Wind power generation device

Abstract

To provide a lift-type wind power generation device having better power generation efficiency compared to conventional drag-type wind power generations.SOLUTION: A wind turbine generation device of the present invention comprises a rotatably installed power transmission shaft, a rotary disk connected to the power transmission shaft, one or more wind receiving bodies provided on the rotary disk, and a generator connected to the power transmission shaft. The wind receiving body has a first surface and a second surface different from the first surface, and is shaped so that when wind is received by the first surface, lift is generated on the second surface side.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a wind turbine generator. [Background technology]

[0002] Recently, the effects of climate change caused by global warming have been felt all over the world. Under these circumstances, there is a need to promote the introduction of renewable energy in order to achieve zero greenhouse gas emissions, which are one of the causes of global warming.

[0003] BACKGROUND ART Conventionally, a vertical axis (vertical type) wind power generator (Patent Document 1) has been known, in which eight radial blades (wind receiving bodies) are provided on a rotating shaft extending in the vertical direction. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-337245 Summary of the Invention [Problem to be solved by the invention]

[0005] The wind turbine generator is a so-called drag-type wind turbine generator, and there is room for improvement in terms of power generation efficiency.

[0006] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lift-type wind turbine generator that has superior power generation efficiency compared to conventional drag-type wind turbine generators. [Means for solving the problem]

[0007] The wind power generation device of the present invention comprises a rotatably installed power transmission shaft, a rotating disk connected to the power transmission shaft, one or more wind receiving bodies provided on the rotating disk, and a generator connected to the power transmission shaft, and the wind receiving body has a first surface and a second surface different from the first surface, and is shaped so that when wind is received by the first surface, lift is generated on the second surface side. [Effects of the Invention]

[0008] According to the present invention, the rotation speed of the rotating disk connected to the power transmission shaft can be increased by using lift, and therefore power generation efficiency is superior to that of conventional drag-type wind turbine generators. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic diagram showing an example of a wind turbine generator according to the present invention; [Figure 2] (a) is an explanatory diagram showing an example of a wind-receiving body, and (b) is an explanatory diagram of the forces acting on the wind-receiving body. [Figure 3] FIG. 1A is an explanatory diagram showing an example of an outer structure, and FIG. 1B is an explanatory diagram showing another example of an outer structure. [Figure 4] 1A is a front view showing an example of a wind turbine generator of the present invention, FIG. 1B is a partially enlarged view of FIG. 1A, and FIG. 1C is an explanatory diagram of the wind intake means shown in FIG. [Figure 5] 10A shows another example of the wind intake means, and FIG. 10B is an explanatory diagram of the wind intake means of FIG. 10A in use. [Figure 6] FIG. 1A is a schematic diagram showing an example of an adhesion prevention means, and FIG. 1B is a plan view of the adhesion prevention means of FIG. [Figure 7] FIG. 10 is a schematic diagram showing another example of a wind turbine generator according to the present invention. [Figure 8] 8A is a perspective view of the top surface of the wind-receiving means of the wind power generator of FIG. 7, and FIG. 8B is a perspective view of the bottom surface of the wind-receiving means of the wind power generator of FIG. 7. [Figure 9](a) is an explanatory diagram of when a generator is installed at the upper end of the power transmission shaft, (b) is an explanatory diagram of when two generators are installed spaced apart in the vertical direction of the power transmission shaft, and (c) is an explanatory diagram of when four generators are installed spaced apart in the vertical direction of the power transmission shaft. [Figure 10] FIG. 10 is an explanatory diagram showing another example of a power transmission shaft. [Figure 11] (a) is a schematic diagram showing an example of a case where a half-bowl-shaped wind receiving body is installed on both the top and bottom sides of a rotating disk, (b) is an explanatory diagram of a partial cutout of the X part of (a), and (c) is a cross-sectional view of (b). DETAILED DESCRIPTION OF THE INVENTION

[0010] (Embodiment) An example of an embodiment of a wind turbine generator of the present invention will be described with reference to the drawings. As an example, the wind turbine generator shown in Fig. 1 is a vertical axis type (vertical type) wind turbine generator, and includes a generator 10, a power transmission shaft 20, a wind receiving means 30, and an outer structure 40 as its main components.

[0011] The generator 10 is a device (generator) that converts rotational motion into electricity. The generator 10 may be a new or existing one.

[0012] A power transmission shaft 20 is connected to the generator 10. The power transmission shaft 20 is a member that transmits rotational force from a wind receiving means 30 (described later) to the generator 10. In this embodiment, the power transmission shaft 20 is a vertically elongated column that is perpendicular to the generator 10, and its lower end is connected to the generator 10. The upper end of the power transmission shaft 20 is rotatably supported by a bearing 21.

[0013] The wind-receiving means 30 is a member that receives wind and rotates the power transmission shaft 20. In this embodiment, a plurality of wind-receiving means 30 are provided in multiple stages (three stages in the example of FIG. 1) at intervals in the vertical direction of the power transmission shaft 20.

[0014] Each wind receiving means 30 includes a rotating disk 31 connected to the power transmission shaft 20 and a wind receiving body 32 installed on the upper surface of the rotating disk 31. The rotating disk 31 can be made of a plate material of any shape, including circular or rectangular, as well as elliptical. In addition, a plate material with a curved portion or a notched portion can also be used as the rotating disk 31. The rotating disk 31 does not have to be made of a plate material.

[0015] As shown in Figure 2(a), the wind receiver 32 of this embodiment is a wing-shaped member with a cross-sectional shape that gradually becomes sharper from one rounded end to the other, and has a gently curved bottom surface 32a and an upper surface 32b that has a curved surface that is more greatly curved upward than the bottom surface 32a. The left and right end surfaces of the wind receiver 32 are flat. The wing-shaped wind receiver (hereinafter sometimes referred to as the "wing-shaped wind receiver" for convenience of explanation) 32 can be made of aluminum, FRP (fiber reinforced plastic), etc.

[0016] When such a wing-shaped wind receiver 32 receives wind from the right side as shown in Figure 2(b), the wind hitting the bottom surface 32a generates lift L and drag D. As a result, a force R acts on the wing-shaped wind receiver 32 in a direction generated by the combination of lift L and drag D, and this force R accelerates the rotation of the turntable 31.

[0017] In the example shown in Fig. 1, five wind receiving bodies 32 are provided at intervals in the rotation direction of the turntable 31. The number of wind receiving bodies 32 installed on one turntable 31 may be more or less than five. Each wind receiving body 32 is supported by an L-shaped bracket 33 fixed to the turntable 31. The shape of the bracket 33 may be other shapes.

[0018] The wind receiving body 32 can be supported so that it swings when it receives wind, or it can be supported fixedly so that it does not swing (so that the positional relationship with the bracket 33 does not change).

[0019] 1, the wind receiving means 30 are provided in three stages spaced apart in the vertical direction, but the wind receiving means 30 may be provided in more or less than three stages.

[0020] In this embodiment, the wind receiving means 30 of each stage has the same structure, but wind receiving means 30 of each stage may have a different structure. Different structures include, for example, when the shape and size of the rotating disk 31 are different, and when the number, size, shape, arrangement, etc. of the wind receiving bodies 32 are different.

[0021] The outer structure 40 is a member that covers the outside of the generator 10, the power transmission shaft 20, and the wind-receiving means 30. The outer structure 40 is a member that prevents animals such as birds and other flying objects from colliding with the wind-receiving means 30, and also functions as a member that supports the wind-intake means 50, which will be described later, when the wind-intake means 50 is provided.

[0022] 1, the outer structure 40 of this embodiment is a structure having a substantially triangular pyramid shape tapering toward the upper end. The outer structure 40 may also have a pyramidal shape other than a triangular pyramid, such as a conical or rectangular pyramid shape. The outer structure 40 may also have a truncated pyramid shape in which the apex side of a triangular pyramid or conical pyramid is cut along a plane parallel to the bottom surface.

[0023] In this application, the term "pyramidal" is a concept that includes triangular pyramids, other pyramidal shapes, conical shapes, and the like, as well as truncated pyramidal shapes in which the top side of these is cut by a plane parallel to the base.

[0024] When the outer structure 40 is made into a pyramidal shape such as a triangular pyramid or a cone, wind can escape along the inclined surface of the outer structure 40 as shown by the dotted line in Fig. 4(a), which prevents excessive wind from entering or being received, and reduces the risk of collapse or damage to the wind-receiving body 32, power transmission shaft 20, outer structure 40, etc. This effect is particularly great when the shape of the outer structure 40 is made into a triangular shape (triangular pyramid), which has the property of being resistant to external pressure.

[0025] In this embodiment, the outer structure 40 is a mesh structure equipped with ventilation holes 41 through which wind passes and multiple truss structures so that it will not collapse or be damaged even when exposed to strong winds. The outer structure 40 in this embodiment is configured in the shape of a truncated triangular pyramid by combining three supports and mesh material.

[0026] The configuration of the outer structure 40 is one example, and other configurations are also possible. For example, it can be configured by combining multiple long members in a diagonal lattice pattern as shown in Figure 3(a), or by a perforated planar member as shown in Figure 3(b). In either case, it is provided with ventilation holes 41 through which air can pass.

[0027] The material of the outer structure 40 is not particularly limited, but if wind intake means 50 (described later) is provided, it is preferable that the outer structure 40 be made of a material that has enough strength and hardness to support the wind intake means 50. Furthermore, if adhesion prevention means 60 (described later) is provided, the outer structure 40 is preferably made of a material that vibrates when struck by a striking tool 62.

[0028] In this embodiment, the outer structure 40 is provided with wind intake means 50 for taking in wind inside. The wind intake means 50 is a turbo device with wind power concentration and rectification functions. As an example, the wind intake means 50 shown in Figures 4(a) to (c) is a so-called wind lens-shaped structure, and multiple wind intake means 50 are attached to the outer structure 40.

[0029] 4(c), the wind intake means 50 of this embodiment is in the shape of a circular ring, with one side edge widening like a trumpet. Due to its structure, the wind intake means 50 takes in wind from a small diameter opening (hereinafter referred to as the "small diameter opening") 51 and discharges it from a large diameter opening (hereinafter referred to as the "large diameter opening") 52, thereby amplifying the taken-in wind.

[0030] As shown in Figure 4(a), a plurality of wind intake means 50 are attached to the outer structure 40. In this embodiment, the wind intake means 50 are provided at the same height as the wind receiving means 30 located inside the outer structure 40 so that wind can be sent intensively to the wind receiving bodies 32 that make up the wind receiving means 30 of each stage.

[0031] A plurality of wind intake means 50 are provided along the circumferential direction of each stage. The wind intake means 50 of this structure is attached so that the small diameter opening 51 faces outward and the large diameter opening 52 faces inward.

[0032] The wind intake means 50 shown here is just one example, and wind intake means 50 other than those shaped like a wind lens can also be used. For example, as shown in Figure 5(a), it is also possible to use a wind intake means 50 equipped with a flow straightening net 54 inside a pipe member 53. Wind intake means 50 of this structure is attached so that the large diameter opening 55 faces outward and the small diameter opening 56 faces inward, as shown in Figure 5(b).

[0033] By providing such wind intake means 50, the taken-in wind can be rectified by the rectifying net 54 and blown in a straight line onto the wind receiving body 32. By blowing the straightened straight wind onto the wind receiving body 32, the wind receiving body 32 can be rotated smoothly.

[0034] Although there is no particular limitation on the direction in which the wind intake means 50 is installed, it is preferable to install each wind intake means 50 facing in a direction horizontal to the rotation direction of the wind receiving means 30 in order to minimize the impact of turbulence when it occurs.

[0035] However, the wind intake means 50 is not an essential component and can be omitted when not required. For example, it can be omitted when the system is installed in a location where sufficient wind force is expected to generate electricity even without the wind intake means 50.

[0036] As shown in Figures 6(a) and 6(b), the wind turbine generator of the present invention may be provided with adhesion prevention means 60 for preventing the adhesion of ice and snow (hereinafter referred to as "icing, etc."). As an example, the adhesion prevention means 60 shown in Figures 6(a) and 6(b) includes a mounting ring 61 fixed to the power transmission shaft 20, a striking tool 62 protruding outward from the mounting ring 61, and a struck tool 63 provided on the outer structure 40.

[0037] 6(a) and 6(b) is circular, with multiple striking tools 62 protruding outward from its outer periphery. In this embodiment, the striking tools 62 include a rod-shaped portion 62a and a spherical striking ball 62b attached to the tip of the rod-shaped portion 62a. The striking tools 62 may be installed at equal or irregular intervals, and the number of striking tools to be installed can be determined depending on the size of the wind turbine generator, etc.

[0038] In this embodiment, the striking tool 62 is made of a material that contracts when the temperature rises and expands when the temperature drops, and the striking ball 62b comes into contact with the struck tool 63 when it expands, and the striking ball 62b does not come into contact with the struck tool 63 when it contracts.

[0039] By doing this, at temperatures where icing is likely to occur, the striking ball 62b comes into contact with the struck tool 63, thereby preventing icing, etc., and at temperatures where icing is not likely to occur, the striking ball 62b does not come into contact with the struck tool 63, thereby preventing the generation of noise due to striking sounds.

[0040] The struck element 63 is a component that is struck by the striking ball 62b. The struck element 63 can be made of various materials, such as rubber, that can transmit vibrations generated during striking to the outer structure 40. The struck element 63 is attached to the inner surface of the outer structure 40. A plurality of struck elements 63 are provided at intervals around the circumference of the outer structure 40.

[0041] In this embodiment, the mounting ring 61 and the striking tool 62 are installed at a position lower than the lowest wind receiving means 30, and the struck tool 63 is installed at a position lower than the lowest wind intake means 50. The mounting ring 61, the striking tool 62, and the struck tool 63 can also be installed in other locations.

[0042] The configuration of the adhesion prevention means 60 is one example, and other configurations are also possible for the adhesion prevention means 60. For example, an electric jack (not shown) can be connected to the mounting ring 61, and the mounting ring 61 and the striking tool 62 can be raised and lowered by the electric jack so that they hit the struck tool 63 when raised and do not hit the struck tool 63 when lowered.

[0043] In this case, a power supply unit (e.g., a power supply unit with a thermostat) not shown can be connected to the electric jack so that the power turns on when the temperature drops below a preset threshold (e.g., 0°C) and turns off when the temperature rises above the threshold (e.g., 0°C).

[0044] In this case, when the temperature drops below the threshold, the power is turned on and the jack is raised, causing the striking tool 62 to come into contact with the struck tool 63, and when the temperature rises above the threshold, the power is turned off and the jack is lowered, preventing the striking tool 62 from coming into contact with the struck tool 63. When this method is adopted, the power supply device can be made to operate using electricity generated by the wind turbine generator.

[0045] The provision of such adhesion prevention means 60 has the advantage of making it less likely for problems such as icing to occur even in cold regions, and making it easier to maintain power generation efficiency. However, the adhesion prevention means 60 is not an essential component and can be omitted if not required.

[0046] The wind turbine generator of the present invention can be installed not only on land but also offshore. Installation can be performed in the same manner as in the past, and when installing on soft ground, nodular foundation piles can be used as the bases for the support columns (the bases supporting the three columns in the previous example).

[0047] When installing offshore, the installation method can be selected depending on factors such as the distance to the ground at the installation site, for example, a bottom-mounted method in which the system is fixed to the seabed (ground) or a floating method in which the system is floated on the ocean.

[0048] In a wind power generation device with the above configuration, multiple wind receiving means 30 are independent, so even if one wind receiving means 30 fails, power generation can continue using the other wind receiving means 30, which has the advantage of reducing the risk of power generation being stopped.

[0049] Furthermore, since each wind receiving means 30 can be handled as a separate unit, in the event of a malfunction, only the malfunctioning wind receiving means 30 can be replaced, and the healthy (non-failed) wind receiving means 30 can continue to be used, which has the advantage of being easy to maintain and economical.

[0050] The electricity generated by the wind power generation system of the present invention can be used not only as a regular power source but also for other purposes, such as generating hydrogen by electrolyzing river or seawater.

[0051] The wind turbine generator of the present invention can be miniaturized and has a high degree of freedom in terms of installation location. Therefore, it can be installed in areas with good infrastructure conditions, and by installing a hydrogen production facility nearby, it is possible to create an environment for the accumulation of green energy. This can contribute to industrial promotion and help revitalize the region. In the future, it is expected that the wind turbine generator will be used for facility and local power generation by establishing a regional power grid.

[0052] Furthermore, unlike propeller-type wind turbines, the wind turbine of the present invention does not have a huge, exposed propeller that rotates, so it has a greater degree of freedom in terms of installation location compared to propeller-type wind turbines. For example, it can be expected to serve as a windbreak against the wind blowing over high-rise buildings, which is a problem in urban areas, while also contributing to the power supply in the area where it is installed.

[0053] The configuration of the wind turbine generator described in the above embodiment is merely an example, and the configuration of the wind turbine generator of the present invention is not limited to the configuration of the above embodiment. As an example, the following modified examples are possible.

[0054] -Modification 1 of wind receiving means- In the above embodiment, an example is given in which the wind receiving body 32 is provided only on the upper side of the turntable 31, but the wind receiving body 32 can also be provided on the bottom side of the turntable 31 in addition to the upper side.

[0055] 7 and 8(a)(b), a second wind receiving body 34 (hereinafter referred to as a "half-bowl-shaped wind receiving body") having a shape of half a substantially hemispherical (bowl-shaped) member with a recess (wind receiving body recess) 34a can be provided on the bottom side of the turntable 31 of each wind receiving means 30. Like the wing-shaped wind receiving body 32, the half-bowl-shaped wind receiving body 34 can also be made of aluminum, FRP (fiber reinforced plastic), etc.

[0056] The number of the half-bowl-shaped wind receivers 34 can be the same as or different from the number of the wing-shaped wind receivers 32 installed on the upper surface side of the rotating disk 31. If the number is different, the number can be more or less than the number of the wing-shaped wind receivers 32.

[0057] The half-bowl-shaped wind receiver 34 installed on the bottom side of the turntable 31 can be installed directly below the wing-shaped wind receiver 32 installed on the top side of the turntable 31, or can be installed at a position offset from the wing-shaped wind receiver 32.

[0058] It is desirable that the opening periphery 34b of the half-bowl-shaped wind receiver 34 narrows inward so that wind can easily enter the half-bowl-shaped wind receiver 34. The degree of narrowing can be designed as appropriate. When half-bowl-shaped wind receivers 34 are provided, it is preferable that each wind-receiving means 30 has an asymmetrical structure so that rotational forces between the half-bowl-shaped wind receivers 34 are less likely to cancel each other out.

[0059] -Modification 2 of wind receiving means- In the above embodiment and variant 1 of the wind receiving means, only the wing-shaped wind receiver 32 is provided on the upper surface of the turntable 31, but in addition to the wing-shaped wind receiver 32, the half-bowl-shaped wind receiver 34 described in variant 1 of the wind receiving means can also be provided as a second wind receiver on the upper surface of the turntable 31. One or more half-bowl-shaped wind receivers 34 can be provided on the upper surface of the turntable 31.

[0060] In this case, it is preferable to install the semi-bowl-shaped wind receiver 34 in a position where it does not interfere with the wing-shaped wind receiver 32, such as below the wing-shaped wind receiver 32 or between adjacent wing-shaped wind receivers 32. In either case, it is preferable to install the semi-bowl-shaped wind receiver 34 so that the opening is in the same direction as the curved tip end of the wing-shaped wind receiver 32, in other words, so that when wind is received from the curved tip end of the wing-shaped wind receiver 32 toward the sharp rear end, the wind will enter the semi-bowl-shaped wind receiver 34 from the opening of the semi-bowl-shaped wind receiver 34.

[0061] Even when the half-bowl-shaped wind receiving body 34 is provided on the upper surface side of the turntable 31 as in this modified example, the half-bowl-shaped wind receiving body 34 can be provided on the bottom surface side of the turntable 31 in the same manner as in modified example 1 of the wind receiving means. When the half-bowl-shaped wind receiving bodies 34 are provided on both the top and bottom surfaces of the turntable 31, they can be provided in the same position on the top and bottom, or can be provided offset from each other on the top and bottom.

[0062] -Modification 3 of the wind receiving means- In the above embodiment and variants 1 and 2 of the wind receiving means, an example is given in which the turntables 31 of the three stages of wind receiving means 30 have the same diameter (area), but the turntables 31 of the wind receiving means 30 of each stage can also have different diameters (areas).

[0063] When using turntables 31 with different areas, the area can be made to increase from the upper to the lower stage, or from the lower stage to the upper stage.

[0064] -Other configuration variations- In the above embodiment, an example is given in which the mounting ring 61, striking tool 62, and struck tool 63 are arranged in one stage, but the mounting ring 61, striking tool 62, and struck tool 63 can also be arranged in multiple stages spaced apart in the vertical direction.

[0065] In the above embodiment, the generator 10 is provided at the lower end of the power transmission shaft 20, but the generator 10 can also be provided at a location other than this. For example, as shown in Figure 9(a), it can be provided at the upper end of the power transmission shaft 20. In this case, the lower end of the power transmission shaft 20 can be supported by a bearing.

[0066] In the above embodiment, the case where one generator 10 is provided is taken as an example, but two or more generators 10 can also be provided. In this case, for example, one generator can be provided at the upper end side and one generator can be provided at the lower end side of the power transmission shaft 20 as shown in Fig. 9(b), or they can be provided at intervals in the axial direction of the power transmission shaft 20 as shown in Fig. 9(c). When two or more generators 10 are provided, one can also be provided for each wind receiving means 30.

[0067] When two or more generators 10 are installed, as shown in Figure 10, an inner support 22 serving as a core material is erected, and a cylindrical power transmission shaft 20 is placed on the outside of the inner support 22 via a bearing 23, so that each power transmission shaft 20 can rotate independently.

[0068] Each power transmission shaft 20 is provided for each generator 10, and one power transmission shaft 20 is connected to each generator 10. When each power transmission shaft 20 rotates, electricity is generated by the generator 10 to which the power transmission shaft 20 is connected.

[0069] In this case, the generator 10, the power transmission shaft 20, and the wind receiving means 30 provided on the power transmission shaft 20 function as one power generation unit 24. As a result, even if one power generation unit 24 fails, power generation can be continued by the other power generation units 24, reducing the risk of power generation being stopped.

[0070] As in the case where two or more generators 10 are provided, even when there is only one generator 10, the cylindrical power transmission shaft 20 can be arranged on the outside of the inner support 22 via a bearing 23.

[0071] Although not explained in the above embodiment and variants 1 to 3 of the wind receiving means, the power transmission shaft 20 may be provided with a speed increaser that amplifies the rotational force and transmits it to the generator 10, or a brake device that reduces the rotational speed of the turntable 31 and the power transmission shaft 20 in strong winds.

[0072] Although not explained in the above embodiment and variants 1 to 3 of the wind receiving means, when a half-bowl-shaped wind receiving body 34 is provided on both the top and bottom surfaces or one surface of the turntable 31, an opening (hereinafter referred to as a "passing opening") 35 for allowing dust and air to pass through can be formed in the part of the turntable 31 where the half-bowl-shaped wind receiving body 34 is installed (the part of the turntable 31 covered by the half-bowl-shaped wind receiving body 34), as shown in Figures 11(a) to (c).

[0073] The passage opening 35 can be provided over the entire area where each half-bowl-shaped wind-receiving body 34 is installed, or can be provided in a part of the area. When provided in a part of the area, it is preferable to provide it on the back side of half of the wind-receiving body recess 34a.

[0074] When the half-bowl-shaped wind receivers 34 are provided in the same location on both the upper and lower surfaces of the turntable 31, a common passage 35 can be provided for both half-bowl-shaped wind receivers 34 so that the wind that enters the wind receiver recess 34a of the upper half-bowl-shaped wind receiver 34 passes through the passage 35 and enters the wind receiver recess 34a of the lower half-bowl-shaped wind receiver 34, or so that the wind flows in the opposite direction.

[0075] When a vent hole 35 is provided in the area where the half-bowl-shaped wind receiver 34 is installed, the wind entering the half-bowl-shaped wind receiver 34 generates lift on the half-bowl-shaped wind receiver 34, and it is expected that the rotational force of the turntable 31 will increase.

[0076] In the above embodiment and variants 1 to 3 of the wind receiving means, a case where a plurality of wind lenses are attached to the vent 41 of the outer structure 40 as the wind intake means 50 is taken as an example, but the vent 41 can also be structured to double as the wind intake means 50. Specifically, by making the vent 41 shaped like a wind lens, the vent 41 can be structured to double as the wind intake means 50.

[0077] In the above embodiment, the striking tool 62 is made of a material that contracts when the temperature rises and expands when the temperature drops, but the struck tool 63 can also be made of the same material. In some cases, both can be made of the same material.

[0078] In the above embodiment, an example is given in which the mounting ring 61 is raised and lowered by an electric jack, but it is also possible to raise and lower the striking device 63. For example, by installing a ring-shaped base seat with the striking device 63 protruding inward on the inner surface of the outer structure 40 and raising and lowering the base seat with an electric jack, it is possible to obtain the same effect as when the mounting ring 61 is raised and lowered with an electric jack.

[0079] In the above embodiment and variations 1 to 3 of the wind-receiving means, a vertical wind turbine generator with a vertical rotation axis is used as an example, but the wind turbine generator of the present invention can also be a horizontal wind turbine generator with a horizontal rotation axis. In this case, the turntable 31 is oriented vertically.

[0080] The configuration of the above embodiment is an example, and the configuration of the wind turbine generator of the present invention is not limited to the above configuration. The configuration of the wind turbine generator of the present invention can be modified, such as by adding, replacing, or deleting, as appropriate, within the scope of achieving the intended purpose. [Industrial Applicability]

[0081] The wind turbine generator of the present invention can be used not only as an onshore wind turbine generator installed on land, but also as an offshore wind turbine generator installed offshore. It can also be used as a shipboard wind turbine generator installed on a ship (e.g., a large tanker). The wind turbine generator of the present invention can be designed to a height of less than 10 m, preferably less than 5 m, and can be suitably used as a small household power generator capable of generating approximately 1 to 10 kW. When used as a household power generator, it can be efficiently generated by installing it in a well-ventilated location (e.g., on the roof of a detached house or apartment building) or between adjacent houses. The wind turbine generator of the present invention can also be used as a power generator to secure power sources for lighting used in aquaculture, lighting and temperature control devices used in greenhouse food cultivation facilities, etc. [Explanation of symbols]

[0082] 10. Generator 20 Power transmission shaft 21 Bearings 22 Inner support 23 Bearings 24 generating units 30 Wind blowing means 31 Turntable 32 Wind receiver (wing-type wind receiver) 32a Bottom part 32b Top part 33 Bracket 34 Second wind-receiving body (half-bowl-shaped wind-receiving body) 34a Recess (wind-receiving body recess) 34b Opening periphery 35 Passage gate 40 Outer structure 41 Ventilation 50 Wind intake means 51 Small diameter 52 Large diameter mouth 53 Pipe members 54 Rectifier network 55 Large diameter 56 Small diameter 60 Anti-adhesion measures 61 Mounting ring 62 Striking tool 62a Rod-shaped part 62b Hit ball 63 Hit equipment

Claims

1. In a wind power generation device, a rotatably mounted power transmission shaft; a rotating disk connected to the power transmission shaft; One or more wind receiving bodies provided on the rotating disk; a generator connected to the power transmission shaft, The wind-receiving body has a first surface and a second surface different from the first surface, and is shaped so that when the first surface receives wind, lift is generated on the second surface side. A wind power generation device characterized by:

2. The wind turbine generator according to claim 1, The cross section of the wind-receiving body is an airfoil. A wind power generation device characterized by:

3. The wind turbine generator according to claim 1, Two or more wind-receiving bodies are provided, The two or more wind receiving bodies are provided in a positional relationship that is not point symmetrical. A wind power generation device characterized by:

4. The wind turbine generator according to claim 1, The rotating disk is provided with a second wind-receiving body having a recess for receiving wind. A wind power generation device characterized by:

5. The wind turbine generator according to claim 4, A second wind-receiving body is provided on both or either the top and bottom surfaces of the rotating disc. A wind power generation device characterized by:

6. The wind turbine generator according to claim 1, A cone-shaped outer structure is provided on the outside of the power transmission shaft, the rotating disk, the wind receiving body and the generator. A wind power generation device characterized by:

7. The wind turbine generator according to claim 6, The outer structure is provided with a wind intake means for rectifying wind and taking it into the outer structure. A wind power generation device characterized by:

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