JP2006177503A - Motor-operated valve - Google Patents

Motor-operated valve Download PDF

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Publication number
JP2006177503A
JP2006177503A JP2004373550A JP2004373550A JP2006177503A JP 2006177503 A JP2006177503 A JP 2006177503A JP 2004373550 A JP2004373550 A JP 2004373550A JP 2004373550 A JP2004373550 A JP 2004373550A JP 2006177503 A JP2006177503 A JP 2006177503A
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Japan
Prior art keywords
valve
motor
valve body
opening
operated valve
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JP2004373550A
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Japanese (ja)
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JP4704027B2 (en
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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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Priority to JP2004373550A priority Critical patent/JP4704027B2/en
Priority to KR1020050080548A priority patent/KR101201448B1/en
Priority to CNB2005100958280A priority patent/CN100547271C/en
Publication of JP2006177503A publication Critical patent/JP2006177503A/en
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Publication of JP4704027B2 publication Critical patent/JP4704027B2/en
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    • 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
    • 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
    • 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

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

Abstract

<P>PROBLEM TO BE SOLVED: To prevent resonance generated on a can of a motor-operated valve. <P>SOLUTION: This motor-operated valve 1 comprises a valve body 10 having a valve seat 12 and a valve chest 14, and a valve element 30 is mounted in the valve chest 14. A valve rod 40 for operating the valve element 30 is sealed by a bellows 50. A threaded rod 70 is engaged with a guide member 60 to convert rotating motion into linear motion. An electric motor and a gear reducer are mounted in the metallic cylindrical can 200, and sealed in the can by a plate 90 and a seal member 80. The plate 90 has an opening 300 having a bottom 310. A thin portion 320 of seized rubber is ruptured to release high pressure when the inside of the can 200 has high pressure. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、電動弁、特にモータと歯車減速装置を円筒状のキャン内に装備する電動弁の改良に関する。   The present invention relates to an improvement of an electric valve, particularly an electric valve equipped with a motor and a gear reduction device in a cylindrical can.

弁室と弁座を有する弁本体内に弁体を配置し、弁体を操作する弁棒をベローズ内に配設して冷媒と弁棒の間をシールする構造の電動弁は、本出願人に係る下記の特許文献に開示されている。
この種の電動弁にあっては、電動モータと歯車減速装置をキャンと称する金属製の円筒状の部材の内に封止して、焼付ゴム等を用いたシール構造を備えて外部からの湿気の浸入等を防止している。歯車減速装置の回転出力は、ねじ機構により直線運動に変換され、弁棒に伝達される。
特開平１１−８２７９６号公報 An electric valve having a structure in which a valve body is disposed in a valve body having a valve chamber and a valve seat, and a valve rod for operating the valve body is disposed in the bellows to seal between the refrigerant and the valve rod. Are disclosed in the following patent documents.
In this type of electric valve, the electric motor and the gear reduction device are sealed in a metal cylindrical member called a can, and have a sealing structure using seizure rubber or the like to provide moisture from the outside. Prevents the intrusion of water. The rotational output of the gear reduction device is converted into a linear motion by a screw mechanism and transmitted to the valve stem.
Japanese Patent Laid-Open No. 11-82996

この種の電動弁にあっては、弁室に流入する高圧の冷媒をシールするベローズ周辺で何らかの原因で支障が発生すると、高圧の冷媒がキャン内に流入し、シール構造を破損する。
この際に、焼付ゴム等が破損して破裂音等を発生させる原因となる。
本発明の目的は、上述した不具合を解消する電動弁を提供することである。 In this type of motor-operated valve, when trouble occurs for some reason around the bellows that seals the high-pressure refrigerant flowing into the valve chamber, the high-pressure refrigerant flows into the can and breaks the seal structure.
At this time, the seizure rubber or the like is damaged, causing a plosive sound or the like.
An object of the present invention is to provide a motor-operated valve that solves the above-described problems.

本発明の電動弁は、弁室と弁座を有する弁本体と、弁本体内に装備される弁体と、弁体を操作する弁棒と、弁室と弁棒内部との間をシールするベローズと、回転運動を直線運動に変換するねじ部材と、電動モータと、電動モータの出力を減速してねじ部材に伝達する歯車減速装置を収容する金属製のキャンと、キャンの開口部を封止するシール構造部材を備え、キャンの開口部を封止するシール構造部材の一部にキャン内の高圧を開放する高圧開放部を備えるものである。
そして、高圧開放部は、金属製のプレートに焼付ゴムを積層したシール構造部材のプレートに設けた開口部と薄肉の焼付ゴムで構成されるか、または、シール構造部材に形成した開口部と、開口部を塞ぐ焼付ゴムで構成されるものである。 The motor-operated valve of the present invention seals a valve body having a valve chamber and a valve seat, a valve body provided in the valve body, a valve rod for operating the valve body, and a space between the valve chamber and the inside of the valve rod. Seals the bellows, a screw member that converts rotational motion into linear motion, an electric motor, a metal can that houses the gear reduction device that decelerates the output of the electric motor and transmits it to the screw member, and the opening of the can A sealing structure member for stopping is provided, and a high pressure opening portion for releasing the high pressure in the can is provided in a part of the sealing structure member for sealing the opening of the can.
And the high-pressure open part is composed of an opening provided on the plate of the seal structure member in which the baking rubber is laminated on the metal plate and the thin baking rubber, or an opening formed in the seal structure member, It is made of baking rubber that closes the opening.

本発明の電動弁は、上述した構成を備えることにより、キャン内に高圧冷媒が浸入したときに、高圧を確実に開放することができる。   By providing the above-described configuration, the motor-operated valve of the present invention can reliably release the high pressure when the high-pressure refrigerant enters the can.

図１は、本発明の電動弁の構造を示す説明図、図２、図３は要部の説明図である。
全体を符号１で示す電動弁は、弁座１２と弁室１４を有する弁本体１０を有し、弁室１４に通ずる２本の配管２０，２２が接続される弁室１４に挿入される弁体３０は、弁座１２に対向して流路面積を変化させる。 FIG. 1 is an explanatory view showing the structure of a motor-operated valve according to the present invention, and FIGS. 2 and 3 are explanatory views of main parts.
The motor-operated valve generally indicated by reference numeral 1 has a valve body 10 having a valve seat 12 and a valve chamber 14, and is a valve inserted into a valve chamber 14 to which two pipes 20 and 22 communicating with the valve chamber 14 are connected. The body 30 faces the valve seat 12 and changes the flow path area.

弁本体１０の弁室１４に連通する内径部１６には、ベローズ５０と、ベローズ５０の内側に挿入される弁棒４０が配設される。ベローズ５０の下端部は、弁棒４０に固定され、ベローズ５０の上端部はリング部材５２を介して弁本体１０に固定される。
弁本体１０の上部には、内ねじ部６２を有する案内部材６０が配設され、袋ナット６４で弁本体１０に固着される。 A bellows 50 and a valve rod 40 inserted inside the bellows 50 are disposed in the inner diameter portion 16 communicating with the valve chamber 14 of the valve body 10. A lower end portion of the bellows 50 is fixed to the valve rod 40, and an upper end portion of the bellows 50 is fixed to the valve main body 10 via a ring member 52.
A guide member 60 having an internal thread portion 62 is disposed on the upper portion of the valve body 10 and is fixed to the valve body 10 with a cap nut 64.

案内部材６０の内ねじ部６２に螺合する外ねじ部７２を有するねじ棒７０の下端部はボール４４を介して弁棒４０の上部の伝達部材４２を押圧し、弁棒４０を軸方向に移動させる。
案内部材６０の上部は、焼付ゴムによるシール部材８０、金属製のプレート９０が配設され、例えばカシメ手段により固着される。 A lower end portion of a screw rod 70 having an outer screw portion 72 screwed into an inner screw portion 62 of the guide member 60 presses the transmission member 42 on the upper portion of the valve stem 40 via the ball 44, and the valve stem 40 is moved in the axial direction. Move.
An upper portion of the guide member 60 is provided with a seal member 80 made of baking rubber and a metal plate 90, and is fixed by caulking means, for example.

プレート９０上にはベース１００が載置され、外周を覆うキャン２００のフランジ部２１０の下端部をカシメ加工することにより、キャン２００内に固定される。
ベース１００の上部には、ステータとその励磁コイルからなる励磁装置１１０が載置され、リード線１５０を介して給電される。リード線は、焼付ゴムによるシール部材８０と一体のリード線支持部８２に挿入され、接着剤１５２で封止される。励磁装置１１０の内側に配設されるロータ１２０は、励磁装置１１０に与えられるパルス電流により駆動される。ロータ１２０一体のピニオン１２４は、ギヤ１３０の大歯車３０ａを駆動し、大歯車１３０ａと一体の小歯車１３０ｂは、ギヤ１３１の大歯車１３１ａを駆動し、大歯車１３１ａと一体の小歯車１３１ｂはねじ棒７０と一体のギヤ１４０を駆動する。 The base 100 is placed on the plate 90 and is fixed in the can 200 by caulking the lower end portion of the flange portion 210 of the can 200 that covers the outer periphery.
An excitation device 110 including a stator and its excitation coil is placed on the base 100 and is supplied with power through a lead wire 150. The lead wire is inserted into a lead wire support portion 82 integral with a seal member 80 made of baking rubber and sealed with an adhesive 152. The rotor 120 disposed inside the excitation device 110 is driven by a pulse current applied to the excitation device 110. The pinion 124 integrated with the rotor 120 drives the large gear 30a of the gear 130, the small gear 130b integrated with the large gear 130a drives the large gear 131a of the gear 131, and the small gear 131b integrated with the large gear 131a is a screw. The gear 140 integrated with the rod 70 is driven.

以上の構成により、電動モータの出力は減速されてねじ棒７０に伝達される。ねじ棒７０は与えられた回転に応じて、ねじ機構により直線移動に変換され、弁棒４０を介して弁体３０を変位させる。
弁体３０とオリフィス１２の間に形成される流路面積に応じて弁室１４を通過する流体の流量が制御される。 With the above configuration, the output of the electric motor is decelerated and transmitted to the screw rod 70. The screw rod 70 is converted into a linear movement by a screw mechanism in accordance with the given rotation, and the valve body 30 is displaced via the valve rod 40.
The flow rate of the fluid passing through the valve chamber 14 is controlled according to the flow path area formed between the valve body 30 and the orifice 12.

キャン２００の内部には、モータが配設され、ロータ１２０はパルス運転を行なう。そして、本発明の電動弁にあっては、金属製のプレート９０と焼付ゴムによるシール部材８０で構成されるシール構造の一部に工具４００により、有底の開口部３００を設けたものである。   A motor is disposed inside the can 200, and the rotor 120 performs a pulse operation. In the motor-operated valve of the present invention, a bottomed opening 300 is provided by a tool 400 in a part of a seal structure including a metal plate 90 and a seal member 80 made of baking rubber. .

開口部３００の底部３１０と、シール部材８０の面８０ａとの間の薄肉部３２０は、高圧開放部として機能する。すなわち、薄肉部３２０の厚さ寸法Ｔ１は、キャン２００内の内圧が所定の値以上に上昇したときに、この薄肉部３２０が破壊されて、キャン２００の内圧を開放する値に設定される。   The thin portion 320 between the bottom portion 310 of the opening 300 and the surface 80a of the seal member 80 functions as a high-pressure open portion. That is, the thickness T1 of the thin wall portion 320 is set to a value at which the thin wall portion 320 is destroyed and the internal pressure of the can 200 is released when the internal pressure in the can 200 rises to a predetermined value or more.

この高圧開放部３２０は、焼付ゴムのシール部を薄肉部に形成することにかえて、例えば、貫通穴を設けておき、この貫通穴を焼付ゴムで塞いで高圧開放部を形成することもできる。
高圧開放部は、キャン内の圧力が所定の値以上になったときに、この内圧を確実に開放するものであればよく、種々の構造が採用できる。 The high-pressure opening 320 can be formed, for example, by forming a through hole and closing the through-hole with a baking rubber in place of forming the seal portion of the baking rubber into a thin portion. .
The high-pressure opening part may be any one that can reliably release the internal pressure when the pressure in the can becomes a predetermined value or more, and various structures can be employed.

本発明の電動弁の説明図。Explanatory drawing of the motor operated valve of this invention. 本発明の電動弁の要部の説明図。Explanatory drawing of the principal part of the motor operated valve of this invention. 本発明の電動弁の要部の説明図。Explanatory drawing of the principal part of the motor operated valve of this invention.

符号の説明Explanation of symbols

１ 電動弁
１０ 弁本体
１２ 弁座
１４ 弁室
３０ 弁体
４０ 弁棒
５０ ベローズ
６０ ねじ棒案内部材
７０ ねじ棒
８０ シール材
９０ プレート
１００ ベース
１１０ 励磁装置
１２０ ロータ
２００ キャン
３００ 開口部
３２０ 薄肉部 DESCRIPTION OF SYMBOLS 1 Motorized valve 10 Valve body 12 Valve seat 14 Valve chamber 30 Valve body 40 Valve rod 50 Bellows 60 Screw rod guide member 70 Screw rod 80 Sealing material 90 Plate 100 Base 110 Excitation device 120 Rotor 200 Can 300 Opening portion 320 Thin portion

Claims (3)

弁室と弁座を有する弁本体と、弁本体内に装備される弁体と、弁体を操作する弁棒と、弁室と弁棒内部との間をシールするベローズと、回転運動を直線運動に変換するねじ部材と、電動モータと、電動モータの出力を減速してねじ部材に伝達する歯車減速装置を収容する金属製のキャンと、キャンの開口部を封止するシール構造部材を備えた電動弁であって、
キャンの開口部を封止するシール構造部材の一部にキャン内の高圧を開放する高圧開放部を備える電動弁。 A valve body having a valve chamber and a valve seat, a valve body provided in the valve body, a valve rod for operating the valve body, a bellows for sealing between the valve chamber and the inside of the valve rod, and a linear rotation motion A screw member that converts into motion, an electric motor, a metal can that houses a gear reduction device that decelerates the output of the electric motor and transmits it to the screw member, and a seal structure member that seals the opening of the can A motorized valve,
A motor-operated valve comprising a high-pressure opening that opens a high pressure in a can in a part of a seal structure member that seals the opening of the can. 高圧開放部は、金属製のプレートに焼付ゴムを積層したシール構造部材のプレートに設けた開口部と薄肉の焼付ゴムで構成される請求項１記載の電動弁。   The motor-operated valve according to claim 1, wherein the high-pressure opening portion is constituted by an opening portion provided in a plate of a seal structure member in which a baking rubber is laminated on a metal plate and a thin baking rubber. 高圧開放部は、シール構造部材に形成した開口部と、開口部を塞ぐ焼付ゴムで構成される請求項１記載の電動弁。   The motor-operated valve according to claim 1, wherein the high-pressure opening portion includes an opening portion formed in the seal structure member and a baking rubber that closes the opening portion.
JP2004373550A 2004-12-24 2004-12-24 Motorized valve Active JP4704027B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2004373550A JP4704027B2 (en) 2004-12-24 2004-12-24 Motorized valve
KR1020050080548A KR101201448B1 (en) 2004-12-24 2005-08-31 Motor operated valve
CNB2005100958280A CN100547271C (en) 2004-12-24 2005-09-02 Mortor operated valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004373550A JP4704027B2 (en) 2004-12-24 2004-12-24 Motorized valve

Publications (2)

Publication Number Publication Date
JP2006177503A true JP2006177503A (en) 2006-07-06
JP4704027B2 JP4704027B2 (en) 2011-06-15

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JP (1) JP4704027B2 (en)
KR (1) KR101201448B1 (en)
CN (1) CN100547271C (en)

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CN106762913A (en) * 2017-01-24 2017-05-31 王安基 Servo forges valve and servo system soon

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CN102913676A (en) * 2011-08-01 2013-02-06 浙江三花股份有限公司 Electronic expansion valve and processing method thereof
KR101866430B1 (en) 2016-02-23 2018-06-11 그린산업 주식회사 Valve body structure for electronical expansion valve and manufacturing method for the same
KR102058114B1 (en) 2018-01-15 2019-12-20 그린산업 주식회사 Electronic expansion valve
KR102135309B1 (en) * 2018-10-10 2020-07-17 주식회사 클리셀 Proportional control valve apparatus for mixing incompressible fluid material

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JPS61177264A (en) * 1985-02-01 1986-08-08 Canon Inc Paper feeder
JPH01128072A (en) * 1987-11-12 1989-05-19 Mita Ind Co Ltd Unpleasant noise eliminating device for image forming device
JPH0225769A (en) * 1988-07-14 1990-01-29 Fujitsu Ltd Locating method for fault position of cable
JPH09100926A (en) * 1996-07-16 1997-04-15 Fuji Koki:Kk Safety valve
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JP2003197483A (en) * 2001-12-26 2003-07-11 Nok Corp Pressure relief valve
JP2004289901A (en) * 2003-03-20 2004-10-14 Fuji Koki Corp Motor assembly and motor-operated valve

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106762913A (en) * 2017-01-24 2017-05-31 王安基 Servo forges valve and servo system soon

Also Published As

Publication number Publication date
KR101201448B1 (en) 2012-11-14
JP4704027B2 (en) 2011-06-15
CN1793705A (en) 2006-06-28
CN100547271C (en) 2009-10-07
KR20060073427A (en) 2006-06-28

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