CN201708669U - Small vertical-shaft permanent-magnet synchronous wind-driven generator - Google Patents
Small vertical-shaft permanent-magnet synchronous wind-driven generator Download PDFInfo
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- CN201708669U CN201708669U CN2010201736414U CN201020173641U CN201708669U CN 201708669 U CN201708669 U CN 201708669U CN 2010201736414 U CN2010201736414 U CN 2010201736414U CN 201020173641 U CN201020173641 U CN 201020173641U CN 201708669 U CN201708669 U CN 201708669U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
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Abstract
The utility model discloses a small vertical-shaft permanent-magnet synchronous wind-driven generator, and belongs to the technical field of wind power generation. The wind-driven generator comprises a stator, a rotor, a front end cover, a rear end cover and a vertical shaft, wherein the stator includes a casing, a stator iron core and a stator winding; the rotor comprises a rotor shaft and magnetic steel; the rotor shaft extends out of the front end cover, the rear end cover is positioned in a rear cover; the rotor further comprises a rotary drum; a plurality of channel slots are uniformly distributed on the outer edge of the rotary drum; tile-shaped magnetic steel is fixed on each channel slot; a slot on the stator iron core adopts a skewed slot with an inclined angle of 13 DEG to 14 DEG; and the vertical shaft and the rotor shaft adopt the same shaft. Due to the adoption of the technical scheme, the utilization degree of the magnetic steel is improved. The utility model has the advantages of simple structure and light weight, greatly reduces the cost, reduces the weight of a generating set, is free of maintenance of a speed increasing box, and reduces large labor intensity and installing conditions of the construction site during site installation.
Description
[technical field]
The utility model relates to a kind of small-sized vertical axis permanent magnet synchro wind generator, belongs to technical field of wind power generation.
[background technology]
Wind-powered electricity generation is the regenerative resource of cleaning.Wind-driven generator is common alternating current asynchronous generator, double-fed asynchronous generator and magneto alternator, discloses the wind-driven generator of the permanent magnetic material that comprises neodymium iron boron in the prior art.The minitype permanent magnetism synchro wind generator divides two kinds of trunnion axis (horizontal) and vertical axises (vertical) by installation form, the armature spindle of small-sized vertical axis permanent magnet synchro wind generator connects with gearbox by shaft coupling usually, and gearbox connects with the fixing vertical axis of blower fan again, the vertical axis permanent magnet synchro wind generator group that adopts this structure is than heaviness and complex structure, the weight and the cost of generating set have been increased, long-time running is easier to produce fault, so the maintaining workload is big, and very inconvenience and labour intensity are big when installing at the scene, have improved the mounting condition of job site.
The tangential rotors magnetic structure that existing small-sized vertical axis permanent magnet synchro wind generator generally adopts built-in installation magnet steel to be constituted, the rational proportion that number of poles is less, influence the slot number ratio, be difficult to promote power generating quality, become one of bottleneck of restriction wind power generation economy, and because number of poles is less, so frequency is also very low, rotor utilizes degree low with magnet steel, cause the volume of magnet steel bigger, this not only makes corresponding the becoming of volume of wind-driven generator raise up than big and cost.
In view of this, the small-sized vertical axis permanent magnet synchro wind generator of existing structure is needed improvement badly.
[utility model content]
The deficiency that the utility model exists at above-mentioned prior art and the small-sized vertical axis permanent magnet synchro wind generator that is suitable for low speed that provides vertical axis rotor can be directly installed on designs simplification on the generator rotor shaft, in light weight, low cost of manufacture make that the maintaining requirement was low when this wind power generation unit frequency met relevant national standard, on-the-spot easy for installation, operation.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
Small-sized vertical axis permanent magnet synchro wind generator, comprise stator, rotor, front end housing, rear end cap and vertical axis, stator is made up of casing, stator winding and stator core, rotor comprises armature spindle and magnet steel, it is outer and its rear end is positioned at rear end cap that the front end of armature spindle stretches out front end housing, rotor also comprises rotating cylinder, and the outer rim of rotating cylinder is evenly distributed with some roads groove, is fixed with the tile magnet steel on the per pass groove; The flute profile of stator core is a skewed slot, and its angle of inclination is 13 °～14 °; Vertical axis and armature spindle are same axle.
Said stator groove number and number of magnetic poles mix proportion are 12: 5, and number of stator slots and rotor magnetic pole number can be a kind of in extremely of 48 grooves, 20 utmost points, 72 grooves, 30 utmost points or 96 grooves 40.
The utility model compared with prior art has following beneficial effect:
1, vertical axis in the utility model and armature spindle are same axle, because its shaft extension end can directly be installed various vertical axis rotors such as turbine type or H type, parts such as gearbox, shaft coupling have been save, this is simple for structure, in light weight, cost is reduced greatly, and then reduced generating set weight, removed from gearbox maintaining work, reduced when installing at the scene that labour intensity is big, the mounting condition of installation cost and job site.
2, the flute profile of stator core is designed to the skewed slot at 13 °～14 ° at angle of inclination, and this bathtub construction can play eliminates the influence of slot ripples electromotive force to voltage waveform.
3, the fixing magnet steel of multi-disc tile shape structure of the outer rim of rotating cylinder, this multipole radial surface rotor magnetic circuit structural, not only created condition for the rational proportion design of slot number ratio, and preferably and low-speed direct driving type wind wheel is complementary, under the certain situation of rotating speed, the wind power generation unit frequency has met relevant criterion (more than the 20HZ), and this makes the degree of utilizing of magnet steel get a promotion, reduced the volume of required magnet steel, the cost of wind-driven generator is reduced significantly.
4, optimal design the mix proportion of number of stator slots and number of magnetic poles, reduced the influence of harmonic wave of output voltage component and reduced the sinusoidal sex distortion rate of voltage waveform, improve the generator potential waveform, improved generator performance, thereby improved power generating quality.
[description of drawings]
Be described in further detail with regard to the utility model below in conjunction with accompanying drawing.
Fig. 1 is the utility model structural representation;
Fig. 2 is a rotor structure schematic diagram of the present utility model, and wherein: the rotating cylinder outer rim is not installed magnet steel;
Fig. 3 is a rotor vertical view of the present utility model, and wherein: the rotating cylinder outer rim has been installed magnet steel.
[embodiment]
With reference to Fig. 1～shown in Figure 3, small-sized vertical axis permanent magnet synchro wind generator, comprise stator, rotor, front end housing 10, rear end cap 11 and vertical axis 5 ', stator is press-fited by the stator core 2 of casing 1 and band stator winding 3 and forms, embedded stator winding 3 in the stator core 2, rotor is installed in the stator, rotor is by armature spindle 5, magnet steel 7 and rotating cylinder 4 are formed, it is outer and its rear end is positioned at bonnet end 11 that armature spindle 5 stretches out front end housing 10, armature spindle is by fore bearing 8 that is installed in front end housing 10 and rear bearing 9 supportings that are installed in rear end cap 11, fore bearing 8 adopts deep groove ball bearing, and 9 employing angular contact ball bearings of rear bearing are to bear radial and axial two-way load.Evenly be milled with the groove 40 with the number of magnetic poles equal number on the external cylindrical surface of rotating cylinder 4, be fixed with tile shape magnet steel 7 on the per pass groove 40; The flute profile of stator core 2 is a skewed slot 20, and its angle of inclination is 13 °～14 °, and the flume structure of this angle can play eliminates the influence of slot ripples electromotive force to voltage waveform; Vertical axis 5 ' and armature spindle 5 are same axle, and its shaft extension end can design by wind wheel structure, and to satisfy the needs that the wind wheel (not shown) directly is installed, wind wheel can be multiple structures such as turbine type or H type.
Wherein, the rotating cylinder 4 of rotor is integral by the mild steel hot investment casting, compares with the common common rotor by the folded riveting moulding of silicon steel sheet, has advantage simple in structure, easy to process, for improving the reliability of transmission, rotating cylinder 4 connects by key 6 with armature spindle, press-fits to be fixed together with transmitting torque.
The groove number of stator is called the slot number ratio with the proportioning of number of magnetic poles, and slot number ratio of the present utility model is 12: 5, and specifically, number of stator slots and number of magnetic poles can be selected wherein a kind of in extremely of 48 grooves, 20 utmost points, 72 grooves, 30 utmost points or 96 grooves 40.
The minitype permanent magnetism synchro wind generator, its rated speed n lower (general 200r/min is following), and increase the degree of utilizing that frequency can improve magnet steel, reduce the volume of required magnet steel.For guaranteeing that its frequency meets related standards (more than 20 hertz), according to f=n.p/60, rotation speed n one regularly, frequency f is directly proportional with number of pole-pairs p, from improving the angle of frequency, should select more number of pole-pairs p (rotor magnetic steel of the present utility model adopts 20 utmost points～40 utmost points), therefore in the design of rotor magnetic circuit, select multipole radial surface magnetic structure comparatively favourable.
Because this small-sized vertical axis permanent magnet synchro wind generator has adopted above design and structure, make that this generator has that power generation performance is good, frequency meets the requirements, the efficient height, volume is little, simple in structure, cost is low, reliable, non-maintaining, wind wheel can directly be installed, the needs of miniature direct-drive vertical axis aerogenerator group have been satisfied preferably, therefore, has vast market prospect.
Claims (4)
1. small-sized vertical axis permanent magnet synchro wind generator, comprise stator, rotor, front end housing, rear end cap and vertical axis, stator is made up of casing, stator winding and stator core, rotor comprises armature spindle and magnet steel, it is outer and its rear end is positioned at rear end cap that the front end of armature spindle stretches out front end housing, it is characterized in that: rotor also comprises rotating cylinder, and the outer rim of rotating cylinder is evenly distributed with some roads groove, is fixed with the tile magnet steel on the per pass groove; The flute profile of stator core is a skewed slot, and its angle of inclination is 13 °～14 °; Vertical axis and armature spindle are same axle.
2. small-sized vertical axis permanent magnet synchro wind generator as claimed in claim 1 is characterized in that: described number of stator slots and number of magnetic poles mix proportion are 12: 5.
3. small-sized vertical axis permanent magnet synchro wind generator as claimed in claim 2 is characterized in that: described number of stator slots and number of magnetic poles are a kind of in extremely of 48 grooves, 20 utmost points, 72 grooves, 30 utmost points or 96 grooves 40.
4. small-sized vertical axis permanent magnet synchro wind generator as claimed in claim 1 is characterized in that: described armature spindle is by fore bearing that is installed in front end housing and the rear bearing supporting that is installed in rear end cap, and described rotating cylinder and armature spindle are by key joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201736414U CN201708669U (en) | 2010-04-25 | 2010-04-25 | Small vertical-shaft permanent-magnet synchronous wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201736414U CN201708669U (en) | 2010-04-25 | 2010-04-25 | Small vertical-shaft permanent-magnet synchronous wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201708669U true CN201708669U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201736414U Expired - Fee Related CN201708669U (en) | 2010-04-25 | 2010-04-25 | Small vertical-shaft permanent-magnet synchronous wind-driven generator |
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| Country | Link |
|---|---|
| CN (1) | CN201708669U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730990A (en) * | 2014-01-13 | 2014-04-16 | 温岭市东菱电机有限公司 | Special motor for opening and closing of electrically operated gate |
| CN103855893A (en) * | 2012-12-04 | 2014-06-11 | 哈尔滨恒誉名翔科技有限公司 | Low-speed constant-torque outer-cooling type permanent magnet synchronization explosion-proof motor |
-
2010
- 2010-04-25 CN CN2010201736414U patent/CN201708669U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855893A (en) * | 2012-12-04 | 2014-06-11 | 哈尔滨恒誉名翔科技有限公司 | Low-speed constant-torque outer-cooling type permanent magnet synchronization explosion-proof motor |
| CN103730990A (en) * | 2014-01-13 | 2014-04-16 | 温岭市东菱电机有限公司 | Special motor for opening and closing of electrically operated gate |
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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: 20110112 Termination date: 20110425 |