CN217784259U - Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment - Google Patents
Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment Download PDFInfo
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- CN217784259U CN217784259U CN202221963131.6U CN202221963131U CN217784259U CN 217784259 U CN217784259 U CN 217784259U CN 202221963131 U CN202221963131 U CN 202221963131U CN 217784259 U CN217784259 U CN 217784259U
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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
The utility model discloses an electronic expansion valve component, an electronic expansion valve and a refrigeration device, wherein the electronic expansion valve component is used for being installed on a valve seat of the electronic expansion valve and comprises a connecting seat, a first sealing element and a second sealing element; the first sealing element is arranged at the lower end of the connecting seat and is used for being matched with the inner wall of the valve seat; the second sealing element is arranged at the upper end of the connecting seat and is used for matching with the inner wall of the valve seat; wherein, the connecting seat is provided with a channel. The utility model provides an electron expansion valve subassembly, connecting seat have inside and outside seal groove (first recess and second recess), and the outer leakage problem of valve body can effectively be solved to external sealing spare (second sealing member), and the internal leakage problem of valve body can effectively be solved to internal sealing spare (first sealing member), and product reliability is higher. The utility model discloses technical scheme's electronic expansion valve subassembly, inside and outside sealing member set up on same part is the connecting seat, and the axiality can effectively be guaranteed, and then ensures to prevent inside and outside hourglass performance.
Description
Technical Field
The utility model relates to a fluid control part technical field, in particular to electronic expansion valve subassembly, electronic expansion valve and refrigeration plant.
Background
The electronic expansion valve is an important part in a refrigeration system and mainly plays roles in throttling, reducing pressure and regulating flow. In the related art, the electronic expansion valve comprises a valve seat assembly, a nut assembly, a valve core assembly, a magnetic rotor assembly and other components, wherein the valve port assembly is arranged in the valve seat assembly, a valve port is formed in the valve port assembly, and when the electronic expansion valve works, the magnetic rotor assembly is driven to rotate by an electrified coil surrounding the outside of the valve shell so as to drive the valve core assembly to move axially and further control the opening or closing of the valve port, thereby realizing the functions of throttling, reducing pressure and regulating flow. The valve seat and the valve core assembly are usually connected with the guide sleeve through the connecting seat, and the guide sleeve and the connecting seat are respectively provided with the sealing piece, so that the sealing effect is poor, and the electronic expansion valve is easy to leak when in use.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing an electronic expansion valve subassembly, electronic expansion valve and refrigeration plant, aim at solving the problem of electronic expansion valve internal leakage and external leakage.
In order to achieve the above object, the utility model provides an electronic expansion valve subassembly for install on electronic expansion valve's disk seat, the electronic expansion valve subassembly includes:
a connecting seat;
the first sealing element is arranged at the lower end of the connecting seat and is used for being matched with the inner wall of the valve seat; and
the second sealing element is arranged at the upper end of the connecting seat and is used for being matched with the inner wall of the valve seat;
wherein, the connecting seat is provided with a channel.
In an embodiment, the connecting seat is provided with a first groove, and the first sealing element is arranged in the first groove; and/or the connecting seat is provided with a second groove, and the second sealing element is arranged in the second groove.
In an embodiment, the connecting seat includes a positioning section and a guiding section connected to the positioning section, the first groove is disposed at an end of the guiding section away from the positioning section, and the second groove is disposed at an end of the guiding section close to the positioning section.
In an embodiment, the electronic expansion valve assembly further includes a valve port assembly disposed at an end of the guiding section away from the positioning section, and the valve port assembly has a valve port, and the valve port can be communicated with the channel.
In one embodiment, the valve port component is integrally formed with the connecting seat.
In an embodiment, the valve port assembly is made of a non-metallic material, the electronic expansion valve assembly further includes a gasket, the gasket is fixedly connected to one end of the guiding section, which is far away from the positioning section, and the valve port assembly is disposed between the gasket and the guiding section.
In an embodiment, the electronic expansion valve assembly further includes a valve core assembly, the valve core assembly is movably disposed on the guide section, and the valve core assembly is used for connecting or blocking the channel with the valve port.
In one embodiment, the valve core assembly is provided with a third groove, and the third groove is provided with a third sealing element.
In one embodiment, the electronic expansion valve assembly further comprises a valve housing, wherein the valve housing is sleeved outside the valve core assembly and connected to the positioning section.
The utility model discloses still provide an electronic expansion valve, electronic expansion valve includes:
a valve seat; and
an electronic expansion valve assembly as in any of the previous embodiments, mounted to the valve seat.
The utility model discloses still provide a refrigeration plant, refrigeration plant includes as above an embodiment electronic expansion valve.
The utility model discloses an electronic expansion valve subassembly of technical scheme for install on electronic expansion valve's valve seat, electronic expansion valve subassembly includes connecting seat, first sealing member and second sealing member; the first sealing element is arranged at the lower end of the connecting seat and is used for being matched with the inner wall of the valve seat; the second sealing element is arranged at the upper end of the connecting seat and is used for being matched with the inner wall of the valve seat; wherein, the connecting seat is provided with a channel. The utility model provides an electronic expansion valve subassembly, connecting seat have inside and outside seal groove (first recess and second recess), and the outer leakage problem of valve body can effectively be solved to outer sealing (second sealing member), and the internal leakage problem of valve body can effectively be solved to internal sealing (first sealing member), and product reliability is higher. The utility model discloses technical scheme's electronic expansion valve subassembly, inside and outside sealing member set up on same part is the connecting seat, and the axiality can effectively be guaranteed, and then ensures to prevent inside and outside hourglass performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 embodiment of an electronic expansion valve assembly according to the present invention;
fig. 2 is a schematic structural view of an embodiment of the electronic expansion valve of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
fig. 4 is a schematic view of a valve seat structure of an embodiment of the electronic expansion valve of the present invention;
fig. 5 is a schematic view of a part of the structure of an embodiment of the electronic expansion valve of the present invention;
fig. 6 is a schematic view of a connecting seat structure of an embodiment of the electronic expansion valve of the present invention;
fig. 7 is a schematic structural view of a valve core assembly according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
500 | |
| 100 | |
510 | Valve |
| 130 | |
600 | |
| 140 | |
700 | Valve |
| 200 | Connecting |
710 | Valve |
| 210 | |
711 | |
| 220 | |
712 | |
| 221 | The |
720 | Valve |
| 222 | |
730 | |
| 230 | Through |
810 | |
| 300 | |
900 | Valve |
| 400 | |
910 | Containing cavity |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
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 efforts belong to 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 position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments 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, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The electronic expansion valve 10 is an important component of a refrigeration system and mainly plays roles in throttling and depressurizing and regulating flow. In the related art, the electronic expansion valve 10 includes a valve seat assembly, a nut assembly 800, a valve core assembly 700, a magnetic rotor assembly, and other components, a valve port assembly 500 is disposed in the valve seat assembly, a valve port 510 is disposed on the valve port assembly 500, and when the electronic expansion valve 10 works, the magnetic rotor assembly is driven to rotate by an electrified coil surrounding the valve housing 900, so as to drive the valve core assembly 700 to move axially, and further control the opening or closing of the valve port 510, thereby achieving the functions of throttling, depressurizing, and regulating flow. The valve seat 100 and the valve core assembly 700 of the conventional electronic expansion valve 10 are usually connected to a guide sleeve through a connecting seat 200, and the guide sleeve and the connecting seat 200 are respectively provided with a sealing member, so that the sealing effect is poor, and the electronic expansion valve 10 is prone to leakage when in use. The utility model provides an electronic expansion valve 10, connecting seat 200 have inside and outside seal groove (first recess 221 and second recess 222), and the outer leakage problem of valve body can effectively be solved to outer sealing member (second sealing member 400), and the internal leakage problem of valve body can effectively be solved to inner sealing member (first sealing member 300), and product reliability is higher. The utility model discloses technical scheme's electronic expansion valve 10, inside and outside sealing member set up on same part is connecting seat 200, and the axiality can effectively be guaranteed, and then ensures to prevent inside and outside hourglass performance.
The utility model provides an electronic expansion valve 10 can use in automobile-used refrigerating system, and the fluid medium that flows through electronic expansion valve 10 is the refrigerant that is used for carrying on cold and hot exchange among the automobile-used refrigerating system. At this time, the electronic expansion valve 10 is installed at an inlet of an evaporator of the vehicle refrigeration system, and the electronic expansion valve 10 serves as a boundary element between a high-pressure side and a low-pressure side of the vehicle refrigeration system to throttle and depressurize the high-pressure liquid refrigerant, so that the dosage of the liquid refrigerant entering the evaporator is adjusted and controlled, and the dosage of the liquid refrigerant can meet the requirement of an external refrigeration load. Alternatively, the electronic expansion valve 10 is applied to other types of refrigeration equipment, and the fluid medium flowing through the electronic expansion valve 10 may also be another fluid medium other than the refrigerant, as long as the electronic expansion valve 10 can throttle and depressurize the fluid medium, which is not particularly limited.
The utility model provides an electronic expansion valve subassembly for install on electronic expansion valve 10's disk seat 100, this electronic expansion valve subassembly includes connecting seat 200, first sealing member 300 and second sealing member 400. Referring to fig. 1, in an embodiment of the present invention, a first sealing member 300 is disposed at a lower end of the connecting seat 200 for engaging with an inner wall of the valve seat 100; the second sealing member 400 is disposed at the upper end of the connecting seat 200 to be engaged with the inner wall of the valve seat 100; wherein the connection socket 200 is provided with a passage.
It can be understood that, referring to fig. 2, the valve seat 100 has a first port 130 and a second port 140, and when the electronic expansion valve assembly is mounted on the valve seat 100, the first port 130 and the second port 140 can be communicated through a channel of the connecting seat 200, specifically, the connecting seat 200 is hollow, and the side wall is provided with at least one through hole 230, and the through hole 230 can be communicated with the inner space and the outer space of the connecting seat 200. The first and second sealing members 300 and 400 may be sealing rings made of an elastic material such as rubber or silicone. Taking the first port 130 as a refrigerant inlet as an example, the first sealing element 300 is disposed at the lower end of the connecting seat 200, and is in interference fit with both the outer wall of the connecting seat 200 and the inner wall of the valve seat 100, so as to effectively prevent the refrigerant flowing from the first port 130 from flowing to the second port 140 through the gap between the connecting seat 200 and the valve seat 100, thereby solving the problem of internal leakage of the electronic expansion valve 10; the second sealing member 400 is disposed at the upper end of the connection seat 200, and is in interference fit with both the outer wall of the connection seat 200 and the inner wall of the valve seat 100, so as to effectively prevent the refrigerant flowing from the first port 130 from flowing to the outside of the electronic expansion valve 10 through the gap between the connection seat 200 and the valve seat 100, thereby solving the problem of external leakage of the electronic expansion valve 10. Moreover, the first sealing element 300 and the second sealing element 400 are arranged on the same part, namely the connecting seat 200, the coaxiality can be effectively ensured, and the inner and outer leakage prevention performance is ensured.
The electronic expansion valve assembly of the present embodiment is adapted to be mounted on the valve seat 100 of the electronic expansion valve 10, and includes a connecting seat 200, a first sealing member 300, and a second sealing member 400. The first sealing member 300 is disposed at the lower end of the coupling seat 200 to be engaged with the inner wall of the valve seat 100; the second sealing member 400 is disposed at the upper end of the connecting seat 200 to be engaged with the inner wall of the valve seat 100; wherein the connection socket 200 is provided with a passage. In the electronic expansion valve assembly of the present embodiment, the connecting seat 200 has inner and outer sealing grooves (the first groove 221 and the second groove 222), the outer sealing member (the second sealing member 400) can effectively solve the outer leakage problem of the valve body, the inner sealing member (the first sealing member 300) can effectively solve the inner leakage problem of the valve body, and the product reliability is higher. In the electronic expansion valve assembly of the embodiment, the inner sealing element and the outer sealing element are arranged on the same part, namely the connecting seat 200, the coaxiality can be effectively ensured, and the inner and outer leakage prevention performance is further ensured.
Referring to fig. 1, 5 and 6, in an embodiment of the present invention, the connecting seat 200 is formed with a first groove 221, and the first sealing element 300 is disposed in the first groove 221; and/or the connecting seat 200 is provided with a second groove 222, and the second sealing element 400 is arranged in the second groove 222. It can be understood that the first groove 221 formed on the connecting seat 200 can perform a better limiting function on the first sealing element 300, and the connecting seat 200 can be tightly matched with the inner wall of the valve seat 100, so as to improve the stability of the product; in a similar way, the second groove 222 is formed in the connecting seat 200, so that the second sealing element 400 can be well limited, and the stability of the product is further improved.
Referring to fig. 1, fig. 2, fig. 5 and fig. 6, in an embodiment of the present invention, the connecting seat 200 includes a positioning section 210 and a guiding section 220 connected to the positioning section 210, the first groove 221 is disposed at an end of the guiding section 220 far from the positioning section 210, and the second groove 222 is disposed at an end of the guiding section 220 close to the positioning section 210. In this embodiment, specifically, the outer wall of the positioning section 210 is provided with threads, and the inner wall of one end of the valve seat 100 is provided with threads, so that when the electronic expansion valve assembly is mounted on the valve seat 100, the outer wall of the positioning section 210 is in threaded fit connection with the inner wall of the valve seat 100. In other embodiments, the positioning section 210 and the port 110 may also be fixedly connected by welding or riveting, which is not limited herein. The first groove 221 is arranged at one end of the guide section 220 far away from the positioning section 210, that is, one end of the guide section 220 close to the second port 140, the first sealing member 300 is arranged in the first groove 221, and when the electronic expansion valve assembly is mounted on the valve seat 100, the first sealing member 300 is in interference fit with the groove bottom of the first groove 221 and the inner wall of the valve seat 100 respectively; the second groove 222 is disposed at one end of the guiding section 220 close to the positioning section 210, and the second sealing member 400 is disposed in the second groove 222, such that when the electronic expansion valve assembly is mounted on the valve seat 100, the second sealing member 400 is in interference fit with the groove bottom of the second groove 222 and the inner wall of the valve seat 100, respectively, so as to block the inner space and the outer space of the valve seat 100. The second groove 222 is disposed on the guiding portion 220, and the positioning portion 210 does not need to be disposed at a free position to accommodate the second sealing member 400, so that the connection between the positioning portion 210 and the valve seat 100 can be more stable.
Referring to fig. 1, in an embodiment of the present invention, the electronic expansion valve assembly further includes a valve port assembly 500, the valve port assembly 500 is disposed at an end of the guiding section 220 away from the positioning section 210, the valve port assembly 500 has a valve port 510, and the valve port 510 is communicated with the channel. In this embodiment, the valve port assembly 500 and the connecting seat 200 may be integrally formed or may be designed separately. The valve port assembly 500 is disposed at one end of the guiding section 220 away from the positioning section 210, and the channel of the connecting seat 200 is communicated with the second port 140 through the valve port 510, so that the refrigerant can flow into the channel from the first port 130, pass through the valve port 510, and then flow out from the second port 140; on the contrary, the refrigerant flows in from the second port 140, enters the channel through the valve port 510, and then flows out from the first port 130.
In an embodiment of the present invention, the valve port assembly 500 is integrally formed with the connecting seat 200. It is understood that, in the present embodiment, the valve port assembly 500 and the connecting seat 200 are made of metal and are integrally formed. Preferably, the material is aluminum with light weight, which can reduce the weight of the electronic expansion valve assembly.
Referring to fig. 1, in an embodiment of the present invention, the valve port assembly 500 is made of a non-metal material, the electronic expansion valve assembly further includes a gasket 600, the gasket 600 is fixedly connected to an end of the guiding section 220 far away from the positioning section 210, and the valve port assembly 500 is disposed between the gasket 600 and the guiding section 220. In this embodiment, the valve port assembly 500 and the connecting seat 200 are designed separately, which is beneficial to the processing of the valve port assembly 500 and the connecting seat 200 and reduces the processing difficulty. When the electronic expansion valve 10 is closed, the valve head 710 of the valve core assembly 700 is tightly fitted with the valve port assembly 500 to block the channel from the valve port 510, the valve port assembly 500 is made of a non-metallic material, such as PP, PC, or rubber, so that the valve port assembly 500 has a lower hardness than the valve head 710, and a soft fit can be formed between the two, thereby providing a better sealing property. The gasket 600 is made of metal and is fixedly connected to the guide section 220 in a welding or riveting manner, and the valve port assembly 500 is embedded between the guide section 220 and the gasket 600.
Referring to fig. 1, in an embodiment of the present invention, the electronic expansion valve assembly further includes a valve core assembly 700, the valve core assembly 700 is movably disposed on the guiding section 220, and the valve core assembly 700 is used for connecting or blocking the channel with the valve port 510. It will be appreciated that the guide section 220 serves to guide the movement of the valve core assembly 700. Specifically, the valve core assembly 700 is movably disposed on the valve seat 100 and passes through the guide section 220 of the connecting seat 200 to conduct or block a channel with the valve port 510, so as to open or close the electronic expansion valve 10. Specifically, referring to fig. 1, 2 and 7, the electronic expansion valve assembly further includes a nut 810, the valve core assembly 700 includes a valve head 710 and a valve stem 720, the valve stem 720 is rotatably connected to the valve head 710 and is in threaded engagement with the nut 810, and the valve head 710 extends into the guide section 220 and is in guide engagement with the guide section 220; when the valve rod 720 is rotated, the valve rod 720 can drive the valve head 710 to move up and down relative to the guide section 220. It is understood that the valve stem 720 is connected to the valve head 710 through the bearing 730, the nut 810 is in threaded engagement with the valve stem 720, when the valve stem 720 is driven by the power source to rotate, the valve stem 720 can move up and down relative to the nut 810, and the valve head 710 is driven by the valve stem 720 to move up and down relative to the connecting base 200, so as to be close to or far away from the valve port 510. When the valve head 710 is tightly fitted with the valve port assembly 500, the passage is blocked by the valve head 710, so that the fluid medium in the electronic expansion valve assembly is blocked from being discharged outwards through the valve port 510; when the valve head 710 is separated from the valve port assembly 500, the channel is communicated with the valve port 510, and the fluid medium in the electronic expansion valve assembly can be discharged through the valve port 510.
Referring to fig. 3 and 7, in an embodiment of the present invention, the valve core assembly 700 is provided with a third groove 711, and the third groove 711 is provided with a third sealing member 712. Specifically, a third seal 712 is provided at the engagement of the valve head 710 and the guide section 220. To improve the performance of the valve core assembly 700, the present embodiment provides a balance hole in the valve head 710 of the valve core assembly 700 to balance the pressure difference inside the valve. When the electronic expansion valve assembly is in a closed state, the third sealing element 712 is disposed at the fitting position of the valve head 710 and the guide section 220, so that the fluid medium is prevented from passing through the fitting position of the valve head 710 and the guide section 220, entering the interior of the valve head 710 through the balancing hole, and then flowing out of the valve port 510, and causing internal leakage. The third sealing element 712 may be a silicone sealing ring or a rubber sealing ring, and since the valve head 710 needs to perform reciprocating movement, in order to avoid the third sealing element 712 being worn, an abrasion-resistant layer may be disposed on an outer side surface of the third sealing element 712, so that the abrasion-resistant layer is in contact with the guide section 220, and when the valve core assembly 700 moves, the third sealing element 712 is not rubbed, so as to ensure the sealing performance of the third sealing element 712. The material of the wear layer is various, and in one embodiment, the material of the wear layer 501 is polytetrafluoroethylene. Polytetrafluoroethylene (PTFE for short) is a high molecular polymer prepared by polymerizing tetrafluoroethylene as a monomer, has excellent heat resistance and cold resistance, and can be used for a long time at the temperature of between 110 ℃ below zero and 260 ℃. The teflon has a very low friction coefficient, and plays a role in lubrication, so that the frictional resistance between the guide section 220 and the third seal 712 is reduced, the third seal 712 is prevented from being damaged due to friction with the guide section 220, and the service life of the third seal 712 is prolonged.
Referring to fig. 1, in an embodiment of the present invention, the electronic expansion valve assembly further includes a valve housing 900, the valve housing 900 is disposed outside the valve core assembly 700 and connected to the positioning section 210. In particular, the valve housing 900 is substantially cylindrical in design, and the valve housing 900 and the connection base 200 may be fixed by welding. Valve casing 900's inside is formed with and holds chamber 910, holds in chamber 910 except that valve stem 720, still holds nut 810 and rotor subassembly, and the rotor subassembly is connected with valve stem 720, and valve stem 720 is rotatory under the drive of rotor subassembly, thereby valve stem 720 and nut 810 screw-thread fit convert rotary motion into and reciprocate, and then drive valve head 710 and reciprocate in guide section 220.
Referring to fig. 2 and 4, the present invention further provides an electronic expansion valve 10, which includes a valve seat 100, and an electronic expansion valve assembly according to any of the above embodiments, the electronic expansion valve assembly being mounted on the valve seat 100.
It is understood that the valve seat 100 may be a stand-alone valve seat, and that the valve seat 100 may also be an integrated module such as a valve island. The valve seat 100 serves as a carrier for mounting the various components of the electronic expansion valve 10 so that the various components may be assembled as a unit. Specifically, the valve seat 100 may have a cylindrical structure so that the shape thereof is regular and the valve seat is easy to machine, and the valve seat 100 is made of a metal aluminum material so that the electronic expansion valve 10 can be light-weighted. Of course, in other embodiments, the valve seat 100 may also have a square structure or other shapes, and may be made of other materials, which are not listed here. The specific structure of the electronic expansion valve assembly refers to the above embodiments, and since the electronic expansion valve 10 adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The working principle of the electronic expansion valve 10 is as follows:
after a stator assembly of the electronic expansion valve 10 is powered on, a magnetic field is generated, a rotor assembly made of a magnetic material rotates under the driving of the magnetic field, the rotor assembly is fixedly connected with the valve rod 720, the rotation of the rotor assembly drives the valve rod 720 to rotate, a thread matching relation is formed between the valve rod 720 and the nut 810, and the nut 810 is fixedly arranged on the connecting seat 200, so that the valve rod 720 can be driven to move up and down relative to the nut 810 by the rotation of the valve rod 720 relative to the nut 810, the stator assembly drives the rotor assembly to move, and the rotor assembly drives the valve core assembly 700 to move; the valve head 710 moves towards the valve port 510 under the driving of the valve rod 720, and when the valve head 710 blocks the channel from the valve port 510, the electronic expansion valve 10 is closed; when the valve head 710 releases the sealing of the channel, that is, the channel and the valve port 510 are communicated with each other, the electronic expansion valve 10 is opened, and the opening aperture of the channel in the electronic expansion valve 10 is relatively small, so that the flow volume of the fluid medium is reduced, and the throttling and pressure reduction process of the electronic expansion valve 10 on the fluid medium is realized.
The utility model also provides a refrigeration plant, including the last embodiment electronic expansion valve 10. The refrigeration system may be a refrigeration system of an air conditioner, a freezer, a refrigerator, a heat pump water heater or other refrigeration and heating equipment, and the electronic expansion valve 10 can control the flow rate of a refrigeration medium in the refrigeration system. The specific structure of the electronic expansion valve 10 refers to the above embodiments, and since the refrigeration device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (11)
1. An electronic expansion valve assembly for mounting on a valve seat of an electronic expansion valve, the electronic expansion valve assembly comprising:
a connecting seat;
the first sealing element is arranged at the lower end of the connecting seat and is used for being matched with the inner wall of the valve seat; and
the second sealing element is arranged at the upper end of the connecting seat and is used for being matched with the inner wall of the valve seat;
wherein, the connecting seat is provided with a channel.
2. The electronic expansion valve assembly as claimed in claim 1, wherein said connecting seat defines a first groove, and said first sealing member is disposed in said first groove; and/or the connecting seat is provided with a second groove, and the second sealing element is arranged in the second groove.
3. The electronic expansion valve assembly as claimed in claim 2, wherein said connecting seat comprises a positioning section and a guiding section connected to said positioning section, said first recess is provided at an end of said guiding section far from said positioning section, and said second recess is provided at an end of said guiding section near to said positioning section.
4. The electronic expansion valve assembly as recited in claim 3, further comprising a valve port assembly disposed at an end of the guide section remote from the positioning section, the valve port assembly having a valve port that is communicable with the passage.
5. The electronic expansion valve assembly of claim 4, wherein the valve port assembly is integrally formed with the attachment base.
6. The electronic expansion valve assembly as recited in claim 4, wherein said valve port assembly is made of a non-metallic material, said electronic expansion valve assembly further comprising a gasket, said gasket is fixedly connected to an end of said guiding segment away from said positioning segment, and said valve port assembly is disposed between said gasket and said guiding segment.
7. The electronic expansion valve assembly of claim 4, further comprising a valve core assembly movably disposed at the guide section, wherein the valve core assembly is configured to open or close the channel from the valve port.
8. The electronic expansion valve assembly of claim 7, wherein the spool assembly is provided with a third groove, the third groove being provided with a third seal.
9. The electronic expansion valve assembly of claim 7, further comprising a valve housing that is disposed about the valve core assembly and is coupled to the positioning section.
10. An electronic expansion valve, comprising:
a valve seat; and
an electronic expansion valve assembly as claimed in any of claims 1 to 9, mounted to said valve seat.
11. A refrigeration appliance comprising an electronic expansion valve as claimed in claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221963131.6U CN217784259U (en) | 2022-07-27 | 2022-07-27 | Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221963131.6U CN217784259U (en) | 2022-07-27 | 2022-07-27 | Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment |
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| CN217784259U true CN217784259U (en) | 2022-11-11 |
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| CN202221963131.6U Active CN217784259U (en) | 2022-07-27 | 2022-07-27 | Electronic expansion valve assembly, electronic expansion valve and refrigeration equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021870A1 (en) * | 2022-07-27 | 2024-02-01 | 广东威灵电机制造有限公司 | Electronic expansion valve assembly, electronic expansion valve and refrigeration apparatus |
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2022
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024021870A1 (en) * | 2022-07-27 | 2024-02-01 | 广东威灵电机制造有限公司 | Electronic expansion valve assembly, electronic expansion valve and refrigeration apparatus |
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