WO2012048658A1 - 一种电动阀 - Google Patents

一种电动阀 Download PDF

Info

Publication number
WO2012048658A1
WO2012048658A1 PCT/CN2011/080796 CN2011080796W WO2012048658A1 WO 2012048658 A1 WO2012048658 A1 WO 2012048658A1 CN 2011080796 W CN2011080796 W CN 2011080796W WO 2012048658 A1 WO2012048658 A1 WO 2012048658A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
nut
assembly
seat
electric valve
Prior art date
Application number
PCT/CN2011/080796
Other languages
English (en)
French (fr)
Inventor
魏先让
Original Assignee
浙江三花股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=45937908&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2012048658(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from CN201010515238XA external-priority patent/CN102454819B/zh
Priority claimed from CN2010105152341A external-priority patent/CN102454818A/zh
Priority claimed from CN201110184918.2A external-priority patent/CN102853086B/zh
Application filed by 浙江三花股份有限公司 filed Critical 浙江三花股份有限公司
Priority to JP2013533084A priority Critical patent/JP5987834B2/ja
Priority to KR1020137012518A priority patent/KR101458424B1/ko
Priority to CN201180049850.5A priority patent/CN103261765B/zh
Publication of WO2012048658A1 publication Critical patent/WO2012048658A1/zh

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor

Definitions

  • the present invention relates to the field of control valves, and more particularly to an electric valve for regulating fluid flow.
  • the electric valve usually includes a valve seat assembly, a nut assembly, a needle screw assembly, and a rotor assembly.
  • the valve seat assembly generally includes a valve seat, a valve seat and a connecting tube, and the valve seat has a valve port, a valve seat, a valve seat and a connection.
  • the tube is typically welded integrally to form a valve seat assembly, and the valve needle of the needle screw assembly is mounted within the nut of the nut assembly.
  • valve shaft and the valve port are different from each other, which causes the valve to be different. Poor mouth seal or eccentric wear on the valve port, thus making The reliability of the action of the electric valve is low, and the service life of the electric valve is also shortened.
  • the valve stem assembly includes a lead screw and a valve needle driven by the lead screw, and further comprising a nut assembly, the nut assembly including a nut and a connecting piece, the nut being hollow
  • the annular structure includes a positioning guide portion adjacent to the valve seat assembly, a nut connecting portion adjacent to the rotor assembly, and a supporting portion for fixing the connecting piece, wherein the nut connecting portion has an inner hole corresponding thereto a threaded portion that is threadedly engaged with the threaded rod; the corresponding inner or outer edge of the positioning guide has a guiding section, and the nut realizes a positioning fit with the valve core seat through a guiding section thereof.
  • the thread inner diameter d2 of the thread segment is smaller than the inner hole diameter d3 corresponding to the positioning guide;
  • the inner hole corresponding to the nut connecting portion further has a lead screw guiding section matched with the valve stem;
  • the diameter dl of the lead screw guiding section is smaller than the thread inner diameter d2 of the threaded section
  • the outer diameter D2 of the branch portion 7 is larger than the outer diameter D1 of the nut connecting portion;
  • the electric valve according to the above configuration further comprises a transition portion between the support portion and the nut connecting portion, the outer diameter of the transition portion being larger than the outer diameter D1 of the nut connecting portion. And smaller than the outer diameter D2 corresponding to the branch.
  • the outer edge of the nut connecting portion is further sleeved with a stopping mechanism of the rotor assembly
  • the electric valve of the above structure is made of a non-metallic material
  • the connecting piece is made of a metal material
  • the connecting piece is fixedly embedded in the supporting portion by an injection molding method
  • the sheet has at least one opening and is welded to the valve seat.
  • the nut is further provided with a balance hole connecting the inner hole of the nut and the valve cavity;
  • the support portion is divided between the positioning guide portion and the nut connecting portion by a step of the inner hole or the outer edge.
  • the electric valve provided by the invention has a guiding section matched with the valve core seat at the lower end of the nut through the improvement of the nut structure, and a guiding section matched with the screw rod is arranged at the upper end of the nut, and the nut is fixed to the valve through the connecting piece On the seat.
  • a nut structure facilitates the one-time forming of a plastic mold, and facilitates the assembly of the valve seat assembly with the valve needle screw assembly and the nut, and ensures the tolerance and accuracy of the relative position, so that the nut and the needle screw assembly and the valve
  • the coaxiality between the valve ports of the core seat is easily ensured, and the problem of poor valve port sealing or eccentric wear of the valve port is avoided.
  • the rotor assembly is improved. The frictional force when the rotor rotates is significantly reduced, and the operational reliability of the electric valve is also improved.
  • Figure 1 is a schematic view showing the structure of an electric valve according to an embodiment of the present invention
  • Figure 2 is an external view of the nut assembly of Figure 1 and a cross-sectional side view of the shaft;
  • Figure 3 Outline drawing and axial side sectional view of the spool seat of Figure 1;
  • Figure 4 is a schematic view showing the structure of another electric valve according to another embodiment of the present invention.
  • Figure 5 Outline drawing and axial side sectional view of the nut assembly of Figure 4.
  • Figure 6 Outline drawing and axial side sectional view of the spool seat in Figure 4.
  • III-first guiding segment 112-second guiding segment
  • FIG. 1 is a schematic structural view of a specific embodiment of an electric valve according to the present invention
  • FIG. 2 is an outline view of the nut assembly and a cross-sectional view of the shaft
  • FIG. 3 is an external view of the spool seat and a cross-sectional view of the shaft side. Please refer to Figure 1, Figure 2 and Figure 3.
  • the electric valve provided by the present invention includes a valve seat assembly, a nut, a valve stem screw assembly, and a rotor assembly.
  • the valve seat assembly includes a spool seat 11 and a valve seat 12.
  • a valve port 113 is also formed on the spool seat 11, and the valve seat 12 has a cylindrical structure, and a valve chamber 121 is formed inside thereof.
  • the valve seat assembly further includes a first connecting pipe 13 and a second connecting pipe 14.
  • the spool seat 11, the valve seat 12, the first connecting pipe 13, and the second connecting pipe 14 are integrally connected to form a valve seat assembly.
  • the first connecting pipe 13 and the second connecting pipe 14 may be integrally connected by welding, or may be integrally formed.
  • the nut 32 and the connecting piece 31 constitute a nut assembly.
  • the nut 32 is a substantially annular structure composed of a plurality of variable diameter cylinders (it is noted that the structure may have many extended forms), including a nut connecting portion 60, a support portion 70, a transition portion 90, and the vicinity of the rotor assembly.
  • a positioning guide 80 or the like close to the valve seat assembly.
  • the inner hole corresponding to the nut connecting portion 60 has a threaded portion 61 threadedly engaged with the screw rod 23; and the inner hole corresponding to the nut connecting portion 60 further has a screw guiding mechanism matched with the valve stem 21 In section 322, the bore dl of the lead screw guide section 322 is smaller than the thread inner diameter d2 of the threaded section 61.
  • the thread inner diameter d2 of the threaded section 61 of the nut connecting portion 60 is smaller than the inner bore diameter d3 of the positioning guide 80.
  • a spring rail 33 and a snap ring 34 are also provided on the outer edge of the nut connecting portion 60.
  • the spring guide 33 and the stop slip ring 34 serve as a stopper mechanism for the rotor assembly, and the stopper mechanism cooperates with the stopper lever 42 of the rotor assembly described later to control the stroke of the valve needle.
  • a transition portion 90 is further provided between the support portion 70 and the nut connecting portion 60, and the outer diameter of the transition portion 90 is interposed between the nut connecting portion 60 and the outer diameter of the support portion 70.
  • a card slot for mounting the spring rail 33 is provided on the outer circumference of the transition portion 90, so that the spring rail 33 can be mounted more firmly and reliably.
  • the transition portion 90 By providing the transition portion 90, the overall structure of the nut can be made compact, and the amount of material can be reduced, and the cost can be saved.
  • those skilled in the art may not provide the transition portion 90 separately, but the outer diameter of the transition portion 90 is the same as that of the branch portion 70, and the combination of the two is used as the support portion, based on the technical suggestion provided by the present invention.
  • the object of the invention can also be achieved.
  • the support portion 70 is divided between the positioning guide portion 80 and the nut connecting portion 60 by a step of the inner hole or the outer edge.
  • the support portion 70 is provided with a connecting piece 31.
  • the connecting piece 31 is made of a metal material, has at least one opening and is welded and fixed to the valve seat.
  • the nut 32 is made of a non-metallic material such as plastic.
  • the connecting piece 31 can be integrally molded with the nut 32 as an insert by a mold forming method to form an assembly.
  • the preferred nut adopts the method of injection molding of the mold. Since the inner hole dl ⁇ d2 ⁇ d3 of the nut and the middle part of the nut are stepped stepwise, the through hole in the middle of the nut can be formed by the integral core during injection molding.
  • it can be processed by one-time clamping, so that the coaxiality is easy to ensure, so that the coaxiality between the inner holes dl, d2 and d3 of the nut can be ensured.
  • the thickness of the cylindrical material of the connecting portion 60 is increased, so that the connecting piece 31 is embedded in the nut 32 to ensure the connection strength.
  • the nut 32 is fixed to the valve seat 12 via a connecting piece 31.
  • the inner hole corresponding to the positioning guide 80 has a guiding portion 321 , and the nut 32 passes through the guiding portion 321 to achieve a positioning fit with the valve core seat 11 .
  • a communicating nut is radially opened.
  • the hole and the valve chamber 121 balance the hole 71.
  • the needle screw assembly includes a screw rod 23 and a valve needle 21 driven by the screw rod 23.
  • the needle needle screw assembly further includes a valve needle sleeve 22, a dam 24, a spring 25, and a valve needle 21
  • the valve needle sleeve 22 is integrally connected, and the valve needle 21 and the valve needle sleeve 22 can be integrally connected by welding, interference and pressure fitting, etc., the head of the screw rod 23 is provided with a dam 24, and the dam 24 can be welded, The interference pressure matching and the like are combined with the screw rod 23, and the screw rod 23 is fitted in the inner hole of the valve needle 21.
  • the inner hole of the valve needle 21 is further provided with a spring 25, and the end of the screw rod 23 can abut against the spring 25.
  • the screw 23 is elastically connected to the valve needle 21.
  • the outer edge portion of the valve needle 21 has a guide portion 211.
  • the rotor assembly includes a rotor 41, a stopper rod 42 and a joint connecting the two, and the rotor assembly is fixed to the upper end of the screw shaft 23.
  • the electric valve further includes a casing 5, and the casing 5 is fitted on the valve seat 12 for sealing the valve body.
  • a circular stepped surface is disposed on an outer edge portion of the valve core seat 11, and a first guiding portion 111 is disposed on the stepped surface, and the first guiding portion 111 of the valve core seat 11 is engaged with the guiding portion 321 of the nut 32 to make the valve
  • the core seat 11 is positioned and mated with the nut 32.
  • a spool accommodating chamber 114 is further provided on the spool seat 11, and a second guide portion 112 is provided at an inner edge portion of the accommodating chamber 114.
  • An opening 115 connecting the receiving chamber 114 and the valve chamber 121 is also disposed on the spool seat 11.
  • the second guide section 112 of the spool seat 11 cooperates with the guide section 211 of the valve needle.
  • the valve needle 21 is slidably disposed in the accommodating chamber 114 of the spool seat 11 in the axial direction.
  • the "inner edge portion” or “outer edge portion” as used in the present invention refers to the axial inner edge portion of the hole or the axial outer edge portion of the shaft, such as In this embodiment, it is an axial inner circular surface or an axial outer circular surface of the hole of the nut.
  • the electric valve provided by the present invention has a smaller bore diameter d1 than the threaded inner diameter d2 of the threaded section 61.
  • the thread inner diameter d2 of the threaded section 61 of the nut connecting portion 60 is smaller than the inner bore diameter d3 corresponding to the positioning guide 80. Therefore, the valve needle screw assembly and the nut can be screwed together, and at the same time, the guiding end and the valve needle guiding portion disposed at the lower end of the nut are axially slid, and the first guiding section and the second guiding section on the valve core seat are installed. In place, the nut assembly is then secured to the seat by welding the tab to the seat. The assembly process is reasonable.
  • first guide portion and the second guide portion of the spool seat and the valve port on the spool seat can be the same One-time forming or mold forming to ensure the tolerance and accuracy of the relative position, so that the coaxiality between the nut and the needle screw assembly and the valve port of the valve seat can be easily ensured, avoiding the valve opening
  • the sealing is not strict or the valve port is eccentrically worn.
  • the coaxiality between the valve needle and the valve port is improved, the friction of the rotor of the rotor assembly is significantly reduced, and the operational reliability of the electric valve is also improve.
  • FIG. 4 is a schematic structural view of another embodiment of an electric valve according to the present invention
  • FIG. 5 is an outline view of the nut assembly and a cross-sectional view of the shaft
  • FIG. 6 is an external view of the spool seat and a cross-sectional view of the shaft side. Please refer to Figure 4, Figure 5 and Figure 6.
  • This embodiment is different from the foregoing embodiment in that a guide portion 321 is provided at the outer edge portion of the lower portion of the nut 32; the outer edge portion of the valve needle 21 has a guide portion 211.
  • a circular stepped surface is disposed on the inner edge portion of the spool seat 11, and a stepped surface having a larger aperture is provided with a first guiding section 111, a first guiding section 111 of the spool seat 11 and a guiding section 321 of the nut 32.
  • the spool seat 11 is fixedly connected with the nut 32;
  • the second guide section 112 is disposed on the step surface having a smaller aperture, and the inner hole forms the spool receiving cavity 114, and the second guiding section 112 of the spool seat 11
  • the valve needle 21 is slidably disposed in the accommodating chamber 114 of the spool seat 11 in the axial direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Lift Valve (AREA)

Description

一种电动阀 本申请要求下列专利申请的优先权， 其全部内容均通过引用结合在本 申请中：
1、 2010年 10月 15 日提交中国专利局、 申请号为 201010515234.1、 发明名称为"一种电动阀 "的中国专利申请；
2、 2010年 10月 15 日提交中国专利局、 申请号为 201010515238.X、 发明名称为"电动阀及其止动装置 "的中国专利申请；
3、 2011年 7月 1 日提交中国专利局、 申请号为 201110184918.2、 发 明名称为 "一种电动阀装置"的中国专利申请。 技术领域
本发明涉及控制阀技术领域， 尤其涉及一种用于调节流体流量的电动 阀。
背景技术
在空调、 冰箱、 热泵热水器及各类制冷、 制热设备中， 通常采用电动 阀调节流体的流量。
电动阀通常包括阀座组件、 螺母组件、 阀针丝杆组件， 转子组件， 阀 座组件通常包括阀芯座、 阀座及连接管， 阀座上具有阀口， 阀芯座、 阀座 及连接管通常焊接成一体构成阀座组件， 阀针丝杆组件的阀针安装在螺母 组件的螺母内。
特许文献（特开 2010-25932号公报）公开了一种电动阀， 螺母组件的 螺母固定在导向套筒内， 导向套筒固定在阀座上， 阀针又需要固定在阀座 的阀口内， 因此对阀座与螺母的同轴度要求较高， 上述电动阀需要经过多 次组装工序间接控制才能保证阀芯座与螺母的同轴度， 而且阀座与螺母的 同轴度受到螺母、 导向套筒、 阀座、 阀针等多个零件的加工精度的影响， 同轴度不易保证， 如果出现阀芯座与螺母不同轴， 容易出现阀针与阀口不 同轴现象， 进而造成阀口密封不严或阀口出现偏心磨损的问题， 从而使得 电动阀的动作的可靠性较低， 也会缩短电动阀的使用寿命。
因此， 如何研发出一种满足阀座组件、 螺母组件和阀针丝杆组件同轴 度较高的电动阀， 成为本领域技术人员亟待解决的技术难题。 发明内容
本发明的目的是提供一种电动阀， 包括阀座组件、 转子组件， 阀针丝 杆组件， 所述阀座组件包括设有阀腔的阀座和固定在所述阀座上的带阀口 的阀芯座； 所述阀针丝杆组件包括丝杆和由所述丝杆带动的阀针， 其特征 在于,还包括螺母组件,所述螺母组件包括螺母和连接片 ,所述螺母为中空的 环状结构体， 包括靠近所述阀座组件的定位导向部、 靠近所述转子组件的 螺母连接部， 及固定所述连接片的支承部， 所述螺母连接部所对应的内孔 上具有与所述丝杆螺纹配合的螺纹段； 所述定位导向部所对应的内孔或外 缘上具有导向段， 所述螺母通过其导向段实现与所述阀芯座的定位配合。
进一步，如上述结构的电动阀，所述螺紋段的螺纹内径 d2小于所述定 位导向部所对应的内孔孔径 d3；
进一步， 如上述结构的电动阀， 所述螺母连接部所对应的内孔上还具 有与所述阀杆配合的丝杆导向段；
进一步，如上述结构的电动阀，所述丝杆导向段的孔径 dl小于所述螺 紋段的螺纹内径 d2;
进一步， 如上述结构的电动阀， 所述支 7|部所对应的外缘直径 D2 大 于所述螺母连接部所对应的外缘直径 D1;
优选地， 如上述结构的电动阀还包括位于所述支^部和所述螺母连接 部之间的过渡部， 所述过渡部的外缘直径大于所述螺母连接部所对应的外 缘直径 D1 , 且小于所述支 部所对应的外缘直径 D2。
进一步， 如上述结构的电动阀， 所述螺母连接部所对应的外缘上还套 接有转子组件的止动机构；
优选地， 如上述结构的电动阀， 所述螺母为非金属材料制成， 所述连 接片为金属材料制成， 通过注塑成型方法， 使所述连接片固定嵌入所述支 承部； 所述连接片至少带有一个开口， 并与所述阀座焊接固接。 进一步， 如上述结构的电动阀， 所述螺母上还设置有连通所述螺母的 内孔与所述阀腔的平衡孔；
进一步， 如上述结构的电动阀， 所述支承部与定位导向部和螺母连接 部之间通过内孔或外缘的台阶分割。
本发明提供的电动阀， 通过对螺母结构的改进， 在螺母的下端设置有 与阀芯座配合的导向段， 在螺母的上端设置有与丝杆配合的导向段， 螺母 通过连接片固定在阀座上。 这样的螺母结构， 便于采用塑料模具一次性加 工成型， 和便于阀座组件与阀针丝杆组件和螺母的装配， 可以保证相对位 置的公差要求和精度， 使得螺母和阀针丝杆组件及阀芯座的阀口之间同轴 度极易得到保证， 避免出现阀口密封不严或阀口出现偏心磨损的问题； 同 时， 由于阀针与阀口的同轴度得到了提高， 转子组件的转子转动时的摩擦 力会明显减小， 电动阀的动作可靠性也会提高。
附图说明
图 1: 本发明所提供的一种电动阀具体实施例的结构示意图； 图 2: 图 1中螺母组件的外形图及轴侧剖视图；
图 3: 图 1中阀芯座的外形图及轴侧剖视图；
图 4: 本发明所提供的另一种电动阀具体实施例的结构示意图;
图 5: 图 4中螺母组件的外形图及轴侧剖视图；
图 6: 图 4中阀芯座的外形图及轴侧剖视图。
图中符号说明：
II-阀芯座；
III-第一导向段、 112-第二导向段；
113-阀口、 114容纳腔、 115-开口;
12-阀座、 121-阀腔；
13-第一连接管、 14-第二连接管；
21-阀针、 211-导向段；
22-阀针套、 23-丝杆；
24-挡圏、 25-弹簧； 31-连接片、 32-螺母；
321-导向段、 322-丝杆导向段；
33-弹簧导轨、 34-滑环；
41-转子、 42-止动杆；
5-外壳；
60-螺纹连接部、 61-螺纹段；
70-支 部、 71-平衡孔；
80 -定位导向部
90-过渡部
具体实施方式
为了使本领域的技术人员更好的理解本发明的技术方案， 下面结合附 图和具体实施方式对本发明作进一步的详细说明。
图 1为本发明所提供的一种电动阀具体实施例的结构示意图； 图 2为 螺母组件的外形图及轴侧剖视图； 图 3为阀芯座的外形图及轴侧剖视图。 请参看图 1、 图 2和图 3。
本发明提供的电动阀包括阀座组件、螺母、 阀针丝杆组件及转子组件。 阀座组件包括阀芯座 11和阀座 12。 阀芯座 11上还加工有阀口 113 , 阀座 12为筒状结构， 其内部形成阀腔 121。 在本实施例中， 阀座组件还进 一步包括第一连接管 13和第二连接管 14。 阀芯座 11、 阀座 12、 第一连接 管 13、 第二连接管 14连接成一体形成阀座组件。 当然， 阀芯座 11、 阀座
12、 第一连接管 13、 第二连接管 14可以通过焊接连接成一体， 也可以一 体成型。
螺母 32和连接片 31构成螺母组件。其中螺母 32是由多个变径圓柱构 成的大致环状结构（需要说明的是， 该结构可以有很多延伸的形式）， 包括 靠近转子组件的螺母连接部 60、 支承部 70、 过渡部 90和靠近阀座组件的 定位导向部 80等。
其中， 螺母连接部 60所对应的内孔上具有与丝杆 23螺纹配合的螺纹 段 61 ; 在螺母连接部 60所对应的内孔上还具有与阀杆 21配合的丝杆导向 段 322, 丝杆导向段 322的孔径 dl小于螺紋段 61的螺纹内径 d2。 螺母连 接部 60的螺纹段 61的螺纹内径 d2小于定位导向部 80所对应的内孔孔径 d3。
在螺母连接部 60 所对应的外缘上还套装有弹簧导轨 33 和止动滑环 34。 弹簧导轨 33和止动滑环 34作为转子组件的止动机构， 该止动机构与 后述的转子组件的止动杆 42配合作用， 以控制阀针的行程。
在本实施方式中，支承部 70与螺母连接部 60之间还设具有过渡部 90, 过渡部 90的外径介于螺母连接部 60和支承部 70的外径之间。作为优选的 实施方式， 在过渡部 90的外圓周上设置有安装弹簧导轨 33的卡槽， 这样 可以使弹簧导轨 33安装更加牢固、 可靠。
设置过渡部 90, 可以使螺母的整体结构紧凑， 并且能减少材料用量， 节约成本。 当然本领域技术人员基于本发明所提供的技术启示， 也可以不 单独设置过渡部 90, 而将过渡部 90的外径设置成与支 7 部 70相同， 将两 者组合的整体作为支承部， 也同样可以实现本发明的目的。
其中，支承部 70与定位导向部 80和螺母连接部 60之间通过内孔或外 缘的台阶分割。 在支承部 70设置有连接片 31 , 优选的， 连接片 31采用金 属材料制成， 至少带有一个开口并与阀座焊接固接。
螺母 32采用塑料等非金属材料。 可以将连接片 31作为嵌件通过模具 成型方法与螺母 32—体成型形成组件。优选的螺母采用模具注塑成型的方 法， 因螺母内孔 dl < d2 < d3 , 螺母中部呈逐级台阶状， 所以注塑成型时， 螺母中部的通孔可通过一体式模芯成型。 加工模具模芯时可采用一次性装 夹加工， 这样其同轴度极易保证， 从而也可确保螺母内孔 dl、 d2、 d3三者 之间的同轴度。 同时， 由于支承部 70所对应的外缘直径 D2大于螺母连接 部 60所对应的外缘直径 D1 ,这样连接部 60的圓柱材料厚度加大，便于连 接片 31嵌入到螺母 32中， 保证连接强度。 螺母 32通过连接片 31固定在 所述阀座 12上。
其中， 定位导向部 80所对应的内孔上具有导向段 321 , 螺母 32通过 其导向段 321 , 实现与阀芯座 11的定位配合。
在螺母 32的螺母连接部 60与支承部 70之间，径向开设有连通螺母内 孔与阀腔 121平衡孔 71。
阀针丝杆组件包括丝杆 23和由丝杆 23带动的阀针 21 ,在本实施例中， 阀针丝杆组件还进一步包括阀针套 22、 挡圏 24、 弹簧 25, 阀针 21与阀针 套 22连接成一体， 阀针 21与阀针套 22具体可以通过焊接、过盈压配等方 式连接成一体， 丝杆 23的头部套装有挡圏 24, 挡圏 24可以通过焊接、 过 盈压配等方式与丝杆 23套装， 丝杆 23卡装在阀针 21的内孔中， 阀针 21 内孔中还设有弹簧 25, 丝杆 23的端部可抵靠弹簧 25。 丝杆 23与阀针 21 之间为弹性连接。 阀针 21的外缘部具有导向段 211。
转子组件包括转子 41、 止动杆 42和连接二者的连接体， 转子组件固 定在丝杆 23的上端。
具体方案中， 电动阀还包括外壳 5, 外壳 5套装在阀座 12上， 用于密 封阀体。
在阀芯座 11的外缘部上设置有圓形台阶面，在台阶面上设置有第一导 向段 111 , 阀芯座 11的第一导向段 111与螺母 32的导向段 321配合，使阀 芯座 11与螺母 32定位配合。
在阀芯座 11上还设有阀芯容纳腔 114, 在容纳腔 114的内缘部设置有 第二导向段 112。 在阀芯座 11上还设置有连接容纳腔 114与阀腔 121的开 口 115。 阀芯座 11的第二导向段 112与阀针的导向段 211配合。 使阀针 21 可沿轴向滑动地设置在所述阀芯座 11的容纳腔 114中。
应该指出的是，本领域的技术人员可以理解， 本发明所说的 "内缘部" 或 "外缘部"， 是指的孔的轴向内缘部或轴的轴向外缘部， 如在本实施例中 为螺母的孔的轴向内圓面或轴向外圓面。
本发明提供的电动阀， 由于丝 4干导向段 322的孔径 dl小于螺紋段 61 的螺纹内径 d2。 螺母连接部 60的螺纹段 61的螺纹内径 d2小于定位导向 部 80所对应的内孔孔径 d3。 所以可以先将阀针丝杆组件与螺母螺合， 再 同时使螺母下端设置的导向端和阀针导向段分别轴向滑动的与阀芯座上的 第一导向段和第二导向段配合安装到位， 然后通过将连接片与阀座焊接方 式， 将螺母组件固定在阀座上。 装配过程筒单合理。
由于阀芯座的第一导向部和第二导向部及阀芯座上的阀口， 都可以同 时一次性加工成型或采用模具成型， 以保证相对位置的公差要求和精度， 使得螺母和阀针丝杆组件及阀芯座的阀口的之间同轴度极易得到保证， 避 免出现阀口密封不严或阀口出现偏心磨损的问题； 同时， 由于阀针与阀口 的同轴度得到了提高， 转子组件的转子转动时的摩擦力会明显减小， 电动 阀的动作可靠性也会提高。
图 4为本发明所提供的一种电动阀另一种具体实施例的结构示意图； 图 5为螺母组件的外形图及轴侧剖视图； 图 6为阀芯座的外形图及轴侧剖 视图。 请参看图 4、 图 5和图 6。
该实施例与前述实施例不同点在于，在螺母 32下部的外缘部设置有导 向段 321; 阀针 21的外缘部具有导向段 211。
在阀芯座 11的内缘部上设置有圓形台阶面，其孔径较大的台阶面上设 置有第一导向段 111 , 阀芯座 11的第一导向段 111与螺母 32的导向段 321 配合， 使阀芯座 11与螺母 32固定连接； 其孔径较小的台阶面上设置有第 二导向段 112,其内孔则形成阀芯容纳腔 114, 阀芯座 11的第二导向段 112 与阀针的导向段 211 配合， 使阀针 21可沿轴向滑动地设置在所述阀芯座 11的容纳腔 114中。
以上所述仅是发明的优选实施方式的描述， 应当指出， 由于文字表达 的有限性， 而在客观上存在无限的具体结构， 对于本技术领域的普通技术 人员来说， 在不脱离本发明原理的前提下， 还可以做出若干改进和润饰， 这些改进和润饰也应视为本发明的保护范围。

Claims

权 利 要 求
1、 一种电动阀， 包括阀座组件、 转子组件， 阀针丝杆组件， 所述阀座 组件包括设有阀腔 (121)的阀座 (12)和固定在所述阀座 (12)上的带阀口（113) 的阀芯座 (11); 所述阀针丝杆组件包括丝杆 (23)和由所述丝杆 (23)带动的阀 针 (21);
其特征在于,还包括螺母组件,所述螺母组件包括螺母 (32)和连接片 (31), 所述螺母 (32)为中空的环状结构体， 包括靠近所述阀座组件的定位导 向部 (80)、 靠近所述转子组件的螺母连接部 (60), 及固定所述连接片（31)的 支承部 (70), 所述螺母连接部 (60)所对应的内孔上具有与所述丝杆 (23)螺纹 配合的螺纹段 (61);所述定位导向部 (80)所对应的内孔或外缘上具有导向段 (321), 所述螺母 (32)通过其导向段 (321), 实现与所述阀芯座 (11)的定位配 合。
2、 根据权利要求 1所述的电动阀， 其特征在于， 所述螺纹段 (61)的螺 纹内径 d2小于所述定位导向部 (80)所对应的内孔孔径 d3。
3、 根据权利要求 1所述的电动阀， 其特征在于， 所述螺母连接部 (60) 所对应的内孔上还具有与所述阀杆 (21)的配合的丝杆导向段 (322)。
4、根据权利要求 3所述的电动阀，其特征在于， 所述丝杆导向段 (322) 的孔径 dl小于所述螺紋段 (61)的螺纹内径 d2。
5、 根据权利要求 1所述的电动阀， 其特征在于， 所述支承部 (70)所对 应的外缘直径 D2大于所述螺母连接部 (60)所对应的外缘直径 D1。
6、根据权利要求 5所述的电动阀， 其特征在于， 还包括位于所述支承 部 （ 70 )和所述螺母连接部 （ 60 )之间的过渡部 （ 90 ) , 所述过渡部 （ 90 ) 的外缘直径大于所述螺母连接部（60 )所对应的外缘直径 D1 , 且小于所述 支7 部 （ 70 )所对应的外缘直径 D2。
7、 根据权利要求 1所述的电动阀， 其特征在于， 所述螺母连接部 (60) 所对应的外缘上还套接有转子组件的止动机构。
8、根据权利要求 1-7任一项所述的电动阀，其特征在于，所述螺母 (32) 为非金属材料制成， 所述连接片（31)为金属材料制成， 通过注塑成型方法， 使所述连接片（31)固定嵌入所述支承部 (70)。
9、 根据权利要求 8所述的电动阀， 其特征在于， 所述连接片（31)至少 带有一个开口， 并与所述阀座 (12)焊接固接。
10、 根据权利要求 1-8任一项所述的电动阀， 其特征在于， 所述螺母 (32)上还设置有连通所述螺母的内孔与所述阀腔的平衡孔 (71)。
11、 根据权利要求 1-8任一项所述的电动阀， 其特征在于， 所述支承 部 (70)与定位导向部 (80)和螺母连接部 (60)之间通过内孔或外缘的台阶分 割。
PCT/CN2011/080796 2010-10-15 2011-10-14 一种电动阀 WO2012048658A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2013533084A JP5987834B2 (ja) 2010-10-15 2011-10-14 電動弁
KR1020137012518A KR101458424B1 (ko) 2010-10-15 2011-10-14 전동밸브
CN201180049850.5A CN103261765B (zh) 2010-10-15 2011-10-14 一种电动阀

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN201010515238.X 2010-10-15
CN201010515234.1 2010-10-15
CN201010515238XA CN102454819B (zh) 2010-10-15 2010-10-15 电动阀及其止动装置
CN2010105152341A CN102454818A (zh) 2010-10-15 2010-10-15 一种电动阀
CN201110184918.2 2011-07-01
CN201110184918.2A CN102853086B (zh) 2011-07-01 2011-07-01 一种电动阀装置

Publications (1)

Publication Number Publication Date
WO2012048658A1 true WO2012048658A1 (zh) 2012-04-19

Family

ID=45937908

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/CN2011/080797 WO2012048659A1 (zh) 2010-10-15 2011-10-14 一种电动阀
PCT/CN2011/080796 WO2012048658A1 (zh) 2010-10-15 2011-10-14 一种电动阀

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/080797 WO2012048659A1 (zh) 2010-10-15 2011-10-14 一种电动阀

Country Status (4)

Country Link
JP (2) JP5987834B2 (zh)
KR (2) KR101455952B1 (zh)
CN (2) CN103261766B (zh)
WO (2) WO2012048659A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112576800A (zh) * 2019-09-29 2021-03-30 浙江盾安禾田金属有限公司 电磁三通阀装配方法及电磁三通阀

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107061762B (zh) * 2016-12-13 2022-03-25 盾安环境技术有限公司 一种导阀和主阀体连接结构及方法
JP6753789B2 (ja) * 2017-01-25 2020-09-09 株式会社鷺宮製作所 電動弁及び冷凍サイクルシステム
US11788642B2 (en) * 2018-01-31 2023-10-17 Zhejiang Sanhua Commercial Refrigeration Controls Co., Ltd. Electric valve and manufacturing method therefor
WO2020034423A1 (zh) * 2018-08-17 2020-02-20 浙江盾安禾田金属有限公司 无标题
CN114017515A (zh) * 2019-04-24 2022-02-08 浙江恒森实业集团有限公司 一种电子膨胀阀转子总成
CN110242480B (zh) * 2019-07-29 2020-05-22 秦皇岛凡尔科技有限公司 一种管道发电机及其电动阀
CN114183547A (zh) * 2019-11-19 2022-03-15 浙江盾安禾田金属有限公司 电子膨胀阀
WO2023005178A1 (zh) * 2021-07-30 2023-02-02 浙江三花智能控制股份有限公司 一种电动阀

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001050415A (ja) * 1999-06-02 2001-02-23 Fuji Koki Corp 電動弁
JP2003148643A (ja) * 2001-09-03 2003-05-21 Saginomiya Seisakusho Inc 電動弁
CN1749606A (zh) * 2004-09-17 2006-03-22 株式会社不二工机 电动阀
CN1789768A (zh) * 2004-12-14 2006-06-21 浙江三花制冷集团有限公司 电子膨胀阀
CN101294634A (zh) * 2007-03-20 2008-10-29 株式会社不二工机 电动阀
JP2009168050A (ja) * 2008-01-10 2009-07-30 Fuji Koki Corp 可逆式流量制御弁
CN101788073A (zh) * 2009-01-22 2010-07-28 株式会社不二工机 电动阀

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3164480B2 (ja) * 1994-11-11 2001-05-08 太平洋工業株式会社 電動膨張弁の構造
JP3937029B2 (ja) * 1999-03-26 2007-06-27 株式会社鷺宮製作所 電動弁
JP4668480B2 (ja) * 2001-08-31 2011-04-13 株式会社不二工機 電動弁
JP2004360762A (ja) * 2003-06-03 2004-12-24 Saginomiya Seisakusho Inc 電動弁
JP4476757B2 (ja) 2004-09-16 2010-06-09 株式会社鷺宮製作所 弁装置および冷凍サイクル装置
JP4721771B2 (ja) * 2004-09-17 2011-07-13 株式会社不二工機 電動弁
JP4612377B2 (ja) * 2004-09-17 2011-01-12 株式会社不二工機 電動弁
JP4659514B2 (ja) * 2005-05-11 2011-03-30 株式会社鷺宮製作所 電動式コントロールバルブ
JP4805617B2 (ja) 2005-07-01 2011-11-02 株式会社鷺宮製作所 電動式コントロールバルブ
JP5055013B2 (ja) * 2007-05-07 2012-10-24 株式会社不二工機 電動弁
JP4669051B2 (ja) * 2008-07-16 2011-04-13 株式会社鷺宮製作所 電動弁
JP4679613B2 (ja) * 2008-08-04 2011-04-27 株式会社鷺宮製作所 電動弁

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001050415A (ja) * 1999-06-02 2001-02-23 Fuji Koki Corp 電動弁
JP2003148643A (ja) * 2001-09-03 2003-05-21 Saginomiya Seisakusho Inc 電動弁
CN1749606A (zh) * 2004-09-17 2006-03-22 株式会社不二工机 电动阀
CN1789768A (zh) * 2004-12-14 2006-06-21 浙江三花制冷集团有限公司 电子膨胀阀
CN101294634A (zh) * 2007-03-20 2008-10-29 株式会社不二工机 电动阀
JP2009168050A (ja) * 2008-01-10 2009-07-30 Fuji Koki Corp 可逆式流量制御弁
CN101788073A (zh) * 2009-01-22 2010-07-28 株式会社不二工机 电动阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112576800A (zh) * 2019-09-29 2021-03-30 浙江盾安禾田金属有限公司 电磁三通阀装配方法及电磁三通阀
CN112576800B (zh) * 2019-09-29 2022-06-17 浙江盾安禾田金属有限公司 电磁三通阀装配方法及电磁三通阀

Also Published As

Publication number Publication date
JP2013539849A (ja) 2013-10-28
KR20130085038A (ko) 2013-07-26
WO2012048659A1 (zh) 2012-04-19
CN103261766B (zh) 2015-04-15
KR20130085039A (ko) 2013-07-26
JP5716980B2 (ja) 2015-05-13
KR101455952B1 (ko) 2014-10-28
JP5987834B2 (ja) 2016-09-07
CN103261765B (zh) 2015-05-20
CN103261765A (zh) 2013-08-21
JP2013539850A (ja) 2013-10-28
KR101455952B9 (ko) 2024-01-26
KR101458424B1 (ko) 2014-11-07
CN103261766A (zh) 2013-08-21

Similar Documents

Publication Publication Date Title
WO2012048658A1 (zh) 一种电动阀
JP5510685B2 (ja) 電動弁
US10352467B2 (en) Direct-action-type electrically-operated valve and assembly method therefor
US11788642B2 (en) Electric valve and manufacturing method therefor
US11365822B2 (en) Direct action type electrically operated valve
CN110094525B (zh) 一种电动阀及其制造方法
CN106795971B (zh) 带有罩壳的配件
JP2018179205A (ja) 制御弁およびその製造方法
US11313485B2 (en) Electric valve and manufacturing method thereof
EP4246022A1 (en) Electric valve
CN211574369U (zh) 一种电子膨胀阀
CN111594628A (zh) 一种电子膨胀阀
CN110836269B (zh) 电子膨胀阀及使用该电子膨胀阀的空调系统
CN111140687A (zh) 电子膨胀阀
WO2023142225A1 (zh) 电子膨胀阀和制冷设备
JP2006292149A (ja) 電動弁
CN117090983A (zh) 一种电动阀
CN117212529A (zh) 一种阀装置
CN114087388A (zh) 一种电动阀装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11832055

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2013533084

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20137012518

Country of ref document: KR

Kind code of ref document: A

122 Ep: pct application non-entry in european phase

Ref document number: 11832055

Country of ref document: EP

Kind code of ref document: A1