WO2023280262A1 - 电磁阀及具有其的空调系统 - Google Patents

电磁阀及具有其的空调系统 Download PDF

Info

Publication number
WO2023280262A1
WO2023280262A1 PCT/CN2022/104311 CN2022104311W WO2023280262A1 WO 2023280262 A1 WO2023280262 A1 WO 2023280262A1 CN 2022104311 W CN2022104311 W CN 2022104311W WO 2023280262 A1 WO2023280262 A1 WO 2023280262A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
sealing
diameter section
valve seat
bonding surface
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2022/104311
Other languages
English (en)
French (fr)
Inventor
田鹏
张炼
马小红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Dunan Artificial Environment Co Ltd
Original Assignee
Zhejiang Dunan Artificial Environment Co Ltd
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 Zhejiang Dunan Artificial Environment Co Ltd filed Critical Zhejiang Dunan Artificial Environment Co Ltd
Priority to EP22837007.8A priority Critical patent/EP4368861B1/en
Publication of WO2023280262A1 publication Critical patent/WO2023280262A1/zh
Priority to US18/401,498 priority patent/US20240229958A9/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre 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
    • 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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston

Definitions

  • the present application relates to the technical field of refrigeration, in particular to a solenoid valve and an air-conditioning system having the same.
  • Solenoid valve is an industrial equipment controlled by electromagnetism, and it is an automatic basic component used to control fluid. Solenoid valves belong to actuators, and their types are not limited to hydraulic types, pneumatic types, and the like. Solenoid valves are used to adjust the direction, flow, speed and other parameters of media in industrial control systems. Solenoid valves can cooperate with different circuits to achieve the desired control, and can ensure the accuracy and flexibility of the control.
  • a solenoid valve with strong sealing performance is provided.
  • a solenoid valve comprising a valve cover and a valve seat, the valve seat is provided with an installation groove, and the valve cover part is installed in the installation groove;
  • the valve cover includes a large-diameter section and a small-diameter section connected to each other, The small-diameter section extends into the installation groove and fits with the groove wall of the installation groove, and the large-diameter section abuts on the valve seat; the connection between the large-diameter section and the valve seat
  • the first sealing surface is formed by abutting between them, the small-diameter section is attached to the groove wall of the installation groove to form a second sealing surface, the valve cover and the valve seat are hard-sealed at the first sealing surface, and the The valve cover and the valve seat are connected in a soft seal at the second sealing surface.
  • the large-diameter section has a first fitting surface
  • the valve seat has a second fitting surface where it abuts against the large-diameter section, and the first fitting surface and the The second bonding surfaces are bonded to each other to form a first sealing surface, and the first bonding surface and the second bonding surface are bonded face to face to form a hard-tight connection.
  • the first fitting surface is provided with a step protruding toward the second fitting surface
  • the second fitting surface is provided with a depression matching the step portion
  • the recessed portion is recessed toward a direction away from the first bonding surface, and when the first bonding surface is bonded to the second bonding surface, the gap between the stepped portion and the recessed portion work close with.
  • the first fitting surface is provided with an annular protrusion protruding toward the second fitting surface, and when the first fitting surface is fitted to the second fitting surface , the annular protrusion can be compressed and embedded in the second fitting surface.
  • the material hardness of the valve cover is greater than that of the valve seat.
  • the cross-sectional shape of the annular protrusion is triangular or arc-shaped.
  • the outer wall of the small-diameter section has a third fitting surface
  • the inner wall of the valve seat has a fourth fitting surface
  • the third fitting surface and the fourth fitting surface are attached to each other.
  • the second sealing surface is formed;
  • the third bonding surface is provided with a sealing groove, and a sealing ring is installed in the sealing groove, and the sealing ring is located in the sealing groove and squeezed on the fourth bonding surface. noodle.
  • the solenoid valve further includes a pilot valve component fixedly installed in the valve cover, the pilot valve component includes a valve sleeve, and the valve sleeve has a valve cavity inside, so There is a valve port in the valve seat that communicates with the valve cavity; a piston unit is also arranged inside the valve sleeve, and the piston unit can move in the valve cavity along the axis of the valve sleeve to open/close the valve port.
  • the piston unit includes a moving iron core, a fixed iron core and an elastic member, the two ends of the elastic member are respectively connected to the moving iron core and the fixed iron core, and the moving iron core can Under the action of the elastic force and the electromagnetic force of the elastic member, it moves toward/away from the fixed iron core to open/close the valve port.
  • An air conditioning system includes a solenoid valve.
  • Fig. 1 is a schematic structural diagram of a solenoid valve according to one or more embodiments.
  • FIG. 2 is a schematic structural view of an embodiment of a partial enlargement of A in FIG. 1 .
  • FIG. 3 is a schematic structural diagram of another embodiment showing a partial enlargement of A in FIG. 1 .
  • FIG. 4 is a schematic diagram of a solenoid valve and an air conditioning system including the solenoid valve, according to one or more embodiments.
  • a component when a component is said to be “mounted on” another component, it may be directly on the other component or there may be an intervening component.
  • a component When a component is said to be “set on” another component, it may be set directly on the other component or there may be an intervening component at the same time.
  • a component When a component is said to be “fixed” to another component, it may be directly fixed to the other component or there may be an intervening component at the same time.
  • the present application provides a solenoid valve 100 .
  • the solenoid valve 100 is installed in the air-conditioning system, and is used to control the connection or isolation of the pipeline, so as to realize the two-way circulation of the refrigerant.
  • the present application provides a solenoid valve 100, which includes a valve cover 10 and a valve seat.
  • An installation groove 21 is opened on the valve seat, and the valve cover 10 Partly installed in the installation groove 21;
  • the valve cover 10 includes a large diameter section 11 and a small diameter section 12 connected to each other, the small diameter section 12 extends into the installation groove 21, and fits with the groove wall of the installation groove 21, the large diameter section 11 abut on the valve seat; the abutment between the large-diameter section 11 and the valve seat forms the first sealing surface 30, and the small-diameter section 12 fits with the groove wall of the installation groove 21 to form the second sealing surface 40.
  • the valve cover 10 and the valve seat The first sealing surface 30 is hard-tightly connected, and the valve cover 10 and the valve seat are soft-tightly connected at the second sealing surface 40 .
  • "hard seal” may mean that both sealing surfaces forming a sealed connection are made of metallic materials or other hard materials
  • "soft seal” may mean that one of the sealing surfaces forming a sealed connection is made of metal materials or other hard materials. quality material, and the other sealing surface is made of elastic non-metallic material.
  • valve cover 10 and the valve seat are hard-sealed at the first sealing surface 30 and soft-sealed at the second sealing surface 40, so that the installation gap between the valve cover 10 and the valve seat is hard-sealed and sealed.
  • the double seal of the soft seal greatly increases the sealing effect and reduces the leakage rate, so that the solenoid valve 100 operates stably and reliably.
  • the solenoid valve 100 includes a pilot valve member 50 , a valve cover 10 and a valve seat.
  • the bonnet 10 is provided with a mounting hole 13
  • the pilot valve part 50 is partially installed in the mounting hole 13 and fixedly connected with the bonnet 10
  • the valve seat is provided with a mounting groove 21, and the pilot valve part 50 after the fixed connection is together with the bonnet 10. Installed in the installation groove 21, the installation connection between the pilot valve component 50, the valve cover 10 and the valve seat is realized in this way.
  • the pilot valve component 50 includes a valve sleeve 51 .
  • the valve sleeve 51 extends into the installation hole 13 and is welded on the valve cover 10 .
  • the valve sleeve 51 has a valve cavity 511, and the valve seat has a valve port 22 communicating with the valve cavity 511; the valve cavity 511 is provided with a piston unit 52, and the piston unit 52 can move along the axis direction of the valve sleeve 51 in the valve cavity 511. Back and forth movement to open/close valve port 22.
  • the piston unit 52 includes a moving iron core 521 , a fixed iron core 522 and an elastic member 523 .
  • the fixed iron core 522 is fixedly arranged at the end of the valve sleeve 51 away from the valve port 22, the moving iron core 521 is located at the end of the valve sleeve 51 close to the valve port 22, and the elastic member 523 is connected between the moving iron core 521 and the fixed iron core 522 , the moving iron core 521 can move toward/away from the fixed iron core 522 under the drive of the elastic member 523 .
  • the elastic member 523 is a spring.
  • the elastic member 523 can also choose other types of elastic structures, which are not limited here.
  • a piston 524 is connected to an end of the moving iron core 521 close to the valve port 22 .
  • the piston 524 can abut against the valve port 22 to seal the valve port 22 or break away from the valve port 22 to open the valve port 22, thus achieving The communication or isolation of the solenoid valve 100 pipeline.
  • the working principle of the electromagnetic valve 100 is: when the electromagnetic coil installed outside the valve sleeve 51 is energized, the moving iron core 521 overcomes the elastic force of the elastic member 523 and moves toward the direction close to the fixed iron core 522, and the piston 524 is moving Driven by the iron core 521, the valve port 22 is separated, the valve port 22 is opened, and the solenoid valve 100 realizes the communication of the inlet and outlet pipelines; Driven to move away from the fixed iron core 522, the piston 524 is driven by the moving iron core 521 to abut against the valve port 22, the valve port 22 is sealed by the piston 524, and the solenoid valve 100 realizes the isolation of the inlet and outlet pipelines.
  • the valve cover 10 includes a large-diameter section 11 and a small-diameter section 12 connected to each other.
  • the diameter of the large-diameter section 11 is larger than the diameter of the small-diameter section 12 .
  • the large-diameter section 11 is located on the end of the valve cover 10 close to the pilot valve component 50
  • the small-diameter section 12 is located on the end of the valve cover 10 close to the valve seat, and the large-diameter section 11 and the small-diameter section 12 are integrally formed to form the valve cover 10 .
  • the small-diameter section 12 extends into the installation groove 21 and fits against the groove wall of the installation groove 21 , and the large-diameter section 11 abuts on the valve seat.
  • the valve cover 10 can abut against the valve seat to form a limit when installed on the valve seat, so as to prevent the valve cover 10 from excessively protruding into the valve seat and causing structural breakage.
  • the abutment between the large-diameter section 11 and the valve seat forms the first sealing surface 30, and the small-diameter section 12 adheres to the groove wall of the installation groove 21 to form the second sealing surface 40.
  • the valve cover 10 and the valve seat are in the first sealing surface.
  • the hard sealing connection is realized at the second sealing surface 30
  • the soft sealing connection is realized at the second sealing surface 40 of the valve cover 10 and the valve seat.
  • the large-diameter section 11 has a first fitting surface 31
  • the valve seat has a second fitting surface 32 where it abuts against the large-diameter section 11 .
  • the first bonding surface 31 and the second bonding surface 32 are bonded to each other to form the first sealing surface 30, and the face-to-face bonding between the first bonding surface 31 and the second bonding surface 32 forms a hard seal connection, so that On the basis of improving the sealing performance, the sealing strength is also improved.
  • the first fitting surface 31 is provided with a stepped portion 311 protruding toward the second fitting surface 32
  • the second fitting surface 32 is provided with a The recessed portion 321, and the recessed portion 321 is recessed toward the direction away from the first bonding surface 31, when the first bonding surface 31 is bonded to the second bonding surface 32, the step portion 311 and the recessed portion 321 are tightly fitted , so that another form of hard sealing is realized at the first sealing surface 30 .
  • the first sealing surface 30 with the addition of the step portion 311 adds another barrier to the medium infiltrating from the outside; that is, Assuming that the first sealing surface 30 without the step portion 311 is in the horizontal direction, then the first sealing surface 30 after the step portion 311 is installed in the horizontal direction has an additional sealing surface in the vertical direction; if there is still A small amount of medium penetrates from the first sealing surface 30 , and when the medium penetrates from the first horizontal sealing surface 30 to the vertical first sealing surface 30 at the stepped portion 311 , it will be blocked and cannot continue to penetrate. Therefore, the opening of the stepped portion 311 further enhances the sealing performance of the hard seal and reduces the leakage rate.
  • the stepped portion 311 is not limited to be disposed on the first bonding surface 31; in other embodiments, the stepped portion 311 may also be disposed on the second bonding surface 32, at this time, the corresponding concave portion 321
  • the arrangement on the first bonding surface 31 is not limited here as long as the sealing performance can be improved.
  • the number of the step portions 311 can be adjusted accordingly according to the structure or different requirements, and can be set to one, two, three or even more, which is not limited here.
  • the first fitting surface 31 is provided with an annular protrusion 312 protruding toward the second fitting surface 32 .
  • the annular protrusion 312 can be compressed and embedded in the second fitting surface 32 . In this way, the sealing performance of the valve cover 10 and the valve seat at the first sealing surface 30 is further enhanced.
  • the root width of the annular protrusion 312 is larger than the top width, and the width gradually increases from the top to the root.
  • the surface-to-surface seal at the first sealing surface 30 becomes a line-to-surface seal, and the top with a smaller width increases the contact stress by reducing the contact area, thereby improving the reliability of the hard seal.
  • the annular protrusion 312 is not limited to be arranged on the first fitting surface 31; in other embodiments, the annular protrusion 312 can also be arranged on the second fitting surface 32, as long as the sealing performance can be achieved The improvement is enough, and there is no limitation here.
  • annular protrusion 312 is arranged on the first fitting surface 31 or the second fitting surface 32, it must be ensured that the material hardness of the valve cover 10 or the valve seat provided with the annular protrusion 312 is greater than that without the annular protrusion 312.
  • the valve seat or the valve cover 10 of the protrusion 312 so that the annular protrusion 312 can better generate elastic-plastic deformation, and be easily embedded in the valve seat or the valve cover 10 .
  • valve cover 10 is made of harder stainless steel, and the valve seat is made of aluminum alloy; of course, in other embodiments, the valve cover 10 and the valve seat can also be adaptively selected from copper, etc. Other metal materials are not limited here.
  • the cross-sectional shape of the annular protrusion 312 is a triangle, an arc or a trapezoid. As long as it can be ensured that the root width of the annular protrusion 312 is greater than the top width, so as to facilitate the embedding of the annular protrusion 312 into the valve seat or the valve cover 10 , there is no limitation here.
  • the number of annular protrusions 312 may be one or several.
  • the number of annular protrusions 312 is two or three.
  • the more the number of annular protrusions 312, the larger the space it occupies, and the thread preload required to ensure the amount of elastic-plastic deformation The force is also greater, which makes the overall structure bloated. Taking the above factors into consideration, it is preferable that the number of annular protrusions 312 is two or three, which can take into account multiple factors such as sealing effect, structure size and processing accuracy.
  • the outer wall of the small-diameter section 12 has a third fitting surface 41
  • the inner wall of the valve seat has a fourth fitting surface 42
  • the third fitting surface 41 and the fourth fitting surface 42 fit each other to form a second sealing surface 40
  • a sealing groove 411 is defined on the third bonding surface 41
  • a sealing ring 43 is installed in the sealing groove 411 .
  • the sealing ring 43 is located in the sealing groove 411 and pressed against the fourth bonding surface 42 .
  • the second soft seal is continued to be provided at the second sealing surface 40 to serve as a backup and protective seal.
  • the second soft seal can still keep the seal between the valve seat and the valve cover 10 .
  • the sealing ring 43 fails in an environment of extreme low temperature or high temperature, the valve seat and the valve cover 10 can still be sealed by the first hard seal at this time, thereby improving the sealing performance between the valve cover 10 and the valve seat. Seal reliability between.
  • the sealing ring 43 is an O-ring 43 and is not limited to the O-ring 43 .
  • other sealing structures can also be used, as long as the sealing can be achieved.
  • the sealing groove 411 is not limited to be disposed on the third bonding surface 41 .
  • the sealing groove 411 may also be provided on the fourth bonding surface 42, or both the third bonding surface 41 and the fourth bonding surface 42 are provided with a sealing groove 411, as long as the sealing performance can be improved. Yes, there is no limitation here.
  • the present application also provides an air conditioning system (200), including the above electromagnetic valve 100.
  • a solenoid valve 100 provided by the present application realizes a hard seal at the first sealing surface 30 and a soft seal at the second sealing surface 40 by making the valve cover 10 and the valve seat realize a soft seal, so that the valve cover 10 and the valve seat
  • the double seal of hard seal and soft seal is realized at the installation gap, which greatly increases the sealing effect, reduces the leakage rate, and makes the solenoid valve 100 operate stably and reliably.

Landscapes

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

Abstract

一种电磁阀(100)及具有其的空调系统(200)。该电磁阀(100)包括阀盖(10)和阀座(20)，阀盖(10)包括大径段(11)和小径段(12)，小径段(12)伸入安装槽(21)与安装槽(21)的槽壁相贴合，大径段(11)抵接于阀座(20)上；大径段(11)与阀座(20)之间抵接形成第一密封面(30)，小径段(12)与安装槽(21)的槽壁贴合形成第二密封面(40)，阀盖(10)和阀座(20)在第一密封面(30)处硬密封连接，阀盖(10)和阀座(20)在第二密封面(40)处软密封连接。

Description

电磁阀及具有其的空调系统
相关申请
本申请要求2021年7月7日申请的，申请号为202121564556.5，发明名称为“电磁阀及具有其的空调系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及制冷技术领域，特别是涉及一种电磁阀及具有其的空调系统。
背景技术
电磁阀是由电磁控制的工业设备，是用来控制流体的自动化基础元件。电磁阀属于执行器，并且其类型不限于液压型、气动型等。电磁阀用于在工业控制系统中调整介质的方向、流量、速度和其他的参数。电磁阀可以配合不同的电路来实现预期的控制，并且能够保证控制的精度和灵活性。
现有的电磁阀，通常由于阀盖和阀座之间密封不到位而产生泄漏，从而影响电磁阀的正常运行。
发明内容
根据本申请的各种实施例，提供了一种密封性能强的电磁阀。
本申请提供如下技术方案：
一种电磁阀，包括阀盖和阀座，所述阀座上开设有安装槽，所述阀盖部分安装于所述安装槽内；所述阀盖包括互相连接的大径段和小径段，所述小径段伸入所述安装槽中，并与所述安装槽的槽壁相贴合，所述大径段抵接于 所述阀座上；所述大径段与所述阀座之间抵接形成第一密封面，所述小径段与所述安装槽的槽壁贴合形成第二密封面，所述阀盖和所述阀座在第一密封面处硬密封连接，所述阀盖和所述阀座在第二密封面处软密封连接。
在其中一个实施例中，所述大径段上具有第一贴合面，所述阀座与所述大径段抵接处具有第二贴合面，所述第一贴合面和所述第二贴合面互相贴合形成第一密封面，且所述第一贴合面和所述第二贴合面之间面面贴合形成硬密封连接。
在其中一个实施例中，所述第一贴合面上设有朝向所述第二贴合面凸出的台阶部，所述第二贴合面上设有与所述台阶部相配合的凹陷部，且所述凹陷部朝向远离所述第一贴合面的方向凹陷，所述第一贴合面贴合于所述第二贴合面时，所述台阶部和所述凹陷部之间紧密配合。
在其中一个实施例中，所述第一贴合面上设有朝向所述第二贴合面凸出的环形凸起，所述第一贴合面贴合于所述第二贴合面时，所述环形凸起能够被压紧并嵌入于所述第二贴合面中。
在其中一个实施例中，所述阀盖的材料硬度大于所述阀座的材料硬度。
在其中一个实施例中，所述环形凸起的截面形状为三角形或圆弧形。
在其中一个实施例中，所述小径段的外壁具有第三贴合面，所述阀座的内壁具有第四贴合面，所述第三贴合面和所述第四贴合面互相贴合形成第二密封面；所述第三贴合面上开设有密封槽，所述密封槽内安装有密封圈，所述密封圈位于所述密封槽内并挤压于所述第四贴合面。
在其中一个实施例中，所述电磁阀还包括导阀部件，所述导阀部件固定安装于所述阀盖中，所述导阀部件包括阀套，所述阀套内具有阀腔，所述阀 座内具有与所述阀腔连通的阀口；所述阀套内部还设置有活塞单元，所述活塞单元能够在所述阀腔内沿所述阀套轴线方向运动，以启/闭所述阀口。
在其中一个实施例中，所述活塞单元包括动铁芯、定铁芯和弹性件，所述弹性件的两端分别连接所述动铁芯和所述定铁芯，所述动铁芯能够在所述弹性件的弹性力和电磁力的作用下朝向靠近/远离所述定铁芯的方向运动，以启/闭所述阀口。
本申请还提供如下技术方案：
一种空调系统，包括电磁阀。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更好地描述和说明这里公开的那些发明的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的任何一者的范围的限制。
图1为根据一个或多个实施例的电磁阀的结构示意图。
图2为图1中A处局部放大一实施例的结构示意图。
图3为图1中A处局部放大另一实施例的结构示意图。
图4为根据一个或多个实施例的电磁阀和包括电磁阀的空调系统的示意图。
图中各符号表示含义如下：
100、电磁阀；10、阀盖；11、大径段；12、小径段；13、安装孔；20、 阀座；21、安装槽；22、阀口；30、第一密封面；31、第一贴合面；311、台阶部；312、环形凸起；32、第二贴合面；321、凹陷部；40、第二密封面；41、第三贴合面；411、密封槽；42、第四贴合面；43、密封圈；50、导阀部件；51、阀套；511、阀腔；52、活塞单元；521、动铁芯；522、定铁芯；523、弹性件；524、活塞；200、空调系统。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明的是，当组件被称为“装设于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“设置于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。当一个组件被认为是“固定于”另一个组件，它可以是直接固定在另一个组件上或者可能同时存在居中组件。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
请参考图1至图3，本申请提供一种电磁阀100。该电磁阀100安装于空调系统中，用于控制管路的连通或隔断，从而实现制冷剂的双向流通。
现有的电磁阀中，通常由于阀盖和阀座之间密封不到位而产生泄漏，从 而影响电磁阀的正常运行。
为解决现有的电磁阀中所存在的密封不到位而产生泄漏的问题，本申请提供了一种电磁阀100，包括阀盖10和阀座，阀座上开设有安装槽21，阀盖10部分安装于安装槽21内；阀盖10包括互相连接的大径段11和小径段12，小径段12伸入安装槽21中，并与安装槽21的槽壁相贴合，大径段11抵接于阀座上；大径段11与阀座之间抵接形成第一密封面30，小径段12与安装槽21的槽壁贴合形成第二密封面40，阀盖10和阀座在第一密封面30处硬密封连接，阀盖10和阀座在第二密封面40处软密封连接。如在此使用的，“硬密封”可以表示形成密封连接的两个密封面均采用金属材料或硬质其他材料，“软密封”可以表示形成密封连接的其中一个密封面采用金属材料或其他硬质材料，另一个密封面采用弹性非金属材料。
本申请通过使得阀盖10和阀座在第一密封面30处实现硬密封，在第二密封面40处实现软密封，从而使得阀盖10与阀座之间的安装缝隙处实现硬密封和软密封的双重密封，大大增加了密封效果，降低了泄漏率，使得电磁阀100稳定可靠的运行。
如图1所示，电磁阀100包括导阀部件50、阀盖10和阀座。阀盖10上开设有安装孔13，导阀部件50部分安装于安装孔13中与阀盖10固定连接，阀座上开设有安装槽21，固定连接后的导阀部件50与阀盖10一同安装于安装槽21中，如此实现了导阀部件50、阀盖10和阀座三者之间的安装连接。
进一步地，导阀部件50包括阀套51。阀套51伸入安装孔13内，且焊接于阀盖10上。阀套51内具有阀腔511，阀座内具有与阀腔511连通的阀口22；阀腔511内设置有活塞单元52，活塞单元52能够在阀腔511内沿阀套51的轴线方向作往返运动，以启/闭阀口22。
具体地，活塞单元52包括动铁芯521、定铁芯522和弹性件523。定铁芯522固定设置于阀套51内远离阀口22的一端，动铁芯521位于阀套51内靠近阀口22的一端，弹性件523连接于动铁芯521和定铁芯522之间，动铁芯521能够在弹性件523的带动下朝向靠近/远离定铁芯522的方向运动。
可选地，弹性件523选用弹簧。当然，在其他实施例中，弹性件523还可以选用其他类型的弹性结构，在此不作限定。
进一步地，动铁芯521靠近阀口22一端连接有活塞524。随着动铁芯521在阀套51内沿阀套51轴线方向的运动，活塞524能够抵靠于阀口22上以密封阀口22或者脱离阀口22以开启阀口22，如此便实现了电磁阀100管路的连通或隔断。
本申请提供的电磁阀100的工作原理为：当阀套51外套设的电磁线圈通电时，动铁芯521克服弹性件523的弹力朝向靠近定铁芯522的方向运动，此时活塞524在动铁芯521的带动下脱离阀口22，阀口22开启，电磁阀100实现进出管路的连通；当阀套51外套设的电磁线圈断电时，动铁芯521在弹性件523回复力的带动下朝向远离定铁芯522的方向运动，此时活塞524在动铁芯521的带动下抵靠阀口22，阀口22被活塞524密封，电磁阀100实现进出管路的隔断。
进一步地，阀盖10包括互相连接的大径段11和小径段12。大径段11的直径大于小径段12的直径。大径段11位于阀盖10上靠近导阀部件50的一端，小径段12位于阀盖10上靠近阀座的一端，且大径段11和小径段12一体成型形成阀盖10。
具体地，当阀盖10安装于阀座上时，小径段12伸入安装槽21中，并与安装槽21的槽壁相贴合，大径段11抵接于阀座上。通过设置大径段11使得 阀盖10安装于阀座上时能够与阀座抵接形成限位，防止阀盖10过度伸入阀座中，引发结构的断裂。
进一步地，大径段11与阀座之间抵接形成第一密封面30，小径段12与安装槽21的槽壁贴合形成第二密封面40，阀盖10和阀座在第一密封面30处实现硬密封连接，阀盖10和阀座在第二密封面40处实现软密封连接。
具体地，大径段11上具有第一贴合面31，阀座上与大径段11抵接处具有第二贴合面32。第一贴合面31和第二贴合面32互相贴合形成第一密封面30，且第一贴合面31和第二贴合面32之间面面贴合形成硬密封连接，以在提高密封性能的基础上也使得密封强度得到提升。
如图2所示，在一实施例中，第一贴合面31上设有朝向第二贴合面32凸出的台阶部311，第二贴合面32上设有与台阶部311相配合的凹陷部321，且凹陷部321朝向远离第一贴合面31的方向凹陷，当第一贴合面31贴合于第二贴合面32时，台阶部311和凹陷部321之间紧密配合，如此使得在第一密封面30处实现了另一种形式的硬密封。
需要说明的是，增设台阶部311后的第一密封面30相对于未增设台阶部311的第一密封面30来说，对外部渗透进来的介质又增加了一道阻挡的屏障；也就是说，假设未增设台阶部311的第一密封面30为水平方向，那么增设台阶部311后的第一密封面30则在水平方向布设的基础上又增设了一条垂直方向的密封面；假如仍是存在少量介质从第一密封面30处渗透出去，那么介质从水平方向的第一密封面30渗透至台阶部311处的垂直方向的第一密封面30时，则会受到阻挡而无法继续渗透。因此台阶部311的开设进一步增强了硬密封的密封性能，降低了泄漏率。
需要注意的是，台阶部311并不局限于设置在第一贴合面31；在其他实 施例中，台阶部311也可以设置于第二贴合面32上，此时凹陷部321相对应的设置于第一贴合面31上，只要能够实现密封性能的提升即可，在此不作限定。
当然，在本实施例中，台阶部311的数量可以依据结构或者不同需求作相应调整，可以设置为一个、两个、三个甚至更多，在此不作限定。
如图3所示，在另一实施例中，第一贴合面31上设有朝向第二贴合面32凸出的环形凸起312。第一贴合面31贴合于第二贴合面32时，环形凸起312能够被压紧并嵌入于第二贴合面32中。如此便进一步增强了阀盖10和阀座在第一密封面30处的密封性能。
具体地，环形凸起312的根部宽度大于顶部宽度，而且从顶部至根部其宽度逐渐变大。如此使得第一密封面30处的面面密封变成了线面密封，宽度较小的顶部通过减小接触面积来增大接触应力，从而提高了硬密封的可靠性。
在本实施例中，环形凸起312并不局限于设置在第一贴合面31；在其他实施例中，环形凸起312也可以设置于第二贴合面32上，只要能够实现密封性能的提升即可，在此不作限定。
值得注意的是，不论环形凸起312设置在第一贴合面31还是第二贴合面32，都要保证设置有环形凸起312的阀盖10或阀座的材料硬度大于未设有环形凸起312的阀座或阀盖10，如此以便于环形凸起312更好的产生弹塑性变形，容易嵌入阀座或阀盖10中。
可选地，在本实施例中，阀盖10的材料选用较硬的不锈钢，阀座的材料选用铝合金；当然，在其他实施例中，阀盖10和阀座还可以适应性选用铜等其他金属材料，在此不作限定。
可选地，环形凸起312的截面形状为三角形、圆弧形或梯形。只要能够保证环形凸起312的根部宽度大于顶部宽度，从而便于环形凸起312嵌入阀座或阀盖10中即可，在此不作限定。
在本实施例中，环形凸起312的数量可以是一道或者若干道。可选地，环形凸起312的数量为两道或者三道。虽然从理论上来讲，环形凸起312的数量越多，密封可靠性越高，但环形凸起312的数量越多，其高出第一贴合面31的高度的加工误差累积也越大，这会使得每道环形凸起312的密封效果不尽相同，同时环形凸起312的数量越多，其所占用的空间也越大，其所需要的用于保证弹塑性变形量的螺纹预紧力也越大，这会使得整体结构变得臃肿。综合考虑上述因素，优选环形凸起312的数量为两道或者三道，可兼顾密封效果、结构大小和加工精度等多重因素。
进一步地，小径段12的外壁具有第三贴合面41，阀座的内壁具有第四贴合面42，第三贴合面41和第四贴合面42互相贴合形成第二密封面40。第三贴合面41上开设有密封槽411，密封槽411内安装有密封圈43，密封圈43位于密封槽411内并挤压于第四贴合面42。如此实现了阀盖10和阀座之间的第二道软密封，增强了密封性能，降低了泄漏率。
需要说明的是，在第一密封面30处设置有第一道硬密封的基础上，继续在第二密封面40处设置第二道软密封，以起到备用和防护密封的作用，在环形凸起312所形成的硬密封失效的情况下，使得阀座与阀盖10之间依然能够通过第二道软密封保持密封。相应的，如若密封圈43在极端低温、高温的环境下导致失效，则此时阀座与阀盖10之间也依然能够通过第一道硬密封保持密封，从而提高了阀盖10与阀座之间的密封可靠性。
可选地，密封圈43选用O形密封圈43且并不局限于采用O形密封圈43，在其他实施例中，也可以选用其他密封结构，只要能够实现密封即可。
在本实施例中，密封槽411并不局限于设置在第三贴合面41。在其他实施例中，密封槽411也可以设置于第四贴合面42上，或者第三贴合面41和第四贴合面42均开设有密封槽411，只要能够实现密封性能的提升即可，在此不作限定。
本申请还提供一种空调系统(200)，包括以上的电磁阀100。
本申请提供的一种电磁阀100，通过使得阀盖10和阀座在第一密封面30处实现硬密封，在第二密封面40处实现软密封，从而使得阀盖10与阀座之间的安装缝隙处实现硬密封和软密封的双重密封，大大增加了密封效果，降低了泄漏率，使得电磁阀100稳定可靠的运行。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对实用新型专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种电磁阀，包括阀盖和阀座，所述阀座上开设有安装槽，所述阀盖部分安装于所述安装槽内；
    其特征在于，所述阀盖包括互相连接的大径段和小径段，所述小径段伸入所述安装槽中，并与所述安装槽的槽壁相贴合，所述大径段抵接于所述阀座上；
    所述大径段与所述阀座之间抵接形成第一密封面，所述小径段与所述安装槽的槽壁贴合形成第二密封面，所述阀盖和所述阀座在所述第一密封面处硬密封连接，所述阀盖和所述阀座在所述第二密封面处软密封连接。
  2. 根据权利要求1所述的电磁阀，其中，所述大径段上具有第一贴合面，所述阀座与所述大径段抵接处具有第二贴合面，所述第一贴合面和所述第二贴合面互相贴合形成所述第一密封面，且所述第一贴合面和所述第二贴合面之间面面贴合形成硬密封连接。
  3. 根据权利要求2所述的电磁阀，其中，所述第一贴合面上设有朝向所述第二贴合面凸出的台阶部，所述第二贴合面上设有与所述台阶部相配合的凹陷部，且所述凹陷部朝向远离所述第一贴合面的方向凹陷，所述第一贴合面贴合于所述第二贴合面时，所述台阶部和所述凹陷部之间紧密配合。
  4. 根据权利要求2所述的电磁阀，其中，所述第一贴合面上设有朝向所述第二贴合面凸出的环形凸起，所述第一贴合面贴合于所述第二贴合面时，所述环形凸起能够被压紧并嵌入于所述第二贴合面中。
  5. 根据权利要求4所述的电磁阀，其中，所述阀盖的材料硬度大于所述阀座的材料硬度。
  6. 根据权利要求4所述的电磁阀，其中，所述环形凸起的截面形状为三角 形或圆弧形。
  7. 根据权利要求1所述的电磁阀，其中，所述小径段的外壁具有第三贴合面，所述阀座的内壁具有第四贴合面，所述第三贴合面和所述第四贴合面互相贴合形成第二密封面；
    所述第三贴合面上开设有密封槽，所述密封槽内安装有密封圈，所述密封圈位于所述密封槽内并挤压于所述第四贴合面。
  8. 根据权利要求1所述的电磁阀，其中，所述电磁阀还包括导阀部件，所述导阀部件固定安装于所述阀盖中，所述导阀部件包括阀套，所述阀套内具有阀腔，所述阀座内具有与所述阀腔连通的阀口；
    所述阀套内部还设置有活塞单元，所述活塞单元能够在所述阀腔内沿所述阀套轴线方向运动，以启/闭所述阀口。
  9. 根据权利要求8所述的电磁阀，其中，所述活塞单元包括动铁芯、定铁芯和弹性件，所述弹性件的两端分别连接所述动铁芯和所述定铁芯，所述动铁芯能够在所述弹性件的弹性力和电磁力的作用下朝向靠近/远离所述定铁芯的方向运动，以启/闭所述阀口。
  10. 一种空调系统，其特征在于，包括如权利要求1-9任意一项所述的电磁阀。
PCT/CN2022/104311 2021-07-07 2022-07-07 电磁阀及具有其的空调系统 Ceased WO2023280262A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22837007.8A EP4368861B1 (en) 2021-07-07 2022-07-07 Electromagnetic valve and air conditioning system provided with same
US18/401,498 US20240229958A9 (en) 2021-07-07 2023-12-31 Electromagnetic valve and air conditioning system provided with same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202121564556.5 2021-07-07
CN202121564556.5U CN215980869U (zh) 2021-07-07 2021-07-07 电磁阀及具有其的空调系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/401,498 Continuation US20240229958A9 (en) 2021-07-07 2023-12-31 Electromagnetic valve and air conditioning system provided with same

Publications (1)

Publication Number Publication Date
WO2023280262A1 true WO2023280262A1 (zh) 2023-01-12

Family

ID=80577098

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/104311 Ceased WO2023280262A1 (zh) 2021-07-07 2022-07-07 电磁阀及具有其的空调系统

Country Status (4)

Country Link
US (1) US20240229958A9 (zh)
EP (1) EP4368861B1 (zh)
CN (1) CN215980869U (zh)
WO (1) WO2023280262A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117927688A (zh) * 2024-03-21 2024-04-26 成都乘风阀门有限责任公司 一种高压零泄漏放空阀

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN215980869U (zh) * 2021-07-07 2022-03-08 浙江盾安机械有限公司 电磁阀及具有其的空调系统
CN117662987A (zh) * 2023-12-13 2024-03-08 北京天玛智控科技股份有限公司 加氢口和车辆
CN223242195U (zh) * 2024-07-19 2025-08-19 盾安汽车热管理科技有限公司 电动阀
CN120007821A (zh) * 2025-03-28 2025-05-16 亚普汽车部件（开封）有限公司 一种氢燃料电池汽车用70MPa加氢口

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1571875A (en) * 1977-03-15 1980-07-23 Posi Seal International Extendend temperature range valve seal
CN108087605A (zh) * 2016-11-21 2018-05-29 浙江三花汽车零部件有限公司 一种电磁阀
CN208982685U (zh) * 2018-08-30 2019-06-14 昆山维萨阀门股份有限公司 一种金属硬密封球阀
CN215980869U (zh) * 2021-07-07 2022-03-08 浙江盾安机械有限公司 电磁阀及具有其的空调系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221988A1 (de) * 1992-07-04 1994-01-05 Teves Gmbh Alfred Elektromagnetventil
JP5498269B2 (ja) * 2010-06-15 2014-05-21 川崎重工業株式会社 電磁式開閉弁
JP5974239B2 (ja) * 2012-05-25 2016-08-23 株式会社テージーケー 制御弁
EP3677820B1 (en) * 2017-08-28 2025-07-16 Eagle Industry Co., Ltd. Electromagnetic valve
JP2020070900A (ja) * 2018-11-01 2020-05-07 株式会社ニッキ パイロット式電磁弁
CN209725387U (zh) * 2019-01-25 2019-12-03 浙江易达汽车零部件有限公司 一种常闭型电磁阀
EP3951226B1 (en) * 2019-03-29 2025-04-23 Fujikoki Corporation Electric valve
CN112303317B (zh) * 2019-07-29 2023-05-12 浙江三花商用制冷有限公司 一种先导式电磁阀
US12007038B2 (en) * 2019-09-23 2024-06-11 Jiangmen Tiandi Electrical Appliance Co., Ltd Water inlet solenoid valve capable of improving electromagnetic attraction and implementing method therefor
CN211693533U (zh) * 2019-11-01 2020-10-16 浙江盾安禾田金属有限公司 电磁阀
US12234923B2 (en) * 2021-02-08 2025-02-25 Fujikoki Corporation Electric valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1571875A (en) * 1977-03-15 1980-07-23 Posi Seal International Extendend temperature range valve seal
CN108087605A (zh) * 2016-11-21 2018-05-29 浙江三花汽车零部件有限公司 一种电磁阀
CN208982685U (zh) * 2018-08-30 2019-06-14 昆山维萨阀门股份有限公司 一种金属硬密封球阀
CN215980869U (zh) * 2021-07-07 2022-03-08 浙江盾安机械有限公司 电磁阀及具有其的空调系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4368861A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117927688A (zh) * 2024-03-21 2024-04-26 成都乘风阀门有限责任公司 一种高压零泄漏放空阀
CN117927688B (zh) * 2024-03-21 2024-05-24 成都乘风阀门有限责任公司 一种高压零泄漏放空阀

Also Published As

Publication number Publication date
EP4368861A1 (en) 2024-05-15
EP4368861B1 (en) 2025-09-03
CN215980869U (zh) 2022-03-08
US20240133479A1 (en) 2024-04-25
EP4368861A4 (en) 2024-10-09
US20240229958A9 (en) 2024-07-11

Similar Documents

Publication Publication Date Title
WO2023280262A1 (zh) 电磁阀及具有其的空调系统
JP7499885B2 (ja) 止め弁
US20150300508A1 (en) Valve Seat for Floating Ball Valve
US12510163B2 (en) Electromagnetic valve and air conditioning system having same
JP2023552939A (ja) 止め弁及びそれを有する空調システム
CN204553935U (zh) 一种球阀
CN216742923U (zh) 可逆电磁阀
JP2024543506A (ja) 止め弁
CN214788290U (zh) 一种梭阀
CN213629011U (zh) 膜片式电磁阀
KR20230058143A (ko) 스톱 밸브 및 이를 구비한 공조 시스템
CN220505895U (zh) 一种单向阀
CN216692169U (zh) 一种截止阀
CN113074275A (zh) 电磁阀
WO2024021828A1 (zh) 电子膨胀阀及制冷设备
US12305772B2 (en) Reversible electromagnetic valve and air conditioning unit having same
CN211288825U (zh) 阀门密封结构及具有其的阀门
CN116085475A (zh) 一种电动阀
CN115560080A (zh) 电磁阀及空调设备
CN217177418U (zh) 一种带充气的气动挡板阀
CN216078821U (zh) 橡胶密封垫
CN215172427U (zh) 一种密封性好的圆顶阀装置
CN119412507B (zh) 一种双偏心蝶阀
CN209959921U (zh) 一种防止球阀阀杆飞出的复合结构
CN216198874U (zh) 一种新型隔膜压缩机

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: 22837007

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2022837007

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2022837007

Country of ref document: EP

Effective date: 20240207

NENP Non-entry into the national phase

Ref country code: DE

WWG Wipo information: grant in national office

Ref document number: 2022837007

Country of ref document: EP