CN105811623A - Permanent magnet driving motor with built-in combined type radial and tangential magnetic fields - Google Patents

Permanent magnet driving motor with built-in combined type radial and tangential magnetic fields Download PDF

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Publication number
CN105811623A
CN105811623A CN201610306637.2A CN201610306637A CN105811623A CN 105811623 A CN105811623 A CN 105811623A CN 201610306637 A CN201610306637 A CN 201610306637A CN 105811623 A CN105811623 A CN 105811623A
Authority
CN
China
Prior art keywords
rotor
rectangular channel
magnet steel
permanent
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
CN201610306637.2A
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Chinese (zh)
Inventor
张学义
马清芝
杜钦君
李迪
刚宪约
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 CN201610306637.2A priority Critical patent/CN105811623A/en
Publication of CN105811623A publication Critical patent/CN105811623A/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]

Abstract

The invention provides a permanent magnet driving motor with built-in combined type radial and tangential magnetic fields, and belongs to the technical field of motors and electric appliances of electric automobiles. The permanent magnet driving motor comprises a front end cover, a back end cover, a machine case, a rotor and a stator, wherein the rotor of the driving motor is a permanent magnet rotor with the built-in combined type radial and tangential magnetic fields, so that high magnetic field strength and high power density are realized; the structure is a rotor magnetic bypass structure, so that 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 in addition, the driving motor is free of an electric excitation winding, low in electric energy consumption, free of a carbon brush and a mechanical commutator, low in fault rate, compact in structure, and reliable in operation.

Description

Embedded combination type radial direction and tangential magnetic field permanent magnet drive motor
Technical field
The present invention provides a kind of embedded combination type radial direction and tangential magnetic field permanent magnet 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, the magnetic field of drive motor is provided by permanent-magnet steel, few without electricity Exciting Windings for Transverse Differential Protection, power consumption, it does not have carbon brush and mechanical commutator, failure rate is low embedded combination type radially and tangential magnetic field permanent magnet drive motor, its technology contents is:
Embedded combination type is radially made up of drive end bearing bracket, rear end cap, casing, rotor, stator with tangential magnetic field permanent magnet drive motor, it is characterised in that: drive motor rotor is the permanent-magnet steel rotor of embedded combination type radial direction and tangential magnetic field;
nullEmbedded combination type radially with the permanent-magnet steel rotor of tangential magnetic field by axle、First rectangle permanent-magnet steel、Second rectangle permanent-magnet steel、Rotor core、Peariform slot forms 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,Rotor core thickness and the inverted "eight" shape groove formed by two the second rectangular channels it is provided with through in the middle of the outer end of adjacent two the first rectangular channels,Do not connect between outer end and the cylindrical of rotor core of the second rectangular channel,The inner of two the second rectangular channels forming inverted "eight" shape does not connect,First rectangular channel and the second rectangular channel do not connect,It is provided with through the peariform slot of rotor core thickness every magnetic air gap in the inner of each first rectangular channel,Peariform slot connects with the inner of the first rectangular channel every the outer end of magnetic air gap,Adjacent peariform slot does not connect every magnetic air gap,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 by 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 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, rectangle permanent-magnet steel is embedded in the first rectangular channel and second rectangular channel of rotor core respectively, the magnetic field of each magnetic pole of drive motor rotor is provided jointly by four 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 the 3, first rectangle permanent-magnet steel the 4, second rectangle permanent-magnet steel 5, rotor core 6, casing 7, stator 8, peariform slot is 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:
Embedded combination type is radially made up of drive end bearing bracket 2, rear end cap 9, casing 6, rotor, stator 7 with tangential magnetic field permanent magnet drive motor, it is characterised in that: drive motor rotor is the permanent-magnet steel rotor of embedded combination type radial direction and tangential magnetic field;
nullEmbedded combination type radially with the permanent-magnet steel rotor of tangential magnetic field by axle 1、First rectangle permanent-magnet steel 3、Second rectangle permanent-magnet steel 4、Rotor core 5、Peariform slot forms every magnetic air gap 8,Rotor core 5 is evenly equipped with even number and runs through the first rectangular channel of rotor core 5 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 5,Rotor core 5 thickness and the inverted "eight" shape groove formed by two the second rectangular channels it is provided with through in the middle of the outer end of adjacent two the first rectangular channels,Do not connect between the outer end of the second rectangular channel and the cylindrical of rotor core 5,The inner of two the second rectangular channels forming inverted "eight" shape does not connect,First rectangular channel and the second rectangular channel do not connect,The peariform slot of rotor core 5 thickness it is provided with through every magnetic air gap 8 in the inner of each first rectangular channel,Peariform slot connects with the inner of the first rectangular channel every the outer end of magnetic air gap 8,Adjacent peariform slot does not connect every magnetic air gap 8,First rectangle permanent-magnet steel 3 is extremely relative with N according to the N pole of adjacent two panels the first rectangle permanent-magnet steel 3、The S pole mode extremely relative with S is sequentially arranged in the first rectangular channel,Again the second rectangle permanent-magnet steel 4 is sequentially arranged in the second rectangular channel by the mode that the polarity of the second rectangle permanent-magnet steel 4 outer surface is identical with the polarity that adjacent two panels the first rectangle permanent-magnet steel 3 is formed,Rotor core 5 is fitted on axle 1.

Claims (1)

1. an embedded combination type radial direction and tangential magnetic field permanent magnet 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 the permanent-magnet steel rotor of embedded combination type radial direction and tangential magnetic field;
nullEmbedded combination type radially with the permanent-magnet steel rotor of tangential magnetic field by axle (1)、First rectangle permanent-magnet steel (3)、Second rectangle permanent-magnet steel (4)、Rotor core (5)、Peariform slot forms every magnetic air gap (8),Rotor core (5) is evenly equipped with even number and runs through the first rectangular channel of rotor core (5) 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 (5),Rotor core (5) thickness and the inverted "eight" shape groove formed by two the second rectangular channels it is provided with through in the middle of the outer end of adjacent two the first rectangular channels,Do not connect between the outer end of the second rectangular channel and the cylindrical of rotor core (5),The inner of two the second rectangular channels forming inverted "eight" shape does not connect,First rectangular channel and the second rectangular channel do not connect,The peariform slot of rotor core (5) thickness it is provided with through every magnetic air gap (8) in the inner of each first rectangular channel,Peariform slot connects with the inner of the first rectangular channel every the outer end of magnetic air gap (8),Adjacent peariform slot does not connect every magnetic air gap (8),First rectangle permanent-magnet steel (3) is extremely relative with N according to the N pole of adjacent two panels the first rectangle permanent-magnet steel (3)、The S pole mode extremely relative with S is sequentially arranged in the first rectangular channel,Again the second rectangle permanent-magnet steel (4) is sequentially arranged in the second rectangular channel by the mode that the polarity of the second rectangle permanent-magnet steel (4) outer surface is identical with the polarity that adjacent two panels the first rectangle permanent-magnet steel (3) is formed,Rotor core (5) is fitted on axle (1).
CN201610306637.2A 2016-05-11 2016-05-11 Permanent magnet driving motor with built-in combined type radial and tangential magnetic fields Pending CN105811623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610306637.2A CN105811623A (en) 2016-05-11 2016-05-11 Permanent magnet driving motor with built-in combined type radial and tangential magnetic fields

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610306637.2A CN105811623A (en) 2016-05-11 2016-05-11 Permanent magnet driving motor with built-in combined type radial and tangential magnetic fields

Publications (1)

Publication Number Publication Date
CN105811623A true CN105811623A (en) 2016-07-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610306637.2A Pending CN105811623A (en) 2016-05-11 2016-05-11 Permanent magnet driving motor with built-in combined type radial and tangential magnetic fields

Country Status (1)

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CN (1) CN105811623A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108599418A (en) * 2018-05-16 2018-09-28 华中科技大学 A kind of rotor core and motor of magnetic circuit tandem type hybrid permanent magnet controllable flux motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012212775A1 (en) * 2012-07-20 2014-01-23 Robert Bosch Gmbh Rotor assembly for internal rotor machine of electronically commutated electric motor, has sheet slats arranged in stack arrangement such that recesses project steering regions from stack arrangement and extend case for receiving magnet
WO2015049467A2 (en) * 2013-10-02 2015-04-09 Valeo Equipements Electriques Moteur Multiphase electric rotating machine with at least five phases

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012212775A1 (en) * 2012-07-20 2014-01-23 Robert Bosch Gmbh Rotor assembly for internal rotor machine of electronically commutated electric motor, has sheet slats arranged in stack arrangement such that recesses project steering regions from stack arrangement and extend case for receiving magnet
WO2015049467A2 (en) * 2013-10-02 2015-04-09 Valeo Equipements Electriques Moteur Multiphase electric rotating machine with at least five phases

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108599418A (en) * 2018-05-16 2018-09-28 华中科技大学 A kind of rotor core and motor of magnetic circuit tandem type hybrid permanent magnet controllable flux motor

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Application publication date: 20160727

RJ01 Rejection of invention patent application after publication