WO2026017167A1 - 电动阀 - Google Patents

电动阀

Info

Publication number
WO2026017167A1
WO2026017167A1 PCT/CN2025/109415 CN2025109415W WO2026017167A1 WO 2026017167 A1 WO2026017167 A1 WO 2026017167A1 CN 2025109415 W CN2025109415 W CN 2025109415W WO 2026017167 A1 WO2026017167 A1 WO 2026017167A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
wall
mounting hole
annular protrusion
valve body
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.)
Pending
Application number
PCT/CN2025/109415
Other languages
English (en)
French (fr)
Inventor
王文印
蔡培裕
金钜
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
Publication of WO2026017167A1 publication Critical patent/WO2026017167A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • 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
    • F16K1/46—Attachment of sealing rings
    • 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

Definitions

  • This application relates to the field of valve technology, and more specifically, to an electric valve.
  • valve body and valve seat are interconnected.
  • a sealing ring is usually installed between the valve body and the valve seat to prevent refrigerant leakage from the valve seat.
  • existing sealing methods have poor reliability, pose a risk of leakage, affect safety, and cannot meet the usage requirements.
  • This application provides an electric valve to solve the problem of poor sealing between the valve body and valve seat in existing electric valves, which affects safety.
  • this application provides an electric valve, comprising: a valve body and a valve seat, the valve seat having a mounting hole and a valve cavity, the valve body being detachably mounted in the mounting hole, the outer wall of the valve body and/or the inner wall of the mounting hole having an annular protrusion, the outer wall of the valve body and the inner wall of the mounting hole being sealed together by the annular protrusion; a fixed connection structure and a sealing ring being provided axially spaced between the outer wall of the valve body and the inner wall of the mounting hole; wherein the annular protrusion, the sealing ring, and the valve cavity are arranged sequentially.
  • valve body includes a valve cover, which is detachably mounted in a mounting hole, wherein...
  • the valve cover has an annular protrusion, and the hardness of the valve cover is greater than that of the valve seat.
  • valve seat may have an annular protrusion, and the hardness of the valve seat may be greater than that of the valve cover.
  • annular protrusions which are distributed radially and/or axially in the mounting hole.
  • the radial cross-section of the annular protrusion is triangular, rectangular, trapezoidal, or arc-shaped.
  • the fixed connection structure is a threaded connection structure, with a threaded connection between the outer wall of the valve body and the inner wall of the mounting hole.
  • the annular protrusion is located between the threaded connection structure and the sealing ring, and the threaded connection structure applies a clamping force to the annular protrusion after tightening.
  • valve body includes a valve cover, the outer wall of the valve cover and/or the inner wall of the mounting hole having an annular protrusion, the valve cover having an external thread, the inner wall of the mounting hole having an internal thread, the internal thread and the external thread engaging to form a threaded engagement structure.
  • the valve body includes a valve cover and a pressure ring.
  • the outer wall of the valve cover and/or the inner wall of the mounting hole have annular protrusions.
  • the pressure ring is fitted onto the valve cover and is interference-fitted with the valve cover.
  • the pressure ring and the valve cover are axially limited.
  • the pressure ring has external threads, and the inner wall of the mounting hole has internal threads. The internal and external threads fit together to form a threaded fit structure.
  • the pressure ring applies pressure to the valve cover after tightening.
  • sealing ring is located between the outer peripheral wall of the valve body and the inner wall of the mounting hole.
  • valve body includes a first body and a second body connected to each other, with the end of the second body extending into the first body and connecting to the first body, and a sealing ring located on the peripheral outer wall of the first body; a sealing element is provided between the outer wall of the second body and the valve seat.
  • the outer wall of the valve body and the inner wall of the mounting hole form a first-step mating structure, which has an annular protrusion.
  • the outer wall of the valve body and the inner wall of the mounting hole also form a second step mating structure, and the first step mating structure and the second step mating structure are spaced apart along the axial direction of the mounting hole; wherein, the second step mating structure has an annular protrusion or the second step mating structure has no annular protrusion.
  • the first step mating structure includes a first outer stepped surface located on the outer wall of the valve body and a first inner stepped surface located on the inner wall of the mounting hole
  • the second step mating structure includes a second outer stepped surface located on the outer wall of the valve body and a second inner stepped surface located on the inner wall of the mounting hole.
  • the annular protrusion is located on the first outer step surface or on the first inner step surface, the first outer step surface and the first inner step surface are sealed together by the annular protrusion, and the second outer step surface and the second inner step surface are sealed together.
  • the annular protrusion is located on the second outer step surface or on the second inner step surface, the second outer step surface and the second inner step surface are sealed together by the annular protrusion, and the first outer step surface and the first inner step surface are sealed together.
  • first step mating structure and the second step mating structure include annular protrusions
  • first outer step surface or the first inner step surface has annular protrusions
  • second outer step surface or the second inner step surface has annular protrusions
  • first outer step surface and the first inner step surface are sealed together by the annular protrusions
  • the second outer step surface and the second inner step surface are sealed together by the annular protrusions.
  • the outer wall of the valve body and the inner wall of the mounting hole also have a threaded fit structure, and the threaded fit structure, the first step fit structure, the second step fit structure, the sealing ring, and the valve cavity are arranged in sequence, or the sealing ring, the first step fit structure, the second step fit structure, the threaded fit structure, and the valve cavity are arranged in sequence.
  • the outer wall of the valve body and the inner wall of the mounting hole also have a threaded engagement structure, and the threaded engagement structure, the first step engagement structure, and the sealing ring are arranged in sequence; a cavity is formed between the outer wall of the valve body and the inner wall of the mounting hole, the cavity is located between the first step engagement structure and the threaded engagement structure, and a receiving groove is provided in the cavity.
  • annular protrusion is provided on the first outer stepped surface, and the first outer stepped surface and the annular protrusion are an integral structure; or an annular protrusion is provided on the first inner stepped surface, and the first inner stepped surface and the annular protrusion are an integral structure.
  • annular protrusion is provided on the second outer stepped surface, and the second outer stepped surface and the annular protrusion are an integral structure; or an annular protrusion is provided on the second inner stepped surface, and the second inner stepped surface and the annular protrusion are an integral structure.
  • the annular protrusions are multiple with different diameters, and the multiple annular protrusions are arranged at radial intervals along the valve body.
  • the part of the valve body that mates with the mounting hole includes a threaded section, a first stage, a second stage, and a sealing section, which decrease in diameter sequentially along the axial direction of the valve body.
  • the threaded section is threaded to the inner wall of the mounting hole.
  • the first-step mating structure is located between the first stage and the second stage, and the second-step mating structure is located between the second stage and the sealing section.
  • a sealing ring is provided between the sealing section and the inner wall of the mounting hole.
  • the sealing section has an annular sealing groove, and the sealing ring is located inside the annular sealing groove; or the inner wall of the mounting hole has an annular sealing groove, and the sealing ring is located inside the annular sealing groove.
  • This application provides an electric valve comprising a valve body, a valve seat, and a sealing ring.
  • the valve seat has a mounting hole and a valve cavity.
  • the valve body is detachably mounted in the mounting hole.
  • the outer wall of the valve body and/or the inner wall of the mounting hole have an annular protrusion, which seals against the outer wall of the valve body and the inner wall of the mounting hole.
  • a fixed connection structure and a sealing ring are axially spaced between the outer wall of the valve body and the inner wall of the mounting hole.
  • the annular protrusion, the sealing ring, and the valve cavity are arranged sequentially.
  • the annular protrusion on the outer wall of the valve body and/or the inner wall of the mounting hole seals the space between them. This adds at least one hard seal to the soft seal provided by the sealing ring, thereby enhancing the sealing effect, preventing refrigerant leakage from the valve cavity, and improving safety.
  • the sealing ring is closer to the valve cavity than the annular protrusion. This allows the sealing ring to block all or most of the refrigerant within the valve cavity, preventing refrigerant leakage.
  • Figure 1 shows a schematic diagram of the structure of the electric valve provided in Embodiment 1 of this application;
  • Figure 2 shows a partial enlarged view of Figure 1
  • FIG. 3 shows a schematic diagram of the valve cover in Figure 1;
  • Figure 4 shows a schematic diagram of the structure of the electric valve provided in Embodiment 2 of this application.
  • Figure 5 shows a partial enlarged view of Figure 4.
  • Figure 6 shows a schematic diagram of the valve cover in Figure 4.
  • Figure 7 shows a schematic diagram of the structure of the electric valve provided in Embodiment 3 of this application.
  • Figure 8 shows a partial enlarged view of Figure 7
  • Figure 9 shows a partial enlarged view of Figure 8.
  • Figure 10 shows a partial enlarged view of the valve body in Figure 7 at the position where it mates with the valve seat;
  • Figure 11 shows a partial enlarged view of the valve seat in Figure 7 in the position where it mates with the valve body.
  • valve body 100.
  • First body 150.
  • First body 160.
  • Second body 170.
  • Seal 101.
  • Annular protrusion 103.
  • Valve cover 120.
  • Valve tube 130.
  • Pressure ring 200, Valve seat; 201, Valve cavity; 202, First inner stepped surface; 203, Receiving groove; 204, Second inner stepped surface; 205.
  • First interface 206.
  • Second interface 310.
  • First-step fit structure 320.
  • Second-step fit structure 330. Threaded fit structure; 340.
  • Sealing ring 100.
  • First-step fit structure 320.
  • Second-step fit structure 330.
  • Threaded fit structure 340. Sealing ring.
  • Embodiment 1 of this application provides an electric valve, including a valve body 100, a valve seat 200, and a sealing ring 340.
  • the valve seat 200 has a mounting hole and a valve cavity 201.
  • the valve body 100 is detachably mounted in the mounting hole.
  • the outer wall of the valve body 100 and/or the inner wall of the mounting hole have an annular protrusion 102.
  • the outer wall of the valve body 100 and the inner wall of the mounting hole are sealed together by the annular protrusion 102.
  • the annular protrusion 102, the sealing ring 340, and the valve cavity 201 are arranged sequentially.
  • the outer wall of the valve body 100 and/or the inner wall of the mounting hole have an annular protrusion 102.
  • This annular protrusion 102 seals the space between the outer wall of the valve body 100 and the inner wall of the mounting hole. That is, while using the sealing ring 340 for a soft seal, the annular protrusion 102 adds at least one hard seal, thereby enhancing the sealing effect, preventing refrigerant leakage from the valve cavity 201, and improving safety.
  • the sealing performance between the valve body 100 and the valve seat 200 can also be enhanced by deforming the annular protrusion 102 through compression.
  • the sealing performance between the valve body 100 and the valve seat 200 is enhanced by embedding the annular protrusion 102.
  • the annular protrusion 102 may be provided on the outer wall of the valve body 100, that is, the annular protrusion 102 is part of the outer wall of the valve body 100; the annular protrusion 102 may be provided on the inner wall of the mounting hole, that is, the annular protrusion 102 is part of the inner wall of the mounting hole; or, the annular protrusion 102 may be provided on the outer wall of the valve body 100 and the inner wall of the mounting hole respectively.
  • the sealing ring 340 is closer to the valve cavity 201 than the annular protrusion 102. This allows the sealing ring 340 to block all or most of the refrigerant within the valve cavity 201, preventing refrigerant leakage. Even if refrigerant leaks through the sealing ring 340 and flows to the annular protrusion 102, only a small amount leaks.
  • the annular protrusion 102 facing this small amount of refrigerant, provides a good seal, thus preventing refrigerant leakage. Therefore, the relative positions of the annular protrusion 102, the sealing ring 340, and the valve cavity 201 in this design also improve the sealing effect of the electric valve. This type of electric valve is suitable for environments with high sealing requirements, such as when using highly flammable refrigerant R290. This design can prevent leakage and ensure the safety of R290.
  • the valve body 100 includes a valve cover 110, which is detachably mounted in a mounting hole.
  • the valve cover 110 has an annular protrusion 102, and the hardness of the valve cover 110 is greater than the hardness of the valve seat 200; or in other embodiments, the valve seat 200 has an annular protrusion 102, and the hardness of the valve seat 200 is greater than the hardness of the valve cover 110.
  • valve cover 110 there is a hardness difference between the valve cover 110 and the valve seat 200, with the annular protrusion 102 located on the harder structure.
  • the annular protrusion 102 applies pressure to the harder structure it contacts, causing deformation at the contact point. This increases the contact area with the annular protrusion 102, improving the sealing effect after assembly.
  • the valve cover 110 is made of stainless steel, with the annular protrusion 102 located on it, while the valve seat 200 is made of aluminum alloy.
  • annular protrusion 102 there is one annular protrusion 102.
  • the multiple annular protrusions 102 can further increase the sealing effect and prevent leakage of the electric valve.
  • the radial cross-section of the annular protrusion 102 can be triangular, rectangular, trapezoidal, or arc-shaped. These annular protrusions 102 of different shapes can all make full contact with the corresponding surfaces after assembly, thereby achieving a seal.
  • the fixed connection structure is a threaded connection structure 330.
  • the annular protrusion 102 is located between the threaded connection structure 330 and the sealing ring 340. After the threaded connection structure 330 is tightened, it applies a clamping force to the annular protrusion 102.
  • the threaded connection between the valve body 100 and the valve seat 200 is achieved through the threaded mating structure 330, facilitating disassembly and assembly. Furthermore, during the thread tightening process, by applying sufficient torque, the mating surfaces between the outer wall of the valve body 100 and the inner wall of the mounting hole are pressed together, thereby pressing the annular protrusion 102 and achieving a seal at the location of the annular protrusion 102.
  • the valve body 100 includes a valve cover 110.
  • the outer wall of the valve cover 110 and/or the inner wall of the mounting hole have an annular protrusion 102.
  • the valve cover 110 has an external thread, and the inner wall of the mounting hole has an internal thread.
  • the internal and external threads engage to form a threaded engagement structure 330. That is, an external thread is provided on the valve cover 110 to achieve connection with the valve seat 200.
  • first stepped mating structure 310 which has an annular protrusion 102.
  • the first stepped mating structure 310 allows for accurate positioning of the valve body 100 and the valve seat 200 during assembly.
  • the two mating surfaces are planes. Due to machining and assembly errors, the two mating planes may not make full contact, thus posing a risk of leakage at the location of the stepped mating structure.
  • an annular protrusion 102 is provided within the first stepped mating structure 310.
  • a sealing ring 340 is located between the peripheral outer wall of the valve body 100 and the inner wall of the mounting hole, strengthening the connection between the valve body 100 and the valve seat 200.
  • the valve body 100 includes a first body 150 and a second body 160 connected to each other.
  • the end of the second body 160 extends into and connects to the first body 150.
  • the first body 150 and the second body 160 can be fixed together by interference fit or welded after interference fit.
  • a sealing ring 340 is located on the peripheral outer wall of the first body 150.
  • the peripheral outer wall refers to the annular outer wall surrounding the entire circumference.
  • a sealing element 170 is provided between the outer wall of the second body 160 and the valve seat 200. The sealing element 170 prevents refrigerant from leaking from the valve cavity 201 to the outside of the valve seat 200 when the valve is closed.
  • the valve body 100 includes a valve cover 110 and a pressure ring 140.
  • the outer wall of the valve cover 110 and/or the inner wall of the mounting hole has an annular protrusion 102.
  • the pressure ring 140 is sleeved on the valve cover 110 and has an interference fit with it.
  • the pressure ring 140 and the valve cover 110 are axially limited.
  • the pressure ring 140 has an external thread, and the inner wall of the mounting hole has an internal thread. The internal and external threads engage to form a threaded engagement structure 330. After tightening, the pressure ring 140 applies pressure to the valve cover 110.
  • the outer wall of the valve body 100 and the inner wall of the mounting hole also form a second step mating structure 320.
  • the first step mating structure 310 and the second step mating structure 320 are spaced apart along the axial direction of the mounting hole.
  • the second step mating structure 320 has an annular protrusion 102 or the second step mating structure 320 does not have an annular protrusion 102.
  • valve body 100 and valve seat 200 are connected via at least two stepped mating structures. Since at least one of these stepped mating structures has an annular protrusion 102, the annular protrusion 102 ensures that both the first stepped mating structure 310 and the second stepped mating structure 320 can achieve a sealing fit after assembly, thus guaranteeing a sealing effect.
  • This design achieves sealing by providing an annular protrusion 102 at the mating position, therefore requiring less machining precision and reducing processing costs.
  • the electric valve can be a solenoid valve or an electronic expansion valve, etc.
  • the annular protrusion 102 can easily contact the corresponding structure and achieve a seal. Furthermore, the annular protrusion 102 is prone to deformation under stress, resulting in more thorough contact with the corresponding structure and a better sealing effect after deformation.
  • the annular protrusion 102 can easily contact the corresponding structure and achieve a seal. Furthermore, the annular protrusion 102 is prone to deformation under stress, resulting in more thorough contact with the corresponding structure and a better sealing effect after deformation.
  • the outer wall of the valve body 100 and the inner wall of the mounting hole are provided with a threaded engagement structure 330.
  • the threaded engagement structure 330, the first step engagement structure 310, the second step engagement structure 320, the sealing ring 340 and the valve cavity 201 are arranged in sequence, or the sealing ring 340, the first step engagement structure 310, the second step engagement structure 320, the threaded engagement structure 330 and the valve cavity 201 are arranged in sequence.
  • the two settings mentioned above separate the threaded mating structure 330 and the sealing ring 340, preventing debris from entering the location of the sealing ring 340 from the threaded mating structure 330, thereby preventing debris from affecting the sealing performance of the sealing ring 340.
  • the outer wall of the valve body 100 and the inner wall of the mounting hole are further provided with a threaded engagement structure 330.
  • the threaded engagement structure 330, the first step engagement structure 310, and the sealing ring 340 are arranged in sequence.
  • a cavity is formed between the outer wall of the valve body 100 and the inner wall of the mounting hole.
  • the cavity is located between the first step engagement structure 310 and the threaded engagement structure 330.
  • a receiving groove 203 is provided in the cavity.
  • the threaded mating structure 330, the first stepped mating structure 310, the second stepped mating structure 320, and the sealing ring 340 are arranged sequentially from top to bottom;
  • the outer wall of the valve body 100 has an annular first outer stepped surface 101, and the inner wall of the mounting hole has a first inner stepped surface 202 corresponding to the first outer stepped surface 101.
  • the first inner stepped surface 202 has a receiving groove 203 arranged around the first outer stepped surface 101, and the receiving groove 203 is used to receive debris falling from the threaded mating structure 330.
  • the outer wall of the valve body 100 has an annular first outer stepped surface 101, and an annular protrusion 102 is provided on the first outer stepped surface 101.
  • the first outer stepped surface 101 and the annular protrusion 102 are integral structures.
  • the inner wall of the mounting hole has a first inner stepped surface 202 corresponding to the first outer stepped surface 101.
  • the first step mating structure 310 includes the first outer stepped surface 101, the annular protrusion 102 and the first inner stepped surface 202.
  • the annular protrusion 102 is a protruding structure with a small width, which makes it easy to deform when squeezed, so that it can fully contact the first inner stepped surface 202 and achieve a reliable seal. Furthermore, the deformation of the annular protrusion 102 avoids the second stepped mating structure 320 from having a mating gap, so that the second stepped mating structure 320 can also be reliably sealed.
  • the outer wall of the valve body 100 has an annular first outer stepped surface 101
  • the inner wall of the mounting hole has a first inner stepped surface 202 corresponding to the first outer stepped surface 101.
  • An annular protrusion 102 is provided on the first inner stepped surface 202, and the first inner stepped surface 202 and the annular protrusion 102 are integral structures.
  • the first step mating structure 310 includes the first outer stepped surface 101, the annular protrusion 102, and the first inner stepped surface 202.
  • the annular protrusions 102 can be configured as multiple protrusions with different diameters.
  • the multiple annular protrusions 102 are arranged at radial intervals along the valve body 100.
  • the sealing effect can be improved by using multiple annular protrusions 102.
  • the outer wall of the valve body 100 has an annular second outer stepped surface 103
  • the inner wall of the mounting hole has a second inner stepped surface 204 corresponding to the second outer stepped surface 103.
  • the second outer stepped surface 103 and the second inner stepped surface 204 abut to achieve a seal.
  • the second outer stepped surface 103 and the second inner stepped surface 204 form a second step mating structure 320.
  • the abutment of the second outer stepped surface 103 and the second inner stepped surface 204 ensures a reliable seal.
  • the part of the valve body 100 that mates with the mounting hole includes a threaded section 104, a first step 105, a second step 106, and a sealing section 107, which are sequentially reduced in diameter along the axial direction of the valve body 100.
  • the threaded section 104 is threaded to the inner wall of the mounting hole.
  • the first step mating structure 310 is located between the first step 105 and the second step 106.
  • the second step mating structure 320 is located between the second step 106 and the sealing section 107.
  • a sealing ring 340 is provided between the sealing section 107 and the inner wall of the mounting hole.
  • the multi-segment structure makes it easy to process the part of the valve body 100 that mates with the mounting hole, forming a two-step mating structure, and facilitates insertion into the valve seat 200.
  • the sealing section 107 has an annular sealing groove 108, and the sealing ring 340 is located inside the annular sealing groove 108; or the inner wall of the mounting hole has an annular sealing groove 108, and the sealing ring 340 is located inside the annular sealing groove 108.
  • the valve body 100 includes a valve cover 110, a valve tube 120, and a valve needle assembly 130.
  • the valve tube 120 and the valve cover 110 are connected.
  • the valve needle assembly 130 is movably disposed within the valve tube 120 and the valve cover 110.
  • the valve cover 110 is connected to a mounting hole.
  • One end of the valve cover 110 has a valve port, and the side wall of the valve cover 110 has a flow port.
  • the valve needle assembly 130 opens and closes the valve port.
  • the valve seat 200 has a valve cavity 201, a first interface 205, and a second interface 206.
  • the first interface 205, the valve cavity 201, and the flow port are sequentially connected, and the second interface 206 is connected to the valve port.
  • the valve port is open, the first interface 205 and the second interface 206 are connected; when the valve port is closed, the first interface 205 and the second interface 206 are disconnected.
  • valve body 100 and the valve seat 200 are connected by at least two stepped mating structures. Since at least one of the stepped mating structures undergoes extrusion deformation during assembly, it can be ensured that both the first stepped mating structure 310 and the second stepped mating structure 320 can achieve a sealing fit after assembly, thus guaranteeing the sealing effect.
  • This scheme achieves sealing through elastic deformation at the mating position, therefore it does not require very high machining precision, reducing processing costs.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Valve Housings (AREA)

Abstract

一种电动阀，包括阀主体、阀座和密封圈，在阀主体和阀座之间设置密封圈进行密封的基础上，阀主体的外壁和/或安装孔的内壁具有环形凸起，通过环形凸起对阀主体的外壁和安装孔的内壁之间进行密封，在使用密封圈进行软密封的情况下，通过环形凸起增加了至少一道硬密封，从而加强了密封效果，避免阀腔内的冷媒发生泄漏，提高了安全性。并且密封圈相对于环形凸起离阀腔更近，这样密封圈能够对阀腔内的全部或绝大部分冷媒进行阻挡，防止冷媒泄漏，即便冷媒经密封圈泄漏后流至环形凸起的位置，泄漏的也只是少量冷媒，环形凸起面对少量的冷媒能够起到良好的密封效果，从而能够避免冷媒外漏的发生。

Description

电动阀
本申请要求于2024年7月19日提交至中国国家知识产权局、申请号为2024217243777、名称为“电动阀”的专利申请的优先权；本申请要求于2024年10月25日提交至中国国家知识产权局、申请号为2024226037660、名称为“电动阀”的专利申请的优先权。
技术领域
本申请涉及阀门技术领域，具体而言，涉及一种电动阀。
背景技术
电磁阀等电动阀中，包括相互连接的阀主体和阀座，阀主体和阀座之间通常设置密封圈进行密封，以避免阀座内的冷媒泄漏。但是对于密封性要求高的使用环境，例如使用易燃易爆的环保型冷媒的空调器，现有的密封方式可靠性差，存在泄漏风险，影响安全性，不能满足使用需求。
申请内容
本申请提供了一种电动阀，以解决现有技术中的电动阀的阀主体和阀座之间密封性差，影响安全性的问题。
为了解决上述问题，本申请提供了一种电动阀，包括：阀主体和阀座，阀座具有安装孔和阀腔，阀主体可拆卸地安装于安装孔，阀主体的外壁和/或安装孔的内壁具有环形凸起，阀主体的外壁和安装孔的内壁通过环形凸起密封配合；阀主体的外壁和安装孔的内壁之间具有沿轴向间隔设置的固定连接结构和密封圈；其中，环形凸起、密封圈和阀腔依次设置。
进一步地，阀主体包括阀盖，阀盖可拆卸地安装于安装孔，其中，
阀盖具有环形凸起，且阀盖的硬度大于阀座的硬度；
或阀座具有环形凸起，且阀座的硬度大于阀盖的硬度。
进一步地，环形凸起为多个，多个环形凸起在安装孔的径向和/或轴向分布。
进一步地，环形凸起的径向截面为三角形、矩形、梯形或弓形。
进一步地，固定连接结构为螺纹配合结构，阀主体的外壁和安装孔的内壁之间具有螺纹配合结构，环形凸起位于螺纹配合结构和密封圈之间，螺纹配合结构在拧紧后对环形凸起施加压紧力。
进一步地，阀主体包括阀盖，阀盖的外壁和/或安装孔的内壁具有环形凸起，阀盖具有外螺纹，安装孔的内壁具有内螺纹，内螺纹和外螺纹配合并组成螺纹配合结构。
或者，阀主体包括阀盖和压环，阀盖的外壁和/或安装孔的内壁具有环形凸起，压环套设于阀盖且与阀盖过盈配合，且压环和阀盖在轴向限位配合，压环具有外螺纹，安装孔的内壁具有内螺纹，内螺纹和外螺纹配合并组成螺纹配合结构，压环在拧紧后对阀盖施加压力。
进一步地，密封圈位于阀主体的周侧外壁和安装孔的内壁之间。
进一步地，阀主体包括相互连接的第一主体与第二主体，第二主体的端部伸入第一主体内与第一主体连接，密封圈位于第一主体的周侧外壁；第二主体的外壁与阀座之间设有密封件。
进一步地，阀主体的外壁和安装孔的内壁构成第一台阶配合结构，第一台阶配合结构具有环形凸起。
进一步地，阀主体的外壁和安装孔的内壁还构成第二台阶配合结构，第一台阶配合结构和第二台阶配合结构沿安装孔的轴向间隔设置；其中，第二台阶配合结构具有环形凸起或第二台阶配合结构无环形凸起。
进一步地，第一台阶配合结构包括位于阀主体外壁的第一外阶梯面以及位于安装孔内壁的第一内阶梯面，第二台阶配合结构包括位于阀主体外壁的第二外阶梯面以及位于安装孔内壁的第二内阶梯面；
在仅第一台阶配合结构包括环形凸起的情况下，环形凸起位于第一外阶梯面或位于第一内阶梯面，第一外阶梯面与第一内阶梯面通过环形凸起密封配合，第二外阶梯面与第二内阶梯面密封配合；
在仅第二台阶配合结构包括环形凸起的情况下，环形凸起位于第二外阶梯面或位于第二内阶梯面，第二外阶梯面与第二内阶梯面通过环形凸起密封配合，第一外阶梯面与第一内阶梯面密封配合；
在第一台阶配合结构、第二台阶配合结构均包括环形凸起的情况下，第一外阶梯面或第一内阶梯面具有环形凸起，第二外阶梯面或第二内阶梯面具有环形凸起，第一外阶梯面与第一内阶梯面通过环形凸起密封配合，且第二外阶梯面与第二内阶梯面通过环形凸起密封配合。
进一步地，阀主体的外壁和安装孔的内壁之间还具有螺纹配合结构，螺纹配合结构、第一台阶配合结构、第二台阶配合结构、密封圈、阀腔依次设置，或密封圈、第一台阶配合结构、第二台阶配合结构、螺纹配合结构、阀腔依次设置。
进一步地，阀主体的外壁和安装孔的内壁之间还具有螺纹配合结构，螺纹配合结构、第一台阶配合结构、密封圈依次设置；阀主体的外壁和安装孔的内壁之间形成空腔，空腔位于第一台阶配合结构与螺纹配合结构之间，空腔内设置有承接槽。
进一步地，第一外阶梯面上设置有环形凸起，第一外阶梯面和环形凸起为一体结构，或第一内阶梯面上设置有环形凸起，第一内阶梯面和环形凸起为一体结构。
进一步地，第二外阶梯面上设置有环形凸起，第二外阶梯面和环形凸起为一体结构，或第二内阶梯面上设置有环形凸起，第二内阶梯面和环形凸起为一体结构。
进一步地，在第一台阶配合结构内，和/或在第二台阶配合结构内，环形凸起为直径不同的多个，多个环形凸起沿阀主体的径向间隔设置。
进一步地，阀主体与安装孔配合的部分包括沿阀主体轴向直径依次减小的螺纹段、第一台阶段、第二台阶段和密封段，螺纹段和安装孔的内壁螺纹连接，第一台阶配合结构位于第一台阶段和第二台阶段之间，第二台阶配合结构位于第二台阶段和密封段之间，密封段和安装孔的内壁之间设置有密封圈。
进一步地，密封段具有环形密封槽，密封圈位于环形密封槽内；或安装孔的内壁具有环形密封槽，密封圈位于环形密封槽内。
应用本申请的技术方案，提供了一种电动阀，电动阀包括阀主体、阀座和密封圈，阀座具有安装孔和阀腔，阀主体可拆卸地安装于安装孔，阀主体的外壁和/或安装孔的内壁具有环形凸起，阀主体的外壁和安装孔的内壁通过环形凸起密封配合；阀主体的外壁和安装孔的内壁之间具有沿轴向间隔设置的固定连接结构和密封圈，阀主体通过固定连接结构与阀座连接的过程中，使阀主体的环形凸起嵌入至阀座内或阀座的环形凸起嵌入至阀主体内；其中，环形凸起、密封圈和阀腔依次设置。该方案中，在阀主体和阀座之间设置密封圈进行密封的基础上，阀主体的外壁和/或安装孔的内壁具有环形凸起，通过环形凸起对阀主体的外壁和安装孔的内壁之间进行密封，即在使用密封圈进行软密封的情况下，通过环形凸起增加了至少一道硬密封，从而加强了密封效果，避免阀腔内的冷媒发生泄漏，提高了安全性。并且，本方案中，密封圈相对于环形凸起离阀腔更近，这样密封圈能够对阀腔内的全部或绝大部分冷媒进行阻挡，防止冷媒泄漏，即便冷媒经密封圈泄漏后流至环形凸起的位置，但泄漏的也只是少量冷媒，环形凸起面对少量的冷媒，能够起到良好的密封效果，从而能够避免冷媒外漏的发生，因此，本方案中环形凸起、密封圈和阀腔的相对位置设置，也提高了电动阀的密封效果。此种电动阀可适用于密封性要求高的使用环境，例如当冷媒采用高可燃性的R290时，本方案能够避免泄漏，保证R290的使用安全性。
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示出了本申请的实施例一提供的电动阀的结构示意图；
图2示出了图1的局部放大图；
图3示出了图1中的阀盖的示意图；
图4示出了本申请的实施例二提供的电动阀的结构示意图；
图5示出了图4的局部放大图；
图6示出了图4中的阀盖的示意图；
图7示出了本申请的实施例三提供的电动阀的结构示意图；
图8示出了图7的局部放大图；
图9示出了图8的局部放大图；
图10示出了图7中的阀主体在与阀座配合位置的局部放大图；
图11示出了图7中的阀座在与阀主体配合位置的局部放大图。
其中，上述附图包括以下附图标记：
100、阀主体；150、第一主体；160、第二主体；170、密封件；
101、第一外阶梯面；102、环形凸起；103、第二外阶梯面；104、螺纹段；105、
第一台阶段；106、第二台阶段；107、密封段；108、环形密封槽；
110、阀盖；120、阀管；130、阀针组件；140、压环；
200、阀座；201、阀腔；202、第一内阶梯面；203、承接槽；204、第二内阶梯面；
205、第一接口；206、第二接口；
310、第一台阶配合结构；320、第二台阶配合结构；330、螺纹配合结构；340、
密封圈。
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，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅是说明性的，决不作为对本申请及其应用或使用的任何限制。基于本申请中的实施例，本领域普通技术人员在没有作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。
如图1所示，本申请的实施例一提供了电动阀，包括阀主体100、阀座200和密封圈340，阀座200具有安装孔和阀腔201，阀主体100可拆卸地安装于安装孔，阀主体100的外壁和/或安装孔的内壁具有环形凸起102，阀主体100的外壁和安装孔的内壁通过环形凸起102密封配合；阀主体100的外壁和安装孔的内壁之间具有沿轴向间隔设置的固定连接结构和密封圈340；其中，环形凸起102、密封圈340和阀腔201依次设置。
该方案中，在阀主体100和阀座200之间设置密封圈340进行密封的基础上，阀主体100的外壁和/或安装孔的内壁具有环形凸起102，通过环形凸起102对阀主体100的外壁和安装孔的内壁之间进行密封，即在使用密封圈340进行软密封的情况下，通过环形凸起102增加了至少一道硬密封，从而加强了密封效果，避免阀腔201内的冷媒发生泄漏，提高了安全性。阀主体100通过固定连接结构与阀座200连接的过程中，对环形凸起102施加压力，使阀主体100的环形凸起102嵌入至阀座200内，或使阀座200的环形凸起102嵌入至阀主体100内。此外，也可通过使环形凸起102挤压变形的方式增强阀主体100和阀座200之间的密封性能。优选通过使环形凸起102嵌入的方式增强阀主体100和阀座200之间的密封性能。
其中，可以是阀主体100的外壁具有环形凸起102，也即环形凸起102为阀主体100的外壁的一部分；可以是安装孔的内壁具有环形凸起102，也即环形凸起102为安装孔的内壁的一部分；或者，还可以是在阀主体100的外壁和安装孔的内壁分别设置环形凸起102。
并且，本方案中，密封圈340相对于环形凸起102离阀腔201更近，这样密封圈340能够对阀腔201内的全部或绝大部分冷媒进行阻挡，防止冷媒泄漏，即便冷媒经密封圈340泄漏后流至环形凸起102的位置，但泄漏的也只是少量冷媒，环形凸起102面对少量的冷媒，能够起到良好的密封效果，从而能够避免冷媒外漏的发生。因此，本方案中环形凸起102、密封圈340和阀腔201的相对位置设置，也提高了电动阀的密封效果。此种电动阀可适用于密封性要求高的使用环境，例如当冷媒采用高可燃性的R290时，本方案能够避免泄漏，保证R290的使用安全性。
其中，阀主体100包括阀盖110，阀盖110可拆卸地安装于安装孔。在一个具体实施例中，阀盖110具有环形凸起102，且阀盖110的硬度大于阀座200的硬度；或者在其他实施例中，阀座200具有环形凸起102，且阀座200的硬度大于阀盖110的硬度。
即阀盖110和阀座200之间具有硬度差，环形凸起102位于硬度大的结构。这样在将阀盖110和阀座200装配后，环形凸起102在压力作用下对与其接触的硬度小的结构施加压力，使得硬度小的结构在接触位置产生变形，从而增大了与环形凸起102的接触面积，提高装配后的密封效果。例如，阀盖110采用不锈钢材质，环形凸起102位于阀盖110，阀座200采用铝合金材质。
如图2和图3所示，环形凸起102为一个。在其他实施例中，环形凸起102也可设置为多个，多个环形凸起102在安装孔的径向和/或轴向分布，通过多个环形凸起102，可进一步增加密封效果，防止电动阀泄漏。
其中，环形凸起102的径向截面可以为三角形、矩形、梯形或弓形等形状。这些不同形状的环形凸起102，均能够在装配后与对应的面充分接触，从而实现密封。
如图1所示，固定连接结构为螺纹配合结构330。阀主体100的外壁和安装孔的内壁之间具有螺纹配合结构330，环形凸起102位于螺纹配合结构330和密封圈340之间，螺纹配合结构330在拧紧后对环形凸起102施加压紧力。
通过螺纹配合结构330，实现了阀主体100和阀座200的螺纹连接，方便拆装。并且，在螺纹拧紧的过程中，通过施加足够的力矩，在阀主体100的外壁和安装孔的内壁之间的配合面相互压紧，从而将环形凸起102压紧，实现了环形凸起102所在位置的密封。
如图1至图3所示，在实施例一中，阀主体100包括阀盖110，阀盖110的外壁和/或安装孔的内壁具有环形凸起102，阀盖110具有外螺纹，安装孔的内壁具有内螺纹，内螺纹和外螺纹配合并组成螺纹配合结构330。即在阀盖110上设置外螺纹，实现与阀座200的连接。
在本方案中，阀主体100的外壁和安装孔的内壁构成第一台阶配合结构310，第一台阶配合结构310具有环形凸起102。通过第一台阶配合结构310，可使得阀主体100和阀座200在装配时准确定位。通常的台阶配合结构的两个相互配合的面为平面，由于加工和装配误差，两个配合平面难以充分接触，因此在台阶配合结构的位置有泄漏风险。本方案中，在第一台阶配合结构310内设置环形凸起102，这样在两个配合平面装配后，一个平面上的环形凸起102由于宽度小，在压力作用下能够与另一个平面充分接触，实现了第一台阶配合结构310的可靠的密封。密封圈340位于阀主体100的周侧外壁和安装孔的内壁之间，密封圈340可加强阀主体100与阀座200连接的牢固性。
阀主体100包括相互连接的第一主体150与第二主体160，第二主体160的端部伸入第一主体150内与第一主体150连接，第一主体150与第二主体160可通过过盈固定连接，也可过盈配合后焊接。密封圈340位于第一主体150的周侧外壁。本文中的周侧外壁指围绕一周的环形外壁。第二主体160的外壁与阀座200之间设有密封件170，密封件170避免阀口关闭时，冷媒从阀腔201泄漏至阀座200外。
或者，如图4至6所示，在实施例二中，与实施例一不同的是，阀主体100包括阀盖110和压环140，阀盖110的外壁和/或安装孔的内壁具有环形凸起102，压环140套设于阀盖110且与阀盖110过盈配合，且压环140和阀盖110在轴向限位配合，压环140具有外螺纹，安装孔的内壁具有内螺纹，内螺纹和外螺纹配合并组成螺纹配合结构330，压环140在拧紧后对阀盖110施加压力。在装配时，通过拧紧压环140对阀盖110施加朝向阀腔201的力，从而对环形凸起102施加压力，将环形凸起102压紧，实现密封。阀盖110和压环140过盈配合后组装为一个整体，该整体与安装孔的内壁通过螺纹配合结构330螺纹连接。
如图7至图11所示，与上述实施例不同的是，在实施例三中，阀主体100的外壁和安装孔的内壁还构成第二台阶配合结构320，第一台阶配合结构310和第二台阶配合结构320沿安装孔的轴向间隔设置；其中，第二台阶配合结构320具有环形凸起102或第二台阶配合结构320无环形凸起102。
在该方案中，阀主体100和阀座200的连接位置通过至少两个台阶配合结构进行连接，由于其中的至少一个台阶配合结构中设置有环形凸起102，通过环形凸起102可保证装配后第一台阶配合结构310和第二台阶配合结构320均能够密封配合，保证了密封效果。此种方案是通过在配合位置设置环形凸起102的方式实现了密封，因此不需要很高的加工精度就可实现，降低了加工成本。该电动阀可以为电磁阀或电子膨胀阀等类型的阀。
其中，由于环形凸起102的截面尺寸小，与采用平面的阶梯结构直接密封相比，环形凸起102容易与对应的结构接触并实现密封。并且，环形凸起102在受力时容易发生变形，在变形后与对应的结构接触更充分，密封效果好。
其中，由于环形凸起102的截面尺寸小，与采用平面的阶梯结构直接密封相比，环形凸起102容易与对应的结构接触并实现密封。并且，环形凸起102在受力时容易发生变形，在变形后与对应的结构接触更充分，密封效果好。
其中，阀主体100的外壁和安装孔的内壁之间还具有螺纹配合结构330，螺纹配合结构330、第一台阶配合结构310、第二台阶配合结构320、密封圈340、阀腔201依次设置，或密封圈340、第一台阶配合结构310、第二台阶配合结构320、螺纹配合结构330、阀腔201依次设置。
在将螺纹旋紧或旋松的过程中，由于加工误差和摩擦力，内螺纹和外螺纹之间会产生碎屑，外部的碎屑也可能进入内螺纹和外螺纹之间的间隙，现有技术中，内螺纹和外螺纹之间的碎屑在重力或气流作用下会进入密封圈340所在的位置，影响密封圈340的密封效果，可能引起泄漏。
本方案中，上述两种设置方式，将螺纹配合结构330和密封圈340间隔开，避免了碎屑从螺纹配合结构330进入密封圈340所在的位置，从而避免了碎屑影响密封圈340的密封性。
如图8和图9所示，阀主体100的外壁和安装孔的内壁之间还具有螺纹配合结构330，螺纹配合结构330、第一台阶配合结构310、密封圈340依次设置；阀主体100的外壁和安装孔的内壁之间形成空腔，空腔位于第一台阶配合结构310与螺纹配合结构330之间，空腔内设置有承接槽203。
这样螺纹配合结构330内的碎屑掉落时，会进入到承接槽203，通过承接槽203进行收集，防止了碎屑进入到第一台阶配合结构310的位置，从而进一步防止碎屑进入密封圈340所在的位置。
在一个具体实施例中，螺纹配合结构330、第一台阶配合结构310、第二台阶配合结构320、密封圈340从上到下依次设置；阀主体100的外壁具有环形的第一外阶梯面101，安装孔的内壁具有与第一外阶梯面101对应的第一内阶梯面202，第一内阶梯面202具有围绕第一外阶梯面101设置的承接槽203，承接槽203用于承接从螺纹配合结构330掉落的碎屑。
这样螺纹配合结构330内的碎屑在重力作用下掉落时，会进入到承接槽203，通过承接槽203进行收集，防止了碎屑进入到第一外阶梯面101的位置，从而进一步防止碎屑进入密封圈340所在的位置。
如图8至图11所示，在一个具体实施例中，阀主体100的外壁具有环形的第一外阶梯面101，第一外阶梯面101上设置有环形凸起102，第一外阶梯面101和环形凸起102为一体结构，安装孔的内壁具有与第一外阶梯面101对应的第一内阶梯面202；在装配时，第一外阶梯面101和第一内阶梯面202将环形凸起102挤压变形以实现密封；第一台阶配合结构310包括第一外阶梯面101、环形凸起102和第一内阶梯面202。
环形凸起102为凸出结构并且宽度较小，在受到挤压时容易发生变形，从而可与第一内阶梯面202充分接触，实现可靠密封；并且，通过环形凸起102的变形，避免了第二台阶配合结构320有配合间隙，使得第二台阶配合结构320也能够可靠密封。
或者，在其他实施例中，阀主体100的外壁具有环形的第一外阶梯面101，安装孔的内壁具有与第一外阶梯面101对应的第一内阶梯面202，第一内阶梯面202上设置有环形凸起102，第一内阶梯面202和环形凸起102为一体结构；在装配时，第一外阶梯面101和第一内阶梯面202将环形凸起102挤压变形以实现密封；第一台阶配合结构310包括第一外阶梯面101、环形凸起102和第一内阶梯面202。
环形凸起102可以设置为直径不同的多个，多个环形凸起102沿阀主体100的径向间隔设置，通过多个环形凸起102可以提高密封效果。
进一步地，阀主体100的外壁具有环形的第二外阶梯面103，安装孔的内壁具有与第二外阶梯面103对应的第二内阶梯面204；在装配时，第二外阶梯面103和第二内阶梯面204抵接以实现密封；第二外阶梯面103和第二内阶梯面204组成第二台阶配合结构320。通过第二外阶梯面103和第二内阶梯面204的抵接，保证了可靠密封。
如图10所示，阀主体100与安装孔配合的部分包括沿阀主体100的轴向直径依次减小的螺纹段104、第一台阶段105、第二台阶段106和密封段107，螺纹段104和安装孔的内壁螺纹连接，第一台阶配合结构310位于第一台阶段105和第二台阶段106之间，第二台阶配合结构320位于第二台阶段106和密封段107之间，密封段107和安装孔的内壁之间设置有密封圈340。
通过多段结构的设置，使得阀主体100与安装孔配合的部分容易加工、形成了两个台阶配合结构，并且方便插入到阀座200内。
其中，密封段107具有环形密封槽108，密封圈340位于环形密封槽108内；或安装孔的内壁具有环形密封槽108，密封圈340位于环形密封槽108内。
如图7所示，阀主体100包括阀盖110、阀管120和阀针组件130，阀管120和阀盖110连接，阀针组件130活动设置在阀管120和阀盖110内，阀盖110和安装孔配合连接，阀盖110的一端具有阀口，阀盖110的侧壁具有流通口，阀针组件130开闭阀口；阀座200具有阀腔201、第一接口205和第二接口206，第一接口205、阀腔201和流通口依次连通，第二接口206和阀口连通。在阀口打开的情况下，第一接口205和第二接口206连通，在阀口关闭的情况下，第一接口205和第二接口206断开。
上述方案中，阀主体100和阀座200的连接位置通过至少两个台阶配合结构进行连接，由于其中的至少一个台阶配合结构在装配时发生挤压变形，可保证装配后第一台阶配合结构310和第二台阶配合结构320均能够密封配合，保证了密封效果。此种方案是通过在配合位置弹性变形的方式实现了密封，因此不需要很高的加工精度就可实现，降低了加工成本。
以上所述仅为本方案的可选实施例而已，并不用于限制本方案，对于本领域的技术人员来说，本方案可以有各种更改和变化。凡在本方案的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本方案的保护范围之内。

Claims (10)

  1. 一种电动阀，其特征在于，包括：
    阀主体(100)和阀座(200)，所述阀座(200)具有安装孔和阀腔(201)，所述阀主体(100)可拆卸地安装于所述安装孔；所述阀主体(100)的外壁具有环形凸起(102)，或所述安装孔的内壁具有环形凸起(102)，或所述阀主体(100)的外壁和所述安装孔的内壁具有环形凸起(102)；所述阀主体(100)的外壁和所述安装孔的内壁通过所述环形凸起(102)密封配合；
    所述阀主体(100)的外壁和所述安装孔的内壁之间具有沿轴向间隔设置的固定连接结构和密封圈(340)；
    其中，所述环形凸起(102)、所述密封圈(340)和所述阀腔(201)依次设置。
  2. 根据权利要求1所述的电动阀，其特征在于，所述阀主体(100)包括阀盖(110)，所述阀盖(110)可拆卸地安装于所述安装孔，其中，
    所述阀盖(110)具有所述环形凸起(102)，且所述阀盖(110)的硬度大于所述阀座(200)的硬度；
    或所述阀座(200)具有所述环形凸起(102)，且所述阀座(200)的硬度大于所述阀盖(110)的硬度。
  3. 根据权利要求1所述的电动阀，其特征在于，所述环形凸起(102)为多个，多个所述环形凸起(102)在所述安装孔的径向和/或轴向分布。
  4. 根据权利要求1所述的电动阀，其特征在于，所述环形凸起(102)的径向截面为三角形、矩形、梯形或弓形。
  5. 根据权利要求1所述的电动阀，其特征在于，所述固定连接结构为螺纹配合结构(330)，所述阀主体(100)的外壁和所述安装孔的内壁之间具有所述螺纹配合结构(330)，所述环形凸起(102)位于所述螺纹配合结构(330)和所述密封圈(340)之间，所述螺纹配合结构(330)在拧紧后对所述环形凸起(102)施加压紧力。
  6. 根据权利要求5所述的电动阀，其特征在于，所述阀主体(100)包括阀盖(110)，所述阀盖(110)的外壁和/或所述安装孔的内壁具有所述环形凸起(102)，所述阀盖(110)具有外螺纹，所述安装孔的内壁具有内螺纹，所述内螺纹和所述外螺纹配合并组成所述螺纹配合结构(330)。
  7. 根据权利要求5所述的电动阀，其特征在于，所述阀主体(100)包括阀盖(110)和压环(140)，所述阀盖(110)的外壁和/或所述安装孔的内壁具有所述环形凸起(102)，所述压环(140)套设于所述阀盖(110)且与阀盖(110)过盈配合，且所述压环(140)和所述阀盖(110)在轴向限位配合，所述压环(140)具有外螺纹，所述安装孔的内壁具有内螺纹，所述内螺纹和所述外螺纹配合并组成所述螺纹配合结构(330)，所述压环(140)在拧紧后对所述阀盖(110)施加压力。
  8. 根据权利要求1-7任一项所述的电动阀，其特征在于，所述密封圈(340)位于所述阀主体(100)的周侧外壁和所述安装孔的内壁之间。
  9. 根据权利要求1-7任一项所述的电动阀，其特征在于，所述阀主体(100)包括相互连接的第一主体(150)与第二主体(160)，所述第二主体(160)的端部伸入所述第一主体(150)内与所述第一主体(150)连接，所述密封圈(340)位于所述第一主体(150)的周侧外壁；所述第二主体(160)的外壁与所述阀座(200)之间设有密封件(170)。
  10. 根据权利要求1所述的电动阀，其特征在于，所述阀主体(100)的外壁和所述安装孔的内壁构成第一台阶配合结构(310)，所述第一台阶配合结构(310)具有所述环形凸起(102)。
PCT/CN2025/109415 2024-07-19 2025-07-18 电动阀 Pending WO2026017167A1 (zh)

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