KR20130125532A - Wind power generator - Google Patents

Abstract

The present invention relates to a wind power generator which efficiently receives the power of wind from various directions and converts the power into energy for generating electricity. The present invention includes at least two hinge supporters formed in all directions of a rotary shaft by being connected to the rotary shaft; at least two blade units, which include blades slid in an axial direction of the rotary shaft and spread and which are joined to hinge shafts of the hinge supporters formed in a direction parallel to the axial direction of the rotary shaft, to be rotated; and a blade opening unit. The blade opening unit is connected to a first blade unit swung around the hinge shaft by wind power and second and third blade units which adjoin the first blade unit; spreads one first blade among first blades of the second and third blade units by being interlocked with the swing of the first blade unit; and folds the other second blade. The present invention provides an effect improving the efficiency of power generation by inducing the movement of the blades sensitively reacting to wind from various directions.

Description

Wind power generators

The present invention relates to a wind turbine, and more particularly, to a wind turbine that converts energy into wind energy by efficiently receiving wind from wind blowing from various directions.

The wind turbine generator is a device that generates electric power using wind. Such a wind turbine generator may be classified into a horizontal shaft wind turbine generator and a vertical shaft generator according to the installation direction of a blade. In the horizontal shaft power generating device, the rotating shaft faces the wind like a propeller. This requires yawing control according to the direction of the wind.

On the other hand, vertical axis wind turbines, where the axis of rotation stands perpendicular to the ground, do not need yawing control like horizontal shaft generators. This is because vertical axis wind turbines can generate power using wind from all directions. Such a vertical axis wind power generation device has the advantage that can be installed in the city in addition to the vast open area or the sea.

However, such a vertical axis wind turbine generator has a problem of low energy conversion efficiency.

Accordingly, an object of the present invention is to provide a wind turbine generator having a high power generation efficiency as a vertical shaft wind turbine generator.

In addition, an object of the present invention is to provide a wind power generator that can increase the power generation efficiency even in low wind speed, hard directional wind.

The present invention for achieving the above object is at least two hinge supports connected to the rotary shaft formed in the radial direction of the rotary shaft; At least two wing parts including a blade that is slidably extended in the axial direction of the rotation shaft, and rotatably coupled to a hinge axis of the hinge support formed in a direction parallel to the axial direction of the rotation shaft; Among the wing parts, the first wing part is turned around the hinge axis by wind power, and is connected to the second wing part and the third wing part adjacent to the first wing part, and interlocked with the tilting of the first wing part. The blade opening and closing portion that extends the first blade of any one of the second wing and the third wing, and folding the other second blade; provides a wind power generating device comprising a.

Preferably, the blade opening and closing portion, the guide block is fixed to the rotating shaft and the end of the first wing is inserted; A first elastic member interposed between an inner surface of the guide block and an end of the first wing part to provide a restoring force in a direction opposite to a rotational direction of the first wing part; A first wire extending the first blade by connecting the first blade and an end of the first wing and interlocking with the rotation of the first wing to pull the first blade; and the second blade and the It may include; a second wire for folding the second blade by connecting the end of the first wing, by pulling the second blade in conjunction with the rotation of the first wing.

Preferably, a blade opening holding part which is coupled to a blade part disposed at one outermost side and a blade part disposed at the outermost side of at least two blade parts constituting the blade, provides a restoring force so that the blade is slid and folded. It may further include.

Preferably, the direction determination block is formed on the rotation axis, the at least two slots formed in the radial direction corresponding to the wing position; A blade opening / closing auxiliary part connected to an upper part of the rotating shaft with a ball joint and guided to one of the slots in a state where an end is inserted into the direction determining block, and rotated about the ball joint by wind power; A second elastic member included in the slot and interposed between an inner surface of the direction determining block and an end of the blade opening / closing auxiliary part to provide a restoring force in a direction opposite to the rotation direction of the blade opening / closing auxiliary part; and the first blade and the regular blade. And a third wire extending the first blade by connecting an end of the opening / closing auxiliary part and interlocking with the rotation of the blade opening / closing auxiliary part to pull the first blade.

Preferably, the wing portion, the first frame and the second frame which is formed to be rotatable about the same axis; And a third frame connecting the first frame and the second frame to form an area for spreading the blades, wherein the third frame. It can be formed in a multi-stage form to be expanded and contracted in the longitudinal direction.

Preferably, the motor formed inside the third frame; A rack bar engaged with the rotation shaft of the motor and coupled to the innermost end of the third frame; A wind speed sensor formed on the rotating shaft; and a controller connected to the wind speed sensor and the motor and controlling driving of the motor such that the third frame is reduced in the longitudinal direction when the measured value of the wind speed sensor is equal to or greater than a predetermined reference value; It may include.

Preferably, the rotating shaft is provided with an upper slot formed downwardly curved and having an uneven portion at the lower side, a lower slot formed opposite the upper slot and formed upwardly curved and having an uneven portion formed at an upper side thereof, and the hinge support The wind power generator is inserted into the upper slot and the lower slot is formed to be rotated step by step in the radial direction axial direction.

According to the wind power generation device according to the present invention, by providing a wing portion including a blade that is slid and spread, by providing a configuration in which the blades of the neighboring wing portion is expanded or folded in conjunction with the movement of the wing portion flipped by the wind, It provides an advantageous effect of increasing the power generation efficiency by inducing the movement of the blade sensitive to the wind blowing from the direction.

1 is a view showing the configuration of a preferred embodiment of a wind turbine generator according to the invention,
2 is a view showing the configuration of the blade opening and closing portion of the embodiment shown in FIG.
3 is a view showing a second wing portion and a third wing portion in which the blade is unfolded or folded in conjunction with the first wing portion to be flipped;
4 is a view schematically illustrating the unfolded state and the folded state of the blade of each wing during the rotation process of the embodiment shown in FIG.
5 is a view showing the blade opening holding portion of the embodiment shown in FIG.
6 is a view showing a configuration of a direction determination block into which the blade opening and closing aid of the embodiment shown in FIG. 1 is inserted;
7 is a view showing a second elastic member included in the direction determination block shown in FIG. 6;
8 is a view showing the blade opening and closing portion connected to the ball joint to the rotating shaft,
FIG. 9 is a view illustrating a second wing portion in which a blade is unfolded in association with the turning of the blade opening and closing portion of the embodiment illustrated in FIG. 1;
FIG. 10 is a view showing a frame of a wing portion configured in a multistage form in the wing portion of the embodiment shown in FIG. 1; FIG.
FIG. 11 is a view illustrating an internal configuration for expanding and shortening a multi-stage frame of a wing portion shown in FIG. 10;
FIG. 12 is a view illustrating a state in which a multi-stage frame of a wing part illustrated in FIG. 10 is shortened to reduce an area where a blade is unfolded;
FIG. 13 is a view illustrating a configuration of an upper slot and a lower slot formed on a rotating shaft of the embodiment illustrated in FIG. 1;
14 is a view showing a state in which the wing portion rotates in the radial direction of the axis of rotation by moving the hinge support along the upper slot shown in FIG.
15 is a view showing a state in which the wing portion rotates in the radial direction of the axis of rotation by moving the hinge support along the lower slot shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In addition, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

The present invention relates to a vertical axis wind turbine generator in which the axis of rotation stands perpendicular to the ground. The present invention comprises a wing portion comprising a blade composed of at least two blade parts and slides in the axial direction of the rotation axis, and the technical feature that the blade of the neighboring wing is unfolded or folded in conjunction with the swing of the specific wing have.

1 is a view showing the configuration of a preferred embodiment of the wind turbine generator according to the present invention, Figure 2 is a view showing the configuration of the blade opening and closing portion of the embodiment shown in FIG.

1 and 2 illustrate only those parts which are characterized in order to conceptually clearly understand the constructional relationship for the preferred embodiment of the present invention, and as a result, various modifications of the drawings are expected, and the present invention is greatly improved in the specific forms shown. There is no need to be limited.

1 and 2 clearly show only the main features in order to conceptually clearly understand the present invention, and as a result, various modifications of the drawings are contemplated, and the scope of the present invention is limited by the specific shapes shown in the drawings. There is no need to be limited.

Referring to FIGS. 1 and 2 in parallel, the illustrated wind power generator includes a plurality of wings including a plurality of hinge supports 100 radially formed on the rotational shaft 10 and a blade 201 that slides out. The blade 200 includes a blade opening / closing part 300 that extends or folds the blades 201 of the neighboring wing parts 200 in association with the bending of the predetermined wing part 200.

First, the hinge support 100 and the wing 200 will be described.

1 and 2, the hinge support 100 is radially formed on the rotation shaft 10. And the hinge axis provided at the end of the hinge support 100 is provided in a direction parallel to the rotary shaft (10). The hinge support 100 is spaced apart at regular intervals along the circumference of the rotating shaft 10 corresponding to the number of the wing 200.

In one embodiment, the hinge support 100 may be formed so that the upper frame and the lower frame is spaced apart, the end of the upper frame and the end of the lower frame is connected to the hinge axis.

1 and 2, the wing unit 200 is rotatably coupled to the hinge axis of the hinge support 100 described above. The end of the wing 200 is inserted into the guide block (320 of FIG. 2) of the blade opening and closing portion 300 to be described later. Accordingly, the rotation range of the wing 200 around the hinge axis of the hinge support 100 is limited by the guide block 320 of FIG. 2.

Hereinafter, the wing 200 is rotated by the wind power, around the hinge axis of the hinge support 100 is expressed as "wing 200 is flipped" or "wing of the wing 200".

The wing portion 200 includes a blade 201 that is slid and expanded or folded. The wing 200 has a blade 201 located in a frame constituting the outer shape. The blade 201 is configured by combining a plurality of blade parts. Each blade part is formed so that the end is rotatable about the same axis. The number of blade parts can be appropriately changed according to the size and shape of the wing 200.

In FIG. 1 and FIG. 2, four wing parts 200 are illustrated. Hereinafter, in describing the present invention, the wing portion directly affected by the wind blowing from the predetermined direction by being positioned opposite to the wind direction is defined as the “first wing portion 210”. In addition, among the wings adjacent to the first wing portion 210, the wing portion in which the blades are defined as the “second wing portion 220”. In addition, the wing portion in which the blade is folded among the wing portions adjacent to the first wing portion 210 is defined as “third wing portion 230”.

Meanwhile, the first blade 202 refers to the blade of the second wing 220, and the second blade 203 refers to the blade of the third wing 230.

In addition, the blade opening and closing portion (520 of FIG. 1) is further provided at the upper end of the rotating shaft 10. The blade opening / closing aid 520 provides auxiliary power for unfolding the first blade 202 of the second wing 220. This is described in detail later.

Next, the blade opening and closing portion 300 will be described.

The blade opening / closing unit 300 extends the first blade 202 of the second wing unit 220 in conjunction with the wetting of the first wing unit 210, and opens the second blade 203 of the third wing unit 230. It serves to fold.

2, the guide block 310 includes a first elastic member 320, a first wire 330, and a second wire 340. The guide block 310 is fixed to the rotation shaft 10 and forms a space into which the end of the first wing portion 210 is inserted. The first elastic member 320 is installed inside the guide block 310. The first elastic member 320 is connected to the inner surface of the guide block 310 and the first wing 210 to provide a restoring force to rotate in a direction opposite to the direction of rotation of the first wing 210.

The first wire 330 connects an end of the first blade 202 and the first wing 210 of the second wing 220. The first wire 330 is connected to the end of the first wing 210 via the first pulley 20 in the first blade 202.

The second wire 340 connects an end of the second blade 203 and the first wing 210 of the third wing 230. The second wire 340 is connected to the end of the first wing 210 via the first pulley 20 in the second blade 203.

Hereinafter, an operation process of the blade opening and closing part 300 will be described with reference to FIGS. 3 and 4.

FIG. 3 is a view illustrating a second wing and a third wing in which the blades are unfolded or folded in conjunction with the first wing being folded, and FIG. 4 is a view illustrating blades of each wing during the rotation process of the embodiment shown in FIG. 1. It is a figure which shows the expanded state and the folded state typically.

The first wires 330: 331, 332 are wires 331 connected to the first blade 202 forming an upper portion of the second wing 220, and a first portion forming a lower portion of the second wing 220. It is divided into a wire 332 connected with the blade 202. The second wires 340: 341 and 342 form a wire 341 connected to the second blade 203 forming an upper portion of the third wing 230, and a lower portion of the third wing 230. It is divided into a wire 342 connected to the second blade 203.

The second wing 220 is in a folded state, and the first wing 210 and the third wing 230 are in an unfolded state.

When the wind is blowing, the second wing 220 is flipped around the axis of rotation of the hinge support 100 by the wind. When the second wing 220 is folded, the first wire 330 and the second wire 340 are pulled. When the first wire 330 is pulled, the first blade 202 that is in the folded state is unfolded downward. On the other hand, when the second wire 340 is pulled, the second blade 203 which is in the unfolded state is folded downward.

That is, referring to FIG. 4, as shown in FIG. 4A, a first wing portion 210 facing the main wind direction is set. At this time, the first blade 202 of the second wing 220 is in an unfolded state, and the blade 201 of the first wing 210 and the second blade 203 of the third wing 230 are closed. It is a state. In FIG. 4, the marking of the blade in black refers to the unfolded state of the blade, and the marking of the blade in white refers to the folded state of the blade.

Thereafter, as shown in Figure 4 (b). The first wing part 210 is flipped by the wind power. As the first wing 210 is flipped, the first blade 202 of the second wing 220 begins to unfold. At the same time, the second blade 203 of the third wing 230 starts to be folded. At this time, the first wing unit 210 directly receives the wind, the wing unit 200 rotates around the rotation shaft 10 by the wind.

As shown in FIG. 4C, when the rotation of the wing 200 continues in the clockwise direction about the rotation shaft 10, the first blade 202 is mostly unfolded, and the second blade 203 is mostly folded. .

As shown in FIG. 4D, the second blade 220 is disposed at the position of the first blade 210 of FIG. 4A in a state where the first blade 202 is fully extended. The first wing 210 is disposed at the position of the third wing 230 of FIG. 4A. The third wing 230 is disposed in a fully folded state. At this time, while the second wing 220 is completely affected by the wind, as shown in the first wing 210 of FIG.

Thus, while repeating a series of processes shown in Figure 4 wing 200 continues to rotate. The rotating shaft 10 is rotated by the rotation of the wing 200, the rotating shaft of the generator connected to the rotating shaft 10 generates power while rotating.

5 is a view showing the blade opening holding portion of the embodiment shown in FIG.

The blade of each wing 200 may include a blade opening retainer 400 that provides restoring force to slide and fold.

This will be described with reference to FIG. 5 by taking the second wing 220 as an example. The blade opening holding part 400 is a blade part 202b disposed at one outermost side and a blade part 202b disposed at the outermost side of the blade parts constituting the blade 202 of the second wing 220. Is connected to. The blade open retainer 400 is composed of a tension spring to provide a restoring force to fold the first blade 202. This is to prevent the first blade 202 from being unfolded by its own weight and to allow the second blade 203 to be easily folded.

As described above, when the first wire 330 is pulled in conjunction with the bending of the first wing unit 210, the first blade 202 overcomes the restoring force of the blade opening holding unit 400 and is unfolded.

In one embodiment, the wind turbine generator may further include a blade opening and closing assistant 520 to induce the rotation of the wing 200 effectively regardless of the direction of the wind.

Hereinafter, the blade opening and closing assistant 520 will be described with reference to FIGS. 6 to 8.

FIG. 6 is a view illustrating a configuration of a direction block in which a blade opening and closing aid is inserted in the embodiment shown in FIG. 1, and FIG. 7 is a view illustrating a second elastic member included in the direction block shown in FIG. 6. 8 is a view showing the blade opening and closing portion connected to the ball joint to the rotating shaft.

The blade opening / closing assistant 520 is to assist the unfolding operation of the first blade 202 of the second wing 220. As shown in FIG. 1, the blade opening / closing auxiliary part 520 is disposed at the upper end of the rotation shaft 10. Specifically, the upper portion of the rotating shaft 10 and the ball joint 521 is coupled (see FIG. 8), and the lower end of the blade opening and closing assistant 520 is inserted into the direction determination block 510.

Referring to FIG. 6, the direction determination block 510 is formed on the rotary shaft 10 and a plurality of slots 511 are formed in the radial direction when the axial direction of the rotary shaft 10 is referred to. The position and the number of the slots 511 are formed to correspond to the position and the number of the wings 200. The slots 511 illustrated in FIGS. 6 and 7 have a cross shape. The top of the blade opening and closing assistant 520 is formed with a plane for receiving the wind is formed in a cross shape corresponding to the slot 511. The corner portion of the intersection area (near the center of the slot 511) of the slot 511 is preferably rounded.

The lower end of the blade opening and closing assisting part 520 is inserted into one of the slots 511 of the four slots 511 of the cross shape is moved.

7 and 8, a second elastic member 530 is installed in each slot 511 of the direction block 510. The second elastic member 530 is formed by connecting the inner surface of the direction determination block 510 and the lower end of the blade opening and closing assistant 520. The second elastic member 530 provides a restoring force to rotate in a direction opposite to the rotation direction of the blade opening and closing assistant 520 when the blade opening and closing assistant 520 is rotated about the ball joint 521 by the wind. do.

FIG. 9 is a view illustrating a second wing portion in which a blade is unfolded in association with the turning of the blade opening and closing portion of the embodiment illustrated in FIG. 1.

Referring to FIG. 9, the third wire 540 passes through the second pulley 30 fixed to the rotation shaft 10 and the lower end of the blade opening / closing aid 520 and the first blade 202 of the second wing 220. ). The third wires 540: 541, 542 are wires 541 connected to the first blade 202 forming the upper portion of the second wing 220, and first blades forming the lower portion of the second wing 220. Divided into a wire 542 connected with 202.

When the wind blows from any direction, the blade opening and closing assistant 520 is flipped in one direction by the wind. At this time, the direction in which the blade opening and closing auxiliary part 520 is folded is determined by the direction of the slot 511. When the blade opening and closing assistant 520 is flipped, the lower end of the blade opening and closing assistant 520 moves and pulls the third wire 540. When the third wire 540 is pulled, the first blade 202 of the second wing 220 is unfolded by the force.

Hereinafter, a configuration in which the blade spreading area of each wing 200 is adjusted will be described with reference to FIGS. 10 to 12.

FIG. 10 is a view illustrating a frame of a wing unit having a multistage configuration in the wing unit of the embodiment illustrated in FIG. 1, and FIG. 11 is an interior for expanding and shortening the frame of the multistage structure of the wing unit illustrated in FIG. 10. It is a figure which shows a structure, and FIG. 12 is a figure which shows the state which reduced the area | region in which the blade | wing is unfolded by shortening the multistage frame of the wing | blade part shown in FIG.

Referring to FIG. 10, in one embodiment, the wing 200 may be rotatable about an axis H formed on the center frame 207 and the first frame 204 and the second frame 205. It includes. The first frame 204 and the second frame 205 form the outline of the wing 200, and the space between the first frame 204 and the second frame 205 is the blade 201 is unfolded Form an area.

Meanwhile, the wing unit 200 includes a third frame 206 connecting the first frame 204 and the second frame 205 to form an area where the blade 201 is unfolded. The center of the third frame 206 is connected with the center frame 207. The third frame 206 is upwardly connected with respect to the center frame 207 and connected with the second frame 205 downwardly with respect to the upper frame 206a connected to the first frame 204 and the center frame 207. Divided into a lower frame 206b.

At this time, the third frame 206 is formed in a multi-stage form is formed to be expanded or reduced in the longitudinal direction. This is to adjust the area in which the blade 201 is unfolded in response to the wind power. For example, in climatic conditions affected by a typhoon, it is preferable to minimize the area where the blade 201 is deployed. This is because there is a high risk that the wind turbine will be damaged by the strong wind.

Referring to FIG. 11, an electric module including a motor 600 is installed in the third frame 206. A flexible rack bar 700 meshes with a gear coupled to a rotating shaft of the motor 600. The rack bar 700 engages with the innermost end of the third frame 206. Meanwhile, the motor 600 and the controller 900 are electrically connected to each other, and the controller 900 is electrically connected to the wind speed sensor 800. The control unit 900 and the wind speed sensor 800 are installed on the rotary shaft 10.

The wind speed sensor 800 detects wind speed. The controller 900 generates a control signal for driving the motor 600 to reduce the spreading area of the blade 201 of the wing 200 when the sensed wind speed exceeds a predetermined reference value. Here, the reference value for the wind speed means a maximum value for the wind speed at which the wind power generator can stably operate, and is a value that can be set by the user.

Referring to FIG. 12, when it is detected that the wind speed exceeds a reference value, the controller 900 drives the motor 600 and the motor 600 drives the rack bar 700. As the rack bar 700 moves in the direction of the center frame 207, the innermost end of the third frame 206 moves in the direction of the center frame 207. As a result, the third frame 206 having the multi-stage shape is reduced in the longitudinal direction.

13 is a view showing the configuration of the upper slot and the lower slot formed on the rotating shaft, Figure 14 is a view showing a state in which the wing portion rotates in the radial direction of the rotation axis by the hinge support moves along the upper slot. 15 is a view showing a state in which the wing portion rotates in the radial direction of the rotation axis by moving the hinge support along the lower slot shown in FIG.

Referring to FIG. 13, the upper slot 11 and the lower slot 12 are formed on the rotation shaft 10.

The upper slot 11 is formed to be curved downward and the concave-convex portion is formed on the lower side. The lower slot 12 is formed opposite the lower portion of the upper slot 11. The lower slot 12 is upwardly curved, and an uneven portion is formed on the upper side thereof.

The hinge support 100 is inserted into the upper slot 11 and the lower slot 12. Specifically, the hinge support 100 spans the uneven portion formed in the upper slot 11 and the lower slot 12. By applying an external force to the hinge support 100, it is possible to move the hinge support 100 along the upper slot 11 or the lower slot 12 step by step.

14 and 15, since the upper slot 11 and the lower slot 12 are formed to be curved to face each other, the hinge support 100 moving along the upper slot 11 or the lower slot 12. Rotates the radial direction of the rotary shaft 10 in the axial direction. As the hinge support 100 rotates, the wing part 200 rotates with the radial direction of the rotation shaft 10 as the axial direction.

The rotation range of the wing 200 is determined by the length of the upper slot 11 and the lower slot 12. Although not shown in the drawing, a separate shaft for fixing or unlocking the hinge support 100 inserted in the upper slot 11 and the lower slot 12 to the upper slot 11 and the lower slot 12 on the rotary shaft 10. Locking devices can be installed.

Thus, the present invention is configured to rotate the wing unit 200 in the radial direction of the rotational axis 10 in the axial direction, thereby providing an effect that can effectively generate power in response to various wind direction and wind speed.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are not intended to limit the technical spirit of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by the embodiments and the accompanying drawings. . The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

10: axis of rotation
100: hinge support
200: wing
201: blade
202: first blade
203: second blade
204: first frame
205: second frame
206: third frame
207: main frame
210: first wing
220: second wing
230: third wing portion
300: blade opening and closing portion
310: guide block
320: first elastic member
330: first wire
340: second wire
400: blade open holding part
510: direction decision block
520: blade opening and closing part
530: second elastic member
540: third wire
600: motor
700: rack bar
800: wind speed sensor
900:

Claims (7)

At least two hinge supports connected to the rotating shaft in a radial direction of the rotating shaft;
At least two wing parts including a blade that is slidably extended in the axial direction of the rotation shaft, and rotatably coupled to a hinge axis of the hinge support formed in a direction parallel to the axial direction of the rotation shaft;
Among the wing parts, the first wing part is turned around the hinge axis by wind power, and is connected to the second wing part and the third wing part adjacent to the first wing part, and interlocked with the tilting of the first wing part. To extend the first blade of any one of the second wing portion and the third wing portion, the blade opening and closing portion for folding the other second blade; Wind turbines comprising a. The method according to claim 1,
The blade opening and closing portion,
A guide block fixed to the rotation shaft and into which an end of the first wing part is inserted; A first elastic member interposed between an inner surface of the guide block and an end of the first wing part to provide a restoring force in a direction opposite to a rotational direction of the first wing part;
A first wire extending the first blade by connecting the first blade and an end of the first wing and interlocking with the rotation of the first wing to pull the first blade; and
A second wire folding the second blade by connecting the second blade and an end of the first wing and pulling the second blade in cooperation with the rotation of the first wing;
Wind power generation device comprising a. The method of claim 1,
It further comprises a blade opening holding unit for coupling to the blade part disposed at one outermost side and the blade part disposed at the other outermost of the at least two blade parts constituting the blade, so that the blade is slid and folded. Wind power generator characterized in. The method according to claim 1,
A directional block formed on the rotary shaft and having at least two slots formed in a radial direction corresponding to the wing position;
A blade opening / closing auxiliary part connected to an upper part of the rotating shaft with a ball joint and guided to one of the slots in a state where an end is inserted into the direction determining block, and rotated about the ball joint by wind power;
A second elastic member included in the slot and interposed between an inner surface of the direction determining block and an end of the blade opening / closing auxiliary part to provide a restoring force in a direction opposite to the rotation direction of the blade opening / closing auxiliary part; and
A third wire extending the first blade by connecting a first blade and an end of the blade opening / closing auxiliary part, interlocking with the rotation of the blade opening / closing auxiliary part, and pulling the first blade;
Wind power generation device comprising a. The method according to claim 1,
The wing portion
A first frame and a second frame rotatably formed about the same axis;
A third frame connecting the first frame and the second frame to form an area for spreading the blade;
The third frame is. Wind turbines, characterized in that the multi-stage configuration is formed to be expanded and contracted in the longitudinal direction. 6. The method of claim 5,
A motor formed inside the third frame;
A rack bar engaged with the rotation shaft of the motor and coupled to the innermost end of the third frame;
Wind speed sensor formed on the rotating shaft; And
A control unit connected to the wind speed sensor and the motor to control driving of the motor such that the third frame is reduced in the longitudinal direction when the measured value of the wind speed sensor is equal to or greater than a predetermined reference value;
Wind power generation device comprising a. The method of claim 1, wherein
The rotating shaft is provided with an upper slot formed downwardly curved and having a concave-convex portion at the lower side, and a lower slot formed opposite to the upper slot and formed upwardly curved and having an uneven portion at an upper side thereof.
The hinge support is inserted into the upper slot and the lower slot is a wind turbine generator, characterized in that it is formed rotatably in a radial direction in the axial direction.

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