KR100720287B1 - Wind power generator - Google Patents

Abstract

The present invention relates to a wind turbine, the vertical shaft 21 is supported on the top bearing 12 of the tower 10 is rotated axially and the cylindrical rotating body 20 integrally formed to be horizontal to the top of the vertical shaft 21 ); The generator 14 is installed at the front end of the rotating body 20 and is integrally formed with the shaft of the generator 14 so as to axially rotate through the cylindrical rotating body 20, and the rotating plate 22 at the rear end thereof. A rotary shaft 24 mounted upright; A plurality of wing hinge shafts 30 which are installed at equal intervals along the outer surface edge of the rotating plate 22 and are staggered with a predetermined angle with respect to the center line of the rotating shaft 24; A plurality of wings 40, one end of which is hinged to the wing hinge shaft 30 and installed to rotate based on the wing hinge shaft 30; And it is configured to include a rotation angle adjustment means for adjusting the rotation angle of the wing 40 according to the wind power.

Therefore, the present invention is to automatically find the wind direction, the angle of expansion of the wing is variable according to the wind pressure to properly solve the wind pressure strength applied to the wing to prevent the occurrence of damage to the wind turbine itself, such as wings or towers At the same time, wind power is maximized by maximizing wind power efficiency, and when wind is strong, wind power generation is achieved while minimizing wind resistance.

 Wind turbine, tower, rudder, wing, slider

Description

Wind power generators

1 is a schematic side view showing a wind power generator according to an embodiment of the present invention.

Figure 2 is a schematic side view showing a state in which the wing of the wind turbine is folded according to an embodiment of the present invention.

3 is a schematic view of the wind generator according to the embodiment of the present invention seen from the left side.

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

Figure 5 is a side view showing a wind power generator according to another embodiment of the present invention.

Figure 6 is a side view showing a folded state of the wind turbine generator according to another embodiment of the present invention.

7 is a side view showing a state where an intermittent brake is installed on a rotating body of a wind turbine according to another embodiment of the present invention.

8 is a side view showing a state in which the folding angle of the blade is controlled by the intermittent brake of the wind turbine according to another embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

10: tower 12: bearing 14: generator

20: rotating body 21: vertical axis 22: rotating plate

24: rotating shaft 25: auxiliary rotating shaft 26: extension shaft

26a: thread 28: direction key 29: auxiliary wing

30: wing hinge axis 32: stopper 32a: thread

34: slider 36: connection link 38: support bracket

40: wing 42: tension spring 50: wing

52: generator 54: shaft 56: rotation angle adjustment rod

58: spring 60: rotating body 62: intermittent brake

64 wing hinge axis 66 rotating plate 66a through hole

68: auxiliary rotating plate 68a: through hole

The present invention relates to a wind power generator, and more specifically, the rotor automatically finds the wind direction, and the angle of expansion of the wing is varied according to the wind pressure, thereby appropriately resolving the wind pressure strength applied to the wing of the wind power generator itself such as a wing or a tower. At the same time to prevent the occurrence of damage, while receiving the wind as much as possible in the wind to maximize the wind power generation efficiency, and in the strong winds to minimize the wind resistance while the wind power generator is to continue to be made.

In general, a wind power generator refers to a device that supplies electricity to each consumer by converting rotational energy of a blade rotated by wind power into electrical energy.

These wind turbine generators are classified into propeller-type horizontal shaft wind turbines, vertical shaft wind turbines such as gyro mill and Darius, and vertical horizontal shaft integrated wind turbines according to the direction of rotation of the blade. The back is very economical and does not cause environmental pollution.

Looking at the wind turbine of the prior art as an example, a rotating body rotatably installed on the top of the tower, a large diameter blade installed at the tip of the rotating body rotated by wind, and an increaser for increasing the rotational force of the wing And a generator for converting the rotational force increased in the gearbox into electrical energy.

However, in the wind turbine of the prior art, since the blades are fixed, wind loads are applied to the blades as well as the wind turbines themselves, especially towers, due to the wind pressure applied to the blades when a strong wind such as a typhoon blows. And it had a problem that the tower is damaged, such as broken or broken.

On the other hand, if the diameter of the wing is reduced to solve such a problem, it is possible to prevent the problem that the wing or other facilities are damaged by the strong wind to some extent, but on the contrary, the wind power generation is not performed properly for the weak wind. I had a problem.

The present invention has been made in order to solve the problems of the prior art, the rotating body automatically finds the wind direction, by varying the expansion angle of the wing in accordance with the wind pressure to properly solve the wind pressure strength applied to the wing wind power such as wings or towers It is possible to prevent damage of the generator itself, and to maximize the wind power efficiency by receiving as much wind as possible in the wind, and to provide a wind power generator that allows the wind power generation to continue while minimizing the wind resistance during strong winds. There is this.

Wind turbine according to the present invention for achieving the above object is a cylindrical rotating body that is supported by a vertical axis to the top bearing of the tower is rotated axially to be horizontal to the top of the vertical axis; A rotating shaft having a generator installed at the front end of the rotating body and integrally formed with the shaft of the generator so as to be axially rotated in the cylindrical rotating body and having a rotating plate attached to the rear end thereof; A plurality of wing hinge shafts which are installed at equal intervals along the outer surface edge of the rotating plate and are staggered with a predetermined angle with respect to the center line of the rotating shaft; A plurality of wings installed at one end hinged to the wing hinge shaft and pivoted about the wing hinge shaft; And it comprises a rotation angle adjusting means that can adjust the rotation angle of the wing according to the wind power.

In the wind power generator according to the present invention, the rotation angle adjusting means extends by a predetermined length in the axial direction from the center of the rotating plate and an extension shaft provided with a stopper at its extension end; A slider sliding on the extension shaft; Connecting links hinged to the slider and the plurality of wings, respectively; And a spring disposed between the rotary plate and the slider and both ends of which are fixed to the rotary plate and the slider, respectively.

In addition, in the wind power generator according to the present invention, the rotation angle control means, the rotation angle control rods having one end fixed to each blade and the other end extending toward the generator; And a plurality of springs connecting the end portions of the respective rotation angle adjusting rods to each other to form a closed curve of a predetermined shape.

In addition, in the wind power generator according to the present invention, one end portion is provided with an intermittent brake that surrounds the outer periphery spaced apart from the respective rotation angle adjustment rods and the other end is fixed to the rotation body to control the rotation angle adjustment rod to be opened. desirable.

In addition, in the wind power generator according to the present invention, the wing hinge shaft is fixedly supported at both ends by a pair of support brackets spaced apart a predetermined distance along the outer surface edge of the rotating plate and different from each other in height by the inclination angle of the wing hinge shaft. It is preferable.

In addition, in the wind turbine generator according to the present invention, the wing hinge shaft is spaced apart from the outer surface of the rotating plate and the through hole of these rotating plate and the auxiliary rotating plate formed on the same line as the inclination angle of the wing hinge shaft between the auxiliary rotating plate connected by the rotating shaft. It is preferable to penetrate and be fixed.

In addition, in the wind power generator according to the present invention, it is preferable that a direction key of a plate shape extending in a predetermined length along the axial direction and inclined upward toward the rear side so as to easily find the direction of the wind on the rotating body. The direction key may be provided with a thicker width toward the rear.

In addition, in the wind power generator according to the present invention, it is preferable that the generator is provided with an auxiliary rotary shaft concentric with the shaft which is the rotor and is integrally connected to the front thereof, and further provided with auxiliary blades fixed to the front end of the auxiliary rotating shaft. .

Hereinafter, with reference to the accompanying drawings will be described in more detail the wind power generator according to the present invention.

As shown in Figures 1 to 3, the wind power generator according to an embodiment of the present invention is supported by the vertical axis 21 to the top bearing 12 of the tower 10 is rotated axially and the top of the vertical axis 21 The cylindrical rotating body 20 integrally formed horizontally, and the generator 14 is installed at the tip of the rotating body 20, and integral with the shaft of the generator 14 to the cylindrical rotating body 20. It is installed to be rotated through the shaft and the rotary shaft 24 is attached to the rear end in the upright end, and are installed at equal intervals along the outer edge of the rotary plate 22, but at a predetermined angle with respect to the centerline of the rotary shaft 24. A plurality of wing hinge shafts 30 are alternately provided with a plurality of wings 40 and the wings installed so that one end is hinged to the wing hinge shaft 30 and rotated based on the wing hinge shaft 30. Rotation angle adjustment to adjust the rotation angle of 40 according to the wind power It is a structure including a means.

The pivot 20 is installed on the top of the tower 10 is installed vertically upwards from the ground, the top of the tower 10 is horizontal to the top of the vertical shaft 21 rotatably supported by a bearing 12 It is cylindrical shape provided in the direction. In other words, the rotating body 20 should be able to rotate according to the direction of the wind when viewed in a plan view, and the rotating shaft 24 is installed inside the rotating body 20 so as to be freely rotatable.

The vertical shaft 21 is fasteners such as nuts are fastened to the lower end to prevent the tower 10 from being separated.

In addition, an upper circumferential surface of the pivot 20 is provided with a triangular plate-shaped direction key 28 extending in a predetermined length along the axial direction and inclined upward toward the rear so as to easily find the direction of the wind. The direction key 28 is preferably provided with a thicker width toward the rear in order to more smoothly the flow of the wind and to find the direction of the wind more quickly.

In addition, a general generator 14 having a shaft as a rotor is mounted at the front end of the rotating body 20, and the generator 14 includes a rotating shaft 24 passing through the rotating body 20 at the rear end thereof. Of course, the shaft end of the generator 14 is connected to the auxiliary rotary shaft 25 is integrally connected, the auxiliary rotary shaft 25 is provided with an auxiliary wing 29 to serve as an auxiliary role of the wind power generation.

The rotating shaft 24 is a cylindrical shape that extends along the direction of the center axis of the rotating body 20 perpendicular to the vertical axis 21, the shaft is rotated, the front end is connected to the shaft of the generator 14, and then At the end, a disk-shaped rotating plate 22 is mounted upright.

The wing hinge shaft 30 is spaced apart at equal intervals along the outer edge of the rotating plate 24, but is inclined staggered with a predetermined angle with respect to the axis direction of the rotating shaft 24. In more detail, the wing hinge shaft 30 is a pair of support brackets spaced apart by a predetermined distance along the outer edge of the rotating plate 22 and different from each other in height by the inclination angle of the wing hinge shaft 30. Both ends are fixedly supported at 38, respectively.

The wing 40 has a plate shape whose one end is rotatably coupled to the wing hinge shaft 30 and the other end extends by a predetermined distance in a slightly twisted shape and is rotated based on the wing hinge shaft 30. to be. In addition, one end portion hinged to the wing hinge shaft 30 has a cylindrical shape so that the cylindrical wing hinge shaft 30 can penetrate, and one end portion of the connection link 36 is hinged to a predetermined portion of the other end thereof. It is connected.

The rotation angle adjusting means is to adjust the rotation angle of the wing 40 so that the wing 40 is folded and spread according to the wind power. Looking at the configuration thereof, an extension shaft 26 extending from the center of the rotating plate 22 by a predetermined length in the axial direction and provided with a stopper 32 at an extension end thereof, and a slider sliding on the extension shaft 26 ( 34 and a connecting link 36 hinged to the slider 34 and the plurality of vanes 40, and between the rotary plate 22 and the slider 34, both ends of which are connected to the rotary plate 22 and The tension spring 42 is fixed to the slider 34, respectively.

Here, the stopper 32 is able to move along the extension shaft 26 to adjust the sliding length of the slider 34. More specifically, since the thread 26a is formed on the outer circumferential surface of the extension shaft 26 and the thread 32a is formed on the inner circumferential surface of the stopper 32 corresponding thereto, the slider is screwed while rotating the stopper 32. The position of 34 can be adjusted.

It will be described in detail the operation of the wind power generator of the present invention according to such a configuration.

First, when the wind blows, the rotating body 20 is automatically rotated in a direction corresponding to the direction of the wind by the direction keys 28 and the wings 10 installed on the outer circumferential surface thereof. That is, the rotating body 20 has a shape in which the generator 14 is placed at the front side and the blade 40 is placed at the rear side so as to face the wind direction. Then, the blade 40 inclined by the wind is rotated, and accordingly, the extension shaft 26 and the rotation shaft 24 on which the blade 40 is installed are rotated, and the generator 14 is integrated with the rotation shaft 24. The rotor, which is the rotor of the shaft, is rotated to produce power in the generator 14.

In addition, the electric power produced by the generator 14 is transmitted to a transmission line or power storage device on the ground through a wire (not shown).

In this way, if a strong wind pressure caused by bad weather such as gusts or typhoons during use causes rapid wind pressure on the wing 40, the rotation speed of the wing 40 is excessively increased, and at this moment, the wing is pushed by a strong wind pressure. The angle of rotation of the wing hinge shaft 30 is tilted backwards by a predetermined angle and the expansion angle of the wing 40 is also changed, thereby causing an expansion angle variable phenomenon.

Since each blade 40 is connected to one slider 34 through a connecting link 36, the plurality of blades 40 are simultaneously rotated back and forth by wind power, respectively, while each connecting link ( 36 is pushed backward so that the slider 34 slides backward along the extension axis 26.

The slider 34 is slid until the sliding is prevented by the stopper 32 at the end of the extension shaft 26, and thus the distance between the slider 34 and the rotating plate 22 is as far as the slider 34 is slid. Since the tension spring 42 connected to the tension is tensioned, the elastic spring (tensile force) capable of restoring the tension spring 42 to its original size is provided.

As the blade 40 is inclined to the rear side due to the wind pressure and is inclined, the rotational speed is reduced because the wind 40 is less affected by the wind than the initial position, and thus the rotational force transmitted to the generator 14. Also, since the overload of the generator 14 is prevented and the like, the entire system of the wind turbine is protected, and thus continuous wind power is generated.

In particular, since the wing hinge shaft 30 is provided with a predetermined angle of inclination with respect to the center line of the rotation shaft 24 and the extension shaft 26, the wing hinge shaft 30 is rotated backward by a predetermined angle with respect to the wing hinge shaft 30. In addition, the expansion angle of the wing 40 is also changed, so that the variable phenomenon of the expansion angle is generated, and as a result, the contact area of the wing 40 facing the wind is drastically reduced, so that the axis of rotation can be changed even in a sudden wind pressure of gust or typhoon. By minimizing the operation of 24), the wind turbine's entire system is safely protected even under sudden overload, and continuous wind power generation is possible.

In this state, when the strength of the wind decreases again, the slider 34 is pulled by the elastic restoring force of the tension spring 42, which is tensioned, so that the slider 34 is returned to its original state and the connection link 36 connected to the slider 34 is pushed. Will be, in conjunction with this wing 40 is pushed by the connecting link 36 is to be unfolded in its original state.

On the other hand, if the blade 40 is rotated so much that the rotation of the blade 40 falls, so the amount of wind power is reduced. In this case, if the position of the stopper 32 is moved to the inside of the extension shaft 26 to shorten the moving length of the slider 34, the rotation angle of the blade 40 is slightly folded and the rotational force of the blade 40 is high. As a result, wind power can be increased.

As such, the wing 40 is automatically folded and unfolded so as not to cause damage to the wing 40 and the overall system of the wind turbine according to the strength of the wind speed, and thus it is possible to continuously and efficiently perform wind power in an emergency such as a typhoon. Will be.

4 to 8 show a wind turbine according to another embodiment of the present invention. Here, the generator 52 and the rotating body 60 are integrally mounted on the upper end of the vertical shaft, and the rotary shaft 54 extends to the rear end of the shaft, which is a rotor of the generator 52, and the blades are provided on the rotary shaft 54. Rotating angle adjusting means for adjusting the rotating angle of 40 according to the wind is provided.

The rotation angle adjusting means is spaced apart by a predetermined distance in the axial direction to the rotating shaft 54 is fixed to the rotating plate 66 and the auxiliary rotating plate 68, the rotary plate 66 and the auxiliary rotating plate 68 of the rotating shaft 54 A wing hinge shaft 64 is provided through the through holes 66a and 68a drilled to have a predetermined inclination angle with respect to the axial direction, and one end is hinged to the wing hinge shaft 64 to be folded at a predetermined angle. A plurality of wings 50 are installed to be spread. The rotating plate 66 and the auxiliary rotating plate 68 may be provided as one unit to be assembled and fixed to the rotating shaft 54, or may be directly provided to the rotating shaft 54.

One end is fixed to each wing 50 at the wing 50 hinged to the wing hinge shaft 64, and the other end thereof is rotated in parallel with the rotation shaft 54 toward the generator 52. 56 is extended, and each of the rotational angle adjusting rods 56 ends is connected with each other, and a spring 58 is provided in a closed triangle shape. By the structure of the spring 58, the wings 50 are folded or unfolded by the wind, the speed or strength is almost uniform.

The rotation angle adjusting rod 56 is connected to a predetermined portion of the wing hinge shaft 64 and the wing 50 which is adjacent to each other to form a shape substantially perpendicular to each other so as to be sensitive to the strength of the wind. That is, as an example, as the rotation angle adjusting rod 56 is connected to a position away from the wing hinge shaft 64, the wing 50 becomes stronger in resistance to wind power, and consequently, the wing 50 is almost fixed. It becomes equal.

In order to give a certain braking force to the outer circumferential portion of the rotation angle adjusting rod 56 while suddenly opening up in the outward direction of the rotation angle adjusting rod 56, one end thereof is rotated as shown in FIGS. 7 and 8. A cylindrical intermittent brake 62 is provided which surrounds the outer circumferential portion spaced apart from the adjustment rod 56 by a predetermined distance and whose other end is fixed to the pivoting body 60.

In addition, a direction key (not shown) or an auxiliary wing (not shown) may be selectively installed in the wind power generator according to the other embodiment.

As described above, the wind power generator according to the present invention is to damage the wind generator itself, such as wings or towers by appropriately resolving the wind pressure strength applied to the wing as the rotor automatically finds the wind direction and the angle of expansion of the wing is changed according to the wind pressure It is possible to prevent the occurrence of wind, wind power is maximized by maximizing wind power efficiency in the case of breeze, wind power generation is made continuously while minimizing wind resistance in strong wind.

Claims (7)

delete delete A cylindrical pivot supported on the top bearing of the tower to be axially rotated and integrally formed horizontally on an upper end of the vertical shaft; A rotating shaft having a generator installed at the front end of the rotating body and integrally formed with the shaft of the rotating body so as to be axially rotated through the cylindrical rotating body, and a rotating plate mounted upright at the rear end thereof; A plurality of wing hinge shafts which are installed at equal intervals along the outer surface edge of the rotating plate and are staggered with a predetermined angle with respect to the center line of the rotating shaft; A plurality of wings installed at one end hinged to the wing hinge shaft and pivoted about the wing hinge shaft; And in the wind power generator comprising a rotation angle adjusting means for adjusting the rotation angle of the wing according to the wind power, The rotation angle adjustment means, the rotation angle adjustment rods, one end of which is fixed to each of the wings and the other end of which extends in parallel with the rotation axis toward the generator; Wind turbines, characterized in that it comprises a plurality of springs connecting the end of each rotation angle adjustment rod to form a closed curve of a predetermined shape. The method of claim 3, The rotating body is provided with an intermittent brake for regulating the rotation angle adjustment rod to surround the respective rotation angle adjustment rod and the outer peripheral portion spaced apart a predetermined distance. A cylindrical pivot supported on the top bearing of the tower to be axially rotated and integrally formed horizontally on an upper end of the vertical shaft; A rotating shaft having a generator installed at the front end of the rotating body and integrally formed with the shaft of the rotating body so as to be axially rotated through the cylindrical rotating body, and a rotating plate mounted upright at the rear end thereof; A plurality of wing hinge shafts which are installed at equal intervals along the outer surface edge of the rotating plate and are staggered with a predetermined angle with respect to the center line of the rotating shaft; A plurality of wings installed at one end hinged to the wing hinge shaft and pivoted about the wing hinge shaft; And in the wind power generator comprising a rotation angle adjusting means for adjusting the rotation angle of the wing according to the wind power, The wing hinge shaft is a wind turbine, characterized in that both ends are fixedly supported by a pair of support brackets spaced apart by a predetermined distance along the outer edge of the rotating plate and the height of each other by the inclination angle of the wing hinge shaft. A cylindrical pivot supported on the top bearing of the tower to be axially rotated and integrally formed horizontally on an upper end of the vertical shaft; A rotating shaft having a generator installed at the front end of the rotating body and integrally formed with the shaft of the rotating body so as to be axially rotated through the cylindrical rotating body, and a rotating plate mounted upright at the rear end thereof; A plurality of wing hinge shafts which are installed at equal intervals along the outer surface edge of the rotating plate and are staggered with a predetermined angle with respect to the center line of the rotating shaft; A plurality of wings installed at one end hinged to the wing hinge shaft and pivoted about the wing hinge shaft; And in the wind power generator comprising a rotation angle adjusting means for adjusting the rotation angle of the wing according to the wind power, The wing hinge shaft is installed on the rotating plate and the auxiliary rotating plate is spaced apart by a predetermined distance in the axial direction from the rotation axis, but the wind turbine is characterized in that it is fixed through the through-holes of the rotating plate and the auxiliary rotating plate formed on the same line as the inclination angle of the wing hinge shaft generator. A cylindrical pivot supported on the top bearing of the tower to be axially rotated and integrally formed horizontally on an upper end of the vertical shaft; A rotating shaft having a generator installed at the front end of the rotating body and integrally formed with the shaft of the rotating body so as to be axially rotated through the cylindrical rotating body, and a rotating plate mounted upright at the rear end thereof; A plurality of wing hinge shafts which are installed at equal intervals along the outer surface edge of the rotating plate and are staggered with a predetermined angle with respect to the center line of the rotating shaft; A plurality of wings installed at one end hinged to the wing hinge shaft and pivoted about the wing hinge shaft; And in the wind power generator comprising a rotation angle adjusting means for adjusting the rotation angle of the wing according to the wind power, The generator is provided with an auxiliary rotary shaft concentric with the shaft which is the rotor and extends forward, further comprising an auxiliary wing that is pinched on the tip of the auxiliary rotary shaft.

Images