CN220185987U - Universal electronic expansion valve - Google Patents
Universal electronic expansion valve Download PDFInfo
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- CN220185987U CN220185987U CN202321602685.8U CN202321602685U CN220185987U CN 220185987 U CN220185987 U CN 220185987U CN 202321602685 U CN202321602685 U CN 202321602685U CN 220185987 U CN220185987 U CN 220185987U
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- 239000000428 dust Substances 0.000 claims description 4
- 238000005034 decoration Methods 0.000 abstract 2
- 238000009434 installation Methods 0.000 description 17
- 238000012423 maintenance Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a general electronic expansion valve, which comprises: the valve body is internally provided with a hollow valve cavity, the top surface of the valve cavity is provided with a valve cavity opening, the bottom surface of the valve cavity is provided with a first through hole, the side surface of the valve cavity is provided with a second through hole, and the first through hole and the second through hole are used for communicating with a pipeline; the valve cover is arranged at the upper end of the valve body, and a valve cover cavity is arranged in the valve cover; a valve core assembly consisting of a needle valve, a guide seat, a reset spring and a pressure spring is arranged in the valve cover cavity, a magnet is arranged at the upper end of the needle valve, and threads are arranged on the side surface of the needle valve; a rotation stopping guide part is arranged in the valve cavity opening, and a guide seat is matched with the rotation stopping guide part and fixed in the valve cavity opening; the middle part of the guide seat is provided with a threaded hole; the reset spring and the pressure spring are respectively arranged above and below the magnet. According to the utility model, the limit convex part on the decoration is matched with the limit groove on the closing part, so that the economic loss of a user caused by the fact that the decoration falls off and is lost from the closing part is effectively avoided.
Description
Technical Field
The utility model relates to the technical field of electronic expansion valves, in particular to a universal electronic expansion valve.
Background
The electronic expansion valve is a throttle control element which uses an electric signal generated by a regulated parameter to control the voltage or current applied to the expansion valve so as to regulate the liquid supply amount, and can be divided into an electromagnetic electronic expansion valve and an electric electronic expansion valve according to the driving mode.
The electromagnetic electronic expansion valve drives the needle valve by means of the magnetic force of the electromagnetic coil, the needle valve is in a full-open position before the electromagnetic coil is electrified, the needle valve is acted by the magnetic force after the electromagnetic coil is electrified, the opening degree of the needle valve is reduced, and the opening degree is related to the control voltage on the coil.
And the electric electronic expansion valve directly drives the needle valve by a pulse stepping motor. When the pulse voltage of the control circuit acts on each phase coil of the motor stator according to a certain logic relationship, the motor rotor made of the permanent magnet generates rotary motion under the action of magnetic moment, and the needle valve is enabled to ascend or descend through the transmission of threads, so that the flow of the valve is regulated.
Because the driving principle and the coil structure of the electromagnetic electronic expansion valve and the electric electronic expansion valve are different, the internal structures of the common electromagnetic electronic expansion valve and the electric electronic expansion valve are different, the electromagnetic coil and the electronic coil cannot be used commonly, the electronic expansion valve on the market has the problem of single functional structure, and the maintenance cost of the electronic expansion valve is high when the electronic expansion valve fails.
In view of this, there is an urgent need for a universal electronic expansion valve to solve the problems of single function, non-universal coil fittings and high maintenance cost of the existing electronic expansion valve.
Disclosure of Invention
The utility model aims to solve the technical problems that the existing electronic expansion valve is single in function, coil accessories cannot be used universally, and the maintenance cost is high.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a universal electronic expansion valve comprising:
the valve body is internally provided with a hollow valve cavity, the top surface of the valve cavity is provided with a valve cavity opening, the bottom surface of the valve cavity is provided with a first through hole, the side surface of the valve cavity is provided with a second through hole, and the first through hole and the second through hole are used for communicating the valve cavity with a pipeline;
the valve cover is arranged at the upper end of the valve body, and a valve cover cavity is arranged in the valve cover; valve core assembly is equipped with in the valve gap chamber, the valve core assembly includes:
the needle valve is provided with a magnet at the upper end, a valve needle part at the lower end and threads on the side surface;
the guide seat is movably arranged along the length direction of the valve cover cavity, a rotation stopping guide part is arranged in the valve cavity opening, and the guide seat is matched with the rotation stopping guide part to fix the guide seat in the valve cavity opening; the middle part of the guide seat is provided with a threaded hole which is matched with the threads;
the reset spring is arranged on the top surface of the needle valve, and two ends of the reset spring respectively lean against the valve cover and the magnet;
the pressure spring is sleeved on the needle valve, and two ends of the pressure spring respectively lean against the magnet and the guide seat.
In the above technical solution, preferably, the rotation stopping guide portion is a rib protruding along an inner side surface of the valve cavity, and the rib is parallel to a length direction of the valve cover cavity;
the outer side surface of the guide seat is provided with a guide groove matched with the convex rib.
In the above technical solution, preferably, the guide holder includes:
the valve cavity is provided with a valve cavity opening, and the valve cavity opening is provided with a valve cavity opening; the guide groove is arranged on the outer side surface of the supporting plate;
the guide seat body is arranged on the bottom surface of the supporting plate, and the outer diameter of the guide seat body is smaller than that of the supporting plate.
In the above technical solution, preferably, a spring limiting groove is provided on the bottom surface of the magnet, and the upper end of the pressure spring is disposed in the spring limiting groove.
In the above technical scheme, preferably, the lower extreme of valve gap sets up the buckling parts, along with the valve gap is installed on the valve body, the buckling parts sets up on the lateral surface of valve body, the lower extreme of buckling parts sets up the binding off structure, the binding off structure includes:
the supporting part is arranged along the lower end of the buckling part in a protruding way;
the receiving part is arranged at the lower end of the supporting part and protrudes into the valve cover cavity.
In the above technical solution, preferably, the device further includes a coil bracket, including:
the support plate is annular, and the shape and the size of an inner hole of the support plate are matched with those of the valve cover;
the fixing plate is arranged along the inner edge of the support plate in a downward protruding mode, and the fixing plate is welded and fixed with the outer side face of the valve cover.
In the above technical solution, preferably, the support plate is provided with a screw hole.
In the above technical scheme, preferably, a first pipe installation groove and a second pipe installation groove are respectively arranged on the bottom surface and the outer side surface of the valve body, the first through hole and the second through hole are respectively arranged in the first pipe installation groove and the second pipe installation groove, and a first channel pipe and a second channel pipe are respectively arranged on the first pipe installation groove and the second pipe installation groove.
In the above technical solution, preferably, dust covers are disposed on the first channel pipe and the second channel pipe.
Compared with the prior art, the universal electronic expansion valve comprises a valve body, a valve cover and a valve core assembly arranged in a valve cover cavity of the valve cover, wherein the valve core assembly comprises a needle valve, a guide seat, a reset spring and a pressure spring; when the electromagnetic coil is arranged on the valve cover, the needle valve can move up and down in the valve cavity and the valve cover cavity under the action of the magnetic attraction force of the electromagnetic coil, so that the opening of the electronic expansion valve is controlled, and the flow control is realized. The utility model has simple structure and convenient use, can be matched with the electronic coil or the electromagnetic coil to realize the opening control of the needle valve, further realize the flow regulation and the throttling control, has good universality, does not need to match the electronic expansion valve with a specific structure according to the coil type, and reduces the maintenance cost of the electronic expansion valve.
Drawings
FIG. 1 is a front view of a general electronic expansion valve according to the present utility model;
FIG. 2 is a block diagram of a general electronic expansion valve according to the present utility model;
FIG. 3 is a schematic cross-sectional view of a conventional electronic expansion valve with an electronic coil according to the present utility model;
FIG. 4 is a schematic cross-sectional view of a conventional electronic expansion valve with a solenoid coil according to the present utility model;
FIG. 5 is a schematic view of a valve cover according to the present utility model;
FIG. 6 is a schematic view of the structure of the needle valve of the present utility model;
FIG. 7 is a schematic view of the structure of the valve body of the present utility model;
fig. 8 is a schematic cross-sectional view at A-A in fig. 3.
The correspondence between the names and the reference numerals of the respective components in fig. 1 to 8 is as follows:
valve body 1, valve cover 2, needle valve 3, guide seat 4, return spring 5, pressure spring 6, coil bracket 7, coil 8,
the valve chamber 11, the valve chamber opening 12, the first through hole 13, the second through hole 14, the first pipe installation groove 15, the second pipe installation groove 16, the first passage pipe 17, the second passage pipe 18, the dust cover 19,
a rotation stopping guide part 121, an expanded diameter part 122,
a valve cover cavity 21, a buckling part 22, a supporting part 23, a receiving part 24,
a magnet 31, a valve needle part 32, a spring limit groove 33,
a support plate 41, a guide holder body 42, a threaded hole 43, a guide groove 44,
a bracket plate 71, a fixing plate 72,
an electrical coil 81, an electromagnetic coil 82.
Detailed Description
The utility model provides a general electronic expansion valve, which effectively avoids economic loss of a user caused by falling and losing of a decorating part from a closing part through matching a limiting convex part on the decorating part with a limiting groove on the closing part. The utility model is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 8, the universal electronic expansion valve provided by the utility model comprises a valve body 1, a valve cover 2 and a valve core assembly.
The valve body 1 is internally provided with a hollow valve cavity 11, the top surface of the valve cavity 11 is provided with a valve cavity opening 12, the bottom surface of the valve cavity 11 is provided with a first through hole 13, the side surface of the valve cavity 11 is provided with a second through hole 14, and the first through hole 13 and the second through hole 14 are used for communicating the valve cavity 11 with a pipeline. The bottom surface and the outer side surface of the valve body 1 are respectively provided with a first pipeline installation groove 15 and a second pipeline installation groove 16, the first through hole 13 and the second through hole 14 are respectively arranged in the first pipeline installation groove 15 and the second pipeline installation groove 16, and the first pipeline installation groove 15 and the second pipeline installation groove 16 are respectively provided with a first channel pipe 17 and a second channel pipe 18. The first channel pipe 17 and the second channel pipe 18 are provided with dust covers 19.
The valve cover 2 is arranged at the upper end of the valve body 1, and a valve cover cavity 21 is arranged in the valve cover 2. The lower end of the valve cover 2 is provided with a buckling part 22, and the buckling part 22 is arranged on the outer side surface of the valve body 1 along with the installation of the valve cover 2 on the valve body 1. The lower extreme of buckling parts 22 sets up the binding off structure, and the binding off structure includes supporting part 23 and receipts oral area 24, and supporting part 23 sets up along the lower extreme terminal surface downward bulge of valve gap 2, and receipts oral area 24 sets up the lower extreme at supporting part 23, and the protrusion sets up in to valve gap chamber 21, and the binding off structure is used for making receipts oral area 24 set up between the inner wall in valve gap chamber 21 and the lateral surface of valve gap 2 along with the installation of valve gap 2 when valve gap 2 is installed on valve body 1, plays the effect of connecting valve gap 2 and valve body 1.
The valve core assembly is arranged in the valve cover cavity and comprises a needle valve 3, a guide seat 4, a return spring 5 and a pressure spring 6.
The upper end of the needle valve 3 is provided with a magnet 31, the lower end of the needle valve 3 is provided with a needle valve part 32, and the side surface of the needle valve 3 is provided with threads. A spring limit groove 33 is provided on the bottom surface of the magnet 31.
The guide seat 4 is movably arranged along the length direction of the valve cover cavity 21, a rotation stopping guide part 121 is arranged in the valve cavity opening 12, and the guide seat 4 is matched with the rotation stopping guide part 121 to fix the guide seat 4 in the valve cavity opening 12.
The guide holder 4 includes a support plate 41 and a guide holder body 42. The valve cavity opening 12 is provided with an expanded diameter portion 122, and the outer diameter of the support plate 41 is adapted to the inner diameter of the expanded diameter portion 122. The guide seat body 42 is arranged on the bottom surface of the supporting plate 41, the outer diameter of the guide seat body 42 is smaller than that of the supporting plate 41, and the outer diameter of the guide seat body 42 is matched with the inner diameter of the valve cavity 11. The middle part of guide holder 4 is equipped with screw hole 43, and screw hole 43 runs through backup pad 41 and guide holder body 42 setting, screw hole 43 and screw thread looks adaptation.
Preferably, the rotation stopping guide portion 121 is a rib protruding along an inner side surface of the valve chamber 11, and the rib is parallel to a length direction of the valve cover chamber 21. The outer side surface of the guide seat 4 is provided with a guide groove 44 matched with the convex rib, and the guide groove 44 is arranged on the outer side surface of the supporting plate 41.
The return spring 5 is provided on the top surface of the needle valve 3, and both ends of the return spring 5 are abutted against the valve cover 2 and the magnet 31, respectively.
The pressure spring 6 is sleeved on the needle valve 3, the upper end of the pressure spring 6 is arranged in the spring limiting groove 33 and is abutted against the magnet 31, and the lower end of the pressure spring 6 is abutted against the guide seat 4.
The universal electronic expansion valve provided by the utility model further comprises a coil bracket 7, wherein the coil bracket 7 comprises a bracket plate 71 and a fixing plate 72, the bracket plate 71 is annular, and the shape and the size of an inner hole of the bracket plate 71 are matched with those of the valve cover 2. The bracket plate 71 is provided with screw holes for mounting screws for fixing the coil. The fixing plate 72 is arranged along the inner edge of the support plate 71 in a downward protruding mode, and the fixing plate 72 is welded and fixed with the outer side face of the valve cover 2.
The working process of the utility model is as follows:
the electronic coil 81 is mounted on the top surface of the coil support 7, and forms an electric electronic expansion valve assembly with the universal electronic expansion valve. When the electronic coil 81 is not electrified, under the action of the return spring 5, the guide seat 4 is arranged in the valve cavity opening 12, the lower end of the needle valve 3 is inserted and arranged in the first through hole 13, and the expansion valve is closed. After the electric coil 81 is energized, the magnetic field generated by the electric coil 81 drives the magnet 31 at the upper end of the needle valve 3 to rotate, thereby driving the needle valve 3 to rotate. Since the guide groove 44 on the guide seat 4 is matched with the rotation stopping guide part 121 on the valve body 1, the guide seat 4 is fixed in the valve cavity opening 12 and does not rotate along with the needle valve 3. The screw thread on the side of the needle valve 3 is matched with the screw hole 43 on the guide seat 4, so that the needle valve 3 is arranged along the length direction of the valve cover cavity 21 and the valve cavity 11, the opening degree between the first through hole 13 and the valve needle part 32 is controlled, and the flow control of the expansion valve is realized.
The electromagnetic coil 82 is installed on the top surface of the coil bracket 7 and forms an electromagnetic electronic expansion valve assembly with the general electronic expansion valve. When the electromagnetic coil 82 is not electrified, under the action of the return spring 5, the guide seat 4 is arranged in the valve cavity opening 12, the lower end of the needle valve 3 is inserted and arranged in the first through hole 13, and the expansion valve is closed. When the electromagnetic coil 82 is energized, the electromagnetic coil 82 generates a magnetic field, and generates an upward suction force to the magnet 31, so that the needle valve 3 moves upward along the valve cover cavity 21 and the valve cavity 11, the needle portion 32 of the needle valve 3 leaves the first through hole 31, and the expansion valve is opened. In this process, the guide holder 4 is fixed to the needle valve 3 so as to move upward along the valve cover chamber 21 and the valve chamber 11 with the needle valve 3, since the screw thread on the side surface of the needle valve 3 is engaged with the screw hole 43 on the guide holder 4. When the expansion valve needs to be closed, the electromagnetic coil 82 is powered off, the needle valve 3 is reset under the action of the reset spring 5, the lower end of the needle valve 3 is inserted and arranged in the first through hole 13, and the expansion valve is closed.
Compared with the prior art, the universal electronic expansion valve provided by the utility model has the following advantages:
(1) The electromagnetic expansion valve can be matched with an electronic coil to form an electric electronic expansion valve assembly, and can also be matched with an electromagnetic coil to form an electric electromagnetic expansion valve assembly, so that the electronic expansion valve with a specific structure is not required to be matched according to the type of the coil, and the maintenance cost of the electronic expansion valve is reduced;
(2) The rib is used as a turning guide part, the guide groove is matched with the rib, the structure is simple, the installation is convenient, and the production cost of the universal electronic expansion valve is reduced;
(3) The valve body is provided with an expanding part, the lower end of the valve cover is provided with a buckling part, and the buckling part is arranged at the outer side of the expanding part, so that the tightness of the valve cavity and the valve cover cavity is improved; the lower end of the buckling part is provided with a buckling structure, so that the valve cover and the valve body are convenient to install and are not required to be connected through welding, the assembly difficulty of the valve cover and the valve body is reduced, and the production cost of the universal electronic expansion valve is reduced;
(4) The universal electronic expansion valve further comprises a coil support, the coil support is sleeved on the valve cover, a screw hole is formed in a support plate of the coil support, a supporting function can be achieved on the coil, the coil can be fixed with the support plate through screws, stability of the coil is improved, convenience in disassembly is improved, and convenience is brought to a user to replace the coil.
The present utility model is not limited to the above-mentioned preferred embodiments, and any person who can learn the structural changes made under the teaching of the present utility model can fall within the scope of the present utility model if the present utility model has the same or similar technical solutions.
Claims (9)
1. A universal electronic expansion valve, comprising:
the valve body is internally provided with a hollow valve cavity, the top surface of the valve cavity is provided with a valve cavity opening, the bottom surface of the valve cavity is provided with a first through hole, the side surface of the valve cavity is provided with a second through hole, and the first through hole and the second through hole are used for communicating the valve cavity with a pipeline;
the valve cover is arranged at the upper end of the valve body, and a valve cover cavity is arranged in the valve cover; valve core assembly is equipped with in the valve gap chamber, the valve core assembly includes:
the needle valve is provided with a magnet at the upper end, a valve needle part at the lower end and threads on the side surface;
the guide seat is movably arranged along the length direction of the valve cover cavity, a rotation stopping guide part is arranged in the valve cavity opening, and the guide seat is matched with the rotation stopping guide part to fix the guide seat in the valve cavity opening; the middle part of the guide seat is provided with a threaded hole which is matched with the threads;
the reset spring is arranged on the top surface of the needle valve, and two ends of the reset spring respectively lean against the valve cover and the magnet;
the pressure spring is sleeved on the needle valve, and two ends of the pressure spring respectively lean against the magnet and the guide seat.
2. The universal electronic expansion valve of claim 1, wherein said rotation stopping guide is a rib protruding along an inner side surface of said valve cavity, said rib being parallel to a length direction of said valve cavity;
the outer side surface of the guide seat is provided with a guide groove matched with the convex rib.
3. The universal electronic expansion valve of claim 2, wherein said guide holder comprises:
the valve cavity is provided with a valve cavity opening, and the valve cavity opening is provided with a valve cavity opening; the guide groove is arranged on the outer side surface of the supporting plate;
the guide seat body is arranged on the bottom surface of the supporting plate, and the outer diameter of the guide seat body is smaller than that of the supporting plate.
4. The universal electronic expansion valve of claim 1, wherein a spring limit groove is provided on the bottom surface of the magnet, and the upper end of the pressure spring is disposed in the spring limit groove.
5. The universal electronic expansion valve of claim 1, wherein the lower end of the valve cover is provided with a buckling part, the buckling part is arranged on the outer side surface of the valve body along with the valve cover, the lower end of the buckling part is provided with a closing-in structure, and the closing-in structure comprises:
the supporting part is arranged along the lower end of the buckling part in a protruding way;
the receiving part is arranged at the lower end of the supporting part and protrudes into the valve cover cavity.
6. The universal electronic expansion valve of claim 1, further comprising a coil support comprising:
the support plate is annular, and the shape and the size of an inner hole of the support plate are matched with those of the valve cover;
the fixing plate is arranged along the inner edge of the support plate in a downward protruding mode, and the fixing plate is welded and fixed with the outer side face of the valve cover.
7. The universal electronic expansion valve of claim 6, wherein said bracket plate is provided with screw holes.
8. The universal electronic expansion valve of claim 1, wherein a first pipe mounting groove and a second pipe mounting groove are respectively provided on the bottom surface and the outer side surface of the valve body, the first through hole and the second through hole are respectively provided in the first pipe mounting groove and the second pipe mounting groove, and a first channel pipe and a second channel pipe are respectively mounted on the first pipe mounting groove and the second pipe mounting groove.
9. The universal electronic expansion valve of claim 8, wherein said first channel tube and said second channel tube are provided with dust caps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321602685.8U CN220185987U (en) | 2023-06-21 | 2023-06-21 | Universal electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321602685.8U CN220185987U (en) | 2023-06-21 | 2023-06-21 | Universal electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220185987U true CN220185987U (en) | 2023-12-15 |
Family
ID=89107274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321602685.8U Active CN220185987U (en) | 2023-06-21 | 2023-06-21 | Universal electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220185987U (en) |
-
2023
- 2023-06-21 CN CN202321602685.8U patent/CN220185987U/en active Active
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