WO2023171258A1

WO2023171258A1 - Wind power generation device

Info

Publication number: WO2023171258A1
Application number: PCT/JP2023/005011
Authority: WO
Inventors: 道夫平井
Original assignee: 道夫平井
Priority date: 2022-03-08
Filing date: 2023-02-14
Publication date: 2023-09-14
Also published as: WO2023170992A1

Abstract

The present invention provides a wind power generation device having, compared to conventional wind power generation devices, a higher degree of freedom in terms of installation location, less noise and impact on ecosystems, and lower risk of blade damage during times of strong wind. A wind power generation device according to the present invention comprises: an outer structure 40; a power transmission shaft 20 that is rotatably installed inside the outer structure 40; a wind-receiving means 30 that is provided to the power transmission shaft 20, has a wind-receiving surface, and is structured as non-symmetrical about a point; and a generator 10 that is coupled to the power transmission shaft 20.

Description

wind power generator

The present invention relates to a wind power generation device.

Recently, the effects of climate change caused by global warming are being felt all over the world. Under these circumstances, there is a need to promote the introduction of renewable energy in order to achieve zero emissions of greenhouse gases, which are a cause of global warming.

Conventionally, as a wind power generation device, a vertical axis type (vertical type) wind power generation device (Patent Document 1) is known, in which eight radial blades are provided on a rotating shaft extending in the vertical direction.

Japanese Patent Application Publication No. 2005-337245

By the way, problems have been pointed out regarding wind power generators, such as installation location problems, noise problems, impact on the ecosystem, and blade damage during strong winds, and proposals for technologies that can solve these problems are desired. ing.

The present invention was made in view of the above circumstances, and the problems to be solved are: compared to conventional wind power generators, there is a high degree of freedom in installation locations, there is less noise and impact on the ecosystem, and the blades can be used in strong winds. The purpose of the present invention is to provide a wind power generation device with a low risk of damage.

The wind power generation device of the present invention has an asymmetrical wind blowing structure including an outer structure, a power transmission shaft rotatably installed inside the outer structure, and a wind blowing surface provided on the power transmission shaft. and a generator connected to a power transmission shaft.

In the wind power generation device of the present invention having the above configuration, the wind blowing means is provided inside the outer structure, so the risk of blade damage during strong winds is lower than in conventional wind power generation devices, and noise and ecology are reduced. There is little impact on the system. Further, since the wind power generation device of the present invention has a structure that is easy to downsize, it has a high degree of freedom in installation location.

FIG. 1 is a schematic diagram showing an example of a wind power generation device of the present invention. (a) is an explanatory view showing an example of the outer structure, and (b) is an explanatory view showing another example of the outer structure. (a) is a front view showing an example of the wind power generation device of the present invention, (b) is a partially enlarged view of (a), and (c) is an explanatory view of the wind intake means shown in (b). (a) shows another example of the wind intake means, and (b) is an explanatory diagram of the state in which the wind intake means of (a) is used. (a) is a schematic diagram showing an example of an adhesion prevention means, and (b) is a plan view of the adhesion prevention means of (a). (a) is an explanatory diagram when the generator is installed on the upper end side of the power transmission shaft, (b) is an explanatory diagram when two generators are installed with an interval in the vertical direction of the power transmission shaft, (c ) is an explanatory diagram when four generators are installed at intervals in the vertical direction of the power transmission shaft. An explanatory diagram showing an example of a power transmission shaft when two or more generators are provided. An explanatory diagram showing an example in which the lengths of blades in all stages are made the same length. FIG. 3 is an explanatory diagram showing an example of a wind blowing means including a wind blowing body at the tip of an arm. Explanatory drawing which shows an example of the wind blowing means provided with the wind blowing body on the upper surface of a rotary disk. An explanatory diagram showing an example of a wind blowing means including a movable wind blower. (a) is an upper side perspective view showing an example of a wind blowing means in which wind blowers are provided on both the upper and lower surfaces of a rotary disk, and (b) is a lower side perspective view of the wind blowing means of (a). (a) is an explanatory diagram showing an example of using a plurality of wind blowing means of the same size, and (b) is an explanatory diagram showing an example of the case of using a plurality of wind blowing means of different sizes. Explanatory diagram showing another example of the power transmission shaft. FIG. 1 is a schematic diagram showing an example of a wind power generation device using flat blades. (a) is a schematic diagram showing an example of a wind power generation device equipped with an outer structure having legs and a body, and (b) is another example of a wind power generation device equipped with an outer structure having legs and a body. A schematic diagram showing.

(Embodiment)
An example of an embodiment of a wind power generation device of the present invention will be described with reference to the drawings. As an example, the wind power generation device shown in FIG. 1 is a vertical axis type (vertical type) wind power generation device, and includes a generator 10, a power transmission shaft 20, a wind blowing means 30, an outer structure 40, and a wind intake means. 50 (FIG. 3(c), FIG. 4(a), etc.) as a main component.

The generator 10 is a device (generator) that converts rotational motion into electricity. The generator 10 can be new or existing.

A power transmission shaft 20 is connected to the generator 10. The power transmission shaft 20 is a member that transmits rotational force generated by a wind blowing means 30 (described later) to the generator 10. The power transmission shaft 20 of this embodiment has a vertical column shape perpendicular to the generator 10, and its lower end side is connected to the generator 10. The upper end side of the power transmission shaft 20 is rotatably supported by a bearing 21.

The wind receiving means 30 is a member that rotates the power transmission shaft 20 by receiving wind. In this embodiment, a plurality of wind blowing means 30 are provided in a plurality of stages at intervals in the vertical direction of the power transmission shaft 20. The wind blowing means 30 at each stage is composed of a plurality of blades 31, each of which can be handled as an independent unit.

In this embodiment, the number of blades 31 constituting each wind blowing means 30 is an odd number. If an even number of blades are provided at equal intervals, when wind blows from a certain direction, the rotational force of the blades 31 that are on the same straight line in a plan view may cancel each other out, which may reduce the amount of air received.

On the other hand, by setting the number of blades 31 to an odd number, two blades 31 are not lined up on the same axis, which has the advantage that the rotational forces are less likely to cancel each other out, making it easier for the power transmission shaft 20 to rotate. There is. The odd number of blades 31 may be provided at equal or uneven intervals as long as the rotational forces do not cancel each other out.

The number of blades 31 of each wind blowing means 30 may be an even number if the structure is such that the rotational forces are unlikely to cancel each other out. For example, by setting the blades 31 at uneven intervals, even if there is an even number of blades, it is possible to make it difficult for the rotational forces to cancel each other out.

In addition, by making the shapes of the plurality of blades 31 that constitute the wind blowing means 30 different, the rotational forces cancel each other out regardless of whether the number of blades 31 is an even number or an odd number. It can be made difficult.

In short, the structure of each wind blowing means 30 composed of a plurality of blades 31 is not point symmetrical, specifically, the center of the blade 31 in the power transmission shaft 20 in the height direction and horizontal direction. If the structure of each wind blowing means 30 is asymmetrical with respect to the point of symmetry, it is possible to make it difficult for the rotational forces of the blades 31 to cancel each other out.

The blade 31 of this embodiment has a horizontal rectangular shape with a vertical wind receiving surface (vertical wind receiving surface), and a bent portion 31b is provided on the tip side of a flat base portion 31a. In this embodiment, the refraction angle of the refraction portion 31b with respect to the base portion 31a is set to 45 degrees, but this angle may be other than 45 degrees. The wind receiving surface does not need to be perpendicular, and in the case of an imaginary vertical surface, it can be provided at an angle with respect to the imaginary vertical surface.

In this embodiment, the length in the lateral direction of the blades 31 constituting the wind blowing means 30 is set to be different for each stage. Specifically, the length of the blade 31 constituting the lower wind blowing means 30 is made longer in the lateral direction than the length of the blade 31 constituting the upper wind blowing means 30.

In other words, if the dimensions of the blades 31 in the vertical direction (height direction) are constant, the upper blades 31 have a narrower wind-catching area, and the lower blades 31 have a wider wind-catching area. It is set as.

When the length of the blade 31 is set in this way, when the power transmission shaft 20 and the wind blowing means 30 are viewed from the front, they form a tree shape in which the width is wider toward the bottom and gradually narrows toward the top. In other words, it has a vertical turbine-like shape.

Note that the number of blades 31 constituting each wind blowing means 30 is not particularly limited. Further, the number of blades 31 of the wind blowing means 30 at each stage can be the same or different. When the number of blades is different, the number of blades 31 of all the wind blowing means 30 can be different, or the number of blades 31 of some of the wind blowing means 30 can be different.

Although not shown in the drawings, a stopper that prevents the wind blowing means 30 from rotating in reverse, a gear that forcibly converts reverse rotation into forward rotation, or the like may be provided as necessary.

A flow regulator 32 is provided above and below each wind blowing means 30. For convenience, FIG. 1 only shows the flow regulating fluid 32 above the uppermost wind blowing means 30 and the lower flow regulating flow 32 of the lowermost wind blowing means 30, but in this embodiment, each wind blowing means 30, flow regulators 32 are provided at various locations above the uppermost wind blowing means 30 and below the lowermost wind blowing means 30.

The flow regulator 32 adjusts the flow of the air so that it hits the vertical wind receiving surface of the blade 31 without passing upward or downward, and can be made of, for example, a disc-shaped or rectangular plate. In addition to a circular or rectangular plate, a plate of any shape such as an ellipse may be used for the flow regulator 32. Depending on the case, a partially curved plate material, a partially cut-out plate material, or the like may be used as the flow regulator 32. Moreover, the flow regulator 32 does not need to be a plate material. When a plate material is used as the flow regulator 32, as shown in FIG. 1, it can be provided in a direction intersecting the power transmission shaft 20 (for example, in a direction perpendicular to the power transmission shaft 20).

In this embodiment, one rectifier 32 is provided between each of the wind blowing means 30, but two or more rectifiers 32 may be provided between each wind blowing means 30. In addition, the flow regulator 32 can also be provided only between any of the wind blowing means 30, such as only above the uppermost wind blowing means 30 and below the lowermost wind blowing means 30.

The outer structure 40 is a member that covers the outside of the generator 10, the power transmission shaft 20, and the wind blowing means 30. The outer structure 40 is a member for preventing animals such as birds and other flying objects from colliding with the wind blowing means 30, etc., and is a member for supporting the wind intake means 50, which will be described later.

The outer structure 40 of this embodiment is a substantially triangular pyramid-shaped structure that tapers toward the upper end. The outer structure 40 may also have a pyramidal shape other than a triangular pyramid, such as a pyramidal shape or a conical shape. The outer structure 40 may also be in the shape of a truncated pyramid, such as a triangular pyramid or a cone whose top side is cut by a plane parallel to the bottom surface.

In this application, the term "pyramid shape" is a concept that includes triangular pyramid shapes, other pyramid shapes, conical shapes, etc., as well as truncated pyramid shapes whose top sides are cut by a plane parallel to the bottom surface.

When the outer structure 40 has a conical shape such as a triangular pyramid shape or a conical shape, wind can escape along the slope of the outer structure 40 as shown by the dotted line in FIG. This makes it possible to avoid wind intrusion or wind blowing, and reduce the risk of collapse or damage to the blade 31, the power transmission shaft 20, the outer structure 40, etc. This effect is particularly great when the shape of the outer structure 40 is a triangular shape (triangular pyramid shape) that is resistant to external pressure.

In this embodiment, the outer structure 40 is a mesh structure including a ventilation hole 41 through which wind passes and a plurality of truss structures so as to prevent it from collapsing or being damaged even when exposed to strong winds. The outer structure 40 of this embodiment has a truncated triangular pyramid shape by combining three pillars 40a and a mesh material. The outer structure 40 may also have a honeycomb structure.

The configuration of the outer structure 40 is merely an example, and other configurations may also be used. For example, it may be constructed by combining a plurality of elongated members in a diagonal lattice shape as shown in FIG. 2(a), or a planar member with holes as shown in FIG. 2(b). In either case, a vent 41 through which wind passes is provided.

The material of the outer structure 40 is not particularly limited, but when a wind intake means 50 described below is provided, it is preferably made of a material that has enough strength and hardness to support the wind intake means 50. Further, when providing an adhesion prevention means 60 to be described later, the outer structure 40 is preferably made of a material that vibrates when struck by the striking tool 62.

Note that if it is desired to increase the height of the wind blowing means 30, the outer structure 40 can be provided with a configuration corresponding to leg portions 42 (see FIGS. 16(a) and 16(b)), which will be described later. When the outer structure 40 includes a support 40a, the support 40a can be used as the leg 42 in addition to providing a separate structure corresponding to the leg 42.

In this embodiment, the outer structure 40 is provided with a wind intake means 50 for introducing wind into its interior. The wind intake means 50 is a turbo device with a function of increasing wind speed. As an example, the wind intake means 50 shown in FIGS. 3(a) to 3(c) are so-called wind lens-shaped structures, and a plurality of them are attached to the outer structure 40.

As shown in FIG. 3(c), the wind intake means 50 of this embodiment has a circular ring shape, and the peripheral edge on one side is shaped like a trumpet. Due to its structure, this wind intake means 50 takes in wind from a small-diameter opening (hereinafter referred to as "small-diameter opening") 51 and discharges it from a large-diameter opening (hereinafter referred to as "large-diameter opening") 52. Wind speed is increased.

As shown in FIG. 3(a), a plurality of wind intake means 50 are attached to the outer structure 40. In this embodiment, the blades 31 of the outer structure 40 are provided at the same height as the inner wind blowing means 30 so that the wind can be sent intensively to the blades 31 constituting the wind blowing means 30 of each stage. ing.

A plurality of wind intake means 50 are provided along the circumferential direction of each stage. The wind intake means 50 having this structure is installed such that the small diameter opening 51 faces outside and the large diameter opening 52 faces inside.

The wind intake means 50 shown here is just an example, and the wind intake means 50 may be of a shape other than a wind lens. For example, as shown in FIG. 4(a), a tube member 53 having a rectifying network 54 inside it may be used. The wind intake means 50 having this structure is attached so that the large diameter opening 55 faces outward and the small diameter opening 56 faces inward, as shown in FIG. 4(b).

By providing such a wind intake means 50, the introduced wind can be rectified by the rectifying net 54 and direct wind can be applied to the blades 31. Generally, the blades 31 do not rotate well in turbulence, but the blades 31 can be rotated smoothly by applying rectified direct wind.

Note that the direction in which the wind intake means 50 is installed is not particularly limited, but from the viewpoint of minimizing the influence when turbulence occurs, each wind intake means 50 is installed in a direction parallel to the rotational direction of the wind blowing means 30. It is preferable to install

However, the wind intake means 50 is not an essential configuration, and can be omitted if unnecessary. For example, the wind intake means 50 can be omitted if it is installed in a location where sufficient wind power can be expected to generate electricity even without the wind intake means 50.

As shown in FIGS. 5(a) and 5(b), the wind power generation device 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 FIGS. 5(a) and 5(b) includes an attachment ring 61 fixed to the power transmission shaft 20, a striking tool 62 protruding outward from the attachment ring 61, and an outer structure. A hit tool 63 provided at 40 is provided.

The mounting ring 61 shown in FIGS. 5(a) and 5(b) has a circular shape, and has a plurality of striking tools 62 protruding outward from its outer periphery. The hitting tool 62 of this embodiment includes a rod-like portion 62a and a spherical hitting ball 62b provided at the tip of the rod-like portion 62a. The striking tools 62 may be installed at equal or unequal intervals, and the number of hitting tools 62 may be determined depending on the size of the wind power generator and the like.

In this embodiment, the hitting tool 62 is made of a material that contracts when the temperature rises and expands when the temperature drops, and when expanding, the hitting ball 62b comes into contact with the hit tool 63, and when contracting, the hitting ball 62b comes into contact with the hit tool 63. It is arranged so that it does not come into contact with the tool 63.

By doing so, the hitting ball 62b can contact the hit tool 63 to prevent icing, etc., at temperatures where icing etc. are likely to occur; The ball 62b does not come into contact with the hit tool 63, and it is possible to prevent the occurrence of noise due to the impact sound.

The hit tool 63 is a member that is hit by the hitting ball 62b. The hit tool 63 can be made of various materials, such as a rubber material, that can transmit vibrations generated during hitting to the outer structure 40. The hit tool 63 is attached to the inner surface of the outer structure 40. A plurality of hit tools 63 are provided at intervals in the circumferential direction of the outer structure 40 .

In this embodiment, the attachment ring 61 and the striking tool 62 are installed at a lower position than the wind blowing means 30 at the lowest stage, and the hit tool 63 is installed at a position lower than the wind intake means 50 at the lowest stage. . The attachment ring 61, the striking tool 62, and the hit tool 63 can also be provided at other locations.

The structure of the adhesion prevention means 60 is just an example, and the adhesion prevention means 60 can also have a structure other than this. For example, an electric jack (not shown) may be connected to the mounting ring 61, and the electric jack may be used to raise and lower the mounting ring 61 and the striking tool 62, so that they hit the struck tool 63 when rising and do not hit the struck tool 63 when descending. I can do it.

In this case, a power supply device (for example, a power supply device with a thermostat) (not shown) is connected to the electric jack, and the power is turned on when the temperature drops below a preset threshold (for example, 0 degrees Celsius). For example, the power can be turned off when the temperature rises above 0°C.

In this case, when the temperature drops below the threshold, the power is turned on and the jack is raised, and the striking tool 62 comes into contact with the hit tool 63, and when the temperature rises above the threshold, the power is turned off and the jack is lowered. It is possible to prevent the hitting tool 62 from coming into contact with the hit tool 63. Note that when this method is adopted, the power supply device can be operated using electricity generated by the wind power generator.

Providing such an adhesion prevention means 60 has the advantage that problems such as icing are less likely to occur even in cold regions, and power generation efficiency is easily maintained. However, the adhesion prevention means 60 is not an essential configuration and can be omitted if unnecessary.

The wind power generation device of the present invention can be installed not only on land but also on the ocean. Installation can be done in the same manner as before, and when installing on soft ground, knotted foundation piles are used for the pedestal of the pillar 40a (in the previous example, the pedestal supporting the three pillars 40a). be able to.

When installing on the ocean, the installation method can be selected from, for example, a landing method that is fixed to the seabed (ground) and a floating method that is floated on the ocean, depending on the distance to the ground at the installation location.

In the wind power generation device having the above configuration, since the plurality of wind blowing means 30 are independent, even if the wind blowing means 30 at a certain stage breaks down, power generation can be continued using the other wind blowing means 30. This has the advantage of reducing the risk of power generation outage.

In addition, since each wind blowing means 30 can be handled as an individual unit, in the event of a failure, only the broken wind blowing means 30 can be replaced, and healthy (non-faulty) wind blowing means 30 can continue to be used as is. It has the advantage of being excellent in maintainability and economy.

Note that the electricity generated by the wind power generation device of the present invention can not only be used as a normal power source, but also for other purposes. For example, it is possible to generate hydrogen by electrolyzing river or seawater.

The wind power generation device of the present invention has a configuration that can be miniaturized and has a high degree of freedom in installation location, so it can be installed in an area with good infrastructure conditions and a hydrogen production facility nearby, creating an environment where green energy is concentrated. It can be arranged. This will not only contribute to the promotion of industry, but also help revitalize the region. In the future, it is expected that a regional power grid will be established and used for facilities and regional power.

In addition, unlike propeller-type wind power generators, the wind power generator of the present invention does not have a huge propeller that rotates exposed, so it has more freedom in installation location than propeller-type wind power generators. expensive. For example, it can be expected to act as a windbreak against high-rise buildings, which is a problem in urban centers, and at the same time contribute to the power supply in the area where it is installed.

The configuration of the wind power generation device described in the above embodiment is an example, and the configuration of the wind power generation device of the present invention is not limited to the structure of the above embodiment. As an example, the following modification may be considered.

-Variation example 1 of wind blowing means-
In the embodiment described above, the length of the blades 31 in the lateral direction that constitute the wind blowing means 30 is different for each stage, but as shown in FIG. 8, the length of the blades 31 is the same in all stages. You can also do that.

In some cases, the blades 31 in multiple stages may be the same length, such as the blades 31 in the top and second stages are the same length, the blades 31 in the third and fourth stages are the same length, and the blades 31 in the other stages or The multiple stages of blades 31 can also have different lengths.

-Variation example 2 of wind blowing means-
In the embodiment described above, a case where a plurality of blades 31 are used as the wind blowing means 30 is exemplified, but the wind blowing means 30 can also have a structure other than this. For example, as shown in FIG. 9, it is possible to have a structure in which an approximately hemispherical (bowl-shaped) wind receiving body 31d is provided at the tip of an arm 31c.

In the example shown in FIG. 9, a half-pipe-shaped member with a recess (arm recess) 31e is used as the arm 31c. By using the arm 31c provided with the arm recess 31e, there is an advantage that the wind receiving area becomes large and the wind is easily received.

When a half-pipe-shaped member is used as the arm 31c, the opening periphery (arm opening periphery) 31f of the arm recess 31e is tapered inward so that wind can easily enter the arm recess 31e. The degree of narrowing can be designed as appropriate. The arm 31c can be made of a perfectly round pipe, a solid shaft material, or the like, in addition to a half-pipe member.

The wind blower 31d shown in FIG. 9 is a substantially hemispherical (bowl-shaped) hollow member that has a recess (wind blower recess) 31g on the arm recess 31e side. The opening periphery 31h of the wind receiving body 31d (wind receiving body opening periphery) is configured to narrow inward so that the wind can easily enter into the wind receiving body 31d. The degree of narrowing can be designed as appropriate. The structure of the wind receiving body 31d may be other than hemispherical.

For convenience of explanation, only one stage of the wind blowing means 30 is shown in FIG. 30 can be provided in multiple stages.

-Variation example 3 of wind blowing means-
The wind receiving means 30 includes one or more (in the illustrated example, a plurality of) wind receiving bodies 31j each having a wind receiving surface on the upper surface of a disc-shaped or rectangular rotary disk 31i as shown in FIG. You can also use something. In addition to a circular or rectangular plate material, a plate material having an arbitrary shape such as an elliptical shape can also be used for the rotary disk 31i. In some cases, a partially curved plate material, a partially cut-out plate material, or the like may be used as the rotary disk 31i. Further, the rotary disk 31i does not have to be a plate material.

The wind blower 31j shown in FIG. 10 is a half-shaped member that is substantially hemispherical (bowl-shaped) and includes a concave portion (blow body concavity) 31k. The shape of the wind blower 31j may be other than this, and may be approximately hemispherical (bowl-shaped) similar to the wind blower 31d in FIG. 9.

It is desirable that the opening periphery (periphery of the wind receiving body opening) 31m of the wind receiving body 31j narrows inward so that the wind can easily enter the wind receiving body 31j. The degree of narrowing can be designed as appropriate. A curved plate with a curved surface, a flat plate without a curve (see FIG. 11), etc. can also be used as the wind receiving body 31j.

Even when using the wind-blowing means 30 having the wind-blowing bodies 31j having such a structure, it is preferable that each wind-blowing means 30 has an asymmetrical structure so that the rotational forces of the wind-blowing bodies 31j are unlikely to cancel each other out. preferable.

As shown in FIG. 11, the wind receiving body 31j is movable so that its posture changes between an upright state (hereinafter referred to as "upright state") and a laid down state (hereinafter referred to as "lowered state") depending on the direction in which it receives the wind. It can also have the structure of Eq.

Specifically, when the wind receiving body 31j receives wind on one surface (hereinafter referred to as the "first surface") side, the wind receiving body 31j stands up, and on the other surface (hereinafter referred to as the "second surface") side. The wind receiving body 31j can be made to lie down when exposed to wind.

Furthermore, although the wind receiving body 31j is provided on the upper surface of the rotating disk 31i as an example, the wind receiving object 31j may also be provided on the lower surface of the rotating disk 31i. Depending on the case, they may be provided on both the upper and lower surfaces of the rotary disk 31i, as shown in FIGS. 12(a) and 12(b). When provided on both the upper and lower surfaces, it can be provided at the same position on the upper and lower sides, or it can be provided at different positions on the upper and lower sides.

When providing multiple stages of the wind blowing means 30, rotating disks 31i having the same diameter (area) as shown in FIG. 13(a) may be used, or rotating disks 31i having different diameters (areas) as shown in FIG. 13(b) may be used. You can also use The same applies to the case where the wind receiving bodies 31j are provided on both the upper and lower surfaces of the rotary disk 31i.

When using items with different areas, the area should be larger from the upper side to the lower side as shown in Figure 13(b), and the area should be wider from the lower side to the upper side. You can also make it so.

When using a rotary disk 31i equipped with a plurality of wind blowing bodies 31j as the wind blowing means 30, the rotary disk 31i is fixed to the power transmission shaft 20. The wind blowing means 30 includes, for example, as shown in FIG. 14, a cylindrical power transmission shaft 20 is disposed outside the inner support 22 via a bearing 23, and a rotary disk 31i is fixed to the power transmission shaft 20. I can do it.

In this case, the rotational force by the rotary disk 31i is transmitted to the generator 10 via the power transmission shaft 20, and power generation is performed. The method of fixing the wind blowing means 30 to the power transmission shaft 20 may be other than this. For example, the rotating disk 31i may be fixed to the power transmitting shaft 20 with the configuration shown in FIG. It is also possible to make the transmission shaft 20 rotate.

Depending on its shape, the rotary disk 31i of the wind blowing means 30 described in the third modification of the wind blowing means can perform the function of adjusting the flow of wind like the flow regulator 32.

-Variation example 4 of wind blowing means-
In the above embodiment, as shown in FIG. 1, the blade 31 constituting the wind blowing means 30 has a shape in which the bent part 31b is provided on the tip side of the flat base part 31a. As the blade 31 of the means 30, a flat member without a bent portion as shown in FIG. 15 can also be used.

When using a flat member without a bent portion as the blade 31, each blade 31 is preferably installed so as to be oblique to the vertical axis of the power transmission shaft 20. When each blade 31 is installed obliquely to the vertical axis of the power transmission shaft 20, lift and drag are generated when the lower surface of the blade 31 receives wind. As a result, a directional force generated by the combination of lift and drag acts on the blade 31, and the rotation of the blade 31 is accelerated by this force.

However, the installation angle of the blade 31 with respect to the power transmission shaft 20 is not limited, and in some cases, the upper and lower sides of the blade 31 may be parallel to the vertical axis of the power transmission shaft 20. It can also be placed on a vertical axis.

- Variation of fluid regulation -
In the embodiment described above, as an example, the flow regulator 32 is a disk-shaped, square-shaped, elliptical, or other various shaped plate material, but the flow regulator 32 can also have a structure other than this. For example, the wind blowing means 30 described in Modification 3 of the wind blowing means, specifically, one or more wind blowing bodies may be installed on both or either of the upper surface and the lower surface of the circular or rectangular rotary plate 31i. 31j can be used as the flow regulator 32. The specific configuration of the flow regulator 32 in this case is the same as that of the wind blowing means 30 of Modification 3 of the wind blowing means, so the description thereof will be omitted here.

-Other configuration variations-
In the embodiment described above, the mounting ring 61, the striking tool 62, and the hit tool 63 are provided in one stage as an example, but the mounting ring 61, the hitting tool 62, and the hit tool 63 are arranged in multiple stages at intervals in the vertical direction. It is also possible to provide one.

In the embodiment described above, the case where the generator 10 is provided at the lower end of the power transmission shaft 20 is taken as an example, but the generator 10 can also be provided at a location other than this. For example, it can also be provided at the upper end of the power transmission shaft 20 as shown in FIG. 6(a). In this case, the lower end side of the power transmission shaft 20 may be supported by a bearing.

In the embodiment, the case where there is one generator 10 is taken as an example, but two or more generators 10 can also be provided. In this case, for example, one may be provided at the upper and lower ends of the power transmission shaft 20 as shown in FIG. 6(b), or one may be provided at intervals in the axial direction of the power transmission shaft 20 as shown in FIG. 6(c). It can be set up. When two or more generators 10 are provided, one can be provided for each wind blowing means 30.

When two or more generators 10 are provided, as shown in FIG. The provided cylindrical power transmission shafts 20 can be disposed via bearings 23 so that each power transmission shaft 20 can be rotated individually.

The inner support 22 is fixed between the bearing 21 at the upper end (FIG. 6(c)) and the generator 10 at the lowermost stage so as not to rotate. One 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, power is generated by the generator 10 to which the power transmission shaft 20 is connected.

In this case, the generator 10, the power transmission shaft 20, and the wind blowing means 30 provided on the power transmission shaft 20 function as one power generation unit 24. Thereby, even if one power generation unit 24 fails, power generation can be continued by the other power generation units 24, and the risk of power generation stoppage can be reduced.

In addition, when there is one generator 10, a solid pillar material may be used as the power transmission shaft 20, but as in the case where two or more generators 10 are provided, it is arranged on the outside of the inner pillar 22 via a bearing 23. A cylindrical one can also be used.

Although the description is omitted in the embodiment, the power transmission shaft 20 includes a speed increaser that amplifies the rotational force and transmits it to the generator 10, and a speed increaser that increases the rotational speed of the blades 31 and the power transmission shaft 20 during strong winds. It is also possible to provide a brake device or the like to suppress the damage.

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

In the embodiment described above, the mounting ring 61 is raised and lowered using an electric jack, but the hit tool 63 can also be raised and lowered. For example, by installing a ring-shaped base seat on which the hit tool 63 projects inward on the inner surface of the outer structure 40 and raising and lowering the base seat with an electric jack, the mounting ring 61 can be moved electrically. You can obtain the same effect as when lifting and lowering with a jack.

In the embodiment described above, the case where the outer structure 40 is cone-shaped is taken as an example, but the outer structure 40 is made into a cylindrical shape (cylindrical in the illustrated example) as shown in FIGS. 16(a) and 16(b). You can also do that.

The outer structure 40 shown in FIGS. 16(a) and 16(b) includes a plurality of legs 42 and a bottomed cylindrical body 43 supported by the legs 42. Similar to the outer structure 40 of the above embodiment, the body portion 43 of the outer structure 40 of FIGS. 16(a) and 16(b) also has a mesh structure including a ventilation hole 41 through which wind passes and a plurality of truss structures or honeycomb structures. It can be a body. The body portion 43 may have a rectangular tube shape or the like.

A fence or the like may be installed on the roof of a building, and if the wind receiving means 30 is located low, it may be difficult to catch the wind. On the other hand, by providing the outer structure 40 with the legs 42, the height of the wind blowing means 30 is increased, which has the advantage of making it easier for the wind blowing means 30 to receive wind.

Furthermore, by making the outer structure 40 into a cylindrical shape such as a cylinder or a rectangular tube, a dead space is less likely to occur than when the outer structure 40 is cone-shaped, and the number of pieces to be installed can be increased. There are other benefits.

Similar to the embodiment described above, a generator 10, a power transmission shaft 20, and a wind blowing means 30 are provided inside the outer structure 40. Since the structures of the generator 10 and the power transmission shaft 20 are the same as those in the embodiment described above, the explanation thereof will be omitted, and here, the wind blowing means 30 which is different from the embodiment described above will be explained.

The basic configuration of the wind blowing means 30 in FIG. 16(a) is the same as the wind blowing means 30 shown in FIG. The difference from the wind blowing means 30 shown in FIG. 1 is that the number of stages of the wind blowing means 30 is three, and that the blades 31 of the wind blowing means 30 have the same length in all stages.

The basic configuration of the wind blowing means 30 in FIG. 16(b) is the same as the wind blowing means 30 shown in FIG. 15. The difference from the wind blowing means 30 shown in FIG. 15 is that the blades 31 of the wind blowing means 30 have the same length at all stages.

The examples shown in FIGS. 16(a) and 16(b) are merely examples, and various modifications can be made. For example, the wind blowing means 30 can have more or less than three stages, and the length of the blades 31 can be different for each stage.

A wind power generation device with a structure as shown in FIGS. 16(a) and 16(b) can be designed compactly and can be installed in places where installation space is limited, such as around detached houses or on the rooftops of condominiums. This makes it possible for small communities, such as individual households and neighborhood associations, to produce electricity in-house, making it a useful preparation in the event of a power outage, such as in the event of a disaster.

In the embodiment, a vertical wind power generation device with a vertical axis of rotation is used as an example, but the wind power generation device of the present application can also be a horizontal type wind power generation device with a horizontal axis of rotation. Note that in the case of a horizontal wind power generation device, the flow regulator 32 is located on the side (horizontally outer side) of the wind blowing means 30.

The configuration of the embodiment described above is an example, and the configuration of the wind power generator of the present invention is not limited to the configuration described above. The configuration of the wind power generation device of the present invention can be appropriately modified such as additions, replacements, deletions, etc. within a range that can achieve the intended purpose.

The wind power generation device of the present invention can be used not only as an onshore wind power generation device installed on land, but also as an offshore wind power generation device installed on the ocean.

10 Generator 20 Power transmission shaft 21 Bearing 22 Inner support 23 Bearing 24 Power generation unit 30 Wind blowing means 31 Blade

31a Base part

31b Bent part 31c Arm

31d Wind blower 31e Recessed part (arm recessed part)
31f Opening periphery (arm opening periphery)
31g recess (wind receiving body recess)
31h Opening periphery (airbrush opening periphery)
31i Rotating disk 31j Wind receiving element 31k Recess (wind receiving element recess)
31m Opening periphery (wind receiving body opening periphery)
32 Flow regulation 40 Outer structure 40a Strut 41 Vent 42 Legs 43 Body 50 Wind intake means 51 Small-diameter port 52 Large-diameter port 53 Pipe member 54 Straightening net 55 Large-diameter port 56 Small-diameter port 60 Adhesion prevention means 61 Mounting ring 62 Hitting tool 62a Rod-shaped part 62b Hitting ball 63 Hitted tool

Claims

In wind power generation equipment,
an outer structure;
a power transmission shaft rotatably installed inside the outer structure;
a wind blowing means having an asymmetrical structure and having a wind blowing surface provided on the power transmission shaft;
comprising a generator connected to the power transmission shaft;
A wind power generation device characterized by:
The wind power generation device according to claim 1,
The wind blowing means includes a plurality of blades each having a wind blowing surface.
A wind power generation device characterized by:
The wind power generation device according to claim 2,
The blades are installed at an angle to the vertical axis of the power transmission shaft,
A wind power generation device characterized by:
The wind power generation device according to claim 2,
Multiple blades are installed on the power transmission shaft at uneven intervals,
A wind power generation device characterized by:
The wind power generation device according to claim 1,
The wind blowing means includes an odd number of blades each having a wind blowing surface.
A wind power generation device characterized by:
The wind power generation device according to claim 1,
Multiple wind blowing means are provided on the power transmission shaft,
A wind power generation device characterized by:
The wind power generation device according to claim 1,
Equipped with a flow regulator that regulates the flow of air taken into the outer structure.
A wind power generation device characterized by:
The wind power generation device according to claim 7,
Multiple wind blowing means are provided on the power transmission shaft,
A flow regulator is provided above and/or below one or more wind blowing means,
A wind power generation device characterized by:
The wind power generation device according to claim 7,
The flow regulator is equipped with a rotatable rotary disk and one or more wind receiving bodies provided on the rotary disk.
A wind power generation device characterized by:
The wind power generation device according to claim 1,
The wind blowing means includes a rotatable rotary disk and one or more wind blowing bodies provided on the rotary disk.
A wind power generation device characterized by:
The wind power generation device according to claim 1,
The wind blowing means includes an arm and a wind blowing body provided at the tip of the arm.
A wind power generation device characterized by:
The wind power generation device according to claim 11,
The arm is equipped with an arm recess,
The wind body is equipped with a wind body recess,
A wind power generation device characterized by:
The wind power generation device according to any one of claims 1 to 12,
The outer structure is provided with a wind intake means for increasing the wind speed and drawing it into the outer structure.
A wind power generation device characterized by: