CN215635281U - Electronic expansion valve and refrigeration equipment - Google Patents
Electronic expansion valve and refrigeration equipment Download PDFInfo
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- CN215635281U CN215635281U CN202121713184.8U CN202121713184U CN215635281U CN 215635281 U CN215635281 U CN 215635281U CN 202121713184 U CN202121713184 U CN 202121713184U CN 215635281 U CN215635281 U CN 215635281U
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- electronic expansion
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- valve body
- core seat
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Abstract
The utility model discloses an electronic expansion valve and refrigeration equipment, wherein the electronic expansion valve comprises: the valve body is provided with a valve cavity; the valve core seat is arranged on the valve body, and the periphery of the valve core seat is provided with a first assembling surface matched with the valve body; the connecting pipe is provided with a first connecting end, the first connecting end is connected with the valve core seat, the inner diameter of the first connecting end is larger than the outer diameter of the first assembling surface of the valve core seat, and the valve core seat is provided with a valve port which is communicated with the connecting pipe and the valve cavity. According to the utility model, the outer diameter of the first connecting end of the connecting pipe is larger than the inner diameter of the first assembling surface matched with the valve core seat and the valve body, so that the opening of the first connecting end of the connecting pipe is enlarged, the filtering device can be directly installed from the first connecting end of the connecting pipe, a port for assembling the filtering device is conveniently formed on the electronic expansion valve, and the system pipeline of the refrigeration equipment is conveniently simplified.
Description
Technical Field
The utility model relates to the field of refrigeration equipment, in particular to an electronic expansion valve and refrigeration equipment.
Background
The electronic expansion valve is used in refrigeration equipment such as refrigerators, air conditioners and the like and is used for controlling the flow of a refrigerant. The existing electronic expansion valve is directly connected with a system pipeline, a refrigerant directly enters the electronic expansion valve through the system pipeline, and the output flow control is realized through the adjustment of the electronic expansion valve. Because the connecting pipe of the electronic expansion valve is designed to be directly connected with the system pipeline, the filtering device cannot be directly installed in the connecting pipe of the electronic expansion valve. The existing electronic air conditioner system pipeline is usually provided with a filtering device separately for refining refrigerant bubbles. The filtering device is installed independently, so that the design difficulty of the system pipeline is increased, the system pipeline is complex, and the maintenance cost of the system pipeline is relatively increased.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an electronic expansion valve and refrigeration equipment, and aims to solve the problem that a filtering device cannot be installed in the conventional electronic expansion valve.
In order to achieve the above object, the present invention provides an electronic expansion valve, comprising:
the valve body is provided with a valve cavity;
the valve core seat is arranged on the valve body, and the periphery of the valve core seat is provided with a first assembling surface matched with the valve body; and
the valve core seat is provided with a valve cavity, the valve cavity is communicated with the valve core seat, the valve core seat is provided with a valve port, and the valve port is communicated with the valve cavity.
Optionally, the valve cartridge seat comprises:
the first mounting section is provided with the first assembling surface at the periphery; and
the valve port is arranged in a penetrating mode through the first mounting section and the second mounting section, the outer diameter of the second mounting section is larger than that of the first mounting section, and the second mounting section is connected with the first connecting end of the connecting pipe.
Optionally, the first connecting end of the connecting pipe is sleeved on the periphery of the second mounting section.
Optionally, the first connecting end of the connecting pipe is in interference fit with the second mounting section.
Optionally, the first mounting section is an interference fit with the valve body.
Optionally, the valve cartridge seat further comprises:
the third installation section is arranged between the first installation section and the second installation section, the outer diameter of the third installation section is larger than that of the second installation section, a third assembly surface is formed between the third installation section and the first installation section, and the third assembly surface faces the outer surface of the valve body.
Optionally, one end of the third installation section, which is close to the valve body, is provided with a fillet or a chamfer so that an opening is formed between the third installation section and the valve body, and one end of the third installation section, which is close to the valve body, is welded and fixed after being welded by at least part of welding rings in the opening.
Optionally, the first connecting end of the connecting pipe is sleeved on the periphery of the second mounting section, a second assembling surface is formed between the second mounting section and the third mounting section, and the first connecting end of the connecting pipe abuts against the second assembling surface.
Optionally, the first connection end of the connection pipe and the valve body are welded and fixed after being melted by the welding ring.
Optionally, the outer diameter of the adapter tube is smaller than the outer diameter of the third mounting section.
Optionally, the inner diameter of the first connection end of the adapter tube is not less than 8 mm.
Optionally, the nipple is provided with a filter device.
The utility model also proposes a refrigeration device comprising an electronic expansion valve as defined in any one of the preceding claims.
According to the technical scheme, the first assembling surface of the valve core seat and the valve body are assembled with each other to realize installation, the outer diameter of the first connecting end of the connecting pipe is larger than the inner diameter of the first assembling surface matched with the valve core seat and the valve body, so that the opening of the first connecting end of the connecting pipe is enlarged, the filtering device can be directly installed from the first connecting end of the connecting pipe, a port for assembling the filtering device is conveniently formed on the electronic expansion valve, and the system pipeline of the refrigeration equipment is conveniently simplified.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an electronic expansion valve according to an embodiment of the present invention;
FIG. 2 is a partial enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural diagram of an electronic expansion valve according to another embodiment of the present invention;
FIG. 4 is a partial enlarged view of the portion B in FIG. 3;
fig. 5 is a schematic structural view of an embodiment of the valve core seat of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
11 | |
| 20 | |
21 | Valve |
| 22 | |
23 | |
| 24 | Second mounting section | 25 | |
| 26 | |
27 | |
| 30 | Connecting |
40 | Welding ring |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides an electronic expansion valve, which is disposed in a system pipeline of a refrigeration device and is used for controlling a flow rate of a refrigerant. Fig. 1 to 5 are corresponding drawings of an embodiment of the present invention.
Referring to fig. 1 and 2, in an embodiment, the electronic expansion valve includes:
the valve comprises a valve body 10, wherein a valve cavity 11 is formed in the valve body 10; the valve cavity 11 is used for accommodating refrigerant. The valve body 10 is used as the main structure of the electronic expansion valve. The valve body 10 may be an integral structure or may be formed by combining a plurality of housing components.
The valve core seat 20 is arranged on the valve body 10, and the periphery of the valve core seat 20 is provided with a first assembling surface 23 matched with the valve body 10; the valve core seat 20 is provided with a valve port 21, and the valve port 21 is communicated with the valve cavity 11 and is used for realizing the input or output of refrigerant of the valve cavity 11. The valve core seat 20 is installed on the valve body 10 and is matched with the valve body 10. The valve body 10 has a mounting opening for mounting the valve core seat 20, and the valve core seat 20 is partially inserted into the mounting opening to mount and fix the valve core seat 20.
The connecting pipe 30 has a first connecting end, the first connecting end is connected with the valve core seat 20, the inner diameter of the first connecting end is larger than the outer diameter of the first assembling surface 23 of the valve core seat 20, and the valve port 21 on the valve core seat 20 is used for communicating the connecting pipe 30 and the valve chamber 11. The connection pipe 30 has a first connection end connected to the connection pipe 30 and a second connection end for connecting a system pipe. The first coupling end may have an inner diameter greater than that of the second coupling end, and the first coupling end serves as an open end of the adapter tube 30.
The first assembling surface 23 is adapted to an inner wall surface of the mounting port of the valve body 10, and an inner diameter of the first connecting end is larger than an outer diameter of the first assembling surface 23. By increasing the outer diameter of the first connection end of the adapter tube 30, the inner diameter of the open end of the interface can be enlarged, thereby facilitating installation of other functional components such as a filter device and the like in the adapter tube 30.
Optionally, the outer diameter of the first connection end is greater than or equal to the maximum outer diameter of the valve core seat 20, so that the connection pipe 30 and the valve core seat 20 can be connected and fixed to each other. While the inner diameter of the open end of the nipple 30 can be further enlarged.
Referring to fig. 1, by enlarging the inner diameter of the first connection end of the connection pipe 30, the processing difficulty of the connection pipe 30 is reduced, the coaxiality of the connection pipe 30 and the valve core seat 20 during assembly can be effectively improved, and the assembly defect is reduced. By adopting the welding mode to connect as an example, when the connecting pipe 30 and the valve core seat 20 are assembled with each other for welding, through increasing the inner diameter of the connecting pipe 30, a sufficient space can be provided for the welding position, so that the welding material can more sufficiently contact the connecting pipe 30 and the valve core seat 20, the welding effect of the mutual welding position of the connecting pipe 30 and the valve core seat 20 can be facilitated to be improved, and further the welding defect can be avoided. In one embodiment, the first connection end of the adapter tube 30 has an inner diameter of not less than 8mm to facilitate insertion of a filtering device for filtering the refrigerant into the adapter tube 30.
Referring to fig. 1, in an embodiment, a filtering device is disposed in the connection pipe 30, and the filtering device moves into the connection pipe 30 from the first connection end of the connection pipe 30 and is connected and fixed with the inner wall of the connection pipe 30. In this embodiment, the filtering device may be a filtering net, the filtering net is provided with a filtering net seat, and the filtering net is connected and fixed with the inner wall of the connection pipe 30 through the filtering net seat. Since the first connection end of the connection pipe 30 serves as an open end, when the filter screen is installed, the filter screen together with the filter screen seat thereof can be placed into the interface from the first connection end, and the filter screen seat is fixed on the inner wall of the connection pipe 30. When the inner diameter of the first connection end is greater than or equal to the maximum outer diameter of the valve core seat 20, the first connection pipe 30 may be directly sleeved on the valve core seat 20, so as to facilitate the mutual adaptation and installation of the valve core seat 20 and the connection pipe 30.
When the electronic expansion valve is manufactured, the outer diameter of the filter screen seat of the filter device can be directly larger than or equal to the maximum outer diameter of the valve core seat 20, the filter device is installed into the connecting pipe 30 from the first connecting end, and the filter screen seat is clamped on the inner wall of the connecting pipe, so that the fixing and the installation of the filter device are realized. Since the filter device can be directly placed into the connection pipe 30 from the first connection end, and the filter device is used as a part of the electronic expansion valve, it is not necessary to separately install a filter device in a system pipeline, so that the system pipeline can be simplified, and the filter device can be maintained synchronously when the electronic expansion valve is maintained. Optionally, the mesh number of the filter screen of the filter device is not less than 80 meshes so as to ensure the filtering effect. The filter screen may be circular, or other shapes.
The inner diameter of the second connecting end of the connecting pipe 30 may be smaller than that of the first connecting end, so that the second connecting end of the connecting pipe 30 is conveniently matched with a system pipeline of the existing refrigeration equipment, and is convenient to install. By making the inner diameter of the first connection end larger than the inner diameter of the first assembly surface 23, the filtering device can be directly installed from the first connection end, the refrigerant can be filtered through the electronic expansion valve, bubbles of the refrigerant are refined, and fluid noise of the refrigerant is reduced. Because the filter does not need to be additionally arranged on the refrigeration equipment independently, the production cost of the refrigeration equipment can be reduced.
Referring to fig. 2, in an embodiment, the valve core seat 20 includes:
a first mounting section 22, the first mounting section 22 having the first mounting surface 23 formed on an outer periphery thereof; the first assembling surface 23 of the first mounting section 22 is in conformity with the inner surface of the mounting opening of the valve body 10, so that when the first mounting section 22 is inserted into the mounting opening, the first assembling surface 23 can be attached to the inner wall of the mounting opening.
The second installation section 24 is connected to the first installation section 22, the valve port 21 is disposed through the first installation section 22 and the second installation section 24, and the second installation section 24 is connected to the first connection end of the connection pipe 30. The second mounting section 24 may be integrally formed with the first mounting section 22, and both may be coaxially disposed to facilitate mating with the adapter tube 30. The outer diameter of the second mounting section 24 is larger than the outer diameter of the first mounting surface 23 of the first mounting section 22. Optionally, the first mounting section 22 is in interference fit with the valve body 10, a mounting opening is formed in the valve body 10, and the first mounting section 22 is in interference fit with the mounting opening to ensure coaxiality of the valve core seat 20 and the valve body 10.
The first connecting end of the connecting pipe 30 is connected and fixed with the second mounting section 24, so as to connect the connecting pipe 30 and the valve core seat 20. The first coupling end may have an inner diameter greater than an outer diameter of the second mounting section 24. The first connecting end and the second mounting section 24 can be welded or fixed to each other by other structures. For convenience of fixation, optionally, the first connection end of the connection pipe 30 is sleeved on the outer periphery of the second installation section 24, and the first connection end and the valve core seat 20 may be welded to each other. In another embodiment, an axial end surface of the first connection end abuts against an outer wall surface of the valve body 10, and the first connection end and the valve body 10 are welded to each other, so that the first mounting surface 23 of the valve core seat 20 and the mounting opening of the valve body 10 can be in interference fit.
The first assembling surface 23 may be an outer surface of the first mounting section 22, and since an outer diameter of the first mounting section 22 is smaller than an outer diameter of the second mounting section 24, the first mounting section 22 of the valve core seat 20 may be inserted into a mounting opening of the valve body 10 from an outside of the valve body 10, so as to facilitate mounting the valve core seat 20 from the outside. Since the valve body 10 is usually provided with a valve needle for adjusting the opening degree of the valve port 21 therein, and an internal valve stem for driving the valve needle to move, the valve core seat 20 can be externally installed after the installation of the internal components of the valve body 10 is completed by arranging the valve core seat 20 to be externally installed, so as to improve the installation efficiency of the electronic expansion valve. During installation, the valve rod inside the valve body 10, the nut for installing the valve rod, and other components may be arranged coaxially with the installation port of the valve body 10, then the valve core seat 20 and the connection pipe 30 are installed from the outside of the valve body 10, the valve port on the valve core seat 20 is arranged coaxially with the installation port, and by enlarging the inner diameter of the opening of the first connection end, the assembly accuracy between the connection pipe 30 and the valve core seat 20 is more conveniently monitored, which is helpful for improving the assembly accuracy of the valve core seat 20 and simplifying the assembly steps.
In order to improve the sealing performance, optionally, the first connection end of the connection pipe 30 is in interference fit with the second mounting section 24, and an axial end face of the first connection end of the connection pipe 30 may have a gap with the valve body 10 or may abut on an outer surface of the valve body 10. Further optionally, when the first connection end is installed, the first connection end is in interference fit with the second installation section 24 of the valve core seat 20, so as to improve the coaxiality of the connection pipe 30 and the second installation section 24, and facilitate installation and fixation of the connection pipe. The first installation section 22 and the second installation section 24 enable the periphery of the valve core seat 20 to form a step-shaped structure, the first assembly surface 23 is a small-diameter section of the outer surface of the valve core seat 20, the outer peripheral surface of the second installation section 24 is a large-diameter section of the outer surface of the valve core seat 20, and the small-diameter section and the large-diameter section are coaxially arranged. The mounting opening of the valve body 10 may be a straight hole to mate with the first mounting section 22 of the valve core seat 20. The end of the first mounting section 22 away from the second mounting section 24 may partially protrude into the valve chamber 11, and the first mounting section 22 is interferingly engaged with the mounting opening to improve the stability of the valve core seat 20.
Referring to fig. 3, 4 and 5, in an embodiment, the valve core seat 20 further includes a third installation section 26, the third installation section 26 is disposed between the first installation section 22 and the second installation section 24, an outer diameter of the third installation section 26 is greater than an outer diameter of the second installation section 24, the first installation section 22, the third installation section 26 and the second installation section 24 are sequentially disposed, so that an outer circumference of the valve core seat 20 forms a plurality of outer circumferential surfaces with different outer diameters, a third assembling surface 27 is formed between the third installation section 26 and the first installation section 22, and the third assembling surface 27 is disposed toward an outer surface of the valve body 10. The third fitting surface 27 may be attached to the outer surface of the valve body 10 to limit the installation position of the valve core seat 20 by the third fitting surface 27, and when the third fitting surface 27 abuts against the outer surface of the valve body 10, the first installation section 22 reaches the maximum installation depth. The third mounting surface 27 may abut against the outer surface of the valve body 10 to seal the third mounting section 26 and the valve body 10. When the third assembling surface 27 is attached to the outer surface of the valve body 10, the valve core seat 20 can be limited by the third assembling surface 27, so that the valve core seat 20 and the mounting hole of the valve body 10 are in a coaxial state, and the coaxiality of the valve port 21 on the valve core seat 20 and the valve body 10 can be further improved.
Due to the difference in outer diameter between the first mounting section 22 and the second mounting section 24, a second mounting surface 25 is formed between the second mounting section 24 and the third mounting section 26, and the second mounting surface 25 is disposed opposite to the outer surface of the valve body 10. The second assembling surface 25 may be an annular plane perpendicular to the axial direction of the valve core seat 20, and the first connecting end of the connection pipe 30 abuts against the second assembling surface 25, so that the connection pipe 30 is limited by the second assembling surface 25.
Further optionally, one end of the third mounting section 26 close to the valve body 10 is provided with a fillet or a chamfer so that an opening is formed between the third mounting section 26 and the valve body 10, and one end of the third mounting section 26 close to the valve body 10 is welded and fixed after being melted by at least a part of a welding ring 40 clamped in the opening. The welding ring 40 is annularly sleeved on the periphery of the valve core seat 20, and at least part of the welding ring 40 is clamped in the opening so as to limit the welding ring 40 through the opening. When the welding ring 40 is melted, the welding material can be filled in the opening, and part of the welding material can enter the gap between the valve body and the third assembling surface 27, thereby achieving the sealing effect. By connecting the valve body and the third mounting section 26 after the welding ring 40 is melted, the welding ring 40 is melted to form an annular crater, and good fixing and sealing effects can be achieved on the connecting position of the third mounting section 26 and the valve body 10.
As shown in fig. 3 and 4, the maximum outer circumferential diameter D3 of the valve body 10 may be larger than the maximum outer circumferential diameter of the weld ring 40, and a crater formed after the weld ring 40 is melted can be filled in the opening, so that the outer circumferential diameter of the crater formed can be smaller than the maximum outer circumferential diameter of the valve body 10. The maximum outer circumferential diameter of the weld ring 40 may be greater than the maximum outer circumferential diameter D5 of the third mounting section 26. The connection pipe 30 may be sleeved on the outer circumference of the second installation section 24, and the outer diameter of the second installation section 24 is equal to the inner diameter D2 of the connection pipe 30, wherein D5 > D2 > D1.
In an embodiment, the connection pipe 30 and the valve body 10 are welded to each other, the electronic expansion valve is further provided with a welding ring 40, the welding ring 40 is annularly arranged on the periphery of the connection pipe 30, and the welding ring 40 is respectively connected with the first connection end of the connection pipe 30 and the valve body 10. When the welding ring 40 is melted, the welding material connects the first connection end of the connection pipe 30 and the outer surface of the valve body 10. The first connection end can abut against the outer surface of the valve body 10, and when the welding ring 40 is melted, a welding material can enter a gap between the axial end face of the first connection end and the outer surface of the valve body 10 to fill the welding gap, so that welding defects are reduced. The first connecting end is sleeved on the periphery of the second mounting section 24, and when welding materials enter a gap between the first connecting end and the valve body 10, part of the welding materials can enter the gap between the first connecting end and the second mounting section 24, so that leakage of the gap between the first connecting end and the second mounting section 24 is avoided. The third assembling surface 27 and the valve body 10 have an assembling gap therebetween, and a welding material generated by melting the welding ring 40 can be used for filling the gap between the third assembling surface 27 and the valve body 10, so as to improve the sealing performance of the electronic expansion valve. The welding ring 40 is annularly arranged outside the first connecting end of the connecting pipe 30, an annular welding area is formed at the periphery of the first connecting end when the welding ring 40 is melted, and welding materials are annularly distributed to prevent welding defects from occurring at the connecting part of the first connecting end and the valve body 10.
In order to facilitate the fixing of the connection pipe 30, in an embodiment, the first connection end of the connection pipe 30 is sleeved on the outer periphery of the second installation section 24, and the first connection end of the connection pipe 30 and the valve body 10 are welded and fixed after being melted by the welding ring 40. The outer diameter D4 of the connection pipe 30 may be smaller than the outer diameter D5 of the third installation section 26, so that the welding ring 40 can be limited by the second assembling surface 25 when the welding ring 40 is fixed at the first connection end of the connection pipe 30. The crater generated after the welding ring 40 is melted can serve to connect the adapter tube 30 and the second fitting surface 25.
The utility model also provides an embodiment of a refrigeration device on the basis of the electronic expansion valve.
The refrigeration device comprises an electronic expansion valve as described in any of the above embodiments. The electronic expansion valve is arranged on a system pipeline of the refrigeration equipment and used for controlling the flow of the refrigerant in the system pipeline. The connecting pipe 30 of the electronic expansion valve can be used as a straight pipe of the electronic expansion valve, and the valve body 10 of the electronic expansion valve can also be provided with a side pipe communicated with the valve cavity 11. The straight pipe can be used for inputting the refrigerant, and the refrigerant enters the valve cavity 11 through the connecting pipe 30 and the valve port 21 and is output through the side pipe. The straight pipe can also be used for outputting the refrigerant, and the refrigerant is input into the valve cavity 11 through the side pipe and is output through the valve port 21 and the connecting pipe 30. The inner diameter of the first connecting end of the straight pipe is enlarged to be larger than the outer diameter of the first assembling surface 23 of the valve core seat 20, so that the inner diameter of the first connecting end is larger than the inner diameter of the installing port of the valve body 10, the coaxiality of the connecting pipe 30, the valve core seat 20 and the valve body 10 can be conveniently improved when the connecting pipe 30 and the valve core seat 20 are manufactured and installed, and the coaxiality of the valve needle and the valve core seat 20 can be higher when the valve needle in the electronic expansion valve moves, so that the flow precision of the electronic expansion valve controlled by the valve needle is improved. When the filter device is installed in the electronic expansion valve, the filter device can be inserted into the connection pipe 30 from the first connection end of the connection pipe 30, and thus, it is not necessary to separately provide the filter device in the system pipe of the refrigeration equipment, and thus, the configuration of the system pipe can be simplified. When the refrigeration equipment is maintained, the electronic expansion valves can be maintained in a centralized manner, which is helpful for simplifying the maintenance steps. The refrigeration device may also include other functional components. The electronic expansion valve may further include other functional components for driving the valve needle, and the valve core seat 20 may be mounted on the valve body 10 from the outside to the inside. So as to facilitate the assembly of the electronic expansion valve.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (13)
1. An electronic expansion valve, comprising:
the valve body is provided with a valve cavity;
the valve core seat is arranged on the valve body, and the periphery of the valve core seat is provided with a first assembling surface matched with the valve body; and
the valve core seat is provided with a valve cavity, the valve cavity is communicated with the valve core seat, the valve core seat is provided with a valve port, and the valve port is communicated with the valve cavity.
2. The electronic expansion valve of claim 1, wherein the valve cartridge seat comprises:
the first mounting section is provided with the first assembling surface at the periphery; and
the valve port is arranged in a penetrating mode through the first mounting section and the second mounting section, the outer diameter of the second mounting section is larger than that of the first mounting section, and the second mounting section is connected with the first connecting end of the connecting pipe.
3. The electronic expansion valve of claim 2, wherein the first connection end of the connection pipe is sleeved on the outer circumference of the second installation section.
4. The electronic expansion valve of claim 3, wherein the first connection end of the nipple is in interference fit with the second mounting section.
5. The electronic expansion valve of claim 2, wherein the first mounting section is an interference fit with the valve body.
6. The electronic expansion valve of claim 2, wherein the valve cartridge seat further comprises:
the third installation section is arranged between the first installation section and the second installation section, the outer diameter of the third installation section is larger than that of the second installation section, a third assembly surface is formed between the third installation section and the first installation section, and the third assembly surface faces the outer surface of the valve body.
7. The electronic expansion valve according to claim 6, wherein a fillet or a chamfer is provided at an end of the third mounting section close to the valve body, so as to form an opening between the third mounting section and the valve body, and the end of the third mounting section close to the valve body is welded and fixed by a welding ring at least partially clamped in the opening after being melted.
8. The electronic expansion valve according to claim 6, wherein the first connection end of the connection pipe is sleeved on the outer periphery of the second mounting section, a second mounting surface is formed between the second mounting section and the third mounting section, and the first connection end of the connection pipe abuts against the second mounting surface.
9. The electronic expansion valve according to claim 8, wherein the first connection end of the connection pipe and the valve body are welded and fixed by melting a welding ring.
10. The electronic expansion valve of claim 9, wherein an outer diameter of the nipple is smaller than an outer diameter of the third mounting section.
11. The electronic expansion valve according to any one of claims 1 to 10, wherein the first connection end of the nipple has an inner diameter of not less than 8 mm.
12. An electronic expansion valve according to any of claims 1 to 10, wherein the nipple is provided with filtering means.
13. Refrigeration device, characterized in that it comprises an electronic expansion valve according to any of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121713184.8U CN215635281U (en) | 2021-07-26 | 2021-07-26 | Electronic expansion valve and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121713184.8U CN215635281U (en) | 2021-07-26 | 2021-07-26 | Electronic expansion valve and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215635281U true CN215635281U (en) | 2022-01-25 |
Family
ID=79892498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121713184.8U Active CN215635281U (en) | 2021-07-26 | 2021-07-26 | Electronic expansion valve and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215635281U (en) |
-
2021
- 2021-07-26 CN CN202121713184.8U patent/CN215635281U/en active Active
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