JP2018119595A - Motor valve and refrigeration cycle system - Google Patents

Motor valve and refrigeration cycle system Download PDF

Info

Publication number
JP2018119595A
JP2018119595A JP2017010882A JP2017010882A JP2018119595A JP 2018119595 A JP2018119595 A JP 2018119595A JP 2017010882 A JP2017010882 A JP 2017010882A JP 2017010882 A JP2017010882 A JP 2017010882A JP 2018119595 A JP2018119595 A JP 2018119595A
Authority
JP
Japan
Prior art keywords
valve
annular surface
axis
support member
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2017010882A
Other languages
Japanese (ja)
Other versions
JP6753789B2 (en
Inventor
雄希 北見
Yuki Kitami
雄希 北見
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saginomiya Seisakusho Inc
Original Assignee
Saginomiya Seisakusho Inc
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 Saginomiya Seisakusho Inc filed Critical Saginomiya Seisakusho Inc
Priority to JP2017010882A priority Critical patent/JP6753789B2/en
Priority to CN201711474527.8A priority patent/CN108343750B/en
Publication of JP2018119595A publication Critical patent/JP2018119595A/en
Application granted granted Critical
Publication of JP6753789B2 publication Critical patent/JP6753789B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • 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
    • F16K1/02—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 with screw-spindle
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Valve Housings (AREA)

Abstract

PROBLEM TO BE SOLVED: To reliably weld a fixed metal fitting 23 of a support member 2 and a sealed case 3 to a valve housing 1 without welding failure, in a motor valve 100 where the support member 2 and the sealed case 3 are assembled to the valve housing 1.SOLUTION: On the whole circumference of an opening end part of a valve housing 1, a step part 11 is provided. The step part 11 comprises an inside first annular surface 11a and an outside second annular surface 11b. A fixed metal fitting 23 is arranged inside the second annular surface 11b, and the first annular surface 11a is contacted with a flange part 232. The whole circumference of a contact portion between the first annular surface 11a and the flange part 232 is welded. An opening end part of a lower end of a sealed case 3 is contacted with the second annular surface 11b. The whole circumference of a contact portion between the second annular surface 11b and the opening end part of the sealed case 3 is welded. With respect to the valve housing 1 (valve body), the sealed case 3 and a support member 2 are welded at different positions in an axis L direction.SELECTED DRAWING: Figure 3

Description

本発明は、冷凍サイクルシステムなどに使用する電動弁及び冷凍サイクルシステムに関する。   The present invention relates to an electric valve and a refrigeration cycle system used for a refrigeration cycle system and the like.

従来、この種の電動弁として、ステッピングモータのマグネットロータ及びロータ軸の回転によりねじ送り機構を介してロータ軸と弁部材を作動し、弁部材で弁ポートを開閉するものがある。また、ロータ軸を支持する支持部材を備えたものがある。このような電動弁は例えば特許第５３９５７７５号公報（特許文献１）に開示されている。   Conventionally, as this type of electric valve, there is a type in which a rotor shaft and a valve member are operated via a screw feed mechanism by rotation of a magnet rotor and a rotor shaft of a stepping motor, and a valve port is opened and closed by the valve member. Some have a support member for supporting the rotor shaft. Such a motor-operated valve is disclosed in, for example, Japanese Patent No. 5395775 (Patent Document 1).

また、この従来の電動弁では、流体の流路を密閉する必要があり、弁本体と共に密閉構造をなす円筒形状の密閉ケース（キャン）内に、モータ部のマグネットロータを収容している。そして、この弁本体と密閉ケースとは溶接等により密閉固着されている。また、ステッピングモータのロータ軸に雄ねじ部が形成され、雄ねじ部を支持部材の雌ねじ部に螺合させることにより、ロータ軸が支持部材に支持されている。そして、支持部材と密閉ケースは弁ハウジング（弁本体）の上部に組み付けられている。   Further, in this conventional electric valve, it is necessary to seal the fluid flow path, and the magnet rotor of the motor unit is accommodated in a cylindrical sealing case (can) that forms a sealing structure with the valve body. The valve body and the sealing case are hermetically fixed by welding or the like. Further, a male screw portion is formed on the rotor shaft of the stepping motor, and the rotor shaft is supported by the support member by screwing the male screw portion with the female screw portion of the support member. The support member and the sealing case are assembled to the upper portion of the valve housing (valve body).

特許第５３９５７７５号公報Japanese Patent No. 5395775

上述した特許文献１の技術では、支持部材と密閉ケースを弁ハウジングに組み付ける際に、まず、支持部材を弁ハウジングの開口端部に嵌合して固定金具と弁ハウジングの開口端部の周辺とを溶接により固着する。次に、密閉ケースを弁ハウジングの開口端部に対して溶接により固着する。   In the technique of Patent Document 1 described above, when the support member and the sealing case are assembled to the valve housing, first, the support member is fitted to the opening end of the valve housing, and the fixing bracket and the periphery of the opening end of the valve housing are Is fixed by welding. Next, the sealed case is fixed to the open end of the valve housing by welding.

このように、従来の技術では、弁ハウジングの開口端部の同じ端面に対して、支持部材と密閉ケースとを一般に溶接で固定しているので、以下のような問題がある。支持部材の固定金具は弁ハウジングの開口端部の端面に先に溶接されるので、密閉ケースを組み付ける際に、固定金具の溶接による溶融凝固部（ビード部）が弁ハウジングの開口端部の端面に形成されている。このため、密閉ケースと溶融凝固部とが干渉することがあり、密閉ケースが位置ずれしたり、溶接不良が生じることがある。   Thus, in the prior art, since the support member and the sealing case are generally fixed by welding to the same end surface of the opening end portion of the valve housing, there are the following problems. Since the fixing bracket of the support member is welded to the end face of the opening end of the valve housing first, when assembling the sealed case, the melted and solidified portion (bead part) by welding of the fixing bracket is the end face of the opening end of the valve housing. Is formed. For this reason, the sealed case and the melted and solidified portion may interfere with each other, and the sealed case may be displaced or poor welding may occur.

本発明は、弁本体に対して、ロータ軸を軸線上に支持する支持部材とマグネットロータを収容する密閉ケースとを組み付けてなる電動弁において、支持部材の固定金具と密閉ケースとを、弁本体に対して溶接不良がなく確実に溶接された電動弁を提供することを課題とする。   The present invention relates to a motor-operated valve in which a support member that supports a rotor shaft on an axis and a sealing case that houses a magnet rotor are assembled to a valve body. It is an object of the present invention to provide a motor-driven valve that is reliably welded without welding defects.

請求項１の電動弁は、モータ部のマグネットロータ及びロータ軸の回転により作動する弁部材を内蔵した円筒形状で金属製の弁本体に対して、前記ロータ軸を軸線上に支持する支持部材と、前記マグネットロータを収容する円筒形状で金属製の密閉ケースとを組み付けてなる電動弁であって、前記支持部材は、前記軸線回りの外周に該軸線と直交する方向に突出する突出面を成す固定金具を有し、前記弁本体は、前記支持部材を嵌合する開口端部の前記軸線回りに、前記軸線と直交する面内にそれぞれ位置する内側の第１の環状面を有し、前記軸線回りの全周に外側の第２の環状面を有するとともに、該第１の環状面と該第２の環状面とは前記軸線方向の位置が異なるように段差部を構成しており、前記弁本体の前記第１の環状面と前記支持部材の前記固定金具の当接部分が溶接されるとともに、前記弁本体の前記第２の環状面と前記密閉ケースの開口端部との当接部分が溶接されていることを特徴とする。   The motor-driven valve according to claim 1 is a cylindrical member having a built-in valve member that operates by rotation of a magnet rotor and a rotor shaft of a motor unit, and a support member that supports the rotor shaft on an axis with respect to a metal valve body. The motor-operated valve is formed by assembling a cylindrical metal casing that houses the magnet rotor, and the support member has a projecting surface projecting in a direction perpendicular to the axis on the outer periphery around the axis. The valve main body has an inner first annular surface located in a plane orthogonal to the axis around the axis of the opening end portion into which the support member is fitted, A step portion is formed so that the first annular surface and the second annular surface have different positions in the axial direction, with an outer second annular surface around the entire axis. The first annular surface of the valve body and the support Together with the abutment portion of the mounting brackets wood is welded, the contact portion between the open end of the second annular surface and the sealing case of the valve body, characterized in that it is welded.

請求項２の電動弁は、請求項１に記載の電動弁であって、前記固定金具は、板金のプレス加工によるダレ面部を有し、該ダレ面部の裏面側が前記第１の環状面に当接されて当該当接部分が溶接されていることを特徴とする。   The motor-driven valve according to claim 2 is the motor-operated valve according to claim 1, wherein the fixing bracket has a sag surface portion formed by pressing a sheet metal, and a back surface side of the sag surface portion contacts the first annular surface. The contact portion is welded to be in contact with each other.

請求項３の電動弁は、請求項２に記載の電動弁であって、前記固定金具は、前記軸線と直交する面に対して非対称な形状である
ことを特徴とする。 A motor-driven valve according to a third aspect is the motor-operated valve according to the second aspect, wherein the fixing bracket has an asymmetric shape with respect to a plane orthogonal to the axis.

請求項４の電動弁は、請求項３に記載の電動弁であって、前記支持部材は、前記弁本体の前記開口端部内に圧入される樹脂製の基部を有し、前記固定金具は、前記軸線を中心とする円筒状のリムと、前記リムの外周に軸線Ｌと直交する方向に突出する突出面を成すフランジ部とを有して構成され、前記固定金具は、前記基部内において、前記リムが前記弁本体の内側となるように配置しされて前記基部と共にインサート成形されていることを特徴とする。   The motor-operated valve according to claim 4 is the motor-operated valve according to claim 3, wherein the support member has a resin-made base portion that is press-fitted into the opening end portion of the valve body, A cylindrical rim centered on the axis, and a flange portion that forms a projecting surface projecting in a direction perpendicular to the axis L on the outer periphery of the rim, and the fixing bracket is located in the base, The rim is disposed so as to be inside the valve main body, and is insert-molded together with the base portion.

請求項５の冷凍サイクルシステムは、圧縮機と、凝縮器と、膨張弁と、蒸発器と、を含む冷凍サイクルシステムであって、請求項１乃至４のいずれか一項に記載の電動弁が、前記膨張弁として用いられていることを特徴とする。   The refrigeration cycle system according to claim 5 is a refrigeration cycle system including a compressor, a condenser, an expansion valve, and an evaporator, wherein the electric valve according to any one of claims 1 to 4 is provided. It is used as the expansion valve.

請求項１乃至４の電動弁によれば、弁本体に対して、支持部材と密閉ケースとを組み付ける際に、固定金具を溶接する第１の環状面の位置と密閉ケースを溶接するための第２の環状面との軸線方向の位置が異なるので、密閉ケースの溶接時に、溶融凝固部が密閉ケースと干渉することなく、この密閉ケースを確実に溶接することができる。   According to the electric valve of the first to fourth aspects, when the support member and the sealing case are assembled to the valve body, the position of the first annular surface where the fixing bracket is welded and the first case for welding the sealing case. Since the position in the axial direction differs from that of the two annular surfaces, the sealed case can be reliably welded without causing the melt-solidified portion to interfere with the sealed case when the sealed case is welded.

請求項２の電動弁によれば、固定金具は、プレス加工時のバリ面部において弁本体の第１の環状面に当接させて溶接されるので、溶接時に、ダレ面部と当接した時の様な隙間が無いため 、溶接時の溶け分れや強度不足を無くした、安定した溶接性が得られる。   According to the motor-operated valve of claim 2, the fixing bracket is welded by contacting the first annular surface of the valve main body at the burr surface portion at the time of press working. Since there are no such gaps, stable weldability can be obtained without melting and lack of strength during welding.

請求項３の電動弁によれば、固定金具が軸線と直交する面に対して非対称な形状であるので、支持部材のインサート成形時に固定金具が裏返しで入らない金型構造とすることで、バリ面が弁本体の第１環状面に必ず当接するため、安定した溶接性が得られる共に裏表の選別作業が不要となり、組立性が向上する。   According to the motor-operated valve of the third aspect, since the fixing bracket is asymmetrical with respect to the plane orthogonal to the axis, a mold structure that prevents the fixing bracket from being turned over at the time of insert molding of the support member is obtained. Since the surface always comes into contact with the first annular surface of the valve body, stable weldability can be obtained and the back and front sorting operation is not required, and the assemblability is improved.

請求項４の電動弁によれば、固定金具のリムが支持部材における基部内で弁本体の内側となるように配置されているので、支持部材の基部を弁本体の開口端部に圧入したときに基部に対して応力が生じても、リムの補強作用により基部の内径面の変形を防止でき、基部の内径面と摺動する弁ホルダの動きが悪化せず、弁作動性の悪化を防止できる。   According to the motor-operated valve of claim 4, since the rim of the fixing bracket is arranged so as to be inside the valve body in the base portion of the support member, when the base portion of the support member is press-fitted into the opening end portion of the valve body Even if stress is applied to the base, deformation of the inner diameter surface of the base can be prevented by the reinforcing action of the rim, the movement of the valve holder sliding with the inner diameter surface of the base is not deteriorated, and deterioration of valve operability is prevented. it can.

請求項５の冷凍サイクルシステムによれば、請求項１乃至４と同様な効果が得られる。   According to the refrigeration cycle system of claim 5, the same effects as in claims 1 to 4 can be obtained.

本発明の第１実施形態の電動弁の縦断面図である。It is a longitudinal cross-sectional view of the motor operated valve of 1st Embodiment of this invention. 第１実施形態の電動弁における固定金具の断面図及び一部拡大断面図である。It is sectional drawing and a partial expanded sectional view of the fixing metal fitting in the motor operated valve of 1st Embodiment. 第１実施形態の電動弁における弁ハウジング、支持部材及び密閉ケースの組み付け部分の断面図である。It is sectional drawing of the assembly | attachment part of the valve housing in the motor operated valve of 1st Embodiment, a supporting member, and a sealing case. 第２実施形態の電動弁における弁ハウジング、支持部材及び密閉ケースの組み付け部分の断面図である。It is sectional drawing of the assembly | attachment part of the valve housing in a motor operated valve of 2nd Embodiment, a supporting member, and a sealing case. 実施形態の冷凍サイクルシステムを示す図である。It is a figure showing the refrigerating cycle system of an embodiment.

次に、本発明の電動弁及び冷凍サイクルシステムの実施形態を図面を参照して説明する。図１は第１実施形態の電動弁の縦断面図、図２は第１実施形態の電動弁における固定金具の断面図及び一部拡大断面図、図３は第１実施形態の電動弁における弁ハウジング、支持部材及び密閉ケースの組み付け部分の断面図である。なお、以下の説明における「上下」の概念は図１の図面における上下に対応する。   Next, an embodiment of an electric valve and a refrigeration cycle system of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a motor-operated valve according to the first embodiment, FIG. 2 is a cross-sectional view and a partially enlarged cross-sectional view of a fixing bracket in the motor-operated valve according to the first embodiment, and FIG. It is sectional drawing of the assembly | attachment part of a housing, a supporting member, and a sealing case. Note that the concept of “upper and lower” in the following description corresponds to the upper and lower sides in the drawing of FIG.

この電動弁１００は、「弁本体」としての弁ハウジング１と、支持部材２と、密閉ケース３と、弁ホルダ４と、「弁部材」としてのニードル弁５と、「モータ部」としてのステッピングモータ６と、を備えている。   The motor-operated valve 100 includes a valve housing 1 as a “valve body”, a support member 2, a sealing case 3, a valve holder 4, a needle valve 5 as a “valve member”, and a stepping as a “motor unit”. A motor 6.

弁ハウジング１はステンレス等で略円筒形状に形成されており、その内側に弁室１Ｒを有している。弁ハウジング１の外周片側には弁室１Ｒに導通される第１継手管１０１が接続されるとともに、下端から下方に延びる筒状部に第２継手管１０２が接続されている。また、第２継手管１０２の弁室１Ｒ側には弁座リング１０３が嵌合されている。弁座リング１０３の内側は弁ポート１０３ａとなっており、第２継手管１０２は弁ポート１０３ａを介して弁室１Ｒに導通される。なお、第１継手管１０１、第２継手管１０２及び弁座リング１０３は、弁ハウジング１に対してろう付け等により固着されている。   The valve housing 1 is made of stainless steel or the like and has a substantially cylindrical shape, and has a valve chamber 1R inside thereof. A first joint pipe 101 connected to the valve chamber 1R is connected to one side of the outer periphery of the valve housing 1, and a second joint pipe 102 is connected to a cylindrical portion extending downward from the lower end. Further, a valve seat ring 103 is fitted on the valve chamber 1R side of the second joint pipe 102. The inside of the valve seat ring 103 is a valve port 103a, and the second joint pipe 102 is electrically connected to the valve chamber 1R via the valve port 103a. The first joint pipe 101, the second joint pipe 102, and the valve seat ring 103 are fixed to the valve housing 1 by brazing or the like.

支持部材２は中央のホルダ部２１とこのホルダ部２１の外周の厚手の基部２２と、後述の固定金具２３とを有しており、固定金具２３はインサート成形によりホルダ部２１及び基部２２と共に一体に設けられている。これにより、固定金具２３は、支持部材２の軸線Ｌ回りの外周に突出して設けられている。そして、後述のように支持部材２は固定金具２３を介して弁ハウジング１の上端部に溶接により固定されている。ホルダ部２１の中心には、軸線Ｌと同軸の雌ねじ部２１ａとそのねじ孔が形成されるとともに、雌ねじ部２１ａのねじ孔よりも径の大きな円筒形状のガイド孔２１ｂが形成されている。   The support member 2 includes a central holder portion 21, a thick base portion 22 on the outer periphery of the holder portion 21, and a fixing bracket 23 described later. The fixing bracket 23 is integrated with the holder portion 21 and the base portion 22 by insert molding. Is provided. As a result, the fixing bracket 23 is provided so as to protrude from the outer periphery of the support member 2 around the axis L. As will be described later, the support member 2 is fixed to the upper end portion of the valve housing 1 by welding via a fixing fitting 23. At the center of the holder portion 21, a female screw portion 21a coaxial with the axis L and a screw hole thereof are formed, and a cylindrical guide hole 21b having a diameter larger than that of the screw hole of the female screw portion 21a is formed.

密閉ケース３は、上端部が塞がれた略円筒形状に形成されており、後述のように、弁ハウジング１の上端に溶接によって気密に固定されている。密閉ケース３内の上部には、ガイド３１が設けられるとともに、ガイド３１の外周には回転ストッパ機構３２が設けられている。   The sealed case 3 is formed in a substantially cylindrical shape with its upper end closed, and is airtightly fixed to the upper end of the valve housing 1 by welding as will be described later. A guide 31 is provided in the upper part of the sealed case 3, and a rotation stopper mechanism 32 is provided on the outer periphery of the guide 31.

弁ホルダ４は円筒状の部材であり、支持部材２のガイド孔２１ｂ内に嵌合されて軸線Ｌ方向に摺動可能に配設されている。そして、弁ホルダ４の下端部にニードル弁５が固着されている。弁ホルダ４内には、バネ受け４１が軸線Ｌ方向に移動可能に設けられ、バネ受け４１とニードル弁５との間に圧縮コイルバネ４２が所定の荷重を与えられた状態で取り付けられている。   The valve holder 4 is a cylindrical member, and is fitted in the guide hole 21b of the support member 2 so as to be slidable in the direction of the axis L. A needle valve 5 is fixed to the lower end of the valve holder 4. A spring receiver 41 is provided in the valve holder 4 so as to be movable in the direction of the axis L, and a compression coil spring 42 is attached between the spring receiver 41 and the needle valve 5 with a predetermined load applied thereto.

ステッピングモータ６は、ロータ軸６１と、密閉ケース３の内部に回転可能に配設されたマグネットロータ６２と、密閉ケース３の外周においてマグネットロータ６２に対して対向配置されたステータコイル６３と、その他、図示しないヨークや外装部材等により構成されている。ロータ軸６１はマグネットロータ６２の中心に取り付けられ、このロータ軸６１は支持部材２側に延設されている。ロータ軸６１の支持部材２側の外周には雄ねじ部６１ａが形成されており、この雄ねじ部６１ａが支持部材２の雌ねじ部２１ａに螺合されている。そして、支持部材２のガイド孔２１ｂ内で、弁ホルダ４の上端部がロータ軸６１の下端部に係合され、弁ホルダ４及びニードル弁５はロータ軸６１によって回転可能に吊り下げた状態で支持されている。また、ロータ軸６１は上端部が密閉ケース３内のガイド３１内に回動自在に嵌め込まれている。   The stepping motor 6 includes a rotor shaft 61, a magnet rotor 62 rotatably disposed inside the sealed case 3, a stator coil 63 disposed opposite to the magnet rotor 62 on the outer periphery of the sealed case 3, and the like. Further, it is configured by a yoke, an exterior member or the like (not shown). The rotor shaft 61 is attached to the center of the magnet rotor 62, and the rotor shaft 61 extends to the support member 2 side. A male screw portion 61 a is formed on the outer periphery of the rotor shaft 61 on the support member 2 side, and this male screw portion 61 a is screwed into the female screw portion 21 a of the support member 2. In the guide hole 21 b of the support member 2, the upper end of the valve holder 4 is engaged with the lower end of the rotor shaft 61, and the valve holder 4 and the needle valve 5 are rotatably suspended by the rotor shaft 61. It is supported. The upper end of the rotor shaft 61 is rotatably fitted in the guide 31 in the sealed case 3.

以上の構成により、ステッピングモータ６の駆動により、マグネットロータ６２及びロータ軸６１が回転し、ロータ軸６１の雄ねじ部６１ａと支持部材２の雌ねじ部２１ａとのねじ送り機構により、ロータ軸６１が軸線Ｌ方向に移動する。そして、弁部材５が軸線Ｌ方向に移動して弁座リング１０３に対して近接又は離間する。これにより、弁ポート１０３ａが開閉され、第１継手管１０１から第２継手管１０２へ、あるいは第２継手管１０２から第１継手管１０１へ流れる冷媒の流量が制御される。なお、マグネットロータ６２の上下の回転位置は回転ストッパ機構３２により規制される。   With the above configuration, the magnet rotor 62 and the rotor shaft 61 are rotated by the driving of the stepping motor 6, and the rotor shaft 61 is rotated by the screw feed mechanism of the male screw portion 61 a of the rotor shaft 61 and the female screw portion 21 a of the support member 2. Move in the L direction. Then, the valve member 5 moves in the direction of the axis L and approaches or separates from the valve seat ring 103. Thereby, the valve port 103a is opened and closed, and the flow rate of the refrigerant flowing from the first joint pipe 101 to the second joint pipe 102 or from the second joint pipe 102 to the first joint pipe 101 is controlled. The upper and lower rotational positions of the magnet rotor 62 are regulated by the rotation stopper mechanism 32.

このように電動弁１００は、ステータモータ６（モータ部）のマグネットロータ６２及びロータ軸６１の回転により作動するニードル弁５（弁部材）を内蔵した円筒形状の金属製の弁ハウジング１（弁本体）に対して、ロータ軸６１を軸線Ｌ上に支持する支持部材２と、マグネットロータ６２を収容する円筒形状で金属製の密閉ケース３とを組み付けてなる電動弁である。   Thus, the motor-operated valve 100 includes a cylindrical metal valve housing 1 (valve body) that incorporates a needle valve 5 (valve member) that operates by rotation of the magnet rotor 62 and the rotor shaft 61 of the stator motor 6 (motor unit). ) Is a motor-operated valve formed by assembling the support member 2 for supporting the rotor shaft 61 on the axis L and the cylindrical metal sealing case 3 for housing the magnet rotor 62.

図２に示すように、固定金具２３はステンレス製の板金のプレス加工により形成されており、軸線Ｌを中心とする円筒状のリム２３１と、リム２３１の外周に軸線Ｌと直交する方向に突出する突出面を成すフランジ部２３２とを一体に有している。図２の一点鎖線の円で囲った一部拡大図に示すように、フランジ部２３２の外周でリム２３１と反対側の端部には、プレス加工によるダレ面部Ａが形成されている。また、この固定金具２３の溶接前の状態では、ダレ面部Ａと反対側の端部には、プレス加工によるバリ面部Ｂが形成されている。プレス加工によるバリ面部Ｂは、プレス加工後にバリ処理を施している為、このバリ面部Ｂにバリは無い。なお、固定金具２３は、バリ面部Ｂの部分で溶接される。   As shown in FIG. 2, the fixture 23 is formed by pressing a stainless steel sheet metal, and protrudes in a direction perpendicular to the axis L on the outer periphery of the rim 231 with a cylindrical rim 231 centered on the axis L. And a flange portion 232 forming a protruding surface. As shown in a partially enlarged view surrounded by a one-dot chain line circle in FIG. 2, a sag surface portion A is formed by pressing at the end of the flange portion 232 opposite to the rim 231. In addition, in the state before the fixing bracket 23 is welded, a burr surface portion B is formed at the end opposite to the sag surface portion A by press working. The burr surface portion B formed by the press processing is subjected to burr processing after the press processing, and thus the burr surface portion B has no burr. The fixing bracket 23 is welded at the burr surface portion B.

図１及び図３に示すように、支持部材２はその基部２２を弁ハウジング１の上端の開口端部に圧入して嵌合されている。固定金具２３は、支持部材２の基部２２内において、リム２３１が弁ハウジング１の弁室１Ｒ側となるように配置しされてこの基部２２と共にインサート成形されている。また、弁ハウジング１は、支持部材２の基部２２を嵌合する開口端部に段差部１１を有している。この段差部１１は、軸線Ｌ回りの全周に軸線Ｌと直交する面内にそれぞれ位置する内側の第１の環状面１１ａと外側の第２の環状面１１ｂとを有している。この第１の環状面１１ａと第２の環状面１１ｂとは軸線Ｌ方向の位置が異なっている。この第１実施形態では、第２の環状面１１ｂが第１の環状面１１ａよりも軸線Ｌ方向の低い位置に形成されている。なお、図１及び図３では弁ハウジング１及び密閉ケース３の縦断面が図示されているが、この弁ハウジング１は第１継手管１０１を嵌合する孔を除いては、軸線Ｌ回りの回転対称な形状である。また、密閉ケース３は弁ハウジング１側の円筒部が軸線Ｌ回りの回転対称な形状である。   As shown in FIG. 1 and FIG. 3, the support member 2 is fitted by press-fitting its base portion 22 into the open end of the upper end of the valve housing 1. The fixing bracket 23 is disposed in the base portion 22 of the support member 2 such that the rim 231 is on the valve chamber 1R side of the valve housing 1 and is insert-molded together with the base portion 22. Further, the valve housing 1 has a step portion 11 at an opening end portion into which the base portion 22 of the support member 2 is fitted. The step portion 11 has an inner first annular surface 11a and an outer second annular surface 11b located in a plane orthogonal to the axis L on the entire circumference around the axis L. The position of the first annular surface 11a and the second annular surface 11b in the direction of the axis L is different. In the first embodiment, the second annular surface 11b is formed at a lower position in the axis L direction than the first annular surface 11a. 1 and 3 show longitudinal sections of the valve housing 1 and the sealing case 3, the valve housing 1 rotates around the axis L except for a hole for fitting the first joint pipe 101. It is a symmetric shape. The sealed case 3 has a cylindrical shape on the valve housing 1 side that is rotationally symmetric about the axis L.

支持部材２の固定金具２３は第２の環状面１１ｂの内側に配置され、第１の環状面１１ａに固定金具２３のフランジ部２３２が当接されている。そして、この第１の環状面１１ａとフランジ部２３２との当接部分の全周が溶接され、その全周において溶融凝固部Ｐが形成されている。これにより、支持部材２が弁ハウジング１に固着されている。また、密閉ケース３の下端の開口端部は第２の環状面１１ｂに当接されている。そして、この第２の環状面１１ｂと密閉ケース３の開口端部との当接部分の全周が溶接され、その全周において溶融凝固部Ｑが形成されている。これにより、密閉ケース３が弁ハウジング１に固着されている。   The fixture 23 of the support member 2 is disposed inside the second annular surface 11b, and the flange portion 232 of the fixture 23 is in contact with the first annular surface 11a. Then, the entire circumference of the contact portion between the first annular surface 11a and the flange portion 232 is welded, and the melted and solidified portion P is formed on the entire circumference. Thereby, the support member 2 is fixed to the valve housing 1. Further, the opening end at the lower end of the sealed case 3 is in contact with the second annular surface 11b. Then, the entire circumference of the contact portion between the second annular surface 11b and the open end of the sealed case 3 is welded, and the melted and solidified portion Q is formed on the entire circumference. Thereby, the sealed case 3 is fixed to the valve housing 1.

このように、弁ハウジング１（弁本体）に対して、支持部材２と密閉ケース３とを組み付ける際に、固定金具２３（フランジ部２３２）を溶接する位置が第２の環状面１１ｂよりも軸線Ｌ方向の高い位置となる。したがって、密閉ケース３の溶接時に、溶融凝固部Ｐが密閉ケース３と干渉することなく、この密閉ケース３を確実に溶接することができる。   Thus, when the support member 2 and the sealing case 3 are assembled to the valve housing 1 (valve body), the position where the fixing bracket 23 (flange portion 232) is welded is more axial than the second annular surface 11b. It becomes a high position in the L direction. Therefore, when the sealed case 3 is welded, the melted and solidified portion P can be reliably welded without interfering with the sealed case 3.

また、固定金具２３はフランジ部２３２の前記バリ面部Ｂを弁ハウジング１の第１の環状面１１ａに当接させて溶接されている。仮にダレ面を当接させて溶接をしようとすると、隙間ができて溶接性が安定しないため、溶接不良が生じ易い。しかし、実施形態ではフランジ部２３２のバリ面部Ｂが第１の環状面１１aに当接し、ダレ面部Aと当接した時の様な隙間が無く、被溶接形状が安定する。したがって、当接した線上を狙って溶接すれば良いため、溶接時の溶け分れや強度不足を無くした、安定した溶接性が得られる。   Further, the fixing bracket 23 is welded by bringing the burr surface portion B of the flange portion 232 into contact with the first annular surface 11 a of the valve housing 1. If welding is attempted with the sag surface abutting, a gap is formed and the weldability is not stable, so that poor welding is likely to occur. However, in the embodiment, the burr surface portion B of the flange portion 232 is in contact with the first annular surface 11a, and there is no gap as in contact with the sag surface portion A, and the welded shape is stabilized. Therefore, since welding should be aimed at the contacted line, stable weldability can be obtained without melting or lack of strength during welding.

また、固定金具２３は、片側のみにリム２３１を有している。すなわち、固定金具は板金のプレス加工によるダレ面部Ａを有し、軸線Ｌと直交する面に対して非対称な形状である。したがって、支持部材２のインサート成形時に固定金具２３が裏返しで入らない金型構造とすることで、バリ面が弁本体の第１環状面に必ず当接するため、安定した溶接性が得られる共に裏表の選別作業が不要となり、組立性が向上する。   Further, the fixing bracket 23 has a rim 231 only on one side. That is, the fixing bracket has a sag surface portion A obtained by pressing a sheet metal, and has an asymmetric shape with respect to a plane orthogonal to the axis L. Therefore, by adopting a mold structure in which the fixing metal fitting 23 is not turned upside down when the support member 2 is insert-molded, the burr surface always comes into contact with the first annular surface of the valve body, so that stable weldability can be obtained. This eliminates the need for sorting work and improves assembly.

また、固定金具２３のリム２３１が支持部材２における基部２２内で弁ハウジング１の弁室１Ｒ側に位置しているので、基部２２を弁ハウジング１の開口端部に圧入しても、この圧入により、弁ハウジング１の開口端部から軸線Ｌの半径方向（内向き）に応力が生じても、リム２３１の補強作用により基部２２の内径面の変形を防止できる。したがって、基部２２の内径面と摺動する弁ホルダ４の動きが悪化せず、弁作動性の悪化を防止できる。   Further, since the rim 231 of the fixing bracket 23 is located on the valve chamber 1R side of the valve housing 1 in the base portion 22 of the support member 2, even if the base portion 22 is press-fitted into the opening end portion of the valve housing 1, this press-fitting is performed. Thus, even if stress is generated in the radial direction (inward) of the axis L from the opening end portion of the valve housing 1, deformation of the inner diameter surface of the base portion 22 can be prevented by the reinforcing action of the rim 231. Therefore, the movement of the valve holder 4 that slides with the inner diameter surface of the base portion 22 does not deteriorate, and deterioration of valve operability can be prevented.

図４は第２実施形態の電動弁における弁ハウジング、支持部材及び密閉ケースの組み付け部分の断面図である。この第２実施形態と第１実施形態との違いは、弁ハウジングの開口端部、固定金具の外径、及び密閉ケースの高さである。その他の構造は図１と同様であり、第１実施形態と同様な要素及び対応する要素には図１乃至図３と同符号を付記して重複する説明及び全体構造の図示は省略する。   FIG. 4 is a cross-sectional view of a part where the valve housing, the support member, and the sealing case are assembled in the electric valve according to the second embodiment. The differences between the second embodiment and the first embodiment are the opening end of the valve housing, the outer diameter of the fixture, and the height of the sealed case. Other structures are the same as those in FIG. 1, and the same elements as those in the first embodiment and the corresponding elements are denoted by the same reference numerals as those in FIGS.

この第２実施形態における弁ハウジング１′は、基部２２を嵌合する開口端部に段差部１２を有している。この段差部１２は、軸線Ｌ回りの全周に軸線Ｌと直交する面内にそれぞれ位置する内側の第１の環状面１２ａと外側の第２の環状面１２ｂとを有している。この第１の環状面１２ａと第２の環状面１２ｂとは軸線Ｌ方向の位置が異なっている。この第２実施形態では、第２の環状面１２ｂが第１の環状面１２ａよりも軸線Ｌ方向の高い位置に形成されている。この第２実施形態における弁ハウジング１′及び密閉ケース３′、第１実施形態と同様のその要部は軸線Ｌ回りの回転対称な形状である。   The valve housing 1 ′ in the second embodiment has a stepped portion 12 at the opening end portion into which the base portion 22 is fitted. The step portion 12 has an inner first annular surface 12a and an outer second annular surface 12b, which are respectively located in a plane orthogonal to the axis L, on the entire circumference around the axis L. The position of the first annular surface 12a and the second annular surface 12b in the direction of the axis L is different. In the second embodiment, the second annular surface 12b is formed at a higher position in the axis L direction than the first annular surface 12a. The valve housing 1 ′ and the sealing case 3 ′ in the second embodiment, and the main parts similar to those in the first embodiment have a rotationally symmetric shape around the axis L.

支持部材２の固定金具２３′は第２の環状面１２ｂの内側に配置され、第１の環状面１２ａに固定金具２３′のフランジ部２３２′が当接されている。そして、この第１の環状面１２ａとフランジ部２３２′との当接部分の全周が溶接され、その全周において溶融凝固部Ｐ′が形成されている。これにより、支持部材２が弁ハウジング１′に固着されている。また、密閉ケース３′の下端の開口端部は第２の環状面１２ｂに当接されている。そして、この第２の環状面１２ｂと密閉ケース３′の開口端部との当接部分の全周が溶接され、その全周において溶融凝固部Ｑ′が形成されている。これにより、密閉ケース３′が弁ハウジング１′に固着されている。   The fixture 23 'of the support member 2 is disposed inside the second annular surface 12b, and the flange portion 232' of the fixture 23 'is in contact with the first annular surface 12a. Then, the entire circumference of the contact portion between the first annular surface 12a and the flange portion 232 'is welded, and a molten and solidified portion P' is formed on the entire circumference. Thus, the support member 2 is fixed to the valve housing 1 ′. Further, the opening end of the lower end of the sealed case 3 'is in contact with the second annular surface 12b. The entire circumference of the contact portion between the second annular surface 12b and the open end of the sealed case 3 'is welded, and a melted and solidified portion Q' is formed on the entire circumference. Thereby, the sealing case 3 'is fixed to the valve housing 1'.

このように、第２実施形態でも、弁ハウジング１（弁本体）に対して、支持部材２と密閉ケース３とを組み付ける際に、固定金具２３′（フランジ部２３２′）を溶接する位置が第２の環状面１２ｂよりも軸線Ｌ方向の低い位置となる。したがって、密閉ケース３′の溶接時に、溶融凝固部Ｐ′が密閉ケース３′と干渉することなく、この密閉ケース３′を確実に溶接することができる。   As described above, also in the second embodiment, when the support member 2 and the sealing case 3 are assembled to the valve housing 1 (valve body), the position where the fixing bracket 23 ′ (flange portion 232 ′) is welded is the first position. The position is lower in the axis L direction than the second annular surface 12b. Therefore, when the sealed case 3 'is welded, the sealed case 3' can be reliably welded without the melted and solidified portion P 'interfering with the sealed case 3'.

図５は実施形態の冷凍サイクルシステムを示す図である。図において、符号１００は膨張弁を構成する本発明の実施形態の電動弁、２００は室外ユニットに搭載された室外熱交換器、３００は室内ユニットに搭載された室内熱交換器、４００は四方弁を構成する流路切換弁、５００は圧縮機である。電動弁１００、室外熱交換器２００、室内熱交換器３００、流路切換弁４００、及び圧縮機５００は、それぞれ導管によって図示のように接続され、ヒートポンプ式の冷凍サイクルを構成している。なお、アキュムレータ、圧力センサ、温度センサ等は図示を省略してある。   FIG. 5 is a diagram illustrating the refrigeration cycle system of the embodiment. In the figure, reference numeral 100 denotes an electric valve according to an embodiment of the present invention constituting an expansion valve, 200 denotes an outdoor heat exchanger mounted on the outdoor unit, 300 denotes an indoor heat exchanger mounted on the indoor unit, and 400 denotes a four-way valve. Reference numeral 500 denotes a flow path switching valve. The motor-operated valve 100, the outdoor heat exchanger 200, the indoor heat exchanger 300, the flow path switching valve 400, and the compressor 500 are connected by conduits as shown in the figure, and constitute a heat pump refrigeration cycle. The accumulator, pressure sensor, temperature sensor, etc. are not shown.

冷凍サイクルの流路は、流路切換弁４００により冷房運転時の流路と暖房運転時の流路の２通りに切換えられる。冷房運転時には、図に実線の矢印で示したように、圧縮機５００で圧縮された冷媒は流路切換弁４００から室外熱交換器２００に流入され、この室外熱交換器２００は凝縮器として機能し、室外熱交換器２００から流出された液冷媒は電動弁１００を介して室内熱交換器３００に流入され、この室内熱交換器３００は蒸発器として機能する。   The flow path of the refrigeration cycle is switched by the flow path switching valve 400 into a flow path during cooling operation and a flow path during heating operation. During the cooling operation, as indicated by solid arrows in the figure, the refrigerant compressed by the compressor 500 flows into the outdoor heat exchanger 200 from the flow path switching valve 400, and the outdoor heat exchanger 200 functions as a condenser. The liquid refrigerant flowing out of the outdoor heat exchanger 200 flows into the indoor heat exchanger 300 via the motor-operated valve 100, and the indoor heat exchanger 300 functions as an evaporator.

一方、暖房運転時には、図に破線の矢印で示したように、圧縮機５００で圧縮された冷媒は流路切換弁４００から室内熱交換器３００、電動弁１００、室外熱交換器２００、流路切換弁４００、そして、圧縮機５００の順に循環され、室内熱交換器３００が凝縮器として機能し、室外熱交換器２００が蒸発器として機能する。電動弁１００は、冷房運転時に室外熱交換器２００から流入する液冷媒、または暖房運転時に室内熱交換器３００から流入する液冷媒を、それぞれ減圧膨張し、さらにその冷媒の流量を制御する。   On the other hand, during heating operation, the refrigerant compressed by the compressor 500 is transferred from the flow path switching valve 400 to the indoor heat exchanger 300, the electric valve 100, the outdoor heat exchanger 200, the flow path, as indicated by the broken arrows in the figure. The switching valve 400 and the compressor 500 are circulated in this order, the indoor heat exchanger 300 functions as a condenser, and the outdoor heat exchanger 200 functions as an evaporator. The electric valve 100 decompresses and expands the liquid refrigerant flowing from the outdoor heat exchanger 200 during the cooling operation or the liquid refrigerant flowing from the indoor heat exchanger 300 during the heating operation, and further controls the flow rate of the refrigerant.

本発明の実施形態の説明において、固定金具と本体の前記環状面との溶接は、全周溶接としていたが、全周溶接とは限らず、部分溶接でも良い。   In the description of the embodiment of the present invention, the welding of the fixing bracket and the annular surface of the main body is the entire circumference welding. However, the welding is not limited to the entire circumference welding and may be partial welding.

以上、本発明の実施の形態について図面を参照して詳述してきたが、具体的な構成はこれらの実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計の変更等があっても本発明に含まれる。   As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to these embodiments, and the design can be changed without departing from the scope of the present invention. Is included in the present invention.

１ 弁ハウジング（弁本体）
１１ 段差部
１１ａ 第１の環状面
１１ｂ 第２の環状面
１０１ 第１継手管
１０２ 第２継手管
１０３ 弁座リング
１０３ａ 弁ポート
２ 支持部材
２１ ホルダ部
２１ａ 雌ねじ部
２２ 基部
２３ 固定金具
２３１ リム
２３２ フランジ部
Ａ ダレ面部
Ｂ バリ面部
３ 密閉ケース
４ 弁ホルダ
５ ニードル弁（弁部材）
６ ステッピングモータ（モータ部）
６１ ロータ軸
６１ａ 雄ねじ部
６２ マグネットロータ
６３ ステータコイル
Ｐ 溶融凝固部
Ｑ 溶融凝固部
１′ 弁ハウジング（弁本体）
１２ 段差部
１２ａ 第１の環状面
１２ｂ 第２の環状面
２３′ 固定金具
２３２′ フランジ部
３′ 密閉ケース
Ｐ′ 溶融凝固部
Ｑ′ 溶融凝固部
Ｌ 軸線
１００ 電動弁（膨張弁）
２００ 室外熱交換器
３００ 室内熱交換器
４００ 流路切換弁
５００ 圧縮機 1 Valve housing (valve body)
11 Stepped portion 11a First annular surface 11b Second annular surface 101 First joint pipe 102 Second joint pipe 103 Valve seat ring 103a Valve port 2 Support member 21 Holder part 21a Female thread part 22 Base part 23 Fixing bracket 231 Rim 232 Flange Part A Sag surface part B Burr surface part 3 Sealed case 4 Valve holder 5 Needle valve (valve member)
6 Stepping motor (motor part)
61 Rotor shaft 61a Male thread part 62 Magnet rotor 63 Stator coil P Melting and solidification part Q Melting and solidification part 1 'Valve housing (valve body)
12 Stepped portion 12a First annular surface 12b Second annular surface 23 'Fixing bracket 232' Flange portion 3 'Sealing case P' Melting and solidification portion Q 'Melting and solidification portion L Axis 100 Electric valve (expansion valve)
200 Outdoor heat exchanger 300 Indoor heat exchanger 400 Flow path switching valve 500 Compressor

Claims (5)

モータ部のマグネットロータ及びロータ軸の回転により作動する弁部材を内蔵した円筒形状で金属製の弁本体に対して、前記ロータ軸を軸線上に支持する支持部材と、前記マグネットロータを収容する円筒形状で金属製の密閉ケースとを組み付けてなる電動弁であって、
前記支持部材は、前記軸線回りの外周に該軸線と直交する方向に突出する突出面を成す固定金具を有し、
前記弁本体は、前記支持部材を嵌合する開口端部の前記軸線回りに、前記軸線と直交する面内にそれぞれ位置する内側の第１の環状面を有し、前記軸線回りの全周に外側の第２の環状面を有するとともに、該第１の環状面と該第２の環状面とは前記軸線方向の位置が異なるように段差部を構成しており、
前記弁本体の前記第１の環状面と前記支持部材の前記固定金具の当接部分が溶接されるとともに、前記弁本体の前記第２の環状面と前記密閉ケースの開口端部との当接部分が溶接されている
ことを特徴とする電動弁。 A support member for supporting the rotor shaft on an axis with respect to a cylindrical metal valve body having a built-in valve member that operates by rotation of the magnet rotor and the rotor shaft of the motor portion, and a cylinder that houses the magnet rotor A motor-operated valve that is assembled with a metal sealed case in shape,
The support member has a fixture that forms a protruding surface protruding in a direction perpendicular to the axis on the outer periphery around the axis,
The valve main body has an inner first annular surface located in a plane orthogonal to the axis around the axis of the opening end to which the support member is fitted, and is disposed on the entire circumference around the axis. The first annular surface and the second annular surface have a stepped portion so that the position in the axial direction is different, while having an outer second annular surface.
The first annular surface of the valve body and the contact portion of the fixing member of the support member are welded, and the second annular surface of the valve body and the opening end of the sealing case are in contact with each other. A motor-operated valve characterized in that a portion is welded. 前記固定金具は、板金のプレス加工によるダレ面部を有し、該ダレ面部の裏面側が前記第１の環状面に当接されて当該当接部分が溶接されている
ことを特徴とする請求項１に記載の電動弁。 The fixed metal fitting has a sag surface portion formed by pressing a sheet metal, and a back surface side of the sag surface portion is brought into contact with the first annular surface, and the contact portion is welded. The motor-operated valve as described in. 前記固定金具は、前記軸線と直交する面に対して非対称な形状である
ことを特徴とする請求項２に記載の電動弁。 The motor-operated valve according to claim 2, wherein the fixing metal has an asymmetric shape with respect to a surface orthogonal to the axis. 前記支持部材は、前記弁本体の前記開口端部内に圧入される樹脂製の基部を有し、前記固定金具は、前記軸線を中心とする円筒状のリムと、前記リムの外周に軸線Ｌと直交する方向に突出する突出面を成すフランジ部とを有して構成され、
前記固定金具は、前記基部内において、前記リムが前記弁本体の内側となるように配置しされて前記基部と共にインサート成形されている
ことを特徴とする請求項３に記載の電動弁。 The support member has a resin base that is press-fitted into the opening end of the valve body, and the fixing bracket includes a cylindrical rim centered on the axis, and an axis L on the outer periphery of the rim. And a flange portion that forms a projecting surface projecting in an orthogonal direction,
4. The electric valve according to claim 3, wherein the fixing metal fitting is disposed in the base portion so that the rim is inside the valve body and is insert-molded together with the base portion. 圧縮機と、凝縮器と、膨張弁と、蒸発器と、を含む冷凍サイクルシステムであって、請求項１乃至４のいずれか一項に記載の電動弁が、前記膨張弁として用いられている
ことを特徴とする冷凍サイクルシステム。 A refrigeration cycle system including a compressor, a condenser, an expansion valve, and an evaporator, wherein the motor-operated valve according to any one of claims 1 to 4 is used as the expansion valve. A refrigeration cycle system characterized by that.
JP2017010882A 2017-01-25 2017-01-25 Solenoid valve and refrigeration cycle system Active JP6753789B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017010882A JP6753789B2 (en) 2017-01-25 2017-01-25 Solenoid valve and refrigeration cycle system
CN201711474527.8A CN108343750B (en) 2017-01-25 2017-12-29 Electric valve and refrigeration cycle system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017010882A JP6753789B2 (en) 2017-01-25 2017-01-25 Solenoid valve and refrigeration cycle system

Publications (2)

Publication Number Publication Date
JP2018119595A true JP2018119595A (en) 2018-08-02
JP6753789B2 JP6753789B2 (en) 2020-09-09

Family

ID=62963424

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017010882A Active JP6753789B2 (en) 2017-01-25 2017-01-25 Solenoid valve and refrigeration cycle system

Country Status (2)

Country Link
JP (1) JP6753789B2 (en)
CN (1) CN108343750B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021038802A (en) * 2019-09-03 2021-03-11 株式会社鷺宮製作所 Electric valve and refrigeration cycle system
JP2021188645A (en) * 2020-05-27 2021-12-13 株式会社不二工機 Electric valve
JP2022069562A (en) * 2018-08-17 2022-05-11 浙江盾安人工環境股▲ふん▼有限公司 Electronic expansion valve
CN114688268A (en) * 2019-03-05 2022-07-01 株式会社鹭宫制作所 Electric valve and refrigeration cycle system

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH097502A (en) * 1995-06-22 1997-01-10 Toshiba Corp Manufacture of part body
JP2003329157A (en) * 2002-05-15 2003-11-19 Saginomiya Seisakusho Inc Motor-driven valve
JP2005325888A (en) * 2004-05-13 2005-11-24 Fuji Koki Corp Motor operated valve
JP2007211814A (en) * 2006-02-07 2007-08-23 Saginomiya Seisakusho Inc Motor-operated valve and solenoid valve
JP2008232290A (en) * 2007-03-20 2008-10-02 Saginomiya Seisakusho Inc Needle valve, and refrigerating cycle device having the same
JP2013164125A (en) * 2012-02-10 2013-08-22 Saginomiya Seisakusho Inc Expansion valve
JP2013539850A (en) * 2010-10-15 2013-10-28 浙江三花股▲ふん▼有限公司 Motorized valve
CN103836211A (en) * 2014-03-25 2014-06-04 浙江三花股份有限公司 Valve seat assembly of electronic expansion valve and manufacturing method of valve seat assembly
JP2016023710A (en) * 2014-07-18 2016-02-08 株式会社鷺宮製作所 Motor-operated valve
JP2016211726A (en) * 2015-04-30 2016-12-15 株式会社鷺宮製作所 Electric valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4612377B2 (en) * 2004-09-17 2011-01-12 株式会社不二工機 Motorized valve
JP4541366B2 (en) * 2004-12-15 2010-09-08 株式会社鷺宮製作所 Electric control valve
CN102454818A (en) * 2010-10-15 2012-05-16 浙江三花股份有限公司 Electric valve
CN102734526B (en) * 2011-04-02 2013-12-25 浙江三花股份有限公司 Refrigeration system and electric valve
WO2015143845A1 (en) * 2014-03-25 2015-10-01 浙江三花股份有限公司 Valve base assembly for electronic expansion valve and manufacturing method thereof

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH097502A (en) * 1995-06-22 1997-01-10 Toshiba Corp Manufacture of part body
JP2003329157A (en) * 2002-05-15 2003-11-19 Saginomiya Seisakusho Inc Motor-driven valve
JP2005325888A (en) * 2004-05-13 2005-11-24 Fuji Koki Corp Motor operated valve
JP2007211814A (en) * 2006-02-07 2007-08-23 Saginomiya Seisakusho Inc Motor-operated valve and solenoid valve
JP2008232290A (en) * 2007-03-20 2008-10-02 Saginomiya Seisakusho Inc Needle valve, and refrigerating cycle device having the same
JP2013539850A (en) * 2010-10-15 2013-10-28 浙江三花股▲ふん▼有限公司 Motorized valve
JP2013164125A (en) * 2012-02-10 2013-08-22 Saginomiya Seisakusho Inc Expansion valve
CN103836211A (en) * 2014-03-25 2014-06-04 浙江三花股份有限公司 Valve seat assembly of electronic expansion valve and manufacturing method of valve seat assembly
JP2016023710A (en) * 2014-07-18 2016-02-08 株式会社鷺宮製作所 Motor-operated valve
JP2016211726A (en) * 2015-04-30 2016-12-15 株式会社鷺宮製作所 Electric valve

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022069562A (en) * 2018-08-17 2022-05-11 浙江盾安人工環境股▲ふん▼有限公司 Electronic expansion valve
JP2022079627A (en) * 2018-08-17 2022-05-26 浙江盾安人工環境股▲ふん▼有限公司 Electronic expansion valve
JP2022087189A (en) * 2018-08-17 2022-06-09 浙江盾安人工環境股▲ふん▼有限公司 Electronic expansion valve
JP7369225B2 (en) 2018-08-17 2023-10-25 浙江盾安人工環境股▲ふん▼有限公司 electronic expansion valve
JP7439161B2 (en) 2018-08-17 2024-02-27 浙江盾安人工環境股▲ふん▼有限公司 electronic expansion valve
JP7448580B2 (en) 2018-08-17 2024-03-12 浙江盾安人工環境股▲ふん▼有限公司 electronic expansion valve
CN114688268A (en) * 2019-03-05 2022-07-01 株式会社鹭宫制作所 Electric valve and refrigeration cycle system
JP2021038802A (en) * 2019-09-03 2021-03-11 株式会社鷺宮製作所 Electric valve and refrigeration cycle system
JP7123020B2 (en) 2019-09-03 2022-08-22 株式会社鷺宮製作所 Electric valve and refrigeration cycle system
JP2021188645A (en) * 2020-05-27 2021-12-13 株式会社不二工機 Electric valve
JP7106154B2 (en) 2020-05-27 2022-07-26 株式会社不二工機 electric valve

Also Published As

Publication number Publication date
CN108343750A (en) 2018-07-31
CN108343750B (en) 2020-07-24
JP6753789B2 (en) 2020-09-09

Similar Documents

Publication Publication Date Title
JP6748591B2 (en) Motorized valve and refrigeration cycle system
JP2018119595A (en) Motor valve and refrigeration cycle system
JP6889685B2 (en) Electric valve and refrigeration cycle system
JP2012197990A (en) Expansion valve
JP7481562B2 (en) Motor-operated valve and refrigeration cycle system
CN108331923B (en) Electric valve and refrigeration cycle system
JP2021038802A (en) Electric valve and refrigeration cycle system
JP7462282B2 (en) Motor-operated valve
JP7144994B2 (en) Electric valve and refrigeration cycle system
CN108375250B (en) Electric valve and refrigeration cycle system
JP6909756B2 (en) Electric valve and refrigeration cycle system
JP7422189B2 (en) electric valve
JP6544732B2 (en) Motorized valve
CN109253533B (en) Electric valve and refrigeration cycle system
CN113932022B (en) Electric valve and refrigeration cycle system
JP7271486B2 (en) Electric valve and refrigeration cycle system
JP7161016B2 (en) Electric valve and refrigeration cycle system
JP7161515B2 (en) Electric valve and refrigeration cycle system
WO2021106933A1 (en) Power element and expansion valve using same
JP2012246937A (en) Control valve and power element
JP2022021471A (en) Electrically-operated valve and refrigeration cycle system
JP2021101120A (en) Motor-operated valve and refrigeration cycle system
JP2021085546A (en) Power element and expansion valve using the same
JP2022034213A (en) Motor valve and refrigeration cycle system
JP2021188662A (en) Electric-operated valve

Legal Events

Date Code Title Description
RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20180119

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20180814

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190111

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20191023

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20191029

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20191217

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200303

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200413

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20200804

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20200820

R150 Certificate of patent or registration of utility model

Ref document number: 6753789

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150