CN101552526A - A magnetic field enhancement type permanent magnet switch magnetic linkage motor - Google Patents

A magnetic field enhancement type permanent magnet switch magnetic linkage motor Download PDF

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Publication number
CN101552526A
CN101552526A CNA2009100987864A CN200910098786A CN101552526A CN 101552526 A CN101552526 A CN 101552526A CN A2009100987864 A CNA2009100987864 A CN A2009100987864A CN 200910098786 A CN200910098786 A CN 200910098786A CN 101552526 A CN101552526 A CN 101552526A
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CN
China
Prior art keywords
permanent magnet
magnetic
permanent
linkage motor
flux linkage
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Pending
Application number
CNA2009100987864A
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Chinese (zh)
Inventor
沈建新
王灿飞
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Zhejiang University ZJU
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Zhejiang University ZJU
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Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CNA2009100987864A priority Critical patent/CN101552526A/en
Publication of CN101552526A publication Critical patent/CN101552526A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a magnetic field enhancement type permanent magnet switch magnetic linkage motor, including rotors, stators, three-phase armature windings and a case, the rotor is composed of alveolar type core lamination, the stator fixed in the case includes 'U'-shaped core and a first permanent magnet connected in sequence, the first permanent magnet charges magnetism tangentially along the circumference, N pole and S pole are arranged alternately, the armature teeth are composed of the first permanent magnet and the 'U'-shaped core edge adhered to the first permanent magnet, the three phase armature winding is a concentrated winding, winding on the armature teeth, the case is of magnetic conduction material, a second permanent magnet is provided between the case and the stator, the second permanent magnet charges magnetism along the radius direction, N pole and S pole are arranged alternately, the first permanent magnet and the second permanent magnet contacted to the 'U'-shaped core has identical polarity at the contact face. The invention has simple structure, and has higher power density output than the traditional permanent magnet switch magnetic linkage motor, and can avoid the leakage of case outer edge, improves the motor anti-electromagnetic interference and electromagnetic compatibility, and improves utilization of permanent magnets.

Description

Magnetic-field-enhanced permanent-magnetic switching flux linkage motor
Technical field
The present invention relates to permanent-magnetic-switch flux linkage motor.
Background technology
Motor is the main driver part in the modern industry system, and the motor of excellent performance is most important to whole drive system.In recent years, development along with power electronic technology, permanent magnetic material and Control Technique of Microcomputer, permanent-magnet brushless DC electric machine is developed rapidly, permanent-magnet brushless DC electric machine has efficiently, the characteristics of high power density, along with the appearance of high performance permanent magnetic materials, improved the power density and the performance of permanent-magnet brushless DC electric machine greatly.
Switched reluctance machines is because characteristics such as simple in structure, good reliability obtain application more and more widely.In the middle of the stator tooth of switched reluctance machines, place the permanent-magnetic-switch flux linkage motor that permanent magnet obtains, combine the characteristics of switched reluctance machines and magneto, characteristics such as existing switched reluctance machines property simple and reliable for structure is good have characteristics such as magneto power density height simultaneously concurrently.The tradition permanent-magnetic-switch flux linkage motor comprises rotor, stator, threephase armature winding and casing, rotor is made of the Alveolus type core lamination, and the stator that is fixed in the casing comprises unshakable in one's determination and first permanent magnet of " U " shape that is arranged in order, first permanent magnet is along the circumference cutting orientation magnetizing, the N utmost point, the S utmost point are alternately arranged, and armature tooth is made of first permanent magnet and " U " shape that is close to first permanent magnet both sides limit unshakable in one's determination, and the threephase armature winding is for concentrating winding, on armature tooth, casing must adopt non-magnet_conductible material.In permanent-magnetic-switch flux linkage motor, rotor only is made of core lamination, and is simple and reliable for structure; Permanent magnet and armature winding all place on the stator, are highly susceptible to the heat radiation cooling.But there is more serious longitudinal end leakage field in traditional permanent-magnetic-switch flux linkage motor.Leakage field causes the permanent magnet utilance not high on the one hand, has also caused electromagnetic interference and electromagnetic compatibility problem on the other hand, has also limited motor case simultaneously and must adopt non-magnet_conductible material.
Summary of the invention
The objective of the invention is to propose a kind of magnetic-field-enhanced permanent-magnetic switching flux linkage motor,, improve the utilance and the electric efficiency of permanent magnet to improve electromagnetic interference and Electromagnetic Compatibility for overcoming the brow leakage problem of traditional permanent-magnetic-switch flux linkage motor.
Magnetic-field-enhanced permanent-magnetic switching flux linkage motor of the present invention, comprise rotor, stator, threephase armature winding and casing, rotor is made of the Alveolus type core lamination, the stator that is fixed in the casing comprises unshakable in one's determination and first permanent magnet of " U " shape that is arranged in order, first permanent magnet is along the circumference cutting orientation magnetizing, the N utmost point, the S utmost point is alternately arranged, armature tooth is made of first permanent magnet and " U " shape that is close to first permanent magnet both sides limit unshakable in one's determination, the threephase armature winding on armature tooth, is characterized in that casing is a permeability magnetic material for concentrating winding, between casing and stator, be equipped with second permanent magnet, second permanent magnet magnetizes along radial direction, the N utmost point, the S utmost point is alternately arranged, and is identical with the polarity of second permanent magnet on contact-making surface with first permanent magnet of " U " shape contact unshakable in one's determination.
Above-mentioned rotor and " U " shape iron core can be formed by silicon steel plate packing.Said casing is rolled into by steel plate or is formed by silicon steel plate packing.
First permanent magnet among the present invention is neodymium iron boron, SmCo or the ferrite of parallel magnetization.Second permanent magnet is neodymium iron boron, SmCo or the ferrite of parallel magnetization or radial magnetizing.
The opening of " U " shape iron core among the present invention can be standard-sized sheet mouth or half opening.
Magnetic-field-enhanced permanent-magnetic switching flux linkage motor of the present invention can be an electric rotating machine, also can be linear electric motors.
Beneficial effect of the present invention is:
Magnetic-field-enhanced permanent-magnetic switching flux linkage motor of the present invention is simple in structure, adopts second permanent magnet to strengthen permanent magnetic field, can effectively increase the variable quantity of the permanent magnetism magnetic linkage of armature winding linkage, increases back-emf, thereby obtains higher power density output.Because casing adopts permeability magnetic material, therefore can avoid the not outer leakage field of magnetic conduction casing existence fully, improve anti-electromagnetic interference of motor and Electromagnetic Compatibility, improve the permanent magnet utilance.
Description of drawings
Fig. 1 is a kind of structural representation of magnetic-field-enhanced permanent-magnetic switching flux linkage motor, and the direction of arrow is the permanent magnet magnetizing direction among the figure;
Fig. 2 is the structural representation of another kind of magnetic-field-enhanced permanent-magnetic switching flux linkage motor, and the direction of arrow is the permanent magnet magnetizing direction among the figure.
Embodiment
Shown in Figure 1 is rotary magnetic field enhanced permanent-magnetic switching flux linkage motor, comprise rotor 1, stator 2, threephase armature winding 3 and casing 4, rotor is made of the Alveolus type core lamination, the stator that is fixed in the casing comprises " U " shape that is arranged in order 2.1 and first permanent magnet 2.2 unshakable in one's determination, first permanent magnet is along the circumference cutting orientation magnetizing, the N utmost point, the S utmost point is alternately arranged, armature tooth is made of first permanent magnet 2.2 and " U " shape that is close to first permanent magnet both sides limit unshakable in one's determination, in the legend, rotor has 10 teeth, and stator has 12 armature tooths, and threephase armature winding 3 is for concentrating winding, on armature tooth, between casing and stator, be equipped with second permanent magnet, 2.3, the second permanent magnets and magnetize the N utmost point along radial direction, the S utmost point is alternately arranged, identical with the polarity of second permanent magnet on contact-making surface with first permanent magnet of " U " shape contact unshakable in one's determination, casing 4 is a permeability magnetic material.
Shown in Figure 2 is the orthoscopic magnetic-field-enhanced permanent-magnetic switching flux linkage motor, and in the illustrated example, mover 2 (being equivalent to the stator 2 in the electric rotary machine) is 12 utmost points, is 10 utmost points at mover length internal stator 1 (being equivalent to the rotor 1 in the electric rotary machine).Mover has 12 armature tooths that are wound with the threephase armature winding, permanent magnet of each armature tooth therebetween, and the adjacent permanent magnet N utmost point, the S utmost point are alternately arranged, totally 12 permanent magnets; A permanent magnet is placed, totally 12 again in each " U " shape outer unshakable in one's determination.First permanent magnet of each " U " shape both sides unshakable in one's determination and second permanent magnet of outer are identical with the polarity of this " U " shape contact-making surface unshakable in one's determination.
Shown in Figure 2 is the orthoscopic magnetic-field-enhanced permanent-magnetic switching flux linkage motor, and in the illustrated example, mover 2 (being equivalent to the stator 2 in the electric rotary machine) is 12 utmost points, is 10 utmost points at mover length internal stator 1 (being equivalent to the rotor 1 in the electric rotary machine).Mover comprises " U " shape that is arranged in order 2.1 and first permanent magnet 2.2 unshakable in one's determination, the first permanent magnet N utmost point, the S utmost point are alternately arranged, armature tooth is made of first permanent magnet 2.2 and " U " shape that is close to first permanent magnet both sides limit unshakable in one's determination, threephase armature winding 3 is for concentrating winding, on armature tooth, between casing 4 and mover, be equipped with second permanent magnet 2.3, the second permanent magnet N utmost point, the S utmost point are alternately arranged, and be identical with the polarity of second permanent magnet on contact-making surface with first permanent magnet of " U " shape contact unshakable in one's determination.

Claims (7)

1. magnetic-field-enhanced permanent-magnetic switching flux linkage motor, comprise rotor (1), stator (2), threephase armature winding (3) and casing (4), rotor is made of the Alveolus type core lamination, the stator that is fixed in the casing comprises " U " shape iron core (2.1) and first permanent magnet (2.2) that is arranged in order, first permanent magnet is along the circumference cutting orientation magnetizing, the N utmost point, the S utmost point is alternately arranged, armature tooth is made of first permanent magnet (2.2) and " U " shape limit unshakable in one's determination of being close to the first permanent magnet both sides, threephase armature winding (3) on armature tooth, is characterized in that casing (4) is a permeability magnetic material for concentrating winding, between casing and stator, be equipped with second permanent magnet (2.3), second permanent magnet magnetizes along radial direction, the N utmost point, the S utmost point is alternately arranged, and is identical with the polarity of second permanent magnet on contact-making surface with first permanent magnet of " U " shape contact unshakable in one's determination.
2. magnetic-field-enhanced permanent-magnetic switching flux linkage motor according to claim 1 is characterized in that rotor (1) and " U " shape iron core (2.1) are formed by silicon steel plate packing.
3. magnetic-field-enhanced permanent-magnetic switching flux linkage motor according to claim 1 is characterized in that neodymium iron boron, SmCo or the ferrite of said first permanent magnet (2.2) for magnetizing.
4. magnetic-field-enhanced permanent-magnetic switching flux linkage motor according to claim 1 is characterized in that neodymium iron boron, SmCo or the ferrite of said second permanent magnet (2.3) for magnetizing.
5. magnetic-field-enhanced permanent-magnetic switching flux linkage motor according to claim 1 is characterized in that said " U " opening unshakable in one's determination is standard-sized sheet mouth or half opening.
6. magnetic-field-enhanced permanent-magnetic switching flux linkage motor according to claim 1 is characterized in that said casing (4) is rolled into by steel plate or is formed by silicon steel plate packing.
7. magnetic-field-enhanced permanent-magnetic switching flux linkage motor according to claim 1 is characterized in that this motor is electric rotating machine or linear electric motors.
CNA2009100987864A 2009-05-14 2009-05-14 A magnetic field enhancement type permanent magnet switch magnetic linkage motor Pending CN101552526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2009100987864A CN101552526A (en) 2009-05-14 2009-05-14 A magnetic field enhancement type permanent magnet switch magnetic linkage motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2009100987864A CN101552526A (en) 2009-05-14 2009-05-14 A magnetic field enhancement type permanent magnet switch magnetic linkage motor

Publications (1)

Publication Number Publication Date
CN101552526A true CN101552526A (en) 2009-10-07

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CN (1) CN101552526A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101944782A (en) * 2010-08-17 2011-01-12 浙江大学 Modularized combination type stator structure of motor and application thereof
CN101951041A (en) * 2010-08-17 2011-01-19 浙江大学 Modularized combined motor stator structure and application thereof
GB2485217A (en) * 2010-11-05 2012-05-09 Imra Europe Sas Flux-switching permanent magnet electric motor
CN102723836A (en) * 2011-03-31 2012-10-10 周智庆 Compound short magnetic circuit switch reluctance motor and rotor structure thereof
CN103890546A (en) * 2011-10-24 2014-06-25 泰科电子连接印度私有有限公司 Magnetic flux enhancer system for reluctance type sensors

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101944782A (en) * 2010-08-17 2011-01-12 浙江大学 Modularized combination type stator structure of motor and application thereof
CN101951041A (en) * 2010-08-17 2011-01-19 浙江大学 Modularized combined motor stator structure and application thereof
GB2485217A (en) * 2010-11-05 2012-05-09 Imra Europe Sas Flux-switching permanent magnet electric motor
GB2485217B (en) * 2010-11-05 2013-03-20 Imra Europe Sas Electrical machine
CN102723836A (en) * 2011-03-31 2012-10-10 周智庆 Compound short magnetic circuit switch reluctance motor and rotor structure thereof
CN103890546A (en) * 2011-10-24 2014-06-25 泰科电子连接印度私有有限公司 Magnetic flux enhancer system for reluctance type sensors
CN103890546B (en) * 2011-10-24 2016-08-24 泰科电子连接印度私有有限公司 Magnetic flux enhancer system for reluctive transducer

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Open date: 20091007