CN105827073A - Production method of electric car hub driving motor stealth magnetic pole rotor - Google Patents
Production method of electric car hub driving motor stealth magnetic pole rotor Download PDFInfo
- Publication number
- CN105827073A CN105827073A CN201610311854.0A CN201610311854A CN105827073A CN 105827073 A CN105827073 A CN 105827073A CN 201610311854 A CN201610311854 A CN 201610311854A CN 105827073 A CN105827073 A CN 105827073A
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- Prior art keywords
- rotor
- arc
- magnet steel
- rectangle
- rotor punching
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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
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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
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
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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
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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 of an electric car hub driving motor stealth magnetic pole rotor, and belongs to the technical field of an electric car motor electric appliance. The production method is characterized in that permanent magnet steel are respectively embedded in a rectangular radial slot and an arc-shaped slot of a rotor core; the structure is a rotor magnetic bypass structure, and can effectively prevent the permanent magnet steel from generating irreversible demagnetization under the armature reaction of the impulse current so as to guarantee no magnetic loss occurs in the permanent magnet steel; and at the same time, a hub driving motor rotor magnetic field is provided by the permanent magnet steel. The production method of an electric car hub driving motor stealth magnetic pole rotor has the advantages of having no demand for electrical excitation winding, consuming less electric energy, having non carbon brushes and mechanical commutators, being low in failure rate, being compact in structure, and being reliable in working.
Description
Technical field
The present invention provides a kind of electric automobile hub to drive motor hidden magnetic pole method for production of rotor, 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, permanent-magnet steel is embedded in rectangle radial slot and the arc-shaped slot of rotor core respectively, 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 electric automobile hub of permanent-magnet steel not loss of excitation drives motor hidden magnetic pole method for production of rotor, its technology contents is:
nullElectric automobile hub drives motor hidden magnetic pole method for production of rotor，It is characterized in that: punching annular rotor punching，It is evenly equipped with even number on rotor punching and runs through rotor punching thickness rectangle radial slot，The inner edge of rectangle radial slot is dome arc，The sagitta of dome arc is 1mm，The not connected component of 1.5mm is had between bottom and the inner circle of rotor punching of rectangle radial slot，It is provided with the Inner arc the running through rotor punching thickness arc-shaped slot towards rotor punching inner circle every two rectangle radial slots，Arc-shaped slot does not connects with rectangle radial slot，The not connected component of 1.5mm is had between two ends and the inner circle of rotor core of arc-shaped slot，The outside of each rectangle radial slot is straight line，The tangential rectangular channel running through rotor punching thickness it is provided with in the outer end of each rectangle radial slot，Tangential the inner of rectangular channel connects with the outer end of rectangle radial slot，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 fan cannelure running through rotor punching thickness it is provided with in the outer end of each tangential rectangular channel，The inner of fan cannelure connects with the outer end of tangential rectangular channel，The not connected component of 3mm is had between outer end and the cylindrical of rotor punching of fan cannelure，Adjacent fan cannelure does not connects，Fan cannelure as every magnetic air gap along the diametric width of rotor punching between 3mm～5mm，W type groove is had on rotor punching cylindrical，Rotor punching is laminated by burr mode in one direction，The mode using argon arc welding welds the mid portion laminating rear rotor punching W type groove，Form rotor core；
In two rectangle radial slots of the arc-shaped slot both sides that identical two panels rectangle permanent-magnet steel is respectively placed on rotor core and the relative side polarity of two panels rectangle permanent-magnet steel is N pole, then tile permanent-magnet steel is placed in arc-shaped slot by the mode that inner arc surface polarity is N pole, adjacent S pole and S extremely relative to the S pole of two panels rectangle permanent-magnet steel and tile permanent-magnet steel S the most all by rotor core guide to S pole and S extremely relative to two panels rectangle permanent-magnet steel mid portion rotor core on, form the S pole of hidden magnetic pole, rotor core is fixed in the inner circle of hub-type casing, complete electric automobile hub and drive the assembling of motor hidden magnetic pole rotor.
The present invention is compared with prior art, permanent-magnet steel is embedded in rectangle radial slot and the arc-shaped slot of rotor core respectively, 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, it is ensured that permanent-magnet steel not loss of excitation, wheel hub drives rotor magnetic field to be provided by permanent-magnet steel simultaneously, few without electrical excitation winding, power consumption, non-carbonate and mechanical commutator, failure rate is low, 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:
nullElectric automobile hub drives motor hidden magnetic pole method for production of rotor，It is characterized in that: punching annular rotor punching，It is evenly equipped with even number on rotor punching and runs through rotor punching thickness rectangle radial slot，The inner edge of rectangle radial slot is dome arc，The sagitta of dome arc is 1mm，The not connected component of 1.5mm is had between bottom and the inner circle of rotor punching of rectangle radial slot，It is provided with the Inner arc the running through rotor punching thickness arc-shaped slot towards rotor punching inner circle every two rectangle radial slots，Arc-shaped slot does not connects with rectangle radial slot，The not connected component of 1.5mm is had between two ends and the inner circle of rotor core of arc-shaped slot，The outside of each rectangle radial slot is straight line，The tangential rectangular channel running through rotor punching thickness it is provided with in the outer end of each rectangle radial slot，Tangential the inner of rectangular channel connects with the outer end of rectangle radial slot，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 fan cannelure running through rotor punching thickness it is provided with in the outer end of each tangential rectangular channel，The inner of fan cannelure connects with the outer end of tangential rectangular channel，The not connected component of 3mm is had between outer end and the cylindrical of rotor punching of fan cannelure，Adjacent fan cannelure does not connects，Fan cannelure as every magnetic air gap along the diametric width of rotor punching between 3mm～5mm，W type groove is had on rotor punching cylindrical，Rotor punching is laminated by burr mode in one direction，The mode using argon arc welding welds the mid portion laminating rear rotor punching W type groove，Form rotor core；
In two rectangle radial slots of the arc-shaped slot both sides that identical two panels rectangle permanent-magnet steel is respectively placed on rotor core and the relative side polarity of two panels rectangle permanent-magnet steel is N pole, then tile permanent-magnet steel is placed in arc-shaped slot by the mode that inner arc surface polarity is N pole, adjacent S pole and S extremely relative to the S pole of two panels rectangle permanent-magnet steel and tile permanent-magnet steel S the most all by rotor core guide to S pole and S extremely relative to two panels rectangle permanent-magnet steel mid portion rotor core on, form the S pole of hidden magnetic pole, rotor core is fixed in the inner circle of hub-type casing, complete electric automobile hub and drive the assembling of motor hidden magnetic pole rotor.
Claims (1)
- null1. an electric automobile hub drives motor hidden magnetic pole method for production of rotor，It is characterized in that: punching annular rotor punching，It is evenly equipped with even number on rotor punching and runs through rotor punching thickness rectangle radial slot，The inner edge of rectangle radial slot is dome arc，The sagitta of dome arc is 1mm，The not connected component of 1.5mm is had between bottom and the inner circle of rotor punching of rectangle radial slot，It is provided with the Inner arc the running through rotor punching thickness arc-shaped slot towards rotor punching inner circle every two rectangle radial slots，Arc-shaped slot does not connects with rectangle radial slot，The not connected component of 1.5mm is had between two ends and the inner circle of rotor core of arc-shaped slot，The outside of each rectangle radial slot is straight line，The tangential rectangular channel running through rotor punching thickness it is provided with in the outer end of each rectangle radial slot，Tangential the inner of rectangular channel connects with the outer end of rectangle radial slot，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 fan cannelure running through rotor punching thickness it is provided with in the outer end of each tangential rectangular channel，The inner of fan cannelure connects with the outer end of tangential rectangular channel，The not connected component of 3mm is had between outer end and the cylindrical of rotor punching of fan cannelure，Adjacent fan cannelure does not connects，Fan cannelure as every magnetic air gap along the diametric width of rotor punching between 3mm～5mm，W type groove is had on rotor punching cylindrical，Rotor punching is laminated by burr mode in one direction，The mode using argon arc welding welds the mid portion laminating rear rotor punching W type groove，Form rotor core；In two rectangle radial slots of the arc-shaped slot both sides that identical two panels rectangle permanent-magnet steel is respectively placed on rotor core and the relative side polarity of two panels rectangle permanent-magnet steel is N pole, then tile permanent-magnet steel is placed in arc-shaped slot by the mode that inner arc surface polarity is N pole, adjacent S pole and S extremely relative to the S pole of two panels rectangle permanent-magnet steel and tile permanent-magnet steel S the most all by rotor core guide to S pole and S extremely relative to two panels rectangle permanent-magnet steel mid portion rotor core on, form the S pole of hidden magnetic pole, rotor core is fixed in the inner circle of hub-type casing, complete electric automobile hub and drive the assembling of motor hidden magnetic pole rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610311854.0A CN105827073A (en) | 2016-05-12 | 2016-05-12 | Production method of electric car hub driving motor stealth magnetic pole rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610311854.0A CN105827073A (en) | 2016-05-12 | 2016-05-12 | Production method of electric car hub driving motor stealth magnetic pole rotor |
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| Publication Number | Publication Date |
|---|---|
| CN105827073A true CN105827073A (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610311854.0A Pending CN105827073A (en) | 2016-05-12 | 2016-05-12 | Production method of electric car hub driving motor stealth magnetic pole rotor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213207A (en) * | 1997-09-29 | 1999-04-07 | 富士通将军股份有限公司 | Permanent magnet rotor type electric motor |
| JP2012029514A (en) * | 2010-07-27 | 2012-02-09 | Nissan Motor Co Ltd | Rotary electric machine |
| CN103887938A (en) * | 2014-04-11 | 2014-06-25 | 张学义 | Production method of built-in tangential permanent magnet rotor of electric vehicle hub driving motor |
| CN203788060U (en) * | 2014-03-26 | 2014-08-20 | 无锡华东电机科技发展有限公司 | 16 pole permanent magnet motor integral rotor punching sheet |
-
2016
- 2016-05-12 CN CN201610311854.0A patent/CN105827073A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213207A (en) * | 1997-09-29 | 1999-04-07 | 富士通将军股份有限公司 | Permanent magnet rotor type electric motor |
| JP2012029514A (en) * | 2010-07-27 | 2012-02-09 | Nissan Motor Co Ltd | Rotary electric machine |
| CN203788060U (en) * | 2014-03-26 | 2014-08-20 | 无锡华东电机科技发展有限公司 | 16 pole permanent magnet motor integral rotor punching sheet |
| CN103887938A (en) * | 2014-04-11 | 2014-06-25 | 张学义 | Production method of built-in tangential permanent magnet rotor of electric vehicle hub driving motor |
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Application publication date: 20160803 |