CN201278473Y - Permanent magnet wind power generator for combined stator structure - Google Patents
Permanent magnet wind power generator for combined stator structure Download PDFInfo
- Publication number
- CN201278473Y CN201278473Y CNU2008202182451U CN200820218245U CN201278473Y CN 201278473 Y CN201278473 Y CN 201278473Y CN U2008202182451 U CNU2008202182451 U CN U2008202182451U CN 200820218245 U CN200820218245 U CN 200820218245U CN 201278473 Y CN201278473 Y CN 201278473Y
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- magnetic pole
- punching
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- permanent
- groove
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a permanent-magnet wind power generator combined with a stator structure, belonging to the field of permanent-magnet wind power generators. I-shaped punched sheets are overlapped and pressed to form magnetic poles; two sides of the yoke of each punched sheet are respectively provided with a punched sheet lug and a punched sheet groove; when the punched sheets are overlapped and pressed to form magnetic poles, the punched sheet lugs and the punched sheet grooves are respectively overlapped and pressed to form magnetic pole lugs and magnetic pole grooves; coils are winded round the magnetic poles to form stator windings; every two adjacent magnetic poles are formed through splicing magnetic pole lugs and magnetic pole grooves and welded together; the magnetic poles are circumferentially spliced into stators in hollow cylinder shapes; polar grooves of stators and polar grooves of rotors have a ratio of 24:22 or 24n:22n; the rotors are embedded in the center of the stators; shafts are inserted in the wheel hubs of the rotors, and the shafts are connected with bearing inner rings; bearing outer rings are connected with end covers; and bearings drive the shafts to rotate, so that the shafts drive the rotors to rotate.
Description
Technical field
The utility model relates to technical field of generators, particularly a kind of permanent-magnetic wind driven generator of combined stator structure.
Background technology
Stipulate relevant for limit value among standard GB/T10760.1-2003 from net type permanent-magnetic wind driven generator starting reactance square value under no-load condition, permanent-magnetic wind driven generator starting reactance square is the smaller the better from practical situations, starting reactance square I has improved wind energy utilization to allow permanent-magnetic wind driven generator starting-generating under gentle breeze.The starting reactance square of permanent-magnetic wind driven generator mainly comprises: friction, hysteresis torque and cogging torque; Mainly start with in order to reduce the starting reactance square from this three aspect, this wherein cogging torque occupy the overwhelming majority, document is arranged, the way that reduces cogging torque is the stator groove of remaining silent the most effectively, the stator groove of remaining silent can be eliminated cogging torque substantially.Groove brings very big difficulty for the motor windings rule but magneto is selected to remain silent, in producing, real electrical machinery is difficult to adopt, the stator of present permanent-magnetic wind driven generator and common electric machine there is no big difference, reduce the starting reactance square so urgently propose a kind of new structure.
The utmost point groove ratio of general motor is far smaller than 1, the direct drive permanent magnetic generator is because number of poles is many, if adopt integer groove winding stator span bigger, the problem of bringing is that the end is longer, waste material and bring loss and problem such as end-heating, it is bad that above reason causes being applied on the direct-drive permanent magnet wind power generator of low speed effect, cooperates so propose new utmost point groove.
The utility model content
For solving the problem that exists in the above device, the utility model provides a kind of permanent-magnetic wind driven generator of combined stator structure to reduce the starting reactance square, has improved efficient.
The utility model structural design is achieved in that permanent-magnetic wind driven generator, comprise stator, rotor, bearing, end cap and axle, it is characterized in that described stator is the hollow cylinder shape, hollow cylinder is spliced by magnetic pole, magnetic pole is laminated by punching and forms, the good stator winding of coiling on the magnetic pole that laminates, the utmost point groove ratio that stator and rotor adopt is 24: 22,24 groove stator winding of permanent-magnetic wind driven generator, rotor 22 electrode structures of stator 24 groove correspondences, when adopting the rotor of 48 groove correspondences, stator adopts 44 electrode structures, and corresponding multiple.
Described punching is " worker " font, and last lower limb is curved, and is respectively equipped with at least one punching projection and at least one punching groove in punching yoke portion both sides.When power of motor is increased to 20KW, stator outer diameter also will strengthen, but will satisfy under intensity and the machining accuracy condition, can adopt 2 or 2 protruding and punching grooves of above punching, the punching projection laminated into magnetic pole projection and magnetic pole groove respectively with the punching groove when magnetic pole was laminated by punching.
Described hollow cylinder is spliced by magnetic pole, and two adjacent magnetic poles are connected with the magnetic pole groove by the magnetic pole projection and weldering vertically extremely has the space between adjacent two magnetic pole pole shoes, can obviously weaken cogging torque.
The beneficial effects of the utility model are: adopt stator combined structure, the motor windings rule is convenient, technology is simple, the utilance height of punching, and air gap is minimum between the magnetic pole pole shoe, obviously weaken cogging torque, reduced the starting reactance square, this utmost point groove fit system can guarantee at utmost to reduce winding overhang length, has saved material, reduce motor copper loss and end-heating simultaneously, improved efficient.
Description of drawings
Fig. 1 stator laminating structure schematic diagram of the present utility model;
Design sketch after Fig. 2 pole combination of the present utility model;
Fig. 3 stator of the present utility model and rotor assembling schematic diagram;
Among the figure: 1-punching projection, 2-punching groove, 3-pole shoe, 4-stator, 5-rotor, 6-wheel hub
Embodiment
The utility model detailed structure is illustrated with accompanying drawing with the following Examples.
As shown in the figure, permanent-magnetic wind driven generator, comprise stator 4, rotor 5, bearing, end cap and axle, wherein stator 4 is the hollow cylinder shape, hollow cylinder is spliced by magnetic pole, magnetic pole is laminated by punching and forms, at the good stator winding of the magnetic pole coiling that laminates, punching is " worker " font, last lower limb is curved, and be respectively equipped with 1 and punching groove 2 of a punching projection in punching yoke portion both sides, when punching laminates into magnetic pole, punching projection 1 laminates into magnetic pole projection and magnetic pole groove respectively with punching groove 2, two adjacent magnetic poles are by magnetic pole projection and the amalgamation of magnetic pole groove, and weldering is dead vertically, between adjacent two magnetic pole pole shoes the space is arranged, can obviously weaken cogging torque, rotor 5 is embedded in the hollow part of stator 4, insert axle in the wheel hub 6 of rotor 5, axle links to each other with bearing inner race, bearing outer ring links to each other with end cap, bearing drives axle and rotates, thereby drives the motion of rotor 5, and the utmost point groove ratio that stator 4 and rotor 5 adopt is 24: 22,24 groove stator winding of permanent-magnetic wind driven generator, rotor 22 electrode structures of stator 24 groove correspondences, this utmost point groove fit system can guarantee at utmost to reduce winding overhang length, has saved material, reduce motor copper loss and end-heating simultaneously, improved efficient.
Claims (4)
1, a kind of permanent-magnetic wind driven generator of combined stator structure, comprise stator (4), rotor (5), bearing, end cap and axle, it is characterized in that described stator is the hollow cylinder shape, hollow cylinder is spliced by magnetic pole, be wound with coil on the magnetic pole, magnetic pole is laminated by punching and forms, and the utmost point groove ratio that stator (4) and rotor (5) adopt is 24: 22 or 24n: 22n, and n is a natural number.
2, according to the permanent-magnetic wind driven generator of the described a kind of combined stator structure of claim 1, it is characterized in that described punching is " worker " font, last lower limb is curved, and is respectively equipped with at least one punching projection (1) and at least one punching groove (2) in punching yoke portion both sides.
3,, it is characterized in that described magnetic pole is laminated by punching to form that punching projection (1) and punching groove (2) laminate into the protruding and magnetic pole groove of magnetic pole respectively simultaneously according to the permanent-magnetic wind driven generator of the described a kind of combined stator structure of claim 1.
4, according to the permanent-magnetic wind driven generator of the described a kind of combined stator structure of claim 1, it is characterized in that described hollow cylinder is spliced by magnetic pole, two adjacent magnetic poles are connected with the magnetic pole groove by the magnetic pole projection, form the space between adjacent two magnetic pole pole shoes (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202182451U CN201278473Y (en) | 2008-09-27 | 2008-09-27 | Permanent magnet wind power generator for combined stator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202182451U CN201278473Y (en) | 2008-09-27 | 2008-09-27 | Permanent magnet wind power generator for combined stator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201278473Y true CN201278473Y (en) | 2009-07-22 |
Family
ID=40896063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202182451U Expired - Fee Related CN201278473Y (en) | 2008-09-27 | 2008-09-27 | Permanent magnet wind power generator for combined stator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201278473Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055251A (en) * | 2009-11-06 | 2011-05-11 | 天津市松正电动科技有限公司 | Permanent-magnet motor capable of effectively eliminating slot effect |
| CN105114448A (en) * | 2015-09-15 | 2015-12-02 | 南京埃斯顿自动控制技术有限公司 | Bearing with power generation function |
-
2008
- 2008-09-27 CN CNU2008202182451U patent/CN201278473Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055251A (en) * | 2009-11-06 | 2011-05-11 | 天津市松正电动科技有限公司 | Permanent-magnet motor capable of effectively eliminating slot effect |
| CN105114448A (en) * | 2015-09-15 | 2015-12-02 | 南京埃斯顿自动控制技术有限公司 | Bearing with power generation function |
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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: 20090722 Termination date: 20100927 |