CN107528437A - A kind of composite electromagnetic motor used for electric vehicle - Google Patents

A kind of composite electromagnetic motor used for electric vehicle Download PDF

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Publication number
CN107528437A
CN107528437A CN201711017813.1A CN201711017813A CN107528437A CN 107528437 A CN107528437 A CN 107528437A CN 201711017813 A CN201711017813 A CN 201711017813A CN 107528437 A CN107528437 A CN 107528437A
Authority
CN
China
Prior art keywords
motor
stator
rotor
core
stator winding
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
CN201711017813.1A
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Chinese (zh)
Inventor
李世征
张学义
胡文静
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 CN201711017813.1A priority Critical patent/CN107528437A/en
Publication of CN107528437A publication Critical patent/CN107528437A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K16/00Machines with more than one rotor or stator
    • 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
    • H02K1/2713Inner rotor where the magnetisation axis of the magnets is axial
    • 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
    • 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 provides a kind of driving motor for electric automobile, more particularly to a kind of composite electromagnetic motor used for electric vehicle, is made up of rotor, stator, drive end bearing bracket, rear end cap.Motor rotor is formed by lamination armature, every magnetic bushing, solid rotor, and motor is equipped with two sets of electromagnetic systems, and two sets of electromagnetic systems are separated every magnetic bushing, do not interfere with each other.Composite electromagnetic motor takes full advantage of motor material and motor internal space, improves power of motor density;Two sets of electromagnetic systems are in different working condition in motor different capacity demand, improve running reliability of motor and power of motor output area.

Description

A kind of composite electromagnetic motor used for electric vehicle
Technical field
The present invention relates to a kind of driving motor for electric automobile, is driven more particularly to a kind of composite electromagnetic used for electric vehicle Motor.
Background technology
Electric automobile refers to that using vehicle power as power it is every to meet road traffic, security legislation with power wheel It is required that vehicle.As modern society increasingly strengthens the idea of environmental protection and energetically support of the country to new-energy automobile, Electric automobile has been to be concerned by more and more people, but the continual mileage of electric automobile generally existing is short at present and electrical fault etc. Problem seriously constrains the development of electric automobile, so developing the motor of a kind of high efficiency, high power density, high reliability As industry focus.The present invention improves a kind of stock utilization height, the wide automobile using motor of output power range.
In existing motor technology, patent of invention " biradial permanent magnetism composite magnetic circuit generator " is authorized(The patent No.: CN201210132235.7), there is provided a kind of embedded radially generator with tangential permanent magnet body of rotor, pass through polylith set of permanent magnets Close and improve motor-field intensity and then raising power density;" combination type permanent-magnet drives the patent of invention of bulletin with electromagnetic hybrid excitation Dynamic motor "(Application number:CN201610311832.4), there is provided a kind of electrical excitation and p-m rotor coaxially share one side by side and determined The composite excitation motor of sub- winding, the adjustability of electrical excitation rotor improve the maximum power output of motor;Utility model " driving motor for electric automobile "(The patent No.:CN201320323880.7), there is provided a kind of multiple p-m rotors and more sets are fixed Sub- winding coaxial motor arranged side by side, plurality of electromagnetic system effectively raise the reliability of system.Invention is to pass through above More permanent magnets or multiple electromagnetic system parallel connections are embedded to improve motor performance, but these innovations, improved method have material Expect low utilization rate, increase motor fixing body product, reduce the shortcomings that power density.
The content of the invention
The invention provides a kind of composite electromagnetic system drive motor used for electric vehicle, and first, motor is equipped with two sets Electromagnetic system, two sets of electromagnetic systems are separated every magnetic bushing, not interfere with each other, and take full advantage of motor material and motor internal is empty Between, improve power of motor density;Secondly, double winding is in different working condition under motor different capacity demand, improves Running reliability of motor and power of motor output area.For prior art, technology disclosed by the invention is in motor There is necessarily creative and innovative in drive device and control technology.Its technology contents is:
A kind of composite electromagnetic motor used for electric vehicle, is made up of rotor, stator, drive end bearing bracket, rear end cap, it is characterised in that: Motor rotor forms by lamination armature, every magnetic bushing, solid rotor, and motor is equipped with two sets of stator winding;
Motor rotor by laminated core of rotor, the first rectangle permanent-magnet steel, every magnetic bushing, solid rotor iron core and the second rectangle Permanent-magnet steel forms, and laminated core of rotor opens reeded annular silicon steel sheet stack by inner circle and is pressed into cylindrical shape, and 8 piece of first rectangle is forever Magnet steel is along the circumferential direction uniformly embedded on laminated core of rotor, and solid rotor iron core is cylindrical to be provided with groove, solid rotor iron core Circumferential direction inside direction is uniformly firm embedded with 8 piece of second rectangle permanent magnetism, and the first rectangle permanent magnetism has been just cutting orientation magnetizing, the second rectangle permanent magnetism Steel is axial charging, laminated core of rotor and the first rectangle permanent-magnet steel composition lamination armature, solid rotor iron core and the second rectangle Permanent-magnet steel forms solid rotor, is equipped between lamination armature and solid rotor every magnetic bushing;
Motor stator is made up of the first stator core, the first stator winding, the second stator core and the second stator winding, the One stator core is fixed by screws between forward and backward end cap, and the first stator winding is wound on the first stator core, and first is fixed Sub- iron core, the first stator winding and lamination armature form the first electromagnetic system, and the second stator core is fixed on front and back ends and covered, On second the second stator core of stator winding coiling, the second stator core, the second stator winding and solid rotor form the second axle To electromagnetic system;
The control process of the motor is as follows:
When motor demand power is less than default value, the conducting of the first stator winding of motor, the second stator around Group open circuit, the work of the first electromagnetic system;
When motor demand power is more than or equal to default value, the stator winding of motor first and the second stator around Group all turns on, and the first electromagnetic system and the second axial magnetic system all work;
When any stator winding failure, another stator winding in the first stator winding and the second stator winding of motor Turn on immediately, maintain motor to run well.
Operation principle:Electric machine controller determines that double winding cut-offs state according to power demand of motors, when motor leads to Enter by three-phase inverter after the three-phase alternating current of pulsewidth modulation, motor stator produce a space rotating magnetic field, it with Rotor permanent magnet steel produces magnetic field interaction, rotor is produced the rotating torques consistent with stator winding rotating excitation field direction, makes Motor rotor rotates, and then drives electric automobile operation.
Compared with prior art, the invention provides a kind of motor of composite electromagnetic system, motor by the present invention Equipped with two sets of electromagnetic systems, and two sets of electromagnetic systems are separated every magnetic bushing, are not interfere with each other, are taken full advantage of motor material and electricity Machine inner space, improve power of motor density;Double winding is in different working condition under motor different capacity demand, carries High running reliability of motor and power of motor output area.The country not yet retrieves the technology similar to the present invention, phase at present For prior art, technology disclosed by the invention have on motor driver and control technology certain creativeness and It is innovative.
Brief description of the drawings
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;
Fig. 3 is the motor three-dimensional explosive view of embodiment illustrated in fig. 1;
In figure:1st, axle 2, rear end cap 3, laminated core of rotor 4, the first rectangle permanent-magnet steel 5, every magnetic bushing 6, solid Rotor core 7, the second rectangle permanent-magnet steel 8, the first stator core 9, the first stator winding 10, the second stator winding 11st, the second stator core 12, drive end bearing bracket
Embodiment
The invention will be further described below in conjunction with the accompanying drawings;
A kind of composite electromagnetic motor used for electric vehicle, is made up of, its feature exists rotor, stator, drive end bearing bracket 12, rear end cap 2 In:Motor rotor forms by lamination armature, every magnetic bushing 5, solid rotor, and motor is equipped with two sets of stator winding;
Motor rotor by laminated core of rotor 3, the first rectangle permanent-magnet steel 4, every magnetic bushing 5, solid rotor iron core 6 and second Rectangle permanent-magnet steel 7 forms, and laminated core of rotor 3 opens reeded annular silicon steel sheet stack by inner circle and is pressed into cylindrical shape, 8 piece first Rectangle permanent-magnet steel 4 is along the circumferential direction uniformly embedded on laminated core of rotor 3, and solid rotor iron core 6 is cylindrical to be provided with groove, solid The circumferential direction inside direction of rotor core 6 is uniformly embedded with 8 piece of second rectangle permanent magnetism firm 7, and the first rectangle permanent magnetism firm 4 is cutting orientation magnetizing, Second rectangle permanent-magnet steel is axial charging, and the rectangle permanent-magnet steel 4 of laminated core of rotor 3 and first forms lamination armature, solid rotor The rectangle permanent-magnet steel 7 of iron core 6 and second forms solid rotor, is equipped between lamination armature and solid rotor every magnetic bushing;
Motor stator is by the first stator core 8, the first stator winding 9, the second stator core(11)With the second stator winding 10 compositions, the first stator core 8 are fixed by screws between forward and backward end cap, and the first stator winding 9 is wound on the first stator iron On core 8, the first stator core 8, the first stator winding 9 and lamination armature form the first electromagnetic system, and the second stator core 11 is solid Front and back ends are scheduled on to cover, on the second stator core of coiling 11 of the second stator winding 10, the second stator core 11, the second stator around Group 10 and solid rotor form the second axial magnetic system;
The control process of the motor is as follows:
When motor demand power is less than default value, the first stator winding 9 of motor turns on, the second stator around The open circuit of group 10, the work of the first electromagnetic system;
When motor demand power is more than or equal to default value, motor the first stator winding 9 and the second stator Winding 10 all turns on, and the first electromagnetic system and the second axial magnetic system all work;
When any stator winding failure, another stator in the first stator winding 9 and the second stator winding 10 of motor Winding turns on immediately, maintains motor to run well.

Claims (1)

  1. A kind of 1. composite electromagnetic motor used for electric vehicle, by rotor, stator, drive end bearing bracket(12), rear end cap(2)Composition, its It is characterised by:Motor rotor by lamination armature, every magnetic bushing(5), solid rotor composition, motor is equipped with two sets of stators Winding;
    Motor rotor is by laminated core of rotor(3), the first rectangle permanent-magnet steel(4), every magnetic bushing(5), solid rotor iron core (6)With the second rectangle permanent-magnet steel(7)Composition, laminated core of rotor(3)Reeded annular silicon steel sheet stack is opened by inner circle to be pressed into Cylindrical shape, 8 piece of first rectangle permanent-magnet steel(4)Along the circumferential direction uniformly it is embedded in laminated core of rotor(3)On, solid rotor iron core (6)It is cylindrical to be provided with groove, solid rotor iron core(6)Circumferential direction inside direction is uniformly firm embedded with 8 piece of second rectangle permanent magnetism(7), the One rectangle permanent magnetism is firm(4)For cutting orientation magnetizing, the second rectangle permanent-magnet steel is axial charging, laminated core of rotor(3)With the first rectangle Permanent-magnet steel(4)Form lamination armature, solid rotor iron core(6)With the second rectangle permanent-magnet steel(7)Form solid rotor, lamination armature It is equipped between solid rotor every magnetic bushing;
    Motor stator is by the first stator core(8), the first stator winding(9), the second stator core(11)With the second stator Winding(10)Composition, the first stator core(8)It is fixed by screws between forward and backward end cap, the first stator winding(9)It is wound on First stator core(8)On, the first stator core(8), the first stator winding(9)The first electromagnetic system is formed with lamination armature, Second stator core(11)It is fixed on front and back ends to cover, the second stator winding(10)The stator core of coiling second(11)On, second Stator core(11), the second stator winding(10)The second axial magnetic system is formed with solid rotor;
    The control process of the motor is as follows:
    When motor demand power is less than default value, the first stator winding of motor(9)Conducting, the second stator Winding(10)Open circuit, the work of the first electromagnetic system;
    When motor demand power is more than or equal to default value, the stator winding of motor first(9)It is fixed with second Sub- winding(10)All turn on, the first electromagnetic system and the second axial magnetic system all work;
    When the first stator winding of motor(9)With the second stator winding(10)In any stator winding break down, it is another Stator winding turns on immediately, maintains motor to run well.
CN201711017813.1A 2017-10-27 2017-10-27 A kind of composite electromagnetic motor used for electric vehicle Pending CN107528437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711017813.1A CN107528437A (en) 2017-10-27 2017-10-27 A kind of composite electromagnetic motor used for electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711017813.1A CN107528437A (en) 2017-10-27 2017-10-27 A kind of composite electromagnetic motor used for electric vehicle

Publications (1)

Publication Number Publication Date
CN107528437A true CN107528437A (en) 2017-12-29

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CN201711017813.1A Pending CN107528437A (en) 2017-10-27 2017-10-27 A kind of composite electromagnetic motor used for electric vehicle

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109149815A (en) * 2018-09-14 2019-01-04 北京交通大学 Solid and lamination mixed type permanent magnet rotor structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090001831A1 (en) * 2007-06-26 2009-01-01 Cho Chahee P Axial Field Electric Motor and Method
CN203708044U (en) * 2013-12-06 2014-07-09 李渊 Novel stator magneto type magnetic flux switching motor
CN204517560U (en) * 2015-04-25 2015-07-29 兰州交通大学 A kind of electric rotating machine of combining structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090001831A1 (en) * 2007-06-26 2009-01-01 Cho Chahee P Axial Field Electric Motor and Method
CN203708044U (en) * 2013-12-06 2014-07-09 李渊 Novel stator magneto type magnetic flux switching motor
CN204517560U (en) * 2015-04-25 2015-07-29 兰州交通大学 A kind of electric rotating machine of combining structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109149815A (en) * 2018-09-14 2019-01-04 北京交通大学 Solid and lamination mixed type permanent magnet rotor structure

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Application publication date: 20171229