CN218335455U - Brushless alternating current servo motor of light noise - Google Patents
Brushless alternating current servo motor of light noise Download PDFInfo
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- CN218335455U CN218335455U CN202222730663.1U CN202222730663U CN218335455U CN 218335455 U CN218335455 U CN 218335455U CN 202222730663 U CN202222730663 U CN 202222730663U CN 218335455 U CN218335455 U CN 218335455U
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Abstract
The utility model relates to a motor field, concretely relates to brushless AC servo motor of light noise, including stator and rotor, the cross-section of stator is the hexagon of equal asymmetry about one, its inside is provided with the first magnetic pole of a plurality of along same centre of a circle symmetric distribution, be provided with a plurality of second magnetic pole along same centre of a circle symmetric distribution on the rotor, the quantity of second magnetic pole is less than the quantity of first magnetic pole, when the rotor rotates the central line of two second magnetic poles of arbitrary symmetry and the central line coincidence of two first magnetic poles of arbitrary symmetry, the central line of other first magnetic poles all does not coincide with the central line of other second magnetic poles. The utility model relates to a rationally, compare with traditional motor, because the reduction that the first magnetic pole of stator and the second magnetic pole of rotor overlapped to radial force reduces, receives radial force and leads to the condition of stator deformation vibration and noise also can reduce.
Description
Technical Field
The utility model relates to the field of electric machines, especially, relate to a brushless AC servo motor of light noise.
Background
The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law. The motor is of various types, and can be divided into a direct current motor and an alternating current motor according to the type of a power supply, and the direct current motor can be further divided into a brushless direct current motor, a variable frequency speed control motor, a switched reluctance motor and the like. There are brushless ac motors, brush ac motors, and the like. Whatever the type of motor, there are problems of noise and vibration of the mechanical mechanism. The main reason is that the main magnetic flux in the motor enters the air gap in the radial direction and generates radial force on the stator and the rotor, thereby causing electromagnetic vibration and noise, but the existing motor has no structural design for the stator and the rotor to reduce the noise.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a brushless AC servo motor of light noise.
In order to realize the purpose, the following technical scheme is adopted:
the utility model provides a brushless AC servo motor of light noise, includes stator and rotor, the cross-section of stator is the hexagon of an equal asymmetry about from top to bottom, and its inside is provided with a plurality of first magnetic pole along same centre of a circle symmetric distribution, be provided with a plurality of second magnetic pole along same centre of a circle symmetric distribution on the rotor, the quantity of second magnetic pole is less than the quantity of first magnetic pole the rotor rotates to arbitrary two of symmetry the central line of second magnetic pole and arbitrary two of symmetry when the central line of first magnetic pole coincides, other the central line of first magnetic pole with other the central line of second magnetic pole all does not coincide.
Further, the first magnetic pole and the second magnetic pole are both trapezoidal. The trapezoidal shape has better strength than other shapes such as U-shape.
Furthermore, the angles of the virtual included angles formed by the first magnetic pole and the second magnetic pole extending inwards are equal. The slot space between the first poles can be maximized to reduce copper losses, resulting in a narrowing of the pole arc.
Furthermore, the number of the first magnetic poles is eight, and the number of the second magnetic poles is six.
Furthermore, a round hole is formed in the second magnetic pole. The round hole is arranged so that the magnetic flux is deformed during operation to reduce radial force, and generally speaking, the round hole is arranged at the upper left corner of the second magnetic pole.
Adopt above-mentioned scheme, the beneficial effects of the utility model are that:
this scheme reasonable in design compares with traditional motor, because the reduction that the first magnetic pole of stator and the second magnetic pole of rotor overlapped to radial force reduces, receives radial force and leads to the condition of stator deformation vibration and noise also to reduce.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and 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 drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Wherein the figures identify the description:
1. a stator; 2. a rotor; 3. a first magnetic pole; 4. a second magnetic pole; 5. a circular hole.
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.
Referring to fig. 1, a brushless ac servo motor with light noise includes a stator 1 and a rotor 2, the cross section of the stator 1 is a hexagon with asymmetric upper, lower, left and right sides, a plurality of first magnetic poles 3 symmetrically distributed along the same center of circle are disposed inside the stator, a plurality of second magnetic poles 4 symmetrically distributed along the same center of circle are disposed on the rotor 2, the number of the second magnetic poles 4 is less than that of the first magnetic poles 3, when the rotor 2 rotates to the center line of any two symmetrical second magnetic poles 4 coincides with the center line of any two symmetrical first magnetic poles 3, the center lines of other first magnetic poles 3 do not coincide with the center lines of other second magnetic poles 4.
The first magnetic pole 3 and the second magnetic pole 4 are both trapezoidal. The trapezoidal shape has better strength than other shapes such as a U-shape.
The angles of the virtual included angles formed by the inward extension of the first magnetic pole 3 and the second magnetic pole 4 are equal. The slot space between the first poles 3 can be maximized to reduce copper loss, so that the pole arc is narrowed.
The number of the first magnetic poles 3 is eight, and the number of the second magnetic poles 4 is six.
A circular hole 5 is formed in the second magnetic pole 4. A circular hole 5 is provided for the magnetic flux to deform during operation, reducing radial forces, which circular hole 5 is generally arranged in the upper left corner of the second pole 4.
The working principle is as follows: the stator 1 adopts an asymmetric hexagonal structure, and a magnetic yoke of the stator 1 is in a hexagon which is asymmetric on the left, the right, the upper and the lower, so that the mechanical strength of the stator 1 is increased, and vibration caused by radial force is resisted; the overlapping of the first magnetic pole 3 of the stator 1 and the second magnetic pole 4 of the rotor 2 is reduced, so that the radial force is reduced, and the situation that the stator 1 deforms and vibrates and the noise is reduced due to the radial force is also reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides a brushless AC servo motor of light noise, its characterized in that, includes stator and rotor, the cross-section of stator is the hexagon of equal asymmetry about one, and its inside is provided with a plurality of first magnetic pole along same centre of a circle symmetric distribution, be provided with a plurality of second magnetic pole along same centre of a circle symmetric distribution on the rotor, the quantity of second magnetic pole is less than the quantity of first magnetic pole the rotor rotates to arbitrary two of symmetry the central line of second magnetic pole and arbitrary two of symmetry when the central line of first magnetic pole coincides, other the central line of first magnetic pole with other the central line of second magnetic pole all do not coincide.
2. The light-noise brushless a-c servo motor of claim 1, wherein the first and second magnetic poles are each trapezoidal in shape.
3. The brushless ac servo motor of claim 2, wherein the first and second magnetic poles extend inwardly to form virtual angles that are equal in angle.
4. The brushless ac servo motor of claim 1, wherein the number of the first magnetic poles is eight and the number of the second magnetic poles is six.
5. The light-noise brushless ac servo motor of claim 1, wherein a circular hole is formed in the second magnetic pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222730663.1U CN218335455U (en) | 2022-10-17 | 2022-10-17 | Brushless alternating current servo motor of light noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222730663.1U CN218335455U (en) | 2022-10-17 | 2022-10-17 | Brushless alternating current servo motor of light noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218335455U true CN218335455U (en) | 2023-01-17 |
Family
ID=84825182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222730663.1U Active CN218335455U (en) | 2022-10-17 | 2022-10-17 | Brushless alternating current servo motor of light noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218335455U (en) |
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2022
- 2022-10-17 CN CN202222730663.1U patent/CN218335455U/en active Active
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