JP3116432U - "Kazaguruma" wind power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small wind power generator that rotates efficiently at a low wind speed by a light and easy-to-follow “wind pin” having a simple structure.
A central portion of a thin circular substrate 10 made of a lightweight steel plate, FRP, synthetic resin material, or the like is a main portion 5, and a through hole 2 for a rotating shaft 7 is not provided in the center of the peripheral portion 11 of the main portion 5. The cutting holes 20 for cutting are drilled at six locations, and the space between the locking holes 20 and the outer peripheral edge is cut out in an arc shape to form a ventilation fan-like substrate 10 having six petals 30. After the through-hole 2 is drilled in one corner of the outer peripheral edge 11 of each petal 30, three (odd number) of the six petals 30 with the main part 5 of the substrate 10 as a base surface upward, The other three sheets are bent downward in a parabolic shape to form the wind vane blade 40, and the blade portion 4 having an elliptical cross-sectional shape forms a two-stage “pinwheel” 1. A rotating shaft 7 is inserted into and supported by the through hole 2 at the center of the substrate 10 and the through holes 2 of each petal 30 and the rotating shaft 7 is directly connected to the generator G to constitute a wind power generator.
[Selection] Figure 2

Description

  The present invention is a horizontal rotation type windmill having a vertical axis, and more specifically, by means of a blade formed by bending three circular petals by cutting out one circular substrate and folding the three petals upward. The present invention relates to an all wind direction type windmill device in which a blade portion to be formed generates electric power by two stages of “pinwheels”.

  Conventional types of wind turbines used as wind power generators include a horizontal axis shape whose rotation axis is parallel to the flow of wind and a vertical axis shape perpendicular to the horizontal axis shape. Propeller type wind turbines and Dutch wind turbines used, and vertical axis types are known as battle type wind turbines and Savonius type wind turbines that use drag, as well as vertical axis types that are unique to rotate at high speed using lift. Darrieus type windmills and gyromill type windmills have been developed as windmills, but they have not been put into practical use because of their poor startability at low wind speeds.

  Each of the above windmills has its own characteristics.The lift type horizontal axis windmill is a high-speed type that can obtain high output by increasing the diameter of the blades by raising the tower that supports the windmill. And the direction of the blades must be controlled (wind direction tracking). On the other hand, the drag-type vertical axis windmill is a low-speed type that rotates regardless of the wind direction, but has a problem in that a high output cannot be obtained because the rotation speed is not increased by the wind drag. For this reason, these models are selected according to the wind conditions at the location where the windmill is installed and the usage of the generated power.

In addition, as a windmill having a shape similar to the blade portion of the “Kazaguruma” type wind power generator of the present invention, a “Kazaguruma” (four corners of square paper is cut forward as shown in FIG. 5A). In addition to the bent blades that are supported on a horizontal axis, hereinafter also referred to as wind turbines), wind turbines such as (b) and (c) have been disclosed. It is a toy created for play and viewing that is not taken into account, and is different from this wind power generation device in which a generator and a lighting fixture are mounted on a windmill, in terms of its creation and field of use.
Showa 60-69372 Utility Model Publication Japanese Patent Laid-Open No. 6-190155

Conventionally, in the promotion of power generation business using clean energy, development has been carried out based on a commercial and industrial base mainly by power generation companies and windmill manufacturers. What is truly desired in the creation of the equipment is the cost performance of wind turbine manufacturers and buyers who have increased wind power generation capacity (large, high output) and increased power generation. Rather than aiming for a stance, the basic philosophy is to preserve and harmonize the earth's natural environment and human living environment through measures to prevent global warming, such as pollution, and enjoy the benefits of natural energy users (citizens) It is to devise useful and appropriate ways of using thought.
In other words, we created a wind turbine generator that is more environmentally friendly and rich in public interest and democracy (by creating a simple and simple property that people can easily use in daily life and having their own energy) It is important to share this, and the mechanism for that is the subject of the present invention.

As a mechanism to solve the problem, in the present invention, in order to create a simple and easy windmill, we first studied the shape of the blade with the highest rotational efficiency against the wind. Focusing on the shape, structure, and function of the hand-made “Kaguriguruma” as shown in FIG.
The reasons are as follows: (1) The blade curved surface has a shape that generates both lift and drag, so the power coefficient (conversion efficiency) is high. (2) The structure is simple and molding is easy. (3) The blade is lightweight and can be easily rotated by the wind. (4) The material of the blades is straightforward. (5) The rotational efficiency is high because the wind turbine rotates with respect to the entire wind direction by configuring the blade portion in two upper and lower stages and pivotally supporting it.
Therefore, the main means is to provide a wind turbine structure having these functions and characteristics.

  The wind power generator according to the present invention is configured to support a two-stage blade portion formed by bending three petals (翅) formed from a circular substrate upward and three downwards with a vertical rotation shaft, and generating power with this. This is a lightweight and simple windmill that is directly connected to the machine, and is an efficient windmill that supports all wind directions (horizontal and up-down oblique directions), so it is installed on a base that is installed on the rooftop of the home as shown in FIG. In addition to being used as a private power generator, this has the effect of an emergency light source in the event of a disaster.

  A wind power generator with this windmill structure can be installed on steel towers and structures in high mountainous areas where wind blows at all times, and the generated electricity can be used as security facilities such as obstacle lights for aviation signs.

  A wind power generator with this wind turbine structure is installed on an offshore buoy (buoy) where the wind blows at all times, and the generated electricity can be used as a security facility such as an obstacle light for ship signs.

  As shown in Fig. 4 (a), a toy equipped with lighting equipment on the windmill structure can be used as an emergency power source to replace a flashlight, or an advertising tower as shown in Fig. 4 (b) can be used as a commercial power source in mountains where wind blows. If it is installed on public land such as forest parks and amusement parks that are difficult to secure, it is effective as a welfare and environmental harmony facility.

The configuration and operation of the embodiment will be described below with reference to the drawings.
FIG. 1 shows a thin plate made of lightweight steel, FRP, hard vinyl chloride plate, etc., which can be made into a “pinwheel” 1, in the center of a circular substrate 10 having a diameter D and a radius r. A through hole 2 is inserted through the rotary shaft 7, and a range of a radius r ₁ = 0.2 r from the center is set as a main part 5, and a notch engaging hole 20 is formed at the peripheral edge 11 of the main part 5. 6 are drilled at intervals of θ of 60 degrees, and the petal portion 3 composed of six petals 30 is formed by cutting out from the locking hole 20 to the outer peripheral edge of the substrate 10 in an arc shape (radius r ₂ = 0.9 r). Then, the through-hole 2 for axial passage is drilled at one corner of the peripheral edge 11 of each petal 30 and the corners of both corners of the peripheral edge 11 of the petal 30 are chamfered (radius r ₃ = 0.2r). The odd numbered three petals 30 are folded upward with the main part 5 as the base, and the even numbered three petals 30 are folded downward to form the wind vane 40, as shown in FIG. A rotating shaft 7 is inserted into and supported by the through hole 2 of each of the three blades 40 that are bent up and down and overlapped with the through hole 2 at the center of the substrate 10, and the blade part 4 having an elliptical cross-sectional shape (with a width of 4). d, the height h) constitutes a “pindle” 1 having two stages above and below the main part 5.

  FIG. 1 shows a circular substrate 10 for forming the windmill 1 as described above. A through hole 2 is drilled in the center of the substrate 10 and a notch engaging hole 20 is formed in a peripheral portion 11 of the main portion 5. Is cut out in an arc shape from the locking hole 20 to the outer peripheral edge to form a ventilation fan-like substrate 10 having six petals 30 of the petal portion 3. The through-hole 2 is drilled in one corner of the outer peripheral edge 11 of each petal 30, and both corners are cut in an arc shape in order to chamfer both corners of the peripheral edge 11 of the petal 30 and the notch 60 is removed.

  FIG. 2 shows the center of the perforation 2 and the main part 5 of the outer peripheral edge 11 of the petal 30 by bending three of the six petals 30 forming the petal part 3 upward and the other three downward. The rotary shaft 7 is inserted into the through hole 2, the upper and lower blade portions 4 are fixed to the rotary shaft 7 with a fixing bracket at a predetermined interval h, and the blade portions 4 having an elliptical cross-sectional shape are formed in two stages in the vertical direction. A wind turbine with a height of H is supported.

  FIG. 3 shows a wind power generator installed on a gantry S installed on the roof of a building. A cap is attached to a stone protrusion 70 at the upper end of the vertical rotating shaft 7 of the two-stage wind turbine 1, and the rotating shaft 7 is used as a gantry. This is a decentralized personal electric equipment that is inserted into the mounted shaft tube 8 and connects the lower end of the rotating shaft 7 and the rotating shaft 7 of the small generator G installed on the mount S to supply small electric power to a general household.

  FIG. 4A shows a decorative toy. A small luminaire L is mounted on the upper end of the rotary shaft 7 of the two-stage windmill 1 and a small tube L is mounted on the lower end of the rotary shaft 7. A windmill 1 is configured by attaching a handle part 9 for gripping, inserting the rotary shaft 7 into the shaft tube 8, and connecting the rotary shaft 7 of a small DC generator G inserted in the handle part 9. To do. FIG. 2B shows a wind turbine 1 device in which a two-stage windmill 1 is mounted on a signboard decoration table B such as a street light, a park monument, an advertising tower, etc., and a small generator mounted inside the decoration table B. A small wind power generation and illumination device in which a rotating shaft 7 of G and a rotating shaft 7 that supports the two-stage wind turbine 1 are connected to each other and a lighting tool L is attached to the upper end of the rotating shaft 7 of the two-stage wind turbine 1. is there.

The wind turbine of the present invention is installed in multiple stages on the landings of the existing steel tower body, these are pivotally supported by a rotating shaft suspended from the top of the tower, and the rotating shaft is connected to a generator installed on the ground. Configure.
The utility value is that the windmill is light and easy to install. The load coefficient as a lateral load related to the installation of the windmill support is small. It is compatible with all wind directions and has excellent power generation efficiency. The generated electricity can be used as a power source for air traffic lights, night work lights, etc.

A circular substrate made of the material used to form “Kazaguruma”. The top view and side view of "Kazaguruma". A rooftop type wind power generator using a “Kazaguruma” windmill. (A) A decorative toy with a “pinwheel” style windmill. (B) 装飾 Sign decoration stand. (A) Conventional “Kazaguruma” for toys (colored paper, cut and bent). (B) 〃 Windmill (board punching type). (C) 〃 Windmill (with blades attached to an inclined turntable).

Explanation of symbols

1 “Pigwheel” (windmill) 10 Substrate (thin plate, circular) 11 Peripheral part 2 Through hole (for rotating shaft) 20 Locking hole (for notch)
3 Petal part 30 Petal 4 Blade part 40 Blade 5 Essential part 6 Cutting part 60 Notch part 7 Rotating shaft 70 Stone head (cap part)
8 shaft pipe (for shaft support)
9 Handle (for gripping)
G Small generator (DC)
S frame B decoration table L lighting fixture r radius (circular substrate) r ₁ arc (cut) r ₂ arc (chamfer)
θ Center angle (〃)
H Height of two-stage wind turbine h Mounting interval of blades D Diameter of substrate d Diameter of two-stage wind turbine

Claims (1)

In a circular substrate that cuts out a thin plate made of lightweight steel, FRP, synthetic resin, etc. to form a “skull bear”, the central part is the main part and the peripheral part is the petal part. Drill 6 through-holes through the rotating shaft and 6 notches on the peripheral edge of the main part at intervals of 60 ° in the center angle θ (b) From the locking hole to the outer periphery Cut into a circular arc shape to form a petal part consisting of six petals (c) Perforate a through-hole through the rotating shaft at one corner of the outer peripheral edge of each petal (d) Six petals Fold three of them (odd number) upward and the other three (even number) downward in a parabolic shape to form wind vanes and form the blades above and below the main part (e) After inserting the rotating shaft through the through hole of the three upper and lower blades (petals) and the through hole at the center of the substrate, the upper and lower It is fixed to the rotating shaft by fastener root and main part.
(F) An all wind direction-compatible compact wind power generator, characterized in that a generator is directly connected to a rotating shaft that pivotally supports a “skull bear” having two-stage upper and lower blade sections with an elliptical cross-sectional shape.

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