CN106505760A - A kind of Consequent pole permanent magnet motor of rotor segment - Google Patents
A kind of Consequent pole permanent magnet motor of rotor segment Download PDFInfo
- Publication number
- CN106505760A CN106505760A CN201611011019.1A CN201611011019A CN106505760A CN 106505760 A CN106505760 A CN 106505760A CN 201611011019 A CN201611011019 A CN 201611011019A CN 106505760 A CN106505760 A CN 106505760A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- rotor
- pole
- motor
- salient pole
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2746—Inner 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention discloses a kind of Consequent pole permanent magnet motor of rotor segment, including two-stage rotor, two-stage rotor connects along rotor axial；The surface of every section of rotor is uniformly provided with multiple salient poles, recess-mounted between Adjacent salient poles has permanent magnet, salient pole is formed in rotor surface structure is alternately arranged with permanent magnet, the matching form of the shape of permanent magnet and groove is closed, each face of permanent magnet is made to be in close contact with each face of groove, the upper surface of the upper surface and salient pole of permanent magnet is cambered surface, and the radian of permanent magnet upper surface is identical with the radian of salient pole upper surface, and all salient pole upper surfaces constitute a complete face of cylinder with permanent magnet upper surface；Permanent magnet on two-stage rotor circumferentially offsets half electric cycle angle；Magnetizing direction with each piece of permanent magnet on section rotor is identical, and the magnetizing direction of the permanent magnet on different section rotors is contrary.Instant invention overcomes the defect of traditional surface-mounted permanent magnet machine, has saved the use of permanent magnet material and protective case, and has avoided the magnetization of roller end.
Description
Technical field
The invention belongs to electric machine structure technical field, a kind of more particularly to Consequent pole permanent magnet motor of rotor segment.
Background technology
In recent years, as 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 are as shown in Figure 1.Rotor surface is covered by permanent magnet completely, and permanent magnetism
The material adopted by body is the high rare earth permanent-magnetic material of price, and therefore the production cost of 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 cause the effective air gap between rotor
Become big, so as to reduce output torque ability.
Content of the invention
In order to solve the technical problem that above-mentioned background technology is proposed, the present invention is providing a kind of alternating pole of rotor segment forever
Magneto, overcomes the defect of traditional surface-mounted permanent magnet machine, has saved the use of permanent magnet material and protective case, and avoids and turn
The magnetization of shaft end.
In order to realize above-mentioned technical purpose, the technical scheme is that：
A kind of Consequent pole permanent magnet motor of rotor segment, the Consequent pole permanent magnet motor include that two-stage rotor, two-stage rotor edge turn
Sub- axial direction connects, and two-stage rotor structure is identical；The surface of every section of rotor is uniformly provided with multiple salient poles, recessed between Adjacent salient poles
Groove is inlaid with permanent magnet, forms salient pole in rotor surface and is alternately arranged structure, the shape of permanent magnet and the shape of groove with permanent magnet
Shape is engaged, and each face of permanent magnet is in close contact with each face of groove, the upper surface of the upper surface and salient pole of permanent magnet
Cambered surface is, and the radian of permanent magnet upper surface is identical with the radian of salient pole upper surface, on all salient pole upper surfaces and permanent magnet
Surface constitutes a complete face of cylinder；Permanent magnet on two-stage rotor circumferentially offsets half electric cycle angle；With on section rotor
Each piece of permanent magnet magnetizing direction identical, and the magnetizing direction of the permanent magnet on different section rotor is contrary.
Based on the preferred version of above-mentioned technical proposal, the permanent magnet magnetize mode for radial magnetizing, parallel magnetization or
Halbach array magnetizes.
Based on the preferred version of above-mentioned technical proposal, the stator core and rotor core are made by permeability magnetic material.
Based on the preferred version of above-mentioned technical proposal, the Consequent pole permanent magnet motor can carry out electric operation and the fortune that generates electricity
OK.
Based on the preferred version of above-mentioned technical proposal, the Consequent pole permanent magnet motor can be used as inner rotor motor and outer turn
Sub-motor.
The beneficial effect that is brought using above-mentioned technical proposal：
The structure that the present invention is alternately arranged using rotor with salient pole and permanent magnet, compared with traditional surface-mounted permanent magnet machine, hence it is evident that
The usage amount of permanent magnet is reduced, so as to greatly reduce production cost.In addition, the structure being alternately arranged increased permanent magnet existing
Tightness on rotor, therefore need not additionally arrange protective case in permanent magnet surfaces, shorten the air-gap separation between rotor,
Improve torque output capability.
In addition, the rotor structure that single rotor salient pole is alternately arranged with permanent magnet can produce unipolarity magnetic in roller end
Change, the reliability on whole electric system and safety are produced impact, therefore method of the present invention using rotor segment, turning
Leakage path is provided inside son and rotating shaft, it is to avoid the magnetization of roller end.
Description of the drawings
Fig. 1 is traditional surface-mounted permanent magnet machine structural representation.
Fig. 2 (a), Fig. 2 (b) are first paragraph rotor in the present invention, the two-dimensional representation of second segment rotor respectively.
Fig. 3 is the overall schematic three dimensional views of rotor segment Consequent pole permanent magnet motor proposed by the present invention.
Specific embodiment
Below with reference to accompanying drawing, technical scheme is described in detail.
The present invention by taking the magneto of 12/10 pole of three-phase as an example, using A, B, C three-phase windings, A phases armature winding by A1,
A2, A3 and A4 coil tandem compound is formed, B phases and C phase armature winding the like.Motor includes 12 stator poles.
The Consequent pole permanent magnet motor of rotor segment includes that two-stage rotor, two-stage rotor connect along rotor axial, and two sections turn
Minor structure is identical.The surface of every section of rotor is uniformly provided with multiple salient poles, and the recess-mounted between Adjacent salient poles has permanent magnet, is turning
Sublist face forms salient pole and is alternately arranged structure, the shape of permanent magnet and the matching form conjunction of groove with permanent magnet, makes permanent magnet
Each face is in close contact with each face of groove, and the upper surface of the upper surface and salient pole of permanent magnet is in cambered surface, and permanent magnet
The radian on surface is identical with the radian of salient pole upper surface, and all salient pole upper surfaces constitute a complete cylinder with permanent magnet upper surface
Face；Permanent magnet on two-stage rotor circumferentially offsets half electric cycle angle.The side of magnetizing with each piece of permanent magnet on section rotor
To identical, and the magnetizing direction of the permanent magnet on different section rotors is contrary.
Fig. 2 (a) is the structural representation of first paragraph rotor in the present invention, and Fig. 2 (b) is the knot of second segment rotor in the present invention
Structure schematic diagram, Fig. 3 are the overall schematic of motor of the present invention.
Although above-described embodiment is by taking 12/10 pole structure of three-phase as an example, traditional Surface Mount that any number of phases and pole groove coordinate
The structure of present invention design can be changed into by formula magneto.
In the present invention, the mode of magnetizing of permanent magnet can be filled for parallel magnetization, radial magnetizing or Halbach array
Magnetic.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 the structure being alternately arranged using rotor with salient pole and permanent magnet, is strengthened and is turned
Compactness between son and permanent magnet, arranges protective case on the outside of permanent magnet without extra, so as to shorten rotor it
Between air-gap separation, improve torque output capability.Meanwhile, the structure of segmented rotor provides leakage field inside rotor and rotating shaft
Path, it is to avoid the magnetization of roller end.
Above example technological thought only to illustrate the invention, it is impossible to which protection scope of the present invention is limited with this, every
According to technological thought proposed by the present invention, any change that is done on the basis of technical scheme, the scope of the present invention is each fallen within
Within.
Claims (5)
1. a kind of Consequent pole permanent magnet motor of rotor segment, it is characterised in that：The Consequent pole permanent magnet motor includes two-stage rotor,
Two-stage rotor connects along rotor axial, and two-stage rotor structure is identical；The surface of every section of rotor is uniformly provided with multiple salient poles, adjacent
Recess-mounted between salient pole has permanent magnet, forms salient pole in rotor surface and is alternately arranged structure, the shape of permanent magnet with permanent magnet
The matching form of shape and groove is closed, and each face of permanent magnet is in close contact with each face of groove, the upper surface of permanent magnet and
The upper surface of salient pole is cambered surface, and the radian of permanent magnet upper surface is identical with the radian of salient pole upper surface, all salient pole upper tables
Face constitutes a complete face of cylinder with permanent magnet upper surface；Permanent magnet on two-stage rotor circumferentially offsets half electric cycle angle
Degree；Magnetizing direction with each piece of permanent magnet on section rotor is identical, and the magnetizing direction of the permanent magnet on different section rotors is contrary.
2. a kind of Consequent pole permanent magnet motor of rotor segment according to claim 1, it is characterised in that：The permanent magnet fills
Magnetic mode magnetizes for radial magnetizing, parallel magnetization or Halbach array.
3. a kind of Consequent pole permanent magnet motor of rotor segment according to claim 1, it is characterised in that：The stator core and
Rotor core is made by permeability magnetic material.
4. a kind of Consequent pole permanent magnet motor of rotor segment according to claim 1, it is characterised in that：The alternately pole permanent magnetism
Motor can carry out electric operation and generator operation.
5. a kind of Consequent pole permanent magnet motor of rotor segment according to claim 1, it is characterised in that：The alternately pole permanent magnetism
Motor can be used as inner rotor motor and external rotor electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011019.1A CN106505760A (en) | 2016-11-17 | 2016-11-17 | A kind of Consequent pole permanent magnet motor of rotor segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011019.1A CN106505760A (en) | 2016-11-17 | 2016-11-17 | A kind of Consequent pole permanent magnet motor of rotor segment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106505760A true CN106505760A (en) | 2017-03-15 |
Family
ID=58323503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611011019.1A Pending CN106505760A (en) | 2016-11-17 | 2016-11-17 | A kind of Consequent pole permanent magnet motor of rotor segment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106505760A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196433A (en) * | 2017-05-25 | 2017-09-22 | 华中科技大学 | A kind of device, magneto and method for reducing cogging torque of permanent magnet motor |
| CN109361281A (en) * | 2018-12-14 | 2019-02-19 | 日立电梯电机（广州）有限公司 | Elevator, permanent-magnetic tractor and its rotor assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040245880A1 (en) * | 2003-06-04 | 2004-12-09 | Feng Liang | Rotor skew methods for permanent magnet motors |
| JP2006158037A (en) * | 2004-11-26 | 2006-06-15 | Honda Motor Co Ltd | Buried magnet rotor |
| US20100033046A1 (en) * | 2007-01-22 | 2010-02-11 | Akira Chiba | Rotating electric machine |
| CN202178686U (en) * | 2011-08-22 | 2012-03-28 | 高国华 | Asynchronous squirrel-cage motor and rotor thereof |
| CN202737714U (en) * | 2012-06-06 | 2013-02-13 | 春城控股集团有限公司 | Brushless permanent magnetism direct current motor with sectional offset high speed rotor magnetic pole |
| CN105846578A (en) * | 2016-05-12 | 2016-08-10 | 佛山市汉特森电机有限公司 | Permanent magnet rotating core and motor rotor employing same |
| US20160285329A1 (en) * | 2015-02-21 | 2016-09-29 | Floyd H. Knapp | Compact implementation for a high-efficiency, variable-speed permanent magnet motor |
| CN106030990A (en) * | 2014-02-17 | 2016-10-12 | 三菱电机株式会社 | Permanent magnet motor |
-
2016
- 2016-11-17 CN CN201611011019.1A patent/CN106505760A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040245880A1 (en) * | 2003-06-04 | 2004-12-09 | Feng Liang | Rotor skew methods for permanent magnet motors |
| JP2006158037A (en) * | 2004-11-26 | 2006-06-15 | Honda Motor Co Ltd | Buried magnet rotor |
| US20100033046A1 (en) * | 2007-01-22 | 2010-02-11 | Akira Chiba | Rotating electric machine |
| CN202178686U (en) * | 2011-08-22 | 2012-03-28 | 高国华 | Asynchronous squirrel-cage motor and rotor thereof |
| CN202737714U (en) * | 2012-06-06 | 2013-02-13 | 春城控股集团有限公司 | Brushless permanent magnetism direct current motor with sectional offset high speed rotor magnetic pole |
| CN106030990A (en) * | 2014-02-17 | 2016-10-12 | 三菱电机株式会社 | Permanent magnet motor |
| US20160285329A1 (en) * | 2015-02-21 | 2016-09-29 | Floyd H. Knapp | Compact implementation for a high-efficiency, variable-speed permanent magnet motor |
| CN105846578A (en) * | 2016-05-12 | 2016-08-10 | 佛山市汉特森电机有限公司 | Permanent magnet rotating core and motor rotor employing same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196433A (en) * | 2017-05-25 | 2017-09-22 | 华中科技大学 | A kind of device, magneto and method for reducing cogging torque of permanent magnet motor |
| CN107196433B (en) * | 2017-05-25 | 2019-09-27 | 华中科技大学 | A kind of device, magneto and method reducing cogging torque of permanent magnet motor |
| CN109361281A (en) * | 2018-12-14 | 2019-02-19 | 日立电梯电机（广州）有限公司 | Elevator, permanent-magnetic tractor and its rotor assembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170315 |
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| RJ01 | Rejection of invention patent application after publication |