Off-grid type coreless wind driven generator
A wind turbine, ironless technology, used in electrical components, electromechanical devices, magnetic circuit shape/style/structure, etc., can solve the problems of restricting the development of wind power generation industry, complex motor structure, difficult installation, etc., and achieve low noise. , the effect of reducing the volume and reducing the weight
Inactive Publication Date: 2011-04-20
GUANGXI YIZHAN NEW ENERGY MFG
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Problems solved by technology
[0002] In the current technology, the generator for wind power generation is usually a permanent magnet direct drive wind generator with an iron core. Although this kind of generator has a simple structure and reliable operation, the huge electromagnetic attraction generated between the stator and the rotor makes the structure of the motor complex and difficult. High cost and difficult installation; also because of the cogging torque and certain core loss of this generator, these defects limit the further development of the wind power industry
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Embodiment Construction
[0018] The off-grid iron-coreless wind power generator of the present invention is composed of a rotor 1 and a stator 4. The stator 4 includes a plastic round box 2 formed by one-time die-casting and several iron-less coil windings arranged in the round box 2. The coil windings For distributed winding or centralized winding, the inside of the round box 2 is divided by fan-shaped grids 3 that are equally divided around the shaft hole. Each fan-shaped grid 3 is matched with a coil winding and fixed with a non-magnetic material, such as figure 1 , figure 2 shown.
[0019] Both sides of the stator 4 are equipped with a rotor 1 equidistant from each other. The rotor 1 is a permanent magnetic disk. The two rotors 1 and the middle stator 4 are coaxial and have the same diameter. The distance between the rotor 1 and the stator 4 is 1 mm to 5 mm; The relative rotation between the stators 4 can be that the stator 4 is fixed and the rotors 1 on both sides rotate synchronously, or that ...
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The invention discloses an off-grid type coreless wind driven generator, comprising stators and rotors, wherein each stator comprises a circular boxe and a plurality of coreless coil windings which are fixed in the circular boxes by a non-magnetic material, and the coil windings are distributed windings or centralized windings; the rotors are permanent magnetic discs concentrically arranged on both sides of the stators, and gaps are retained between each rotor and each stator. The relative rotation between the stators and the rotors can be the situation that the stators are fixed and the rotors on both sides rotate simultaneously, or the situation that the rotors on both sides are fixed and the stators rotate. Different connection ways are adopted among the coil windings to achieve two-phase electricity output, three-phase electricity output or multiple-phase electricity output, and the output electricity is direct current or alternating current. In the invention, since the structure of the coreless stators is adopted, internal resistance is small, the torsion moment of load is alleviated, meanwhile, huge electromagnetic attraction between the stators and the rotors is also eliminated, (cogging torque and core loss in a traditional structure are eliminated,) the volume and the weight of the turbine are reduced, and the power of the turbine is increased.
Description
(1) Technical field [0001] The invention relates to a generator, in particular to an off-grid ironless wind power generator. (2) Technical background [0002] In the current technology, the wind power generator is usually a permanent magnet direct drive wind power generator with an iron core. Although this kind of generator has a simple structure and reliable operation, the huge electromagnetic attraction generated between the stator and the rotor makes the structure of the motor complex, High cost and difficult installation; also because the generator has cogging torque and certain core loss, these defects limit the further development of the wind power industry. (3) Contents of the invention [0003] The object of the present invention is to provide an off-grid type ironless wind power generator that eliminates the electromagnetic attraction between the stator and the rotor, has no cogging torque and iron core loss, and improves the power of the motor. [0004] The off-...
Claims
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IPC IPC(8): H02K16/02H02K1/12
Inventor 邓康轩
Owner GUANGXI YIZHAN NEW ENERGY MFG