CN103780028A - Method for producing permanent magnet rotor of hybrid magnetic circuit of driving motor of electric car - Google Patents
Method for producing permanent magnet rotor of hybrid magnetic circuit of driving motor of electric car Download PDFInfo
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- CN103780028A CN103780028A CN201410053210.7A CN201410053210A CN103780028A CN 103780028 A CN103780028 A CN 103780028A CN 201410053210 A CN201410053210 A CN 201410053210A CN 103780028 A CN103780028 A CN 103780028A
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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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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a method for producing a permanent magnet rotor of a hybrid magnetic circuit of a driving motor of an electric car, and belongs to the technical field of electric appliances of the electric car. Tile permanent magnet steel is fixed on a rotor iron core by a screw through a pole shoe, the rectangular permanent magnet steel is embedded into the rotor iron core, the structure is a rotor magnetic bypass structure, the problem that the permanent magnet steel generates irreversible demagnetization under the action of the armature reaction of impulse currents can be effectively prevented, it is ensured that the permanent magnet steel cannot be demagnetized, meanwhile, the rotor magnetic field of the driving motor is jointly provided by a radial magnetic field and a tangential magnetic field, the strength of the magnetic fields is large, the output power is high, and the method has the advantages of being high in efficiency, high in power density, compact in structure, reliable in work and the like.
Description
Technical field
The invention provides a kind of driving motor for electric automobile mixed magnetic circuit p-m rotor production method, belong to electric motor of automobile technical field of electric appliances.
Background technology
The production method of the permanent magnet drive motor rotor adopting on electric automobile at present adopts the outer damascene structures of permanent magnet mostly, as prior art, patent name: brushless DC motor rotor, the patent No.: ZL200920116549.1, following technical scheme is disclosed, comprise rotor core, rotating shaft and permanent magnet, rotor core is formed and is connected by punching stack, rotating shaft is fixedly connected with rotor core, the outer surface of rotor core is evenly distributed with even number T shape voussoir, between adjacent T shape voussoir, form slot, permanent magnet correspondence is embedded in slot, the permanent magnet of this construction rotor is directly in the face of air gap, under the armature reaction effect of impulse current, may produce irreversible demagnetization, once permanent magnet forms irreversible demagnetization, electric efficiency reduces, power, moment of torsion declines rapidly, its serviceability needs further improvement.
Summary of the invention
The object of this invention is to provide one and can overcome above-mentioned defect, tile permanent-magnet steel is fixed on rotor core by screw by pole shoe, rectangle permanent-magnet steel is embedded in rotor core, this structure is rotor magnetic bypass structure, can effectively prevent that permanent-magnet steel from producing irreversible demagnetization problem under the armature reaction effect of impulse current, guarantee the not driving motor for electric automobile mixed magnetic circuit p-m rotor production method of loss of excitation of permanent-magnet steel, its technology contents is:
Driving motor for electric automobile mixed magnetic circuit p-m rotor production method, it is characterized in that: punching annular rotor punching, on rotor punching, be evenly equipped with the radially rectangular channel that even number runs through rotor punching thickness, radially between the outer end of rectangular channel and the cylindrical of rotor punching, there is the not connected component of 1.5mm, radially between the inner of rectangular channel, be provided with the tangential rectangular channel that runs through rotor punching thickness at adjacent two, tangential rectangular channel is as every magnetic air gap, width is not less than 3mm, multiple tangential rectangular channels are all tangent with same circumference, and be not communicated with rectangular channel radially, the minimum range of connected component is not 1.5mm, radially in the middle of the outer end of rectangular channel, be provided with the circular hole that runs through rotor punching thickness adjacent two, the center of multiple circular holes is all on same circumference, the outer end of circular hole is 2 mm apart from the distance between rotor punching cylindrical, the diameter of circular hole is greater than the diameter of fixing tile permanent-magnet steel screw, rotor punching is laminated by the suitable mode of burr one, rivet through the circular hole on rotor punching with iron rivet, form rotor core,
Tile permanent-magnet steel is that the extremely spaced mode of the N utmost point, S is fixed on by screw on the cylindrical of rotor core by pole shoe by convex surface, the center line of screw is crossing with the center line of iron rivet, the N utmost point of rectangle permanent-magnet steel is arranged in the radially rectangular channel of rotor core by the mode that is the N utmost point towards another adjacent sheet tile permanent-magnet steel concave surface successively by the S utmost point that towards tile permanent-magnet steel concave surface is the S utmost point, rectangle permanent-magnet steel, rotor core is fitted on axle, completes the assembling of driving motor for electric automobile mixed magnetic circuit p-m rotor.
The present invention compared with prior art, tile permanent-magnet steel is fixed on rotor core by screw by pole shoe, rectangle permanent-magnet steel is embedded in rotor core, this structure is rotor magnetic bypass structure, can effectively prevent that permanent-magnet steel from producing the problem of irreversible demagnetization under the armature reaction effect of impulse current, guarantee not loss of excitation of permanent-magnet steel, drive motors rotor field is provided jointly by radial magnetic field and tangential magnetic field simultaneously, magnetic field intensity is large, power output is high, has the features such as high efficiency, high power density, compact conformation, reliable operation.
Accompanying drawing explanation
Fig. 1 is production process flow chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Driving motor for electric automobile mixed magnetic circuit p-m rotor production method, it is characterized in that: punching annular rotor punching, on rotor punching, be evenly equipped with the radially rectangular channel that even number runs through rotor punching thickness, radially between the outer end of rectangular channel and the cylindrical of rotor punching, there is the not connected component of 1.5mm, radially between the inner of rectangular channel, be provided with the tangential rectangular channel that runs through rotor punching thickness at adjacent two, tangential rectangular channel is as every magnetic air gap, width is not less than 3mm, multiple tangential rectangular channels are all tangent with same circumference, and be not communicated with rectangular channel radially, the minimum range of connected component is not 1.5mm, radially in the middle of the outer end of rectangular channel, be provided with the circular hole that runs through rotor punching thickness adjacent two, the center of multiple circular holes is all on same circumference, the outer end of circular hole is 2 mm apart from the distance between rotor punching cylindrical, the diameter of circular hole is greater than the diameter of fixing tile permanent-magnet steel screw, rotor punching is laminated by the suitable mode of burr one, rivet through the circular hole on rotor punching with iron rivet, form rotor core,
Tile permanent-magnet steel is that the extremely spaced mode of the N utmost point, S is fixed on by screw on the cylindrical of rotor core by pole shoe by convex surface, the center line of screw is crossing with the center line of iron rivet, the N utmost point of rectangle permanent-magnet steel is arranged in the radially rectangular channel of rotor core by the mode that is the N utmost point towards another adjacent sheet tile permanent-magnet steel concave surface successively by the S utmost point that towards tile permanent-magnet steel concave surface is the S utmost point, rectangle permanent-magnet steel, rotor core is fitted on axle, completes the assembling of driving motor for electric automobile mixed magnetic circuit p-m rotor.
Claims (1)
1. a driving motor for electric automobile mixed magnetic circuit p-m rotor production method, it is characterized in that: punching annular rotor punching, on rotor punching, be evenly equipped with the radially rectangular channel that even number runs through rotor punching thickness, radially between the outer end of rectangular channel and the cylindrical of rotor punching, there is the not connected component of 1.5mm, radially between the inner of rectangular channel, be provided with the tangential rectangular channel that runs through rotor punching thickness at adjacent two, tangential rectangular channel is as every magnetic air gap, width is not less than 3mm, multiple tangential rectangular channels are all tangent with same circumference, and be not communicated with rectangular channel radially, the minimum range of connected component is not 1.5mm, radially in the middle of the outer end of rectangular channel, be provided with the circular hole that runs through rotor punching thickness adjacent two, the center of multiple circular holes is all on same circumference, the outer end of circular hole is 2 mm apart from the distance between rotor punching cylindrical, the diameter of circular hole is greater than the diameter of fixing tile permanent-magnet steel screw, rotor punching is laminated by the suitable mode of burr one, rivet through the circular hole on rotor punching with iron rivet, form rotor core,
Tile permanent-magnet steel is that the extremely spaced mode of the N utmost point, S is fixed on by screw on the cylindrical of rotor core by pole shoe by convex surface, the center line of screw is crossing with the center line of iron rivet, the N utmost point of rectangle permanent-magnet steel is arranged in the radially rectangular channel of rotor core by the mode that is the N utmost point towards another adjacent sheet tile permanent-magnet steel concave surface successively by the S utmost point that towards tile permanent-magnet steel concave surface is the S utmost point, rectangle permanent-magnet steel, rotor core is fitted on axle, completes the assembling of driving motor for electric automobile mixed magnetic circuit p-m rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053210.7A CN103780028A (en) | 2014-02-18 | 2014-02-18 | Method for producing permanent magnet rotor of hybrid magnetic circuit of driving motor of electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410053210.7A CN103780028A (en) | 2014-02-18 | 2014-02-18 | Method for producing permanent magnet rotor of hybrid magnetic circuit of driving motor of electric car |
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| CN103780028A true CN103780028A (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410053210.7A Pending CN103780028A (en) | 2014-02-18 | 2014-02-18 | Method for producing permanent magnet rotor of hybrid magnetic circuit of driving motor of electric car |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790522A (en) * | 2016-05-11 | 2016-07-20 | 山东理工大学 | Production method for electromagnetic and permanent magnet parallel magnetic field mixed excitation generator rotor |
| CN105811680A (en) * | 2016-05-11 | 2016-07-27 | 山东理工大学 | Production method for rotor of hub driving motor equipped with surface-mounted radial and built-in tangential permanent magnetic steels |
| CN105896849A (en) * | 2016-05-12 | 2016-08-24 | 张学义 | Parallel magnetic circuit hybrid excitation driving motor rotor generating method |
| CN105978253A (en) * | 2016-05-11 | 2016-09-28 | 山东理工大学 | Production method for driving motor rotor with embedded tangential and surface-mounted radial permanent magnet steel |
| CN109623547A (en) * | 2018-12-11 | 2019-04-16 | 哈尔滨电气动力装备有限公司 | Rotor core outer circle removes the process of burr on the inside of groove |
| CN112436689A (en) * | 2020-12-18 | 2021-03-02 | 山东理工大学 | Production method of nested drive motor salient pole rotor with backstop function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09200982A (en) * | 1996-01-12 | 1997-07-31 | Daikin Ind Ltd | Rotor for brushless dc motor and magnet positioning-fixing method thereof |
| 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 |
| US6087751A (en) * | 1997-07-01 | 2000-07-11 | Kabushiki Kaisha Toshiba | Reluctance type rotating machine with permanent magnets |
| CN102097876A (en) * | 2011-01-24 | 2011-06-15 | 河南理工大学 | Permanent magnet motor rotor |
| CN102647037A (en) * | 2012-04-26 | 2012-08-22 | 张学义 | Tangential and biradial permanent magnet hybrid magnetic circuit generator |
-
2014
- 2014-02-18 CN CN201410053210.7A patent/CN103780028A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09200982A (en) * | 1996-01-12 | 1997-07-31 | Daikin Ind Ltd | Rotor for brushless dc motor and magnet positioning-fixing method thereof |
| US6087751A (en) * | 1997-07-01 | 2000-07-11 | Kabushiki Kaisha Toshiba | Reluctance type rotating machine with permanent magnets |
| 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 |
| CN102097876A (en) * | 2011-01-24 | 2011-06-15 | 河南理工大学 | Permanent magnet motor rotor |
| CN102647037A (en) * | 2012-04-26 | 2012-08-22 | 张学义 | Tangential and biradial permanent magnet hybrid magnetic circuit generator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790522A (en) * | 2016-05-11 | 2016-07-20 | 山东理工大学 | Production method for electromagnetic and permanent magnet parallel magnetic field mixed excitation generator rotor |
| CN105811680A (en) * | 2016-05-11 | 2016-07-27 | 山东理工大学 | Production method for rotor of hub driving motor equipped with surface-mounted radial and built-in tangential permanent magnetic steels |
| CN105978253A (en) * | 2016-05-11 | 2016-09-28 | 山东理工大学 | Production method for driving motor rotor with embedded tangential and surface-mounted radial permanent magnet steel |
| CN105896849A (en) * | 2016-05-12 | 2016-08-24 | 张学义 | Parallel magnetic circuit hybrid excitation driving motor rotor generating method |
| CN109623547A (en) * | 2018-12-11 | 2019-04-16 | 哈尔滨电气动力装备有限公司 | Rotor core outer circle removes the process of burr on the inside of groove |
| CN112436689A (en) * | 2020-12-18 | 2021-03-02 | 山东理工大学 | Production method of nested drive motor salient pole rotor with backstop function |
| CN112436689B (en) * | 2020-12-18 | 2022-09-13 | 山东理工大学 | Production method of nested drive motor salient pole rotor with backstop function |
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Application publication date: 20140507 |