CN112564334A - Novel stator and rotor structure of high-speed permanent magnet synchronous motor - Google Patents
Novel stator and rotor structure of high-speed permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN112564334A CN112564334A CN202011499853.6A CN202011499853A CN112564334A CN 112564334 A CN112564334 A CN 112564334A CN 202011499853 A CN202011499853 A CN 202011499853A CN 112564334 A CN112564334 A CN 112564334A
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- motor
- permanent magnet
- stator
- rotor
- ventilation holes
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 17
- 238000004804 winding Methods 0.000 claims abstract description 15
- 238000009423 ventilation Methods 0.000 claims abstract description 13
- 230000005291 magnetic effect Effects 0.000 claims abstract description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 9
- 230000004907 flux Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
- H02K1/278—Surface mounted magnets; Inset magnets
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- 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
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/145—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having an annular armature coil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a stator and rotor structure of a novel high-speed permanent magnet synchronous motor, and belongs to the technical field of motor structures. The stator portion includes: a stator core, a stator winding; the rotor portion includes: a rotor core, a permanent magnet, and a vent hole; the motor stator part adopts a pestle-shaped groove structure, the bottom of the groove is embedded with a stator winding, and part of air gaps are reserved at the notch part; the stator winding adopts a duplex winding structure, so that the potential waveform can be effectively improved, and higher harmonics can be inhibited; the heat dissipation performance of the motor can be improved by the aid of the sharp end structure of the pestle-shaped groove; the motor rotor part is provided with a permanent magnet and a vent hole, the permanent magnet adopts an inner arc structure and is arranged in the rotor iron core, and the structure is favorable for improving the power density of the motor and improving the dynamic performance of the motor; the ventilation holes are symmetrical about the rotor core, so that magnetic flux at the aligned position is reduced, vibration and noise of the motor are reduced, and the ventilation holes are matched with the rotor slots to enable the motor to obtain good heat dissipation performance.
Description
Technical Field
The invention relates to a novel high-speed permanent magnet synchronous motor structure, and belongs to the technical field of motor structures.
Background
In recent years, high-speed permanent magnet synchronous motors are widely applied to various fields of industrial production and life, compared with traditional permanent magnet synchronous motors, the high-speed permanent magnet synchronous motors have the advantages of high power density, high efficiency, high reliability, easiness in control and the like, and are well favored by people.
Disclosure of Invention
The invention aims to provide a novel high-speed permanent magnet synchronous motor structure to solve the problems of heat dissipation and the like of a high-speed permanent magnet synchronous motor in a high-speed operation process.
In order to achieve the purpose, the invention adopts the following technical scheme: a high-speed permanent magnet synchronous motor structure, 6 utmost point 36 groove motors is proposed, and the stator body includes: a stator core, a stator winding; the stator core is of a punching sheet structure with a groove formed inside, the stator groove is divided into two parts, a winding is embedded at the bottom of the groove, and the stator winding is of a double-winding structure, so that the improvement of an electromotive force waveform, the inhibition of higher harmonics and the reduction of the loss and the heating of a motor are facilitated; the structure of the notch portion improves the heat dissipation performance of the motor.
As an improvement of the technical scheme, the rotor is in a mode of embedding the permanent magnet, when the permanent magnet runs at a high speed, the permanent magnet is easy to fall off from the surface of the rotor, the permanent magnet of the embedded permanent magnet synchronous motor is positioned in the rotor, a pole shoe made of ferromagnetic substances is arranged between the outer surface of the permanent magnet and the outer surface of the rotor, the permanent magnet synchronous motor can be guaranteed to run at a high speed, and the unique structure of the permanent magnet can guarantee that the motor has higher power density and reduce the loss of the motor.
As an improvement of the technical scheme, the rotor core is provided with symmetrical ventilation holes, and the symmetrical ventilation holes enhance the heat dissipation performance of the motor on one hand, reduce the magnetic flux at the aligned position on the other hand, and reduce the loss of the motor.
Through foretell novel high-speed PMSM can effectively improve high-speed PMSM heat dissipation problem, reduce the motor loss, make the motor obtain better performance.
Drawings
Fig. 1 is a schematic structural diagram of a high-speed permanent magnet synchronous motor of the invention.
Fig. 2 is a schematic view of a stator "pestle" slot configuration.
Fig. 3 is a schematic view of a rotor structure.
Shown in the figure: 1. a stator core; 2. a stator winding; 3. a rotating shaft; 4. A rotor core; 5 a permanent magnet; 6. a vent hole.
Detailed Description
The present invention will be further described with reference to specific embodiments in order to achieve an understandable effect of technical means, creation features, effects and requirements of the present invention.
Referring to the attached figure 1, the invention provides a novel high-speed permanent magnet synchronous motor, which is characterized in that: stator slot type, permanent magnet structure and mode of placement, stator ventilation hole.
The stator slot shape, see fig. 2, uses a unique "pestle" shaped slot with the bottom of the slot partially embedding the winding and the air gap of the slot portion matching with the ventilation holes of the rotor core to improve the heat dissipation performance of the motor.
The stator winding adopts the duplex winding structure, can effectively improve the electromotive force wave form, restraines the higher harmonic, reduces the loss and the heating of motor.
The permanent magnet adopts an inner arc structure to reduce the loss of the motor.
The ventilation holes are symmetrically arranged on the rotor iron core, and the magnetic flux at the aligned position can be changed through the symmetrical ventilation holes, so that the loss and vibration of the motor are reduced, the ventilation and heat dissipation performance of the motor is increased, and the heat dissipation of the motor is facilitated.
The present embodiments are merely exemplary of the present patent and do not limit the scope of the patent, and those skilled in the art may make modifications to the parts thereof without departing from the spirit and scope of the patent.
Claims (4)
1. A novel high-speed permanent magnet motor structure is characterized in that: the motor is a 6-pole 36-slot rotating magnetic pole type structure, the stator slots are of a pestle-shaped slot structure, the stator windings are of a double-winding structure, each permanent magnet is embedded in a rotor core through an inner arc structure, and ventilation holes are formed in the rotor core.
2. The new high speed permanent magnet synchronous machine of claim 1, wherein: the double windings are embedded at the bottom of the stator slot, an air gap is reserved at the slot opening, and the length ratio of the two parts is about 1.15: 1.
3. The new high speed permanent magnet synchronous machine of claim 1, wherein: 6 permanent magnets with the same structure, size and material are used, the mechanical angle of each permanent magnet is 50 degrees, and the permanent magnets are uniformly arranged in the rotor core.
4. The new high speed permanent magnet synchronous machine of claim 1, wherein: the rotor core is provided with 6 circular ventilation holes, the positions of the ventilation holes are symmetrical about the rotor core, and the diameter of the ventilation holes is 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011499853.6A CN112564334A (en) | 2020-12-18 | 2020-12-18 | Novel stator and rotor structure of high-speed permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011499853.6A CN112564334A (en) | 2020-12-18 | 2020-12-18 | Novel stator and rotor structure of high-speed permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112564334A true CN112564334A (en) | 2021-03-26 |
Family
ID=75063277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011499853.6A Pending CN112564334A (en) | 2020-12-18 | 2020-12-18 | Novel stator and rotor structure of high-speed permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112564334A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115001174A (en) * | 2022-07-22 | 2022-09-02 | 山东超同步智能装备有限公司 | High-speed asynchronous motor stator and motor with same |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000051413A (en) * | 1999-01-22 | 2000-08-16 | 윤종용 | Permanent magnet motor |
| US6717315B1 (en) * | 1999-12-13 | 2004-04-06 | Mitsubishi Denki Kabushiki Kaisha | Permanent magnet type motor and method of producing permanent magnet type motor |
| JP2005073444A (en) * | 2003-08-27 | 2005-03-17 | Matsushita Electric Ind Co Ltd | Permanent magnet rotary electric machine |
| WO2012119301A1 (en) * | 2011-03-07 | 2012-09-13 | 浙江博望科技发展有限公司 | Ferrite three-phase permanent magnet motor |
| CN206628906U (en) * | 2017-02-28 | 2017-11-10 | 上海申意汽车零部件有限公司 | Improve the generator stator of vehicle assembly of power output |
| CN107359711A (en) * | 2017-08-01 | 2017-11-17 | 江苏唯得电机科技有限公司 | A kind of improved motor rotor punching and stator punching |
| CN207353923U (en) * | 2017-11-14 | 2018-05-11 | 宜昌博远电子有限公司 | A kind of stator punching |
| CN108092426A (en) * | 2018-01-25 | 2018-05-29 | 博远机电（嘉兴）有限公司 | stator punching and stator core |
| CN207603418U (en) * | 2017-03-27 | 2018-07-10 | 精基科技有限公司 | A kind of stator core of ultrahigh speed permanent-magnet synchronous adjustable frequency motor |
| CN208608797U (en) * | 2018-08-30 | 2019-03-15 | 广东美芝精密制造有限公司 | Permanent magnet synchronous motor and compressor |
| CN213637238U (en) * | 2020-12-18 | 2021-07-06 | 哈尔滨理工大学 | Novel stator and rotor structure of high-speed permanent magnet synchronous motor |
-
2020
- 2020-12-18 CN CN202011499853.6A patent/CN112564334A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000051413A (en) * | 1999-01-22 | 2000-08-16 | 윤종용 | Permanent magnet motor |
| US6717315B1 (en) * | 1999-12-13 | 2004-04-06 | Mitsubishi Denki Kabushiki Kaisha | Permanent magnet type motor and method of producing permanent magnet type motor |
| JP2005073444A (en) * | 2003-08-27 | 2005-03-17 | Matsushita Electric Ind Co Ltd | Permanent magnet rotary electric machine |
| WO2012119301A1 (en) * | 2011-03-07 | 2012-09-13 | 浙江博望科技发展有限公司 | Ferrite three-phase permanent magnet motor |
| CN206628906U (en) * | 2017-02-28 | 2017-11-10 | 上海申意汽车零部件有限公司 | Improve the generator stator of vehicle assembly of power output |
| CN207603418U (en) * | 2017-03-27 | 2018-07-10 | 精基科技有限公司 | A kind of stator core of ultrahigh speed permanent-magnet synchronous adjustable frequency motor |
| CN107359711A (en) * | 2017-08-01 | 2017-11-17 | 江苏唯得电机科技有限公司 | A kind of improved motor rotor punching and stator punching |
| CN207353923U (en) * | 2017-11-14 | 2018-05-11 | 宜昌博远电子有限公司 | A kind of stator punching |
| CN108092426A (en) * | 2018-01-25 | 2018-05-29 | 博远机电（嘉兴）有限公司 | stator punching and stator core |
| CN208608797U (en) * | 2018-08-30 | 2019-03-15 | 广东美芝精密制造有限公司 | Permanent magnet synchronous motor and compressor |
| CN213637238U (en) * | 2020-12-18 | 2021-07-06 | 哈尔滨理工大学 | Novel stator and rotor structure of high-speed permanent magnet synchronous motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115001174A (en) * | 2022-07-22 | 2022-09-02 | 山东超同步智能装备有限公司 | High-speed asynchronous motor stator and motor with same |
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