CN208001195U - A kind of rotor structure of sine-wave permanent magnet synchronous motor - Google Patents
A kind of rotor structure of sine-wave permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN208001195U CN208001195U CN201820162604.XU CN201820162604U CN208001195U CN 208001195 U CN208001195 U CN 208001195U CN 201820162604 U CN201820162604 U CN 201820162604U CN 208001195 U CN208001195 U CN 208001195U
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- rotor
- magnetic shoe
- stator
- core
- mounting groove
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model proposes a kind of rotor structure of sine-wave permanent magnet synchronous motor, including stator and rotor, rotor coaxial it is arranged in the inside of stator, stator is made of stator core;Rotor includes a rotor core and multiple magnetic shoe mounting grooves, and rotor core is circumferentially evenly distributed with magnetic shoe mounting groove, and magnetic shoe mounting groove is axially disposed, and each magnetic shoe mounting groove is mounted in each magnetic shoe mounting groove;Wherein, the vertical height of rotor core is less than stator core, and the vertical height of magnetic shoe is equal with stator core.Rotor height is less than stator height in the utility model, and interference is generated when avoiding magnetic pole commutating, influences motor normal operation.Hollow space in order to avoid being higher by rotor because of magnetic shoe influences magnetic shoe intensity, then selects the insulating materials such as bakelite plate to be filled in the utility model, met the requirements with this.
Description
Technical field
The utility model is related to magneto field more particularly to a kind of rotor structures of sine-wave permanent magnet synchronous motor.
Background technology
The Permanent Magnet and Electric being used widely at present in every field such as daily life, industrial and agricultural production, aerospace, national defence
Machine class mainly has:Magneto alternator, permanent magnet DC motor, asynchronous starting permanent magnet synchronous motor, speed governing permanent-magnet synchronous
Motor and other permanent magnetism specific type of electric machines with specific use.Speed governing permasyn morot, due to can be relatively
Continuous quickly startup, positioning, speed governing operation and quick tracking characteristics under control mode easy to implement, and by appropriate
Design can reduce by stator current and rotor permanent magnet interaction generate harmonic torque and by stator core and rotor
Permanent magnet interaction generate cogging torque, can make in this way motor when low speed is run there is still lower speed ripple with
And higher positioning accuracy, thus be widely used in industry control servo field.
Speed governing permasyn morot can be divided into two classes:Rectangular wave permasyn morot (also known as brushless direct current motor,
Burshless DC Motor, abbreviation BDCM), sine wave permanent magnet synchronous motor (Permanent Magnet
Synchronous Motor, abbreviation PMSM).Sine-wave permanent magnet synchronous motor is existing to mostly use bare headed rotor, turns according to straight slot
It is sub then sine-wave permanent magnet synchronous motor can be caused normal because of operation shake is more apparent, dynamometer machine data are poor etc. reasons
Operation.The utility model overcomes the technology prejudice of this field, it is proposed that a kind of sine wave permanent magnet with straight slot rotor synchronizes
Motor rotor construction.
Utility model content
To overcome the problems of the prior art, the utility model proposes a kind of sine-wave permanent magnet synchronous motor rotor knot
Structure, including stator and rotor are arranged to the rotor coaxial in the inside of the stator, and the stator is made of stator core;
The rotor includes a rotor core and multiple magnetic shoe mounting grooves, and the rotor core is circumferentially evenly distributed with magnetic shoe installation
Slot, the magnetic shoe mounting groove is axially disposed, and each magnetic shoe mounting groove is mounted in each magnetic shoe mounting groove;Wherein,
The vertical height of the rotor core is less than the stator core, and the vertical height of the magnetic shoe is equal with the stator core.
Preferably, the height between the rotor core and the stator core differs 6 millimeters.
Preferably, the above and or below of the rotor core is equipped with filled layer, the filled layer and the rotor core
The sum of vertical height it is equal with the stator core.
Preferably, the filled layer is the insulation system coordinated with the magnetic shoe.
Compared with prior art, the beneficial effects of the utility model:Rotor height is less than stator height in the utility model,
Interference is generated when avoiding magnetic pole commutating, influences motor normal operation.In order to avoid being higher by the hollow space shadow of rotor because of magnetic shoe
Magnetic shoe intensity is rung, then selects the insulating materials such as bakelite plate to be filled in the utility model, is met the requirements with this.
Description of the drawings
The rotor structure of sine-wave permanent magnet synchronous motor in an embodiment is shown in Fig. 1.
The rotor structure of sine-wave permanent magnet synchronous motor in another embodiment is shown in Fig. 2.
The rotor structure of sine-wave permanent magnet synchronous motor in another embodiment is shown in Fig. 3.
Specific implementation mode
Below in conjunction with schematic diagram to the utility model proposes sine-wave permanent magnet synchronous motor rotor structure carry out more
Detailed description, which show the preferred embodiments of the utility model, it should be appreciated that those skilled in the art can change
The utility model of this description, and still realize the advantageous effects of the utility model.Therefore, following description should be understood as pair
In the widely known of those skilled in the art, and it is not intended as limitations of the present invention.
The rotor structure of the sine-wave permanent magnet synchronous motor in the utility model embodiment is shown in Fig. 1, specific to wrap
Stator and rotor are included, is arranged to the rotor coaxial in the inside of the stator, the stator is made of stator core 1;It is described
Rotor includes 3 mounting groove of a rotor core 2 and multiple magnetic shoes, and the rotor core 2 is circumferentially evenly distributed with the installation of magnetic shoe 3
Slot, 3 mounting groove of the magnetic shoe is axially disposed, and 3 mounting groove of each magnetic shoe is mounted in each 3 mounting groove of the magnetic shoe;Its
In, the vertical height of the rotor core 2 is less than the stator core 1, the vertical height of the magnetic shoe 3 and the stator core
1 is equal.More specifically, the height between the rotor core 2 and the stator core 1 differs 6 millimeters.
Preferably, it is equipped with filled layer 4 in the top of the rotor core 2, the filled layer 4 and the rotor core 2
The sum of vertical height is equal with the stator core 1.The filled layer 4 is made of insulating materials such as bakelite plates, is had in filled layer 4
There is the mounting groove coordinated with magnetic shoe 3.
In addition to above structure, it is equipped in the lower section of rotor core 2 or over and under filled layer 4, referring specifically to Fig. 2
And Fig. 3, wherein the sum of the filled layer 4 and the vertical height of the rotor core 2 are equal with the stator core 1.
Rotor height is less than stator height in the utility model, generates interference when avoiding magnetic pole commutating, is influencing motor just
Often operating.Hollow space in order to avoid being higher by rotor because of magnetic shoe influences magnetic shoe intensity, then selects bakelite plate in the utility model
Equal insulating materials are filled, and are met the requirements with this.
The preferred embodiment that above are only the utility model, does not play the role of any restrictions to the utility model.
Any person of ordinary skill in the field, in the range of not departing from the technical solution of the utility model, to the utility model
The technical solution and technology contents of exposure make the variations such as any type of equivalent replacement or modification, belong to without departing from the utility model
Technical solution content, still fall within the scope of protection of the utility model.
Claims (4)
1. a kind of rotor structure of sine-wave permanent magnet synchronous motor, which is characterized in that including stator and rotor, the rotor coaxial
Ground is arranged in the inside of the stator, and the stator is made of stator core;The rotor includes a rotor core and multiple magnetic
Watt mounting groove, the rotor core are circumferentially evenly distributed with magnetic shoe mounting groove, and the magnetic shoe mounting groove is axially disposed, each
The magnetic shoe mounting groove is mounted in each magnetic shoe mounting groove;Wherein, the vertical height of the rotor core is less than described fixed
Sub- iron core, the vertical height of the magnetic shoe are equal with the stator core.
2. the rotor structure of sine-wave permanent magnet synchronous motor according to claim 1, which is characterized in that the rotor core
Height between the stator core differs 6 millimeters.
3. the rotor structure of sine-wave permanent magnet synchronous motor according to claim 1 or 2, which is characterized in that the rotor
The above and or below of iron core is equipped with filled layer, the sum of vertical height of the filled layer and the rotor core with it is described fixed
Sub- iron core is equal.
4. the rotor structure of sine-wave permanent magnet synchronous motor according to claim 3, which is characterized in that the filled layer is
With the insulation system of magnetic shoe cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820162604.XU CN208001195U (en) | 2018-01-31 | 2018-01-31 | A kind of rotor structure of sine-wave permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820162604.XU CN208001195U (en) | 2018-01-31 | 2018-01-31 | A kind of rotor structure of sine-wave permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208001195U true CN208001195U (en) | 2018-10-23 |
Family
ID=63837781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820162604.XU Expired - Fee Related CN208001195U (en) | 2018-01-31 | 2018-01-31 | A kind of rotor structure of sine-wave permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208001195U (en) |
-
2018
- 2018-01-31 CN CN201820162604.XU patent/CN208001195U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181023 Termination date: 20220131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |