CN106451855A - Consequent-pole permanent magnet motor - Google Patents

Consequent-pole permanent magnet motor Download PDF

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Publication number
CN106451855A
CN106451855A CN201611011286.9A CN201611011286A CN106451855A CN 106451855 A CN106451855 A CN 106451855A CN 201611011286 A CN201611011286 A CN 201611011286A CN 106451855 A CN106451855 A CN 106451855A
Authority
CN
China
Prior art keywords
permanent magnet
pole
magnet motor
consequent
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.)
Pending
Application number
CN201611011286.9A
Other languages
Chinese (zh)
Inventor
王凯
李健
吴科明
刘闯
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.)
Nanjing University of Aeronautics and Astronautics
Original Assignee
Nanjing University of Aeronautics and Astronautics
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 Nanjing University of Aeronautics and Astronautics filed Critical Nanjing University of Aeronautics and Astronautics
Priority to CN201611011286.9A priority Critical patent/CN106451855A/en
Publication of CN106451855A publication Critical patent/CN106451855A/en
Pending legal-status Critical Current

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Classifications

    • 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 rotors
    • H02K1/272Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753Inner 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
    • H02K1/276Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • 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 rotors
    • H02K1/272Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2746Inner 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 arranged with the same polarity, e.g. consequent pole type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

The invention discloses a consequent-pole permanent magnet motor of which the rotor surface is uniformly provided with a plurality of salient poles, the recesses between the adjacent salient poles are embedded with permanent magnets, and on the rotor surface the salient points and the permanent magnets are alternatively arranged in such a manner that the shape of the permanent magnets cooperates with the shape of the recesses so that the faces of the permanent magnets are in close contact with the respective faces of the recesses, and the upper surfaces of the permanent magnets and the upper surfaces of the salient poles are arc-surfaces. The curvature of the upper surfaces of the permanent magnet is the same as the curvature of the upper surface of the salient poles. The upper surfaces of all the salient poles form a complete cylindrical surface with the upper surfaces of the permanent magnets, and there is an air gap between the cylindrical surface and the stator teeth. Magnetizing direction of the permanent magnets is the same. The consequent-pole permanent magnet motor overcomes the shortcomings of the traditional surface-mounted permanent magnet motor, and saves the use of permanent magnetic materials and protective covers.

Description

A kind of Consequent pole permanent magnet motor
Technical field
The invention belongs to electric machine structure technical field, particularly to a kind of Consequent pole permanent magnet motor.
Background technology
In recent years, because magneto has high torque density, high efficiency, it is widely used in household electrical appliances, electric automobile, wind Power generates electricity and the occasions such as Aero-Space.
Traditional surface-mounted permanent magnet machine, its structure is as shown in Figure 1.Rotor surface is covered by permanent magnet completely, and permanent magnetism The material that body is adopted is the high rare earth permanent-magnetic material of price, and the production cost of therefore surface-mounted permanent magnet machine is higher.
In addition, the centrifugal force of rotor may make durface mounted permanent magnet body come off, in order to avoid causing irremediable damage, Non-magnetic protective case need to be added in vitro in permanent magnetism, which not only adds cost, and make the effective air gap between rotor Become big, thus reducing output torque ability.
Content of the invention
In order to solve the technical problem that above-mentioned background technology proposes, the present invention providing a kind of Consequent pole permanent magnet motor, gram Take the defect of traditional surface-mounted permanent magnet machine, save permanent magnet material and the use of protective case.
In order to realize above-mentioned technical purpose, the technical scheme is that:
A kind of Consequent pole permanent magnet motor, the rotor surface of described Consequent pole permanent magnet motor is uniformly provided with multiple salient poles, Adjacent salient poles Between recess-mounted have permanent magnet, form salient pole and the alternately arranged structure of permanent magnet in rotor surface, the shape of permanent magnet with The matching form of groove closes, and makes each face of permanent magnet and the close contact of each face, the upper surface of permanent magnet and the salient pole of groove Upper surface be cambered surface, and the radian of permanent magnet upper surface is identical with the radian of salient pole upper surface, all salient pole upper surfaces with Permanent magnet upper surface constitutes a complete face of cylinder, there is air gap between this face of cylinder and stator;The side of magnetizing of each piece of permanent magnet To identical.
Based on the preferred version of technique scheme, the mode that magnetizes of described permanent magnet is radial magnetizing or parallel magnetization.
Based on the preferred version of technique scheme, the extremely straight pole of rotor tooth of described Consequent pole permanent magnet motor or oblique pole.
Based on the preferred version of technique scheme, described stator core and rotor core are made by permeability magnetic material.
Based on the preferred version of technique scheme, described Consequent pole permanent magnet motor can carry out electric operation and the fortune that generates electricity OK.
The beneficial effect brought using technique scheme:
The present invention adopts the rotor with salient pole structure alternately arranged with permanent magnet, compared with traditional surface-mounted permanent magnet machine hence it is evident that Decrease the usage amount of permanent magnet, thus greatly reducing production cost.In addition, alternately arranged structure increased permanent magnet existing Tightness on rotor, does not therefore need additionally to arrange protective case in permanent magnet surfaces, shortens the air-gap separation between rotor, Improve torque output capability.
Brief description
Fig. 1 is traditional surface-mounted permanent magnet machine structural representation.
Fig. 2 is the electric machine structure schematic diagram of the present invention.
Fig. 3 is the comparison diagram of motor of the present invention and traditional surface-mount type motor torque fan-out capability.
Specific embodiment
Below with reference to accompanying drawing, technical scheme is described in detail.
The present invention is taking the magneto of three-phase 12/10 pole as a example, as shown in Fig. 2 adopting A, B, C three-phase windings, A phase armature Winding is formed by A1, A2, A3 and A4 coil tandem compound, B phase and C phase armature winding the like.Motor includes 12 stators Pole.
Rotor surface is uniformly provided with 5 salient poles, and the recess-mounted between adjacent rotor salient pole has permanent magnet, in rotor table Face, forms salient pole and the alternately arranged structure of permanent magnet.The matching form of the shape of permanent magnet and groove closes, and makes permanent magnet each Face is in close contact with each face of groove.The upper surface of the upper surface of permanent magnet and salient pole is cambered surface, and permanent magnet upper surface Radian identical with the radian of salient pole upper surface, all salient pole upper surfaces and permanent magnet upper surface constitute a complete face of cylinder, There is air gap between this face of cylinder and stator.Permanent magnet adopts parallel magnetization, and the magnetizing direction of each piece of permanent magnet is identical.
Although above-described embodiment is taking three-phase 12/10 pole structure as a example, traditional Surface Mount of any number of phases and the cooperation of pole groove Formula magneto all can change into the structure of present invention design.
In the present invention, permanent magnet magnetize mode in addition to parallel magnetization, may also take on radial magnetizing mode.Rotor Salient pole can be straight pole or oblique pole.Stator-rotor iron core is made using permeability magnetic material.
The magneto of present invention design can either make electric operation it is also possible to make generator operation.
The magneto of present invention design, because using the rotor with salient pole structure alternately arranged with permanent magnet, strengthening and turn Compactness between son and permanent magnet, from arranging protective case without extra outside permanent magnet, thus shorten rotor it Between air-gap separation, improve torque output capability, as shown in Figure 3.
Above example technological thought only to illustrate the invention is it is impossible to limit protection scope of the present invention with this, every According to technological thought proposed by the present invention, any change done on the basis of technical scheme, each fall within the scope of the present invention Within.

Claims (5)

1. a kind of Consequent pole permanent magnet motor it is characterised in that:The rotor surface of described Consequent pole permanent magnet motor is uniformly provided with multiple Salient pole, the recess-mounted between Adjacent salient poles has permanent magnet, forms salient pole and the alternately arranged structure of permanent magnet in rotor surface, forever The shape of magnet and the matching form conjunction of groove, make each face of permanent magnet be in close contact with each face of groove, permanent magnet The upper surface of upper surface and salient pole is cambered surface, and the radian of permanent magnet upper surface is identical with the radian of salient pole upper surface, owns Salient pole upper surface constitutes a complete face of cylinder with permanent magnet upper surface, there is air gap between this face of cylinder and stator;And each piece The magnetizing direction of permanent magnet is identical.
2. according to claim 1 a kind of Consequent pole permanent magnet motor it is characterised in that:The mode that magnetizes of described permanent magnet is footpath To magnetizing or parallel magnetization.
3. according to claim 1 a kind of Consequent pole permanent magnet motor it is characterised in that:The rotor of described Consequent pole permanent magnet motor The extremely straight pole of tooth or oblique pole.
4. according to claim 1 a kind of Consequent pole permanent magnet motor it is characterised in that:Described stator core and rotor core are equal It is made up of permeability magnetic material.
5. according to claim 1 a kind of Consequent pole permanent magnet motor it is characterised in that:Described Consequent pole permanent magnet motor can enter Row electric operation and generator operation.
CN201611011286.9A 2016-11-17 2016-11-17 Consequent-pole permanent magnet motor Pending CN106451855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611011286.9A CN106451855A (en) 2016-11-17 2016-11-17 Consequent-pole permanent magnet motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611011286.9A CN106451855A (en) 2016-11-17 2016-11-17 Consequent-pole permanent magnet motor

Publications (1)

Publication Number Publication Date
CN106451855A true CN106451855A (en) 2017-02-22

Family

ID=58219996

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611011286.9A Pending CN106451855A (en) 2016-11-17 2016-11-17 Consequent-pole permanent magnet motor

Country Status (1)

Country Link
CN (1) CN106451855A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106877532A (en) * 2017-04-26 2017-06-20 广东美芝制冷设备有限公司 Magnetize motor, rotor, permagnetic synchronous motor and compressor
CN110915103A (en) * 2017-08-04 2020-03-24 三菱电机株式会社 Rotor, motor, blower, air conditioner, and method for manufacturing rotor
CN110994839A (en) * 2019-12-16 2020-04-10 珠海格力电器股份有限公司 Electric motor rotor and alternating-pole electric motor
CN112236924A (en) * 2018-06-06 2021-01-15 三菱电机株式会社 Rotor and motor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100033046A1 (en) * 2007-01-22 2010-02-11 Akira Chiba Rotating electric machine
US20100308680A1 (en) * 2009-05-20 2010-12-09 Asmo Co., Ltd. Rotor and Motor
CN105871145A (en) * 2016-03-15 2016-08-17 张斌 Power-saving motor
CN105915004A (en) * 2016-06-06 2016-08-31 尚勤贵 Rotor of motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100033046A1 (en) * 2007-01-22 2010-02-11 Akira Chiba Rotating electric machine
US20100308680A1 (en) * 2009-05-20 2010-12-09 Asmo Co., Ltd. Rotor and Motor
CN105871145A (en) * 2016-03-15 2016-08-17 张斌 Power-saving motor
CN105915004A (en) * 2016-06-06 2016-08-31 尚勤贵 Rotor of motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106877532A (en) * 2017-04-26 2017-06-20 广东美芝制冷设备有限公司 Magnetize motor, rotor, permagnetic synchronous motor and compressor
CN110915103A (en) * 2017-08-04 2020-03-24 三菱电机株式会社 Rotor, motor, blower, air conditioner, and method for manufacturing rotor
CN112236924A (en) * 2018-06-06 2021-01-15 三菱电机株式会社 Rotor and motor
CN110994839A (en) * 2019-12-16 2020-04-10 珠海格力电器股份有限公司 Electric motor rotor and alternating-pole electric motor

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Application publication date: 20170222