CN212718008U - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN212718008U CN212718008U CN202021496354.7U CN202021496354U CN212718008U CN 212718008 U CN212718008 U CN 212718008U CN 202021496354 U CN202021496354 U CN 202021496354U CN 212718008 U CN212718008 U CN 212718008U
- Authority
- CN
- China
- Prior art keywords
- valve
- electronic expansion
- expansion valve
- stator
- rotor
- 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.)
- Active
Links
Images
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model provides an electronic expansion valve, including valve module and valve body, valve module and valve body connection, the valve module includes stator module, case subassembly, the case subassembly includes rotor, sleeve pipe, disk seat, case, stator module is located the outside of rotor, the rotor is located the sleeve pipe is inboard, the disk seat has the valve port, it is relative that the rotor can drive the needle the valve port motion, case subassembly and fixed plate interference fit, stator module passes through the fixed plate with the case subassembly and can dismantle the connection, can dismantle the connection through between stator module and the case subassembly, conveniently changes stator module, satisfies the requirement that the customer required whole valves of delivering again.
Description
Technical Field
The utility model relates to a fluid control field, concretely relates to electronic expansion valve.
Background
201811146859.8 patent application provides an electrically operated valve, when the problem appears, stator module is difficult to change, can only change whole valves. When the whole valve bank is replaced, the refrigerant of the system needs to be discharged, and the refrigerant is refilled after replacement, so that the cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an electronic expansion valve through can dismantling the connection between stator module and the case subassembly, conveniently changes stator module, satisfies the requirement that the whole valves of customer requirement were delivered again.
The utility model provides an electronic expansion valve, electronic expansion valve includes valve module and valve body, valve module and valve body are connected, the valve module includes stator module, case subassembly, the case subassembly includes rotor, sleeve pipe, disk seat, case, stator module is located the outside of rotor, the rotor is located the sleeve pipe is inboard, the disk seat has the valve port, it is relative that the rotor can drive the needle valve the valve port motion, case subassembly and fixed plate interference fit, stator module passes through the fixed plate with the case subassembly and can dismantle and be connected.
The fixed plate is divided into a flat plate part and a downward bending part; the middle of the flat plate is provided with a press fitting hole which is fixed with the connecting piece in an interference fit way; the downward bending part is provided with a threaded hole and is connected with the fixing piece through a screw.
The downward bent part of the fixing plate is attached to the side surface of the valve body to limit the rotation of the valve component.
The middle of the downward bending part of the fixing plate is provided with a notch, and the fixing sheet can enter the notch.
The valve core assembly and the fixed plate are in interference fit through a connecting piece.
The connecting piece has a step, by means of which the fixing plate defines the axial position.
The outer diameter of the interference fit position of the connecting piece and the fixing plate is larger than the outer diameter of the sleeve.
The fixed plate is provided with a straight edge, the valve seat is provided with a straight groove matched with the stop lever for limiting, and the straight groove determines the relative position through the straight edge of the fixed plate.
The stator module side sets up predetermined space, fixes the stationary blade through the encapsulating wherein.
Drawings
Fig. 1 is a sectional view of an electronic expansion valve.
Fig. 2 is a partially enlarged view.
Fig. 3 is a front view of the valve assembly.
Fig. 4 is an exploded perspective view of the valve assembly.
Detailed Description
The invention will be further described with reference to the drawings and the detailed description, which are clearly described in the background documents cited and are not overrepresented here.
Referring to fig. 1, 2, 3 and 4, in the present embodiment, the electronic expansion valve includes a valve body 1 and a valve assembly 2, and the valve assembly 2 and the valve body 1 are fixedly connected or detachably connected.
The valve assembly 2 comprises a valve core assembly 10 and a stator assembly 20; in this embodiment, the valve assembly 2 is relatively limited with the valve body 1, and the valve core assembly 10 is relatively limited with respect to the stator assembly 20; i.e., the core assembly 10 is removably coupled to the stator assembly 20 such that the valve assembly is formed as a single unit.
The stator assembly 20 comprises a coil 21, a framework 22, a fixing piece 23 and a connecting terminal 24, wherein the framework 22 provides support for winding the coil 21; referring to fig. 2, in this embodiment, the stator assembly 20 further includes an injection molded body, in this embodiment, the injection molded body uses components including the coil 21 and the frame 22 as an injection molding insert, and the injection molded body forms the insulating layer 25 of the stator assembly 20 on the periphery of the coil 21 and the frame 22, so as to prevent the stator assembly 20 from being corroded by the working medium or air. The fixing piece 23 is disposed on the side of the insulating layer 25, where a predetermined space is formed, and is fixedly connected to the insulating layer 25 by potting therein. Of course, the stator 23 may be directly contacted and fixed with the stator housing 27 inside the insulating layer 25 by potting, so as to achieve grounding. The control system is connected with the terminal 24 through a lead 26, and controls the coil 21, thereby controlling the work of the electronic expansion valve.
The valve core assembly 10 comprises a screw 11, a connecting piece 12, a sleeve 13, a rotor 14, a nut 15, a connecting piece 16, a valve needle 17 and a valve seat 18, wherein the rotor 14 can drive the valve needle 17 to move, the valve needle 17 can move relative to the valve seat 18, the valve seat 18 is provided with a valve port 181, the valve port 181 is communicated with channels on two sides of the valve port 181, and throttling can be formed at the valve port 181. The sleeve 13 covers the periphery of the magnetic rotor 14, the sleeve 13 is welded and fixed with the connecting piece 16, and the valve seat 18 is fixedly connected with the connecting piece 16. The connecting piece is used for mainly solving the connection problem among different materials, the connecting piece is easy to weld and weld with the sleeve 13, the valve seat is easy to machine and can be in interference fit with the connecting piece. The valve core assembly 10 and the valve body 1 are sealed by sealing rings 3 and 4.
When the valve component 2 is assembled, firstly, the valve core component 10 and the stator component 20 are assembled, then the valve core component 10 is subjected to performance detection and helium leakage detection, and then the valve core component 10 is pressed on the fixing plate 5 and fixedly connected together; the stator assembly 20 is then mounted to the valve core assembly 10, and the stator assembly 20 is fixedly connected to the stationary plate 5 by the fixing plate 23 through the screws 6, thereby forming the valve assembly 2. The fixed plate 5 is divided into a flat plate part and a downward bent part; a press fitting hole 52 is formed in the middle of the flat plate, and the press fitting hole 52 is fixed with the connecting piece 16 in an interference fit manner; the downturned portion has a threaded hole for attachment of a fixing plate 23 by means of a screw 6. The connecting piece 16 has a step 161, by means of which step 161 the axial position of the fixing plate 5 is defined. The outer diameter 162 of the interference fit part of the connecting piece 16 and the fixing plate 5 is larger than the outer diameter 131 of the sleeve.
In addition, the downward bent portion is fitted to the side surface of the valve body 1 to restrict the rotation of the valve assembly 2. Because the stationary blade passes through the encapsulating and connects, can't stretch out the encapsulating space and just buckle and stop the encapsulating. A notch 51 is arranged in the middle of the downward bending part of the fixing plate, and the fixing sheet can enter the notch, and then bending adaptation and screw connection are carried out after the downward bending part of the fixing plate is attached.
The valve body 1 is further provided with at least two stop rod holes (not shown), the stop rods 8 are arranged in the stop rod holes, and the valve seat 18 is provided with a matching part which is matched and limited with the stop rods, wherein the matching part is a straight groove 19 or an annular groove. The valve body 1 is formed with at least one breach, at least a part of pin passes through the breach stretches into in the chamber, stretch into in the chamber the pin portion with cooperation portion butt, the pin restriction the displacement of disk seat in the axis direction. All of the above are set forth in the background documents. When the valve component is assembled, if no mark exists, whether the straight groove 19 is aligned with the stop rod hole or not cannot be determined, therefore, the fixing plate 5 is provided with a straight edge, a mold is used for ensuring the relative positions of the straight edge and the straight groove 19, and the specific position of the straight groove 19 is determined by the straight edge of the fixing plate at the final assembly, for example, the central line of the straight groove is parallel to one straight edge of the fixing plate.
It should be noted that: the above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the expressions such as upper, lower, inner, outer, etc. appearing herein are only for the purpose of more clearly illustrating the technical solutions of the present invention, but not for limiting the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, it will be understood by those skilled in the art that the present invention may be modified and replaced by other embodiments without departing from the spirit and scope of the present invention.
Claims (10)
1. The electronic expansion valve comprises a valve component and a valve body, the valve component is connected with the valve body, the valve component comprises a stator component and a valve core component, the valve core component comprises a rotor, a sleeve, a valve seat and a valve needle, the stator component is positioned on the outer side of the rotor, the rotor is positioned on the inner side of the sleeve, the valve seat is provided with a valve port, and the rotor can drive the valve needle to move relative to the valve port, and the electronic expansion valve is characterized in that: the valve core assembly is in interference fit with the fixing plate, and the stator assembly is detachably connected with the valve core assembly through the fixing plate.
2. The electronic expansion valve of claim 1, wherein: the fixing plate is divided into a flat plate part and a downward bending part; the middle of the flat plate part is provided with a press fitting hole which is fixed with the connecting piece in an interference fit way; the downward bending part is provided with a threaded hole and is connected with the fixing piece through a screw.
3. The electronic expansion valve of claim 1, wherein: the valve core assembly and the fixed plate are in interference fit through a connecting piece.
4. The electronic expansion valve of claim 2, wherein: the fixed plate downward bending part is attached to the side face of the valve body.
5. The electronic expansion valve of claim 2, wherein: and a notch is arranged in the middle of the downward bending part of the fixing plate.
6. The electronic expansion valve of claim 3, wherein: the connecting piece has a step, by means of which the fixing plate defines an axial position.
7. The electronic expansion valve of claim 3, wherein: the outer diameter of the interference fit position of the connecting piece and the fixing plate is larger than the outer diameter of the sleeve.
8. The electronic expansion valve of claim 1, wherein: the fixed plate is provided with a straight edge, the valve seat is provided with a straight groove matched with the stop lever for limiting, and the straight groove determines the relative position through the straight edge of the fixed plate.
9. The electronic expansion valve of claim 1, wherein: the stator module side sets up predetermined space, through wherein encapsulating fixed connection stationary blade.
10. The electronic expansion valve of claim 9, wherein: the stator plate is in direct contact with a stator housing of the stator assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021496354.7U CN212718008U (en) | 2020-07-24 | 2020-07-24 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021496354.7U CN212718008U (en) | 2020-07-24 | 2020-07-24 | Electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212718008U true CN212718008U (en) | 2021-03-16 |
Family
ID=74909085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021496354.7U Active CN212718008U (en) | 2020-07-24 | 2020-07-24 | Electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212718008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023143073A1 (en) * | 2022-01-27 | 2023-08-03 | 浙江三花汽车零部件有限公司 | Valve device and electric valve |
-
2020
- 2020-07-24 CN CN202021496354.7U patent/CN212718008U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023143073A1 (en) * | 2022-01-27 | 2023-08-03 | 浙江三花汽车零部件有限公司 | Valve device and electric valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101375377B1 (en) | An electric valve | |
| WO2015106724A1 (en) | Direct-action-type electrically-operated valve and assembly method therefor | |
| US7126449B2 (en) | Electromagnetic valve | |
| KR102408886B1 (en) | Valve Core Assembly | |
| KR20200006090A (en) | Method of manufacturing electronic expansion valves, thermal management assemblies, cooling systems, and electronic expansion valves | |
| CN212718008U (en) | Electronic expansion valve | |
| KR20130085039A (en) | Electrically-operated valva | |
| CN109538772B (en) | Electronic expansion valve | |
| JP2018179205A (en) | Control valve and manufacturing method of the same | |
| CN110094525B (en) | Electrically operated valve and manufacturing method thereof | |
| CN213206563U (en) | Electronic expansion valve | |
| CN110094513B (en) | Electric valve | |
| CN212107023U (en) | Pneumatic stop reversing valve | |
| CN212455694U (en) | Valve device | |
| CN112984127A (en) | Electronic expansion valve | |
| EP4246022A1 (en) | Electric valve | |
| KR102313777B1 (en) | Electric valve and its manufacturing method | |
| CN110966414A (en) | Electrically operated valve and thermal management assembly | |
| CN110966445A (en) | Valve assembly, electrically operated valve and thermal management assembly | |
| CN211574369U (en) | Electronic expansion valve | |
| CN212718017U (en) | Electromagnetic valve | |
| CN114321396A (en) | Electric valve | |
| JP7089041B2 (en) | Electronic expansion valve | |
| CN215928555U (en) | Solenoid valve assembly | |
| CN220204825U (en) | Dynamic electromagnetic valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230522 Address after: Floor 11-230, Building 15, International Car City, No. 309 Green Valley Avenue, Nanmingshan Street, Liandu District, Lishui City, Zhejiang Province, 323010 Patentee after: Zhejiang Zhihui Automotive Thermal Management Technology Co.,Ltd. Address before: 323700 No.2 Guangyuan Road, regression project, Longquan City, Lishui City, Zhejiang Province Patentee before: Longquan Huifeng import and Export Co.,Ltd. |
|
| TR01 | Transfer of patent right |