CN106451854B - A kind of interdigital Consequent pole permanent magnet motor - Google Patents
A kind of interdigital Consequent pole permanent magnet motor Download PDFInfo
- Publication number
- CN106451854B CN106451854B CN201611011101.4A CN201611011101A CN106451854B CN 106451854 B CN106451854 B CN 106451854B CN 201611011101 A CN201611011101 A CN 201611011101A CN 106451854 B CN106451854 B CN 106451854B
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- Prior art keywords
- permanent magnet
- rotor
- interdigital
- adjacent
- magnet motor
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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
- H02K1/27—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
- 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
- H02K1/2753—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 or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a kind of interdigital Consequent pole permanent magnet motor, including n sections of rotors, n sections of rotors successively connect along rotor axial, and the annular permanent magnet of axial charging is equipped between adjacent two-stage rotor, and the magnetizing direction of adjacent annular permanent magnet is opposite；The structure of n sections of rotors is identical, and the surface of every section of rotor is uniformly provided with multiple salient poles, is inlaid with permanent magnet in the groove between Adjacent salient poles, forms salient pole in rotor surface and permanent magnet is alternately arranged structure；The permanent magnet on adjacent two-stage rotor surface circumferentially offsets half of electric period angle；Identical with the magnetizing direction of each permanent magnet on section rotor surface, the magnetizing direction of the permanent magnet on adjacent segment rotor surface is opposite.The present invention overcomes the defects of traditional surface-mounted permanent magnet machine, have saved the use of permanent-magnet material, have reduced costs, and enhance output torque ability.
Description
Technical field
The invention belongs to electric machine structure technical fields, in particular to a kind of interdigital Consequent pole permanent magnet motor.
Background technique
In recent years, since magneto has high torque density, high efficiency, it is widely used in household electrical appliances, electric car, wind
The occasions such as power power generation and aerospace.
Traditional surface-mounted permanent magnet machine, structure are as shown in Figure 1.Rotor surface is covered by permanent magnet completely, and permanent magnetism
Material used by body is expensive rare earth permanent-magnetic material, 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 fall off, in order to avoid causing irremediable damage,
Non-magnetic protective case need to be added outside permanent magnet, which not only adds costs, and make the effective air gap between rotor
Become larger, to reduce output torque ability.
Summary of the invention
In order to solve the technical issues of above-mentioned background technique proposes, the present invention is providing a kind of interdigital alternately pole Permanent Magnet and Electric
Machine overcomes the defect of traditional surface-mounted permanent magnet machine, has saved the use of permanent-magnet material and protective case, enhances output torque energy
Power.
In order to achieve the above technical purposes, the technical solution of the present invention is as follows:
A kind of interdigital Consequent pole permanent magnet motor, including n sections of rotors, n are the integer more than or equal to 2；Successively edge turns n sections of rotors
It is sub axially to connect, and the annular permanent magnet of axial charging, the side of magnetizing of adjacent annular permanent magnet are equipped between adjacent two-stage rotor
To opposite；The structure of n sections of rotors is identical, and the surface of every section of rotor is uniformly provided with multiple salient poles, in the groove between Adjacent salient poles
It is inlaid with permanent magnet, salient pole is formed in rotor surface and permanent magnet is alternately arranged structure；The permanent magnet on adjacent two-stage rotor surface
Circumferentially offset half of electric period angle；Identical, the adjacent two-stage rotor with the magnetizing direction of each permanent magnet on section rotor surface
The magnetizing direction of permanent magnet on surface is opposite.
Preferred embodiment based on the above-mentioned technical proposal, the permanent magnet of each section of rotor surface magnetize mode be radial magnetizing,
Parallel magnetization or Halbach array magnetize.
Preferred embodiment based on the above-mentioned technical proposal, the ring between the permanent magnet of each section of rotor surface, adjacent two-stage rotor
The type of shape permanent magnet is not identical.
Preferred embodiment based on the above-mentioned technical proposal, it is recessed between the shape and Adjacent salient poles of the permanent magnet of every section of rotor surface
The shape of slot matches, and each face in each face and groove that make permanent magnet is in close contact, the upper surface of permanent magnet and salient pole
Upper surface is cambered surface, and the radian of permanent magnet upper surface is identical as the radian of salient pole upper surface, all salient pole upper surfaces with forever
Magnet upper surface constitutes a complete cylindrical surface.
The outside of preferred embodiment based on the above-mentioned technical proposal, the permanent magnet of every section of rotor surface is equipped with protective case.
Preferred embodiment based on the above-mentioned technical proposal, the stator core and rotor core of the Consequent pole permanent magnet motor by
Permeability magnetic material is made.
Preferred embodiment based on the above-mentioned technical proposal, the Consequent pole permanent magnet motor are able to carry out electric operation and power generation fortune
Row.
Preferred embodiment based on the above-mentioned technical proposal, the Consequent pole permanent magnet motor can be as inner rotor motors and outer turn
Sub-motor.
By adopting the above technical scheme bring the utility model has the advantages that
The present invention is using rotor with salient pole and the alternately arranged structure of permanent magnet, compared with traditional surface-mounted permanent magnet machine,
The usage amount of permanent magnet is considerably reduced, production cost is thus greatly reduced.
In addition, single rotor salient pole and the alternately arranged rotor structure of permanent magnet can generate unipolarity magnetic in roller end
Change, by entire electric system reliability and safety have an impact, the method for being considered as rotor segment, rotor and turn
Leakage path is provided inside axis, avoids the magnetization of roller end.
It, can be in gas although can be avoided roller end magnetization but if only the permanent magnet of rotor surface is segmented
Axial leakage field is generated in gap, reduces torque output capability, and the present invention fills between rotor and rotor provided with ring shaped axial thus
Magnetic permanent magnet forms interdigital permanent-magnet structure, further promotes torque output capability.
Detailed description of the invention
Fig. 1 is traditional surface-mounted permanent magnet machine structural schematic diagram.
Fig. 2 (a), Fig. 2 (b) are the two dimension signal of first segment rotor, second segment rotor in 4 sections of rotors in embodiment respectively
Figure.
Fig. 3 is the schematic three dimensional views of interdigital Consequent pole permanent magnet motor proposed by the present invention.
Specific embodiment
Below with reference to attached drawing, technical solution of the present invention is described in detail.
The present invention uses 4 sections of rotors by taking the magneto of 12/10 pole of three-phase as an example.Using 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 and so on.Motor includes 12
Stator poles.
Interdigital Consequent pole permanent magnet motor includes 4 sections of rotors, and 4 sections of rotors successively connect along rotor axial, and adjacent two sections turn
The annular permanent magnet of axial charging is equipped between son, the magnetizing direction of adjacent annular permanent magnet is opposite.The structure phase of 4 sections of rotors
Together, as shown in Fig. 2 (a), 2 (b), the surface of every section of rotor is uniformly provided with 5 salient poles, is inlaid in the groove between Adjacent salient poles
Permanent magnet forms 5 salient poles in rotor surface and 5 permanent magnets is alternately arranged structure, the shape of permanent magnet and the shape of groove
It matches, each face in each face and groove that make permanent magnet is in close contact, and the upper surface of permanent magnet and the upper surface of salient pole are equal
For cambered surface, and the radian of permanent magnet upper surface is identical as the radian of salient pole upper surface, table on all salient pole upper surfaces and permanent magnet
Face constitutes a complete cylindrical surface；The permanent magnet on adjacent two-stage rotor surface circumferentially offsets half of electric period angle.
Fig. 3 is the whole schematic three dimensional views 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 of any number of phases and the cooperation of pole slot
Formula magneto can change the structure designed for the present invention.
In the present invention, the mode of magnetizing of the permanent magnet of each section of rotor surface can for parallel magnetization, radial magnetizing or
Halbach array magnetizes.Stator-rotor iron core is made of permeability magnetic material.Between the permanent magnet of rotor surface, adjacent two-stage rotor
The type of annular permanent magnet can not be identical.
In the present invention, rotor surface salient pole need not be in close contact with permanent magnet, can be in the outer of rotor surface permanent magnet
Protective case is arranged in side, to prevent rotor surface permanent magnet from falling off.
The magneto that the present invention designs can either make electric operation, can also make generator operation；Both interior turn had been can be used as
Sub-motor can also be used as external rotor electric machine.
The magneto that the present invention designs, because being reduced forever using rotor with salient pole and the alternately arranged structure of permanent magnet
The use of magnetic material, reduces production cost.Meanwhile surface and each section of rotor using the structure of segmented rotor, in rotor
Between permanent magnet is set, form interdigital permanent-magnet structure, eliminate roller end magnetization while, further increase torque output energy
Power.
The above examples only illustrate the technical idea of the present invention, and this does not limit the scope of protection of the present invention, all
According to the technical idea provided by the invention, any changes made on the basis of the technical scheme each falls within the scope of the present invention
Within.
Claims (8)
1. a kind of interdigital Consequent pole permanent magnet motor, it is characterised in that: the Consequent pole permanent magnet motor includes n sections of rotors, n be greater than
Integer equal to 2；N sections of rotors successively connect along rotor axial, and the annular between adjacent two-stage rotor equipped with axial charging is forever
The magnetizing direction of magnet, adjacent annular permanent magnet is opposite；The structure of n sections of rotors is identical, and the surface of every section of rotor is uniformly provided with more
A salient pole is inlaid with permanent magnet in the groove between Adjacent salient poles, forms salient pole in rotor surface and permanent magnet is alternately arranged knot
Structure；It is identical with the magnetizing direction of each permanent magnet on section rotor surface, the side of magnetizing of the permanent magnet on adjacent two-stage rotor surface
To opposite.
2. a kind of interdigital Consequent pole permanent magnet motor according to claim 1, it is characterised in that: the permanent magnet of each section of rotor surface
Magnetize mode be radial magnetizing or parallel magnetization.
3. a kind of interdigital Consequent pole permanent magnet motor according to claim 1, it is characterised in that: the permanent magnetism of each section of rotor surface
The type of annular permanent magnet between body, adjacent two-stage rotor is not identical.
4. a kind of interdigital Consequent pole permanent magnet motor according to claim 1, it is characterised in that: the permanent magnet of every section of rotor surface
Shape and Adjacent salient poles between the shape of groove match, each face in each face and groove that make permanent magnet is in close contact,
The upper surface of permanent magnet and the upper surface of salient pole are cambered surface, and the radian phase of the radian of permanent magnet upper surface and salient pole upper surface
Together, all salient pole upper surfaces and permanent magnet upper surface constitute a complete cylindrical surface.
5. a kind of interdigital Consequent pole permanent magnet motor according to claim 1, it is characterised in that: in the permanent magnetism of every section of rotor surface
Protective case is arranged in the outside of body.
6. a kind of interdigital Consequent pole permanent magnet motor according to claim 1, it is characterised in that: the Consequent pole permanent magnet motor
Stator core and rotor core are made of permeability magnetic material.
7. a kind of interdigital Consequent pole permanent magnet motor according to claim 1, it is characterised in that: the Consequent pole permanent magnet motor energy
Enough carry out electric operation and generator operation.
8. a kind of interdigital Consequent pole permanent magnet motor according to claim 1, it is characterised in that: the Consequent pole permanent magnet motor energy
Enough it is used as inner rotor motor and external rotor electric machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011101.4A CN106451854B (en) | 2016-11-17 | 2016-11-17 | A kind of interdigital Consequent pole permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011101.4A CN106451854B (en) | 2016-11-17 | 2016-11-17 | A kind of interdigital Consequent pole permanent magnet motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106451854A CN106451854A (en) | 2017-02-22 |
| CN106451854B true CN106451854B (en) | 2019-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611011101.4A Active CN106451854B (en) | 2016-11-17 | 2016-11-17 | A kind of interdigital Consequent pole permanent magnet motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN106451854B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981937B (en) * | 2017-03-10 | 2019-07-30 | 东南大学 | A kind of rotor misconstruction motor |
| CN108768017A (en) * | 2018-05-30 | 2018-11-06 | 广东威灵电机制造有限公司 | Rotor and Consequent pole permanent magnet motor |
| CN114421658B (en) * | 2022-01-29 | 2024-07-23 | 西安交通大学 | Axial staggered permanent magnet motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10318278A1 (en) * | 2002-04-24 | 2003-11-06 | Papst Motoren Gmbh & Co Kg | Synchronous drive e.g. for fan, with electromagnetic stator and permanent magnet rotor provided by permanent magnet bands, rings, segments or discs attached to rotor |
| JP4515236B2 (en) * | 2004-11-26 | 2010-07-28 | 本田技研工業株式会社 | Embedded magnet type rotor |
| 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 |
| CN106030990A (en) * | 2014-02-17 | 2016-10-12 | 三菱电机株式会社 | Permanent magnet motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6867524B2 (en) * | 2003-06-04 | 2005-03-15 | Ford Global Technologies, Llc | Rotor skew methods for permanent magnet motors |
| US9906116B2 (en) * | 2015-02-21 | 2018-02-27 | Floyd H. Knapp | Compact implementation for a high-efficiency, variable-speed permanent magnet motor |
-
2016
- 2016-11-17 CN CN201611011101.4A patent/CN106451854B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10318278A1 (en) * | 2002-04-24 | 2003-11-06 | Papst Motoren Gmbh & Co Kg | Synchronous drive e.g. for fan, with electromagnetic stator and permanent magnet rotor provided by permanent magnet bands, rings, segments or discs attached to rotor |
| JP4515236B2 (en) * | 2004-11-26 | 2010-07-28 | 本田技研工業株式会社 | Embedded magnet type rotor |
| 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 |
| 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 |
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|---|---|
| CN106451854A (en) | 2017-02-22 |
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