CN112688516A - Permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor - Google Patents
Permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor Download PDFInfo
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- CN112688516A CN112688516A CN202011585598.7A CN202011585598A CN112688516A CN 112688516 A CN112688516 A CN 112688516A CN 202011585598 A CN202011585598 A CN 202011585598A CN 112688516 A CN112688516 A CN 112688516A
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention relates to the field of permanent magnet motors with axial magnetic fields, in particular to a permanent magnet surface-mounted stator permanent magnet type permanent magnet motor with axial magnetic fields, which comprises a permanent magnet stator A, a rotor A, an armature stator, a rotor B and a permanent magnet stator B which are coaxially and sequentially arranged along the axial direction, wherein the permanent magnet stator A and the permanent magnet stator B respectively comprise back iron and high-coercivity permanent magnets, the rotor A and the rotor B respectively comprise a rotor core and a rotor bracket made of non-magnetic-conductive materials, and the armature stator comprises an armature stator core, an armature winding and two armature stator brackets made of non-magnetic-conductive materials. The permanent magnet and the armature winding of the permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor are positioned on different stators, and the permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor has the advantages of high torque density and modularized processing generation.
Description
Technical Field
The invention relates to the field of axial magnetic field permanent magnet motors, in particular to a permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor.
Background
The axial magnetic field permanent magnet synchronous motor has become a driving motor with strong competitiveness due to the advantages of small volume, light weight, high power, high efficiency and the like. However, most of the axial magnetic field permanent magnet motors adopt a rotor permanent magnet structure, and have the following main problems: 1) the permanent magnet is placed on a rotor which is difficult to radiate heat, and the permanent magnet can be irreversibly demagnetized due to high temperature, so that the performance of the motor is seriously influenced; 2) in order to overcome the centrifugal force during high-speed operation, a fixing device needs to be installed on the rotor.
In order to overcome the defects of a rotor permanent magnet type axial magnetic field permanent magnet motor, the prior art provides a stator permanent magnet type axial magnetic field permanent magnet synchronous motor scheme. Compared with a rotor permanent magnet type axial magnetic field permanent magnet motor, the stator permanent magnet type axial magnetic field permanent magnet synchronous motor has incomparable advantages in the aspects of heat dissipation and high speed. However, the electromagnetic loads of the existing stator permanent magnet type axial magnetic field permanent magnet synchronous motor are all located on the stator, the electromagnetic load conflict is serious, and the torque density of the motor is restricted to be further improved. Therefore, in order to overcome the defects of the existing stator permanent magnet type axial magnetic field permanent magnet synchronous motor, a novel stator permanent magnet type axial magnetic field permanent magnet synchronous motor is developed, and the novel stator permanent magnet type axial magnetic field permanent magnet synchronous motor has important engineering application value for further improving the torque density of the motor.
Disclosure of Invention
The invention aims to provide a permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor, wherein permanent magnets and armature windings of the permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor are positioned on different stators, so that the design freedom degree of electromagnetic load is increased, and the torque density of the motor is further improved.
The technical scheme of the invention is as follows: the utility model provides a permanent magnetism surface mounting type stator permanent magnetism type axial magnetic field permanent-magnet machine, includes along the coaxial permanent-magnet stator A that sets gradually of axial, rotor A, armature stator, rotor B, permanent-magnet stator A and permanent-magnet stator B all include back iron, high coercivity permanent magnet, rotor A and rotor B all include rotor core and the rotor support of being made by non-magnetic material, armature stator includes armature stator core, armature winding and two armature stator supports of being made by non-magnetic material.
Further, the back iron is in an annular cylinder shape, the high-coercivity permanent magnets are bonded on the back iron and close to one side of the rotor, and the adjacent high-coercivity permanent magnets are sequentially and alternately placed according to polarities.
Further, the permanent magnet stator A and the permanent magnet stator B are completely identical and are symmetrically arranged.
Furthermore, the rotor support is of a circular disc-shaped structure, a plurality of rotor core slots are uniformly formed in the rotor support along the circumferential direction, and the rotor cores are arranged in the rotor core slots.
Further, the rotor A and the rotor B are identical and are symmetrically arranged.
Furthermore, the armature stator supports are all in a circular ring disc-shaped structure, a plurality of armature stator slots are uniformly formed in the two armature stator supports, and two side faces of the armature stator core are correspondingly embedded into the armature stator slots of the two armature stator supports.
Furthermore, the armature stator core comprises a stator yoke and stator teeth, the stator teeth face to the rotors on two sides and are correspondingly embedded into armature stator slots of the two armature stator supports, and the armature windings adopt concentrated windings and are respectively wound on the stator yoke of the armature stator in turns.
Further, the radial section of the armature stator core is fan-shaped, and the axial section is H-shaped.
Compared with the prior art, the invention has the following advantages: the permanent magnet and the armature winding of the permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor are positioned on different stators, so that the space conflict among electromagnetic loads of the existing permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor is solved, the torque density of the motor is improved, the armature stator, the permanent magnet stator and the rotor of the motor can be processed in a modularization mode, and the difficulty and the cost of a production and processing process are reduced.
Drawings
Fig. 1 is an exploded view of the present invention.
FIG. 2 is a permanent magnet distribution diagram of permanent magnet stator A and permanent magnet stator B of the present invention;
fig. 3 is a structural view of a back core of a permanent magnet stator a and a permanent magnet stator B of the present invention;
fig. 4 is a structural view of a stator core of an armature stator of the present invention;
fig. 5 is a structural view of an armature stator core of the present invention embedded in an armature winding;
in the figure: 1-permanent magnet stator A2-rotor A3-armature stator 4-rotor B5-permanent magnet stator B11-back iron 12-high-coercivity permanent magnet 21-rotor core 22-rotor support 31-armature stator core 311-stator yoke 312-stator teeth 32-armature windings 33-armature stator support.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to fig. 1 to 5
The utility model provides a permanent-magnet surface-mounted stator permanent-magnet type axial magnetic field permanent-magnet machine, includes along the coaxial permanent-magnet stator A1, rotor A2, armature stator 3, rotor B4, the permanent-magnet stator B5 that sets gradually of axial, permanent-magnet stator A and permanent-magnet stator B all include back iron 11, high coercivity permanent magnet 12, rotor A and rotor B all include rotor core 21 and the rotor support 22 of being made by non-magnetic material, armature stator includes armature stator core 31, armature winding 32 and two armature stator supports 33 of being made by non-magnetic material.
In this embodiment, the back iron is an annular cylinder, the high coercive force permanent magnet is made of NdFeB material, the high coercive force permanent magnet is bonded to the back iron through a bonding material and is close to one side of the rotor, and adjacent high coercive force permanent magnets are alternately arranged in sequence according to polarity.
In this embodiment, the permanent magnet stator a and the permanent magnet stator B are completely the same and are symmetrically arranged. The number of the high-coercivity permanent magnets of the permanent magnet stator A and the permanent magnet stator B is 12 respectively.
In this embodiment, the rotor support is in a circular disc-shaped structure, a plurality of rotor core slots are uniformly formed in the rotor support along the circumferential direction, and the rotor cores are arranged in the rotor core slots.
In this embodiment, the rotor a and the rotor B are identical and symmetrically disposed.
In this embodiment, the armature stator supports are all circular disc-shaped structures, and a plurality of armature stator slots are uniformly formed on the two armature stator supports. The radial section of the armature stator core is fan-shaped, the axial section of the armature stator core is H-shaped, the armature stator core comprises a stator yoke 311 and stator teeth 312, the stator teeth face to the rotors on two sides, and the stator teeth on two sides of the armature stator core are correspondingly embedded into armature stator slots of two armature stator supports.
In this embodiment, the armature windings are concentrated windings and are respectively wound on the stator yoke of the armature stator.
In this embodiment, the number of armature stator cores of the armature stator is 12, that is, the number of stator teeth on both sides of the armature stator is 24, and the number of armature windings is 12.
It will be apparent to those skilled in the art that the above-described embodiments of the present invention are merely preferred embodiments of the present invention, and it would be within the scope of the present invention to devise various arrangements of permanent magnet surface mount stator permanent magnet axial field permanent magnet machines without the exercise of inventive skill based on the teachings of the present invention and without departing from the spirit and scope of the present invention.
Claims (8)
1. The permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor is characterized by comprising a permanent magnet stator A, a rotor A, an armature stator, a rotor B and a permanent magnet stator B which are coaxially and sequentially arranged along the axial direction, wherein the permanent magnet stator A and the permanent magnet stator B respectively comprise back iron and a high-coercivity permanent magnet, the rotor A and the rotor B respectively comprise a rotor core and a rotor support made of non-magnetic materials, and the armature stator comprises an armature stator core, an armature winding and two armature stator supports made of the non-magnetic materials.
2. The permanent magnet surface-mounted stator permanent magnet type axial field permanent magnet motor according to claim 1, wherein said back iron is in a shape of an annular cylinder, said high coercive force permanent magnets are bonded to the back iron on a side close to the rotor, and adjacent high coercive force permanent magnets are alternately arranged in order of polarity.
3. The permanent magnet surface-mount stator permanent magnet type axial field permanent magnet motor according to claim 1, wherein the permanent magnet stator a and the permanent magnet stator B are identical and symmetrically disposed.
4. The permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor according to claim 1, wherein the rotor frame has a circular disk-shaped structure, the rotor frame is provided with a plurality of rotor core slots uniformly along a circumferential direction, and the rotor core is disposed in the rotor core slots.
5. The permanent magnet surface-mount stator permanent magnet type axial field permanent magnet machine of claim 1, 2 or 4, wherein said rotor a and rotor B are identical and symmetrically arranged.
6. The permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor according to claim 1, 2 or 4, wherein the armature stator brackets are all in a circular disc-shaped structure, a plurality of armature stator slots are uniformly formed in the two armature stator brackets, and two side surfaces of the armature stator core are correspondingly embedded into the armature stator slots of the two armature stator brackets.
7. The permanent magnet surface-mounted stator permanent magnet type axial field permanent magnet motor according to claim 6, wherein the armature stator core comprises a stator yoke and stator teeth, the stator teeth face to the rotor on both sides and are correspondingly embedded into the armature stator slots of the two armature stator supports, and the armature windings adopt concentrated windings and are respectively wound on the stator yoke of the armature stator in turns.
8. The permanent magnet surface-mounted stator permanent magnet type axial field permanent magnet motor according to claim 6, wherein a radial cross section of said armature stator core is fan-shaped and an axial cross section is "H" shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011585598.7A CN112688516A (en) | 2020-12-29 | 2020-12-29 | Permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011585598.7A CN112688516A (en) | 2020-12-29 | 2020-12-29 | Permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor |
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| CN112688516A true CN112688516A (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011585598.7A Pending CN112688516A (en) | 2020-12-29 | 2020-12-29 | Permanent magnet surface-mounted stator permanent magnet type axial magnetic field permanent magnet motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922614A (en) * | 2021-09-16 | 2022-01-11 | 西安理工大学 | Fifteen-phase stator hybrid permanent magnet axial flux permanent magnet motor |
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|---|---|---|---|---|
| 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 |
| CN101662193A (en) * | 2009-09-30 | 2010-03-03 | 江西理工大学 | Two-rotor axial magnetic flux switching type mixed excitation synchronous generator |
| CN104682641A (en) * | 2015-03-04 | 2015-06-03 | 广东威灵电机制造有限公司 | Double-stator axial magnetic field motor |
| CN204578318U (en) * | 2015-05-05 | 2015-08-19 | 南京信息工程大学 | The axial magnetic field hybrid permanent magnet memory electrical machine that a kind of magnetic flux is controlled |
| CN105406669A (en) * | 2015-12-25 | 2016-03-16 | 华中科技大学 | Multi-air-gap axial magnetic flow-magnetic field modulation permanent magnet motor |
| CN105720765A (en) * | 2014-12-22 | 2016-06-29 | 铃木株式会社 | Axial gap type electrical rotation machine |
| CN106712450A (en) * | 2017-01-20 | 2017-05-24 | 哈尔滨工业大学 | Middle flux-adjustable type axial integrated electrical continuously variable transmission |
| CN108494197A (en) * | 2018-02-24 | 2018-09-04 | 西安理工大学 | One kind determining/rotor permanent magnet type change magnetic flux axial magnetic flux switching permanent magnet generator |
| CN109660097A (en) * | 2019-01-08 | 2019-04-19 | 南通大学 | A kind of novel adjustable magnetic axial magnetic flux switching Halbach motor |
| CN111064333A (en) * | 2020-02-18 | 2020-04-24 | 福州大学 | Axial magnetic field flux switching permanent magnet motor with adjustable effective permanent magnet poles |
-
2020
- 2020-12-29 CN CN202011585598.7A patent/CN112688516A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101662193A (en) * | 2009-09-30 | 2010-03-03 | 江西理工大学 | Two-rotor axial magnetic flux switching type mixed excitation synchronous generator |
| CN105720765A (en) * | 2014-12-22 | 2016-06-29 | 铃木株式会社 | Axial gap type electrical rotation machine |
| CN104682641A (en) * | 2015-03-04 | 2015-06-03 | 广东威灵电机制造有限公司 | Double-stator axial magnetic field motor |
| CN204578318U (en) * | 2015-05-05 | 2015-08-19 | 南京信息工程大学 | The axial magnetic field hybrid permanent magnet memory electrical machine that a kind of magnetic flux is controlled |
| CN105406669A (en) * | 2015-12-25 | 2016-03-16 | 华中科技大学 | Multi-air-gap axial magnetic flow-magnetic field modulation permanent magnet motor |
| CN106712450A (en) * | 2017-01-20 | 2017-05-24 | 哈尔滨工业大学 | Middle flux-adjustable type axial integrated electrical continuously variable transmission |
| CN108494197A (en) * | 2018-02-24 | 2018-09-04 | 西安理工大学 | One kind determining/rotor permanent magnet type change magnetic flux axial magnetic flux switching permanent magnet generator |
| CN109660097A (en) * | 2019-01-08 | 2019-04-19 | 南通大学 | A kind of novel adjustable magnetic axial magnetic flux switching Halbach motor |
| CN111064333A (en) * | 2020-02-18 | 2020-04-24 | 福州大学 | Axial magnetic field flux switching permanent magnet motor with adjustable effective permanent magnet poles |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922614A (en) * | 2021-09-16 | 2022-01-11 | 西安理工大学 | Fifteen-phase stator hybrid permanent magnet axial flux permanent magnet motor |
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Application publication date: 20210420 |