JPH11193774A - Aerogenerator and aerial obstruction lamp used in the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leading blade of an aerogenerator with an aerial obstruction lamp and a luminous portion equivalent thereto. SOLUTION: An aerogenerator 10 is formed of a prop 11 that stands on the ground, a support portion 11 disposed on the upper portion of the prop 11, and a rotor 13 rotatively supported around a rotation axis O substantially horizontal to the support portion 12. The rotor 13 is provided with a plurality of blades 13a concentrically arranged so as to be turned around by the wind. The aerogenerator 10 is further formed of a generator having a driving axis interlocked with the center portion 13b of the rotor 13, a scattered reflection body 14 attached to the leading end of each of the blades 13a, and a projector portion 15. A light beam 100 is projected from the projection portion 15 to the scattered reflection body 14 toward the position around the point to which the leading end of the blade 13a reaches at the maximum distance. The scattered reflection body 14 diffuses the light beam that has been projected from the projector portion 15 so as to constitute the luminous portion equivalent to the aerial obstruction lamp.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind power generator and an aviation obstruction light device used for the same, and more particularly to a wind power generator having an aviation obstruction light substantially at the tip of an impeller blade. The present invention relates to an aviation obstacle light device to be used.

[0002]

2. Description of the Related Art In recent years, wind power generators have attracted attention from the viewpoint of prevention of global warming and the like. In general, a wind power generation device includes a support portion erected on the ground, a support portion disposed on an upper portion of the support portion, and a rotatable support about a rotation axis substantially horizontal to the support portion. An impeller having a plurality of blades concentrically and rotating in response to wind, and a generator having a drive shaft interlocked with the center of the impeller. In such a wind power generator, the impeller rotates in response to the wind, whereby the drive shaft of the generator is rotated,
Electric power is generated by a generator.

A conventional wind power generator has a maximum of 250k.
In many facilities, the maximum height of the blades is relatively small, less than 60 m, but recently, in order to obtain a larger power, the height of the support section has been increased by, for example, about 750 kW. A relatively large wind power generator has been developed in which the diameter is 40 m and the diameter of the impeller is 25 m. Such a large wind power generator, its height,
In particular, the height of the highest position of the tip of the impeller blade is 6
0 m will be exceeded.

According to the Enforcement Regulations of the Civil Aeronautics Act, in order to ensure safe operation of aircraft, structures exceeding 60 m above the ground, such as high-rise buildings, chimneys, power transmission towers, etc., are required to notify aircraft of their existence. Obstacle lights must be installed.

[0005]

On the other hand, the conventional aviation obstruction light is basically constructed in the same manner as a normal lamp, so that it is difficult to install it at the tip of the blade. there were. For this reason, in a conventional wind power generator,
A method of installing a conventional aviation obstruction light on the upper part of the support or a stanchion for installing the aviation obstruction light adjacent to the wind power generator and separately from the support of the wind power generator, A method has been adopted in which an aviation obstacle light is provided on the upper part of a pillar for light installation.

[0006] However, in the former method, the diameter of the blade may exceed 50 m, for example, and the height of the aviation obstruction light at the tip of the blade passing the highest position and the upper part of the column is greatly different. So it was not always enough for safety.

[0007] In the latter method, a pillar for installing an aviation obstacle light is required separately from the pillar of the wind power generator, so that the cost is increased. In addition, when the impeller of the wind power generator is configured to be able to rotate around a vertical axis with respect to the support in accordance with the direction of the wind, the support for the aviation obstruction light is: It has to be installed farther than the length of the blade from the support of the wind power generator. For this reason, the position where the aviation obstruction light emits (near the upper part of the column for installing the aviation obstruction light) is far away from the vicinity of the highest position of the wind power generator blade where the aviation obstruction light is actually required. It was not always safe enough.

The present invention has been made in view of such circumstances, and a wind power generator having a light-emitting portion equivalent to an aircraft obstacle light at the tip of a blade of the wind power generator, and an aircraft obstacle light device used therefor The purpose is to provide.

[0009]

In order to solve the above-mentioned problems, a wind power generator according to a first aspect of the present invention comprises a support erected on the ground and a support disposed above the support. And an impeller rotatably supported about a rotation axis substantially horizontal to the support portion, the impeller having a plurality of blades concentrically and rotating by receiving wind, and the impeller. A wind turbine generator having a generator having a drive shaft interlocked with a central portion of the plurality of blades, a scattering reflector provided at a tip of at least one of the plurality of blades, and a tip of each of the blades. Light projecting means for irradiating a light beam toward the vicinity of the highest arrival position. The scattering reflector is
It may be provided at the tip of all the blades, or may be provided at the tip of some of the blades.

According to the first aspect, when the tip of the blade provided with the scattering reflector among the plurality of blades of the impeller that rotates in response to the wind passes near the highest reaching position, During the period from immediately before to immediately after the tip of the blade reaches the highest position, the light from the light projecting means hits the scattering reflector provided at the tip of the blade, and the scattering reflector diffusely reflects the light from the light projecting means. I do. Thus, when viewed from the outside, when the blade provided with the rotating scattering reflector is substantially vertical and its tip passes near the highest reaching position, the tip of the blade appears to glow. Become. Therefore, without the conventional aviation obstruction light consisting of a lamp attached to the tip of the blade, the vicinity of the highest position of the blade flashes with the rotation of the impeller, and the highest position of the blade is substantially achieved. A light-emitting portion similar to an aviation obstacle light can be provided in the vicinity.

The wind power generator according to a second aspect of the present invention is the wind power generator according to the first aspect, wherein a predetermined angle is set before and after rotation of the tip with respect to the highest position of the tip of each blade. The second and third light sources respectively irradiate light beams toward the vicinity of the second and third arrival positions shifted by only
Are provided.

According to the second aspect, of the plurality of blades of the impeller rotating in response to the wind, the tip of the blade provided with the scattering reflector is located near the highest reaching position and at the highest reaching position. When passing through the vicinity of the second and third arrival positions before and after, the scattering reflector provided at the tip end of the blade diffusely reflects light from the corresponding light projecting means in the same manner as described above. . Thereby, when observed from the outside, when the tip of the blade provided with the rotating scattering reflector passes not only near the highest arrival position but also near the second and third arrival positions, the tip of the blade is It will appear to glow. Therefore, with the rotation of the impeller, not only the vicinity of the highest arrival position of the blade but also the vicinity of the second and third arrival positions flashes and emits light. A light-emitting portion similar to the aviation obstacle light can be provided near the third arrival position. For this reason, the second and third arrival positions are set so as to be the arrival position closest to the most one arrival position in the horizontal direction of the tip portion of each blade and the arrival position closest to the most other arrival position in the horizontal direction. If viewed from an aircraft in the sky, it is preferable to be able to grasp the approximate size of the entire wind power generator.

A wind power generator according to a third aspect of the present invention is the wind power generator according to the first or second aspect, wherein each of the light projecting means is disposed near the ground.

According to the third aspect, since each light projecting means is arranged near the ground, a person can easily approach the light projecting means. Therefore, when the light source lamp or the like of the light projecting means breaks down, the light source lamp or the like can be easily replaced.

A wind power generator according to a fourth aspect of the present invention is the wind power generator according to any one of the first to third aspects, wherein the support portion is rotatable around a vertical axis with respect to the support portion. , And each of the light projecting means includes a plurality of light projectors respectively arranged at a plurality of positions in a direction at substantially equal angular intervals with respect to the support portion in the horizontal direction.

According to the fourth aspect, when the support portion rotates around the vertical axis so that the impeller always faces windward, what kind of rotation the support portion makes around the vertical axis Even at the position, the light beams from the projectors respectively arranged at a plurality of positions are radiated toward the highest reaching position or the second and third reaching positions of the tip of the blade of the impeller rotating by receiving the wind. Is done. Thereby, even when the support part rotates about the vertical axis so that the impeller is directed to the windward, the blade provided with the scattering reflector among the plurality of blades of the impeller that rotates by receiving the wind is provided. Is near the highest position,
In some cases, when passing through the vicinity of the second and third arrival positions, the scattering reflector provided at the tip of the blade diffusely reflects light from the corresponding light projector. Accordingly, when viewed from the outside, when the tip of the blade provided with the rotating scattering reflector passes near the highest arrival position and possibly near the second and third arrival positions, the blade is The tip will look shiny. Therefore, even in the case where the support part rotates around the vertical axis so that the impeller receives the wind and faces toward the windward, with the rotation of each impeller, the vicinity of the highest arrival position of the blade and In some cases, the vicinity of the second and third arrival positions flashes and emits light, and substantially the same light emission as the aviation obstruction light near the maximum arrival position of the blade and in some cases near the second and third arrival positions. Parts can be provided.

A wind power generator according to a fifth aspect of the present invention is the wind power generator according to the first or second aspect, wherein each of the light projecting means is fixed to the support. It is.

According to the fifth aspect, since each of the light projecting means is fixedly installed on the supporting portion, the supporting portion has a vertical axis so that the impeller always faces windward. Even when rotating around, each light emitting means can always face the impeller. Therefore, even when the support part rotates around the vertical axis so that the impeller receives the wind and faces toward the windward while reducing the number of light projectors used as the respective light projecting means, it does not affect the wind direction. However, with the rotation of each impeller, the vicinity of the highest arrival position of the blade and in some cases the vicinity of the second and third arrival positions will flash and emit light, and substantially near the highest arrival position of the blade and in some cases. May have a light-emitting portion similar to the aviation obstacle light near the second and third arrival positions.

The wind power generator according to a sixth aspect of the present invention is the wind power generator according to the fifth aspect, wherein each of the light projecting means is fixed to the support portion and the rotating shaft of the impeller relative to the impeller is provided. A light emitter disposed on one side in the direction, and a light emitter fixed to the support and disposed on the other side in the direction of the rotation axis with respect to the impeller.

According to the sixth aspect, since each light projecting means has a pair of light projectors arranged on both sides with respect to the impeller, the radiation range of the scattered light by the scattering reflector can be expanded. ,preferable. However, in the fifth aspect,
Each projection means may have only a projector arranged on one side with respect to the impeller.

A wind power generator according to a seventh aspect of the present invention is the wind power generator according to any one of the first to sixth aspects, wherein a rotation position detecting means for detecting a rotation position of the impeller; Based on the detection signal from the position detection means, only when the tip of the blade provided with the scattering reflector at the tip is located near the highest reaching position, or, alternatively, the tip of the blade Is driven only so that the light projecting means corresponding to the arrival position emits a light beam only when the light projecting means is located near the highest arrival position and the second and third arrival positions. It is provided with drive control means.

According to the seventh aspect, only when the tip of the blade provided with the scattering reflector is located at each arrival position, the light emitting means corresponding to the arrival position emits a light beam. Will be. Therefore, when the tip of the blade provided with the scattering reflector moves to a position where the light from the light emitting unit is not irradiated, the light emitting unit does not emit light,
Unnecessary light beam irradiation is prevented, and power consumption can be reduced.

A wind power generator according to an eighth aspect of the present invention is directed to a wind power generator, comprising: a support standing upright on the ground; a support disposed above the support; and a rotating shaft substantially horizontal to the support. An impeller rotatably supported around, having a plurality of blades concentrically and rotating by receiving wind, and a generator having a drive shaft interlocked with the center of the impeller A wind power generator having an optical fiber that guides light incident from an incident end and emits the light from an emission end, such that the emission end is located at the tip of at least one of the plurality of blades. An optical fiber fixed to the blade, and light incident means for emitting light to the incident end of the optical fiber, the light incident means having a light source emitting light incident on the incident end of the optical fiber, It is provided.

According to the eighth aspect, the output end of the optical fiber whose output end is located at the tip of at least one of the plurality of blades of the impeller that rotates in response to the wind from the output end of the optical fiber. Since the light incident on the incident end by the light incident means is emitted, when observed from outside,
The tip of the blade of the rotating impeller will appear to glow. Therefore, the tip of the blade emits light without attaching the conventional aviation obstruction light consisting of a lamp to the tip of the blade, and a light emitting portion substantially similar to the aviation obstacle light is provided at the tip of the blade. Can be prepared.

The wind power generator according to a ninth aspect of the present invention is the wind power generator according to the eighth aspect, wherein the light source is located near a rotation axis of the impeller.
The optical fiber is fixedly installed on the supporting portion, and an incident end of the optical fiber is arranged close to the light source.

According to the ninth aspect, the light source is fixedly installed on the support so as to be located on the rotation axis of the impeller, and the incident end of the optical fiber fixed to the impeller is the same as the light source. Since the optical fiber is arranged close to the light source, the optical fiber also rotates together with the blade when the impeller rotates, but the incident end of the optical fiber is always close to the light source. Therefore, light can be reliably transmitted to the light source fixed to the support portion and the optical fiber fixed to the rotating blade side.

[0027] In a wind power generator according to a tenth aspect of the present invention, in the wind power generator according to the eighth aspect, the light source is disposed near the ground, and the light incident means emits light emitted by the light source. It has a relay optical fiber for guiding to the input end of the optical fiber.

According to the tenth aspect, light is transmitted from the light source disposed near the ground to the optical fiber fixed to the blade via the relay optical fiber such that the emission end is located at the tip of the blade. Incident. Since the light source is arranged near the ground in this way, a person can easily approach the light source. Therefore, when a light source such as a lamp fails, the light source can be easily replaced.

The wind turbine generator according to an eleventh aspect of the present invention is the wind turbine generator according to any one of the eighth to tenth aspects, wherein the wind turbine generator has a rotation position detecting means for detecting a rotation position of the impeller; Based on the detection signal from the position detection means, only when the tip of the blade to which the optical fiber is fixed is located near the highest arrival position,
Alternatively, when the tip of the blade is located near the highest reaching position and near the second and third reaching positions shifted by a predetermined angle before and after rotation of the tip with respect to the highest reaching position. Only a drive control unit for driving the light source is provided so that the light source is turned on.

According to the eleventh aspect, of the plurality of blades of the impeller rotating in response to the wind, only when the tip end of the blade provided with the optical fiber passes near the highest reaching position, or Only when passing near the highest arrival position and near the second and third arrival positions shifted by a predetermined angle before and after rotation of the tip with respect to the highest arrival position,
Light is emitted from the emission end of the optical fiber located at the tip of the blade. Therefore, with the rotation of the impeller, the vicinity of the highest position of the blade will flash and emit light, and a light-emitting portion similar to an aircraft obstacle light can be provided substantially near the highest position of the blade. Also, when light is emitted from the emission end of the optical fiber located at the tip of the blade when the tip of the blade passes near the second and third arrival positions, the vicinity of the highest arrival position of the blade is also considered. Not only near the highest arrival position of the blade but also near the second and third arrival positions, a light emitting portion similar to an aviation obstruction light is emitted not only near the second and third arrival positions but also near the second and third arrival positions. Can be provided. For this reason, the second and third arrival positions are set so as to be the arrival position closest to the most one arrival position in the horizontal direction of the tip portion of each blade and the arrival position closest to the most other arrival position in the horizontal direction. If viewed from an aircraft in the sky, it is preferable to be able to grasp the approximate size of the entire wind power generator. According to the eleventh aspect, the light source is not always turned on but blinks, so that power consumption is reduced.

An aviation obstruction light device for a wind power generator according to a twelfth aspect of the present invention is an aviation obstruction light device for a wind power generation device provided at a tip end of a blade of an impeller of the wind power generation device. Power storage means for storing the power generated by the solar cell, attitude detection means for detecting the attitude of the aircraft obstruction light, light emitting device, based on a detection signal from the attitude detection means, the light emitting device And a drive control means for performing drive control, wherein the attitude detection means, the light emitting device and the drive control means are operated by being supplied with power from the power storage means.

The obstacle light device for a wind power generator according to a thirteenth aspect of the present invention is the aircraft obstacle light device for a wind power generator according to the twelfth aspect, wherein at least one of the light emitters is provided.
It consists of two light emitting diodes.

[0033] A wind power generator according to a fourteenth aspect of the present invention is a wind power generator, comprising: a support standing on the ground; a support disposed above the support; and a rotating shaft substantially horizontal to the support. An impeller rotatably supported around, having a plurality of blades concentrically and rotating by receiving wind, and a generator having a drive shaft interlocked with the center of the impeller In the wind turbine generator having at least one of the plurality of blades, an aviation obstacle light device for a wind turbine generator according to the twelfth or thirteenth aspect is provided at a tip end of at least one of the plurality of blades.

The wind power generator according to a fifteenth aspect of the present invention is the wind power generator according to the fourteenth aspect, wherein the drive control means of the aviation obstacle light device for the wind power generator comprises: Only when the tip of the blade provided with the lighting device is located near the highest reaching position, or when the tip of the blade is rotated near the highest reaching position and with respect to the highest reaching position. The light emitting device is driven so that the light emitting device of the aviation obstruction light device for the wind power generation device is turned on only when the light emitting device is located near the second and third arrival positions shifted by a predetermined angle before and after. Is what you do.

According to the twelfth to fifteenth aspects, the aviation obstacle light device for the wind power generator is supplied with power by the solar cell and the power storage means storing the power generated by the solar cell, and the light emitter is driven. At the same time, based on the detection signal from the attitude detecting means, when the aviation obstacle light device for the wind turbine generator has a predetermined attitude, the drive control means causes the light emitting diode to emit light. Thus, for example, when the rotating blade is substantially vertical and its tip passes near the highest arrival position, if the attitude detecting means is set to send out a detection signal, the tip of the blade becomes the highest. The light emitter emits light when passing near the arrival position. Therefore, without attaching the conventional aviation obstruction light to the tip of the blade,
With the rotation of each blade, the vicinity of the highest position of the blade blinks and emits light, so that a light-emitting portion similar to an aircraft obstacle light can be provided substantially near the highest position of the blade.

In this case, the aviation obstruction light device for the wind power generator does not require external power supply, and is therefore configured as a single unit. Therefore, simply attaching the unitized aviation obstruction light device to the tip of the blade of the wind power generator, without special wiring, etc., can be easily applied to the tip of the wing as a light emitting part equivalent to an aviation obstruction light. Can be provided.

When a light emitting diode is used as a light emitting device as in the thirteenth aspect, the power consumption is significantly smaller than that of a lamp or the like. There is no possibility of becoming a state, which is more preferable.

A wind power generator according to a sixteenth aspect of the present invention is the wind power generator according to any one of the first to eleventh, fourteenth, and fifteenth aspects, wherein the lamp is disposed near an upper portion of the column. Aviation obstruction lights.

According to the sixteenth aspect, even when the luminous intensity of the scatterer, the optical fiber, and the light emitting device is not always sufficient, the luminous intensity can be complemented by the aviation obstruction light by the lamp, which is preferable.

[0040]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A wind power generator according to the present invention and an aviation obstruction light device for the wind power generator used therein will be described below with reference to the drawings.

(First Embodiment) First, the first embodiment of the present invention will be described.
The wind power generator according to the embodiment will be described with reference to FIGS.

FIG. 1 is a schematic side view showing a wind turbine generator according to the present embodiment. FIG. 2 is a schematic front view showing the wind turbine generator shown in FIG. FIG. 3 is a schematic plan view showing the wind power generator shown in FIG.

The wind power generator 10 according to the present embodiment
As shown in FIG. 1 to FIG. 3, a pillar 1 erected on the ground
1, a support portion 12 disposed on the upper portion of the support portion 11,
An impeller 13 rotatably supported about a rotation axis O substantially horizontal to the support portion 12, the impeller 13 having a plurality of blades 13a concentrically and rotating by receiving wind; A generator (not shown) having a drive shaft (not shown) interlocked with the central portion 13b of the vehicle 13, a scattering reflector 14 attached to the tip of each blade 13a, and a light projecting portion 15 Have.

The support 11 is fixed to the ground, and its height H (see FIG. 2) is set to, for example, 50 m.

The support portion 12 is configured to rotate around a vertical axis so that the impeller 13 is directed to the windward when receiving the wind.

In the present embodiment, the impeller 13 is formed in a propeller shape and includes three blades 13a arranged at equal angular intervals. When each of the blades 13a receives wind,
It rotates around the rotation axis O to rotate the drive shaft of the generator. As a result, the generator generates power by rotating the drive shaft. The rotation diameter D (see FIG. 2) of the tip of each blade 13a is set to, for example, 50.5 m.

As shown in FIG. 1, the scattering reflectors 14 are attached to, for example, both surfaces of the tip of each blade 13a, and when irradiated with light, diffusely reflect the light. In the present embodiment, all the blades 13a
Although the scattering reflector 14 is provided at the tip of the blade, in the present invention, the scattering reflector 14 may be provided at the tip of at least one blade 13a.

In the present embodiment, the light projecting section 15
Projectors 15a-1, 15a-2, 15a-3, 15
b-1, 15b-2, 15b-3, 15c-1, 15c
-1, 15c-3, and the first group of projectors 15a
-1, 15a-2 and 15a-3 irradiate the light beam 100 to the vicinity of the highest position of the blade 13a (position (strictly, position range A) in FIG. 2), and the second group of projectors 15b
-1, 15b-2, 15b-3 and the third group of projectors 15
c-1, 15c-2 and 15c-3 are the blades 14 respectively.
The light is directed toward the second and third arrival positions (positions (strictly speaking, position ranges) B and C in FIG. 2) which are shifted by a predetermined angle before and after the rotation with respect to the highest arrival position. It has become.

The positions B and C are arranged, for example, at a height of about 60 m from the ground, and are located at one end of the tip of the blade 13a in the horizontal direction (see FIG. 2). Is set to be the arrival position closest to the arrival position on the leftmost side (the leftmost position) and the arrival position closest to the arrival position on the other side (the rightmost side in FIG. 2). For this reason, when viewed from an aircraft in the sky, the general size and shape of the entire wind power generator can be grasped.

The projectors 15a-1, 15b-1, and
15c-1, a set of projectors 15a-2, 15b-2, 15
Set of c-2, floodlights 15a-3, 15b-3, 15c-
As shown in FIG. 3, the sets of 3 are arranged at a plurality of positions at substantially equal angular intervals with respect to the column 11 in the horizontal direction, and in the illustrated case, at three positions. In the present embodiment, the light projectors 15a-1 to 15c-3 are arranged near the ground so that their light source lamps can be easily replaced. However, in the present invention, the projectors 15a-1 to 15c-3 do not necessarily need to be arranged near the ground.

Further, as shown in FIG. 1, the light projecting section 15 is turned on when a driving voltage is supplied from a power supply 16 via a driving control circuit 17, and the light beam 100 of substantially parallel light is emitted. Is illuminated.

Here, the drive control circuit 17 controls the lighting of each of the light emitters 15a-1 to 15c-3 based on a detection signal from a rotation position detector 18 for detecting the rotation position of the impeller 13. Has become. Rotational position detector 18
Is configured to output a detection signal when the tip of each blade 13a is located at the positions A, B, and C described above.

According to the above-described wind power generator 10 according to the present embodiment, the impeller 13 rotates in response to the wind, so that the drive shaft of the generator linked to the central portion 13b of the impeller 13 is rotated. Power is generated.

In addition, the rotation of the impeller 13 causes the rotation position detector 18 to move the tip of each blade 13a to the position A, B, C.
, The corresponding detection signals are output. Then, the drive control circuit 17 responds to each of these detection signals, and applies the drive voltage from the power supply 16 to the first group of projectors 15a-1, 15a-2, 15a-3 and the second group of projectors 15b-. 1, 15b-2, 15b-3 or third
It supplies to the projectors 15c-1, 15c-2, and 15c-3 of a group.

Therefore, according to the present embodiment, each of the light projectors 15a, 15b, and 15c is configured such that when the tip of each blade 13a is located at each of the positions A, B, and C, these positions A, B , C are irradiated with a light beam 100.
As a result, the scattering reflector 14 provided at the tip of each blade 13a irregularly reflects the light from the light projectors 15a, 15b, 15c, and when observed from the outside, the tip of each blade 13a is positioned It will appear to be lit at A, B, C.

As described above, according to this embodiment, the scattering reflector 14 attached to the tip of each blade 13a can be used without attaching a conventional aviation obstacle light to the tip of each blade 13a. By irradiating the light from the light projecting unit 15, a light emitting portion equivalent to an aviation obstacle light can be provided.

Further, in this embodiment, the impeller 13a
The support portion 12 is supported by the support portion 1 so that
The three sets of floodlights are respectively disposed at three positions that are substantially equiangularly spaced with respect to the strut portion 11 in the horizontal direction even when rotated about a vertical axis with respect to 1. Thus, regardless of which direction the impeller 13 is oriented, the positions A, B,
C can be irradiated with light.

In this embodiment, three sets of light projectors are provided at equal angular intervals in the horizontal direction about the support 11, but the present invention is not limited to this. Two or four or more sets of light projectors arranged at equal angular intervals in the horizontal direction about the part 11 may be provided. Thereby, the visibility from all directions can be improved.

In the present embodiment, positions A, B, and C are detected as rotational positions of the blade
Group of projectors 15a-1, 15a-2, 15a-3, second
Group of projectors 15b-1, 15b-2, 15b-3, third
The light is radiated by the groups 15c-1, 15c-2, and 15c-3, but is not limited to this. By detecting only the position A and irradiating the light with the light projector 15a. Alternatively, the light may be reflected by the scattering reflector 14 only when the tip of the blade 13a is located at the position A. In this case, the projectors 15b, 15
c is omitted.

Further, in the present embodiment, the first group of light emitters 15a-a only when the blade 13a is located at the position A.
1, 15a-2 and 15a-3 are turned on, and the second group of projectors 15b-
1, 15b-2 and 15b-3 are turned on, and only when the blade 13a is located at the position C, the third group of projectors 15c-
Since the lights 1, 15c-2 and 15c-3 are turned on, the power consumption can be greatly reduced as compared with the case where the light projectors 15a-1 to 15c-3 are always turned on. However, in the present invention, the light projectors 15a-1 to 15c-3 may be constantly turned on.

(Second Embodiment) Next, a second embodiment of the present invention will be described.
The wind power generator according to the embodiment will be described with reference to FIGS.

FIG. 4 is a schematic side view showing a wind turbine generator according to the present embodiment. FIG. 5 is a partially enlarged cross-sectional view illustrating a main part of the wind turbine generator illustrated in FIG. 4.

The wind power generator 20 according to the present embodiment
As shown in FIG. 4 and FIG.
1, a support part 22 disposed on the upper part of the support part 21,
An impeller 23 rotatably supported about a rotation axis O substantially horizontal to the support portion 22, the impeller 23 having a plurality of blades 23 a concentrically and rotating by receiving wind; A generator (not shown) having a drive shaft (not shown) interlocked with the center portion 23b of the vehicle 23, a scattering reflector 24 attached to the tip of each blade 23a, and light projectors 25a and 25b
And

The support 21, support 22, and impeller 23
And the scattering reflector 24 is the wind power generator 10 shown in FIG.
, The support 11, the support 12, the impeller 13, and the scattering reflector 14 have the same configuration, and a description thereof will be omitted.

In this embodiment, the light projectors 25a and 25b
Is fixedly installed with respect to the support part 22, and the light projector 25a
Is arranged on one side (the right side in FIG. 4) of the direction of the rotation axis O of the impeller 23, and the light projector 25b is arranged on the other side (the left side in FIG. 4) of the direction of the rotation axis O. . More specifically, in the present embodiment, the projectors 25a and 25b serve as fixed shafts that are concentric with the hollow center portion 23b of the impeller 23, and the front ends of the support members 29 that extend back and forth from the support portion 22. And at the rear end. The center portion 23b of the impeller 23 is rotatably attached to the support member 29 via a bearing 23c, for example, as shown in FIG. Thereby, each light projector 25a,
25b always faces the impeller 23 even when the support portion 22 rotates around the vertical axis in response to wind.

Each of the light projectors 25a and 25b has a blade 2
The light beam 100 is applied to the vicinity of the highest position 3a.

Further, each of the light projectors 25a and 25b is turned on when a driving voltage is supplied from a power supply 26 via a driving control circuit 27, and the substantially parallel light beam 10 is turned on.
0 is radiated.

Here, the drive control circuit 27 controls the lighting of each of the projectors 25a and 25b based on a detection signal from a rotation position detector 28 for detecting the rotation position of the impeller 23. The rotation position detector 28 is configured to output a detection signal when the tip of each blade 23a is located near the highest position (corresponding to the position A in FIG. 2).

In the above-described wind turbine generator 20 according to the present embodiment, the impeller 23 is rotated by the wind, whereby the drive shaft of the generator linked to the central portion 23b of the impeller 23 is rotated. , Electricity is generated.

Further, due to the rotation of the impeller 23, the rotation position detector 28 outputs a detection signal when the tip of each blade 23a is located near the highest reaching position (corresponding to the position A in FIG. 2). I do. Then, in response to the detection signal, the drive control circuit 27 outputs a drive voltage from the power supply 26 to each of the projectors 2.
5a and 25b.

For this reason, according to the present embodiment, when each of the light emitters 25a and 25b is located near the highest reaching position, each of the projectors 25a and 25b moves forward and backward with respect to the vicinity of the highest reaching position. Irradiates light from Thus, the scattering reflectors 24 provided on the front and rear surfaces of the tip of each blade 23a diffusely reflect the light from each of the light projectors 25a and 25b, and when observed from the outside, the tip of each blade 23a Appears to be lit near the highest arrival position.

As described above, according to the present embodiment, the scattering reflector 24 attached to the tip of each blade 23a can be used without attaching a conventional large obstacle light to the tip of each blade 23a. By irradiating the light from the light projectors 25a and 25b, it is possible to provide a light-emitting portion equivalent to an aviation obstacle light.

Further, in the present embodiment, each light projector 25
a, 25b will rotate with the support 22 about a vertical axis. Therefore, even if the support part 22 rotates around the vertical axis so that the impeller 23 faces upwind,
Since each of the light projectors 25a and 25b always faces the impeller 23, it is possible to reliably irradiate the scattering reflector 24 at the tip of each of the blades 23a with light.

Further, in this embodiment, the light projector 25
Since a and 25b are arranged on both sides with respect to the impeller 23, the emission range of the scattered light by the scatterer 14 can be expanded. However, in the present invention, the light projectors 25a, 25
One of b may be removed. Further, in the present embodiment, one light projector 25a, 25b is arranged on each side with respect to the impeller 23. However, two or more light projectors are arranged on each side with respect to the impeller by further adding a light projector. May be. In this case, the emission range of the scattered light by the scatterer 14 can be further expanded.

In this embodiment, only when the tip of the blade 23a is located near the highest position, the light projector 2
5a and 25b are made to emit light, but the present invention is not limited to this. Similar to the case of the wind power generator 10 according to the first embodiment shown in FIGS. Even near the second and third arrival positions (positions B and C), which are shifted by a predetermined angle before and after rotation with respect to the position,
The rotation position of the impeller 23 is detected by the rotation position detector 28, and the light emitting device arranged corresponding to this position emits light, and the scattering reflector 2 attached to the tip of the blade 23a
4 may be configured to reflect light.

(Third Embodiment) Next, a third embodiment of the present invention will be described.
The wind power generator according to the embodiment will be described with reference to FIGS.

FIG. 6 is a schematic side view showing a wind turbine generator according to the present embodiment. FIG. 7 is a partially enlarged cross-sectional view illustrating a main part of the wind turbine generator illustrated in FIG. 6. FIG. 8 shows FIG.
FIG. 4 is a partially enlarged cross-sectional view showing the vicinity of the tip of a blade of the wind power generator shown in FIG.

The wind power generator 30 according to the present embodiment
As shown in FIG. 6 to FIG.
1, a support portion 32 disposed on the upper portion of the support portion 31,
An impeller 33 rotatably supported about a rotation axis O substantially horizontal to the support portion 32, the impeller 33 having a plurality of blades 33a concentrically and rotating by receiving wind; A generator (not shown) having a drive shaft (not shown) interlocked with a central portion 33b of the vehicle 33; an optical fiber 34 fixed to each blade 33a;
Light source 3 which constitutes a light incident part for making light incident on the incident end of light source 3
5a, a relay optical fiber 35b, and a condenser 35c such as a lens.

The support 31, support 32, impeller 33
Is a column 1 in the wind turbine generator 10 shown in FIG.
1, the support portion 12, and the impeller 13 have the same configuration, respectively, and the description thereof will be omitted.

Each of the optical fibers 34 is connected to each of the blades 33a.
, And rotates together with the blade 33a,
The light incident on the incident end is guided and emitted from the output end, and as shown in FIG.
Each optical fiber 34 is fixed to the blade 33a so as to be located at the tip of 3a. In the present embodiment, two optical fibers 34 are provided for all the blades 33a, but in the present invention, one optical fiber 34 may be provided for one blade 33a, or at least The optical fiber 34 may be provided for one blade 33a.

As shown in FIG. 7, the input end of the optical fiber 34 and one end of the relay optical fiber 35b are arranged such that their end faces face each other in the direction of the rotation axis O. That is, as shown in FIG. 7, the incident end of the optical fiber 34 is close to one end of the relay optical fiber 34 within the hollow fixed shaft 33d where the hollow central portion 33b of the impeller 33 is mounted via the bearing 33c. Facing each other. The hollow fixed shaft 33d is fixed to the support 32.

As shown in FIG. 6, the relay optical fiber 35b extends to near the ground through the support 31 and the other end is connected to a light collector 34c such as a lens.
It is configured to receive light from a light source 35a such as a lamp arranged near the ground.

Here, as shown in FIG. 6, the light source 35a is turned on when a driving voltage is supplied from a power source 36 via a driving control circuit 37.

The drive control circuit 37 controls lighting of the light source 35a based on a detection signal from a rotation position detector 38 for detecting the rotation position of the impeller 33.

According to the wind power generator 30 according to the present embodiment described above, the impeller 33 rotates in response to the wind, so that the drive shaft of the generator linked to the central portion 33b of the impeller 33 is rotated. Power is generated.

When the impeller 33 rotates, the rotation position detector 38 detects that the tip of each blade 33a is located, for example, near the highest position (corresponding to the position A in FIG. 2).
Outputs a detection signal. Then, the drive control circuit 37 supplies the drive voltage from the power supply 36 to the light source 35a in response to the detection signal.

For this reason, in the present embodiment, the light source 35a
Irradiates the other end of the relay optical fiber 35b with light via the light collector 35c when the tip of each blade 33a is located near the highest arrival position. This light is guided inside the relay optical fiber 35b and is guided by the relay optical fiber 3b.
5b from one end of the optical fiber 34 to the incident end of the optical fiber 34,
Further, the light is guided through the optical fiber 34 and radiated from the emission end of the optical fiber 34 provided at the tip of each blade 33a.
Appears to be lit near the highest reaching position.

As described above, according to the present embodiment, FIG.
As in the first embodiment shown in FIGS.
Without attaching a conventional aviation obstacle light to the tip of a
By emitting light from the emission end of the optical fiber 34 at the tip of each blade 33a, it is possible to provide a light emitting portion equivalent to an aircraft obstacle light.

In this embodiment, the light source 35a is
Since the light source 35a is arranged near the ground, when the light source 35a is out of order, operations such as replacement of the light source can be performed on the ground, thereby facilitating maintenance.

Further, in this embodiment, since the optical fiber 34 is fixed to each blade 33a, the impeller 3
Even if the support part 32 is rotated around the vertical axis so that 3 faces upwind, light can be reliably emitted from the tip of each blade 33a.

In this embodiment, only when the tip of the blade 33 is located near the highest position, the light source 35a
Is emitted, but the present invention is not limited to this. Similar to the case of the wind turbine generator 10 according to the first embodiment shown in FIGS. The rotation position of the impeller 33 is also detected by the rotation position detector 38 near the second and third arrival positions (positions B and C) which are shifted by a predetermined angle before and after the rotation.
5a emits light, and the optical fiber 3
4 may be irradiated with light from the emission end.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described.
The wind power generator according to the embodiment will be described with reference to FIGS. 9 and 10. FIG.

FIG. 9 is a schematic side view showing a wind turbine generator according to the present embodiment. FIG. 10 is a partially enlarged cross-sectional view illustrating a main part of the wind turbine generator illustrated in FIG. 9.

[0094] The wind power generator 40 according to the present embodiment includes:
As shown in FIG. 9 and FIG. 10, a support portion 41 erected on the ground and a support portion 42 disposed above the support portion 41.
And an impeller 43 rotatably supported about a rotation axis O substantially horizontal to the support portion 42, the impeller 43 having a plurality of blades 43a concentrically and rotating by receiving wind. , A drive shaft (not shown) interlocked with the central portion 43b of the impeller 43
(Not shown), an optical fiber 44 fixed to each of the blades 43a, and a light source 45 constituting a light incident portion for making light incident on an incident end of each optical fiber 44. .

The support portion 41, the support portion 42, the impeller 43
Is a column 1 in the wind turbine generator 10 shown in FIG.
1, the support portion 12, and the impeller 13 have the same configuration, and a description thereof will be omitted.

The optical fiber 44 has the same configuration as the optical fiber 34 in the wind turbine generator 30 according to the third embodiment shown in FIGS. 6 to 8, and the incident end of the optical fiber 44 is as shown in FIG. And the impeller 43
Are arranged in the hollow central portion 43b so as to face the direction of the rotation axis O.

That is, each optical fiber 44 is similar to the optical fiber 34 in the third embodiment, and each blade 4
3a, each of which is fixed with respect to 3a, rotates together with the blade 43a, guides light incident on the incident end thereof, and emits the light from the output end. The output end is positioned at the tip of the blade 43a. Each optical fiber 44 is fixed to the blade 43a, and the incident end of the optical fiber 44 is connected to the hollow center 43b of the impeller 43 as shown in FIG.
In the hollow fixed shaft 43d attached via 3c,
It faces the direction of the rotation axis O. The hollow fixed shaft 43d
Is fixed to the support portion 42.

On the other hand, a light source 45 such as a lamp is disposed on the rotation axis O in the hollow fixed shaft 43c, close to the incident end of the optical fiber 44 in the direction of the rotation axis O. ing. For this reason, in this embodiment, the relay optical fiber 35b used in the third embodiment is not provided. The light source 45 is
It is fixed to the support part 42 via a hollow fixed shaft 43d.

Here, as shown in FIG. 9, the light source 45 is turned on when a driving voltage is supplied from a power supply 46 via a driving control circuit 47.

The drive control circuit 47 controls the lighting of the light source 45 based on a detection signal from a rotation position detector 48 for detecting the rotation position of the impeller 43.

According to the wind power generator 40 according to the present embodiment described above, the impeller 43 rotates in response to the wind, so that the drive shaft of the generator linked to the central portion 43b of the impeller 43 is rotated. Power is generated.

Further, due to the rotation of the impeller 43, the rotation position detector 48 outputs a detection signal when the tip of each blade 43 is located, for example, near the highest position (corresponding to the position A in FIG. 2). Output. Then, in response to the detection signal, the drive control circuit 47 supplies the drive voltage from the power supply 46 to the light source 4.
Supply to 5

For this reason, according to the present embodiment, the light source 4
Numeral 5 irradiates the incident end of the optical fiber 44 with light when the tip of each blade 43a is located near the highest reaching position. This light is guided in the optical fiber 44,
The light is emitted from the output end of the optical fiber 44 provided at the tip of each blade 43a, and when viewed from the outside, the tip of each blade 43a appears to be lit near the highest reaching position. .

As described above, according to the present embodiment, the optical fiber 44 is provided at the tip of each blade 43a without attaching a conventional aircraft obstacle light to the tip of each blade 43a.
By emitting light from the exit end of the light emitting device, it is possible to provide a light emitting portion equivalent to an aircraft obstacle light.

Further, in the present embodiment, since the light source 45 is disposed close to the incident end of the optical fiber 44, the need for the relay fiber 44 increases the light transmission efficiency. Small ones can be used.

In this embodiment, only when the tip of the blade 43a is located near the highest position, the light source 45
Is emitted, but the present invention is not limited to this. Similar to the case of the wind turbine generator 10 according to the first embodiment shown in FIGS. In the vicinity of the second and third arrival positions (positions B and C) which are shifted by a predetermined angle before and after rotation, the rotation position of the impeller 43 is detected by the rotation position detector 48 and the light source 4
5 emit light, and an optical fiber 44
Light may be emitted from the emission end.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described.
The wind power generator according to the embodiment will be described with reference to FIGS.

FIG. 11 is a schematic side view showing a wind turbine generator according to the present embodiment. FIG. 12 is a schematic front view showing the wind turbine generator shown in FIG. FIG.
FIG. 4 is a partially enlarged cross-sectional view showing the vicinity of the tip of a blade of the wind power generator shown in FIG. FIG. 14 is a schematic plan view showing an aviation obstruction light device according to one embodiment of the present invention used in the wind turbine generator shown in FIG. FIG. 15 is a schematic sectional view showing the aircraft obstacle light device shown in FIG. FIG.
FIG. 2 is a block diagram showing an electrical configuration of the aircraft obstacle light device shown in FIG.

The wind power generator 50 according to the present embodiment is
As shown in FIG. 11 to FIG. 16, a support portion 51 erected on the ground and a support portion 52 disposed on the upper portion of the support portion 51.
And an impeller 53 rotatably supported about a rotation axis O substantially horizontal to the support portion 52, the impeller 53 having a plurality of blades 53a concentrically and rotating by receiving wind. , A drive shaft (not shown) interlocked with the central portion 53b of the impeller 53
And a aviation obstacle light device 54 attached to the tip of each blade 53a.

The support 51, the support 52 and the impeller 5
3 has the same configuration as the strut portion 11, the support portion 12, and the impeller 13 in the wind turbine generator 10 shown in FIG. 1, and a description thereof will be omitted.

As shown in FIG. 13, the aviation obstruction light device 54 is attached to both front and rear surfaces (of course, one surface or a peripheral surface) at the tip of each blade 53a. In the present embodiment, the aviation obstruction light device 54 is provided at the tip of all the blades 53a, but in the present invention,
The aviation obstruction light device 54 may be provided at the tip of at least one blade 53a.

The aviation obstruction light device 54 is configured as shown in FIG.
4 and FIG. 15, a solar cell 54a, a power storage unit 54b for storing power generated by the solar cell 54a,
A light emitting device 54c, a posture detector 54d for detecting the posture of the aircraft obstacle light device 54, and a drive control circuit 54e for driving and controlling the light emitter 54c based on a detection signal from the posture detector 54d. I have.

The power storage unit 54b stores power from the solar cell 54a, and uses, for example, a rechargeable battery or a capacitor. In recent years, a thin large-capacity capacitor has been put to practical use, and it is preferable to use this as the power storage unit 54b.

As the light emitting device 54c, it is preferable to use, for example, one composed of at least one light emitting diode (LED) in order to reduce power consumption. In the illustrated example, the light emitting device 54c is configured by arranging a plurality of light emitting diodes.

The attitude detector 54d detects the attitude of the aviation obstacle light device 54, that is, the attitude of the aviation obstacle light device 54 accompanying the rotation of the blade 53a. Outputs a detection signal when is located near the highest arrival position. For example, a commercially available magnetic sensor that measures the azimuth with weak geomagnetism can be used.

The light emitting device 54c, the attitude detector 54d, and the drive control circuit 54e include a solar cell 54a or a power storage unit 54.
It is powered by b and operates.

In the wind power generator 20 according to the present embodiment described above, the impeller 53 rotates in response to the wind, whereby the drive shaft of the generator linked to the rotating shaft 53a of the blade 53 is rotated. Power generation is performed.

Further, the rotation of the impeller 53 causes the attitude detector 54d of the aviation obstacle light device 54 to output a detection signal when the tip of each blade 53a is located, for example, near the highest position. Then, the drive control circuit 54e supplies the drive voltage from the power storage unit 54b to the light emitter 54c in response to the detection signal.

Therefore, according to the present embodiment, the light emitter 54c of the aviation obstruction light device 54 is illuminated when the tip of each blade 53a is located near the highest reaching position. When observed, the tip of each blade 53a appears to light up near the highest position.

As described above, according to the present embodiment, the light emitter 54c of the aircraft obstacle light device 54 emits light at the tip of each blade 53a without attaching the conventional aircraft obstacle light to the tip of each blade 53a. By doing so, it is possible to provide a light emitting portion equivalent to a conventional aviation obstacle light.

Further, in the present embodiment, the aviation obstacle light device 54 includes a solar cell 54a and a power storage unit 54b as power sources.
Is used as a single unit by using the attitude detector 54d as a rotational position detector of the blade 53a.
It can be easily used as an aviation obstruction light simply by attaching it to the tip of 3a.

In the present embodiment, the light emitter 54c of the aviation obstruction light device 54 emits light only when the tip of the blade 53a is located near the highest reaching position, but the invention is not limited to this. However, as in the case of the wind power generator 10 according to the first embodiment shown in FIGS. 1 to 3, the second and the second blades are shifted by a predetermined angle before and after rotation with respect to the highest position of the blade. The rotation position of the impeller 53 may be detected by the attitude detector 54d also near the arrival position of the position 3 (positions B and C), and the light emitter 54c may emit light.

(Sixth Embodiment) Next, the sixth embodiment of the present invention will be described.
The wind power generator according to the embodiment will be described with reference to FIG.

FIG. 17 is a schematic side view showing a main part of the wind turbine generator according to the present embodiment. 17, elements that are the same as or correspond to elements in FIGS. 1 to 3 are given the same reference numerals, and redundant descriptions thereof will be omitted.

The difference between the wind power generator 60 according to the present embodiment and the wind power generator 10 according to the first embodiment shown in FIG. 1 to FIG.
The only difference is that the aviation obstacle light 61 of the conventional type is arranged. In the present embodiment, the aviation obstruction light 61 is fixed to the support 12, but may be fixed to the support 11 as appropriate.

According to the wind power generator 60 according to the present embodiment, the wind power generator 1 according to the first embodiment described above.
In addition to providing the same advantages as those described above, the aviation obstruction light 61 is disposed near the upper portion of the column 11 and is also used in combination with the aviation obstruction light 61. Even when the size of the reflector 14 cannot be sufficiently secured and the luminous intensity of the scattering reflector 14 is not always sufficient, it is preferable because the aviation obstacle lamp 61 using the lamp can supplement the luminous intensity.

It is needless to say that also in the second to fifth embodiments described above, an aviation obstruction light using a lamp may be arranged near the upper part of the column. Even in this case, the same advantages as in the present embodiment can be obtained.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments.

For example, according to the present invention, in each of the above-described embodiments, the light emitting device, the light source, and the light emitting device are such that the tips of the blades are located near the highest reaching position, more preferably near the second and third reaching positions. Sometimes, lighting control is performed so as to emit or light, but is not limited to this,
You may make it always emit light or always light. In this case, a rotational position detector, a posture detector, and the like are not required, and a drive control circuit is not required.

In each of the above embodiments,
The front and rear surfaces of the tip of the impeller are provided with scattering reflectors, the exit end of an optical fiber, and an aircraft obstruction light device, but are not limited to this, and only the front or rear surface of the tip of the blade is provided. In addition, a scattering reflector, one end of an optical fiber, and an aviation obstacle light device may be provided.

[0131]

As described above, according to the wind power generator and the aviation obstruction light device of the present invention, instead of the conventional large aviation obstruction light, a light emitting portion equivalent to the aviation obstruction light is provided. It can be provided nearby.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a wind turbine generator according to a first embodiment of the present invention.

FIG. 2 is a schematic front view showing the wind turbine generator shown in FIG.

FIG. 3 is a schematic plan view showing the wind power generator shown in FIG.

FIG. 4 is a schematic side view showing a wind turbine generator according to a second embodiment of the present invention.

FIG. 5 is a partially enlarged cross-sectional view showing a main part of the wind turbine generator of FIG.

FIG. 6 is a schematic side view showing a wind turbine generator according to a third embodiment of the present invention.

7 is a partially enlarged cross-sectional view illustrating a main part of the wind power generator illustrated in FIG.

8 is a partially enlarged cross-sectional view showing the vicinity of the tip of a blade of the wind power generator shown in FIG.

FIG. 9 is a schematic side view showing a wind turbine generator according to a fourth embodiment of the present invention.

FIG. 10 is a partially enlarged cross-sectional view illustrating a main part of the wind turbine generator illustrated in FIG. 9;

FIG. 11 is a schematic side view showing a wind turbine generator according to a fifth embodiment of the present invention.

FIG. 12 is a schematic front view showing the wind turbine generator shown in FIG.

13 is a partially enlarged front view showing the vicinity of the tip of the blade of the wind power generator shown in FIG.

FIG. 14 is a schematic plan view showing an aviation obstruction light device according to an embodiment of the present invention used in the wind turbine generator shown in FIG.

FIG. 15 is a schematic sectional view showing the aircraft obstacle light device shown in FIG.

FIG. 16 is a block diagram showing an electrical configuration of the aircraft obstacle light device shown in FIG.

FIG. 17 is a schematic side view showing a main part of a wind turbine generator according to a sixth embodiment of the present invention.

[Explanation of symbols]

 10, 20, 30, 40, 50, 60 Wind power generators 11, 21, 31, 41, 51 Supports 12, 22, 32, 42, 52 Supports 13, 23, 33, 43, 53 Impellers 13a, 23a , 33a, 43a, 53a Blade 14, 24 Scattering reflectors 15a-1 to 15c-3, 25a, 25b Projector 16, 26, 36, 46 Power supply 17, 27, 37, 47 Drive control circuit 18, 28, 38, 48 Rotational position detector 29 Supporting members 34, 44 Optical fibers 35a, 45 Light source 35b Relay optical fiber 54 Aviation obstacle light device 54a Solar cell 54b Power storage unit 54c Light emitter 54d Attitude detector 54e Drive control circuit 61 Lamp for aircraft obstacle light

Claims (16)

[Claims] 1. A support portion erected on the ground, a support portion disposed above the support portion, and an impeller rotatably supported about a rotation axis substantially horizontal to the support portion. And
An impeller having a plurality of blades concentrically and rotating by receiving wind, and a wind power generator having a generator having a drive shaft interlocked with the center of the impeller, wherein at least one of the plurality of blades A wind power generator, comprising: a scattering reflector provided at a tip of one blade; and a light projecting unit for irradiating a light beam to a position near a maximum arrival position of the tip of each blade. . 2. A second position which is shifted by a predetermined angle before and after rotation of the tip with respect to the highest position of the tip of each blade.
The wind power generator according to claim 1, further comprising second and third light projecting means for irradiating a light beam toward the vicinity of the first and third arrival positions, respectively. 3. The wind power generator according to claim 1, wherein each of the light projecting means is arranged near the ground. 4. The support portion is rotatably supported about a vertical axis with respect to the support portion, and each of the light projecting means has a direction substantially equiangularly spaced from the support portion with respect to a horizontal direction. 2. A plurality of light emitters respectively arranged at a plurality of positions to be formed.
4. The wind power generator according to any one of claims 3 to 3. 5. The light emitting device according to claim 1, wherein each of the light projecting means is fixed to the supporting portion.
A wind power generator as described. 6. The projector according to claim 1, wherein each of the light projecting means is fixed to the support portion and arranged on one side of the rotating shaft with respect to the impeller, and the blade is fixed to the support portion. The wind power generator according to claim 5, further comprising: a light projector disposed on the other side in the direction of the rotation axis with respect to a vehicle. 7. A rotating position detecting means for detecting a rotating position of the impeller; and a tip of the blade provided with the scattering reflector at a tip based on a detection signal from the rotating position detecting means. Only when is located near the highest reaching position, or only when the tip of the blade is located near the highest reaching position and the second and third reaching positions. The wind power generator according to any one of claims 1 to 6, further comprising drive control means for driving each of the light emitting means so that the light emitting means corresponding to (i) emits a light beam. 8. A support portion erected on the ground, a support portion disposed above the support portion, and an impeller rotatably supported about a rotation axis substantially horizontal to the support portion. And
In a wind turbine generator having an impeller having a plurality of blades concentrically and rotating by receiving wind, and a generator having a drive shaft interlocked with the center of the impeller, the light incident from the incident end is An optical fiber that guides and emits light from the emission end, an optical fiber fixed to the blade such that the emission end is located at the tip of at least one of the plurality of blades, A wind power generator, comprising: a light incident means for making light incident on an incident end, the light incident means having a light source for emitting light incident on the incident end of the optical fiber. 9. The light source is fixedly installed on the supporting portion so as to be located on a rotation axis of the impeller, and an incident end of the optical fiber is arranged close to the light source. The wind power generator according to claim 8, wherein: 10. The wind power according to claim 8, wherein the light source is disposed near the ground, and the light incident means has a relay optical fiber for guiding light emitted from the light source to an incident end of the optical fiber. Power generator. 11. A rotational position detecting means for detecting a rotational position of the impeller; and a tip of the blade to which the optical fiber is fixed is positioned near a maximum reaching position based on a detection signal from the rotational position detecting means. The second and third arrival positions only when the blades are located, or where the tip of the blade is shifted by a predetermined angle before and after rotation of the tip with respect to the vicinity of the highest arrival position and the highest arrival position. 2. A drive control means for driving the light source so that the light source is turned on only when the light source is located in the vicinity.
0. The wind power generator according to any one of 0. 12. An aviation obstruction light device for a wind power generator provided at a tip of a blade of an impeller of a wind power generator, comprising: a solar cell; and a power storage means for storing power generated by the solar cell. Attitude detection means for detecting the attitude of the aircraft obstacle light, a light emitter, and drive control means for driving and controlling the light emitter based on a detection signal from the attitude detection means, comprising: The aviation obstacle light device for a wind power generator, wherein the light emitting device and the drive control means are operated by being supplied with power from the power storage means. 13. The aviation obstruction light device for a wind power generator according to claim 12, wherein the light emitter comprises at least one light emitting diode. 14. An upright supporting portion provided on the ground, a supporting portion disposed above the supporting portion, and an impeller rotatably supported about a rotation axis substantially horizontal to the supporting portion. A wind power generator comprising: an impeller having a plurality of blades concentrically and rotating by receiving wind, and a generator having a drive shaft interlocked with a center portion of the impeller, wherein the plurality of blades A wind power generator, wherein the aviation obstacle light device for a wind power generator according to claim 12 or 13 is provided at a tip of at least one of the blades. 15. The drive control means of the aviation obstruction light device for a wind power generator, wherein the tip of the blade provided with the aviation obstruction light device for the wind power generation device is located near the highest reaching position. Or the tip of the blade is shifted by a predetermined angle before and after rotation of the tip with respect to the vicinity of the highest reaching position and the highest reaching position.
The light emitting device is driven so that the light emitting device of the aviation obstacle light device for the wind power generator is turned on only when the light emitting device is located near the arrival position of the wind power generation device.
A wind power generator as described. 16. The wind power generator according to claim 1, further comprising an aviation obstruction light formed by a lamp disposed near an upper portion of the support portion.