KR101218053B1 - a rotor for wind power generator - Google Patents

a rotor for wind power generator Download PDF

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Publication number
KR101218053B1
KR101218053B1 KR1020110009968A KR20110009968A KR101218053B1 KR 101218053 B1 KR101218053 B1 KR 101218053B1 KR 1020110009968 A KR1020110009968 A KR 1020110009968A KR 20110009968 A KR20110009968 A KR 20110009968A KR 101218053 B1 KR101218053 B1 KR 101218053B1
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KR
South Korea
Prior art keywords
blade
jib
main blade
rotor
wind
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KR1020110009968A
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Korean (ko)
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KR20120088958A (en
Inventor
황의영
황지선
황인기
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에너진(주)
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Priority to KR1020110009968A priority Critical patent/KR101218053B1/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)
  • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)

Abstract

The present invention relates to a rotor for a wind power generator to provide a rotational force by hitting the wind in the wind power generator generated by the wind. The rotor for a wind power generator according to an embodiment of the present invention is a main blade coupled to the drive shaft for driving the generator, a plurality of radially arranged around the body and the main blade is formed long length vertically, the main blade and the body A first support connecting each other, the jib blades disposed to be spaced apart from the main blades on the outer side of the main blade and formed to have a size smaller than the size of the main blades, and having upper and lower lengths formed longer, and the main blades and the main blades; And a second support connecting the jib blades to each other.

Description

Rotor for wind power generator

The present invention relates to a rotor for a wind power generator to provide a rotational force by hitting the wind in the wind power generator generated by the wind.

In general, a wind power generator is a device that converts rotational motion into electrical energy, and generates electricity by lifting force and drag generated by wind hitting the rotor, and generates electricity by driving a generator that generates electricity using this rotational force. to be.

Such a wind turbine is classified into a vertical shaft wind turbine in which the rotating shaft is vertically positioned and a horizontal shaft wind turbine in which the rotating shaft is horizontally positioned according to the position of the rotary shaft of the rotor.

The horizontal axis wind turbine is limited to the installation site because it can only rotate the wind from the front of the rotor, while the vertical axis wind turbine can rotate the rotor when the wind blows regardless of the direction of the wind. It is not restricted by place.

For the same reason as above, the installation of the vertical axis wind power generator has been increasing more recently than the horizontal axis wind power generator.

On the other hand, since the efficiency of the wind power generator varies depending on the rotational force of the rotor, the design of the rotor is the most important factor in the vertical wind turbine.

The rotor of the conventional vertical axis wind power generator is configured in a shape in which a cross section is formed in a streamline shape and a blade having a long length in the vertical direction is disposed radially about a body located at the center.

The rotor of the vertical shaft wind turbine of this configuration drives the generator by rotating the body with the lift generated by the wind hitting the blade.

However, the rotor of the conventional vertical axis wind power generator has to form a large blade width in order to allow the rotor to rotate even in a small wind, but as the blade width increases, the blade's resistance to wind increases, which makes it difficult to improve the rotational force of the blade. There was a problem.

The present invention is to solve the problems as described above, the problem to be solved by the present invention is to easily rotate the rotor even in the small wind, while increasing the lift force of the rotor and at the same time reduce the resistance of the rotor effectively It is to provide a rotor for a wind turbine that can be improved.

The rotor for a wind power generator according to an embodiment of the present invention for achieving the above object is a main blade coupled to the drive shaft for driving the generator, a plurality of radially disposed around the body and formed long length vertically And a first support for connecting the main blade and the body to each other, the jib blades disposed to be spaced apart from the main blade on the outer side of the main blade, and formed to have a size smaller than the size of the main blade, and having a long upper and lower length. And a second support connecting the main blade and the jib blade to each other.

The tip of the jib blade may be located in front of the direction of rotation than the tip of the main blade.

An angle between the main blade and the jib blade may range from 0 ° to 35 °.

According to the present invention is provided with a jib blade to increase the lift while being spaced apart between the jib blade and the main blade, there is an effect that can effectively improve the rotational force of the rotor by reducing the resistance of the wind.

In addition, since the contact area of the wind is widened by the jib blade, the rotor has an effect of increasing the rotational force and easily rotating the rotor even with a small wind.

1 is a perspective view showing a rotor for a wind power generator according to an embodiment of the present invention.
2 is a plan view of the wind turbine rotor according to the embodiment of the present invention as viewed from the top.
3 is a cross-sectional view taken along line AA of FIG. 2 and illustrates a longitudinal cross-sectional view of the first support.
4 is a cross-sectional view taken along line BB of FIG. 2, illustrating a longitudinal cross section of the second support.
5 is a view showing a wind turbine with a rotor for a wind generator according to an embodiment of the present invention.
6 is a view showing a rotor for a wind turbine according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1 and FIG. 2, the wind turbine rotor 100 according to an embodiment of the present invention may include a body 110.

The body 110 may be formed in a rod shape that is formed long in the vertical direction, the coupling groove (not shown) to which the drive shaft of the generator is coupled can be formed in the center of the lower end of the body (110).

The rotor 100 for a wind power generator according to an embodiment of the present invention may include a main blade 130. The main blade 130 may be formed to have a long length in the vertical direction as a part of the wind is generated by the lifting of the wind, a plurality of the center 110 may be disposed radially.

In addition, the cross-sectional shape of the main blade 130 may be formed in a streamline shape in which the front end is formed in a curved line and the point toward the rear end is reduced so that the resistance of the wind is reduced when the wind turbine rotor 100 rotates.

In this embodiment, four main blades 130 are radially installed around the body 110.

Wind turbine rotor 100 according to an embodiment of the present invention may include a first support (120). The support may connect the body 110 and the main blade 130 to each other.

Meanwhile, the first support 120 may be formed in a disc shape such that one first support 120 connects the plurality of main blades 130 and the body 110, and is formed in a rod shape to form a plurality of mains. Blade 130 may be configured to connect to the body 110, respectively.

In this case, the first support 120 and the main blade 130, the main blade 130 and the body 110 may be coupled to each other by a fastening member such as a bolt, the first support 120 and The body 110 or the first support 120 and the main blade 130 may be integrally formed.

And, of course, a plurality of first support 120 may be installed up and down of the body (110).

Here, when the first support member 120 is formed in a rod shape and configured to connect each of the plurality of main blades 130 to the body 110, the shape of the longitudinal cross section of the first support member 120 is formed in a curved shape. It may be formed in a streamlined shape to be sharper toward the rear end.

By forming the first support 120 in a streamlined form, it is possible to minimize the resistance of the wind during the rotation of the rotor 100 for a wind turbine.

The rotor 100 for a wind generator according to an embodiment of the present invention may include a jib blade 150. The jib blade 150 is connected to the main blade 130 to improve the rotational force of the wind turbine rotor 100 in the form of increasing the lift by increasing the contact area of the wind.

On the other hand, the jib blade 150 may be formed in a size smaller than the size of the main blade 130, the length of the jib blade 150 may be formed long vertically.

The length of the jib blade 150 in one embodiment is formed to the same length as the length of the main blade 130.

And the front end of the jib blade 150 may be located in front of the rotor 100 for the wind turbine is rotated than the front end of the main blade 130. The front end of the jib blade 150 is configured to be located ahead of the front end of the main blade 130, so that the contact area of the wind is increased by the length of the jib blade 150 and the main blade 130 to further increase lift. Can be.

Here, the jib blade 150 and the main blade 130 may be formed in parallel with each other or the jib blade 150 is inclined inward with respect to the main blade 130. That is, when viewed in a plane, the angle c between the centerline of the jib blade 150 and the centerline of the main blade 130 may have a range of 0 ° to 35 °.

Here, when the angle c between the centerline of the jib blade 150 and the centerline of the main blade 130 is greater than 35 °, the rear end of the jib blade 150 is opened to the outside so that the wind turbine 100 Since the resistance is increased during the rotation of the rotational force of the rotor 100 for a wind turbine is reduced.

Wind turbine blade according to an embodiment of the present invention may include a second support (140). The second support 140 may connect the jib blade 150 and the main blade 130 to each other.

Meanwhile, the second support 140 may be formed in an annular shape such that the plurality of jib blades 150 and the plurality of main blades 130 are connected to one second support 140, as in one embodiment. The second support 140 may be formed in a rod shape so as to connect each jib blade 150 and the main blade 130 to each other.

In this case, the second support 140 and the jib blade 150, the second support 140 and the jib blade 150 may be coupled to each other by a fastening member such as bolts, jib blade 150 The second support 140 or the main blade 130 and the second support 140 may be integrally formed.

In addition, a plurality of second support members 140 may be installed in the up and down directions of the main blade 130.

On the other hand, when the second support 140 is formed in the shape of a rod, the shape of the longitudinal cross-section may be formed in a streamline shape in which the front end is formed in a curved shape and pointed toward the rear end.

By forming the second support 140 in a streamlined form, it is possible to minimize the resistance of the wind during rotation of the rotor 100 for a wind turbine.

As shown in Figure 6, the wind turbine rotor 100 according to another embodiment of the present invention, the main blade 130 and the jib blade 150 is not installed vertically, as in one embodiment, It is shown that the upper and lower portions of the main blade 130 and the jib blade 150 may be applied to the helical rotor 100 positioned in a twisted state.

The operation and effect between the above-described respective constitutions will be described.

In the wind turbine rotor 100 according to one embodiment and another embodiment, a plurality of main blades 130 are installed around the body 110, and the body 110 and the plurality of main blades 130 are firstly formed. The support 120 is connected to each other. In addition, a jib blade 150 is installed outside each of the plurality of main blades 130, and the jib blade 150 and the main blade 130 are configured to be connected to each other by the second support 140.

At this time, the tip of the jib blade 150 is positioned to protrude further forward in which the jib blade 150 rotates than the tip of the main blade 130.

The wind turbine rotor 100 configured as described above has an area where the wind is contacted by the jib blade 150 to increase the rotational force, thereby improving the rotational force of the wind turbine rotor 100, and the jib blade 150. ) Is spaced apart from the main blade 130 by the second support 140, the wind passes through it can minimize the resistance of the wind.

That is, when the jib blade 150 is positioned in close contact with the main blade 130, the contact area of the wind is widened, and thus the resistance is increased as the lift force is increased. However, as in the present embodiment, since the jib blade 150 is spaced apart from the main blade 130, the contact area of the wind is widened, but the wind may escape between the jib blade 150 and the main blade 130. have.

Therefore, by installing the jib blade 150, it is possible to increase the lift and at the same time reduce the resistance of the wind can effectively improve the rotational force of the wind turbine rotor 100, and as the contact area of the wind increases The wind turbine rotor 100 may be easily rotated by the wind.

As shown in FIG. 5, the wind turbine 200 in which the wind turbine rotor 100 is installed is a generator 230 that is driven by a rotating drive shaft to produce electricity, and the generator 230 is installed therein. And the drive shaft protrudes on the top and the bottom further includes a support 210 is fixed to the bottom.

Then, the drive shaft is coupled to the coupling groove formed in the body 110 of the wind turbine rotor 100, the wind hit the main blade 130 and the jib blade 150, the wind turbine rotor 100 Rotate and drive the generator 230 in the form of rotating the connected drive shaft of the body 110 is configured to produce electricity.

Therefore, the wind turbine 200 in which the wind turbine rotor 100 is installed according to an embodiment of the present invention can rotate the wind turbine rotor 100 even with a small amount of wind by the jib blade 150 and at the same time wind power generation. By improving the rotational force of the rotor 100 for the air can finally increase the amount of electricity produced.

Although one embodiment of the present invention has been described above, the scope of the present invention is not limited thereto, and is easily changed and equivalent to those skilled in the art from one embodiment of the present invention. It includes all changes and modifications to the extent deemed acceptable.

100: wind generator rotor 110: body
120: first support 130: main blade
140: second support 150: jib blade
200: wind power generator 210: support
230: generator
c: angle between the centerline of the jib blade and the centerline of the main blade

Claims (3)

Body coupled to the drive shaft for driving the generator,
Four radially arranged around the body, the upper and lower lengths are formed long and the main blade,
A first support connecting the main blade and the body to each other;
A jib blade disposed to be spaced apart from the main blade on an outer side of the main blade and formed to have a size smaller than that of the main blade, and having an upper and a lower length formed longer;
A second support connecting the main blade and the jib blade to each other;
The front end of the jib blade is located in the front of the rotation direction than the front end of the main blade,
The angle formed by the main blade and the jib blade has a range of 0 ° to 35 °,
The shape of the longitudinal cross-section of the first support is formed in a streamline shape in which the tip is formed in a curved line and is sharply formed toward the rear end,
The first support is provided with a plurality of upper and lower body,
The shape of the longitudinal cross section of the second support is formed in a streamline shape in which the tip is curved and becomes sharper toward the rear end,
The main blade is formed in a streamline shape in which the shape of the longitudinal section is formed in a curved tip and pointed toward the rear end.
The main blade and the jib blade is a rotor for a wind turbine, characterized in that it has a helical shape of the twisted form up and down. delete delete
KR1020110009968A 2011-02-01 2011-02-01 a rotor for wind power generator KR101218053B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110009968A KR101218053B1 (en) 2011-02-01 2011-02-01 a rotor for wind power generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110009968A KR101218053B1 (en) 2011-02-01 2011-02-01 a rotor for wind power generator

Publications (2)

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KR20120088958A KR20120088958A (en) 2012-08-09
KR101218053B1 true KR101218053B1 (en) 2013-01-03

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017120050A (en) * 2015-12-28 2017-07-06 株式会社Ｎｏａｉ Vertical wind power generation system, vertical water power generation system and control method therefor
CN108979952A (en) * 2018-09-18 2018-12-11 国电联合动力技术有限公司 A kind of pneumatic equipment bladess
CN115095475A (en) * 2022-06-24 2022-09-23 兰州理工大学 Vertical axis wind turbine structure capable of inhibiting boundary layer separation

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005002962A (en) * 2003-06-13 2005-01-06 Shinko Electric Co Ltd Vertical shaft type wind power generation device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005002962A (en) * 2003-06-13 2005-01-06 Shinko Electric Co Ltd Vertical shaft type wind power generation device

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