CN103388704A - Straight-through high-speed electromagnetic valve - Google Patents

Straight-through high-speed electromagnetic valve Download PDF

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Publication number
CN103388704A
CN103388704A CN2013103244003A CN201310324400A CN103388704A CN 103388704 A CN103388704 A CN 103388704A CN 2013103244003 A CN2013103244003 A CN 2013103244003A CN 201310324400 A CN201310324400 A CN 201310324400A CN 103388704 A CN103388704 A CN 103388704A
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CN
China
Prior art keywords
iron core
valve seat
moving iron
straight
electromagnetic coil
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Pending
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CN2013103244003A
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Chinese (zh)
Inventor
廖义德
葛文明
危则
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HUBEI TSUNG TECHNOLOGY Co Ltd
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HUBEI TSUNG TECHNOLOGY Co Ltd
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Priority to CN2013103244003A priority Critical patent/CN103388704A/en
Publication of CN103388704A publication Critical patent/CN103388704A/en
Pending legal-status Critical Current

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Abstract

The invention provides a straight-through high-speed electromagnetic valve. The straight-through high-speed electromagnetic valve comprises a valve seat, a guide tube, a fixed iron core, a moving iron core and an electromagnetic coil, wherein the fixed iron core and the moving iron core are coaxially placed in the guide tube, and the fixed iron core is inserted into the guide tube through a fixed iron core sealing ring and is fixed; a spring is arranged in an outlet end, facing to the moving iron core, of the guide tube, one end of the spring is clamped into the moving iron core, and the other end of the spring is pressed inside the valve seat; and the guide tube is inserted inside the electromagnetic coil, the electromagnetic coil and the guide tube are fixed through nuts, the center of the moving iron core is provided with a center hole, a notch is formed in an outlet end face of the moving iron core, transverse through holes are formed in the periphery of the notch and are communicated with the center hole, and a sealing sheet is arranged at the end part of the notch; and a capacitor is in parallel connection with the electromagnetic coil. The straight-through high-speed electromagnetic valve has the beneficial effects that the center hole of the moving iron core is communicated with the transverse through holes, so that the resistance to motion of the moving iron core is reduced, and the valve response time of the electromagnetic coil is accelerated; and the capacitor is in parallel connection with the electromagnetic coil, so that the reverse electromotive force of the electromagnetic coil is delayed and reduced, and the interference is reduced.

Description

The straight-through type high-speed electromagnetic valve
Technical field
The invention belongs to the Solenoid Valve Technology field, be specifically related to a kind of straight-through type high-speed electromagnetic valve.
Background technique
At present, known Through solenoid valve structure is by inlet union, outlet connection, and valve body, be enclosed within the electromagnetic coil of valve body outside, the fixed core of valve inner and movable core, and spring and valve seat form.Do not stop to such an extent that electric and dead electricity realizes the quick opening and closing of high-speed electromagnetic valve by electromagnetic coil, thereby reach the purpose of controlling flow.But,, because electromagnetic valve coil is inductance element, have the recoil electromotive force during energising, can cause the opening time to postpone.Simultaneously, the resistance to motion of general high speed electromagnetic valve actuation iron core is larger.The response time that these have all increased high-speed electromagnetic valve, affected the combination property of solenoid valve.
Summary of the invention
The technical problem to be solved in the present invention is, large in order to overcome existing high speed electromagnetic valve actuation iron core resistance to motion, the problem that response time is slow, a kind of straight-through type high-speed electromagnetic valve is provided, this solenoid valve can not only reduce moving iron core resistance to motion, improve the solenoid valve speed of response, and can extension coil working life.
The present invention solves the problems of the technologies described above the technological scheme that adopts to be:
The straight-through type high-speed electromagnetic valve, comprise valve seat, guide pipe, fixed core, moving iron core and electromagnetic coil, and fixed core, moving iron core is coaxial is placed in guide pipe, and fixed core inserts in guide pipe fixing by the fixed core seal ring; Guide pipe is provided with spring in the outlet end of moving iron core, spring one end is stuck on moving iron core, and the other end is pressed in valve seat inside; It is inner that guide pipe inserts electromagnetic coil, and electromagnetic coil is fixed by nut and guide pipe, and described moving core center has center hole, the exit end face of moving iron core offers notch, the surrounding of notch offers cross through hole, and cross through hole communicates with center hole, and the end of notch is provided with diaphragm seal.
Press such scheme, be parallel with an electric capacity on described electromagnetic coil.
Press such scheme, be provided with cushion pad between described fixed core and moving iron core, in the aperture that cushion pad insertion fixed core internal end surface is offered.
Press such scheme, described valve seat dwindles gradually towards the end face opening of diaphragm seal direction.
Press such scheme, described valve seat is towards the tapered cylindrical surface structure of the end face of diaphragm seal direction.
Press such scheme, the outer ring of described valve seat offers some valve seat through-holes, and the end face of valve seat through-hole is taper, and the cone point of tapered end face is towards the diaphragm seal direction.
Press such scheme, described valve seat through-hole is provided with eight, around the outer ring of valve seat, is evenly arranged.
Press such scheme, on described valve seat, valve seat insert is arranged.
Press such scheme, guide pipe is large, little towards the bore of fixed core one end towards the bore of moving iron core one end.
Press such scheme, described valve seat insert and fixed core seal ring are the O RunddichtringO.
Working principle of the present invention: under the elastic force effect of spring, moving iron core is away from valve seat.When electromagnetic coil was switched on, greater than spring force, moving iron core was to the motion of valve seat direction due to electromagnetic force, and the diaphragm seal end face is squeezed on valve seat tapered cylinder face, thus the cut-off valve block hole.Offer center hole by the center at moving iron core, then offer cross through hole in the surrounding of moving iron core outlet end notch, center hole communicates with cross through hole, for the medium circulation, moving like this iron core is in guide pipe during the high speed back and forth movement, guide pipe internal pressure and valve seat internal pressure equate, reduced the resistance to motion of moving iron core, the response time of solenoid valve accelerates, by PWM(Pulse Width Modulation Control) control voltage, realize the uninterrupted opening and closing of solenoid valve, thus the control media flow.
Simultaneously, electric capacity in parallel on electromagnetic coil, the voltage at electric capacity two ends can not suddenly change, owing to being equivalent to inductive element after the electromagnetic coil energising, and just can delay and reduce the inverse electromotive force of electromagnetic coil after upper electric capacity, thereby accelerate the response time of high-speed electromagnetic valve, extend the working life of high-speed electromagnetic valve; And after also upper electric capacity, electric current is more stable, and electric capacity itself can also play the jamming-proof effect of filtering.
The present invention has following beneficial effect:
1, communicate with the cross through hole of moving iron core outlet end notch by the center hole in moving core center, for the medium circulation, realize that guide pipe internal pressure and valve seat internal pressure equate, thereby reduce the resistance to motion of moving iron core, accelerate the response time of solenoid valve, solved existing high-speed electromagnetic valve resistance to motion larger, the problem that the response time is slow;
2, high-speed electromagnetic valve is realized closing and opening by the diaphragm seal of moving iron core outlet end and the contacting of tapered cylinder face of valve seat, is convenient to the abundant sealed electromagnetic valve of diaphragm seal, does not leak outside, favorable sealing property;
3, also upper electric capacity delays and reduces the inverse electromotive force of electromagnetic coil, and the response time of further accelerating high-speed electromagnetic valve, electric capacity itself can also play the jamming-proof effect of filtering simultaneously;
4, high-speed electromagnetic valve is simple in structure, and movement parts is few, and cost is low.
Description of drawings
Fig. 1 is the structural representation of straight-through type high-speed electromagnetic valve of the present invention;
Fig. 2 is the right elevation of Fig. 1;
In figure, 1. electromagnetic coil, 2. fixed core, 3. guide pipe, 4. cushion pad, 5. moving iron core, 51. center hole, 52. cross through hole, 53. notches, 6. spring, 7. diaphragm seal, 8. valve seat, 81. valve seat through-hole, 9. valve seat insert, 10. fixed core seal ring, 11. electric capacity, 12. nuts.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
With reference to Fig. 1 ~ shown in Figure 2, straight-through type high-speed electromagnetic valve of the present invention, comprise valve seat 8, guide pipe 3, fixed core 2, moving iron core 5 and electromagnetic coil 1, fixed core 2, moving iron core 5 is coaxial is placed in guide pipe 3, and it is interior fixing that fixed core 2 inserts guide pipes 3 by fixed core seal ring 10; Guide pipe 3 is provided with spring 6 in the outlet end of moving iron core 5, spring 6 one ends are stuck on moving iron core 5, and the other end is pressed in valve seat 8 inside; Guide pipe 3 inserts electromagnetic coil 1 inside, electromagnetic coil 1 is by the special flat serrated nut of the little hexagonal of nut 12() and guide pipe 3 fix, described moving iron core 5 centers have center hole 51, the exit end face of moving iron core 5 offers notch 53, the surrounding of notch 53 offers cross through hole 52, cross through hole 52 communicates with center hole 51, and for the medium circulation, the end of notch 53 is provided with the outlet of diaphragm seal 7(assurance solenoid valve and can seals reliably).
Be parallel with an electric capacity 11 on described electromagnetic coil 2.
Be provided with cushion pad 4 between described fixed core 2 and moving iron core 5, in the aperture that cushion pad 4 insertion fixed core 2 internal end surface are offered, cushion pad 4 can prevent collision generation wearing and tearing and heating mutually between fixed core 2, moving iron core 5, also can be used for adjusting the stroke of moving iron core 5 simultaneously.
Described valve seat 8 dwindles gradually towards the end face opening of diaphragm seal 7 directions, thereby while making moving iron core 5 back and forth movement, diaphragm seal 7 is the opening and closing solenoid valve reliably.
Described valve seat 8 is towards the tapered cylindrical surface structure of end face of diaphragm seal 7 directions.
The outer ring of described valve seat 8 offers some valve seat through-holes 81, and the end face of valve seat through-hole 81 is taper, and the cone point of tapered end face is towards diaphragm seal 7 directions.
Described valve seat through-hole 81 is provided with eight, around the outer ring of valve seat 8, is evenly arranged, and different by the mode of interface, these valve seat through-holes 81 can be used as inlet hole, also can be used as air outlet hole.
On described valve seat 8, valve seat insert 9 is arranged, when valve seat insert 9 is connected with corollary equipment for valve seat 8, prevent from revealing.
Described guide pipe 3 is large towards the bore of moving iron core 5 one ends, towards the bore little (whole stepped) of fixed core 2 one ends.
Described valve seat insert 9 and fixed core seal ring 10 are the O RunddichtringO.
When the present invention worked, under the elastic force effect of spring 6, moving iron core 5 was away from valve seat 8.When electromagnetic coil 1 energising, greater than spring force, moving iron core 5 is to valve seat 8 direction motions due to electromagnetic force, and diaphragm seal 7 end faces are squeezed on valve seat 8 tapered cylinder faces, thus cut-off valve block hole 81.Offer center hole 51 by the center at moving iron core 5, then offer cross through hole 52 in the surrounding of moving iron core 5 outlet end notches 53, center hole 51 communicates with cross through hole 52, for the medium circulation, moving like this iron core 5 is when the interior high speed back and forth movement of guide pipe 3, guide pipe 3 internal pressures and valve seat 8 internal pressures equate, reduced the resistance to motion of moving iron core 3, accelerate the response time of solenoid valve, by PWM(Pulse Width Modulation Control) control voltage, realize the uninterrupted opening and closing of solenoid valve, thus the control media flow.
Simultaneously, electric capacity 11 in parallel on electromagnetic coil 1, the voltage at electric capacity 11 two ends can not suddenly change, owing to being equivalent to inductive element after electromagnetic coil 1 energising, and just can delay and reduce the inverse electromotive force of electromagnetic coil 1 after upper electric capacity 11, thereby further accelerate the response time of high-speed electromagnetic valve, extend the working life of high-speed electromagnetic valve; And after also upper electric capacity, electric current is more stable, and electric capacity 11 itself can also play the jamming-proof effect of filtering.
The foregoing is only preferred embodiment of the present invention,, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (9)

1. straight-through type high-speed electromagnetic valve, comprise valve seat (8), guide pipe (3), fixed core (2), moving iron core (5) and electromagnetic coil (1), fixed core (2), moving iron core (5) is coaxial is placed in guide pipe (3), and fixed core (2) inserts in guide pipe (3) fixing by fixed core seal ring (10); Guide pipe (3) is provided with spring (6) in the outlet end of moving iron core (5), spring (6) one ends are stuck on moving iron core (5), and the other end is pressed in valve seat (8) inside; Guide pipe (3) inserts electromagnetic coil (1) inside, electromagnetic coil (1) is fixing by nut (12) and guide pipe (3), it is characterized in that: described moving iron core (5) center has center hole (51), the exit end face of moving iron core (5) offers notch (53), the surrounding of notch (53) offers cross through hole (52), cross through hole (52) communicates with center hole (51), and the end of notch (53) is provided with diaphragm seal (7).
2. straight-through type high-speed electromagnetic valve as claimed in claim 1, is characterized in that: be parallel with an electric capacity (11) on described electromagnetic coil (2).
3. straight-through type high-speed electromagnetic valve as claimed in claim 1, is characterized in that: be provided with cushion pad (4) between described fixed core (2) and moving iron core (5), in the aperture that cushion pad (4) insertion fixed core (2) internal end surface is offered.
4. straight-through type high-speed electromagnetic valve as claimed in claim 1, it is characterized in that: described valve seat (8) dwindles gradually towards the end face opening of diaphragm seal (7) direction.
5. straight-through type high-speed electromagnetic valve as claimed in claim 4, it is characterized in that: described valve seat (8) is towards the tapered cylindrical surface structure of end face of diaphragm seal (7) direction.
6. straight-through type high-speed electromagnetic valve as claimed in claim 1, it is characterized in that: the outer ring of described valve seat (8) offers some valve seat through-holes (81), and the end face of valve seat through-hole (81) is taper, and the cone point of tapered end face is towards diaphragm seal (7) direction.
7. straight-through type high-speed electromagnetic valve as claimed in claim 6, it is characterized in that: described valve seat through-hole (81) is provided with eight, around the outer ring of valve seat (8), is evenly arranged.
8. straight-through type high-speed electromagnetic valve as claimed in claim 1, is characterized in that: valve seat insert (9) is arranged on described valve seat (8).
9. straight-through type high-speed electromagnetic valve as claimed in claim 1 is characterized in that: guide pipe (3) is large, little towards the bore of fixed core (2) one ends towards the bore of moving iron core (5) one ends.
CN2013103244003A 2013-07-30 2013-07-30 Straight-through high-speed electromagnetic valve Pending CN103388704A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108278401A (en) * 2018-01-23 2018-07-13 谭凯诺 A kind of porous output high-speed electromagnetic valve
CN110857740A (en) * 2018-08-22 2020-03-03 朋程科技股份有限公司 Electromagnetic valve structure for vehicle

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2036230U (en) * 1988-10-07 1989-04-19 核工业部第四设计研究院 High-speed electromagnetic valve
CN2137814Y (en) * 1992-10-22 1993-07-07 蔡礼君 Hybrid electromagnet
JPH09126346A (en) * 1995-10-31 1997-05-13 Sanwa Seiki Co Ltd Solenoid valve
CN2632446Y (en) * 2003-07-18 2004-08-11 无锡威孚集团有限公司 High-speed electromagnetic valve driving energy recovering circuit
CN2937707Y (en) * 2006-08-25 2007-08-22 徐海承 Drive device of high speed magnetic valve
CN201963893U (en) * 2010-12-31 2011-09-07 中国航天科技集团公司第六研究院第十一研究所 Two-position two-way high-speed switch valve
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
CN102588612A (en) * 2011-01-18 2012-07-18 武汉东江阀业制造有限公司 Two-way multifunctional electromagnetic valve
CN202768893U (en) * 2012-07-26 2013-03-06 东风汽车有限公司 High-speed electromagnetic valve core
CN203442284U (en) * 2013-07-30 2014-02-19 湖北天雄科技有限公司 Straight-through type high-speed electromagnetic valve

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2036230U (en) * 1988-10-07 1989-04-19 核工业部第四设计研究院 High-speed electromagnetic valve
CN2137814Y (en) * 1992-10-22 1993-07-07 蔡礼君 Hybrid electromagnet
JPH09126346A (en) * 1995-10-31 1997-05-13 Sanwa Seiki Co Ltd Solenoid valve
CN2632446Y (en) * 2003-07-18 2004-08-11 无锡威孚集团有限公司 High-speed electromagnetic valve driving energy recovering circuit
CN2937707Y (en) * 2006-08-25 2007-08-22 徐海承 Drive device of high speed magnetic valve
CN201963893U (en) * 2010-12-31 2011-09-07 中国航天科技集团公司第六研究院第十一研究所 Two-position two-way high-speed switch valve
CN102588612A (en) * 2011-01-18 2012-07-18 武汉东江阀业制造有限公司 Two-way multifunctional electromagnetic valve
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
CN202768893U (en) * 2012-07-26 2013-03-06 东风汽车有限公司 High-speed electromagnetic valve core
CN203442284U (en) * 2013-07-30 2014-02-19 湖北天雄科技有限公司 Straight-through type high-speed electromagnetic valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108278401A (en) * 2018-01-23 2018-07-13 谭凯诺 A kind of porous output high-speed electromagnetic valve
CN110857740A (en) * 2018-08-22 2020-03-03 朋程科技股份有限公司 Electromagnetic valve structure for vehicle

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Application publication date: 20131113

RJ01 Rejection of invention patent application after publication