KR101198580B1 - Blade for wind power apparatus and system - Google Patents

Blade for wind power apparatus and system Download PDF

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Publication number
KR101198580B1
KR101198580B1 KR20100041770A KR20100041770A KR101198580B1 KR 101198580 B1 KR101198580 B1 KR 101198580B1 KR 20100041770 A KR20100041770 A KR 20100041770A KR 20100041770 A KR20100041770 A KR 20100041770A KR 101198580 B1 KR101198580 B1 KR 101198580B1
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KR
South Korea
Prior art keywords
wings
pair
wind
wing
fastening
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KR20100041770A
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Korean (ko)
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KR20110122334A (en
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박승오
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한국과학기술원
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Priority to KR20100041770A priority Critical patent/KR101198580B1/en
Publication of KR20110122334A publication Critical patent/KR20110122334A/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

The present invention relates to a wind turbine blade and a wind turbine using such a wind turbine blade, more specifically, by reducing the unnecessary resistance by repeating the development and folding of the blade of the wind turbine according to the direction of the wind, The present invention relates to a wind turbine blade for improving power generation efficiency and a wind turbine generator using the blade of such a wind turbine.

Description

Blade and wind power generator of wind power generator {BLADE FOR WIND POWER APPARATUS AND SYSTEM}

The present invention relates to a wind turbine blade and a wind turbine using such a wind turbine blade, more specifically, by reducing the unnecessary resistance by repeating the development and folding of the blade of the wind turbine according to the direction of the wind, The present invention relates to a wind turbine blade for improving power generation efficiency and a wind turbine generator using the blade of such a wind turbine.

Current power generation methods include thermal power generation using large fossil fuels, nuclear power generation using uranium, and hydroelectric power generation requiring large-scale desalination facilities. In the case of thermal power generation and nuclear power generation, it causes environmental destruction and warming, and in particular, in the case of thermal power generation, social problems such as radiation waste generation have become a big issue.

Recently, there is a need for more environmentally friendly alternative energy generation other than such a power generation method, such as solar power generation or wind power generation.

Wind turbines are commonly referred to as windmills, which are devices used to produce power using mechanical forces through a rotating shaft. In other words, wind power is to obtain electricity by operating the generator through the power transmission device to rotate the wind power rotated by the wind, the technology to maximize the power of the wind without energy loss is the key to maximize the efficiency. Therefore, the wing structure of the wind power generation is an important factor.

The wing applied to the conventional wind turbine has a propeller or a windmill, or has a single-pellet structure in which a plurality of wings having a concave shape is formed vertically around the vertical axis. 1, the power transmission unit 110 is mounted on the tip of the vertically vertical strut 130, and one side of the power transmission unit 110 is equipped with a plurality of rotary blades. When the 120 is rotated by the wind is to convert the rotational power of the rotary blade 120 to electrical energy to be used. However, the wing structure of the wind power generator, such as the propeller has a disadvantage in that the amount of wind loss due to the rotation of the wing while rotating the wind as the slope passes. In addition, the impeller-type wing is efficient because the wing is concave to receive a large amount of wind when it is hit by the wind, but it still receives a lot of resistance when turning the wind to return to the wind direction, thereby reducing the rotational force. there is a problem.

In addition, in the conventional wind power generation as shown in FIG. 1, when the wind is maintained at a constant speed or higher and the air density is high, the propeller-type blade rotates to convert the force of the wind into power, so that the power generation occurs when the breeze blows. There is a problem that is difficult, there is a problem that lack efficiency in urban areas and mountainous regions where the wind is not constant.

The present invention has been made to solve the above problems, by providing the wings of the wind turbine is folded (folded), or extended (deployed) according to the direction of the wind, when the wings move in the same direction as the wind direction Maximizes the area in contact with the wind and minimizes the area in contact with the wind when moving in the opposite direction, thus improving power generation efficiency.

In order to solve the above problems, the present invention provides the following solutions.

As an embodiment of the blade of the wind turbine according to the present invention, a pair of wings 11 and arcuately bent in a circular shape, and the pair of wings 11 to rotatably fasten so that deployment and folding A fastening portion, a fold force generating portion 12 protruding from an end of the pair of wings 11, and folding the pair of wings by wind power, and the pair of wings 11 ) Is provided in the form of directly connecting, and includes an angle adjusting portion 20 for adjusting the angle of the pair of wings when the deployment or folding.

As another embodiment of the blade of the wind turbine according to the present invention, provided in any one of the pair of wings 11 and the pair of wings 11, which are arcuately curved, the pair of wings Another pair of parts 11 is coupled to the fastening rod 14 for rotatably fastening the pair of wings 11 so as to be deployed and folded and the pair of fastening rods 14 A fastening member 13 for preventing detachment of the wing portion, and a protruding force generating portion protruding from the ends of the pair of wing portions 11 and folding the pair of wing portions 11 by wind power. (12) and provided in the form of directly connecting the pair of wings 11, and includes an angle adjuster 20 for adjusting the angle when the pair of wings 11 is deployed or folded do.

As another embodiment of the blade of the wind power generator according to the present invention, a pair of wings 11 arcuately curved and a fastening portion for rotatably fastening the pair of wings to be deployed and folded It is provided to protrude at the end of the pair of wings, the folding force generating portion 12 to fold the pair of wings by wind power, and is provided to one of the pair of wings, when folded A stop 30 for stopping the part and a stop groove 35 provided at a position corresponding to the stop in the other of the pair of wings.

In addition, in one embodiment of the wind power generator according to the present invention, in the wind power generator using a plurality of wind turbine blades for operating the generator through the power transmission device to rotate the rotational force by the wind, the wind power generator of the The wing 10 includes a pair of wing portions 11 arcuately curved, a fastening portion for rotatably fastening the pair of wing portions 11 so as to be deployed and folded, and the pair of It is provided to protrude to the end of the wing portion 11, and provided in the form of directly connecting the folding force generating portion 12 to fold the pair of wing portions by wind power, and the pair of wing portions 11 directly. And, it includes an angle adjuster 20 for adjusting the angle when the pair of wings 11 is deployed or folded.

In another embodiment of the wind power generator according to the present invention, in the wind power generator using a plurality of wind turbine blades for operating the generator through the power transmission device to rotate the rotation force by the wind, the blade of the wind generator ( 10 is a pair of wing portions 11 arcuately curved, a fastening portion for rotatably fastening the pair of wing portions 11 so as to be deployed and folded, and the pair of wing portions. It is provided to protrude at the end of the (11), provided in the fold-force generating portion 12 for folding the pair of wings 11 by the wind power, and one of the pair of wings (11) , A stop 30 for stopping the wing 11 when folded and a stop groove 35 provided at a position corresponding to the stop 30 at the other of the pair of wings 11. Include.

The present invention has been made to solve the above problems, by providing the wings of the wind turbine is folded (folded), or extended (deployed) according to the direction of the wind, when the wings move in the same direction as the wind direction Maximizes the area in contact with the wind and minimizes the area in contact with the wind when moving in the opposite direction, thereby improving power generation efficiency.

1 is a wing of a conventional wind turbine.
2 is a partial perspective view of the wind power generator according to the present invention.
3 is a conceptual diagram of a wind turbine generator according to the present invention.
Figure 4 is an embodiment of the blade of the wind turbine according to the present invention.
5 is an embodiment of the blade of the wind turbine according to the present invention.
Figure 6 is another embodiment of the wing of the wind turbine according to the present invention.
7 is a plan view of a stop provided in the blade of the wind turbine according to the present invention.
8 is a working principle of another embodiment of the wing of the wind turbine according to the present invention.

Hereinafter, 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. Even if the terms are the same, it is to be noted that when the portions to be displayed differ, the reference signs do not coincide.

The terms to be described below are terms set in consideration of functions in the present invention, and may be changed according to a user's intention or custom such as an experimenter and a measurer, and the definitions should be made based on the contents throughout the present specification.

2 and 3 are conceptual diagrams of essential contents of the present invention. The wings 10 used in the present invention are provided in plural at constant angles on the rotating shaft 2 for wind power generation. The fixed shaft 3 connected from the rotating shaft 2 fixes the blade 10 together with the supporting member 4.

In the present invention, the wings used in the wind power generator are provided to be folded (folded) or unrolled (deployed) according to the direction of the wind, so that when the wings move in the same direction as the wind direction, the area that is in contact with the wind is maximized (deployment). Its main purpose is to maximize drag and to move in the opposite direction to reduce the area of contact with the wind (folding) to form a streamlined form, minimizing drag and improving power generation efficiency. Therefore, a pair of wing parts are combined to use a variable wing that can be deployed or interlocked with each other.

In particular, the main feature of the wing portion 11 used in the present invention is to be formed in a circular arc shape. In addition, to the end of the wing portion 11 to provide a folding force generating portion 12 to form a resistance to the wind in order to generate a force for folding. This is different from the conventional wing.

As shown in Figure 3, the wings are rotated, depending on the direction of the wind, it can be seen that the folding and folding in accordance with the relationship between the inside of the arc shape of the wing and the direction of rotation in the direction of the wind.

4 to 5 is an embodiment of the blade of the wind power generator according to the present invention. As an embodiment of the present invention, the blade 10 of the wind turbine is rotatable to be able to expand and fold the pair of wings 11 and the pair of wings 11, the arc shape is bent in an arc shape. A fastening portion 12 for protruding at an end of the pair of wings 11, a fold force generating portion 12 for folding the pair of wings by wind power, and a pair of wings 11 ) Is provided in the form of directly connecting, it is preferable to include an angle adjuster 20 for adjusting the angle of the pair of wings when expanding or folding.

The wing portion 11 provides a circular arc shape having a large angle in a shape complementary to each other. There is an advantage that can maximize the area and the force of the wind by providing in an arc shape than the conventional flat wing.

The pair of wings is coupled to each other by a fastening portion, it is preferable to be rotatably fastened to each other to enable deployment and folding. The fastening portion preferably includes a fastening rod 14 serving as a rotation center of the pair of wings and a fastening member 13 which prevents the pair of wings 11 from being separated from the fastening rod 14. .

At this time, the fastening member 13 is preferably a hinge.

Further, each end of the wing portion is provided with a folding force generating portion 12 protruding at an angle in the circumferential direction. It is preferable that the folding force generating portion is perpendicular to the circumferential direction. The folding force generating unit 12 has a surface shape, and when the pair of wings 11 faces in the opposite direction of the wind blowing, receives the wind to fold the pair of wings 11. .

That is, when the wing rotates in the windy direction, the inner side of the arc of the wing portion faces the windy direction, so that it expands and rotates. However, when rotated 180 degrees, the rotation direction and the wind blowing direction is in conflict with each other. At this time, the wind acts on the folding force generating unit, when the angle is greater than the preset force to the wing portion is folded to minimize the area in contact with the wind.

Afterwards, if it rotates 180 degrees again, the wind blowing direction and rotation direction coincide, and thus the process of re-deploying is repeated.

In general, it is preferable to include an angle adjuster 20 for adjusting the angle when the pair of wings is developed or folded. The angle adjuster may be in the form of a cylinder by oil pressure or the like, or may be an elastic member by elastic force. According to a predetermined force there is an advantage to control the size of the wind power that is deployed and folds.

One of the features of the present invention is that such an angle adjusting portion 20 is provided inside the arc shape of the wing portion 11, and both ends of the angle adjusting portion 20 is directly inside the wing portion (11) Is connected.

If the angle adjuster 20 is provided to the rotating rod 14 and other members, the shape thereof becomes complicated, resulting in a problem of increasing manufacturing cost and failure rate.

However, in the present invention, except for the angle adjuster 20, the fastening member 13 may restrict the deployment angle of the pair of wings 11.

The fastening rods 14 may be formed integrally with the pair of wings. That is, provided on any one of the pair of wings 11, the other one of the pair of wings 11 is coupled to rotatably fasten the pair of wings 11 to be deployed and folded To provide a fastening rod 14 and a fastening member 13 to prevent the detachment of the pair of wings with respect to the fastening rod (14).

The shape or the like of the fastening bar 14 may be used to perform the function, and does not unduly limit the scope of the invention.

6 to 8 show another embodiment of the blade of the wind turbine according to the present invention.

In another embodiment, a pair of wing portions 11 arcuately curved, a fastening portion for rotatably fastening the pair of wing portions so as to be developed and folded, protrude from the ends of the pair of wing portions. A pair of fold-force generating units 12 for folding the pair of wings by wind power, one of the pair of wings, and a stop 30 for stopping the wings during folding; Preferably, the other one of the wings includes a stop groove 35 provided at a position corresponding to the stop.

That is, the overall principle is the same as described above, but there is a difference in that the stop 30 is used instead of the angle adjuster 20. The specific shape of the stop 30 is shown in detail in FIG. 7.

The stop part includes a fixing part 31 fixed to the wing part 11 and an elastic member 33. The elastic member 33 is supported by the guide portion 32, it is preferable that the stop piece 34 is provided at the end.

The fixing portion 31 of the stop portion is provided inside one of the pair of wings. However, it is preferable to be located as far away from the fastening rod 14 as possible. The other of the pair of wings is provided with a stop groove 35 at a position corresponding to the stop piece 34.

When the pair of wings is folded, the stop pieces are inserted into the stop grooves, thereby preventing damage to the wing portions 11 that may occur due to strong collision by the buffering action of the elastic force. In addition, when the wing portion 11 is folded to form a gap without being completely folded when the position of the wing is changed to provide an effect that the wind is inserted into the deployment.

In addition, through the elastic member 33 located inside the stop portion to provide a function for providing a recovery force to facilitate redeployment.

The present invention provides a wind turbine, preferably in a wind turbine using a plurality of wind turbine blades for operating the generator through a power transmission device to rotate the rotation force by the wind, the blade of the wind turbine 10, a pair of wing portions 11 arcuately curved, a fastening portion for rotatably fastening the pair of wing portions 11 so as to be deployed and folded, and a pair of wing portions ( 11) is provided to protrude to the end of, provided in the form of directly connecting the fold force generating portion 12 to fold the pair of wings by the wind, a pair of wings 11, a pair of It is preferable to include an angle adjuster 20 for adjusting the angle when the wing 11 is deployed or folded.

In addition, the wind power generator of another embodiment, in the wind power generator using a plurality of wind turbine blades for operating the generator through the power transmission device to rotate the rotation force by the wind, the blade 10 of the wind generator , A pair of wing portions 11 arcuately curved, a fastening portion for rotatably fastening the pair of wing portions 11 so as to be deployed and folded, and ends of the pair of wing portions 11. Is provided on one of the pair of wing members 11 and the fold force generating portion 12 to fold the pair of wings 11 by the wind power, and the wing portion 11 at the time of folding It is preferable to include a stop portion 30 for stopping) and a stop groove 35 provided at a position corresponding to the stop portion 30 on the other of the pair of wings 11.

The present invention is not limited to the scope of the embodiments by the above embodiments, all having the technical spirit of the present invention can be seen to fall within the scope of the present invention, the present invention is the scope of the claims by the claims Note that is determined.

10: wing, 11: wing portion, 12: folding force generating portion, 13: fastening member, 14: fastening rod, 20: angle adjustment portion, 30: stop portion, 35: stop groove

Claims (15)

In the wing of the wind turbine, which is provided to the wind turbine, and which operates the generator through the power transmission device when the rotation force by the wind,
The wing of the wind power generator,
A pair of wings curved in an arc shape,
A fastening part for rotatably fastening the pair of wing parts so as to be deployed and folded;
Protrude from the ends of the pair of wings to have a surface perpendicular to the outer surface of the wing, and the pair of wings receive wind when the pair of wings facing the opposite direction of the wind blowing A folding force generating section for folding the section ;
Both sides are provided fixed to the curved inner surface of the pair of wings, respectively , including an angle adjusting portion for adjusting the angle when the pair of wings is developed or folded,
Wings of wind turbines. In the wing of the wind turbine, which is provided to the wind turbine, and which operates the generator through the power transmission device when the rotation force by the wind,
The wing of the wind power generator,
A pair of wings curved in an arc shape having a 90 degree angle ,
A fastening rod provided on any one of the pair of wings, and the other one of the pair of wings is coupled to rotatably fasten the pair of wings to be developed and folded;
A fastening member for preventing separation of the pair of wings with respect to the fastening rod;
Protrude from the ends of the pair of wings to have a surface perpendicular to the outer surface of the wing, and the pair of wings receive wind when the pair of wings facing the opposite direction of the wind blowing A folding force generating section for folding the section ;
Both sides are provided to be fixed to the curved inner surface of the pair of wings, respectively , and includes an angle adjuster for adjusting the angle when the pair of wings is developed or folded,
Wings of wind turbines. The method according to claim 1 or 2,
The pair of wings is developed when the inner direction of the arc is in the direction of the wind blowing, and folded when the opposite direction of the wind is blowing,
Wings of wind turbines. The method according to claim 1,
The fastening part includes a fastening rod which is a rotation center of the pair of wing parts, and a fastening member that prevents the pair of wing parts from being separated from the fastening bar.
Wings of wind turbines. The method according to claim 2 or 4,
The fastening member is a hinge,
Wing of wind turbine The method according to claim 2 or 4,
The fastening member restrains the deployment angle of the pair of wings,
Wings of wind turbines. delete In the wing of the wind turbine, which is provided to the wind turbine, and which operates the generator through the power transmission device when the rotation force by the wind,
The wing of the wind power generator,
A pair of wings curved in an arc shape,
A fastening part for rotatably fastening the pair of wing parts so as to be deployed and folded;
Protrude from the ends of the pair of wings to have a surface perpendicular to the outer surface of the wing, and the pair of wings receive wind when the pair of wings facing the opposite direction of the wind blowing A folding force generating section for folding the section ;
A stopper provided on one of the pair of wings and stopping the wing when folded;
A stop groove provided at a position corresponding to the stop portion at another one of the pair of wings;
Wings of wind turbines. The method according to claim 8,
The pair of wings is developed when the inner direction of the arc is in the direction of the wind blowing, and folded when the opposite direction of the wind is blowing,
Wings of wind turbines. The method according to claim 9,
The fastening part includes a fastening rod which is a rotation center of the pair of wing parts, and a fastening member that prevents the pair of wing parts from being separated from the fastening bar.
Wings of wind turbines. The method of claim 10,
The fastening member is a hinge,
Wings of wind turbines. The method according to claim 9,
The stop portion includes a fixed portion and an elastic member fixed to the wing,
Wings of wind turbines. delete In the wind power generator using a plurality of wind turbine blades for operating the generator through the power transmission device when rotating by the wind power,
The wing of the wind power generator,
A pair of wings curved in an arc shape,
A fastening part for rotatably fastening the pair of wing parts so as to be deployed and folded;
Protrude from the ends of the pair of wings to have a surface perpendicular to the outer surface of the wing, and the pair of wings receive wind when the pair of wings facing the opposite direction of the wind blowing A folding force generating section for folding the section ;
Both sides are fixed to the curved inner surface of the pair of wings are provided, respectively , and includes an angle adjuster for adjusting the angle when the pair of wings is developed or folded
Wind turbines. In the wind power generator using a plurality of wind turbine blades for operating the generator through the power transmission device when rotating by the wind power,
The wing of the wind power generator,
A pair of wings curved in an arc shape,
A fastening part for rotatably fastening the pair of wing parts so as to be deployed and folded;
Protrude from the ends of the pair of wings to have a surface perpendicular to the outer surface of the wing, and the pair of wings receive wind when the pair of wings facing the opposite direction of the wind blowing A folding force generating section for folding the section ;
A stopper provided on one of the pair of wings and stopping the wing when folded;
A stop groove provided at a position corresponding to the stop portion at another one of the pair of wings;
Wind turbines.
KR20100041770A 2010-05-04 2010-05-04 Blade for wind power apparatus and system KR101198580B1 (en)

Priority Applications (1)

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KR20100041770A KR101198580B1 (en) 2010-05-04 2010-05-04 Blade for wind power apparatus and system

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Application Number Priority Date Filing Date Title
KR20100041770A KR101198580B1 (en) 2010-05-04 2010-05-04 Blade for wind power apparatus and system

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KR20110122334A KR20110122334A (en) 2011-11-10
KR101198580B1 true KR101198580B1 (en) 2012-11-06

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2571755A (en) * 2018-03-08 2019-09-11 Shih Yu Huang Rotatory aerogenerator
KR102109701B1 (en) 2018-12-11 2020-05-12 지상현 Wind force generator of shaking wing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005535824A (en) 2002-08-13 2005-11-24 ディー． ノーブル，ジェームズ Turbine apparatus and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005535824A (en) 2002-08-13 2005-11-24 ディー． ノーブル，ジェームズ Turbine apparatus and method

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