CN102330834A - Electromagnetic valve - Google Patents
Electromagnetic valve Download PDFInfo
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- CN102330834A CN102330834A CN201110263645A CN201110263645A CN102330834A CN 102330834 A CN102330834 A CN 102330834A CN 201110263645 A CN201110263645 A CN 201110263645A CN 201110263645 A CN201110263645 A CN 201110263645A CN 102330834 A CN102330834 A CN 102330834A
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- iron core
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Abstract
The invention discloses an electromagnetic valve belonging to the field of valves and comprising a main valve and a pilot valve, wherein the main valve comprises a valve seat, and a piston accommodated in an inner cavity of the valve seat; the valve seat is provided with an input hole, an output hole and a pilot valve installing hole which are communicated with the inner cavity; the lower end part of the piston is sealed and covered on the output hole, the upper end part of the piston is provided with a groove, the bottom of the groove is provided with a piston valve hole communicated with the output hole; the pilot valve comprises a spring, a coil, a guide sleeve arranged on the pilot valve installing hole, a static iron core and a movable iron core, wherein the static iron core and the movable iron core are respectively arranged at the upper end and the lower end of an inner cavity of the guide sleeve, the coil is sleeved on the outer surface of the guide sleeve, the lower port of the guide sleeve is provided with a limit baffle ring, the lower end part of the movable iron core penetrates through a valve hole of a sealing piston of the limit baffle ring, the movable iron core is provided with an axial step through hole and a transverse hole which are penetrated, and the spring is arranged at the upper section of the step through hole and abuts and supports against the static iron core. The electromagnetic valve is characterized in that a transverse groove is arranged on the lower end face of the limit baffle ring, thus medium channel area between the input hole and the groove is reduced, valve-opening capacity is improved and energy-saving effect is realized.
Description
Technical field
The invention belongs to valve field, especially relevant with a kind of solenoid valve.
Background technique
Application number is that 200810096924.0 application for a patent for invention file discloses a kind of solenoid valve; This a kind of solenoid valve comprises the valve seat with solid of rotation inner chamber, the piston that can in the inner chamber of this valve seat, axially move, but the pilot sleeve that is connected with said valve seat one end, cooperate static iron core with said pilot sleeve, in said pilot sleeve axially reciprocating moving iron core and at domestic moving iron core of said pilot sleeve and the spring between the static iron core; Said valve seat is provided with a primary valve, and said static iron core is fixedly connected with said pilot sleeve, and said pilot sleeve pipe is used for fixedly that an end of static iron core is a hatch frame; The other end has the limit bottom surface that makes the piston location, and said valve seat underpart has the outer pipe interface, and its sidewall also is provided with the inlet tube interface; Piston comprises upper end portion and underpart, and the underpart diameter is less than the upper end portion, and lower-end cap is encapsulated in the primary valve of valve seat; The upper end of upper end portion has a groove; In this groove, offer first boss, on said first boss, be provided with the piston valve port, the central position of this piston is an axial hole; The axial direction of the said piston in upper edge, bottom surface of groove is offered at least one equalizing orifice in said upper end portion; The diameter of moving iron core lower end is less than the diameter of said moving iron core main body, and the leading portion of described underpart has a holding part, in this holding part, is connected with a valve body that matches and seal with said piston valve port.
When such solenoid valve used, inlet tube input high-pressure medium was at the closed electromagnetic valve state; The piston lower end cap seal is in the delivery outlet aperture of valve seat, and the body cap of the underpart of moving iron core is encapsulated in the piston valve port, and high-pressure medium gets into said groove through the gap between equalizing orifice and piston and the valve seat; The pressure balance that the piston two ends are received in the time of need opening solenoid valve, moves the valve body that makes the underpart and throws off the piston valve port on the moving iron core; High-pressure medium in the groove enters outer pipe through the axial hole of the central position of piston, and during greater than equalizing orifice cross-section area and interval area sum, the interior pressure of groove can reduce at the axial hole cross-section area; Move on the piston and throw off the delivery outlet aperture; In the time of need closing solenoid valve, moving iron core moves down, and the body cap of the underpart of moving iron core is encapsulated in the piston valve port and piston is produced downforce; High-pressure medium gets into said groove through equalizing orifice, accelerates piston and moves down speed.The axial hole sectional area of the central position of piston is big more; Driving the coil power of moving on the moving iron core will be big more, and power consumption will be big more, owing to there is equalizing orifice; Then the axial hole sectional area is still bigger, so the power consumption of a kind of solenoid valve of this type still is relatively large.And it is expensive that the processing of equalizing orifice also can increase processing.
Summary of the invention
The object of the invention just provides a kind of power consumption and the lower solenoid valve of cost.
For this reason; The present invention adopts following technological scheme: a kind of solenoid valve, comprise main valve and pilot valve, and main valve comprises valve seat with inner chamber, be placed in this valve base cavity and can make the piston of axial motion; Valve seat is provided with input hole, delivery outlet and the pilot valve mounting hole that all is communicated with inner chamber; The pilot valve mounting hole site is in the upper end of valve base cavity, its center line and piston motion direction in the same way, the delivery outlet aperture be positioned at valve base cavity the bottom surface and with the piston lower end surface over against; Piston comprises upper end portion and underpart, and the underpart diameter is less than the upper end portion, and the underpart is covered in the delivery outlet aperture, and the upper end portion is provided with a groove, the piston valve opening that the bottom portion of groove setting is communicated with the valve seat delivery outlet; Described pilot valve comprises pilot sleeve, static iron core, moving iron core, spring and coil, and pilot sleeve is installed on the pilot valve mounting hole, and mounting coil is in the pilot sleeve outer surface; Pilot sleeve lower end oral area is provided with spacing back-up ring, and spacing back-up ring center is a through hole, and static iron core is fixedly installed in pilot sleeve inner chamber upper end; Moving iron core is located in pilot sleeve inner chamber lower end; The diameter of moving iron core lower end is less than the diameter of moving iron core main body, and moving end, iron core lower end is provided with spool, and the central through bore of spacing back-up ring is passed in moving iron core lower end; The spool sealing that matches with said piston valve opening; Moving iron core is provided with the axial step through hole, and moving iron core lower end is provided with the transverse holes that connects with said ladder hole, makes high-pressure medium can be input to pilot sleeve inner chamber between moving iron core and the static iron core; Described ladder hole epimere diameter is greater than hypomere, and described spring is arranged at the ladder hole epimere and connects with static iron core; It is characterized in that: described spacing back-up ring lower end surface is provided with cross groove; When described piston upper-end surface and the applying of spacing individual pen lower end surface, can form the medium channel of groove from the piston outer side surface to the piston upper-end surface; High-pressure medium gets into said groove through cross groove; When closing a kind of solenoid valve, accelerate piston and move down speed.
When solenoid valve used, input hole connected supplying tube input high-pressure medium, and delivery outlet connects output tube; At the closed electromagnetic valve state, the piston lower end cap seal is in the delivery outlet aperture of valve seat, and the cartridge cover of the underpart of moving iron core is encapsulated in piston valve opening aperture; High-pressure medium gets into said groove through the gap between piston and the valve seat, and the pressure balance that the piston two ends are received is in the time of need opening solenoid valve; Move the spool that makes the underpart on the moving iron core of coil drive and throw off the piston valve port, the high-pressure medium in the groove enters output tube through the piston valve opening of piston, at piston valve opening cross-section area during greater than the interval area between piston and the valve seat; Pressure in the groove can reduce, and moves on the piston and throws off the delivery outlet aperture, in the time of need closing solenoid valve; Moving iron core moves down; The cartridge cover of the underpart of moving iron core is encapsulated in the piston valve port and piston is produced downforce, and high-pressure medium gets into the groove on the said piston through gap between piston and the valve seat and described cross groove, accelerates piston and moves down speed.
As to technique scheme replenish and perfect, the present invention also comprises following technical characteristics.
The spool of end, described moving iron core lower end is a steel ball, and moving end, iron core lower end has a holding cavity, and steel ball is installed in this holding cavity.
Use the present invention can reach following beneficial effect: the present invention is through being provided with cross groove as the high-pressure medium passage in spacing back-up ring lower end surface; Reduced from supplying tube to the medium channel area the groove of piston upper-end surface; Also just can reduce the sectional area of piston valve opening; Regularly can under higher medium pressure environment, open pilot valve in coil power one, improve the valve ability of opening; At medium pressure one regularly, can reduce coil power, realize energy-saving effect.
Description of drawings:
Fig. 1 is a section of structure of the present invention.
Fig. 2 is the limiting block coil structures figure among Fig. 1.
Embodiment
Be described in detail below in conjunction with the accompanying drawing specific embodiments of the invention.
Like Fig. 1, shown in Figure 2; The present invention includes main valve and pilot valve, main valve comprises the valve seat 15 and piston 12 with inner chamber, and piston 12 is placed in the inner chamber of valve seat 15 and can does axial motion; Valve seat 15 is provided with input hole 14, delivery outlet 16 and the pilot valve mounting hole that all is communicated with inner chamber; The pilot valve mounting hole site is in the upper end of valve base cavity, its center line and piston motion direction in the same way, the aperture of delivery outlet 16 be positioned at valve base cavity the bottom surface and with piston end surface over against; Piston 12 comprises upper end portion and underpart, and the underpart diameter is less than the upper end portion, and the underpart is covered in the aperture of delivery outlet 16, and the upper end portion is provided with a groove 11, the piston valve opening 13 that the bottom portion of groove setting is communicated with valve seat delivery outlet 16; Described pilot valve comprises pilot sleeve 2, static iron core 1, moving iron core 4, spring 5 and coil 3, and pilot sleeve 2 is installed on the pilot valve mounting hole, and coil 3 is set in pilot sleeve 2 outer surfaces; Pilot sleeve 2 lower end oral areas are provided with spacing back-up ring 8, and spacing back-up ring 8 centers are through hole, and static iron core 1 is fixedly installed in pilot sleeve 2 inner chambers upper end; Moving iron core 4 is located in pilot sleeve 2 inner chamber lower ends, and the diameter of moving iron core 4 lower ends is less than the diameter of moving iron core 4 main bodys, and moving end, iron core 4 lower end has a holding cavity; Be installed with steel ball spool 10 in this holding cavity; The central through bore of spacing back-up ring 8 is passed in moving iron core lower end, and spool 10 sealing that matches with piston valve opening 13 is moved iron core 4 and is provided with axial step through hole 7; Moving iron core lower end is provided with the transverse holes 6 that connects with ladder hole 7; Make high-pressure medium can be input to the pilot sleeve inner chamber between moving iron core and the static iron core, ladder hole 7 epimere diameters are greater than hypomere, and spring 5 is arranged at the ladder hole epimere and connects with static iron core 1; Spacing back-up ring 8 lower end surfaces are provided with cross groove 9, and piston upper-end surface and spacing individual pen lower end surface can form the medium channel of the groove from the piston outer side surface to the piston upper-end surface when fitting, and high-pressure medium gets into said groove through cross groove.
As another kind of mode of execution; The upper-end surface of piston 12 also can be provided with cross groove; Be a kind of equivalent manners, should be regarded as the protection domain of this patent, piston upper-end surface and spacing individual pen lower end surface can form the medium channel of the groove from the piston outer side surface to the piston upper-end surface when fitting.
When solenoid valve used, input hole connected supplying tube input high-pressure medium, and delivery outlet connects output tube; At the closed electromagnetic valve state, the piston lower end cap seal is in the delivery outlet aperture of valve seat, and the cartridge cover of moving iron core underpart is encapsulated in piston valve opening aperture; High-pressure medium gets into said groove through the gap between piston and the valve seat, and the pressure balance that the piston two ends are received is in the time of need opening solenoid valve; Move the spool that makes the underpart on the moving iron core of coil drive and throw off the piston valve port, the high-pressure medium in the groove enters output tube through the piston valve opening of piston, at piston valve opening cross-section area during greater than the interval area between piston and the valve seat; Pressure in the groove can reduce, and moves disengagement on the piston, in the time of need closing solenoid valve; Moving iron core moves down; The cartridge cover of moving iron core underpart is encapsulated in the piston valve port and piston is produced downforce, and high-pressure medium gets into the groove on the said piston through gap between piston and the valve seat and described cross groove, accelerates piston and moves down speed.
Claims (2)
1. solenoid valve; Comprise main valve and pilot valve; Main valve comprises valve seat (15) with inner chamber, be placed in this valve base cavity and can make the piston (12) of axial motion, and valve seat (15) is provided with input hole (14), delivery outlet (16) and the pilot valve mounting hole that all is communicated with inner chamber, and the pilot valve mounting hole site is in the upper end of valve base cavity; Its center line and piston motion direction in the same way, delivery outlet (16) aperture be positioned at valve base cavity the bottom surface and with piston (12) lower end surface over against; Piston (12) comprises upper end portion and underpart; The underpart diameter is less than the upper end portion; The underpart is covered in delivery outlet (16) aperture, and the upper end portion is provided with a groove (11), and groove (11) bottom is provided with the piston valve opening (13) that is communicated with valve seat delivery outlet (16); Described pilot valve comprises pilot sleeve (2), static iron core (1), moving iron core (4), spring (5) and coil (3); Pilot sleeve (2) is installed on the pilot valve mounting hole; Coil (3) is set in pilot sleeve (2) outer surface, and pilot sleeve (2) lower end oral area is provided with spacing back-up ring (8), and spacing back-up ring (8) center is a through hole; Static iron core (1) is fixedly installed in pilot sleeve (2) inner chamber upper end; Moving iron core (4) is located in pilot sleeve (2) inner chamber lower end, and the diameter of moving iron core (4) lower end is less than the diameter of moving iron core (4) main body, and moving iron core (4) end, lower end is provided with spool (10); The central through bore of spacing back-up ring (8) is passed in moving iron core (4) lower end; Spool (10) sealing that matches with said piston valve opening (13), moving iron core (4) is provided with axial step through hole (7), and moving iron core (4) lower end is provided with the transverse holes (6) that connects with said ladder hole (7); Ladder hole (7) epimere diameter is greater than hypomere, and described spring (5) is arranged at the epimere of ladder hole (7) and connects with static iron core (1); It is characterized in that: described spacing back-up ring (8) lower end surface is provided with cross groove (9), when described piston upper-end surface and the applying of spacing individual pen lower end surface, can form the medium channel of the groove from the piston outer side surface to the piston upper-end surface.
2. a kind of solenoid valve according to claim 1 is characterized in that: the spool (10) of described moving iron core (4) end, lower end is a steel ball, and moving iron core (4) end, lower end has a holding cavity, and steel ball is installed in this holding cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110263645.0A CN102330834B (en) | 2011-09-07 | 2011-09-07 | Electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110263645.0A CN102330834B (en) | 2011-09-07 | 2011-09-07 | Electromagnetic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102330834A true CN102330834A (en) | 2012-01-25 |
| CN102330834B CN102330834B (en) | 2014-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110263645.0A Active CN102330834B (en) | 2011-09-07 | 2011-09-07 | Electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102330834B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359600A (en) * | 2011-09-30 | 2012-02-22 | 河南航天压力元件有限公司 | Pilot electromagnetic valve |
| CN103062477A (en) * | 2012-12-06 | 2013-04-24 | 西安航空动力控制科技有限公司 | High-pressure and dual-redundancy switch solenoid valve |
| CN103322273A (en) * | 2012-03-21 | 2013-09-25 | 浙江三花股份有限公司 | Bidirectional electromagnetic valve |
| CN103322205A (en) * | 2012-03-21 | 2013-09-25 | 浙江三花股份有限公司 | Bidirectional electromagnetic valve |
| CN103438262A (en) * | 2013-09-02 | 2013-12-11 | 杭州神林电子有限公司 | Changeover valve |
| CN104265973A (en) * | 2014-08-10 | 2015-01-07 | 安徽省宁国新鼎汽车零部件有限公司 | Directly-operated type electromagnetic switch valve |
| CN105673867A (en) * | 2016-04-13 | 2016-06-15 | 湖南凯恩利液压机械制造有限公司 | Electromagnetic valve for water and mechanical device |
| CN106671952A (en) * | 2016-12-23 | 2017-05-17 | 北汽福田汽车股份有限公司 | Brake and vehicle |
| CN106687729A (en) * | 2014-09-19 | 2017-05-17 | 丹佛斯有限公司 | Solenoid valve |
| CN109196260A (en) * | 2016-05-19 | 2019-01-11 | Smc株式会社 | Solenoid valve |
| CN110566712A (en) * | 2019-09-29 | 2019-12-13 | 鞍山电磁阀有限责任公司 | Self-holding type electromagnetic valve |
| WO2021077880A1 (en) * | 2019-10-22 | 2021-04-29 | 浙江三花制冷集团有限公司 | Electromagnetic valve |
| CN113653828A (en) * | 2021-08-30 | 2021-11-16 | 深圳市速牌科技有限公司 | Solenoid valve and method of assembling the same |
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| JPH06213358A (en) * | 1993-01-21 | 1994-08-02 | Aisin Seiki Co Ltd | Solenoid valve |
| DE19646835A1 (en) * | 1996-11-13 | 1998-05-14 | Teves Gmbh Alfred | Electromagnetic valve arrangement |
| CN101576173A (en) * | 2008-05-07 | 2009-11-11 | 浙江三花股份有限公司 | Electromagnetic valve |
| CN202182240U (en) * | 2011-09-07 | 2012-04-04 | 浙江中宝自控元件有限公司 | Electromagnetic valve |
-
2011
- 2011-09-07 CN CN201110263645.0A patent/CN102330834B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06213358A (en) * | 1993-01-21 | 1994-08-02 | Aisin Seiki Co Ltd | Solenoid valve |
| DE19646835A1 (en) * | 1996-11-13 | 1998-05-14 | Teves Gmbh Alfred | Electromagnetic valve arrangement |
| CN101576173A (en) * | 2008-05-07 | 2009-11-11 | 浙江三花股份有限公司 | Electromagnetic valve |
| CN202182240U (en) * | 2011-09-07 | 2012-04-04 | 浙江中宝自控元件有限公司 | Electromagnetic valve |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359600A (en) * | 2011-09-30 | 2012-02-22 | 河南航天压力元件有限公司 | Pilot electromagnetic valve |
| CN103322273A (en) * | 2012-03-21 | 2013-09-25 | 浙江三花股份有限公司 | Bidirectional electromagnetic valve |
| CN103322205A (en) * | 2012-03-21 | 2013-09-25 | 浙江三花股份有限公司 | Bidirectional electromagnetic valve |
| CN103322205B (en) * | 2012-03-21 | 2017-11-10 | 浙江三花制冷集团有限公司 | A kind of bidirectional electromagnetic valve |
| CN103062477A (en) * | 2012-12-06 | 2013-04-24 | 西安航空动力控制科技有限公司 | High-pressure and dual-redundancy switch solenoid valve |
| CN103438262A (en) * | 2013-09-02 | 2013-12-11 | 杭州神林电子有限公司 | Changeover valve |
| CN103438262B (en) * | 2013-09-02 | 2016-04-13 | 杭州神林电子有限公司 | A kind of switching valve |
| CN104265973A (en) * | 2014-08-10 | 2015-01-07 | 安徽省宁国新鼎汽车零部件有限公司 | Directly-operated type electromagnetic switch valve |
| CN104265973B (en) * | 2014-08-10 | 2016-09-14 | 安徽省宁国新鼎汽车零部件有限公司 | A kind of directly operated type electromagnetic switch valve |
| CN106687729A (en) * | 2014-09-19 | 2017-05-17 | 丹佛斯有限公司 | Solenoid valve |
| US10082219B2 (en) | 2014-09-19 | 2018-09-25 | Danfoss A/S | Solenoid valve |
| CN106687729B (en) * | 2014-09-19 | 2019-01-29 | 丹佛斯有限公司 | Solenoid valve |
| CN105673867A (en) * | 2016-04-13 | 2016-06-15 | 湖南凯恩利液压机械制造有限公司 | Electromagnetic valve for water and mechanical device |
| CN109196260A (en) * | 2016-05-19 | 2019-01-11 | Smc株式会社 | Solenoid valve |
| CN109196260B (en) * | 2016-05-19 | 2020-04-03 | Smc株式会社 | Electromagnetic valve |
| TWI729123B (en) * | 2016-05-19 | 2021-06-01 | 日商Ｓｍｃ股份有限公司 | Electromagnetic valve |
| CN106671952A (en) * | 2016-12-23 | 2017-05-17 | 北汽福田汽车股份有限公司 | Brake and vehicle |
| CN110566712A (en) * | 2019-09-29 | 2019-12-13 | 鞍山电磁阀有限责任公司 | Self-holding type electromagnetic valve |
| WO2021077880A1 (en) * | 2019-10-22 | 2021-04-29 | 浙江三花制冷集团有限公司 | Electromagnetic valve |
| CN113653828A (en) * | 2021-08-30 | 2021-11-16 | 深圳市速牌科技有限公司 | Solenoid valve and method of assembling the same |
| CN113653828B (en) * | 2021-08-30 | 2024-05-03 | 深圳市速牌科技有限公司 | Solenoid valve and method of assembling the same |
Also Published As
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|---|---|
| CN102330834B (en) | 2014-08-20 |
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