CN214307709U - Electronic expansion valve and air conditioning equipment - Google Patents
Electronic expansion valve and air conditioning equipment Download PDFInfo
- Publication number
- CN214307709U CN214307709U CN202023222957.0U CN202023222957U CN214307709U CN 214307709 U CN214307709 U CN 214307709U CN 202023222957 U CN202023222957 U CN 202023222957U CN 214307709 U CN214307709 U CN 214307709U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229920003247 engineering thermoplastic Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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Classifications
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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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
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/042—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves with electric means, e.g. for controlling the motor or a clutch between the valve and the motor
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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
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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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to an electronic expansion valve and air conditioning equipment, electronic expansion valve include rotor, screw rod, first connecting plate and second connecting plate, first connecting plate fixed connection rotor, second connecting plate fixed connection screw rod. The second connecting plate is a metal piece, the first connecting plate is a plastic piece, and the first connecting plate is coated and molded on the outer side of the second connecting plate; the rotor drives the screw rod to rotate through the first connecting plate and the second connecting plate. The utility model provides an electronic expansion valve has solved current first connecting plate and the second connecting plate and has connected the problem firm inadequately.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to an electronic expansion valve and air conditioning equipment.
Background
An electronic expansion valve is a throttling element that controls the flow of refrigerant into a refrigeration unit according to a preset program. The electronic expansion valve as a novel control element becomes an important link of refrigeration system intellectualization, is also an important means and guarantee for really realizing refrigeration system optimization, and is applied to more and more fields.
The electronic expansion valve comprises a screw, a first connecting plate, a second connecting plate and a rotor, wherein the rotor drives the screw to rotate through the first connecting plate and the second connecting plate. However, the connection between the first connecting plate and the second connecting plate is not firm enough, so that the first connecting plate and the second connecting plate are easy to slide relatively.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need for an electronic expansion valve and an air conditioning apparatus, which solve the problem of the prior art that the connection between the first connection plate and the second connection plate is not firm enough.
The utility model provides an electronic expansion valve, this electronic expansion valve include rotor, screw rod, first connecting plate and second connecting plate, first connecting plate fixed connection rotor, second connecting plate fixed connection screw rod. The second connecting plate is a metal piece, the first connecting plate is a plastic piece, and the first connecting plate is coated and molded on the outer side of the second connecting plate; the rotor drives the screw rod to rotate through the first connecting plate and the second connecting plate.
In an embodiment of the present invention, the electronic expansion valve further includes a guiding sheet, the guiding sheet is a plastic member, and the guiding sheet and the first connecting plate are integrally formed. Because the first connecting plate and the guide sheet are of an integrally formed structure. The stability of structure between first connecting plate and the guide piece has been guaranteed to integrated into one piece structure, can evenly disperse external force when the guide piece receives external force to there is not stress concentration and lead to the condition that the guide piece breaks off. Moreover, the first connecting plate and the guide piece are of an integrally formed structure, so that the guide piece and the first connecting plate are not required to be connected together in a welding mode, welding steps are reduced, and no connecting gap exists between the guide piece and the first connecting plate. Therefore, compared with the connection mode of welding the first connecting plate and the guide moving piece, obviously, the connection mode of integrally forming the first connecting plate and the guide moving piece is firmer, and the guide moving piece cannot deviate from the original position relative to the first connecting plate.
In an embodiment of the present invention, the first connecting plate and the guiding plate are injection-molded. The injection molding process is suitable for batch production of parts with complex shapes, and has the advantages of high production speed, high production efficiency and high processing precision. The injection molding structure processed by the injection molding process has the advantages of high precision and low manufacturing cost.
In an embodiment of the present invention, one side of the first connecting plate away from the guiding plate is provided with an embedding portion, the embedding portion has an embedding groove towards one side deviating from the first connecting plate, and the second connecting plate is embedded in the embedding groove. The second connecting plate is embedded in the embedding groove of the first connecting plate, so that the first connecting plate and the second connecting plate have larger contact area, and at the moment, the first connecting plate and the second connecting plate are connected tightly, thereby being beneficial to the stable structure of the electronic expansion valve.
In an embodiment of the present invention, the inner wall of the scarf joint groove is provided with a protrusion, the outer peripheral side of the second connecting plate is provided with a groove corresponding to the protrusion, and the protrusion is connected to the groove to connect the second connecting plate to the first connecting plate. The inner wall of the scarf joint groove is provided with a bulge, the peripheral side of the second connecting plate is provided with a groove corresponding to the bulge, and the bulge is clamped in the groove. The contact area of the first connecting plate and the second connecting plate is further enlarged, so that the first connecting plate and the second connecting plate are connected more tightly. And the existence of the bulge and the groove enables the second connecting plate to be incapable of rotating relative to the first connecting plate, and the structural stability of the electronic expansion valve is further improved.
In an embodiment of the present invention, the number of the grooves is plural, and the plurality of grooves are uniformly distributed along the circumferential direction of the second connecting plate. The quantity of recess sets up to a plurality ofly, can make the connection of first connecting plate and second connecting plate more firm, and a plurality of recesses along the circumference evenly distributed of second connecting plate have the manufacturing that does benefit to the recess.
In an embodiment of the present invention, the first connecting plate and the second connecting plate are both disc-shaped, the center of the circle of the second connecting plate is provided with a first through hole, and the center of the circle of the first connecting plate is provided with a second through hole; one end of the screw rod sequentially penetrates through the second through hole and the first through hole, the screw rod is in clearance fit with the second through hole, and the screw rod is connected with the second connecting plate in a welding mode. So set up, when the rotor drove first connecting plate and second connecting plate and rotates, can make the screw rod be located rotation center department, prevent that the screw rod from producing off-centre at the rotation in-process, and influence opening and closing of electronic expansion valve.
In an embodiment of the present invention, the outer contour of the cross section of the first connecting plate is non-circular. So set up, be favorable to further preventing that first connecting plate and rotor from producing relative rotation.
In an embodiment of the present invention, the outer contour of the cross section of the second connecting plate is non-circular. So set up, be favorable to further preventing first connecting plate and second connecting plate to produce relative rotation.
The utility model also provides an air conditioning equipment, including above arbitrary one embodiment electronic expansion valve.
The utility model provides an electronic expansion valve and air conditioning equipment, first connecting plate and second connecting plate detachable processing have improved the processing flexibility of first connecting plate and second connecting plate greatly. And, first connecting plate coating modeling has also guaranteed that the second connecting plate can firmly be connected in first connecting plate in the outside of second connecting plate for the structure of connecting plate subassembly is more stable. That is, the utility model provides an electronic expansion valve has solved current first connecting plate and the second connecting plate and has connected not firm enough problem.
Drawings
Fig. 1 is a cross-sectional view of an electronic expansion valve according to an embodiment of the present invention;
fig. 2 is a schematic view of a connection structure between a connection plate assembly and a guide plate according to an embodiment of the present invention;
fig. 3 is a schematic view of a connection structure between the first connection plate and the driving plate according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second connecting plate according to an embodiment of the present invention.
Reference numerals: 1. a valve body; 11. a valve cavity; 12. a valve port; 2. a first connecting pipe; 3. a second connecting pipe; 4. a rotor; 5. a connection plate assembly; 51. a first connecting plate; 511. a caulking part; 512. embedding grooves; 513. a protrusion; 514. a second through hole; 52. a second connecting plate; 521. a groove; 522. a first through hole; 6. a screw; 7. a nut sleeve; 8. a limiting member; 81. a guide piece; 82. a limiting spring; 83. a stop ring; 9. a valve head.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The utility model provides an electronic expansion valve, electronic expansion valve use in refrigerating system, realize the effect of throttle step-down, and refrigerating system can be for example vehicle air conditioner, cold chain system, commercial air conditioning system etc.. Of course, in other embodiments, the electronic expansion valve may be applied to other systems.
Referring to fig. 1, the present invention provides an electronic expansion valve, which includes a valve body 1, a rotor 4, and a stator assembly (not shown), wherein the valve body 1 is connected to a first connecting pipe 2 and a second connecting pipe 3. In this embodiment, the electronic expansion valve is a two-way valve, and when the first connection pipe 2 is an inlet pipe, the medium enters the electronic expansion valve through the first connection pipe 2 and flows out through the second connection pipe 3; when the second connecting pipe 3 is an inlet pipe, the medium enters the inside of the electronic expansion valve through the second connecting pipe 3 and then flows out through the first connecting pipe 2. Of course, in other embodiments, the electronic expansion valve may also be a one-way valve, which is not limited by the present invention.
A valve cavity 11 is arranged in the valve body 1, the rotor 4 is arranged in the valve cavity 11, and the stator component is arranged outside the valve cavity 11. The stator assembly generates a magnetic field after being electrified, and the rotor 4 made of magnetic materials rotates under the driving of the magnetic field. The electronic expansion valve further comprises a connecting plate component 5, a screw rod 6 and a nut sleeve 7, the screw rod 6 is fixedly connected with the rotor 4 through the connecting plate component 5, and the rotation of the rotor 4 drives the screw rod 6 to rotate. The nut sleeve 7 is fixedly arranged on the valve body 1, and a nut-feed screw is formed between the screw rod 6 and the nut sleeve 7, so that the screw rod 6 can generate telescopic motion relative to the axial direction of the valve body 1 by the rotation of the screw rod 6 relative to the nut sleeve 7. Thereby realizing the working process that the stator component drives the rotor 4 to move and the rotor 4 drives the screw 6 to move.
The electronic expansion valve further includes a limiting member 8, the limiting member 8 is used for limiting the rotation angle of the rotor 4, and the limiting member 8 includes a guide plate 81, a limiting spring 82, a stop ring 83 and a stop member (not shown). The limiting spring 82 is sleeved on the outer side of the nut seat, the stop ring is sleeved on the limiting spring 82, and the stop ring 83 can perform spiral motion along the limiting spring 82. One end of the guide plate 81 is connected to the connecting plate assembly 5, the rotor 4 can drive the guide plate 81 to synchronously rotate through the connecting plate assembly 5, and the guide plate 81 can drive the stop ring 83 to perform a spiral motion along the limit spring 82 during the rotation process to control the opening degree of the electronic expansion valve. The stoppers are provided at both ends of the spacing spring 82, and limit the maximum opening degree of the electronic expansion valve by preventing the stopper ring 83 from moving on the spacing spring 82.
The electronic expansion valve further comprises a valve head 9, and the valve head 9 is connected to one end of the screw rod 6 far away from the connecting plate component 5. The screw 6 can drive the valve head 9 to move by the telescopic motion relative to the axial direction of the valve body 1, and the valve head 9 and a valve port 12 arranged on the valve body 1 carry out relative motion under the drive of the screw 6.
As shown in fig. 1-4, the connection plate assembly 5 of the electronic expansion valve of the present invention includes a first connection plate 51 and a second connection plate 52, the first connection plate 51 is fixedly connected to the rotor 4, and the second connection plate 52 is fixedly connected to the screw rod 6. The second connecting plate 52 is a metal piece, the first connecting plate 51 is a plastic piece, and the first connecting plate 51 is formed on the outer side of the second connecting plate 52 in an cladding mode. The rotor 4 drives the screw 6 to rotate through the first connecting plate 51 and the second connecting plate 52.
Thus, the first connecting plate 51 and the second connecting plate 52 can be separately processed, and the processing flexibility of the first connecting plate 51 and the second connecting plate 52 is greatly improved. Moreover, the first connecting plate 51 is overmolded on the outer side of the second connecting plate 52, so that the second connecting plate 52 can be firmly connected to the first connecting plate 51, and the structure of the connecting plate assembly 5 is more stable. That is, the utility model provides an electronic expansion valve has solved current first connecting plate 51 and second connecting plate 52 and has connected the not firm problem inadequately.
In one embodiment, as shown in fig. 1-3, the electronic expansion valve further includes a guide plate 81, the guide plate 81 is a plastic member, and the guide plate 81 and the first connection plate 51 are integrally formed. The stability of the structure between the first connecting plate 51 and the guide moving piece 81 is ensured by the integrally formed structure, and the guide moving piece 81 can uniformly disperse external force when the external force is applied, so that the condition that the guide moving piece 81 is broken due to stress concentration does not exist. Moreover, since the first connecting plate 51 and the guide piece 81 are integrally formed, the guide piece 81 and the first connecting plate 51 do not need to be connected together by welding, that is, the welding steps are reduced, and no connection gap exists between the guide piece 81 and the first connecting plate 51. Therefore, compared to the connection manner in which the first connection plate 51 and the guide piece 81 are welded, it is obvious that the connection manner in which the first connection plate 51 and the guide piece 81 are integrally formed is more secure, and the guide piece 81 does not deviate from the original position with respect to the first connection plate 51.
Further, the first connecting plate 51 and the guide plate 81 are injection molded. The injection molding structure refers to a part processed by adopting the existing injection molding process, and the injection molding process is a molding method combining injection and molding. And at a certain temperature, stirring the completely molten plastic material by using a stirring device, injecting the plastic material into the inner cavity of the mold by using a pressure device, and cooling and solidifying the plastic material in the inner cavity of the mold to obtain the injection molding structure. The injection molding process is suitable for batch production of parts with complex shapes, and has the advantages of high production speed, high production efficiency and high processing precision. The injection molding structure processed by the injection molding process has the advantages of high precision and low manufacturing cost.
Preferably, the first connecting plate 51 is made of engineering thermoplastic, and the driving piece 81 is made of engineering thermoplastic. Engineering thermoplastics are a class of plastics that have good heat resistance, cold resistance, machinability, structural stability, electrical insulation, chemical resistance, and adhesion. Therefore, the first connecting plate 51 and the guide piece 81 are made of thermoplastic engineering plastic, so that the first connecting plate 51 and the guide piece 81 can be more easily machined and formed, and the connection between the first connecting plate 51 and the guide piece 81 is more firm.
In one embodiment, as shown in fig. 2 to 4, the first connecting plate 51 is provided with an engaging portion 511 at a side away from the guide piece 81, the engaging portion 511 is provided with an engaging groove 512 at a side facing away from the first connecting plate 51, and the second connecting plate 52 is engaged in the engaging groove 512. Therefore, the second connecting plate 52 can be processed first, and then the second connecting plate 52 is arranged in the mold, so that the second connecting plate 52 is embedded in the first connecting plate 51 while the first connecting plate 51 is processed in an injection molding manner. However, the first link plate 51 and the second link plate 52 may be separately formed, and the second link plate 52 may be press-fitted into the fitting groove 512 of the first link plate 51. However, no matter which way the first connecting plate 51 and the second connecting plate 52 are processed, the second connecting plate 52 is embedded in the embedding groove 512 of the first connecting plate 51, so that the first connecting plate 51 and the second connecting plate 52 have a larger contact area, and at this time, the first connecting plate 51 and the second connecting plate 52 are connected more tightly, which is beneficial to the structural stability of the electronic expansion valve.
Further, as shown in fig. 2 to 4, the inner wall of the engagement groove 512 is provided with a protrusion 513, the outer peripheral side of the second connection plate 52 is provided with a groove 521 corresponding to the protrusion 513, and the protrusion 513 is engaged with the groove 521, so that the second connection plate 52 is engaged with the first connection plate 51. By providing the projection 513 on the inner wall of the engagement groove 512, the outer peripheral side of the second link plate 52 is provided with a recess 521 corresponding to the projection 513, and the projection 513 is engaged in the recess 521. The contact area of the first connecting plate 51 and the second connecting plate 52 is further enlarged, so that the first connecting plate 51 and the second connecting plate 52 are connected more tightly. Moreover, the existence of the protrusion 513 and the groove 521 prevents the second connecting plate 52 from rotating relative to the first connecting plate 51, thereby further improving the structural stability of the electronic expansion valve.
Further, as shown in fig. 4, the number of the grooves 521 is plural, and the plural grooves 521 are uniformly distributed along the circumferential direction of the second connecting plate 52. The number of the grooves 521 is set to be a plurality, so that the connection between the first connecting plate 51 and the second connecting plate 52 is firmer, and the plurality of grooves 521 are uniformly distributed along the circumferential direction of the second connecting plate 52, so that the processing and the manufacturing of the grooves 521 are facilitated.
In an embodiment, as shown in fig. 1 to 4, the first connecting plate 51 and the second connecting plate 52 are both disc-shaped, a first through hole 522 is disposed at a center of the second connecting plate 52, and a second through hole 514 is disposed at a center of the first connecting plate 51. One end of the screw rod 6 sequentially penetrates through the second through hole 514 and the first through hole 522, the screw rod 6 is in clearance fit with the second through hole 514, and the screw rod 6 is connected with the second connecting plate 52 in a welding mode. With such an arrangement, when the rotor 4 drives the first connecting plate 51 and the second connecting plate 52 to rotate, the screw 6 can be located at the rotation center, and the screw 6 is prevented from generating eccentricity during the rotation process, so as to prevent the opening and closing of the electronic expansion valve from being affected.
In one embodiment, the first connecting plate 51 has a non-circular cross-sectional outer profile. This arrangement is advantageous to further prevent the first connecting plate 51 from rotating relative to the rotor 4.
In one embodiment, the outer profile of the cross-section of the second connecting plate 52 is non-circular. This arrangement is advantageous for further preventing the first connecting plate 51 and the second connecting plate 52 from rotating relative to each other.
The utility model also provides an air conditioning equipment, including above arbitrary one embodiment electronic expansion valve.
The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.
Claims (10)
1. An electronic expansion valve is characterized by comprising a rotor (4), a screw (6), a first connecting plate (51) and a second connecting plate (52), wherein the first connecting plate (51) is fixedly connected with the rotor (4), and the second connecting plate (52) is fixedly connected with the screw (6);
the second connecting plate (52) is a metal piece, the first connecting plate (51) is a plastic piece, and the first connecting plate (51) is formed on the outer side of the second connecting plate (52) in an cladding mode; the rotor (4) drives the screw rod (6) to rotate through the first connecting plate (51) and the second connecting plate (52).
2. An electronic expansion valve according to claim 1, further comprising a guide plate (81), wherein the guide plate (81) is a plastic member, and wherein the guide plate (81) is integrally formed with the first connecting plate (51).
3. An electronic expansion valve according to claim 2, wherein the first connecting plate (51) and the guide plate (81) are injection molded structures.
4. The electronic expansion valve according to claim 2, wherein a side of the first connecting plate (51) away from the guide piece (81) is provided with an engagement portion (511), a side of the engagement portion (511) facing away from the first connecting plate (51) is provided with an engagement groove (512), and the second connecting plate (52) is engaged in the engagement groove (512).
5. The electronic expansion valve according to claim 4, wherein the inner wall of the scarf groove (512) is provided with a protrusion (513), the outer peripheral side of the second connecting plate (52) is provided with a groove (521) corresponding to the protrusion (513), and the protrusion (513) is snapped in the groove (521), so that the second connecting plate (52) is snapped in the first connecting plate (51).
6. The electronic expansion valve according to claim 5, wherein the number of the grooves (521) is plural, and the plural grooves (521) are uniformly distributed along the circumferential direction of the second connecting plate (52).
7. An electronic expansion valve according to claim 1, wherein the first connecting plate (51) and the second connecting plate (52) are each disc-shaped, and a first through hole (522) is provided at a center of the second connecting plate (52), and a second through hole (514) is provided at a center of the first connecting plate (51); one end of the screw rod (6) sequentially penetrates through the second through hole (514) and the first through hole (522), the screw rod (6) is in clearance fit with the second through hole (514), and the screw rod (6) is connected with the second connecting plate (52) in a welded mode.
8. An electronic expansion valve according to claim 1, wherein the outer contour of the cross-section of the first connecting plate (51) is non-circular.
9. An electronic expansion valve according to claim 1, wherein the outer contour of the cross-section of the second connection plate (52) is non-circular.
10. An air conditioning apparatus, characterized by comprising an electronic expansion valve according to any one of claims 1 to 9.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023222957.0U CN214307709U (en) | 2020-12-28 | 2020-12-28 | Electronic expansion valve and air conditioning equipment |
| KR1020237012466A KR20230053725A (en) | 2020-12-28 | 2021-10-20 | Electronic expansion valves and air conditioners |
| JP2023515027A JP2023546312A (en) | 2020-12-28 | 2021-10-20 | Electronic expansion valves and air conditioning equipment |
| PCT/CN2021/124979 WO2022142607A1 (en) | 2020-12-28 | 2021-10-20 | Electronic expansion valve and air conditioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023222957.0U CN214307709U (en) | 2020-12-28 | 2020-12-28 | Electronic expansion valve and air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214307709U true CN214307709U (en) | 2021-09-28 |
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ID=77862962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023222957.0U Active CN214307709U (en) | 2020-12-28 | 2020-12-28 | Electronic expansion valve and air conditioning equipment |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2023546312A (en) |
| KR (1) | KR20230053725A (en) |
| CN (1) | CN214307709U (en) |
| WO (1) | WO2022142607A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010117013A (en) * | 2008-11-14 | 2010-05-27 | Fuji Koki Corp | Motor-operated valve |
| CN101956830B (en) * | 2009-07-17 | 2013-06-12 | 浙江三花股份有限公司 | Electronic expansion valve |
| JP6539479B2 (en) * | 2015-04-09 | 2019-07-03 | 株式会社不二工機 | Motor-operated valve and heat exchanger using the same |
| CN106763989B (en) * | 2015-11-25 | 2019-11-12 | 浙江盾安人工环境股份有限公司 | Electric expansion valve |
| CN206694632U (en) * | 2017-01-12 | 2017-12-01 | 诸暨市亿霸电子阀门有限公司 | A kind of electric expansion valve of flow control accuracy |
| CN109708343B (en) * | 2017-10-25 | 2021-12-07 | 浙江盾安禾田金属有限公司 | Electronic expansion valve |
| JP6909740B2 (en) * | 2018-01-31 | 2021-07-28 | 株式会社鷺宮製作所 | Electric valve and refrigeration cycle system |
| CN110836271A (en) * | 2018-08-17 | 2020-02-25 | 浙江盾安禾田金属有限公司 | Electronic expansion valve and air conditioning system using same |
| JP6851642B2 (en) * | 2019-06-10 | 2021-03-31 | 株式会社不二工機 | Electric valve and heat exchanger using it |
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2020
- 2020-12-28 CN CN202023222957.0U patent/CN214307709U/en active Active
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2021
- 2021-10-20 JP JP2023515027A patent/JP2023546312A/en active Pending
- 2021-10-20 WO PCT/CN2021/124979 patent/WO2022142607A1/en active Application Filing
- 2021-10-20 KR KR1020237012466A patent/KR20230053725A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022142607A1 (en) | 2022-07-07 |
| JP2023546312A (en) | 2023-11-02 |
| KR20230053725A (en) | 2023-04-21 |
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