CN202696425U - Magnetic pole deviation permanent magnetic synchronous motor used for electric automobile - Google Patents
Magnetic pole deviation permanent magnetic synchronous motor used for electric automobile Download PDFInfo
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- CN202696425U CN202696425U CN2012203779911U CN201220377991U CN202696425U CN 202696425 U CN202696425 U CN 202696425U CN 2012203779911 U CN2012203779911 U CN 2012203779911U CN 201220377991 U CN201220377991 U CN 201220377991U CN 202696425 U CN202696425 U CN 202696425U
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- magnetic pole
- electric automobile
- rotor
- synchronous motor
- magnetic steel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a magnetic pole deviation permanent magnetic synchronous motor used for an electric automobile. The magnetic pole deviation permanent magnetic synchronous motor used for the electric automobile comprises a housing. Two ends of the housing are respectively equipped with a front end cover and a back end cover. A stator is installed inside the housing. A front bearing and a back rearing are respectively installed on the front end cover and the back end cover. A rotor shaft is installed between the front bearing and the back bearing. At least one rotor module is installed on the rotor shaft. The rotor module comprises a rotor iron core. A side face of the rotor iron core is equipped with a positioning magnetic steel. Two sides of the magnetic steel are respectively equipped with non-positioning magnetic steels. Magnetic poles of the positioning magnetic steel and the non-positioning magnetic steels have the deviation of 0.4 to 0.6 stator tooth space. Since the magnetic pole of the positioning steel has a certain deviation amount, through arranging the positioning magnetic steel, the magnetic pole deviation permanent magnetic synchronous motor used for the electric automobile can effectively reduce the torque pulsation, improves the stability in dragging a load, reduces the jitter amplitude, reduces the energy consumption of the motor, and can decrease the torque pulsation of the motor to 1/6 times, and therefore can improve the stationarity of the motor operation.
Description
Technical field
The utility model relates to a kind of permagnetic synchronous motor, specifically refers to the magnetic pole skew permagnetic synchronous motor for electric automobile.
Background technology
The existing motor that is applied on the electric automobile is divided into two kinds substantially, the first is for adopting asynchronous machine frequency conversion drive mode: the rotating speed of motor (rotor speed) is less than the rotating speed of rotating magnetic field, be asynchronous machine 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.
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, everyly obtain the generator of exciting current from other power supply, be 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 6000rpm, need to install gearbox additional equally, by adjusting the gear of gearbox, satisfy the demand under the different operating modes of car load.
In the process of electric machine rotation, instantaneous output torque constantly changes in time, but but change up and down around a certain mean value, this phenomenon just is referred to as torque pulsation, the words that torque pulsation is large, drag load, its stability is just low, in simple terms, is exactly that shake is very large, and having affected the stability of speed, energy consumption of electrical machinery increases.
The utility model content
The purpose of this utility model is to be provided for the magnetic pole skew permagnetic synchronous motor of electric automobile, 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 magnetic pole skew permagnetic synchronous motor that is used for electric automobile, comprise housing, be separately installed with front end housing and rear end cap at the housing two ends, in enclosure interior stator is installed, be separately installed with fore bearing and rear bearing at front end housing and rear end cap, between fore bearing and rear bearing, armature spindle is installed, a rotor module is installed on armature spindle at least, described rotor module comprises rotor core, rotor core is laminated by rotor punching and with the fixing cylinder-like structure that forms of rivet, a positioning magnetic steel is installed in the side of described rotor core, in the positioning magnetic steel both sides non-positioning magnetic steel is installed all, the magnetic pole of described positioning magnetic steel and non-positioning magnetic steel has the skew of 0.4～0.6 stator tooth distance.Rotor punching superposes and fixes formation rotor core cylindraceous with rivet, be provided with pilot hole on the axis of rotor core, be used for being sleeved on armature spindle, lateral wall at rotor core is equipped with a positioning magnetic steel, non-positioning magnetic steel then is installed on all the other positions, non-positioning magnetic steel is looped around the rotor core outside, and non-positioning magnetic steel and positioning magnetic steel are wrapped in its inside with rotor core; The magnetic pole of positioning magnetic steel has the skew of 0.4～0.6 teeth groove, after the magnetic pole skew, forms asymmetric magnetic circuit, and the torque pulsation that each magnetic pole produces mutually superposes and subdues, and torque pulsation can reduce at most 1/6 times.
Described positioning magnetic steel and non-positioning magnetic steel are fixed on the rotor core by the rotor retaining ring.
The magnetic pole side-play amount of described location positioning magnetic steel and non-positioning magnetic steel is 0.5 stator tooth distance.Further, as preferred magnetic pole side-play amount, can adopt 0.5 stator tooth distance, at this moment, according to above-mentioned calculating, can learn, the magnetic pole side-play amount be 0.5 stator tooth apart from the time, torque pulsation can reduce 1/6.
The forward horizontal stand ring that is sleeved on the armature spindle is installed between rotor module and front end housing, the back balance ring that is sleeved on the armature spindle is installed between rotor module and rear end cap.By at armature spindle forward horizontal stand ring and back balance ring being installed, between forward horizontal stand ring and back balance ring, rotor module is installed, forward horizontal stand ring and back balance ring can limit the axial motion of rotor module on armature spindle, and keep the dynamic balancing of armature spindle.
Described rotor module is at least two, and the spacer ring that is sleeved on the armature spindle is being installed between the rotor module.
The end of passing rear end cap at described armature spindle is equipped with position transducer.
The end of passing front end housing at described armature spindle is equipped with seal disc, and seal disc and front end housing consist of labyrinth seal structure.
The utility model compared with prior art has following advantage and beneficial effect:
1 the utility model is used for the magnetic pole skew permagnetic synchronous motor of electric automobile, by the rotor core in rotor module positioning magnetic steel is set, and there is certain side-play amount in the magnetic pole of positioning magnetic steel, can effectively reduce torque pulsation, when dragging load, improve its stability, reduce jitter amplitude, reduce the energy consumption of motor, can make the torque pulsation of motor be reduced to 1/6 times, thereby improved the stationarity of motor rotation;
2 the utility model are used for the magnetic pole skew permagnetic synchronous motor of electric automobile, by at armature spindle forward horizontal stand ring and back balance ring being installed, between forward horizontal stand ring and back balance ring, rotor module is installed, forward horizontal stand ring and back balance ring can limit the axial motion of rotor module on armature spindle, and keep the dynamic balancing of armature spindle;
3 the utility model are used for the magnetic pole skew permagnetic synchronous motor of electric automobile, can change the quantity of rotor module and the length of stator, thereby can the larger torque of output area, are conducive to speed governing.
Description of drawings
Fig. 1 is that the utility model partly cuts open structural representation;
Fig. 2 is the utility model rotor module assembling schematic diagram.
Mark and corresponding parts title in the accompanying drawing:
The 1-seal disc, 2-fore bearing, 3-front end housing, the 4-housing, 5-stator, 6-rear end cap, the 7-position transducer, 8-rear bearing, 9-armature spindle, 10-back balance ring, 11-rotor module, 12-spacer ring, 13-forward horizontal stand ring, 14-rivet, 15-positioning magnetic steel, the non-positioning magnetic steel of 16-, 17-rotor retaining ring, 18-rotor core.
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
Shown in Fig. 1 to 2, the utility model is used for the magnetic pole skew permagnetic synchronous motor of electric automobile, comprise housing 4, be separately installed with front end housing 3 and rear end cap 6 at housing 4 two ends, in housing 4 inside stator 5 is installed, be separately installed with fore bearing 2 and rear bearing 8 at front end housing 3 and rear end cap 6, between fore bearing 2 and rear bearing 8, armature spindle 9 is installed, at armature spindle 9 three rotor module 11 are installed, the forward horizontal stand ring 13 that is sleeved on the armature spindle 9 is installed between rotor module 11 and front end housing 3, the back balance ring 10 that is sleeved on the armature spindle 9 is installed between rotor module 11 and rear end cap 6; The spacer ring 12 that is sleeved on the armature spindle 9 is being installed between the rotor module 11; Armature spindle 9 passes front end housing 3 and rear end cap 6, in armature spindle 9 ends of passing front end housing 3 seal disc 1 is installed, and seal disc 1 consists of labyrinth seal structure with front end housing 3, in armature spindle 9 ends of passing rear end cap 6 position transducer 7 is housed; Wherein rotor module 11 comprises rotor core 18, and rotor core 18 is overrided to form by rotor punching and is fixing with rivet 14, is provided with the pilot hole that is connected for armature spindle at the axis of rotor core 18; Lateral wall at rotor core 18 is equipped with a positioning magnetic steel 15, and non-positioning magnetic steel 16 then is installed on all the other positions, and non-positioning magnetic steel 16 is looped around rotor core 18 outsides, and non-positioning magnetic steel 16 is wrapped in its inside with positioning magnetic steel 15 with rotor core 18; The magnetic pole of positioning magnetic steel 15 and non-positioning magnetic steel 16 has the skew of 0.4～0.6 stator tooth distance, selection as the best, the magnetic pole side-play amount of positioning magnetic steel 15 and non-positioning magnetic steel 16 is 0.5 stator tooth distance, and non-positioning magnetic steel 16 is fixed on the cylinder side wall of rotor core 18 by rotor retaining ring 17 with positioning magnetic steel 15.
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 (7)
1. the magnetic pole skew permagnetic synchronous motor that is used for electric automobile, comprise housing (4), be separately installed with front end housing (3) and rear end cap (6) at housing (4) two ends, in enclosure interior stator (5) is installed, be separately installed with fore bearing (2) and rear bearing (8) at front end housing (3) and rear end cap (6), between fore bearing (2) and rear bearing (8), armature spindle (9) is installed, a rotor module (11) is installed on armature spindle (9) at least, described rotor module (11) comprises rotor core (18), rotor core (18) is laminated by rotor punching and with the fixing cylinder-like structure that forms of rivet (14), it is characterized in that: in the side of described rotor core (13) positioning magnetic steel (15) is installed, in positioning magnetic steel (15) both sides non-positioning magnetic steel (16) is installed all, the magnetic pole of described positioning magnetic steel (15) and non-positioning magnetic steel (16) has the skew of 0.4～0.6 stator tooth distance.
2. the magnetic pole for electric automobile according to claim 1 is offset permagnetic synchronous motor, and it is characterized in that: described positioning magnetic steel (15) and non-positioning magnetic steel (16) are fixed on the rotor core by rotor retaining ring (17).
3. the magnetic pole for electric automobile according to claim 1 is offset permagnetic synchronous motor, and it is characterized in that: the magnetic pole side-play amount of described positioning magnetic steel (15) and non-positioning magnetic steel (16) is 0.5 stator tooth distance.
4. the described magnetic pole skew permagnetic synchronous motor for electric automobile of any one in 3 according to claim 1, it is characterized in that: the forward horizontal stand ring (13) that is sleeved on the armature spindle (9) is installed between rotor module (11) and front end housing (3), the back balance ring (10) that is sleeved on the armature spindle (9) is installed between rotor module (11) and rear end cap (6).
5. the described magnetic pole skew permagnetic synchronous motor for electric automobile of any one in 3 according to claim 1, it is characterized in that: described rotor module (11) is at least two, and the spacer ring (12) that is sleeved on the armature spindle (9) is being installed between the rotor module (11).
6. the described magnetic pole skew permagnetic synchronous motor for electric automobile of any one in 3 according to claim 1, it is characterized in that: the end of passing rear end cap (6) at described armature spindle (9) is equipped with position transducer (7).
7. the described magnetic pole skew permagnetic synchronous motor for electric automobile of any one in 3 according to claim 1, it is characterized in that: the end of passing front end housing (3) at described armature spindle (9) is equipped with seal disc (1), and seal disc (1) consists of labyrinth seal structure with front end housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203779911U CN202696425U (en) | 2012-07-31 | 2012-07-31 | Magnetic pole deviation permanent magnetic synchronous motor used for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203779911U CN202696425U (en) | 2012-07-31 | 2012-07-31 | Magnetic pole deviation permanent magnetic synchronous motor used for electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN202696425U true CN202696425U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203779911U Expired - Fee Related CN202696425U (en) | 2012-07-31 | 2012-07-31 | Magnetic pole deviation permanent magnetic synchronous motor used for electric automobile |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368346A (en) * | 2013-07-22 | 2013-10-23 | 成都联腾动力控制技术有限公司 | Permanent magnet synchronous modularization motor |
| CN107612199A (en) * | 2017-10-31 | 2018-01-19 | 天津昊野科技有限公司 | A kind of complete deep permagnetic synchronous motor in sea of built-in driving |
| CN109687669A (en) * | 2019-02-27 | 2019-04-26 | 川臻精密机械（苏州）有限公司 | A kind of mounting process of die-cutting device driving device |
| WO2023174359A1 (en) * | 2022-03-17 | 2023-09-21 | 北京雷蒙赛博核装备技术研究有限公司 | Electric valve, and alternating current asynchronous electric motor therefor |
-
2012
- 2012-07-31 CN CN2012203779911U patent/CN202696425U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368346A (en) * | 2013-07-22 | 2013-10-23 | 成都联腾动力控制技术有限公司 | Permanent magnet synchronous modularization motor |
| CN107612199A (en) * | 2017-10-31 | 2018-01-19 | 天津昊野科技有限公司 | A kind of complete deep permagnetic synchronous motor in sea of built-in driving |
| CN109687669A (en) * | 2019-02-27 | 2019-04-26 | 川臻精密机械（苏州）有限公司 | A kind of mounting process of die-cutting device driving device |
| WO2023174359A1 (en) * | 2022-03-17 | 2023-09-21 | 北京雷蒙赛博核装备技术研究有限公司 | Electric valve, and alternating current asynchronous electric motor therefor |
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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: 20130123 Termination date: 20210731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |