CN209134168U - A kind of structure of novel hub motor - Google Patents
A kind of structure of novel hub motor Download PDFInfo
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- CN209134168U CN209134168U CN201821875685.4U CN201821875685U CN209134168U CN 209134168 U CN209134168 U CN 209134168U CN 201821875685 U CN201821875685 U CN 201821875685U CN 209134168 U CN209134168 U CN 209134168U
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- motor
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- magnetic pole
- hub motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The utility model provides a kind of structure of novel hub motor, belong to technical field of motors, motor uses outer-rotor structure, the pole shoe of the rotor surface is made of non-uniform three pieces of permanent magnets, its ratio be 1:2:1, and permanent magnet is in uneven thickness, its inner side and outer side circular arc is not at the same center of circle, the mechanical angle that two pieces of small permanent magnets therein carry out 6 ° respectively is deviated again, technical points are: every pole pole shoe of motor is divided into three sections of uneven thickness, cogging torque amplitude is significantly weakened, reduce harmonic component, torque ripple reduces, motor being capable of stable operation, since permanent magnet material price is higher, select the program can also be with effectively save cost；Magnetic shielding material is put between adjacent special-shaped magnetic pole can effectively reduce leakage field between special-shaped magnetic pole, improve electric efficiency；The pipeline for increasing water cooling around adjacent homotype magnetic pole and stator tooth socket, can effectively inhibit the temperature of motor excessively high.
Description
Technical field
The utility model relates to technical field of motors, the structure of specifically a kind of novel hub motor.
Background technique
Hub motor is a kind of controllable AC synchronous motor for rapidly developing and occurring recently as electric car, is determined
For son using tooth slot structure, rotor is durface mounted permanent magnet structure.The maximum feature of hub motor is exactly by power, transmission and system
Dynamic device is all integrated into wheel hub, therefore the mechanical part of electric vehicle is greatly simplified, and can realize the drive of Various Complex
The advantages that flowing mode, these advantages favor hub motor in electric car application.But the pole shoe in motor and fixed
The unbalance stress of sub- tooth socket two sides can cause harmonic component and cogging torque larger, and harmonic wave and cogging torque can bring torque
Fluctuation, causes vibration and the noise of motor, the problems such as electric car speed is unstable, inefficient and temperature is excessively high occurs, this
A little disadvantages limit the development of hub motor.
Utility model content
The utility model aim is to provide a kind of structure of novel hub motor, with solve existing cogging torque it is larger,
The inefficient and excessively high problem of motor temperature.
The technical solution adopted in the utility model is in order to achieve the above objectives: the utility model provides a kind of novel hub
Electric machine structure, which is characterized in that the motor uses external rotor permanent magnet synchronous machine, improves the rotor and stator structure of motor；
The pole shoe of the rotor surface is made of non-uniform three pieces of permanent magnets, its ratio be 1:2:1, and permanent magnetism body thickness not phase
Deng inner side and outer side is not on a center of circle, then two pieces of small permanent magnets therein are carried out to 6 ° of mechanical angle respectively
Offset, is put into magnetic shielding material between its adjacent special-shaped magnetic pole, is put into water pipe between adjacent homotype magnetic pole；Described
It slots around stator slot, is put into water pipe in its slot.
By using above-mentioned technical proposal, hub motor obtains good operation characteristic, and every pole pole shoe is divided into thickness
The Distribution of Magnetic Field of uneven three sections, stator tooth and stator slot is relatively uniform very much, and cogging torque amplitude is significantly weakened, and is subtracted
Small harmonic component, torque ripple reduce, and entire Stator forces are relatively uniform, motor can stable operation, while reducing and making an uproar
Sound, speed is also more many than steady before, since permanent magnet material price is higher, selects the program that can also effectively reduce permanent magnetism
The use of material, more efficient to the utilization of resources, price is more economical；Being put into magnetic shielding material between adjacent special-shaped magnetic pole can
To effectively reduce the leakage field generated between its special-shaped magnetic pole, keeps its effective magnetic field stronger, improve the efficiency of motor；Adjacent homotype
Increase the pipeline of water cooling around magnetic pole and stator tooth socket, specific heat capacity of the water when pipeline is flowed through due to water is smaller, can have
The temperature of the inhibition motor of effect is excessively high.
Detailed description of the invention
Fig. 1 is a kind of integrally-built structural schematic diagram of novel hub motor of the utility model.
Fig. 2 is a kind of magnetic pole partial enlarged view of novel hub motor of the utility model.
In Fig. 1: 1, permanent magnet, 2, water cooled pipeline, 3, stator slot, 4, magnetic shielding material.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with specific embodiment, the utility model is further described.
If Fig. 1 is a kind of overall structure diagram of novel hub motor of the utility model；Fig. 2 is the utility model one kind
The magnetic pole partial enlarged view of novel hub motor；It is characterized in that, the motor uses external rotor permanent magnet synchronous machine, electricity is improved
The rotor and stator structure of machine；The pole shoe of the rotor surface is made of non-uniform three pieces of permanent magnets, and its ratio be 1:2:
1, and permanent magnetism body thickness is unequal, inner side and outer side is not on a center of circle, then by two pieces of small permanent magnets therein
The mechanical angle offset for carrying out 6 ° respectively, is put into magnetic shielding material between its adjacent special-shaped magnetic pole, in adjacent homotype magnetic
Water pipe is put between pole；It slots around the stator slot, is put into water pipe in its slot.
By using above-mentioned technical proposal, hub motor obtains good operation characteristic, and every pole pole shoe is divided into thickness
The Distribution of Magnetic Field of uneven three sections, stator tooth and stator slot is relatively uniform very much, and cogging torque amplitude is significantly weakened, and is subtracted
Small harmonic component, torque ripple reduce, and entire Stator forces are relatively uniform, motor can stable operation, while reducing and making an uproar
Sound, speed is also more many than steady before, since permanent magnet material price is higher, selects the program that can also effectively reduce permanent magnetism
The use of material, more efficient to the utilization of resources, price is more economical；Being put into magnetic shielding material between adjacent special-shaped magnetic pole can
To effectively reduce the leakage field generated between its special-shaped magnetic pole, keeps its effective magnetic field stronger, improve the efficiency of motor；Adjacent homotype
Increase the pipeline of water cooling around magnetic pole and stator tooth socket, specific heat capacity of the water when pipeline is flowed through due to water is smaller, can have
The temperature of the inhibition motor of effect is excessively high.
The above is preferred embodiments of the present invention, and the protection scope of the utility model is not limited to above-mentioned
Illustrate, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, is regarded as this reality
With novel protection scope.
Claims (5)
1. a kind of structure of novel hub motor, it is characterised in that: power, transmission and brake apparatus are all integrated into wheel hub, are
Improve motor performance and cost problem and the permanent magnet that the pole shoe of every pole is set as three pieces of not uniform thickness is placed on rotor surface, to improve
The lower problem of the efficiency of motor is put into magnetic shielding material between adjacent special-shaped magnetic pole, and the temperature to improve motor is excessively high to ask
Topic increases auxiliary tank between the adjacent homotype magnetic pole of its permanent magnet and around each stator slot.
2. a kind of structure of novel hub motor according to claim 1, it is characterised in that: pole shoe is divided into size not phase
Same trisection, its ratio be 1:2:1.
3. a kind of structure of novel hub motor according to claim 1, it is characterised in that: described three pieces uniform thickness is not forever
Magnet, inner side and outer side are not on a center of circle.
4. a kind of structure of novel hub motor according to claim 1, it is characterised in that: adjacent same
Across 6 ° of mechanical angle between type magnetic pole.
5. a kind of structure of novel hub motor according to claim 1, it is characterised in that: between adjacent homotype magnetic pole
And water inlet pipe built in the auxiliary tank around each stator slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821875685.4U CN209134168U (en) | 2018-11-15 | 2018-11-15 | A kind of structure of novel hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821875685.4U CN209134168U (en) | 2018-11-15 | 2018-11-15 | A kind of structure of novel hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209134168U true CN209134168U (en) | 2019-07-19 |
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ID=67245190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821875685.4U Active CN209134168U (en) | 2018-11-15 | 2018-11-15 | A kind of structure of novel hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209134168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111446830A (en) * | 2020-04-30 | 2020-07-24 | 华中科技大学 | Double-stator tangential excitation magnetic field modulation motor |
-
2018
- 2018-11-15 CN CN201821875685.4U patent/CN209134168U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111446830A (en) * | 2020-04-30 | 2020-07-24 | 华中科技大学 | Double-stator tangential excitation magnetic field modulation motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210623 Address after: 150080 No. 52, Xuefu Road, Nangang District, Heilongjiang, Harbin Patentee after: Harbin Rotary Electric Technology Co.,Ltd. Address before: 150080 No. 52, Xuefu Road, Nangang District, Heilongjiang, Harbin Patentee before: HARBIN University OF SCIENCE AND TECHNOLOGY |
|
| TR01 | Transfer of patent right |