CN214227962U - Permanent magnet embedded motor magnet structure - Google Patents
Permanent magnet embedded motor magnet structure Download PDFInfo
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- CN214227962U CN214227962U CN202120369611.9U CN202120369611U CN214227962U CN 214227962 U CN214227962 U CN 214227962U CN 202120369611 U CN202120369611 U CN 202120369611U CN 214227962 U CN214227962 U CN 214227962U
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Abstract
The utility model discloses a permanent magnet embedded motor magnet structure, which comprises a magnet gathering mechanism, wherein the magnet gathering mechanism is formed by uniformly surrounding a plurality of magnet gathering components, the magnetic poles of the magnet gathering components all point to the center of the magnet gathering mechanism, and the magnetic poles of the adjacent magnet gathering components point to the center of the magnet gathering mechanism are opposite; the shell is arranged on the outer ring of the magnetism gathering mechanism and is formed by injection molding on the magnetism gathering mechanism. The utility model discloses can have higher air gap magnetic density and torque density in less volume, can also produce reluctance torque, further improve motor torque density to can effectively reduce the motor volume, simultaneously, the shell is through moulding plastics on gathering magnetic mechanism and forming, and the material of shell is the LCP plastic, can effectively prevent the magnetic leakage, has the advantage that improves the motor performance.
Description
Technical Field
The utility model relates to the technical field of electric machines, specifically be a permanent magnetism imbeds formula motor magnet structure.
Background
An electric machine typically includes a stator fixed to a housing and a rotor movable relative to the stator. For example, the rotor may be supported such that it is rotatable relative to the stator or such that it is linearly movable relative to the stator, and the electrical machine is classified as an electromechanical energy converter and may be used as an electrical motor or a generator.
With the development of modern industrial technology, a large number of working occasions require the motor to operate at a low speed and provide a high torque. In order to realize the low-speed operation of the motor, a power supply with lower working frequency is adopted to supply power to the asynchronous motor or increase the pole pair number of the asynchronous motor, the low-frequency power supply needs expensive power electronic equipment such as an inverter and the like, the influence is not favorable for the stable operation of the motor, the leakage inductance is overlarge due to the increase of the pole pair number of the motor at one step, the power factor of the motor is reduced, although the permanent magnet motor does not need to adopt an electric excitation mode, the leakage flux is too much due to the excessive number of the pole pair numbers of the permanent magnet, and the motor output is lost; according to the motor design theory, the torque of the motor is approximately proportional to the motor volume, which means that the large-torque motor has larger volume, larger occupied space, more materials used by the motor and higher cost. Therefore, the traditional industry mostly adopts a mechanical transmission mechanism such as a gear box and the like to match the rotating speed and the torque of the motor and the load. But the inherent defects of the motor system such as vibration, noise, metal fatigue and the like greatly reduce the stability of the motor working system and improve the maintenance cost and the maintenance difficulty of the motor system. Therefore, it is necessary to improve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a formula motor magnet structure is buryyed to permanent magnetism possesses the advantage that improves the motor performance, has solved the problem that proposes in the above background art.
In order to achieve the above object, the utility model provides a following technical scheme: a permanent magnet embedded motor magnet structure comprises a magnet gathering mechanism, wherein the magnet gathering mechanism is formed by uniformly surrounding a plurality of magnet gathering components, magnetic poles of the magnet gathering components point to the center of the magnet gathering mechanism, and the magnetic poles of adjacent magnet gathering components point to the center of the magnet gathering mechanism are opposite; the shell is arranged on the outer ring of the magnetism gathering mechanism and is formed by injection molding on the magnetism gathering mechanism.
Preferably, the number of the magnetic gathering components is at least four, and the number of the magnetic gathering components is even.
Preferably, the magnetism gathering assembly is composed of a magnetism gathering shell and a magnet, the magnetism gathering shell is a shell with an opening on one surface, the magnet is fixedly installed in the magnetism gathering shell, and one magnetic pole of the magnet is exposed out of the magnetism gathering shell.
Preferably, the magnet is one of a neodymium iron boron magnet, a samarium cobalt magnet and an alnico magnet.
Preferably, the magnetism gathering shell is made of metal that can be attracted by a magnet.
Preferably, the housing is cylindrical, and the magnetism collecting component is tile-shaped.
Preferably, the shell is polygonal, and the magnetism gathering component is square.
Preferably, the shell is made of LCP plastic.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses a set up and gather magnetic assembly, gather magnetic assembly and constitute by gathering magnetic shell and magnet, it is one side open-ended casing to gather the magnetic shell, magnet fixed mounting is in gathering the magnetic shell, and one of them magnetic pole of magnet exposes outside gathering the magnetic shell, several gather the equal directional center of gathering magnetic mechanism of magnetic pole of magnetic assembly, and adjacent gather the directional magnetic pole of gathering magnetic mechanism center of magnetic assembly opposite, make it have higher air gap magnetism density and torque density in less volume, can also produce reluctance torque, further improved motor torque density to can effectively reduce the motor volume, simultaneously, the shell is through gathering the formation of moulding plastics on magnetic mechanism, and the material of shell is the plastic, can effectively prevent the magnetic leakage, has the advantage that improves the motor performance.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention;
fig. 4 is a schematic cross-sectional structure diagram of a second embodiment of the present invention.
The reference numerals and names in the figures are as follows:
1. a magnetism gathering component; 2. a housing; 3. a magnetism gathering shell; 4. a magnet.
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 work belong to the protection scope of the present invention.
Referring to fig. 1 to 2, the present invention provides a first embodiment: a permanent magnet embedded motor magnet structure comprises a magnet gathering mechanism, wherein the magnet gathering mechanism is formed by uniformly surrounding a plurality of magnet gathering components 1, magnetic poles of the magnet gathering components 1 point to the center of the magnet gathering mechanism, and the magnetic poles of adjacent magnet gathering components 1 pointing to the center of the magnet gathering mechanism are opposite; and the shell 2 is arranged on the outer ring of the magnetism gathering mechanism, and the shell 2 is formed by injection molding on the magnetism gathering mechanism.
More specifically, the number of the magnetic gathering components 1 is at least four, and the number of the magnetic gathering components 1 is even.
More specifically, the magnetism gathering assembly 1 is composed of a magnetism gathering shell 3 and a magnet 4, the magnetism gathering shell 3 is a shell with an opening, the magnet 4 is fixedly installed in the magnetism gathering shell 3, and one of the magnetic poles of the magnet 4 is exposed out of the magnetism gathering shell 3.
More specifically, the magnet 4 is one of a neodymium iron boron magnet, a samarium cobalt magnet, and an alnico magnet.
More specifically, the magnetism collecting case 3 is made of metal that can be attracted by a magnet.
More specifically, the housing 2 is cylindrical, and the magnetic gathering component 1 is tile-shaped.
More specifically, the material of the housing 2 is LCP plastic.
Referring to fig. 3 to fig. 4, the second embodiment of the present invention is basically the same as the first embodiment, except that: the shell 2 is polygonal, and the magnetism gathering component 1 is square.
The working principle is as follows: the utility model discloses in operation, gather the magnetism subassembly and constitute by gathering magnetism shell and magnet, it is one side open-ended casing to gather the magnetism shell, magnet fixed mounting is in gathering the magnetism shell, and one of them magnetic pole of magnet exposes outside gathering the magnetism shell, several gather the center that the magnetic pole of magnetism subassembly all points to gathering magnetism mechanism, and adjacent gather the magnetic pole that the magnetism subassembly points to gathering magnetism mechanism center opposite, make it have higher air gap magnetism density and torque density in less volume, can also produce reluctance torque, further improved motor torque density to can effectively reduce the motor volume, simultaneously, the shell is through moulding plastics the formation on gathering magnetism mechanism, and the material of shell is the LCP plastic, can effectively prevent the magnetic leakage.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A permanent magnet embedded motor magnet structure is characterized in that: comprises that
The magnetic gathering mechanism is formed by uniformly surrounding a plurality of magnetic gathering components (1), magnetic poles of the magnetic gathering components (1) point to the center of the magnetic gathering mechanism, and the magnetic poles of adjacent magnetic gathering components (1) point to the center of the magnetic gathering mechanism are opposite;
the shell (2) is arranged on the outer ring of the magnetism gathering mechanism, and the shell (2) is formed by injection molding on the magnetism gathering mechanism.
2. The permanent magnet buried motor magnet structure of claim 1, wherein: the number of the magnetism gathering assemblies (1) is at least four, and the number of the magnetism gathering assemblies (1) is even.
3. The permanent magnet buried motor magnet structure according to any one of claims 1 to 2, wherein: gather magnetism subassembly (1) and constitute by gathering magnetism shell (3) and magnet (4), gather magnetism shell (3) and be one side open-ended casing, magnet (4) fixed mounting is in gathering magnetism shell (3), and one of them magnetic pole of magnet (4) exposes outside gathering magnetism shell (3).
4. The embedded permanent magnet motor magnet structure of claim 3, wherein: the magnet (4) is one of a neodymium iron boron magnet, a samarium cobalt magnet and an alnico magnet.
5. The embedded permanent magnet motor magnet structure of claim 3, wherein: the magnetism gathering shell (3) is made of metal which can be adsorbed by a magnet.
6. The permanent magnet buried motor magnet structure of claim 1, wherein: the shell (2) is cylindrical, and the magnetism gathering component (1) is tile-shaped.
7. The permanent magnet buried motor magnet structure of claim 1, wherein: the shell (2) is polygonal, and the magnetism gathering component (1) is square.
8. The permanent magnet buried motor magnet structure of claim 1, wherein: the shell (2) is made of LCP plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120369611.9U CN214227962U (en) | 2021-02-10 | 2021-02-10 | Permanent magnet embedded motor magnet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120369611.9U CN214227962U (en) | 2021-02-10 | 2021-02-10 | Permanent magnet embedded motor magnet structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214227962U true CN214227962U (en) | 2021-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120369611.9U Active CN214227962U (en) | 2021-02-10 | 2021-02-10 | Permanent magnet embedded motor magnet structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214227962U (en) |
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2021
- 2021-02-10 CN CN202120369611.9U patent/CN214227962U/en active Active
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