CN202176805U - Energy-saving valve needle type solenoid valve - Google Patents

Energy-saving valve needle type solenoid valve Download PDF

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Publication number
CN202176805U
CN202176805U CN201120334421XU CN201120334421U CN202176805U CN 202176805 U CN202176805 U CN 202176805U CN 201120334421X U CN201120334421X U CN 201120334421XU CN 201120334421 U CN201120334421 U CN 201120334421U CN 202176805 U CN202176805 U CN 202176805U
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CN
China
Prior art keywords
valve
piston
needle
iron core
hole
Prior art date
Application number
CN201120334421XU
Other languages
Chinese (zh)
Inventor
石晓锋
Original Assignee
浙江中宝自控元件有限公司
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Filing date
Publication date
Application filed by 浙江中宝自控元件有限公司 filed Critical 浙江中宝自控元件有限公司
Priority to CN201120334421XU priority Critical patent/CN202176805U/en
Application granted granted Critical
Publication of CN202176805U publication Critical patent/CN202176805U/en

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Abstract

An energy-saving valve needle type solenoid valve belongs to the valve field, including a main valve and a pilot valve. The main valve includes a valve seat and a piston accommodated in the valve seat. The lower end portion of the piston covers a valve seat delivery outlet; the upper end portion is provided with a groove; the bottom of the groove is provided with a piston valve hole communicated with the outlet; the pilot valve includes a needle valve, a spring, a coil and a guiding sleeve provided with a static iron core and a moving iron core; the guiding sleeve is arranged in a stair through hole; the coil is sleeved out of the guiding sleeve; the lower end surface of the guiding sleeve is provided with a spacing retainer ring; the moving iron core is provided with an axial stair through hole; the valve needle is arranged in the stair through hole; the valve needle passes through a spacing back-up ring to seal the piston valve hole; the lower end of the spring presses the top surface of the valve needle head, and the upper end of the spring is contacted to the static iron core. The energy-saving valve needle type solenoid valve is characterized in that the lower end surface of the spacing retainer ring is provided with a transverse groove, an interval is provided between the inner end surface of the stair through hole and the lower end surface of the needle head, the medium channel area between the input hole and the groove is decreased, the motion inertia of the moving iron core is formed in advance, the valve opening capability is raised, and an energy saving effect is realized.

Description

Energy-saving needle valve type solenoid valve
Technical field
The utility model belongs to valve field, and is especially relevant with a kind of energy-saving needle valve type solenoid valve.
Background technique
Application number is that 200810096924.0 application for a patent for invention file discloses a kind of solenoid valve; This 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 primary valve 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 the disengagement primary valve on the piston; 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, and 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 this type solenoid valve still is relatively large.And it is expensive that the processing of equalizing orifice also can increase processing.
The model utility content
The purpose of the utility model just provides a kind of power consumption and the lower energy-saving needle valve type solenoid valve of cost.
For this reason; The utility model adopts following technological scheme: energy-saving needle valve type 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; Spacing back-up ring center is a through hole, and static iron core is fixedly installed in pilot sleeve inner chamber upper end, and moving iron core is located in pilot sleeve inner chamber lower end; Moving iron core is provided with the axial step through hole, and described ladder hole epimere diameter is greater than hypomere; It is characterized in that: described pilot valve also comprises needle, and needle is made up of needle body and syringe needle, and the needle body diameter is less than the syringe needle diameter; Syringe needle is positioned at described ladder hole epimere, and needle body is positioned at the ladder hole hypomere, and needle body passes the central through bore of described spacing back-up ring; The described piston valve opening of needle body end seal; Described spring is arranged at the ladder hole epimere, and press and the syringe needle end face spring lower end, and the spring upper end connects with static iron core; Have a segment distance between syringe needle lower end surface and the ladder hole interior edge face when moving iron core and spacing back-up ring are abutted against, this segment distance is decided to be moving iron core motional inertia and forms distance; 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 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 needle is at spring force effect lower seal piston valve opening; High-pressure medium gets into said groove through the gap between piston and the valve seat; The pressure balance that the piston two ends are received in the time of need opening solenoid valve, moves on the moving iron core of coil drive; Before the interior edge face of moving iron core ladder hole touched needle syringe needle lower end surface, needle is the packed-piston valve opening still; Moving iron core forms the motion apart from this segment distance through motional inertia, has formed motional inertia, when the interior edge face of moving iron core ladder hole touches needle syringe needle lower end surface, syringe needle is had impact force; The drive needle rises, because motional inertia forms impact force, also can drive needle so can reduce coil power; Needle body was thrown off the piston valve opening after needle rose; High-pressure medium in the groove enters output tube through the piston valve opening of piston, and during greater than the interval area between piston and the valve seat, the pressure in the groove can reduce at piston valve opening 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 cartridge cover of the underpart of moving iron core is encapsulated in the piston valve port and piston is produced downforce; 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.
Use the utility model can reach following beneficial effect: the utility model 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; Form distance through moving iron core motional inertia is set, reduce coil power, reached energy-saving effect.
Description of drawings
Fig. 1 is the section of structure of the utility model.
Fig. 2 is the limiting block coil structures figure among Fig. 1.
Embodiment
Be described in detail below in conjunction with the embodiment of accompanying drawing the utility model.
Like Fig. 1, shown in Figure 2; The utility model comprises main valve and pilot valve, and 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, and groove 11 bottoms are 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, coil 3 and needle 10, 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 moving iron core 4 is provided with axial step through hole 7, and ladder hole 7 epimere diameters are greater than hypomere; Needle 10 is made up of needle body and syringe needle, and the needle body diameter is less than syringe needle, and syringe needle is positioned at the epimere of ladder hole 7; Needle body is positioned at ladder hole 7 hypomeres, and needle body passes the central through bore of spacing back-up ring 8, needle body end seal piston valve opening 13; Described spring 5 is arranged at ladder hole 7 epimeres; Press and the syringe needle end face spring 5 lower ends, and spring 5 upper ends and static iron core 1 connect, and has a segment distance between the interior edge face 6 of syringe needle lower end surface and ladder hole 7 when moving iron core 4 and spacing back-up ring 8 are abutted against; 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 11 from the piston outer side surface to the piston upper-end surface when fitting, and high-pressure medium gets into said groove 11 through cross groove 9.
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 needle is at spring force effect lower seal piston valve opening; High-pressure medium gets into said groove through the gap between piston and the valve seat; The pressure balance that the piston two ends are received in the time of need opening solenoid valve, moves on the moving iron core of coil drive; Before the interior edge face of moving iron core ladder hole touched needle syringe needle lower end surface, needle is the packed-piston valve opening still; Moving iron core forms the motion apart from this segment distance through motional inertia, has formed motional inertia, when the interior edge face of moving iron core ladder hole touches needle syringe needle lower end surface, syringe needle is had impact force; The drive needle rises, because motional inertia forms impact force, also can drive needle so can reduce coil power; Needle body was thrown off the piston valve opening after needle rose; High-pressure medium in the groove enters output tube through the piston valve opening of piston, and during greater than the interval area between piston and the valve seat, the pressure in the groove can reduce at piston valve opening 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 cartridge cover of the underpart of moving iron core is encapsulated in the piston valve port and piston is produced downforce; 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 (1)

1. energy-saving needle valve type 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; 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, 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 moving iron core (4) is provided with axial step through hole (7), and ladder hole (7) epimere diameter is greater than hypomere; It is characterized in that: described pilot valve also comprises needle (10), and needle (10) is made up of needle body and syringe needle, and the needle body diameter is less than the syringe needle diameter; Syringe needle is positioned at described ladder hole (7) epimere; Needle body is positioned at ladder hole (7) hypomere, and needle body passes the central through bore of described spacing back-up ring (8), the described piston valve opening of needle body end seal (13); Described spring (5) is arranged at ladder hole (7) epimere; Press and the syringe needle end face spring (5) lower end, and spring (5) upper end connects with static iron core (1), and moving iron core (4) and spacing back-up ring (8) have a segment distance between syringe needle lower end surface and the ladder hole interior edge face (6) when being abutted against; Described spacing back-up ring (8) lower end surface is provided with cross groove (9), when described piston (12) upper-end surface and the applying of spacing individual pen (8) lower end surface, can form the medium channel of the groove (11) from the piston outer side surface to the piston upper-end surface.
CN201120334421XU 2011-09-07 2011-09-07 Energy-saving valve needle type solenoid valve CN202176805U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120334421XU CN202176805U (en) 2011-09-07 2011-09-07 Energy-saving valve needle type solenoid valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120334421XU CN202176805U (en) 2011-09-07 2011-09-07 Energy-saving valve needle type solenoid valve

Publications (1)

Publication Number Publication Date
CN202176805U true CN202176805U (en) 2012-03-28

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705520A (en) * 2012-06-21 2012-10-03 太仓凯鑫电子有限公司 Solenoid valve
CN102734538A (en) * 2012-06-29 2012-10-17 太仓奥科机械设备有限公司 Electromagnetic valve
CN103512288A (en) * 2012-06-20 2014-01-15 浙江三花股份有限公司 Electronic expansion valve
CN105570517A (en) * 2014-11-04 2016-05-11 罗伯特·博世有限公司 Valve device
CN106641383A (en) * 2015-11-04 2017-05-10 浙江盾安人工环境股份有限公司 Solenoid valve
CN107524817A (en) * 2017-10-24 2017-12-29 宁波文泽机电技术开发有限公司 A kind of normally closed ratio one-way flow valves
CN107631040A (en) * 2017-11-08 2018-01-26 宁波文泽机电技术开发有限公司 A kind of proportional flow stop valve
CN107701763A (en) * 2017-11-10 2018-02-16 宁波文泽机电技术开发有限公司 The ratio one-way flow valves of performance improvement
CN107725840A (en) * 2017-11-08 2018-02-23 宁波文泽机电技术开发有限公司 The proportional flow stop valve of double-direction control
CN107725841A (en) * 2017-11-08 2018-02-23 宁波文泽机电技术开发有限公司 The ratio one-way flow valves of double-direction control
CN109506033A (en) * 2017-09-14 2019-03-22 浙江三花制冷集团有限公司 A kind of guide electromagnetic valve

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9810461B2 (en) 2012-06-20 2017-11-07 Zhejiang Sanhua Intelligent Controls Co., Ltd. Electronic expansion valve
CN103512288A (en) * 2012-06-20 2014-01-15 浙江三花股份有限公司 Electronic expansion valve
CN103512288B (en) * 2012-06-20 2016-07-06 浙江三花股份有限公司 A kind of electric expansion valve
CN102705520A (en) * 2012-06-21 2012-10-03 太仓凯鑫电子有限公司 Solenoid valve
CN102734538A (en) * 2012-06-29 2012-10-17 太仓奥科机械设备有限公司 Electromagnetic valve
CN105570517A (en) * 2014-11-04 2016-05-11 罗伯特·博世有限公司 Valve device
CN106641383A (en) * 2015-11-04 2017-05-10 浙江盾安人工环境股份有限公司 Solenoid valve
CN106641383B (en) * 2015-11-04 2020-01-21 浙江盾安人工环境股份有限公司 Electromagnetic valve
CN109506033A (en) * 2017-09-14 2019-03-22 浙江三花制冷集团有限公司 A kind of guide electromagnetic valve
CN107524817A (en) * 2017-10-24 2017-12-29 宁波文泽机电技术开发有限公司 A kind of normally closed ratio one-way flow valves
CN107631040A (en) * 2017-11-08 2018-01-26 宁波文泽机电技术开发有限公司 A kind of proportional flow stop valve
CN107725840A (en) * 2017-11-08 2018-02-23 宁波文泽机电技术开发有限公司 The proportional flow stop valve of double-direction control
CN107725841A (en) * 2017-11-08 2018-02-23 宁波文泽机电技术开发有限公司 The ratio one-way flow valves of double-direction control
CN107631040B (en) * 2017-11-08 2019-03-15 立信阀门集团有限公司 A kind of proportional flow shut-off valve
CN107701763B (en) * 2017-11-10 2019-03-19 北京德华力通液压件制造有限公司 The ratio one-way flow valves of performance improvement
CN107701763A (en) * 2017-11-10 2018-02-16 宁波文泽机电技术开发有限公司 The ratio one-way flow valves of performance improvement

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GR01 Patent grant
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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120328

Termination date: 20150907

EXPY Termination of patent right or utility model