Portable type wind turbine device

Abstract

To provide a portable wind turbine device that has stability and can be easily assembled at an installation place.SOLUTION: A portable wind turbine device comprises a wind turbine part, a base part and a pillar part. The wind turbine part supports a wind turbine. The pillar part is composed up of a plurality of pillars. The upper end parts of the plurality of pillars are connected to an upper connection part of the wind turbine part. The lower end parts of the plurality of pillars are connected to a lower connection part of the base part. In a base part, a foundation box on which a weight can be installed is arranged outside an area sectioned by the plurality of lower connection parts.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] Patent Document 1 describes a portable device that can be moved by a vehicle equipped with a wind power generating device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-129902 Summary of the Invention [Problem to be solved by the invention]

[0004] The portable device disclosed in Patent Document 1 is a device that can be moved by an electric vehicle or drone, but it is a large structure with a top wall, bottom wall and peripheral walls, and is not designed to be assembled at the installation site.

[0005] SUMMARY OF THE PRESENT EMBODIMENTS An object of the present invention is to provide a portable wind turbine device that is stable and easy to assemble at the installation site. [Means for solving the problem]

[0006] The portable wind turbine device comprises a wind turbine section, a base section, and a pillar section, the wind turbine section supports the wind turbine, the pillar section consists of a main pillar and a number of pillars, the upper ends of the number of pillars are connected to an upper connection section of the wind turbine section and the lower ends of the number of pillars are connected to a lower connection section of the base section, and the base section has a foundation box on which a weight can be installed outside the range defined by the number of lower connection sections. Effect of the Invention

[0007] According to the present invention, an effect is achieved in that the portable wind turbine device can be easily assembled on-site. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is an overall perspective view showing an example of a portable wind turbine device used in the present invention. [Diagram 2] FIG. 1 is a perspective view showing an example of a wind turbine unit 100 of a portable wind turbine device used in the present invention. [Diagram 3] FIG. 2 is a perspective view of a base portion 200 of the portable wind turbine device used in the present invention. [Figure 4] FIG. 2 is a perspective view of the portable wind turbine device used in the present invention with a portion of the upper plate 212 of the base portion 200 removed. [Diagram 5] FIG. 2 is a plan view from below of the portable wind turbine device. [Figure 6] FIG. 2 is a top plan view of the portable wind turbine device. [Figure 7] FIG. 1 is a diagram showing an example of a wind turbine 10 used in the portable wind turbine device of the present invention. [Figure 8] FIG. 1 is an exploded view of an example of a wind turbine 10 used in the portable wind turbine device of the present invention. [Figure 9] FIG. 11 is a side view of a portable wind turbine device according to another embodiment. [Figure 10] FIG. 11 is a side view of a portable wind turbine device according to another embodiment. [Figure 11] FIG. 11 is a side view of a portable wind turbine device according to another embodiment. [Figure 12] FIG. 11 is a perspective view of a portable wind turbine device according to another embodiment. [Figure 13] 1 is a schematic cross-sectional view of a main pillar 310 having a power generating unit 20 mounted on top of a brake 2 inside. [Figure 14] 1 is a schematic cross-sectional view of a main pillar 310 having a power generating unit 20 mounted inside and below a brake 2. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] (First embodiment) As shown in Fig. 1, the portable wind turbine device is composed of at least a wind turbine unit 100, a base unit 200, and a column unit 300 connecting the wind turbine unit 100 and the base unit 200. Here, the term "portable wind turbine device" refers to a wind turbine device that is not installed in a fixed location, but can be transported in a freight vehicle or the like either assembled as a wind turbine device or in an unassembled state, and can function as a wind turbine device at any location. Each part will be explained in order below.

[0010] (Windmill Club 100)

[0011] A specific embodiment of the wind turbine unit 100 of the present invention will be described below. The embodiment is merely an example, and the present invention is not limited to this example. The type of wind turbine 10 can be selected from a horizontal axis wind turbine and a vertical axis wind turbine, but it is preferable to select a vertical axis wind turbine, which does not require directional control.

[0012] In the following embodiment, a vertical axis drag type wind power generator using a drag type turbine device will be described as one application example of the wind turbine unit 100. It will be easily understood by those skilled in the art that the use of the portable wind turbine device is not limited to a generator and can be used for other purposes.

[0013] The wind turbine section 100 is made up of a wind turbine 10 and a frame material 110 configured to surround the wind turbine 10. The wind turbine section 100 also includes a power generation unit 20, and preferably functions as a wind power generator by utilizing the rotational force of the wind turbine, but the rotational force of the wind turbine can also be used for other purposes.

[0014] FIG. 7 shows a windmill 10 functioning as a drag-type wind turbine. The drag-type wind turbine functions as a vertical-axis drag-type wind generator in combination with a power generation unit 20. The vertical-axis drag-type wind generator includes a support shaft 3 rotatably supported by a main pole 320, a plurality of support members 4 fixed to the support shaft 3 at a predetermined interval L1 with respect to the axial direction Da of the support shaft 3, and a plurality of pressure-receiving members 5 supported by the plurality of support members 4, which are arranged around the support shaft 3 along the axial direction Da and spaced apart from each other in the radial direction of the support shaft 3. The vertical-axis drag-type wind generator rotates the support shaft 3 in the traveling direction (clockwise in this embodiment) by the pressure-receiving members 5 receiving wind pressure (fluid pressure) due to wind (air flow) flowing from a predetermined direction, and functions as a drag-type wind turbine.

[0015] Each component of the vertical axis drag type wind power generator (the main pole 320, the support shaft 3, the support member 4, the pressure-receiving member 5) is made of, for example, metal materials (including alloys) such as aluminum, stainless steel, titanium, and steel, fiber-reinforced resin materials such as carbon fiber reinforced resin and glass fiber reinforced resin, resin materials such as polycarbonate and polyvinyl chloride, or composite materials of these. Each component may be made by appropriately combining various materials such as those mentioned above, and for example, each component may be made of a different material, or some or all of the components may be made of a common material.

[0016] In this embodiment, as shown in FIG. 7, a vertical axis resistance type wind turbine generator is described which includes four support members 4 as the multiple support members 4, and a pair of pressure-receiving members 5 which are arranged symmetrically with respect to the support axis 3 between each of the four support members 4 as the multiple pressure-receiving members 5, i.e., a total of six pressure-receiving members 5.

[0017] The main column 320 is preferably a cylindrical housing arranged coaxially with the support shaft 3. The cylindrical shape has the effect of reducing air resistance, that is, reducing wind resistance. The main column 320 supports the support shaft 3 via a bearing unit 6 inside, and may also accommodate a power generation unit 20 and a brake 22 that convert rotational energy generated when the support shaft 3 rotates into electrical energy. The power generation unit 20 and the brake 22 may be connected to the support shaft 3 via a suitable coupling. The power generation unit 20 and the brake 22 may be provided in the upper part of the wind turbine section 100 or in the lower part of the wind turbine section 100. The power generation unit 20 may also have the function of a bearing unit. As an example, the brake 22 may be provided in the upper part of the wind turbine section 100, and the power generation unit 20 may be provided in the lower part of the wind turbine section 100. Providing the power generating unit 20 and the brake 22 inside the main pole 320 makes it less susceptible to the effects of wind and rain, and providing the power generating unit 20 and the brake 22 in the wind turbine section has the effect of making maintenance easier. Figure 13 shows an example in which the brake 22 is provided on the lower part of the power generating unit 20 inside the main pole 320, and Figure 14 shows an example in which the brake 22 is provided on the upper part of the power generating unit 20 inside the main pole 320.

[0018] The power generating unit 20 may be, for example, an outer rotor type generator or an inner rotor type generator. The support shaft 3 and the power generating unit 20 may be directly connected to each other or may be connected to each other via a gearbox.

[0019] The support shaft 3 is composed of a cylindrical or columnar shaft member, and is supported around the central rotation axis O1 by the power generation unit 20 or the bearing unit 6. The support shaft 3 may be composed of a single shaft member, or may be composed of multiple (in this embodiment, three) connected shaft members having a length approximately equal to the interval L1.

[0020] Each of the multiple support members 4 is, for example, made of a flat plate having a predetermined shape in a plan view, and is fixed to the support shaft 3 by any fixing method (welding, adhesive, screw fixing, press fitting, rivet, pin connection, joint, etc.) so that the support shaft 3 penetrates near the center of each of the support members 4. In this case, each of the multiple support members 4 is fixed to the support shaft 3 via a connecting and fixing member formed, for example, in a ring shape or flange shape. Also, each of the multiple support members 4 is fixed to a pair of pressure-receiving members 5 arranged therebetween by any fixing method.

[0021] In addition, among the multiple support members 4, at least the support members 4 arranged at both ends need to be fixed to the support shaft 3 via the connecting and fixing members 30, and some or all of the intermediate support members 4 arranged between both ends may or may not be fixed to the support shaft 3 via the connecting and fixing members 30. In this case, the intermediate support members 4 that are not fixed to the support shaft 3 connect the pressure-receiving members 5 to each other in the axial direction Da and function as connecting and reinforcing members that reinforce the pressure-receiving members 5. For example, the support shaft 3 may pass through a through hole formed in the support member 4, or a connecting elastic member formed in a ring shape of an elastic material such as rubber may be arranged to close the gap between the support shaft 3 and the through hole of the support member 4.

[0022] Each of the multiple support members 4 has a planar shape, when viewed in a plane perpendicular to the axial direction Da, that includes a pair of outer wall surface contour portions 40 formed along the outer wall surface portions 50 respectively possessed by the pair of pressure-receiving members 5, and a pair of linear contour portions 41 formed so as to connect the pair of outer wall surface contour portions 40 in a straight line.

[0023] Each of the pair of pressure-receiving members 5 has an outer wall surface portion 50, an intermediate wall surface portion 51, and an inner wall surface portion 52 as wall surface portions 50-52 extending between an outer end 53 disposed radially outward in a plan view perpendicular to the axial direction Da, and an inner end 54 disposed radially inward of the outer end 53 on the opposite side of the outer end 53 with respect to the support shaft 3, and also has an outer boundary portion 55 disposed at the boundary portion between the outer wall surface portion 50 and the intermediate wall surface portion 51, and an inner boundary portion 56 disposed at the boundary portion between the intermediate wall surface portion 51 and the inner wall surface portion 52. Each of the pair of pressure-receiving members 5 also has an outer mounting portion 57, an intermediate mounting portion 58, and an inner mounting portion 59 as mounting portions 57-59 for mounting both ends of the pressure-receiving member 5 in the axial direction Da to the support member 4, respectively.

[0024] The outer wall surface portion 50 is a wall surface portion that is extended from the outer end 53 toward the traveling direction side and the support shaft 3, and is formed in a convex shape that bulges outward in the radial direction. The outer wall surface portion 50 may have a convex shape that does not obstruct the flow of air, for example, a curved shape in a plan view that is a circular arc, an elliptical arc, or other curved line, a polygonal shape in a plan view that is a polygon with an obtuse interior angle, or a combination of a curved shape and a polygonal shape. When the outer wall surface portion 50 is a curved shape of a circular arc, the central angle of the arc is preferably, for example, in the range of 75 degrees to 135 degrees, and more preferably in the range of 90 degrees to 120 degrees. When the outer wall surface portion 50 has a plan view shape other than a circular arc, it may be extended in a range similar to that of a circular arc.

[0025] The intermediate wall surface portion 51 is a wall surface portion that extends from the outer wall surface portion 50 via the outer boundary portion 55 toward the traveling direction side Dt and the support shaft 3, and is formed in a convex or flat shape that gradually bulges outward in the radial direction from the outer wall surface portion 50. The intermediate wall surface portion 51 may have a different planar shape from the outer wall surface portion 50. For example, the convex shape may be a curved shape whose planar shape is a circular arc, an elliptical arc, or other curved line, or a polygonal shape whose planar shape is a polygon with obtuse interior angles, or a combination of a curved shape and a polygonal shape. The intermediate wall surface portion 51 may also be a flat shape whose planar shape is a straight line. When the planar shape of the outer wall surface portion 50 is a curved surface such as a circular or elliptical arc, the intermediate wall surface portion 51 may be planar and disposed on a tangent line extended from the end portion of the outer wall surface portion 50 on the outer boundary portion 55 side, and the outer boundary portion 55 may be located at the boundary between the outer wall surface portion 50 (circular or elliptical arc) and the intermediate wall surface portion 51 (tangent line to the circular or elliptical arc). This allows the air to flow smoothly from the outer wall surface portion 50 toward the intermediate wall surface portion 51.

[0026] The inner wall surface portion 52 is a wall surface portion that extends from the intermediate wall surface portion 51 via the inner boundary portion 56 to an inner end 54 that is disposed on the traveling direction side Dt of the intermediate wall surface portion 51, and is formed in a convex or flat shape that bulges outward in the radial direction. For example, the inner wall surface portion 52 may be convex in shape, and may be a curved surface whose planar shape is a circular arc, an elliptical arc, or another curve, or may be a polygonal surface whose planar shape is a polygon with obtuse interior angles. The inner wall surface portion 52 may also be flat in shape, and may be a straight line in planar shape.

[0027] The intermediate wall surface portion 51 and the inner wall surface portion 52 are arranged so as to be convex radially outward via the inner boundary portion 56 in a plan view perpendicular to the axial direction Da, so that the intermediate wall surface portion 51 and the inner wall surface portion 52 form an obtuse angle on the support shaft 3 side. Note that the outer wall surface portion 50 and the intermediate wall surface portion 51 may also be arranged so as to be convex radially outward via the outer boundary portion 55 in a plan view perpendicular to the axial direction Da, so that the outer wall surface portion 50 and the intermediate wall surface portion 51 form an obtuse angle on the support shaft 3 side.

[0028] The outer boundary 55 and the inner boundary 56 are formed in a curved or bent shape. The shapes of the outer boundary 55 and the inner boundary 56 may be the same or different. When the outer boundary 55 is curved, it may be formed in the same curved shape as the outer wall surface 50 or the intermediate wall surface 51, and when the inner boundary 56 is curved, it may be formed in the same curved shape as the intermediate wall surface 51.

[0029] The wall surface portions 50 to 52 may be formed integrally with each other by a part or the whole of adjacent portions among the respective portions (the outer wall surface portion 50, the outer boundary portion 55, the intermediate wall surface portion 51, the inner boundary portion 56, and the inner wall surface portion 52), or may be formed by joining a plurality of parts. For example, when the entire wall surface portions 50 to 52 (the outer wall surface portion 50, the outer boundary portion 55, the intermediate wall surface portion 51, the inner boundary portion 56, and the inner wall surface portion 52) are formed integrally, they may be manufactured by bending a flat metal plate or a resin plate or the like in an area corresponding to each portion. As a result, the wall surface portions 50 to 52 have no seams or fasteners, and therefore the fluid resistance of the pressure-receiving member 5 can be reduced.

[0030] The wall portions 50 to 52 may be manufactured by fixing the outer wall portion 50, the intermediate wall portion 51, and the inner wall portion 52, which are formed as separate parts, via fixing portions by any fixing method (welding, bonding, screw fixing, press fitting, rivets, pin connection, joints, etc.). In this case, the fixing portions of the outer wall portion 50 and the intermediate wall portion 51 correspond to the curved outer boundary portion 55, and the fixing portions of the intermediate wall portion 51 and the inner wall portion 52 correspond to the curved inner boundary portion 56.

[0031] In this embodiment, the pair of pressure receiving members 5 each have wall surface portions 50-52 formed integrally, the outer wall surface portion 50 is formed in an arcuate curved shape with a curvature radius R in a plan view, the intermediate wall surface portion 51 and the inner wall surface portion 52 are formed in a planar shape, and the outer boundary portion 55 and the inner boundary portion 56 are formed in a curved shape (arc-shaped curved shape). The pair of pressure receiving members 5 are symmetrically arranged around the support shaft 3 with a 180 degree shift while being spaced apart in the radial direction of the support shaft 3. Therefore, the intermediate wall surface portion 51 of one pressure receiving member 5 and the inner wall surface portion 52 of the other pressure receiving member 5 are arranged in opposing positions, and a gap is formed between the inner boundary portion 56 of each of the pair of pressure receiving members 5 and the outer circumferential surface of the support shaft 3. Moreover, each of the pair of pressure-receiving members 5 is arranged such that the intermediate wall surface portion 51 and the inner wall surface portion 52 are convex toward the radially outward side Dr1 via the inner boundary portion 56, so that the distance between the pair of pressure-receiving members 5 in a plan view perpendicular to the axial direction Da is relatively narrow on the inner end 54 side and relatively wide on the inner boundary portion 56 side. Therefore, the distance between the pair of pressure-receiving members 5 becomes wider as they approach the support shaft 3 side.

[0032] Furthermore, when the pair of pressure-receiving members 5 are disposed symmetrically, the inner end 54 of one pressure-receiving member 5 is preferably disposed on the traveling direction side of a line connecting the outer end 53 of the other pressure-receiving member 5 and the central axis O1 of rotation of the support shaft 3 in a plan view perpendicular to the axial direction Da, and more preferably disposed on the traveling direction side of a line connecting the outer end 53 of the other pressure-receiving member 5 and the inner boundary portion 56. This allows the width of the passage formed between the pair of pressure-receiving members 5 to be appropriately set.

[0033] Furthermore, in this embodiment, each of the multiple support members 4 has, as its shape in plan view, a pair of outer wall surface contour portions 40 formed along the outer wall surface portion 50 having an arc-shaped curved surface, and a pair of straight line contour portions 41 formed so as to connect the pair of outer wall surface contour portions 40. Therefore, each of the multiple support members 4 is formed, in plan view, with two straight line portions arranged in parallel and two curved line portions connecting both ends of the two straight line portions in a semicircular shape.

[0034] The outer mounting portion 57, the intermediate mounting portion 58, and the inner mounting portion 59 are formed so as to face radially outward perpendicularly to the outer wall surface portion 50, the intermediate wall surface portion 51, and the inner wall surface portion 52, respectively, and are in surface contact with the flat plate surface of the support member 4, and are fixed to the support member 4 by any fixing method (welding, bonding, screw fixing, rivet, joint, etc.). The mounting portions 57-59 may be integrally formed with the wall surface portions 50-52, for example, by bending, or may be formed as separate parts from the wall surface portions 50-52. The outer mounting portion 57 may be formed so as to face radially inward Dr2 perpendicularly to the outer wall surface portion 50. In this embodiment, the pair of pressure-receiving members 5 are each formed such that the outer mounting portion 57 is formed as a separate part from the outer wall surface portion 50, and the intermediate mounting portion 58 and the inner mounting portion 59 are integrally formed with the intermediate mounting portion 58 and the inner mounting portion 59.

[0035] When the vertical axis drag type wind power generator 1 having the above-mentioned configuration receives wind from a predetermined direction (windward), the wind passes between the outer end 53 of the leeward pressure receiving member 5 and the inner end 54 of the windward pressure receiving member 5, and flows into between the pair of pressure receiving members 5 along the outer wall surface portion 50 of the leeward pressure receiving member 5, so that a rotational force (drag) acts on the leeward pressure receiving member 5 to rotate it in the direction of travel. Then, the wind that has flowed into between the pair of pressure receiving members 5 passes between the intermediate wall surface portion 51 of the leeward pressure receiving member 5 and the inner wall surface portion 52 of the windward pressure receiving member 5, between the inner boundary portion 56 of the windward and leeward pressure receiving members 5 and the outer circumferential surface of the support shaft 3, and between the inner wall surface portion 52 of the leeward pressure receiving member 5 and the intermediate wall surface portion 51 of the windward pressure receiving member 5, in this order, and then flows out along the outer wall surface portion 50 of the windward pressure receiving member 5. Furthermore, when the windward-side pressure-receiving member 5 directly receives wind from upwind, a rotational force is generated that presses the outer wall surface portion 50 and the intermediate wall surface portion 51 of the pressure-receiving member 5 in the downwind direction (opposite to the traveling direction). On the other hand, when the wind that has flowed in between the pair of pressure-receiving members 5 flows out along the outer wall surface portion 50 of the windward-side pressure-receiving member 5, the outer wall surface portion 50 of the windward-side pressure-receiving member 5 receives the wind, generating a rotational force that presses the outer wall surface portion 50 of the pressure-receiving member 5 in the upwind direction, so that a part of the rotational force acting in the opposite direction to the traveling direction is offset by the rotational force acting in the traveling direction.

[0036] In this way, a rotational force acts on the leeward pressure-receiving member 5 to rotate it in the traveling direction Dt, and the rotational force (rotational energy) is transmitted to the support shaft 3 via the support member 4, causing the support shaft 3 to rotate. The pair of pressure-receiving members 5 then repeat a series of operations while alternately switching between the leeward side and the windward side, causing the support shaft 3 to rotate continuously, and power is generated in the power generation unit 20 connected to the support shaft 3.

[0037] (Frame material 110) FIG. 2 shows the windmill unit 100. The windmill unit 100 is composed of the windmill 10, an upper frame member 112, a lower frame member 114, and a vertical frame member 116 connecting the upper frame member 112 and the lower frame member 114 (hereinafter, the upper frame member 112, the lower frame member 114, and the vertical frame member 116 are sometimes collectively referred to as "frame member 110"). The upper frame member 112 and the lower frame member 114 are each substantially square in shape when viewed from above when four members are assembled, and the corners of each are connected to each other by the vertical frame member 116, so that the windmill unit 100 as a whole has a substantially rectangular parallelepiped shape. The windmill unit may be protected by connecting protective members 118 to the vertical frame members 116 or by connecting protective members 118 to the upper frame member 112 and the lower frame member 114. The frame member 110 has a function of protecting the windmill unit 100 from flying objects from the outside. 1, the protective material 118 may be provided in a lattice shape so long as it does not interfere with the rotation of the wind turbine 10, or a wire mesh may be provided on the frame material 110. The size of the mesh is preferably 3 to 5 cm so that birds cannot get in.

[0038] The frame material 110 may be made using metal materials (including alloys) such as aluminum, stainless steel, titanium, steel, etc., fiber-reinforced resin materials such as carbon fiber reinforced resin and glass fiber reinforced resin, resin materials such as polycarbonate and polyvinyl chloride, or composite materials of these, but selecting a light material has the effect of increasing stability.

[0039] The wind turbine section 100 may be provided with a brake 22 for stopping the rotation of the wind turbine 10, in addition to the power generation unit 20 that uses the rotational force of the wind turbine 10. The brake 22 and the bearing unit 6 can be provided in the upper part of the wind turbine section 100, particularly on the upper side of the upper frame member 112, or in the lower part of the wind turbine section 100, particularly on the lower side of the lower frame member 114, so as not to impede the wind that rotates the wind turbine 10. In particular, it is preferable that the bearing unit 6 is connected to the main pillar 320, the power generation unit 20 is disposed inside the main pillar 320, and the brake 22 is disposed below it.

[0040] The power generating unit 20 is particularly inserted inside the main pole 320, which is the lower part of the wind turbine support part, which provides the advantage of improving the layout of power lines for extracting the power generated by the power generating unit 20 to the outside. Also, by providing the power generating unit 20 inside the main pole 320 or on the upper part of the wind turbine part 100, the center of gravity is lowered, which provides the advantage of increasing stability.

[0041] The lower frame member 114 has an upper connection part 140 that is connected to the support pillar 310. The upper connection part 140 and the support pillar 310 are preferably fixed with a fastening means such as bolts and nuts that allows them to be attached and detached at the installation site of the portable wind turbine device. The ability to attach and detach with bolts and nuts has the effect of facilitating the assembly and disassembly of the wind turbine part 100 and the support pillar 310 at the installation site of the portable wind turbine device.

[0042] A main pillar 320 is provided between the wind turbine section 100 and the base section 200. Providing the main pillar 320 has the effect of stably supporting the wind turbine section 100. As described above, it is preferable that the main pillar 320 is coaxial with the rotation axis of the wind turbine. By adopting such a configuration, it is possible to suppress the occurrence of vibrations. The main pillar 320 is preferably cylindrical. By making it cylindrical, air resistance can be reduced.

[0043] (Base part 200) The base part 200 is composed of at least a foundation box 210 and a foundation framework 250. The foundation box 210 is preferably composed of six plates, namely, four plates, an upper plate 212, a lower plate 214, an inner plate 216, and an outer plate 215, and two side plates 213, to form a hollow box shape. Each member constituting the base part 200 may be manufactured using metal materials (including alloys) such as aluminum, stainless steel, titanium, and steel, fiber reinforced resin materials such as carbon fiber reinforced resin and glass fiber reinforced resin, resin materials such as polycarbonate and polyvinyl chloride, or composite materials thereof.

[0044] The foundation box 210 will now be described. The foundation box 210 may be in the shape of a box made up of six plates, including four plates, an upper plate 212, a lower plate 214, an inner plate 216, and an outer plate 215, and two side plates 213, so that a weight 260 can be inserted inside the foundation box 210. Here, the "weight 260" may be a metal plate or a sandbag.

[0045] The upper plate 212, the lower plate 214, the inner plate 216, the outer plate 215, and the side plate 213 are preferably configured so that they can be assembled into a box shape at the location where the portable wind turbine device is installed. In this embodiment, the overall shape of the base part 200 is approximately square in plan view, and the foundation box 210 is exemplified by combining four trapezoids in plan view, but the foundation box 210 may be approximately square by combining four approximately right-angled isosceles triangles in plan view, or may be approximately square by combining another shape.

[0046] It is preferable that the side plate 213 of the foundation box 210 is configured so that it can be fixed to the foundation framework 250. By placing a weight 260 on the upper surface of the lower plate 214 inside the foundation box 210, the foundation box 210 is stabilized, and the foundation framework 250 fixed to the foundation box 210 is stabilized, thereby stabilizing the entire portable wind turbine apparatus. The foundation box 210 and the foundation framework 250 may be fixed to each other by other means.

[0047] The upper plate 212 is preferably flat. If the foundation box 210 is not stable even when the weight 260 is placed inside the foundation box 210, the foundation box 210 can be stabilized by placing another weight 260 or sandbags on the upper plate 212. It is preferable that the foundation box 210 is provided outside the range defined by the plurality of lower connection parts 240. By doing so, even after the support 310 is assembled to the foundation box 210, the support 310 is less likely to get in the way when the weight 260 is placed inside the foundation box 210, and providing the weight 260 outside the support 310 has the effect of making the base part 200 more stable. Note that a place for providing the weight 260 may be provided inside the range defined by the plurality of lower connection parts 240. The height of the foundation box 210 is preferably such that a person can sit on it, for example, about 30 cm to 60 cm. By setting the height of the foundation box 210 to a height that a person can sit on it, the foundation box 210 can be used as a bench. Also, instead of the weight 260, a potted plant or a planter may be placed on it. It is preferable that the surface on which the potted plant or the planter is placed is about 1 to 5 cm lower than other surfaces, for example, the surface used as a bench. By making the surface on which the potted plant or the planter is placed lower than other surfaces, it is possible to reduce the soiling of the surface used as a bench by watering the potted plant or the planter. Furthermore, by placing the potted plant or the planter, it can be made like a flower bed, and by providing a bench, it can be provided as a place to relax.

[0048] An accessory connection part 220 may be provided on the outer plate 215. The accessory connection part 220 is preferably configured as a hollow pipe and configured so that other components can be connected. The accessory connection part 220 is configured so that, for example, a safety fence can be connected. In addition, a weight 260 may be connected to the accessory connection part 220. By connecting the weight 260 to the accessory connection part 220, the foundation box 210 can be further stabilized.

[0049] The foundation framework 250 will now be described. The foundation framework 250 has an overall cross shape, and is preferably formed as a diagonal brace for the base portion 200, which is substantially square in plan view. The foundation framework 250 may be assembled at the location where the portable wind turbine apparatus is to be installed, and may be secured with bolts and nuts so that it can be disassembled.

[0050] The base portion 200 includes a lower connection portion 240 that can be connected to the support pillar 310. The lower connection portion 240 is provided directly or indirectly on the foundation framework 250. The lower connection portion 240 is provided on the inner side (the main pillar 310 side) of the foundation box 210. By providing the lower connection portion 240 in this position, the support pillar 310 does not get in the way when placing the weight 260 inside the foundation box 210 or when placing sandbags or weights 260 on the upper plate 212. In addition, the ability to place sandbags or weights 260 on the outside of the support pillar 310 has the effect of further increasing stability.

[0051] Upper connection parts 140 are provided on the lower frame member 114, and lower connection parts 240 are provided on the base member 200, and it is preferable that the distance between the upper connection parts 140 and the distance between the lower connection parts 240 are longer than the distance between the upper connection parts 140. In this configuration, when the portable wind turbine device is viewed from the side, as shown in Fig. 1, the lower frame member 114, base member 200, and support columns 310 form a substantially trapezoidal shape. This configuration has the effect of stabilizing the portable wind turbine device.

[0052] A main pillar receiver 326 is provided approximately at the center of the foundation framework 250. By providing the main pillar receiver 326 approximately at the center of the foundation framework 250, an effect is achieved in that the main pillar 320 can be stably held.

[0053] The outer plate 215 may be provided with a foundation box drain hole 224 penetrating the outer plate 215. This has the effect of allowing rainwater accumulated in the foundation box 210 to be drained to the outside of the foundation box 210 via the foundation box drain hole 224. In addition, by configuring the foundation box drain hole 224 with a plug and connecting a hose to the plug, the rainwater can be drained to a predetermined location. Note that it is preferable to provide a check valve in the foundation box drain hole 224 to prevent water from entering the foundation box 210.

[0054] The outer plate 215 and the inner plate 216 can be provided with foundation drainage holes 226 for draining water accumulated in the area surrounded by the foundation box 210. By connecting the foundation drainage holes 226 of the outer plate 215 and the inner plate 216 with a pipe 270, rainwater accumulated in the area surrounded by the inner plate 216 can be drained to the outside via the pipe 270. Note that it is preferable to provide a check valve for the foundation drainage hole 226 as well to prevent rainwater from flowing back.

[0055] A protective fence can be provided on the accessory connection unit 220. By providing a protective fence on the portable wind turbine device, contact with people can be avoided when the portable wind turbine device is installed in a place where people enter and exit, such as a park, and measures against animal damage can be taken when the portable wind turbine device is installed in a place such as a mountain. When a protective fence is provided on the portable wind turbine device, a warning sound can be sounded from a speaker or a lighting device can be activated at night when a human sensor or the like determines that a person has entered the protective fence or that an animal has approached the protective fence.

[0056] 1 is characterized in that a solar panel 400 is provided on top of the wind turbine section 100. In this embodiment, an example is shown in which two solar panels 400 are installed at an incline like the roof of a house, for example a gabled roof, but the size, number, installation angle, and installation form of the solar panels 400 can be changed as appropriate taking into account sunlight, etc. The solar panel 400 may be provided directly on the wind turbine unit 100 or via a roof 401 provided on the top of the wind turbine unit 100 .

[0057] By providing the solar panel 400 on top of the wind turbine section 100, the position of the solar panel 400 is raised, which has the effect of reducing the influence of other buildings and trees when generating electricity using the solar panel 400, and also of protecting the wind turbine 10 by functioning as a roof.

[0058] In addition, a control panel 450 for controlling the power generation unit 20 may be provided on the main pole 320. The control panel 450 is electrically connected to the power generation unit 20 and the solar panel 400 via a pull box. The control panel 450 may be configured to supply the electricity generated by the power generation unit 20 and the solar panel 400 to the outside. The control panel 450 is preferably provided on the upper part of the main pole 320, such as directly below the wind turbine unit 100, to prevent water damage and tampering by children.

[0059] A battery may be provided inside the control panel 450. By providing a battery inside the control panel 450, the power generated by the wind turbine or the solar panel 400 can be charged in the battery, and the charged power can be used for lighting or the like. A wireless device for communicating with the outside may be provided inside the control panel 450. The wireless device provided inside the control panel 450 may be connected to an antenna 460 provided on the upper part of the wind turbine unit 100. The wireless device provided inside the control panel 450 may be configured to be connected to a central monitoring device located in another location, and may transmit the power generation status of the power generation unit 20 and the solar panel 400 to the central monitoring device, or transmit images from a monitoring camera provided in the portable wind turbine device to the central monitoring device. When the portable wind turbine device is made to function as an observation device installed for weather observation, it may be provided with measuring instruments such as a thermometer, a hygrometer, and a barometer, and may be configured to transmit the measurement results of the measuring instruments to the central monitoring device. The wireless device provided inside the control panel 450 may function as a base station for a mobile phone. It may also have a Wi-Fi function.

[0060] Also, lighting 420 may be provided on the upper part of the windmill unit 100. In particular, when the lighting 420 is provided on the lower part of the solar panel 400, the light emitted from the lighting 420 toward the solar panel 400 and the roof 401 is reflected by the solar panel 400 and the roof 401, and can be irradiated toward the ground. The lighting 420 may be a spotlight, or may be a panel-shaped lighting. When a panel-shaped lighting 420 is adopted, it is more preferable to adopt a lighting that functions as a display panel. When the lighting 420 is a spotlight, it can be configured so that the light of the spotlight is irradiated to the windmill 10. Also, the windmill unit 100 may be provided with a lightning rod or a clock as appropriate. The windmill unit 100 may be provided with a speaker and configured to sound the time in conjunction with the clock. When the time is signaled by a bell, a screen that shows a bell swinging in conjunction with the time signal can be displayed on the display panel. Furthermore, a human sensor may be provided in the windmill unit 100 to control a spotlight (to be described later) or play music from a speaker. Since the portable wind turbine device of the present invention is equipped with a power source, it can be combined with various devices and used for a variety of purposes.

[0061] Other embodiments Another embodiment is shown in FIG. Another embodiment is characterized in that a cover 410 is provided between a pair of supports 310. The cover 410 may be provided on only one surface between the pair of supports 310, or may be provided on all four surfaces of the four pairs of supports 310. The cover may be a transparent plate, or may have letters or images drawn on it depending on the location where it is installed. By providing a cover, it is possible to protect items arranged in the space surrounded by the supports 310, such as a control panel 450, from sunlight and rain. Cover 410 may be a flat plate of wood or metal, or may be made of other materials. When cover 410 is made of metal, it may be made of punched metal. By making it of punched metal, it is possible to reduce wind resistance and improve the ventilation of the area enclosed within cover 410.

[0062] The cover 410 can be given a display function by painting the plate or applying a sticker or wrapping. Depending on the content of the display, the cover 410 can be used as a guide board or display corporate advertisements. The cover 410 can also have the functions of the solar panel 400. By having the functions of the solar panel 400, the cover 410 can generate power from sunlight. When the cover 410 is provided on four sides, the functions of the solar panel 400 can be given only to the cover 410 that receives good sunlight. By giving the functions of the solar panel 400 only to the cover 410 that receives good sunlight, the effect of efficient power generation is achieved.

[0063] Also, the cover 410 can be given a display function capable of displaying images and text. When the portable windmill device is installed in a park, it is preferable to display scenery that does not destroy the atmosphere of the park. When covers 410 are provided on four sides of the portable windmill device, the display function can be given only to specific covers 410. By giving the display function only to the cover 410 in the direction that is most likely to attract attention, efficient display can be achieved. Also, the other covers 410 can be given the function of the solar panels 400.

[0064] The portable windmill device may also have a lantern mode. In the lantern mode, the lighting 420 is lit up like a lantern by controlling the brightness and color. In the lantern mode, for example, the cover 410 can be made to have a wood grain pattern as shown in FIG. 10, or a stone masonry-like screen can be displayed as shown in FIG. 11. By displaying the lighting 420 as if a flame is burning and flickering, the portable windmill device as a whole can be made to look like a lantern. Also, a spotlight may be provided under the roof 401 and the brightness of the spotlight may be adjusted over time to make it look like a flickering flame, or a panel-like display device may be provided under the roof 401 and the content displayed on the panel-like display device may be made to look like a flickering flame. Also, if the spotlight is configured to shine on the windmill 10, the rotation of the windmill can give the impression that the entire windmill is a flickering flame.

[0065] When the portable windmill device is installed in a park or the like, the lantern mode can be set without destroying the atmosphere of the park, thereby providing the effect of expanding the selection of locations for installing the portable windmill device.

[0066] Other embodiments Another embodiment is shown in FIG. This embodiment is characterized in that a flat plate 430 that can also be used as a landing port is provided on the upper part of the wind turbine unit 100. By providing the flat plate 430 on the upper part of the wind turbine unit 100, it functions as a roof and also functions as a landing port where a drone can land. The flat plate 430 can also be configured with a solar panel 400. A display indicating that it can be used as a landing port for a drone may be displayed on the surface of the flat plate 430, or a known means may be adopted to guide the drone to the flat plate 430. In addition, the flat plate 430 can be configured to supply power to the drone without contact. This has the effect of easily supplying power generated by the portable wind turbine device to the drone.

[0067] In order to prevent the device from falling over, the combination of materials for the windmill, base, and pillar may be specified. The materials used for the windmill and pillar are lightweight metals such as aluminum, fiber-reinforced resin materials such as carbon fiber reinforced resin and glass fiber reinforced resin, and resin materials such as polycarbonate and polyvinyl chloride, while the materials used for the base are heavy metal materials (including alloys) such as stainless steel and steel. By using lightweight materials for the wind turbine section and pillar section and heavy materials for the base section, it is possible to prevent the portable wind turbine device from falling over.

[0068] The transportability of the portable wind turbine device may be improved. It is preferable that the portable wind turbine device can be transported in a small truck in a disassembled state and can also be transported in a partially assembled state in a small truck. In addition, it is preferable that the weight of each individual part in the disassembled state is 30 kg or less even at its heaviest. With this configuration, the portable wind turbine device can be transported without the need for a large truck, and can be assembled manually on site.

[0069] Moreover, the wind turbine employed in the portable wind turbine device is preferably a vertical axis wind turbine. A vertical axis wind turbine does not need to take into account the wind direction. Therefore, when the portable wind turbine device is temporarily installed in a park or installed as a generator in a place where a power outage occurs due to a disaster, it can be quickly installed without considering the wind direction.

[0070] Next, a method for assembling the portable wind turbine device will be described. It is preferable that the wind turbine section 100, the base section 200, and the pillar section 300 are each previously assembled as a unit within a range that allows transportation. Here, an example is shown in which the bearing unit 6, the power generation unit 20, and the brake 22 are unitized with the wind turbine section 100 via the support shaft 3.

[0071] First, the location where the portable wind turbine device will be installed is determined. It is preferable that the location where the portable wind turbine device will be installed is as flat as possible. Once the location where the portable wind turbine device will be installed is determined, the base unit 200 is assembled and installed, and the weight 260 is inserted into the foundation box 210.

[0072] Next, the column portion 300 is connected to the base portion 200. The main column 320 is connected to a main column receiver 326 provided on the base portion 200.

[0073] Next, the wind turbine unit 100 is connected to the upper part of the main pole 320. It is preferable that the bearing unit 6, the power generation unit 20, and the brake 22 are connected to the support shaft 3 of the wind turbine unit 100 in advance. The wind turbine unit 100 is assembled to the upper part of the main pole 320 by connecting the bearing unit 6, the power generation unit 20, and the brake 22 connected to the support shaft 3 so as to be inserted inside the cylindrical main pole 320. When the flange 24 of the wind turbine unit 100 via the support shaft 3 and the flange 26 of the main pole 320 are joined, it is preferable to fix them with bolts and nuts. Then, it is preferable to connect the upper connection part 140 provided on the support pole 310 and the wind turbine unit 100, and then connect the lower connection part 240 provided on the support pole 310 and the base part 200.

[0074] After the assembly of the wind turbine section 100, the pillar section 300, and the base section 200 is completed, a weight 260 or a potted plant can be placed on the top of the upper plate 212 of the foundation box 210 as necessary. According to this assembly method, the wind turbine unit 100, the base unit 200, and the pillar unit 300 are previously unitized, which has the effect of facilitating assembly on-site. Furthermore, after the assembly is completed, the support 310 can be prevented from getting in the way when placing the weight 260 or a potted plant on the top of the upper plate 212 of the foundation box 210. Furthermore, although the pillar unit 300 forms a quadrangular pyramid, it has a compact shape that fits inside the foundation box 210, which has the effect of reducing wind resistance.

[0075] Additional Notes It is noted that the above-mentioned portable wind turbine device can be embodied in the following embodiments 1 to 7. (Implemented invention 1) A portable wind turbine device including a wind turbine unit, a base unit, and a column unit, The wind turbine section supports a wind turbine, The pillar portion includes a main pillar and a plurality of support pillars, The upper ends of the plurality of columns are connected to an upper connection portion of the wind turbine unit, The lower ends of the plurality of columns are connected to the lower connection portion of the base portion, The base portion has a foundation box on which a weight can be placed, the foundation box being disposed outside a range defined by the plurality of lower connection portions. Portable windmill equipment. (Implemented invention 2) A portable wind turbine device as described in embodiment 1, comprising a power generation unit inside the main pillar or in the wind turbine section, which generates electricity by rotating the wind turbine. (Implemented invention 3) A portable wind turbine device according to claim 1 or 2, wherein the wind turbine section is equipped with a solar panel that generates electricity using sunlight. (Implemented invention 4) A portable wind turbine device as described in embodiments 1 to 3, wherein the foundation box is hollow. (Implemented invention 5) A portable wind turbine device as described in any one of claims 1 to 4, wherein the foundation box has at least a releasable upper plate, and a weight can be inserted into the foundation box with the upper plate released. (Implemented Invention 6) A portable wind turbine device as described in embodiment 5, wherein the upper plate has a flat upper surface and other components can be placed on the upper surface of the upper plate. (Implemented Invention 7) The portable wind turbine device according to any one of claims 1 to 6, wherein the wind turbine is a vertical axis wind turbine. (Implemented invention 8) A method for assembling a portable wind turbine device having a wind turbine section, a base section, and a column section, each of which is unitized, comprising the steps of: The base unit is installed at an installation location of the portable wind turbine device, The column portion is fixed to the base portion; The wind turbine unit is fixed to the column unit which is fixed to the base unit. A method for assembling a portable wind turbine device. [Explanation of symbols]

[0076] 1...Portable wind turbine device, 3...support shaft, 4...support member, 5...pressure-receiving member, 6...bearing 10...wind turbine (drag type turbine unit), 20...power generation unit, 22...brake 30: connecting and fixing member, 31: connecting mechanism part 40... Outer wall outer shape, 41... Straight line outer shape, 42... Intermediate wall outer shape, 43...Inner wall outline part, 44...Line outline part, 45...Connection mechanism part 50...Outer wall section, 51...Intermediate wall section, 52...Inner wall section 53...outer end, 54...inner end, 55...outer boundary, 56...inner boundary, 57: outer mounting portion, 58: intermediate mounting portion, 59: inner mounting portion 100...Windmill part, 110...Frame material, 112...Upper frame material, 114...Lower frame material 116...vertical frame material, 118...protective material, 140...upper connection portion 200...base portion, 210...foundation box, 212...upper plate, 213...side plate 214...lower plate, 215...outer plate, 216...inner plate, 220...attached connection part 222...Drainage hole in foundation, 224...Foundation box drainage hole, 226...Drainage hole in foundation 240…Lower connection part, 250…Foundation frame 256...box plate, 260...weight, 270...pipe 300...Column section, 310...Support column, 320...Main column, 326...Main column support 400...Solar panel, 401...Roof, 410...Cover, 420...Lighting 425...Clock, 430...Plate, 450...Control panel, 460...Antenna

Claims

1. A portable wind turbine device including a wind turbine unit, a base unit, and a column unit, The wind turbine section supports a wind turbine, The pillar portion includes a main pillar and a plurality of support pillars, The upper ends of the plurality of columns are connected to an upper connection portion of the wind turbine unit, The lower ends of the plurality of columns are connected to the lower connection portion of the base portion, The base portion has a foundation box on which a weight can be placed, the foundation box being disposed outside a range defined by the plurality of lower connection portions. Portable windmill equipment.

2. The portable wind turbine device according to claim 1 , further comprising a power generation unit disposed inside the main pole, the power generation unit generating power by rotation of the wind turbine.

3. The portable wind turbine device according to claim 1 , wherein the wind turbine section is provided with a power generation unit that generates power by rotation of the wind turbine.

4. The portable wind turbine device according to claim 1 , wherein the wind turbine unit includes a solar panel that generates electricity using sunlight.

5. The portable wind turbine device of claim 1 , wherein the foundation box is hollow.

6. 5. The portable wind turbine apparatus according to claim 4, wherein the foundation box includes at least a releasable upper plate, and a weight can be inserted into the foundation box with the upper plate in the released state.

7. 6. The portable wind turbine device according to claim 5, wherein the upper plate has a flat upper surface on which other members can be placed.

8. The portable wind turbine device according to claim 1 , wherein the wind turbine is a vertical axis wind turbine.

9. A method for assembling a portable wind turbine device having a wind turbine section, a base section, and a column section, each of which is unitized, comprising the steps of: The base unit is installed at an installation location of the portable wind turbine device, The column portion is fixed to the base portion; The wind turbine unit is fixed to the column unit which is fixed to the base unit. A method for assembling a portable wind turbine device.

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