WO2023198139A1 - 带视液镜的电磁阀 - Google Patents

带视液镜的电磁阀 Download PDF

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Publication number
WO2023198139A1
WO2023198139A1 PCT/CN2023/087976 CN2023087976W WO2023198139A1 WO 2023198139 A1 WO2023198139 A1 WO 2023198139A1 CN 2023087976 W CN2023087976 W CN 2023087976W WO 2023198139 A1 WO2023198139 A1 WO 2023198139A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
sight glass
chamber
liquid outlet
solenoid valve
Prior art date
Application number
PCT/CN2023/087976
Other languages
English (en)
French (fr)
Inventor
俞舟
马彦婷
康志军
Original Assignee
浙江盾安人工环境股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202220845339.1U external-priority patent/CN217977694U/zh
Priority claimed from CN202220843621.6U external-priority patent/CN217381886U/zh
Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Publication of WO2023198139A1 publication Critical patent/WO2023198139A1/zh

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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
    • 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
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

Definitions

  • the present application relates to the field of valve technology, and in particular to a solenoid valve with a sight glass.
  • the sight glass is an important component in the refrigeration system loop. It adopts high-temperature sintering process of glass and steel.
  • the sight glass product has beautiful appearance, good strength and high glass transparency.
  • the sight glass is used in various refrigeration equipment, compressors, etc. When used mechanically, the working principle of the sight glass is to visually observe the refrigerant in the system through the wide-angle sight glass, so it is easy to see bubbles or flash gases in the system and determine whether the amount of refrigerant is appropriate and needs to be filled.
  • the indicator element of the sight glass is highly sensitive to moisture and changes color as the moisture content within the system changes.
  • valve and the sight glass used in the refrigeration system loop are two separate products. During use, the valve and the sight glass need to be connected in series and welded, and then the valve and the sight glass need to be connected in series and welded. The whole body is welded on the pipe, which not only has a large number of welding points, cumbersome process, but also takes up a lot of space.
  • a solenoid valve with a sight glass including: a valve body assembly, an electromagnetic assembly and a sight glass.
  • the valve body assembly includes a valve seat, and the valve seat is a valve cavity.
  • the electromagnetic component has one end as a movable piston in the inner cavity of the valve seat, and the piston keeps the fluid in the valve cavity in a flowing state or disconnected state.
  • the sight glass is arranged on the valve seat; the sight glass and the valve seat are integrated.
  • the two ends of the valve seat are respectively a liquid inlet and a liquid outlet, and the sight glass is disposed at the liquid inlet or the liquid outlet.
  • the sight fluid chamber of the sight glass is connected to the valve chamber.
  • the valve body assembly further includes a valve cover disposed on the valve seat, the valve chamber has a liquid inlet chamber and a liquid outlet chamber; each end of the valve seat has a valve cover connected to the valve chamber. Clear liquid inlet and outlet.
  • the liquid inlet chamber is a chamber from the liquid inlet to the valve port, and the liquid outlet chamber is from the valve port to the liquid outlet. chamber; the liquid inlet chamber is connected to the liquid outlet chamber through a valve port.
  • the sight glass includes a base and a lens.
  • a sight fluid chamber is provided in the base.
  • the lens is provided in the base.
  • the sight fluid chamber and the fluid outlet chamber are and/or connected to the liquid inlet chamber.
  • a mounting bracket is provided in the visual fluid chamber, and the mounting bracket is used to install test strips.
  • the base is provided with a first step surface
  • the outer edge of the base is provided with a second step surface
  • the lens is installed on the first step surface and the second step surface. in the accommodation space.
  • the bottom of the accommodation chamber has a through hole, the through hole is connected with the liquid outlet, and the liquid outlet chamber is an L-shaped tubular space structure.
  • the sight glass is provided with an inlet on a side close to the liquid outlet, and an outlet is provided on a side of the sight glass away from the liquid outlet; the inlet and the outlet are both It is connected with the visual fluid chamber; the inlet is connected with the liquid outlet.
  • the axes of the liquid inlet, the liquid outlet, the inlet and the outlet are all on the same straight line.
  • the valve port faces the electromagnetic assembly; when the valve port conflicts with the piston, the liquid outlet chamber and the liquid inlet chamber are disconnected; when the piston moves away from When the valve port is opened, the liquid outlet chamber and the liquid inlet chamber are connected.
  • the electromagnetic assembly includes: a stationary iron core, a first spring, a moving iron core, a second spring and a piston arranged in sequence toward the valve port; the stationary iron core, the first spring, the moving iron core The second spring is arranged in the sleeve, and the piston is connected to the moving iron core through the second spring.
  • the piston includes: a transmission rod, an upper gasket, a diaphragm and a lower gasket.
  • the upper gasket and the lower gasket are rigid sheets, and the diaphragm is an elastic sheet; the upper gasket, the diaphragm and the lower gasket are sequentially coaxially arranged on the transmission rod close to the valve port in the direction toward the valve port. The other end of the transmission rod away from the valve port is in contact with the second spring.
  • the diameter of the upper gasket matches the outer diameter of the moving iron core
  • the diameter of the lower gasket is smaller than the inner diameter of the valve port
  • the diameter of the diaphragm is larger than the outer diameter of the valve port
  • the edge of the diaphragm is placed on the valve seat, and the edge of the diaphragm is in contact with the valve cover, so that a sealed chamber is formed between the diaphragm and the valve cover.
  • Figure 1 is a structural view of a solenoid valve with a sight glass according to one or more embodiments.
  • FIG. 2A is a cross-sectional view of a solenoid valve with a sight glass according to one or more embodiments.
  • FIG. 2B is a partial enlarged view of the cross-sectional view of the solenoid valve with a sight glass in FIG. 2A .
  • Figure 3 is a structural view of the valve seat and the sight glass in a solenoid valve with a sight glass according to one or more embodiments.
  • Figure 4 is a cross-sectional view of the valve seat and the sight glass in a solenoid valve with a sight glass according to one or more embodiments.
  • Figure 5 is a structural diagram of a solenoid valve with a sight glass according to one or more embodiments.
  • Figure 6 is a structural diagram of a valve seat in a solenoid valve with a sight glass according to one or more embodiments.
  • FIG. 7 is a cross-sectional view of a solenoid valve with a sight glass according to one or more embodiments.
  • FIG. 8 is a longitudinal cross-sectional view of a solenoid valve with a sight glass according to one or more embodiments.
  • FIG. 9 is a partial enlarged view of the cross-sectional view of the solenoid valve with a sight glass in FIG. 8 .
  • Casing; 52 static iron core; 53, first spring; 54, moving iron core; 541, first accommodation chamber; 542, second accommodation chamber; 55, second spring; 56, piston; 561, transmission rod; 562, upper pad piece; 563, diaphragm; 5631, sealed chamber; 564, lower gasket; 565, latch; 57, support piece.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection In this application, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated into one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch.
  • the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
  • "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
  • Figures 1, 2A and 5 show structural views of the solenoid valve 100 with a sight glass in an embodiment of the present application.
  • the embodiment of the present application provides a solenoid valve with a sight glass.
  • the solenoid valve 100 includes: a valve body assembly 1, a sight glass 12 and an electromagnetic assembly 50.
  • the sight glass 12, the valve body assembly 1 and the electromagnetic assembly 50 are integrated and processed in an integrated manner.
  • the valve body assembly 1 includes a valve seat 10 and a valve cover 20 disposed on the valve seat 10 . There is also a sealing member between the valve cover 20 and the valve seat 10 to prevent the medium in the valve seat 10 from flowing out from the gap between the valve cover 20 and the valve seat 10, which can improve the sealing reliability of the valve body assembly 1.
  • the seal is a Teflon ring, that is, made of Teflon material.
  • the above-mentioned solenoid valve 100 with a sight glass uses the sight glass 12 and the valve seat 10 as an integrated structure.
  • the medium conditions can be directly observed on the solenoid valve 100, which simplifies the assembly process, reduces production costs, and improves product integration. degree, reduction system Unify the number of valves used and simplify the system pipeline layout.
  • the two ends of the valve seat 10 are respectively provided with a liquid inlet 13 and a liquid outlet 14.
  • the liquid inlet 13 is connected to a liquid inlet pipe 30.
  • the valve chamber 15 includes a liquid outlet chamber 140 and a liquid inlet chamber 130 .
  • the valve seat 10 is provided with an accommodating chamber 11 , which has a valve port 110 facing the valve cover 20 .
  • the bottom of the accommodating chamber 11 has a through hole 111 communicating with the liquid outlet 14 .
  • the valve port 110 communicates with the liquid inlet 13 and the liquid outlet 14 .
  • the liquid outlet 14 is connected with the liquid outlet pipe 40 , and the liquid inlet 13 is connected with the liquid inlet pipe 30 .
  • the portion of the valve chamber 15 from the liquid inlet 13 to the valve port 110 is the liquid inlet chamber 130, and the portion of the valve chamber 15 from the valve port 110 to the liquid outlet 14 is the liquid outlet chamber 140.
  • the valve port 110 is adapted to the electromagnetic assembly 50, and the electromagnetic assembly 50 controls the opening and closing state of the valve port 110.
  • the valve seat 10 may be made of brass material with high ductility, or may be made of steel material through a machining process.
  • the sight glass 12 is disposed at the end of the solenoid valve 100 with a sight glass.
  • the sight glass 12 is located at the liquid outlet 14 or the liquid inlet 13 .
  • the sight glass 12 and the valve seat 10 are integrated.
  • the sight glass 12 is disposed at the liquid outlet 14 .
  • the sight glass 12 as a whole has a cylindrical structure with an upward opening.
  • the hollow space of the sight glass 12 is the sight liquid chamber 120 .
  • An inlet 123 and an outlet 124 are provided on both sides of the sight glass 12 respectively.
  • the inlet 123 is connected with the liquid outlet 14 , that is, the sight liquid chamber 120 is connected with the liquid outlet chamber 140 .
  • the sight glass 12 includes a base 122 and a lens 121 installed in the base 122 .
  • the upper end of the sight glass 12 extends upward to form an annular base 122.
  • the central space of the base 122 is a sight window 1220 connected with the sight chamber 120; a first step surface 1221 is provided in the base 122.
  • a second step surface 1222 is provided on the outer edge of the seat 122 , and the lens 121 is installed in the accommodation space between the first step surface 1221 and the second step surface 1222 .
  • the circulation state of the medium and the liquid level of the medium in the visual fluid chamber 120 can be directly observed through the lens 121, thereby determining whether the amount of medium needs to be filled.
  • the lens 121 is arranged horizontally in the base 122 to avoid refraction of light caused by the tilted arrangement of the lens 121 and making it difficult to correctly judge the liquid level of the medium in the sight glass 12 .
  • the liquid outlet chamber 140 is an L-shaped tubular space structure, so that the medium entering the liquid outlet chamber 140 flows directly to the sight glass 12 along the liquid outlet chamber 140, thereby preventing the medium from entering a special-shaped or complex chamber and causing turbulence or vortex, resulting in It is difficult to observe the circulation state of the medium through the sight glass 12 .
  • the sight glass 120 is disposed at the liquid inlet 13 or the liquid outlet 14 of the valve body assembly, so that the medium directly enters the sight glass 12 after exiting the liquid chamber 140, and the valve cavity can be observed through the sight glass.
  • the flow of all fluids in the valve facilitates observation of the circulation status of the medium and reduces flow monitoring errors.
  • the size of the sight glass 120 is not limited by the size of the valve body assembly 1 .
  • the liquid inlet 13, the liquid outlet 14, the inlet 123, and the outlet 124 are arranged on the same axis to prevent the medium from forming turbulence or vortex in the sight chamber 120 after entering the sight glass 12, making it difficult to observe the circulation state of the medium.
  • the outlet 124 is connected with the liquid outlet pipe 40 .
  • the horizontal height of the lens 121 is not higher than the horizontal height of the valve cover 20, so that the overall structure of the present application is Adjustable, beautiful appearance.
  • the sight glass 12 is disposed in the middle of the solenoid valve 100 with a sight glass.
  • the sight glass 12 includes a base 122 and a lens 121.
  • the outer wall of one side of the valve seat 10 extends outward from the base 122.
  • the base 122 has a sight window 1220 leading to the liquid inlet chamber 130.
  • the base 122 A visual fluid chamber 120 is provided inside; a first step surface 1221 is provided in the base 122, a second step surface 1222 is provided on the outer edge of the base, and the lens 121 is installed on the first step surface 1221; the visual fluid chamber 120 is connected with the liquid inlet chamber 130, so that the circulation state of the medium, the liquid level of the medium in the valve body assembly 1, etc. can be directly observed through the lens 121, thereby determining whether the amount of medium is appropriate and whether filling is required.
  • the solenoid valve 100 By disposing the sight glass 12 on the valve seat 10 and connecting the inner cavity of the sight glass 12 with the valve chamber 15, the solenoid valve 100 has better overall balance performance, a stable center of gravity, and is easy to process; at the same time, the shell part of the sight glass 12 is connected with the solenoid valve 100.
  • the shells of the valve 100 are partially overlapped, so that the shell of the sight glass 12 can borrow the shell of the solenoid valve 100, thereby reducing product weight and saving costs.
  • the lens 121 is installed in the base 122 by riveting; the edge of the base 122 is flanged toward the center of the lens 121 by external force to ensure that the base 122 has sufficient preload force for the lens 121 to prevent the lens 121 from being It is detached from the base 122 and ensures the sealing of the visual fluid chamber 120 .
  • the lens 121 is made of glass material (such as soda-lime glass or high borosilicate glass) or other transparent materials in the field such as resin material.
  • the lens 121 may be fully transparent or partially transparent, and is not limited here.
  • the sight fluid chamber 120 is provided with a mounting bracket 125.
  • the mounting bracket 125 is used to install test strips.
  • the test strips can be directly observed through the lens 121; the test strips are used for measurement.
  • the color of the test paper changes accordingly under different moisture contents of the medium.
  • the moisture content of the medium can be roughly known.
  • the opening of the valve port 110 faces the valve cover 20; the valve cover 20 is provided with a mounting hole at a position corresponding to the valve port 110, and a sleeve 51 is provided in the mounting hole.
  • the sleeve 51 One end of the sleeve 51 faces the valve port 110 and is installed in the installation hole, so that the inside of the sleeve 51 communicates with the valve cavity 15 .
  • the fitting and mating parts of the valve cover 20 and the valve seat 10 are connected by screws/bolts, etc.
  • the electromagnetic assembly 50 includes a piston 56 movably disposed in the valve seat 10 .
  • the piston 56 can control the opening and closing of the valve port 110 .
  • the piston 56 is in contact with the valve port 110, the liquid outlet chamber 140 and the liquid inlet chamber 130 are disconnected; when the piston 56 is away from the valve port 110, the liquid outlet chamber 140 and the liquid inlet chamber 130 are connected.
  • the electromagnetic assembly 50 also includes: a sleeve 51, and a stationary iron core 52, a first spring 53, a moving iron core 54 and a second spring 55 arranged in sequence from top to bottom inside the sleeve 51.
  • the static iron core 52 is fixedly arranged at one end of the sleeve 51 away from the valve seat 10.
  • the moving iron core 54 can move freely in the direction closer to or away from the static iron core 52 inside the sleeve 51.
  • Moving iron core 54 relative It moves on the static iron core 52 and attracts the static iron core 52 .
  • the first spring 53 is in contact between the static iron core 52 and the moving iron core 54.
  • the moving iron core 54 has an open first accommodation cavity 541 at one end facing the static iron core 52.
  • the first spring 53 is partially accommodated in the natural state.
  • the first accommodation cavity 541 guides the expansion and contraction of the first spring 53 and prevents the first spring 53 from moving in the radial direction of the sleeve 51 .
  • the moving iron core 54 moves toward the stationary iron core 52 until it contacts the stationary iron core 52 , the first spring 53 is gradually compressed until it is completely accommodated in the first accommodation cavity 541 .
  • One end of the second spring 55 is in contact with the moving iron core 54 , and the other end extends to the outside of the sleeve 51 and is in contact with the piston 56 .
  • One end of the moving iron core 54 facing the valve port 110 has an open second accommodation cavity 542.
  • the second spring 55 is partially accommodated in the second accommodation cavity 542 in a natural state.
  • the moving iron core 54 moves away from the stationary iron core 52 When it abuts with the piston 56 , the second spring 55 is gradually compressed until it is completely accommodated in the second accommodation cavity 542 .
  • the elastic coefficient of the second spring 55 is smaller than the elastic coefficient of the first spring 53 , so that when the static iron core 52 is in a power-off state, the first spring 53 acts on the moving iron core 54 and compresses the second spring 55 to the second accommodation cavity 542 Inside, the moving iron core 54 abuts the piston 56 until the piston 56 moves to the valve port 110, the piston 56 blocks the valve port 110, and the liquid inlet chamber 130 and the liquid outlet chamber 140 are disconnected.
  • the magnetic force received by the moving iron core 54 is greater than the elastic force of the first spring 53, and the moving iron core 54 moves toward the static iron core 52 until it contacts the static iron core 52.
  • the piston 56 compresses the second spring 55 under the action of the medium pressure in the liquid inlet chamber 130 and moves away from the valve port 110 , so that the liquid inlet chamber 130 and the liquid outlet chamber 140 are connected.
  • the piston 56 is a diaphragm piston.
  • the diaphragm piston includes: a transmission rod 561, an upper gasket 562, a diaphragm 563 and a lower gasket 564.
  • the upper gasket 562 , the diaphragm 563 and the lower gasket 564 are arranged coaxially in sequence toward the valve port 110 , and the transmission rod 561 is close to the end of the valve port 110 .
  • the latch 565 passes through the lower gasket 564 , the diaphragm 563 and the upper gasket 562 in sequence to fix the lower gasket 564 , the diaphragm 563 and the upper gasket 562 at the end of the transmission rod 561 .
  • the other end of the transmission rod 561 away from the valve port 110 is in contact with the second spring 55; the diameter of the upper gasket 562 matches the outer diameter of the moving iron core 54; the diameter of the lower gasket 564 is smaller than the inner diameter of the valve port 110 to facilitate the use of a diaphragm.
  • the lower gasket 564 When 563 is in contact with the valve port 110, the lower gasket 564 is accommodated in the valve port 110; the diameter of the diaphragm 563 is larger than the outer diameter of the valve port 110, so that the diaphragm 563 can fully block the valve port 110.
  • the upper gasket 562 and the lower gasket 564 are rigid sheets, and the diaphragm 563 is an elastic sheet. The upper gasket 562 and the lower gasket 564 clamp the diaphragm 563 to prevent excessive deformation of the diaphragm 563.
  • the moving iron core 54 overcomes the elastic force of the first spring 53 due to the magnetic force and moves toward the static iron core 52 until it abuts the static iron core 52 .
  • the diaphragm 563 deforms and the diaphragm 563 moves the piston away from the valve port 110 , and the liquid inlet chamber 130 and the liquid outlet chamber 140 are connected.
  • the static iron core 52 is in a power-off state, the magnetic force of the static iron core 52 disappears, and the moving iron core 54 is moved downwards by the elastic force of the first spring 53.
  • the plug 56 moves in the direction, and the second spring 55 is fully accommodated in the second accommodation cavity 542 at the lower end of the moving iron core 54 due to force.
  • the moving iron core 54 directly abuts the upper gasket 562, and the diaphragm 563 is driven by the upper gasket 562 to
  • the valve port 110 moves until it fits the valve port 110, and the liquid inlet chamber 130 and the liquid outlet chamber 140 are disconnected.
  • the edge of the diaphragm 563 is set on the valve seat 10 and fitted with the valve cover 20, so that a sealed chamber 5631 is formed between the diaphragm 563 and the valve cover 20.
  • the diaphragm 563 is made of metal, and the metal material of the diaphragm 563 is stainless steel or manganese steel, thereby increasing the strength of the pressure that the diaphragm 563 bears at the valve port 110 .
  • the surface of the diaphragm 563 is also covered with a sealing coating, and the sealing layer is a non-metallic coating, which helps to improve the sealing performance of the diaphragm 563 and reduce its leakage rate.
  • the non-metallic layer can be either Teflon coating or silicone rubber coating.
  • an annular support piece 57 is provided under the diaphragm 563.
  • the support piece 57 is a rigid piece.
  • the inner ring diameter of the support piece 57 is larger than the outer diameter of the valve port 110.
  • the support piece 57 The outer ring diameter matches the diameter of the diaphragm 563.

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

Abstract

一种带视液镜的电磁阀(100)。该带视液镜的电磁阀(100)包括：阀体组件(1)，其包括阀座(10)，阀座(10)内为阀腔(15)；电磁组件(50)，其一端为阀座(10)内腔可活动的活塞(56)，通过活塞(56)使阀腔(15)内的流体保持流通状态或断开状态；视液镜(12)，其设置于阀座(10)；视液镜(12)与阀座(10)为一体式。

Description

带视液镜的电磁阀
相关申请
本申请要求2022年4月13日申请的，申请号为202220845339.1，名称为“带视液镜的电磁阀”的中国专利申请的优先权，以及2022年4月13日申请的，申请号为202220843621.6，名称为“带视液镜的电磁阀”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及阀门技术领域，特别是涉及一种带视液镜的电磁阀。
背景技术
视液镜是制冷系统回路中的一个重要部件，采用玻璃与钢件高温烧结工艺，视液镜产品外形美观，强度好，玻璃透明度高，视液镜用于在各种制冷设备、压缩机等机械上使用，视液镜的工作原理为通过广角的视镜目视系统中的制冷剂，因此很容易看到系统内的气泡或闪蒸气体，确定冷媒用量是否适当需要填充。目视镜的指示器元件对水分高度灵敏，并随着系统内的水分含量的变化改变颜色。
然而，传统技术中制冷系统回路使用的阀门和视液镜为单独两个产品，在使用过程中，需要将阀门和视液镜串联并焊接使用，然后再将阀门与视液镜串联并焊接后的整体焊接在管道上，这样不仅焊点数量多、工艺繁琐，且占用空间大。
发明内容
根据本申请的各种实施例，提供一种带视液镜的电磁阀，包括：阀体组件、电磁组件和视液镜。
阀体组件，其包括阀座，阀座内为阀腔。
电磁组件，其一端为阀座内腔可活动的活塞，通过所述活塞使阀腔内的流体保持流通状态或断开状态。
视液镜，其设置于阀座；视液镜与阀座为一体式。
在一实施例中，所述阀座两端分别为进液口与出液口，所述视液镜设置于进液口或出液口。
在一实施例中，所述视液镜的视液腔与阀腔连通。
在一实施例中，所述阀体组件还包括设置在所述阀座上的阀盖，所述阀腔具有进液腔和出液腔；所述阀座两端各设有与阀腔相连通的进液口和出液口。
所述阀座内设有一容纳室，所述容纳室上端设有阀口，所述进液腔为由进液口至阀口的腔室，所述出液腔为由阀口至出液口的腔室；所述进液腔通过阀口与所述出液腔连通。
在一实施例中，所述视液镜包括基座和镜片，所述基座内开设有视液腔，所述镜片设于所述基座内，所述视液腔与所述出液腔和/或所述进液腔相连通。
在一实施例中，所述视液腔内设有一安装架，所述安装架用以安装试纸。
在一实施例中，所述基座内设有第一台阶面，所述基座外沿设有第二台阶面，所述镜片安装在所述第一台阶面上与所述第二台阶面间的容纳空间中。
在一实施例中，所述容纳室底部具有一通孔，所述通孔与所述出液口相连通，所述出液腔为L形的管状空间结构。
在一实施例中，所述视液镜靠近所述出液口的一侧设有进口，所述视液镜远离所述出液口的一侧设有出口；所述进口、所述出口均与所述视液腔相连通；所述进口与所述出液口相连通。
在一实施例中，所述进液口、所述出液口、进口以及出口的轴线均在同一条直线上。
在一实施例中，所述阀口朝向所述电磁组件；当所述阀口与所述活塞相抵触时，所述出液腔和所述进液腔相断开连通；当所述活塞远离所述阀口时，所述出液腔和所述进液腔相连通。
在一实施例中，所述电磁组件包括：朝阀口方向依次设置的静铁芯、第一弹簧、动铁芯、第二弹簧和活塞；所述静铁芯、第一弹簧、动铁芯和第二弹簧设置在套管内，所述活塞通过所述第二弹簧与所述动铁芯连接。
在一实施例中，所述活塞包括：传动杆、上垫片、膜片和下垫片。
所述上垫片和下垫片为刚性片，膜片为弹性片；所述上垫片、膜片和下垫片沿朝向阀口方向依次同轴设置在所述传动杆靠近所述阀口的端部；所述传动杆远离所述阀口的另一端与所述第二弹簧相抵接。
在一实施例中，所述上垫片直径与所述动铁芯外径相适配，所述下垫片直径小于所述阀口内径，所述膜片直径大于所述阀口外径。
在一实施例中，所述膜片边缘搭设于所述阀座上，且所述膜片边缘与所述阀盖相贴合，以使得所述膜片与所述阀盖间形成密封腔室。
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带视液镜的电磁阀的结构视图。
图2A为根据一个或多个实施例的带视液镜的电磁阀的剖视图。
图2B为图2A中带视液镜的电磁阀的剖视图的局部放大图。
图3为根据一个或多个实施例的带视液镜的电磁阀中阀座及视液镜的结构视图。
图4为根据一个或多个实施例的带视液镜的电磁阀中阀座及视液镜的剖视图。
图5为根据一个或多个实施例的带视液镜的电磁阀的结构示图。
图6为根据一个或多个实施例的带视液镜的电磁阀中的阀座的结构示图。
图7为根据一个或多个实施例的带视液镜的电磁阀的横向剖视图。
图8为根据一个或多个实施例的带视液镜的电磁阀的纵向剖视图。
图9为图8中带视液镜的电磁阀的剖视图的局部放大图。
图中：100、带视液镜的电磁阀；1、阀体组件；15、阀腔；111、通孔；10、阀座；11、容纳室；110、阀口；12、视液镜；121、镜片；122、基座；1220、视液窗口；1221、第一台阶面；1222、第二台阶面；123、进口；124、出口；125、安装架；13、进液口；14、出液口；20、阀盖；30、进液管；40、出液管；120、视液腔；130、进液腔；140、出液腔；50、电磁组件；51、套管；52、静铁芯；53、第一弹簧；54、动铁芯；541、第一容纳腔；542、第二容纳腔；55、第二弹簧；56、活塞；561、传动杆；562、上垫片；563、膜片；5631、密封腔室；564、下垫片；565、插销；57、支撑片。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、 “顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本申请所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
参阅图1、图2A和图5，图1、图2A和图5示出了本申请实施例中的带视液镜的电磁阀100的结构视图，本申请实施例提供了的带视液镜的电磁阀100包括：阀体组件1，视液镜12和电磁组件50。视液镜12、阀体组件1以及电磁组件50为一体式，采用一体式方式进行加工。
阀体组件1包括阀座10和设置在阀座10上的阀盖20。阀盖20和阀座10间还设有密封件，以避免阀座10内的介质从阀盖20和阀座10间的间隙流出，如此可以提高阀体组件1的密封可靠性。可选地，密封件为特氟龙圈，即由特氟龙材料制成。
上述带视液镜的电磁阀100，将视液镜12和阀座10设为一体化结构，可直接可在电磁阀100上观察介质情况，简化了装配工艺，降低了生产成本，提高产品集成度，减少系 统阀件使用数量，简化系统管路布置。
请一并参阅图2B、图3、图6和图7，阀座10两端分别设有进液口13和出液口14，进液口13连接有进液管30，阀座10内具有阀腔15，阀腔15包括出液腔140和进液腔130。阀座10内设有一容纳室11，该容纳室11具有朝向阀盖20的阀口110，容纳室11底部具有一通孔111与出液口14相连通。阀口110连通进液口13和出液口14。出液口14与出液管40相连通，进液口13与进液管30相连通。由进液口13至阀口110的部分阀腔15为进液腔130，由阀口110至出液口14的部分阀腔15为出液腔140。通过控制阀口110的开闭，来控制进液腔130和出液腔140之间的通断。阀口110与电磁组件50相适配，电磁组件50控制阀口110的开闭状态。可选地，阀座10可以由具有高延展性的黄铜材料制成，也可以使用钢制材料通过机加工工艺制成。
在一些实施例中，如图2A、图3和图4所示，视液镜12设置于带视液镜的电磁阀100的端部。具体的，视液镜12设在出液口14或进液口13处。视液镜12与阀座10为一体式。本实施例视液镜12设在出液口14处，视液镜12整体呈具有朝上开放口的筒状结构，视液镜12的中空空间为视液腔120。视液镜12两侧分别设有进口123和出口124，进口123与出液口14相连通，即视液腔120与出液腔140相连通。
视液镜12包括基座122和安装在基座122内的镜片121。视液镜12上端部向上延伸形成环形的基座122，基座122其中部空间为与视液腔120相连通的视液窗口1220；基座122内设有第一台阶面1221，所述基座122外沿设有第二台阶面1222，所述镜片121安装在所述第一台阶面1221与所述第二台阶面1222间的容纳空间中。通过镜片121可以直接观察到视液腔120中介质的流通状态以及介质的液位等，从而确定介质用量是否需要填充。镜片121水平设置在基座122内，避免因镜片121倾斜设置导致光的折射使得难以正确判断视液镜12中介质的液位。出液腔140为L型的管状空间结构，以使得进入出液腔140的介质顺着出液腔140直接流向视液镜12，避免介质进入异型或复杂的腔室而产生湍流或涡流，导致视液镜12难以观察介质的流通状态。
本申请通过将视液镜120设置于阀体组件的进液口13或出液口14，以使得介质出出液腔140后直接进入视液镜12，通过视液镜可以观察到的阀腔内全部流体的流动，便于观察介质的流通状态，减小流量监测误差，同时视液镜120的尺寸大小不会受阀体组件1的尺寸限制。
进液口13、出液口14、进口123、出口124设置在同一轴线上，以避免介质进入视液镜12后在视液腔120中形成湍流或涡流而导致难以观察介质的流通状态。出口124与出液管40相连通。镜片121的水平高度不高于阀盖20的水平高度，使得本申请整体结构协 调、外观美观大方。
在一些实施例中，如图6和图8所示，视液镜12设置于带视液镜的电磁阀100的中部。具体的，视液镜12包括基座122和镜片121，阀座10一侧外壁向外侧延伸出基座122，基座122上具有一通往进液腔130的视液窗口1220，基座122内部开设有视液腔120；基座122内设有第一台阶面1221，所述基座外沿设有第二台阶面1222，镜片121安装在所述第一台阶面1221上；视液腔120与进液腔130相连通，从而通过该镜片121直接可以观察到介质的流通状态、阀体组件1内介质的液位等，从而确定介质用量是否适当，是否需要填充等。
通过将视液镜12设置于阀座10，将视液镜12的内腔与阀腔15连通，电磁阀100整体平衡性能较好，重心稳定，便于加工；同时视液镜12外壳部分与电磁阀100的外壳部分重合，使得视液镜12外壳能够借用电磁阀100的外壳，减少产品重量，节省成本。
可选地，镜片121通过铆接的方式安装在基座122内；基座122边缘通过外力使其朝向镜片121中心翻边，以保证基座122对镜片121有足够的预紧力，避免镜片121从基座122脱离，且保证了视液腔120的密封性。可选地，镜片121材质为玻璃材质(如钠钙玻璃或者高硼硅玻璃)或者树脂材质等本领域的其他透明材质制成。镜片121可以全透明也可以部分透明，在此不作限定。
进一步的，请参阅图8和图9，在一些实施例中，视液腔120内设有一安装架125，该安装架125用于安装试纸，通过镜片121直接可以观察到试纸；试纸用于测量介质中的水分含量，试纸在介质不同水分含量下发生相应的颜色变化，可以大致得知介质的水分含量。
如图1、图2A、图2B所示，阀口110其开口朝向阀盖20；阀盖20在阀口110相对应位置设有一安装孔，该安装孔内设有一套管51，套管51的一端朝向阀口110设置，套管51朝向阀口110的一端安装于安装孔内，以使得套管51内部与阀腔15相连通。可选地，阀盖20与阀座10配合对接的部位采用螺钉/螺栓连接等方式。
如图2A、图2B、图8所示，电磁组件50包括：可活动地设置在阀座10内的活塞56。活塞56能够控制阀口110的开闭。当活塞56与阀口110相抵接时，出液腔140和进液腔130断开连通；当活塞56远离阀口110时，出液腔140和进液腔130相连通。
电磁组件50还包括：套管51，以及套管51内部由上至下依次设置的静铁芯52、第一弹簧53、动铁芯54和第二弹簧55。
静铁芯52固定设置在套管51远离阀座10的一端，动铁芯54在套管51内部可以朝向靠近或远离静铁芯52的方向自由移动，当静铁芯52处于通电状态时，动铁芯54相对 于静铁芯52移动且与静铁芯52吸合。第一弹簧53抵接于静铁芯52和动铁芯54之间，动铁芯54朝向静铁芯52的一端具有一开放的第一容纳腔541，第一弹簧53在自然状态下部分容纳于该第一容纳腔541内，第一容纳腔541对第一弹簧53的伸缩起到引导作用，避免第一弹簧53沿套管51的径向窜动。当动铁芯54朝向静铁芯52移动直至与静铁芯52相抵接时，第一弹簧53逐渐压缩直至完全容纳于第一容纳腔541内。第二弹簧55一端与动铁芯54相抵接，另一端延伸至套管51外与活塞56相抵接。动铁芯54朝向阀口110的一端具有一开放的第二容纳腔542，第二弹簧55在自然状态下部分容纳于该第二容纳腔542内，当动铁芯54远离静铁芯52移动直至与活塞56相抵接时，第二弹簧55逐渐压缩直至完全容纳于第二容纳腔542内。第二弹簧55的弹性系数小于第一弹簧53的弹性系数，以使得静铁芯52处于断电状态时，第一弹簧53向动铁芯54作用并压缩第二弹簧55至第二容纳腔542内，动铁芯54抵接活塞56至活塞56移动至阀口110，活塞56封堵阀口110，进液腔130和出液腔140断开连通。
具体地，当静铁芯52处于通电状态产生磁力后，动铁芯54受的磁力大于第一弹簧53的弹力，动铁芯54向静铁芯52移动直至与静铁芯52相抵接，当进液腔130内介质压力大于一阈值后，活塞56在进液腔130内的介质压力作用下压缩第二弹簧55并远离阀口110，则进液腔130与出液腔140相连通。当静铁芯52处于断电状态，静铁芯52磁力消失，动铁芯54受第一弹簧53作用力向活塞56方向移动直至与活塞56相抵接，并推动活塞56向阀口110方向移动直至活塞56与阀口110相抵接，则进液腔130与出液腔140断开连通。
进一步的，如图2A、图2B、图8和图9所示，活塞56为膜片式活塞，该膜片式活塞包括：传动杆561、上垫片562、膜片563和下垫片564。上垫片562、膜片563和下垫片564沿朝向阀口110方向依次同轴设置，传动杆561靠近阀口110的端部。插销565依次通过下垫片564、膜片563和上垫片562，以将下垫片564、膜片563和上垫片562固定在传动杆561端部。传动杆561远离阀口110的另一端与第二弹簧55相抵接；上垫片562直径与动铁芯54外径相适配；下垫片564直径小于阀口110内径，以便于当膜片563与阀口110相抵接时，下垫片564容纳于阀口110内；膜片563直径大于阀口110外径，以使得膜片563能充分堵塞阀口110。上垫片562和下垫片564为刚性片，膜片563为弹性片，上垫片562和下垫片564夹持膜片563以避免膜片563过度形变。
更具体地，当静铁芯52处于通电状态产生磁力后，动铁芯54受磁力克服第一弹簧53弹力、向静铁芯52移动直至与静铁芯52相抵接，当进液腔130内介质压力大于一阈值后，膜片563发生形变且膜片563使活塞远离阀口110，进液腔130与出液腔140相连通。当静铁芯52处于断电状态，静铁芯52磁力消失，动铁芯54受第一弹簧53弹力作用下向活 塞56方向移动，第二弹簧55受力完全容纳于动铁芯54下端的第二容纳腔542内，动铁芯54直接与上垫片562相抵接，膜片563受上垫片562驱动向阀口110移动直至与阀口110相贴合，进液腔130和出液腔140断开连通。
如图2A、图2B、图8和图9所示，膜片563的边缘搭设于阀座10上并与阀盖20相贴合，使得膜片563与阀盖20间形成一密封腔室5631，以隔绝阀座10中的介质与套管51内的部件接触，避免电磁组件50受介质侵蚀。可选地，膜片563的材质为金属材质，膜片563的金属材质采用不锈钢或锰钢，以此提升膜片563在阀口110处所承受的压力的强度。膜片563的表面还包裹有密封涂层，且密封图层为非金属涂层，有助于提升膜片563的密封性，降低其泄漏率。可选地，非金属图层可以为特氟龙涂层或者硅橡胶涂层中的任意一种。
如图2A、图2B和图9所示，膜片563下设有一环形的支撑片57，该支撑片57为刚性片，支撑片57的内环径大于阀口110的外径，支撑片57的外环径与膜片563直径相适配，支撑片57与膜片563间具有一定距离以容纳膜片563的形变距离并对形变时的膜片563起支撑作用，避免膜片563因过度形变而受损；支撑片57上设有若干穿孔以用于介质的通过。
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 (15)

  1. 一种带视液镜的电磁阀，其特征在于，包括：
    阀体组件，其包括阀座，阀座内为阀腔；
    电磁组件，其一端为阀座内腔可活动的活塞，通过所述活塞使阀腔内的流体保持流通状态或断开状态；
    视液镜，其设置于阀座；视液镜与阀座为一体式。
  2. 根据权利要求1所述的带视液镜的电磁阀，其中，
    所述阀座两端分别为进液口与出液口，所述视液镜设置于进液口或出液口。
  3. 根据权利要求1所述的带视液镜的电磁阀，其中，
    所述视液镜的视液腔与阀腔连通。
  4. 根据权利要求2或3所述的带视液镜的电磁阀，其中，所述阀体组件还包括设置在所述阀座上的阀盖，所述阀腔具有进液腔和出液腔；所述阀座两端各设有与阀腔相连通的进液口和出液口；
    所述阀座内设有一容纳室，所述容纳室上端设有阀口，所述进液腔为由进液口至阀口的腔室，所述出液腔为由阀口至出液口的腔室；所述进液腔通过阀口与所述出液腔连通。
  5. 根据权利要求4所述的带视液镜的电磁阀，其中，所述视液镜包括基座和镜片，所述基座内开设有视液腔，所述镜片设于所述基座内，所述视液腔与所述出液腔和/或所述进液腔相连通。
  6. 根据权利要求5所述的带视液镜的电磁阀，其中，所述视液腔内设有一安装架，所述安装架用以安装试纸。
  7. 根据权利要求5所述的带视液镜的电磁阀，其中，所述基座内设有第一台阶面，所述基座外沿设有第二台阶面，所述镜片安装在所述第一台阶面上与所述第二台阶面间的容纳空间中。
  8. 根据权利要求4所述的带视液镜的电磁阀，其中，所述容纳室底部具有一通孔，所述通孔与所述出液口相连通；
    所述出液腔为L形的管状空间结构。
  9. 根据权利要求5所述的带视液镜的电磁阀，其中，所述视液镜靠近所述出液口的一侧设有进口，所述视液镜远离所述出液口的一侧设有出口；所述进口、所述出口均与所述视液腔相连通；所述进口与所述出液口相连通。
  10. 根据权利要求8所述的带视液镜的电磁阀，其中，所述进液口、所述出液口、进 口以及出口的轴线均在同一条直线上。
  11. 根据权利要求4所述的带视液镜的电磁阀，其中，所述阀口朝向所述电磁组件；当所述阀口与所述活塞相抵触时，所述出液腔和所述进液腔相断开连通；当所述活塞远离所述阀口时，所述出液腔和所述进液腔相连通。
  12. 根据权利要求11所述的带视液镜的电磁阀，其中，所述电磁组件包括：
    朝阀口方向依次设置的静铁芯、第一弹簧、动铁芯、第二弹簧和活塞；所述静铁芯、第一弹簧、动铁芯和第二弹簧设置在套管内，所述活塞通过所述第二弹簧与所述动铁芯连接。
  13. 根据权利要求12所述的带视液镜的电磁阀，其中，所述活塞包括：传动杆、上垫片、膜片和下垫片；
    所述上垫片和下垫片为刚性片，膜片为弹性片；所述上垫片、膜片和下垫片沿朝向阀口方向依次同轴设置在所述传动杆靠近所述阀口的端部；所述传动杆远离所述阀口的另一端与所述第二弹簧相抵接。
  14. 根据权利要求13所述的带视液镜的电磁阀，其中，所述上垫片直径与所述动铁芯外径相适配；
    所述下垫片直径小于所述阀口内径；
    所述膜片直径大于所述阀口外径。
  15. 根据权利要求13所述的带视液镜的电磁阀，其中，所述膜片边缘搭设于所述阀座上，且所述膜片边缘与所述阀盖相贴合，以使得所述膜片与所述阀盖间形成密封腔室。
PCT/CN2023/087976 2022-04-13 2023-04-13 带视液镜的电磁阀 WO2023198139A1 (zh)

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CN217381886U (zh) * 2022-04-13 2022-09-06 盾安环境技术有限公司 带视液镜的电磁阀
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013213527A (ja) * 2012-03-31 2013-10-17 Saginomiya Seisakusho Inc 制御弁、および制御弁を用いた燃料電池システム
CN104295785A (zh) * 2013-07-17 2015-01-21 浙江三花股份有限公司 电控制阀的制作方法
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