WO2012048594A1 - 电动阀及其止动装置 - Google Patents
电动阀及其止动装置 Download PDFInfo
- Publication number
- WO2012048594A1 WO2012048594A1 PCT/CN2011/076895 CN2011076895W WO2012048594A1 WO 2012048594 A1 WO2012048594 A1 WO 2012048594A1 CN 2011076895 W CN2011076895 W CN 2011076895W WO 2012048594 A1 WO2012048594 A1 WO 2012048594A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nut
- electric valve
- valve
- groove
- limiting
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
Definitions
- the invention relates to a valve, in particular to an electric valve and a stop device thereof.
- the existing electric valve includes an outer casing, a stator coil sleeved outside the outer casing, a valve seat connected to the lower portion of the outer casing, a magnetic rotor, a valve needle and a valve core seat disposed inside the outer casing, and a motor composed of the stator and the rotor for driving the valve Engage or separate the needle relative to the spool seat.
- the rotor rotates in the positive and negative directions, and the rotary motion of the rotor is converted into a linear displacement of the valve needle along the axial direction through the transmission of the screw and the nut, thereby adjusting the flow area of the valve port, thereby adjusting the flow into the evaporator.
- the refrigerant flow ensures efficient operation of the refrigeration system.
- the upper and lower limit positions of the stop means should be provided.
- Japanese Patent Publication No. JP2009162366A discloses an electric valve employing the above-described working principle, and axially displaces the valve needle within a predetermined range by a mating slip ring and a spring guide.
- the nut matched with the valve needle is assembled in the inner hole of the upper part of the guiding sleeve, and the guiding sleeve is welded and fixed with the valve seat;
- the retaining spring rail is sleeved outside the guiding sleeve, and the tail portion is inserted into the positioning hole of the guiding sleeve
- the tail of the spring rail needs to be fixed to fix the fixed spring rail;
- the spring rail is nested inside and outside the slip ring and the two are screwed together, and the slip ring can rotate along the spring rail under the action of the rotor stop And axial displacement until the slip ring abuts the upper or lower stop of the spring rail and is in the extreme working position.
- the spring rail In the spring rail assembly process of the above solution, first, the spring rail is inserted into the positioning hole of the guiding sleeve, and the tail is fixed to obtain a completely reliable positioning; secondly, before the spring rail tail is fixed, it needs to be controlled.
- the relative position of the spring rails to ensure their assembly accuracy.
- the technical problem to be solved by the present invention is to provide an electric valve stopping device for assembling a process cartridge to effectively control the process cost of the electric valve. Based on this, the present invention also provides an electric valve having the above-described stopper device.
- the electric valve stopping device comprises a spring guide rail and a slip ring which are internally and externally nested and screw-fitted, the spring rail has an upper stop portion and a lower stop portion, and further comprises a nut matched with the electric wide wire rod;
- the nut has a radially extending step surface, and a nut below the step surface fixedly connected to the electric valve seat has an engagement limiting surface;
- the spring rail is disposed on the nut above the step surface
- the lower stop portion radially extends to form a positioning portion that abuts against the step surface, and the lower stop portion below the positioning portion is engaged with the nut upper engagement limiting surface.
- the engaging limiting surface is specifically a circumferential limiting surface disposed axially on the nut and an axial limiting surface connected to the circumferential limiting surface; and the lowering of the positioning portion
- the moving portion is specifically a circumferential limiting portion formed in the axial direction and abutting the circumferential limiting surface, and an axis extending circumferentially of the circumferential limiting portion and forming the axis of the axial limiting surface To the limit department.
- the nut is made of a plastic material, and an annular metal connecting piece for fixedly connecting with the electric valve seat is fixedly mounted on the outer peripheral surface of the nut below the step surface.
- the nut is integrally injection molded with the annular metal connecting piece.
- a first groove axially disposed on the nut body between the step surface and the annular metal connecting piece and a circumferentially disposed second groove communicating with the first groove; the circumferential limiting surface And axial limiting surfaces are formed on the groove walls of the first groove and the second groove, respectively.
- a third EJ slot is axially disposed on the nut body between the stepped surface and the annular metal connecting piece, and an outer edge of the annular metal connecting piece is axially opposite to the third EJ slot.
- An opening, the circumferential limiting surface is formed on a groove wall of the third groove and a sidewall of the first opening, and the axial limiting surface is formed on the annular metal beside the first opening Connect the lower surface of the sheet.
- the outer edge of the annular metal connecting piece has a second opening, the circumferential limiting surface is formed on a sidewall of the second opening, and the axial limiting surface is formed in the second opening The lower surface of the side annular metal connecting piece.
- the electric valve provided by the present invention has a valve seat and an outer casing forming an internal cavity, and the inner cavity is provided with a stopping device matched with the wide needle screw assembly and the rotor, and the stopping device is as described above. Electric valve stop.
- the wide needle screw assembly comprises:
- valve needle disposed in the bottom valve seat of the valve seat, one end of which cooperates with the valve port, and the other end of which has an axially disposed inner concave cavity;
- Positioning the screw rod in the inner concave cavity has a first limiting portion extending radially outwardly, and an outer edge of the inner concave cavity of the valve needle has a second limiting portion extending radially inward
- the first limiting portion and the second limiting portion are matched to each other.
- the positioning portion radially extending from the lower stopping portion abuts against the step surface of the nut, thereby realizing the pre-assembled axial positioning of the spring rail, below the positioning portion
- the lower stop portion is engaged with the engagement limit surface on the nut to fix the spring guide.
- the spring rail is fixed by the circumferential limiting portion and the axial limiting portion with the circumferential limiting surface and the axial limiting surface on the nut, so that the relative position of the stopping spring rail is fixed.
- the assembly consistency is more easily ensured, further improving the assembly accuracy of the stop device.
- the nut is made of a plastic material, so that when the sliding ring is spirally fitted along the spring rail, the frictional resistance between the sliding ring and the outer peripheral surface of the plastic nut is relatively small, which can effectively reduce the electric valve. Resistance to rotor rotation.
- FIG. 1 is a schematic view showing the overall structure of an electric valve according to a first embodiment
- FIG. 2 is a schematic view showing the assembly of the stopping device of the electric valve according to the first embodiment
- Figure 3 is an isometric view of the rotor and the outer casing of the electric valve according to the first embodiment before installation;
- Figure 4 is a schematic view showing the assembly of the electric valve stopper device according to the second embodiment;
- Figure 5 is an isometric view of the rotor and the outer casing of the electric valve according to the second embodiment before installation
- Figure 6 is an isometric view of the rotor and the outer casing of the electric valve according to the third embodiment before installation.
- Valve needle 21 valve sleeve 22, lead screw 23, retaining ring 24, spring 25;
- the invention provides an electric valve stopping device with a single assembly process, the core design of which is: the nut matched with the electric valve screw has a radially extending step surface, and the nut below the step surface has a locking limit a spring guide is disposed on the nut above the step surface, and a lower stop portion thereof radially extends to form a positioning portion of the step surface, and a lower stop portion and the nut below the positioning portion The upper snap limit surface is engaged and positioned.
- This solution can effectively control the process cost of the electric valve, and the present embodiment will be specifically described below with reference to the drawings.
- FIG. 1 an overall structural diagram of an electric valve according to an embodiment is shown.
- the valve seat assembly is welded integrally with the valve seat 12 and the valve seat 12 and the connecting tubes 13, 14, and the outer casing 5 is fitted and welded to the valve seat 12 to form a closed valve chamber.
- a valve needle screw assembly, a nut assembly, a rotor assembly and a stop device are disposed in the valve chamber.
- the lower end of the valve needle 21 cooperates with the valve hole to open or close the electric valve
- the upper end has an axially disposed inner concave cavity
- the upper end portion thereof is welded integrally with the valve needle sleeve 22, that is, the inner concave shape is formed.
- the outer edge of the cavity has a second inwardly extending portion; the lower end of the lead screw 23 is inserted into the valve sleeve 22, and the head is welded with a retaining ring 24 that is received in the inner EJ cavity.
- Radially extending The first limiting portion, the retaining ring 24 and the valve needle sleeve 22 abut against each other to achieve axial limitation of the lead screw 23.
- a spring 25 is disposed in the inner cavity to facilitate the reset of the screw shaft 23.
- the spring 25 is not limited to the helical compression spring placed between the inner concave cavities after pre-compression as shown in the drawing, in fact, as long as it is a compression elastic which is pre-compressed in the inner concave cavity inside the screw rod Parts are available.
- the fixed connection relationship between the valve needle 21 and the valve needle sleeve 22 and between the screw rod 23 and the retaining ring 24 is not limited to welding, and other connection methods such as interference pressure matching may be employed.
- the nut assembly includes a plastic nut 32 and an annular metal connecting piece 31.
- the metal connecting piece 31 is embedded in the outer peripheral surface of the outer surface of the plastic nut for welding and fixing with the electric valve seat.
- the plastic nut 32 is preferably made of an engineering resin and injection molded with the annular metal connecting piece 31.
- the stopping device comprises a spring guide 33 and a slip ring 34 which are nested and screw-fitted inside and outside.
- the spring rail 33 is sleeved on the outer peripheral surface of the upper part of the plastic nut 32 and has an upper stop portion matched with the stop slip ring 34. And the lower stop.
- the rotor assembly is composed of a magnetic rotor 41, a rotor stopper 42 and a connecting body connecting the two, the magnetic rotor 41 is fitted on the outer side of the spring rail 33, and the rotor stopper 42 is axially extended to cooperate with the slip ring 34;
- the spring guide 33, the slip ring 34, and the rotor stop portion 42 constitute the electric wide stop mechanism.
- the engaging limiting surface is specifically a circumferential limiting surface disposed on the nut 32 and an axial limiting surface connected to the circumferential limiting surface; the spring rail 33 is positioned below the positioning portion
- the moving portion is specifically a circumferential limiting portion formed by axially extending against the circumferential limiting surface, and an axial limiting portion extending from the circumferential limiting portion and extending from the axial limiting surface, so that the axial limiting portion
- the assembly consistency of the relative positions of the stop spring guides is more easily ensured, and the assembly accuracy of the stop device is further improved. Please refer to FIG. 2 for details.
- FIG. 2 is a schematic view showing the assembly of the electric valve stopping device according to the embodiment.
- the plastic nut 32 is injection molded from engineering plastics, and the main body thereof can be divided into upper, middle and lower parts.
- the outer circumference of the upper portion 32a is a set portion of the spring guide 33; the outer diameter of the middle portion 32b is larger than the outer diameter of the upper portion, and the upper portion 32a and the middle portion
- a stepped surface is formed between 32b, and a central portion 32b is provided with a protruding portion 32d.
- a third recess 32e is disposed in the middle of the protruding portion 32d, and the metal connecting piece 31 is fixedly fixed in the middle portion 32b.
- the lower portion 32c serves to connect the spool seat 11 The role.
- the metal connecting piece 41 integrally molded with the nut 32 is provided with a plurality of openings 31c on the outer circumference thereof, wherein one opening 31c is provided in the plastic nut Directly below the protrusion 32d. That is, a circumferential limiting surface is formed on the groove wall of the third groove and the sidewall of the first opening, and the axial limiting surface is formed on the annular metal connecting piece on the side of the first opening lower surface.
- the opening 31c other than the opening 31c directly below the protruding portion 32d communicates with the upper and lower chambers of the metal connecting piece 31, and can balance the pressure in the two chambers.
- the spring guide 33 is wound by a steel wire.
- the main body of the spring guide 33 is a spiral guide portion 33b.
- the upper portion thereof is an upper stopper portion 33a
- the lower portion thereof is a lower stopper portion 33c.
- the lower stopper portion 33c is radially provided with a positioning portion that abuts against the step surface, and the positioning portion extends axially downward to extend the circumferential limiting portion 33d of the spring rail 33, and the circumferential limiting portion 33d extends circumferentially to The axial limit portion 33e of the spring guide 33.
- the slip ring 34 is also wound by a wire, and is composed of a stopper head 34a, a spiral guide portion 34b, and a stopper tail portion 34c in this order. Since the nut 32 is preferably made of a plastic material, when the slip ring 34 is screw-fitted along the spring rail 33, the frictional resistance against sliding between the outer peripheral surface of the plastic nut 32 is small, and the resistance of the rotation of the electric valve rotor can be effectively reduced.
- the assembly of the components of the stop device in this solution can be seen in the order of the arrows in FIG.
- the axis of the spiral guide portion 34b of the slip ring 34 is coincident with the axis of the spiral guide portion 33b of the spring guide 33 in the spiral direction of the spring guide 33 , and the slip ring 34 is placed on the first loop of the spring guide 33.
- the two are put together on the outer circumference of the upper portion 32a of the plastic nut 32 such that the positioning portion of the spring rail 33 abuts against the stepped surface of the nut 31, and the tail portion of the spring rail 33 (the axial limiting portion 33e) Pulling away from the axis, and then releasing the tail of the spring rail 33, the circumferential limiting portion 33d of the spring rail 33 returns to the original position under the elastic force, and is attached to the protruding portion of the plastic nut 32.
- the axial limiting portion 33e of the spring rail 33 is also fitted to the lower surface of the opening 31c side of the metal connecting piece 31, and the assembled spring guide is completed. 33 is fixed.
- FIG. 3 is an isometric view of the rotor and the outer casing of the electric valve according to the embodiment before being installed.
- the nut and the stop device assembled according to the above assembly method and sequence are placed on the valve seat assembly, that is, the lower portion of the plastic nut 32 is inserted into the valve core seat 11, and then welded (such as laser welding).
- the metal connecting piece 31 is welded to the upper end edge of the valve seat 12 to securely position the nut 32 to ensure that the nut 32 cannot be rotated or pulled out relative to the valve seat 12.
- the tail of the spring rail 33 will no longer be able to be pulled away from the axis due to the limitation of the valve seat 12 and the metal tab 31, so that the spring rail 33 is reliably restrained in a fixed position.
- the invention has the characteristics that the structural cylinder is reliable, and the fixing spring rail can be conveniently and quickly fixed during the assembly process, thereby effectively reducing the assembly process, thereby greatly reducing the process cost.
- the screw shaft 23 and the slip ring 34 are adjusted to a predetermined position; and the rotor 41 with the rotor stopper portion 42 is placed at a predetermined position. It is assembled to the top end of the lead screw 23, and the rotor connecting body and the top of the lead screw 23 are welded to integrally connect the rotor 41 and the lead screw 23; finally, the outer casing 5 is assembled with the wide seat 12, and the lower end of the outer casing 5 and the valve seat are assembled. 12 upper end seals welded together.
- the coil drives the electrically wide rotor 41 to rotate, and the stopper of the rotor 41 drives the slip ring 34 to rotate on the spiral guide portion 33b of the spring guide 33.
- the upper stop portion 33a of the spring guide 33 restricts the slip ring 34 from continuing to rotate upward, thereby acting as an upper stop;
- the spring guide The lower stop portion 33c of the 33 restricts the slip ring 34 from continuing to rotate downward, thereby functioning as a lower stop.
- the engaging limiting surface is not limited to the structural arrangement of the circumferential limiting surface and the axial limiting surface shown in the embodiment, as long as the circumferential direction and the axial direction of the spring guide 33 are fixed and fixed. The needs are all within the scope of the claimed application. The following is a detailed description of each of the two embodiments.
- FIG. 4 is a schematic view of the assembly of the electric valve stop device according to the second embodiment
- FIG. 5 is a front isometric view of the rotor and the outer casing of the electric valve according to the second embodiment.
- This embodiment has the same composition and connection relationship as the first embodiment. As shown in Figures 4 and 5, the difference between the two is that the limit recesses on the plastic nut 32 that cooperate with the limit portions on the spring rails 33 are arranged differently.
- the limit EJ slot of the plastic nut 32 has an "L" shape, that is, a first groove axially disposed on the body of the nut 32 between the step surface and the annular metal connecting piece 31 and the first groove a circumferentially disposed second groove; a circumferential limiting surface and an axial limiting surface are formed on the groove walls of the first groove and the second groove, respectively.
- the circumferential limiting portion 33d of the spring guide 33 and the axial limiting portion 33e The combination also has an "L" shape similar to the first embodiment.
- the tail portion of the spring rail 33 is pulled away from the axis, the positioning portion of the spring rail 33 abuts against the stepped surface of the nut 32, and then the tail portion of the spring rail 33 is released, and the spring rail 33 is acted upon by the elastic force.
- the limit portion returns to the original position, at which time the circumferential limit portion 33d of the spring guide 33 "L” shape and the axial limit portion 33e are just snapped into the recess of the plastic nut 32 of the "L” shape.
- This embodiment preferably adopts the "L” shape, and of course, adopts other shapes such as "P" shape, "V” shape, "U” shape, "C” shape, "6” shape, etc., all of which can achieve the same positioning fixing effect. Changes in the above derivatives are intended to fall within the scope of the claims.
- FIG. 6 the figure is an isometric view of the rotor and housing of the electric valve of the third embodiment before installation.
- This embodiment has the same composition and connection relationship as the first and second embodiments.
- the embodiment is designed on the basis of the first embodiment, that is, the middle portion of the plastic nut 32 of the present invention is not provided with a protruding portion and a limiting groove, and the structure of other parts is the same as that of the first embodiment. the same.
- the spring guide 33 of the present embodiment is only limitedly fixed by an opening 31c of the metal connecting piece 31. After the nut and the stopper member are assembled and welded to the valve seat assembly, the tail portion of the spring rail 33 is completely fitted and restrained to the metal. The opening of the tab 31 and the lower surface of its side are joined.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020127010539A KR101478777B1 (ko) | 2010-10-15 | 2011-07-06 | 전기 밸브 및 그의 정지 장치 |
JP2012538188A JP5510686B2 (ja) | 2010-10-15 | 2011-07-06 | 電動弁及びその止め装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010515238.X | 2010-10-15 | ||
CN201010515238XA CN102454819B (zh) | 2010-10-15 | 2010-10-15 | 电动阀及其止动装置 |
Publications (1)
Publication Number | Publication Date |
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WO2012048594A1 true WO2012048594A1 (zh) | 2012-04-19 |
Family
ID=45937874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2011/076895 WO2012048594A1 (zh) | 2010-10-15 | 2011-07-06 | 电动阀及其止动装置 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP5510686B2 (zh) |
KR (1) | KR101478777B1 (zh) |
CN (1) | CN102454819B (zh) |
WO (1) | WO2012048594A1 (zh) |
Cited By (2)
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EP3112771A1 (en) * | 2015-06-30 | 2017-01-04 | Siemens Schweiz AG | Electric actuator for heating, ventilating and air-conditioning system |
EP3064811A4 (en) * | 2013-10-28 | 2017-05-17 | Gree Electric Appliances, Inc. of Zhuhai | Electronic expansion valve |
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CN102454818A (zh) * | 2010-10-15 | 2012-05-16 | 浙江三花股份有限公司 | 一种电动阀 |
CN103375624A (zh) * | 2012-04-17 | 2013-10-30 | 浙江三花股份有限公司 | 电动阀及其止动装置 |
CN103512288B (zh) | 2012-06-20 | 2016-07-06 | 浙江三花股份有限公司 | 一种电子膨胀阀 |
WO2014023014A1 (zh) * | 2012-08-10 | 2014-02-13 | 浙江三花股份有限公司 | 一种电子膨胀阀 |
CN103575000B (zh) * | 2012-08-10 | 2017-03-01 | 浙江三花智能控制股份有限公司 | 一种电子膨胀阀 |
CN103883749B (zh) * | 2012-12-24 | 2016-03-23 | 艾默生环境优化技术(苏州)有限公司 | 阀针组件和包括该阀针组件的电子膨胀阀 |
CN104696581B (zh) * | 2013-12-05 | 2017-02-01 | 艾默生环境优化技术(苏州)有限公司 | 止位机构和电子膨胀阀 |
CN104913098B (zh) * | 2014-03-13 | 2019-01-22 | 浙江盾安禾田金属有限公司 | 电子膨胀阀止动结构及电子膨胀阀 |
CN104930764B (zh) * | 2014-03-21 | 2018-11-30 | 浙江盾安禾田金属有限公司 | 一种电子膨胀阀 |
CN108980378A (zh) * | 2014-06-17 | 2018-12-11 | 浙江盾安人工环境股份有限公司 | 电子膨胀阀 |
CN104534158A (zh) * | 2015-01-09 | 2015-04-22 | 赵肖运 | 一种膨胀阀 |
CN106246983B (zh) * | 2015-06-11 | 2019-09-17 | 浙江盾安禾田金属有限公司 | 一种电子膨胀阀止动结构 |
JP6521890B2 (ja) * | 2016-03-09 | 2019-05-29 | 株式会社鷺宮製作所 | 電動弁 |
JP2018115743A (ja) * | 2017-01-20 | 2018-07-26 | 株式会社鷺宮製作所 | 電動弁及び冷凍サイクルシステム |
JP7049461B2 (ja) * | 2018-01-31 | 2022-04-06 | 浙江三花制冷集団有限公司 | 電動弁及びその製造方法 |
KR20220020403A (ko) * | 2018-08-17 | 2022-02-18 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | 전자 팽창 밸브 |
JP7244640B2 (ja) * | 2018-12-25 | 2023-03-22 | 浙江盾安人工環境股▲ふん▼有限公司 | 電子膨張弁及びこの電子膨張弁を用いた空調システム |
JP7284054B2 (ja) * | 2019-09-27 | 2023-05-30 | 株式会社鷺宮製作所 | 電動弁及び冷凍サイクルシステム |
DE102020124871A1 (de) * | 2019-12-04 | 2021-06-10 | ECO Holding 1 GmbH | Expansionsventil |
CN212079907U (zh) | 2020-03-30 | 2020-12-04 | 盾安环境技术有限公司 | 螺母组件以及电子膨胀阀 |
JP7141423B2 (ja) * | 2020-04-09 | 2022-09-22 | 株式会社鷺宮製作所 | 電動弁および冷凍サイクルシステム |
JP7389006B2 (ja) | 2020-10-16 | 2023-11-29 | 太平洋工業株式会社 | 回転制限機構、モータ及び電動弁 |
CN214197319U (zh) * | 2020-12-14 | 2021-09-14 | 广东威灵电机制造有限公司 | 螺母、电子膨胀阀及其止动结构和制冷设备 |
CN113685555A (zh) * | 2021-09-29 | 2021-11-23 | 广东威灵电机制造有限公司 | 电子膨胀阀及制冷设备 |
WO2023165331A1 (zh) * | 2022-03-04 | 2023-09-07 | 浙江盾安人工环境股份有限公司 | 螺母组件及电子膨胀阀 |
JP7465510B1 (ja) | 2022-10-28 | 2024-04-11 | 株式会社二子商事 | 塁ベース構造体 |
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- 2011-07-06 KR KR1020127010539A patent/KR101478777B1/ko active IP Right Review Request
- 2011-07-06 JP JP2012538188A patent/JP5510686B2/ja active Active
- 2011-07-06 WO PCT/CN2011/076895 patent/WO2012048594A1/zh active Application Filing
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EP3064811A4 (en) * | 2013-10-28 | 2017-05-17 | Gree Electric Appliances, Inc. of Zhuhai | Electronic expansion valve |
US10119735B2 (en) | 2013-10-28 | 2018-11-06 | Gree Electric Appliances, Inc. Of Zhuhai | Electronic expansion valve |
EP3112771A1 (en) * | 2015-06-30 | 2017-01-04 | Siemens Schweiz AG | Electric actuator for heating, ventilating and air-conditioning system |
Also Published As
Publication number | Publication date |
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JP2012533718A (ja) | 2012-12-27 |
CN102454819A (zh) | 2012-05-16 |
KR101478777B1 (ko) | 2015-01-02 |
JP5510686B2 (ja) | 2014-06-04 |
CN102454819B (zh) | 2013-03-06 |
KR20120068950A (ko) | 2012-06-27 |
KR101478777B9 (ko) | 2023-12-07 |
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