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WO2023103436A1 - 电磁阀 - Google Patents

电磁阀 Download PDF

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Publication number
WO2023103436A1
WO2023103436A1 PCT/CN2022/111748 CN2022111748W WO2023103436A1 WO 2023103436 A1 WO2023103436 A1 WO 2023103436A1 CN 2022111748 W CN2022111748 W CN 2022111748W WO 2023103436 A1 WO2023103436 A1 WO 2023103436A1
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WO
WIPO (PCT)
Prior art keywords
valve core
seat assembly
stepped surface
core seat
cavity
Prior art date
Application number
PCT/CN2022/111748
Other languages
English (en)
French (fr)
Inventor
金勇�
田鹏
张炼
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
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 EP22902870.9A priority Critical patent/EP4446633A1/en
Priority to KR1020247022419A priority patent/KR20240113850A/ko
Publication of WO2023103436A1 publication Critical patent/WO2023103436A1/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
    • 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
    • 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

Definitions

  • the present disclosure relates to a solenoid valve.
  • the lower end of the spool of the existing solenoid valve is directly pressed against the bottom surface of the piston housing cavity, and there is a problem that the spool impacts the piston for a long time and the spool is easy to fall off, thereby reducing the service life of the solenoid valve, and even causing parts such as the spool to fall off. system, causing a malfunction.
  • a solenoid valve including a piston, a valve core seat assembly and a valve core
  • the piston has a first accommodating chamber
  • the valve core seat assembly is fixed in the first accommodating chamber
  • the second accommodation chamber has a first stepped surface facing upward in the axial direction, The first stepped surface is configured to abut against the lower end of the valve core when the valve core is located at the lower end of the second accommodation chamber.
  • Fig. 1 is a sectional view of a solenoid valve according to an exemplary embodiment
  • Fig. 2 is the enlarged schematic view of the partial structure of the solenoid valve shown in Fig. 1;
  • Fig. 3 is an enlarged schematic diagram of a partial structure of a solenoid valve according to another exemplary embodiment
  • Fig. 4 is an enlarged schematic view showing a partial structure of a solenoid valve according to yet another exemplary embodiment.
  • Example embodiments will now be described more fully with reference to the accompanying drawings.
  • Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
  • the same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.
  • FIG. 1 it typically shows a cross-sectional view of the solenoid valve proposed in the present disclosure.
  • the solenoid valve proposed in the present disclosure is described as being applied to refrigeration equipment such as an air-conditioning system as an example.
  • refrigeration equipment such as an air-conditioning system
  • FIG. 1 it typically shows a cross-sectional view of the solenoid valve proposed in the present disclosure.
  • the solenoid valve proposed in the present disclosure is described as being applied to refrigeration equipment such as an air-conditioning system as an example.
  • the solenoid valve proposed in the present disclosure includes a valve body 100 , a piston 200 , a valve core seat assembly 300 and a valve core 400 .
  • FIG. 2 representatively shows an enlarged schematic diagram of a partial structure of a solenoid valve capable of embodying the principles of the present disclosure, specifically showing the assembly of a piston 200 , a valve core seat assembly 300 and a valve core 400 of the solenoid valve. structure.
  • the structure, connection mode and functional relationship of the main components of the solenoid valve proposed in the present disclosure will be described in detail below with reference to the above-mentioned drawings.
  • the piston 200 has a first accommodating chamber 210 .
  • the valve core seat assembly 300 is fixed in the first accommodating chamber 210 , and the valve core seat assembly 300 has a second accommodating chamber 330 opening at its lower end.
  • the valve core 400 is disposed in the second receiving chamber 330 , and the valve core 400 can move along the axis X in the second receiving chamber 330 .
  • the second accommodating chamber 330 has a first stepped surface S1, the first stepped surface S1 faces upward along the axial direction X, and the first stepped surface S1 can abut when the valve core 400 is located at the lower end of the second accommodating chamber 330 The lower end of the spool 400 .
  • the electromagnetic valve proposed in the present disclosure can use the first step surface S1 of the valve core seat assembly 300 to limit the position of the valve core 400, avoid the valve core 400 from directly abutting against the piston 200, and reduce the impact of the valve core 400 on the piston 200 , prolong the service life of the mechanism, and at the same time prevent the spool 400 from falling into the system and affect the normal operation of the system.
  • the valve core seat assembly 300 may include a seat body 310 and a bushing 320 arranged adjacently up and down. Specifically, the seat body 310 and the bushing 320 are jointly fixed in the first accommodation chamber 210, and the seat body 310 and the bushing 320 jointly define the second accommodation chamber 330 of the valve core seat assembly 300, and the upper end of the seat body 310 is is the upper end of the valve core seat assembly 300 , and the lower end of the bushing 320 is the lower end of the valve core seat assembly 300 .
  • the valve core seat assembly 300 is not limited to the structure including the seat body 310 and the bushing 320 , for example, it may only include the seat body 310 , and the invention is not limited thereto.
  • the opening of the lower end of the bushing 320 (ie, the lower end of the valve core seat assembly 300 ) is bent inwardly to form a bent portion 340 , and the bent portion 340 is along the axial direction X.
  • the upward facing upper surface defines the above-mentioned first stepped surface S1 of the valve core seat assembly 300 . Accordingly, in the present disclosure, the impact protection for the piston 200 and the position limitation for the valve core 400 can be realized through the bending portion 340 abutting against the lower end of the valve core 400 .
  • FIG. 3 representatively shows an enlarged schematic diagram of a partial structure of a solenoid valve proposed in the present disclosure in another exemplary embodiment, specifically showing a piston 200 of the solenoid valve, a valve core seat assembly 300 and Assembly structure of the spool 400.
  • a gasket 350 may be provided at a position adjacent to the lower end opening 360 of the second accommodation cavity 330 , and the upper surface of the gasket 350 facing upward along the axial direction X defines the valve core seat assembly 300 The above-mentioned first stepped surface S1. Accordingly, in the present disclosure, the gasket 350 can abut against the lower end of the spool 400 to achieve impact protection for the piston 200 and limit the position of the spool 400 .
  • an installation groove may be provided on the inner wall of the second housing chamber 330 adjacent to the lower end opening 360 , and the gasket 350 is partially locked. Connected or riveted to the installation groove, so as to realize the installation of the gasket 350 and the valve core seat assembly 300 .
  • the gasket 350 can also be installed in the second receiving chamber 330 by other methods, such as welding.
  • the gasket 350 is not limited to be arranged in combination with the bent portion 340, that is, in various possible implementations conforming to the design concept of the present disclosure, the bent portion 340 may not be provided, but only the gasket 350 may be provided. This is the limit.
  • the valve core seat assembly 300 only includes the seat body 310 but does not include the bushing 320 as an example.
  • the upper end of the seat body 310 is the upper end of the valve core seat assembly 300
  • the lower end of the seat body 310 is the lower end of the valve core seat assembly 300 .
  • the bent portion 340 is formed by bending the lower end of the seat body 310
  • the washer 350 is fixed on the seat body 310 and located in the second receiving chamber 330 .
  • valve core seat assembly 300 when the valve core seat assembly 300 also includes a bushing 320 , the opening at the lower end of the bushing 320 (that is, the lower end opening 360 of the valve core seat assembly 300 ) is bent inward to form a bent portion 340 , and the gasket 350 It can be fixed on the bushing 320 and located in the second receiving cavity 330 , and the washer 350 is disposed adjacently above the bending portion 340 along the axial direction X, but it is not limited thereto.
  • the first accommodating chamber 210 may have a second stepped surface S2 facing upward along the axial direction X
  • the valve core seat assembly 300 may have a The third downward facing step faces S3.
  • the second stepped surface S2 abuts against the third stepped surface S3, thereby limiting the position of the valve core seat assembly 300 in the first accommodation chamber 210 of the piston 200, and fixing and limiting the valve core seat assembly 300. position, avoiding the valve core seat assembly 300 from falling off, and optimizing the fixing effect of the valve core seat assembly 300.
  • the piston 200 has a central hole 220 , and the central hole 220 communicates with the lower end of the first accommodating chamber 210 .
  • the diameter of the central hole 220 is smaller than the inner diameter of the first receiving chamber 210 , so that the lower end of the first receiving chamber 210 forms a second stepped surface S2 .
  • the lower end opening 360 of the valve core seat assembly 300 is bent inwardly to form a bent portion 340 , and the lower surface of the bent portion 340 facing downward along the axis X defines a third stepped surface S3.
  • FIG. 4 representatively shows an enlarged schematic diagram of a partial structure of a solenoid valve proposed in the present disclosure in yet another exemplary embodiment, specifically showing a piston 200 of the solenoid valve, a valve core seat assembly 300 and Assembly structure of the spool 400.
  • the first receiving chamber The cavity 210 has a first cavity 2101 and a second cavity 2102 arranged up and down along the axial direction X, and the inner diameter of the second cavity 2102 is smaller than the inner diameter of the first cavity 2101, so that the first cavity 2101 and the second cavity
  • the junction of the two cavities 2102 forms a second stepped surface S2.
  • the valve core seat assembly 300 may have a first part 301 and a second part 302 arranged up and down along the axis X, and the outer diameter of the second part 302 is smaller than the outer diameter of the first part 301, so that The junction of the first portion 301 and the second portion 302 forms a third stepped surface S3.
  • the embodiment shown in FIG. 4 is to set the third stepped surface S3 In the middle of the valve core seat assembly 300, the so-called middle part refers to the part of the valve core seat assembly 300 except the upper end and the lower end, and is not limited to the middle position.
  • the valve core seat assembly 300 may have a third part 303 and a first part 301 arranged up and down along the axial direction X, and the outer surface of the third part 303 The diameter is smaller than the outer diameter of the first part 301, so that the connection between the first part 301 and the third part 303 forms a fourth stepped surface S4 facing upward along the axis X.
  • the position where the piston 200 is located at the periphery of the top opening of the first accommodating chamber 210 can be provided with an extension part 230, and the extension part 230 can be riveted on the fourth stepped surface S4, so that the valve core seat assembly 300 Positioning is performed to prevent the valve core seat assembly 300 from moving upward.
  • the first part 301 and the third part 303 shown in Fig. 2 and Fig. 3 are carried out on the basis of defining that the valve core seat assembly 300 has the first part 301 and the second part 302 in the embodiment shown in Fig. 4 Nomenclature is used to distinguish the various parts of the valve core seat assembly 300 in different embodiments in this description. In other words, in the embodiment shown in FIGS.
  • the valve core seat assembly 300 has a first portion 301 and a third portion 303 , and in the embodiment shown in FIG. 4 , the valve core seat assembly 300 has a first portion 301 , the second part 302 and the third part 303 are hereby explained.
  • the third part 303 of the valve core seat assembly 300 can extend out of the first accommodating cavity 210 .
  • the solenoid valve proposed in the present disclosure sets the first step surface S1 in the second accommodation cavity 330 of the valve core seat assembly 300, so that the valve core 400 is positioned at the lower end of the second accommodation cavity 330 by using the first step surface S1. When it abuts against the lower end of the spool 400.
  • the electromagnetic valve proposed in the present disclosure can use the first step surface S1 of the valve core seat assembly 300 to limit the position of the valve core 400, avoid the valve core 400 from directly abutting against the piston 200, and reduce the impact of the valve core 400 on the piston 200 , prolong the service life of the mechanism, and at the same time prevent the spool 400 from falling into the system and affect the normal operation of the system.

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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

本公开提出一种电磁阀，其包含活塞、阀芯座组件以及阀芯，活塞具有第一容纳腔，阀芯座组件固定于第一容纳腔中，并具有开口于下端的第二容纳腔，阀芯可沿轴向活动地设置于第二容纳腔中；其中，第二容纳腔具有沿轴向朝上的第一台阶面，第一台阶面被配置为在阀芯位于第二容纳腔下端时抵接阀芯下端。通过上述结构设计，本公开提出的电磁阀能够利用阀芯座组件的第一台阶面限制阀芯的位置，避免阀芯直接抵接活塞，减少阀芯对活塞的冲击，延长该机构使用寿命，同时能够避免阀芯掉落到系统中影响系统正常运行。

Description

电磁阀
相关申请的交叉引用
本公开要求基于2021年12月7日提交的申请号为202123059788.8的中国申请“电磁阀”的优先权，通过援引将其全部内容并入本文中。
技术领域
本公开涉及一种电磁阀。
背景技术
现有电磁阀的阀芯的下端直接压抵于活塞容纳腔的底面，存在阀芯长期冲击活塞和阀芯容易脱落的问题，从而导致电磁阀使用寿命减少，甚至使阀芯等零件掉落到系统中，引起故障。
发明内容
根据本公开的一个方面，提供一种电磁阀，包含活塞、阀芯座组件以及阀芯，所述活塞具有第一容纳腔，所述阀芯座组件固定于所述第一容纳腔中，并具有开口于下端的第二容纳腔，所述阀芯可沿轴向活动地设置于所述第二容纳腔中；其中，所述第二容纳腔具有沿轴向朝上的第一台阶面，所述第一台阶面被配置为在所述阀芯位于所述第二容纳腔下端时抵接所述阀芯下端。
附图说明
图1是根据一示例性实施方式示出的一种电磁阀的剖视图；
图2是图1示出的电磁阀的部分结构的放大示意图；
图3是根据另一示例性实施方式示出的电磁阀的部分结构的放大示意图；
图4是根据又一示例性实施方式示出的电磁阀的部分结构的放大示意图。
具体实施例
现在将参考附图更全面地描述示例实施例。然而，示例实施例能够以多种形式实施，且不应被理解为限于在此阐述的实施例；相反，提供这些实施例使得本公开将全面和完整， 并将示例实施例的构思全面地传达给本领域的技术人员。图中相同的附图标记表示相同或类似的结构，因而将省略它们的详细描述。
参阅图1，其代表性地示出了本公开提出的电磁阀的剖视图。在该示例性实施方式中，本公开提出的电磁阀是以应用于例如空调系统的制冷设备为例进行说明的。本领域技术人员容易理解的是，为将本公开的相关设计应用于其他类型的设备或系统中，而对下述的具体实施方式做出多种改型、添加、替代、删除或其他变化，这些变化仍在本公开提出的电磁阀的原理的范围内。
如图1所示，在本公开的一实施方式中，本公开提出的电磁阀包含阀体100、活塞200、阀芯座组件300以及阀芯400。配合参阅图2，图2中代表性地示出了能够体现本公开原理的电磁阀的部分结构的放大示意图，具体示出了电磁阀的活塞200、阀芯座组件300以及阀芯400的装配结构。以下将结合上述附图，对本公开提出的电磁阀的各主要组成部分的结构、连接方式和功能关系进行详细说明。
如图1和图2所示，在本公开的一实施方式中，该活塞200具有第一容纳腔210。该阀芯座组件300固定于该第一容纳腔210中，阀芯座组件300具有开口于自身下端的第二容纳腔330。该阀芯400设置于该第二容纳腔330中，且阀芯400能够在第二容纳腔330中沿轴向X活动。在此基础上，第二容纳腔330具有第一台阶面S1，该第一台阶面S1沿轴向X朝上，第一台阶面S1能够在阀芯400位于第二容纳腔330下端时抵接阀芯400下端。通过上述结构设计，本公开提出的电磁阀能够利用阀芯座组件300的第一台阶面S1限制阀芯400的位置，避免阀芯400直接抵接活塞200，减少阀芯400对活塞200的冲击，延长该机构使用寿命，同时能够避免阀芯400掉落到系统中影响系统正常运行。
需说明的是，如图2所示，在本公开的一实施方式中，阀芯座组件300可以包含上下相邻布置的座体310及衬套320。具体而言，该座体310和该衬套320共同固定于第一容纳腔210中，且座体310和衬套320共同定义阀芯座组件300的第二容纳腔330，座体310的上端即为阀芯座组件300的上端，衬套320的下端即为阀芯座组件300的下端。在一些实施方式中，阀芯座组件300亦不限于包含座体310及衬套320的结构，例如亦可仅包含座体310，并不以此为限。
如图2所示，在本公开的一实施方式中，衬套320的下端(即阀芯座组件300的下端)开口向内弯折形成弯折部340，该弯折部340沿轴向X朝上的上表面定义阀芯座组件300的上述第一台阶面S1。据此，本公开能够通过弯折部340抵接阀芯400下端，实现对活塞200的冲击保护和对阀芯400的限位。
参阅图3，图3中代表性地示出了本公开提出的电磁阀在另一示例性实施方式中的部分结构的放大示意图，具体示出了电磁阀的活塞200、阀芯座组件300以及阀芯400的装配结构。
如图3所示，在本公开的一实施方式中，第二容纳腔330邻近下端开口360的位置可以设置有垫圈350，该垫圈350沿轴向X朝上的上表面定义阀芯座组件300的上述第一台阶面S1。据此，本公开能够通过垫圈350抵接阀芯400下端，实现对活塞200的冲击保护和对阀芯400的限位。
如图3所示，基于第二容纳腔330设置有垫圈350的结构设计，在本公开的一实施方式中，第二容纳腔330邻近下端开口360的内壁可以设置有安装槽，垫圈350部分卡接或铆接于安装槽，从而实现垫圈350与阀芯座组件300的安装。在一些实施方式中，垫圈350亦可采用其他方式安装于第二容纳腔330中，例如焊接等。另外，垫圈350亦不限于与弯折部340组合布置，即，在符合本公开的设计构思的各种可能的实施方式中，亦可不设置弯折部340，而仅设置垫圈350，均不以此为限。
如图3所示，基于第二容纳腔330设置有垫圈350的结构设计，在本公开的一实施方式中，是以阀芯座组件300仅包含座体310而不包含衬套320为例进行说明，在此基础上，座体310的上端即为阀芯座组件300的上端，座体310的下端即为阀芯座组件300的下端。此时，弯折部340是由座体310的下端弯折而成，且垫圈350固定于座体310并位于第二容纳腔330中。在一些实施方式中，当阀芯座组件300还包含衬套320时，衬套320下端的开口(即阀芯座组件300的下端开口360)向内弯折形成弯折部340，则垫圈350是可以固定于衬套320并位于第二容纳腔330中，垫圈350沿轴向X邻设于弯折部340上方，并不以此为限。
如图2和图3所示，在本申请的一实施方式中，第一容纳腔210可以具有沿轴向X朝上的第二台阶面S2，且阀芯座组件300可以具有沿轴向X朝下的第三台阶面S3。在此基础上，第二台阶面S2与第三台阶面S3抵接配合，从而限制阀芯座组件300在活塞200的第一容纳腔210中的位置，对阀芯座组件300进行固定和限位，避免阀芯座组件300脱落，优化阀芯座组件300的固定效果。
如图2和图3所示，基于第一容纳腔210和阀芯座组件300具有抵接配合的第二台阶面S2和第三台阶面S3的结构设计，在本申请的一实施方式中，活塞200具有中心孔220，该中心孔220连通于第一容纳腔210的下端。在此基础上，中心孔220的孔径小于第一容纳腔210的内径，以使第一容纳腔210下端形成第二台阶面S2。在此基础上，阀芯座组 件300的下端开口360向内弯折形成弯折部340，弯折部340沿轴向X朝下的下表面定义第三台阶面S3。
参阅图4，图4中代表性地示出了本公开提出的电磁阀在又一示例性实施方式中的部分结构的放大示意图，具体示出了电磁阀的活塞200、阀芯座组件300以及阀芯400的装配结构。
如图4所示，基于第一容纳腔210和阀芯座组件300具有抵接配合的第二台阶面S2和第三台阶面S3的结构设计，在本公开的一实施方式中，第一容纳腔210具有沿轴向X上下布置的第一腔体2101及第二腔体2102，且该第二腔体2102的内径小于该第一腔体2101的内径，以使第一腔体2101与第二腔体2102的连接处形成第二台阶面S2。在此基础上，阀芯座组件300可以具有沿轴向X上下布置的第一部301及第二部302，且该第二部302的外径小于该第一部301的外径，以使第一部301与第二部302的连接处形成第三台阶面S3。据此，区别于图2和图3示出的实施方式中采用的将第三台阶面S3设置于阀芯座组件300下端的结构设计，图4示出实施方式是将第三台阶面S3设置于阀芯座组件300的中部，所谓中部即阀芯座组件300除上端和下端以外的部分，并非仅限于中间位置。
如图2和图3所示，在本公开的一实施方式中，阀芯座组件300可以具有沿轴向X上下布置的第三部303及第一部301，且该第三部303的外径小于第一部301的外径，以使第一部301与第三部303的连接处形成沿轴向X朝上的第四台阶面S4。在此基础上，活塞200位于第一容纳腔210的顶部开口周缘的位置可以设置有延伸部230，该延伸部230能够被铆压于该第四台阶面S4，以此对阀芯座组件300进行限位，避免阀芯座组件300向上窜动。另外，图2和图3示出的第一部301和第三部303，是在图4示出的实施方式中定义阀芯座组件300具有第一部301和第二部302的基础上进行命名，以便在本说明书中区分阀芯座组件300在不同实施方式中具有的各部分。换言之，图2和图3示出的实施方式中，阀芯座组件300及具有第一部301和第三部303，图4示出的实施方式中，阀芯座组件300具有第一部301、第二部302和第三部303，特此说明。
如图2和图3所示，基于阀芯座组件300具有第一部301和第三部303的结构设计，在本公开的一实施方式中，阀芯座组件300的第三部303可以伸出于第一容纳腔210。
综上所述，本公开提出的电磁阀，通过在阀芯座组件300的第二容纳腔330设置第一台阶面S1，从而利用第一台阶面S1在阀芯400位于第二容纳腔330下端时抵接阀芯400下端。通过上述结构设计，本公开提出的电磁阀能够利用阀芯座组件300的第一台阶面S1限制阀芯400的位置，避免阀芯400直接抵接活塞200，减少阀芯400对活塞200的冲 击，延长该机构使用寿命，同时能够避免阀芯400掉落到系统中影响系统正常运行。
虽然已参照几个典型实施例描述了本公开，但应当理解，所用的术语是说明和示例性、而非限制性的术语。由于本公开能够以多种形式具体实施而不脱离公开的精神或实质，所以应当理解，上述实施例不限于任何前述的细节，而应在随附权利要求所限定的精神和范围内广泛地解释，因此落入权利要求或其等效范围内的全部变化和改型都应为随附权利要求所涵盖。

Claims (10)

  1. 一种电磁阀，包含活塞、阀芯座组件以及阀芯，所述活塞具有第一容纳腔，所述阀芯座组件固定于所述第一容纳腔中，并具有开口于下端的第二容纳腔，所述阀芯可沿轴向活动地设置于所述第二容纳腔中；其中：
    所述第二容纳腔具有沿轴向朝上的第一台阶面，所述第一台阶面被配置为在所述阀芯位于所述第二容纳腔下端时抵接所述阀芯下端。
  2. 根据权利要求1所述的电磁阀，其中，所述阀芯座组件的下端开口向内弯折形成弯折部，所述弯折部沿轴向朝上的上表面定义所述第一台阶面。
  3. 根据权利要求1所述的电磁阀，其中，所述第二容纳腔邻近下端开口的位置设置有垫圈，所述垫圈沿轴向朝上的上表面定义所述第一台阶面。
  4. 根据权利要求3所述的电磁阀，其中，所述阀芯座组件的下端开口向内弯折形成弯折部，所述垫圈沿轴向邻设于所述弯折部上方。
  5. 根据权利要求1～4任一项所述的电磁阀，其中，所述第一容纳腔具有沿轴向朝上的第二台阶面，所述阀芯座组件具有沿轴向朝下的第三台阶面，所述第二台阶面与所述第三台阶面抵接配合。
  6. 根据权利要求5所述的电磁阀，其中，所述活塞具有中心孔，所述中心孔连通于所述第一容纳腔的下端；其中，所述中心孔的孔径小于所述第一容纳腔的内径，以使所述第一容纳腔下端形成所述第二台阶面；其中，所述阀芯座组件的下端开口向内弯折形成弯折部，所述弯折部沿轴向朝下的下表面定义所述第三台阶面。
  7. 根据权利要求5所述的电磁阀，其中，所述第一容纳腔具有沿轴向上下布置的第一腔体及第二腔体，所述第二腔体的内径小于所述第一腔体的内径，以使所述第一腔体与所述第二腔体的连接处形成所述第二台阶面；其中，所述阀芯座组件具有沿轴向上下布置的第一部及第二部，所述第二部的外径小于所述第一部的外径，以使所述第一部与所述第二 部的连接处形成所述第三台阶面。
  8. 根据权利要求1～4任一项所述的电磁阀，其中，其中，所述阀芯座组件具有沿轴向上下布置的第三部及第一部，所述第三部的外径小于所述第一部的外径，以使所述第一部与所述第三部的连接处形成沿轴向朝上的第四台阶面；其中，所述活塞位于所述第一容纳腔的顶部开口周缘的位置设置有延伸部，所述延伸部被配置为铆压于所述第四台阶面。
  9. 根据权利要求8所述的电磁阀，其中，所述阀芯座组件的第三部伸出于所述第一容纳腔。
  10. 根据权利要求1～4任一项所述的电磁阀，其中，所述阀芯座组件包含上下相邻布置的座体及衬套，所述座体和所述衬套共同固定于所述第一容纳腔中，并共同定义所述第二容纳腔，所述座体的上端为所述阀芯座组件的上端，所述衬套的下端为所述阀芯座组件的下端。
PCT/CN2022/111748 2021-12-07 2022-08-11 电磁阀 WO2023103436A1 (zh)

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