CN105958775A - Permanent-magnetic and claw pole electromagnetic hybrid excitation drive motor - Google Patents

Permanent-magnetic and claw pole electromagnetic hybrid excitation drive motor Download PDF

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Publication number
CN105958775A
CN105958775A CN201610306606.7A CN201610306606A CN105958775A CN 105958775 A CN105958775 A CN 105958775A CN 201610306606 A CN201610306606 A CN 201610306606A CN 105958775 A CN105958775 A CN 105958775A
Authority
CN
China
Prior art keywords
permanent
magnet steel
rotor core
rectangular channel
rotor
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.)
Granted
Application number
CN201610306606.7A
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Chinese (zh)
Other versions
CN105958775B (en
Inventor
张学义
马清芝
李波
杨坤
马超
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Shandong University of Technology
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Shandong University of Technology
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Priority to CN201610306606.7A priority Critical patent/CN105958775B/en
Publication of CN105958775A publication Critical patent/CN105958775A/en
Application granted granted Critical
Publication of CN105958775B publication Critical patent/CN105958775B/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner 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
    • H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • H02K1/2773—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect consisting of tangentially magnetized radial magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner 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
    • H02K1/278—Surface mounted magnets; Inset magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02—Details
    • H02K21/04—Windings on magnets for additional excitation ; Windings and magnets for additional excitation
    • H02K21/042—Windings on magnets for additional excitation ; Windings and magnets for additional excitation with permanent magnets and field winding both rotating
    • H02K21/044—Rotor of the claw pole type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention provides a permanent-magnetic and claw pole electromagnetic hybrid excitation drive motor, and belongs to the technical field of electric automobile motors and appliances. The drive motor is composed of a front end cover, a rear end cover, a case, a rotor, and a stator. Rectangular permanent magnet steel pieces are respectively installed in tangential rectangular slots and radial rectangular slots. The permanent magnet steel pieces can be effectively prevented from generating irreversible demagnetization under the armature reaction effect of impact current, and that the permanent magnet steel pieces do not lose magnetism is ensured. The magnetic field in the air gap of the drive motor is provided jointly by the permanent magnet steel pieces and an electric excitation winding. The magnetic field is strong, and the output power is high.

Description

Permanent magnetism drives motor with pawl pole electromagnetic hybrid excitation
Technical field
The present invention provides a kind of permanent magnetism to drive motor with pawl pole electromagnetic hybrid excitation, belongs to motor in electric automobile electrical apparatus technology Field.
Background technology
The rotor of the permanent magnet drive motor used on electric automobile at present uses the outer damascene structures of permanent magnet mostly, as existing There is technology, 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, and rotating shaft is fixed with rotor core Connecting, the outer surface of rotor core is evenly distributed with even number T-shaped voussoir, constitutes slot, permanent magnet pair between adjacent T-shaped voussoir Should be embedded in slot, the permanent magnet of this construction rotor is directly facing air gap, under the armature-reaction effect of dash current, and may Producing irreversible demagnetization, permanent magnet once forms irreversible demagnetization, drives electric efficiency to reduce, and power, moment of torsion decline 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 by permanent-magnet steel and electricity Exciting Windings for Transverse Differential Protection provides jointly, and magnetic field intensity is big, and the permanent magnetism that power density is high drives motor, its technology with pawl pole electromagnetic hybrid excitation Content is:
Permanent magnetism and pawl pole 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 characterized in that: rotor with hybrid excitation is by with the Lundell electrical excitation rotor of carbon brush slip-ring structure and combination type permanent-magnet rotor set Become；
Combination type permanent-magnet rotor by axle, the first rectangle permanent-magnet steel, rotor core, the second rectangle permanent-magnet steel, form every magnetic air gap, turns It is evenly equipped with even number on sub-iron core and runs through the radial direction rectangular channel of rotor core thickness, the radially outer end of rectangular channel and rotor core Do not connect between cylindrical, in the middle of the outer end of adjacent two radial direction rectangular channels, be provided with the tangential rectangle running through rotor core thickness Groove, radially rectangular channel does not connects with tangential rectangular channel, connects between outer end and the cylindrical of rotor core of tangential rectangular channel, each Individual tangential rectangular channel inner edge midpoint is the most equal with the line at rotor core center, is provided with in the inner of each radial direction rectangular channel and runs 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 adjacent two panels The N pole of one rectangle permanent-magnet steel and N extremely relative to, S pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel, then by second The identical mode of polarity that rectangle permanent-magnet steel is formed by the first rectangle permanent-magnet steel that the polarity of lateral surface and two panels are adjacent passes through pole Boots are sequentially fixed in tangential rectangular channel by screw, and rotor core is fitted on axle.
Operation principle: when driving motor to be passed through by three-phase inverter after the three-phase alternating current of pulsewidth modulation, drive motor Stator produces space rotating magnetic field, and it is magnetic field interaction produced by with rotor, and rotor produces and stator winding rotating excitation field The rotating torques that direction is consistent, makes driving rotor rotate, and then drives electric automobile to run.
Compared with prior art, rectangle permanent-magnet steel is separately mounted in tangential rectangular channel and radial direction rectangular channel the present invention, energy Enough effectively prevent permanent-magnet steel from producing irreversible demagnetization under the armature-reaction effect of dash current, it is ensured that permanent-magnet steel not loss of excitation, drive Magnetic field in dynamic motor gas-gap is provided jointly by permanent-magnet steel and electrical excitation winding, and 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 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:
Permanent magnetism and pawl pole electromagnetic hybrid excitation drive motor by drive end bearing bracket 9, rear end cap 1, casing 3, rotor with hybrid excitation, stator 4 Composition, it is characterised in that: rotor with hybrid excitation is by with the Lundell electrical excitation rotor of carbon brush slip-ring structure and combination type permanent-magnet Rotor forms；
Combination type permanent-magnet rotor by axle the 2, first rectangle permanent-magnet steel 7, rotor core the 6, second rectangle permanent-magnet steel 5, every magnetic air gap 8 groups Become, rotor core 6 be evenly equipped with even number and run through the radial direction rectangular channel of rotor core 6 thickness, radially the outer end of rectangular channel with turn Do not connect between the cylindrical of sub-iron core 6, be provided with in the middle of the outer end of adjacent two radial direction rectangular channels and run through rotor core 6 thickness Tangential rectangular channel, radially rectangular channel does not connects with tangential rectangular channel, between outer end and the cylindrical of rotor core 6 of tangential rectangular channel Connection, each tangential rectangular channel inner edge midpoint is the most equal with the line at rotor core 6 center, in each radial direction rectangular channel End be provided with run through rotor core 6 thickness every magnetic air gap 8, adjacent does not connects every magnetic air gap 8, is pressed by the first rectangle permanent-magnet steel 7 The N pole of two panels the first rectangle permanent-magnet steel 7 that photograph is adjacent and N extremely relatively, S pole and S extremely relative to mode be sequentially arranged at radial direction square In shape groove, then the polarity that the second rectangle permanent-magnet steel 5 is formed by the first rectangle permanent-magnet steel 7 that the polarity of lateral surface is adjacent with two panels Identical mode is sequentially fixed in tangential rectangular channel by screw by pole shoe, and rotor core 6 is fitted on axle 2.

Claims (1)

1. permanent magnetism drives a motor with pawl pole electromagnetic hybrid excitation, drive end bearing bracket (9), rear end cap (1), casing (3), mixing encourage Magnet rotor, stator (4) form, it is characterised in that: rotor with hybrid excitation is turned by the Lundell electrical excitation with carbon brush slip-ring structure Son and combination type permanent-magnet rotor form；
Combination type permanent-magnet rotor by axle (2), the first rectangle permanent-magnet steel (7), rotor core (6), the second rectangle permanent-magnet steel (5), every Magnetic air gap (8) forms, and rotor core (6) is evenly equipped with even number and runs through the radial direction rectangular channel of rotor core (6) thickness, radially square Do not connect between the outer end of shape groove and the cylindrical of rotor core (6), be provided with in the middle of the outer end of adjacent two radial direction rectangular channels and pass through Wearing the tangential rectangular channel of rotor core (6) thickness, radially rectangular channel does not connects with tangential rectangular channel, the outer end of tangential rectangular channel with Connecting between the cylindrical of rotor core (6), each tangential rectangular channel inner edge midpoint is homogeneous with the line at rotor core (6) center Deng, be provided with in the inner of each radial direction rectangular channel run through rotor core (6) thickness every magnetic air gap (8), adjacent every magnetic air gap (8) do not connect, by the first rectangle permanent-magnet steel (7) according to the N pole of adjacent two panels the first rectangle permanent-magnet steel (7), S the most relative with N Pole and S extremely relative to mode be sequentially arranged at radially in rectangular channel, then the second rectangle permanent-magnet steel (5) press lateral surface polarity and The mode that polarity that the first rectangle permanent-magnet steel (7) that two panels is adjacent is formed is identical is sequentially fixed at tangential square by pole shoe by screw In shape groove, rotor core (6) is fitted on axle (2).
CN201610306606.7A 2016-05-11 2016-05-11 Permanent magnetism and pawl pole electromagnetic hybrid excitation driving motor Active CN105958775B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610306606.7A CN105958775B (en) 2016-05-11 2016-05-11 Permanent magnetism and pawl pole electromagnetic hybrid excitation driving motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610306606.7A CN105958775B (en) 2016-05-11 2016-05-11 Permanent magnetism and pawl pole electromagnetic hybrid excitation driving motor

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CN105958775A true CN105958775A (en) 2016-09-21
CN105958775B CN105958775B (en) 2018-07-06

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Cited By (6)

* 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
CN110098679A (en) * 2019-05-29 2019-08-06 河南全新机电设备有限公司 A kind of permanent magnet synchronous motor reconstruction structure
WO2020216012A1 (en) * 2019-04-23 2020-10-29 山东理工大学 Drive motor employing asymmetric-magnetic-pole permanent magnet and claw-pole electromagnet for use in electric vehicle
CN112821620A (en) * 2021-03-16 2021-05-18 山东理工大学 Combined magnetic pole permanent magnet driving motor
CN112821619A (en) * 2021-03-16 2021-05-18 山东理工大学 Combined permanent magnet and brushless electromagnetic hybrid excitation generator for automobile
CN112910200A (en) * 2021-03-16 2021-06-04 山东理工大学 Production method of permanent magnet rotor of combined permanent magnet and brushless electromagnetic hybrid excitation generator for automobile

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (9)

* 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
WO2020216012A1 (en) * 2019-04-23 2020-10-29 山东理工大学 Drive motor employing asymmetric-magnetic-pole permanent magnet and claw-pole electromagnet for use in electric vehicle
US11323014B2 (en) 2019-04-23 2022-05-03 Shandong University Of Technology Driving motor with asymmetric magnetic pole type of permanent magnet and claw pole electric excitation for electric automobile
CN110098679A (en) * 2019-05-29 2019-08-06 河南全新机电设备有限公司 A kind of permanent magnet synchronous motor reconstruction structure
CN110098679B (en) * 2019-05-29 2024-04-30 河南全新机电设备有限公司 Permanent magnet synchronous motor transformation structure
CN112821620A (en) * 2021-03-16 2021-05-18 山东理工大学 Combined magnetic pole permanent magnet driving motor
CN112821619A (en) * 2021-03-16 2021-05-18 山东理工大学 Combined permanent magnet and brushless electromagnetic hybrid excitation generator for automobile
CN112910200A (en) * 2021-03-16 2021-06-04 山东理工大学 Production method of permanent magnet rotor of combined permanent magnet and brushless electromagnetic hybrid excitation generator for automobile
CN112821619B (en) * 2021-03-16 2024-06-11 山东理工大学 Combined permanent magnet and brushless electromagnetic hybrid excitation generator for automobile

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Publication number Publication date
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