CN201194346Y - Tangential magnetic steel permanent magnet motor - Google Patents

Tangential magnetic steel permanent magnet motor Download PDF

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Publication number
CN201194346Y
CN201194346Y CNU200820057072XU CN200820057072U CN201194346Y CN 201194346 Y CN201194346 Y CN 201194346Y CN U200820057072X U CNU200820057072X U CN U200820057072XU CN 200820057072 U CN200820057072 U CN 200820057072U CN 201194346 Y CN201194346 Y CN 201194346Y
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CN
China
Prior art keywords
magnet
motor
permanent
rotor
tangential
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.)
Expired - Fee Related
Application number
CNU200820057072XU
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Chinese (zh)
Inventor
赵朝会
刘军
李萍
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.)
Shanghai Dianji University
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Shanghai Dianji University
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 Shanghai Dianji University filed Critical Shanghai Dianji University
Priority to CNU200820057072XU priority Critical patent/CN201194346Y/en
Application granted granted Critical
Publication of CN201194346Y publication Critical patent/CN201194346Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a simplified tangential-set magnet permanent magnet motor, which is composed of a stator and a permanent magnet rotor facing the stator, an air gap is between the stator and the permanent magnet, the permanent magnet rotor is composed of a rotating shaft in the rotor axle core and a permanent magnet evenly surrounding the rotating shaft. The utility model has the advantages of simple structure, simple assembly, high efficiency and large torque, can be widely used in industrial field and household appliance industry. With the development of the research of wind power generation and the other renewable energy, the motor will become an ideal model of permanent direct driven motor.

Description

A kind of tangential-set magnet permanent motor
Technical field
The utility model relates to a kind of ac synchronous motor, particularly relates to a kind of tangential-set magnet permanent motor.
Background technology
Existing cutting orientation structure permagnetic synchronous motor, in its permanent magnet rotor structure, permanent magnet is the parallel operation state, and every utmost point magnetic flux of motor is provided by two rare-earth permanent magnets, the magnetic potential of every rare-earth permanent magnet provides every pair of utmost point magnetic potential, so the gap density of motor can be improved.But the leakage field of rotating shaft side permanent magnet is relatively large, and the complex structure of motor p-m rotor, the assembling difficulty.Prior art has proposed a kind of tangential magnet-steel motor with auxiliary magnetic pole at this technical problem, the motor of this kind structure is because the existence of auxiliary magnetic pole, though can reduce the leakage field of rotating shaft side permanent magnet effectively, and can save non-magnetism bush, the electric machine structure complexity.
Therefore, solve the contradiction between the close and electric machine structure of motor gas-gap magnetic, design do not increase the electric machine structure complexity, assembling is simple, can improve the motor of air gap flux density simultaneously again, become those skilled in the art and want the problem that solves.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and can reduce the leakage field of rotating shaft side permanent magnet and the tangential permanent magnet motor of designs simplification.
For achieving the above object, the utility model adopts following technical scheme:
A kind of tangential-set magnet permanent motor comprises a stator and a p-m rotor, and this p-m rotor has an air gap therebetween in the face of stator, and described p-m rotor is by the rotating shaft that is positioned at rotor axis, and the equally distributed permanent magnet of twisted rotary shaft constitutes.
Described tangential-set magnet permanent machine shaft can be a permeability magnetic material, also can be non-magnet material.
The utility model electric machine structure is simplified, and assembling is simple, and efficient height, torque are big, can be widely used in industrial circle and household electric appliances.Along with deepening continuously of regenerative resource researchs such as wind power generation, this motor will become a desirable type of permanent magnet direct driving motor.
Description of drawings
Accompanying drawing 1 is the schematic diagram of existing tangential-set magnet permanent motor;
Accompanying drawing 2 is schematic diagrames of the utility model tangential-set magnet permanent motor;
Accompanying drawing 3 is schematic diagrames of the p-m rotor of existing tangential-set magnet permanent motor;
Accompanying drawing 4 is p-m rotor schematic diagrames of the utility model tangential-set magnet permanent motor;
Accompanying drawing 5 is magnetic line of force distribution schematic diagrams of existing tangential-set magnet permanent motor p-m rotor;
Accompanying drawing 6 is magnetic line of force distribution schematic diagrams of the utility model tangential-set magnet permanent motor p-m rotor;
Accompanying drawing 7 is another magnetic line of force distribution schematic diagrams of the utility model tangential-set magnet permanent motor p-m rotor;
Among the figure, 1,11, stator, 2,12, p-m rotor, 3,13, rotating shaft, 4,14, permanent magnet, 5,15, air gap, 6, magnetic shield, 20, leakage field.
Embodiment
Provide embodiment of the present utility model below in conjunction with accompanying drawing.
Referring to accompanying drawing 1.This figure shows the schematic diagram of existing tangential-set magnet permanent motor.As shown in the figure, the magneto of existing cutting orientation structure is by the magnetic shield 6 of stator 1, p-m rotor 2, rotating shaft 3, the permanent magnets 4 that are embedded in p-m rotor 2 centres unshakable in one's determination, minimizing rotating shaft side permanent magnet 4 leakage fields, and air gap 5 is formed.The complex structure of such motor p-m rotor, the assembling difficulty.
Be illustrated in figure 2 as the schematic diagram of a kind of tangential-set magnet permanent motor of the utility model.A kind of tangential-set magnet permanent motor of the utility model comprises stator 11 and p-m rotor 12, this p-m rotor 12 is in the face of stator 11, have an air gap 15 therebetween, described p-m rotor 12 is by the rotating shaft 13 that is positioned at rotor 12 axle center, and twisted rotary shaft 13 equally distributed permanent magnets 14 constitute.The structure of the stator 11 of the tangential-set magnet permanent motor that the utility model is simplified and the stator 1 of existing tangential-set magnet permanent motor is identical, and stator core is formed by stacking by silicon steel sheet.P-m rotor then is on the basis of existing tangential-set magnet permanent motor p-m rotor, utilizes the reach capacity permanent magnet of condition of magnet steel width to replace the permanent magnet that uses in the existing tangential-set magnet permanent motor, and the transformation of the way forms.
Because this improvement has well reduced the leakage field of existing tangential-set magnet permanent motor shaft side permanent magnet, therefore, during fabrication, not only can save the magnetic shield that is used for reducing rotating shaft side p-m rotor leakage field in the existing tangential-set magnet permanent motor, and can omit the auxiliary magnetic pole in the existing tangential-set magnet permanent motor.
The tangential-set magnet permanent machine shaft that the utility model is simplified can be a permeability magnetic material, also can be non-magnet material.Can be 3 phase motors, also can be polyphase machine; Generator can be made, also motor can be made; DC generator can be made, also AC machine can be made.
Below further by illustrating advantage of the present utility model.Accompanying drawing 3 is the structural representation of a kind of p-m rotor of existing tangential-set magnet permanent motor, the permanent magnet 4 that p-m rotor 2 is distributed by rotating shaft 3, twisted rotary shaft 3, and the magnetic shield 6 that is arranged between rotating shaft 3 and the permanent magnet 4 constitutes, and this magnetic shield 6 is used to reduce the leakage field p-m rotor of rotating shaft side permanent magnet.Accompanying drawing 4 is the structural representation of a kind of p-m rotor of the utility model tangential-set magnet permanent motor, and p-m rotor 12 is by rotating shaft 13, and the permanent magnet 14 that twisted rotary shaft 13 distributes constitutes.As seen from the figure, p-m rotor of the present utility model can omit auxiliary magnetic pole and magnetic shield with respect to existing tangential-set magnet permanent motor, and electric machine structure is simplified.
Further, see also Fig. 5, Fig. 6 and Fig. 7, these 3 figure have illustrated advantage of the present utility model from the distribution aspect of the magnetic line of force.Fig. 5 is the magnetic line of force distribution map of existing tangential-set magnet permanent motor p-m rotor.Leakage field 20 is bigger.Fig. 6 is the magnetic line of force distribution map of the p-m rotor of the utility model when rotating shaft is non-magnet material, and Fig. 7 is the magnetic line of force distribution map of the p-m rotor of the utility model when rotating shaft is permeability magnetic material, and for Fig. 5, leakage field 20 is less among Fig. 6 and Fig. 7.Therefore, the utility model has not only effectively improved air gap flux density, and by the same polarity of the utilizing adjacent two permanent magnets principle of repelling each other, has also obviously reduced the leakage field of rotating shaft side permanent magnet.
The advantages such as the utlity model has designs simplification, assembling is simple, and efficient height, torque are big can be by extensively General for industrial circle and household electric appliances. Along with deepening continuously of the regenerative resource researchs such as wind-power electricity generation, This motor will become a desirable type of permanent magnet direct driving motor.

Claims (3)

1. tangential-set magnet permanent motor, comprise a stator and a p-m rotor, this p-m rotor has an air gap therebetween in the face of stator, it is characterized in that: described p-m rotor is by the rotating shaft that is positioned at rotor axis, and the equally distributed permanent magnet of twisted rotary shaft constitutes.
2. tangential-set magnet permanent motor according to claim 1 and 2 is characterized in that: described tangential-set magnet permanent machine shaft is a permeability magnetic material.
3. tangential-set magnet permanent motor according to claim 1 and 2 is characterized in that: described tangential-set magnet permanent machine shaft is a non-magnet material.
CNU200820057072XU 2008-04-09 2008-04-09 Tangential magnetic steel permanent magnet motor Expired - Fee Related CN201194346Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU200820057072XU CN201194346Y (en) 2008-04-09 2008-04-09 Tangential magnetic steel permanent magnet motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU200820057072XU CN201194346Y (en) 2008-04-09 2008-04-09 Tangential magnetic steel permanent magnet motor

Publications (1)

Publication Number Publication Date
CN201194346Y true CN201194346Y (en) 2009-02-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU200820057072XU Expired - Fee Related CN201194346Y (en) 2008-04-09 2008-04-09 Tangential magnetic steel permanent magnet motor

Country Status (1)

Country Link
CN (1) CN201194346Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102255460A (en) * 2011-06-20 2011-11-23 上海电机学院 Permanent magnet synchronous machine (PMSM) possessing assembled magnetic effect
CN106787323A (en) * 2017-02-14 2017-05-31 佛山智能装备技术研究院 A kind of rotor of alternating-current permanent-magnet servo motor
WO2020133874A1 (en) * 2018-12-25 2020-07-02 南京埃斯顿自动化股份有限公司 Servo motor having interior spoke-type permanent magnet rotor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102255460A (en) * 2011-06-20 2011-11-23 上海电机学院 Permanent magnet synchronous machine (PMSM) possessing assembled magnetic effect
CN106787323A (en) * 2017-02-14 2017-05-31 佛山智能装备技术研究院 A kind of rotor of alternating-current permanent-magnet servo motor
WO2020133874A1 (en) * 2018-12-25 2020-07-02 南京埃斯顿自动化股份有限公司 Servo motor having interior spoke-type permanent magnet rotor

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Shanghai Yuansheng Machinery Electrical Manufacturing Co., Ltd.

Assignor: Shanghai Dianji University

Contract fulfillment period: 2009.5.8 to 2014.5.7

Contract record no.: 2009310000106

Denomination of utility model: Tangential magnetic steel permanent magnet motor

Granted publication date: 20090211

License type: Exclusive license

Record date: 20090701

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.5.8 TO 2014.5.7; CHANGE OF CONTRACT

Name of requester: SHANGHAI YUANSHENG MACHINERY ELECTRIC MANUFACTURIN

Effective date: 20090701

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090211

Termination date: 20150409

EXPY Termination of patent right or utility model