CN105827039A - Composite permanent magnet and brushless electromagnetic hybrid excitation driving motor - Google Patents

Composite permanent magnet and brushless electromagnetic hybrid excitation driving motor Download PDF

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Publication number
CN105827039A
CN105827039A CN201610311855.5A CN201610311855A CN105827039A CN 105827039 A CN105827039 A CN 105827039A CN 201610311855 A CN201610311855 A CN 201610311855A CN 105827039 A CN105827039 A CN 105827039A
Authority
CN
China
Prior art keywords
rectangular channel
magnet steel
rotor core
rotor
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
CN201610311855.5A
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Chinese (zh)
Inventor
张学义
马清芝
郭宗和
徐红芹
王志福
Original Assignee
张学义
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 张学义 filed Critical 张学义
Priority to CN201610311855.5A priority Critical patent/CN105827039A/en
Publication of CN105827039A publication Critical patent/CN105827039A/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
    • 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
    • H02K1/278Surface mounted magnets; Inset magnets

Abstract

The invention provides a composite permanent magnet and brushless electromagnetic hybrid excitation driving motor, and belongs to the technical field of electric car motor electric appliances. The composite permanent magnet and brushless electromagnetic hybrid excitation driving motor is formed by a front end cover, a back end cover, a motor housing, a rotor and a stator, wherein rectangular permanent magnet steel are respectively arranged in tangential rectangular grooves and radial rectangular grooves, so that generation of irreversible demagnetization of the permanent magnet steel under the armature reaction of the impulse current can be avoided and no magnetic loss of the permanent magnet steel can be guaranteed. The magnetic fields in air gaps of the driving motor are provided by the permanent magnet steel and electrical excitation winding together, so that the magnetic field intensity is high and the output power is high.

Description

Composite permanet magnet drives motor with brushless electromagnetic hybrid excitation
Technical field
The present invention provides a kind of composite permanet magnet to drive motor with brushless electromagnetic hybrid excitation, belongs to motor in electric automobile technical field of electric appliances.
Background technology
nullThe rotor of the permanent magnet drive motor used on electric automobile at present uses 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,Irreversible demagnetization may be produced,Permanent magnet once forms irreversible demagnetization,Driving electric 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, drive the magnetic field in motor gas-gap jointly to be provided by permanent-magnet steel and electrical excitation winding, magnetic field intensity is big, and the composite permanet magnet that power density is high drives motor with brushless electromagnetic hybrid excitation, and its technology contents is:
Composite permanet magnet and brushless electromagnetic hybrid excitation drive motor to be 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 Lundell electrical excitation rotor and the composite permanent magnet rotor of non-carbonate slip ring structure;
nullComposite permanent magnet rotor is by axle、First rectangle permanent-magnet steel、Rotor core、Second rectangle permanent-magnet steel、Form every magnetic air gap,It is evenly equipped with even number on rotor core 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 tangential rectangular channel running through rotor core thickness it is provided with in the middle of the outer end of adjacent two radial direction rectangular channels,Radially rectangular channel does not connects with tangential rectangular channel,Connect between outer end and the cylindrical of rotor core of tangential rectangular channel,Each tangential rectangular channel inner edge midpoint is the most equal with the line at rotor core center,Be provided with in the inner of each radial direction rectangular channel run through rotor core thickness every magnetic air gap,Adjacent does not connects every magnetic air gap,First rectangle permanent-magnet steel is the most relative with N according to the N pole of adjacent two panels the first rectangle permanent-magnet steel、S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel,Again the identical mode of polarity that the second rectangle permanent-magnet steel is formed by the first rectangle permanent-magnet steel that the polarity of the second rectangle permanent-magnet steel lateral surface is adjacent with two panels is sequentially fixed in tangential rectangular channel by screw by pole shoe,Rotor core is fitted on axle.
Operation principle: be passed through by three-phase inverter after the three-phase alternating current of pulsewidth modulation when driving motor, motor stator is driven to produce 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 driving rotor rotate, and then drive electric automobile to run.
The present invention is compared with prior art, rectangle permanent-magnet steel is separately mounted in tangential rectangular channel and radial direction rectangular channel, 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, the magnetic field in motor gas-gap is driven jointly to be provided by permanent-magnet steel and electrical excitation winding, 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, second rectangle permanent-magnet steel 6, rotor core the 7, first rectangle permanent-magnet steel 8, every magnetic air gap 9, drive end bearing bracket.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings:
Composite permanet magnet and brushless electromagnetic hybrid excitation drive motor to be 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 Lundell electrical excitation rotor and the composite permanent magnet rotor of non-carbonate slip ring structure;
nullComposite permanent magnet rotor is by axle 2、First rectangle permanent-magnet steel 7、Rotor core 6、Second rectangle permanent-magnet steel 5、Form every magnetic air gap 8,It is evenly equipped with even number on rotor core 6 and runs through the radial direction rectangular channel of rotor core 6 thickness,Radially do not connect between the outer end of rectangular channel and the cylindrical of rotor core 6,The tangential rectangular channel running through rotor core 6 thickness it is provided with in the middle of the outer end of adjacent two radial direction rectangular channels,Radially rectangular channel does not connects with tangential rectangular channel,Connect between outer end and the cylindrical of rotor core 6 of tangential rectangular channel,Each tangential rectangular channel inner edge midpoint is the most equal with the line at rotor core 6 center,Be provided with in the inner of each radial direction rectangular channel run through rotor core 6 thickness every magnetic air gap 8,Adjacent does not connects every magnetic air gap 8,First rectangle permanent-magnet steel 7 is the most relative with N according to the N pole of adjacent two panels the first rectangle permanent-magnet steel 7、S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel,The mode that the polarity that formed by the first rectangle permanent-magnet steel 7 that the polarity of the second rectangle permanent-magnet steel 5 lateral surface is adjacent with two panels by second rectangle permanent-magnet steel 5 again is identical is sequentially fixed in tangential rectangular channel by screw by pole shoe,Rotor core 6 is fitted on axle 2.

Claims (1)

1. a composite permanet magnet drives motor with brushless electromagnetic hybrid excitation, 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 Lundell electrical excitation rotor and the composite permanent magnet rotor of non-carbonate slip ring structure;
nullComposite permanent magnet rotor is by axle (2)、First rectangle permanent-magnet steel (7)、Rotor core (6)、Second rectangle permanent-magnet steel (5)、Form every magnetic air gap (8),It is evenly equipped with even number on rotor core (6) and runs through the radial direction rectangular channel of rotor core (6) thickness,Radially do not connect between the outer end of rectangular channel and the cylindrical of rotor core (6),The tangential rectangular channel running through rotor core (6) thickness it is provided with in the middle of the outer end of adjacent two radial direction rectangular channels,Radially rectangular channel does not connects with tangential rectangular channel,Connect between outer end and the cylindrical of rotor core (6) of tangential rectangular channel,Each tangential rectangular channel inner edge midpoint is the most equal with the line at rotor core (6) center,Be provided with in the inner of each radial direction rectangular channel run through rotor core (6) thickness every magnetic air gap (8),Adjacent does not connects every magnetic air gap (8),First rectangle permanent-magnet steel (7) is the most relative with N according to the N pole of adjacent two panels the first rectangle permanent-magnet steel (7)、S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel,The mode that the polarity that formed by the first rectangle permanent-magnet steel (7) that the polarity of the second rectangle permanent-magnet steel (5) lateral surface is adjacent with two panels by second rectangle permanent-magnet steel (5) again is identical is sequentially fixed in tangential rectangular channel by screw by pole shoe,Rotor core (6) is fitted on axle (2).
CN201610311855.5A 2016-05-12 2016-05-12 Composite permanent magnet and brushless electromagnetic hybrid excitation driving motor Pending CN105827039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610311855.5A CN105827039A (en) 2016-05-12 2016-05-12 Composite permanent magnet and brushless electromagnetic hybrid excitation driving motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610311855.5A CN105827039A (en) 2016-05-12 2016-05-12 Composite permanent magnet and brushless electromagnetic hybrid excitation driving motor

Publications (1)

Publication Number Publication Date
CN105827039A true CN105827039A (en) 2016-08-03

Family

ID=56529256

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610311855.5A Pending CN105827039A (en) 2016-05-12 2016-05-12 Composite permanent magnet and brushless electromagnetic hybrid excitation driving motor

Country Status (1)

Country Link
CN (1) CN105827039A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105915009A (en) * 2016-05-13 2016-08-31 山东理工大学 Brushless electromagnetic and combined permanent magnet mixed excitation driving motor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000156946A (en) * 1998-11-19 2000-06-06 Yaskawa Electric Corp Permanent magnet field system-type rotor
JP2003061280A (en) * 2001-08-10 2003-02-28 Yamaha Motor Co Ltd Rotor for motor
CN102647067A (en) * 2012-04-21 2012-08-22 山东理工大学 Radial-tangential permanent magnet and electromagnetism mixed excitation generator
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
CN204349624U (en) * 2015-01-29 2015-05-20 珠海格力节能环保制冷技术研究中心有限公司 Rotor and there is its tangential permanent magnetic synchronous machine
CN204425070U (en) * 2015-02-06 2015-06-24 上海日立电器有限公司 A kind of permanent-magnet synchronous motor rotor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000156946A (en) * 1998-11-19 2000-06-06 Yaskawa Electric Corp Permanent magnet field system-type rotor
JP2003061280A (en) * 2001-08-10 2003-02-28 Yamaha Motor Co Ltd Rotor for 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
CN102647067A (en) * 2012-04-21 2012-08-22 山东理工大学 Radial-tangential permanent magnet and electromagnetism mixed excitation generator
CN204349624U (en) * 2015-01-29 2015-05-20 珠海格力节能环保制冷技术研究中心有限公司 Rotor and there is its tangential permanent magnetic synchronous machine
CN204425070U (en) * 2015-02-06 2015-06-24 上海日立电器有限公司 A kind of permanent-magnet synchronous motor rotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105915009A (en) * 2016-05-13 2016-08-31 山东理工大学 Brushless electromagnetic and combined permanent magnet mixed excitation driving motor

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Application publication date: 20160803

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