WO2022148444A1 - 电磁阀 - Google Patents

电磁阀 Download PDF

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Publication number
WO2022148444A1
WO2022148444A1 PCT/CN2022/070795 CN2022070795W WO2022148444A1 WO 2022148444 A1 WO2022148444 A1 WO 2022148444A1 CN 2022070795 W CN2022070795 W CN 2022070795W WO 2022148444 A1 WO2022148444 A1 WO 2022148444A1
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WO
WIPO (PCT)
Prior art keywords
positioning
solenoid valve
valve
seat
valve according
Prior art date
Application number
PCT/CN2022/070795
Other languages
English (en)
French (fr)
Inventor
俞舟
马彦婷
林元阳
Original Assignee
浙江盾安人工环境股份有限公司
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
Priority claimed from CN202120054506.6U external-priority patent/CN219734230U/zh
Priority claimed from CN202110026492.1A external-priority patent/CN114738495B/zh
Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Priority to JP2023526316A priority Critical patent/JP2024501917A/ja
Priority to EP22736605.1A priority patent/EP4276337A1/en
Publication of WO2022148444A1 publication Critical patent/WO2022148444A1/zh

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    • 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
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • F16K31/0665—Lift valves with valve member being at least partially ball-shaped
    • 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
    • F16K1/36—Valve members
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated valves

Definitions

  • the present application relates to the technical field of solenoid valves, and in particular, to a solenoid valve.
  • the solenoid valve in the prior art generally includes a valve seat, a core iron part, an inlet nozzle and an outlet nozzle.
  • the valve seat is provided with an inlet, an outlet and a valve cavity communicating with the inlet and the outlet, and the core iron part is movably arranged In the valve cavity, the inlet pipe is arranged at the inlet, and the outlet pipe is arranged at the outlet.
  • the core iron components include core iron and steel balls.
  • valve pressure difference of the solenoid valve in the prior art is small, which is not conducive to reducing the minimum operating voltage.
  • the main purpose of the present application is to provide a solenoid valve to solve the technical problem that the valve pressure difference of the solenoid valve in the prior art is small.
  • the present application provides a solenoid valve, comprising: a valve seat, the valve seat has an inlet, an outlet, and a valve cavity communicating with the inlet and the outlet; a core iron, movably arranged in the valve cavity, the core iron A riveting cavity is arranged inside; the steel ball is movably arranged in the riveting cavity along the axial direction of the valve seat.
  • the steel ball has a first abutting position and a second abutting position abutting against the riveting cavity, the height difference between the first abutting position and the second abutting position is h, 0.3mm ⁇ h ⁇ 0.5mm .
  • the riveting cavity is a conical cavity.
  • the core iron is also provided with a balance hole, the balance hole extends along the radial direction of the valve seat, and the balance hole communicates with the riveting cavity.
  • the solenoid valve further includes: a valve port seat, which is arranged at the outlet of the valve seat, and a communication channel that communicates with the valve cavity is arranged in the valve port seat; Inside, the connecting end protrudes out of the valve seat, a first positioning step is arranged between the connecting end and the supporting end, and the first positioning step is used for abutting and positioning with the outlet of the valve seat.
  • the first positioning step includes a first positioning surface and a second positioning surface that are connected to each other
  • the opening of the valve seat has a positioning inner wall and a positioning side wall that are connected to each other, the first positioning surface and the positioning inner wall At least a part of the positioning surface is positioned in a fit with the positioning side wall, and the second positioning surface is arranged protruding from the positioning side wall.
  • the second positioning surface includes a first matching ring surface and a second matching ring surface which are connected and arranged in the axial direction, the first matching ring surface and the positioning side wall are in an interference fit, and the second matching ring surface and the positioning side wall are arranged at intervals. , so that the solder enters into the gap between the second mating ring surface and the positioning sidewall.
  • the solenoid valve further includes a first connecting pipe, the first connecting pipe is connected with the connecting end of the valve port seat, and the valve seat, the valve port seat and the first connecting pipe are connected by the same welding seam.
  • valve port seat is also provided with a second positioning step, the second positioning step is arranged on the side of the first positioning step close to the connecting end, and the solenoid valve further includes: a first connecting pipe for positioning and matching with the second positioning step.
  • the second positioning step also includes a third positioning surface and a fourth positioning surface, the third positioning surface and the end of the first nozzle are fitted and positioned, and at least part of the fourth positioning surface is over the inner wall of the first nozzle. Win cooperation.
  • the solenoid valve further includes: a sleeve sleeved on the valve seat, and the wall thickness of the sleeve is ⁇ 1 , and 0.45mm ⁇ 1 ⁇ 0.6mm.
  • the solenoid valve further includes: a mouthpiece, disposed at the inlet and/or the outlet.
  • the outer diameter of the mouthpiece is d, and d ⁇ 8mm.
  • the mouthpiece is made of red copper, and the wall thickness of the mouthpiece is ⁇ 2 , 1mm ⁇ 2 ⁇ 1.25mm.
  • the mouthpiece is made of steel material, and the wall thickness of the mouthpiece is ⁇ 2 , and 0.5mm ⁇ 2 ⁇ 1mm.
  • one end of the sleeve is welded on the valve seat.
  • the sleeve has a first welding seam on the valve seat, and the welding depth of the first welding seam is ⁇ 3 , and ⁇ 3 / ⁇ 1 ⁇ 0.5.
  • the solenoid valve further includes: an attractor arranged on the other end of the sleeve.
  • the other end of the sleeve is welded on the attractor.
  • the sleeve has a second welding seam on the attractor, and the welding depth of the second welding seam is ⁇ 4 , and ⁇ 4 / ⁇ 1 ⁇ 0.5.
  • the steel ball can be movably arranged in the riveting cavity along the axial direction of the valve seat, so that the steel ball can have a certain distance difference in the axial direction in the riveting cavity, so that the valve opening pressure can be greatly increased. Poor, increase the reliability of work, reduce the minimum operating voltage. Therefore, through the technical solution provided in this embodiment, the technical problem that the valve pressure difference of the solenoid valve in the prior art is small can be solved.
  • FIG. 1 shows a schematic structural diagram of a solenoid valve provided according to an embodiment of the present application
  • Figure 2 shows an enlarged view at A in Figure 1;
  • FIG. 3 shows a schematic structural diagram of a steel ball provided according to an embodiment of the present application when it is in a first abutting position
  • FIG. 4 shows a schematic structural diagram of a steel ball provided according to an embodiment of the present application when it is in a second abutting position
  • FIG. 5 shows a schematic structural diagram of the height difference between the first abutting position and the second abutting position of the steel ball provided according to an embodiment of the present application
  • FIG. 6 shows a schematic diagram of a partial dimension of a solenoid valve provided according to an embodiment of the present invention.
  • valve seat 10, valve seat; 11, inlet; 12, outlet; 13, valve cavity; 20, core iron; 21, riveting cavity; 22, balance hole; 30, steel ball; 40, valve port seat; 41, communication channel; 42, 421, the first positioning surface; 422, the second positioning surface; 4221, the first matching ring surface; 4222, the second matching ring surface; 43, the second positioning step; 431, the third positioning surface; 432 , the fourth positioning surface; 51, the first pipe; 52, the second pipe; 60, the attractor; 70, the return spring; 80, the casing; 90, the magnetic ring.
  • the first embodiment of the present application provides a solenoid valve, which includes a valve seat 10 , a core iron 20 , a steel ball 30 , an attractor 60 , a return spring 70 , a sleeve 80 and
  • the magnetic separation ring 90 and the valve seat 10 have an inlet 11 , an outlet 12 and a valve cavity 13 communicating with the inlet 11 and the outlet 12 .
  • the core iron 20 is movably arranged in the valve cavity 13
  • a riveting cavity 21 is arranged in the core iron 20 .
  • the steel ball 30 is movably arranged in the riveting cavity 21 along the axial direction of the valve seat 10 , and the steel ball 30 is riveted with the valve seat 10 .
  • the steel ball 30 can be movably arranged in the riveting cavity 21 along the axial direction of the valve seat 10, so that the steel ball 30 can have a certain distance difference along the axial direction in the riveting cavity 21, Therefore, the valve opening pressure difference can be greatly improved, the working reliability can be increased, and the minimum operating voltage can be reduced. Therefore, through the technical solution provided in this embodiment, the technical problem that the valve pressure difference of the solenoid valve in the prior art is small can be solved.
  • the steel ball 30 has a first abutment position and a second abutment position that abut against the riveting cavity 21 , and the height difference between the first abutment position and the second abutment position is h, 0.3 mm ⁇ h ⁇ 0.5mm.
  • the riveting cavity 21 in this embodiment is a conical cavity, so as to facilitate the smooth movement of the steel ball 30 in the riveting cavity 21, and at the same time, it is also convenient for production.
  • the core iron 20 is further provided with a balance hole 22 , the balance hole 22 extends along the radial direction of the valve seat 10 , and the balance hole 22 communicates with the riveting cavity 21 .
  • the liquid in the riveting cavity 21 can be easily flowed into the balance hole 22 .
  • the gap between the steel ball 30 and the inner wall of the riveting cavity 21 in this embodiment is not less than 0.1 mm.
  • the solenoid valve in this embodiment further includes a valve port seat 40 , the valve port seat 40 is disposed at the outlet 12 of the valve seat 10 , and the valve port seat 40 is provided with a communication channel 41 that communicates with the valve cavity 13 .
  • the valve seat 40 has a connecting end and a supporting end arranged oppositely, the supporting end is arranged in the valve cavity 13, the connecting end extends out of the valve seat 10, and a first positioning step 42 is arranged between the connecting end and the supporting end, and the first positioning step 42 is provided between the connecting end and the supporting end.
  • the step 42 is used for abutting and positioning with the outlet 12 of the valve seat 10 .
  • valve seat 10 By adopting such a structural arrangement, by arranging two parts, the valve seat 10 and the valve seat 40, the processing difficulty of the valve seat 10 can be easily reduced, and the valve seat 40 only needs to be installed at the outlet 12 of the valve seat 10, which also improves the processing efficiency. .
  • valve port seat 40 includes an inverted conical structure, and a flow channel is provided in the valve port seat 40 , and the flow channel is used for communicating with the valve cavity 13 .
  • the support end is located at the end of the reverse taper.
  • the first positioning step 42 includes a first positioning surface 421 and a second positioning surface 422 that are connected to each other.
  • the opening of the valve seat 10 has a positioning inner wall and a positioning side wall that are connected to each other.
  • the first positioning surface 421 and The positioning inner wall is fitted and positioned, at least a part of the second positioning surface 422 is fitted and positioned with the positioning side wall, and the second positioning surface 422 is arranged protruding from the positioning side wall.
  • the second positioning surface 422 protrudes from the positioning side wall also means “the height of the second positioning surface 422 is higher than the height of the positioning side wall, so that the second positioning surface 422 is exposed on the ground of the valve seat 10" , which also facilitates installation.
  • the second positioning surface 422 in this embodiment includes a first matching annular surface 4221 and a second matching annular surface 4222 connected along the axial direction of the valve seat 10 , and the first matching annular surface 4221 and the positioning sidewall are in an interference fit.
  • the second mating ring surface 4222 is spaced apart from the positioning sidewall, so that the solder enters into the gap between the second mating ring surface 4222 and the positioning sidewall.
  • the solenoid valve further includes a first connecting pipe 51 , which is connected to the connecting end of the valve seat 40 , and the valve seat 10 , the valve seat 40 and the first connecting pipe 51 are connected by the same welding seam.
  • valve port seat 40 in this embodiment is further provided with a second positioning step 43 , and the second positioning step 43 is arranged on the side of the first positioning step 42 close to the connecting end.
  • the solenoid valve further includes a first connecting pipe 51 .
  • the nozzle 51 is positioned and matched with the second positioning step 43 . With such a structural arrangement, the connection and positioning of the first nozzle 51 can be facilitated, so as to improve the stability of the arrangement of the first nozzle 51 .
  • the second positioning step 43 further includes a third positioning surface 431 and a fourth positioning surface 432 , the third positioning surface 431 and the end of the first connecting tube 51 are fitted and positioned, and at least the fourth positioning surface 432 Part of it is interference fit with the inner wall of the first connecting pipe 51 .
  • the fourth positioning surface 432 includes a third matching ring surface and a fourth matching ring surface that are connected along the axial direction of the valve seat 10 .
  • the third matching ring surface is in interference fit with the inner wall of the first nozzle 51 .
  • the surface is spaced apart from the inner wall of the first connecting pipe 51 , so that not only can the stability of the assembly be ensured, but also the ease of assembly can be ensured.
  • the solenoid valve further includes a second pipe 52 , and the second pipe 52 is connected to the inlet 11 of the valve seat 10 .
  • Both the first connecting pipe 51 and the second connecting pipe 52 are welded with the valve seat 10 .
  • the first connecting pipe 51 is matched with the valve seat 10 and welded after being flared, and the second connecting pipe 52 is matched with the valve seat 10 after being contracted and welded.
  • the valve seat 10 of the solenoid valve is composed of the valve seat 40 , the valve seat 10 , the inlet pipe (the second pipe 52 ), and the outlet pipe (the first pipe 51 ), wherein the valve seat 40 and the valve seat 10 are part of
  • the mating surface has an interference fit, and some mating surfaces have a clearance fit to facilitate the flow of solder.
  • the valve seat 40, the valve seat 10, and the outlet pipe are welded together and share a weld structure.
  • the valve port seat 40 is provided with a stepped surface (a first positioning step 42 ), and the stepped surface is limitedly matched with the valve seat 10 ; the valve port is provided on the valve port seat 40 .
  • the inlet 11 pipe is necked and matched with the valve seat 10 and welded; the outlet 12 pipe is flared and matched with the valve seat 40 and welded.
  • the core iron 20 is composed of the core iron 20 and the steel ball 30.
  • the solenoid valve in this embodiment further includes a steel ball 30 , the steel ball 30 is movably arranged in the riveting cavity 21 , the sleeve 80 is sleeved on the valve seat 10 , and the wall thickness of the sleeve 80 is ⁇ 1 , 0.45mm ⁇ 1 ⁇ 0.6mm.
  • the steel ball 30 is movably disposed in the riveting cavity 21, specifically, the steel ball 30 moves along the axial direction of the riveting cavity 21, so that the steel ball 30 has a A certain distance difference can greatly increase the valve pressure difference, increase the working reliability, and reduce the minimum operating voltage.
  • the wall thickness of the sleeve 80 within the above range, the structural strength of the sleeve 80 can be ensured, so as to meet the use conditions of the CO 2 (carbon dioxide) system and improve the pressure resistance level of the solenoid valve. Therefore, the solenoid valve provided by the present invention can solve the technical problem of insufficient pressure resistance level of the solenoid valve in the prior art.
  • the solenoid valve in this embodiment further includes a mouthpiece, and the mouthpiece is arranged at the inlet and/or the outlet.
  • the mouthpieces are provided at both the inlet and the outlet, so as to facilitate connection with other connecting pipes through the mouthpiece.
  • the mouthpiece includes a first nozzle 51 and a second nozzle 52 .
  • the outer diameter of the mouthpiece is d, and d ⁇ 8mm.
  • the mouthpiece in this embodiment is made of red copper.
  • the wall thickness of the mouthpiece is ⁇ 2 , and 1mm ⁇ 2 ⁇ 1.25mm to ensure the compressive strength.
  • the mouthpiece in this embodiment is made of steel material.
  • the wall thickness of the mouthpiece is ⁇ 2 , and 0.5mm ⁇ 2 ⁇ 1mm to ensure compressive strength.
  • one end of the sleeve 80 is welded on the valve seat 10 to ensure the connection strength.
  • the sleeve 80 in this embodiment has a first welding seam on the valve seat 10 , and the welding depth of the first welding seam is ⁇ 3 , and ⁇ 3 / ⁇ 1 ⁇ 0.5.
  • the welding strength can be ensured to ensure the compressive strength.
  • the solenoid valve further includes an attractor 60 , and the attractor 60 is disposed at the other end of the sleeve 80 .
  • the other end of the sleeve 80 in this embodiment is welded on the attractor 60 to improve the connection strength.
  • the sleeve 80 has a second welding seam on the attractor 60 , and the welding depth of the second welding seam is ⁇ 4 , and ⁇ 4 / ⁇ 1 ⁇ 0.5. With such a structural arrangement, the welding strength can be ensured to ensure the compressive strength.
  • the above-mentioned embodiments of the present application achieve the following technical effects: the development voltage difference is improved, the operation reliability is increased, and the minimum operation voltage is reduced.
  • orientations indicated by the orientation words such as “front, rear, top, bottom, left, right", “horizontal, vertical, vertical, horizontal” and “top, bottom” etc.
  • positional relationship is usually based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and these orientations do not indicate or imply the indicated device or element unless otherwise stated. It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be construed as a limitation on the protection scope of the application; the orientation words “inside and outside” refer to the inside and outside relative to the contour of each component itself.
  • spatially relative terms such as “on”, “over”, “on the surface”, “above”, etc., may be used herein to describe what is shown in the figures.
  • spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “above” or “over” other devices or features would then be oriented “below” or “over” the other devices or features under other devices or constructions”.
  • the exemplary term “above” can encompass both an orientation of "above” and “below.”
  • the device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

公开了一种电磁阀，包括：阀座（10），阀座（10）具有进口（11）、出口（12）以及与进口（11）和出口（12）均连通的阀腔（13）；芯铁（20），可活动地设置在阀腔（13）内，芯铁内设置有铆接腔（21）；钢球（30），钢球（30）沿阀座（10）的轴向可活动地设置在铆接腔内；能够解决现有技术中的电磁阀的阀压差较小的技术问题。

Description

电磁阀
本申请要求于2021年01月08日提交至中国国家知识产权局、申请号为202120054506.6、申请名称为“电磁阀”的专利申请的优先权，以及于2021年01月08日提交至中国国家知识产权局、申请号为202110026492.1、申请名称为“电磁阀”的专利申请的优先权。
技术领域
本申请涉及电磁阀技术领域，具体而言，涉及一种电磁阀。
背景技术
目前，现有技术中的电磁阀一般包括阀座、芯铁部件、进口接管和出口接管，阀座内设置有进口、出口以及与进口和出口均连通的阀腔，芯铁部件可活动地设置在阀腔内，进口接管设置在进口处，出口接管设置在出口处。一般的，芯铁部件包括芯铁和钢球。
然而，现有技术中的电磁阀的阀压差较小，不利于降低最低动作电压。
申请内容
本申请的主要目的在于提供一种电磁阀，以解决现有技术中的电磁阀的阀压差较小的技术问题。
为了实现上述目的，本申请提供了一种电磁阀，包括：阀座，阀座具有进口、出口以及与进口和出口均连通的阀腔；芯铁，可活动地设置在阀腔内，芯铁内设置有铆接腔；钢球，钢球沿阀座的轴向可活动地设置在铆接腔内。
进一步地，钢球具有与铆接腔抵接的第一抵接位置和第二抵接位置，第一抵接位置和第二抵接位置之间的高度差为h，0.3mm≤h≤0.5mm。
进一步地，铆接腔为锥形腔。
进一步地，芯铁上还设置有平衡孔，平衡孔沿阀座的径向延伸，平衡孔与铆接腔连通。
进一步地，电磁阀还包括：阀口座，设置在阀座的出口处，阀口座内设置有与阀腔连通的连通通道；阀口座具有相对设置的连接端和支撑端，支撑端设置在阀腔内，连接端伸出至阀座外，连接端和支撑端之间设置有第一定位台阶，第一定位台阶用于与阀座的出口抵接定位。
进一步地，第一定位台阶包括相互连接的第一定位面和第二定位面，阀座的开口处具有相互连接的定位内壁和定位侧壁，第一定位面与定位内壁贴合定位，第二定位面的至少部分与定位侧壁贴合定位，第二定位面凸出于定位侧壁设置。
进一步地，第二定位面包括沿轴向连接设置的第一配合环面和第二配合环面，第一配合环面与定位侧壁过盈配合，第二配合环面与定位侧壁间隔设置，以使焊料进入至第二配合环面和定位侧壁之间的间隙内。
进一步地，电磁阀还包括第一接管，第一接管与阀口座的连接端连接，阀座、阀口座和第一接管通过同一焊缝进行连接。
进一步地，阀口座上还设置有第二定位台阶，第二定位台阶设置在第一定位台阶靠近连接端的一侧，电磁阀还包括：第一接管，与第二定位台阶进行定位配合。
进一步地，第二定位台阶还包括第三定位面和第四定位面，第三定位面与第一接管的端部进行贴合定位，第四定位面的至少部分与第一接管的内壁进行过盈配合。
进一步地，电磁阀还包括：套管，套设在阀座上，套管的壁厚为δ 1，0.45mm≤δ 1≤0.6mm。
进一步地，电磁阀还包括：接口管，设置在进口和/或出口处。
进一步地，接口管的外径为d，d≤8mm。
进一步地，接口管由紫铜制成，接口管的壁厚为δ 2，1mm≤δ 2≤1.25mm。
进一步地，接口管由钢材料制成，接口管的壁厚为δ 2，0.5mm≤δ 2≤1mm。
进一步地，套管的一端焊接在阀座上。
进一步地，套管在阀座上具有第一焊缝，第一焊缝的焊接深度为δ 3，δ 3/δ 1≥0.5。
进一步地，电磁阀还包括：吸引子，设置在套管的另一端。
进一步地，套管的另一端焊接在吸引子上。
进一步地，套管在吸引子上具有第二焊缝，第二焊缝的焊接深度为δ 4，δ 4/δ 1≥0.5。
应用本申请的技术方案，通过使钢球沿阀座的轴向可活动地设置在铆接腔内，使得钢球能够在铆接腔内沿轴向有一定的距离差，从而能够大幅提升开阀压差，增加工作可靠性，降低最低动作电压。因此，通过本实施例提供的技术方案，能够解决现有技术中的电磁阀的阀压差较小的技术问题。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出了根据本申请的实施例提供的电磁阀的结构示意图；
图2示出了图1中的A处的放大图；
图3示出了根据本申请的实施例提供的钢球处于第一抵接位置时的结构示意图；
图4示出了根据本申请的实施例提供的钢球处于第二抵接位置时的结构示意图；
图5示出了根据本申请的实施例提供的钢球处于第一抵接位置和第二抵接位置的高度差的结构示意图；
图6示出了根据本实用新型的实施例提供的电磁阀的部分尺寸示意图。
其中，上述附图包括以下附图标记：
10、阀座；11、进口；12、出口；13、阀腔；20、芯铁；21、铆接腔；22、平衡孔；30、钢球；40、阀口座；41、连通通道；42、第一定位台阶；421、第一定位面；422、第二定位面；4221、第一配合环面；4222、第二配合环面；43、第二定位台阶；431、第三定位面；432、第四定位面；51、第一接管；52、第二接管；60、吸引子；70、回复弹簧；80、套管；90、分磁环。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
如图1至图6所示，本申请的实施例一提供了一种电磁阀，该电磁阀包括阀座10、芯铁20、钢球30、吸引子60、回复弹簧70、套管80和分磁环90，阀座10具有进口11、出口12以及与进口11和出口12均连通的阀腔13。芯铁20可活动地设置在阀腔13内，芯铁20内设置有铆接腔21。钢球30沿阀座10的轴向可活动地设置在铆接腔21内，钢球30与阀座10铆接而成。
采用本实施例提供的电磁阀，通过使钢球30沿阀座10的轴向可活动地设置在铆接腔21内，使得钢球30能够在铆接腔21内沿轴向有一定的距离差，从而能够大幅提升开阀压差，增加工作可靠性，降低最低动作电压。因此，通过本实施例提供的技术方案，能够解决现有技术中的电磁阀的阀压差较小的技术问题。
在本实施例中，钢球30具有与铆接腔21抵接的第一抵接位置和第二抵接位置，第一抵接位置和第二抵接位置之间的高度差为h，0.3mm≤h≤0.5mm。通过使第一抵接位置和第二抵接位置的高度差设置在上述距离范围内，能够便于更好地提升开阀压差，以便于更好地增加都给你做可靠性，降低动作电压。
具体的，本实施例中的铆接腔21为锥形腔，以便于使钢球30在铆接腔21内顺利移动，同时也便于进行生产制造。
在本实施例中，在芯铁20上还设置有平衡孔22，平衡孔22沿阀座10的径向延伸，平衡孔22与铆接腔21连通。采用这样的结构设置，能够便于使铆接腔21内的液体流入至平衡孔22内。具体的，本实施例中的钢球30与铆接腔21的内壁之间具有一定的间隙，以便于使铆 接腔21内的液体能够顺利流入至平衡孔22内。具体的，本实施例中的钢球30与铆接腔21的内壁之间的间隙不小于0.1mm。
具体的，本实施例中电磁阀还包括阀口座40，阀口座40设置在阀座10的出口12处，阀口座40内设置有与阀腔13连通的连通通道41。阀口座40具有相对设置的连接端和支撑端，支撑端设置在阀腔13内，连接端伸出至阀座10外，连接端和支撑端之间设置有第一定位台阶42，第一定位台阶42用于与阀座10的出口12抵接定位。采用这样的结构设置，通过设置阀座10和阀口座40两个零件，能够便于降低阀座10的加工难度，只需要将阀口座40安装在阀座10的出口12处，也提高了加工效率。
具体的，阀口座40包括倒锥形结构，阀口座40内设置有流通通道，流通通道用于与阀腔13进行连通。支撑端位于倒锥形的端部。
在本实施例中，第一定位台阶42包括相互连接的第一定位面421和第二定位面422，阀座10的开口处具有相互连接的定位内壁和定位侧壁，第一定位面421与定位内壁贴合定位，第二定位面422的至少部分与定位侧壁贴合定位，第二定位面422凸出于定位侧壁设置。采用这样的结构设置，能够便于使阀座10和阀口座40进行定位，提高设置的稳定性。同时，“第二定位面422凸出于定位侧壁设置”也即为“第二定位面422的高度高于定位侧壁的高度，以使第二定位面422露出阀座10的地面设置”，这样也能够便于安装。
具体的，本实施例中的第二定位面422包括沿阀座10的轴向连接设置的第一配合环面4221和第二配合环面4222，第一配合环面4221与定位侧壁过盈配合，第二配合环面4222与定位侧壁间隔设置，以使焊料进入至第二配合环面4222和定位侧壁之间的间隙内。采用这样的结构设置，能够便于进行焊接，提高焊接的稳定性。
在本实施例中，电磁阀还包括第一接管51，第一接管51与阀口座40的连接端连接，阀座10、阀口座40和第一接管51通过同一焊缝进行连接。采用这样的结构设置，能够进行一体化焊接，保证焊接效率，提高连接的稳定性，可满足CO2(二氧化碳)系统高压力的需求。
具体的，本实施例中的阀口座40上还设置有第二定位台阶43，第二定位台阶43设置在第一定位台阶42靠近连接端的一侧，电磁阀还包括第一接管51，第一接管51与第二定位台阶43进行定位配合。采用这样的结构设置，能够便于对第一接管51进行连接和定位，以提高第一接管51的设置稳定性。
在本实施例中，第二定位台阶43还包括第三定位面431和第四定位面432，第三定位面431与第一接管51的端部进行贴合定位，第四定位面432的至少部分与第一接管51的内壁进行过盈配合。具体的，第四定位面432包括沿阀座10的轴向连接设置第三配合环面和第四配合环面，第三配合环面与第一接管51的内壁过盈配合，第四配合环面与第一接管51的内壁间隔设置，这样，既能够保证装配的稳定性，又能够保证便于进行装配。
在本实施例中，电磁阀还包括第二接管52，第二接管52与阀座10的进口11连接。第一接管51和第二接管52均与阀座10焊接。第一接管51扩口后与阀座10配合并焊接，第二接 管52缩口后与阀座10配合并焊接。
在本实施例中，电磁阀的阀座10部件由阀口座40、阀座10、进口接管(第二接管52)、出口接管(第一接管51)组成，其中阀口座40与阀座10部分配合面过盈配合，同时有部分配合面间隙配合以方便焊料流通，阀口座40、阀座10、出口接管一体焊接、共用一个焊缝结构。阀口座40设有台阶面(第一定位台阶42)，台阶面与阀座10限位配合；阀口设于阀口座40上。阀口座40与阀座10压装后露出阀座10底面，距离δ>0；阀口座40与出口接管过盈配合，同时有部分间隙配合以方便焊料流通，接管与阀口座40接触端面露出阀座10底面，距离δ>0(如图2所示)。进口11管缩口后与阀座10配合并焊接；出口12管扩口后与阀口座40配合并焊接。芯铁20部件由芯铁20和钢球30组成，钢球30与芯铁20铆接而成，铆接后钢球30与芯铁20可灵活移动，移动距离h＝0.3～0.5。
具体地，本实施例中的电磁阀还包括钢球30，钢球30可移动地设置在铆接腔21内，套管80套设在阀座10上，套管80的壁厚为δ 1，0.45mm≤δ 1≤0.6mm。
采用本实施例提供的电磁阀，通过使钢球30可移动地设置在铆接腔21内，具体的，钢球30沿铆接腔21的轴向移动，以使钢球30在铆接腔21内有一定的距离差，从而能够大幅提升阀压差，增加工作可靠性，降低最低动作电压。通过将套管80的壁厚设置在上述范围内，能够保证套管80的结构强度，以满足CO 2(二氧化碳)系统的使用条件，提高了电磁阀的耐压等级。因此，通过本实用新型提供的电磁阀，能够解决现有技术中的电磁阀的耐压等级不够的技术问题。
具体的，本实施例中的电磁阀还包括接口管，接口管设置在进口和/或出口处。优选的，在进口处和出口处均设置有接口管，以便于通过接口管与其他连接管进行连接。具体地，接口管包括第一接管51和第二接管52。
在本实施例中，接口管的外径为d，d≤8mm。
具体的，本实施例中的接口管由紫铜制成，当接口管的外径小于等于8mm时，接口管的壁厚为δ 2，1mm≤δ 2≤1.25mm，以保证耐压强度。
具体的，本实施例中的接口管由钢材料制成，当接口管的外径小于等于8mm时，接口管的壁厚为δ 2，0.5mm≤δ 2≤1mm，以保证耐压强度。
在本实施例中，套管80的一端焊接在阀座10上，以保证连接强度。
具体的，本实施例中的套管80在阀座10上具有第一焊缝，第一焊缝的焊接深度为δ 3，δ 3/δ 1≥0.5。采用这样的结构设置，能够保证焊接强度，以确保耐压强度。
在本实施例中，电磁阀还包括吸引子60，吸引子60设置在套管80的另一端。
具体的，本实施例中的套管80的另一端焊接在吸引子60上，以提高连接强度。
本实施例中，套管80在吸引子60上具有第二焊缝，第二焊缝的焊接深度为δ 4，δ 4/δ 1≥0.5。采用这样的结构设置，能够保证焊接强度，以确保耐压强度。
从以上的描述中，可以看出，本申请上述的实施例实现了如下技术效果：提升了开发压差，增加了动作可靠性，降低了最低动作电压。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本申请的范围。同时，应当明白，为了便于描述，附图中所示出的各个部分的尺寸并不是按照实际的比例关系绘制的。对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为授权说明书的一部分。在这里示出和讨论的所有示例中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它示例可以具有不同的值。应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
在本申请的描述中，需要理解的是，方位词如“前、后、上、下、左、右”、“横向、竖向、垂直、水平”和“顶、底”等所指示的方位或位置关系通常是基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，在未作相反说明的情况下，这些方位词并不指示和暗示所指的装置或元件必须具有特定的方位或者以特定的方位构造和操作，因此不能理解为对本申请保护范围的限制；方位词“内、外”是指相对于各部件本身的轮廓的内外。
为了便于描述，在这里可以使用空间相对术语，如“在……之上”、“在……上方”、“在……上表面”、“上面的”等，用来描述如在图中所示的一个器件或特征与其他器件或特征的空间位置关系。应当理解的是，空间相对术语旨在包含除了器件在图中所描述的方位之外的在使用或操作中的不同方位。例如，如果附图中的器件被倒置，则描述为“在其他器件或构造上方”或“在其他器件或构造之上”的器件之后将被定位为“在其他器件或构造下方”或“在其他器件或构造之下”。因而，示例性术语“在……上方”可以包括“在……上方”和“在……下方”两种方位。该器件也可以其他不同方式定位(旋转90度或处于其他方位)，并且对这里所使用的空间相对描述作出相应解释。
此外，需要说明的是，使用“第一”、“第二”等词语来限定零部件，仅仅是为了便于对相应零部件进行区别，如没有另行声明，上述词语并没有特殊含义，因此不能理解为对本申请保护范围的限制。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (20)

  1. 一种电磁阀，其特征在于，包括：
    阀座(10)，所述阀座(10)具有进口(11)、出口(12)以及与所述进口(11)和所述出口(12)均连通的阀腔(13)；
    芯铁(20)，可活动地设置在所述阀腔(13)内，所述芯铁(20)内设置有铆接腔(21)；
    钢球(30)，所述钢球(30)沿所述阀座(10)的轴向可活动地设置在所述铆接腔(21)内。
  2. 根据权利要求1所述的电磁阀，其特征在于，所述钢球(30)具有与所述铆接腔(21)抵接的第一抵接位置和第二抵接位置，所述第一抵接位置和所述第二抵接位置之间的高度差为h，0.3mm≤h≤0.5mm。
  3. 根据权利要求1所述的电磁阀，其特征在于，所述铆接腔(21)为锥形腔。
  4. 根据权利要求1所述的电磁阀，其特征在于，所述芯铁(20)上还设置有平衡孔(22)，所述平衡孔(22)沿所述阀座(10)的径向延伸，所述平衡孔(22)与所述铆接腔(21)连通。
  5. 根据权利要求1所述的电磁阀，其特征在于，所述电磁阀还包括：
    阀口座(40)，设置在所述阀座(10)的出口(12)处，所述阀口座(40)内设置有与所述阀腔(13)连通的连通通道(41)；所述阀口座(40)具有相对设置的连接端和支撑端，所述支撑端设置在所述阀腔(13)内，所述连接端伸出至所述阀座(10)外，所述连接端和所述支撑端之间设置有第一定位台阶(42)，所述第一定位台阶(42)用于与所述阀座(10)的出口(12)抵接定位。
  6. 根据权利要求5所述的电磁阀，其特征在于，所述第一定位台阶(42)包括相互连接的第一定位面(421)和第二定位面(422)，所述阀座(10)的开口处具有相互连接的定位内壁和定位侧壁，所述第一定位面(421)与所述定位内壁贴合定位，所述第二定位面(422)的至少部分与所述定位侧壁贴合定位，所述第二定位面(422)凸出于所述定位侧壁设置。
  7. 根据权利要求6所述的电磁阀，其特征在于，所述第二定位面(422)包括沿轴向连接设置的第一配合环面(4221)和第二配合环面(4222)，所述第一配合环面(4221)与所述定位侧壁过盈配合，所述第二配合环面(4222)与所述定位侧壁间隔设置，以使焊料进入至所述第二配合环面(4222)和所述定位侧壁之间的间隙内。
  8. 根据权利要求7所述的电磁阀，其特征在于，所述电磁阀还包括第一接管(51)，所述第一接管(51)与所述阀口座(40)的连接端连接，所述阀座(10)、所述阀口座(40)和所述第一接管(51)通过同一焊缝进行连接。
  9. 根据权利要求5所述的电磁阀，其特征在于，所述阀口座(40)上还设置有第二定位台阶(43)，所述第二定位台阶(43)设置在所述第一定位台阶(42)靠近所述连接端的一侧，所述电磁阀还包括：
    第一接管(51)，与所述第二定位台阶(43)进行定位配合。
  10. 根据权利要求9所述的电磁阀，其特征在于，所述第二定位台阶(43)还包括第三定位面(431)和第四定位面(432)，所述第三定位面(431)与所述第一接管(51)的端部进行贴合定位，所述第四定位面(432)的至少部分与所述第一接管(51)的内壁进行过盈配合。
  11. 根据权利要求1所述的电磁阀，其特征在于，电磁阀还包括：
    套管(80)，套设在所述阀座(10)上，所述套管(80)的壁厚为δ 1，0.45mm≤δ 1≤0.6mm。
  12. 根据权利要求11所述的电磁阀，其特征在于，所述电磁阀还包括：
    接口管，设置在所述进口和/或所述出口处。
  13. 根据权利要求12所述的电磁阀，其特征在于，所述接口管的外径为d，d≤8mm。
  14. 根据权利要求13所述的电磁阀，其特征在于，所述接口管由紫铜制成，所述接口管的壁厚为δ 2，1mm≤δ 2≤1.25mm。
  15. 根据权利要求13所述的电磁阀，其特征在于，所述接口管由钢材料制成，所述接口管的壁厚为δ 2，0.5mm≤δ 2≤1mm。
  16. 根据权利要求11所述的电磁阀，其特征在于，所述套管(80)的一端焊接在所述阀座(10)上。
  17. 根据权利要求11所述的电磁阀，其特征在于，所述套管(80)在所述阀座(10)上具有第一焊缝，所述第一焊缝的焊接深度为δ 3，δ 3/δ 1≥0.5。
  18. 根据权利要求11所述的电磁阀，其特征在于，所述电磁阀还包括：
    吸引子(60)，设置在所述套管(80)的另一端。
  19. 根据权利要求18所述的电磁阀，其特征在于，所述套管(80)的另一端焊接在所述吸引子(60)上。
  20. 根据权利要求19所述的电磁阀，其特征在于，所述套管(80)在所述吸引子(60)上具有第二焊缝，所述第二焊缝的焊接深度为δ 4，δ 4/δ 1≥0.5。
PCT/CN2022/070795 2021-01-08 2022-01-07 电磁阀 WO2022148444A1 (zh)

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JPH07133877A (ja) * 1993-11-12 1995-05-23 Nippon Funmatsu Gokin Kk 電磁弁の製造方法
JPH07248069A (ja) * 1994-03-11 1995-09-26 Aisin Seiki Co Ltd ソレノイドバルブ
CN101078442A (zh) * 2006-05-23 2007-11-28 浙江三花股份有限公司 直动式电磁阀
CN101498379A (zh) * 2008-02-03 2009-08-05 浙江三花股份有限公司 电磁阀
CN106641383A (zh) * 2015-11-04 2017-05-10 浙江盾安人工环境股份有限公司 一种电磁阀

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JPH07133877A (ja) * 1993-11-12 1995-05-23 Nippon Funmatsu Gokin Kk 電磁弁の製造方法
JPH07248069A (ja) * 1994-03-11 1995-09-26 Aisin Seiki Co Ltd ソレノイドバルブ
CN101078442A (zh) * 2006-05-23 2007-11-28 浙江三花股份有限公司 直动式电磁阀
CN101498379A (zh) * 2008-02-03 2009-08-05 浙江三花股份有限公司 电磁阀
CN106641383A (zh) * 2015-11-04 2017-05-10 浙江盾安人工环境股份有限公司 一种电磁阀

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