CN203632510U - Motor - Google Patents
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- Publication number
- CN203632510U CN203632510U CN201320678795.2U CN201320678795U CN203632510U CN 203632510 U CN203632510 U CN 203632510U CN 201320678795 U CN201320678795 U CN 201320678795U CN 203632510 U CN203632510 U CN 203632510U
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- motor
- stator
- rotor
- reduced
- fluting
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- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to a motor, particularly relates to a motor capable of reducing cogging effect and reducing noise, and belongs to the technical field of motors. The motor comprises a rotor and a stator. The stator is provided with an open groove used for inlaying a coil. The open groove is arranged in an inclined way, and an inclined angle of 20 degrees is formed between the open groove and the axis of the stator. Amplitude of all harmonic waves of electromagnetic torques of the motor is reduced. The external circular side of the stator is provided with a fixing groove. The rotor is provided with multiple magnets which are parallel with the axis of the rotor. According to the motor, a tooth groove torque is reduced, vibration and noise of the motor are reduced, the additional resistance moment and moment pulsation are reduced, potential waveform is improved, the positioning moment particularly possessed by a permanent magnetic motor is reduced and operation precision of the motor is enhanced. Besides, compared with adoption of an inclined pole mode, the inclined open groove of the stator is simple in processing and low in cost.
Description
Technical field
The utility model belongs to technical field of motors, relates to a kind of motor, refers in particular to one and reduces slot effect, the motor of noise reduction.
Background technology
Motor has rotor and the stator around rotor arrangements, and stator has coil.In the time of this coil of electric current process, thereby produce rotating magnetic field, the electromagnetic action moving between this rotating magnetic field and rotor impels rotor.In the middle of motor application, must there is tooth and groove in order to lay stator winding in armature core, due to the existence of teeth groove, cause the inhomogeneous of air gap, and the magnetic flux in a tooth pitch concentrates on tooth portion relatively, and making air-gap permeance is not constant.In the time of rotor, the energy storage of air-gap field just changes, and produces cogging torque, i.e. slot effect, and this torque is constant, it is relevant with rotor-position, thereby along with rotor-position changes, just causes torque pulsation.It is relevant with shape and the Distribution of Magnetic Field etc. of the size of the structure of the physical dimension of rotor, stator teeth groove, air gap, magnetic pole.Slot effect can cause motor oscillating, moves not steadily, and noise is larger, and additional drag square is also bigger than normal, and precision reduces, and has had a strong impact on the operating efficiency of motor.Some producer adopts the method for the oblique utmost point to reduce slot effect, is arranged to heeling condition by epitrochanterian magnet.But tiltedly utmost point processed complex, material cost are high.
Summary of the invention
The purpose of this utility model is to provide one and reduces slot effect, reduces noise and vibration, improves the motor of running precision.
The purpose of this utility model is achieved in that a kind of motor, comprise rotor and stator, on described stator, be provided with the fluting for damascene wiring, wherein, described fluting is obliquely installed, and is 20 ° of angles with the axis of stator, fluting all reduces the amplitude of motor electromagnetic torque each harmonic to some extent, the cylindrical side of described stator is provided with holddown groove, is provided with some magnets on described rotor, and described magnet is parallel with the axis of rotor.
According to a kind of motor of the above, wherein, the fluting on described stator is specially 18, and is evenly distributed on described stator.
According to a kind of motor of the above, wherein, on described rotor, be specifically provided with 8 magnets, each piece has a polarity, and space.
According to a kind of motor of the above, wherein, described magnet is neodymium iron boron.
According to a kind of motor of the above, wherein, described coil adopts individual layer multiturn number entirety rule mode to be embedded in fluting.
The utility model compared to existing technology outstanding and useful technique effect is: on stator, fluting tilts 20 °, effectively suppress cogging torque pulsation, the fluting tilting all reduces the amplitude of motor electromagnetic torque each harmonic to some extent, reduce cogging torque, thereby the vibration and the noise that reduce motor, reduce additional drag square and torque fluctuation, improves potential waveform, reduce the distinctive location torque of magneto, improve the running precision of motor; And relatively adopting oblique utmost point method, the processing of stator inclined slot is simple, with low cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model stator;
Fig. 2 is the structural representation of the utility model rotor;
In figure: 10-stator, 11-rotor, 12-fluting, 13-holddown groove, 14-magnet.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-2: a kind of motor, comprise rotor 11 and stator 10, on described stator 10, be provided with the fluting 12 for damascene wiring, described coil adopts individual layer multiturn number entirety rule mode to be embedded in fluting 12.Wherein, described fluting 12 is obliquely installed, and be 20 ° of angles with the axis of stator 10, the fluting 12 on described stator 10 is specially 18, and be evenly distributed on described stator 10, fluting 12 all reduces the amplitude of motor electromagnetic torque each harmonic to some extent, effectively suppress cogging torque pulsation, the cylindrical side of described stator 10 is provided with holddown groove 13, when stator 10 is installed in motor housing, engage with raised line corresponding in motor housing by holddown groove 13, prevent that stator 10 from rotating.On described rotor 11, be provided with some magnets 14, be specifically provided with 8 magnets 14 on described rotor 11, each piece has a polarity, and space.Described magnet 14 is parallel with the axis of rotor 11, and described magnet 14 is neodymium iron boron.In the time of rotor, can 20 ° arrange there is faint variation because fluting 12 tilts in the energy storage of air-gap field, thereby reduce cogging torque, reduce vibration and the noise of motor, reduce additional drag square and torque fluctuation, improve potential waveform, reduce the distinctive location torque of magneto, improve the running precision of motor.
Above-described embodiment is only preferred embodiment of the present utility model, not limits according to this protection range of the present utility model, therefore: all equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection range of the present utility model.
Claims (5)
1. a motor, comprise rotor and stator, on described stator, be provided with the fluting for damascene wiring, it is characterized in that: described fluting is obliquely installed, and be 20 ° of angles with the axis of stator, the cylindrical side of described stator is provided with holddown groove, is provided with some magnets on described rotor, and described magnet is parallel with the axis of rotor.
2. a kind of motor according to claim 1, is characterized in that: the fluting on described stator is specially 18, and is evenly distributed on described stator.
3. a kind of motor according to claim 1, is characterized in that: on described rotor, be specifically provided with 8 magnets, each piece has a polarity, and space.
4. a kind of motor according to claim 3, is characterized in that: described magnet is neodymium iron boron.
5. a kind of motor according to claim 1, is characterized in that: described coil adopts individual layer multiturn number entirety rule mode to be embedded in fluting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320678795.2U CN203632510U (en) | 2013-10-30 | 2013-10-30 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320678795.2U CN203632510U (en) | 2013-10-30 | 2013-10-30 | Motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203632510U true CN203632510U (en) | 2014-06-04 |
Family
ID=50818946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320678795.2U Expired - Fee Related CN203632510U (en) | 2013-10-30 | 2013-10-30 | Motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203632510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564423A (en) * | 2020-12-29 | 2021-03-26 | 洛阳速普机电科技有限公司 | Ultrahigh-speed high-power permanent magnet synchronous motor |
-
2013
- 2013-10-30 CN CN201320678795.2U patent/CN203632510U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564423A (en) * | 2020-12-29 | 2021-03-26 | 洛阳速普机电科技有限公司 | Ultrahigh-speed high-power permanent magnet synchronous motor |
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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 |
Granted publication date: 20140604 Termination date: 20151030 |
|
| EXPY | Termination of patent right or utility model |