WO2014190904A1 - 比例阀 - Google Patents

比例阀 Download PDF

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Publication number
WO2014190904A1
WO2014190904A1 PCT/CN2014/078647 CN2014078647W WO2014190904A1 WO 2014190904 A1 WO2014190904 A1 WO 2014190904A1 CN 2014078647 W CN2014078647 W CN 2014078647W WO 2014190904 A1 WO2014190904 A1 WO 2014190904A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
valve
magnetic
seat
proportional valve
Prior art date
Application number
PCT/CN2014/078647
Other languages
English (en)
French (fr)
Inventor
申佑方
Original Assignee
北京谊安医疗系统股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京谊安医疗系统股份有限公司 filed Critical 北京谊安医疗系统股份有限公司
Priority to EA201592111A priority Critical patent/EA201592111A1/ru
Priority to BR112015029743-9A priority patent/BR112015029743B1/pt
Priority to US14/894,903 priority patent/US9903499B2/en
Publication of WO2014190904A1 publication Critical patent/WO2014190904A1/zh

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
    • F16K1/36—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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/202—Controlled valves electrically actuated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/202—Controlled valves electrically actuated
    • A61M16/203—Proportional
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/202—Controlled valves electrically actuated
    • A61M16/203—Proportional
    • A61M16/205—Proportional used for exhalation control
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
    • F16K41/12—Spindle sealings with diaphragm, e.g. shaped as bellows or tube with approximately flat diaphragm
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • G05D16/2022—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means actuated by a proportional solenoid
    • 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
    • F16K27/0236—Diaphragm cut-off apparatus
    • 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
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet

Definitions

  • the present invention relates to the medical field, and in particular to a proportional valve.
  • the existing ratio is wide and has a short response speed.
  • the present invention is directed to solving at least some of the above technical problems or at least providing a useful commercial choice. To this end, it is an object of the invention to propose a wide ratio.
  • the proportional valve includes a valve body having an air inlet hole and an air outlet hole in the wide body; a spool assembly, the core assembly is movably disposed in the valve body in an up and down direction; and a first diaphragm, the first An outer side of the diaphragm is coupled to the valve body, and an inner side of the first diaphragm is coupled to the spool assembly.
  • a proportional valve according to an embodiment of the present invention is provided with a first diaphragm that is connected to the wide core assembly and has an outer side connected to the valve body (ie, the spool assembly is supported by the first diaphragm on the valve) So that the valve plug assembly is spaced apart from the valve body. Therefore, the valve core assembly does not contact the gorge when moving up and down in the wide body, that is, when the valve core assembly moves up and down in the valve body, between the wide core assembly and the valve body No friction is generated, so that the response speed, accuracy, repeatability, and consistency of the proportional valve can be improved, and the hysteresis of the proportional valve can be reduced.
  • the valve body includes: a body, the body having the a venting hole and the venting hole; a diaphragm seat, the diaphragm seat is disposed on the body, an outer side of the first diaphragm is connected to the diaphragm seat; an upper magnetic seat, the upper magnetic seat is disposed at a magnetic ring, the magnetic ring is disposed on the upper magnetic seat; and a magnetic core, the magnetic core is disposed on the magnetic ring, and a part of the magnetic core is located in the magnetic ring Inside.
  • the first diaphragm can be more firmly connected to the valve body, and the stability of the valve core assembly can be improved.
  • the spool assembly includes: a valve cover, the valve cover is disposed in the air outlet and opposite to the air inlet; a jack, the jack and the a valve cover is connected and passes through the diaphragm seat, an inner side of the first diaphragm is connected to the jack; and a coil is connected to the jack, a part of the coil is located in the Within the magnetic ring, a portion of the magnetic core extends into the coil.
  • the valve plug assembly thus has the advantages of a simple structure and the like.
  • the diaphragm holder includes an upper diaphragm holder and a lower diaphragm seat disposed on the upper diaphragm seat, the upper diaphragm seat being disposed on the body, wherein The outer side of the first diaphragm is sandwiched between the upper diaphragm seat and the lower diaphragm seat. This makes it easy to install the valve cover.
  • a sealing ring is disposed between the upper diaphragm seat and the body. Thereby, leakage of gas from between the upper diaphragm seat and the body can be prevented.
  • the jack passes through the coil and the magnetic core
  • the spool assembly further includes a second diaphragm, and an outer side of the second diaphragm is connected to the magnetic core, An inner side of the second diaphragm is coupled to a portion of the jack that passes through the magnetic core.
  • the valve body further includes a diaphragm support plate, the diaphragm support plate is disposed on the magnetic core, wherein an outer side of the second diaphragm is clamped on the magnetic core and Between the diaphragm supports. Therefore, the second diaphragm can be connected to the valve body more conveniently and more stably, so that the stability of the valve core assembly when moving up and down can be improved, thereby making the proportional valve more precise. , repeatability is better.
  • the upper magnetic base is provided with a first terminal and a second terminal, and one end of the wire of the wire is connected to the first terminal and the other end is opposite to the second The terminals are connected.
  • the valve body further includes a spacer, the spacer is disposed on an upper surface of the magnetic core, and an outer circumferential surface of the spacer is in contact with an inner circumferential surface of the magnetic ring. Thereby, the coaxiality of the magnetic core and the magnetic ring can be ensured.
  • FIG. 1 is a schematic structural view of a proportional valve according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a proportional valve according to an embodiment of the present invention.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features, either explicitly or implicitly.
  • the meaning of “plurality” is two or more, unless specifically defined otherwise.
  • the terms “installed”, “connected”, “connected”, “fixed” and the like are to be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined.
  • the first feature "on” or “under” the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise explicitly defined and defined. It is not in direct contact but through additional features between them.
  • the first feature “over”, “above” and “above” the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature is higher than the second feature
  • a feature "below”, “below,” and “below” the second feature includes the first feature directly below and below the second feature, or merely indicating that the first feature level is less than the second feature.
  • a proportional valve 1 according to an embodiment of the present invention includes a valve body 10, a spool assembly 20, and a first membrane, as shown in FIGS. 1 and 2, in accordance with an embodiment of the present invention.
  • Sheet 30 The
  • the valve body 10 has an air inlet hole 101 and an air outlet hole 102.
  • the valve core assembly 20 is movably disposed in the valve body 10 in the up and down direction, and the outer side of the first diaphragm 30 is connected to the valve body 10, the first diaphragm.
  • the inside of the 30 is connected to the spool assembly 20.
  • the up and down direction is indicated by an arrow A in Figs. 1 and 2
  • the inner and outer directions are as indicated by an arrow B in Figs. 1 and 1.
  • the distance between the spool assembly 20 and the intake port 101 can be adjusted by moving the spool assembly 20 up and down, thereby changing the flow rate of the gas passing through the proportional valve 1.
  • the gas enters the proportional valve 1 through the intake hole 101, and enters the air outlet 102 through the gap between the spool assembly 20 and the intake port 101, between the spool assembly 20 and the intake port 101.
  • the size of the gap changes as the spool assembly 20 moves up and down within the valve body 10 (specifically, the gap decreases as the spool assembly 20 moves upward, and the gap increases as the spool assembly 20 moves downward ), so that the function of controlling the gas flow can be achieved.
  • the proportional valve 1 is provided with a first diaphragm 30 which is connected to the valve core assembly 20 on the inner side and is connected to the valve body 10 on the outer side (i.e., the wide core assembly 20 is supported on the wide body 10 through the first diaphragm 30) Thereby, the spool assembly 20 is spaced apart from the valve body 10. Thereby the spool assembly 20 moves up and down within the valve body 10.
  • the valve body assembly 20 is not in contact with the valve body 10, that is, when the valve core assembly 20 moves up and down in the valve body 10, no frictional force is generated between the valve core assembly 20 and the valve body 10, so that the response speed, accuracy, and accuracy of the proportional valve 1 can be improved. Repeatability and consistency, and reduce the hysteresis of proportional valve 1.
  • the proportional valve 1 since no friction is generated between the wide core assembly 20 and the valve body 10, there is no requirement for the material and machining accuracy of the spool assembly 20 and the valve body 10, so that the manufacturing difficulty and manufacturing cost of the proportional valve 1 can be reduced. Therefore, the proportional valve 1 according to the embodiment of the present invention has the advantages of high response speed, high precision, good repeatability, good consistency, small hysteresis, low manufacturing difficulty, and low manufacturing cost.
  • the core assembly 20 In the state shown in Fig. 1, the core assembly 20 is spaced apart from the intake port 101, and gas can enter the air outlet 102 through the gap between the spool assembly 20 and the intake port 101. In the state shown in Fig. 2, the spool assembly 20 covers the intake port 101, at which time gas cannot enter the outlet port 102 through the intake port 101, so the gas cannot pass through the proportional valve 1.
  • the body 10 may include a body 110, a diaphragm holder 120, an upper magnet holder 130, a magnetic ring 140, and a magnetic core 150.
  • the body 110 may have an air inlet 101 and an air outlet 102 therein.
  • the diaphragm holder 120 may be disposed on the body 110, and the outer side of the first diaphragm 30 may be coupled to the diaphragm holder 120.
  • the upper magnetic base 1 30 may be disposed on the diaphragm holder 120.
  • the magnetic ring 140 may be disposed on the upper magnetic base 130, and the magnetic core 150 may be disposed on the magnetic ring 140.
  • a portion of the magnetic core 150 may be located in the magnetic ring 140. This facilitates the formation of a magnetic field.
  • the first diaphragm 30 can be more stably attached to the valve body 10, and the stability of the spool assembly 20 can be improved.
  • the spool assembly 20 can include a bonnet plate 210, a ram 220, and a coil 230.
  • the valve cover 210 may be disposed in the air outlet 102 and the valve cover 210 may be opposed to the air inlet 101.
  • the jack 220 can be coupled to the valve cover 210 and the jack 220 can pass through the diaphragm seat 120, and the inner side of the first diaphragm 30 can be coupled to the jack 220.
  • the coil 230 can be coupled to the jack 220, a portion of the coil 230 can be located within the magnet ring 140, and a portion of the core 150 can extend into the coil 230.
  • the spool assembly 20 has the advantages of a simple structure and the like.
  • the magnitude of the current flowing into the coil 230 (for example, applying a pulse voltage to the coil 230) can be changed, thereby changing the magnetic magnitude of the coil 230, and thus the coil 230 and the magnet can be changed.
  • the force between the cores 150 Specifically, the current flowing into the coil 2 30 is increased, the magnetism of the coil 230 is increased, and the force between the coil 230 and the core 150 is increased, and the coil 230 is increased.
  • the upward movement is performed to reduce the gap between the valve cover 210 and the intake port 101, so that the flow rate of the gas passing through the proportional valve 1 can be reduced.
  • reducing the current flowing into the coil 230 increases the flow of gas through the proportional valve 1.
  • the diaphragm holder 120 may include an upper diaphragm holder 121 and a lower diaphragm holder 122 disposed on the upper diaphragm holder 121.
  • the upper diaphragm holder 121 may be disposed on the body 110. .
  • the outer side of the first diaphragm 30 may be sandwiched between the upper diaphragm holder 121 and the lower diaphragm holder 122. This makes it easy to install the valve cover 210.
  • the jack 220 can pass through the upper diaphragm seat 121 and the lower diaphragm seat 122 in the up and down direction.
  • each of the upper diaphragm holder 121 and the lower diaphragm holder 122 may be annular.
  • the upper diaphragm holder 121 may be disposed on the lower surface of the body 110, and the lower diaphragm holder 122 may be disposed on the lower surface of the upper diaphragm holder 121.
  • a seal ring 40 may be provided between the upper diaphragm seat 121 and the body 110. Thereby, leakage of gas from between the upper diaphragm holder 121 and the body 1 10 can be prevented.
  • the jack 220 may pass through the coil 230 and the core 150, and the spool assembly 20 may further include a second diaphragm 240, the outer side of the second diaphragm 240. It may be connected to the magnetic core 150, and the inner side of the second diaphragm 240 may be connected to a portion of the jack 220 that passes through the core 150.
  • the first diaphragm 30 and the second diaphragm 240 collectively support the spool assembly 20.
  • the spool assembly 20 can be made more stable during the up and down movement, so that the proportional valve 1 has higher precision and better repeatability.
  • the valve body 10 may further include a diaphragm support plate 160, and the diaphragm support plate 160 may be disposed on the magnetic core 150.
  • the outer side of the second diaphragm 240 may be sandwiched between the magnetic core 150 and the diaphragm support 160. Therefore, the second diaphragm 240 can be more conveniently and more stably connected to the valve body 10, thereby improving the stability of the spool assembly 20 when moving up and down, thereby making the proportional valve 1 more accurate and repeatable. better.
  • the diaphragm supporting plate 160 may be disposed on the lower surface of the magnetic core 150, and the horizontal section of the diaphragm supporting plate 160 may be a circular ring shape.
  • the valve body 10 may further include a spacer 170, and the spacer 170 may be disposed on the upper surface of the magnetic core 150, and the outer peripheral surface of the spacer 170 may be magnetic The inner peripheral surface of the ring 140 is in contact.
  • the spacer 170 By providing the spacer 170, the coaxiality of the magnetic core 150 and the magnetic ring 140 can be ensured.
  • the upper magnetic base 130 may be disposed on the lower surface of the lower diaphragm seat 122, and the horizontal cross section of the upper magnetic base 130 may be a circular ring shape.
  • the upper magnetic base 130 may include a first vertical portion, a horizontal portion, and a second vertical portion, and the first vertical portion may be disposed on a lower surface of the lower diaphragm seat 122, and the horizontal portion may be disposed on the magnetic ring U
  • the outer edge of the horizontal portion may be coupled to the lower edge of the first vertical portion
  • the inner edge of the horizontal portion may be coupled to the upper edge of the second vertical portion.
  • the inner circumferential surface of the spacer 170 may be in contact with the outer circumferential surface of the second vertical portion, that is, the spacer 170 may be sandwiched between the magnetic ring 140 and the second vertical portion.
  • a receiving cavity 18 ft may be defined between the upper magnetic block 1 30 and the spacer 170.
  • the coil 230 may be located within the receiving cavity 180. Wherein, the spacer 170 may be disposed on the upper surface of the magnetic core 150.
  • the magnetic ring 140 may be cylindrical, the horizontal section of the magnetic ring 140 may be a circular ring, and the magnetic ring 140 may be disposed on the lower surface of the upper magnetic base 130.
  • the horizontal section of the magnetic core 150 may be a circular ring, the magnetic ring 140 may be disposed on the upper surface of the magnetic core 150, and a portion of the magnetic core 150 may be located in the accommodating cavity 180.
  • a portion of the turns 230 may be located between the second vertical portion and the magnetic core 150.
  • the upper magnetic terminal 130 may be provided with a first terminal 131 and a second terminal, and one end of the wire 231 of the wire 230 may be connected to the first wire.
  • the terminals 131 are connected and the other end of the wire 231 may be connected to the second terminal.
  • the wire 231 of the coil 230 can be energized more conveniently and easily.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Hematology (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Magnetically Actuated Valves (AREA)
  • Lift Valve (AREA)

Abstract

一种比例阀，该比例阀（1）包括：阀体（10），阀体（10）内具有进气孔（101）和出气孔（102）；阀芯组件（20），阀芯组件（20）沿上下方向可移动地设在阀体（10）内；和第一膜片（30），第一膜片（30）的外侧与阀体（10）相连，第一膜片（30）的内侧与阀芯组件（20）相连。该比例阀具有响应速度快、精度高、重复性好、一致性好、迟滞小、制造难度低、制造成本低等优点。

Description

说 明 书 比例阀 本专利申请要求于 2013年 5月 31 日提交的、 申请号为 201310215594.3、 申请人为北京谊安医疗系统股份有限公司、 发明名称为 "比例阀" 的中国专利 申请的优先权， 该申请的全文以引用的方式并入本申请中。
^L? 领域
本发明涉及医疗领域， 具体而言， 涉及一种比例阀。
背景技术
现有的比例阔存在响应速度慢的缺陷。
发明内容
本发明旨在至少在一定程度上解决上述技术问题之一或至少提供一种有用 的商业选择。 为此， 本发明的一个目的在于提出一种比例阔。
为了实现上述目的， 根据本发明的实施例提出一种比例阀。 所述比例阀包 括阀体， 阔体内具有进气孔和出气孔； 阀芯组件， 所述闹芯组件沿上下方向可 移动地设在所述阀体内； 和第一膜片， 所述第一膜片的外侧与所述阀体相连， 所述第一膜片的内侧与所述阀芯组件相连。
根据本发明实施例的比例阀通过设置内侧与所述阔芯组件相连且外侧与所 述阀体相连的第一膜片 （即所述阀芯组件通过所述第一膜片支撑在所述阀体 上）， 从而使得所述阀芯组件与所述阀体间隔开。 由此所述阀芯组件在所述阔体 内上下移动时不与所述岡体接触， 即所述阀芯组件在所述阀体内上下移动时 , 所述阔芯组件与所述阀体之间不产生摩擦力， 从而可以提高所述比例阀的响应 速度、 精度、 重复性和一致性， 并减小所述比例阀的迟滞。
另外， 根据本发明上述实施例的比例阀还可以具有如下附加的技术特征： 根据本发明的一个实施例， 所述阀体包括： 本体， 所述本体内具有所述进 气孔和所述出气孔； 膜片座， 所述膜片座设在所述本体上， 所述第一膜片的外 侧与所述膜片座相连； 上磁座， 所述上磁座设在所迷膜片座上； 磁环， 所述磁 环设在所述上磁座上； 和磁芯， 所述磁芯设在所述磁环上， 所述磁芯的一部分 位于所述磁环内。 由此不仅有利于形成磁场， 而且通过设置所述膜片座， 从而 可以使所述第一膜片更加稳固地连接在所述阀体上， 进而可以提高所述阀芯组 件的稳定性。
根据本发明的一个实施例， 所述阀芯组件包括： 阀盖板， 所述阀盖板设在 所述出气孔内且与所述进气孔相对； 顶杆， 所述顶杆与所述阀盖板相连且穿过 所述膜片座， 所述第一膜片的内侧与所述顶杆相连； 和线圏， 所述线圈与所述 顶杆相连， 所述线圈的一部分位于所述磁环内， 所述磁芯的一部分伸入所述线 圈内。 由此所述阀芯組件具有结构简单等优点。
根据本发明的一个实施例， 所述膜片座包括上膜片座和设在所述上膜片座 上的下膜片座， 所述上膜片座设在所述本体上， 其中所述第一膜片的外侧夹持 在所述上膜片座与所述下膜片座之间。 由此可以便于安装所述阀盖板。
根据本发明的一个实施例， 所述上膜片座与所述本体之间设有密封圈。 由 此可以防止气体从所述上膜片座与所述本体之间泄漏。
根据本发明的一个实施例， 所述顶杆穿过所述线圈和所述磁芯 , 所述阀芯 組件还包括第二膜片， 所述第二膜片的外侧与所述磁芯相连， 所述第二膜片的 内侧与所述顶杆的穿过所述磁芯的部分相连。 由此可以使得所述阀芯组件在上 下运动的过程中更稳定， 从而使得所述比例阀的精度更高、 重复性更好。
根据本发明的一个实施例， 所述阀体还包括膜片支板， 所述膜片支板设在 所述磁芯上， 其中所述第二膜片的外侧夹持在所述磁芯与所述膜片支板之间。 由此可以将所述第二膜片更加方便地、 更加稳固地与所述阀体相连， 从而可以 提高所述阀芯组件在上下运动时的稳定性， 进而使得所述比例阀的精度更高、 重复性更好。
根据本发明的一个实施例， 所述上磁座上设有第一接线端子和第二接线端 子， 所述线圏的导线的一端与所述第一接线端子相连且另一端与所述第二接线 端子相连。 由此可以更加方便地、 容易地给所述线圈的导线通电。 根据本发明的一个实施例， 所述阀体还包括隔套， 所述隔套设在所述磁芯 的上表面上， 所述隔套的外周面与所述磁环的内周面接触。 由此可以保证所述 磁芯和所述磁环的同轴度。
本发明的附加方面和优点将在下面的描述中部分给出， 部分将从下面的描 述中变得明显， 或通过本发明的实践了解到。
附图说明
本发明的上述和 /或附加的方面和优点从结合下面附图对实施例的描述中 将变得明显和容易理解， 其中：
图 1是根据本发明实施例的比例阀的结构示意图；
图 2是根据本发明实施例的比例阀的结构示意图。
具体实施方式
下面详细描述本发明的实施例 , 所述实施例的示例在附图中示出， 其中自 始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元 件。 下面通过参考附图描述的实施例是示例性的， 旨在用于解释本发明， 而不 能理解为对本发明的限制。
在本发明的描述中， 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" 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 为了便于描述本发明和简化描述， 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发明的限制。
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一个或者更多个该特征。 在本发明的 描述中， "多个" 的含义是两个或两个以上， 除非另有明确具体的限定。 在本发明中， 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， 或一体地连接； 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。 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发明中的具体含义。
在本发明中， 除非另有明确的规定和限定， 第一特征在第二特征之 "上" 或之 "下" 可以包括第一和第二特征直接接触， 也可以包括第一和第二特征不 是直接接触而是通过它们之间的另外的特征接触。 而且， 第一特征在第二特征 "之上'' 、 "上方" 和 "上面" 包括第一特征在第二特征正上方和斜上方， 或 仅仅表示第一特征水平高度高于第二特 第一特征在第二特征 "之下" 、 "下 方，， 和 "下面" 包括第一特征在第二特征正下方和斜下方， 或仅仅表示第一特 征水平高度小于第二特征。
下面参照图 1和图 2描述根据本发明实施例的比例阀 L如图 1和图 2所示， 冲艮据本发明实施例的比例阀 1包括阀体 10、 阀芯組件 20和第一膜片 30。
阀体 10内具有进气孔 1 01和出气孔 102， 阀芯组件 20沿上下方向可移动地 设在阀体 10内， 第一膜片 30的外侧与阀体 1 0相连， 第一膜片 30的内侧与阀 芯组件 20相连。 其中，上下方向如图 1和图 2中的箭头 A所示， 内外方向如图 1 和图 1中的箭头 B所示。
在比例阀 1工作过程中， 可以通过上下移动阀芯組件 20来调节阀芯组件 20 与进气孔 1 01之间的距离， 从而可以改变通过比例阀 1的气体的流量。 换言之， 气体通过进气孔 1 01进入比例阀 1内， 并通过阀芯組件 20与进气孔 101之间的 间隙进入到出气孔 1 02 , 阀芯组件 20与进气孔 1 01之间的间隙的大小会随着阀 芯组件 20在阀体 10内的上下移动而改变（具体地， 阀芯组件 20向上移动则所 述间隙减小， 阀芯组件 20向下移动则所述间隙增大） , 从而可以达到控制气体 流量的功能。
根据本发明实施例的比例阀 1通过设置内侧与阀芯组件 20相连且外侧与阀 体 10相连的第一膜片 30 (即阔芯組件 20通过第一膜片 30支撑在阔体 10上）， 从而使得阀芯组件 2 0与阀体 10间隔开。 由此阀芯组件 20在阀体 10内上下移 动时不与阀体 10接触， 即阀芯组件 20在阀体 10 内上下移动时， 阀芯组件 20 与阀体 10之间不产生摩擦力， 从而可以提高比例阀 1的响应速度、 精度、 重复 性和一致性， 并减小比例阀 1的迟滞。
而且， 由于阔芯組件 20与阀体 1 0之间不产生摩擦力， 因此对阀芯组件 20 和阀体 10的材料和加工精度没有要求， 从而可以降低比例阀 1的制造难度和制 造成本。 因此， 根据本发明实施例的比例阀 1 具有响应速度快、 精度高、 重复 性好、 一致性好、 迟滞小、 制造难度低、 制造成本低等优点。
在图 1所示的状态中， 岡芯组件 20与进气孔 1 01间隔开， 气体可以通过阀 芯组件 20与进气孔 1 01之间的间隙进入到出气孔 1 02内。在图 2所示的状态中， 阀芯组件 20覆盖进气孔 101 , 此时气体无法通过进气孔 101进入到出气孔 102 内， 因此气体不能通过比例阀 1。
如图 1和图 2所示， 在本发明的一些实施例中， 岡体 10可以包括本体 110、 膜片座 120、 上磁座 130、 磁环 140和磁芯 150。 本体 11 0内可以具有进气孔 101 和出气孔 102。 膜片座 120可以设在本体 110上， 第一膜片 30的外侧可以与膜 片座 120相连。 上磁座 1 30可以设在膜片座 120上， 磁环 140可以设在上磁座 1 30上，磁芯 150可以设在磁环 140上磁芯 150的一部分可以位于磁环 140内。 由此有利于形成磁场。 通过设置膜片座 120 , 从而可以使第一膜片 30更加稳固 地连接在阀体 10上， 进而可以提高阀芯组件 20的稳定性。
在本发明的一个实施例中， 如图 1和图 2所示， 阀芯组件 20可以包括阀盖 板 21 0、 顶杆 220和线圈 230。 阀盖板 210可以设在出气孔 102内且阀盖板 210 可以与进气孔 101相对。 顶杆 220可以与阀盖板 21 0相连且顶杆 220可以穿过 膜片座 120, 第一膜片 30的内侧可以与顶杆 220相连。 线圈 230可以与顶杆 220 相连， 线圈 230的一部分可以位于磁环 140内， 磁芯 150的一部分可以伸入线 圈 230内。 由此阀芯组件 20具有结构简单等优点。
在调节通过比例阀 1的气体的流量时， 可以改变通入线圏 230的电流的大 小 （例如对线圏 230施加脉冲电压） ， 从而改变线圏 230的磁性大小， 进而可 以改变线圈 230与磁芯 150之间的作用力。 具体而言， 增大通入线圈 2 30的电 流， 线圏 230的磁性变大， 线圈 230与磁芯 150之间的作用力变大， 线圈 230 向上移动以便减小阀盖板 210与进气孔 101之间的间隙， 从而可以减小通过比 例阀 1的气体的流量。 反之， 减小通入线圏 230的电流， 可以增大通过比例阀 1 的气体的流量。
如图 1和图 2所示， 有利地， 膜片座 120可以包括上膜片座 121和设在上 膜片座 121上的下膜片座 122, 上膜片座 121可以设在本体 110上。 其中， 第一 膜片 30的外侧可以夹持在上膜片座 121与下膜片座 122之间。 由此可以便于安 装阀盖板 210。 具体地， 顶杆 220可以沿上下方向穿过上膜片座 121和下膜片座 122。
其中， 上膜片座 121和下膜片座 122 中的每一个的水平截面都可以是圆环 形。 上膜片座 121可以设在本体 1 10的下表面上， 下膜片座 122可以设在上膜 片座 121的下表面上。 有利地， 如图 1和图 2所示， 上膜片座 121与本体 110 之间可以设有密封圈 40。 由此可以防止气体从上膜片座 121与本体 1 10之间泄 漏。
如图 1和图 2所示， 在本发明的一些示例中， 顶杆 220可以穿过线圈 230 和磁芯 150， 阀芯组件 20还可以包括第二膜片 240， 第二膜片 240的外侧可以 与磁芯 150相连， 第二膜片 240的内侧可以与顶杆 220的穿过磁芯 150的部分 相连。 换言之， 第一膜片 30和第二膜片 240共同支撑阀芯组件 20。 由此可以使 得阀芯组件 20在上下运动的过程中更稳定， 从而使得比例阀 1的精度更高、 重 复性更好。
具体地， 如图 1和图 2所示， 阀体 10还可以包括膜片支板 160 , 膜片支板 160可以设在磁芯 150上。 其中， 第二膜片 240的外侧可以夹持在磁芯 150与膜 片支板 160之间。 由此可以将第二膜片 240更加方便地、 更加稳固地与阀体 1 0 相连， 从而可以提高阀芯组件 20在上下运动时的稳定性， 进而使得比例阀 1的 精度更高、 重复性更好。 其中， 膜片支板 160可以设在磁芯 150的下表面上， 膜片支板 160的水平截面可以是圓环形。
如图 1和图 2所示， 在本发明的一个示例中， 阀体 10还可以包括隔套 170, 隔套 170可以设在磁芯 150的上表面上， 隔套 170的外周面可以与磁环 140的 内周面接触。 通过设置隔套 170 , 可以保证磁芯 150和磁环 140的同轴度。 具体地， 如图 1和图 2所示， 上磁座 1 30可以设在下膜片座 122的下表面 上， 上磁座 1 30的水平截面可以是圆环形。 上磁座 130可以包括第一竖直部、 水平部和第二竖直部， 所述第一竖直部可以设在下膜片座 122 的下表面上， 所 述水平部可以设在磁环 U 0 的上表面上， 所述水平部的外沿可以与所述第一竖 直部的下沿相连， 所述水平部的内沿可以与所述第二竖直部的上沿相连。 隔套 170的内周面可以与所述第二竖直部的外周面接触， 即隔套 170可以夹持在磁环 140和所述第二竖直部之间。上磁座 1 30和隔套 170之间可以限定出容纳腔 18 ft 线圈 230可以位于容纳腔 180内。 其中， 隔套 170可以设在磁芯 150的上表面 上。
磁环 140可以是圓柱状， 磁环 140的水平截面可以是圓环形， 磁环 140可 以设在上磁座 130的下表面上。 磁芯 150的水平截面可以是圆环形， 磁环 140 可以设在磁芯 150的上表面上， 且磁芯 150的一部分可以位于容纳腔 180内。 线圏 230的一部分可以位于所述第二竖直部和磁芯 150之间。
如图 1和图 2所示， 在本发明的一个具体示例中， 上磁座 130上可以设有 第一接线端子 131和第二接线端子， 线圏 230的导线 231的一端可以与第一接 线端子 131相连且导线 231的另一端可以与所述第二接线端子相连。 由此可以 更加方便地、 容易地给线圈 230的导线 231通电。
在本说明书的描述中， 参考术语 "一个实施例" 、 "一些实施例" 、 "示 例" 、 "具体示例" 、 或 "一些示例" 等的描述意指结合该实施例或示例描述 的具体特征、 结构、 材料或者特点包含于本发明的至少一个实施例或示例中。 在本说明书中， 对上述术语的示意性表述不一定指的是相同的实施例或示例。 而且， 描述的具体特征、 结构、 材料或者特点可以在任何的一个或多个实施例 或示例中以合适的方式结合。
尽管上面已经示出和描述了本发明的实施例， 可以理解的是， 上述实施例 是示例性的， 不能理解为对本发明的限制， 本领域的普通技术人员在不脱离本 发明的原理和宗旨的情况下在本发明的范围内可以对上述实施例进行变化、 修 改、 替换和变型。

Claims

权 利 要 求 书
1、 一种比例阀， 其特征在于， 包括：
阀体， 阀体内具有进气孔和出气孔；
阀芯组件， 所述阀芯组件沿上下方向可移动地设在所述阔体内； 和 第一膜片， 所述第一膜片的外侧与所述阀体相连， 所述第一膜片的内侧与 所述阀芯组件相连。
2、 根据权利要求 1所述的比例阀， 其特征在于， 所述阀体包括： 本体， 所述本体内具有所述进气孔和所述出气孔；
膜片座， 所述膜片座设在所述本体上， 所述第一膜片的外侧与所述膜片座 相连；
上磁座， 所述上磁座设在所述膜片座上；
磁环， 所述磁环设在所述上磁座上； 和
磁芯， 所述磁芯设在所述磁环上， 所述磁芯的一部分位于所述磁环内。
3、 根据权利要求 2所述的比例阀， 其特征在于， 所述阀芯组件包括： 阀盖板， 所述阀盖板设在所述出气孔内且与所述进气孔相对；
顶杆， 所述顶杆与所述阀盖板相连且穿过所述膜片座， 所述第一膜片的内 侧与所述顶杆相连； 和
线圏， 所述线圈与所述顶杆相连， 所述线圈的一部分位于所述磁环内， 所 述磁芯的一部分伸入所述线圈内。
4、 根据权利要求 2所述的比例阀， 其特征在于， 所述膜片座包括上膜片座 和设在所述上膜片座上的下膜片座， 所述上膜片座设在所述本体上， 其中所述 第一膜片的外侧夹持在所述上膜片座与所述下膜片座之间。
5、 根据权利要求 4所述的比例阀， 其特征在于， 所述上膜片座与所述本体 之间设有密封圏。
6、 根据权利要求 3所述的比例阀， 其特征在于， 所述顶杆穿过所述线圈和 所述磁芯， 所述阀芯组件还包括第二膜片， 所述第二膜片的外侧与所述磁芯相 连， 所述第二膜片的内侧与所述项杆的穿过所述磁芯的部分相连。
7、根据权利要求 6所述的比例阔， 其特征在于， 所述岡体还包括膜片支板， 所述膜片支板设在所述磁芯上， 其中所述第二膜片的外侧夹持在所述磁芯与所 述膜片支板之间。
8、 根据权利要求 3所述的比例阀， 其特征在于， 所述上磁座上设有第一接 线端子和第二接线端子， 所述线圈的导线的一端与所述第一接线端子相连且另 一端与所述第二接线端子相连。
9、 根据权利要求 3所述的比例阀， 其特征在于， 所述阀体还包括隔套， 所 述隔套设在所述磁芯的上表面上， 所述隔套的外周面与所述磁环的内周面接触。
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EA201592111A1 (ru) 2016-07-29
CN104214355A (zh) 2014-12-17

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