CN106230212B - A kind of single phase multi high frequency aluminium winding electric machine - Google Patents

A kind of single phase multi high frequency aluminium winding electric machine Download PDF

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Publication number
CN106230212B
CN106230212B CN201610700969.9A CN201610700969A CN106230212B CN 106230212 B CN106230212 B CN 106230212B CN 201610700969 A CN201610700969 A CN 201610700969A CN 106230212 B CN106230212 B CN 106230212B
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China
Prior art keywords
stator
motor
conducting bar
yoke
electric machine
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CN201610700969.9A
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CN106230212A (en
Inventor
张承宁
董玉刚
吴晓鹏
杨永喜
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Beijing Institute of Technology BIT
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Beijing Institute of Technology BIT
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K17/00Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02Asynchronous induction motors
    • H02K17/04Asynchronous induction motors for single phase current
    • 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
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/16Stator cores with slots for windings
    • H02K1/165Shape, form or location of the slots
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/02Windings characterised by the conductor material

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

The present invention relates to a kind of motors, more particularly to a kind of single phase multi high frequency aluminium winding electric machine applied in the electromechanical combined transmission of vehicle, it has abandoned the enameled wire winding construction in conventional motors stator, using single conducting bar as single-phase winding, motor end is reduced, the consumption of aluminium and core material is reduced, not only significantly reduces the weight of motor, power density is improved, also reduces manufacturing cost to a certain extent.

Description

A kind of single phase multi high frequency aluminium winding electric machine
Technical field
The present invention relates to a kind of motor more particularly to a kind of single phase multi high frequencies applied in the electromechanical combined transmission of vehicle Aluminium winding electric machine.
Background technology
For electric vehicle, since the limited automobile motor of overall space needs have higher power density, by electricity The constraint of electrical automobile inner space, automobile motor are designed as flat mostly.However, the power density opposite end minister of flat electric machine Spend very sensitive, power density can be greatly reduced in the increase of tip lengths.Conventional motors winding mostly uses three-phase windings and by more Circle coil forms, and axial length is caused to increase, and embedding technology is complicated, and the enameled wire not only needed is more, and consumption copper material is more, is manufactured into This height, and motor heavier-weight.Further, since copper resistance rate is low, kelvin effect at high frequencies is apparent, loss compared with Greatly.And in terms of electrical fault, when conventional motors are due to work, temperature is excessively high in coil, can often insulation damages be caused to cause.
Invention content
For the above-mentioned prior art the problem of, the present invention provide a kind of single phase multi high frequency aluminium winding electric machine, throw The enameled wire winding construction in conventional motors stator has been abandoned, motor end is reduced, has reduced the consumption of aluminium and core material, The weight for not only significantly reducing motor improves power density, also reduces manufacturing cost to a certain extent.
The single phase multi high frequency aluminium winding electric machine has following structure, including:Stator slot, stator tooth, stator yoke, forever Magnet, rotor yoke and conducting bar;The stator slot is straight trough, and the conducting bar is embedded in the stator slot, for as single-phase Winding;The stator tooth is staggered with the stator slot to be arranged in stator yoke;The permanent magnet is set to the rotor yoke On.
Preferably, the conducting bar is single conducting bar, and winds the stator slot using S types arrangement, and preferably aluminium is made For material.
Preferably, the quantity ratio of the stator slot, the stator tooth and the permanent magnet is 1:1:1.
Preferably, the thickness ratio of the facewidth of the stator tooth, the stator yoke and the rotor yoke is 2:1:1.Stator tooth End and root in a circumferential direction of same size.
Preferably, outer rotor inner stator or internal rotor outer stator structure can be used in the motor.
Preferably, a kind of vehicle is provided, which employs above-mentioned motors.
Preferably, a kind of wheel hub motor is provided, the above-mentioned electric machine structure of outer rotor inner stator form is used.
The present invention can realize following advantageous effect:The winding coefficient of motor is equal to 1, magnetic field utilization rate and stator copper factor It is higher.Tip lengths are substantially reduced, conducting wire dosage is saved, embedding technology is made to be simplified.Using quality when aluminium conducting bar compared with Copper conducting bar is light, to keep motor quality lighter, and effectively reduces high frequency kelvin effect, reduces high frequency winding loss;Due to Number of poles increases pole span and reduces, each pair of magnetic pole closed magnetic terminal, and stator yoke and rotor yoke thickness reduces two to only the facewidth/ One, motor radiating is conducive to while saving core material, effectively improves the power density of motor;In addition, the motor is being sent out The voltage waveform exported under electricity condition generates electricity close to square wave convenient for rectification, improves waveform utilization rate.The motor shape is further flat Flat, being more suitable for electric vehicle etc. has installation space the occasion more limited.
Description of the drawings
Fig. 1 is the single phase multi high frequency aluminium winding electric machine schematic diagram of the present invention
Fig. 2 is the single phase multi high frequency aluminium winding electric machine partial enlarged view of the present invention
Fig. 3 is that conducting bar is arranged to form single-phase winding schematic diagram using S types in the present invention
Specific implementation mode
In the following, the specific implementation mode of the present invention is described in detail in conjunction with attached drawing.As shown in Figure 1, 2, single-phase more Extremely high frequency aluminium winding electric machine includes:It stator slot (1), stator tooth (2), stator yoke (3), permanent magnet (4), rotor yoke (5) and leads Item (6);The stator slot (1) is straight trough, and the conducting bar (6) is embedded in the stator slot (1), for being used as single-phase winding; The stator tooth (2) is staggered with the stator slot (1) to be arranged in stator yoke (3);The permanent magnet (4) is set to described On rotor yoke (5).
In the preferred embodiment of the application, the conducting bar (6) is using the S-type cloth of single conducting bar as shown in Figure 3 Set the winding stator slot (1).It is assumed that the motor has 36 slots, conducting bar to be entered by the 1st end faces slot A, entered by the 1st end faces slot B 2nd end faces slot B, then enter the 3rd end faces slot A from the 2nd end faces slot A, so on circulate, finally drawn from the 36th end faces slot A, shape At S type windings.
In the preferred embodiment of the application, the material of the conducting bar (6) is aluminium.
In the preferred embodiment of the application, the stator slot (1), the stator tooth (2) and the permanent magnet (4) Quantity ratio be 1:1:1.
In the preferred embodiment of the application, the facewidth, the stator yoke (3) thickness and the institute of the stator tooth (2) The thickness ratio for stating rotor yoke (5) is 2:1:1.
The maximum number of poles of permanent magnet (4) is limited to the processing technology of stator silicon steel sheet and permanent magnet, and particular number regards power generation The characteristics of depending on the specification of machine, but must being usually 2 integral multiple, and cannot be below a certain specific number of poles, should ensure that its multipole.Forever The magnetic flux that a certain poles N of magnet (4) generate flows into the stator tooth (2) closed on, is divided into two-way in stator tooth (2) tooth top and separately flows into Stator yoke (3) passes through in two adjacent stator tooths, then passes through the S pole extremely adjacent with the N, finally passes through rotor yoke (5) Return to the poles N.Thus, it is supposed that the power generator air gap flux density is 0.8T, magnetic steel of stator works flux density as 1.4T, then permanent magnet (4) is thick The ratio between degree and stator tooth (2) facewidth 7:4;Stator tooth (2) facewidth and the ratio of stator yoke (3) and rotor yoke (5) are 2 simultaneously:1: 1;Therefore the ratio between thickness, stator tooth (2) facewidth, stator yoke (3) and rotor yoke thickness of permanent magnet (4) are 7:4:2:2.It is described fixed Pilot trench (1) is open tank configuration, and the cross sectional shape of single aluminium conducting bar (6) is similar to the stator slot (1) shape, adjoining dimensions, It is very easy in embedded groove.
In the preferred embodiment of the application, the motor is the default minor structure of outer rotor.
In the preferred embodiment of the application, the motor is internal rotor outer stator structure.
In the preferred embodiment of the application, a kind of vehicle is provided, uses above-mentioned single phase multi high frequency aluminium winding Motor.
In the preferred embodiment of the application, a kind of wheel hub motor is provided, uses outer rotor inner stator form Above-mentioned electric machine structure.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (9)

1. a kind of single phase multi high frequency aluminium winding electric machine, it is characterised in that:Including:Stator slot (1), stator tooth (2), stator yoke (3), permanent magnet (4), rotor yoke (5) and conducting bar (6);The stator slot (1) is straight trough, and the conducting bar (6) is embedded described In stator slot (1), for being used as single-phase winding;The stator tooth (2) is staggered with the stator slot (1) to be arranged in stator yoke (3) on;The permanent magnet (4) is set on the rotor yoke (5);The facewidth, the stator yoke (3) of the stator tooth (2) are thick The thickness ratio of degree and the rotor yoke (5) is 2:1:1.
2. motor as described in claim 1, it is characterised in that:The conducting bar (6) is single conducting bar.
3. motor as described in claim 1, it is characterised in that:The conducting bar (6) winds the stator slot using S types arrangement (1)。
4. motor as described in claim 1, it is characterised in that:The material of the conducting bar (6) is aluminium.
5. motor as described in claim 1, it is characterised in that:The stator slot (1), the stator tooth (2) and the permanent magnetism The quantity ratio of body (4) is 1:1:1.
6. motor as described in claim 1, it is characterised in that:The motor is the default minor structure of outer rotor.
7. motor as described in claim 1, it is characterised in that:The motor is internal rotor outer stator structure.
8. a kind of vehicle, it is characterised in that:Using motor as described in any one of the preceding claims.
9. a kind of wheel hub motor, which is characterized in that its structure is motor as claimed in claim 6.
CN201610700969.9A 2016-08-22 2016-08-22 A kind of single phase multi high frequency aluminium winding electric machine Active CN106230212B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610700969.9A CN106230212B (en) 2016-08-22 2016-08-22 A kind of single phase multi high frequency aluminium winding electric machine

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Application Number Priority Date Filing Date Title
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CN106230212B true CN106230212B (en) 2018-09-25

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207504726U (en) * 2017-07-21 2018-06-15 深圳市配天电机技术有限公司 Electric vehicle, wheel, switched reluctance machines and its current detection circuit
CN108777532B (en) * 2018-02-01 2020-05-05 哈尔滨理工大学 Direct current motor system with rotor adopting alternating excitation and excitation control method
JP7027187B2 (en) * 2018-02-05 2022-03-01 株式会社日立産機システム Abduction type permanent magnet rotary electric machine
CN108199507B (en) * 2018-03-28 2019-06-25 郑州轻工业学院 A kind of Modular motor stator structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270065A (en) * 1979-03-19 1981-05-26 Eltra Corporation Four pole wave wound direct current machine with multi-turn armature coils
CN102201710A (en) * 2011-06-11 2011-09-28 福建惠丰电机有限公司 Superhigh-efficiency brazed motor rotor
CN105375666A (en) * 2014-12-04 2016-03-02 深圳市高瓴科技有限公司 Novel super power motor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RO56652A2 (en) * 1972-04-28 1974-07-01
JP2014212638A (en) * 2013-04-19 2014-11-13 株式会社デンソー Stator of dynamo-electric machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270065A (en) * 1979-03-19 1981-05-26 Eltra Corporation Four pole wave wound direct current machine with multi-turn armature coils
CN102201710A (en) * 2011-06-11 2011-09-28 福建惠丰电机有限公司 Superhigh-efficiency brazed motor rotor
CN105375666A (en) * 2014-12-04 2016-03-02 深圳市高瓴科技有限公司 Novel super power motor

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