CN214429346U - Novel multipole magnet - Google Patents
Novel multipole magnet Download PDFInfo
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- CN214429346U CN214429346U CN202121896320.1U CN202121896320U CN214429346U CN 214429346 U CN214429346 U CN 214429346U CN 202121896320 U CN202121896320 U CN 202121896320U CN 214429346 U CN214429346 U CN 214429346U
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Abstract
The utility model discloses a novel multipole magnet, including the magnet body, the transversal tile shape of personally submitting of magnet body, a magnetism differentiation recess has been seted up to the magnet body inside wall. The magnetic distinguishing groove is arranged at the central symmetry position of the adjacent magnetic poles on the inner side wall of the magnet body. The width of the magnetic distinguishing groove is the same as the thickness of the magnet body. The utility model discloses an increase recess differentiation polarity at multipolar magnetic material's adjacent utmost point center, having kept the monolithic magnet characteristic, simplified magnet and mounting process, can also optimize and magnetize the magnetism magnetic circuit, can effectively improve the motor performance, show and improve the motor noise. Furthermore, can utilize the utility model discloses a multipolar magnet preparation electric motor rotor, the width increases to the width the same with monolithic magnet recess between electric motor rotor's the multipolar magnet to reach the even purpose of magnetic circuit and the same effect of magnet of equipartition.
Description
Technical Field
The utility model relates to a magnet technical field especially relates to a novel multipolar magnet.
Background
In the field of rotor aviation, machine tool manufacturing and other industries, multipolar magnets are used for manufacturing permanent magnet rotors in motors, electromagnetic couplings, speed reducers and brakes.
In the production of electric machines with permanent magnets, it is a very important task to improve the specific electromechanical properties (power, torque, electromotive force and other properties emitted per unit mass of the machine) of the electric machine.
The method that can be used to accomplish this task is to increase the excitation flux (and thus the magnetic tracks) generated by the multi-pole rotor of the motor by using an anisotropic hard magnetic material with optimal magnetic properties to fabricate the magnets forming the rotor, more fully utilizing the volume of the rotor to arrange the magnets and optimizing the magnetic orientation of the magnets.
However, in the actual operation process of motor rotor installation, the installation of the single magnet is very inconvenient, and the magnetic circuit distribution between the two magnets is uneven easily caused during installation, so that the performance of the motor is poor, and the noise of the motor is increased.
Patent application for application number CN201520552095.8 discloses a many transmission magnet of annular, including the magnet body, the cross-section of magnet body is the annular, and magnet body annular array has two at least magnetic poles, and the surface cladding of magnet body has the electroplating protective layer. According to the technical scheme, the electroplating protective layer is coated on the outer surface of the magnet body, so that the surface of the magnet can be stabilized, and the annular multi-pole transmission magnet has extremely high weather resistance and excellent corrosion resistance, but has the problem of inconvenient installation.
Still like patent application for CN201520552110.9 discloses a multipolar transmission magnet convenient to installation, including the magnet body, the transversal annular of personally submitting of magnet body, and at least one constant head tank has been seted up to the lateral wall of magnet body, and magnet body annular array has two at least magnetic poles, and the surface cladding of magnet body has the electroplating protective layer. The utility model discloses a multipolar transmission magnet can be rotatory through magnetic drive stirring shuttle for the dismouting and the washing convenience of stirring shuttle. According to the multi-pole transmission magnet, the two positioning grooves are formed in the outer side wall of the magnet body, so that although the installation process of the magnet is optimized, the magnet structure has the problem that a magnetizing magnetic circuit cannot be optimized, and further improvement is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a novel multipolar magnet, when keeping the monolithic magnet characteristic, simplified the magnet mounting structure and the installation method of electron rotor, can effectively improve the motor performance, show to improve the motor noise.
The purpose of the utility model is realized through the following technical scheme:
a novel multi-pole magnet comprises a magnet body, wherein the cross section of the magnet body is tile-shaped, and a magnetic distinguishing groove is formed in the inner side wall of the magnet body.
Specifically, the cross section of the magnet body can also be in a strip shape, a ring shape or a circular arc shape.
Specifically, the magnetic distinguishing groove is formed in the central symmetry position of the adjacent magnetic poles on the inner side wall of the magnet body.
Specifically, the width of the magnetic separation groove is the same as the thickness of the magnet body.
Specifically, the magnet body has two magnetic pole arrays, and each magnetic pole array comprises an N pole and an S pole.
The utility model has the advantages that:
1. the utility model discloses an increase recess differentiation polarity at multipolar magnetic material's adjacent utmost point center, be remaining the monolithic magnet characteristic, simplified magnet and mounting process.
2. The magnet structure designed by the utility model can optimize the magnetizing magnetic circuit, effectively improve the performance of the motor and obviously improve the noise of the motor;
3. the utility model discloses increase the width between electric motor rotor's the multipolar magnet to the width the same with the monolithic magnet recess to reach the even purpose of magnetic circuit and the same effect of magnet of equipartition.
Drawings
Fig. 1 is a schematic view of the structure of the multi-pole magnet of the present invention.
Fig. 2 is a schematic structural view of the motor rotor of the present invention.
Fig. 3 is a cross-sectional view of the rotor of the motor of the present invention taken along a-a.
In the drawings: 1-magnet body, 2-magnetic distinguishing groove, 3-motor rotor.
Detailed Description
In order to clearly understand the technical features, objects and effects of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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.
The first embodiment is as follows:
in this embodiment, as shown in fig. 1, a novel multi-pole magnet includes a magnet body, a cross section of the magnet body is tile-shaped, and a magnetic distinguishing groove is formed in an inner side wall of the magnet body.
In this embodiment, the cross section of the magnet body may also be in the shape of a long strip, a ring, or a circular arc.
In this embodiment, the magnetic separation groove is specifically formed at the centrosymmetric position of the adjacent magnetic poles on the inner side wall of the magnet body.
In this embodiment, the width of the magnetic separation groove is the same as the thickness of the magnet body.
In this embodiment, the magnet body has two magnetic pole arrays, each magnetic pole array including an N pole and an S pole.
The embodiment can achieve the following technical effects:
in the embodiment, the groove is added in the center of the adjacent poles of the multi-pole magnetic material to distinguish the polarity, so that the characteristic of a single-piece magnet is kept, and the magnet and the mounting process are simplified.
Example two:
in this embodiment, as shown in fig. 2 and 3, a motor rotor is further provided, and the motor rotor is mounted by using the multi-pole magnets, and includes a rotor housing, where multiple multi-pole magnets are mounted inside the rotor housing, and a width between each multi-pole magnet is the same as a width of the magnetic separation groove.
In the embodiment, the motor rotor is made of the multi-pole magnet, so that the magnet mounting structure and the magnet mounting method of the electronic rotor are simplified while the characteristic of a single magnet is kept, the performance of the motor can be effectively improved, and the noise of the motor is obviously improved.
The embodiment can achieve the following technical effects:
1. in the embodiment, the groove is added in the center of the adjacent poles of the multi-pole magnetic material to distinguish the polarity, so that the characteristic of a single-piece magnet is kept; 2. the magnet structure designed by the embodiment can optimize the magnetizing magnetic circuit, effectively improve the performance of the motor and obviously improve the noise of the motor;
3. the embodiment increases the width between the multipolar magnet of the motor rotor to the width same as that of the single-piece magnet groove so as to achieve the purpose of uniform magnetic circuit and the effect same as that of the uniformly distributed magnet.
Example three:
in this embodiment, still provide a motor rotor, adopt above-mentioned multipolar magnet to install, motor rotor includes rotor housing, and rotor housing internally mounted has polylith multipolar magnet, and the width of the recess is the same with magnetism differentiation between every multipolar magnet.
In this embodiment, the installation process of the multi-pole magnet in the motor rotor is as follows:
1. magnet glue (TBD) is coated on the surface of the outer circle of the magnet and is placed on a fixed clamp to fix the magnet in place, and the glue of each magnet is ensured to be 0.05-0.08 g.
2. The magnet glue is dried by a high-frequency oven, and the magnet is ensured to be not damaged in the process.
3. After the magnet adhesive is dried and cooled, testing the magnet, wherein the testing standard is as follows: at least 100Kgf thrust is applied to the magnet in the vertical direction, and the magnet is not displaced and falls off.
4. And magnetizing the magnet, wherein the magnetizing directions are kept consistent, and the phenomenon of demagnetization is avoided.
5. The magnetizing and magnetizing of the magnetic bottom must reach saturation, and the magnetic value of the center of the magnetic bottom after saturation is TBD% gauss.
6. The magnetic bottom is free from magnetic fragments or impurities.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A novel multi-pole magnet is characterized by comprising a magnet body, wherein the cross section of the magnet body is tile-shaped, long-strip-shaped, annular or circular arc-shaped, and a magnetic distinguishing groove is formed in the inner side wall of the magnet body; the magnetic distinguishing groove is particularly formed in the centrosymmetric position of adjacent magnetic poles on the inner side wall of the magnet body; the width of the magnetic distinguishing groove is the same as the thickness of the magnet body; the magnet body has two magnetic pole arrays, and each magnetic pole array comprises an N pole and an S pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121896320.1U CN214429346U (en) | 2021-08-13 | 2021-08-13 | Novel multipole magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121896320.1U CN214429346U (en) | 2021-08-13 | 2021-08-13 | Novel multipole magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214429346U true CN214429346U (en) | 2021-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121896320.1U Active CN214429346U (en) | 2021-08-13 | 2021-08-13 | Novel multipole magnet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023524A (en) * | 2022-01-04 | 2022-02-08 | 绵阳和一磁电有限公司 | Thin-wall inner circle oriented multi-pole magnetic ring and manufacturing method thereof |
-
2021
- 2021-08-13 CN CN202121896320.1U patent/CN214429346U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114023524A (en) * | 2022-01-04 | 2022-02-08 | 绵阳和一磁电有限公司 | Thin-wall inner circle oriented multi-pole magnetic ring and manufacturing method thereof |
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