CN105811714A - Salient pole electromagnetic and built-in combined type permanent magnet hybrid excitation type driving motor for electric automobile - Google Patents

Salient pole electromagnetic and built-in combined type permanent magnet hybrid excitation type driving motor for electric automobile Download PDF

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Publication number
CN105811714A
CN105811714A CN201610311852.1A CN201610311852A CN105811714A CN 105811714 A CN105811714 A CN 105811714A CN 201610311852 A CN201610311852 A CN 201610311852A CN 105811714 A CN105811714 A CN 105811714A
Authority
CN
China
Prior art keywords
rectangular channel
rotor
magnet steel
rotor core
permanent magnet
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
CN201610311852.1A
Other languages
Chinese (zh)
Inventor
张学义
马清芝
田广东
史立伟
王志福
Original Assignee
张学义
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Filing date
Publication date
Application filed by 张学义 filed Critical 张学义
Priority to CN201610311852.1A priority Critical patent/CN105811714A/en
Publication of CN105811714A publication Critical patent/CN105811714A/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
    • H02K1/27Rotor 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
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02Details
    • H02K21/021Means for mechanical adjustment of the excitation flux
    • H02K21/028Means for mechanical adjustment of the excitation flux by modifying the magnetic circuit within the field or the armature, e.g. by using shunts, by adjusting the magnets position, by vectorial combination of field or armature sections
    • 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 discloses a salient pole electromagnetic and built-in combined type permanent magnet hybrid excitation type driving motor for an electric automobile, and belongs to the technical field of motors and electric appliances of electric automobiles. The hybrid excitation type driving motor comprises a front end cover, a back end cover, a machine case, a rotor and a stator, wherein rectangular permanent magnet steels are embedded in corresponding first rectangular grooves and second rectangular grooves respectively. The irreversible demagnetizing of the permanent magnet steels generated under an armature reaction of the impact current can be effectively prevented so as to ensure that the permanent magnet steels are not demagnetized; and the magnetic field in the air gap of the driving motor is jointly supplied by the permanent magnet steels and the electric exciting winding, so that high magnetic field strength and high output power are realized.

Description

Electric automobile salient pole electromagnetism and embedded combination type permanent magnetism mixing excitation drive motor
Technical field
The present invention provides a kind of electric automobile salient pole electromagnetism and embedded combination type permanent magnetism mixing excitation drive motor, belongs to motor in electric automobile technical field of electric appliances.
Background technology
nullThe rotor of the permanent magnet drive motor adopted on current electric automobile adopts 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,It is likely to produce irreversible demagnetization,Permanent magnet is once form irreversible demagnetization,Drive motor 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, magnetic field in drive motor air gap is provided jointly by permanent-magnet steel and electricity Exciting Windings for Transverse Differential Protection, magnetic field intensity is big, electric automobile salient pole electromagnetism that power density is high and embedded combination type permanent magnetism mixing excitation drive motor, and its technology contents is:
Electric automobile salient pole electromagnetism and embedded combination type permanent magnetism mixing excitation drive motor are made up of drive end bearing bracket, rear end cap, casing, rotor with hybrid excitation, stator, it is characterised in that: rotor with hybrid excitation is made up of salient pole electricity excitation rotor and the embedded combination type p-m rotor with carbon brush slip-ring structure;
nullEmbedded combination type p-m rotor is by axle、Rotor core、First rectangle permanent-magnet steel、Second rectangle permanent-magnet steel、Form every magnetic air gap,Rotor core is evenly equipped with even number and runs through the first rectangular channel of rotor core thickness,First rectangular channel is radial structure,Do not connect between outer end and the cylindrical of rotor core of the first rectangular channel,Second rectangular channel running through rotor core thickness of symmetry it is provided with in the inner both sides of each first rectangular channel,Jointly be provided with through in the inner of the inner of the first rectangular channel and the second rectangular channel of the first both sides, rectangular channel the inner rotor core thickness every magnetic air gap,All connect every the inner of magnetic air gap and the second rectangular channel of the first rectangular channel the inner and the first both sides, rectangular channel the inner,Adjacent does not connect every magnetic air gap,The outer end that adjacent two the second rectangular channels between two the first rectangular channels form positive "eight" shape and two the second rectangular channels does not connect,First rectangle permanent-magnet steel is extremely relative with N according to the N pole of adjacent two panels the first rectangle permanent-magnet steel、The S pole mode extremely relative with S is sequentially arranged in the first rectangular channel,Again the second rectangle permanent-magnet steel is sequentially arranged in the second rectangular channel according to the mode that the polarity of the second rectangle permanent-magnet steel outer surface is identical with the polarity that adjacent two panels the first rectangle permanent-magnet steel is formed,Rotor core is fitted on axle.
Operation principle: when drive motor passes into by three-phase inverter after the three-phase alternating current of pulsewidth modulation, drive motor stator produces space rotating magnetic field, it is magnetic field interaction produced by with rotor, rotor produces the rotating torques consistent with stator winding rotating excitation field direction, make drive motor rotor rotate, and then drive electric automobile to run.
The present invention is compared with prior art, rectangle permanent-magnet steel is embedded in the first rectangular channel and the second rectangular channel respectively, can effectively prevent permanent-magnet steel from producing irreversible demagnetization under the armature-reaction effect of dash current, ensure permanent-magnet steel not loss of excitation, magnetic field in drive motor air gap is provided jointly by permanent-magnet steel and electricity Exciting Windings for Transverse Differential Protection, magnetic field intensity is big, and output is 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 the 5, first rectangle permanent-magnet steel 6, rotor core 7, every magnetic air gap the 8, second rectangle permanent-magnet steel 9, drive end bearing bracket.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
Electric automobile salient pole electromagnetism and embedded combination type permanent magnetism mixing excitation drive motor are made up of drive end bearing bracket 9, rear end cap 1, casing 3, rotor with hybrid excitation, stator 4, it is characterised in that: rotor with hybrid excitation is made up of salient pole electricity excitation rotor and the embedded combination type p-m rotor with carbon brush slip-ring structure;
nullEmbedded combination type p-m rotor is by axle 2、Rotor core 6、First rectangle permanent-magnet steel 5、Second rectangle permanent-magnet steel 8、Form every magnetic air gap 9,Rotor core 6 is evenly equipped with even number and runs through the first rectangular channel of rotor core 6 thickness,First rectangular channel is radial structure,Do not connect between the outer end of the first rectangular channel and the cylindrical of rotor core 6,Second rectangular channel running through rotor core 6 thickness of symmetry it is provided with in the inner both sides of each first rectangular channel,Jointly be provided with through in the inner of the inner of the first rectangular channel and the second rectangular channel of the first both sides, rectangular channel the inner rotor core 6 thickness every magnetic air gap 7,All connect every the inner of magnetic air gap 7 with first rectangular channel the inner and the second rectangular channel of the first both sides, rectangular channel the inner,Adjacent does not connect every magnetic air gap 7,The outer end that adjacent two the second rectangular channels between two the first rectangular channels form positive "eight" shape and two the second rectangular channels does not connect,First rectangle permanent-magnet steel 5 is extremely relative with N according to the N pole of adjacent two panels the first rectangle permanent-magnet steel 5、The S pole mode extremely relative with S is sequentially arranged in the first rectangular channel,Again the second rectangle permanent-magnet steel 8 is sequentially arranged in the second rectangular channel according to the mode that the polarity of the second rectangle permanent-magnet steel 8 outer surface is identical with the polarity that adjacent two panels the first rectangle permanent-magnet steel is formed,Rotor core 6 is fitted on axle 2.

Claims (1)

1. an electric automobile salient pole electromagnetism and embedded combination type permanent magnetism mixing excitation drive motor, it is made up of drive end bearing bracket (9), rear end cap (1), casing (3), rotor with hybrid excitation, stator (4), it is characterised in that: rotor with hybrid excitation is made up of salient pole electricity excitation rotor and the embedded combination type p-m rotor with carbon brush slip-ring structure;
nullEmbedded combination type p-m rotor is by axle (2)、Rotor core (6)、First rectangle permanent-magnet steel (5)、Second rectangle permanent-magnet steel (8)、Form every magnetic air gap (7),Rotor core (6) is evenly equipped with even number and runs through the first rectangular channel of rotor core (6) thickness,First rectangular channel is radial structure,Do not connect between the outer end of the first rectangular channel and the cylindrical of rotor core (6),Second rectangular channel running through rotor core (6) thickness of symmetry it is provided with in the inner both sides of each first rectangular channel,Jointly be provided with through in the inner of the inner of the first rectangular channel and the second rectangular channel of the first both sides, rectangular channel the inner rotor core (6) thickness every magnetic air gap (7),All connect every the inner of magnetic air gap (7) with first rectangular channel the inner and the second rectangular channel of the first both sides, rectangular channel the inner,Adjacent does not connect every magnetic air gap (7),The outer end that adjacent two the second rectangular channels between two the first rectangular channels form positive "eight" shape and two the second rectangular channels does not connect,First rectangle permanent-magnet steel (5) is extremely relative with N according to the N pole of adjacent two panels the first rectangle permanent-magnet steel (5)、The S pole mode extremely relative with S is sequentially arranged in the first rectangular channel,Again the second rectangle permanent-magnet steel (8) is sequentially arranged in the second rectangular channel according to the mode that the polarity of the second rectangle permanent-magnet steel (8) outer surface is identical with the polarity that adjacent two panels the first rectangle permanent-magnet steel (5) is formed,Rotor core (6) is fitted on axle (2).
CN201610311852.1A 2016-05-12 2016-05-12 Salient pole electromagnetic and built-in combined type permanent magnet hybrid excitation type driving motor for electric automobile Pending CN105811714A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610311852.1A CN105811714A (en) 2016-05-12 2016-05-12 Salient pole electromagnetic and built-in combined type permanent magnet hybrid excitation type driving motor for electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610311852.1A CN105811714A (en) 2016-05-12 2016-05-12 Salient pole electromagnetic and built-in combined type permanent magnet hybrid excitation type driving motor for electric automobile

Publications (1)

Publication Number Publication Date
CN105811714A true CN105811714A (en) 2016-07-27

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Country Status (1)

Country Link
CN (1) CN105811714A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000333389A (en) * 1999-05-18 2000-11-30 Fujitsu General Ltd Permanent magnet motor
CN1545188A (en) * 2003-11-19 2004-11-10 南京航空航天大学 Mixed excitation synchronous motor
JP2008193809A (en) * 2007-02-05 2008-08-21 Asmo Co Ltd Embedded magnet type motor
CN101447722A (en) * 2008-12-08 2009-06-03 张学义 Mixed excitation generator with vacuum pump for vehicles
CN102647038A (en) * 2012-05-07 2012-08-22 杭州中骏汽车股份有限公司 Rotor of resultant magnetic field
CN102738930A (en) * 2007-11-28 2012-10-17 阿斯莫有限公司 Embedded magnet type 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
CN104485762A (en) * 2014-11-18 2015-04-01 珠海格力节能环保制冷技术研究中心有限公司 Rotor of permanent magnet synchronous motor and permanent magnet synchronous motor provided with same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000333389A (en) * 1999-05-18 2000-11-30 Fujitsu General Ltd Permanent magnet motor
CN1545188A (en) * 2003-11-19 2004-11-10 南京航空航天大学 Mixed excitation synchronous motor
JP2008193809A (en) * 2007-02-05 2008-08-21 Asmo Co Ltd Embedded magnet type motor
CN102738930A (en) * 2007-11-28 2012-10-17 阿斯莫有限公司 Embedded magnet type motor
CN101447722A (en) * 2008-12-08 2009-06-03 张学义 Mixed excitation generator with vacuum pump for vehicles
CN102647038A (en) * 2012-05-07 2012-08-22 杭州中骏汽车股份有限公司 Rotor of resultant magnetic field
CN103762766A (en) * 2014-02-18 2014-04-30 山东理工大学 Permanent-magnet hybrid magnetic circuit drive motor of electric vehicle
CN104485762A (en) * 2014-11-18 2015-04-01 珠海格力节能环保制冷技术研究中心有限公司 Rotor of permanent magnet synchronous motor and permanent magnet synchronous motor provided with same

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Application publication date: 20160727