CN202206277U - Hub type synchronous motor excited by static permanent magnets - Google Patents
Hub type synchronous motor excited by static permanent magnets Download PDFInfo
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- CN202206277U CN202206277U CN2011203072766U CN201120307276U CN202206277U CN 202206277 U CN202206277 U CN 202206277U CN 2011203072766 U CN2011203072766 U CN 2011203072766U CN 201120307276 U CN201120307276 U CN 201120307276U CN 202206277 U CN202206277 U CN 202206277U
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model discloses a hub type synchronous motor excited by static permanent magnets. The motor has a hub type outer rotor structure and comprises a stator iron core 1, the permanent magnets 2, concentrated windings 3 and an outer-rotor iron core 4, wherein the inner circle of the stator iron core 1 is provided with 12 teeth grooves, and the width of the tooth top is 23 degrees. Two permanent magnets 2 with reverse polarities are attached on the surface of each stator tooth; the polarities of the adjacent permanent magnets 2 on the adjacent stator teeth are same. The concentrated winding 3 is arranged on each tooth of the stator; and the four concentrated windings 3 with 90 degrees are connected in series to form a phase. The polarities are arranged alternatively. 16 teeth grooves are uniformly arranged on the surface of the inner circle of the outer-rotor iron core 4, the width of the tooth top is 9 degrees, and inclined grooves with 5-7.5 degrees are adopted. The outer-rotor iron core and the inner-stator iron core are respectively made of lamination of silicon-steel sheets. In the system, the structure is simple, the operation is reliable and the maintenance is convenient.
Description
Technical field
The utility model relates to a kind of used for electric vehicle synchronous motor, relates in particular to a kind of hub-type synchronous motor of stationary permanent magnet excitation.
Background technology
Along with the shortage of petroleum resources and the raising of people's environmental consciousness, electric automobile receives the extensive attention of countries in the world, and drive motors is one of core component of electric automobile.The outstanding feature of electric motor car is frequent start-stop, acceleration and deceleration, rather than runs on steady operation under a certain constant speed.People have certain requirement to 1 time of electric motor car charging operating range with F-Zero, generally require the 50～100km that goes that charges, F-Zero 100km/h 1 time for the light-weight electric automobile.Reliability and price also are the problems that people relatively pay close attention to.The various drive motors that electric motor car at present uses respectively have advantage, and its disadvantageous one side is all arranged again simultaneously.
In the electric motor car early stage of development, adopt the conventional dc motor more.Along with the development of permanent magnetic material, permanent magnet direct current motor is also used to some extent.The advantage of DC motor is that controllability is good, but its weight is big, and efficient is low, expensive, and because the existence of brush and slip ring, maintenance workload is big, and reliability is low.Therefore, along with the development of power electronic device, alternating current machine is ripe gradually, and DC motor is replaced by alternating current motor gradually.
The AC permanent-magnet motor that with permagnetic synchronous motor and brushless DC motor is representative is used in electric automobiles with its low weight, this special advantage of high efficiency widely.This type motor also has its shortcoming, and permanent magnet is fixed on the rotor of high speed rotating, and is very high to manufacture process requirement, and the speed adjustable range of motor also is restricted in addition.Though switched reluctance machines is simple in structure, firm, efficient is high, during low speed very big torque can be provided, and activation configuration is simple, its shortcoming mainly is that vibration and noise are bigger.
The utility model content
The purpose of the utility model is exactly in order to address the above problem a kind of hub-type synchronous motor of stationary permanent magnet excitation to be provided, and it has good reliability, advantage easy to process.
To achieve these goals, the utility model adopts following technical scheme:
A kind of hub-type synchronous motor of stationary permanent magnet excitation; Motor is the hub-type outer-rotor structure; Said stator core in motor and outer rotor iron core are 12/16 electrode structure, promptly open 12 teeth groove on the stator core cylindrical, and the outer rotor iron core internal circular surfaces is opened 16 teeth groove; Each stator tooth top surface is pasted with opposite polarity two permanent magnets, and the adjacent permanent magnet polarity on the adjacent stators tooth is identical; Each tooth of stator core is provided with concentrated winding, and four concentrated windings in series at a distance of 90 ° constitute a phase, and alternating polarity is arranged.
Described permanent magnet is static, and the every utmost point magnetic flux on the stator is an alternation.
Said stator core tooth top width degree is 24 °; The outer rotor iron core addendum width is 9 °, adopts 5 °～7.5 ° skewed slot on the external rotor.
External rotor, stator core form by silicon steel plate stacking, do not have winding and permanent magnet on the external rotor.
The beneficial effect of this utility model is: the hub-type outer-rotor structure is suitable for the two-wheeled or the four-wheel drive of electric automobile; Permanent magnet is fixed in each stator tooth top surface; This structure has realized that stationary permanent magnet produces alternating flux, has improved stock utilization and power of motor density; External rotor is only formed by silicon steel plate stacking, is not provided with permanent magnet, and mechanical strength is high, is suitable for high speed rotating; The deceleration characteristic that motor is intrinsic makes it have good low-speed characteristic; External rotor adopts skewed slot to make the torque pulsation of motor less.
Description of drawings
Fig. 1 is the motor stator core signal.
Fig. 2 is motor stator core, outer rotor iron core sketch map.
When Fig. 3 is supply frequency 130Hz, electric moter voltage waveform and Harmonic Distribution.
When Fig. 4 is supply frequency 130Hz, motor current waveform and Harmonic Distribution.
1. stator core, 2. permanent magnet is 3. concentrated winding, 4. outer rotor iron core.
Embodiment
Fig. 1, the hub-type synchronous motor of a kind of stationary permanent magnet excitation of Fig. 2, motor are the hub-type outer-rotor structure, it comprises stator core 1, permanent magnet 2, concentrates winding 3 and outer rotor iron core 4.Open 12 teeth groove on the circle in the stator core 1, addendum width is 24 °.Each stator tooth top surface is pasted with opposite polarity two permanent magnets 2, and adjacent permanent magnet 2 polarity on the adjacent stators tooth are identical.Stator core 1 each tooth is provided with concentrates 3, four concentrated winding 3 series connection at a distance of 90 ° of winding to constitute a phase, and alternating polarity is arranged.Outer rotor iron core 4 internal circular surfaces are evenly opened 16 teeth groove, and outer rotor iron core 4 addendum widths are 9 °, adopt 5 °～7.5 ° skewed slot on the external rotor.
Outer rotor iron core 4, stator core 1 form by silicon steel plate stacking.
Working method: motor is given motor by DC power supply through inverter output three-phase PWM voltage.
Model machine rated value: rated power P
N=2.2kW, rated efficiency η
N=86%, rated speed n
N=490r/min, maximum speed 1500r/min, rated voltage U
N=96V (direct current).
Model machine key dimension: diameter of stator bore 60mm, stator outer diameter 160mm, the thick 20.5mm of stator yoke, 24 ° of stator tooth top widths; External rotor internal diameter 161mm; External rotor external diameter 200mm, the thick 10mm of external rotor yoke, 9 ° of the external rotor facewidth; Core length 100mm; Permanent magnet thickness 2.5mm; Air gap 0.5mm.
Motor voltage, current waveform and Harmonic Distribution such as Fig. 3, shown in Figure 4 when supply frequency is 130Hz no-load running.
Though the above-mentioned accompanying drawing that combines is described the embodiment of the utility model; But be not restriction to the utility model protection range; One of ordinary skill in the art should be understood that; On the basis of the technical scheme of the utility model, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection range of the utility model.
Claims (2)
1. the hub-type synchronous motor of a stationary permanent magnet excitation; It is characterized in that: motor is the hub-type outer-rotor structure; Said stator core in motor and outer rotor iron core are 12/16 electrode structure, promptly open 12 teeth groove on the stator core cylindrical, and the outer rotor iron core internal circular surfaces is opened 16 teeth groove; Each stator tooth top surface is pasted with opposite polarity two permanent magnets, and the adjacent permanent magnet polarity on the adjacent stators tooth is identical; Each tooth of stator core is provided with concentrated winding, and four concentrated windings in series at a distance of 90 ° constitute a phase, and alternating polarity is arranged.
2. the hub-type synchronous motor of a kind of stationary permanent magnet excitation as claimed in claim 1 is characterized in that, stator core tooth top width degree is 24 °; The outer rotor iron core addendum width is 9 °, adopts 5 °～7.5 ° skewed slot on the external rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203072766U CN202206277U (en) | 2011-08-23 | 2011-08-23 | Hub type synchronous motor excited by static permanent magnets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203072766U CN202206277U (en) | 2011-08-23 | 2011-08-23 | Hub type synchronous motor excited by static permanent magnets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202206277U true CN202206277U (en) | 2012-04-25 |
Family
ID=45970373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203072766U Expired - Fee Related CN202206277U (en) | 2011-08-23 | 2011-08-23 | Hub type synchronous motor excited by static permanent magnets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202206277U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299600A (en) * | 2011-08-23 | 2011-12-28 | 山东大学 | Stationary permanent magnet excitation hub-type synchronous motor |
| CN102638117A (en) * | 2012-05-17 | 2012-08-15 | 江建中 | Stator for magnetic gear compound motor with magnetic circuit separating structure |
| CN103997174A (en) * | 2014-06-11 | 2014-08-20 | 东南大学 | Rotor salient pole type hybrid excitation motor based on magnetic gear |
| CN107425688A (en) * | 2017-06-28 | 2017-12-01 | 华中科技大学 | A kind of permanent magnet is between stator poles and the double salient-pole electric machine of rotor interpolar |
| WO2019080611A1 (en) * | 2017-10-23 | 2019-05-02 | 史政齐 | Wheel-side motor for electric vehicle |
-
2011
- 2011-08-23 CN CN2011203072766U patent/CN202206277U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299600A (en) * | 2011-08-23 | 2011-12-28 | 山东大学 | Stationary permanent magnet excitation hub-type synchronous motor |
| CN102638117A (en) * | 2012-05-17 | 2012-08-15 | 江建中 | Stator for magnetic gear compound motor with magnetic circuit separating structure |
| CN102638117B (en) * | 2012-05-17 | 2018-01-16 | 江建中 | The stator of magnetic circuit isolating construction magnetic gear compound motor |
| CN103997174A (en) * | 2014-06-11 | 2014-08-20 | 东南大学 | Rotor salient pole type hybrid excitation motor based on magnetic gear |
| CN107425688A (en) * | 2017-06-28 | 2017-12-01 | 华中科技大学 | A kind of permanent magnet is between stator poles and the double salient-pole electric machine of rotor interpolar |
| WO2019080611A1 (en) * | 2017-10-23 | 2019-05-02 | 史政齐 | Wheel-side motor for electric vehicle |
| US11299031B2 (en) | 2017-10-23 | 2022-04-12 | Shandong University Of Technology | Wheel hub motor for electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20130823 |