CN215371217U - Magnetic ring and rotor core assembly of electronic expansion valve - Google Patents
Magnetic ring and rotor core assembly of electronic expansion valve Download PDFInfo
- Publication number
- CN215371217U CN215371217U CN202121839353.2U CN202121839353U CN215371217U CN 215371217 U CN215371217 U CN 215371217U CN 202121839353 U CN202121839353 U CN 202121839353U CN 215371217 U CN215371217 U CN 215371217U
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- rotor core
- magnetic ring
- positioning
- clamp spring
- expansion valve
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Abstract
A magnetic ring and rotor core assembly of an electronic expansion valve comprises a magnetic ring and a rotor core, wherein a valve rod thread cavity and a valve needle cavity are arranged on the rotor core, the rotor core is arranged in the magnetic ring, and the magnetic ring and the rotor core rotate together; at least two positioning grooves are arranged in one end of the magnetic ring; one end of the rotor core is provided with at least two positioning blocks, and the other end of the rotor core is provided with an annular clamping groove; the positioning block is embedded with the positioning groove, the clamp spring is embedded with the annular clamping groove, and the end part of the magnetic ring is attached to one axial end of the clamp spring. By adopting the structure, the thickness of the magnetic ring is uniform, the thickness maintaining strength does not need to be increased like the prior art, the cost is reduced, the strength of the magnetic ring is high, the magnetic lines of force are uniformly distributed, and the performance is stable.
Description
Technical Field
The utility model relates to an electronic expansion valve, in particular to a magnetic ring and rotor core assembly.
Background
In the prior art, as shown in fig. 1, a magnetic ring and rotor core assembly of an electronic expansion valve includes a magnetic ring 1 and a rotor core 2, a valve rod thread cavity and a valve needle cavity are arranged on the rotor core 2, at least two axial slots 11 are arranged in the magnetic ring 1, and the length of the axial slots 11 is adapted to the length of the magnetic ring 1; at least two axial positioning bulges 21 are arranged on the circumferential surface of the rotor core 2, the rotor core 2 is arranged in the magnetic ring 1, the axial positioning bulges 21 are embedded with the axial grooves 11, and the magnetic ring 1 and the rotor core 2 rotate together. There are problems in that: the thickness of the inner side wall of the magnetic ring is inconsistent, so that the phenomenon that the distribution of an internal magnetic field is uneven can be caused, and the fluctuation of the whole expansion valve during working can be larger due to the phenomenon, so that the performance of the expansion valve is influenced.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: the magnetic ring and rotor core assembly of electronic expansion valve has the features of homogeneous magnetic force line distribution, low cost and reliable quality.
The utility model is realized by the following steps: a magnetic ring and rotor core assembly of an electronic expansion valve comprises a magnetic ring and a rotor core, wherein a valve rod thread cavity and a valve needle cavity are arranged on the rotor core, the rotor core is arranged in the magnetic ring, and the magnetic ring and the rotor core rotate together; it is characterized in that: at least two positioning grooves are arranged in one end of the magnetic ring;
one end of the rotor core is provided with at least two positioning blocks, and the other end of the rotor core is provided with an annular clamping groove;
also comprises a clamp spring which is provided with a clamp spring,
the positioning block is embedded with the positioning groove, the clamp spring is embedded with the annular clamping groove, and the end part of the magnetic ring is attached to one axial end of the clamp spring.
The magnetic ring and rotor core assembly of the electronic expansion valve has the advantages that due to the adoption of the structure, the thickness of the magnetic ring is uniform, the thickness maintaining strength is not required to be increased like the prior art, the cost is reduced, the strength of the magnetic ring is high, the distribution of magnetic lines of force is uniform, and the performance is stable.
Drawings
Fig. 1 is an exploded perspective view of the prior art.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a perspective view of a rotor core of the present invention.
Fig. 4 is a perspective view of the magnet ring of the present invention.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 2, a magnetic ring and rotor core assembly of an electronic expansion valve comprises a magnetic ring 1 and a rotor core 2, wherein a valve rod thread cavity 22 and a valve needle cavity 23 are arranged on the rotor core 2, the rotor core 2 is arranged in the magnetic ring 1, and the magnetic ring 1 and the rotor core 2 rotate together;
two positioning grooves 12 are arranged in one end of the magnetic ring 1, and the two positioning grooves 12 are arranged on a diameter line;
one end of the rotor core 2 is provided with two positioning blocks 24, and the other end is provided with an annular clamping groove 25; the rotor core 2 consists of two half bodies, and a positioning block, a half valve rod thread cavity and a half valve needle cavity are arranged on each half body;
also comprises a clamp spring 3 which is provided with a clamp spring,
the positioning block 24 is embedded with the positioning groove 12, the clamp spring 3 is embedded with the annular clamping groove 25, and the end part of the magnetic ring 1 is attached to one axial end of the clamp spring 3.
What has been described above is merely a preferred embodiment of the present invention. It should be noted that a person skilled in the art could make several modifications and variations without departing from the principle of the present invention, which should also be regarded as the protection scope of the present invention.
Claims (1)
1. A magnetic ring and rotor core assembly of an electronic expansion valve comprises a magnetic ring and a rotor core, wherein a valve rod thread cavity and a valve needle cavity are arranged on the rotor core, the rotor core is arranged in the magnetic ring, and the magnetic ring and the rotor core rotate together; the method is characterized in that: at least two positioning grooves are arranged in one end of the magnetic ring;
one end of the rotor core is provided with at least two positioning blocks, and the other end of the rotor core is provided with an annular clamping groove;
also comprises a clamp spring which is provided with a clamp spring,
the positioning block is embedded with the positioning groove, the clamp spring is embedded with the annular clamping groove, and the end part of the magnetic ring is attached to one axial end of the clamp spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121839353.2U CN215371217U (en) | 2021-08-06 | 2021-08-06 | Magnetic ring and rotor core assembly of electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121839353.2U CN215371217U (en) | 2021-08-06 | 2021-08-06 | Magnetic ring and rotor core assembly of electronic expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215371217U true CN215371217U (en) | 2021-12-31 |
Family
ID=79616365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121839353.2U Active CN215371217U (en) | 2021-08-06 | 2021-08-06 | Magnetic ring and rotor core assembly of electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215371217U (en) |
-
2021
- 2021-08-06 CN CN202121839353.2U patent/CN215371217U/en active Active
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| GR01 | Patent grant |