KR20110133979A - Blade structure including pocket type blade and darrieus type rotating device equipped therewith - Google Patents

Blade structure including pocket type blade and darrieus type rotating device equipped therewith Download PDF

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Publication number
KR20110133979A
KR20110133979A KR1020100053701A KR20100053701A KR20110133979A KR 20110133979 A KR20110133979 A KR 20110133979A KR 1020100053701 A KR1020100053701 A KR 1020100053701A KR 20100053701 A KR20100053701 A KR 20100053701A KR 20110133979 A KR20110133979 A KR 20110133979A
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South Korea
Prior art keywords
wing
wind
pocket
frame
seating
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KR1020100053701A
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Korean (ko)
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KR101214243B1 (en
Inventor
우정택
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주식회사 전원
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Priority to KR1020100053701A priority Critical patent/KR101214243B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
    • F03D3/067—Cyclic movements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • 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)
  • Wind Motors (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)

Abstract

PURPOSE: A blade structure for wind power generation having a pocket-shaped blade and a darrieus-type rotary body therewith are provided to improve wind power generation efficiency by minimizing the rotation resistance of a rotary shaft. CONSTITUTION: A blade structure for wind power generation having a pocket-shaped blade comprises a support frame and pocket-shaped blades(130). The pocket-shaped blades are fixed to the support frame. Each pocket-shaped blade comprises a mounting frame and a flexible blade membrane. One end of the mounting frame has a concave mounting space, and the other end has a linear corner. The flexible blade membrane is welded in the corners of the mounting frame except one end of the mounting frame.

Description

Blade structure including pocket type blade and Darrieus type rotating device equipped therewith}

The present invention relates to a wing structure for a wind power generation having a pocket-shaped wing body and a Darius-type rotating body in which it is installed. Specifically, the flexible wing of the pocket shape as a wing structure for changing the wind power to the rotational force is installed in the wind turbine It relates to a wing structure provided with a membrane and a Darius-type rotating body in which it is installed.

Wind power is the most competitive energy source among renewable energy. Recently, research on wind power generation is being actively conducted.

Wind turbines can be broadly divided into horizontal axis wind turbines and vertical axis wind turbines.

Among them, the vertical axis wind power generator is a structure that can rotate regardless of the wind direction, and the savonius type that uses the drag of air as the main rotational force and Darius type that uses the lift force acting on the blade as the main rotational force are representative rotation methods. can do.

The Savonius wind turbine has a number of blades (blades) subjected to wind drag on the rotating shaft in a manner of obtaining the rotational force of the rotating shaft by using the drag according to the wind to generate a rotation moment on the rotating shaft. However, the previously developed Savonius-type rotors serve as a resistance to rotation in the section where the wing is against the wind. That is, when the front surface of the wing generating the drag against the wind receives the wind, the rotation moment is generated on the rotating shaft, while the wing subjected to the drag rotates about 180 degrees around the rotating shaft, and the wind rotates on the rear side of the blade. It acts as an interfering resistor, reducing the efficiency of the rotor.

On the other hand, the Darius type has the advantage that can increase the number of revolutions even if the rotational speed of the blade (blade) is greater than the wind speed, but in the stationary state does not generate a rotational component of the lifting force acting on the blade is necessary to start the device There is this.

The present invention has been made in order to solve the above problems, to provide a wing structure of the vertical axis rotor to improve the wind power generation efficiency by minimizing the rotational resistance of the rotary shaft while the structure of the blade is installed on the rotor. The purpose.

In addition, the present invention has a rotary wing that can use the drag of the wind in the empty space of the Darius-type rotating body to increase the efficiency of the Darius-type rotating body with the role of the starting device for another object.

The present invention for achieving the above object comprises a support frame and a pocket-shaped wing body fixed to the support frame, the pocket-shaped wing body is a cross-sectional shape forming a concave seating space at one end, toward the other end A depth of the recessed seating space becomes shallower, and a seating frame forming only a straight edge at the other end, and a flexible wing film joined to the frame at all corners except the one end to form a pocket shape so as to have an opening at the end. It includes, and provides the wing structure for the wind turbine with the opening facing the direction perpendicular to the longitudinal direction of the support frame.

In the above configuration, the recessed seating space is preferably recessed into a "-" shape.

In addition, the flexible wing film is preferably formed to be equal to or larger than the total width of the inner surface of the recessed seating space can be in close contact with the recessed seating space as a whole.

In another aspect, the present invention includes a support frame and a pocket-shaped wing body fixed to the support frame, wherein the pocket-shaped wing body is a seating frame formed with a concave cross-section, the flexibility is attached so that one end is open to the seating frame And a wing membrane, wherein the wing membrane is unfolded from the seating frame when the open end of the flexible wing film faces the wind direction, and the drag force against the wind increases, and the concave cross section of the seating frame when facing the wind direction is opposite. Provides a wing structure for a wind turbine that is folded in close contact with the portion to reduce drag against the wind.

In the above configuration, the seating frame includes an upper plate, a lower plate installed in the same shape and posture at a predetermined distance from the upper plate, and an intermediate plate for vertically connecting and connecting the upper plate and the lower plate, The upper plate, the lower plate, and the intermediate plate form the concave cross-section having a “c” shape, but the concave cross section is configured so that its depth becomes shallower gradually from the one end to the other end so that the depth is lost at the other end.

On the other hand, the flexible wing membrane of the wing structure for the wind turbine as described above is also preferably composed of a material selected from fabric, rubber or synthetic resin, the support frame may be formed with an attachment flange at one end or both ends.

In another aspect, the present invention, in the Darius-type wind turbine that rotates the vertical axis of rotation by the lifting force generated in the blade, provided with a pocket-shaped wing body fixed to the rotation shaft by a support, the pocket-shaped wing body Is a cross-sectional shape that forms a concave seating space at one end, and the depth of the concave seating space gradually becomes shallower toward the other end so as to form only a straight edge at the other end, and the seating frame at all corners except the one end. A flexible wing membrane joined to form a pocket shape so as to have an opening at the one end, and having the open portion facing a direction perpendicular to the rotation shaft so that the rotation force by the wind can be added to the rotation shaft. to provide.

The concave seating space is preferably recessed into a "c" shape.

In addition, it is also preferable that the flexible wing film is formed to have an area equal to or larger than the entire area of the inner surface of the concave seating space so as to be able to be in close contact with the concave seating space as a whole.

In another aspect, the present invention, in the Darius-type wind turbine that rotates the vertical axis of rotation by the lifting force generated in the blade, a pocket-shaped wing body is further provided to add a rotational force by the wind to the rotation axis, The pocket-shaped wing body includes a seating frame having a concave cross section and a flexible wing film attached at one end to the seating frame, and the flexible wing film is seated when the open end of the flexible wing film faces the wind direction. Unfolding from the frame increases the drag against the wind, and when folded in the opposite direction of the wind direction to provide a Darius type wind turbine that is folded close to the concave cross-section portion of the seating frame to reduce the drag against the wind.

The seating frame includes an upper plate and a lower plate installed in the same shape and posture at a predetermined distance from the upper plate, and an intermediate plate connected by vertically connecting the upper plate and the lower plate, wherein the upper plate, the lower plate and the intermediate plate are “c”. The concave cross section is formed to have a '-shape', and the concave cross section is preferably configured such that its depth becomes shallower from the one end to the other end so that the depth is lost at the other end.

The flexible wing membrane of the Darius wind turbine is preferably one selected from the group consisting of woven fabric, rubber and synthetic resin.

On the other hand, the present invention is provided with a horizontal rotating shaft and a pocket-shaped wing body fixed to the horizontal rotating shaft by a support to rotate the rotating shaft by wind power, the pocket-shaped wing body to form a recessed space at one end Cross-sectional shape, the depth of the concave seating space is gradually shallower toward the other end and the seating frame to form only a straight edge at the other end, and joined to the seating frame at all corners except the one end to have an opening at the one end Also provided is a wind turbine including a flexible vane forming a pocket shape, the opening being directed in a direction perpendicular to the rotation axis such that rotational force by wind power can be added to the rotation axis.

The present invention having the configuration as described above has the following effects.

First, the wing structure of the present invention is to minimize the rotational resistance by folding the wings in the region generating resistance to the rotation of the rotor by the wind, and quickly enters the wing to the maximum range when entering the region generating the rotational force by the wind It can spread and absorb wind energy to the maximum. Accordingly, power generation efficiency is increased.

Second, the wing structure of the present invention does not burden the rotating shaft due to the small weight of the wing membrane even when the size of the wing membrane is increased so as to spread the wing membrane to a position far from the rotation shaft in order to increase the rotational torque of the rotating shaft.

Third, the wing structure of the present invention does not have a large self-weight of the wing film, and the frame can be made thin, so that the rotating body can be made light in weight. Accordingly, compared to the wing member using a conventional plate-shaped wing, the size of the wing film is relatively easy to easily form a wing subjected to drag by the wind, and the energy loss due to the expansion and contraction of the wing film is insignificant.

Fourth, the wing structure of the present invention increases the size of the wing film to expand the wing member to a position far away from the rotation axis to increase the torque acting on the rotation axis, in the region where the wing member generates a rotational resistance, the wing film is folded into close contact with the inside of the frame Therefore, the increase in rotational resistance is not large. Therefore, as described above, the increase in the rotational resistance according to the increase in size without increasing the self-weight of the wing film is small, so as to increase the size of the wing film as necessary, it is easy to increase the power generation efficiency. The structure of the rotor is also very simple.

Fifth, in the case where the wing structure of the present invention is installed in the Darius wind turbine, the rotational force can be generated by the drag force, thereby securing the maneuvering force. In addition, in addition to the lifting force generated for the same wind power generated additional rotational force by the drag can also increase the power generation efficiency.

Sixth, the wing structure for the wind turbine body of the present invention can be easily installed in the empty space of the Darius-type wind turbine body by being installed on the support frame and the frame is formed on the side end of the support.

1 is a perspective view of a rotor installed wing structure according to an embodiment of the present invention
2 is a block diagram showing a pocket-shaped wing body according to an embodiment of the present invention
Figure 3 is an explanatory view showing the operation of the rotor body is installed wing structure according to an embodiment of the present invention
Figure 4 is a side view showing the operating state of the rotor body is installed wing structure according to an embodiment of the present invention
5 is an explanatory diagram showing an operation process of the pocket-shaped wing body according to an embodiment of the present invention.
6 is a perspective view showing a state in which the wing structure according to an embodiment of the present invention is installed in the Darius wind turbine
7 is a configuration showing a state in which the wing structure according to an embodiment of the present invention is installed in the Darius wind turbine
8 is an explanatory diagram illustrating the operation of the configuration of the wing structure according to an embodiment of the present invention installed in the Darius wind turbine
9 is a perspective view showing a state in which the modified wing structure is installed in the Darius wind turbine, according to an embodiment of the present invention
10 is a perspective view of another modified wing structure according to an embodiment of the present invention
Figure 11 is a configuration installed so that the wing structure according to an embodiment of the present invention can rotate while rotating around the horizontal axis installed horizontally

An embodiment of the wing structure according to the present invention will be described in more detail with reference to the drawings.

1 is a perspective view of a structure in which a wing structure according to an embodiment of the present invention is installed on a vertical axis of rotation, and FIG. 2 illustrates an enlarged pocket-shaped wing body according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, the wing structure 100 according to the embodiment of the present invention includes a wing body 130 and a support body 120 connecting the rotation shaft 110 and the wing body 130 to each other. do.

The wing body 130 is preferably a plurality of elements are installed at equal intervals around the rotary shaft 110 as the element to orbit around the rotary shaft 110 in response to the wind.

The wing body 130 includes a seating frame 140 and a flexible wing film 150 fastened to the seating frame 140 to form a pocket.

The seating frame 140 has a cross-sectional shape that forms a recessed seating space 145 at one end, and the depth of the recessed seating space 145 is gradually shallower toward the other end so that the depth is lost at the other end and only a straight edge is formed. It is configured to.

2 shows an enlarged pocket-shaped wing body 130.

As shown in FIG. 2A, a triangular upper plate 141, a lower plate 143 installed in the same shape and posture at a predetermined distance from the upper plate 141, and the upper plate 141 are provided. The lower plate 143 is composed of an intermediate plate 142 vertically connected to each other. Therefore, the cross-sectional shape at one end (X1 side) is formed into a concave space into a "c" shape, and at the other end (X2 side) the concave seating space 145 disappears and the edge of the plate, that is, the intermediate plate 142 The edge of will remain. Since the wing body 130 of the present embodiment is formed symmetrically with respect to the intermediate plate 142, the structure as described above appears symmetrically.

The flexible wing membrane 150 is joined to the seating frame 140 at all corners except the one end (X1 side) to open at one side (X1 side) where the recessed seating space 145 of the seating frame is formed. A pocket shape having 160 is formed.

Bonding of the flexible wing membrane 150 and the seating frame 140 may be performed using a rivet or a fastening bolt, or a structure for quilting a fastening string.

The opening portion 160 is disposed to face a direction perpendicular to the rotation shaft 110 so as to apply a rotational force to the rotation shaft 110 and receives wind power.

The flexible wing film 150 is composed of a fabric, a thin rubber film or a thin film film of synthetic resin, and the like, and selects a very flexible material so that the appearance can be made smoothly from the seating frame 140.

In addition, the flexible wing film 150 is formed to be the same as the entire width of the inner surface of the concave seating space 145, or slightly wider than it is configured to be in close contact with the mounting portion as a whole. This is to ensure that the flexible wing film 150 is in close contact with the inner surface of the seating frame 140 when the wind back. If the width of the flexible wing film 150 does not reach the width of the inner surface of the concave seating space 145 of the seating frame 140, the flexible wing film 150 is completely in close contact with the seating frame 140 even when wind pressure is received from the rear surface. Can't be As a result, the area subjected to drag against the wind pressure becomes wide, causing rotational resistance.

FIG. 2B illustrates a case where the flexible wing layer 150 is inclined to the wind direction and is in close contact with the seating frame 140.

Meanwhile, the operation of the wing structure 100 according to the embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4.

Figure 3 is a plan view of a state in which the vertical axis rotating body is installed wing structure 100 according to an embodiment of the present invention.

The wing body 130 in the "A" position is in a state in which the pocket-shaped flexible wing membrane 150 is completely unfolded by wind, and is absorbing wind energy to the maximum.

In the process of moving from the "A" position to the "B" position, the flexible wing membrane 150 is rotated by receiving the wind continues to rotate the rotating shaft (110). As it moves from the "A" position to the "B" position, the flexible wing membrane 150 on the inner side, that is, the rotating shaft 110 side is gradually in close contact with the seating frame 140 by increasing the wind power received from the side. As such, when the flexible wing membrane 150 pivots about the rotational axis 110, the angle of the opening portion 160 changes with respect to the wind direction, and the drag received by the flexible wing membrane 150 gradually decreases, and the wing body The rotation force generated by 130 is also gradually reduced.

Meanwhile, in the process of moving from the "B" position to the "C" position, the wing body 130 gradually changes its posture in a direction parallel to the wind direction. Accordingly, as the wind moves toward the “C” position, the wind flowing along the side of the flexible wing membrane 150 pushes the flexible wing membrane 150 toward the intermediate plate 142 of the seating frame 140, and thus, the seating frame 140. Will be in close contact with the inner surface. Such close contact is maintained for as long as the wing body 130 moves to the "D" position where wind pressure acts directly toward the side of the flexible wing film 150.

Accordingly, in the region where the wing body 130 receives wind power from the rear surface, the rotational resistance is generated on the rotating shaft 110, that is, the region moving from "B" to "D" through the flexible wing film 150. By doing this as much as possible, the drag on the wind is minimized.

In particular, in the position "C" where rotation resistance can occur the most, the seating frame 140 is horizontal to the wind direction, and the flexible wing membrane 150 is closely attached to the seating frame 140, so that it is seated against the wind. The area is subjected to drag at about the same area as the thickness of the frame 140. Such a state will be clearly understood through the state of “C” with reference to FIG. 4, which shows the “A” and “C” states in FIG. 3 in a side view.

Meanwhile, in the process of moving from the "D" position to the "A" position of FIG. 3, the front surface of the wing body 130, that is, the surface where the opening portion 160 is to be generated gradually turns toward the wind direction. Accordingly, since the flexible wing membrane 150 is unfolded in an instant and the area subjected to drag increases suddenly, a large rotation torque may be generated on the rotation shaft 110.

As shown in FIG. 5, the flexible wing membrane 150 has a slight bend at its end as in the “E” portion even in close contact with the seating frame 140, and accordingly, the seating frames 141 to 143. And minute spaces are generated between the flexible wing membrane 150. Wind pressure acts on the space, and thus, the wing body 130 suddenly expands and completely expands the flexible wing membrane 150 in a state like a dotted line. will be.

Next, a configuration in which the wing structure 100 'is installed in the Darius wind turbine according to another embodiment of the present invention will be described with reference to FIGS. 6 to 8.

6 and 7, the wing structure 100 ′ of the present invention is fixed to the rotating shaft 210 inside the blade 220 of the Darius wind turbine.

The pocket-shaped wing body 130 of the wing structure 100 'is fixed to the rotation shaft 210 by the attachment flange 122 of the support frame 120' and is installed at a position spaced apart from the rotation shaft 210 by a predetermined distance. It is. The opening portion 160 of the pocket-shaped wing body 130 receives a wind force to generate a rotation moment on the rotation shaft 210 by facing the direction perpendicular to the rotation shaft 210. In addition, the wing structure (100 ') is installed in the inner space of the blade 220 to effectively utilize the space of the rotating body.

6 and 7 show two wing structures 100 'installed at intervals of 180 degrees around the rotational axis. However, four wing structures 100' are installed at intervals of 90 degrees. It can be configured to resist drag.

Referring to Figure 8 describes the operation of the Darius-type wind turbine is installed wing structure (100 ').

Since the Darius-type wind turbine is initially required to be maneuverable, the wing structure 100 'acts as a maneuvering device against the wind. In other words, the blade body 130 of the wing structure (100 ') is subjected to a drag force by the wind power to generate a rotational force on the rotating shaft 210 even by the weak wind. After the Darius-type wind turbine is started, as is known, the blade 220 is rotated while the combined wind speed and the combined wind force by the wind acts as the lift force is generated in the blade 220. Since the lifting force includes a rotation direction component, the blade 220 may pivot around the rotation shaft 210.

In addition, the wing body 130 of the wing structure (100 '), as described above with respect to Figure 3, while receiving the wind to fold the wings, and generates a rotational force on the rotating shaft 220. Accordingly, the rotational force due to the lifting force of the blade 220 and the rotational force due to the drag of the wing body 130 are generated at the same time to rotate the rotating shaft 210 to improve the rotational efficiency.

9 illustrates a modified structure of the wing structure installed in the Darius wind turbine.

In order to more stably fix the wing structure 100 ″, attachment flanges 122a and 122b are provided at both ends of the support frame 120 ″. One end of the attachment flange 122a is fixed to the shaft, and the other end of the attachment flange 122b is attached to the inner surface of the blade 220, the support structure can be more robust.

FIG. 9 illustrates a structure in which two pocket-shaped wings 130 are installed in each of the support frames 120 ″, but the number may be added or subtracted as necessary. Moreover, it is also possible to provide the multilayer pocket-shaped wing body 130 along the height direction of the rotating shaft 210, or to comprise the wing structure 100 "in multiple layers.

FIG. 10 illustrates a modified structure of a wing structure installed between the rotary shaft 210 and the blade 220 of the Darius-type rotating body.

The deformed wing structure has attachment flanges 122a 'and 122b' formed at both ends of the support frame 120, respectively, and both flanges use fastening means such as bolts to the rotating shaft 210 and the blade 220, respectively. Are combined. In addition, a plurality of pocket-shaped wing bodies 130 are provided as upper and lower layers of the support frame 120 between the attachment flanges 122a 'and 122b' at both ends.

The deformed wing structure is fixed by the attachment flanges (122a, 122b) at both ends is a rigid structure, the structure of the support frame 120 can be reduced in weight.

On the other hand, the length of the support frame 120 is adjusted by the user according to the distance between the rotary shaft 210 and the blade 220 may be configured to be installed after adjusting the length as necessary in the field, in the height direction of the rotary shaft By sequentially stacking at a predetermined interval, a plurality of wing structures may be installed.

11 illustrates a structure in which the pocket-shaped wing body 130 according to the embodiment of the present invention is installed on the horizontal rotating shaft 310 by a support, that is, the support frame 320 so as to pivot around the horizontal rotating shaft 310. The horizontal rotating shaft 310 is supported to be rotatable by the support structures 350a and 350b, and the horizontal rotating shaft 310 is connected to the generator 340 via the speed increaser 330.

When the wing structure is installed around the horizontal rotating shaft 310 as described above, a plurality of wing body 130 is easy to be installed along the longitudinal direction of the horizontal rotating shaft 310, bearing the horizontal rotating shaft 310 from both sides It is possible to support by this, so that the load on the bearing can be distributed.

Four pocket-shaped wing body 130 is preferably installed at intervals of 90 degrees around the horizontal axis of rotation 310, the action of rotating around the horizontal axis of rotation 310 is not different from the above-described embodiment.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the particular embodiments set forth herein. It goes without saying that other modified embodiments are possible.

100, 100 ', 100 ", 100; Wing structure 110; Axis of rotation
120,120 ', 120 ", 120; Support frames 122a, 122b; Mounting Flange
130; Pocket-shaped wing body 140; Seating frame
141; Top 142; Midboard
143; Lower plate 145; Seating space
150; Flexible wing membrane 160; Opening
210; Rotation axis 220; blade
310; Horizontal axis of rotation 320; Support frame
330; Gearbox 340; generator
350a, 35b; Support structure

Claims (14)

Support frame 120,
Including a pocket-shaped wing body 130 is fixed to the support frame,
The pocket-shaped wing body 130
A seating frame 140 having a concave seating space 145 formed at one end thereof, and a depth of the recessed seating space 145 gradually becoming shallower toward the other end thereof to form only a straight edge at the other end thereof;
It includes a flexible wing film 150 bonded to the seating frame 140 at all corners except the one end to form a pocket shape to have an opening 160 at the one end,
Wind structure for the wind turbine body, characterized in that the opening 160 is directed in a direction perpendicular to the longitudinal direction of the support frame 120. The method of claim 1,
The concave seating space 145 is a wing structure for a wind turbine, characterized in that concave in the shape of "C". The method according to claim 1 or 2,
The flexible wing membrane 150 may be formed to have an area equal to or larger than the entire area of the inner surface of the concave seating space 145, and thus may be in close contact with the concave seating space 145 as a whole. Dragon wing structure Support frame 120,
Including a pocket-shaped wing body 130 is fixed to the support frame 120,
The pocket-shaped wing body 130
A seating frame 140 having a concave cross section,
It includes a flexible wing film 150 is attached to one end to the seating frame 140,
The flexible wing membrane 150
When the open end of the flexible wing film 150 faces the wind direction, the drag frame is unfolded from the seating frame 140 and the drag force against the wind increases, and the recessed frame of the seating frame 140 faces the wind direction. Wing structure for the wind turbine, characterized in that the drag against the wind is reduced by being folded in close contact with the end portion The method of claim 4, wherein
The seating frame 140 is
An upper plate 141, a lower plate 143 installed in the same shape and posture at a predetermined distance from the upper plate, and an intermediate plate 142 for vertically connecting the upper plate and the lower plate to each other,
The upper plate and the lower plate and the intermediate plate to form the concave cross-section of the "c" shape,
The concave cross section is a wing structure for a wind turbine, characterized in that the depth is gradually shallower from the one end to the other end is lost at the other end The method according to any one of claims 1, 2, 4 and 5,
The material of the flexible wing membrane 150 is a wing structure for a wind turbine, characterized in that the selected one of the fabric, rubber or synthetic resin The method of claim 6,
The support frame 120 has a wing structure for a wind turbine, characterized in that the flange is attached to one end or both ends In the Darius wind turbine which rotates the vertical axis of rotation by the lifting force generated in the blade,
Is provided with a pocket-shaped wing body 130 is fixed to the rotation shaft by a support,
The pocket-shaped wing body 130
A seating frame 140 having a concave seating space 145 formed at one end thereof, and a depth of the recessed seating space 145 gradually becoming shallower toward the other end thereof to form only a straight edge at the other end thereof;
It includes a flexible wing film 150 bonded to the seating frame 140 at all corners except the one end to form a pocket shape to have an opening at the one end,
Darius-type wind power rotating body characterized in that the opening is directed in a direction perpendicular to the rotation axis so that the rotation force by the wind can be added to the rotation axis The method of claim 8,
The concave seating space 145 is Darius type wind turbine, characterized in that the concave into the "c" shape The method according to claim 8 or 9,
The flexible wing membrane 150 is formed to have a width equal to or greater than the entire width of the inner surface of the concave seating space 145, and thus can be in close contact with the concave seating space 145 as a whole. Rotating body In the Darius wind turbine which rotates the vertical axis of rotation by the lifting force generated in the blade,
Pocket-shaped wing body 130 is provided to add a rotational force by the wind to the rotating shaft,
The pocket-shaped wing body 130
A seating frame 140 having a concave cross section,
It includes a flexible wing film 150 is attached to one end to the seating frame 140,
The flexible wing membrane 150
When the open end of the flexible wing film 150 faces the wind direction, the drag frame is unfolded from the seating frame 140 and the drag force against the wind increases, and the recessed frame of the seating frame 140 faces the wind direction. Darius type wind turbine, characterized in that the drag against the wind is reduced by being folded in close contact with the end portion The method of claim 11,
The seating frame 140 is
An upper plate 141, a lower plate 143 installed in the same shape and posture at a predetermined distance from the upper plate, and an intermediate plate 142 for vertically connecting the upper plate and the lower plate to each other,
The upper plate and the lower plate and the intermediate plate to form the concave cross-section of the "c" shape,
The concave cross section of the Darius type wind turbine, characterized in that the depth is gradually shallower from the one end to the other end is lost at the other end The method according to any one of claims 8, 9, 11 and 12,
The material of the flexible wing membrane 150 is Darius type wind turbine, characterized in that the selected one of the fabric, rubber or synthetic resin Horizontal axis of rotation 310,
It is fixed by the support 320 to the horizontal rotating shaft 310 is provided with a pocket-shaped wing body 130 for rotating the rotating shaft 310 by wind power,
The pocket-shaped wing body 130
A seating frame 140 having a concave seating space 145 formed at one end thereof, and a depth of the recessed seating space 145 gradually becoming shallower toward the other end thereof to form only a straight edge at the other end thereof;
It includes a flexible wing film 150 bonded to the seating frame 140 at all corners except the one end to form a pocket shape to have an opening at the one end,
The wind turbine is characterized in that the opening is directed in a direction perpendicular to the rotation axis so that the rotation force by the wind can be added to the rotation axis
KR1020100053701A 2010-06-08 2010-06-08 Blade structure for wind power blade and, Rotating device and Darrieus type rotating device equipped therewith KR101214243B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10408190B2 (en) 2016-10-07 2019-09-10 Robert B. Deioma Wind turbine with open back blade

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11117850A (en) * 1997-10-20 1999-04-27 Takemaro Sakurai Wind mill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10408190B2 (en) 2016-10-07 2019-09-10 Robert B. Deioma Wind turbine with open back blade

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