CN105978253A - Production method for driving motor rotor with embedded tangential and surface-mounted radial permanent magnet steel - Google Patents
Production method for driving motor rotor with embedded tangential and surface-mounted radial permanent magnet steel Download PDFInfo
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- CN105978253A CN105978253A CN201610306616.0A CN201610306616A CN105978253A CN 105978253 A CN105978253 A CN 105978253A CN 201610306616 A CN201610306616 A CN 201610306616A CN 105978253 A CN105978253 A CN 105978253A
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- magnet steel
- rotor
- rotor punching
- slot
- tangential
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a production method for a driving motor rotor with embedded tangential and surface-mounted radial permanent magnet steel, and belongs to the technical field of motors and electric appliances of electromobile. Tile permanent magnet steel is fixed in the external circle of a rotor core, and rectangular permanent magnet steel is embedded in rectangular radial grooves of the rotor core. A magnetic bypass structure of the rotor can effectively solve the problem that irreversible demagnetization is generated when the permanent magnet steel is subjected to the armature reaction effect of impact current, it is ensured the permanent magnet steel is not demagnetized, a magnetic field of the driving motor rotor is provided by a tangential magnetic field and a radial magnetic field together, the intensity of the magnetic field is high, output power is high, the efficiency is high, power density is high, the structure is compact, and work is reliable.
Description
Technical field
The present invention provides a kind of embedded tangential and Surface Mount radial permanent magnet steel driving rotor production method, belongs to motor in electric automobile technical field of electric appliances.
Background technology
nullThe production method of the permanent magnet drive motor rotor used on electric automobile at present uses the outer damascene structures of permanent magnet mostly，Such as prior art，Patent name: brushless DC motor rotor，The patent No.: ZL200920116549.1，Disclose following technical scheme，Including rotor core、Rotating shaft and permanent magnet，Rotor core is made up of punching superposition and is connected，Rotating shaft is fixing with rotor core to be connected，The outer surface of rotor core is evenly distributed with even number T-shaped voussoir，Slot is constituted between adjacent T-shaped voussoir，Permanent magnet correspondence is embedded in slot，The permanent magnet of this construction rotor is directly facing air gap，Under the armature-reaction effect of dash current，Irreversible demagnetization may be produced，Permanent magnet once forms irreversible demagnetization，Driving electric efficiency reduces、Power、Moment of torsion declines rapidly，Its serviceability needs further improvement.
Summary of the invention
It is an object of the invention to provide one and can overcome drawbacks described above, tile permanent-magnet steel is fixed on the cylindrical of rotor core, rectangle permanent-magnet steel is embedded in the rectangle radial slot of rotor core, this structure is rotor magnetic bypass structure, can effectively prevent permanent-magnet steel from producing irreversible demagnetization problem under the armature-reaction effect of dash current, ensureing that the embedded tangential of permanent-magnet steel not loss of excitation and Surface Mount radial permanent magnet steel drive rotor production method, its technology contents is:
nullEmbedded tangential and Surface Mount radial permanent magnet steel drives rotor production method，It is characterized in that: punching annular rotor punching，It is evenly equipped with even number on rotor punching and runs through the shapes and sizes identical rectangle radial slot of rotor punching thickness，The outside of rectangle radial slot is dome arc，The sagitta of dome arc is 1mm，The not connected component of 1.5mm is had between top and the cylindrical of rotor punching of dome arc，The inner edge of each rectangle radial slot is straight line，The tangential rectangular channel running through rotor punching thickness it is provided with in the inner of each rectangle radial slot，The inner of rectangle radial slot connects with the outer end of tangential rectangular channel，The length 0.6mm less than the width of rectangle radial slot of tangential rectangular channel，The width of tangential rectangular channel is 1mm，The inner of tangential rectangular channel is provided with the peariform slot running through rotor punching thickness，Tangential the inner of rectangular channel connects with the outer end of peariform slot，Peariform slot is made up of multi-section circular arc，The circular arc of each peariform slot outer end is all on same circumference，The inner of peariform slot does not connects with the inner circle of annular rotor punching，Adjacent peariform slot does not connects，The minimum dimension of connected component is not 1.5mm，Peariform slot as every magnetic air gap along the diametric width of rotor punching between 3mm～5mm，The circular hole running through rotor punching thickness it is provided with in the middle of the outer end of two adjacent rectangle radial slots，The center of circle of each circular hole is all on same circumference，Do not connect between outer end and the cylindrical of rotor punching of circular hole，Disconnected minimum dimension is 2mm，The diameter of circular hole is more than the diameter of screw，Rotor punching is laminated by burr mode in one direction，Rotor punching is fixed by the iron rivet through the circular hole on rotor punching and is formed rotor core；
By rectangle permanent-magnet steel by the N pole of adjacent two panels rectangle permanent-magnet steel and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged in rectangle radial slot, mode that the polarity that formed by the adjacent rectangle permanent-magnet steel of the polarity of lateral surface and two panels by tile permanent-magnet steel again is identical and being sequentially fixed on rotor core by pole shoe by screw, rotor core is fitted on axle, completes the embedded tangential and assembling of Surface Mount radial permanent magnet steel driving rotor.
The present invention is compared with prior art, tile permanent-magnet steel is fixed on the cylindrical of rotor core, rectangle permanent-magnet steel is embedded in the rectangle radial slot of rotor core, this structure is rotor magnetic bypass structure, can effectively prevent the problem that permanent-magnet steel produces irreversible demagnetization under the armature-reaction effect of dash current, ensure permanent-magnet steel not loss of excitation, simultaneously drive rotor magnetic field jointly to be provided by tangential magnetic field and radial magnetic field, magnetic field intensity is big, output is high, has the features such as high efficiency, high power density, compact conformation, reliable operation.
Accompanying drawing explanation
Fig. 1 is the production process flow chart of the present invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
nullEmbedded tangential and Surface Mount radial permanent magnet steel drives rotor production method，It is characterized in that: punching annular rotor punching，It is evenly equipped with even number on rotor punching and runs through the shapes and sizes identical rectangle radial slot of rotor punching thickness，The outside of rectangle radial slot is dome arc，The sagitta of dome arc is 1mm，The not connected component of 1.5mm is had between top and the cylindrical of rotor punching of dome arc，The inner edge of each rectangle radial slot is straight line，The tangential rectangular channel running through rotor punching thickness it is provided with in the inner of each rectangle radial slot，The inner of rectangle radial slot connects with the outer end of tangential rectangular channel，The length 0.6mm less than the width of rectangle radial slot of tangential rectangular channel，The width of tangential rectangular channel is 1mm，The inner of tangential rectangular channel is provided with the peariform slot running through rotor punching thickness，Tangential the inner of rectangular channel connects with the outer end of peariform slot，Peariform slot is made up of multi-section circular arc，The circular arc of each peariform slot outer end is all on same circumference，The inner of peariform slot does not connects with the inner circle of annular rotor punching，Adjacent peariform slot does not connects，The minimum dimension of connected component is not 1.5mm，Peariform slot as every magnetic air gap along the diametric width of rotor punching between 3mm～5mm，The circular hole running through rotor punching thickness it is provided with in the middle of the outer end of two adjacent rectangle radial slots，The center of circle of each circular hole is all on same circumference，Do not connect between outer end and the cylindrical of rotor punching of circular hole，Disconnected minimum dimension is 2mm，The diameter of circular hole is more than the diameter of screw，Rotor punching is laminated by burr mode in one direction，Rotor punching is fixed by the iron rivet through the circular hole on rotor punching and is formed rotor core；
By rectangle permanent-magnet steel by the N pole of adjacent two panels rectangle permanent-magnet steel and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged in rectangle radial slot, mode that the polarity that formed by the adjacent rectangle permanent-magnet steel of the polarity of lateral surface and two panels by tile permanent-magnet steel again is identical and being sequentially fixed on rotor core by pole shoe by screw, rotor core is fitted on axle, completes the embedded tangential and assembling of Surface Mount radial permanent magnet steel driving rotor.
Claims (1)
- null1. an embedded tangential and Surface Mount radial permanent magnet steel driving rotor production method，It is characterized in that: punching annular rotor punching，It is evenly equipped with even number on rotor punching and runs through the shapes and sizes identical rectangle radial slot of rotor punching thickness，The outside of rectangle radial slot is dome arc，The sagitta of dome arc is 1mm，The not connected component of 1.5mm is had between top and the cylindrical of rotor punching of dome arc，The inner edge of each rectangle radial slot is straight line，The tangential rectangular channel running through rotor punching thickness it is provided with in the inner of each rectangle radial slot，The inner of rectangle radial slot connects with the outer end of tangential rectangular channel，The length 0.6mm less than the width of rectangle radial slot of tangential rectangular channel，The width of tangential rectangular channel is 1mm，The inner of tangential rectangular channel is provided with the peariform slot running through rotor punching thickness，Tangential the inner of rectangular channel connects with the outer end of peariform slot，Peariform slot is made up of multi-section circular arc，The circular arc of each peariform slot outer end is all on same circumference，The inner of peariform slot does not connects with the inner circle of annular rotor punching，Adjacent peariform slot does not connects，The minimum dimension of connected component is not 1.5mm，Peariform slot as every magnetic air gap along the diametric width of rotor punching between 3mm～5mm，The circular hole running through rotor punching thickness it is provided with in the middle of the outer end of two adjacent rectangle radial slots，The center of circle of each circular hole is all on same circumference，Do not connect between outer end and the cylindrical of rotor punching of circular hole，Disconnected minimum dimension is 2mm，The diameter of circular hole is more than the diameter of screw，Rotor punching is laminated by burr mode in one direction，Rotor punching is fixed by the iron rivet through the circular hole on rotor punching and is formed rotor core；By rectangle permanent-magnet steel by the N pole of adjacent two panels rectangle permanent-magnet steel and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged in rectangle radial slot, mode that the polarity that formed by the adjacent rectangle permanent-magnet steel of the polarity of lateral surface and two panels by tile permanent-magnet steel again is identical and being sequentially fixed on rotor core by pole shoe by screw, rotor core is fitted on axle, completes the embedded tangential and assembling of Surface Mount radial permanent magnet steel driving rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306616.0A CN105978253A (en) | 2016-05-11 | 2016-05-11 | Production method for driving motor rotor with embedded tangential and surface-mounted radial permanent magnet steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306616.0A CN105978253A (en) | 2016-05-11 | 2016-05-11 | Production method for driving motor rotor with embedded tangential and surface-mounted radial permanent magnet steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105978253A true CN105978253A (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610306616.0A Pending CN105978253A (en) | 2016-05-11 | 2016-05-11 | Production method for driving motor rotor with embedded tangential and surface-mounted radial permanent magnet steel |
Country Status (1)
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| CN (1) | CN105978253A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202488240U (en) * | 2012-01-09 | 2012-10-10 | 美的威灵电机技术（上海）有限公司 | Tangential rotor of rotary motor |
| US20130134820A1 (en) * | 2011-11-29 | 2013-05-30 | Delta Electronics (Shanghai) Co., Ltd. | Rotor and rotary electric machine containing the same |
| CN103762766A (en) * | 2014-02-18 | 2014-04-30 | 山东理工大学 | Permanent-magnet hybrid magnetic circuit drive motor of electric vehicle |
| CN103780028A (en) * | 2014-02-18 | 2014-05-07 | 山东理工大学 | Method for producing permanent magnet rotor of hybrid magnetic circuit of driving motor of electric car |
-
2016
- 2016-05-11 CN CN201610306616.0A patent/CN105978253A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130134820A1 (en) * | 2011-11-29 | 2013-05-30 | Delta Electronics (Shanghai) Co., Ltd. | Rotor and rotary electric machine containing the same |
| CN202488240U (en) * | 2012-01-09 | 2012-10-10 | 美的威灵电机技术（上海）有限公司 | Tangential rotor of rotary motor |
| CN103762766A (en) * | 2014-02-18 | 2014-04-30 | 山东理工大学 | Permanent-magnet hybrid magnetic circuit drive motor of electric vehicle |
| CN103780028A (en) * | 2014-02-18 | 2014-05-07 | 山东理工大学 | Method for producing permanent magnet rotor of hybrid magnetic circuit of driving motor of electric car |
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Application publication date: 20160928 |