CN212251209U - Electronic expansion valve rotor assembly - Google Patents
Electronic expansion valve rotor assembly Download PDFInfo
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- CN212251209U CN212251209U CN202020955109.1U CN202020955109U CN212251209U CN 212251209 U CN212251209 U CN 212251209U CN 202020955109 U CN202020955109 U CN 202020955109U CN 212251209 U CN212251209 U CN 212251209U
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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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Abstract
A rotor assembly of an electronic expansion valve comprises a shell, a positioning shaft, a supporting seat, a stop rod, a magnetic ring, a valve needle spring, a spring supporting seat, a guide nut, a seat ring, a side connecting pipe, a direct pipe, a guide plate, a valve needle, a valve seat, a screw rod, a welding ring, a connecting sleeve, a guide rail shaft and a sliding ring. The supporting seat is an injection molding piece, is integrated with the positioning shaft and the stop rod in an injection molding way, and is locked with the shell in a riveting pit; the guide nut is an injection molding part which is integrated with the welding ring in an injection molding way, and the guide rail shaft is an injection molding part and replaces the traditional spring guide rail and the guide rail shaft; a guide plate is additionally arranged to balance the energy carried by the refrigerant, and the noise generated by valve needle vibration and refrigerant bubble breakage is reduced; the comprehensive performance of the expansion valve is better improved by optimizing the structure of part of parts, changing the material and adjusting the process.
Description
Technical Field
The utility model relates to an electronic expansion valve rotor assembly.
Background
Compared with the traditional electronic expansion valve, the existing electronic expansion valve benefits from the rise of scientific and technological innovation, various new products come up, but the expansion valve product with comprehensively improved comprehensive performance is the phoenix hair unicorn, so that the establishment of the electronic expansion valve which is only occupied by the turtle is still a long-standing wish of the industry.
Disclosure of Invention
The utility model discloses many of lottery have optimized the structure of part spare part, have made the change to the material of some parts, have carried out appropriate adjustment to the preparation technology of some parts to make the comprehensive properties of expansion valve have had better promotion. The utility model discloses a realize like this, it comprises shell, location axle, supporting seat, stop lever, magnetic ring, needle spring, spring support, guide nut, seat circle, side takeover, direct pipe, guide plate, needle, disk seat, lead screw, welding ring, adapter sleeve, guide rail axle, sliding ring. The shell is a cylindrical thin-wall part, the cambered surface at the bottom end of the cylinder is matched with the supporting seat, and the supporting seat is locked by riveting a pit through the shell when being assembled in place. The positioning shaft is a stainless steel smooth round bar, is an injection molding insert of the supporting seat, and is scratched and roughened at the embedding part to increase the bonding firmness. The supporting seat is formed by plastic injection molding, the overall appearance is a cylinder with a cambered surface at the upper end, the cambered surface is matched with the cambered surface at the bottom end of the inner side of the shell of the rotor, the overall bottom end of the supporting seat is a plane and is provided with a through groove, a positioning shaft insert is arranged at the center of the vertical plane, a stop rod insert is arranged beside a positioning shaft, and a flange for reinforcing the stop rod is arranged around the root of the stop rod. The stop rod is a stainless steel rectangular strip material and is an injection molding insert of the support seat. The guide nut is formed by plastic injection molding, the appearance is generally in the shape of a step of a round table, a stainless steel welding ring insert welded with the valve seat is arranged at the big end of the outer circle, a rib plate is axially arranged below the guide nut, a stepped hole is formed in the center of the guide nut, the big end is a smooth hole, and an internal thread meshed with a screw thread of the screw rod is arranged at the small end.
The valve seat appearance be the circular step form, the shoulder hole is established at the center, the external diameter of big aperture end is equipped with the seat circle, the guide nut is installed to the inner chamber, the seat circle concreties with the guide nut welded ring, the seat circle excircle is established the axle shelves and is concretied with the shell. The other end of the valve seat is provided with a taper hole matched with the valve needle, the outer end of the taper hole is provided with a tapered diffusion hole, the outer side of the tapered diffusion hole is provided with a step fixedly connected with the direct pipe, and an opening below the central step hole is fixedly connected with a side connecting pipe. The guide rail shaft is an injection molding threaded shaft with a center hole, the outer threads replace the function of a traditional spring guide rail, a non-return wedge-shaped stop block is arranged at the thread screwing inlet of the guide rail shaft, the slip ring can exceed the wedge-shaped stop block through the elastic deformation of the slip ring, a smooth circle section which cannot be exceeded by the slip ring is arranged at the other end of the guide rail shaft, so that the moving range of the slip ring is limited, the slip ring is screwed in simply and conveniently, and a counter bore for installing a valve needle spring is further arranged at the end part. The connecting sleeve is made of stainless steel material, the shape of the connecting sleeve is similar to a step ring shape, a convex ring is arranged at the large outer diameter end, and the convex ring and the magnetic ring are molded into a whole; the center of the connecting sleeve is a stepped hole, the small aperture is fixedly connected with the guide rail shaft, and the large aperture is fixedly connected with the screw rod. The lead screw is in a round platform step shape, the small end is provided with an external thread which is meshed with the guide nut, the outer diameter of the middle part is in clearance fit with the stepped hole of the guide nut, and the excircle of the large end is matched with the connecting sleeve; the center of the screw rod is provided with a stepped hole, the aperture of the small end of the screw rod is in clearance fit with a valve needle with a retaining shoulder, the valve needle retaining shoulder, a spring support and a valve needle spring are arranged in the middle area of the stepped hole, the aperture of the large end of the stepped hole is fixedly connected with a guide rail shaft, and the middle area of the stepped hole is also provided with a pressure guide hole communicated with an excircle. The spring support is in a ball head rivet shape, the large-diameter position is in clearance fit with the inner diameter of the screw rod, the chamfer of the head of the rivet is removed with sharp, and the small-diameter position is in transition fit with the inner diameter of the valve needle spring. The guide plate is a cylindrical part aggregated by a plurality of through small holes, the diameter of the cylinder is matched with the inner diameter of the direct pipe, the energy carried by the refrigerant can be properly balanced, the noise generated by valve needle vibration and refrigerant bubble breakage is reduced, and the guide plate is made of plastic or metal materials.
Assembling: and installing a seat ring on the edge opening of the valve seat, welding and solidifying, installing an assembly of the guide nut and the welding ring into the valve seat, and welding and solidifying the welding ring and the seat ring. And pressing the screw rod into a connecting sleeve combined with the magnetic ring, welding and solidifying, sequentially loading the valve needle, the spring support and the valve needle spring into a hole of the screw rod, and pressing the guide rail shaft to the screw rod from the connecting sleeve. The screw rod of the assembly part is screwed into the guide nut, the sliding ring is screwed into the guide rail shaft, the pre-assembled part comprising the shell, the positioning shaft, the supporting seat and the stop rod is sleeved from the ends of the guide rail shaft and the magnetic ring, the positioning shaft is inserted into the center hole of the guide rail shaft, the shell is sleeved on the corresponding retaining shoulder of the seat ring and is welded and fixed, then the direct pipe and the side pipe are welded on the valve seat, the guide plate is firstly arranged in the flaring section of the direct pipe before the direct pipe is welded, and then the guide plate is sleeved into the valve seat for welding.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1 according to the present invention.
Fig. 3 is a schematic view of the vertical split of the present invention.
Fig. 4 is a schematic structural view of a guide rail shaft.
FIG. 5 is a three-dimensional view of the pilot nut and weld ring combination.
FIG. 1, a housing; 2. positioning the shaft; 3. a supporting seat; 4. a stopper rod; 5. a magnetic ring; 6. a valve needle spring; 7. a spring support; 8. a guide nut; 9. a seat ring; 10. a side connection pipe; 11. a direct pipe; 12. a baffle; 13. a valve needle; 14. a valve seat; 15. a screw rod; 16. welding a ring; 17. connecting sleeves; 18. a guide rail shaft; 19. a slip ring; a. pressure guide holes; b. a wedge-shaped stop block; c. and riveting and pressing the pits.
Detailed Description
The utility model discloses constitute by shell (1), location axle (2), supporting seat (3), stop lever (4), magnetic ring (5), needle spring (6), spring support (7), guide nut (8), seat circle (9), side joint pipe (10), direct pipe (11), guide plate (12), needle (13), disk seat (14), lead screw (15), welding ring (16), adapter sleeve (17), guide rail axle (18), sliding ring (19). The shell (1) is a cylindrical thin-wall part, the arc surface of the bottom end of the cylinder is matched with the supporting seat (3), and the supporting seat (3) is locked by a riveting pit (c) of the shell (1) when being assembled in place. The positioning shaft (2) is a stainless steel smooth round bar, is an injection molding insert of the supporting seat (3), and is engraved and roughened at the embedding part to increase the combination firmness. The supporting seat (3) is formed by plastic injection molding, the overall appearance is a cylinder with an arc surface at the upper end, the arc surface is matched with the arc surface at the bottom end of the inner side of the shell (1) of the rotor, the bottom end of the supporting seat (3) is generally a plane and provided with a hollow groove, the center of the vertical plane is provided with a positioning shaft (2) insert, the side of the positioning shaft (2) is provided with a stop rod (4) insert, and a reinforcing flange is arranged around the root of the stop rod (4). The stop rod (4) is a stainless steel rectangular strip material and is an injection molding insert of the support seat (3). The guide nut (8) is formed by plastic injection molding, the appearance of the guide nut is generally in a step shape of a circular truncated cone, a stainless steel welding ring (16) insert welded with the valve seat (14) is arranged at the large end of the outer circle, a rib plate is axially arranged below the guide nut (), a stepped hole is formed in the center of the guide nut (8), the large end is a smooth hole, and an internal thread meshed with a screw rod (15) is formed at the small end.
The appearance of the valve seat (14) is in a circular step shape, a stepped hole is formed in the center of the valve seat, a seat ring (9) is arranged on the outer diameter of the large-hole-diameter end, a guide nut (8) is installed in an inner cavity, the seat ring (9) is fixedly connected with a welding ring (16), and an axle bumper is arranged on the outer circle of the seat ring (9) and fixedly connected with the shell (1). The other end of the valve seat (14) is provided with a taper hole matched with the valve needle (13), the outer end of the taper hole is provided with a tapered diffusion hole, the outer side of the tapered diffusion hole is provided with a step fixedly connected with the direct pipe (11), and an opening below the central step hole is fixedly connected with the side connecting pipe (10). The guide rail shaft (18) is an injection molding threaded shaft with a center hole, the function of a traditional spring guide rail is replaced by an external thread, a non-return wedge-shaped stop block (b) is arranged at a thread screwing inlet of the guide rail shaft (18), the sliding ring (19) can exceed the wedge-shaped stop block (b) through elastic deformation of the sliding ring (19), a smooth circle section which cannot be exceeded by the sliding ring (19) is arranged at the other end of the guide rail shaft (18) so as to limit the moving range of the sliding ring (19), the sliding ring (19) can be screwed in simply and conveniently, and a counter bore for installing the valve needle spring (6) is further arranged at the. The connecting sleeve (17) is made of stainless steel material, the shape is similar to a step ring shape, a convex ring is arranged at the large outer diameter end, and the convex ring and the magnetic ring (5) are molded into a whole by injection; the center of the connecting sleeve (17) is a stepped hole, the small aperture is fixedly connected with the guide rail shaft (18), and the large aperture is fixedly connected with the screw rod (15). The lead screw (15) is in a shape of a circular truncated cone step, the small end is provided with an external thread which is meshed with the guide nut (8), the outer diameter of the middle part is in clearance fit with a stepped hole of the guide nut (8), and the excircle of the large end is matched with the connecting sleeve (17); the center of the screw rod (15) is provided with a stepped hole, the aperture of the small end of the screw rod is in clearance fit with a valve needle (13) with a retaining shoulder, the retaining shoulder of the valve needle (13), a spring support (7) and a valve needle spring (6) are arranged in the middle area of the stepped hole, the aperture of the large end of the stepped hole is fixedly connected with a guide rail shaft (18), and the middle area of the stepped hole is also provided with a pressure guide hole (a) communicated with the excircle. The spring support (7) is in a ball head rivet shape, the large diameter part is in clearance fit with the inner diameter of the screw rod (15), the chamfer of the head part of the rivet is removed with sharp, and the small diameter part is in transition fit with the inner diameter of the valve needle spring (6). The guide plate (12) is a cylindrical part aggregated by a plurality of through small holes, the diameter of the cylinder is matched with the inner diameter of the direct pipe (11), the energy carried by the refrigerant can be properly balanced, the noise generated by vibration of the valve needle (13) and bubble breakage of the refrigerant is reduced, and the guide plate (12) is made of plastic or metal materials.
Assembling: and installing the seat ring (9) on the edge of the valve seat (14) and welding and solidifying, installing the assembly of the guide nut (8) and the welding ring (16) into the valve seat (14), and welding and solidifying the welding ring (16) and the seat ring (9). And pressing a screw rod (15) into a connecting sleeve (17) combined with the magnetic ring (5) for welding and consolidation, sequentially installing the valve needle (13), the spring support (7) and the valve needle spring (6) into a hole of the screw rod (15), and pressing the guide rail shaft (18) from the connecting sleeve (17) to the screw rod (15). The screw rod (15) of the assembly part is screwed into the guide nut (8), the sliding ring (19) is screwed into the guide rail shaft (18), then a pre-assembly part consisting of the shell (1), the positioning shaft (2), the supporting seat (3) and the stop rod (4) is sleeved from the ends of the guide rail shaft (18) and the magnetic ring (5), the positioning shaft (2) is inserted into the central hole of the guide rail shaft (18), the shell (1) is sleeved on a corresponding blocking shoulder of the seat ring (9) and welded and fixedly connected, then the direct pipe (11) and the side connecting pipe (10) are welded on the valve seat (14), the guide plate (12) is firstly placed into the flaring section of the direct pipe (11) before the direct pipe (11) is welded, and then the guide plate is sleeved into the valve seat (14).
Claims (2)
1. A rotor assembly of an electronic expansion valve is characterized by comprising a shell, a positioning shaft, a supporting seat, a stop rod, a magnetic ring, a valve needle spring, a spring support, a guide nut, a seat ring, a side connecting pipe, a direct pipe, a guide plate, a valve needle, a valve seat, a screw rod, a welding ring, a connecting sleeve, a guide rail shaft and a sliding ring, wherein the shell is a cylindrical thin-walled part, the bottom arc surface of the cylinder is matched with the supporting seat, the supporting seat is formed by plastic injection molding, the overall appearance of the supporting seat is a cylinder with the arc surface at the upper end, the arc surface is matched with the arc surface at the bottom end of the inner side of the shell of the rotor, the bottom end of the supporting seat is generally a plane and is provided with a through groove, the center of the vertical; the guide nut is formed by plastic injection molding, the appearance of the guide nut is generally in a round platform step shape, a stainless steel welding ring insert welded with the valve seat is arranged at the large end of the outer circle, a rib plate is axially arranged below the guide nut, a stepped hole is formed in the center of the guide nut, the large end is a smooth hole, and an internal thread meshed with a screw thread of the screw rod is arranged at the small end; the valve seat is in a circular step shape, a step hole is formed in the center of the valve seat, a seat ring is arranged on the outer diameter of the large-aperture end of the valve seat, a guide nut is installed in an inner cavity of the valve seat, the seat ring is fixedly connected with a welding ring of the guide nut, a shaft stop is arranged on the outer circle of the seat ring and fixedly connected with the shell, a taper hole matched with the valve needle is formed in the other end of the valve seat, a tapered diffusion hole is formed in the outer end of the taper hole, a step fixedly connected with a direct pipe is formed in the; the guide rail shaft is an injection molding threaded shaft provided with a central hole, a non-return wedge-shaped stop block is arranged at a threaded inlet of the guide rail shaft, a smooth circle section which cannot be exceeded by the sliding ring is arranged at the other end of the guide rail shaft, and a counter bore for mounting a valve needle spring is further arranged at the end part of the guide rail shaft; the lead screw is in a round platform step shape, the small end is provided with an external thread which is meshed with the guide nut, the outer diameter of the middle part is in clearance fit with the stepped hole of the guide nut, and the excircle of the large end is matched with the connecting sleeve; the center of the screw rod is provided with a stepped hole, the aperture of the small end of the screw rod is in clearance fit with a valve needle with a retaining shoulder, the valve needle retaining shoulder, a spring support and a valve needle spring are arranged in the middle area of the stepped hole, the aperture of the large end of the stepped hole is fixedly connected with a guide rail shaft, and the middle area of the stepped hole is also provided with a pressure guide hole communicated with an excircle.
2. The electronic expansion valve rotor assembly of claim 1, wherein the baffle is a cylindrical member assembled by a plurality of through holes, the diameter of the cylinder is matched with the inner diameter of the direct pipe, and the baffle is made of plastic or metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020955109.1U CN212251209U (en) | 2020-05-30 | 2020-05-30 | Electronic expansion valve rotor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020955109.1U CN212251209U (en) | 2020-05-30 | 2020-05-30 | Electronic expansion valve rotor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212251209U true CN212251209U (en) | 2020-12-29 |
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ID=73977473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020955109.1U Active CN212251209U (en) | 2020-05-30 | 2020-05-30 | Electronic expansion valve rotor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212251209U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352798A (en) * | 2022-01-26 | 2022-04-15 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
| WO2023165306A1 (en) * | 2022-03-04 | 2023-09-07 | 浙江盾安人工环境股份有限公司 | Nut structure and electric valve |
-
2020
- 2020-05-30 CN CN202020955109.1U patent/CN212251209U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352798A (en) * | 2022-01-26 | 2022-04-15 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
| CN114352798B (en) * | 2022-01-26 | 2023-01-03 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
| WO2023142224A1 (en) * | 2022-01-26 | 2023-08-03 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration device |
| WO2023165306A1 (en) * | 2022-03-04 | 2023-09-07 | 浙江盾安人工环境股份有限公司 | Nut structure and electric valve |
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