CN105978279A - Rare-earth permanent magnetic driving motor embedded with tangential and radial synthesis magnetic field - Google Patents

Rare-earth permanent magnetic driving motor embedded with tangential and radial synthesis magnetic field Download PDF

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Publication number
CN105978279A
CN105978279A CN201610311817.XA CN201610311817A CN105978279A CN 105978279 A CN105978279 A CN 105978279A CN 201610311817 A CN201610311817 A CN 201610311817A CN 105978279 A CN105978279 A CN 105978279A
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CN
China
Prior art keywords
magnetic
tangential
rotor
rotor core
rectangular channel
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
CN201610311817.XA
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Chinese (zh)
Inventor
张学义
马清芝
郭宗和
徐红芹
王静
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 CN201610311817.XA priority Critical patent/CN105978279A/en
Publication of CN105978279A publication Critical patent/CN105978279A/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 rotor
    • H02K1/272Inner rotor where the magnetisation axis of the magnets is radial or tangential
    • H02K1/274Inner rotor where the magnetisation axis of the magnets is radial or tangential consisting of a plurality of circumferentially positioned magnets
    • H02K1/2753Inner rotor where the magnetisation axis of the magnets is radial or tangential consisting of a plurality of circumferentially positioned magnets consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276Magnets embedded in the magnetic core
    • H02K1/2766Magnets embedded in the magnetic core having a flux concentration effect
    • H02K1/2773Magnets embedded in the magnetic core 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
    • H02K21/12Synchronous 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

Abstract

The invention provides a rare-earth permanent magnetic driving motor embedded with a tangential and radial synthesis magnetic field, and belongs to the technical field of motors and electric appliances of electromobile. The motor is composed of a front end cap, a rear end cap, a casing, a rotor and a stator, and the rotor of the driving motor is an embedded permanent magnetic rotor including the tangential and radial synthesis magnetic field. The intensity of the magnetic field is high, power density is high, a magnetic bypass structure of the rotor can effectively solve the problem that irreversible demagnetization is generated when permanent magnet steel is subjected to the armature reaction effect of impact current, it is ensured that the permanent magnet steel is not demagnetized, an electric excitation winding is not needed, the power consumption is low, neither a carbon brush nor a mechanical commutator is included, the fault rate is low, the structure is compact and work is reliable.

Description

Embedded tangential and radial direction resultant magnetic field rare earth permanent magnet drives motor
Technical field
The present invention provides a kind of embedded tangential and radial direction resultant magnetic field rare earth permanent magnet driving motor, belongs to motor in electric automobile Technical field of electric appliances.
Background technology
Current and electric automobile matching used driving motor mostly uses the unidirectional current with carbon brush and mechanical commutator Machine, although DC motor structure is simple, controllability is high, speed-regulating range width, control circuit are relatively easy, cost is relatively low, but Owing to the magnetic field of direct-drive motor is produced by electrical excitation winding, power consumption is many, delivery efficiency is low, additionally, due to there is carbon brush And mechanical commutator, not only limit driving motor overload ability and the raising of speed, and if long-play, Shi Bixu Often to safeguard and to change carbon brush and diverter, therefore direct current generator energy consumption is big, fault rate is high, and its serviceability awaits into one Step is improved.
Summary of the invention
It is an object of the invention to provide one and can overcome drawbacks described above, drive the magnetic field of motor to be provided by permanent-magnet steel, it is not necessary to Electrical excitation winding, power consumption are few, do not have carbon brush and mechanical commutator, failure rate is low embedded tangential dilute with radial direction resultant magnetic field Soil permanent magnet drive motor, its technology contents is:
Embedded tangential it is made up of drive end bearing bracket, rear end cap, casing, rotor, stator with radially resultant magnetic field rare earth permanent magnet driving motor, It is characterized in that: driving rotor is tangential magnetic field and the built-in permanent magnet rotor of radial magnetic field resultant magnetic field;
Built-in permanent magnet rotor by axle, the first rectangle permanent-magnet steel, the second rectangle permanent-magnet steel, rotor core, form every magnetic air gap, rotor It is evenly equipped with even number on iron core and runs through the radial direction rectangular channel of rotor core thickness, outside radially the outer end of rectangular channel is with rotor core Do not connect between circle, in the middle of the outer end of adjacent two radial direction rectangular channels, be provided with the tangential rectangular channel running through rotor core thickness, Radially rectangular channel does not connects with tangential rectangular channel, and the minimum dimension of the outside of each tangential rectangular channel to rotor core cylindrical is 1.5mm, the inner edge midpoint of each tangential rectangular channel is the most equal with the line at rotor core center, at each radial direction rectangular channel The inner be provided with run through rotor core thickness every magnetic air gap, adjacent does not connects every magnetic air gap, by the first rectangle permanent-magnet steel according to The N pole of adjacent two panels the first rectangle permanent-magnet steel and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged at radially rectangular channel In, then the polarity of polarity that the second rectangle permanent-magnet steel press the lateral surface first rectangle permanent-magnet steel formation adjacent with two panels is identical Mode is sequentially arranged in tangential rectangular channel, and rotor core is fitted on axle.
Operation principle: when permanent magnet drive motor is passed through by three-phase inverter after the three-phase alternating current of pulsewidth modulation, drives Armature winding produces a space rotating magnetic field, and it is magnetic field interaction produced by with rotor permanent magnet steel, and rotor produces The rotating torques consistent with armature winding rotating excitation field direction, makes driving motor permanent magnetic rotor rotate, and then drives electric automobile Run.
Compared with prior art, rectangle permanent-magnet steel is embedded in tangential rectangular channel and the radial direction square of rotor core to the present invention respectively In shape groove, driving rotor magnetic field jointly to be provided by tangential magnetic field and radial magnetic field, magnetic field intensity is big, and power density is high, and And few without electrical excitation winding, power consumption, there is no carbon brush and mechanical commutator, failure rate is low, there is high efficiency, high power close The features such as degree, 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, every magnetic air gap 9, rear end cap.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Embedded tangential and radial direction resultant magnetic field rare earth permanent magnet drives motor by drive end bearing bracket 2, rear end cap 9, casing 6, rotor, stator 7 Composition, it is characterised in that: driving rotor is tangential magnetic field and the built-in permanent magnet rotor of radial magnetic field resultant magnetic field;
Built-in permanent magnet rotor by axle the 1, first rectangle permanent-magnet steel the 3, second rectangle permanent-magnet steel 4, rotor core 5, every magnetic air gap 8 groups Become, rotor core 5 be evenly equipped with even number and run through the radial direction rectangular channel of rotor core 5 thickness, radially the outer end of rectangular channel with turn Do not connect between the cylindrical of sub-iron core 5, be provided with in the middle of the outer end of adjacent two radial direction rectangular channels and run through rotor core 5 thickness Tangential rectangular channel, radially rectangular channel does not connects with tangential rectangular channel, and the outside of each tangential rectangular channel is to rotor core 5 cylindrical Minimum dimension be 1.5mm, the inner edge midpoint of each tangential rectangular channel is the most equal with the line at rotor core 5 center, often The inner of individual radial direction rectangular channel be provided with run through rotor core 5 thickness every magnetic air gap 8, adjacent does not connects every magnetic air gap 8, by One rectangle permanent-magnet steel 3 according to adjacent two panels the first rectangle permanent-magnet steel 3 N pole and N extremely relative to, S pole and S extremely relative to mode depend on Secondary it is arranged on radially in rectangular channel, then polarity that the second rectangle permanent-magnet steel 4 is pressed lateral surface first rectangle adjacent with two panels is forever The mode that the polarity of magnet steel 3 formation is identical is sequentially arranged in tangential rectangular channel, and rotor core 5 is fitted on axle 1.

Claims (1)

1. embedded tangential and radial direction resultant magnetic field rare earth permanent magnet drives a motor, by drive end bearing bracket (2), rear end cap (9), casing (6), rotor, stator (7) composition, it is characterised in that: driving rotor is the interior of tangential magnetic field and radial magnetic field resultant magnetic field Embedding p-m rotor;
Built-in permanent magnet rotor by axle (1), the first rectangle permanent-magnet steel (3), the second rectangle permanent-magnet steel (4), rotor core (5), every magnetic Air gap (8) forms, and rotor core (5) is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core (5) thickness, radially rectangle Do not connect between the outer end of groove and the cylindrical of rotor core (5), be provided with in the middle of the outer end of adjacent two radial direction rectangular channels and run through The tangential rectangular channel of rotor core (5) thickness, radially rectangular channel does not connects with tangential rectangular channel, outside each tangential rectangular channel Limit is 1.5mm to the minimum dimension of rotor core (5) cylindrical, the inner edge midpoint of each tangential rectangular channel and rotor core (5) The line at center is the most equal, be provided with in the inner of each radial direction rectangular channel run through rotor core (5) thickness every magnetic air gap (8), Adjacent does not connects every magnetic air gap (8), by the first rectangle permanent-magnet steel (3) according to the N of adjacent two panels the first rectangle permanent-magnet steel (3) Pole and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel, then the second rectangle permanent-magnet steel (4) is pressed The mode that polarity that the first rectangle permanent-magnet steel (3) that the polarity of lateral surface is adjacent with two panels is formed is identical is sequentially arranged at tangential square In shape groove, rotor core (5) is fitted on axle (1).
CN201610311817.XA 2016-05-12 2016-05-12 Rare-earth permanent magnetic driving motor embedded with tangential and radial synthesis magnetic field Pending CN105978279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610311817.XA CN105978279A (en) 2016-05-12 2016-05-12 Rare-earth permanent magnetic driving motor embedded with tangential and radial synthesis magnetic field

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610311817.XA CN105978279A (en) 2016-05-12 2016-05-12 Rare-earth permanent magnetic driving motor embedded with tangential and radial synthesis magnetic field

Publications (1)

Publication Number Publication Date
CN105978279A true CN105978279A (en) 2016-09-28

Family

ID=56992713

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610311817.XA Pending CN105978279A (en) 2016-05-12 2016-05-12 Rare-earth permanent magnetic driving motor embedded with tangential and radial synthesis magnetic field

Country Status (1)

Country Link
CN (1) CN105978279A (en)

Cited By (2)

* 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
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

Citations (5)

* 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
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
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
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
CN104734447A (en) * 2015-04-09 2015-06-24 北京杰诺瑞特机电科技有限公司 Hybrid magnetic circuit permanent magnetic synchronous motor and solid rotor structure thereof

Patent Citations (5)

* 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
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
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
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
CN104734447A (en) * 2015-04-09 2015-06-24 北京杰诺瑞特机电科技有限公司 Hybrid magnetic circuit permanent magnetic synchronous motor and solid rotor structure thereof

Cited By (2)

* 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
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

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Application publication date: 20160928