CN201651345U - High-speed gas electromagnetic valve - Google Patents
High-speed gas electromagnetic valve Download PDFInfo
- Publication number
- CN201651345U CN201651345U CN2010201232554U CN201020123255U CN201651345U CN 201651345 U CN201651345 U CN 201651345U CN 2010201232554 U CN2010201232554 U CN 2010201232554U CN 201020123255 U CN201020123255 U CN 201020123255U CN 201651345 U CN201651345 U CN 201651345U
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- iron core
- moving iron
- valve seat
- electromagnetic valve
- rubber ring
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Abstract
The utility model provides a high-speed gas electromagnetic valve, which comprises a valve seat, a sealing part, a movable iron core, a fixed iron core, an electromagnetic coil, a casing, an inlet pipe joint and an outlet pipe joint. One end of the movable iron core adjacent to the fixed iron core is fixedly arranged on a pre-compressed spring; the other end of the spring is fixed onto the fixed iron core; the sealing part is fixedly arranged on the end surface of the valve seat; the sealing part is an O-shaped rubber ring; a light ball is fixedly arranged at one end of the movable iron core sealed with the valve seat; the inner diameter of the O-shaped rubber ring is smaller than the diameter of the ball; and the ball on the movable iron core tightly compresses the O-shaped rubber ring on the end surface of the valve seat to realize sealing under the action of tensile force of the spring. By fixedly arranging the sealing part on the static valve seat, the high-speed gas electromagnetic valve lightens the weight of the moving movable iron core to increase moving speed, thereby remarkably improving working frequency. Accordingly, the electromagnetic valve can be widely applied to various occasions, in particular to high-frequency field. Simultaneously, the sealing part is not easy to deform and abrade and fine in sealing performance, and opening and closing of a valve gate is rapid and agile.
Description
[technical field]
The utility model relates to a kind of gas electromagnetic valve, particularly a kind of novel gas high-speed electromagnetic valve.
[background technique]
Existing electromagnetic valve, principle all are to produce magnetic force by electromagnetic coil, drive moving iron core part and move axially along gas channels, this moving iron core by with the folding of valve seat to realize the switch of valve.During valve closing, seal by Sealing between valve seat and the moving iron core, the sealing part is generally elastic sheet rubber, the sealing sheet rubber is installed on the end face of moving iron core, the other end that should move iron core is fixed on the return spring of compression, protrude out the annular boss coaxial on the end face of valve seat with the gas channels at center, this boss end is taper, because the effect of the rebounding force of compressed return spring, moving iron core and valve seat fit together, at this moment, and the caulking gum sheet driving fit on annular boss on the valve seat end face and the moving iron core end face, make the sealing of valve seat and moving iron core, isolated with the air chamber of outside.When the outside switched on, electromagnetic force drove moving iron core and lifts off a seat, and valve seat and moving iron core be no longer sealing between the two, the gas circuit conducting, and the combustion gas of outside air chamber enters the gas channels at valve seat center; When outside dead electricity, electromagnetic force disappears, and moving iron core is because the tension force of spring is returned to the state with the valve seat closure, and at this moment, the caulking gum sheet driving fit realization valve on the annular boss on the valve seat end face and the moving iron core is closed once more.
Typical above-mentioned electromagnetic valve structure can be China's patent of invention " fuel gas high-speed electromagnetic valve for car " of CN200910112335.1 referring to application number, a kind of fuel gas high-speed electromagnetic valve for car is disclosed in this patent documentation, its structure is: a fixed core is arranged, the outer end of fixed core is fixed with shell, and the other end of shell is an end cap; The centre of fixed core is wound with electromagnetic coil; One end of fixed core is connected with liquid passage inlet joint secure fit, and the other end is with sleeve pipe and cooperates with moving iron core, and the other end of moving iron core is to be fixed on the butterfly spring, and the other end of butterfly spring is fixed with diaphragm seal; The outer end of moving iron core is a concentrating flux plate, and concentrating flux plate cooperates with end cap and be compacted, and butterfly spring is to be fixed between concentrating flux plate and the end cap; Be connected with gas circuit outlet connection secure fit on being fixed on end cap at the other end of diaphragm seal.Above-mentioned moving iron core, butterfly spring and diaphragm seal are connected to one, and wherein moving iron core is by machinery its riveted joint to be one with butterfly spring, and belleville spring and diaphragm seal to be stickup be one.Combustion gas enters from liquid passage inlet during work, and by the cavity place of the aperture on the moving iron core to belleville spring, when moving iron core was inhaled to fixed core, diaphragm seal and gas circuit outlet were open-minded, have promptly realized jet.
At present, as the solenoid valve of above-mentioned structure as a kind of bubble-tight valve, be generally used for control gaseous flow or the double simultaneously gas metering parts of doing, but such solenoid valve exists the general not high problem of frequency of okperation, general per second is no more than 50HZ, thereby its application area is restricted, many high frequency occasions can not be used.In addition, the occasion of some many cylinders work, because the restriction of solenoid valve frequency, a cylinder need be equipped with a solenoid valve and come work, such as, the Vehicular internal combustion engine of four cylinder types just needs four solenoid valves to control the work of four cylinders, because the performance of each solenoid valve or formation abrasion degree are impossible on all four, thus, each cylinder just might be because there be the inconsistency of gas flow in different electromagnetic valve.
In the above-mentioned prior art, also there is following problem in the diaphragm seal that is used to seal gas circuit: 1, because the tension force of spring is pressed on the valve seat diaphragm seal on the iron core end face, sealing between the boss of diaphragm seal and valve seat contacts the contact into point-like, after the prolonged use, on whole caulking gum sheet, can form a recessed ring-type cone tank gradually, after groove forms, contacting of sheet rubber and valve seat may not make point of contact unique and be shifted because of this groove, make both not driving fits, thereby influence sealing, make valve switch not agile, messy, influence the overall performance of solenoid valve; 2, diaphragm seal is installed on the moving element, on the promptly moving iron core, because diaphragm seal need be followed the moving iron core of rigid element and be done the impulse type rapid motion together, the rubber deformation quantity is big in the high-speed motion process, prolongation along with service time, the caulking gum sheet weares and teares easily, come off on distortion even the driven iron core, causes solenoid valve gas leakage to damage; 3, because moving iron core is a moving element, on weight, should be light as much as possible, the words that weight is big can influence movement velocity, thereby frequency of okperation is restricted, and for alleviating the quality of moving iron core, the material and the volume of driven iron core itself get on to alleviate quality on the one hand, also start with on the one hand from the caulking gum sheet, reduce the thickness of diaphragm seal, but the technology difficulty of processing ultra-thin sheet rubber is very big, simultaneously, the more easy deformation wearing and tearing of ultra-thin sheet rubber influence sealability.
[model utility content]
The technical problems to be solved in the utility model, be to provide a kind of fuel gas high-speed electromagnetic valve, can solve the caulking gum sheet easy deformation effect of attrition sealability that prior art exists, the movement velocity of heavy moving parts restriction spool is problems such as the frequency of okperation of solenoid valve, ultra-thin diaphragm seal processing technology difficulty are big.
The utility model is by solving the problems of the technologies described above by the following technical solutions: a kind of fuel gas high-speed electromagnetic valve, comprise valve seat, sealed member, moving iron core, fixed core, electromagnetic coil, housing and import and export pipe joint, described valve seat, sealed member, moving iron core and fixed core set gradually along the gas channels central axis, described moving iron core and fixed core outside are wound with described electromagnetic coil, should moving iron core and the fixed core setting that keeps at a certain distance away, should also be installed on the precompressed return spring by a moving iron core end adjacent with fixed core, the other end of this return spring is fixed on the described fixed core, wherein, described sealed member is installed on the described valve seat end face, the sealing parts are O shape rubber ring, described moving iron core is connected the spheroid of a lightweight with an end of valve base sealing, the internal diameter of this O shape rubber ring is less than the diameter of this spheroid.
Therefore, realize that with the moving iron core that Sealing in the prior art is installed in motion sealing compares, the fuel gas high-speed electromagnetic valve that the utility model is realized adopts ball-valve structure, and sealed member is installed on the actionless valve seat, has reduced moving-mass, improved movement velocity, the solenoid valve that frequency of okperation is significantly improved can be widely used in multiple occasion, high frequency field especially, simultaneously, sealed member is difficult for formation abrasion, good seal performance, makes the switch of valve agile rapidly.
More preferably, described spheroid is that lightweight material is made, and owing to the spheroid light weight that lightweight material is made, further alleviated the total quality of moving iron core, thereby alleviating of moving-mass has improved movement velocity and frequency of okperation.
Further, the holding cavity that described spheroid is provided with by described moving iron core end face is embedded on moving iron core, also establish one in this holding cavity and be used for spacing circular table, make spheroid expose a hemisphere that is used for the driving fit of described O shape rubber ring, this is used for the setting of spacing circular table, make spheroid just expose about half spheroid, spheroid is absorbed in the O shape circle when preventing to seal, and causes moving iron core to be difficult for return.
Further, described O shape rubber ring is embedded on valve seat by the adaptive groove structure of one and this O shape rubber ring shape that described valve seat end face is provided with.
More preferably, described fuel gas high-speed electromagnetic valve also comprises a setting sleeve, and this setting sleeve is positioned at moving iron core external peripheral surface described moving iron core is wrapped in.
Further, the material of described moving iron core is the high-frequency electromagnetic material, and this electromagnetic material high frequency magnetic loss is little, the permeability height, and the saturation flux amount is big.
[description of drawings]
In conjunction with specific embodiments the utility model is further described with reference to the accompanying drawings.
Fig. 1 is the structural representation of a kind of fuel gas high-speed electromagnetic valve described in the utility model.
Fig. 2 is the exploded perspective view of a kind of fuel gas high-speed electromagnetic valve described in the utility model.
[embodiment]
Shown in Fig. 1-2, a kind of fuel gas high-speed electromagnetic valve that the utility model is related, comprise valve seat 1, sealed member 2, moving iron core 3, fixed core 4, electromagnetic coil 5, setting sleeve 6, concentrating flux plate 7, return spring 8, housing 9 and import and export pipe joint 10, described valve seat 1, sealed member 2, moving iron core 3 and fixed core 4 set gradually along gas channels 11 central axis, described moving iron core 3 and fixed core 4 outsides are wound with described electromagnetic coil 5, should moving iron core 3 and fixed core 4 setting that keeps at a certain distance away, should moving iron core 3 adjacent with fixed core 4 end also is installed on the precompressed return spring 8, the other end of this return spring 8 is fixed on the described fixed core 4, described sealed member 2 is installed on described valve seat 1 end face, sealing parts 2 are O shape rubber ring, described moving iron core 3 is connected the spheroid 12 that a lightweight material is made with an end of valve seat 1 sealing, this spheroid 12 carries out surface finishment to be handled, the internal diameter of this O shape rubber ring 2 is less than the diameter of this spheroid 12, under the tension force effect of spring, spheroid 12 on the moving iron core 3 compresses the O shape rubber ring 2 on valve seat 1 end face, realize sealing, isolated with the air chamber 13 of outside.In the present embodiment, described O shape rubber ring 2 is accurate O shape rubber ring, described spheroid 12 is the aluminium ball, these aluminium ball 12 chrome-faceds, described spheroid 12 is embedded on moving iron core 3 by the holding cavity 301 that described moving iron core 3 end faces are provided with, also establish one in this holding cavity 301 and be used for spacing circular table 302, make spheroid 12 expose a hemisphere that is used for 2 driving fits of described O shape rubber ring.Described O shape rubber ring 2 is embedded on valve seat 1 by the adaptive groove structure 101 of one and these O shape rubber ring 2 shapes that described valve seat 1 end face is provided with.Described setting sleeve 6 is made by copper material, and this setting sleeve 6 is positioned at moving iron core 3 external peripheral surfaces described moving iron core 3 is wrapped in, and Wear-resistant Treatment, hard chromium plating are carried out in this setting sleeve 6 and described moving iron core 3 surfaces.The material of described moving iron core 3 is the high-frequency electromagnetic material, this electromagnetic material permeability height, and the saturation flux amount is big.
The working principle of a kind of fuel gas high-speed electromagnetic valve that the utility model is realized is as follows: 1, gas circuit closed condition: because the effect of spring force, spheroid 12 on the moving iron core 3 and O shape rubber ring 2 driving fits on the valve seat 1, at this moment, gas channels 11 is isolated with outside air chamber 13, valve is closed condition, as long as the coil no electric circuit in the electromagnetic coil 5, this state promptly remains unchanged.2, gas circuit on state: outside giving, add an electrical pulse promptly for electromagnetic coil 5, coil produces magnetic field closes up iron core 3 and fixed core 4 mutually, at this moment, moving iron core 3 promptly drives the aluminium ball 12 that return spring 8 on it pulls down the moved end head, makes aluminium ball 12 leave O shape rubber ring 2, and air flue becomes conducting, the combustion gas of outside air chamber 13 enters the gas channels 11 at valve seat 1 center, and valve transforms to opening state from closed condition.Eventually the above, when outside once more during dead electricity, electromagnetic force disappears, moving iron core 3 is because the tension force of spring is returned to the state with valve seat 1 closure, at this moment, the O shape rubber ring 2 that aluminium ball 12 on the moving iron core 3 is pressed on valve seat 1 end face is closed valve once more, and folding so repeatedly realizes high-frequency impulse formula switch.
A kind of fuel gas high-speed electromagnetic valve that the utility model is realized has following advantage:
1, motion fast. The high-speed electromagnetic valve that the utility model is realized is owing to move to seal member on the fixed part from moving component, be that driven iron core moves on the valve seat, so that the quality of the moving iron core of motion alleviates, thereby can improve vibration frequency, total moving-mass of moving iron core can reach the above response frequency of per second 200HZ less than 2.5 grams in the present embodiment. The raising of frequency holds the balance for the effect of magnetic valve, greatly widened range of application, can be applied to the multiple occasion that need to control with the pulse width size gas flow, such as fields such as automobile, weaving, machineries, especially needing to may be used on the gas combustion automobile field of high-frequency high-speed magnetic valve, in this field, fuel gas is as the alternative energy source of gasoline, diesel oil etc., effectively fuel savings expense, and minimizing CO, NO2Discharging Deng pernicious gas. The high-speed electromagnetic valve that the utility model is realized can be used as the fuel metering critical component that multi-cylinder order fuel sprays gas internal-combustion engine, the operating frequency that realizes is 200HZ, comprehensive response time 0.75ms, but so with the magnetic valve fuel of a plurality of cylinders of time-sharing measurement just, such as, the Vehicular internal combustion engine of four cylinder types just only needs a magnetic valve to control the work of four cylinder fuel meterings. Therefore, just do not exist because control fuel metering and have the inconsistent situation of each cylinder gas supply flow with a plurality of different magnetic valves, can improve the uniformity of each cylinder fired state of combustion gas multi-cylinder engine and the reliability of gaseous fuel metering unit. Simultaneously, reduce parts, save cost, maintenance rate is corresponding decline also.
2, good seal performance, the seal member long service life. On the one hand, because the effect of spring force, in the process of O-ring seals and orbicule sealing, at first be the point-like contact, then the contact area of sphere and O shape circle increases gradually, and this simultaneously contacts and is flexible contact, and because the bigger sealing means of this contact-making surface, so that sealing is very good, and in use, the rate of wear between O-ring seals and the orbicule is very little; On the other hand, seal member is installed on the fixed valve seat, need not do high-speed motion, so that the deformation quantity of rubber reduces, rubber itself is easy to wear coming off not, and is durable in use, do not affect air-tightness. So magnetic valve of the present utility model in use sealing property is fine, repeatability is high, makes valve switch agile.
3, seal member adopts the accurate O-ring seals that is easy to buy on the market, does not need special processing, has fundamentally solved the problem of processing technology difficulty, and seal member interchangeability is good simultaneously, has saved production and processing and maintenance cost.
Claims (6)
1. fuel gas high-speed electromagnetic valve, comprise valve seat, sealed member, moving iron core, fixed core, electromagnetic coil, housing and import and export pipe joint, described valve seat, sealed member, moving iron core and fixed core set gradually along the gas channels central axis, described moving iron core and fixed core outside are wound with described electromagnetic coil, should moving iron core and the fixed core setting that keeps at a certain distance away, should also be installed on the precompressed return spring by a moving iron core end adjacent with fixed core, the other end of this return spring is fixed on the described fixed core, it is characterized in that: described sealed member is installed on the described valve seat end face, the sealing parts are O shape rubber ring, described moving iron core is connected the spheroid of a lightweight with an end of valve base sealing, the internal diameter of this O shape rubber ring is less than the diameter of this spheroid.
2. a kind of fuel gas high-speed electromagnetic valve according to claim 1 is characterized in that: described spheroid is that lightweight material is made.
3. a kind of fuel gas high-speed electromagnetic valve according to claim 1 and 2, it is characterized in that: the holding cavity that described spheroid is provided with by described moving iron core end face is embedded on moving iron core, also establish one in this holding cavity and be used for spacing circular table, make spheroid expose a hemisphere that is used for the driving fit of described O shape rubber ring.
4. a kind of fuel gas high-speed electromagnetic valve according to claim 1 and 2 is characterized in that: described O shape rubber ring is embedded on valve seat by the adaptive groove structure of one and this O shape rubber ring shape that described valve seat end face is provided with.
5. a kind of fuel gas high-speed electromagnetic valve according to claim 1 and 2 is characterized in that: described fuel gas high-speed electromagnetic valve also comprises a setting sleeve, and this setting sleeve is positioned at moving iron core external peripheral surface described moving iron core is wrapped in.
6. a kind of fuel gas high-speed electromagnetic valve according to claim 1 and 2 is characterized in that: the material of described moving iron core is the high-frequency electromagnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201232554U CN201651345U (en) | 2010-03-03 | 2010-03-03 | High-speed gas electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201232554U CN201651345U (en) | 2010-03-03 | 2010-03-03 | High-speed gas electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651345U true CN201651345U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201232554U Expired - Fee Related CN201651345U (en) | 2010-03-03 | 2010-03-03 | High-speed gas electromagnetic valve |
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| Country | Link |
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| CN (1) | CN201651345U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141819A (en) * | 2014-08-10 | 2014-11-12 | 安徽省宁国新鼎汽车零部件有限公司 | Quick-response electromagnetic switch valve |
| CN104214403A (en) * | 2014-08-10 | 2014-12-17 | 安徽省宁国新鼎汽车零部件有限公司 | High-speed response direct-acting type electromagnetic switching valve |
| CN105202251A (en) * | 2015-10-23 | 2015-12-30 | 宁波星宇国均汽车电磁阀有限公司 | Two-position three-way switch electromagnetic valve |
-
2010
- 2010-03-03 CN CN2010201232554U patent/CN201651345U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141819A (en) * | 2014-08-10 | 2014-11-12 | 安徽省宁国新鼎汽车零部件有限公司 | Quick-response electromagnetic switch valve |
| CN104214403A (en) * | 2014-08-10 | 2014-12-17 | 安徽省宁国新鼎汽车零部件有限公司 | High-speed response direct-acting type electromagnetic switching valve |
| CN104214403B (en) * | 2014-08-10 | 2017-02-01 | 安徽省宁国新鼎汽车零部件有限公司 | High-speed response direct-acting type electromagnetic switching valve |
| CN105202251A (en) * | 2015-10-23 | 2015-12-30 | 宁波星宇国均汽车电磁阀有限公司 | Two-position three-way switch electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20120303 |