JP2008232276A - Motor-operated valve - Google Patents

Motor-operated valve Download PDF

Info

Publication number
JP2008232276A
JP2008232276A JP2007073243A JP2007073243A JP2008232276A JP 2008232276 A JP2008232276 A JP 2008232276A JP 2007073243 A JP2007073243 A JP 2007073243A JP 2007073243 A JP2007073243 A JP 2007073243A JP 2008232276 A JP2008232276 A JP 2008232276A
Authority
JP
Japan
Prior art keywords
valve
valve seat
motor
guide
rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2007073243A
Other languages
Japanese (ja)
Inventor
Takeshi Suganuma
威 菅沼
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.)
Fujikoki Corp
Original Assignee
Fujikoki Corp
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 Fujikoki Corp filed Critical Fujikoki Corp
Priority to JP2007073243A priority Critical patent/JP2008232276A/en
Priority to CNA2008100871562A priority patent/CN101294634A/en
Publication of JP2008232276A publication Critical patent/JP2008232276A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Electrically Driven Valve-Operating Means (AREA)
  • Details Of Valves (AREA)
  • Valve Housings (AREA)
  • Lift Valve (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motor-operated valve that prevents displacement or inclination of a valve element with respect to a valve seat portion in a valve chamber forming member of a press-molded article and that does not cause uneven abrasion of the valve seat portion, leakage from the valve in a closed state, undesirable valve vibration, abnormal noise, fluctuation in flow rate or increase in sliding resistance. <P>SOLUTION: The motor-operated valve includes a can 40, a rotor 30 located at an inner periphery of the can 40, a valve shaft 60 connected and secured to the rotor 30, the valve element 61 provided at the lower end of the valve shaft 60, a guide stem 80 arranged in the can 40 so as to guide vertical movement of the valve shaft 60 and the valve element 61, the valve chamber forming member 74 of the press-molded article for forming a valve chamber 71 into/from which fluid is introduced/discharged, a valve main body 70 having a valve seat member 72 of an article formed by cutting and provided with the valve seat portion 72b with or from which the valve element 61 makes contact or separates, and a screw feed mechanism 16 for abutting/separating the valve element 61 on/from the valve seat portion 72b when the rotor 30 rotates. A guide portion 73 for guiding the vertical movement of the valve element 61 is formed integrally with the valve seat member 72 by cutting operation. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、空気調和機、冷蔵庫等の冷凍サイクルに流量制御弁等として組み込まれて使用される、ステッピングモータ駆動式の電動弁に関する。   The present invention relates to an electric valve driven by a stepping motor that is used as a flow control valve or the like in a refrigeration cycle such as an air conditioner or a refrigerator.

空気調和機、冷蔵庫等に組み込まれて使用される電動弁としては、例えば、図２に示される如くのものが知られている。図示例の電動弁１０’は、キャン４０と、該キャン４０内に配置された円筒部を有するガイドステム８０と、前記キャン４０の内周に配在されたロータ３０と、該ロータ３０に連結固定された弁軸６０（ロータ軸）と、該弁軸６０の下端部に設けられて前記ガイドステム８０の円筒部８１に内挿された円筒状の弁ホルダ５５と、該弁ホルダ５５に、前記弁軸６０に対して軸方向の相対移動及び相対回転可能な状態でその上部が内挿され、かつ、前記弁軸６０との間に縮装されたコイルばね６４により下方に付勢されるとともに、前記弁ホルダ５５の下端部に設けられた係止部６３により抜け止め係止される弁体６１と、流体が入出せしめられる弁室７１を形成するプレス成形品からなる弁室形成部材７４及び前記弁体６１が接離する弁シート部７２ｂが設けられた切削加工品からなる弁座部材７２を有する弁本体７０と、前記ロータ３０の回転に伴って前記弁体６１を前記弁シート部７２ｂに対して接離させるためのねじ送り機構１６（２８、２９）とを備えたステッピングモータ駆動式のものが知られている。   As an electric valve used by being incorporated in an air conditioner, a refrigerator, or the like, for example, a valve as shown in FIG. 2 is known. The illustrated motor-operated valve 10 ′ is connected to the can 40, a guide stem 80 having a cylindrical portion disposed in the can 40, the rotor 30 disposed on the inner periphery of the can 40, and the rotor 30. A fixed valve shaft 60 (rotor shaft), a cylindrical valve holder 55 provided at a lower end portion of the valve shaft 60 and inserted in a cylindrical portion 81 of the guide stem 80, and the valve holder 55 The upper part of the valve shaft 60 is inserted in a state in which the valve shaft 60 can be relatively moved and rotated in the axial direction, and is biased downward by a coil spring 64 that is compressed between the valve shaft 60 and the valve shaft 60. At the same time, a valve body 61 is formed of a press-molded product that forms a valve chamber 61 into which a fluid is allowed to enter and exit, and a valve body 61 that is prevented from coming off by a locking portion 63 provided at the lower end of the valve holder 55. And the valve seat on which the valve body 61 contacts and separates A valve main body 70 having a valve seat member 72 made of a cut product provided with 72b, and a screw feed mechanism for bringing the valve body 61 into and out of contact with the valve seat portion 72b as the rotor 30 rotates. A stepping motor drive type having 16 (28, 29) is known.

かかる構成の電動弁１０’では、ロータ３０が回転せしめられると、それと一体に弁軸６０が回転せしめられ、このとき、前記ねじ送り機構１６により弁軸６０が弁体６１を伴って前記ガイドステム８０に案内されながら昇降せしめられ、これによって、弁開度（開弁量）が変化して冷媒の通過流量が調整される。   In the motor-operated valve 10 ′ having such a configuration, when the rotor 30 is rotated, the valve shaft 60 is rotated integrally therewith. At this time, the valve shaft 60 is accompanied by the valve body 61 by the screw feed mechanism 16 and the guide stem. The valve is raised and lowered while being guided by 80, whereby the valve opening (the amount of valve opening) changes and the flow rate of the refrigerant is adjusted.

かかる電動弁１０’と同類のものとしては、下記特許文献１、２に所載のものが挙げられる。   Examples of the motor valve 10 'are similar to those described in Patent Documents 1 and 2 below.

特開2003-148643号公報JP2003-148643 特開2003-287151号公報JP 2003-287151 A

ところで、前記電動弁１０’及び前記特許文献１に所載の電動弁は、弁本体７０を構成する弁室形成部材７４は、切削加工品に比べて、製作コストは安いが寸法精度が若干低いプレス成形品であるとともに、該弁室形成部材７４に切削加工品である弁シート部材７２ｂ及びプレス成形品であるガイド部材（ガイドステム８０）が取り付けられていることから、各部品の加工組立誤差、ばらつき等に起因して、弁座部材７２に形成された弁シート部７２ｂ、弁口７２ａ（の中心線Ｏ）に対して、前記弁体６１（の中心線）が位置ずれ（軸ずれ）を生じたり、傾斜してしまうことがあった。このような位置ずれや傾斜を生じると、弁シート部７２ｂに偏摩耗が生じたり、閉弁状態において弁漏れを生じたり、不所望な弁振動が生じて異音が発生したり、流量がばらついたり、摺動抵抗が増大して正常に動作しなくなる等の問題が生じる。   By the way, in the motor-operated valve 10 'and the motor-operated valve described in Patent Document 1, the valve chamber forming member 74 constituting the valve body 70 is lower in manufacturing cost but slightly lower in dimensional accuracy than a machined product. In addition to being a press-formed product, a valve seat member 72b, which is a cut product, and a guide member (guide stem 80), which is a press-formed product, are attached to the valve chamber forming member 74. Due to variations, the valve body 61 (center line thereof) is displaced (axial deviation) with respect to the valve seat portion 72b and the valve port 72a (center line O thereof) formed on the valve seat member 72. May occur or tilt. When such a positional deviation or inclination occurs, uneven wear occurs in the valve seat portion 72b, valve leakage occurs in the closed state, undesired valve vibration occurs, abnormal noise occurs, or the flow rate varies. Or the sliding resistance increases, causing problems such as failure of normal operation.

また、前記特許文献２に所載の電動弁では、弁シート部材とガイド部材は一体部品で構成されているが、弁室形成部材を切削加工で製作するようにされているので、コストの点で問題がある。   Further, in the motor-operated valve described in Patent Document 2, the valve seat member and the guide member are formed as an integral part, but the valve chamber forming member is manufactured by cutting, so that the cost is low. There is a problem.

本発明は、このような事情に鑑みてなされたもので、その目的とするところは、プレス成形品の弁室形成部材を用いてコストを低く抑えたもとでも、弁シート部に対して弁体が位置ずれや傾斜を生じないようにされ、もって、弁シート部の偏摩耗、閉弁状態における弁漏れ、不所望な弁振動・異音、流量のばらつき、摺動抵抗の増大等を招くことがないようにされた電動弁を提供することにある。   The present invention has been made in view of such circumstances, and the purpose of the present invention is to provide a valve body with respect to the valve seat portion even when the cost is kept low using a valve chamber forming member of a press-formed product. This prevents misalignment and inclination, which may lead to uneven wear of the valve seat, valve leakage in the closed state, undesired valve vibration / abnormal noise, flow rate variation, increased sliding resistance, etc. An object is to provide a motorized valve which is not to be provided.

前記の目的を達成すべく、本発明に係る電動弁は、キャンと、前記キャンの内周に配在されたロータと、該ロータに連結固定された弁軸と、該弁軸の下端部に設けられた弁体と、該キャン内に配置されて前記弁軸及び弁体の昇降を案内するガイドステムと、流体が入出せしめられる弁室を形成するプレス成形品からなる弁室形成部材、及び、前記弁体が接離する弁シート部が設けられた、切削加工品からなる弁座部材を有する弁本体と、前記ロータの回転に伴って前記弁体を前記弁シート部に対して接離させるためのねじ送り機構とを備える。   In order to achieve the above object, an electric valve according to the present invention includes a can, a rotor disposed on the inner periphery of the can, a valve shaft connected and fixed to the rotor, and a lower end portion of the valve shaft. A provided valve body, a guide stem disposed in the can for guiding the valve shaft and the valve body to be raised and lowered, a valve chamber forming member formed of a press-molded product that forms a valve chamber into and out of fluid, and A valve body having a valve seat member made of a machined product, provided with a valve seat portion that contacts and separates the valve body, and the valve body is brought into contact with and separated from the valve seat portion as the rotor rotates. And a screw feed mechanism.

そして、前記弁体の昇降を案内するガイド部が切削加工により前記弁座部材と一体に形成されていることを特徴としている。   And the guide part which guides the raising / lowering of the said valve body is integrally formed with the said valve seat member by cutting, It is characterized by the above-mentioned.

前記ガイド部は、好ましくは、前記弁シート部の周りに複数のスリットないし透孔が形成された円筒状体で構成される。   The guide part is preferably formed of a cylindrical body in which a plurality of slits or through holes are formed around the valve seat part.

また、前記ガイド部は、冷媒中に含まれる気泡を破壊する手段を兼ねることを特徴としている。   In addition, the guide portion also serves as a means for destroying bubbles contained in the refrigerant.

本発明に係る電動弁では、弁室形成部材はプレス成形品とされるが、弁体の昇降を案内するガイド部が切削加工により弁座部材と一体に設けられる。このため、弁座部材に形成される弁シート部に対してガイド部をプレス成形品に比べて高精度に造設することが可能となる。つまり、弁シート部（の中心線）に対して、ガイド部（の中心線）が正確に作られるため、このガイド部に案内される弁体（の中心線）は、弁シート部に対して位置ずれ（軸ずれ）や傾斜をほとんど生じないことになる。   In the motor-operated valve according to the present invention, the valve chamber forming member is a press-molded product, but a guide portion that guides the raising and lowering of the valve body is provided integrally with the valve seat member by cutting. For this reason, it becomes possible to construct a guide part with high precision with respect to the valve seat part formed in a valve seat member compared with a press-formed product. That is, since the guide part (center line) is accurately made with respect to the valve seat part (center line thereof), the valve body (center line) guided by the guide part is There will be almost no displacement (axial displacement) or inclination.

したがって、本発明の電動弁では、プレス成形品の弁室形成部材を用いてコストを低く抑えたもとでも、弁シート部に対して弁体が位置ずれや傾斜を生じ難くできるので、弁シート部の偏摩耗、閉弁状態における弁漏れ、不所望な弁振動・異音、流量のばらつき、摺動抵抗の増大等を招くことがないようにできる。   Therefore, in the motor-operated valve of the present invention, the valve body is less likely to be displaced or inclined with respect to the valve seat portion even when the cost is kept low by using the valve chamber forming member of the press molded product. Uneven wear, valve leakage in the closed state, undesired valve vibration / abnormal noise, variation in flow rate, increase in sliding resistance, etc. can be avoided.

以下、本発明の電動弁の実施形態を図面を参照しながら説明する。
図１は、本発明に係る電動弁の一実施形態を示す図である。
図１に示される電動弁１０は、弁本体７０及び弁体６１以外の部分は、前述した図２に示される電動弁１０’と略同じ構成であるので、ここでは、同一構成・機能部分には共通の符号を付して重複説明を省略し、以下においては相違点を重点的に説明する。 Hereinafter, embodiments of the motor-operated valve of the present invention will be described with reference to the drawings.
FIG. 1 is a view showing an embodiment of an electric valve according to the present invention.
The motor-operated valve 10 shown in FIG. 1 has substantially the same configuration as the motor-operated valve 10 ′ shown in FIG. 2 except for the valve main body 70 and the valve body 61. Are denoted by the same reference numerals and redundant description is omitted, and differences will be mainly described below.

図１に示される電動弁１０において、弁本体７０は、流体が入出せしめられる弁室７１を形成するプレス成形品からなる弁室形成部材７４と、弁体６１が接離する弁シート部７２ｂが設けられた、切削加工品からなる弁座部材７２とを備えている。   In the motor-operated valve 10 shown in FIG. 1, the valve main body 70 includes a valve chamber forming member 74 formed of a press-molded product that forms a valve chamber 71 into which fluid is allowed to enter and exit, and a valve seat portion 72 b to which the valve body 61 contacts and separates. And a valve seat member 72 made of a machined product.

また、弁体６１には、円錐弁部６１ａの上部に比較的長い大径円柱部６１ｄが設けられている。   The valve body 61 is provided with a relatively long large-diameter cylindrical portion 61d on the top of the conical valve portion 61a.

そして、前記弁座部材７２に形成された弁シート部７２ｂに対して、前記弁体６１が位置ずれ、傾斜等を生じないように、前記弁体６１の昇降を案内するガイド部７３が切削加工により前記弁座部材７２と一体に設けられている。   And the guide part 73 which guides the raising / lowering of the said valve body 61 with respect to the valve seat part 72b formed in the said valve seat member 72 so that the said valve body 61 does not produce position shift, inclination, etc. is cut. Is provided integrally with the valve seat member 72.

前記ガイド部７３は、前記弁シート部７２ｂの周りにそれと同心に立設された、３以上のスリット７３ｂが形成されるとともに、その上端部に前記弁体６１の外周面に接触するリング状の案内支持部７３ａを有する円筒状体で構成されている。   The guide portion 73 has a ring-like shape that is formed around the valve seat portion 72b concentrically with the three or more slits 73b and contacts the outer peripheral surface of the valve body 61 at an upper end portion thereof. It is comprised with the cylindrical body which has the guide support part 73a.

このような構成とされた本実施形態の電動弁１０では、弁室形成部材７４はプレス成形品とされるが、弁体６１の昇降を案内するガイド部７３が切削加工により弁座部材７２と一体に設けられる。このため、弁座部材７２に形成される弁シート部７２ｂに対してガイド部７３をプレス成形品に比べて高精度に造設することが可能となる。つまり、弁シート部７２ｂ（の中心線Ｏ）に対して、ガイド部７３（の中心線）が正確に作られるため、このガイド部７３に案内される弁体６１（の中心線）は、弁シート部７２ｂに対して位置ずれ（軸ずれ）や傾斜をほとんど生じないことになる。   In the motor-operated valve 10 of this embodiment configured as described above, the valve chamber forming member 74 is a press-molded product, but the guide portion 73 that guides the raising and lowering of the valve body 61 is cut into the valve seat member 72 by cutting. Provided integrally. For this reason, it becomes possible to construct the guide part 73 with high precision with respect to the valve seat part 72b formed in the valve seat member 72 as compared with the press-formed product. That is, since the guide portion 73 (center line) is accurately made with respect to the valve seat portion 72b (center line O), the valve body 61 (center line) guided by the guide portion 73 is Positional misalignment (axial misalignment) and inclination hardly occur with respect to the sheet portion 72b.

したがって、本実施形態の電動弁１０では、プレス成形品の弁室形成部材７４を用いてコストを低く抑えたもとでも、弁シート部７２ｂに対して弁体６１が位置ずれや傾斜を生じ難くできるので、弁シート部７２ｂの偏摩耗、閉弁状態における弁漏れ、不所望な弁振動・異音、流量のばらつき、摺動抵抗の増大等を招くことがないようにできる。   Therefore, in the motor-operated valve 10 of the present embodiment, the valve body 61 can be less likely to be displaced or inclined with respect to the valve seat portion 72b even when the cost is kept low by using the valve chamber forming member 74 of a press-molded product. Further, uneven wear of the valve seat portion 72b, valve leakage in a closed state, undesired valve vibration / abnormal noise, variation in flow rate, increase in sliding resistance, and the like can be prevented.

なお、前記円筒状のガイド部７３に設けたスリット７３ｂや透孔を弁室７１内の冷媒中に含まれる気泡が破壊されるようにすることで、騒音低減効果が得られる。   In addition, the noise reduction effect is acquired by making the bubble 73 contained in the refrigerant | coolant in the valve chamber 71 destroy the slit 73b and through-hole which were provided in the said cylindrical guide part 73. FIG.

本発明に係る電動弁の一実施形態のステータを除いた主要部の縦断面図。The longitudinal cross-sectional view of the principal part except the stator of one Embodiment of the electrically operated valve which concerns on this invention. 従来の電動弁の一例のステータを除いた主要部の縦断面図。The longitudinal cross-sectional view of the principal part except the stator of an example of the conventional electrically operated valve.

符号の説明Explanation of symbols

１０ 電動弁
１６ ねじ送り機構
３０ ロータ
４０ キャン
５５ 弁ホルダ
６０ 弁軸
６１ 弁体
７０ 弁本体
７１ 弁室
７２ 弁座部材
７２ａ 弁口
７２ｂ 弁シート部
７３ ガイド部
７３ａ 案内支持部
７３ｂ スリット
７４ 弁室形成部材
８０ ガイドステム
８１ 円筒部 10 Motorized valve 16 Screw feed mechanism 30 Rotor 40 Can 55 Valve holder 60 Valve shaft 61 Valve body 70 Valve body 71 Valve chamber 72 Valve seat member 72a Valve port 72b Valve seat portion 73 Guide portion 73a Guide support portion 73b Slit 74 Valve chamber formation Member 80 Guide stem 81 Cylindrical part

Claims (3)

キャンと、該キャンの内周に配在されたロータと、該ロータに連結固定された弁軸と、該弁軸の下端部に設けられた弁体と、前記キャン内に配置されて前記弁軸及び弁体の昇降を案内するガイドステムと、流体が入出せしめられる弁室を形成するプレス成形品からなる弁室形成部材、及び、前記弁体が接離する弁シート部が設けられた、切削加工品からなる弁座部材を有する弁本体と、前記ロータの回転に伴って前記弁体を前記弁シート部に対して接離させるためのねじ送り機構とを備えた電動弁であって、
前記弁体の昇降を案内するガイド部が切削加工により前記弁座部材と一体に形成されていることを特徴とする電動弁。 A can, a rotor disposed on the inner periphery of the can, a valve shaft connected and fixed to the rotor, a valve body provided at a lower end of the valve shaft, and the valve disposed in the can A guide stem for guiding the shaft and the valve body to move up and down, a valve chamber forming member made of a press-molded product that forms a valve chamber into which fluid is allowed to flow in and out, and a valve seat portion to which the valve body comes in contact with and separated from, A motor-operated valve comprising a valve body having a valve seat member made of a machined product, and a screw feed mechanism for bringing the valve body into and out of contact with the valve seat portion as the rotor rotates.
The motor-operated valve characterized by the guide part which guides the raising / lowering of the said valve body being integrally formed with the said valve seat member by cutting. 前記ガイド部は、前記弁シート部の周りに複数のスリットないし透孔が形成された円筒状体で構成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 motor-driven valve according to claim 1, wherein the guide portion is configured by a cylindrical body having a plurality of slits or through holes formed around the valve seat portion. 前記ガイド部は、冷媒中に含まれる気泡を破壊する手段を兼ねることを特徴とする請求項１又は２に記載の電動弁。   The motor-driven valve according to claim 1 or 2, wherein the guide portion also serves as a means for destroying bubbles contained in the refrigerant.
JP2007073243A 2007-03-20 2007-03-20 Motor-operated valve Pending JP2008232276A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2007073243A JP2008232276A (en) 2007-03-20 2007-03-20 Motor-operated valve
CNA2008100871562A CN101294634A (en) 2007-03-20 2008-03-19 Electric valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007073243A JP2008232276A (en) 2007-03-20 2007-03-20 Motor-operated valve

Publications (1)

Publication Number Publication Date
JP2008232276A true JP2008232276A (en) 2008-10-02

Family

ID=39905330

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007073243A Pending JP2008232276A (en) 2007-03-20 2007-03-20 Motor-operated valve

Country Status (2)

Country Link
JP (1) JP2008232276A (en)
CN (1) CN101294634A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103261766A (en) * 2010-10-15 2013-08-21 浙江三花股份有限公司 Electrical valve
CN103363122A (en) * 2012-03-27 2013-10-23 株式会社鹭宫制作所 Electrically-operated valve
WO2014163208A1 (en) * 2013-04-05 2014-10-09 日本電産サンキョー株式会社 Valve device
JP2015086996A (en) * 2013-11-01 2015-05-07 株式会社不二工機 Electric drive valve
JP2019019983A (en) * 2018-09-25 2019-02-07 株式会社不二工機 Electrical drive valve
US10267434B2 (en) 2016-08-04 2019-04-23 Pacific Industrial Co., Ltd. Motor-operated valve
JP2021526196A (en) * 2018-08-17 2021-09-30 浙江盾安人工環境股▲ふん▼有限公司Ｚｈｅｊｉａｎｇ ＤｕｎＡｎ Ａｒｔｉｆｉｃｉａｌ Ｅｎｖｉｒｏｎｍｅｎｔ Ｃｏ．， Ｌｔｄ Electronic expansion valve

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102235531A (en) * 2010-04-28 2011-11-09 浙江三花股份有限公司 Electric valve and valve seat thereof
CN102252119A (en) * 2010-05-21 2011-11-23 浙江三花股份有限公司 Electrically operated valve and heat exchange device comprising same
JP5681396B2 (en) * 2010-06-29 2015-03-04 株式会社不二工機 Motorized valve
CN101907175A (en) * 2010-07-12 2010-12-08 无锡市弼程机电设备有限公司 Automatic inflation valve of pressure disc type hot melt glue machine
CN102853086B (en) * 2011-07-01 2014-05-14 浙江三花股份有限公司 Electrically operated valve device
JP5400122B2 (en) * 2011-10-27 2014-01-29 株式会社鷺宮製作所 Motorized valve
CN103133707B (en) * 2011-11-22 2015-03-25 浙江三花股份有限公司 Motorized valve and manufacture method of motorized valve
CN103133701B (en) * 2011-11-22 2016-08-03 浙江三花股份有限公司 A kind of electrodynamic valve
JP5701825B2 (en) * 2012-08-08 2015-04-15 株式会社鷺宮製作所 Flow control valve
CN104896810A (en) * 2014-03-05 2015-09-09 浙江盾安禾田金属有限公司 Electronic expansion valve
JP6214487B2 (en) * 2014-07-18 2017-10-18 株式会社鷺宮製作所 Motorized valve
JP6555895B2 (en) * 2015-02-17 2019-08-07 株式会社不二工機 Motorized valve
JP6768297B2 (en) * 2016-01-20 2020-10-14 株式会社不二工機 Flow control valve
JP6722274B2 (en) * 2016-03-31 2020-07-15 株式会社鷺宮製作所 Motorized valve and refrigeration cycle system
WO2019148692A1 (en) * 2018-01-31 2019-08-08 浙江三花制冷集团有限公司 Electric valve and manufacturing method therefor
CN117823631A (en) * 2022-09-29 2024-04-05 浙江三花汽车零部件有限公司 Electric valve

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5945364U (en) * 1982-09-20 1984-03-26 株式会社山武 cage valve
JPS61138974U (en) * 1985-02-20 1986-08-28
JPS6346780Y2 (en) * 1981-08-18 1988-12-05
JPH0112044Y2 (en) * 1981-12-10 1989-04-10
JPH0444152B2 (en) * 1984-07-16 1992-07-20 Toshiba Machine Co Ltd
JPH11502285A (en) * 1995-03-23 1999-02-23 マンネスマン レックスロート ゲゼルシャフト ミット ベシュレンクテル ハフツング 2-way insert valve
JP2002310325A (en) * 2001-04-06 2002-10-23 Keihin Corp Solenoid valve
JP2003148643A (en) * 2001-09-03 2003-05-21 Saginomiya Seisakusho Inc Electric valve
JP2003287151A (en) * 2002-03-27 2003-10-10 Fuji Koki Corp Motor-operated valve
CN2654971Y (en) * 2003-10-01 2004-11-10 浙江三花股份有限公司 Electronic expansion valve body structure
JP2005042863A (en) * 2003-07-24 2005-02-17 Yamatake Corp Cage valve

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6346780Y2 (en) * 1981-08-18 1988-12-05
JPH0112044Y2 (en) * 1981-12-10 1989-04-10
JPS5945364U (en) * 1982-09-20 1984-03-26 株式会社山武 cage valve
JPH0444152B2 (en) * 1984-07-16 1992-07-20 Toshiba Machine Co Ltd
JPS61138974U (en) * 1985-02-20 1986-08-28
JPH11502285A (en) * 1995-03-23 1999-02-23 マンネスマン レックスロート ゲゼルシャフト ミット ベシュレンクテル ハフツング 2-way insert valve
JP2002310325A (en) * 2001-04-06 2002-10-23 Keihin Corp Solenoid valve
JP2003148643A (en) * 2001-09-03 2003-05-21 Saginomiya Seisakusho Inc Electric valve
JP2003287151A (en) * 2002-03-27 2003-10-10 Fuji Koki Corp Motor-operated valve
JP2005042863A (en) * 2003-07-24 2005-02-17 Yamatake Corp Cage valve
CN2654971Y (en) * 2003-10-01 2004-11-10 浙江三花股份有限公司 Electronic expansion valve body structure

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103261766A (en) * 2010-10-15 2013-08-21 浙江三花股份有限公司 Electrical valve
JP2013539850A (en) * 2010-10-15 2013-10-28 浙江三花股▲ふん▼有限公司 Motorized valve
CN103363122A (en) * 2012-03-27 2013-10-23 株式会社鹭宫制作所 Electrically-operated valve
WO2014163208A1 (en) * 2013-04-05 2014-10-09 日本電産サンキョー株式会社 Valve device
JPWO2014163208A1 (en) * 2013-04-05 2017-02-16 日本電産サンキョー株式会社 Valve device
JP2015086996A (en) * 2013-11-01 2015-05-07 株式会社不二工機 Electric drive valve
US10267434B2 (en) 2016-08-04 2019-04-23 Pacific Industrial Co., Ltd. Motor-operated valve
JP2021526196A (en) * 2018-08-17 2021-09-30 浙江盾安人工環境股▲ふん▼有限公司Ｚｈｅｊｉａｎｇ ＤｕｎＡｎ Ａｒｔｉｆｉｃｉａｌ Ｅｎｖｉｒｏｎｍｅｎｔ Ｃｏ．， Ｌｔｄ Electronic expansion valve
KR20210154205A (en) * 2018-08-17 2021-12-20 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 Electronic expansion valve
KR102454733B1 (en) * 2018-08-17 2022-10-14 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 Electronic expansion valve
JP7224366B2 (en) 2018-08-17 2023-02-17 浙江盾安人工環境股▲ふん▼有限公司 electronic expansion valve
JP2019019983A (en) * 2018-09-25 2019-02-07 株式会社不二工機 Electrical drive valve

Also Published As

Publication number Publication date
CN101294634A (en) 2008-10-29

Similar Documents

Publication Publication Date Title
JP2008232276A (en) Motor-operated valve
CN107237913B (en) Electric valve and assembling method thereof
JP6461872B2 (en) Motorized valve
JP4781010B2 (en) Motorized valve
JP4550528B2 (en) Motorized valve
JP4895532B2 (en) Motorized valve
JP5716980B2 (en) Motorized valve
JP2012172839A (en) Motor-operated valve
CN113324054B (en) Electric valve
JP2019168060A (en) Electrically drive valve
JP2018003899A (en) Motor-operated valve
JP2006348962A (en) Motor-operated valve
EP3366957B1 (en) Electric valve
CN111954776A (en) Electric valve
JP2016156437A (en) Electric valve
JP2016156429A (en) Electrical drive valve
JP6412443B2 (en) Motorized valve
JP6618977B2 (en) Motorized valve
JP2019124318A (en) Motor-operated valve
JP4855861B2 (en) Electric control valve
CN109723883B (en) Electric valve
JP2019138473A (en) Motor operated valve
JP2018200113A (en) Motor-operated valve
JP6933398B2 (en) Electric valve
JP2024519134A (en) Motor-operated valve

Legal Events

Date Code Title Description
A621 Written request for application examination

Effective date: 20100121

Free format text: JAPANESE INTERMEDIATE CODE: A621

A521 Written amendment

Effective date: 20100428

Free format text: JAPANESE INTERMEDIATE CODE: A821

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20111027

A131 Notification of reasons for refusal

Effective date: 20111213

Free format text: JAPANESE INTERMEDIATE CODE: A131

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120213

A131 Notification of reasons for refusal

Effective date: 20120710

Free format text: JAPANESE INTERMEDIATE CODE: A131

A02 Decision of refusal

Effective date: 20121106

Free format text: JAPANESE INTERMEDIATE CODE: A02