CN105790476A - Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile - Google Patents

Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile Download PDF

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Publication number
CN105790476A
CN105790476A CN201610306658.4A CN201610306658A CN105790476A CN 105790476 A CN105790476 A CN 105790476A CN 201610306658 A CN201610306658 A CN 201610306658A CN 105790476 A CN105790476 A CN 105790476A
Authority
CN
China
Prior art keywords
magnet steel
rotor
drive motor
rotor core
tangential
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
CN201610306658.4A
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Chinese (zh)
Inventor
张学义
马清芝
杜钦君
史立伟
刘从臻
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Shandong University of Technology
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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 CN201610306658.4A priority Critical patent/CN105790476A/en
Publication of CN105790476A publication Critical patent/CN105790476A/en
Pending legal-status Critical Current

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Classifications

    • 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]
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K29/00Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • 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 built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for an electric automobile, and belongs to the technical field of electric automobile motors and electric appliances. The drive motor consists of a front end cover, a rear end cover, a motor case, a rotor, and a stator. A rotor of the drive motor is a built-in tangential and radial permanent magnet steel combined-type magnetic pole permanent magnet rotor, is large in magnetic field intensity, and is high in power density. The drive motor is in a rotor magnetic bypass structure, can effectively prevent permanent magnet steels from generating irreversible demagnetization under the action of armature reaction of an impact current, and guarantees that the permanent magnet steels cannot be demagnetized. Moreover, the drive motor does not need an electric exciting winding, is small in electric energy consumption, has no carbon brush and mechanical commutator, is low in fault rate, is compact in structure, and is reliable in work.

Description

Electric automobile built-in tangential and radial permanent magnet steel combination type magnetic pole drive motor
Technical field
The present invention provides a kind of electric automobile built-in tangential and radial permanent magnet steel combination type magnetic pole drive motor, belongs to motor in electric automobile technical field of electric appliances.
Background technology
Current and the matching used drive motor of electric automobile mostly adopts the direct current generator with carbon brush and mechanical commutator, although DC motor structure is simple, controllability is high, speed-regulating range width, control circuit is relatively easy, less costly, but owing to the magnetic field of direct-drive motor is produced by electricity Exciting Windings for Transverse Differential Protection, power consumption is many, delivery efficiency is low, additionally, due to there is carbon brush and mechanical commutator, not only limit the raising of drive motor overload capacity and speed, if long-play, certainly will be required frequent maintenance and replacement carbon brush and diverter, therefore direct current generator energy consumption is big, fault rate is high, 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 motor rotor field is provided by permanent-magnet steel, few without electricity Exciting Windings for Transverse Differential Protection, power consumption, not having carbon brush and electric automobile built-in tangential and the radial permanent magnet steel combination type magnetic pole drive motor of mechanical commutator, failure rate is low, its technology contents is:
Electric automobile built-in tangential and radial permanent magnet steel combination type magnetic pole drive motor are made up of drive end bearing bracket, rear end cap, casing, rotor, stator, it is characterised in that: drive motor rotor is built-in tangential and radial magnetic field p-m rotor;
nullBuilt-in tangential and radial magnetic field p-m rotor are by axle、Rectangle permanent-magnet steel、Tile permanent-magnet steel、Rotor core、Fan annular forms every magnetic air gap,Rotor core is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core thickness,Radially do not connect between outer end and the cylindrical of rotor core of rectangular channel,The inner arc surface arc-shaped slot towards rotor core cylindrical of rotor core thickness it is provided with through in the middle of the outer end of adjacent two radial direction rectangular channels,Arc-shaped slot does not connect with radially rectangular channel,All do not connect between two ends and the cylindrical of rotor core of arc-shaped slot,The fan annular of rotor core thickness it is provided with through every magnetic air gap in the inner of each radial direction rectangular channel,Adjacent fan annular does not connect every magnetic air gap,Rectangle permanent-magnet steel is extremely relative with N according to the N pole of adjacent two panels rectangle permanent-magnet steel、The S pole mode extremely relative with S is sequentially arranged at radially in rectangular channel,Again tile permanent-magnet steel is sequentially arranged in arc-shaped slot by the mode that the polarity of tile permanent-magnet steel inner arc surface is identical with the polarity that adjacent two panels rectangle permanent-magnet steel is formed,Rotor core is fitted on axle.
Operation principle: when permanent magnet drive motor passes into by three-phase inverter after the three-phase alternating current of pulsewidth modulation, drive motor stator produces a space rotating magnetic field, it is magnetic field interaction produced by with rotor permanent magnet steel, rotor produces the rotating torques consistent with stator winding rotating excitation field direction, make drive motor p-m rotor rotate, and then drive electric automobile to run.
The present invention is compared with prior art, permanent-magnet steel is embedded in radial direction rectangular channel and the arc-shaped slot of rotor core respectively, the magnetic field of each magnetic pole of drive motor rotor is provided jointly by three permanent-magnet steels, magnetic field intensity is big, power density is high, and few without electricity Exciting Windings for Transverse Differential Protection, power consumption, it does not have carbon brush and mechanical commutator, failure rate is low, there is the features such as high efficiency, high power density, compact conformation, reliable operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the rotor profiles figure of embodiment illustrated in fig. 1.
In figure: 1, axle 2, drive end bearing bracket 3, rectangle permanent-magnet steel 4, tile permanent-magnet steel 5, rotor core 6, casing 7, stator 8, fan annular every magnetic air gap 9, rear end cap.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
Electric automobile built-in tangential and radial permanent magnet steel combination type magnetic pole drive motor are made up of drive end bearing bracket 2, rear end cap 9, casing 6, rotor, stator 7, it is characterised in that: drive motor rotor is built-in tangential and radial magnetic field p-m rotor;
nullBuilt-in tangential and radial magnetic field p-m rotor are by axle 1、Rectangle permanent-magnet steel 3、Tile permanent-magnet steel 4、Rotor core 5、Fan annular forms every magnetic air gap 8,Rotor core 5 is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core 5 thickness,Radially do not connect between outer end and the cylindrical of rotor core 5 of rectangular channel,The inner arc surface arc-shaped slot towards rotor core 5 cylindrical of rotor core 5 thickness it is provided with through in the middle of the outer end of adjacent two radial direction rectangular channels,Arc-shaped slot does not connect with radially rectangular channel,All do not connect between the two ends of arc-shaped slot and the cylindrical of rotor core 5,The fan annular of rotor core 5 thickness it is provided with through every magnetic air gap 8 in the inner of each radial direction rectangular channel,Adjacent fan annular does not connect every magnetic air gap 8,Rectangle permanent-magnet steel 3 is extremely relative with N according to the N pole of adjacent two panels rectangle permanent-magnet steel 3、The S pole mode extremely relative with S is sequentially arranged at radially in rectangular channel,Again tile permanent-magnet steel 4 is sequentially arranged in arc-shaped slot by the mode that the polarity of tile permanent-magnet steel 4 inner arc surface is identical with the polarity that adjacent two panels rectangle permanent-magnet steel 3 is formed,Rotor core 5 is fitted on axle 1.

Claims (1)

1. an electric automobile built-in tangential and radial permanent magnet steel combination type magnetic pole drive motor, it is made up of drive end bearing bracket (2), rear end cap (9), casing (6), rotor, stator (7), it is characterised in that: drive motor rotor is built-in tangential and radial magnetic field p-m rotor;
nullBuilt-in tangential and radial magnetic field p-m rotor are by axle (1)、Rectangle permanent-magnet steel (3)、Tile permanent-magnet steel (4)、Rotor core (5)、Fan annular forms every magnetic air gap (8),Rotor core (5) is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core (5) thickness,Radially do not connect between outer end and the cylindrical of rotor core (5) of rectangular channel,The inner arc surface arc-shaped slot towards rotor core (5) cylindrical of rotor core (5) thickness it is provided with through in the middle of the outer end of adjacent two radial direction rectangular channels,Arc-shaped slot does not connect with radially rectangular channel,All do not connect between the two ends of arc-shaped slot and the cylindrical of rotor core (5),The fan annular of rotor core (5) thickness it is provided with through every magnetic air gap (8) in the inner of each radial direction rectangular channel,Adjacent fan annular does not connect every magnetic air gap (8),Rectangle permanent-magnet steel (3) is extremely relative with N according to the N pole of adjacent two panels rectangle permanent-magnet steel (3)、The S pole mode extremely relative with S is sequentially arranged at radially in rectangular channel,Again tile permanent-magnet steel (4) is sequentially arranged in arc-shaped slot by the mode that the polarity of tile permanent-magnet steel (4) inner arc surface is identical with the polarity that adjacent two panels rectangle permanent-magnet steel (3) is formed,Rotor core (5) is fitted on axle (1).
CN201610306658.4A 2016-05-11 2016-05-11 Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile Pending CN105790476A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610306658.4A CN105790476A (en) 2016-05-11 2016-05-11 Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610306658.4A CN105790476A (en) 2016-05-11 2016-05-11 Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile

Publications (1)

Publication Number Publication Date
CN105790476A true CN105790476A (en) 2016-07-20

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Application Number Title Priority Date Filing Date
CN201610306658.4A Pending CN105790476A (en) 2016-05-11 2016-05-11 Built-in tangential and radial permanent magnet steel combined-type magnetic pole drive motor for electric automobile

Country Status (1)

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CN (1) CN105790476A (en)

Cited By (2)

* 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
CN109995198A (en) * 2019-04-23 2019-07-09 山东理工大学 Single biradial is spaced apart magnetic pole type driving motor method for production of rotor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009112181A (en) * 2007-11-01 2009-05-21 Nissan Motor Co Ltd Rotator of permanent magnet type motor
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
CN202798411U (en) * 2012-09-05 2013-03-13 四川阿克拉斯电动车有限公司 Rotor structure of tangential magnetic brushless direct current (DC) motor
CN103762765A (en) * 2014-02-18 2014-04-30 山东理工大学 Tangential and radial resultant magnetic field embedded permanent magnet rotor driving 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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009112181A (en) * 2007-11-01 2009-05-21 Nissan Motor Co Ltd Rotator of permanent magnet type motor
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
CN202798411U (en) * 2012-09-05 2013-03-13 四川阿克拉斯电动车有限公司 Rotor structure of tangential magnetic brushless direct current (DC) motor
CN103762765A (en) * 2014-02-18 2014-04-30 山东理工大学 Tangential and radial resultant magnetic field embedded permanent magnet rotor driving 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

Cited By (2)

* 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
CN109995198A (en) * 2019-04-23 2019-07-09 山东理工大学 Single biradial is spaced apart magnetic pole type driving motor method for production of rotor

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Application publication date: 20160720