CN202696314U - Rotor improvement structure of permanent magnet synchronous motor with wide speed regulation - Google Patents
Rotor improvement structure of permanent magnet synchronous motor with wide speed regulation Download PDFInfo
- Publication number
- CN202696314U CN202696314U CN 201220377829 CN201220377829U CN202696314U CN 202696314 U CN202696314 U CN 202696314U CN 201220377829 CN201220377829 CN 201220377829 CN 201220377829 U CN201220377829 U CN 201220377829U CN 202696314 U CN202696314 U CN 202696314U
- Authority
- CN
- China
- Prior art keywords
- rotor
- synchronous motor
- motor
- speed
- permanent magnet
- 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
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a rotor improvement structure of a permanent magnet synchronous motor with wide speed regulation. The rotor improvement structure comprises a rotor iron core, wherein the rotor iron core is formed by laminating silicon steel sheets and is fixed by rivets; the axial line of the rotor iron core is provided with an assembling hole connected with the rotor through a shaft; the rotor iron core is provided with multiple through holes which are parallel with the axial line of the rotor iron core; and a magnetic steel body is arranged inside each through hole. By optimizing the structure of the motor rotor and the magnetic path structure, the rotor improvement structure of the permanent magnet synchronous motor with the wide speed regulation, disclosed by the utility model, has the advantages of reducing intensity of an air-gap magnetic field, weakening magnetic resistance of the permanent magnet, and finally realizing the purposes of improving the highest rotating speed of the motor and increasing a speed regulation range of the motor, and enabling the constant power range of the permanent magnetic synchronous motor to be widened greatly.
Description
Technical field
The utility model relates to a kind of rotor structure of synchronous machine, and specifically the rotor of finger beam speed governing permagnetic synchronous motor improves structure.
Background technology
The existing motor that is applied on the electric automobile is divided into two kinds substantially, and the first is for adopting asynchronous machine frequency conversion drive mode: the rotating speed of motor (rotor speed) is asynchronous machine less than the rotating speed of rotating magnetic field thereby cry.It is identical with induction machine basically.s=(ns-n)/ns。S is revolutional slip, and ns is rotational speed of magnetic field, and n is rotor speed.Asynchronous machine is to be interacted by air-gap rotating magnetic field and rotor winding induced current to produce electromagnetic torque, thereby realize that energy converting between mechanical is a kind of alternating current machine of mechanical energy, asynchronous motor is divided into two kinds of forms according to rotor structure: squirrel-cage, wire wound asynchronous motor are arranged; Make the asynchronous machine of motor operation, because its rotor winding current is that induction produces, claim again induction motor.Torque is not enough when adopting asynchronous machine frequency conversion drive mode to have low speed, control precision is relatively poor, the frequency control scope is less, has larger difference with electric automobile low-speed big, high-revolving demand, simultaneously, the asynchronous machine operating efficiency is lower, can greatly reduce the continual mileage of car load; And the asynchronous machine volume and weight is larger, at vehicle difficulty is installed, and adopts the mode of variable frequency speed modulation of asynchronous motor, and generally about 3000rpm, maximum speed adopts the mode of nature cooling to the rated speed of asynchronous machine about 5000.Because moment of torsion is not enough during the asynchronous machine slow-speed of revolution, can not satisfy the instructions for use of vehicle low-speed big (starting, acceleration, climbing), and maximum speed can not satisfy the requirement of the max. speed of vehicle, therefore, asynchronous machine need to be used in conjunction with multi-speed gear box, could satisfy the demand of car load.When vehicle in starting, accelerate, during climbing, gearbox places low grade, this moment, the gearbox speed reducing ratio was large, the output of motor passes to wheel after slowing down through gearbox, satisfies the high pulling torque demand of vehicle; When vehicle when running at high speed, gearbox places top grade (speed ratio is less than 1), this moment, the output speed of motor passed to wheel after promoting through gearbox, satisfied the high speed demand of vehicle.
The second is for adopting permagnetic synchronous motor: synchronous generator need to have a D.C. magnetic field in order to realize the conversion of energy.And produce the direct current in this magnetic field, be called the exciting current of generator.According to the supply mode of exciting current, every generator that obtains exciting current from other power supply is called separately excited dynamo, from generator acquisition field power supply itself, then be called self-exciter.The permagnetic synchronous motor that adopts exists speed adjustable range narrower, can not satisfy the high-speed requirement of electric automobile, need to install the deficiency that gearbox satisfies the performance requirement of car load additional, after installing gearbox additional, overall structure is complicated, volume is larger, install inconvenient, and cost is higher, adopts the mode of permagnetic synchronous motor, and the rated speed of permagnetic synchronous motor is generally about 3000rpm, maximum speed is about 6000, need to install gearbox additional equally, by adjusting the gear of gearbox, satisfy the demand under the different operating modes of car load.
The utility model content
The purpose of this utility model is to provide the rotor of wide speed-regulation permanent-magnet synchronous motor to improve structure, is installed in the synchronous machine, solves the motor that is used at present electric automobile and has above problem.
The purpose of this utility model is achieved through the following technical solutions:
The rotor of wide speed-regulation permanent-magnet synchronous motor improves structure, comprise rotor core, rotor core is formed by silicon steel plate stacking and fixes with rivet, axis at rotor core is provided with the pilot hole that is connected for armature spindle, be provided with a plurality of through holes parallel with the axis of rotor core at described rotor core, in through hole inside magnet steel be installed.Rotor core is combined by the silicon steel sheet stack, compress by the silicon steel sheet of rivet with stack, fixing, be provided with a plurality of through holes parallel with the axis of rotor core at rotor core, in through hole inside magnet steel is installed, the mode of permanent magnet with respect to traditional permanent magnet machine rotor integral body, not only can improve the intensity of rotor core, and magnetic circuit is more rigorous, realistic application, that is: air-gap field, magnetic flux, magnetic field intensity etc. parameter can better be controlled and adjust, by optimizing structure and the magnetic structure of rotor, reduce air-gap field intensity, weaken permanent-magnet magnetic resistance, finally reach the maximum speed that improves motor, improve the purpose of the speed adjustable range of motor, so that the permanent power bracket of permagnetic synchronous motor is widened greatly, speed adjustable range can reach four times of base speed, integrates low rotation speed large torque and than advantages such as speed governing in Daheng's power bracket, has overcome the many disadvantages of at present existing motor thereby it is become.
Between the outside of described magnet steel and through-hole side wall, be filled with epoxy resin.
Be provided with the assembling bar that the keyway with armature spindle is complementary at described pilot hole sidewall.Further, by the assembling bar is set at pilot hole, the assembling bar matches with keyway on the armature spindle, has overcome rotor core in the course of the work with respect to the rotation of armature spindle circumferencial direction, has further increased moment of torsion.
The utility model compared with prior art has following advantage and beneficial effect:
The rotor of 1 the utility model wide speed-regulation permanent-magnet synchronous motor improves structure, be provided with a plurality of through holes parallel with the axis of rotor core at rotor core, in through hole inside magnet steel is installed, the mode of permanent magnet with respect to traditional permanent magnet machine rotor integral body, not only can improve the intensity of rotor core, and magnetic circuit is more rigorous, realistic application, the passage of magnetic circuit, magnetic flux, magnetic field intensity etc. parameter can better be controlled and adjust, by optimizing structure and the magnetic structure of rotor, reduce air-gap field intensity, weaken permanent-magnet magnetic resistance, finally reach the maximum speed that improves motor, improve the purpose of the speed adjustable range of motor, so that the permanent power bracket of permagnetic synchronous motor is widened greatly, speed adjustable range can reach four times of base speed, thereby it is become integrates low rotation speed large torque and than advantages such as speed governing in Daheng's power bracket, has overcome the many disadvantages of at present existing motor;
The rotor of 2 the utility model wide speed-regulation permanent-magnet synchronous motors improves structure, by the assembling bar is set at pilot hole, the assembling bar matches with keyway on the armature spindle, has overcome rotor core in the course of the work with respect to the rotation of armature spindle circumferencial direction, has further increased moment of torsion.
Description of drawings
Fig. 1 is the utility model assembling schematic diagram.
Mark and corresponding parts title in the accompanying drawing:
The 12-rivet, the 13-rotor core, the 14-magnet steel, the 15-through hole, 16-assembles bar.
Embodiment
The utility model is described in further detail below in conjunction with embodiment, but execution mode of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, the rotor of the utility model wide speed-regulation permanent-magnet synchronous motor improves structure, comprise rotor core 13, rotor core 13 is formed by silicon steel plate stacking and is fixing with rivet 12, axis at rotor core 13 is provided with the pilot hole that is connected for armature spindle, is provided with the assembling bar 16 that the keyway with armature spindle is complementary at the pilot hole sidewall; Be provided with a plurality of through holes parallel with the axis of rotor core 13 15 at rotor core 13, in through hole 15 inside magnet steel 14 be installed, between the outside of magnet steel 14 and through hole 15 sidewalls, be filled with epoxy resin.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, any simple modification, the equivalent variations on every foundation technical spirit of the present utility model above embodiment done all fall within the protection range of the present utility model.
Claims (3)
1. the rotor of wide speed-regulation permanent-magnet synchronous motor improves structure, comprise rotor core (13), rotor core (13) is formed by silicon steel plate stacking and is fixing with rivet (12), axis at rotor core (13) is provided with the pilot hole that is connected for armature spindle, it is characterized in that: be provided with a plurality of through holes (15) parallel with the axis of rotor core (13) at described rotor core (13), in through hole (15) inside magnet steel (14) be installed.
2. the rotor of wide speed-regulation permanent-magnet synchronous motor according to claim 1 improves structure, it is characterized in that: be filled with epoxy resin between the outside of described magnet steel (14) and through hole (15) sidewall.
3. the rotor of wide speed-regulation permanent-magnet synchronous motor according to claim 1 and 2 improves structure, it is characterized in that: be provided with the assembling bar (16) that the keyway with armature spindle is complementary at described pilot hole sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377829 CN202696314U (en) | 2012-07-31 | 2012-07-31 | Rotor improvement structure of permanent magnet synchronous motor with wide speed regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220377829 CN202696314U (en) | 2012-07-31 | 2012-07-31 | Rotor improvement structure of permanent magnet synchronous motor with wide speed regulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696314U true CN202696314U (en) | 2013-01-23 |
Family
ID=47551873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220377829 Expired - Fee Related CN202696314U (en) | 2012-07-31 | 2012-07-31 | Rotor improvement structure of permanent magnet synchronous motor with wide speed regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696314U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259352A (en) * | 2013-03-25 | 2013-08-21 | 杭州德沃仕电动科技有限公司 | Built-in type permanent magnet motor structure with movable magnetic steel |
| CN103580410A (en) * | 2012-07-31 | 2014-02-12 | 成都联腾动力控制技术有限公司 | Wide-range speed control permanent magnet synchronous motor used for electric vehicle |
-
2012
- 2012-07-31 CN CN 201220377829 patent/CN202696314U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580410A (en) * | 2012-07-31 | 2014-02-12 | 成都联腾动力控制技术有限公司 | Wide-range speed control permanent magnet synchronous motor used for electric vehicle |
| CN103259352A (en) * | 2013-03-25 | 2013-08-21 | 杭州德沃仕电动科技有限公司 | Built-in type permanent magnet motor structure with movable magnetic steel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103580410A (en) | Wide-range speed control permanent magnet synchronous motor used for electric vehicle | |
| CN101106308A (en) | Magnetic resistance four-port mechanical and electric energy converter | |
| CN105680652B (en) | A kind of torque actuated method of mixed magnetic circuit bimorph transducer weak magnetism speed expansion solid-rotor permanent-magnet synchronous motor | |
| CN201808440U (en) | Multiphase motor wheel driving system | |
| CN103904846B (en) | A kind of Hybrid Vehicle stator permanent magnetic type double-rotor machine structure | |
| CN102570753B (en) | Permanent magnet harmonic motor | |
| CN104201854A (en) | Electromagnetic structure of vehicular external-rotor radial-magnetic-field permanent magnet synchronous in-wheel motor | |
| CN202142938U (en) | Large-scale direct driving dial switch magnetic resistance wind driven generator and system thereof | |
| CN102545502A (en) | Dual-stator brushless double-fed motor | |
| CN103997174A (en) | Rotor salient pole type hybrid excitation motor based on magnetic gear | |
| CN105763009B (en) | Mixed magnetic circuit low harmony wave multiple stators weak magnetism speed expansion permagnetic synchronous motor and its method | |
| CN103580323A (en) | Rotor improvement structure of wide-range-timing permanent magnet synchronous motor | |
| CN207134963U (en) | Rare-earth permanent-magnet electric machine and compressor | |
| CN203722441U (en) | Birotor magnetic gear motor used for hybrid vehicle | |
| CN202435219U (en) | Brushless double-fed motor | |
| CN202696314U (en) | Rotor improvement structure of permanent magnet synchronous motor with wide speed regulation | |
| CN102545501A (en) | Axial dual-stator brushless double-fed motor | |
| CN101183804A (en) | Three-phase external rotor electric excitation biconvex pole wind power generator | |
| CN202696425U (en) | Magnetic pole deviation permanent magnetic synchronous motor used for electric automobile | |
| CN202679193U (en) | Electric automobile permanent magnet synchronous motor with wide speed regulation range | |
| CN202565053U (en) | Magnetic-field automatic accelerating permanent-magnet wind driven generator | |
| Liu et al. | Comparison of outer-rotor permanent magnet machines for in-wheel drives | |
| CN203313025U (en) | Direct-current brushless hub motor | |
| CN202435218U (en) | Axial brushless doubly-fed motor | |
| CN201466947U (en) | Permanent magnet large-torque hub motor of motorcycle |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20210731 |