CN107830223B - Valve body and coil positioning structure of electronic expansion valve - Google Patents
Valve body and coil positioning structure of electronic expansion valve Download PDFInfo
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- CN107830223B CN107830223B CN201711268373.7A CN201711268373A CN107830223B CN 107830223 B CN107830223 B CN 107830223B CN 201711268373 A CN201711268373 A CN 201711268373A CN 107830223 B CN107830223 B CN 107830223B
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- coil
- valve body
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- fixed
- electronic expansion
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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
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- 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)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model provides an electronic expansion valve body and coil location structure, includes the coil of valve body dustcoat and step motor, the fixed welding of valve body dustcoat is on the disk seat of electronic expansion valve, the coil suit be fixed in the valve body dustcoat on, the bottom of valve body dustcoat form one section horizontal turn-ups and be located the below of coil bottom, a plurality of bayonet sockets that have the opening have been seted up on the horizontal turn-ups, the coil bottom correspond horizontal turn-ups department be equipped with the screens piece, be equipped with on the screens piece with bayonet socket complex location portion. According to the invention, the coil is fixed on the bayonet of the horizontal flanging formed on the valve body housing, the coil is axially supported through the horizontal flanging, the coil can be prevented from rotating circumferentially through the bayonet of the horizontal flanging, and meanwhile, the upper flat plate part of the clamping piece can prevent the coil from slipping upwards, so that the circumferential positioning and the axial positioning of the coil are realized.
Description
Technical Field
The invention belongs to the technical field of valve bodies, and particularly relates to an electronic expansion valve body and coil positioning structure.
Background
The patent publication No. CN202674473U discloses a valve body and coil positioning connection structure of an electronic expansion valve for an air conditioner, which comprises a valve body and a coil, wherein a positioning sheet is arranged on the valve body, a positioning card is arranged on the coil, the positioning sheet consists of a valve body positioning part and a limiting part, wherein the valve body positioning part is fixed at the lower end or the side end of the valve body, and a hole or a groove is formed in the limiting part; the locating clip is composed of a coil locating part and a connecting part, wherein the coil locating part is fixed on the coil, the connecting part is matched with a hole or a groove on the limiting part, and bending preventing advance and retreat is formed on the connecting part. The locating card is inserted into a hole or a groove on the locating sheet to be located and connected through deformation at the bending position. However, the positioning structure has a plurality of parts, the volume of the positioning structure occupies larger space of the electronic expansion valve, the miniaturized application of the electronic expansion valve on an air conditioner is not facilitated, and the production cost of the positioning sheet of the existing structure is higher.
Disclosure of Invention
Aiming at the problems existing in the background technology, the invention aims to provide the valve body and coil positioning structure of the electronic expansion valve, which can realize miniaturization, has good positioning effect and is relatively low in cost.
For this purpose, the invention adopts the following technical scheme: the utility model provides an electronic expansion valve body and coil location structure, includes the coil of valve body dustcoat and step motor, the fixed welding of valve body dustcoat is on the disk seat of electronic expansion valve, the coil suit be fixed in the valve body dustcoat on, characterized by, the bottom of valve body dustcoat form one section horizontal turn-ups and be located the below of coil bottom, offered a plurality of bayonet sockets that have the opening on the horizontal turn-ups, the coil bottom correspond horizontal turn-ups department be equipped with the screens piece, be equipped with on the screens piece with bayonet socket complex location portion.
The invention also comprises the following technical characteristics as supplement and improvement of the technical scheme.
The clamping piece comprises a horizontal part and a base part, the horizontal part and the base part are mutually parallel and are connected to form a whole through a transition section with an arc-shaped surface, the coil is packaged to form a whole through an encapsulation layer, the bottom of the encapsulation layer is downwards hung to form a plurality of cylindrical protrusions, round holes matched with the cylindrical protrusions are formed in the base part, and the clamping piece is fixed on the cylindrical protrusions of the encapsulation layer through the round holes, so that the clamping piece is fixed on the coil.
The bottom of the wrapping layer is also provided with a plurality of bosses which are matched with the horizontal flanging in a downward overhanging way, and one boss is in conflict with the top surface of the horizontal flanging, so that the stability of the coil is improved, the coincidence of the center of the rotor of the stepping motor and the center of the effective height of the coil can be ensured, and the driving moment of the rotor and the coil is improved.
When the rotor of the stepping motor is 20 poles, the angle between the two bayonets is 36 degrees; when the rotor of the stepping motor is 24 poles, the angle between the two bayonets is 30 degrees. The consistency of valve opening pulses of the valve body can be ensured.
The valve body outer cover is fixed on the valve seat through penetrating welding seams, and the penetrating welding seams are formed by penetrating laser from the outer periphery of the valve body outer cover to the inner side of the outer periphery of the outer cover to form welding seams between the outer cover and the valve seat.
The encapsulation layer, the cylindrical boss and the boss are integrally injection molded.
The clamping piece is fixed on the cylindrical bulge of the encapsulation layer through welding, the boss plastic is melted, a structure similar to a mushroom graph is formed, and the fixing piece is fixed on the boss. The plastic welding mode is adopted for fixing, the process is simple, and the fixing is reliable.
The invention can achieve the following beneficial effects: according to the invention, the coil is fixed on the bayonet of the horizontal flanging formed on the valve body housing, the coil is axially supported through the horizontal flanging, the coil can be prevented from rotating circumferentially through the bayonet of the horizontal flanging, and meanwhile, the upper flat plate part of the clamping piece can prevent the coil from slipping upwards, so that the circumferential positioning and the axial positioning of the coil are realized. The horizontal flanging and the valve body housing are integrally formed, the structure is simple, the space occupied by the positioning structure on the valve body is reduced, no additional parts are needed, no additional coil clamping part fixing process is needed, the process is simple, and the cost is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the valve housing structure of the present invention.
Fig. 3 is an enlarged schematic view of a portion of fig. 1 according to the present invention.
Fig. 4 is a schematic perspective view of the present invention.
Fig. 5 is a schematic view of the bottom structure of the present invention.
Fig. 6 is a schematic view of a structure of a detent plate according to the present invention.
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1-6, the invention comprises a valve body housing 1 and a coil 2 of a stepping motor, the valve body housing 1 is fixedly welded on a valve seat 3 of an electronic expansion valve, the coil 2 is sleeved and fixed on the valve body housing 1, a section of horizontal flanging 6 is formed at the bottom of the valve body housing 1 and positioned below the bottom of the coil 2, a plurality of bayonets 7 with openings are formed on the horizontal flanging 6, a clamping piece 4 is arranged at the position of the bottom of the coil 2 corresponding to the horizontal flanging 6, the clamping piece 4 comprises a horizontal part 11 and a base part 12, the horizontal part 11 and the base part 12 are mutually parallel and are connected through a transition section 13 with a section of arc surface to form a whole, a positioning part 9 matched with the bayonets 7 is arranged on the horizontal part 11, the coil 2 is packaged and formed into a whole through an encapsulation layer 5, a plurality of cylindrical bulges 10 are formed by downwardly overhanging the bottom of the encapsulation layer 5, and round holes matched with the cylindrical bulges 10 are formed on the base part 12, and the clamping piece 4 is fixed on the cylindrical bulges 10 of the encapsulation layer 5 through the round holes, so that the clamping piece is fixed on the coil.
In addition, the bottom of the encapsulation layer 5 is also provided with a plurality of bosses 8 which are matched with the horizontal flanging 6 in a downwardly overhanging manner, wherein one boss is in conflict with the top surface of the horizontal flanging 6, so that the stability of the coil is improved, the coincidence between the center of the rotor of the stepping motor and the center of the effective height of the coil can be ensured, and the driving moment of the rotor and the coil is improved. Preferably, the envelope layer 5 is injection molded integrally with the cylindrical protrusion 10 and the boss 8. The clamping piece 4 is fixed on the cylindrical bulge 10 of the encapsulation layer 5 by welding, the boss plastic is melted, a structure similar to a mushroom graph is formed, and the fixing piece is fixed on the boss. The plastic welding mode is adopted for fixing, the process is simple, and the fixing is reliable.
Further preferably, when the rotor of the stepper motor is 20 poles, the angle between the two bayonets is 36 degrees; when the rotor of the stepping motor is 24 poles, the angle between the two bayonets is 30 degrees. The consistency of valve opening pulses of the valve body can be ensured.
Preferably, the valve body housing 1 is fixed to the valve seat by welding a penetration weld, which is a weld formed between the housing and the valve seat by injecting laser from within the outer periphery of the valve body housing to penetrate the outer periphery of the housing.
Claims (3)
1. The utility model provides an electronic expansion valve body and coil location structure, includes valve body dustcoat (1) and step motor's coil (2), and valve body dustcoat (1) fixed welding is on electronic expansion valve's disk seat (3), coil (2) suit be fixed in valve body dustcoat (1), its characterized in that: a section of horizontal flanging (6) is formed at the bottom of the valve body housing (1) and is positioned below the bottom of the coil (2), a plurality of bayonets (7) with openings are formed in the horizontal flanging (6), a clamping piece (4) is arranged at the position, corresponding to the horizontal flanging (6), of the bottom of the coil (2), and a positioning part (9) matched with the bayonets (7) is arranged on the clamping piece (4);
the clamping piece (4) comprises a horizontal part (11) and a base part (12), the horizontal part (11) and the base part (12) are mutually parallel and are connected to form a whole through a transition section (13) with an arc surface, the positioning part (9) is arranged on the horizontal part (11), the coil (2) is packaged to form a whole through the packaging layer (5), the bottom of the packaging layer (5) is downwards overhanging to form a plurality of cylindrical bulges (10), the base part (12) is provided with round holes matched with the cylindrical bulges (10), and the clamping piece (4) is fixed on the cylindrical bulges (10) of the packaging layer (5) through the round holes; the bottom of the wrapping layer (5) is also provided with a plurality of bosses (8) which are matched with the horizontal flanging (6) in a downward overhanging way; the encapsulation layer (5) is integrally injection molded with the cylindrical boss (10) and the boss (8).
2. The electronic expansion valve body and coil positioning structure of claim 1, wherein: the valve body housing (1) is fixed on the valve seat (3) through penetration welding.
3. The electronic expansion valve body and coil positioning structure of claim 1, wherein: the clamping piece (4) is fixed on the cylindrical bulge (10) of the encapsulation layer (5) through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711268373.7A CN107830223B (en) | 2017-12-05 | 2017-12-05 | Valve body and coil positioning structure of electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711268373.7A CN107830223B (en) | 2017-12-05 | 2017-12-05 | Valve body and coil positioning structure of electronic expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107830223A CN107830223A (en) | 2018-03-23 |
| CN107830223B true CN107830223B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711268373.7A Active CN107830223B (en) | 2017-12-05 | 2017-12-05 | Valve body and coil positioning structure of electronic expansion valve |
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| Country | Link |
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| CN (1) | CN107830223B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219518B (en) * | 2018-11-27 | 2022-03-08 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004239428A (en) * | 2003-01-17 | 2004-08-26 | Saginomiya Seisakusho Inc | Motor operated valve |
| CN101956854A (en) * | 2009-07-15 | 2011-01-26 | 浙江三花股份有限公司 | Electric control valve and valve body device thereof |
| CN102142727A (en) * | 2010-01-29 | 2011-08-03 | 浙江三花股份有限公司 | Solenoid coil, manufacture method thereof and stepping motor |
| CN104455637A (en) * | 2013-09-13 | 2015-03-25 | 株式会社不二工机 | Stator unit |
| JP2016220403A (en) * | 2015-05-20 | 2016-12-22 | 株式会社不二工機 | Stator unit and motor-operated valve including the same |
-
2017
- 2017-12-05 CN CN201711268373.7A patent/CN107830223B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004239428A (en) * | 2003-01-17 | 2004-08-26 | Saginomiya Seisakusho Inc | Motor operated valve |
| CN101956854A (en) * | 2009-07-15 | 2011-01-26 | 浙江三花股份有限公司 | Electric control valve and valve body device thereof |
| CN102142727A (en) * | 2010-01-29 | 2011-08-03 | 浙江三花股份有限公司 | Solenoid coil, manufacture method thereof and stepping motor |
| CN104455637A (en) * | 2013-09-13 | 2015-03-25 | 株式会社不二工机 | Stator unit |
| JP2016220403A (en) * | 2015-05-20 | 2016-12-22 | 株式会社不二工機 | Stator unit and motor-operated valve including the same |
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| Publication number | Publication date |
|---|---|
| CN107830223A (en) | 2018-03-23 |
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