CN103887907A - Permanent magnet and electromagnet mixed excitation hub driving device of electric vehicle - Google Patents

Permanent magnet and electromagnet mixed excitation hub driving device of electric vehicle Download PDF

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Publication number
CN103887907A
CN103887907A CN201410140691.5A CN201410140691A CN103887907A CN 103887907 A CN103887907 A CN 103887907A CN 201410140691 A CN201410140691 A CN 201410140691A CN 103887907 A CN103887907 A CN 103887907A
Authority
CN
China
Prior art keywords
permanent
rotor
rotor core
hub
magnetic field
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
CN201410140691.5A
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Chinese (zh)
Inventor
张学义
杜钦君
马清芝
高松
徐进彬
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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 CN201410140691.5A priority Critical patent/CN103887907A/en
Publication of CN103887907A publication Critical patent/CN103887907A/en
Pending legal-status Critical Current

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    • 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 permanent magnet and electromagnet mixed excitation hub driving device of an electric vehicle and belongs to the technical field of automobile motor electric appliances. The permanent magnet and electromagnet mixed excitation hub driving device of the electric vehicle consists of a shaft, a front end cover, a rear end cover, a hub casing, a rotor, a stator and a stator support. An electro-magnetic winding coil is wound on a rotor iron core, winding is sequentially performed in a mode that the polarity produced by the inner side of the rotor iron core is identical to the polarity of the inner of permanent magnet steel fixed on the rotor iron core after direct current is switched on, a magnetic field in a hub driving air gap is provided by the permanent magnet steel and the electro-magnetic winding coil jointly, the magnetic field strength is large, and the power density of the hub driving device is high.

Description

Electric automobile permanent magnetism and electromagnetic hybrid excitation hub drive device
Technical field
The invention provides a kind of electric automobile permanent magnetism and electromagnetic hybrid excitation hub drive device, belong to electric motor of automobile technical field of electric appliances.
Background technology
The permanent-magnet steel of the hub driven motor rotor adopting on electric automobile at present sticks on hub-type internal side of shell mostly, permanent-magnet steel is directly in the face of air gap, electric automobile is met barrier while blocking in overload or driving wheel, stator winding produces larger impulse current, permanent-magnet steel is under the armature reaction effect of impulse current, may produce irreversible demagnetization, once permanent-magnet steel forms irreversible demagnetization, drive motors Efficiency Decreasing, power, moment of torsion declines rapidly, in addition, drive motors air gap internal magnetic field is only improved by permanent-magnet steel, magnetic field intensity is little, power density is low, its serviceability needs further improvement.
Summary of the invention
The object of this invention is to provide one and can overcome above-mentioned defect, magnetic field in hub drive device air gap is provided jointly by permanent-magnet steel and electric magnet exciting coil, magnetic field intensity is large, the electric automobile permanent magnetism that power density is high and electromagnetic hybrid excitation hub drive device, and its technology contents is:
Electric automobile permanent magnetism and electromagnetic hybrid excitation hub drive device are made up of axle, front end housing, rear end cap, hub-type casing, rotor, stator, stator support, it is characterized in that: the magnetic field of the each utmost point of hub drive device rotor is synthetic by permanent magnetic field and electricity excitation magnetic field series connection;
Rotor is by hub-type casing, the first screw, the second screw, rotor core, electricity excitation winding, permanent-magnet steel, pole shoe composition, rotor core is fixed in the circumferential groove in the middle of hub-type internal side of shell by the second screw, permanent-magnet steel is fixed on the inner side of rotor core by the first screw by pole shoe, the inner side polarity of two blocks of adjacent permanent-magnet steels is contrary, form the N utmost point, the extremely spaced permanent-magnetic outer rotor of S, electricity excitation winding pole coil is wrapped on rotor core, the mode that the polarity producing by the inner side that passes into rotor core after direct current is identical with polarity inside the permanent-magnet steel being fixed on this rotor core winds the line successively, the number of turn on each rotor core should equate, the head end of electricity excitation winding pole coil and tail end interior ring and the outer shroud of contact surface slip ring respectively.
operation principle:when hub drive device stator winding passes into by three-phase inverter after the three-phase alternating current of pulse-width modulation, hub drive device stator produces a space rotating magnetic field, the magnetic field interaction that it and rotor produce, rotor produces the rotating torques consistent with stator winding rotating magnetic field direction, hub drive device rotor is rotated, and then drive electric automobile operation.
The present invention compared with prior art, electricity excitation winding pole coil is wrapped on rotor core, the mode that the polarity producing by the inner side that passes into rotor core after direct current is identical with polarity inside the permanent-magnet steel being fixed on this rotor core winds the line successively, magnetic field in hub drive device air gap is provided jointly by permanent-magnet steel and electric magnet exciting coil, magnetic field intensity is large, and drive unit power density is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is profile embodiment illustrated in fig. 1.
In figure: 1, axle 2, front end housing 3, hub-type casing 4, the first screw 5, the second screw 6, rotor core 7, electric excitation winding 8, permanent-magnet steel 9, pole shoe 10, stator 11, stator support 12, rear end cap.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
Electric automobile permanent magnetism and electromagnetic hybrid excitation hub drive device, formed by axle 1, front end housing 2, rear end cap 12, hub-type casing 3, rotor, stator 10, stator support 11, it is characterized in that: the magnetic field of the each utmost point of hub drive device rotor is synthetic by permanent magnetic field and electricity excitation magnetic field series connection;
Rotor is by hub-type casing 3, the first screw 4, the second screw 5, rotor core 6, electricity excitation winding 7, permanent-magnet steel 8, pole shoe 9 forms, rotor core 6 is fixed in the circumferential groove in the middle of hub-type casing 3 inner sides by the second screw 5, permanent-magnet steel 8 is fixed on the inner side of rotor core 6 by the first screw 4 by pole shoe 9, the inner side polarity of two blocks of adjacent permanent-magnet steels 8 is contrary, form the N utmost point, the extremely spaced permanent-magnetic outer rotor of S, electricity excitation winding 7 coil windings are on rotor core 6, the polarity mode identical with the polarity that is fixed on permanent-magnet steel 8 inner sides on this rotor core 6 producing by the inner side that passes into rotor core 6 after direct current winds the line successively, the number of turn on each rotor core 6 should equate, the head end of electricity excitation winding 7 coils and tail end interior ring and the outer shroud of contact surface slip ring respectively.

Claims (1)

1. an electric automobile permanent magnetism and electromagnetic hybrid excitation hub drive device, formed by axle (1), front end housing (2), rear end cap (12), hub-type casing (3), rotor, stator (10), stator support (11), it is characterized in that: the magnetic field of the each utmost point of hub drive device rotor is synthetic by permanent magnetic field and electricity excitation magnetic field series connection;
Rotor is by hub-type casing (3), the first screw (4), the second screw (5), rotor core (6), electricity excitation winding (7), permanent-magnet steel (8), pole shoe (9) composition, rotor core (6) is fixed in the circumferential groove in the middle of hub-type casing (3) inner side by the second screw (5), permanent-magnet steel (8) is fixed on the inner side of rotor core (6) by the first screw (4) by pole shoe (9), the inner side polarity of adjacent two blocks of permanent-magnet steels (8) is contrary, form the N utmost point, the extremely spaced permanent-magnetic outer rotor of S, electricity excitation winding (7) coil winding is on rotor core (6), the mode that the polarity producing by the inner side that passes into rotor core (6) after direct current is identical with polarity inside the permanent-magnet steel (8) being fixed on this rotor core (6) winds the line successively, the number of turn on each rotor core (6) should equate, the head end of electricity excitation winding (7) coil and tail end interior ring and the outer shroud of contact surface slip ring respectively.
CN201410140691.5A 2014-04-10 2014-04-10 Permanent magnet and electromagnet mixed excitation hub driving device of electric vehicle Pending CN103887907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410140691.5A CN103887907A (en) 2014-04-10 2014-04-10 Permanent magnet and electromagnet mixed excitation hub driving device of electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410140691.5A CN103887907A (en) 2014-04-10 2014-04-10 Permanent magnet and electromagnet mixed excitation hub driving device of electric vehicle

Publications (1)

Publication Number Publication Date
CN103887907A true CN103887907A (en) 2014-06-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410140691.5A Pending CN103887907A (en) 2014-04-10 2014-04-10 Permanent magnet and electromagnet mixed excitation hub driving device of electric vehicle

Country Status (1)

Country Link
CN (1) CN103887907A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105762957A (en) * 2016-05-11 2016-07-13 山东理工大学 Built-in tangential and surface-mounted radial permanent magnet steel hub driving motor
WO2019037469A1 (en) * 2017-08-23 2019-02-28 合肥龙图腾信息技术有限公司 Magnetic control wheel based on electromagnetic propulsion system
CN112713669A (en) * 2020-12-22 2021-04-27 三峡大学 Novel amorphous alloy switched reluctance motor stator vibration reduction structure and application method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102355105A (en) * 2011-10-25 2012-02-15 王荣华 Novel synchronous electric motor and electric motor control system
CN202172349U (en) * 2011-07-08 2012-03-21 广东工业大学 Hybrid excitation motor apparatus
CN202586545U (en) * 2012-04-26 2012-12-05 张学义 Permanent magnet and electromagnetic series magnetic field hybrid excitation generator
JP2014050254A (en) * 2012-08-31 2014-03-17 Aisin Aw Co Ltd Excitation type rotary electric machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202172349U (en) * 2011-07-08 2012-03-21 广东工业大学 Hybrid excitation motor apparatus
CN102355105A (en) * 2011-10-25 2012-02-15 王荣华 Novel synchronous electric motor and electric motor control system
CN202586545U (en) * 2012-04-26 2012-12-05 张学义 Permanent magnet and electromagnetic series magnetic field hybrid excitation generator
JP2014050254A (en) * 2012-08-31 2014-03-17 Aisin Aw Co Ltd Excitation type rotary electric machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105762957A (en) * 2016-05-11 2016-07-13 山东理工大学 Built-in tangential and surface-mounted radial permanent magnet steel hub driving motor
WO2019037469A1 (en) * 2017-08-23 2019-02-28 合肥龙图腾信息技术有限公司 Magnetic control wheel based on electromagnetic propulsion system
US11173783B2 (en) 2017-08-23 2021-11-16 Hefei Longtotem Information Technology Co., Ltd. Magnetic control wheel based on electromagnetic propulsion system
CN112713669A (en) * 2020-12-22 2021-04-27 三峡大学 Novel amorphous alloy switched reluctance motor stator vibration reduction structure and application method thereof

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Application publication date: 20140625