CN105958772A - Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles - Google Patents

Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles Download PDF

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Publication number
CN105958772A
CN105958772A CN201610306579.3A CN201610306579A CN105958772A CN 105958772 A CN105958772 A CN 105958772A CN 201610306579 A CN201610306579 A CN 201610306579A CN 105958772 A CN105958772 A CN 105958772A
Authority
CN
China
Prior art keywords
magnet steel
rotor
permanent
permanent magnet
rotor core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610306579.3A
Other languages
Chinese (zh)
Inventor
杜钦君
张学义
徐进彬
王静
高艳红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong University of Technology
Original Assignee
Shandong University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong University of Technology filed Critical Shandong University of Technology
Priority to CN201610306579.3A priority Critical patent/CN105958772A/en
Publication of CN105958772A publication Critical patent/CN105958772A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/24Rotor cores with salient poles ; Variable reluctance rotors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotors
    • H02K1/272Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • H02K1/2773Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02Details
    • H02K21/04Windings on magnets for additional excitation ; Windings and magnets for additional excitation
    • H02K21/042Windings on magnets for additional excitation ; Windings and magnets for additional excitation with permanent magnets and field winding both rotating
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2201/00Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/03Machines characterised by aspects of the air-gap between rotor and stator
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/64Electric machine technologies in electromobility

Abstract

The invention provides a salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles, and belongs to the technical field of electric automobile motors and appliances. The drive motor is composed of a front end cover, a rear end cover, a case, a rotor, and a stator. Rectangular permanent magnet steel pieces are embedded into radial rectangular slots, and tile-shaped permanent magnet steel pieces are embedded into circular arc slots. The permanent magnet steel pieces can be effectively prevented from generating irreversible demagnetization under the armature reaction effect of impact current, and that the permanent magnet steel pieces do not lose magnetism is ensured. The magnetic field in the air gap of the drive motor is provided jointly by the permanent magnet steel pieces and an electric excitation winding. The magnetic field is strong, and the output power is high.

Description

Electric automobile salient pole electromagnetism drives motor with embedded permanent magnetism mixing excitation
Technical field
The present invention provides a kind of electric automobile salient pole electromagnetism to drive motor with embedded permanent magnetism mixing excitation, belongs to electric automobile Electrical equipment and electrical technical field.
Background technology
The rotor of the permanent magnet drive motor used on electric automobile at present uses the outer damascene structures of permanent magnet mostly, as existing There is technology, 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, and rotating shaft is fixed with rotor core Connecting, the outer surface of rotor core is evenly distributed with even number T-shaped voussoir, constitutes slot, permanent magnet pair between adjacent T-shaped voussoir Should be embedded in slot, the permanent magnet of this construction rotor is directly facing air gap, under the armature-reaction effect of dash current, and may Producing irreversible demagnetization, permanent magnet once forms irreversible demagnetization, drives electric efficiency to reduce, and power, moment of torsion decline 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, drive the magnetic field in motor gas-gap by permanent-magnet steel and electricity Exciting Windings for Transverse Differential Protection provides jointly, and magnetic field intensity is big, and the electric automobile salient pole electromagnetism that power density is high drives with embedded permanent magnetism mixing excitation Galvanic electricity machine, its technology contents is:
Electric automobile salient pole electromagnetism and embedded permanent magnetism mixing excitation drive motor to be turned by drive end bearing bracket, rear end cap, casing, composite excitation Son, stator composition, it is characterised in that: rotor with hybrid excitation by with carbon brush slip-ring structure salient pole electrical excitation rotor and embedded forever Magnet rotor forms;
Built-in permanent magnet rotor is made up of every magnetic air gap axle, rectangle permanent-magnet steel, tile permanent-magnet steel, rotor core, fan annular, rotor ferrum It is evenly equipped with even number on core and runs through the radial direction rectangular channel of rotor core thickness, the radially outer end of rectangular channel and the cylindrical of rotor core Between do not connect, in the middle of the outer end of adjacent two radially rectangular channels, be provided with the inner arc surface running through rotor core thickness towards turning The arc-shaped slot of sub-iron core cylindrical, arc-shaped slot does not connects with radially rectangular channel, outside the two ends of arc-shaped slot are with rotor core Do not connect between circle, be provided with in the inner of each radial direction rectangular channel and run through the fan annular of rotor core thickness every magnetic air gap, phase Adjacent fan annular does not connects every magnetic air gap, by rectangle permanent-magnet steel according to the N pole of adjacent two panels rectangle permanent-magnet steel, S the most relative with N Pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel, then tile permanent-magnet steel is pressed the polarity of inner arc surface with adjacent The identical mode of polarity that formed of two panels rectangle permanent-magnet steel be sequentially arranged in arc-shaped slot, rotor core is fitted on axle.
Operation principle: when driving motor to be passed through by three-phase inverter after the three-phase alternating current of pulsewidth modulation, drive motor Stator produces space rotating magnetic field, and it is magnetic field interaction produced by with rotor, and rotor produces and stator winding rotating excitation field The rotating torques that direction is consistent, makes driving rotor rotate, and then drives electric automobile to run.
Compared with prior art, rectangle permanent-magnet steel is embedded in radial direction rectangular channel the present invention, and tile permanent-magnet steel is embedded in circle In arcuate groove, it is possible to effectively prevent permanent-magnet steel from producing irreversible demagnetization under the armature-reaction effect of dash current, it is ensured that permanent magnetism Steel not loss of excitation, drives the magnetic field in motor gas-gap jointly to be provided by permanent-magnet steel and electrical excitation winding, and magnetic field intensity is big, output High.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the p-m rotor profile of embodiment illustrated in fig. 1.
In figure: 1, rear end cap 2, axle 3, casing 4, stator 5, tile permanent-magnet steel 6, rotor core 7, fan annular are every magnetic Air gap 8, rectangle permanent-magnet steel 9, drive end bearing bracket.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Electric automobile salient pole electromagnetism drives motor by drive end bearing bracket 9, rear end cap 1, casing 3 with embedded permanent magnetism mixing excitation, mixes and encourage Magnet rotor, stator 4 form, it is characterised in that: rotor with hybrid excitation by with carbon brush slip-ring structure salient pole electrical excitation rotor and Built-in permanent magnet rotor forms;
Built-in permanent magnet rotor is made up of every magnetic air gap 7 axle 2, rectangle permanent-magnet steel 8, tile permanent-magnet steel 5, rotor core 6, fan annular, It is evenly equipped with even number on rotor core 6 and runs through the radial direction rectangular channel of rotor core 6 thickness, the radially outer end of rectangular channel and rotor ferrum Do not connect between the cylindrical of core 6, in the middle of the outer end of adjacent two radial direction rectangular channels, be provided with the inner circle running through rotor core 6 thickness Cambered surface is towards the arc-shaped slot of rotor core 6 cylindrical, and arc-shaped slot does not connects with radially rectangular channel, the two ends of arc-shaped slot with turn Do not connect between the cylindrical of sub-iron core 6, be provided with the fan annular running through rotor core 6 thickness in the inner of each radial direction rectangular channel Every magnetic air gap 7, adjacent fan annular does not connects every magnetic air gap 7, by rectangle permanent-magnet steel 8 according to adjacent two panels rectangle permanent-magnet steel 8 N pole and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel, then by tile permanent-magnet steel 5 by inner circle The mode that polarity that the polarity of cambered surface is formed with adjacent two panels rectangle permanent-magnet steel 8 is identical is sequentially arranged in arc-shaped slot, turns Sub-iron core 6 is fitted on axle 2.

Claims (1)

1. electric automobile salient pole electromagnetism drives a motor with embedded permanent magnetism mixing excitation, by drive end bearing bracket (9), rear end cap (1), machine Shell (3), rotor with hybrid excitation, stator (4) form, it is characterised in that: convex by with carbon brush slip-ring structure of rotor with hybrid excitation Pole electrical excitation rotor and built-in permanent magnet rotor composition;
Built-in permanent magnet rotor by axle (2), rectangle permanent-magnet steel (8), tile permanent-magnet steel (5), rotor core (6), fan annular every magnetism Gap (7) forms, and rotor core (6) is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core (6) thickness, radially rectangular channel Outer end and the cylindrical of rotor core (6) between do not connect, be provided with to run through in the middle of the outer end of adjacent two radially rectangular channels and turn The inner arc surface of sub-iron core (6) thickness does not connects towards the arc-shaped slot of rotor core (6) cylindrical, arc-shaped slot with radially rectangular channel Logical, do not connect between the two ends of arc-shaped slot and the cylindrical of rotor core (6), be provided with in the inner of each radial direction rectangular channel and pass through The fan annular wearing rotor core (6) thickness does not connects every magnetic air gap (7), by rectangle permanent magnetism every magnetic air gap (7), adjacent fan annular Steel (8) according to adjacent two panels rectangle permanent-magnet steel (8) N pole and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged at footpath In rectangular channel, then the pole that tile permanent-magnet steel (5) is formed with adjacent two panels rectangle permanent-magnet steel (8) by the polarity of inner arc surface The mode that property is identical is sequentially arranged in arc-shaped slot, and rotor core (6) is fitted on axle (2).
CN201610306579.3A 2016-05-11 2016-05-11 Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles Pending CN105958772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610306579.3A CN105958772A (en) 2016-05-11 2016-05-11 Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610306579.3A CN105958772A (en) 2016-05-11 2016-05-11 Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles

Publications (1)

Publication Number Publication Date
CN105958772A true CN105958772A (en) 2016-09-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610306579.3A Pending CN105958772A (en) 2016-05-11 2016-05-11 Salient electromagnetic and embedded permanent magnet hybrid excitation drive motor for electric automobiles

Country Status (1)

Country Link
CN (1) CN105958772A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109905000A (en) * 2019-04-23 2019-06-18 山东理工大学 Radial and tangential permanent magnet magnetic pole mixed excitation electric machine method for production of rotor
CN109980808A (en) * 2019-04-23 2019-07-05 山东理工大学 Electromagnetism and built-in permanent magnetism mixing excitation driving motor method for production of rotor
CN109995165A (en) * 2019-04-23 2019-07-09 山东理工大学 Electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor

Citations (7)

* Cited by examiner, † Cited by third party
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
CN2829205Y (en) * 2005-09-21 2006-10-18 山东理工大学 Tangential permament magnet and electromagnetic mixed excitation generator
JP2007068239A (en) * 2005-08-29 2007-03-15 Inp Institute Of Technology Co Ltd Dynamo-electric machine and electromagnetic apparatus
US20080265705A1 (en) * 2003-08-02 2008-10-30 Yukio Kinoshita Rotary Machine and Electromagnetic Machine
CN102664502A (en) * 2012-04-21 2012-09-12 山东理工大学 Mixed permanent magnet and electromagnetism compound excitation generator
CN102957240A (en) * 2011-08-19 2013-03-06 台达电子企业管理(上海)有限公司 Motor rotor and rotary motor containing same
US20130134820A1 (en) * 2011-11-29 2013-05-30 Delta Electronics (Shanghai) Co., Ltd. Rotor and rotary electric machine containing the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
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
US20080265705A1 (en) * 2003-08-02 2008-10-30 Yukio Kinoshita Rotary Machine and Electromagnetic Machine
JP2007068239A (en) * 2005-08-29 2007-03-15 Inp Institute Of Technology Co Ltd Dynamo-electric machine and electromagnetic apparatus
CN2829205Y (en) * 2005-09-21 2006-10-18 山东理工大学 Tangential permament magnet and electromagnetic mixed excitation generator
CN102957240A (en) * 2011-08-19 2013-03-06 台达电子企业管理(上海)有限公司 Motor rotor and rotary motor containing same
US20130134820A1 (en) * 2011-11-29 2013-05-30 Delta Electronics (Shanghai) Co., Ltd. Rotor and rotary electric machine containing the same
CN102664502A (en) * 2012-04-21 2012-09-12 山东理工大学 Mixed permanent magnet and electromagnetism compound excitation generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109905000A (en) * 2019-04-23 2019-06-18 山东理工大学 Radial and tangential permanent magnet magnetic pole mixed excitation electric machine method for production of rotor
CN109980808A (en) * 2019-04-23 2019-07-05 山东理工大学 Electromagnetism and built-in permanent magnetism mixing excitation driving motor method for production of rotor
CN109995165A (en) * 2019-04-23 2019-07-09 山东理工大学 Electric car salient pole electromagnetism and combined magnetic pole, mixed excitation driving motor

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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160921

WD01 Invention patent application deemed withdrawn after publication