CN215580843U - Combined motor and rotor system - Google Patents
Combined motor and rotor system Download PDFInfo
- Publication number
- CN215580843U CN215580843U CN202022587480.XU CN202022587480U CN215580843U CN 215580843 U CN215580843 U CN 215580843U CN 202022587480 U CN202022587480 U CN 202022587480U CN 215580843 U CN215580843 U CN 215580843U
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- axial magnetic
- rotor
- field part
- radial
- 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.)
- Active
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A combined motor comprises a rotating shaft, an axial magnetic field part, a radial magnetic field part and a motor shell, wherein the rotating shaft penetrates through the axial magnetic field part and the radial magnetic field part; the motor shell is arranged outside the axial magnetic field part and the radial magnetic field part. The combined motor has the advantages of compact structure, small volume, light weight and high torque density.
Description
Technical Field
The utility model belongs to the technical field of engines, and particularly relates to a combined motor and rotor system.
Background
The radial magnetic field motor is a motor widely used at present, the effective magnetic field direction of the radial magnetic field motor is radial, and the radial magnetic field motor works through the interaction of the radial magnetic field, namely the radial magnetic field motor is used as a generator to generate current or is used as a motor to output torque.
Its advantage is:
1. in terms of appearance, the radial dimension is small;
2. in terms of working form, the motor is suitable for an alternating current motor.
The axial dimension is large, the power device which is long in the axial direction is unfriendly for micro gas turbines and other power devices, and the overlong rotating shaft has high requirement on the coaxiality and is easy to generate vibration and damage equipment.
The air gap magnetic flux direction of the axial magnetic field motor is axial, the current-carrying conductor is arranged in radial direction, and the stator and the rotor iron core are in disc type structures. The stator core of the axial magnetic field motor is shaped like a hollow cylinder, and a certain number of grooves are formed in one or two end faces in the radial direction and used for embedding conductive copper wires. The stator core is generally made of a silicon steel sheet or other soft magnetic material with magnetic and electric conduction. The air gap of the axial magnetic field motor is a plane type, and the air gap magnetic field is axial, so the axial magnetic field motor is also called a disk motor and is also called a disk motor.
Axial field motors can be made relatively thin, i.e. small in axial dimension, but require a larger radial dimension.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: the defects of the prior art are overcome, and the combined motor and the rotor system are provided, so that the technical problems that the size layout of the existing motor is unreasonable and vibration is easy to generate can be solved.
The technical solution of the utility model is as follows: a combined motor comprises a rotating shaft, an axial magnetic field part, a radial magnetic field part and a motor shell, wherein the rotating shaft penetrates through the axial magnetic field part and the radial magnetic field part; the motor shell is arranged outside the axial magnetic field part and the radial magnetic field part.
Further, the axial magnetic field portion includes: an axial magnetic field part stator and an axial magnetic field part rotor; an air gap is formed between the axial magnetic field part stator and the axial magnetic field part rotor.
Further, the axial magnetic field part stator comprises an axial magnetic field part stator core and an axial magnetic field part stator winding;
the axial magnetic field part stator core is disc-shaped, a plurality of raised magnetic poles which are uniformly distributed in the circumferential direction are arranged on one side or two side disc surfaces of the disc surface of the axial magnetic field part stator core, and the magnetic poles are arranged on the disc surface of one side, close to the axial magnetic field part rotor, of the axial magnetic field part stator core;
the axial magnetic field part stator winding is wound on the magnetic pole, one end of the magnetic pole facing the axial magnetic field part rotor is provided with a blocking part, and the blocking part blocks and fixes the axial magnetic field part stator winding.
Further, the axial magnetic field part rotor comprises an axial magnetic field part rotor iron core and a permanent magnet;
the permanent magnet is fixedly connected with the axial magnetic field part rotor iron core and is positioned on one side of the axial magnetic field part rotor close to the axial magnetic field part stator;
an air gap is formed between the blocking part of the magnetic pole and the permanent magnet.
Further, the width of the air gap is 1-4 mm.
Further, the rotor core of the axial magnetic field part is connected with the rotating shaft.
Further, the radial magnetic field portion includes radial magnetic field stator and radial magnetic field rotor, and radial magnetic field rotor fixes in the pivot, is provided with axial magnetic field rotor magnetic core in the radial magnetic field rotor, and radial magnetic field stator cover is established in radial magnetic field rotor periphery, and radial magnetic field stator fixes in the motor housing.
A rotor system comprises the combined motor, a gas compressor, a turbine and a working shaft, wherein the working shaft sequentially penetrates through the gas compressor and the turbine, the gas compressor and the turbine are fixed with the working shaft, and the output end of a rotating shaft is connected with the input end of the working shaft through a coupler or integrally formed.
Further, the rotor system comprises at least two radial bearings, and the radial bearings are arranged on two sides of the axial magnetic field stator, two sides of the radial magnetic field stator and at least two positions between the gas compressor and the turbine.
Further, the radial bearing is a contact bearing or a non-contact bearing.
Compared with the prior art, the utility model has the advantages that:
1. the combined motor has the advantages of compact structure, small volume, light weight and high torque density.
2. According to the combined motor, the axial magnetic field part and the radial magnetic field part are arranged, so that the overall size structure of the motor is optimized, and the axial size distribution and the radial size distribution of the motor are reasonable.
3. The combined motor shortens the length of the rotating shaft, and has better stability when being used in occasions such as a micro gas turbine rotating at high speed and the like.
4. Compared with the traditional motor, the combined motor has higher power under the condition of the same size.
Drawings
Fig. 1 is a schematic structural view of a combined motor of the present invention;
FIG. 2 is a schematic view of the structure of the axial magnetic field portion of the combined motor of the present invention;
fig. 3 is a schematic structural view of a stator core of an axial magnetic field portion in the combined motor of the present invention;
fig. 4 is a schematic structural view of a rotor system having a combined motor according to the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, a combined motor includes a rotating shaft 100, an axial magnetic field portion 200, a radial magnetic field portion 300, and a motor housing 900, wherein the rotating shaft 100 passes through the axial magnetic field portion 200 and the radial magnetic field portion 300; the motor housing 900 is covered outside the axial magnetic field portion 200 and the radial magnetic field portion 300. The total power of the combined motor is the sum of the powers of the axial magnetic field part 200 and the radial magnetic field part 300.
The axial magnetic field portion 200 includes: an axial magnetic field part stator 210 and an axial magnetic field part rotor 220; an air gap 223 is formed between the axial field stator 210 and the axial field rotor 220.
The axial magnetic field portion stator 210 includes an axial magnetic field portion stator core 211 and an axial magnetic field portion stator winding 212; the axial magnetic field stator core 211 is disc-shaped, and a plurality of raised magnetic poles 213 are uniformly distributed in the circumferential direction on the disc surface of the axial magnetic field stator core 211, and the magnetic poles are arranged on the disc surface of the axial magnetic field rotor 220 side of the axial magnetic field stator core 211; the axial magnetic field stator winding 212 is wound around the magnetic pole 213, and a blocking portion 214 is formed at one end of the magnetic pole 213 facing the axial magnetic field rotor 220, and the blocking portion 214 blocks and fixes the axial magnetic field stator winding 212.
The axial magnetic field part rotor 220 includes an axial magnetic field part rotor core 221 and a permanent magnet 222; the permanent magnet 222 is fixedly connected to the axial magnetic field portion rotor core 221, and is located on one side of the axial magnetic field portion rotor 220 close to the axial magnetic field portion stator 210; the air gap 223 is formed between the blocking portion 214 of the pole 213 and the permanent magnet 222.
The axial magnetic field portion rotor core 221 is connected to the rotating shaft 100.
Radial magnetic field portion 300 includes radial magnetic field stator 310 and radial magnetic field rotor 320, radial magnetic field rotor 320 is fixed on the pivot 100, be provided with axial magnetic field rotor magnetic core 321 in the radial magnetic field rotor 320, radial magnetic field stator 310 cover is established in radial magnetic field rotor 320 periphery, radial magnetic field stator 310 is fixed in motor casing 900.
Preferably, the width of the air gap 223 is 1-4 mm.
The utility model provides a rotor system, includes combined motor, compressor 400, turbine 500, working shaft 600 passes in proper order compressor 400 and turbine 500, compressor 400 and turbine 500 are all fixed with working shaft 600, the output of pivot 100 passes through coupling joint or integrated into one piece with the input of working shaft 600.
Preferably, the rotor system comprises at least a first radial bearing 710 and a second radial bearing 720, the first radial bearing 710 and the second radial bearing 720 being on both sides of the axial magnetic field stator 210, on both sides of the radial magnetic field stator 310, 2 between the compressor 400 and the turbine 500.
Preferably, when the at least first radial bearing 710 and the second radial bearing 720 are disposed between the compressor 400 and the turbine 500, the stators of the at least first radial bearing 710 and the second radial bearing 720 are fixedly connected to the combustion engine stator 800.
Preferably, the at least first and second radial bearings 710 and 720 are contact bearings or non-contact bearings, and further preferably, the at least first and second radial bearings 710 and 720 are air bearings.
The bearings comprise at least two radial bearings, and the arrangement positions of the radial bearings can be arranged on two sides of the axial magnetic field stator, two sides of the radial magnetic field stator, and between the gas compressor and the turbine; the radial bearings are arranged at the at least two positions.
The bearing also comprises a thrust bearing, wherein the thrust bearing is arranged at least one position of the positions, and the thrust bearing and one radial bearing can be an integrated bearing or a split bearing.
Preferably, the combined motor and rotor system can be used for a micro gas turbine and used as a starting motor to provide power for the micro gas turbine and/or a generator to generate electricity, and further preferably, the combined motor is a starting integrated motor.
Further preferably, the combined motor casing functions as:
1) drive motor: in particular to a motor for an electric tool (comprising tools such as drilling, polishing, grinding, slotting, cutting, reaming and the like), a motor for household appliances (comprising a washing machine, an electric fan, a refrigerator, an air conditioner, a recorder, a video disc player, a dust collector, a camera, an electric hair drier, an electric shaver and the like) and a motor for other general small mechanical equipment (comprising various small machine tools, small machines, medical instruments, electronic instruments and the like).
2) Control motor: specifically, a stepping motor, a servo motor, and the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. A combined motor is characterized by comprising a rotating shaft, an axial magnetic field part, a radial magnetic field part and a motor shell, wherein the rotating shaft penetrates through the axial magnetic field part and the radial magnetic field part; the motor shell is covered outside the axial magnetic field part and the radial magnetic field part;
the axial magnetic field portion includes: an axial magnetic field part stator and an axial magnetic field part rotor; an air gap is formed between the axial magnetic field part stator and the axial magnetic field part rotor;
the axial magnetic field part stator comprises an axial magnetic field part stator core and an axial magnetic field part stator winding;
the axial magnetic field part stator core is disc-shaped, a plurality of raised magnetic poles which are uniformly distributed in the circumferential direction are arranged on one side or two side disc surfaces of the disc surface of the axial magnetic field part stator core, and the magnetic poles are arranged on the disc surface of one side, close to the axial magnetic field part rotor, of the axial magnetic field part stator core;
the axial magnetic field part stator winding is wound on the magnetic pole, one end of the magnetic pole facing the axial magnetic field part rotor is provided with a blocking part which blocks and fixes the axial magnetic field part stator winding;
the axial magnetic field part rotor comprises an axial magnetic field part rotor iron core and a permanent magnet;
the permanent magnet is fixedly connected with the axial magnetic field part rotor iron core and is positioned on one side of the axial magnetic field part rotor close to the axial magnetic field part stator;
an air gap is formed between the blocking part of the magnetic pole and the permanent magnet.
2. A combined machine according to claim 1, characterised in that the width of the air gap is 1-4 mm.
3. The combined motor of claim 1, wherein the axial field portion rotor core is coupled to the rotating shaft.
4. The combined motor of claim 1, wherein the radial magnetic field portion comprises a radial magnetic field stator and a radial magnetic field rotor, the radial magnetic field rotor is fixed on the rotating shaft, an axial magnetic field rotor magnetic core is arranged in the radial magnetic field rotor, the radial magnetic field stator is sleeved on the periphery of the radial magnetic field rotor, and the radial magnetic field stator is fixed in the motor shell.
5. A rotor system comprises the combined motor of any one of claims 1 to 4, a compressor, a turbine and a working shaft, wherein the working shaft sequentially penetrates through the compressor and the turbine, the compressor and the turbine are fixed with the working shaft, and the output end of the rotating shaft is connected with the input end of the working shaft through a coupling or integrally formed.
6. The rotor system of claim 5, comprising at least two radial bearings on at least two sides of the axial field stator, on two sides of the radial field stator, between the compressor and the turbine.
7. The rotor system of claim 6, wherein the radial bearing is a contact bearing or a non-contact bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022587480.XU CN215580843U (en) | 2020-11-11 | 2020-11-11 | Combined motor and rotor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022587480.XU CN215580843U (en) | 2020-11-11 | 2020-11-11 | Combined motor and rotor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215580843U true CN215580843U (en) | 2022-01-18 |
Family
ID=79814826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022587480.XU Active CN215580843U (en) | 2020-11-11 | 2020-11-11 | Combined motor and rotor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215580843U (en) |
-
2020
- 2020-11-11 CN CN202022587480.XU patent/CN215580843U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Rahman et al. | Super high speed electrical machines-summary | |
| JP4311643B2 (en) | Method for manufacturing permanent magnet type rotating electric machine and method for manufacturing permanent magnet type synchronous generator for wind power generation | |
| Du et al. | Effects of design parameters on the multiphysics performance of high-speed permanent magnet machines | |
| US20080129129A1 (en) | Permanent magnet electrical rotating machine, wind power generating system, and a method of magnetizing a permanent magnet | |
| Hwang et al. | Optimal design of a high speed SPM motor for machine tool applications | |
| Fengxiang et al. | Design considerations of high-speed PM generators for micro turbines | |
| CN202034877U (en) | Built-in permanent-magnetic rotor high-speed motor | |
| Wang et al. | Design features of high speed PM machines | |
| Neethu et al. | Performance comparison between PCB-stator and laminated-core-stator-based designs of axial flux permanent magnet motors for high-speed low-power applications | |
| CN101316057B (en) | High speed permanent magnet motor rotor | |
| CA3067531C (en) | Electrical machine | |
| Kai et al. | Design of novel spiral magnetic poles and axial-cooling structure of outer-rotor PM torque motor | |
| CN112383191B (en) | Self-fan cold axial flux motor with external centrifugal fan | |
| CN207304179U (en) | A kind of stator structure for weakening magneto vibration | |
| CN215580843U (en) | Combined motor and rotor system | |
| CN112953060A (en) | Outer rotor permanent magnet synchronous motor with radial-axial composite magnetic flux | |
| Lesani et al. | Design considerations of high speed axial flux permanent magnet generator with coreless stator | |
| Ibrahim et al. | A novel toroidal permanent magnet motor structure with high torque density and enhanced cooling | |
| CN114640231A (en) | Coreless high-power radial alternating current permanent magnet synchronous motor | |
| Li et al. | Assessment of high-speed multi-megawatt electric machines | |
| CN115411904A (en) | Permanent magnet motor | |
| CN111953109B (en) | Double-layer whole-distance winding axial magnetic field permanent magnet synchronous motor | |
| WO2005002023A1 (en) | Industrial motor assembly comprising a vented rotor shaft | |
| Mergiotti et al. | Design of a turbo-expander driven generator for energy recovery in automotive systems | |
| KR100902118B1 (en) | Motor for high-speed ratiotion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230517 Address after: 518063 10 Nanshan District Road, Gaoxin south, Nanshan District, Shenzhen, Guangdong. Patentee after: Liu Muhua Address before: 100176 room 1202a, 12 / F, block B, building 1, yard 19, Ronghua Middle Road, economic and Technological Development Zone, Daxing District, Beijing Patentee before: Jin Pu |