KR101042683B1

KR101042683B1 - Wind power generation apparatus

Info

Publication number: KR101042683B1
Application number: KR1020080107525A
Authority: KR
Inventors: 윤미현
Original assignee: 윤미현
Priority date: 2008-10-31
Filing date: 2008-10-31
Publication date: 2011-06-20
Also published as: KR20100048395A

Abstract

The present invention and the vertical axis is fixed to the ground perpendicularly; A rotating shaft rotatably installed on the vertical shaft; A plurality of first supports radially formed on an outer circumferential surface of the rotation shaft to rotate while drawing a first rotation trajectory; A plurality of blades fixed to a support shaft rotatably installed on the first supports; A blade interference part positioned at an upper end of the rotating shaft and interfering with the blades so as to be rotated while being aligned in a direction extending the contact area of the blades with respect to the wind in a portion of the first rotational trajectory; It includes; a power generation unit for generating power received by the rotational force of the rotary shaft.

According to the present invention, when the blade interferes with the guide member, the drag acts by the wind, and when the blade does not interfere with the guide member, the drag by the wind is minimized, that is, the disturbing drag that hinders the movement of the blade is minimized, The rotational efficiency is improved, and eventually the power generation efficiency is improved.

Wind power, power generation, drag, blades, alignment, jamming

Description

Wind Power Generators {WIND POWER GENERATION APPARATUS}

The present invention relates to a wind turbine, and more particularly, to a wind turbine having a rotation axis perpendicular to the direction of the wind.

In general, a wind power generator is a device that rotates a turbine by wind and generates power using the rotational force of the turbine.

Such a wind power generator includes a horizontal axis wind power generator in which the rotation axis of the turbine is horizontal with respect to the wind direction, and a vertical axis wind power generator in which the rotation axis of the turbine is perpendicular to the wind direction.

The horizontal axis wind turbine is rotated only by the wind in a specific direction, so the wind direction has a great influence on the power generation has a disadvantage of low power generation efficiency.

On the other hand, the vertical axis wind turbine can rotate the turbine by the wind in various directions, the wind direction does not affect the power generation efficiency. However, when the turbine is rotated, the wind, along with the rotational drag that rotates the turbine, also acts as a disturbing drag that hinders the rotation of the turbine. The disturbance drag results in a loss of turbine's rotational energy, which in turn reduces the generating efficiency of the generator.

Therefore, in recent years, in order to increase power generation efficiency in a vertical axis wind turbine, researches for minimizing the disturbance drag of wind acting on a turbine have been actively conducted.

The present invention is to solve the problems of the prior art, an object of the present invention is to provide a wind power generator that improves the power generation efficiency by obtaining a stable rotational force without loss of rotational force from the wind in various directions.

The present invention for achieving the above object and the vertical axis is fixed perpendicular to the ground; A rotating shaft rotatably installed on the vertical shaft; A plurality of first supports radially formed on an outer circumferential surface of the rotation shaft to rotate while drawing a first rotation trajectory; A plurality of blades fixed to a support shaft rotatably installed on the first supports; A blade interference part positioned at an upper end of the rotating shaft and interfering with the blades so as to be rotated while being aligned in a direction extending the contact area of the blades with respect to the wind in a portion of the first rotational trajectory; It includes; a power generation unit for generating power received by the rotational force of the rotary shaft.

The blade interference portion is connected to the support shaft, the handle is interlocked with the blade to rotate around the support shaft drawing a second rotational trajectory; A wind direction adjustment shaft rotatably installed on the rotation shaft; The blade against the wind by being fixed to the second support formed radially on the outer circumferential surface of the wind direction adjustment shaft to guide the handle for a portion of the first rotational trajectory, by causing the handle to rotate during the set period of the second rotational trajectory A guide member for aligning the blade in a direction in which the contact area of the blade is extended; And a wind vane coupled to an upper end of the wind direction adjusting shaft, and rotated by wind to align the guide member at a predetermined position according to the wind direction.

The wind direction adjusting shaft is connected to the rotary shaft by a one-way bearing to rotate only in one direction.

On the other hand, the blade is formed in an arc shape, is coupled eccentrically to the support shaft, the handle is a fixed portion coupled to the support shaft in the axial direction and fixed, and an extended portion extending bent vertically from the fixed portion A connection member made of; And a guide member slidably coupled to the extension portion by an elastic force, guided to the guide member at a tip thereof, and a guide protrusion protruding the second rotational trajectory when the support shaft is rotated.

The guide member has an entry portion through which the guide protrusion of the handle enters a width larger than a diameter of the second rotational trajectory, and a portion through which the guide protrusion enters and exits has a width smaller than the width of the entry portion. do.

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

An embodiment of the wind turbine generator according to the present invention is shown in FIG.

Referring to FIG. 1, in the present embodiment, a rotation shaft 200 is rotatably provided on a vertical shaft 100 installed perpendicular to the ground, and a plurality of first supports 210 formed radially on an outer circumferential surface of the rotation shaft 200. A plurality of blades 300 are rotatably installed.

In addition, a blade interference part 400 is provided at the top of the rotation shaft 200 to interfere with the blades 300 such that the blades 300 are aligned in a direction in which the blades 300 extend the contact area with respect to the wind. In addition, the power generation unit 700 is generated to receive the rotational force of the rotating shaft is provided.

The vertical axis 100 is installed perpendicular to the base 500 fixed to the ground.

The first support 210 is a plurality of radially provided on the outer circumferential surface of the rotary shaft 200 in a pair set to be spaced apart from each other in the vertical direction on the rotary shaft 200. Thus, when the rotating shaft 200 is rotated, the first support 210 is rotated along the first rotation trajectory of a predetermined radius.

The blade 300 is formed in an arc shape and is eccentrically coupled to the support shaft 220 rotatably installed at the tip of the first support 210.

On the other hand, the blade interfering portion 400 is connected to the support shaft 220, the handle 410 rotates while drawing a second rotational trajectory with the blade 300, and the wind direction adjustment shaft is rotatably installed on the rotation shaft 200 420 and fixed to the wind direction adjustment shaft 420 to guide the handle 410 during a portion of the first rotational trajectory drawn by the first support 210 to expand the contact area of the blade 300 against the wind. It consists of a guide member 430 for aligning the interference with the blade 300 in the direction, and a wind direction 440 for aligning the guide member 430 in a set position according to the wind direction.

Referring to FIG. 2, the handle 410 is axially coupled to the support shaft 220 and vertically bent and extended from the fixing portion 411a and the fixing portion 411a exposed to the upper portion of the first support 210. The connecting member 411 consisting of the extended portion 411b, and slidably coupled to the extending portion 411b of the connecting member 411 and guided to the guide member 430 at the tip, and during the rotation of the support shaft 220 The guide protrusion 412a, which draws the second rotational trajectory, includes a guide member 412 that protrudes. That is, the second rotational trajectory is a trajectory whose radius is the distance from the center of the fixed portion 411a to the center of the guide protrusion 412a. The radius of the second rotational trajectory is varied since the guide member 412 slides from the extension portion 411b.

The guide member 412 is slidably coupled to the extension portion 411b by an elastic force. That is, the inlet groove 411c through which the guide member 412 is to be drawn is formed in the extension portion 411b in the axial direction. In addition, a tension spring 413 is positioned in the inlet groove 411c, and the tension spring 413 couples the inlet groove 411c and the guide member 412 by an elastic force.

In addition, a stopper 414 for shielding the inlet groove 411c is provided, and the central portion of the stopper 414 is perforated so that the guide member 412 is fitted. On the outer surface of the extension part 411b, a slit 415 having a predetermined length is formed in the direction in which the guide member 412 slides, and the guide member 412 introduced into the inlet groove 411c through the slit 415 is formed. A sliding pin 416 is coupled to the outer surface.

That is, when the guide member 412 is slid in the inlet groove (411c), while the sliding pin 416 is moved along the slit 415, the guide member 412 is self-rotating in the inlet groove (411c) This is avoided. Thus, the guide protrusion 412a of the guide member 412 is always in an upward position and interferes with the guide member 430.

On the other hand, the guide member 430 is coupled by the second support 431 radially provided on the outer surface of the wind direction adjustment shaft 420, is located on the path of the first rotational trajectory of the first support (210) .

That is, the guide member 430 is formed in an arc shape by using a radius of the distance D from the center of the rotation shaft 200 to the center of the support shaft 220 and the radius d of the second rotation trajectory. . At this time, the radius of the second rotational trajectory is the minimum radius, that is, when the guide member 412 is introduced into the inlet groove 411c of the extension portion 411b and can no longer be inserted therein, the guide protrusion (from the center of the fixed portion 411a) 412a) to a center of gravity (see FIG. 5).

The guide member 430 forms the rotation passage 432 along the first rotational trajectory of the first support 210 so that the guide protrusion 412a of the handle 410 is inserted therethrough.

In particular, the guide protrusion 412a of the handle 410 is self-rotating by drawing the second rotational trajectory by the rotation of the support shaft 220, so that the entry portion into which the guide protrusion 412a enters from the guide member 430 is at least entered. It is formed as a passage having a width larger than the diameter of the second rotational trajectory. Therefore, the self-rotating guide protrusion 412a smoothly enters the rotation passage 432 of the guide member 430.

On the other hand, the discharge portion from which the guide protrusion 412a is discharged from the guide member 430 may form a passage smaller than the width of the entry portion.

Referring to FIG. 1, the wind vane 440 is a general wind vane having a resistance difference caused by wind on both sides, and a side having a smaller resistance is rotated in a direction in which the wind blows, and a detailed description thereof will be omitted. .

Therefore, as the wind direction adjusting shaft 420 is rotated according to the wind direction by the wind direction 440, the guide member 430 is always moved to a predetermined position with respect to the wind direction.

On the other hand, the wind direction adjustment shaft 420 is inserted into the center shaft 230 protruding from the upper portion of the rotary shaft 200 is rotatably installed, it is connected by the one-way bearing 600 to rotate in one direction with respect to the rotary shaft 200 do.

Referring to FIG. 3, the one-way bearing 600 is provided on the ratchet gear 610 formed on the lower surface of the wind direction adjustment shaft 420 and the upper surface of the rotation shaft 200, and is rotated and protruded by an elastic force to form the ratchet gear 610. ) Consists of a ratchet 620 interfering.

Referring to FIG. 4, the generator 700 includes a drive gear 710 installed on an outer surface of the rotation shaft 200, a driven gear 720 meshed with the drive gear 710, and a rotational force of the driven gear 720. It consists of a generator 730 is generated and received.

Hereinafter, the operation and effects of the present embodiment configured as described above will be described.

Referring to FIG. 5, the guide member 430 is positioned at the right front side with respect to the rotating shaft 200 with respect to the wind blowing from the front side. The position of the guide member 430 is always in the same position with respect to the blowing wind because the wind adjustment shaft 420 is rotated in accordance with the wind direction by the wind direction 440.

The blade 300 in a state where the guide protrusion 412a is not interfered with the guide member 430 is rotated by wind. However, since the blade 300 is eccentrically coupled to the support shaft 220, the blade 300 has a difference in wind resistance on both sides with respect to the support shaft 220, and is aligned at the least received position. do. That is, the blade 300 is aligned at a position parallel to the direction of the wind without continuously rotating.

On the other hand, the blade 300, the guide protrusion 412a interferes with the guide member 430, because the guide protrusion 412a is prevented from rotating along the second rotation trajectory by the guide member 430, the blade 300 ) Will not be aligned to the position of least wind resistance.

Thus, the drag 300 is generated by drag of the wind, and rotates the rotating shaft 200 while moving along the first rotation trajectory. In addition, since the blade 300 is formed in an arc shape, the movement resistance is minimized when the blade 300 is moved along the first rotation trajectory.

In addition, when the guide protrusion 412a interferes with the guide member 430, since the guide member 412 on which the guide protrusion 412a is formed is slid by an elastic force from the extending portion 411b of the connection member 411, The guide protrusion 412a is smoothly moved when the guide member 430 interferes with the interference.

As such, in the blade 300, the drag is generated against the wind in the section in which the guide protrusion 412a interferes with the guide member 430, thereby rotating the rotation shaft 200, and the guide protrusion 412a guides the guide member 430. In a section that does not interfere, that is, a section in which a wind drag interferes with the movement of the blade 300, a section of the rotation shaft 200 is not reduced while minimizing the resistance of the wind.

Therefore, since the blade 300 is moved along the first rotational track while minimizing the interference drag of the wind, the rotational efficiency of the rotational shaft 200 is improved, and the power generation efficiency is improved.

Meanwhile, referring to FIG. 5, the wind direction adjusting shaft 420 provided with the wind vane 440 is connected to the rotary shaft 200 by the one-way bearing 600. The wind direction adjustment shaft 420 may not rotate relative to the rotation shaft 200 in the rotation direction (clockwise) of the rotation shaft 200, and the rotation shaft 200 in the reverse rotation direction (counterclockwise) of the rotation shaft 200. Relative to).

This is to prevent the guide shaft 412a and the discharge portion of the guide member 430 from colliding with each other when the rotating shaft 200 is reversely rotated by the blade 300 due to the sudden change of the wind direction.

That is, when the rotating shaft 200 is reversely rotated, the rotating shaft 200 and the wind direction adjusting shaft 420 are rotated together so that the discharge portions of the guide protrusion 412a and the guide member 430 do not collide with each other.

The embodiments of the present invention described above should not be construed as limiting the technical spirit of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

1 is a view showing an embodiment of a wind turbine generator according to the present invention,

Figure 2 is a view showing a coupling structure of the blade and the handle in the wind power generator of Figure 1,

Figure 3 is a view showing a coupling structure of the wind direction adjusting shaft and the rotating shaft in the wind power generator of Figure 1,

Figure 4 is a view showing the structure of the power generation unit in the wind power generator of Figure 1,

5 is a view showing a process of moving the blades by the wind in the wind power generator of Figure 1;

100: vertical axis 200: rotation axis

210: first support 300: blade

400: blade interferer 410: handle

420: Wind direction adjusting shaft 430: Guide member

431: second support 440: wind direction

600: one-way bearing 700: power generation unit

Claims

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A vertical axis fixed perpendicularly to the ground;

A rotating shaft rotatably installed on the vertical shaft;

A plurality of first supports radially formed on an outer circumferential surface of the rotation shaft to rotate while drawing a first rotation trajectory;

A plurality of blades fixed to a support shaft rotatably installed on the first supports;

A blade interference part positioned at an upper end of the rotating shaft and interfering with the blades so as to be rotated while being aligned in a direction extending the contact area of the blades with respect to the wind in a portion of the first rotational trajectory;

And a power generation unit configured to receive the rotational force of the rotary shaft and generate power.

The blade interferer

A handle connected to the support shaft and linked to the blade to rotate while drawing a second rotational track about the support shaft;

A wind direction adjustment shaft rotatably installed on the rotation shaft;

The blade against the wind by being fixed to the second support formed radially on the outer circumferential surface of the wind direction adjustment shaft to guide the handle for a portion of the first rotational trajectory, by causing the handle to rotate during the set period of the second rotational trajectory A guide member for aligning the blade in a direction in which the contact area of the blade is extended;

And a wind vane coupled to an upper end of the wind direction adjusting shaft and rotated by wind to align the guide member at a predetermined position according to the wind direction.

3. The method of claim 2,

The wind direction adjustment shaft is a wind turbine generator, characterized in that connected by the one-way bearing to rotate only in one direction to the rotation axis.

The method of claim 2 or 3,

The blade is formed in an arc shape, is eccentrically coupled to the support shaft,

The handle is

A connecting member comprising a fixed part coupled to the support shaft in an axial direction and fixed, and an extended part bent vertically from the fixed part;

A guide member slidably coupled to the extension portion by an elastic force, guided to the guide member at a tip end thereof, and a guide member protruding from the guide shaft to draw the second rotational track when the support shaft is rotated.

The guide member is

The entry portion into which the guide protrusion of the handle enters is formed to have a width larger than the diameter of the second rotational trajectory, and the portion into which the guide protrusion enters and is discharged is formed to have a width smaller than the width of the entry portion. Wind power generator.