CN217301619U - Electronic expansion valve, refrigeration equipment and running device - Google Patents
Electronic expansion valve, refrigeration equipment and running device Download PDFInfo
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- CN217301619U CN217301619U CN202220726683.9U CN202220726683U CN217301619U CN 217301619 U CN217301619 U CN 217301619U CN 202220726683 U CN202220726683 U CN 202220726683U CN 217301619 U CN217301619 U CN 217301619U
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- valve
- screw rod
- rotation
- electronic expansion
- valve needle
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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, refrigeration plant and running gear, the electronic expansion valve includes valve body, rotating assembly and valve needle; a valve cavity is formed inside the valve body, and the valve body is provided with a valve port; the rotating assembly comprises a rotor and a screw rod, the rotor is rotatably arranged in the valve cavity and connected with the screw rod so as to drive the screw rod to rotate; a fixing piece for axially fixing the screw rod is arranged in the valve cavity; the valve needle is used for blocking the valve port, a threaded hole is formed in the valve needle, and one end, far away from the rotor, of the screw rod is inserted into the threaded hole; an anti-rotation assembly is arranged between the outer wall of the valve needle and the inner wall of the valve cavity and comprises an anti-rotation block and an anti-rotation groove, at least one of the anti-rotation block and the anti-rotation groove extends in the axial direction of the valve cavity, and the anti-rotation block is connected with the anti-rotation groove in a sliding mode; one end of the valve needle, which is far away from the valve port, is provided with a first stopping part, a screw rod and/or a valve cavity are/is internally provided with a second stopping part, and the second stopping part is used for being abutted against the first stopping part. The technical scheme of the utility model can make electronic expansion valve's volume reduce.
Description
Technical Field
The utility model relates to a refrigeration appliance field, in particular to electronic expansion valve, refrigeration plant and running gear.
Background
At present, new energy vehicles develop rapidly, the endurance mileage of batteries of the new energy vehicles also becomes one of the bottlenecks restricting further rapid development of the batteries, and the endurance mileage can be improved by improving the performance of an automobile air conditioner and reducing the weight of the whole vehicle under the condition of the same batteries. Therefore, the new energy automobile industry needs to be researched and developed towards integration and light weight at present.
The electronic expansion valve is applied to refrigeration equipment of the new energy automobile and used for controlling the flow of a refrigerant. The existing electronic expansion valve generally limits the moving stroke of the valve needle by arranging the stop block on the end face of the connecting seat, but the height of the connecting seat can be increased due to the arrangement of the stop block, and the height of the connecting seat is related to the height of the electronic expansion valve, so that the integral height of the electronic expansion valve is increased, the size of the electronic expansion valve is increased, and adverse effects are caused on the performance of a new energy automobile.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electronic expansion valve, aim at making electronic expansion valve structure compacter, the volume is littleer.
In order to achieve the above object, the present invention provides an electronic expansion valve, including:
the valve comprises a valve body, a valve cavity and a valve seat, wherein the valve cavity is formed inside the valve body;
the rotating assembly comprises a rotor and a screw rod, the rotor is rotatably arranged in the valve cavity, and the rotor is connected with the screw rod so as to drive the screw rod to rotate; a fixing piece for axially fixing the screw rod is arranged in the valve cavity;
the valve needle is used for plugging the valve port, a threaded hole is formed in the valve needle, and one end, far away from the rotor, of the screw rod is inserted into the threaded hole; an anti-rotation component is arranged between the outer wall of the valve needle and the inner wall of the valve cavity and comprises an anti-rotation block and an anti-rotation groove, at least one of the anti-rotation block and the anti-rotation groove extends in the axial direction of the valve cavity, and the anti-rotation block is connected with the anti-rotation groove in a sliding mode so as to limit the valve needle to rotate in the circumferential direction; the screw rod can drive the valve needle to move back and forth along the axial direction in a rotating way so as to open or close the valve port;
a first stopping portion is arranged at one end, far away from the valve port, of the valve needle, a second stopping portion is arranged in the screw rod and/or the valve cavity, and the second stopping portion is used for abutting against the first stopping portion.
Optionally, the rotation preventing block is disposed on an end surface of the valve needle at an end far away from the valve port, and a protrusion extending toward a direction close to the second stopper portion is disposed on the end surface of the valve needle at an end far away from the valve port.
Optionally, the first stopping portion is disposed on the protrusion, and a length of the protrusion protruding from the anti-rotation block toward the second stopping portion is greater than 0.5 mm.
Optionally, the first stopping portion is disposed on the rotation preventing block, and a length of the rotation preventing block protruding from the protrusion in a direction close to the second stopping portion is greater than 0.5 mm.
Optionally, the valve needle and the rotation prevention block are of an integrally formed structure.
Optionally, the rotation prevention blocks have two, and the two rotation prevention blocks are symmetrically arranged on the valve needle.
Optionally, the inner wall of valve chamber is equipped with the bearing, the lead screw be equipped with the connecting block that the bearing is connected.
Optionally, the second stopper is disposed on the connecting block.
Optionally, the rotor is provided with a connecting sheet connected with the screw rod, the connecting sheet is provided with an installation through hole, and one end of the screw rod, which is far away from the valve needle, penetrates through the installation through hole.
Optionally, the fixing part is provided with a limiting hole, one end of the screw rod, which is far away from the valve needle, penetrates through the mounting through hole, and the other end of the screw rod, which is far away from the valve needle, is inserted into the limiting hole.
The utility model discloses still provide a refrigeration plant, include as above arbitrary one electronic expansion valve.
The utility model also provides a running device, include as above one refrigeration plant.
The technical scheme of the utility model one end through keeping away from the valve port at the needle sets up first backstop portion, and set up the second backstop portion that offsets with first backstop portion at the lead screw, when the valve needle rebound is in the state of opening completely to the valve port, first backstop portion offsets with second backstop portion, can restrict the further rebound of needle, compare with current electronic expansion valve, need not set up corresponding backstop component on the terminal surface of connecting seat, can reduce the height of connecting seat, and then reduce the holistic height of electronic expansion valve, make electronic expansion valve's structure compacter, the volume is littleer.
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 embodiments or the prior art descriptions 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 the electronic expansion valve of the present invention.
Fig. 2 is a schematic structural diagram of a screw rod and a valve needle according to an embodiment of the present invention.
Fig. 3 is a schematic view of an explosion structure of a screw rod and a valve needle according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a valve needle according to another embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a valve needle according to another embodiment of the electronic expansion valve of the present invention.
Fig. 6 is a schematic structural diagram of a valve needle according to another embodiment of the present invention.
Fig. 7 is a top view of a valve needle in an embodiment of the present invention.
Fig. 8 is a top view of a connecting seat in an embodiment of the electronic expansion valve of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 10 | |
302 | Connecting |
|
| 101 | |
40 | |
|
| 102 | |
401 | Threaded |
|
| 103 | |
402 | |
|
| | Limiting hole | 403 | |
|
| 20 | |
404 | |
|
| 201 | |
50 | Connecting |
|
| 201a | Mounting through |
501 | |
|
| 30 | |
502 | |
|
| 301 | |
503 | Bearing assembly |
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, 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 of the feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. 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 utility model provides an electronic expansion valve.
In an embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 3, the electronic expansion valve includes:
the valve comprises a valve body 10, wherein a valve cavity 101 is formed inside the valve body 10, and the valve body 10 is provided with a valve port 102;
the rotating assembly comprises a rotor 20 and a screw rod 30, the rotor 20 is rotatably arranged in the valve cavity 101, and the rotor 20 is connected with the screw rod 30 to drive the screw rod 30 to rotate; a fixing piece 103 for axially fixing the screw rod 30 is arranged in the valve cavity 101;
the valve needle 40 is used for sealing the valve port 102, the valve needle 40 is provided with a threaded hole 401, the threaded hole 401 extends towards the direction close to the valve port 102, and one end, far away from the rotor 20, of the screw rod 30 is inserted into the threaded hole 401; an anti-rotation component is arranged between the outer wall of the valve 40 needle and the inner wall of the valve cavity 101, the anti-rotation component comprises an anti-rotation block 402 and an anti-rotation groove 502, at least one of the anti-rotation block 402 and the anti-rotation groove 502 extends along the axial direction of the valve cavity 101, and the anti-rotation block 402 is connected with the anti-rotation groove 502 in a sliding mode so as to limit circumferential rotation of the valve needle 40; the screw rod 30 rotates to drive the valve needle 40 to move back and forth along the axial direction so as to open or close the valve port 102;
a first stopping portion 403 is arranged at one end of the valve needle 40 away from the valve port 102, a second stopping portion 301 is arranged in the screw rod 30 and/or the valve cavity 101, and the second stopping portion 301 is used for abutting against the first stopping portion 403.
The valve body 10 generally has a connecting seat 50 for mounting the valve needle 40, the connecting seat 50 has a guide hole 501 extending toward the valve port 102, the valve needle 40 is inserted into the guide hole 501, and the rotation-preventing component is disposed between an outer wall of the valve needle and an inner wall of the guide hole.
The technical scheme of the utility model setting up first backstop portion 403 through the one end of keeping away from valve port 102 at needle 40, and set up second backstop portion 301 that offsets with first backstop portion 403 at lead screw 30, when needle 40 upwards moves to valve port 102 and is in the state of opening completely, first backstop portion 403 offsets with second backstop portion 301, can restrict further rebound of needle 40, compare with current electronic expansion valve, need not set up corresponding backstop part on the terminal surface of connecting seat 50, can reduce the height of connecting seat 50, and then reduce the holistic height of electronic expansion valve, make electronic expansion valve's structure compacter, the volume is littleer.
Specifically, referring to fig. 7, the rotation prevention blocks 402 are two, the two rotation prevention blocks 402 are symmetrically disposed on the valve needle 40, and when the two rotation prevention blocks 402 are symmetrically disposed on the valve needle, the forces on the two sides of the valve needle 40 can be balanced, so that the structural stability of the valve needle 40 can be improved, and the smoothness of movement of the valve needle 40 can be improved.
Specifically, referring to fig. 1, a bearing 503 is disposed on an inner wall of the valve cavity 101, the lead screw 30 is provided with a connecting block 302 connected to the bearing 503, since the lead screw 30 needs to rotate to drive the valve needle 40 to move, the bearing 503 can improve the smoothness of rotation of the lead screw 30, prevent the lead screw 30 from being jammed, further improve the smoothness of movement of the valve needle 40, and facilitate control over opening and closing of the valve port 102.
Referring to fig. 3, the second stopping portion 301 is disposed on the connecting block 302, and the connecting block 302 is cylindrical, and it is not necessary to add other corresponding structures to abut against the first stopping portion 403, so that the structure of the electronic expansion valve is more compact, the overall weight of the electronic expansion valve is reduced, and the new energy vehicle runs more stably.
Specifically, referring to fig. 1, the rotor 20 is provided with a connecting piece 201 connected with the screw rod 30, the connecting piece 201 is generally connected with the rotor 20 in an inserting manner, the connecting piece 201 is provided with an installation through hole 201a, one end of the screw rod 30 far away from the valve needle 40 penetrates through the installation through hole 201a, generally, a coil is arranged outside the valve body 10, the coil and the rotor 20 form a motor, the connecting piece 201 rotates along with the rotor 20, and then the screw rod 30 can be driven to rotate so as to drive the valve needle 40 to move, and the overall structure is simple and reliable, and the operation is stable.
Specifically, referring to fig. 1, the fixing member 103 is provided with a limiting hole 103a, one end of the screw rod 30, which is away from the valve needle 40, passes through the mounting through hole 201a, one end of the screw rod 30, which is away from the valve needle 40, is inserted into the limiting hole 103a, when the screw rod 30 is mounted, one end of the screw rod 30, which is away from the valve needle 40, passes through the mounting through hole 201a, and one end of the screw rod 30, which is away from the valve needle 40, is inserted into the limiting hole 103a, so that the axial position of the screw rod 30 can be limited, the mounting and fixing of the screw rod 30 are completed, the operation is simple, the mounting is quick, and the assembly efficiency of the electronic expansion valve can be improved.
In an embodiment of the present application, please refer to fig. 2 and fig. 3 together, the rotation preventing block 402 is disposed on an end surface of the valve needle 40 far away from the valve port 102, the rotation preventing groove 502 is disposed on an inner wall of the guiding hole 501 of the connecting seat 50, the end surface of the valve needle 40 far away from the valve port 102 is provided with a protrusion 404 extending toward the second stopping portion 301, the rotation preventing block 402 and the valve needle 40 are in a split structure, the first stopping portion 403 is disposed on the protrusion 404, the length of the protrusion 404 protruding toward the second stopping portion 301 from the rotation preventing block 402 is greater than 0.5 mm, the valve needle 40 can be limited by the first stopping portion 403 on the protrusion 404 abutting against the second stopping portion 301, and experiments in various cases prove that the embodiment can ensure good stopping performance under the condition of satisfying the superposition of comprehensive factors such as part processing error, assembly error, operation deformation, etc., the overall volume and weight of the electronic expansion valve are reduced, and the displacement stroke of the valve needle 40 can be limited.
In another embodiment of the present application, please refer to fig. 4, the anti-rotation block 402 is disposed on an end surface of the valve needle 40 far away from the valve port 102, the anti-rotation groove 502 is disposed on an inner wall of the guide hole 501 of the connecting seat 50, a protrusion 404 extending toward the direction of the second stopping portion 301 is disposed on an end surface of the valve needle 40 far away from the valve port 102, the anti-rotation block 402 and the valve needle 40 are in a split structure, the first stopping portion 403 is disposed on the anti-rotation block 402, and the length of the anti-rotation block 402 protruding from the protrusion 404 toward the direction of the second stopping portion 301 is greater than 0.5 mm.
In another embodiment of the present application, please refer to fig. 5, the rotation preventing block 402 is disposed on an end surface of the valve needle 40 far from the end of the valve port 102, the rotation preventing groove 502 is disposed on an inner wall of the guiding hole 501 of the connecting seat 50, the rotation preventing block 402 and the valve needle 40 are an integrated structure, the first stopping portion 403 is disposed on the rotation preventing block 402, the rotation preventing block 402 is located on the end surface of the valve needle 40, and the first stopping portion on the rotation preventing block 402 can abut against the second stopping portion 301, so as to limit a displacement stroke of the valve needle 40, on one hand, the overall volume weight of the electronic expansion valve is reduced, and on the other hand, the displacement stroke of the valve needle 40 can be limited.
In another embodiment of the present application, please refer to fig. 6, the rotation preventing block 402 is disposed on an end surface of the valve needle 40 far away from the valve port 102, the rotation preventing groove 502 is disposed on an inner wall of the guiding hole 501 of the connecting seat 50, a protrusion 404 extending toward the second stopping portion 301 is disposed on the end surface of the valve needle 40 far away from the valve port 102, the protrusion 404 protrudes out of the rotation preventing block 402, the rotation preventing block 402 and the valve needle 40 are integrally formed, the first stopping portion 403 is disposed on the protrusion 404, because the protrusion 404 protrudes out of the rotation preventing block 402, the first stopping portion 403 on the protrusion 404 can abut against the second stopping portion 301 to limit a displacement stroke of the valve needle 40, so as to reduce an overall volume and a weight of the electronic expansion valve, and further, it can be ensured that the displacement stroke of the valve needle 40 can be limited.
The utility model discloses still provide a refrigeration plant, this refrigeration plant includes electronic expansion valve, and this electronic expansion valve's concrete structure refers to above-mentioned embodiment, because this refrigeration plant has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, no longer gives unnecessary detail here.
Because the new energy automobile is developed rapidly at present, the endurance mileage of the battery of the new energy automobile also becomes one of the bottlenecks restricting the further rapid development of the new energy automobile, and under the condition of the same battery, the performance of the automobile air conditioner is improved, the weight of the whole automobile is reduced, and the endurance mileage can be improved. Therefore, the new energy automobile industry needs to be researched and developed towards integration and light weight at present, and the volume and weight of the refrigeration equipment can influence the performance of the new energy automobile.
To this, the utility model discloses still provide a device of traveling, the device of traveling can be for new energy automobile, thoughtlessly move the car etc. and this device of traveling includes refrigeration plant, and this refrigeration plant's concrete structure refers to above-mentioned embodiment, because this device of traveling has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is not given here again.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. An electronic expansion valve, comprising:
the valve comprises a valve body, a valve cavity and a valve seat, wherein the valve cavity is formed inside the valve body;
the rotating assembly comprises a rotor and a screw rod, the rotor is rotatably arranged in the valve cavity, and the rotor is connected with the screw rod so as to drive the screw rod to rotate; a fixing piece for axially fixing the screw rod is arranged in the valve cavity;
the valve needle is used for plugging the valve port, a threaded hole is formed in the valve needle, and one end, far away from the rotor, of the screw rod is inserted into the threaded hole; an anti-rotation assembly is arranged between the outer wall of the valve needle and the inner wall of the valve cavity and comprises an anti-rotation block and an anti-rotation groove, at least one of the anti-rotation block and the anti-rotation groove extends in the axial direction of the valve cavity, and the anti-rotation block is connected with the anti-rotation groove in a sliding mode so as to limit the valve needle to rotate in the circumferential direction; the screw rod rotates to drive the valve needle to move back and forth along the axial direction so as to open or close the valve port;
a first stopping part is arranged at one end of the valve needle far away from the valve port, a second stopping part is arranged in the screw rod and/or the valve cavity, and the second stopping part is used for abutting against the first stopping part;
the anti-rotation block is arranged on the end surface of the valve needle far away from one end of the valve port, and a protrusion extending towards the direction close to the second stopping part is arranged on the end surface of the valve needle far away from one end of the valve port;
the first stopping part is arranged on the rotation preventing block, and the length of the rotation preventing block protruding out of the protrusion is larger than 0.5 mm towards the direction close to the second stopping part.
2. The electronic expansion valve of claim 1, wherein the first stop portion is disposed on the protrusion, and the length of the protrusion protruding from the anti-rotation block toward the second stop portion is greater than 0.5 mm.
3. The electronic expansion valve according to any of claims 1-2, wherein the valve needle and the anti-rotation block are of an integrally formed structure.
4. The electronic expansion valve of claim 1, wherein there are two anti-rotation blocks, and the two anti-rotation blocks are symmetrically disposed on the valve needle.
5. The electronic expansion valve of claim 1, wherein the inner wall of the valve chamber is provided with a bearing, and the screw rod is provided with a connecting block connected with the bearing.
6. The electronic expansion valve according to claim 5, wherein the second stopper is disposed on the connection block.
7. The electronic expansion valve according to claim 1, wherein the rotor is provided with a connecting piece connected with the screw rod, the connecting piece is provided with a mounting through hole, and one end of the screw rod, which is far away from the valve needle, is arranged through the mounting through hole.
8. The electronic expansion valve according to claim 7, wherein the fixing member has a position-limiting hole, and an end of the screw rod away from the valve needle passes through the mounting through hole and is inserted into the position-limiting hole.
9. Refrigeration device, characterized in that it comprises an electronic expansion valve according to any of claims 1 to 8.
10. A running gear, characterized in that the running gear comprises a refrigerating device as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220726683.9U CN217301619U (en) | 2022-03-30 | 2022-03-30 | Electronic expansion valve, refrigeration equipment and running device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220726683.9U CN217301619U (en) | 2022-03-30 | 2022-03-30 | Electronic expansion valve, refrigeration equipment and running device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217301619U true CN217301619U (en) | 2022-08-26 |
Family
ID=82936035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220726683.9U Active CN217301619U (en) | 2022-03-30 | 2022-03-30 | Electronic expansion valve, refrigeration equipment and running device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217301619U (en) |
-
2022
- 2022-03-30 CN CN202220726683.9U patent/CN217301619U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |