JP2004257722A - Electric valve - Google Patents

Electric valve Download PDF

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Publication number
JP2004257722A
JP2004257722A JP2003300267A JP2003300267A JP2004257722A JP 2004257722 A JP2004257722 A JP 2004257722A JP 2003300267 A JP2003300267 A JP 2003300267A JP 2003300267 A JP2003300267 A JP 2003300267A JP 2004257722 A JP2004257722 A JP 2004257722A
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Japan
Prior art keywords
valve
valve body
contact portion
stopper
motor
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JP2003300267A
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JP2004257722A5 (en
JP4317405B2 (en
Inventor
Norio Suzuki
教郎 鈴木
Koji Higuchi
浩次 樋口
Hitoshi Umezawa
仁志 梅澤
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Fujikoki Corp
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Fujikoki Corp
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Application filed by Fujikoki Corp filed Critical Fujikoki Corp
Priority to JP2003300267A priority Critical patent/JP4317405B2/en
Priority to KR1020030099734A priority patent/KR101046100B1/en
Priority to CNB2004100010917A priority patent/CN100339617C/en
Publication of JP2004257722A publication Critical patent/JP2004257722A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • F25B41/35—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

<P>PROBLEM TO BE SOLVED: To easily mount and demount a driving part and a valve element part. <P>SOLUTION: In this electric valve A which is composed of the driving part 10 and the valve element part 20 and wherein the valve element 30 mounted on the valve element part 20 is energized in a state of being projectable to a driving part 10 side by refrigerant pressure, a stopper 40 is mounted between a valve main body 21 and the valve element 30 for inhibiting the projection of the valve element 30, when the driving part 10 and the valve element part 20 are separated from each other. The stopper 40 is mounted between the valve main body 21 and a valve part 32 constituting the valve element 30. The stopper 40 comprises a main body contact part 43 and a valve element contact part 44, composed of an elastic material, the main body contact part 43 is locked on an inner face of the valve main body 21, and the valve element contact part 44 is locked on an outer peripheral part of the valve part 32. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

本発明は、冷凍サイクル等に用いる電動弁に関し、更に詳しくは、エアコンにおける冷媒の流量制御や、風呂、シャワーにおける燃焼ガス、空気、温水、液体燃料などの流量制御に用いられる電動弁に関するものである。   The present invention relates to a motor-operated valve used for a refrigeration cycle or the like, and more particularly to a motor-operated valve used for controlling a flow rate of a refrigerant in an air conditioner or a flow rate of a combustion gas, air, hot water, liquid fuel, or the like in a bath or shower. is there.

従来の電動弁は、通常、弁体部と駆動部とから構成されており、これら両部材は着脱可能に構成されている。このような電動弁は、例えば、下記の特許文献１に記載されている。
この特許文献１に記載の電動弁Ａを、図１０を用いて説明すると、駆動部１０は、ステッピングモータ、減速機構等からなり、出力回転軸１９を回転駆動させるように構成され、この回転駆動が出力回転軸１９の上下動に変換され、弁体部２０側の弁体３０を上下動させる。 A conventional motor-operated valve usually includes a valve body and a drive unit, and these two members are configured to be detachable. Such a motor-operated valve is described, for example, in Patent Document 1 below.
The motor-operated valve A described in Patent Document 1 will be described with reference to FIG. 10. The drive unit 10 includes a stepping motor, a speed reduction mechanism, and the like, and is configured to rotationally drive the output rotary shaft 19. Is converted into a vertical movement of the output rotation shaft 19, and the valve body 30 on the valve body 20 side is moved up and down.

また、上記弁体部２０は円筒状の筒体からなり、弁体部２０には第１流路２４と第２流路２５とが弁室２２を介して連結され、また、弁室２２内には弁体３０を構成する弁部３２が配置されると共に、前記弁体３０はベローズ３３に連結されている。また、ベローズ３３の上端は上ベローズ支持環２３を介して弁本体２１の上部に支持されている。   The valve body 20 is formed of a cylindrical body, and a first flow path 24 and a second flow path 25 are connected to the valve body 20 via a valve chamber 22. Is provided with a valve portion 32 constituting a valve body 30, and the valve body 30 is connected to a bellows 33. The upper end of the bellows 33 is supported on the upper part of the valve body 21 via the upper bellows support ring 23.

そして、弁体部２０に対する駆動部１０の取付は、弁体部２０内に弁体３０及びベローズ３３を配置した上、ベローズ３３の上端を上ベローズ支持環２３を介して取り付け、次にホルダ１５を弁体部２０の上面に当接し、且つ、出力回転軸１９を、ボール２７を介して弁体３０の上面に当接したうえ、ナット２６を回転させて一体としている。   The drive unit 10 is attached to the valve body 20 by arranging the valve body 30 and the bellows 33 in the valve body 20, attaching the upper end of the bellows 33 via the upper bellows support ring 23, and then holding the holder 15. Is in contact with the upper surface of the valve body portion 20, and the output rotary shaft 19 is in contact with the upper surface of the valve body 30 via the ball 27, and the nut 26 is rotated to be integrated.

特開平１１−８２７９６号公報JP-A-11-82796

その後、駆動部１０の更新・取り替え等のために、電動弁Ａに冷媒圧を作用させたまま、弁体部２０から駆動部１０を取外したり、取り付けたりする場合があるが、この場合、冷媒圧が低いときは格別の困難性はなく、また、弁体部２０から駆動部１０を取り外すには、ナット２６を緩めてナット２６と共に分離させることによって行われ、これらの作業に関しては格別困難性はなかった。   Thereafter, in order to update or replace the drive unit 10, the drive unit 10 may be removed from or attached to the valve body 20 while the refrigerant pressure is applied to the electric valve A. When the pressure is low, there is no particular difficulty, and the drive unit 10 is detached from the valve body 20 by loosening the nut 26 and separating it together with the nut 26. There was no.

しかしながら、冷媒圧が高い場合には、駆動部１０を弁体部２０から分離したとき、冷媒圧によってベローズ３３が縮小して、弁体３０が、図１０に示すように上動して弁本体２１の上方に突出する。そして、この状態において、再度駆動部１０を弁体部２０に装着するときは、作業者は駆動部１０を弁体部２０上部に位置決めした上、高冷媒圧に抗して弁体３０を押し下げた状態でナット２６を回転させて取り付ける必要があり、この作業は容易ではない。   However, when the refrigerant pressure is high, when the drive unit 10 is separated from the valve body 20, the bellows 33 contracts due to the refrigerant pressure, and the valve body 30 moves upward as shown in FIG. Projecting above 21. In this state, when the drive unit 10 is mounted on the valve body 20 again, the operator positions the drive unit 10 on the valve body 20 and pushes down the valve 30 against the high refrigerant pressure. It is necessary to rotate and attach the nut 26 in a state in which the nut 26 is closed, and this operation is not easy.

本発明は、この問題を解決することを課題として発明されたものであり、本発明の課題は、駆動部１０と弁体部２０との取付け・取り外しを容易にすることにある。   The present invention has been made to solve this problem, and an object of the present invention is to facilitate attachment and detachment of the drive unit 10 and the valve body 20.

上記課題を達成するために、以下の手段を採用した。即ち、
請求項１記載の電動弁は、駆動部と弁体部とからなり、該弁体部に配置されている弁体は冷媒圧により駆動部側に突出勝手に付勢されている電動弁であって、駆動部と弁体部とを分離したとき、弁体の突出を阻害するストッパを弁本体と弁体との間に配置させたことを特徴とする。 In order to achieve the above object, the following means were adopted. That is,
The motor-operated valve according to claim 1 comprises a drive unit and a valve body, and the valve body disposed on the valve body is a motor-operated valve that is urged toward the drive unit by a refrigerant pressure. When the drive unit and the valve body are separated from each other, a stopper that inhibits the protrusion of the valve body is arranged between the valve body and the valve body.

請求項２記載の電動弁は、請求項１記載の電動弁において、ストッパは、上記弁本体と、上記弁体を構成する弁部との間に配置させたことを特徴とする。   According to a second aspect of the present invention, there is provided the electric valve according to the first aspect, wherein the stopper is disposed between the valve main body and a valve portion forming the valve element.

請求項３記載の電動弁は、請求項２記載の電動弁において、ストッパは、弾性素材からなる本体当接部と、弁体当接部と、を具備し、前記本体当接部は弁本体の内面に係止され、前記弁体当接部は弁部の外周部に係止されることを特徴とする。   According to a third aspect of the present invention, in the electric valve according to the second aspect, the stopper includes a main body contact portion made of an elastic material and a valve body contact portion, and the main body contact portion is a valve main body. The valve body contact portion is locked to an outer peripheral portion of the valve portion.

請求項４記載の電動弁は、請求項３記載の電動弁において、ストッパは、円環状の板体からなる基板と、該基板と一体的に形成された舌片状の本体当接部と、弁体当接部と、からなることを特徴とする。   According to a fourth aspect of the present invention, there is provided the electric valve according to the third aspect, wherein the stopper comprises: a base plate formed of an annular plate; a tongue-shaped main body contact portion formed integrally with the base plate; And a valve body contact portion.

請求項５記載の電動弁は、請求項３記載の電動弁において、ストッパは、円環状の板体からなる基板と、該基板と一体的に形成された板状の上記本体当接部と、上記弁体当接部とからなることを特徴とする。   According to a fifth aspect of the present invention, there is provided the electric valve according to the third aspect, wherein the stopper comprises: a substrate formed of an annular plate; and the plate-shaped main body contact portion formed integrally with the substrate. It is characterized by comprising the valve body contact portion.

請求項６記載の電動弁は、請求項２記載の電動弁において、ストッパは、弾性素材からなる本体上部当接部と、円環状の基板と、本体下部当接部と、弁体当接部と、を具備し、前記本体上部当接部と本体下部当接部は弁本体の内面に係止され、前記基板は弁本体の内面に当接され、前記弁体当接部は弁部に係止可能に形成されることを特徴とする。   According to a sixth aspect of the present invention, there is provided the electrically operated valve according to the second aspect, wherein the stopper includes an upper body contact portion made of an elastic material, an annular substrate, a lower body contact portion, and a valve body contact portion. Wherein the upper body contact portion and the lower body contact portion are locked on the inner surface of the valve body, the substrate is abutted on the inner surface of the valve body, and the valve body contact portion is provided on the valve portion. It is characterized by being formed to be able to be locked.

請求項７記載の電動弁は、請求項６記載の電動弁において、ストッパは、円環状の基板と、該基板の上部に一体的に形成された舌片状の本体上部当接部と、前記基板の下部に一体的に形成された舌片状の本体下部当接部及び弁体当接部とからなることを特徴とする。   In the motor-operated valve according to claim 7, in the motor-operated valve according to claim 6, the stopper comprises: an annular substrate; a tongue-shaped main body upper contact portion integrally formed on an upper portion of the substrate; It is characterized by comprising a tongue-shaped body lower contact portion and a valve body contact portion formed integrally with the lower portion of the substrate.

請求項１記載の電動弁により、駆動部と弁体部との取付け・取り外しが容易になる。また、簡単な構成でストッパ作用を実現できる。更に、ストッパ自体も取り付けが容易となり、且つ、その製造も容易である。   The electric valve according to the first aspect facilitates attachment and detachment of the drive unit and the valve body. Further, a stopper function can be realized with a simple configuration. Further, the stopper itself can be easily attached, and its manufacture is also easy.

また、請求項２記載の電動弁の特徴により、簡単な構成で弁体の上動を防ぐことができる。   Further, with the features of the motor-operated valve according to the second aspect, the valve body can be prevented from moving up with a simple configuration.

また、請求項３記載の電動弁の特徴により、弁本体へのストッパの装着が容易となる。   In addition, the feature of the motor-operated valve according to the third aspect makes it easy to mount the stopper on the valve body.

また、請求項４記載の電動弁の特徴により、簡単な構成のストッパを容易に製造することができる。また、弁本体への装着の容易になる。なお、本体当接部と弁体当接部の数・形状は適宜選択しうるものとする。   According to the feature of the electric valve according to the fourth aspect, a stopper having a simple configuration can be easily manufactured. In addition, mounting on the valve body becomes easy. The number and shape of the main body contact portion and the valve body contact portion can be appropriately selected.

また、請求項５記載の電動弁の特徴により、ストッパを容易に製造することができる。   Further, the stopper can be easily manufactured by the feature of the electric valve according to the fifth aspect.

また、請求項６記載の電動弁の特徴により、ストッパの弁本体への安定的な装着状態が得られる。   According to the feature of the electric valve according to the sixth aspect, a stable mounting state of the stopper to the valve body can be obtained.

また、請求項７記載の電動弁の特徴により、ストッパの構成が簡略化し、製造が容易になる。   In addition, the configuration of the electric valve according to claim 7 simplifies the configuration of the stopper and facilitates manufacture.

以下、実施例について説明する。   Hereinafter, examples will be described.

本発明の電動弁の実施例１を、図面を用いて説明する。図１はその概略縦断面図。図２はその要部（ストッパ）の斜視図、図３はその要部（ストッパ）の別形態の斜視図、図４は同要部（ストッパ）の作用説明図である。   First Embodiment A motor-operated valve according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic longitudinal sectional view thereof. 2 is a perspective view of the main part (stopper), FIG. 3 is a perspective view of another embodiment of the main part (stopper), and FIG. 4 is an operation explanatory view of the main part (stopper).

本電動弁Ｂは、駆動部１０及び弁体部２０からなる。
先ず、駆動部１０について説明する。駆動部１０は、ケース本体１１に搭載されたステッピングモータ（符号なし）、該ステッピングモータをカバーするモータケース１２等から成る。なお、ステッピングモータにはリード線１７が設けられている。ケース本体１１の下部には各種ギヤからなる減速機構１３が配置されている。 The motor-operated valve B includes a drive unit 10 and a valve body 20.
First, the driving unit 10 will be described. The drive unit 10 includes a stepping motor (no reference numeral) mounted on a case main body 11, a motor case 12 that covers the stepping motor, and the like. The stepping motor is provided with a lead wire 17. A reduction mechanism 13 composed of various gears is disposed below the case body 11.

減速機構１３は、ステッピングモータで駆動され、出力ギア１８を介して出力回転軸１９に伝達される。前記出力回転軸１９は、既述のようにその上端を軸受部１４に回転自在に軸支され、その下部はケース本体１１に設けられているホルダ１５に軸支されている。ホルダ１５の中心部には、水平断面円形の孔が設けられ、その内面には雌ねじ部１５ａが形成され、また、出力回転軸１９のホルダ１５との当接部には、上記雌ねじ部１５ａと螺合する雄ねじ部１９ａが形成されている。更に、このホルダ１５はケース本体１１内に支持されている。また、ケース本体１１の下部には弁体部２０取付用の袋状のナット２６が付設されている。また、この出力回転軸１９の下方には凹部１９ｃが形成され、該凹部１９ｃにはボール２７が装着される。   The speed reduction mechanism 13 is driven by a stepping motor and transmitted to an output rotation shaft 19 via an output gear 18. As described above, the output rotary shaft 19 has its upper end rotatably supported by the bearing portion 14, and its lower portion is supported by the holder 15 provided in the case body 11. A hole having a circular horizontal cross section is provided at the center of the holder 15, and a female screw portion 15 a is formed on the inner surface of the hole. The female screw portion 15 a is formed at a contact portion of the output rotary shaft 19 with the holder 15. A male screw portion 19a to be screwed is formed. Further, the holder 15 is supported in the case main body 11. Further, a bag-shaped nut 26 for attaching the valve body 20 is attached to a lower portion of the case body 11. A recess 19c is formed below the output rotation shaft 19, and a ball 27 is mounted in the recess 19c.

なお、符号１６はパッキンであり、弁体部２０とケース本体１１との間に設けられる。また、符号１６ａはリングであり、ケース本体１１とナット２６との間に設けられている。   Reference numeral 16 denotes a packing, which is provided between the valve body 20 and the case body 11. Reference numeral 16a denotes a ring, which is provided between the case main body 11 and the nut 26.

次に、弁体部２０について説明する。
上記ケース本体１１の下部には袋状のナット２６が係合されており、駆動部１０は該ナット２６を用いて弁体部２０の弁本体２１に取付けられる。
該弁本体２１の軸芯部には、弁室２２が形成されると共に、該弁室２２の側部には流体の第１流路２４が設けられ、かつその下部には第２流路２５が設けられる。また、上記弁室２２には弁棒３１及び弁部３２からなる弁体３０が上下に移動可能に配置され、弁本体２１に設けられた弁座２１ａに当接したとき電動弁Ｂは閉となり、上動したとき開となるように作動される。なお、符号３１ｂは弁棒３１の上端部に圧入されたブッシュであり、ボール２７の受け部３１ｃを形成している。 Next, the valve body 20 will be described.
A bag-shaped nut 26 is engaged with a lower portion of the case main body 11, and the driving unit 10 is attached to the valve main body 21 of the valve body 20 using the nut 26.
A valve chamber 22 is formed in a shaft portion of the valve body 21, a first flow path 24 for fluid is provided on a side of the valve chamber 22, and a second flow path 25 is provided below the first flow path 24. Is provided. In the valve chamber 22, a valve body 30 including a valve rod 31 and a valve portion 32 is disposed so as to be movable up and down. When the valve body 30 comes into contact with a valve seat 21a provided in the valve body 21, the electric valve B is closed. , Which are operated to be opened when moved upward. Reference numeral 31b denotes a bush press-fitted into the upper end of the valve stem 31, which forms a receiving portion 31c for the ball 27.

弁本体２１の内面には、図４に示すように、後述のストッパ４０における本体当接部４３の係止用の段部からなる係合段部２１ｂがリング状に形成される。そして、この係合段部２１ｂの下部には、後述のストッパ４０における基板４１の下部を支持する受け段部２１ｃが形成される。この受け段部２１ｃから下部はその上部と比べて径小部となっている。この径小部が弁室２２を構成することになる。   As shown in FIG. 4, an engagement step portion 21 b formed of a step portion for locking the body contact portion 43 of the stopper 40 described below is formed on the inner surface of the valve body 21 in a ring shape. A receiving step 21c that supports the lower portion of the substrate 41 in the stopper 40 described below is formed below the engaging step 21b. The lower portion from the receiving step portion 21c is smaller in diameter than the upper portion. This small diameter portion forms the valve chamber 22.

また、上記弁部３２の外周肩部には、後述のストッパ４０における弁体当接部４４の下端を係止させるためのリング状段部からなる係止段部３２ａが形成される。また、弁室２２には上ベローズ支持環２３がかしめにより付設されていると共に、弁棒３１の下部には下ベローズ支持部３１ａが形成され、前記上ベローズ支持環２３と下ベローズ支持部３１ａとの間にはベローズ３３が設けられている。   A locking step portion 32a formed of a ring-shaped step portion for locking the lower end of the valve body contact portion 44 in the stopper 40 described later is formed on the outer peripheral shoulder of the valve portion 32. An upper bellows support ring 23 is attached to the valve chamber 22 by caulking, and a lower bellows support portion 31a is formed below the valve rod 31. The upper bellows support ring 23, the lower bellows support portion 31a, A bellows 33 is provided therebetween.

ストッパ４０は、図１，４に示すように、弁本体２１と、弁体３０を構成する弁部３２との間に配置される。ストッパ４０は、図２に示すように、例えば、金属弾性板材からなる円環状の基板４１と、該基板４１と一体的に形成される舌片状の本体当接部４３と弁体当接部４４とから構成されている。なお、符号４２は基板４１の中心開口部である。   The stopper 40 is arranged between the valve main body 21 and the valve portion 32 constituting the valve body 30 as shown in FIGS. As shown in FIG. 2, the stopper 40 includes, for example, an annular substrate 41 made of a metal elastic plate, a tongue-shaped body contact portion 43 integrally formed with the substrate 41, and a valve body contact portion. 44. Reference numeral 42 denotes a central opening of the substrate 41.

本体当接部４３は弁本体２１の内面に弾性的に係止され、弁体当接部４４は弁部３２の外周部に係止される。そのために、本体当接部４３の外形は、弁本体２１の内径より若干大きく形成される。また、弁体当接部４４の先端外径は、上記弁部３２の係止段部３２ａと略同径に形成される。   The body contact portion 43 is elastically locked on the inner surface of the valve body 21, and the valve body contact portion 44 is locked on the outer peripheral portion of the valve portion 32. Therefore, the outer shape of the main body contact portion 43 is formed slightly larger than the inner diameter of the valve main body 21. The outer diameter of the distal end of the valve body contact portion 44 is formed to be substantially the same diameter as the locking step portion 32 a of the valve portion 32.

なお、ストッパ４０の形状は、弁体３０を所定以上上動させない機能を有するものであれば他の形状、例えば、図３に示すストッパ４０’は、円環状の板体からなる基板４１’と、該基板４１’と一体的に形成される曲板状の本体当接部４３’と舌片状の弁体当接部４４’とからなる形状であってもよい。なお、符号４２’は基板４１’の中心開口部である。なお、このストッパ４０’は、基板４１’と本体当接部４３’とがその一個所において横断的に分離している。この構成により、基板４１’と本体当接部４３’の径の変更が容易になるから、弁本体２１へのストッパ４０’の装着が容易になる。   The shape of the stopper 40 may be any other shape as long as it has a function of preventing the valve body 30 from moving upward by a predetermined amount. For example, the stopper 40 ′ shown in FIG. The shape may be composed of a curved plate-shaped main body contact portion 43 'formed integrally with the substrate 41' and a tongue-shaped valve body contact portion 44 '. Reference numeral 42 'denotes a central opening of the substrate 41'. In the stopper 40 ', the substrate 41' and the main body contact portion 43 'are separated transversely at one place. With this configuration, it is easy to change the diameter of the substrate 41 ′ and the body contact portion 43 ′, so that the mounting of the stopper 40 ′ to the valve body 21 becomes easy.

次に、上記実施例１の電動弁Ｂの組立について説明する。弁体部２０に対する駆動部１０の組立は、先ず、ベローズ３３の下端部を弁棒３１下部の下ベローズ支持部３１ａに装着すると共に、ベローズ３３の上端部に上ベローズ支持環２３を装着しておく。   Next, assembly of the motor-operated valve B of the first embodiment will be described. To assemble the drive unit 10 with respect to the valve body 20, first, the lower end of the bellows 33 is mounted on the lower bellows support 31 a under the valve rod 31, and the upper bellows support ring 23 is mounted on the upper end of the bellows 33. deep.

また、弁本体２１内には、上方からストッパ４０を挿入・嵌合させる。その結果、図４に示すように、ストッパ４０は、受け段部２１ｃに基板４１の下面が当接すると共に、本体当接部４３の上端部が係合段部２１ｂに係合・弾着した状態となる。   The stopper 40 is inserted and fitted into the valve body 21 from above. As a result, as shown in FIG. 4, the stopper 40 is in a state in which the lower surface of the substrate 41 abuts on the receiving step portion 21c, and the upper end portion of the main body contact portion 43 is engaged and elastically engaged with the engaging step portion 21b. It becomes.

次に、弁本体２１内に、上方から上記弁体３０、ベローズ３３、及び上ベローズ支持環２３の一体物を挿入し、弁部３２を基板４１の中心開口部４２に挿通させて、係止段部３２ａに弁体当接部４４の下端を係合させ、且つ、上ベローズ支持環２３を弁本体２１の上端部にカシメ固定する。以上で弁体部２０の組立は完了する。
そして、上記弁体部２０に対して、ホルダ１５を弁体部２０の上面に当接し、且つ、出力回転軸１９を、ボール２７を介して弁体３０の上面に当接したうえ、ナット２６を回転させて一体とすれば、電動弁Ｂの組立は完了する。但し、ベローズ３３の上端及び下端を固着するハンダ付けは、図中省略してある。 Next, an integrated body of the valve body 30, the bellows 33, and the upper bellows support ring 23 is inserted into the valve main body 21 from above, and the valve portion 32 is inserted into the center opening portion 42 of the substrate 41 to be locked. The lower end of the valve body contact portion 44 is engaged with the step portion 32a, and the upper bellows support ring 23 is swaged and fixed to the upper end portion of the valve body 21. Thus, the assembly of the valve body 20 is completed.
Then, the holder 15 contacts the upper surface of the valve body 20, and the output rotary shaft 19 contacts the upper surface of the valve body 30 via the ball 27, and the nut 26 Is rotated to be integrated, the assembly of the motor-operated valve B is completed. However, soldering for fixing the upper and lower ends of the bellows 33 is omitted in the figure.

次に、上記実施例１の電動弁Ｂの作動について説明する。上記電動弁Ｂは、冷凍システムを構成する第１流路２４及び第２流路２５の間に介装され、両流路間の流体の流れを制御する。電動弁Ｂの開閉に当っては、リード線１７を介してステッピングモータ（符号なし）にパルスが印加される。その結果、パルス数に応じて減速機構１３を介して出力回転軸１９が回転し、その回転によって出力回転軸１９は下動する（なお、言うまでもなく、ステッピングモータが逆回転すれば、その回転数に応じて上動することになる。）。   Next, the operation of the motor-operated valve B of the first embodiment will be described. The motor-operated valve B is interposed between the first flow path 24 and the second flow path 25 constituting the refrigeration system, and controls the flow of fluid between the two flow paths. In opening and closing the motor-operated valve B, a pulse is applied to the stepping motor (no code) via the lead wire 17. As a result, the output rotation shaft 19 rotates through the speed reduction mechanism 13 in accordance with the pulse number, and the rotation causes the output rotation shaft 19 to move downward. (Of course, if the stepping motor rotates reversely, the rotation speed increases. Will move up in response to this.)

そして出力回転軸１９の下動によりボール２７を介して弁棒３１を下方に押圧する。またこの間、弁室２２内の流体圧がベローズ３３の外面に作用し、所定値以上の流体圧のとき、ベローズ３３を縮方向に作用させ、弁を開方向に作用させる。また、弁体３０が下動してもストッパ４０の位置は変わらず、弁体３０の所定範囲内の上下動に影響を及ぼすことはない。しかし、弁体３０が所定範囲以上に上動することは許容しない。   Then, the valve shaft 31 is pressed downward via the ball 27 by the downward movement of the output rotation shaft 19. During this time, the fluid pressure in the valve chamber 22 acts on the outer surface of the bellows 33, and when the fluid pressure is equal to or higher than a predetermined value, the bellows 33 acts in the contracting direction and the valve acts in the opening direction. In addition, even if the valve element 30 moves down, the position of the stopper 40 does not change and does not affect the vertical movement of the valve element 30 within a predetermined range. However, the valve body 30 is not allowed to move upward beyond a predetermined range.

その後、駆動部１０の取り替え等のために、電動弁Ｂに冷媒圧を作用させたまま、弁体部２０から駆動部１０を取外す場合は、ナット２６を緩めてホルダ１５をナット２６と共に分離させることによって行われる。このとき、駆動部１０を弁体部２０から分離させても、従来のように冷媒圧によってベローズ３３が縮小され、弁体３０が上動することはない。何故なら、ストッパ４０が弁体３０の上動を阻止しているからである。したがって、再度駆動部１０を装着するときも、弁体３０が上動していないから容易に行うことができる。   Thereafter, when the drive unit 10 is removed from the valve body 20 while the refrigerant pressure is applied to the electric valve B for replacement of the drive unit 10 or the like, the nut 26 is loosened to separate the holder 15 together with the nut 26. This is done by: At this time, even if the drive section 10 is separated from the valve body section 20, the bellows 33 is reduced by the refrigerant pressure as in the related art, and the valve body 30 does not move upward. This is because the stopper 40 prevents the valve element 30 from moving upward. Therefore, when the drive unit 10 is mounted again, the operation can be easily performed because the valve body 30 does not move upward.

次に、本発明の実施例２について説明する。図５はその要部縦断面図であり、上記実施例１と同一構成部分には、図５において図１乃至図４に付与した符号と同一符号を付すことによってその説明を省略する。   Next, a second embodiment of the present invention will be described. FIG. 5 is a longitudinal sectional view of a main part thereof. The same components as those in the first embodiment are denoted by the same reference numerals as those shown in FIGS. 1 to 4 in FIG.

実施例２では、弁体３０が、上動して弁本体２１の上方に突出したときに、ストッパ４０に当接する弁部３２の当接部３２ｂを、実施例１のように係止段部３２ａを設けることなく、他の面と同様の傾斜平坦面としたものである。実施例２はこのように構成したことにより、弁部３２の構成がシンプルとなって、加工も容易になる。なお、実施例２において、ストッパ４０の弁体当接部４４の下端縁（弁部３２の当接部３２ｂへの当接面）は、当接部３２ｂの傾斜角に合わせた傾斜面としてもよい。   In the second embodiment, when the valve body 30 moves upward and protrudes above the valve body 21, the contact portion 32b of the valve portion 32 that contacts the stopper 40 is changed to the locking step portion as in the first embodiment. 32a is a flat inclined surface similar to the other surfaces without providing 32a. In the second embodiment, the configuration is such that the configuration of the valve portion 32 is simplified, and processing is facilitated. In the second embodiment, the lower end edge of the valve body contact portion 44 of the stopper 40 (the contact surface of the valve portion 32 with the contact portion 32b) may be an inclined surface that matches the inclination angle of the contact portion 32b. Good.

そして、この実施例２においても、駆動部１０を弁体部２０から分離させる場合、ストッパ４０が弁体３０の上動を阻止するから、冷媒圧によってベローズ３３が縮小されて弁体３０が所定以上の高さに上動することはない。また、再度駆動部１０を装着するときも、弁体３０が上動していないから容易に行うことができる。   In the second embodiment as well, when the driving unit 10 is separated from the valve body 20, the stopper 40 prevents the valve body 30 from moving upward. It does not move up to the above height. Also, when the drive unit 10 is mounted again, the operation can be easily performed because the valve body 30 does not move upward.

次に、本発明の実施例３について説明する。図６はその要部縦断面図であり、図７は図６の要部を更に拡大した断面図、図８はそのストッパ５０の拡大断面図である。なお、実施例３において、上記実施例１と同一構成部分には、図６乃至図７に図１乃至図４に付与した符号と同一符号を付すことによってその説明を省略する。   Next, a third embodiment of the present invention will be described. FIG. 6 is a longitudinal sectional view of the main part, FIG. 7 is a cross-sectional view further enlarging the main part of FIG. 6, and FIG. 8 is an enlarged cross-sectional view of the stopper 50. In the third embodiment, the same components as those in the first embodiment are denoted by the same reference numerals in FIGS. 6 and 7 as those in FIGS.

弁本体２１の内面部分には、後述のストッパ５０の装着凹部Ｃが形成される。該装着凹部Ｃは、弁本体２１の内面に対して略直角状の段差からなる上係合段部２１ｂと、該上係合段部２１ｂに連続してその下方の弁本体２１の内面部分と略平行な均一内径からなる背面支持部２１ｄと、背面支持部２１ｄの下方の下係合段部２１ｅと、からなる。また、上係合段部２１ｂと下係合段部２１ｅとの距離は、後述のストッパ５０の本体上部当接部５３の上端と本体下部当接部５５の下端との距離と同じか、若しくは、やや大とすることが望ましい。そして、これらの係合段部２１ｂ、背面支持部２１ｄ及び下係合段部２１ｅによってストッパ５０を支持することになる。   A mounting recess C for a stopper 50 described later is formed in the inner surface of the valve body 21. The mounting recess C has an upper engaging step portion 21b formed of a step substantially perpendicular to the inner surface of the valve body 21, and an inner surface portion of the valve body 21 below the upper engaging step portion 21b. The back support 21d has a substantially parallel uniform inner diameter, and a lower engaging step 21e below the back support 21d. The distance between the upper engaging step 21b and the lower engaging step 21e is the same as the distance between the upper end of the main body upper contact portion 53 and the lower end of the main body lower contact portion 55 of the stopper 50, which will be described later, or It is desirable that the size be slightly larger. Then, the stopper 50 is supported by the engaging step 21b, the back support 21d, and the lower engaging step 21e.

また、弁部３５の上面部、特に、後述のストッパ５０の弁体当接部５４が当接する部分は、平坦状（平坦面部３５ｂ）に形成される。また、この弁部３５の軸芯部には上下に貫通する異径の中心孔３５ａが形成され、その上部には弁体３０の下部が嵌合・装着されている。   In addition, the upper surface of the valve portion 35, particularly, the portion of the stopper 50 to be in contact with the valve body contact portion 54 of the stopper 50 described later is formed in a flat shape (flat surface portion 35b). A central hole 35a of different diameter penetrating vertically is formed in a shaft core portion of the valve portion 35, and a lower portion of the valve body 30 is fitted and mounted on an upper portion thereof.

ストッパ５０は、その基本形において、実施例１，２同様、金属弾性板材からなり、円環状で所定幅の均一外径の円環状板体からなる基板５１と、該基板５１と一体で且つ上方に開き勝手に形成される舌片状で複数枚の本体上部当接部５３と、該基板５１と一体的で且つ下方に均一径に形成される舌片状で複数枚の本体下部当接部５５と、該本体下部当接部５５の間に隣接して下方内側に傾斜して形成される舌片状で複数枚の弁体当接部５４と、からなる。   As in the first and second embodiments, the stopper 50 has a base plate 51 made of a metal elastic plate material and a ring-shaped plate having a uniform outer diameter and a predetermined width, as in the first and second embodiments. A plurality of tongue-shaped main body upper contact portions 53 which are formed freely and a plurality of tongue-shaped plurality of main body lower contact portions 55 which are formed integrally with the substrate 51 and have a uniform diameter downward. And a plurality of tongue-shaped valve body abutting portions 54 formed between the body lower abutting portions 55 and inclined downward and inwardly.

そして、上記本体上部当接部５３は、円環状板体からなる基板５１上縁に所定間隔をおいて、また、前記基板５１下縁には、例えば、本体下部当接部５５の数が１に対して弁体当接部５４の数が２の割合で連続的に形成されている。   The main body upper contact portion 53 is spaced from the upper edge of the substrate 51 made of an annular plate by a predetermined distance, and the lower edge of the substrate 51 has, for example, one main body lower contact portion 55. The number of the valve body contact portions 54 is continuously formed at a ratio of two.

更に、ストッパ５０は、円環状板体からなる基板５１を一箇所にて分離してもよいのは勿論である。図９に示すストッパ５０は、弁体当接部５４と本体下部当接部５５の間において、基板５１を横断的に分離している。この構成により、基板５１の径の変更が容易になるから、弁本体２１の装着凹部Ｃへのストッパ５０の装着が容易になる。   Further, the stopper 50 may, of course, separate the substrate 51 made of an annular plate at one place. The stopper 50 shown in FIG. 9 transversely separates the substrate 51 between the valve body contact portion 54 and the main body lower contact portion 55. With this configuration, the diameter of the substrate 51 can be easily changed, so that the stopper 50 can be easily mounted in the mounting recess C of the valve body 21.

上記ストッパ５０は、実施例１，２と同様に弾性変形させながら、装着凹部Ｃに嵌合される。図５乃至図７は嵌合後の状態を示しており、ストッパ５０の本体上部当接部５３は係合段部２１ｂに係止され、円環状の基板５１は背面支持部２１ｄに当接して支持され、そして、本体下部当接部５５は弁本体２１内部に当接した状態で配置される。   The stopper 50 is fitted into the mounting recess C while being elastically deformed as in the first and second embodiments. FIGS. 5 to 7 show the state after the fitting, in which the upper contact portion 53 of the stopper 50 is locked by the engagement step portion 21b, and the annular substrate 51 contacts the back support portion 21d. The main body lower contact portion 55 is supported and arranged in a state of contact with the inside of the valve main body 21.

実施例３の本発明は、上記構成により、他の実施例１，２同様の作用効果を奏すると共に、ストッパ５０が弁本体２１側に緊密に支持される。
そして、この実施例３においても、駆動部１０を弁体部２０から分離させるとき、ストッパ５０が平坦面部３５ｂに当接してストッパ５０が弁体３０の上動を阻止するから、冷媒圧によってベローズ３３が縮小されて弁体３０が所定以上の高さに上動することはない。また、再度駆動部１０を装着するときも、弁体３０が上動していないから容易に行うことができる。また、実施例３においては、ストッパ５０の装着凹部Ｃへの嵌合状態が安定しており、機能性・耐久性の高い電動弁とすることができる。 According to the third embodiment of the present invention, with the above-described configuration, the same operation and effect as those of the other first and second embodiments are obtained, and the stopper 50 is tightly supported on the valve body 21 side.
In the third embodiment as well, when the drive unit 10 is separated from the valve body 20, the stopper 50 contacts the flat surface 35 b and the stopper 50 prevents the valve 30 from moving upward. The valve body 30 does not move upward to a predetermined height due to the contraction of the valve 33. Also, when the drive unit 10 is mounted again, the operation can be easily performed because the valve body 30 does not move upward. Further, in the third embodiment, the fitting state of the stopper 50 to the mounting concave portion C is stable, and a highly functional and durable electric valve can be obtained.

本発明に係る実施例１の概略縦断面図。1 is a schematic vertical sectional view of a first embodiment according to the present invention. 同実施例１の要部（ストッパ）の斜視図。FIG. 3 is a perspective view of a main part (stopper) of the first embodiment. 同実施例１の要部（ストッパ）の別形態の斜視図。FIG. 4 is a perspective view of another embodiment of a main part (stopper) of the first embodiment. 同要部（ストッパ）の作用説明図。FIG. 5 is an explanatory view of the operation of the main part (stopper). 本発明に係る実施例２の要部縦断面図。FIG. 7 is a vertical sectional view of a main part of a second embodiment according to the present invention.

本発明に係る実施例３の要部縦断面図。FIG. 9 is a vertical sectional view of a main part of a third embodiment according to the present invention. 図６の要部を更に拡大した断面図。FIG. 7 is an enlarged cross-sectional view of a main part of FIG. 6. 図７のストッパの拡大断面図。FIG. 8 is an enlarged sectional view of the stopper of FIG. 7. 図８のストッパの変形例を示す拡大断面図。FIG. 9 is an enlarged sectional view showing a modification of the stopper of FIG. 8. 従来技術にかかる電動弁Ａの概略説明図。The schematic explanatory drawing of the electric valve A concerning a prior art. 同従来技術にかかる電動弁Ａの作用説明図。Operation | movement explanatory drawing of the electric valve A concerning the same prior art.

符号の説明Explanation of reference numerals

Ａ・・電動弁（従来） Ｂ・・電動弁（本発明） Ｃ・・装着凹部
１０・・駆動部 １１・・ケース本体 １２・・モータケース
１３・・減速機構 １４・・軸受部 １５・・ホルダ １５ａ・・雌ねじ部
１６・・パッキン １６ａ・・リング １７・・リード線 １８・・出力ギア
１９・・出力回転軸 １９ａ・・雄ねじ部 １９ｃ・・凹部
２０・・弁体部 ２１・・弁本体 ２１ａ・・弁座 ２１ｂ・・（上）係合段部
２１ｃ・・受け段部 ２１ｄ・・背面支持部 ２１ｅ・・下係合段部
２２・・弁室 ２３・・上ベローズ支持環 ２４・・第１流路
２５・・第２流路 ２６・・ナット ２７・・ボール A ····································································································· Holder 15a female screw part 16 packing 16a ring 17 lead wire 18 output gear 19 output rotary shaft 19a male screw part 19c recess 20 valve body 21 valve body 21a ... valve seat 21b ... (upper) engaging step 21c ... receiving step 21d ... back support 21e ... lower engaging step 22 ... valve chamber 23 ... upper bellows support ring 24 ... First flow path 25 Second flow path 26 Nut 27 Ball

３０・・弁体 ３１・・弁棒 ３１ａ・・下ベローズ支持部
３１ｂ・・ブッシュ ３１ｃ・・受け部
３２・・弁部 ３２ａ・・係止段部 ３２ｂ・・当接部 ３３・・ベローズ
３５・・弁部（実施例３） ３５ａ・・中心孔 ３５ｂ・・平坦面部
４０，４０’・・ストッパ ４１，４１’・・基板
４２，４２’・・中心開口部 ４３，４３’・・本体当接部
４４，４４’・・弁体当接部 ５０・・ストッパ ５１・・基板
５３・・本体上部当接部 ５４・・弁体当接部 ５５・・本体下部当接部 30, valve element 31, valve rod 31a, lower bellows support part 31b, bush 31c, receiving part 32, valve part 32a, locking step part 32b, contact part 33, bellows 35 Valve part (Example 3) 35a Central hole 35b Flat surface part 40, 40 'Stopper 41, 41' Substrate 42, 42 'Central opening part 43, 43' Body contact Portions 44, 44 '... Valve contact portion 50 Stopper 51 Substrate 53 Upper body contact portion 54 Valve contact portion 55 Lower body contact portion

Claims (7)

駆動部と弁体部とからなり、該弁体部に配置されている弁体は冷媒圧により駆動部側に突出勝手に付勢されている電動弁であって、駆動部と弁体部とを分離したとき、弁体の突出を阻害するストッパを弁本体と弁体との間に配置させたことを特徴とする電動弁。   The valve body, which is composed of a drive unit and a valve unit, is a motor-operated valve that is urged toward the drive unit by the refrigerant pressure. A motor-operated valve characterized in that a stopper for preventing the valve body from projecting when the valve body is separated is arranged between the valve body and the valve body. ストッパは、上記弁本体と、上記弁体を構成する弁部との間に配置させたことを特徴とする請求項１記載の電動弁。   The motor-operated valve according to claim 1, wherein the stopper is disposed between the valve body and a valve part that constitutes the valve body. ストッパは、弾性素材からなる本体当接部と、弁体当接部と、を具備し、前記本体当接部は弁本体の内面に係止され、前記弁体当接部は弁部の外周部に係止可能とされることを特徴とする請求項２記載の電動弁。   The stopper includes a body contact portion made of an elastic material and a valve body contact portion, wherein the body contact portion is locked on an inner surface of the valve body, and the valve body contact portion is an outer periphery of the valve portion. The motor-operated valve according to claim 2, wherein the motor-operated valve can be locked to the portion. ストッパは、円環状の基板と、該基板と一体的に形成された舌片状の本体当接部と、弁体当接部と、からなることを特徴とする請求項３記載の電動弁。   The motor-operated valve according to claim 3, wherein the stopper comprises an annular substrate, a tongue-shaped body contact portion formed integrally with the substrate, and a valve body contact portion. ストッパは、円環状の基板と、該基板と一体的に形成された板状の上記本体当接部と、上記弁体当接部とからなることを特徴とする請求項３記載の電動弁。   The motor-operated valve according to claim 3, wherein the stopper comprises an annular substrate, the plate-shaped body contact portion formed integrally with the substrate, and the valve body contact portion. ストッパは、弾性素材からなる本体上部当接部と、円環状の基板と、本体下部当接部と、弁体当接部と、を具備し、前記本体上部当接部と本体下部当接部は弁本体の内面に係止され、前記基板は弁本体の内面に当接され、前記弁体当接部は弁部に係止可能に形成されることを特徴とする請求項２記載の電動弁。   The stopper includes a main body upper contact portion made of an elastic material, an annular substrate, a main body lower contact portion, and a valve body contact portion, wherein the main body upper contact portion and the main body lower contact portion are provided. 3. The electric motor according to claim 2, wherein the base plate is locked to an inner surface of the valve body, the substrate is in contact with the inner surface of the valve body, and the valve body contact portion is formed so as to be locked to the valve portion. 4. valve. ストッパは、円環状の基板と、該基板の上部に一体的に形成された舌片状の本体上部当接部と、該円環状の基板の下部に一体的に形成された舌片状の本体下部当接部及び弁体当接部とからなることを特徴とする請求項６記載の電動弁。   The stopper includes an annular substrate, a tongue-shaped body upper contact portion integrally formed on an upper portion of the substrate, and a tongue-shaped body integrally formed on a lower portion of the annular substrate. The motor-operated valve according to claim 6, comprising a lower contact portion and a valve body contact portion.
JP2003300267A 2003-02-03 2003-08-25 Motorized valve Expired - Fee Related JP4317405B2 (en)

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KR1020030099734A KR101046100B1 (en) 2003-02-03 2003-12-30 Electric valve
CNB2004100010917A CN100339617C (en) 2003-02-03 2004-02-03 Motorised valve

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101338835A (en) * 2007-07-03 2009-01-07 株式会社不二工机 Electric valve and cooling/warming system
JP2012202463A (en) * 2011-03-25 2012-10-22 Fuji Koki Corp Motor-operated valve
JP2017223372A (en) * 2017-09-19 2017-12-21 株式会社鷺宮製作所 Motor-driven valve
JP2019183891A (en) * 2018-04-04 2019-10-24 株式会社鷺宮製作所 Motor operated valve
EP3957931A4 (en) * 2019-05-15 2022-06-15 Daikin Industries, Ltd. Unit for refrigeration devices, heat source unit, utilization unit, and refrigeration device
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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100598327B1 (en) * 2005-03-30 2006-07-10 주식회사 모아텍 Electromotive valve
JP2007139016A (en) * 2005-11-16 2007-06-07 Saginomiya Seisakusho Inc Electric motor-driven type control valve and refrigerating cycle device
WO2012109993A1 (en) * 2011-02-17 2012-08-23 浙江三花股份有限公司 Electrical expansion valve
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CN102644785B (en) * 2011-02-17 2014-04-30 浙江三花股份有限公司 Electronic expansion valve
CN102901279B (en) * 2011-07-27 2015-07-22 浙江三花股份有限公司 Electronic expansion valve
JP5400122B2 (en) * 2011-10-27 2014-01-29 株式会社鷺宮製作所 Motorized valve
JP6475197B2 (en) * 2016-06-15 2019-02-27 株式会社鷺宮製作所 Valve device
CN113623901A (en) * 2020-05-09 2021-11-09 盾安环境技术有限公司 Throttling device and air conditioning system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541612A (en) * 1984-04-03 1985-09-17 Keystone International, Inc. Rotatable shaft assembly
US5146126A (en) * 1991-09-05 1992-09-08 Hr Textron Inc. Adjustable rotor assembly
JPH0590268U (en) * 1992-05-13 1993-12-10 ダイキン工業株式会社 Electric expansion valve
JPH1182796A (en) * 1997-09-16 1999-03-26 Fuji Koki Corp Electric motor operated valve
US6053472A (en) * 1998-10-16 2000-04-25 Eaton Corporation Rotary solenoid operated proportional flow control valve
JP2000193129A (en) * 1998-10-21 2000-07-14 Kitz Corp Valve with actuator
KR100280736B1 (en) * 1998-11-11 2002-05-09 윤종용 Electric control valve
JP2000346226A (en) * 1999-06-02 2000-12-15 Fuji Koki Corp Motor-operated valve
US6460567B1 (en) * 1999-11-24 2002-10-08 Hansen Technologies Corpporation Sealed motor driven valve
CN100387872C (en) * 2001-05-24 2008-05-14 株式会社不二工机 Electric valve

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101338835A (en) * 2007-07-03 2009-01-07 株式会社不二工机 Electric valve and cooling/warming system
JP2009014056A (en) * 2007-07-03 2009-01-22 Fuji Koki Corp Motor-operated valve and air conditioning system
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CN1519495A (en) 2004-08-11

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