CN201656590U - Small-sized direct-drive vertical axis permanent magnet synchronous wind turbine - Google Patents
Small-sized direct-drive vertical axis permanent magnet synchronous wind turbine Download PDFInfo
- Publication number
- CN201656590U CN201656590U CN2010201649577U CN201020164957U CN201656590U CN 201656590 U CN201656590 U CN 201656590U CN 2010201649577 U CN2010201649577 U CN 2010201649577U CN 201020164957 U CN201020164957 U CN 201020164957U CN 201656590 U CN201656590 U CN 201656590U
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- permanent magnet
- vertical axis
- stator
- rotor
- drive vertical
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Abstract
The utility model discloses a small-sized direct-drive vertical axis permanent magnet synchronous wind turbine, belonging to the field of wind turbines. The traditional small-sized vertical axis permanent magnet synchronous wind turbine has the disadvantages of slow rotational speed, little pole number, larger starting load torque and low frequency and has poor matching ability with a wind wheel. The small-sized direct-drive vertical axis permanent magnet synchronous wind turbine comprises a stator, a rotor, a back end cover, a front end cover, an upper bearing and a lower bearing and is characterized in that an iron core of the stator is in a chute structure, a stator winding adopts a double layer short distance fractional slot winding with the slot amount q per pole and per phase of smaller than 1, the rotor adopts a radial tile-shaped Nd-Fe-B permanent magnet rotator magnetic circuit structure with a multipolar surface, an outer cylindrical surface of a rotary cylinder is provided with shallow slots which have the same amount with poles, magnetic steels are fixedly installed in the shallow slots, a rotary shaft is provided with a shaft extension end to penetrate through the front end cover, and the shaft extension end is corresponding to the installation position of the wind wheel. The utility model simplifies the structure of a generator set, improves electric potential waveform of a generator, is rapid to start and enhances the performance of the generator and the utilization efficiency of the wind energy.
Description
Technical field
The utility model belongs to the wind-driven generator field, and is especially relevant with a kind of miniature direct-drive vertical axis permanent magnet synchro wind generator.
Background technology
Wind-driven generator is common alternating current asynchronous generator, double-fed asynchronous generator and magneto alternator.The minitype permanent magnetism synchro wind generator divides two kinds of trunnion axis (horizontal) and vertical axises (vertical) by pattern is installed, by whether adapted gearbox branch directly drives two kinds of (wind wheel directly drives) and non-direct drives (adapted gearbox).At present, small-sized vertical axis permanent magnet synchro wind generator mostly adopts the built-in rotor magnetic structure, and rotating speed is lower, number of poles is less, the starting resistive torque is big, frequency is very low, and poor with the wind wheel matching.
The utility model content
The purpose of this utility model will overcome exactly that existing small-sized vertical axis permanent magnet synchro wind generator rotating speed is lower, number of poles is less, the starting resistive torque is big, frequency is very low, and with the defective of wind wheel matching difference, provide a kind of simple in structure, reliable, efficient is high, with the good miniature direct-drive vertical axis permanent magnet synchro wind generator of wind wheel matching.For this reason, the utility model is by the following technical solutions:
A kind of miniature direct-drive vertical axis permanent magnet synchro wind generator, comprise stator, rotor, rear end cap, front end housing and last, following two bearings, stator is by casing, the band winding stator core that is installed in the casing is formed, rear end cap and front end housing are installed on the casing two ends, lower bearing is installed on rear end cap, upper bearing (metal) is installed on front end housing, rotor comprises rotating shaft, magnet steel and fixed cover are loaded on the rotating cylinder of rotating shaft, rotating shaft is supported by upper bearing (metal) and lower bearing and is installed, it is characterized in that: described stator core adopts flume structure, to eliminate of the influence of slot ripples electromotive force to voltage waveform, stator winding adopts every extremely every phase groove to count the double-deck short distance fractional slot winding of q＜1, with the resistive torque that reduces to be produced by the generator slot effect, thereby reduces the generator starting resistive torque, make wind wheel when wind speed is low, can start rapidly, generating as early as possible; Described rotor adopts multipole radial surface tile shape Nd-Fe-B permanent magnet rotor magnetic circuit structural, described rotating cylinder external cylindrical surface is provided with the shallow slot with the number of poles equal number, described magnet steel is fixedly installed in described shallow slot, described rotating shaft is provided with the shaft extension end and passes described front end housing, the shaft extension end is corresponding with the installation site of wind wheel, wind wheel can directly mate with rotating shaft, has save parts such as gearbox and shaft coupling.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature:
It is 4/5 that described every extremely every phase groove is counted q.
Described lower bearing is an angular contact ball bearing.
Described rotor number of poles scope is 20～40.
Use the utility model can reach following beneficial effect:
1, stator adopts every extremely every phase groove to count the double-deck short distance fractional slot winding and the flume structure of q＜1, has improved the generator potential waveform, and starting is fast, has improved generator performance, the generating efficiency height.
2, alternator shaft and wind wheel directly mate, and have save parts such as gearbox and shaft coupling, have simplified generator unit structure, have improved Wind Power Utilization efficient.
Description of drawings
Fig. 1 is the cutaway view of the utility model master apparent direction.
Fig. 2 is the front view of the utility model rotor.
Fig. 3 is the vertical view of the utility model rotor.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
As Fig. 1～shown in Figure 3, the utility model comprises stator, rotor, rear end cap 11, front end housing 10, upper bearing (metal) 8 and lower bearing 9, rear end cap 11 is installed on casing 1 lower end, front end housing 10 is installed on casing 1 upper end, lower bearing 9 is installed on rear end cap 11, upper bearing (metal) 8 is installed on front end housing 10, stator is made up of casing 1, the band winding stator core 2 that is installed in the casing, stator core 2 adopts flume structure, embedding constitutes band winding stator cores around stator winding 3 in the skewed slot of stator core 2, and it is 4/5 double-deck short distance fractional slot winding that stator winding 3 adopts every extremely every phase groove to count q; Rotor adopts multipole radial surface tile shape Nd-Fe-B permanent magnet rotor magnetic circuit structural, comprise rotating shaft 5, magnet steel 7 and rotating cylinder 4, rotating shaft 5 is supported by upper bearing (metal) 8 and lower bearing 9 and is installed, rotating cylinder 4 is formed through hot investment casting by mild steel, it is set in rotating shaft 5, use key 6 to carry out the spacing fixedly suit that reaches of circumferencial direction, the external cylindrical surface of rotating cylinder 4 is provided with 20 shallow slots, shallow slot distributes along rotating cylinder external cylindrical surface circumferencial direction equispaced, shallow slot adopts Milling Process, magnet steel 7 is for tile shape and by screw or be fixed in structure glue in the shallow slot of rotating cylinder 4 external cylindrical surfaces and form 20 utmost points, magnetic steel material adopts moderate, magnetic energy product, remanent magnetism, the superpower magnet Nd-Fe-Bo permanent magnet material that coercive force is very high, rotating shaft 5 is provided with shaft extension end 12 and passes described front end housing 10, and shaft extension end 12 is corresponding with the installation site of wind wheel; Upper bearing (metal) 8 adopts the deep groove ball bearing of band sealing ring, and lower bearing 9 is an angular contact ball bearing.
In the technique scheme, stator winding 3 every extremely every phase grooves are counted q and can also be 3/4.Shallow slot quantity on the external cylindrical surface of rotating cylinder 4 can also be any even-integer bar between 30,36,40 or the like 20～40.
Claims (4)
1. miniature direct-drive vertical axis permanent magnet synchro wind generator, comprise stator, rotor, rear end cap (11), front end housing (10), upper bearing (metal) (8) and lower bearing (9), stator is by casing (1), the band winding stator core (2) that is installed in the casing is formed, rear end cap (11) and front end housing (10) are installed on casing (1) two ends, lower bearing (9) is installed on rear end cap (11), upper bearing (metal) (8) is installed on front end housing (10), rotor comprises rotating shaft (5), magnet steel (7) and fixed cover are loaded on the rotating cylinder (4) of rotating shaft, rotating shaft (5) is supported by upper bearing (metal) (8) and lower bearing (9) and is installed, it is characterized in that: described stator core (2) adopts flume structure, and stator winding (3) adopts every extremely every phase groove to count the double-deck short distance fractional slot winding of q＜1; Described rotor adopts multipole radial surface tile shape Nd-Fe-B permanent magnet rotor magnetic circuit structural, described rotating cylinder (4) external cylindrical surface is provided with the shallow slot with the number of poles equal number, described magnet steel (7) is fixedly installed in described shallow slot, described rotating shaft (5) is provided with shaft extension end (12) and passes described front end housing (10), and shaft extension end (12) is corresponding with the installation site of wind wheel.
2. a kind of miniature direct-drive vertical axis permanent magnet synchro wind generator according to claim 1 is characterized in that: it is 4/5 that described every extremely every phase groove is counted q.
3. a kind of miniature direct-drive vertical axis permanent magnet synchro wind generator according to claim 1 is characterized in that: described rotor number of poles scope is 20～40.
4. according to claim 1,2 or 3 described a kind of miniature direct-drive vertical axis permanent magnet synchro wind generators, it is characterized in that: described lower bearing (9) is an angular contact ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201649577U CN201656590U (en) | 2010-04-21 | 2010-04-21 | Small-sized direct-drive vertical axis permanent magnet synchronous wind turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201649577U CN201656590U (en) | 2010-04-21 | 2010-04-21 | Small-sized direct-drive vertical axis permanent magnet synchronous wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656590U true CN201656590U (en) | 2010-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201649577U Expired - Fee Related CN201656590U (en) | 2010-04-21 | 2010-04-21 | Small-sized direct-drive vertical axis permanent magnet synchronous wind turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656590U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518726A (en) * | 2019-08-27 | 2019-11-29 | 中国北方车辆研究所 | A kind of direct driving motor |
| CN111641248A (en) * | 2020-05-15 | 2020-09-08 | 杭州杰牌传动科技有限公司 | Self-charging device of gear box remote state monitoring system |
-
2010
- 2010-04-21 CN CN2010201649577U patent/CN201656590U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518726A (en) * | 2019-08-27 | 2019-11-29 | 中国北方车辆研究所 | A kind of direct driving motor |
| CN111641248A (en) * | 2020-05-15 | 2020-09-08 | 杭州杰牌传动科技有限公司 | Self-charging device of gear box remote state monitoring system |
| CN111641248B (en) * | 2020-05-15 | 2023-09-12 | 杭州杰牌传动科技有限公司 | Self-charging device of remote state monitoring system of gear box |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20170421 |