WO2011078450A1

WO2011078450A1 - Wind power generator

Info

Publication number: WO2011078450A1
Application number: PCT/KR2010/003999
Authority: WO
Inventors: 황지선
Original assignee: Hwang Ji Seon
Priority date: 2009-12-24
Filing date: 2010-06-21
Publication date: 2011-06-30

Abstract

The present invention relates to a wind power generator for converting rotation force generated by wind into electric energy. A wind power generator according to an embodiment of the present invention comprises: a generator for converting rotation force to electric energy; a rotation shaft for rotating the driving shaft of the generator; a plurality of blades disposed separately at a uniform interval on a concentric circle positioned outside the rotation shaft; a supporting die coupled by the blades and a hinge to be able to rotate the blades with respect to a vertical axis; and a goniometer mounted at a portion where the blades and the supporting die are coupled and indicating a rotation angle of the blades. Therefore, it is easy to control the angle of the blades and stably support the blades.

Description

Wind power generator

The present invention relates to a wind power generating device for generating a rotational force with wind, and converting the rotational force into electrical energy.

In general, the wind power generator is a device for generating electricity by generating a rotational force by the lift and drag generated by the wind hit the blades, and driving the generator to generate electricity using this rotational force.

Wind turbines are divided into horizontal shaft wind turbines and vertical shaft wind turbines according to the position of the largely driven shaft.

The horizontal axis wind power generator is a device in which a propeller having three wings is rotated about a horizontal axis to drive a generator. A large amount of wind is required to rotate the propeller, so that the windy coast or high sea level is high. It is used for large-scale power generation because it is installed and must be manufactured large to operate with low wind.

On the other hand, the vertical axis wind turbine is suitable for small power generation because the blade can be rotated with a smaller amount of wind than the horizontal axis wind generator, and since the device can be miniaturized, much research has recently been conducted to increase the generation efficiency of the vertical axis wind turbine. Development is taking place.

Conventional vertical wind turbines are connected to a windmill coupled to a plurality of blades installed vertically and a generator. However, the conventional vertically installed blades of the windmill are fixed so as not to adjust the angle of the blade is not high power generation efficiency because it does not generate optimized rotational force according to the wind.

In addition, even if the angle of the blade is adjusted, it takes a lot of time because the windmill must be disassembled and re-installed by setting the angle for each blade, and there is a troublesome problem because the angle must be measured for each blade.

The present invention is to solve the problems as described above, the problem to be solved by the present invention is to provide a wind power generator that can not only easily adjust the angle of the blade, but also firmly fixed the blade.

Wind power generator according to an embodiment of the present invention for achieving the above object is a generator for converting the rotational force into electrical energy, a rotating shaft for rotating the drive shaft of the generator, spaced at regular intervals on a concentric circle located outside the rotating shaft A plurality of blades disposed, a support coupled to the blade and a hinge so that the blade rotates about a vertical axis, and a protractor installed at a portion at which the blade and the support are coupled to indicate a rotation angle of the blade. Wind power generator comprising a.

The goniometer may be provided with a scale formed on one of the blade and the support, and the other may be provided with an indicator member for indicating the scale.

The indicator member may be fixed and released by a fastening force of the bracket in which the hinge hole is formed between the indicator member and the support and fastened to the fastening member of the indicator member and the support.

The bracket may further include an arc-shaped guide groove centered on the hinge hole, and the fastening member may pass through the guide groove to fasten the support and the indicator member to each other.

A pivot protrusion of the bracket protrudes, and a plurality of protrusion insertion holes into which the pivot protrusion is inserted may be formed at a predetermined interval on the concentric circle of the hinge.

The bracket may include a first tooth having a plurality of protrusions radially centered on the hinge, and the support may include a second tooth having a plurality of protrusions engaged with the first tooth about the hinge. have.

The support may be formed in a rod shape so as to connect the plurality of blades to the rotating shaft, respectively, and the cross-sectional shape of the support may be streamlined.

According to the present invention, it is possible to adjust the fine angle of the blade having a goniometer, it is possible to facilitate the fixing and release of the blade by using the fastening force of the fastening member.

In addition, by forming the tilt projection and the tilt groove, the first tooth and the second tooth not only can easily adjust the angle of the blade, there is an effect that can firmly fix the blade.

1 is a perspective view schematically showing a wind power generator according to an embodiment of the present invention.

Figure 2 is an enlarged plan view of the goniometer portion of the wind turbine generator according to an embodiment of the present invention.

Figure 3 is an enlarged perspective view of the goniometer portion of the wind power generator according to an embodiment of the present invention.

4 is an exploded perspective view illustrating a part of the goniometer of the wind turbine generator according to an embodiment of the present invention.

5 is an exploded perspective view illustrating a part of the goniometer of the wind turbine generator according to another embodiment of the present invention.

6 is an exploded perspective view illustrating a part of the goniometer of the wind power generator according to another embodiment of the present invention.

100: wind power generator 110: generator

120: axis of rotation 130: blade

135: bracket 136: upper coupling portion

136a, 137a, 141: hinge ball 136b: guide ball

137: lower coupling portion 140: support

150: goniometer 151: scale

153: indicating member 155: fastening member

161: tilt projection 162: tilt groove

165:

first tooth

165a, 166a: projection

166: second tooth

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

First, the present invention is exemplarily applied to a gyro mill (H-rotor, Gyromill) type wind turbine that rotates about a vertical axis, but can be applied to various types of wind turbines that can adjust the angle of the blade.

1 is a perspective view schematically showing a wind turbine according to an embodiment of the present invention, Figure 2 is an enlarged plan view of the goniometer portion of the wind turbine according to an embodiment of the present invention.

As shown in Figure 1 and 2, the wind turbine 100 according to an embodiment of the present invention includes a generator (110). The generator 110 converts rotational force into electrical energy, and rotates a coil wound around a drive shaft between magnets or rotates a magnet attached to the drive shaft between coils to generate electricity by induction electromotive force. As the generator can be used a known generator, the detailed description thereof will be omitted.

The wind turbine generator 100 includes a rotating shaft 120. The rotary shaft 120 is directly connected to a drive shaft (not shown) of the generator 110 or connected to a power transmission means such as a belt, chain and gear to rotate the drive shaft. And the rotation shaft 120 is formed long in the vertical direction is installed in a state perpendicular to the ground.

The wind power generator 100 includes a blade 130. The blade 130 generates wind and drag due to the wind hit. In addition, a plurality of blades 130 are spaced apart from each other on a concentric circle of the rotation shaft 120 by being separated from the rotation shaft 120. In an exemplary embodiment, three blades 130 are installed on the rotation shaft 120 at intervals of 120 °, but the number of blades 130 is not limited.

On the other hand, the blade 130 is installed in a state perpendicular to the ground in the same manner as the rotating shaft 120 and the side of the blade 130 is installed so as to face the rotating shaft 120 (hereinafter, the blade facing the rotating shaft blade side Is called the medial side). On the other hand, the blade 130 may be formed in a plate shape, the shape of the plane looking at the blade 130 from the top may be formed in a streamlined like a wing of the aircraft.

In addition, the blade 130 is the side where the wind hits, that is, the opposite side (hereinafter, the outer surface of the blade) facing the axis of rotation (120) to the outside of the blade 130 when viewed from the top It is formed to be bent may be formed to widen the surface to which the wind can be contacted. By making the outer surface of the blade 130 bend outward, the area where the wind collides can be widened, and the occurrence of drag and lift can be increased.

In one embodiment, the outer surface of the blade 130 is curved to the outside, but may be formed to be curved to the inside, the inner surface and the outer surface may be formed to be curved outwardly the same. have.

In addition, the blade 130 may be manufactured by an extrusion process, and may be formed of a light metal, a synthetic resin, a hard rubber, a fiber composite, or a mixture thereof.

On the other hand, the blade 130 may be applied to a variety of known blades.

The blade 130 may include a bracket 135. The bracket 135 may be coupled to the blade 130 to connect the blade to the support 140 to be described below.

And, the bracket 135 may be composed of the upper coupling portion 136, the connection portion 138 and the lower coupling portion 137. The upper coupling portion 136 may be formed in an arbitrary plate shape, and a hinge hole 136a may be formed in the central portion thereof. In addition, the lower coupling portion 137 may be positioned to be spaced apart from the upper coupling portion 136 in a lower state, and may be formed in an arbitrary plate shape, and a hinge hole 137a may be formed in a central portion thereof.

At this time, the hinge hole (136a) formed in the upper coupling portion 136 and the hinge hole (137a) formed in the lower coupling portion 137 are formed at the same position in the vertical direction so that the hinge (H) is the upper coupling portion 136 and It may be configured to pass through the hinge holes (136a, 137b) formed in the lower coupling portion 137.

On the other hand, the connecting portion 138 may be formed to connect the ends of the upper coupling portion 136 and the lower coupling portion 137 with each other, is formed in a plate shape on the outer surface blade 130 is fastening means such as bolts or blades It may be welded to be integral with the 130.

In addition, the upper coupling portion 136 may be formed with a guide hole 136b penetrated in an arc shape. The guide hole 136b may be formed on concentric circles of the hinge hole 136a, and a plurality of guide holes may be formed. When the plurality of guide holes 136b are formed, the guide holes 136b may be formed on concentric circles having different diameters.

Meanwhile, the guide hole 136a may be selectively formed in the upper coupling portion 136 or the lower coupling portion 137 according to the indicating member 153 to be described below. For example, when the indicator member 153 is located on the upper surface of the upper coupling portion 136 is formed on the upper coupling portion 136, when the indicator member 153 is located on the bottom surface of the lower coupling portion 137 It may be formed on the lower coupling portion 137.

The wind turbine generator 100 includes a support 140. The support 140 is connected to the rotating shaft 120 and the plurality of blades 130, which can be connected by a hinge (H) so that the blade 130 can be rotated about the vertical axis about the vertical axis of the blade 130. have. On the other hand, the support 140 may be formed in a disk shape around the rotation shaft 120, it may be formed in a rod shape to connect the plurality of blades 130, respectively.

Here, when the support 140 is formed in the shape of a rod, the shape when the support 140 is viewed from the side, that is, the longitudinal cross section of the support 140 may be formed in a streamline so that the wind resistance is reduced. At this time, the support 140 may be positioned so that the front of the blade 130 and the front of the support coincide.

In addition, the support 140 may be formed in a shape through which the hinge hole 141 into which the hinge H is inserted is penetrated, and the hinge hole 141 is coupled to an opposite direction coupled to the rotation shaft 120 of the support 140. It may be formed at the end.

On the other hand, the support 140, the blade 130 may be directly coupled to the support 140 by the hinge (H). In this case, the support 140 may be directly coupled to the support 140 in the form of being positioned at the top or bottom of the blade 130 or only at the bottom.

In one embodiment, the blade 130 has a shape in which the bracket 135 surrounds the end of the support 140, that is, the connection portion 136 of the bracket 135 is positioned such that the blade 130 is positioned outside the support 140. Located on the outside of the support 140, the upper coupling portion 136 is located on the upper portion of the support 140, the lower coupling portion 137 is located on the lower portion of the support 140, the hinge (H) is the upper coupling The blade 130 is coupled to the support 140 in a form that penetrates all the portions 136, the support 140, and the lower coupling portion 137.

In addition, the hinge (H) may be formed in the form of being coupled to each other to protrude from any one of the two members, for example, the bracket 135 and the support 140, the support 140 and the blade 130 are coupled to each other. have.

The support 140 may be provided in plural so as to be spaced apart from each other in the vertical direction of the rotation shaft 120. In one embodiment, as shown in the figure, but installed a pair of supports 140 in the vertical direction of the rotary shaft 120, but the number is not limited.

At this time, the bracket 135 is preferably installed equal to the number of the support 140 in the vertical direction of the blade 130 to be coupled to each support 140.

Figure 3 is an enlarged perspective view of the goniometer portion of the wind power generator according to an embodiment of the present invention, Figure 4 is an exploded perspective view exploding the goniometer portion of the wind power generator according to an embodiment of the present invention.

As shown in FIGS. 3 and 4, the wind power generator 100 may include a goniometer 150. The goniometer 150 may be installed at portions where the plurality of blades 130 and the supporter 140 are connected to each other to display an angle at which the blades 130 are rotated. Meanwhile, the goniometer 150 may be installed only on any one support 140 when the support shaft 140 is installed in the up and down direction on the rotation shaft 120.

And the goniometer 150 may include a scale 151 and the indicator member 153.

The scale 151 may be formed on any one of the blade 130 and the support 140.

For example, as in one embodiment, the scale 151 may be formed in a bracket 135 that is coupled to the blade 130 and more specifically to the blade 130.

At this time, the scale 151 may be formed to display a predetermined angle on the concentric circle located on the outer side of the hinge hole (136b) to which the hinge (H) is coupled to the scale 151, the outer side of the guide hole (136b) Can be located.

Pointing member 153 is formed in the shape of a rod, one end of both ends may be formed to point to the scale 151 by forming a pointed shape, such as a needle, and the like pattern on the support or bracket, for example, a triangle It may be formed in the form of a pattern, such as a grid, or arrows.

Here, the indicator member 153 may be coupled to the other when the scale is formed on any one of the support 140 and the blade 130.

For example, when the scale 151 is formed on the blade 130, the indicator member 153 is coupled to the support 140, when the scale is formed on the support 140, more specifically the blade 130 The indicator member 153 may be coupled to the bracket 135 to which the 130 is coupled.

Scale in one embodiment is formed on the bracket 135, the indicator member 153 is configured to couple to the support 140.

On the other hand, the indicator member 153 may be installed on each of the plurality of blades 130, each of the indicator member 153 is installed so that all parts are formed in the same direction, for example, toward the center of the rotation shaft 120 Can be.

In addition, the indicator member 153 may be located on the upper surface of the upper coupling portion 136 of the bracket 135, the indicator member 153 by the support member 140 and the fastening member 155, such as a bolt, for example. Can be combined.

In this case, when the fastening member 155 is a bolt, the head of the bolt spans the upper portion of the indicator member 153 and passes through the guide hole 136a and the support 140 formed in the bracket 135 to be connected to the nut or bracket 135. It may be configured to be coupled to the lower coupling portion 137 of the.

Therefore, the upper coupling portion 136 of the bracket 135 positioned between the indicator member 153 and the support 140 by the fastening force of the fastening member 155 for fastening the indicator member 153 and the support 140. By pressing, the rotation of the blade 130 can be fixed in the form of fixing the rotation of the bracket 135.

In addition, when the blade 130 is not provided with a bracket 135, and directly coupled to the support 140, the goniometer 150 has an outer side of the hinge H at a portion where the hinge H is coupled to the support 140. The scale 151 is formed on a concentric circle positioned at the point, and the indicator member 153 may be configured to be coupled to the blade 130 to point to the scale 151.

The operation and effects between the components described above will be described.

Blade 130 is coupled to the bracket 135 is rotatably coupled to the support 140 by the hinge (H). And the support 140 is connected to the rotary shaft 120 and the blade 130 to rotate the rotary shaft 120 when the wind hit the blade 130. At this time, the rotating shaft 120 is connected to the generator 110 to rotate the generator 11, thereby generating power.

In addition, the wind turbine 100 is provided with a goniometer 150 at a portion where the blade 130 and the support 140 are connected to adjust the angle of the blade 130. The goniometer 150 is positioned such that the indicator member 153 fixedly coupled to the support 140 points toward the graduation 151 formed on the bracket 135, and is disposed between the support 140 and the indicator member 153. The upper coupling part 136 of the bracket 135 fixes the rotation of the blade 130 by the pressing force of the fastening member 155.

Here, when adjusting the angle of the blade 130, the bracket 135 between the indicator member 153 and the support 140 without separating the fastening member 155 for fastening the indicator member 153 and the support 140. The blade 130 is rotated by releasing the pressing force only to the extent that it can move.

At this time, since the fastening member 155 penetrates the guide hole 136a formed in an arc shape, even when the fastening member 155 is installed in the bracket 135, the bracket 135 is rotated as much as the guide hole 136a is formed. Will not be constrained by

When fastening the rotation of the blade 130, the fastening member 155 is strongly fastened so that the fastening force between the indicator member 153 and the supporter 140 is increased. For example, when the fastening member 155 is a bolt, the bracket 135 is tightened. ) Will be fixed.

Therefore, the angle of the blade 130 can be easily adjusted according to the windy pattern.

5 is an exploded perspective view illustrating a part of the goniometer of the wind turbine generator according to another embodiment of the present invention. In the wind power generator according to another embodiment, the same configuration as in the embodiment has the same reference numerals, and the same configuration has the same effect, and thus detailed description thereof will be omitted.

As shown in FIG. 5, the wind power generator 100 according to another embodiment may have the same configuration as that of one embodiment, but may further include a tilt protrusion 161 and a tilt groove 162.

The tilt protrusion 161 may protrude from the bottom of the upper coupling portion 136 of the bracket 135, and the tilt groove 162 may be an upper surface of the support 140 to which the bracket 135 is coupled, that is, the tilt protrusion ( 161 may be spaced apart by a predetermined angle on the concentric circle of the hinge hole 141 formed in the support portion 140 in a portion corresponding to the 161.

When the bracket 135 on which the tilt protrusion 161 is formed is coupled to the support 140 on which the tilt groove 162 is formed, the tilt protrusion 161 is inserted into any one of the plurality of tilt grooves 162 and the blade 130. Not only can firmly fix the rotation of the blade) can be easily rotated by the blade 130 at a predetermined angle.

For example, when a plurality of tilt grooves 162 are formed at an angle of 5 ° with respect to the hinge hole 141 formed in the support 140, the operator has a tilt protrusion 161 of one space of the tilt groove 162. Since it can be seen that it is rotated at an angle of 5 ° during the movement, the rotation angle of the blade 130 can be easily determined only by the number of slots of the tilting groove 162 to be moved, so that the blade can be easily rotated at a predetermined angle.

In addition, the blade 130 is fixed in the state in which the tilt protrusion 161 is inserted into the tilt groove 162 by the fastening force between the indicating member 153 and the support 140, thereby firmly fixing the blade 130.

On the other hand, the tilt protrusion 161 and the tilt groove 162 may be formed in a substantially hemispherical shape to facilitate insertion and removal.

In addition, the tilt protrusion 161 is formed on the bottom surface of the indicating member 153, the tilt groove 162 is formed on the upper surface of the upper coupling portion 136 of the bracket 135 may be configured to be inserted into each other. Of course.

Therefore, the angle of the blade 130 can be easily adjusted according to the windy pattern to improve the power generation efficiency, and the fixing of the blade 130 can be secured.

6 is an exploded perspective view illustrating a part of the goniometer of the wind power generator according to another embodiment of the present invention. In the wind power generator according to another embodiment, the same configuration as in the embodiment has the same reference numerals, and the same configuration has the same effect, so detailed description thereof will be omitted.

Wind power generator 100 according to another embodiment has the same configuration as the embodiment, but may further include a first tooth 165 and a second tooth 166.

The first tooth 165 has a shape in which a plurality of protrusions 165a protrude radially about a hinge hole 136a formed in the upper coupling portion 136 on the bottom of the upper coupling portion 136 of the bracket 135. The second teeth 166 may be inserted between the plurality of protrusions 165a constituting the first teeth 165 at positions corresponding to the first teeth 165 to engage with each other. The plurality of protrusions 166a may be formed to radially protrude from the hinge hole 141 formed at the center of the hinge hole 141.

When the blade 130 on which the first teeth 165 are formed is coupled to the support 22 on which the second teeth 166 are formed, the protrusions 165a of the first teeth 165 and the protrusions of the second teeth 166 are formed. 166a may be engaged with each other to firmly fix the blade 130 when the blade 130 is fixed.

Meanwhile, the plurality of

protrusions

165a and 166a constituting the first tooth 165 and the second tooth 166 are formed at radially equal angles around the

hinge holes

136a and 141 to form the blade 130. The blade 130 may be configured to rotate at an angle when inserted between the

adjacent protrusions

165a and 166a through one of the

protrusions

165a and 166a during the rotation.

For example, a plurality of projections 165a of the first teeth 165 are formed radially at intervals of 5 °, and the projections 166a of the second teeth 166 are formed with the projections 165a of the first teeth 165. It is formed in a shape corresponding to the protrusion 165a of the first tooth 165 so as to be inserted between the adjacent protrusions 165a.

The first tooth 165 and the second tooth 166 formed as described above have the first tooth 165 having the protrusion 165a of the second tooth 166 positioned between the protrusions 165a of the first tooth 165. The blade 130 rotates by 5 ° every time the protrusion 165a of the blade passes one by one, so that not only the rotation angle of the blade can be easily understood, but also the first tooth 165 and the second tooth 166 mutually Engagement can be firmly fixed to the blade 130.

On the other hand, the first tooth 165 is formed on the upper surface of the lower coupling portion 137 of the bracket 135, the second tooth 166 is formed on the bottom surface of the support 140 to be configured to engage with each other. The second teeth 166 may be formed on the upper and lower surfaces of the support 140, respectively, and the first teeth 165 may be formed on the upper coupling portion 136 and the lower coupling portion 137 of the bracket 135, respectively. It can also be configured in the form of interlocking with each other.

Although the embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and it is recognized that the present invention is easily changed and equivalent by those skilled in the art to which the present invention pertains. Includes all changes and modifications to the scope of the matter.

Claims

A generator that converts torque into electrical energy,

A rotating shaft for rotating the drive shaft of the generator,

A plurality of blades spaced apart at regular intervals on a concentric circle positioned outside the rotation shaft;

A support coupled to the blade by a hinge such that the blade is rotatable about a vertical axis, and

The wind turbine generator, characterized in that installed in the portion where the blade and the support are coupled to indicate the angle of rotation of the blade.
The method of claim 1,

The goniometer is

The scale is formed on any one of the blade and the support, and the other is the wind power generator, characterized in that the indication member for indicating the scale is provided.
The method of claim 2,

The blade further comprises a bracket having a hinge hole is fixed to the blade and the hinge is inserted,

The scale is formed on the bracket and the indicator member is a wind turbine, characterized in that fixed to the support.
The method of claim 3,

The indicator member is characterized in that the bracket is a portion of the hinge hole is formed between the indicator member and the support is fixed and released by the fastening force to be fastened to the fastening member of the indicator member and the support. Power generation device.
The method of claim 3,

The bracket is further formed with a circular guide groove centered around the hinge hole, the fastening member penetrates the guide groove to fasten the support and the indicator member to each other.
The method of claim 3,

The tilt protrusion of the bracket protrudes, and the support includes a plurality of tilt grooves into which the tilt protrusion is inserted at a predetermined interval on a concentric circle of the hinge.
The method of claim 3,

The bracket is provided with a first tooth is formed with a plurality of projections radially around the hinge, the support is provided with a second tooth is formed with a plurality of projections engaging the first tooth around the hinge. The wind turbine characterized in that.
The method of claim 1,

The support is formed in the shape of a rod so as to connect the plurality of blades to each of the rotating shaft, the cross-sectional shape of the support is characterized in that the wind turbine is formed in a streamline.