CN101169104A

CN101169104A - Cantilever type inner stator wind power generator

Info

Publication number: CN101169104A
Application number: CNA2006100632295A
Authority: CN
Inventors: （发明人请求不公布姓名）
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-23
Filing date: 2006-10-23
Publication date: 2008-04-30

Abstract

The invention provides a cantilever type inner stator wind generator, relating to a wind generator device, and the cantilever type inner stator wind generator mainly comprises wind blades, a shaft, a permanent magnet rotor, a stator, a gyroscope body, a tower pipe and a cable. A motor is fixed on the gyroscope body through the shaft, a bearing and the stator are arranged on the cantilever end of the shaft, and the permanent magnet rotor is arranged outside the stator. The stator is supported by two bearings arranged on a cantilever shaft, and the wind blades are arranged on the front end of the permanent magnet rotor. Compared with the prior art, the invention eliminates completely the wheel hub and the motor shell of the conventional wind generator, and has small volume and less weight. Due to the inner stator structure, the removed part of the center of the iron core is little, therefore the material utilizing rate is high.

Description

Cantilever type inner stator wind power generator

Technical field

The present invention relates to a kind of wind generating unit, especially axle is the inner stator wind power generator of cantilever structure.

Background technique

Existing wind-driven generator, fan blade generally all are installed on the wheel hub, and wheel hub is installed on the motor shaft again, and during work, wind wheel drive motor axle drives rotor running generating, and motor all adopts the external stator inner rotor core, and the problem that this structure exists has:

1 because wheel hub and electric machine casing all compare heaviness, volume is big, the cost height.

The core of 2 stator cores has the material that is equivalent to the root diameter size to be not used, and waste is big, the cost height.

3 stator core notches are inside, and rule is difficulty relatively, and manufacturing efficiency is low.

Summary of the invention

Purpose of the present invention just provides a kind of wheel hub that do not need, and does not also need heavy motor housing, stator core stock utilization height, and stator winding is wind-driven generator easily.

The object of the present invention is achieved like this: mainly comprise fan blade, axle, p-m rotor, stator, solid of rotation, tower pipe, cable, pass motor behind the cable connection stator and enter solid of rotation, from the tower pore, draw then, solid of rotation is installed in the top of tower pipe and by a bearings, its specialization is: motor is to be fixed on the solid of rotation by axle, cantilever end at axle, bearing and stator are installed, the outside of stator is a p-m rotor, p-m rotor is by two bearings on the cantilevered axle, and fan blade is directly installed on the front end of p-m rotor.

P-m rotor is made of rotor case, front cover, rear end cover, a watt shape permanent magnet, and front cover, rear end cover are arranged in the front-end and back-end of rotor case, and watt shape permanent magnet is installed in the inner headed face of rotor case.

Because whole motor and wind wheel all are suspended on the axle, axle will bear bigger bending moment, so adopt the disc flange structure at the fixed end of axle, is equivalent to flange part and solid of rotation is fastenedly connected, for convenient stator current is drawn, be processed with the hole that to pass cable in the side and the center of axle.

For the revolution physical efficiency is rotated on the tower pipe flexibly, below solid of rotation, support with thrust-bearing.

During work, cantilevered axle is maintained fixed motionless, and wind wheel directly drives the p-m rotor running makes staor winding produce induced electromotive force, and electric current outputs under the tower pipe through cable then.

Beneficial effect:

1 has removed wheel hub and the electric machine casing that conventional wind-driven generator exists, and volume is little, and is in light weight, and cost is low.

2 owing to be the inner stator structure, and part is removed seldom in center unshakable in one's determination, so stock utilization is very high.

3 because the internal stator iron core notch is outside, and it is very convenient to wind the line, the manufacturing efficiency height, and cost is low.

Description of drawings:

Accompanying drawing is the structural representation of " cantilever type inner stator wind power generator " of the present invention

Sequence number explanation among the figure:

Fan blade 1, axle 2, front cover 3, rotor case 4, watt shape permanent magnet 5, stator 6, rear end cover 7, solid of rotation 8, tower pipe 9, thrust-bearing 10, cable 11, rolling bearing 12, axis hole 13, shaft flange 14

Embodiment:

Now in conjunction with the accompanying drawings and embodiments the present invention is further described:

Cantilever type inner stator wind power generator structure of the present invention as shown in the figure, mainly by fan blade 1, axle 2, front cover 3, rotor case 4, watt shape permanent magnet 5, stator 6, rear end cover 7, solid of rotation 8, tower pipe 9, thrust-bearing 10, cable 11, rolling bearing 12 is formed, pass motor behind the cable 11 connection stators 6 and enter solid of rotation 8, from tower pipe 9 holes, draw then, solid of rotation 8 is installed in the top of tower pipe and is supported by thrust-bearing 10, motor is to be fixed on the solid of rotation 8 by axle 2, cantilever end at axle 2, rolling bearing 12 and stator 6 are installed, the outside of stator is a watt shape permanent magnet 5, watt shape permanent magnet 5 is directly installed on the inner headed face of rotor case 4, the front-end and back-end of rotor case 4 are separately installed with front cover 3 and rear end cover 7, rolling bearing 12 just just in time floats p-m rotor and supports, fan blade 1 is directly installed on the front end of p-m rotor, promptly is installed on the front cover 3.

During work, wind wheel 1 directly drives the p-m rotor that is formed by front cover 3, rotor case 4, watt shape permanent magnet 5, rear end cover 7, make stator 6 produce induced electromotive force, because it is motionless that axle is maintained fixed, can directly pass stationary axle and enter the tower pipe through solid of rotation electric energy is drawn so connect the cable of stator.

Claims

1. cantilever type inner stator wind power generator, mainly comprise fan blade, axle, p-m rotor, stator, solid of rotation, tower pipe, cable, pass motor behind the cable connection stator and enter solid of rotation, from the tower pore, draw then, solid of rotation is installed in the top of tower pipe and by a bearings, its specialization is: motor is to be fixed on the solid of rotation by axle, cantilever end at axle, bearing and stator are installed, the outside of stator is a p-m rotor, p-m rotor is by two bearings on the cantilevered axle, and fan blade is directly installed on the front end of p-m rotor;

2. a kind of fixedly shaft type wind-driven generator according to claim 1, it is characterized in that: p-m rotor is made of rotor case, front cover, rear end cover, a watt shape permanent magnet, front cover, rear end cover are arranged in the front-end and back-end of rotor case, and watt shape permanent magnet is installed in the inner headed face of rotor case;

3. a kind of cantilever type inner stator wind power generator according to claim 1 is characterized in that: the rear end of motor shaft is the disc flange shape, and side and center are processed with the hole that can pass cable;

4. a kind of cantilever type inner stator wind power generator according to claim 1 is characterized in that: the bearing that supports solid of rotation above the tower pipe is a thrust-bearing.