CN112688512A - Electromagnetic load separation type axial magnetic field permanent magnet motor - Google Patents
Electromagnetic load separation type axial magnetic field permanent magnet motor Download PDFInfo
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- CN112688512A CN112688512A CN202011584008.9A CN202011584008A CN112688512A CN 112688512 A CN112688512 A CN 112688512A CN 202011584008 A CN202011584008 A CN 202011584008A CN 112688512 A CN112688512 A CN 112688512A
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Abstract
The invention relates to an electromagnetic load separation type axial magnetic field permanent magnet motor which comprises two armature stators, a middle permanent magnet stator and two rotors, wherein the two armature stators, the permanent magnet stator and the two rotors are sequentially arranged coaxially along the axial direction according to the sequence of a first armature stator, a first rotor, a permanent magnet stator, a second rotor and a second armature stator, the first armature stator and the second armature stator are completely identical, the first rotor and the second rotor are completely identical, the armature stators respectively comprise armature stator cores and armature windings, the permanent magnet stators comprise permanent magnet stator cores, high-coercivity permanent magnets and permanent magnet stator supports made of non-magnetic materials, and the rotors respectively comprise rotor cores and rotor supports made of non-magnetic materials. The electromagnetic load separation type axial magnetic field permanent magnet motor solves the problems that the width and the thickness of the stator tooth of the existing stator permanent magnet type axial magnetic field permanent magnet motor are narrow and the yoke part of an iron core is relatively thin, improves the output capacity of the motor, and reduces the vibration and the noise of the motor.
Description
Technical Field
The invention relates to an electromagnetic load separation type axial magnetic field permanent magnet motor, and belongs to the field of axial magnetic field permanent magnet motors.
Background
Stator permanent magnet type axial magnetic field permanent magnet motors such as a magnetic flux switching axial magnetic field permanent magnet motor, a magnetic flux reverse axial magnetic field permanent magnet motor and a doubly salient axial magnetic field permanent magnet motor have been studied deeply since the past, and the advantages of strong fault tolerance, wide speed regulation, high reliability and the like prove that the stator permanent magnet type axial magnetic field permanent magnet motor has wide application prospect. The stator permanent magnet type axial magnetic field permanent magnet motor adopts a double salient pole iron core structure and a fractional slot centralized short-distance winding, and the time and space harmonic distribution of the air gap radial electromagnetic force wave of the stator permanent magnet type axial magnetic field permanent magnet motor is different from that of the traditional induction motor, the rotor permanent magnet type synchronous motor and the like. In addition, the armature winding and the permanent magnet are arranged on the same stator, so that the tooth width of the stator is narrow, the magnetic density of a stator core is high, the saturation is easier compared with the traditional motor, and the magnetostrictive effect is more obvious. At the same time, magnetic field harmonics and electromagnetic force harmonics are also increased. On the other hand, a common magnetic flux switching axial magnetic field permanent magnet motor in a stator permanent magnet type axial magnetic field permanent magnet motor is usually assembled in a modular manner, that is, the stator permanent magnet motor is formed by surrounding stator core modules and permanent magnets at intervals, or each module is connected through a thin magnetic conduction bridge. Because the yoke portion of the iron core of the flux switching axial magnetic field permanent magnet motor is relatively thinner, factors influencing the natural frequency of the stator-shell structure are increased. Therefore, in order to overcome the defects of the existing stator permanent magnet type axial magnetic field permanent magnet motor, a novel electromagnetic load separation stator permanent magnet type axial magnetic field permanent magnet motor is developed, and the method has important theoretical significance and engineering application value.
Disclosure of Invention
In view of the defects of the prior art, the technical problem to be solved by the invention is to provide an electromagnetic load separation type axial magnetic field permanent magnet motor.
In order to solve the technical problems, the technical scheme of the invention is as follows: the first armature stator and the second armature stator are completely the same, the first rotor and the second rotor are completely the same, the armature stators respectively comprise armature stator cores and armature windings, the permanent magnet stators respectively comprise permanent magnet stator cores, high-coercivity permanent magnets and permanent magnet stator supports made of non-magnetic-conducting materials, and the rotors respectively comprise rotor cores and rotor supports made of non-magnetic-conducting materials.
Preferably, the armature stator core includes a stator yoke and stator teeth, the stator teeth face the rotor, and the armature windings adopt concentrated windings and are respectively wound on the stator teeth of the armature stator.
Preferably, the rotor support is of a circular disc-shaped structure, a plurality of rotor core slots are uniformly formed in the rotor support, and the rotor cores are arranged in the rotor core slots.
Preferably, the permanent magnet stator core is in an H shape, the high-coercivity permanent magnet is embedded between two adjacent permanent magnet stator cores, the permanent magnet stator support is in a circular disc-shaped structure, a plurality of permanent magnet stator slots are uniformly formed in the permanent magnet stator support, and the permanent magnet stator core is arranged in the permanent magnet stator slots.
Compared with the prior art, the invention has the following beneficial effects: the electromagnetic load separation type axial magnetic field permanent magnet motor solves the problems that the width and the thickness of the stator tooth of the existing stator permanent magnet type axial magnetic field permanent magnet motor are narrow and the yoke part of an iron core is relatively thin, improves the output capacity of the motor, and reduces the vibration and the noise of the motor.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is an exploded view of an embodiment of the present invention.
Fig. 2 is a structural view of a permanent magnet stator in the embodiment of the present invention.
Fig. 3 is a structural view of an armature stator without a winding in the embodiment of the invention.
Fig. 4 is a structural view of an armature stator including windings in the embodiment of the invention.
Detailed Description
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1 to 4, an electromagnetic load separation type axial magnetic field permanent magnet motor comprises two armature stators, a middle permanent magnet stator and two rotors, wherein the two armature stators, the permanent magnet stator and the two rotors are coaxially and sequentially arranged along an axial direction according to the sequence of a first armature stator 1, a first rotor 2, a permanent magnet stator 3, a second rotor 4 and a second armature stator 5, the first armature stator and the second armature stator are completely the same, the first rotor and the second rotor are completely the same and are symmetrically arranged, the armature stators respectively comprise an armature stator core 6 and an armature winding 7, the permanent magnet stator comprises a permanent magnet stator core 8, a high-coercivity permanent magnet 9 and a permanent magnet stator support 10 made of non-magnetic materials, the rotors each include a rotor core 11 and a rotor holder 12 made of a non-magnetic conductive material.
In the embodiment of the invention, the armature stator core comprises a stator yoke and stator teeth, the stator teeth face to the rotor, and the armature windings adopt concentrated windings and are respectively wound on the stator teeth of the armature stator. The number of teeth of the stator is 12, and the number of armature windings is 12.
In the embodiment of the invention, the rotor bracket is in a circular disc-shaped structure, 10 rotor core slots 13 are uniformly formed in the rotor bracket, and the rotor core is arranged in the rotor core slot.
In the embodiment of the invention, the permanent magnet stator iron core is in an H shape, the high-coercivity permanent magnet is embedded between two adjacent permanent magnet stator iron cores, the permanent magnet stator support is in an annular disc-shaped structure, 12 permanent magnet stator slots are uniformly formed in the permanent magnet stator support, and the permanent magnet stator iron core is arranged in the permanent magnet stator slots.
In the embodiment of the invention, the high-coercivity permanent magnet is made of NdFeB material, and the number of the high-coercivity permanent magnets is 12.
The electromagnetic load separation type axial magnetic field permanent magnet motor has the advantages that the electric load and the magnetic load are positioned on different stators, the tooth width and the thickness of the stators are wide, a magnetic circuit is not easy to saturate, the force output capacity of the motor is stronger, the yoke part of the motor core is relatively thick, and the vibration and the noise of the motor are reduced.
The present invention is not limited to the above-described preferred embodiments, and various other types of electromagnetic load separation type axial magnetic field permanent magnet motors can be obtained by anyone in light of the present invention. All equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.
Claims (4)
1. An electromagnetic load separation type axial magnetic field permanent magnet motor is characterized in that: the permanent-magnet motor comprises two armature stators, a middle permanent-magnet stator and two rotors, wherein the two armature stators, the permanent-magnet stator and the two rotors are sequentially arranged along the axial direction and the coaxial direction according to the sequence of the first armature stator, the first rotor, the permanent-magnet stator, the second rotor and the second armature stator, the first armature stator and the second armature stator are completely the same, the first rotor and the second rotor are completely the same, the armature stators respectively comprise armature stator cores and armature windings, the permanent-magnet stators comprise permanent-magnet stator cores, high-coercivity permanent magnets and permanent-magnet stator supports made of non-magnetic materials, and the rotors respectively comprise rotor cores and rotor supports made of non-magnetic materials.
2. The electromagnetic load separation type axial magnetic field permanent magnet motor according to claim 1, characterized in that: the armature stator iron core comprises a stator yoke and stator teeth, the stator teeth face the rotor, and the armature windings adopt concentrated windings and are wound on the stator teeth of the armature stator respectively.
3. The electromagnetic load separation type axial magnetic field permanent magnet motor according to claim 1, characterized in that: the rotor support is of an annular disc-shaped structure, a plurality of rotor core grooves are uniformly formed in the rotor support, and the rotor cores are arranged in the rotor core grooves.
4. The electromagnetic load separation type axial magnetic field permanent magnet motor according to claim 1, characterized in that: the permanent magnet stator comprises permanent magnet stator cores and permanent magnet stator supports, wherein the permanent magnet stator cores are H-shaped, the high-coercivity permanent magnet is embedded between two adjacent permanent magnet stator cores, the permanent magnet stator supports are of circular disc-shaped structures, a plurality of permanent magnet stator slots are uniformly formed in the permanent magnet stator supports, and the permanent magnet stator cores are arranged in the permanent magnet stator slots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011584008.9A CN112688512B (en) | 2020-12-29 | 2020-12-29 | Electromagnetic load separation type axial magnetic field permanent magnet motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011584008.9A CN112688512B (en) | 2020-12-29 | 2020-12-29 | Electromagnetic load separation type axial magnetic field permanent magnet motor |
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| Publication Number | Publication Date |
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| CN112688512A true CN112688512A (en) | 2021-04-20 |
| CN112688512B CN112688512B (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011584008.9A Active CN112688512B (en) | 2020-12-29 | 2020-12-29 | Electromagnetic load separation type axial magnetic field permanent magnet motor |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008199811A (en) * | 2007-02-14 | 2008-08-28 | Daikin Ind Ltd | Rotating electrical machine |
| CN101621234A (en) * | 2009-08-06 | 2010-01-06 | 东南大学 | Magnetic flow switching type axial magnetic field magnetoelectric machine with middle stator structure |
| CN107294325A (en) * | 2017-06-28 | 2017-10-24 | 华中科技大学 | A kind of subregion stator disc type double salient-pole electric machine |
| CN107508444A (en) * | 2017-10-23 | 2017-12-22 | 史立伟 | Electric automobile magnetic-grid-type doubly salient permanent magnet motor |
| CN107579639A (en) * | 2017-10-23 | 2018-01-12 | 史立伟 | A kind of high temperature resistant permanent-magnet servo motor |
| CN107579640A (en) * | 2017-10-23 | 2018-01-12 | 史立伟 | A kind of permanent-magnet wind power motor of low rotor inertia |
-
2020
- 2020-12-29 CN CN202011584008.9A patent/CN112688512B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008199811A (en) * | 2007-02-14 | 2008-08-28 | Daikin Ind Ltd | Rotating electrical machine |
| CN101621234A (en) * | 2009-08-06 | 2010-01-06 | 东南大学 | Magnetic flow switching type axial magnetic field magnetoelectric machine with middle stator structure |
| CN107294325A (en) * | 2017-06-28 | 2017-10-24 | 华中科技大学 | A kind of subregion stator disc type double salient-pole electric machine |
| CN107508444A (en) * | 2017-10-23 | 2017-12-22 | 史立伟 | Electric automobile magnetic-grid-type doubly salient permanent magnet motor |
| CN107579639A (en) * | 2017-10-23 | 2018-01-12 | 史立伟 | A kind of high temperature resistant permanent-magnet servo motor |
| CN107579640A (en) * | 2017-10-23 | 2018-01-12 | 史立伟 | A kind of permanent-magnet wind power motor of low rotor inertia |
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| Publication number | Publication date |
|---|---|
| CN112688512B (en) | 2021-12-21 |
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