[DESCRIPTION] [Invention Tit Ie]

GENERATOR MADE OF COIL AND PERMANENT MAGNET [Technical Field] The present invention relates to a generator for converting torque of a rotor into electrical energy in a wind power generation system for generating electricity using wind energy, and more particularly, to a wind power generation system capable of increasing a power generation efficiency by excluding a gearbox that causes a mechanical inefficiency, providing permanent magnets to a drum disposed in the center of a rotating rotor, and providing coils to a pi liar which is a concrete structure that does not rotate but is fixed, in order to directly convert the torque of the rotor into electrical energy, thereby obtaining an optimal power generation efficiency at a lower wind speed.

After energy crisis, technologies of wind power generation and photovoltaic power generation systems using clean energy have been continuously developed by every country, and the technologies have been actively commercialized all over the world. [Background Art]

As the conventional power generation systems using clean energy, the photovoltaic power generation systems are widely used. However, the photovoltaic power generation systems are influenced by weather change, and this causes inefficiency. On the contrary, the wind power generation systems can provide power in certain weather conditions without solar energy, and. more effectively generate power in mountainous areas as compared with the

photovoltaic power generation systems.

In order for the wind power generation system to more effectively use the wind, torque of rotors included in the wind power generation system has to be used as efficiently as possible. Generally, the torque is increased by increasing revolutions per minute (RPM) from the rotor using gears to generate electricity.

Namely, the PRM is increased by using gears to generate electricity, so that a mechanical efficiency in gears of power transmission mainly affects a power generation efficiency. Accordingly, development of increasing the mechanical efficiency has been continued. However, the development has limitations, so that development of basically increasing the power generation efficiency is required. [Disclosure] [Technical Problem] The purpose of the present invention is providing a generator for converting torque of a rotor 1 into electrical energy in a wind power generation system for generating electricity using wind energy, and the wind power generation system capable of increasing a power generation efficiency by excluding a gearbox that causes a mechanical inefficiency, thereby obtaining an optimal power generation efficiency at a lower wind speed. [Technical Solution]

To achieve the above purpose, the present invention provides a wind power generation system for generating electricity using wind power . The wind power generat ion system can increase a power generat ion efficiency by excluding a gearbox that causes a mechanical inefficiency in high RPM, providing permanent magnets 3 to a drum 2 disposed in the

center of the rotating rotor 1, and providing coils 5 to a pillar 4 which is a concrete structure that does not rotate but is fixed, in order to directly convert the torque of the rotor 1 into electrical energy, thereby obtaining an optimal power generation efficiency at a lower wind speed.

[Advantageous Effects]

The present invention relates to the generator for converting torque of the rotor 1 into electrical energy in the wind power generation system for generating electricity using the wind energy. In order to achieve an optimal power generation efficiency at the low wind speed, a gearbox that causes a mechanical inefficiency caused by the high RPM in gear rotated by the torque of the rotor 1 is excluded. Instead, in order to directly convert the torque of the rotor 1 into electrical energy, the permanent magnets 3 are provided to the drum 2 disposed in the center of the rotating rotor 1, and the coils 5 are provided to the pillar 4 which is a concrete structure that does not rotate but is fixed. Therefore, the power generation efficiency can be increased.

Accordingly, the wind power generation system employing the present invention to generate power using wind energy can generate power more effectively. [Description of Drawings]

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:

FIG.l is a perspective view i 1 lustrating a rotor of a wind power generator;

FIG.2 is a perspective view illustrating a generator provided to the wind power generator!

FIG. 3 is an enlarged view of FIG. 2;

FIG.4 is a perspective view illustrating a coil and a space for inserting a coil into a pillar;

FIG.5 is a perspective view i 1 lus-trating the coil inserted into the pillar;

FIG.6 is a perspect ive view i 1 lustrating the coi 1 inserted into the pi 1 lar ; FIG.7 is a perspect ive view i 1 lustrating the coil inserted into the pillar;

FIG.8 is a perspect ive view i 1 lustrating the coil inserted into the pillar;

FIG.9 is a perspective view illustrating FIG.8 from another angle;

FIG. 10 is a perspective view illustrating permanent magnets to be fixed to members having a shape of ¹ C';

FIG. 11 is a perspective view illustrating the permanent magnets attached to the members having the shape of 'C'; FIG. 12 is a perspective view illustrating the permanent magnets provided to a drum and the coils provided to the pillar; and FIG. 13 is a perspective view illustrating the permanent magnets provided to the drum and the coils provided to the pillar.

<Reference Numerals> 1: rotor2: drum

3: permanent magnet4: pillar 5: coi 16: blade

T- center axisδ: mounting portion 9: upper portionlO: lower portion 11: upper rai 112: lower rail 13: pistonl4: member having a shape of 'C 15: upper portion of the member16: lower portion of the member [Best Mode]

To achieve the above purpose, the present invention provides a generator used in wind power generation system comprising, three mounting portions 8 which are disposed in trisected portions of a circumference of a pillar 4 and used for mounting coils 5 disposed in the pillar 4 that is a concrete structure to upper and lower rails 11 and 12; and the coils 5 mounted to the upper and lower rails 11 and 12; and permanent magnets 3 mounted to a drum 2. [Mode for Invention] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the attached drawings.

FIG.l is a perspective view illustrating a rotor 1 of a wind power generator. Blades 6 are disposed around a circumference of a drum

2 at predetermined intervals. The center axis 7 of the rotor 1 is disposed on a pillar 4. The drum 2 is connected with bearings to the center axis 7 to rotate. A power generator according to the present invention provides coils 5 and permanent magnets 3 to the pillar 4 and the drum 2, respectively.

FIG. 2 is a perspective view illustrating the generator provided to the wind power generator, and FIG.3 is an enlarged view of FIG.2. Three mount ing port ions 8 for mounting the coils 5 are formed at the pillar 4. The permanent magnets 3 provided to the drum 2 are

grouped by 10 to be mounted.

FIG.4 is a perspective view il lustrating the coil 5 and a space for inserting the coil 5 into the pillar 4. A rectangular opening including an upper portion 9 and a lower portion 10 is formed at the pillar 4. The upper portion 9 provided to the pillar 4 is formed to have such a width that the coil 5 penetrate the upper portion 9, and the lower portion 10 provided to the pillar 4 is formed so that the coil 5 penetrating the upper portion 9 is moved down to the lower portion 10 to be pressed to rails 11 and 12 by a piston 13. FIG. 5 is a perspective view illustrating the coil 5 inserted into the pillar 4. In a first operation for providing the coil 5 to the pillar 4, a state where the coil 5 is inserted through the upper potion 9 is shown.

FIG. 6 is a perspective view illustrating the coil 5 inserted into the pillar 4. It can be seen that the coil 5 at the upper potion 9 is moved down to the lower portion 10, and the upper rail 11 is cut as the width of the coil 5.

FIG. 7 is a perspective view illustrating the coil 5 inserted into the pillar 4. A state where the piston 13 is provided at a rear surface of the coil 5 moved down to the lower portion 10 is shown. FIG. 8 is a perspective view illustrating the coil 5 inserted into the pillar 4, and FIG. 9 is a perspective view illustrating FIG. 8 from another angle. The piston 13 at the lower portion 10 pushes the coil 5 toward the drum so that the coil 5 is pressed to the rails 11 and 12.

FIG. 10 is a perspective view illustrating the permanent magnets 3 to be fixed to members 14 having a shape of ' c ' . When the

permanent magnets 3 are attached to the member 14 having the shape of ' c ' , the permanent magnets 3 are attached to upper and lower portions 15 and 16 of the member 14 having the shape of ¹ C', respectively. The members 14 having the shape of ' c ' are grouped by ten for accuracy and convenience in mounting the permanent magnets 3 to the drum 2. FIG. 11 is a perspective view illustrating the permanent magnets 3 attached to the members 14 having the shape of ' c ' . FIGS. 12 and 13 are perspective views illustrating the permanent magnets 3 provided to the drum 2 and the coils 5 provided to the pillar 4. [Industrial Applicability]

As described in the above description, the present invention relates to the generator for converting torque of the rotor 1 into electrical energy in the wind power generation system for generating electricity using the wind energy. In order to achieve an optimal power generation efficiency at the low wind speed, a gearbox that causes a mechanical inefficiency caused by the high RPM in gear rotated by the torque of the rotor 1 is excluded. Instead, in order to directly convert the torque of the rotor 1 into electrical energy, the permanent magnets 3 are provided to the drum 2 disposed in the center of the rotating rotor 1, and the coi Is 5 are provided to the pi 1 lar 4 which is a concrete structure that does not rotate but is fixed. Therefore, the power generation efficiency can be increased.

Accordingly, the wind power generation system employing the present invention to generate power using wind energy can generate power more effectively.

Although exemplary embodiments of the present invention have been described in detail hereinabove, it should be understood that many

variations and modifications of the basic inventive concept herein described, which may appear to those skilled in the art, will still fall within the spirit and scope of the exemplary embodiments of the present invention as defined in the appended claims.