KR101268466B1

KR101268466B1 - Slanted windmill

Info

Publication number: KR101268466B1
Application number: KR1020120127111A
Authority: KR
Inventors: 유병수
Original assignee: 유병수
Priority date: 2012-11-12
Filing date: 2012-11-12
Publication date: 2013-06-04
Also published as: WO2014073738A1

Abstract

PURPOSE: A clinodiagonal wind turbine is provided to include all of advantages of horizontal and vertical wind power generators, thereby utilizing wind power energy more effectively. CONSTITUTION: A clinodiagonal wind turbine comprises a blade structure(200) and a wing(230). The blade structure maintain a structure tilted at an angle forming an acute angle with respect to the ground surface and includes a rotating module(210) rotating with a plurality of blades by being joined to the blades. The blades circulates between a first position(Po1) extended vertically and upwardly from a fixed structure(100) and a second location(Po2) extended while being tilted at an angle forming an acute angle with respect to the ground surface in the rear side of the fixed structure and rotated.

Description

Slanted windmill

The present invention relates to a wind turbine for converting wind energy into mechanical energy, and more particularly, a first position of each wing provided in the wing structure extending vertically upward of the fixed structure, and extending at a predetermined angle to the rear of the fixed structure. It has a structure that rotates to rotate the second position to be, and the attitude and angle of each wing is automatically adjusted according to the wind power, and relates to a bent axis wind turbine to more effectively utilize the wind energy.

Existing fossil energy resources are not only gradually exhausted, but also pollute the global environment. For a long time, mankind has been trying to develop a clean alternative energy utilization device that is not exhausted and does not pollute the environment. Such clean alternative energy includes solar energy, wind energy, current energy, tidal energy, geo-thermal energy and bio-thermal energy. Etc.

On the other hand, a wind generator is used as a means for generating electricity using the wind energy.

The wind generator is composed of a wind turbine for converting wind energy into mechanical energy, and a generator for generating electricity by operating by the mechanical energy converted by the wind turbine.

On the other hand, the conventional wind turbine may be divided into a horizontal wind turbine is installed horizontally with respect to the ground shaft, and a vertical wind turbine is installed perpendicular to the ground shaft.

1 is a view showing the structure of a general horizontal wind power generator.

The horizontal wind power generator is the most common type of wind power generator having a structure in which a wing structure 20 having a plurality of wings 21 is mounted at an upper end of a vertically oriented column 10, and a simple structure provides high power generation efficiency. Although there are advantages that can be realized, it is difficult to smoothly generate electricity in turbulent winds such as wind direction changes or gusts, and it is difficult to maintain because major components are installed in high places. It has a disadvantage.

2 is a view showing the structure of a general vertical wind power generator.

The vertical wind power generator is a wind power generator having a structure in which a wing structure 20` having a cylindrical structure is mounted on a vertical rotating shaft 22, and enables smooth power generation regardless of the direction and wind quality of the wind, and has a low height. Due to this, there is an advantage in that it is easy to maintain and maintain main parts such as a speed increaser and a generator.

Republic of Korea Open Utility Model Publication No. 2010-0007436 (2010.07.22) Republic of Korea Patent Publication No. 2006-0084353 (2006.07.24)

The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a four-axis wind turbine to effectively utilize the wind energy by having the advantages of both a horizontal wind turbine and a vertical wind turbine. .

Another object of the present invention is to provide a bent-type wind turbine capable of preventing the breakage of the wing due to the gust, by allowing the wing to be folded or unfolded according to the wind strength, and capable of smooth driving regardless of the wind quality.

Still another object of the present invention is to provide a bent axis wind turbine which enables smooth operation regardless of the direction of the wind by allowing the wing structure to automatically rotate in a direction facing the wind according to the direction of the wind.

Another object of the present invention, each wing is composed of a plurality of wing splits, the plurality of wing splits are automatically rotated around the wing axis according to their linear speed to implement the optimum rotation environment for the wing structure It is to provide a bent axis wind turbine.

The present invention to achieve the object as described above and to solve the conventional drawbacks includes a fixed structure and a wing structure having a plurality of wings installed on the fixed structure for converting wind energy into mechanical energy. In the wind turbine, wherein the wing structure, while maintaining the structure inclined at an angle at an acute angle with respect to the ground, and coupled to the plurality of wings and includes a rotating module that rotates with a plurality of wings, each of the wings Provides a bent axis wind turbine that rotates through a first position extending vertically upwards of the fixed structure and a second position extending inclined at an acute angle to the ground to the rear of the fixed structure.

In another aspect, the present invention, the wing structure is made of a cylindrical structure, a plurality of wings are hinged to the outer surface is rotated to rotate with the wing; A rotary shaft installed to be movable in a direction parallel to the central axis of the rotary module while penetrating the center of the rotary module, the rotary shaft being connected to each wing through a connection link; And one end hinged to the rotary module, connected to the rotary shaft via a link link to provide a four-axis wind turbine consisting of a plurality of wings folded or unfolded like an umbrella while rotating around the hinge point by the movement of the rotary shaft do.

In another aspect, the present invention, by pushing or pulling the rotating shaft in conjunction with the wing structure in accordance with the strength of the wind acting on the wing having a push rod to be folded or unfolded, rotatably supporting the rotating module, It is provided with a rotatable structure to the fixed structure provides a bent axis wind turbine further comprising a support structure for the direction of the wing structure is made in accordance with the direction of the wind acting on the wing structure.

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According to the present invention having the above characteristics, a plurality of wings installed to extend in a radial structure around the rotating module extends while inclined downward toward the rear of the fixing structure and the first position extending vertically upward of the fixing structure. It is a structure that rotates while circulating in a second position, and has a structure similar to the wing structure of the horizontal wind power generator to take advantage of the horizontal wind power generator, and the advantages of the vertical wind power generator due to the low height of the wing structure. There is an effect that can be taken.

In addition, the plurality of wings provided in the wing structure has the effect of preventing damage to the wind turbine due to the gusts by rotating so that the wing structure is folded like an umbrella when the wind strength is strong.

In addition, the wing structure is automatically changed in the direction facing the wind, there is an effect capable of smooth driving regardless of the direction of the wind.

In addition, each wing is composed of a plurality of wing dividers, each wing divider rotates around the wing axis according to its own linear velocity and provides an optimal rotation environment has the effect of increasing the rotational efficiency of the wing structure have.

1 is a view showing the structure of a general horizontal wind power generator,
2 is a view showing the structure of a typical vertical wind power generator,
Figure 3 is a side view showing the structure of a bent axis wind turbine according to the present invention,
4 is a front view showing the structure of a bent axis wind turbine according to the present invention;
5 is a side view showing the structure of a fixed structure according to the present invention;
Figure 6 is a side view showing the structure of a wing structure according to the present invention,
7 is a detailed view of the portion 'A` of FIG.
8 is a side view showing a state in which the wing structure is folded,
9 is a perspective view showing the structure of a wing according to the present invention,
10 is a plan view showing the structure of a wing according to the present invention;
11 is a cross-sectional view showing a structure of a wing split body according to the present invention;
12 is a side view showing the structure of the supporting structure according to the present invention;
Figure 13 is a side view showing a state in which the support structure according to the present invention is inclined rearward.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

3 is a side view showing the structure of the bent axis wind turbine according to the present invention, Figure 4 is a front view showing the structure of the bent axis wind turbine according to the present invention.

The bent axis wind turbine according to the present invention is a device for converting wind energy into mechanical energy while the wing structure 200 rotates by wind power, and includes a fixed structure 100 and a wing structure 200.

Figure 5 shows a side view showing the structure of the fixed structure according to the present invention.

The fixed structure 100 is installed on the ground or offshore structure to support the wing structure 200.

The fixed structure 100 is to maintain the wing structure 200 as low as possible, the upper end is formed in a narrow conical structure than the lower end in order to enable a stable support of the wing structure (200).

Such a fixed structure 100 may be configured by having a conical structure by connecting a plurality of beams 101 to each other like a known truss.

Figure 6 is a side view showing the structure of the wing structure according to the invention, Figure 7 'A' part of Figure 6, Figure 8 is a side view showing a state in which the wing structure is folded.

3, 4, 6, and 7, the wing structure 200 is mounted on the upper end of the fixed structure 100, by converting the wind energy into mechanical energy by rotating by the wind, the rotating module 210 And a rotating shaft 220 and a plurality of wings 230.

The rotation module 210 is combined with a plurality of wings 230 to rotate together with the wings 230. The rotary module 210 is formed in a cylindrical shape as a whole, the front end portion 210a is coupled to the support structure to be described later, the rear end portion 210b is coupled to the plurality of wings 230.

The rotating shaft 220 is installed so as to have a structure through which the front and rear ends protrude from the rotating module 210 through the center of the rotating module 210. The rotating shaft 220 installed as described above has a structure capable of moving in a direction parallel to the central axis S of the rotating module 210 while being coupled with the rotating module 210.

On the other hand, the rotary shaft 220 and the rotary module 210 is coupled via a bearing (B1) for the smooth movement of the rotary shaft 220.

In addition, the rear end 220b of the rotary shaft 220 protruding from the rotary module 210 is coupled to the wing 230 via the connection link 240.

At this time, the connecting link 240 is composed of a plurality of each of the wings 230 and the rotating shaft 220 is independently connected, each of the connecting links 240 is hinged to one end of the wing 230, , The other end is installed in a hinged structure to the rotary shaft 220.

According to the structure of the wing structure 200 as described above, by the front and rear direction movement of the rotary shaft 220 a plurality of wings 230 rotates around the hinge point (P1) coupled with the rotary module 210 and the umbrella and It will be folded or unfolded together. Therefore, in the strong wind conditions such as gusts by moving the rotating shaft 220 to be folded a plurality of wings 230, it is possible to prevent damage to the wing structure 200 by the strong wind.

On the other hand, the movement of the rotating shaft 220 may be configured to move the rotating shaft 220 by using a separate actuator driven according to the strength of the wind detected by the anemometer, in this case, due to the additional use of the anemometer and actuator Since the structure is complicated and the installation cost increases, the rotating shaft 220 automatically moves according to the strength of the wind acting on the wing structure 200, and is preferably configured to fold or unfold the wing 230. .

Accordingly, the present invention, by supporting the support structure and the wing structure 200 to push or pull the rotating shaft 220, the wing structure 200 is automatically folded or unfolded according to the strength of the wind, the description of such a structure The following will be described in more detail in the process of explaining the structure of the support structure.

The plurality of wings 230 are installed to maintain a constant distance from each other on the circumference of the rear end portion (210b) of the rotary module 210, each wing 230 has an inner end (230a) to the rotary module (210) It is installed in a hinge-coupled and rotatable structure around the hinge point (P1).

At this time, each of the wings 230 at the time of rotation of the wing structure 200, the first position (Po1) standing up vertically above the fixed structure 100 and the acute angle with respect to the ground to the rear of the fixed structure 100. It is configured to rotate while circulating the second position Po2 extending inclined at an angle. Here, the first position Po1 is not limited only to the vertical upper portion of the fixed structure 100, but also includes a position close to the vertical.

As described above, the rotary module 210 and the rotary shaft 220 positioned at the rotation center of the wing structure 200 are rotated so that each blade 230 rotates while rotating the first position Po1 and the second position Po2. It has a structure inclined at an angle θ1 forming an acute angle with respect to the ground.

9 is a perspective view showing the structure of the wing according to the present invention, FIG. 10 is a plan view showing the structure of the wing according to the present invention, Figure 11 is a cross-sectional view showing the structure of the wing splitter according to the present invention.

Each wing 230 installed in the above structure is composed of a plurality of wing dividers 231, the plurality of wing dividers 231 are coupled to each other via a wing shaft 232, one wing ( 230).

As described above, a plurality of wing splitters 231 constituting one wing 230 are formed in different sizes, and the wing splitter 231 having a smaller size toward the outer end portion 230b of the wing 230 is disposed. In addition, one wing 230 formed by assembling a plurality of wing split bodies 231 has a fine twisted shape by a predetermined angle (θ2) from the inner end to the outer end, similar to the wing 230 of a general windmill.

On the other hand, the wing shaft 232 penetrates through the plurality of wing splitters 231 to combine the wing splitter 231 with each other, the center (C2) of the wing shaft 232 is the wing splitter 231 It is provided so as to penetrate the wing split body 231 at a position shifted from the center C1 of the center, and has an eccentric structure.

More specifically, the center C2 of the wing shaft 232 moves the wing split body 231 at a position eccentric from the center C1 of the wing split body 231 to the rear surface 231 b of the wing split body 231. Installed through.

In addition, each wing split body 231 has the same cross-sectional shape as the wing 230 of the plane, and has a front surface 231a and a rear surface 231b formed in a predetermined curved shape and have a streamlined cross-sectional shape as a whole. The curved surface of 231a is formed to have a larger curvature than the curved surface of the rear surface 231b, and as a result, the flow velocity is formed faster on the front surface 231a than the rear surface 231b of the wing splitter 231.

That is, according to the Bernoulli principle (P1 ㅧ V1 = P2 ㅧ V2), the air flow velocity (V2) of the front surface 231a is larger than the rear surface 231b because the distance to which air flow should flow from the front surface 231a of the wing splitter 231. ) Is faster than the air flow velocity V1 of the rear surface 231b, so that the pressure P2 of the front surface 231a is lower than the pressure P1 of the rear surface 231b.

Accordingly, the wing splitter 231 rotates about the wing shaft 232 by the pressure difference between the front surface 231a and the rear surface 231b generated due to the shape of the front surface 231a and the rear surface 231b as described above. Position is adjusted. The amount of rotation of the wing splitter 231 is different depending on the linear velocity according to the position of the wing splitter 231, and the closer to the outer end of the wing 230, the greater the linear speed, and consequently one The plurality of wing splitters 231 provided in the wing 230 is rotated at a greater angle as it is closer to the outer end of the wing 230.

As described above, the attitude is adjusted by rotating the center of the wing shaft 232 such that each wing division 231 has a posture corresponding to its linear speed, thereby providing an optimal rotation environment of the wing structure 200. .

On the other hand, each wing split body 231 is coupled to the wing shaft 232 through the bearing (B2) so that the rotation of the wing split body 231 around the wing shaft 232 can be made smoothly.

6 and 7 again, a triangular support link 250 is installed at the inner end of each wing 230 and connects the support link 250 and the outer end 230b of the wing 230. The wire 260 may be further included.

In this case, the support link 250 is installed to have a structure integral with the wing splitter 231-1 (shown in FIG. 9) located at the inner end 230a of the wing 230, and the wire 260 Is extended from the support link 250 is installed to be connected to the wing shaft 232 at the outer end 230b of the wing 230, by using the support link 250 and the wire 260 of the wing 230 By supporting the inner and outer ends connected to each other, sagging of the wing 230 which may occur when the wing 230 is moved to the second position Po2 inclined downward backward is prevented.

On the other hand, the bent axis wind turbine according to the present invention rotatably supports the rotating module 210, the wing structure 200 is capable of changing the direction according to the direction of the wind, in conjunction with the wing structure 200, the rotating shaft A support structure 300 (shown in FIG. 2) is further included to allow the plurality of wings 230 to be folded or unfolded by pushing or pulling 220.

12 is a side view showing the structure of the support structure according to the present invention, Figure 13 is a side view showing a state in which the support structure according to the present invention is inclined backward.

The support structure 300 is composed of a direction switching module 310, the tilt control module 320, the rotation support module 330, the spring 340, the push rod 350.

The redirection module 310 is composed of a fixed plate 311 of the conical structure installed in a fixed structure on the upper end of the fixed structure 100, and a rotating plate 312 while being coupled to the upper portion of the fixed plate 311 The support block 313 having a structure protruding upward is formed at the center of the upper surface of the rotating plate 312.

On the other hand, the bearing B3 is installed between the fixed plate 311 and the rotating plate 312 for smooth rotation of the rotating plate 312.

The inclination control module 320 is formed of two flat plate parts 321 and 322 are coupled to each other to maintain an angle interval of about 120 degrees, the center portion is coupled to the support block 313 in a rotatable structure.

The tilt control module 320 installed as described above is provided with a rotation support module 330 on the flat plate portion 321 located in front of the support block 313, the spring 340 on the flat plate portion 322 located in the rear Combined.

The rotation support module 330 is installed in the inclination control module 320, is coupled to the rotation module 210 is configured to support the rotation of the rotation module 210.

Of course, the bearing (B4) is installed between the rotary support module 330 and the rotary module 210 for smooth rotation of the rotary module 210.

The spring 340 is installed to be located between the direction change module 310 and the inclination control module 320 at the rear of the support block 313. When the spring 340 is rotated about the support block 313 by the inclination control module 320 by the gust, the inclination control module 320 is compressed by the inclination control module 320 to rotate to the original position Will accumulate power.

The push rod 350 is installed to connect the direction switching module 310 and the rotary shaft 220, and when the tilt control module 320 rotates around the support block 313, it pushes the rotary shaft 220. .

The push rod 350 is hinged to the lower end of the direction switching module 310, the upper end is hinged to the fixing ring 221 installed in the front end on the rotating shaft 220.

The push rod 350 installed as described above has a movement trajectory and a rotating shaft of the front end of the rotating shaft by the tilt adjusting module 320 when the tilt adjusting module 320 is rotated rearward with respect to the support block 313 by a gust. Due to the difference in the movement trajectory of the end portion of the push rod 350 which is connected to the front end of the rotating rod, the push rod 350 pushes the rotating shaft 220, and thus the rotating shaft 220 moves rearward.

As such, the connecting link 240 connecting the rotating shaft 220 and the respective wings 230 in the process of moving the rotating shaft 220 to the rear pulls the wings 230 to fold the wing structure into a shape similar to an umbrella. As a result, the wind pressure acting on the wing 230 is reduced to prevent breakage of the wing 230.

The bent axis wind turbine of the present invention configured as described above operates and describes the process of converting wind energy into mechanical energy.

In the bent axis wind turbine according to the present invention, the wing in the first position Po1 and the position adjacent to the plurality of wings 230 receives a wind pressure to generate a rotational force, thereby rotating the wing structure 200.

On the other hand, by connecting the rotary shaft 220 or the rotary module 210 provided in the wing structure 200 with the generator to transfer the mechanical energy generated by the rotation of the wing structure 200 to the generator, the configuration of the wind generator It becomes possible.

In addition, when the air compressor is driven by using the rotational force of the rotary shaft 220 or the rotary module 210, and the air compressed by the air compressor is stored in a separate tank, wind energy can be stored.

Due to the low height of the wing structure 200 and the fixed structure 100, the bent axis wind turbine according to the present invention is easy to install on land as well as offshore structures, and has the advantage of maintaining a stable structure against gusts.

On the other hand, during the rotation of the wing structure 200, each wing 230 is a first position (Po1) extending vertically upwards of the fixed structure 100, and acute angle with respect to the ground to the rear of the fixed structure 100. The second position Po2 extends while being inclined at an angle and rotates, and the rotation module 210 and the rotation shaft 220 supporting the rotation of the blade 230 form an acute angle with a horizontal plane (θ1). Will maintain a tilted position.

On the other hand, the plurality of wing dividers 231 constituting each of the wings 230, the wing shaft 232 by the pressure difference between the front surface (231a) and the rear surface (231b) generated in proportion to the linear velocity according to its position By rotating around the center to maintain the optimum posture in compliance with the wind, thereby minimizing the rotational resistance of the wing (230).

On the other hand, if the direction of the wind is changed, by rotating the rotating plate 312 of the direction switching module 310 by the wind pressure acting on the blade, the direction of the wing structure 200 is made, accordingly the direction of the wind Smooth operation is possible even in irregularly changing areas or terrain.

On the other hand, when a large pressure is applied to the wing 230 by a strong wind, such as a gust, the tilt control module 320 is rotated to the rear about the support block 313 by the pressure acting on the wing 230. At this time, the spring 340 disposed between the inclination control module 320 and the direction switching module 310 is compressed, the rotating shaft 220 is moved back by the pusher 350.

As the plurality of wings 230 are rotated and folded by the movement of the rotary shaft 220, the wing structure 200 takes a posture similar to that of an umbrella. Therefore, it is possible to prevent damage to the wing structure 200 due to the gust by reducing the wind pressure acting on each wing 230.

On the other hand, when the wind pressure is reduced and the wind pressure acting on the wing 230 is reduced, the inclination adjustment module 320 is rotated forward around the support block 313 by the elasticity accumulated in the spring 340, At this time, the rotary shaft 220 is pulled by the pusher 350 to move forward, the wings 230 are unfolded by the movement of the rotary shaft 220.

As described above, the bent axis wind turbine according to the present invention can effectively respond to the strength of the wind while the wing structure 200 is folded or unfolded according to the strength of the wind, and has the advantage of continuously converting the wind energy into mechanical energy.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

Description of the Related Art
100: fixed structure 200: wing structure
210: rotating module 220: rotating shaft
230: wings 231: wing splits
232: wing shaft 240: connection link
250: support link 260: wire
300: support structure 313: support block
310: direction change module 320: tilt control module
330: rotation support module 340: spring
350: push

Claims

In the wind turbine comprising a fixed structure 100 and the wing structure 200 is installed on the fixed structure 100 and having a plurality of wings 230 for converting the wind energy into mechanical energy,
The wing structure 200 includes a rotary module 210 that is coupled to the plurality of wings 230 and rotates together with the plurality of wings while maintaining a structure inclined at an acute angle with respect to the ground (θ1). Each of the wings 230 extends while being inclined at an angle formed at an acute angle with respect to the ground to the first position Po1 extending vertically upwardly of the fixed structure 100 and to the rear of the fixed structure 100. A four-axis wind turbine, characterized in that rotating in the second position (Po2) rotates.

The method according to claim 1, The wing structure 200,
It is made of a cylindrical structure, the plurality of wings 230 is hinged to the outer surface is rotated module 210 to rotate with the wings 230;
It is installed to be movable in a direction parallel to the central axis (S) of the rotary module 210 while penetrating the center of the rotary module 210, it is connected to each wing 230 via a connecting link 240 Rotating shaft 220; And
One end is hinged to the rotating module 210, is connected to the rotary shaft 220 via the link link 240 is rotated around the hinge point (P1) by the movement of the rotary shaft 220 is folded like an umbrella Slope-type wind turbine, characterized in that consisting of a plurality of wings 230 to be built or spread.

The method according to claim 2,
In accordance with the strength of the wind acting on the wing 230 is provided with a push rod 350 to fold or unfold a plurality of wings 230 by pushing or pulling the rotary shaft 220 in conjunction with the wing structure 200, The rotatable module 210 is rotatably supported and installed in the fixed structure 100 to be rotatable so that the direction of the wing structure 200 is changed according to the direction of the wind acting on the wing structure 200. A four-axis wind turbine further comprises a support structure (300).

The method of claim 3, wherein the support structure 300,
A redirection module 310 coupled to the upper end of the fixed structure 100 and having a support block 313 protruding upward in a central portion thereof;
A tilt control module 320 coupled to the support block 313 in a central rotatable structure;
A rotation support module 330 installed on the inclination control module 320 to rotatably support the rotation module 210;
A spring 340 installed to be positioned between the direction change module 310 and the tilt control module 320 at a rear position of the support block 313 to elastically support the tilt control module 320; And
A four-axis wind turbine, characterized in that consisting of a push rod 350 is coupled to the direction change module 310, the lower end is rotatable, the upper end is coupled to the rotating shaft 220.

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