JP2010077946A - Wind power generation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wind power generation device surely and efficiently rotating a wind turbine stably in a constant direction by adjusting the orientation of a device whole body corresponding to a wind direction to prevent wind from blowing on a head wind side half section of a wind turbine by using a simple facility, and to make wind blow on the other following wind side half section. <P>SOLUTION: This device includes a wind shut-off cover 8a covering one side half of a wind turbine 4, and a wind direction following means adjusting the direction of the device whole body corresponding to the wind direction. The wind direction following means adjusts the orientation of the device whole body to make following wind blow only on the following wind side half section 4 by covering the head wind side half section 4b to make the wind shut-off cover shut off head wind. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wind power generator that rotates a windmill with wind power and rotates the generator by the rotation to obtain electric power.

  2. Description of the Related Art Conventionally, a wind turbine generator is known in which a wind turbine is rotatably supported on a vertical center shaft (or a horizontal center shaft that is supported horizontally) that is erected vertically (see Patent Document 1).

In this wind turbine generator, a wind turbine having a plurality of blades is rotatably supported on a vertical central axis, and the wind turbine is rotated by applying wind from a direction orthogonal to the vertical central axis, and the generator is rotated by the rotation. To get power.
When the wind is received, the blades are closed and the wind is received. When the wind is received, the blades are opened to allow the wind to escape, so that the direction of rotation can be stably maintained even when the wind direction changes. It is said that.

However, in the case of rotating the windmill around the vertical central axis by the wind from the direction perpendicular to the vertical central axis, the wind does not obtain the rotational force of the windmill because the wind hits the plurality of blades in the same direction. As in the past, it is difficult to stably rotate the windmill in a certain direction by opening and closing the blades.
Japanese Patent Publication No. 2008-106622

  When rotating the windmill around the central axis by wind from a direction perpendicular to the central axis (vertical central axis, horizontal central axis), make sure that the wind does not hit the half wind of the windmill around the central axis. The most effective rotation can be achieved by letting the wind strike only the front half.

  The present invention pays attention to the above points, and adjusts the direction of the entire apparatus (wind shield cover) corresponding to the direction of the wind, so that the wind hits the half wind of the wind turbine while using simple equipment. It is an object of the present invention to provide a wind turbine generator that can stably rotate the windmill in a certain direction with certainty and efficiency by allowing the wind to hit only the other half side of the forward wind side. .

In order to solve the above-described problems, a wind turbine generator of the present invention (Claim 1)
A swivel board (2) supported on the base (1) so as to be rotatable in a horizontal direction, a vertical center axis (3) erected perpendicularly to the swivel center of the swivel board, and rotatable about the vertical center axis A wind turbine (4) supported by the wind turbine, a plurality of blades (41) constituting the wind turbine, a canvas (43) stretched as a wind receiving surface of each blade, and a generator ( 61), a windshield cover (8a) made of a canvas covering one half of the windmill with the vertical central axis as a boundary, and wind direction tracking means for adjusting the direction of the entire apparatus corresponding to the direction of the wind,
The wind direction following means rotates the swivel board so that the wind shield covers the reverse wind side half (4b) of the wind turbine so that the wind shield cover blocks the reverse wind and only the forward wind side half (4a) hits the wind. The configuration is such that the orientation of the entire apparatus is adjusted.

The wind power generator of the present invention (Claim 2)
A swivel board (2) supported on the base (1) so as to be rotatable in the horizontal direction, a horizontal center axis (3a) supported horizontally on the swivel board, and rotatable on the horizontal center axis (3a). A supported windmill (4), a plurality of blades (41) constituting the windmill, a canvas (43) stretched on the wind receiving surface of each blade, and a generator (61 connected to the windmill) ), A windshield cover (8a) made of a canvas covering one half of the windmill with the horizontal central axis as a boundary, and a wind direction following means for adjusting the direction of the entire apparatus corresponding to the direction of the wind,
The wind direction following means rotates the swivel board so that the wind shield covers the reverse wind side half (4b) of the wind turbine so that the wind shield cover blocks the reverse wind and only the forward wind side half (4a) hits the wind. A wind power generator characterized in that the orientation of the entire apparatus is adjusted.

  The wind turbine generator according to the present invention (Claim 3) is the wind turbine generator according to Claim 1 or 2, further comprising a wind introduction hood (8b) for introducing the wind in the half of the wind turbine side of the wind turbine. It was set as the composition.

  The wind power generator according to the present invention (Claim 4) is the wind power generator according to Claim 1, 2 or 3, wherein the canvas is formed so as to be able to be wound and fed, and the wind receiving area can be increased or decreased. The windshield cover is formed so as to be able to be wound and fed so that the wind area can be increased or decreased.

  The wind power generator according to the present invention (Claim 5) is the wind power generator according to Claim 1, 2 or 3 or 4, wherein the base is floated on a support (15) provided on land or on water. It was set as the structure currently formed on the float (9).

The wind power generator according to the present invention (Claims 1 and 2) can adjust the direction of the entire apparatus in accordance with the direction of the wind by the wind direction following means, and the center axis (vertical center axis, horizontal center axis) can be adjusted. As a boundary, one half of the windmill can be covered with a windshield cover.
That is, since the direction of the windshield cover can be adjusted by adjusting the direction of the entire device corresponding to the direction of the wind by the wind direction tracking means, the windshield cover prevents the wind from hitting the half wind side of the windmill. On the other hand, the wind can be applied only to the front wind side half.
As a result, the windmill can be stably and efficiently rotated stably in a certain direction.

  Further, since the canvas is stretched on the wind receiving surface of each blade constituting the windmill, the weight of the windmill can be reduced and the manufacturing cost can be reduced.

  In the wind turbine generator of the present invention (Claim 3), since the wind introduction hood for introducing the smooth wind is provided in the half of the smooth wind side of the windmill, the escape of the wind can be suppressed, and the smooth wind is surely applied to the windmill. The windmill can be rotated efficiently by taking in.

In the wind power generator of the present invention (Claim 4), the canvas stretched around the blades of the windmill is formed so as to be able to be wound and fed out, and the wind receiving area can be increased or decreased.
Thus, if the canvas is drawn out to increase the wind receiving area, the windmill can be rotated while efficiently taking in the wind.

  During typhoons and strong winds, the typhoon and strong wind can be escaped by winding the canvas to reduce the wind receiving area and winding the windshield cover to reduce the wind area. It is possible to prevent the damage caused by receiving.

  Moreover, the wind power generator of the present invention may be installed on land or on water such as on the sea or on a lake (Claim 5).

FIG. 1 is a partially cutaway side view showing a wind turbine generator according to a first embodiment of the present invention corresponding to claim 1, and FIG. 2 is a cross-sectional view showing the main part of the wind turbine generator.
In addition, this 1st Example is an example at the time of installing on land.

  In the figure, reference numeral 1 denotes a base, which is installed on a support column (15) erected on the land surface G1, and a horizontal plate 10 is installed at the bottom of a pit formed on the upper surface. It is supported so as to be rotatable in the horizontal direction.

The swivel board 2 is supported by a plurality of rollers 20 attached to the lower surface thereof, and an annular gear 21 is formed on the lower surface of the swivel board 2, and the gear 50 of the drive motor 5a meshes with the annular gear 21. Has been.
Accordingly, by driving the drive motor 5a (forward / reverse), the revolving substrate 2 can be rotated in either the right rotation or the left rotation around the shaft support portion 22.

A vertical center shaft 3 is erected vertically at the center of the swivel board 2, and a windmill 4 is rotatably supported on the vertical center shaft 3.
The wind turbine 4 has a structure in which a plurality (five in the embodiment) of blades 41 are radially attached to a tube shaft 40 fitted to the vertical central shaft 3 at equal intervals.

Each blade 41 has a canvas 43 as a wind receiving surface stretched inside a rectangular frame 42, and wind receiving plates 44 and 45 are attached to the upper and lower and inner and outer peripheral sides of the frame 42 so as to be inclined inward. Yes.
In this way, the use of the canvas 43 on the wind receiving surface can reduce the weight of the wind turbine 4 and reduce the manufacturing cost. By providing the wind receiving plates 44 and 45, the wind receiving surface ( Can be directed into the canvas 43).

Each of the canvases 43 is formed so as to be able to be wound and unwound so that the wind receiving area can be increased or decreased.
In this case, the winding shaft 71 rotated by the winding motor 70 is pivotally supported on the proximal end side of the blade 41, while the feeding shaft 73 rotated by the feeding motor 72 is pivotally supported on the distal end side of the blade 4. When the area is decreased, the wind receiving area is decreased by winding the canvas 43 around the winding shaft 71 by driving the winding motor 70. At this time, the feeding shaft 73 (feeding motor 72) rotates freely.
On the other hand, when the wind receiving area is increased, the canvas 43 is fed out by winding the wire 74 connected to the tip of the canvas 43 around the feeding shaft 73 by driving the feeding motor 72, thereby increasing the wind receiving area. At this time, the winding shaft 71 (winding motor 70) rotates freely.

  Thus, if the canvas 43 is fully extended to increase the wind receiving area, the windmill 4 can be rotated while efficiently taking in the wind. In the case of a typhoon or strong wind, the canvas 73 is wound to reduce the wind receiving area. By reducing it, typhoons and strong winds can be released.

Further, each blade 41 is connected by connecting wire 46 between the outer peripheral ends thereof to maintain the distance between the blades 41 and 41 and is suspended by a suspension wire 47 from the upper end portion of the tube shaft 40. Supports holding state.
In addition, the rotation direction of the windmill 4 is an arrow B direction in FIG.

  A gear 60 is fixed to the upper end of the tube shaft 40, while a gear 62 is attached to a generator 61 fixed to the vertical central shaft 3, and both the gears 60, 62 are meshed to generate rotation of the windmill 4. It is transmitted to the machine 61 and rotated to obtain electric power.

A wind direction sensor 5b is rotatably provided at the upper end of the vertical central shaft 3. The wind direction sensor 5b and the drive motor 5a form wind direction tracking means (denoted by reference numeral 5 in the specification).
This wind direction follow-up means 5 adjusts the direction of the entire device in accordance with the direction of the wind. The wind direction sensor 5b detects that the wind direction changes, and the drive motor 5a is driven based on this. It is possible to adjust the rotation of the swivel board 2 and thereby adjust the orientation of the entire apparatus.

A windshield cover 8a made of canvas is attached to the vertical central shaft 3 so as to cover one half of the windmill 4 with the vertical central shaft 3 as a boundary.
The windshield cover 8a is provided on the wind-opposing side of the windward side half 4b of the windward side half 4b of the windmill 4 which is windy with respect to the wind direction and the windward half half 4b of the windmill 4 which is wind against the wind direction. It is formed to be curved so as to cover a portion from the front to the side.
Accordingly, it is possible to apply the normal wind only to the forward wind side half portion 4a without applying the wind to the reverse wind side half portion 4b.

Further, a wind introduction hood 8b made of canvas is provided integrally with the windshield cover 8a.
This wind introduction hood 8b is for introducing the wind to the wind-front side half 4a of the windmill 4. A wind-introduction port 80 is formed in front of the wind-opposing side, and a side surface of the wind-side half 4a from this wind-inlet 80. A wind outlet 81 is formed on the back surface side.

Therefore, even if the direction of the wind changes, the direction of the entire apparatus can be adjusted by the wind direction tracking means 5 in accordance with the direction of the wind, and accordingly the directions of the wind shielding cover 8a and the wind introduction hood 8b are also adjusted. Can be adjusted.
Thus, the wind shielding cover 8a prevents the wind from hitting the reverse wind side half 4b of the windmill 4, and on the other hand, the wind can be applied only to the forward wind side half 4a. Can be rotated stably.

Further, since the wind introduction hood 8b for introducing the smooth wind to the smooth wind side half portion 4a of the wind turbine is provided, the escape of the wind can be suppressed, and the smooth wind is reliably taken into the wind turbine 4 to efficiently rotate the wind turbine 4. be able to.
The wind introduction hood 8b is not always necessary.

Further, the windshield cover 8a and the wind introduction hood 8b are also formed so as to be able to be wound and fed out so that the wind area can be increased or decreased.
Also in this case, the take-up motor 86 is rotated by the take-up motor 85, and on the other hand, the feed shaft 88 is supported by the feed motor 87. The wind-insulating area is reduced by winding the wind-shielding cover 8a and the wind introduction hood 8b around the winding shaft 86. At this time, the feeding shaft 88 (feeding motor 87) rotates freely.
On the other hand, when the wind blowing area is increased, the wind shielding cover 8a by winding the wire 89 connected to the tip of the wind shielding hood 8b and the wind introduction hood 8b by driving the feeding motor 87 and the winding shaft 88, The wind introduction hood 8b is fed out to increase the wind area. At this time, the winding shaft 86 (winding motor 85) rotates freely.
Thereby, a typhoon and a strong wind can be escaped.

Next, FIG. 3 is a partially cutaway side view showing a wind turbine generator according to a second embodiment of the present invention corresponding to claim 5.
This wind power generator is an example installed on the sea (or on a lake).
A float 9 is floated on the sea surface W (which may be a lake surface), and a horizontal plate 10 serving as a base 1 is installed at the bottom of a pit formed on the upper surface of the float 9. A similar wind power generator is installed.

The float 9 is moored to an anchor 91 fixed to the sea bottom G2 via a wire rope 92, and a balancer 93 is provided around the anchor 9 in order to suppress fluctuations caused by waves. The frames 94 are connected.
Other configurations and operations are the same as those in the first embodiment.

Next, FIG. 4 is a partially cutaway side view showing a wind turbine generator according to a third embodiment of the present invention corresponding to claim 2.
This wind power generator is an example in which the wind turbine 4 is formed in a structure that rotates around a horizontal central axis 3a.
The swivel board 2 is supported on the horizontal plate 10 of the base 1 so as to be rotatable in the horizontal direction, and a horizontal central shaft 3a is passed between the left and right frames 25, 25 standing on the swivel board 2, and the horizontal center A windmill 4 is rotatably supported on the shaft 3a.
Other configurations and operations are the same as those in the first embodiment.

  In the present invention, the windmills as shown in the first and second embodiments are provided in several vertical stages on the vertical central axis, or the windmills as shown in the third embodiment are provided on the horizontal central axis. It is also possible to provide in several rows in the left-right direction. In this case, the device becomes taller or longer, so a design that ensures stability is required.

1 is a partially cutaway side view showing a wind turbine generator according to a first embodiment of the present invention. It is a cross-sectional view which shows the principal part of the wind power generator. It is a partially notched side view which shows the wind power generator concerning 2nd Example of this invention. It is a partially notched side view which shows the wind power generator concerning 3rd Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 10 Horizontal plate 2 Turning board 25 Frame 3 Vertical center axis 3a Horizontal center axis 4 Windmill 4a Front wind side half 4b Back wind side half 40 Tube axis 41 Blade 43 Canvas 44 Wind receiving plate 45 Wind receiving plate 46 Connecting wire 47 Hanging Wire 5a Drive motor 5b Wind direction sensor 61 Generator 70 Winding motor 71 Winding shaft 72 Feeding motor 73 Feeding shaft 74 Wire 8a Wind shield cover 8b Wind introducing hood 80 Wind introducing port 81 Wind outlet 9 Float 93 Balancer G1 Ground G2 Sea bottom

Claims (5)

A swivel board (2) supported on the base (1) so as to be rotatable in a horizontal direction, a vertical center axis (3) erected perpendicularly to the swivel center of the swivel board, and rotatable about the vertical center axis A wind turbine (4) supported by the wind turbine, a plurality of blades (41) constituting the wind turbine, a canvas (43) stretched as a wind receiving surface of each blade, and a generator ( 61), a windshield cover (8a) made of a canvas covering one half of the windmill with the vertical central axis as a boundary, and wind direction following means for adjusting the direction of the entire apparatus corresponding to the direction of the wind,
The wind direction following means rotates the swivel board so that the wind shield covers the reverse wind side half (4b) of the wind turbine so that the wind shield covers the reverse wind, and the forward wind only hits the forward wind side half (4a). It is formed so that direction of the whole apparatus may be adjusted, The wind power generator characterized by the above-mentioned. A swivel board (2) supported on the base (1) so as to be rotatable in the horizontal direction, a horizontal center axis (3a) supported horizontally on the swivel board, and rotatable on the horizontal center axis (3a). A supported windmill (4), a plurality of blades (41) constituting the windmill, a canvas (43) stretched on the wind receiving surface of each blade, and a generator (61 connected to the windmill) ), A windshield cover (8a) made of a canvas covering one half of the windmill with the horizontal central axis as a boundary, and a wind direction following means for adjusting the direction of the entire apparatus corresponding to the direction of the wind,
The wind direction following means rotates the swivel board so that the wind shield covers the reverse wind side half (4b) of the wind turbine so that the wind shield cover blocks the reverse wind and only the forward wind side half (4a) hits the wind. A wind power generator characterized in that the orientation of the entire apparatus is adjusted.   The wind turbine generator according to claim 1 or 2, wherein a wind introduction hood (8b) for introducing a draft to the half wind side of the wind turbine is provided.   The wind power generator according to claim 1, 2 or 3, wherein the canvas is formed so as to be able to wind and unwind, and the wind receiving area can be increased and decreased, and the wind shield cover is formed so as to be able to wind and unwind. A wind power generator that is configured to increase or decrease. 5. The wind turbine generator according to claim 1, 2, 3, or 4, wherein the base is formed on a support column (15) provided on land or a float (9) floated on water.

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