CN203398965U - Low-rotating-speed low-noise PMSM - Google Patents
Low-rotating-speed low-noise PMSM Download PDFInfo
- Publication number
- CN203398965U CN203398965U CN201320406106.2U CN201320406106U CN203398965U CN 203398965 U CN203398965 U CN 203398965U CN 201320406106 U CN201320406106 U CN 201320406106U CN 203398965 U CN203398965 U CN 203398965U
- Authority
- CN
- China
- Prior art keywords
- coil
- rotor
- low
- magnetic poles
- noise
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a permanent magnet synchronous motor (PMSM), especially to a low-rotating-speed low-noise PMSM which comprises a housing and a main shaft and a rotor arranged in the housing. The rotor is fixedly mounted on the main shaft, and a plurality of magnetic poles are uniformly distributed on the circumference of the rotor. A stator core is fixedly mounted in the housing, and the stator core is provided with a plurality of coil grooves in uniform distribution. The coil grooves is provided with a plurality of stator coil capable of generating magnetic poles. The low-rotating-speed low-noise PMSM is characterized in that the number of the coils is a multiple of three, and the magnetic poles on the rotor is two less than inductive magnetic poles generated by coil grooves on the iron core. The motor is reasonable in structure, convenient for manufacture, reduced in tooth socket torque and low in noise, and can realize stable rotation under low rotating speed.
Description
Technical field
The utility model relates to a kind of motor, is a kind of slow-speed of revolution low noise permagnetic synchronous motor specifically.
Background technology
Existing permagnetic synchronous motor requires the number of poles of coil corresponding with permanent magnet magnetic number of poles when stator coil is set.In order to be stablized, level and smooth electric current, the common rotating speed of this motor is higher, and has more serious harmonic phenomena, operation noise is large.When the less rotating speed of the every extremely every phase groove number of stator of induction coil being set lower time, can there is more serious teeth groove reaction, during running, produce larger pulsating torque, make body produce serious vibration, noise improves.In special application fields such as submarine drivings, need a kind of slow-speed of revolution low noise permagnetic synchronous motor, so that stealthy and increase the service life.
Summary of the invention
The purpose of this utility model be to provide a kind of rational in infrastructure, be convenient to the slow-speed of revolution low noise permagnetic synchronous motor manufactured, to meet the demand of the fields such as military project to slow-speed of revolution low noise noise of permanent magnet synchronous motor.
In order to reach above object, the technical scheme that the utility model adopts is: this slow-speed of revolution low noise permagnetic synchronous motor comprises shell and main shaft is in the enclosure set, rotor, rotor is fixedly mounted on main shaft, on the circumference of rotor, be uniformly distributed a plurality of magnetic poles, be installed with in the enclosure stator core, on described stator core with a plurality of equally distributed coil grooves, in described coil groove, be provided with a plurality of stator coils that produce induction magnetic pole, it is characterized in that: the quantity of described stator coil is 3 multiple, few two of the quantity of the induction magnetic pole that epitrochanterian number of magnetic poles produces than the coil groove on stator core.
For example, described coil groove has 36, and stator coil quantity is 12, and epitrochanterian number of magnetic poles is 10.
The beneficial effects of the utility model are: coil groove and permanent magnet pole are uniformly distributed, rational in infrastructure, be convenient to manufacture, and cogging torque obviously reduces, and noise is low, can realize slow-speed of revolution smooth operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the utility model.
Fig. 2 is the deployed configuration schematic diagram of stator.
Fig. 3 is the deployed configuration schematic diagram of rotor and permanent magnet pole.
Embodiment
As shown in Figure 1, this slow-speed of revolution low noise permagnetic synchronous motor comprises shell 1 and is arranged on main shaft 2, the rotor 3 in shell 1, and rotor 3 is fixedly mounted on main shaft 2, can rotate with main shaft.On the circumference of rotor 3, be uniformly distributed a plurality of magnetic poles 6, in shell 1, be installed with stator core 4, on described stator core 4 with a plurality of equally distributed coil grooves 5, in described coil groove 5, be provided with a plurality of stator coils that produce induction magnetic pole, permanent magnet on rotor 3 produces a plurality of equally distributed magnetic poles, in the time of rotor 3 rotation, the magnetic line of force that a plurality of magnetic poles produce is cutting stator coil successively, thereby in stator coil, produces induction magnetic pole.
As shown in Figure 2 and Figure 3, the quantity of described stator coil is 3 multiple, few two of the quantity of the induction magnetic pole that the number of magnetic poles on rotor 3 produces than the coil groove 5 on stator core 4.
Take Fig. 2 Fig. 3 as example, and in the present embodiment, described coil groove 5 has 36, and stator coil quantity is 12, and the number of magnetic poles on rotor 3 is 10.
When coil is set, stator core 4 is divided into three sector regions, the coil groove of each district inclusion equal amount, in the coil groove in each region, be provided with three-phase coil, in Fig. 2, only drawn the wherein winding method of a phase coil a, the winding method of other two phase coil b, c is identical with a, and a coil groove successively just staggers.As shown in Figure 2, the setting of coil be take sector region as unit repeats to arrange, and the end that adopts a phase coil in Commutating connect ，Ji first area between each phase coil of adjacent area is connected with the head end of the b phase coil of adjacent second area; In second area, the end of b phase coil is connected with the head end of c phase coil in San region; In the rest may be inferred ，Ji first area, the end of b phase coil is connected with the head end of the c phase coil of adjacent second area; In second area, the end of c phase coil is connected with the head end of a phase coil in San region; In first area, the end of c phase coil is connected with the head end of a phase coil of adjacent second area; In second area, the end of a phase coil is connected with the head end of b phase coil in San region.
By forming 0 ° between each pole coil of same phase in the few utmost point Commutating connect mode ，Shi Ge of this rotor region---120 ° of phase differences that do not wait, the induced potential waveform forming after series connection becomes more approaching sine wave from rectangle.Again due to rotor magnetic pole and magnetic pole of the stator quantity not etc., each rotor magnetic pole is asynchronous with stator teeth groove, cogging torque obviously reduces, weakened the pulsating torque that teeth groove reaction produces, smooth running, is conducive to reduce operation noise, is also conducive to smooth operation under the slow-speed of revolution.
As further improvement of the utility model, can also adopt coil groove and the stator coil of greater number.The region that coil is set also can be divided into 6 or more.
Claims (1)
1. slow-speed of revolution low noise permagnetic synchronous motor, comprise shell (1) and be arranged on the main shaft (2) in shell (1), rotor (3), rotor (3) is fixedly mounted on main shaft (2), on the circumference of rotor (3), be uniformly distributed a plurality of magnetic poles, in shell (1), be installed with stator core (4), described stator core (4) is upper with a plurality of equally distributed coil grooves (5), in described coil groove (5), be provided with a plurality of stator coils that produce induction magnetic pole, it is characterized in that: the quantity of described stator coil is 3 multiple, few two of the quantity of the induction magnetic pole that the number of magnetic poles on rotor (3) produces than the coil groove (5) on stator core (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320406106.2U CN203398965U (en) | 2013-07-09 | 2013-07-09 | Low-rotating-speed low-noise PMSM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320406106.2U CN203398965U (en) | 2013-07-09 | 2013-07-09 | Low-rotating-speed low-noise PMSM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203398965U true CN203398965U (en) | 2014-01-15 |
Family
ID=49910463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320406106.2U Expired - Fee Related CN203398965U (en) | 2013-07-09 | 2013-07-09 | Low-rotating-speed low-noise PMSM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203398965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337939A (en) * | 2013-07-09 | 2013-10-02 | 青岛美华永磁电气科技有限公司 | Low-speed and low-noise permanent-magnet synchronous motor |
-
2013
- 2013-07-09 CN CN201320406106.2U patent/CN203398965U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337939A (en) * | 2013-07-09 | 2013-10-02 | 青岛美华永磁电气科技有限公司 | Low-speed and low-noise permanent-magnet synchronous motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203708044U (en) | Novel stator magneto type magnetic flux switching motor | |
| CN106602823A (en) | Double-claw-pole-stator magnetic gathering type vernier motor | |
| CN103219814A (en) | Asynchronous starting permanent magnet synchronous motor rotor based on permanent magnets with different residual magnetic densities | |
| CN103795159A (en) | Stator-rotor double-permanent-magnet-type-vernier motor | |
| CN202856575U (en) | Multilayer disk type flywheel energy storage device | |
| CN105846628A (en) | 30-slot 14-pole fractional-slot double-layer short-distance distribution winding 15-phase permanent magnet synchronous motor | |
| CN102545412A (en) | High-efficiency and large-torque disk type switching magnetoresistive motor | |
| CN104160600A (en) | Electromagnetic generator | |
| CN204465161U (en) | A kind of single-phase transverse flux machine | |
| CN102868246B (en) | High-capacity low-speed permanent-magnet wind-driven generator | |
| CN203398965U (en) | Low-rotating-speed low-noise PMSM | |
| CN109586440B (en) | Five-phase permanent magnet motor based on combined Halbach permanent magnet array | |
| CN103904855A (en) | Brushless harmonic excitation motor with initial self-starting capacity | |
| CN201122887Y (en) | Equal circle type single-phase winding of intermediate frequency permanent magnet generator | |
| CN105743308A (en) | High-power-density permanent magnet dual-stator brushless doubly-fed motor | |
| CN103618391B (en) | A kind of permanent magnet brushless electromotor of ten pole 12 grooves | |
| CN202565059U (en) | Permanent magnet direct-current drive motor winding applied to vehicle | |
| CN203708055U (en) | DC motor with induction power-generating function | |
| CN202353411U (en) | Explosion-proof type low-frequency permanent-magnet three-phase synchronous motor for mine | |
| CN202210714U (en) | Single-layered fractional slot winding structure for permanent magnet synchronous motor | |
| CN202586687U (en) | A Halbach permanent magnetic synchronous servo motor | |
| CN207251325U (en) | A kind of 9 groove centralization winding brushless direct current permanent magnet motor of 6 pole | |
| CN103337939A (en) | Low-speed and low-noise permanent-magnet synchronous motor | |
| CN111064300A (en) | 24-slot 10-pole three-phase motor winding structure and electric vehicle | |
| CN104753302A (en) | Low-cost permanent-magnet brushless direct-current motor for electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20150709 |
|
| EXPY | Termination of patent right or utility model |