated in second and takes over (12); Electromagnetic control assembly is used to control the break-make between described first chamber (A) and second chamber (B); And
The high-pressure stop valve assembly, be used to control described second and take over (12) and the 3rd break-make of taking between (7), wherein, when described second chamber was communicated with first chamber, described high-pressure stop valve assembly was subjected to entering the pressurized gas effect of described second chamber and blocks being communicated with of described second chamber and the 3rd chamber; And second chamber with recover being communicated with of described second chamber and the 3rd chamber after first chamber cuts off a scheduled time,
Wherein, described first takes over the high voltage terminal that (11) are connected in described compressor, and described second takes over the control cylinder that (12) are connected in described compressor, and the described the 3rd takes over the low voltage terminal that (7) are connected in described compressor.
2. three-way solenoid valve according to claim 1 is characterized in that, described electromagnetic control assembly comprises:
Electromagnetic coil (3),
Static iron core (1) is located within the described electromagnetic coil (3),
Moving iron core (4), be coupled with described static iron core (1), be provided with Sealing (5) at its end away from described static iron core (1), described moving iron core can respond the energising of described electromagnetic coil and outage and to-and-fro motion takes place, and closes or open passage between described first chamber (A) and second chamber (B) to drive described Sealing (5); And
First elastic element (2) is positioned between described static iron core (1) and the moving iron core (4).
3. three-way solenoid valve according to claim 2, it is characterized in that, described electromagnetic control assembly further comprises outer tube (13), and described electromagnetic coil (3) is around described outer tube setting, and described moving iron core (4) and static iron core (1) are placed in the described outer tube (13).
4. three-way solenoid valve according to claim 1, described high-pressure stop valve assembly comprises:
Valve seat (10) has with the described the 3rd and takes over the inner chamber that is communicated with,
Block piece (8), operate with described valve seat (10) with matching, be used to control described second and take over (12) and the 3rd break-make of taking between (7), and second elastic element (9), be located between described block piece (8) and the described valve seat (10), be used to control the folding between described block piece (8) and the described valve seat (10)
When wherein said block piece (8) is engaged on the described valve seat (10), allow gas leakage to a certain degree.
5. three-way solenoid valve according to claim 4 is characterized in that described block piece is a spool, comprises the forced section that an area is bigger, and is vertically installed in described forced section and extends the extension part of the inner chamber of described valve seat.
6. three-way solenoid valve according to claim 1, wherein, described high-pressure stop valve assembly comprises
Valve seat (10),
Diaphragm (8) is operated with described valve seat (10) with matching, and be used to control described second and take over (12) and the 3rd break-make of taking between (7), and
Second elastic element (9) is located at the inner chamber of described valve seat (10), and supports described diaphragm,
Wherein said diaphragm (8) is closed when described valve seat (10), allows gas leakage to a certain degree.
7. three-way solenoid valve according to claim 2 is characterized in that, described Sealing (5) is rubber pad (15), steel ball (18) or needle (16).
8. according to each described three-way solenoid valve of claim 4 to 5, it is characterized in that, upward or on the described valve seat (10) be provided with the leakage way that is used for gas leakage at described block piece (8), described leakage way is the hole of passing described block piece, perhaps is formed on groove or longitudinal grin on the surface of contact of described block piece and valve seat.
9. according to each described three-way solenoid valve of claim 1 to 7, it is characterized in that the described the 3rd takes over (7) is provided with necking down (71,72), to fix described valve seat and/or to limit the stroke of described spool (8).
10. three-way solenoid valve according to claim 1, it is characterized in that, the described the 3rd takes over the necking down (72) that (7) are provided with fixing described valve seat (10), described valve seat has the chamber that holds spool and the top of described chamber has a plurality of retaining pawls (10a), and described retaining pawl limits the stroke of described spool.
11. three-way solenoid valve, the described valve body (6) that comprises, it is characterized in that, described valve body comprises first chamber (A) and second chamber (B) that is communicated with (42) by the connecting passage of band valve port (41), described first chamber is provided with outer tube (13), described outer tube is provided with electromagnetic coil (3) outward, be provided with static iron core (1) and moving iron core (4) in the described outer tube, be provided with first elastic element (2) between described static iron core (1) and the moving iron core (4), the end of wherein said moving iron core is provided with the Sealing (5) of salable described valve port, described second chamber (B) is provided with second and takes over (12) and the 3rd adapter (7), in described the 3rd adapter (7) or the described the 3rd, take between (7) and second chamber (B) and also be provided with high-pressure stop valve, described high-pressure stop valve comprises the valve seat (10) with chamber, be arranged on second elastic element (9) in the described valve seat chamber, and the block piece (8) that cooperates with described valve seat, described block piece is diaphragm or spool, and described block piece (8) is blocked described second adapter (B) and is taken over being communicated with between (7) with the described the 3rd when described second takes over (B) feeding pressurized gas, and allows gas leakage to a certain degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200054153U CN201096090Y (en) | 2007-04-11 | 2007-04-11 | Electromagnetic three way valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200054153U CN201096090Y (en) | 2007-04-11 | 2007-04-11 | Electromagnetic three way valve |
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| CN201096090Y true CN201096090Y (en) | 2008-08-06 |
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| CNU2007200054153U Expired - Fee Related CN201096090Y (en) | 2007-04-11 | 2007-04-11 | Electromagnetic three way valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107395799A (en) * | 2017-07-17 | 2017-11-24 | 佛山市川东磁电股份有限公司 | One kind expands self-positioning linear electromagnetic switch |
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2007
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107395799A (en) * | 2017-07-17 | 2017-11-24 | 佛山市川东磁电股份有限公司 | One kind expands self-positioning linear electromagnetic switch |
| CN107395799B (en) * | 2017-07-17 | 2020-04-10 | 佛山市川东磁电股份有限公司 | Expansion self-positioning linear electromagnetic switch |
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Granted publication date: 20080806 Termination date: 20160411 |