CN204391921U - A kind of energy-efficient circular magnetic steel - Google Patents
A kind of energy-efficient circular magnetic steel Download PDFInfo
- Publication number
- CN204391921U CN204391921U CN201520076663.1U CN201520076663U CN204391921U CN 204391921 U CN204391921 U CN 204391921U CN 201520076663 U CN201520076663 U CN 201520076663U CN 204391921 U CN204391921 U CN 204391921U
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- magnet steel
- steel body
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- energy
- magnetic field
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Abstract
The utility model relates to a kind of energy-efficient circular magnetic steel.It comprises the magnet steel body of annular, it is characterized in that: described magnet steel body up and down wherein a sidewall be provided with the projection that two or more surfaces is circular arc, and projection is uniformly distributed along the circumferencial direction of magnet steel body.By arranging the projection that multiple surface is circular arc on the sidewall of magnet steel body, and each projection is uniformly distributed along the circumferencial direction of magnet steel body, Distribution of Magnetic Field waveform of the present utility model is made to be arc, the sinusoidal waveform that therefore can produce with stator armature electric current forms good coupling, and make armature electromagnetic field and magnet steel magnetic field obtain utilizing more fully, loss is lower, thus the whole efficiency of motor is improved, moment of torsion is larger, and motor rotation is more steady, reaches energy-conservation effect.
Description
Technical field
The utility model relates to a kind of magnet steel for disc brushless iron-core less motor, especially relates to a kind of energy-efficient circular magnetic steel.
Background technology
Magnet steel is one of parts important in motor, is normally attached on rotor module outer circumference surface and coordinates rotor module to use together.The magnet steel used in existing disc brushless iron-core less motor is generally cirque structure, and the top and bottom sidewall of magnet steel is plane, magnetic field due to this magnet steel is applicable to square wave and controls, and is not suitable for sinusoidal wave control, therefore, the Distribution of Magnetic Field waveform of this magnet steel can not form good coupling with sine-shaped stator armature current waveform, motor is not fully utilized in armature electromagnetic field and magnet steel magnetic field at work, and loss is higher, and motor runs unstable, easy shake, noise is larger.
Summary of the invention
The utility model provide a kind of on the sidewall of magnet steel body, be evenly provided with circular arc projection thus make its Distribution of Magnetic Field waveform be sinusoidal wave energy-efficient circular magnetic steel; Solve the motor existed in prior art to be not fully utilized in armature electromagnetic field and magnet steel magnetic field at work, loss is higher, and motor runs unstable, easily shakes, the technical problem of the larger grade of noise.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of energy-efficient circular magnetic steel, comprise the magnet steel body of annular, it is characterized in that: described magnet steel body up and down wherein a sidewall be provided with the projection that two or more surfaces is circular arc, and projection is uniformly distributed along the circumferencial direction of magnet steel body.By arranging the projection that multiple surface is circular arc on the sidewall of magnet steel body, and each projection is uniformly distributed along the circumferencial direction of magnet steel body, Distribution of Magnetic Field waveform of the present utility model is made to be arc, the sinusoidal waveform that therefore can produce with stator armature electric current forms good coupling, and make armature electromagnetic field and magnet steel magnetic field obtain utilizing more fully, loss is lower, thus the whole efficiency of motor is improved, moment of torsion is larger, and motor rotation is more steady, reaches energy-conservation effect.
As preferably, described projection is a watt shape.Projection is set to Distribution of Magnetic Field waveform that watt shape produces and the sinusoidal waveform matching degree that stator armature electric current produces is the highest, and make armature electromagnetic field and permanent magnet field obtain utilizing the most fully, loss is minimum, thus makes the whole efficiency of motor mention the highest.
As preferably, the described projection sidewall corresponding with magnet steel body is formed and covers completely.Be conducive to magnet steel and produce stronger curved Distribution of Magnetic Field waveform.
As preferably, inwall and the inwall of magnet steel body of described projection are on the identical face of cylinder, and protruding outer wall is on the identical face of cylinder with the outer wall of magnet steel body.Protruding equal respectively with the inside and outside wall of magnet steel body, be conducive to the assembling of magnet steel.
As preferably, described projection and the integral setting of magnet steel body.Projection is arranged on magnet steel body sidewall and setting integral with magnet steel body, is conducive to forming stronger curved Distribution of Magnetic Field waveform.
Therefore, the utility model has following characteristics compared to existing technology: by arranging the projection that multiple surface is circular arc on the sidewall of magnet steel body, and each projection is uniformly distributed along the circumferencial direction of magnet steel body, the Distribution of Magnetic Field waveform produced is arc, the sinusoidal waveform that can produce with stator armature electric current forms good coupling, armature electromagnetic field and magnet steel magnetic field is made to obtain utilizing more fully, loss is lower, thus the whole efficiency of motor is improved, moment of torsion is larger, motor rotation is more steady, reaches energy-conservation effect.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is front views of the present utility model;
Accompanying drawing 3 is upward views of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: see Fig. 1, Fig. 3, a kind of energy-efficient circular magnetic steel, comprise the magnet steel body 1 of annular, the upper side wall of magnet steel body 1 is provided with the projection 2 that two or more surfaces is circular arc, and protruding 2 are uniformly distributed along the circumferencial direction of magnet steel body 1.By arranging the projection that multiple surface is circular arc on the sidewall of magnet steel body, and each projection is uniformly distributed along the circumferencial direction of magnet steel body, Distribution of Magnetic Field waveform of the present utility model is made to be arc, the sinusoidal waveform that therefore can produce with stator armature electric current forms good coupling, and make armature electromagnetic field and magnet steel magnetic field obtain utilizing more fully, loss is lower, thus the whole efficiency of motor is improved, moment of torsion is larger, and motor rotation is more steady, reaches energy-conservation effect.
See Fig. 2, protruding 2 is a watt shape.Projection is set to Distribution of Magnetic Field waveform that watt shape produces and the sinusoidal waveform matching degree that stator armature electric current produces is the highest, and make armature electromagnetic field and permanent magnet field obtain utilizing the most fully, loss is minimum, thus makes the whole efficiency of motor mention the highest.Protruding 2 sidewalls corresponding with magnet steel body 1 are formed and cover completely.Be conducive to magnet steel and produce stronger curved Distribution of Magnetic Field waveform.The inwall of protruding 2 is on the identical face of cylinder with the inwall of magnet steel body 1, and the outer wall of protruding 2 is on the identical face of cylinder with the outer wall of magnet steel body 1.Protruding equal respectively with the inside and outside wall of magnet steel body, be conducive to the assembling of magnet steel.
See Fig. 1, Fig. 2, projection 2 and the integral setting of magnet steel body 1.Projection is arranged on magnet steel body sidewall and setting integral with magnet steel body, is conducive to forming stronger curved Distribution of Magnetic Field waveform.
It is apparent to one skilled in the art that the utility model can change into various ways, such change do not think depart from scope of the present utility model.All like this to the apparent amendment of described those skilled in the art by be included in this claim scope within.
Claims (5)
1. an energy-efficient circular magnetic steel, comprise the magnet steel body (1) of annular, it is characterized in that: a wherein sidewall of described magnet steel body (1) top and bottom is provided with the projection (2) that two or more surfaces is circular arc, and protruding (2) are uniformly distributed along the circumferencial direction of magnet steel body (1).
2. energy-efficient circular magnetic steel according to claim 1, is characterized in that: described projection (2) is watt shape.
3. energy-efficient circular magnetic steel according to claim 1 and 2, is characterized in that: described projection (2) sidewall corresponding with magnet steel body (1) is formed and cover completely.
4. energy-efficient circular magnetic steel according to claim 3, it is characterized in that: the inwall of described projection (2) is on the identical face of cylinder with the inwall of magnet steel body (1), the outer wall of protruding (2) is on the identical face of cylinder with the outer wall of magnet steel body (1).
5. energy-efficient circular magnetic steel according to claim 4, is characterized in that: described projection (2) and magnet steel body (1) integral setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520076663.1U CN204391921U (en) | 2015-02-03 | 2015-02-03 | A kind of energy-efficient circular magnetic steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520076663.1U CN204391921U (en) | 2015-02-03 | 2015-02-03 | A kind of energy-efficient circular magnetic steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204391921U true CN204391921U (en) | 2015-06-10 |
Family
ID=53364602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520076663.1U Expired - Fee Related CN204391921U (en) | 2015-02-03 | 2015-02-03 | A kind of energy-efficient circular magnetic steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204391921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412289A (en) * | 2017-05-09 | 2019-03-01 | 铜陵硬核电机科技有限公司 | A kind of permanent magnet motor magnetic pole arrangement architecture can produce sinusoidal magnetic flux |
-
2015
- 2015-02-03 CN CN201520076663.1U patent/CN204391921U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412289A (en) * | 2017-05-09 | 2019-03-01 | 铜陵硬核电机科技有限公司 | A kind of permanent magnet motor magnetic pole arrangement architecture can produce sinusoidal magnetic flux |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20220203 |