CN104565475A - Electronic expansion valve - Google Patents

Electronic expansion valve Download PDF

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Publication number
CN104565475A
CN104565475A CN201310483581.4A CN201310483581A CN104565475A CN 104565475 A CN104565475 A CN 104565475A CN 201310483581 A CN201310483581 A CN 201310483581A CN 104565475 A CN104565475 A CN 104565475A
Authority
CN
China
Prior art keywords
joint
contact
expansion valve
stator housing
stator casing
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
CN201310483581.4A
Other languages
Chinese (zh)
Other versions
CN104565475B (en
Inventor
王鑫楠
田鹏
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.)
Zhejiang Dunan Artificial Environment Co Ltd
Original Assignee
Zhejiang Dunan Artificial Environment Co Ltd
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 Zhejiang Dunan Artificial Environment Co Ltd filed Critical Zhejiang Dunan Artificial Environment Co Ltd
Priority to CN201810383220.5A priority Critical patent/CN108626470B/en
Priority to CN201310483581.4A priority patent/CN104565475B/en
Priority to CN201810383676.1A priority patent/CN108730600B/en
Priority to JP2014003524U priority patent/JP3193048U6/en
Publication of CN104565475A publication Critical patent/CN104565475A/en
Application granted granted Critical
Publication of CN104565475B publication Critical patent/CN104565475B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)

Abstract

The invention relates to an electronic expansion valve. The electronic expansion valve comprises a valve body and a coil, wherein the coil comprises a locating plate, a stator housing and an insulating layer coating the outer side of the conductively connected stator housing; the conductively connecting locating plate comprises a first connecting part for conductively connecting the conductively connected stator housing, and a second connecting part for conductively connecting a conductively connected valve body; the conductively connecting first connecting part comprises a contact surface matched with the arc surface shape of the conductively connected stator housing; the conductively connecting contact surface is arc-shaped, and fixedly welded with the conductively connected stator housing. According to the electronic expansion valve disclosed by the invention, the first connecting part is matched with the outer surface of the stator housing in shape, so that the contact surface of the first connecting part can be in tight contact with the stator housing, the contact area between the contact surface and the stator housing can be enlarged, the contact area between the locating plate and the stator housing can be effectively enlarged, and the reliable contact between the locating plate and the stator housing can be ensured; the electronic expansion valve has the characteristics of simple structure and low cost.

Description

Electric expansion valve
Technical field
The present invention relates to field of air conditioning, particularly relate to a kind of electric expansion valve.
Background technique
Chinese patent application CN201110288324.6 discloses a kind of electric expansion valve.Please refer to Fig. 3 and Fig. 3-2 of CN201110288324.6, its buckle is L shape structure, and this buckle comprises the location coordinated with valve body puts down the portion of analysing and insert the insertion plat part in the first positioning groove.Transition part and the integrated component of buckle, wherein, transition part is stick up tongue piece what insert that plat part upper punch swaging becomes.When buckle loads after coil, sticking up tongue piece can overlap with the shell of coil, and meanwhile, buckle coordinates with valve body, thus the grounding function of coil.
Can see from the said structure of CN201110288324.6: stick up tongue piece when the shell with coil overlaps, be actually a facet with the contact of a cambered surface, for linear contact lay, its contact resistance is very large, its structure only ensures the contact with coil by the pretightening force of the punching press angle of flanging, and Long-Time Service exists hidden danger.
Summary of the invention
The object of this invention is to provide the electric expansion valve that a kind of structure is simple, reliability is high.
For solving the problems of the technologies described above, as one aspect of the present invention, providing a kind of electric expansion valve, comprising: valve body; Coil, comprise location piece, stator casing and be wrapped in the isolation layer of conduction connecting stator outer side, conduction connects location piece and comprises the first joint for being connected with conduction connecting stator housings conductive and for being connected valve body and conducting electricity the second joint connected with conducting electricity, conduction connection first joint has the surface of contact with the arc surface form fit of conduction connecting stator shell, it is circular arc that conduction connects surface of contact, and conduction connects surface of contact and is welded and fixed with conduction connecting stator shell.
Further, conduction connection isolation layer has makes a part for conduction connecting stator shell be exposed to outer chamber, and conduction connection first connection part is indoor in conduction connection chamber.
Further, connection first joint that conducts electricity is connected a part with the conduction of conduction connecting stator shell and welds.
Further, conductive connecting circle also comprises the embedding portion being filled in conduction connection chamber indoor.
Further, conduction connection second joint is L shape, and one end of conduction connection second joint is connected the first joint with conduction and connects.
Further, the other end of conduction connection second joint is formed with outstanding contact, conduction connecting terminal is positioned at the side towards conduction connection first joint of conduction connection second joint.
The first joint in the present invention has the shape matched with the outer surface of stator casing, thus, the surface of contact of the first joint and the close contact of stator casing can be made, increase surface of contact therebetween, thus the area of contact that effectively improve between location piece and stator casing, ensure that the reliable contacts of location piece and stator casing, have the advantages that structure is simple, cost is low.
Accompanying drawing explanation
Fig. 1 diagrammatically illustrates the structural representation of the electric expansion valve in the present invention;
Fig. 2 diagrammatically illustrates the structural representation of location piece; And
Fig. 3 diagrammatically illustrates the plan view of Fig. 2.
Reference character in figure: 10, valve body; 20, coil; 21, location piece; 22, stator casing; 23, isolation layer; 24, the first joint; 25, the second joint; 26, embedding portion; 27, contact; 28, stator plate; 30, fixing frame.
Embodiment
Below embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Please refer to Fig. 1 to Fig. 3, the invention provides a kind of electric expansion valve, comprising: valve body 10; Coil 20, the isolation layer 23 comprising location piece 21, stator casing 22 and be wrapped in outside stator casing 22, location piece 21 comprises for conducting electricity the first joint 24 of being connected and for conducting electricity with valve body 10 the second joint 25 be connected with stator casing 22, first joint 24 has the surface of contact with the arc surface form fit of stator casing 22, this surface of contact is circular arc, and this surface of contact and stator casing 22 are welded and fixed.Preferably, this surface of contact is rammed in advance.Obviously, surface of contact also can be other shape, as long as can coordinate with the outer surface of stator casing 22, to guarantee that surface of contact contacts with the intimate of stator casing 22.Preferably, coil 20 also comprises stator plate 28.
The first joint 24 in the present invention has the shape matched with the outer surface of stator casing 22, thus, the surface of contact of the first joint 24 and the close contact of stator casing 22 can be made, increase surface of contact therebetween, thus the area of contact that effectively improve between location piece 21 and stator casing, ensure that the reliable contacts of location piece and stator casing, have the advantages that structure is simple, cost is low.
In a preferred embodiment, more specifically, isolation layer 23 has makes a part for stator casing 22 be exposed to outer chamber, and the first joint 24 is positioned at chamber.Especially, this chamber can be stator casing is carried out injection encapsulated with the process forming this isolation layer 23 in formed.
Preferably, the first joint 24 is fixedly connected with a part for stator casing 22.Such as, the first joint 24 welds with a part for stator casing 22, thus forms a fixed connection.First joint 24 is inserted in this chamber, and after ensureing that location piece and stator casing are in fit-state, the modes such as such as laser bonding can be used, the first joint 24 is welded together with stator casing.
Ground structure shown in background technique is directly exposed in air, Long-Time Service, can get rusty and affect earthing effect in this position.For this reason, preferably, coil 20 also comprises the embedding portion 26 be filled in chamber.Like this, can, after location piece has welded, use the materials such as such as epoxy resin to carry out embedding, thus prevent coil Long-Time Service from producing corrosion.
Preferably, in one embodiment, the second joint 25 is L shape, and one end of the second joint 25 is connected with the first joint 24.Like this, the first joint and the second joint form similar T-shaped linkage structure.By the structure of this L shape, the second joint 25 can extend outward by chamber, and forms bending structure to the direction of valve body, is connected to conduct electricity with valve body.
Preferably, the other end of the second joint 25 is formed with outstanding contact 27, contact 27 is positioned at the side towards the first joint 24 of the second joint 25.Preferably, contact 27 has outstanding sphere.Utilize this contact 27, can be stuck in the positioning hole in fixing frame 30 by contact 27, the conduction of both realizations connects.
Coil in the present invention can make coil inside structure be grounded by location piece, and location piece welds with stator casing, can guarantee period reliability.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (6)

1. an electric expansion valve, comprising:
Valve body (10);
Coil (20), comprise location piece (21), stator casing (22) and be wrapped in the isolation layer (23) outside described stator casing (22), described location piece (21) comprises for conducting electricity the first joint (24) of being connected and for conducting electricity with described valve body (10) the second joint (25) be connected with described stator casing (22)
It is characterized in that,
Described first joint (24) has the surface of contact with the arc surface form fit of described stator casing (22), and described surface of contact is circular arc, and described surface of contact and described stator casing (22) are welded and fixed.
2. electric expansion valve according to claim 1, is characterized in that, described isolation layer (23) has makes a part for described stator casing (22) be exposed to outer chamber, and described first joint (24) is positioned at described chamber.
3. electric expansion valve according to claim 2, is characterized in that, described first joint (24) is welded with a described part for described stator casing (22).
4. electric expansion valve according to claim 2, is characterized in that, described coil (20) also comprises the embedding portion (26) be filled in described chamber.
5. electric expansion valve according to claim 1, is characterized in that, described second joint (25) is L shape, and one end of described second joint (25) is connected with described first joint (24).
6. electric expansion valve according to claim 5, it is characterized in that, the other end of described second joint (25) is formed with outstanding contact (27), and described contact (27) are positioned at the side towards described first joint (24) of described second joint (25).
CN201310483581.4A 2013-10-15 2013-10-15 Electric expansion valve Active CN104565475B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201810383220.5A CN108626470B (en) 2013-10-15 2013-10-15 Electronic expansion valve
CN201310483581.4A CN104565475B (en) 2013-10-15 2013-10-15 Electric expansion valve
CN201810383676.1A CN108730600B (en) 2013-10-15 2013-10-15 Electronic expansion valve
JP2014003524U JP3193048U6 (en) 2014-07-03 Adjustable expansion valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310483581.4A CN104565475B (en) 2013-10-15 2013-10-15 Electric expansion valve

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CN201810383676.1A Division CN108730600B (en) 2013-10-15 2013-10-15 Electronic expansion valve
CN201810383220.5A Division CN108626470B (en) 2013-10-15 2013-10-15 Electronic expansion valve

Publications (2)

Publication Number Publication Date
CN104565475A true CN104565475A (en) 2015-04-29
CN104565475B CN104565475B (en) 2018-11-16

Family

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Family Applications (3)

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CN201810383220.5A Active CN108626470B (en) 2013-10-15 2013-10-15 Electronic expansion valve
CN201310483581.4A Active CN104565475B (en) 2013-10-15 2013-10-15 Electric expansion valve
CN201810383676.1A Active CN108730600B (en) 2013-10-15 2013-10-15 Electronic expansion valve

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Application Number Title Priority Date Filing Date
CN201810383220.5A Active CN108626470B (en) 2013-10-15 2013-10-15 Electronic expansion valve

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201810383676.1A Active CN108730600B (en) 2013-10-15 2013-10-15 Electronic expansion valve

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018177284A1 (en) * 2017-03-28 2018-10-04 浙江三花智能控制股份有限公司 Electronic expansion valve and refrigeration system having same
CN109780301A (en) * 2017-11-15 2019-05-21 浙江盾安机械有限公司 A kind of valve coil and expansion valve
CN110159820A (en) * 2018-02-11 2019-08-23 盾安汽车热管理科技有限公司 A kind of electric expansion valve
CN111765289A (en) * 2019-04-02 2020-10-13 盾安环境技术有限公司 Coil component and electronic expansion valve with same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101799087A (en) * 2010-02-09 2010-08-11 浙江盾安禾田金属有限公司 Coil connecting structure and electronic expansion valve
CN101930821A (en) * 2009-06-25 2010-12-29 浙江三花股份有限公司 Electromagnetic coil device
CN103016821A (en) * 2011-09-26 2013-04-03 浙江三花股份有限公司 Electronic expansion valve
CN203132229U (en) * 2013-02-28 2013-08-14 浙江三花股份有限公司 Control valve
JP2013190028A (en) * 2012-03-14 2013-09-26 Nachi Fujikoshi Corp Solenoid valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2627868B2 (en) * 1994-05-18 1997-07-09 太平洋工業株式会社 Motorized valve
CN102042416B (en) * 2009-10-09 2012-11-21 浙江三花股份有限公司 Electronic expansion valve
CN103307339B (en) * 2012-03-09 2015-06-10 浙江盾安禾田金属有限公司 Positioning and connecting structure for valve body of electronic expansion valve for air conditioner and coil
JP6064114B2 (en) * 2012-03-22 2017-01-25 株式会社テージーケー Expansion valve
CN202674473U (en) * 2012-07-24 2013-01-16 浙江盾安禾田金属有限公司 Positioning connecting structure for valve body and coil of electronic expansion valve of air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101930821A (en) * 2009-06-25 2010-12-29 浙江三花股份有限公司 Electromagnetic coil device
CN101799087A (en) * 2010-02-09 2010-08-11 浙江盾安禾田金属有限公司 Coil connecting structure and electronic expansion valve
CN103016821A (en) * 2011-09-26 2013-04-03 浙江三花股份有限公司 Electronic expansion valve
JP2013190028A (en) * 2012-03-14 2013-09-26 Nachi Fujikoshi Corp Solenoid valve
CN203132229U (en) * 2013-02-28 2013-08-14 浙江三花股份有限公司 Control valve

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018177284A1 (en) * 2017-03-28 2018-10-04 浙江三花智能控制股份有限公司 Electronic expansion valve and refrigeration system having same
CN109780301A (en) * 2017-11-15 2019-05-21 浙江盾安机械有限公司 A kind of valve coil and expansion valve
CN109780301B (en) * 2017-11-15 2022-06-17 浙江盾安机械有限公司 Coil and expansion valve for valve
CN110159820A (en) * 2018-02-11 2019-08-23 盾安汽车热管理科技有限公司 A kind of electric expansion valve
CN110159820B (en) * 2018-02-11 2022-03-25 盾安汽车热管理科技有限公司 Electronic expansion valve
CN111765289A (en) * 2019-04-02 2020-10-13 盾安环境技术有限公司 Coil component and electronic expansion valve with same
CN111765289B (en) * 2019-04-02 2021-12-07 盾安环境技术有限公司 Coil component and electronic expansion valve with same
US12015307B2 (en) 2019-04-02 2024-06-18 Zhejiang Dunan Artificial Environment Co., Ltd. Coil component and electronic expansion valve with coil component

Also Published As

Publication number Publication date
CN108626470A (en) 2018-10-09
CN108626470B (en) 2020-09-08
CN108730600A (en) 2018-11-02
JP3193048U (en) 2014-09-11
CN108730600B (en) 2020-08-04
CN104565475B (en) 2018-11-16

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