CN219432450U - Electronic expansion valve for vehicle - Google Patents
Electronic expansion valve for vehicle Download PDFInfo
- Publication number
- CN219432450U CN219432450U CN202320215969.5U CN202320215969U CN219432450U CN 219432450 U CN219432450 U CN 219432450U CN 202320215969 U CN202320215969 U CN 202320215969U CN 219432450 U CN219432450 U CN 219432450U
- Authority
- CN
- China
- Prior art keywords
- screw seat
- valve
- electronic expansion
- assembly
- expansion valve
- 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.)
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Classifications
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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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- Lift Valve (AREA)
Abstract
The utility model discloses an electronic expansion valve for a vehicle, belongs to the technical field of vapor compression refrigeration, and is suitable for an automobile thermal management system. The valve core assembly 2 is composed of a sleeve limiting assembly 21, a rotor valve rod assembly 22, a guide screw seat 23 and a valve seat body assembly 24. The method is characterized in that: the guide screw seat 23 is composed of a screw seat plastic part 231 and a metal part 232. Compared with the prior art, the screw seat plastic part 231 and the metal part 232 are connected into a whole through injection molding, and the screw seat plastic part has the advantages of high part production and processing efficiency, low cost and long product service life.
Description
Technical Field
The utility model relates to an electronic expansion valve for a vehicle, which belongs to the technical field of vapor compression refrigeration and is suitable for an automobile thermal management system.
Background
The electronic expansion valve for the automobile is a key component in the automobile heat management system. At present, the automobile electronic expansion valve industry is developed rapidly, and manufacturers are numerous and compete strongly. The production efficiency of the product is improved, and the reduction of the production cost is important for each manufacturer.
The structure of the conventional electronic expansion valve for the vehicle is shown in fig. 2, and mainly comprises a driving coil 1, a valve core assembly 2 and a valve body 3. The valve core assembly 2 is composed of a sleeve limiting assembly 21, a rotor valve rod assembly 22, a guide screw seat 23 and a valve seat body assembly 24. Because the guide screw seat 23 is in threaded fit with the rotor valve rod assembly 22, the rotor valve rod assembly 22 moves up and down linearly through the screw motion, and the movement is frequent in actual work, the surface roughness of the guide screw seat 23 is required to be good, otherwise, the abrasion of parts is serious, and the service life is shortened. In the prior art, the lead screw seat 23 is obtained by adopting a machining mode, and is limited by the machining mode, so that the surface roughness of the part cannot be machined well, the part is worn quickly in actual use, and the service life is not long. In addition, machining is a material reduction process, waste materials are generated, and cost is increased.
Disclosure of Invention
The utility model aims to solve the problems and provides a novel guide screw rod seat structure of an electronic expansion valve for a vehicle, which has the advantages of more convenient part production and processing, lower product cost and longer product service life.
The utility model relates to an electronic expansion valve for a vehicle, which mainly comprises a driving coil, a valve core assembly and a valve body, wherein the valve core assembly further comprises a sleeve limiting assembly, a rotor valve rod assembly, a guide screw seat and a valve seat body assembly, and is characterized in that: the guide screw seat consists of a screw seat plastic part and a metal part.
The utility model also comprises the following additional technical characteristics:
the screw seat plastic part and the metal part are connected into a whole through injection molding.
The screw seat plastic part is a plastic part and is formed when the screw seat plastic part is connected with a metal part in an injection molding way.
The metal part is a torus metal part, and threads are arranged on the inner torus of the torus metal part.
The guide screw seat is produced in an injection molding mode, and has the advantages of convenience, rapidness and high efficiency compared with the guide screw seat produced in a mechanical processing mode. In addition, the screw seat plastic part is integrally injection molded, so that materials are not wasted, and the cost is reduced. And because the screw rod seat plastic part is formed by injection molding, the surface roughness of the part is better and more wear-resistant, thereby prolonging the service life of the product. In addition, the metal piece arranged on the lead screw seat aims to improve the strength of the lead screw seat so as to prevent the lead screw seat from being extruded and deformed in the assembly process. The purpose of the screw thread on the inner ring surface of the metal piece is to increase the connection strength between the metal piece and the screw seat plastic piece and avoid the separation of the metal piece and the screw seat plastic piece.
The utility model is described in further detail below with reference to the drawings and the detailed description.
Drawings
FIG. 1 is a block diagram of an electronic expansion valve for a vehicle according to the present utility model;
1-driving coil, 2-valve core assembly, 3-valve body, 21-sleeve limit assembly, 22-rotor valve rod assembly, 23-lead screw seat, 24-valve seat body assembly, 231-screw seat plastic part and 232-metal part
FIG. 2 is a block diagram of a known electronic expansion valve for a vehicle;
1-driving coil, 2-valve core assembly, 3-valve body, 21-sleeve limit assembly, 22-rotor valve rod assembly, 23-lead screw seat and 24-valve seat body assembly
FIG. 3 is a block diagram of a lead screw seat of the electronic expansion valve for a vehicle of the present utility model;
fig. 4 is a block diagram of a lead screw seat of a known electronic expansion valve for a vehicle.
Description of the embodiments
As shown in fig. 1, the utility model mainly comprises a driving coil 1, a valve core assembly 2 and a valve body 3. The valve core assembly 2 is composed of a sleeve limiting assembly 21, a rotor valve rod assembly 22, a guide screw seat 23 and a valve seat body assembly 24. The guide screw seat 23 is composed of a screw seat molding member 231 and a metal member 232, and the screw seat molding member 231 and the metal member 232 are integrally connected through injection molding. Screw seat molding 231 is a plastic part that is formed during injection molding connection with metal piece 232. The metal piece 232 is a torus metal piece having threads 232a on its inner torus.
The valve assembly process is as follows:
the valve seat body assembly 24 is assembled, the guide screw seat 23 is pressed into the valve seat body assembly 24, the rotor valve rod assembly 22 and the guide screw seat 23 are in threaded connection and matched together, the sleeve limiting assembly 21 is assembled on the valve seat body assembly 24, and the valve core assembly 2 is assembled. And then the valve core assembly 2 is arranged on the valve body 3, and finally the driving coil 1 is sleeved on the valve core assembly 2, so that the whole product is assembled.
The valve works as follows:
the driving coil 1 is powered in the forward direction or the reverse direction to force the rotor valve rod assembly 22 to make a clockwise or counterclockwise spiral motion on the lead screw seat 23, and simultaneously the rotor valve rod assembly 22 moves upwards or downwards linearly, so that the valve port is opened or closed.
The above examples are only for illustrating but not limiting the technical solution of the present utility model. Any modification or partial replacement without departing from the spirit and scope of the present utility model shall be covered by the scope of the claims of the present utility model.
Claims (4)
1. The utility model provides an automobile-used electronic expansion valve, mainly comprises drive coil (1), case subassembly (2), valve body (3), and wherein case subassembly (2) are by sleeve pipe spacing subassembly (21), rotor valve rod subassembly (22), lead screw seat (23) and disk seat body subassembly (24) again, its characterized in that: the guide screw seat (23) consists of a screw seat plastic part (231) and a metal part (232).
2. The electronic expansion valve for vehicle according to claim 1, wherein: the screw seat plastic part (231) and the metal part (232) are connected into a whole through injection molding.
3. The electronic expansion valve for vehicle according to claim 2, wherein: the screw seat plastic part (231) is a plastic part and is formed when being connected with the metal part (232) in an injection molding way.
4. The electronic expansion valve for vehicle according to claim 2, wherein: the metal piece (232) is a torus metal piece, and threads (232 a) are arranged on the inner torus of the torus metal piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320215969.5U CN219432450U (en) | 2023-02-15 | 2023-02-15 | Electronic expansion valve for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320215969.5U CN219432450U (en) | 2023-02-15 | 2023-02-15 | Electronic expansion valve for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219432450U true CN219432450U (en) | 2023-07-28 |
Family
ID=87338111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320215969.5U Active CN219432450U (en) | 2023-02-15 | 2023-02-15 | Electronic expansion valve for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219432450U (en) |
-
2023
- 2023-02-15 CN CN202320215969.5U patent/CN219432450U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |