KR20100024311A - Wind power ganerator - Google Patents

Abstract

PURPOSE: An aerogenerator is provided to improve durability and generation efficiency by connecting a rotor and a blade through a spoke in order to open a stator. CONSTITUTION: An aerogenerator comprises one or more stators(10), one or more rotors(20), blades(30), and spokes(40). One or more stators are fixed to a post(2). Each rotor corresponds to a stator. One or more rotors are induced by electromagnetism. The blades are positioned around the rotor to rotate the rotor using wind force. The spokes connect each blade and rotor.

Description

 Wind Power Generators {WIND POWER GANERATOR}

The present invention relates to a generator for producing electric power using an external force, such as wind power, and a wind power generator including the same.

In general, a wind power generator is a device for converting wind energy, which is mechanical energy, into electrical energy, and is used in various fields. In particular, wind power generators are being developed in various countries around the world to produce electric power using wind energy, which is clean energy, due to the seriousness of energy crisis and environmental pollution caused by exhaustion of fossil fuel.

Looking at the development of the wind power generator, a plurality of blades receives the wind to rotate the rotor (rotator), thereby generating an electromotive force by the electromagnetic induction action between the rotor and the stator (stator).

These wind generators need to be able to generate high efficiency even at low speed because wind is not always fully functioning.

The present invention has been made to solve the above problems, an object of the present invention to provide a wind power generator that can be generated at high efficiency at low speed.

The present invention to solve the above problems is at least one stator fixed to the pillar; At least one rotor corresponding to the at least one stator in an axis of rotation and electromagnetically inducing; A plurality of blades disposed about the rotor so that the rotor can be rotated by wind power; It proposes a wind turbine comprising a; a plurality of spokes connecting the respective blades and the rotor.

At least one of the rotor and the stator may be disposed two or more.

The blade has a curved shape toward either side of the rotational direction; The spokes may be coupled to the outer surface of the blade.

The rotor is configured in plurality along the rotational axis direction, the spokes are coupled to the plurality of blades along the rotational axis direction so that a plurality of rotors can be simultaneously connected to one blade, the plurality of spokes coupled to the one blade is It may be alternately coupled to the inner side and outer side of the blade.

The plurality of spokes connected to the one rotor may be separated from each other or connected integrally.

The spokes may be configured to include a blade coupling portion formed to correspond to the blade to be in close contact with the blade.

The blade engaging portion may be configured to engage from the blade radially inner circumferential end to the outer circumferential end.

The spokes may be configured to extend from at least one of both sides of the rotation direction toward the rotor from the blade coupling portion and include a rotor coupling portion coupled to the rotor.

It may further include a frame formed on the outside of the plurality of blades to support the plurality of blades.

It may further include a guide module for supporting the frame so that the plurality of blades can be rotated while maintaining the concentric with the frame.

The guide module may include a guide rail installed at an upper side or a lower side of the frame; And at least one rolling element integrated with any one of the guide rail and the frame and rolling friction with the other one.

According to the problem solving means of the present invention as described above it can be expected a variety of effects including the following matters. However, the present invention is not achieved by exerting all of the following effects.

First, by being composed of the axial magnetic flux type, it can be generated at low speed and high efficiency, and can be driven directly.

In addition, since the rotor and the blade are connected by the spikes, the stator can be opened to excellent heat dissipation, thereby further improving durability and power generation efficiency.

In addition, by applying the spokes instead of the drum, the rotational inertia of the rotor is reduced by weight reduction, so it can be developed with high efficiency even at a low speed.

Also, by applying spokes instead of drums, assembly of the rotor is easier.

In addition, since the rotor is directly connected to the blade by the spokes, the rotor can be directly driven without power loss, so that the rotor can be developed at high efficiency with low speed, the structure can be simplified, and the manufacturing cost can be reduced.

In addition, since the rotor and the stator are installed in an open state, maintenance is easy.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a wind power generator according to a first embodiment of the present invention, Figure 2 is a plan sectional view of FIG.

As shown, the wind power generator according to the first embodiment of the present invention is an axial magnetic flux type, in which at least one stator 10 and at least one stator 10 are fixed to the pillar 2 in the rotational axis direction. At least one rotor 20 corresponding to electromagnetic induction, a plurality of blades 30 arranged around the rotor 20 so that the rotor 20 can be rotated by wind power, and each blade 30. It is configured to include a plurality of spokes 40 for connecting to the rotor 20.

The rotor 20 may be arranged at both sides of the rotation axis direction of the stator 10, respectively. As another example, the stator 10 may be arranged at both sides of the rotational axis direction of the rotor 20. In addition, since the rotor 20 and the stator 10 are arranged in multiple stages, the rotor 20 and the stator 10 may be designed as a generator having a high generation capacity. The two or more rotors 20 may be configured such that the permanent magnets face the N pole and the S pole in the rotation axis direction, or the permanent magnets face each other with the same poles.

Blade 30 may be configured in various ways depending on the geographic position, power generation capacity, and more preferably take a curved shape toward any one of both sides of the rotation direction so as to be easily rotated by the wind.

The spoke 40 includes a blade engaging portion 42 coupled to the blade 30 and a rotor engaging portion 44 coupled to the rotor 20.

The spokes 40 may be configured as long as the spokes 40 can be connected so that the plurality of blades 30 and the rotor 20 are integrally rotated.

However, the spokes 40 are more preferably coupled to the blade 30 so that the blade coupling portion 42 is formed to correspond to the blade 30 so as to have a good coupling force with the blade 30. That is, the blade coupling portion 42 has a curved shape corresponding to the curved shape of the blade 30 as described above.

In addition, the blade coupling portion 42 protrudes substantially radially from the rotor 20 as the rotor 20 and the blade 30 are radially arranged, so that the blade 30 can be more firmly coupled to the blade 30. It is further configured to be coupled over the outer circumferential end 30B at the radial inner circumferential end 30A of the blade 30 rather than being coupled only to a portion between the radially inner circumferential end 30A of the 30 30 and the outer circumferential end 30B. desirable.

The blade coupling portion 42 may be coupled to any one of the inner surface 32 and the outer surface 34 of the blade 30, but the inner surface 32 of the blade 30 is a pressure surface acting wind force More preferably, it is coupled to the outer surface 34 of the blade 30, which is a back pressure surface, so as not to affect the wind power acting on the blade 30.

The rotor coupling portion 44 is more preferably formed to extend from the blade coupling portion 42 toward at least one of both sides of the rotation direction toward the rotor 20. In other words. While the spoke 40 is not largely formed as a whole, the coupling area of the rotor coupling portion 44 and the rotor 20 can be secured as wide as possible, so that the spoke 40 and the rotor 20 can be firmly coupled and the rotor The rotational inertia of 20 may be advantageous in that power loss can be minimized. In addition, it may take an advantage that the boundary portion between the rotor coupling portion 44 and the blade coupling portion may not be structurally weak.

The plurality of spokes 40 coupled to one such rotor 20 may be configured to be separated so that they can be easily assembled separately.

In the case of the axial magnetic flux generator as described above, the magnetic circuit has a short path and a high energy density. In addition, by designing a slim generator having a large diameter and a short axial length, it is advantageous in terms of miniaturization and light weight, and thus has a high efficiency per unit volume and high efficiency, and the length of the arc even if the rotation angle is small due to the large radius of rotation. Even if the small rotor 20 is rotated, the magnetic flux formed by the rotor 20 may be sufficiently changed, thereby taking advantage of being able to sufficiently develop at low speed. In addition, since the slim design and the rotor 20 and the stator 10 can be arranged in multiple stages, the power generation capacity may be adjusted as needed.

In particular, since the rotor 20 and the blade 30 are connected by the spokes 40, the stator 10 may be installed in an open state, and since the wind may act directly on the stator 10, the stator 10 may be directly connected to the stator 10. ) Is excellent in heat dissipation, and thus, the durability of the stator 10 may be improved and power generation efficiency may be improved by preventing heat loss.

In addition, since the rotor 20 and the blade 30 are connected by the spokes 40, the weight is reduced compared to the case in which the rotor 20 and the blade 30 are connected by the drum, thereby greatly rotating the inertia of the rotor 20. Since it can be reduced, it can take advantage of generating high efficiency at low speed.

In addition, since the rotor 20 is directly connected to the blades 30 by the spokes 40, the rotor 20 may be directly driven without generating gears, thereby simplifying the structure and reducing manufacturing costs, particularly in power gears. There is no power loss due to the transmission process, and it can take advantage of generating high efficiency at low speed.

In addition, the rotor 20 is connected to the blade 30 by the spokes 40, so that the installation work area of the rotor 20 can be secured wider than when the rotor 20 is installed inside the drum. It is possible to take advantage that the assembling of.

In addition, since the rotor 20 and the stator 10 are installed in an open state, maintenance of the rotor 20, the stator 10, and the like may be advantageous.

Meanwhile, as another embodiment of the present invention, as shown in FIG. 3, a plurality of spokes 40 coupled to one rotor 20 may be integrally connected. That is, since the rotor coupling portions 44 of the plurality of spokes 40 are connected in one like a ring, the plurality of spokes 40 may be combined with the rotor 20 at the same time, thereby taking advantage of excellent assembly. have.

In addition, as another embodiment of the present invention, as shown in Figs. 4 and 5, the rotor 20 is configured in a plurality along the rotation axis direction, the spokes 40 are a plurality of rotors on one blade (30) A plurality of spokes 40 coupled to one blade 30 along a rotational axis direction may be coupled to one blade 30 so that the plurality of spokes 40 coupled to one blade 30 may be connected to the inner surface 30A of the blade 30. It can be alternately coupled to the outer surface (30B). That is, since the plurality of spokes 40 coupled to one blade 30 are engaged with one blade 30 like a fork, the spokes 40 and the blade 30 can be more firmly coupled, and the blades ( It may be advantageous that 30 can be more stably supported by multiple spokes 40.

6 is a perspective view of a wind power generator according to a fourth embodiment of the present invention, and FIG. 7 is a partially cutaway perspective view of FIG. 6.

In describing the present embodiment, the same and similar components as those of the above-described embodiments are designated by the same reference numerals so as not to disturb the gist of the present embodiment, and redundant descriptions are omitted.

As most of the wind power generators are manufactured in a large size, the rotor 20 and the stator 10 may be rubbed even when the plurality of blades 30 are finely moved, thereby lowering the power generation efficiency. Rotation may be constrained, and durability of the rotor 20 and the stator 10 may be degraded.

Therefore, it is more preferable to further include a frame 50 formed on the outside of the plurality of blades 30 so as to support the plurality of blades 30 more stably and reliably.

The frame 50 may be configured as long as it can support a plurality of blades 30, but it is more preferable that the frame 50 has a large mesh structure so as not to disturb the wind power acting on the blades 30. .

The frame 50 may be fixed to only support the plurality of blades 30 so as to be rotatable, but it is structurally simpler to be configured to rotate integrally with the plurality of blades 30 as in the present embodiment. It is further preferable in that a plurality of blades 30 can be supported more robustly.

Furthermore, in order to support the plurality of blades 30 more stably and steadily, the guide module for supporting the frame 50 may be rotated while maintaining the concentricity with the frame 50. 60) may be further included.

The guide module 60 may be configured in various ways. In one preferred embodiment, the guide module 60 may be integrated with any one of the guide rail 62 and the guide rail 62 and the frame 50 installed above or below the frame 50. And at least one rolling element 64 which is cloud rubbed to the other one.

Since the above has been described only with respect to some of the preferred embodiments that can be implemented by the present invention, the scope of the present invention, as is well known, should not be construed as limited to the above embodiments, the present invention described above It will be said that both the technical idea and the technical idea which together with the base are included in the scope of the present invention.

1 is a perspective view of a wind turbine according to a first embodiment of the present invention.

2 is a plan cross-sectional view of FIG.

3 is a plan sectional view of main parts of a wind power generator according to a second embodiment of the present invention.

4 is a perspective view of a wind turbine according to a third embodiment of the present invention.

5 is a plan sectional view of FIG.

6 is a perspective view of a wind turbine according to a fourth embodiment of the present invention.

7 is a partial cutaway perspective view of FIG. 6.

<Explanation of symbols on main parts of the drawings>

2; Pillar 10; Stator

20; Rotor 30; blade

40; Spoke 42; Blade joint

44; Rotor coupling part 50; frame

60; Guide module 62; Guide rail

64; Cloud elements

Claims (11)

At least one stator fixed to a column; At least one rotor corresponding to the at least one stator in an axis of rotation and electromagnetically inducing; A plurality of blades disposed about the rotor so that the rotor can be rotated by wind power; A plurality of spokes connecting the respective blades and the rotor; Wind generator, characterized in that comprises a. The method according to claim 1, And at least one of the rotor and the stator is disposed at least two. The method according to claim 1, The blade has a curved shape toward either side of the rotational direction; The spokes are wind turbine generator, characterized in that coupled to the outer surface of the blade. The method according to claim 1, The rotor is composed of a plurality along the rotation axis direction, The spokes are plurally coupled to one blade along a rotational axis so that a plurality of rotors can be simultaneously connected to one blade, The plurality of spokes coupled to the one blade is alternately coupled to the inner surface and the outer surface of the blade. The method according to claim 1, The plurality of spokes connected to the one rotor, the wind turbine generator, characterized in that separated from each other or integrally connected. The method according to any one of claims 1 to 5, The spokes are configured to include a blade coupling portion formed to correspond to the blade so as to be in close contact with the blade. The method according to claim 6, And the blade coupling portion is configured to be coupled from the blade radially inner circumferential end to the outer circumferential end. The method according to claim 6, The spokes are configured to extend from the blade coupling portion toward the rotor, at least one of the two sides of the rotation direction comprises a rotor coupling portion coupled to the rotor. The method according to any one of claims 1 to 5, And a frame formed on the outside of the plurality of blades to support the plurality of blades. The method according to claim 9, And a guide module for supporting the frame such that the plurality of blades can be rotated while maintaining concentricity with the frame. The method according to claim 10, The guide module may include a guide rail installed at an upper side or a lower side of the frame; At least one rolling element integrated with any one of the guide rail and the frame and rolling friction with the other one; Wind power generator comprising a.

Images