CN101359844A - Permanent magnet wind power generator of combined stator structure - Google Patents
Permanent magnet wind power generator of combined stator structure Download PDFInfo
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- CN101359844A CN101359844A CNA2008100134443A CN200810013444A CN101359844A CN 101359844 A CN101359844 A CN 101359844A CN A2008100134443 A CNA2008100134443 A CN A2008100134443A CN 200810013444 A CN200810013444 A CN 200810013444A CN 101359844 A CN101359844 A CN 101359844A
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- punching
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Abstract
The invention provides a permanent magnet wind motor with a combinatorial stator structure which belongs to permanent magnet wind motor field, adopting the technical proposal that: I-shaped punching sheets are laminated to form magnetic poles, a punching sheet bulge and a punching sheet groove are arranged at both sides of a yoke part of the punching sheet, the punching sheet bulge and the punching sheet groove are laminated respectively to form a magnetic pole bulge and a magnetic pole groove when the punching sheets are laminated as magnetic poles, coils are reeled around the magnetic poles to form stator windings, two adjacent magnetic poles are jointed and fixedly welded through the magnetic bulges and the magnetic grooves, the magnetic poles joint a hollow cylinder-shaped stator around the circumference, the pole groove ratio of the stator and the rotor is 24 : 22 or 24n : 22n, n is a natural number, the rotor is embedded in the central part of the stator, an axis is inserted into a wheel hub of the rotor, the axis is in connection with a bearing cone, a bearing cup is in connection with an end cover, the bearing drives the axis to roll and accordingly the axis drives the rotor to roll.
Description
Technical field
The present invention 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.
Summary of the invention
For solving the problem that exists in the above device, the permanent-magnetic wind driven generator that the invention provides a kind of combined stator structure reduces the starting reactance square, has improved efficient.
Structural design of the present invention 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 invention has the beneficial effects as follows: 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 invention;
Design sketch after Fig. 2 pole combination of the present invention;
Fig. 3 stator of the present invention 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
Detailed structure of the present invention 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, be wound with coil on the magnetic pole, magnetic pole is laminated by punching and forms, 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 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 combined stator structure of claim 1.
4, according to the permanent-magnetic wind driven generator of the described 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 |
|---|---|---|---|
| CNA2008100134443A CN101359844A (en) | 2008-09-27 | 2008-09-27 | Permanent magnet wind power generator of combined stator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100134443A CN101359844A (en) | 2008-09-27 | 2008-09-27 | Permanent magnet wind power generator of combined stator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101359844A true CN101359844A (en) | 2009-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100134443A Pending CN101359844A (en) | 2008-09-27 | 2008-09-27 | Permanent magnet wind power generator of combined stator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101359844A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051074A (en) * | 2011-10-11 | 2013-04-17 | 浙江特种电机有限公司 | Novel crossly-stacked directly-wound stator lamination structure of brushless direct-current variable-frequency motor |
| CN107769401A (en) * | 2016-08-19 | 2018-03-06 | 发那科株式会社 | The manufacture method of synchronous motor and synchronous motor |
| CN112688443A (en) * | 2020-10-08 | 2021-04-20 | 郭星 | Stator punching sheet monomer, stator punching sheet and motor stator |
-
2008
- 2008-09-27 CN CNA2008100134443A patent/CN101359844A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051074A (en) * | 2011-10-11 | 2013-04-17 | 浙江特种电机有限公司 | Novel crossly-stacked directly-wound stator lamination structure of brushless direct-current variable-frequency motor |
| CN103051074B (en) * | 2011-10-11 | 2015-06-17 | 浙江特种电机有限公司 | Novel crossly-stacked directly-wound stator lamination structure of brushless direct-current variable-frequency motor |
| CN107769401A (en) * | 2016-08-19 | 2018-03-06 | 发那科株式会社 | The manufacture method of synchronous motor and synchronous motor |
| CN112688443A (en) * | 2020-10-08 | 2021-04-20 | 郭星 | Stator punching sheet monomer, stator punching sheet and motor stator |
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Open date: 20090204 |