JP2011149413A - Wind turbine generator system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low-cost wind turbine generator system capable of generating electric power even with slight wind and besides enduring high wind without requiring expensive materials and complicated parts. <P>SOLUTION: The wind turbine generator system 1 includes a rotating shaft 40 horizontally extending, a wind receiving section 50 fixed to the rotating shaft 40, a support block 30 for supporting the rotating shaft 40 so that the rotating shaft 40 can rotate by wind force hitting against the wind receiving section 50, a support shaft 20 for supporting the support block 30 so that the support block 30 is capable of turning within a horizontal plane together with the rotating shaft 40 by the wind force hitting against the wind receiving section 50, a wind-pressure variation accepting generator 60 with a driving shaft 62, a ratchet wheel mechanism 80 for transmitting the counterclockwise rotating motion of the rotating shaft 40 to the driving shaft 62 of the wind-pressure variation accepting generator 60, a wind-direction variation accepting generator 70 with a driving shaft 72, and a ratchet wheel mechanism 90 for transmitting the clockwise rotating motion of the support block 30 to the driving shaft 72 of the wind-direction variation accepting generator 70. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wind power generator that generates power using the force of natural wind.

  In recent years, awareness of environmental protection has increased, and power generation devices using natural power have attracted attention. One such clean energy is wind power. In a conventional wind power generator, a rotating shaft of a propeller is attached to a generator directly or via a gear, and the propeller is rotated by wind force to drive the generator, thereby converting wind power into electric energy.

  However, enormous costs are required to construct a conventional wind power generator. Natural wind needs to be a wind power generator with a structure that can withstand extremely strong winds such as typhoons because of its wide range of wind power fluctuations. Therefore, a sturdy propeller is required, and a support shaft that supports such a propeller must also be robust. For this reason, an expensive material is required, and the cost for constructing the wind power generator becomes very high. For example, the cost for constructing a small wind power generator of 500 kW or less is about 300,000 yen / kW to about 650,000 yen / kW, and the cost for constructing a large wind power generator of 20000 kW or more is about 200,000 yen. / KW.

  Moreover, in such a conventional wind power generator, the construction cost becomes high, and thus the power generation cost becomes high. The power generation cost of coal-fired power generation is about 5 yen / kWh, whereas the power generation cost of wind power generation is about 20 yen / kWh, which is four times as high. Such high power generation cost is a factor that hinders the spread of wind power generation.

  Furthermore, the conventional wind power generator cannot generate power with a breeze. As described above, in the conventional wind power generator, since the propeller requires strength, a heavy material having high strength is used as the propeller material. For this reason, the propeller becomes heavier, and the propeller cannot be rotated by a breeze and power generation cannot be performed. Therefore, the conventional wind power generator cannot be installed in a place where the wind speed is low.

  Further, a conventional wind power generator using a propeller has a propeller that is several tens of meters in length, but this propeller cannot be disassembled, and thus has a problem that it is difficult to carry. Furthermore, noise is also generated by the rotation of a huge propeller. Furthermore, wild birds and other animals can collide with a propeller and be killed or injured.

  In recent years, a wind turbine generator that directly converts wind power into electrical energy using a piezoelectric element has been proposed instead of the wind turbine generator using the propeller described above (see, for example, Patent Document 1). However, since the current piezoelectric elements have low power generation efficiency, it is difficult to construct a practical wind power generator using these piezoelectric elements.

International Publication WO2006 / 043600 Pamphlet

  The present invention has been made in view of the problems of the prior art, and can generate power even in a breeze and can withstand strong winds without requiring expensive materials or complicated parts. An object is to provide a simple wind power generator.

  According to one embodiment of the present invention, it is possible to provide an inexpensive wind power generator that can generate power even in a light wind and can withstand strong winds without requiring expensive materials or complicated parts. The wind power generator includes a rotation shaft extending in a horizontal direction, a wind receiving portion fixed to the rotation shaft, and a support that supports the rotation shaft so that the rotation shaft can be rotated by a wind force that strikes the wind receiving portion. A first wind pressure fluctuation generator having a drive shaft, a support shaft that supports the support portion so that the support portion can swivel in a horizontal plane together with the rotation shaft by a wind force that strikes the wind receiving portion, A first rotation transmission mechanism configured to transmit rotation of the rotation shaft in the first rotation direction to the drive shaft of the first wind pressure fluctuation generator;

  According to the present invention, the rotating shaft is rotated via the wind receiving portion due to the fluctuation of the wind pressure, and the first wind pressure fluctuation generator is driven by the rotation of the rotating shaft to generate electric power. As described above, the wind power generator according to the present invention does not use the strength of the wind but uses the fluctuation of the wind pressure. it can. Therefore, the wind power generator can be installed even in a place where the wind speed is low.

  In the case of strong winds, the area of the wind receiving portion that is exposed to the wind is automatically reduced by blowing up the wind receiving portion, so that a large force is not applied to the rotating shaft. Therefore, expensive materials and complicated parts are not required. As a result, construction costs and power generation costs can be significantly reduced.

  Furthermore, according to the present invention, a rotating blade such as a propeller is not required, so there is no problem in transportation and no loud noise is generated. In addition, there is no impact on the natural environment without wild birds colliding and being injured.

  Here, the center of gravity of the wind receiving portion is at a position different from the center of the support shaft in a horizontal plane, and the wind receiving portion is symmetrical with respect to a line connecting the center of the support shaft and the center of gravity of the wind receiving portion. It is preferable that it is comprised so that. With such a configuration, it is possible to automatically face the wind receiving portion in the direction in which the wind blows.

  The wind turbine generator may further include a transmission ratio control mechanism that changes the transmission ratio according to the rotation angle of the rotation shaft and transmits the rotation of the rotation shaft to the first rotation transmission mechanism. preferable. In this way, by changing the transmission ratio of the first wind pressure fluctuation generator to the drive shaft in accordance with the rotation angle of the rotary shaft, the rotational torque applied to the drive shaft and the rotational speed thereof can be optimally controlled. .

  Here, the transmission ratio control mechanism can be constituted by a plurality of sector gears having different radii. The first rotation transmission mechanism can be constituted by a plurality of rotation transmission units provided corresponding to the plurality of sector gears of the transmission ratio control mechanism. The plurality of rotation transmission units are engaged with the corresponding sector gears to transmit the rotation of the rotation shaft in the first rotation direction to the drive shaft of the first wind pressure fluctuation generator.

  Of the plurality of sector gears, the sector gear having a small radius is preferably configured to engage with the corresponding rotation transmission portion when the rotation angle of the rotation shaft is small. Moreover, it is preferable that a sector gear with a large radius among the plurality of sector gears is configured to engage with the corresponding rotation transmission portion when the rotation angle of the rotation shaft is large.

  The wind power generator includes a second wind pressure fluctuation generator having a drive shaft, and a second wind pressure fluctuation generator that transmits rotation of the rotation shaft in the second rotation direction to the drive shaft of the second wind pressure fluctuation generator. 2 rotation transmission mechanisms may be further provided. With such a configuration, rotation in both the first rotation direction and the second rotation direction of the rotation shaft can be used for power generation, so that power generation efficiency is improved.

  Further, the wind power generator engages with the first rotation transmission mechanism in the operating region of the first rotation transmission mechanism, thereby rotating the rotation shaft in the first rotation direction. And transmitting the rotation of the rotation shaft in the second rotation direction to the first rotation transmission mechanism by engaging with the second rotation transmission mechanism in the operating region of the second rotation transmission mechanism. A transmission mechanism may be provided. The intermediate transmission mechanism is located outside the operating region of the second rotation transmission mechanism in a state where the rotation shaft rotates in the first rotation direction from the initial position, and a part thereof is the first transmission mechanism. Located in the operating area of the rotation transmission mechanism. The intermediate transmission mechanism is located outside the operating region of the first rotation transmission mechanism in a state where the rotation shaft rotates in the second rotation direction from the initial position, and a part thereof is the first 2 is located in the operating region of the rotation transmission mechanism. The intermediate transmission mechanism can be constituted by a semicircular gear centered on the rotating shaft. With such an intermediate transmission mechanism, even if the wind receiving portion is light, the wind receiving portion blown up by the wind can be returned to the initial position by its own weight.

  Further, the wind power generator replaces the second wind pressure fluctuation generator and reverses the rotation of the rotation shaft in the second rotation direction and transmits the rotation to the drive shaft of the first wind pressure fluctuation generator. A third rotation transmission mechanism may be further provided. In this case, it is possible to generate power using the rotation in both directions of the rotating shaft with one wind pressure fluctuation generator.

  Further, the wind power generator includes a first wind direction variation generator having a drive shaft, and a first rotation direction of the rotation of the support portion transmitted to the drive shaft of the first wind direction variation generator. 1 turning transmission mechanism may be further provided. With such a configuration, it is possible to generate power using fluctuations in wind direction.

  The wind power generator includes a second wind direction fluctuation generator having a drive shaft and a second turn direction of the turning of the support portion that is transmitted to the drive shaft of the second wind direction fluctuation generator. Two turning transmission mechanisms may be further provided. With such a configuration, both the first turning direction and the second turning direction of the support portion can be used for power generation, so that power generation efficiency is improved.

  Moreover, it replaces with the said 2nd wind direction fluctuation | variation generator, 3rd turning transmission which reverses the turning of a 2nd turning direction among the turnings of the said support part, and transmits to the drive shaft of a said 1st wind direction fluctuation | variation generator. A mechanism may be provided. In this case, it is possible to generate electric power by utilizing the rotation in both directions of the support portion with one wind direction fluctuation generator.

  The wind receiving portion may include a canvas for receiving wind, a frame attached to the rotating shaft, and a plurality of connecting portions for connecting the canvas to the frame. In this case, it is preferable that the plurality of connecting portions are configured to separate the canvas from the frame when a force larger than a predetermined magnitude is applied. By adopting such a configuration, for example, when a strong gust of wind blows instantaneously, the canvas is separated from the frame, so that the entire wind power generator can be prevented from being destroyed by the gust of wind. .

  According to the present invention, since power generation is performed using fluctuations in wind pressure, power can be generated even with a light wind. Therefore, it is possible to install a wind power generator in a place where the wind speed is low. Moreover, since it has a structure that can withstand strong winds without requiring expensive materials or complicated parts, the construction cost and power generation cost of the wind turbine generator can be greatly reduced.

It is a perspective view which shows the wind power generator in the 1st Embodiment of this invention. It is a figure explaining the relationship between the wind receiving part and wind pressure (weak wind) in the wind power generator of FIG. It is a figure explaining the relationship between the wind receiving part and wind pressure (medium wind) in the wind power generator of FIG. It is a figure explaining the relationship between the wind receiving part and wind pressure (strong wind) in the wind power generator of FIG. It is a figure explaining the relationship between the wind receiving part and wind direction in the wind power generator of FIG. It is a figure explaining the relationship between the wind receiving part and wind direction in the wind power generator of FIG. It is a perspective view which shows the modification of the wind power generator in the 1st Embodiment of this invention. It is a perspective view which shows the wind power generator in the 2nd Embodiment of this invention. It is a perspective view which shows the wind power generator in the 3rd Embodiment of this invention. It is a figure explaining operation | movement of the semicircle gearwheel in the wind power generator of FIG. It is a figure explaining operation | movement of the semicircle gearwheel in the wind power generator of FIG. It is a figure explaining operation | movement of the semicircle gearwheel in the wind power generator of FIG. It is a figure explaining operation | movement of the semicircle gearwheel in the wind power generator of FIG. It is a figure explaining operation | movement of the semicircle gearwheel in the wind power generator of FIG. It is a side view which shows a part of wind power generator in the 4th Embodiment of this invention. It is a top view of FIG. It is a figure for demonstrating operation | movement of the wind power generator shown in FIG. It is a figure for demonstrating operation | movement of the wind power generator shown in FIG. It is a perspective view which shows the wind power generator in the 5th Embodiment of this invention.

  Hereinafter, embodiments of a wind turbine generator according to the present invention will be described in detail with reference to FIGS. 1 to 12. Generally, the wind power generator according to the present invention is a novel wind power generator that uses fluctuations in the strength (wind pressure) and wind direction of natural wind, unlike conventional wind power generators that directly use natural wind power. is there. In FIG. 1 to FIG. 12, the same or corresponding components are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a perspective view showing a wind turbine generator 1 according to the first embodiment of the present invention. As shown in FIG. 1, the wind turbine generator 1 according to the present embodiment is installed on a base 10 installed on the ground 2, a hollow support shaft 20 extending in a substantially vertical direction from the base 10, and an upper portion of the support shaft 20. The support block 30, the rotary shaft 40 extending through the support block 30 in a substantially horizontal direction, and two wind receiving portions 50 fixed below the rotary shaft 40 are provided.

  A bearing (not shown) is provided in the support block 30, and the rotating shaft 40 is held by the support block 30 via this bearing. Thereby, the rotating shaft 40 can be rotated in the support block 30. For this reason, when wind strikes the wind receiving portion 50 fixed to the rotating shaft 40 and a force is applied to the wind receiving portion 50, the rotating shaft 40 rotates in the support block 30. Thus, the support block 30 in the present embodiment functions as a support portion that holds the rotation shaft 40 so that the rotation shaft 40 can be rotated by the force of the wind that strikes the wind receiving portion 50.

  Further, another bearing (not shown) is provided in the support block 30, and the support block 30 is supported by the support shaft 20 via this bearing. Thereby, the support block 30 can turn in a horizontal plane around the support shaft 20. For this reason, when the direction of the wind striking the wind receiving portion 50 changes, torque around the support shaft 20 is generated in the support block 30, and the support block 30 turns around the support shaft 20 together with the rotating shaft 40. . As the support block 30 turns, the support shaft 20 rotates relative to the support block 30.

  As shown in FIG. 1, the wind turbine generator 1 according to the present embodiment includes two generators 60 and 70 installed on a support block 30. The generator 60 is a wind pressure fluctuation generator that generates power by using fluctuations in wind pressure, and the generator 70 is a wind direction fluctuation generator that generates power by using fluctuations in wind direction. Lead wires (not shown) extending from the two generators 60 and 70 pass through the hollow portion of the support shaft 20 to the outside via a coupler (not shown) provided inside the support shaft 20. Connected.

  The wind pressure fluctuation generator 60 has a drive shaft 62 extending in parallel with the rotation shaft 40, and a claw wheel mechanism 80 is attached to the drive shaft 62. The rotary shaft 40 is provided with a gear 42 corresponding to the ratchet mechanism 80. The rotary shaft 40 is connected to a drive shaft 62 of the wind pressure fluctuation generator 60 via a gear 42 and a claw wheel mechanism 80.

  The ratchet mechanism 80 meshes with the gear 42 to transmit the rotation of the rotation shaft 40 to the drive shaft 62 for rotation in one direction (first rotation direction) of the rotation of the rotation shaft 40. With respect to rotation in the direction (second rotation direction), the gear 42 is idled so that the rotation of the rotation shaft 40 is not transmitted to the drive shaft 62 (separated from the drive shaft 62). In the present embodiment, the ratchet mechanism 80 transmits the counterclockwise rotation of the rotation shaft 40 (indicated by an arrow A1 in FIG. 1) to the drive shaft 62, and the rotation of the rotation shaft 40 in the clockwise direction (in FIG. 1). (Indicated by an arrow A2) is not transmitted to the drive shaft 62. Such a structure of the ratchet wheel mechanism 80 is substantially the same as, for example, a ratchet gear used for a rear wheel of a bicycle. As described above, the ratchet mechanism 80 transmits the rotation in the first rotation direction (counterclockwise) of the rotation of the rotation shaft 40 to the drive shaft 62 of the wind pressure fluctuation generator 60 (first rotation transmission). Function as a mechanism).

  As shown in FIG. 1, the wind direction fluctuation generator 70 has a drive shaft 72 extending in parallel with the support shaft 20, and a claw mechanism 90 is attached to the drive shaft 72. The support shaft 20 is provided with a gear 22 corresponding to the ratchet mechanism 90. As described above, the support shaft 20 is connected to the drive shaft 72 of the wind direction fluctuation generator 70 via the gear 22 and the claw wheel mechanism 90.

  The claw wheel mechanism 90 meshes with the gear 22 and turns relative to the support shaft 20 for turning in one direction (first turning direction) of the turning of the support block 30, similarly to the above-described claw wheel mechanism 80. Is transmitted to the drive shaft 72, but the rotation of the gear 22 is not rotated and the relative rotation of the support shaft 20 is not transmitted to the drive shaft 72 (drive shaft 72) in the other direction (second turning direction). Configured to separate from). The ratchet mechanism 90 in this embodiment transmits the relative rotation of the support shaft 20 caused by the clockwise rotation of the support block 30 (indicated by the arrow B1 in FIG. 1) to the drive shaft 72, and the support block 30 rotates counterclockwise. The relative rotation of the support shaft 20 caused by the turning (indicated by the arrow B2 in FIG. 1) is not transmitted to the drive shaft 72. Such a structure of the ratchet wheel mechanism 90 is substantially the same as a ratchet gear used for a rear wheel of a bicycle, for example. In this way, the claw wheel mechanism 90 turns the support block 30 in the first turning direction (clockwise) (counterclockwise relative rotation of the support shaft 20) to the drive shaft 72 of the wind direction fluctuation generator 70. It functions as a turning transmission mechanism for transmitting (first turning transmission mechanism).

  As shown in FIG. 1, the wind receiving portion 50 is provided symmetrically about the support shaft 20. Each wind receiving portion 50 includes a canvas 52 that receives wind, a frame 54 that is fixed below the rotation shaft 40, and four connecting portions 56 that connect the four corners of the canvas 52 to the frame 54. The frame 54 is made of a lightweight metal such as aluminum.

  In the wind power generator 1 having such a configuration, when the wind pressure of the wind hitting the canvas 52 of the wind receiving portion 50 fluctuates, the wind receiving portion 50 swings back and forth around the rotation shaft 40, and the rotation shaft 40 rotates clockwise accordingly. Repeatedly rotate counterclockwise. Then, only the counterclockwise rotation of the rotary shaft 40 among the repetitive rotary motions of the rotary shaft 40 is transmitted to the drive shaft 62 of the wind pressure fluctuation generator 60 by the above-described pinion mechanism 80, and the wind pressure fluctuation generator 60 is Driven to generate electricity.

  Further, when the direction of the wind hitting the canvas 52 of the wind receiving portion 50 fluctuates, torque around the support shaft 20 is generated in the support block 30 by the force of the wind hitting the canvas 52, and the rotating shaft 40 and the support block 30 are integrated with each other. And pivots clockwise or counterclockwise in the horizontal plane about the support shaft 20. The rotation of the support block 30 causes relative rotation of the support shaft 20. Then, by the above-described pinion mechanism 90, only the clockwise rotation of the support block 30 (only the counterclockwise relative rotation of the support shaft 20) among the rotation of the support block 30 is the drive shaft 72 of the wind direction fluctuation generator 70. And the wind direction fluctuation generator 70 is driven to generate power.

  As described above, in this embodiment, the light receiving portion 50 uses the lightweight canvas 52 and the lightweight frame 54. Thereby, weight reduction of the wind receiving part 50 can be achieved. Therefore, it is possible to generate power by moving the wind receiving portion 50 more effectively during a light wind.

  Here, the connecting portion 56 of the wind receiving portion 50 is preferably configured to separate the canvas 52 from the frame 54 when a force greater than a predetermined force is applied to the canvas 52. For example, a string that breaks when a force greater than a predetermined force is applied can be used as the connecting portion 56. By using such a connecting portion 56, for example, when a strong gust of wind blows instantaneously, the canvas 52 is separated from the frame 54, so that the entire wind power generator 1 is destroyed by the gust of wind. Can be prevented.

The wind power generator 1 of the present embodiment has a structure that can withstand strong winds, while being able to generate power even with a light wind as described above. 2A to 2C are schematic side views of the wind turbine generator 1 and show the relationship between the wind receiving portion 50 and the wind pressure. 2A shows a case where a weak wind hits the wind receiving portion 50, FIG. 2B shows a case where a medium wind hits, and FIG. 2C shows a case where a strong wind hits. As shown in FIG. 2A, when the wind hitting the wind receiving portion 50 is weak, the area S ₁ of the projection surface onto the vertical plane of the surface that receives the wind is large, so that the wind receiving portion 50 is moved even if the wind is weak. Can do. On the other hand, as shown in Figure 2C, when a strong wind hits the wind receiving unit 50, since the area S ₃ of the projection plane to the vertical plane of the surface receiving the wind decreases, the force exerted on the rotating shaft 40 is also reduced. Therefore, the wind power generator 1 of the present embodiment does not particularly require a sturdy spindle or support. As a result, the cost for constructing the wind turbine generator can be greatly reduced.

  Here, the wind power generator 1 in the present embodiment has a function of automatically facing the wind receiving portion 50 in the direction in which the wind blows. FIG. 3A and FIG. 3B are schematic plan views of the wind turbine generator 1 and show the relationship between the wind receiving portion 50 and the wind direction.

FIG. 3A shows a state in which the wind direction _DW is skewed with respect to the wind receiving portion 50 (rotating shaft 40). In the state shown in FIG. 3A, the wind receiving portion 50 is projected onto a plane perpendicular to the wind direction _DW . When the projected area of the region on the left side of the spindle 20 when viewed along the wind direction D _W is S _L , and the projected area of the region on the right side is S _R , S _L <S _R. Force F _L applied to the left area of the support shaft 20 is proportional to the projected area S _L, the force F _R exerted on the right side of the region is proportional to the projected area S _{R. Therefore,} F L _{<F R} becomes, as indicated by the arrows in FIG. 3A, wind receiving unit 50 is pivoted counterclockwise.

FIG. 3B shows a state where the wind direction _DW faces the wind receiving portion 50 (rotating shaft 40). In the state shown in FIG. 3B, S _L = S _R and F _L = F _R. Therefore, the wind receiving portion 50 that has swung counterclockwise from the state of FIG. 3A automatically stops at a position facing the wind direction D _W shown in FIG. 3B.

That is, in this embodiment, the two wind receiving portions 50 are provided symmetrically, and the center of gravity G of the entire wind receiving portion 50 is in the longitudinal direction of the rotating shaft 40 as shown in FIGS. 3A and 3B. Located in the center. The center of gravity G is at a position shifted from the center of the support shaft 20 in the horizontal plane. The two wind receiving portions 50 are configured to be symmetric with respect to a line L connecting the center of gravity G and the center of the support shaft 20. Therefore, when the wind direction _DW is not directly facing the wind receiving portion 50, a moment centered on the support shaft 20 is generated by the wind striking the wind receiving portion 50, and the wind receiving portion 50 turns. When the wind receiving portion 50 moves to a position facing the wind direction _DW , the moment about the support shaft 20 disappears and stops at that position. In this way, the wind receiving portion 50 automatically faces directly in the direction in which the wind blows.

  Instead of the automatic facing function described above or in addition to the automatic facing function described above, a wind rudder 32 may be attached to the support block 30 as shown in FIG. When the wind direction is skewed with respect to the wind receiving portion 50, the wind strikes the wind rudder 32 and a moment about the support shaft 20 is generated. Thereby, the wind receiving part 50 turns around the spindle 20. When the wind receiving portion 50 moves to a position directly facing the wind direction, the wind rudder 32 becomes parallel to the wind direction, so that no wind force is applied to the wind rudder 32 and a moment about the support shaft 20 is applied. Stops and stops at that position. Even when such a wind rudder 32 is used, it is possible to automatically face the wind receiving portion 50 in the direction in which the wind blows.

  As described above, the wind turbine generator 1 of the present embodiment does not use the strength of the wind but uses the fluctuation of the wind pressure. It can generate electricity. Therefore, the wind power generator 1 can be installed even in a place where the wind speed is low.

  Since the wind power generator using a conventional propeller has a larger amount of power generation as the wind is stronger, it must always be installed in a place where the wind blows. For this reason, conventional wind power generators are suitable for Europe and the United States where the wind speed and direction are stable, but are not so suitable for places with large fluctuations in wind speed and direction, such as Japan. On the other hand, the wind power generator 1 of this embodiment does not consider the strength of the wind, and the amount of power generation increases as the change rate of the wind pressure and the change rate of the wind direction increase. Thus, since the wind power generator 1 of this embodiment can generate electric power using fluctuations in wind pressure and wind direction, it is suitable for a place where fluctuations in wind speed and wind direction are large as in Japan.

  In the case of strong wind, the wind receiving portion 50 is blown up, so that the area of the wind receiving portion 50 to which the wind hits is automatically reduced, so that a large force is not applied to the rotating shaft 40. Therefore, expensive materials and complicated parts are not required. As a result, construction costs and power generation costs can be significantly reduced.

  Furthermore, the wind power generator 1 of the present embodiment has a simple structure as compared with a wind power generator using a conventional propeller. For this reason, failure is unlikely to occur, and maintenance and reliability are high. Furthermore, since the wind power generator 1 of this embodiment does not require a rotor blade like a propeller, it can be disassembled into small parts and transported, and no significant noise is generated. In addition, there is no impact on the natural environment without wild birds colliding and being injured.

  In the present embodiment, the ratchet mechanism 80 is used as the rotation transmission mechanism that transmits the rotation in one direction among the rotations of the rotation shaft 40 to the drive shaft 62 of the wind pressure fluctuation generator 60. You may incorporate in the wind pressure fluctuation | variation generator 60. FIG. In this case, the ratchet mechanism 80 can be omitted, and the rotation of the rotating shaft 40 can be directly used.

  Similarly, in the present embodiment, the claw wheel mechanism 90 is used as the turning transmission mechanism that transmits the turning in one direction of the turning of the support block 30 to the drive shaft 72 of the wind direction fluctuation generator 70. A transmission mechanism may be incorporated in the wind direction fluctuation generator 70. In this case, the ratchet mechanism 90 can be omitted, and the turning of the support block 30 can be used directly.

  FIG. 5 is a perspective view showing a wind turbine generator 101 according to the second embodiment of the present invention. In the first embodiment described above, the ratchet mechanism 80 transmits the rotation of the rotation shaft 40 in the first rotation direction to the drive shaft 62 of the wind pressure fluctuation generator 60, and the ratchet mechanism 90 performs the first rotation of the support block 30. The turning of the direction is transmitted to the drive shaft 72 of the wind direction fluctuation generator 70. Such a configuration is very simple and the number of parts is small, so that it can be manufactured at low cost. However, in the first embodiment, only one direction of rotation of the rotation shaft 40 is used for power generation, and only one direction of rotation of the support block 30 is used for power generation. Therefore, the efficiency of power generation is not good. Therefore, in this embodiment, the rotation of the rotating shaft 40 and the turning of the support block 30 in both directions are used for power generation.

  Specifically, the wind power generator 101 further includes a wind pressure fluctuation generator 160 (second wind pressure fluctuation power generator) in addition to the above-described wind pressure fluctuation power generator 60 (first wind pressure fluctuation power generator). . The wind pressure fluctuation generator 160 has a drive shaft 162 extending in parallel with the rotation shaft 40. The wind pressure fluctuation generator 160 is installed on the support block 30 similarly to the wind pressure fluctuation generator 60, and is arranged in parallel with the wind pressure fluctuation generator 60. A claw wheel mechanism 180 is attached to the drive shaft 162 of the wind pressure fluctuation generator 160. The pinion mechanism 180 is provided corresponding to the gear 42 of the rotary shaft 40. Thus, the rotary shaft 40 is connected to the drive shaft 62 of the wind pressure fluctuation generator 60 via the gear 42 and the claw wheel mechanism 80, and the drive shaft 162 of the wind pressure fluctuation generator 160 via the gear 42 and the claw wheel mechanism 180. Connected to

  Here, the ratchet mechanism 180 meshes with the gear 42 with respect to rotation in the second rotation direction (clockwise) of the rotation shaft 40 (indicated by an arrow A2 in FIG. 5), and rotates the rotation shaft 40 to drive the drive shaft 162. However, for rotation in the first rotation direction (counterclockwise) (indicated by arrow A1 in FIG. 5), the gear 42 is idled so that the rotation of the rotation shaft 40 is not transmitted to the drive shaft 162 ( Configured to be separated from the drive shaft 162). Such a structure of the ratchet mechanism 180 is substantially the same as a ratchet gear used for a rear wheel of a bicycle, for example. As described above, the ratchet mechanism 180 transmits the rotation in the second rotation direction (clockwise) of the rotation of the rotation shaft 40 to the drive shaft 162 of the wind pressure fluctuation generator 160 (second rotation transmission mechanism). ).

  The wind power generator 101 further includes a wind direction fluctuation generator 170 (second wind direction fluctuation generator) in addition to the wind direction fluctuation generator 70 (first wind direction fluctuation generator) described above. The wind direction fluctuation generator 170 has a drive shaft 172 extending in parallel with the support shaft 20. The wind direction fluctuation generator 170 is installed on the support block 30 similarly to the wind direction fluctuation generator 70, and is arranged in parallel with the wind direction fluctuation generator 70. A claw wheel mechanism 190 is attached to the drive shaft 172 of the wind direction fluctuation generator 170. The pinion mechanism 190 is provided corresponding to the gear 22 of the support shaft 20. As a result, the support shaft 20 is connected to the drive shaft 72 of the wind direction fluctuation generator 70 via the gear 22 and the claw wheel mechanism 90, and the drive shaft 172 of the wind direction fluctuation generator 170 via the gear 22 and the claw wheel mechanism 190. Connected to

  Here, the ratchet mechanism 190 meshes with the gear 22 and rotates relative to the support shaft 20 in the second turning direction (counterclockwise) of the support block 30 (indicated by an arrow B2 in FIG. 5). The rotation is transmitted to the drive shaft 172, but the rotation of the gear 22 is idled and the relative rotation of the support shaft 20 is transmitted to the drive shaft 172 in the first turning direction (clockwise) (indicated by the arrow B 1 in FIG. 5). It is configured so as not to be separated (from the drive shaft 172). Such a structure of the ratchet mechanism 190 is substantially the same as a ratchet gear used for a rear wheel of a bicycle, for example. In this way, the ratchet mechanism 190 turns the support block 30 in the second turning direction (counterclockwise) (clockwise relative rotation of the support shaft 20) to the drive shaft 172 of the wind direction fluctuation generator 170. It functions as a turning transmission mechanism for transmitting (second turning transmission mechanism).

  In the wind power generator 101 having such a configuration, among the repetitive rotational motions of the rotating shaft 40 caused by the wind hitting the canvas 52 of the wind receiving portion 50, the rotation of the rotating shaft 40 in the counterclockwise direction is the gear 42 and It is transmitted to the drive shaft 62 of the wind pressure fluctuation generator 60 via the claw wheel mechanism 80, and the wind pressure fluctuation generator 60 is driven to generate power. On the other hand, the clockwise rotation of the rotary shaft 40 is transmitted to the drive shaft 162 of the wind pressure fluctuation generator 160 via the gear 42 and the claw wheel mechanism 180, and the wind pressure fluctuation generator 160 is driven to generate power. Thus, in this embodiment, since the rotation of the rotating shaft 40 in both directions is used for power generation, the power generation efficiency is improved as compared with the first embodiment described above.

  Of the turning of the support block 30 caused by the wind hitting the canvas 52 of the wind receiving portion 50, the clockwise turning of the support block 30 is caused by the wind direction fluctuation generator 70 via the gear 22 and the claw wheel mechanism 90. And the wind direction fluctuation generator 70 is driven to generate power. On the other hand, the counterclockwise turning of the support block 30 is transmitted to the drive shaft 172 of the wind direction fluctuation generator 170 via the gear 22 and the claw wheel mechanism 190, and the wind direction fluctuation generator 170 is driven to generate power. Thus, in this embodiment, since the turning of the support block 30 in both directions is used for power generation, the power generation efficiency is improved as compared with the first embodiment described above.

  In the present embodiment, the two generators 60 and 160 are provided as the wind pressure fluctuation generator, but these can be integrated into one generator. For example, if a rotation transmission mechanism (third rotation transmission mechanism) that reverses the rotation of the rotation shaft 40 in the second rotation direction (clockwise) and transmits the rotation to the drive shaft 62 of the wind pressure fluctuation generator 60 is provided, The fluctuating generator 160 can be eliminated. Such a rotation transmission mechanism can be configured by combining a plurality of gears, for example. In this case, the counterclockwise rotation of the rotating shaft 40 is transmitted to the drive shaft 62 of the wind pressure fluctuation generator 60 via the gear 42 and the pinion wheel mechanism 80, and the clockwise rotation of the rotating shaft 40 is transmitted to the gear. 42 and the rotation transmission mechanism are inverted and transmitted to the drive shaft 62 of the wind pressure fluctuation generator 60. Therefore, the rotation of the rotating shaft 40 in both directions is used for power generation. However, when integrating the wind pressure fluctuation generator into one in this way, a complicated mechanism is required as the rotation transmission mechanism, and the loss of power transmission becomes relatively large. Therefore, it is considered that the power generation efficiency is lower than that of the wind power generator 101 shown in FIG.

  In addition, although the two generators 70 and 170 are provided as the wind direction fluctuation generator, they can be integrated into one generator as in the case of the wind pressure fluctuation generator. For example, a turning transmission mechanism (third turning transmission mechanism) that reverses the turning in the second turning direction (counterclockwise) out of the turning of the support block 30 and transmits it to the drive shaft 72 of the wind direction fluctuation generator 70 can be provided. In this case, the wind direction fluctuation generator 170 can be eliminated. Such a turning transmission mechanism can be configured by combining a plurality of gears, for example. In this case, the clockwise rotation of the support block 30 is transmitted to the drive shaft 72 of the wind direction fluctuation generator 70 via the gear 22 and the claw wheel mechanism 90, and the counterclockwise rotation of the support block 30 is 22 and the rotation transmission mechanism are inverted and transmitted to the drive shaft 72 of the wind direction fluctuation generator 70. Therefore, turning in both directions of the support block 30 is used for power generation. However, when integrating the wind direction fluctuation generator into one in this way, a complicated mechanism is required as the turning transmission mechanism, and the loss of power transmission becomes relatively large. Therefore, it is considered that the power generation efficiency is lower than that of the wind power generator 101 shown in FIG.

  By the way, the power generation efficiency of the wind power generator as described above is related to the weight of the wind receiving portion 50. That is, when the wind receiving portion 50 is blown upward by the wind, a part of the wind force is converted into electricity. Therefore, the more easily the wind receiving portion 50 is blown upward, that is, the light receiving portion 50 is lighter. The lighter the power generation efficiency is.

  On the other hand, when the wind receiving part 50 is light, the following problems arise. When the wind stops, the wind receiving portion 50 tries to return to the initial position (the stationary position vertically below the rotating shaft 40) by its own weight. At this time, the rotational torque of the wind pressure fluctuation generator 60 or 160 is applied to the wind receiving portion 50. If the wind receiving portion 50 is heavy, the rotational torque due to its own weight becomes larger than the rotational torque of the wind pressure fluctuation generator 60 or 160, so that the wind receiving portion 50 can return to the initial position. However, if the wind receiving unit 50 is light, the rotation torque due to the weight of the wind receiving unit 50 may not be able to overcome the rotation torque of the wind pressure fluctuation generator 60 or 160. In such a case, once the wind receiving portion 50 blows upward, it cannot return to the initial position.

  The wind turbine generator according to the third embodiment of the present invention has a structure capable of returning to the initial position by its own weight after being blown up by wind even if the wind receiving portion 50 is light. FIG. 6 is a perspective view showing a wind turbine generator 201 according to the third embodiment of the present invention.

  As shown in FIG. 6, in addition to the wind pressure fluctuation generator 60 (first wind pressure fluctuation generator) in the first embodiment, the wind power generation apparatus 201 in the present embodiment further includes a wind pressure fluctuation generator 260 (second Wind pressure fluctuation generator). The wind pressure fluctuation generator 260 has a drive shaft 262 extending in parallel with the rotation shaft 40. The wind pressure fluctuation generator 260 is installed on the support block 30 in parallel with the wind pressure fluctuation generator 60, and is disposed on the opposite side of the wind pressure fluctuation generator 60 with the rotating shaft 40 interposed therebetween. A claw wheel mechanism 280 is attached to the drive shaft 262 of the wind pressure fluctuation generator 260. The wind pressure fluctuation generator 260, the drive shaft 262, and the claw wheel mechanism 280 have the same structures as the wind pressure fluctuation generator 160, the drive shaft 162, and the claw wheel mechanism 180 in the second embodiment described above, respectively. Detailed description thereof will be omitted.

  The rotary shaft 40 is provided with a semicircular gear 242 (intermediate transmission mechanism) centered on the rotary shaft 40 in place of the gear 42 in the first embodiment. The semicircular gear 242 has teeth 244 in the upper half. The teeth 244 of the semicircular gear 242 mesh with the claw wheel mechanism 80 in the operation region of the claw wheel mechanism 80 so that the rotation of the rotation shaft 40 in the first rotation direction (counterclockwise) is transmitted to the claw wheel mechanism 80. Further, it is configured to mesh with the ratchet mechanism 280 in the operation region of the ratchet mechanism 280 and transmit the rotation of the rotation shaft 40 in the second rotation direction (clockwise) to the ratchet mechanism 280. .

  FIG. 7A is a schematic side view showing the vicinity of the semicircular gear 242 of the wind turbine generator 201. FIG. 7A shows a state where no wind is blowing and no force is applied to the wind receiving portion 50 (stationary state). In this state, the wind receiving part 50 stops at an initial position vertically below the rotary shaft 40 by its own weight.

  In the state shown in FIG. 7A, if, for example, wind hits the wind receiving portion 50 from left to right, the wind receiving portion 50 rotates counterclockwise about the rotation shaft 40 as shown in FIG. Rotate. At this time, the semicircular gear 242 also rotates counterclockwise about the rotation shaft 40, and a part of the teeth 244 of the semicircular gear 242 meshes with the claw wheel mechanism 80 in the operation region 82 of the claw wheel mechanism 80. Thereby, the counterclockwise rotation of the rotating shaft 40 is transmitted to the drive shaft 62 of the wind pressure fluctuation generator 60, and the wind pressure fluctuation generator 60 is driven to generate power.

  Here, since the semicircular gear 242 has no teeth in the lower half, the teeth 244 of the semicircular gear 242 are in a state where the semicircular gear 242 rotates counterclockwise from the initial position around the rotation shaft 40. Is located outside the operating region of the ratchet mechanism 280.

  When the wind stops in the state shown in FIG. 7B, as shown in FIG. 7C, the wind receiving portion 50 starts to rotate clockwise by its own weight. At this time, the semicircular gear 242 is idly rotated by the ratchet structure of the above-described ratchet mechanism 80, and the rotational torque of the wind pressure fluctuation generator 60 is not applied to the wind receiving portion 50.

  Here, assuming that a circular gear is used as in the second embodiment described above, the gear teeth are located in the operating region of the ratchet mechanism 280, so that the wind pressure fluctuation generator 260 is rotated in the wind receiving portion 50. Torque will be applied. On the other hand, in this embodiment, since the teeth 244 of the semicircular gear 242 are located outside the operation region of the ratchet wheel mechanism 280, the rotational torque of the wind pressure fluctuation generator 260 is not applied to the wind receiving portion 50.

  As described above, since the rotational torque is not applied to the wind receiving portion 50 from either the wind pressure fluctuation generator 60 or the wind pressure fluctuation generator 260, the wind receiving portion 50 is automatically set to the initial position by its own weight (position shown in FIG. 7A). Return to.

  On the other hand, if the wind hits the wind receiving portion 50 from right to left in the state shown in FIG. 7A, the wind receiving portion 50 rotates clockwise around the rotation shaft 40 as shown in FIG. Rotate. At this time, the semicircular gear 242 also rotates clockwise about the rotation shaft 40, and a part of the teeth 244 of the semicircular gear 242 meshes with the claw wheel mechanism 280 in the operation region 282 of the claw wheel mechanism 280. As a result, the clockwise rotation of the rotary shaft 40 is transmitted to the drive shaft 262 of the wind pressure fluctuation generator 260, and the wind pressure fluctuation generator 260 is driven to generate power. At this time, the teeth 244 of the semicircular gear 242 are located outside the operating region of the claw mechanism 80.

  When the wind stops in the state shown in FIG. 7D, as shown in FIG. 7E, the wind receiving portion 50 starts to rotate counterclockwise due to its own weight. At this time, the semicircular gear 242 is idly rotated by the ratchet structure of the above-described ratchet mechanism 280, and the rotational torque of the wind pressure fluctuation generator 260 is not applied to the wind receiving portion 50. Further, since the teeth 244 of the semicircular gear 242 are located outside the operating region of the claw wheel mechanism 80, the rotational torque of the wind pressure fluctuation generator 60 is not applied to the wind receiving portion 50. As described above, since the rotational torque is not applied to the wind receiving portion 50 from either the wind pressure fluctuation generator 60 or the wind pressure fluctuation generator 260, the wind receiving portion 50 is automatically set to the initial position by its own weight (position shown in FIG. 7A). Return to.

  The semicircular gear 242 of the present embodiment has the teeth 244 in the upper half in the initial position, but the semicircular gear having teeth in the lower half by replacing the claw mechanism 80 and the claw mechanism 280. Can also be used.

  Moreover, in this embodiment, although the two generators 60 and 260 were provided as a wind pressure fluctuation | variation generator, these can also be integrated into one generator. For example, if a rotation transmission mechanism (third rotation transmission mechanism) that reverses the rotation of the rotation shaft 40 in the second rotation direction (clockwise) and transmits the rotation to the drive shaft 62 of the wind pressure fluctuation generator 60 is provided, The fluctuation generator 260 can be eliminated. Such a rotation transmission mechanism can be configured by combining a plurality of gears, for example. In this case, the counterclockwise rotation of the rotating shaft 40 is transmitted to the drive shaft 62 of the wind pressure fluctuation generator 60 via the semicircular gear 242 and the ratchet wheel mechanism 80, and the clockwise rotation of the rotating shaft 40 is transmitted. Then, it is inverted via the semicircular gear 242 and the rotation transmission mechanism and transmitted to the drive shaft 62 of the wind pressure fluctuation generator 60.

  FIG. 8 is a schematic side view showing the periphery of the rotating shaft 40 of the wind turbine generator according to the fourth embodiment of the present invention, and FIG. 9 is a plan view of FIG. In the present embodiment, the transmission ratio of the wind pressure fluctuation generator 60 to the drive shaft 62 is changed according to the rotation angle θ of the rotary shaft 40 so that the rotational torque and the rotational speed applied to the drive shaft 62 are optimized. is doing.

  As shown in FIG. 8, the wind turbine generator according to this embodiment includes a composite gear 342 in which a plurality of sector gears having different radii are combined instead of the gear 42 according to the first embodiment. The compound gear 342 of the present embodiment has three sector gears 342a, 342b, and 342c, the sector gear 342a has the smallest radius, the sector gear 342b has the second smallest radius, and the sector gear 342c has a radius. Is the largest. Teeth are provided on the outer periphery of each sector gear 342a, 342b, 342c.

  In addition, the wind turbine generator according to the present embodiment includes a compound ratchet mechanism 380 in which a plurality of ratchet wheels are combined instead of the ratchet wheel mechanism 80 according to the first embodiment. As shown in FIG. 9, the compound ratchet mechanism 380 includes three rotation transmission units 380a, 380b, and 380c corresponding to the above-described sector gears 342a, 342b, and 342c. Of the three ratchet wheel portions, the rotation transmission unit 380 a is disposed at a position closest to the rotation shaft 40, and the rotation transmission unit 380 c is disposed at a position farthest from the rotation shaft 40. The rotation transmission unit 380b is disposed between the rotation transmission unit 380a and the rotation transmission unit 380c.

  The rotation transmission unit 380c includes a ratchet wheel 384c that can mesh with the sector gear 342c of the compound gear 342, a shaft 386c that is connected to the drive wheel 62 of the pinion wheel 384c and the wind pressure fluctuation generator 60, and a gear that is provided on the shaft 386c. 388c. With such a configuration, the rotation transmission unit 380c meshes with the sector gear 342c and transmits the rotation of the rotation shaft 40 to the drive shaft 62 with respect to the rotation of the rotation shaft 40 in the first rotation direction. For the rotation in the direction, the sector gear 342c is idled so that the rotation of the rotary shaft 40 is not transmitted to the drive shaft 62.

  The rotation transmission unit 380b includes a ratchet wheel 384b that can mesh with the sector gear 342b of the compound gear 342, a shaft 386b that is coupled to the ratchet wheel 384b, and a gear 388b that is provided on the shaft 386b and meshes with the gear 388c of the rotation transmission unit 380c. And have. With this configuration, the rotation transmission unit 380b meshes with the sector gear 342b and transmits the rotation of the rotation shaft 40 to the drive shaft 62 with respect to the rotation of the rotation shaft 40 in the first rotation direction. For rotation in the direction, the sector gear 342b is idled so that the rotation of the rotary shaft 40 is not transmitted to the drive shaft 62.

  The rotation transmission unit 380a includes a ratchet wheel 384a that can mesh with the sector gear 342a of the compound gear 342, a shaft 386a that is coupled to the ratchet wheel 384a, and a gear 388a that meshes with the gear 388b of the rotation transmission unit 380b. And have. With this configuration, the rotation transmission unit 380a meshes with the sector gear 342a and transmits the rotation of the rotation shaft 40 to the drive shaft 62 with respect to the rotation of the rotation shaft 40 in the first rotation direction. For the rotation in the direction, the sector gear 342a is idled so that the rotation of the rotary shaft 40 is not transmitted to the drive shaft 62.

  Here, the central angles of the sector gears 342a, 342b, and 342c are each 30 °, and the sector gear 342a having the smallest radius is a claw when the rotation angle θ of the rotating shaft 40 is 0 ° to 30 °. It is comprised so that it can mesh with the wheel 384a. The sector gear 342b having the second smallest radius is configured to be able to mesh with the claw wheel 384b when the rotation angle θ of the rotary shaft 40 is 30 ° to 60 °. The sector gear 342c having the largest radius is configured to be able to mesh with the claw wheel 384c when the rotation angle θ of the rotary shaft 40 is 60 ° to 90 °.

  The compound gear 342 of this embodiment functions as a transmission ratio control mechanism that changes the transmission ratio according to the rotation angle θ of the rotating shaft 40 and transmits the rotation of the rotating shaft to the compound ratchet mechanism 380. This function will be described with reference to FIG. 8, FIG. 10, and FIG. In the following description, it is assumed that the rotation shaft 40 rotates in the first rotation direction (counterclockwise).

  When the rotation angle θ of the rotating shaft 40 is 0 ° to 30 °, the sector gear 342a meshes with the claw wheel 384a as shown in FIG. When the rotation shaft 40 further rotates and the rotation angle θ changes from 30 ° to 60 °, the sector gear 342b meshes with the claw wheel 384b as shown in FIG. At this time, since the radius of the sector gear 342b is larger than the radius of the sector gear 342a, the rotation speed of the hook wheel 384b is higher than that in the case where the rotation angle θ is 0 ° to 30 °. Therefore, the rotational speed of the drive shaft 62 of the wind pressure fluctuation generator 60 is also increased and the amount of power generation is increased.

  When the rotation shaft 40 further rotates and the rotation angle θ changes from 60 ° to 90 °, the sector gear 342c meshes with the claw wheel 384c as shown in FIG. At this time, since the radius of the sector gear 342c is larger than the radius of the sector gear 342b, the rotation speed of the hook wheel 384c is further increased as compared with the case where the rotation angle θ is 30 ° to 60 °. Therefore, the rotational speed of the drive shaft 62 of the wind pressure fluctuation generator 60 is also increased, and the power generation amount is further increased.

  Thus, according to the present embodiment, the transmission ratio of the wind pressure fluctuation generator 60 to the drive shaft 62 can be changed according to the rotation angle θ of the rotation shaft 40. Therefore, the rotational torque and the rotational speed applied to the drive shaft 62 can be optimized, and the power generation efficiency of the wind pressure fluctuation generator 60 can be improved.

  In this embodiment, the example in which only one generator 60 is provided as the wind pressure fluctuation generator has been described. However, two generators are provided as in the second and third embodiments described above. Also good. In that case, the shape of the composite gear 342 described above may be designed to correspond to the generator to be added, and a mechanism similar to the composite ratchet mechanism 380 described above may be added. Also in this case, the wind power generator can be configured such that the initial position of the wind receiving portion 50 automatically returns due to its own weight as in the third embodiment described above.

  FIG. 12 is a perspective view showing a wind turbine generator 401 in the fifth embodiment of the present invention. In the present embodiment, the wind receiving portion 450 is fixed above the rotating shaft 40. Corresponding to the wind receiving portion 450, a weight 458 for balancing the wind receiving portion 450 is fixed below the rotation shaft 40. Since the other structure is the same as that of the first embodiment described above, description thereof is omitted here.

  Generally, the higher the position from the ground, the stronger the wind. Therefore, by providing the wind receiving portion 450 above the rotating shaft 40 as in the present embodiment, the wind force is used more efficiently. It can be performed. In addition, the structure which provides this wind-receiving part 450 above the rotating shaft 40 can be applied to any of the first to fourth embodiments described above.

  In each of the embodiments described above, one or two wind direction fluctuation generators are provided. However, these wind direction fluctuation generators and the transmission mechanism related to the wind direction fluctuation generator are omitted, and The structure may be simplified.

  Moreover, in each embodiment mentioned above, although the spindle 20 was fixed to the ground 2, and it demonstrated as the support block 30 turning with respect to the spindle 20, this invention is not limited to this, rotation The support block 30 (support part) should just be able to turn in a horizontal surface with the axis | shaft 40. FIG. For example, the base 10 may be configured to rotatably support the support shaft 20 and the support shaft 20 and the support block 30 may be fixed.

  The rotation transmission mechanism, the rotation transmission mechanism, the intermediate transmission mechanism, and the transmission ratio control mechanism of each embodiment described above transmit rotation or rotation using meshing of gears, but the present invention is not limited to this. There is no limitation as long as it transmits rotation or turning by some kind of engagement.

  Moreover, it is also possible to provide an energy storage device that uses ridges, gravity, or the like, and to store the electrical energy generated by the generator in each of the above-described embodiments in this energy storage device.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and it goes without saying that the present invention may be implemented in various forms within the scope of the technical idea.

1, 101, 201, 401 Wind turbine generator 2 Ground 10 Base 20 Support shaft 22 Gear 30 Support block (support portion)
32 Wind direction rudder 40 Rotating shaft 42 Gear 50, 450 Wind receiving part 52 Canvas 54 Frame 56 Connection part 60, 160, 260 Wind pressure fluctuation generator 62, 72, 162, 172, 262 Drive shaft 70, 170 Wind direction fluctuation generator 80, 180,280 Claw mechanism (rotation transmission mechanism)
90, 190 Claw mechanism (turning transmission mechanism)
242 Semi-circular gear (intermediate transmission mechanism)
342 Compound gears 342a, 342b, 342c Fan-shaped gear 380 Compound ratchet mechanism 380a, 380b, 380c Rotation transmission part 384a, 384b, 384c Claw wheel 386a, 386b, 386c Shaft 388a, 388b, 388c Gear 458 Weight

Claims (9)

A rotating shaft extending in the horizontal direction;
A wind receiving portion fixed to the rotating shaft;
A support portion that supports the rotating shaft so that the rotating shaft can be rotated by the force of the wind that strikes the wind receiving portion;
A support shaft that supports the support portion so that the support portion can swivel in a horizontal plane together with the rotating shaft by the force of the wind that strikes the wind receiving portion;
A first wind pressure fluctuation generator having a drive shaft;
A first rotation transmission mechanism for transmitting rotation in a first rotation direction of rotation of the rotation shaft to a drive shaft of the first wind pressure fluctuation generator;
A wind power generator characterized by comprising: The center of gravity of the wind receiving portion is at a position different from the center of the support shaft in a horizontal plane,
2. The wind power generator according to claim 1, wherein the wind receiving portion is configured to be symmetric with respect to a line connecting a center of the support shaft and a center of gravity of the wind receiving portion.   3. The transmission ratio control mechanism according to claim 1, further comprising a transmission ratio control mechanism that changes a transmission ratio according to a rotation angle of the rotation shaft and transmits the rotation of the rotation shaft to the first rotation transmission mechanism. The wind power generator described. The transmission ratio control mechanism includes a plurality of sector gears having different radii,
The first rotation transmission mechanism is a plurality of rotation transmission portions provided corresponding to the plurality of sector gears of the transmission ratio control mechanism, and is engaged with the corresponding sector gears to thereby The wind turbine generator according to claim 3, further comprising a plurality of rotation transmission units that transmit rotation in the first rotation direction to a drive shaft of the first wind pressure fluctuation generator. A second wind pressure fluctuation generator having a drive shaft;
A second rotation transmission mechanism for transmitting rotation in the second rotation direction of rotation of the rotation shaft to the drive shaft of the second wind pressure fluctuation generator;
The wind turbine generator according to any one of claims 1 to 4, further comprising: Engagement with the first rotation transmission mechanism in the operation region of the first rotation transmission mechanism transmits rotation of the rotation shaft in the first rotation direction to the first rotation transmission mechanism, and the second rotation transmission mechanism. An intermediate transmission mechanism for transmitting rotation in the second rotational direction of the rotation shaft to the second rotation transmission mechanism by engaging with the second rotation transmission mechanism in an operation region of the rotation transmission mechanism;
In a state where the rotation shaft rotates in the first rotation direction from the initial position, the rotation shaft is located outside the operation region of the second rotation transmission mechanism, and a part thereof is the operation region of the first rotation transmission mechanism. Located in
In a state where the rotation shaft is rotated in the second rotation direction from the initial position, the rotation shaft is located outside the operation region of the first rotation transmission mechanism, and a part thereof is the operation of the second rotation transmission mechanism. Located in the area,
The wind turbine generator according to claim 5, further comprising an intermediate transmission mechanism.   The wind turbine generator according to claim 6, wherein the intermediate transmission mechanism includes a semicircular gear centered on the rotation shaft. A wind direction generator having a drive shaft;
A turning transmission mechanism for transmitting the turning in the first turning direction to the drive shaft of the wind direction fluctuation generator among the turning of the support portion;
The wind turbine generator according to any one of claims 1 to 7, further comprising: The wind receiving part is
Canvas that receives the wind,
A frame attached to the rotating shaft;
A plurality of connecting portions for connecting the canvas to the frame, and a connecting portion for separating the canvas from the frame when a force greater than a predetermined magnitude is applied;
The wind power generator according to any one of claims 1 to 8, wherein the wind power generator is provided.

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