CN216812903U - Electronic expansion valve, refrigerating system and automobile - Google Patents
Electronic expansion valve, refrigerating system and automobile Download PDFInfo
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- CN216812903U CN216812903U CN202220165676.6U CN202220165676U CN216812903U CN 216812903 U CN216812903 U CN 216812903U CN 202220165676 U CN202220165676 U CN 202220165676U CN 216812903 U CN216812903 U CN 216812903U
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- 238000007789 sealing Methods 0.000 claims abstract description 116
- 238000005057 refrigeration Methods 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 241000238631 Hexapoda Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000256626 Pterygota <winged insects> Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses an electronic expansion valve, a refrigeration system and an automobile, wherein the electronic expansion valve comprises a valve seat, a valve body assembly, a stator assembly and a sealing structure, and the valve seat is provided with a valve cavity and an installation opening communicated with the valve cavity; the valve body assembly is arranged in the valve cavity, and one end of the valve body assembly extends out of the mounting opening; the stator component is sleeved at one end of the valve body component and is detachably connected with the valve seat; the stator assembly is used for driving the valve body assembly to move, the stator assembly is provided with a first end face abutted with the valve seat, and the valve seat is provided with a second end face matched with the first end face; the sealing structure is arranged between the first end face and the second end face so as to seal a gap between the stator assembly and the valve body. The technical scheme of the utility model reduces the volume of the electronic expansion valve.
Description
Technical Field
The utility model relates to the technical field of electronic expansion valves, in particular to an electronic expansion valve, a refrigeration system and an automobile.
Background
In the related art, a sealing structure is arranged between a valve body assembly and a stator assembly of the electronic expansion valve, and the sealing structure is arranged on the valve body assembly or the stator assembly, so that the height of the valve body assembly or the stator assembly is increased, the whole volume of the electronic expansion valve is increased, and the miniaturization of the electronic expansion valve is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an electronic expansion valve, a refrigeration system and an automobile, aiming at reducing the volume of the electronic expansion valve.
In order to achieve the purpose, the electronic expansion valve provided by the utility model comprises a valve seat, a valve body assembly, a stator assembly and a sealing structure, wherein the valve seat is provided with a valve cavity and a mounting opening communicated with the valve cavity; the valve body assembly is arranged in the valve cavity, and one end of the valve body assembly extends out of the mounting opening; the stator component is sleeved at one end of the valve body component and is detachably connected with the valve seat; the stator assembly is used for driving the valve body assembly to move, the stator assembly is provided with a first end surface abutted with the valve seat, and the valve seat is provided with a second end surface matched with the first end surface; the sealing structure is arranged between the first end face and the second end face to seal a gap between the stator assembly and the valve body.
In one embodiment, the sealing structure is an annular structure and extends along the periphery of the mounting opening.
In one embodiment, the sealing structure is a sealing ring or a sealing gasket.
In one embodiment, the sealing ring comprises a first sealing part and a second sealing part connected with one end of the first sealing part, the other end of the first sealing part is provided with a first supporting groove in flaring arrangement, and the groove wall of the first supporting groove is used for being in sealing abutment with the first end face; and/or the second sealing part is provided with a second support groove which is arranged in a flaring manner, and the groove wall of the second support groove is used for being in sealing and abutting joint with the second end face.
In an embodiment, the first sealing portion includes a first cantilever and a second cantilever, each of the first cantilever and the second cantilever having a first end and a second end opposite to each other in the axial direction, and a distance between the first cantilever and the second cantilever is gradually increased from the first end to the second end to form the first supporting groove; and/or the second sealing part comprises a third cantilever and a fourth cantilever, the third cantilever and the fourth cantilever are respectively provided with a third end and a fourth end which are opposite along the axial direction, and the distance between the third cantilever and the fourth cantilever is gradually increased from the third end to the fourth end so as to form the second supporting groove.
In one embodiment, the sealing gasket is partially bent in an axial direction to form a ridge facing the first end face or the second end face.
In one embodiment, the sealing structure is spaced from the valve body assembly.
In one embodiment, the stator assembly or the valve body assembly is provided with a sealing groove for accommodating the sealing structure.
In an embodiment, the stator assembly includes a housing and a coil assembly, the coil assembly is installed in the housing, the housing is sleeved on one end of the valve body assembly, and the housing has the first end surface abutting against the valve seat.
In one embodiment, the valve body assembly comprises a connecting seat, a valve core seat and a valve core assembly, wherein the connecting seat is arranged in the valve cavity, and the valve core seat is provided with a valve core cavity and a valve port communicated with the valve core cavity; the valve core seat is positioned at one end of the connecting seat, which is back to the mounting port, and the connecting seat is provided with a guide hole communicated with the valve core cavity; the valve core assembly is arranged on the connecting seat and can reciprocate along the guide hole and the valve core cavity so as to close or open the valve port.
The utility model also provides a refrigeration system, which comprises an electronic expansion valve, wherein the electronic expansion valve comprises a valve seat, a valve body assembly, a stator assembly and a sealing structure, and the valve seat is provided with a valve cavity and an installation opening communicated with the valve cavity; the valve body assembly is arranged in the valve cavity, and one end of the valve body assembly extends out of the mounting opening; the stator component is sleeved at one end of the valve body component and is detachably connected with the valve seat; the stator assembly is used for driving the valve body assembly to move, the stator assembly is provided with a first end surface abutted with the valve seat, and the valve seat is provided with a second end surface matched with the first end surface; the sealing structure is arranged between the first end face and the second end face to seal a gap between the stator assembly and the valve body.
The utility model also provides an automobile which comprises a refrigeration system, wherein the refrigeration system comprises an electronic expansion valve, the electronic expansion valve comprises a valve seat, a valve body assembly, a stator assembly and a sealing structure, and the valve seat is provided with a valve cavity and a mounting opening communicated with the valve cavity; the valve body assembly is arranged in the valve cavity, and one end of the valve body assembly extends out of the mounting opening; the stator component is sleeved at one end of the valve body component and is detachably connected with the valve seat; the stator assembly is used for driving the valve body assembly to move, the stator assembly is provided with a first end surface abutted with the valve seat, and the valve seat is provided with a second end surface matched with the first end surface; the sealing structure is arranged between the first end face and the second end face to seal a gap between the stator assembly and the valve body.
According to the technical scheme, the valve body assembly is installed in the valve cavity, one end of the valve body assembly extends outwards from the installation opening, and the stator assembly is sleeved on the periphery of the valve body assembly and is detachably connected with the valve seat. The sealing structure is arranged between the first end surface of the stator assembly and the second end surface of the valve seat, so that a gap between the valve seat and the stator assembly is sealed, and liquid in the external environment is prevented from flowing into the valve body assembly from the gap between the valve seat and the stator assembly. The sealing structure plays a role in sealing, seals a gap between the valve seat and the stator assembly, and improves the waterproof performance of the electronic expansion valve.
Meanwhile, the sealing structure is not arranged between the valve body assembly and the stator assembly, and the sealing structure is placed without increasing the length of the valve body assembly or the stator assembly, so that the length of the valve body assembly or the stator assembly is reduced, the overall size and weight of the electronic expansion valve are reduced, the use of materials is reduced, the production cost is reduced, and the miniaturization arrangement of the electronic expansion valve is facilitated.
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 an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is a schematic structural view of an embodiment of a valve seat of the present invention;
FIG. 5 is a schematic structural diagram of an electronic expansion valve according to another embodiment of the present invention;
fig. 6 is a partially enlarged view of C in fig. 5.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 100 | |
| Connecting segment | |
| | Valve cavity | 232 | |
|
| | Mounting port | 240 | |
|
| 100c | |
250 | |
|
| | Sealing groove | 260 | |
|
| 200 | |
300 | |
|
| 210 | Connecting |
400 | |
|
| 220 | Valve core seat | 410 | A |
|
| 220a | Valve |
410a | First supporting |
|
| 220b | Valve |
411 | |
|
| | Circulation port | 412 | |
|
| 230 | Valve |
420 | |
|
| 231 | Valve |
420a | Second supporting |
|
| 231a | Fixed |
421 | |
|
| | Extension section | 422 | Fourth cantilever |
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, 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, 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 utility model provides an electronic expansion valve.
In an embodiment of the present invention, referring to fig. 1 and 4, the electronic expansion valve includes a valve seat 100, a valve body assembly 200, a stator assembly 300, and a sealing structure 400, wherein the valve seat 100 is provided with a valve cavity 100a and a mounting port 100b communicated with the valve cavity 100 a; the valve body assembly 200 is disposed in the valve cavity 100a, and one end of the valve body assembly 200 extends outward from the mounting opening 100 b. Referring to fig. 1 to 2, the stator assembly 300 is sleeved at one end of the valve assembly 200 and detachably connected to the valve seat 100; the stator assembly 300 is used for driving the valve body assembly 200 to move, the stator assembly 300 is provided with a first end face abutting against the valve seat 100, and the valve seat 100 is provided with a second end face matched with the first end face; the sealing structure 400 is disposed between the first end surface and the second end surface to seal a gap between the stator assembly 300 and the valve body.
Specifically, referring to fig. 1, the valve seat 100 serves as a mounting carrier for a valve body assembly 200 to mount the valve body assembly 200 to a refrigeration system. Referring to fig. 1 and 4, the valve seat 100 has a valve cavity 100a, and a first passage 100c and a second passage communicating with the valve cavity 100a, and the valve body assembly 200 is at least partially located in the valve cavity 100a, such that a refrigerant can enter from the first passage 100c, pass through the valve body assembly 200, and then flow out from the second passage; on the contrary, the refrigerant enters from the second passage, passes through the valve body assembly 200, and then flows out from the first passage 100 c.
With continued reference to fig. 1 and 4, the valve seat 100 further includes a mounting port 100b, the mounting port 100b is in communication with the valve cavity 100a, and the valve body assembly 200 is inserted into the valve cavity 100a through the mounting port 100 b. The valve body assembly 200 may be provided in an elongated shape, and the valve body assembly 200 includes a mounting end mounted in the valve chamber 100a and a protruding end protruding from the mounting opening 100b to the outside of the valve chamber 100a so as to be fitted with the stator assembly 300.
Referring to fig. 1, the protruding end of the valve body assembly 200 is covered by the stator assembly 300, and when the stator assembly 300 is powered on, the valve body assembly 200 is driven to move, so as to control the flow rate of the refrigerant. The stator assembly 300 is detachably mounted to the valve seat 100 in various ways. In one embodiment, the stator assembly 300 is secured to the valve seat 100 by fasteners. The number of the fastening members may be plural to stably mount the stator assembly 300 on the valve seat 100. It will be appreciated that the fastener may be a screw.
Referring to fig. 1 to 2, the stator assembly 300 is mounted on the valve seat 100, the stator assembly 300 has a first end surface abutting against the valve seat 100, similarly, the valve seat 100 has a second end surface matching with the first end surface, and a sealing structure 400 is disposed between the first end surface and the second end surface, so as to seal a gap between the stator assembly 300 and the valve body assembly 200, protect the stator assembly 300, and perform a waterproof function.
The sealing structure 400 is pressed to deform, and an interference sealing gap is formed, thereby achieving a sealing effect. Referring to fig. 1 to fig. 2, when the electronic expansion valve is assembled, the sealing structure 400 may be first placed on the second end surface, and then the stator assembly 300 is pressed on the sealing assembly and is engaged with the valve seat 100, so that the sealing structure 400 is clamped between the first end surface and the second end surface, and the sealing between the stator assembly 300 and the valve seat 100 is realized.
According to the technical scheme, the valve body assembly 200 is installed in the valve cavity 100a, one end of the valve body assembly 200 extends outwards from the installation opening 100b, and the stator assembly 300 is sleeved on the periphery of the valve body assembly 200 and detachably connected with the valve seat 100. By providing the sealing structure 400 between the first end surface of the stator assembly 300 and the second end surface of the valve seat 100, the gap between the valve seat 100 and the stator assembly 300 is closed, so that liquid of the external environment is prevented from flowing into the valve body assembly 200 from the gap between the valve seat 100 and the stator assembly 300. The sealing structure 400 has a sealing function, seals a gap between the valve seat 100 and the stator assembly 300, and improves the waterproof performance of the electronic expansion valve.
Meanwhile, the sealing structure 400 is not arranged between the valve body assembly 200 and the stator assembly 300, and the valve body assembly 200 or the stator assembly 300 does not need to be increased in length to place the sealing structure 400, so that the length of the valve body assembly 200 or the stator assembly 300 is reduced, the overall size and weight of the electronic expansion valve are reduced, the use of materials is reduced, the production cost is reduced, and the miniaturization arrangement of the electronic expansion valve is facilitated.
Further, referring to fig. 1 and 4, in an embodiment, the sealing structure 400 is an annular structure and extends along a circumference of the mounting opening 100 b.
Referring to fig. 1, the annular sealing structure 400 extends along the circumference of the mounting opening 100b, so that when the stator assembly 300 abuts against the valve seat 100, the gap between the first end surface and the second end surface is sufficiently sealed, and the stator assembly 300 is waterproof, so that liquid does not enter the stator assembly 300, and the service life of the stator assembly 300 is prolonged.
The sealing structure 400 has various specific structures, referring to fig. 2, in one embodiment, the sealing structure 400 is a sealing ring or a sealing gasket (not shown). A seal ring or a seal gasket is provided to seal a gap between the stator assembly 300 and the valve seat 100.
Referring to fig. 2, the sealing structure 400 has an arcuate convex surface facing the stator assembly 300 and/or the sealing structure 400 has an arcuate convex surface facing the valve seat 100. Thus, when the first and second end surfaces press the sealing structure 400, the sealing structure 400 is deformed to be closely attached to the stator assembly 300 and the valve seat 100, thereby achieving a sealing effect.
Referring to fig. 5 to 6, in an embodiment, the sealing ring includes a first sealing portion 410 and a second sealing portion 420 connected to one end of the first sealing portion 410, the other end of the first sealing portion 410 has a first supporting groove 410a flaring, and a groove wall of the first supporting groove 410a is used for being in sealing contact with the first end surface; and/or, with continued reference to fig. 5 to 6, the second sealing portion 420 has a second supporting groove 420a disposed in a flaring manner, and a groove wall of the second supporting groove 420a is used for being in sealing abutment with the second end face.
Referring to fig. 6, the flaring of the first supporting groove 410a faces the first end surface, and the flaring of the second supporting groove 420a faces the second end surface, so that when the first sealing portion 410 contacts the first end surface, the first end surface is pressed against the groove wall of the first supporting groove 410a, thereby facilitating deformation of the sealing structure 400, and meanwhile, objects such as external liquid, dust, small flying insects and the like are not easy to enter through the first supporting groove 410a, thereby improving the sealing performance of the sealing structure 400. Similarly, when the second sealing portion 420 contacts the second end surface, due to the extrusion of the stator assembly 300, the flaring of the second supporting groove 420a is expanded, and the groove wall of the second supporting groove 420a is attached to the second end surface more tightly, thereby further improving the sealing performance of the sealing structure 400.
Further, in order to facilitate the deformation of the first sealing portion 410 and the second sealing portion 420, referring to fig. 6, in an embodiment, the first sealing portion 410 includes a first cantilever 411 and a second cantilever 412, the first cantilever 411 and the second cantilever 412 each have a first end and a second end opposite to each other in the axial direction, and a distance between the first cantilever 411 and the second cantilever 412 gradually increases from the first end to the second end to form the first supporting groove 410 a; and/or, with continued reference to fig. 6, the second sealing portion 420 includes a third cantilever 421 and a fourth cantilever 422, the third cantilever 421 and the fourth cantilever 422 each have a third end and a fourth end that are opposite to each other in the axial direction, and a distance between the third cantilever 421 and the fourth cantilever 422 gradually increases from the third end to the fourth end to form the second supporting groove 420 a.
Referring to fig. 6, a first end of the first cantilever 411 is connected to a first end of the second cantilever 412, and a distance between the first cantilever 411 and the second cantilever 412 gradually increases from the first end to the second end, forming a first support groove 410a with a flared opening. Similarly, the third end of the third cantilever 421 is connected to the third end of the fourth cantilever 422, and the distance between the third cantilever 421 and the fourth cantilever 422 gradually increases from the third end to the fourth end, forming a second support groove 420a with a flared opening; wherein the third end and the first end can be connected.
So, through setting up first cantilever 411, second cantilever 412, third cantilever 421 and fourth cantilever 422, do benefit to seal structure 400 and take place deformation, improve sealed effect. In addition, the sealing structure 400 forms at least 4 independent spaces to block objects such as external liquid, dust, small flying insects and the like, and the sealing performance of the sealing structure 400 is further improved.
Unlike the above embodiment, in one embodiment, the sealing gasket is partially bent in the axial direction to form a ridge facing the first end face or the second end face.
The shape of the bulge part is various, and the bulge part can be arc-shaped or zigzag, and can be specifically arranged according to the actual situation. By providing the raised portion on the gasket toward the first end surface or the second end surface, when the stator assembly 300 abuts against the valve seat 100, a stress concentration region is generated around the raised portion, and the maximum stress value is larger than that of a gasket without the raised portion, thereby further improving the sealing performance of the gasket. The raised portion may extend in the circumferential direction of the gasket, and the number of raised portions may be plural, thereby further improving the sealing performance of the gasket.
Referring to fig. 1 to 2 and 5, in an embodiment, the sealing structure 400 is spaced apart from the valve body assembly 200. This seal structure 400 and valve body subassembly 200 contactless, stator module 300 directly sets up seal structure 400 pressure on disk seat 100 to reduce the spare part of seal structure 400 contact, prevent to appear the gap between seal structure 400 and the valve body, ensure the sealed effect of seal structure 400.
To facilitate installation of the seal structure 400, referring to fig. 2 and 6, in one embodiment, the stator assembly 300 or the valve body assembly 200 is provided with a seal groove 100d to accommodate the seal structure 400. By providing the seal groove 100d in the stator assembly 300 or the valve body assembly 200, the seal structure 400 may be placed in the seal groove 100d first, and then the assembly operation may be continued. It should be noted that, after the sealing structure 400 is placed in the sealing groove 100d, at least a part of the sealing structure 400 protrudes from the notch of the sealing groove 100d, so as to ensure the sealing performance of the sealing structure 400 after deformation.
The stator assembly 300 has various structures, referring to fig. 1 to 2, in one embodiment, the stator assembly 300 includes a housing and a coil assembly, the coil assembly is installed in the housing, the housing is sleeved on one end of the valve body assembly 200, and the housing has the first end surface abutting against the valve seat 100. The coil assembly may include a stator and a coil wound on the stator, and when the coil is energized, the stator generates a vector magnetic field and drives the valve body assembly 200 to move under the magnetic force of the magnetic field.
Referring to fig. 1, the housing is recessed to form a receiving groove for receiving the protruding end of the valve assembly 200, so as to cover the valve assembly 200 in the housing. Through installing coil pack in the casing to isolated external environment avoids coil pack to intake, guarantees coil pack's normal use. The first end surface is formed on a surface of the housing facing the valve seat 100, and the sealing structure 400 is disposed between the first end surface and the second end surface, thereby sealing a gap between the housing and the valve seat 100.
Referring to fig. 1 and 4, in one embodiment, the valve body assembly 200 includes a connecting seat 210, a valve core seat 220 and a valve core assembly 230, the connecting seat 210 is installed in the valve cavity 100a, and the valve core seat 220 is provided with a valve core cavity 220a and a valve port 220b communicated with the valve core cavity 220 a; the valve core seat 220 is located at one end of the connecting seat 210, which faces away from the mounting opening 100b, and the connecting seat 210 is provided with a guide hole communicated with the valve core cavity 220 a. Referring to fig. 1 and 3, the valve core assembly 230 is disposed on the connecting seat 210 and can reciprocate along the guide hole and the valve core cavity 220a to close or open the valve port 220 b.
Referring to fig. 1 to 3, the guide hole is coaxially disposed with the valve core chamber 220a, so that the valve core assembly 230 reciprocates in the connecting seat 210 and the valve core seat 220, thereby closing and opening the valve port 220b of the valve core seat 220, and controlling the flow rate of the refrigerant. Referring to fig. 3, the valve core seat 220 further has a flow port 220c communicated with the valve core chamber 220a, and the flow port 220c may be disposed on a side wall of the valve core seat 220, so that when refrigerant enters the valve core chamber 220a from the valve port 220b, the refrigerant can flow out of the valve core seat 220 through the flow port 220 c. It is understood that the number of the flow ports 220c may be one or more.
Referring to fig. 1 to 2, the valve body assembly 200 includes a bearing 250 installed in the guide hole, the valve core assembly 230 may include a valve rod 231 and a valve core 232, the valve core 232 is inserted into the valve port 220b and is movable in the guide hole, and the valve rod 231 is disposed through the bearing 250. Referring to fig. 5, the valve rod 231 includes a fixed section 231a and an extended section 231b, the fixed section 231a is rotatably connected to the bearing 250; the extension 231b is inserted into the valve element 232 and is threadedly coupled with the valve element 232. Specifically, the extension 231b is provided with an internal thread, and the valve element 232 is provided with an external thread, so that the valve element 232 moves relative to the valve rod 231 by rotating the valve rod 231 to convert the rotary motion into linear motion. It can be understood that the valve core 232 is provided with a stopper, the guide hole is provided with a stopper groove into which the stopper extends, and the valve core 232 cannot rotate along with the valve rod 231 by cooperation of the stopper and the stopper groove, thereby realizing linear motion of the valve core 232.
Referring to fig. 5, the valve rod 231 further includes a connecting section 231c connected to the fixing end, the connecting section 231c is disposed opposite to the extending section, and the valve body assembly 200 further includes a rotor assembly 260 fixedly connected to the connecting section 231 c. Referring to fig. 5, the connecting segment 231c extends along the axial direction of the connecting seat 210. The rotor assembly 260 is provided with a through hole, and the through hole and the connection section 231c may be fixed by interference fit or welding to ensure the connection strength between the rotor assembly 260 and the connection section 231 c. When the coil assembly is energized, a magnetic field is generated to drive the rotor assembly 260 to rotate, and the valve rod 231 fixedly connected with the rotor assembly 260 also rotates, so that the valve element 232 in threaded connection with the valve rod 231 moves along the axial direction of the valve rod 231, and the valve port 220b is opened and closed.
To prevent liquid and the like from entering the interior of the valve body assembly 200, referring to fig. 1 and 5, in an embodiment, the valve body assembly 200 further includes a valve sleeve 240, the valve sleeve 240 is sleeved on one end of the valve core assembly 230 extending out of the mounting port 100b, and the valve sleeve 240 is connected to the connecting seat 210 in a sealing manner. The valve sleeve 240 covers the periphery of the rotor assembly 260 and is connected with the connecting seat 210 in a sealing manner, so that external liquid, dust, small winged insects and the like are further isolated, and the valve core assembly 230 is protected.
The present invention further provides a refrigeration system, which includes an electronic expansion valve, and the specific structure of the electronic expansion valve refers to the above embodiments, and since the refrigeration system adopts all the technical solutions of all the above embodiments, the refrigeration system at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. The electronic expansion valve comprises a valve seat 100, a valve body assembly 200, a stator assembly 300 and a sealing structure 400, wherein the sealing structure 400 is arranged between a first end surface of the stator assembly 300 and a second end surface of the valve body, so that a gap between the stator assembly 300 and the valve body is sealed.
In one embodiment, the refrigeration system may be a refrigeration system of an air conditioner, a freezer, a refrigerator, a heat pump water heater, or other refrigeration or heating equipment, etc. The electronic expansion valve can control the flow of a refrigerating medium, such as a refrigerant, in the refrigerating system. Specifically, the air conditioner may be a household air conditioner or a vehicle-mounted air conditioner.
The utility model further provides an automobile which comprises the refrigeration system, the refrigeration system comprises an electronic expansion valve, and the specific structure of the electronic expansion valve is as described in the embodiments above, which is not repeated herein. In particular, the vehicle may be a car, a passenger car or a truck for carrying persons and/or goods. Wherein the truck may be a refrigerated transport vehicle for carrying goods to be preserved frozen.
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 (12)
1. An electronic expansion valve, comprising:
the valve seat is provided with a valve cavity and an installation opening communicated with the valve cavity;
the valve body assembly is arranged in the valve cavity, and one end of the valve body assembly extends out of the mounting opening;
the stator assembly is sleeved at one end of the valve body assembly and is detachably connected with the valve seat; the stator assembly is used for driving the valve body assembly to move, the stator assembly is provided with a first end surface abutted with the valve seat, and the valve seat is provided with a second end surface matched with the first end surface; and
and the sealing structure is arranged between the first end surface and the second end surface so as to seal a gap between the stator assembly and the valve body.
2. The electronic expansion valve of claim 1, wherein the sealing structure is an annular structure and extends along a periphery of the mounting opening.
3. The electronic expansion valve of claim 2, wherein said sealing structure is a gasket or a gasket seal.
4. The electronic expansion valve according to claim 3, wherein the gasket comprises a first sealing portion and a second sealing portion connected to one end of the first sealing portion, the other end of the first sealing portion has a first supporting groove formed in a flared shape, and a groove wall of the first supporting groove is adapted to be in sealing abutment with the first end face; and/or the second sealing part is provided with a second support groove arranged in a flaring manner, and the groove wall of the second support groove is used for being in sealing abutment with the second end face.
5. The electronic expansion valve of claim 4, wherein the first seal portion comprises a first cantilever arm and a second cantilever arm, the first and second cantilever arms each having axially opposite first and second ends, the first and second cantilever arms having a spacing that gradually increases from the first end to the second end to form the first support groove; and/or the presence of a gas in the atmosphere,
the second sealing portion includes a third cantilever and a fourth cantilever, each of the third cantilever and the fourth cantilever has a third end and a fourth end opposite to each other in the axial direction, and a distance between the third cantilever and the fourth cantilever is gradually increased from the third end to the fourth end to form the second support groove.
6. The electronic expansion valve of claim 3, wherein the sealing gasket is partially bent in the axial direction to form a ridge portion facing the first end face or the second end face.
7. The electronic expansion valve of any of claims 1-6, wherein the sealing structure is spaced apart from the valve body assembly.
8. The electronic expansion valve of claim 7, wherein the stator assembly or the valve body assembly is provided with a sealing groove that accommodates the sealing structure.
9. The electronic expansion valve of claim 7, wherein the stator assembly comprises a housing and a coil assembly, the coil assembly being mounted within the housing, the housing being sleeved over an end of the valve body assembly, the housing having the first end surface abutting the valve seat.
10. The electronic expansion valve according to claim 7, wherein the valve body assembly comprises a connecting seat, a valve core seat and a valve core assembly, the connecting seat is mounted to the valve cavity, and the valve core seat is provided with a valve core cavity and a valve port communicated with the valve core cavity; the valve core seat is positioned at one end of the connecting seat, which is back to the mounting opening, and the connecting seat is provided with a guide hole communicated with the valve core cavity;
the valve core assembly is arranged on the connecting seat and can reciprocate along the guide hole and the valve core cavity so as to close or open the valve port.
11. A refrigeration system comprising an electronic expansion valve as claimed in any one of claims 1 to 10.
12. An automobile comprising the refrigeration system of claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220165676.6U CN216812903U (en) | 2022-01-20 | 2022-01-20 | Electronic expansion valve, refrigerating system and automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220165676.6U CN216812903U (en) | 2022-01-20 | 2022-01-20 | Electronic expansion valve, refrigerating system and automobile |
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| Publication Number | Publication Date |
|---|---|
| CN216812903U true CN216812903U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220165676.6U Active CN216812903U (en) | 2022-01-20 | 2022-01-20 | Electronic expansion valve, refrigerating system and automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025228356A1 (en) * | 2024-04-30 | 2025-11-06 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
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2022
- 2022-01-20 CN CN202220165676.6U patent/CN216812903U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025228356A1 (en) * | 2024-04-30 | 2025-11-06 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
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