JP2005226588A - Wind power generation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wind power generation device for reducing limitation of an installation place more than a propeller system, capable of expecting power generation of efficient larger output than a Savonius type, relatively easy in adjusting power generation output in a weak wind and a strong wind, and capable of adding both the function capable of generating electric power even at windless time and the function such as an advertisement tower. <P>SOLUTION: This wind power generation device has an impeller 2 having a rotary shaft existing in the horizontal direction, a support frame 3 of this impeller, a rotary support mechanism part 4 capable of rotating this frame in the horizontal direction, and a support foundation part 5; and is provided with a windbreaking member 6 capable of preventing wind on a lower directional half of the impeller 2 on the windward side of the support frame 3 and a vertical tail 7 on the leeward side; and uses a windmill in the form of arranging a wind introducing member 8 capable of guiding the wind from below into the rotational direction of the impeller 2 to a lower rear part of the windbreaking member 6. A lower part of the wind introducing member 8 can be rotated. A wind guiding quantity can be adjusted. Torque of the impeller can be adjusted in a weak wind and a strong wind. A light receiving part 11 of a solar battery is attached to an upper outside surface of the support frame 3. The function of photovoltaic power generation and the function of the advertisement tower are added by arranging the light receiving part 11 of a solar battery on the upper outer surface of the support frame 3 etc. applying a character to the vertical tail 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a wind turbine generator, and in particular, can receive wind while appropriately facing a change in wind direction using an impeller having a plate-like rotating blade and a rotating shaft in a horizontal direction. The present invention relates to a wind power generator of a wind receiving system that can increase the rotational force.

  Conventionally known propeller type, Savonius type, Darius type wind turbines and the like are known as wind power receiving methods. Each wind receiving method has its advantages and disadvantages when used. For example, the propeller type can be expected to generate a large power output by making the rotor blade longer and the diameter of the rotor larger. Because it is necessary to deal with the strong winds and the damage to the surroundings due to the breakage and scattering of the rotor blades must be taken into consideration, the installation location is limited, and those that are similar to the Savonius type and Darius type have a rotating shaft in the vertical direction Therefore, it is easy to generate electricity at a position that does not require too much height from the surface of the installation base, and there are relatively few installation places. However, depending on the rotational position of the rotor blades, the received wind acts as a resistance to rotation. Since the wind speed is different in the height direction even at the same point, it is difficult to say that the conversion of wind energy into rotational energy is efficient and it is difficult to expect large output due to enlargement.

  For this reason, the present inventor considers the pros and cons of each of the wind receiving methods, and proposes a new power generation method of “wind power generator (Japanese Patent Application No. 2003-101208)” and “wind power generator (Japanese Patent Application No. 2003-422296)”. Has already been filed. The purpose of the proposal is to use an impeller having rotating blades that receive wind on a plate-like surface and having a rotating shaft in the horizontal direction and supported at both ends of the rotating shaft, and the support structure of the impeller is above the support base. This makes it possible to generate power at a position that does not require too much height from the installation base surface so that it can be rotated in response to changes in the wind direction, and winds the lower half of the rotation range of the impeller on the windward side of the support frame. The rotational position of the rotor blades eliminates the resistance force caused by the wind force, increases the rotational force of the impeller, and enables efficient power generation. There are fewer installation places than the propeller type, and the output is more efficient and larger than the Savonius type etc. It is to provide a wind power generator that can be expected to generate electricity.

Moreover, although the said proposal can achieve the objective as it is, the importance of wind power generation increases, and the wind power generator with higher power generation efficiency is desired especially in the time of a weak wind. Moreover, since the cost-effective economic hurdle remains for the popularization of wind power generators, wind power generators with other functions are also desired.
Japanese Patent Application No. 2003-101208 Japanese Patent Application No. 2003-422296

  The most important problem to be solved by the present invention is that the large-scale propeller system has a limited installation location and is difficult to install on the roof of a building or the like. For this reason, it is a wind power generator that has fewer installation locations than the propeller type and has a relatively high power generation efficiency compared to the Savonius type, etc. and can be expected to generate a large output, depending on the wind conditions such as during weak and strong winds. It is an object of the present invention to provide a wind power generator that is relatively easy to adjust the power generation output and that can be added with other functions such as a function that enables power generation even when there is no wind and an advertising tower.

  In order to achieve the above object, the wind turbine generator according to the present invention uses an impeller having three or more plate-like rotating blades radially projecting from the rotating shaft and having the rotating shaft in the horizontal direction. It has a frame-shaped support frame that supports both ends, a rotation support mechanism part that connects and supports the frame-like support structure, and a support base part that connects and supports the frame, and an impeller on the windward side of the support structure. A wind turbine is used that has a wind-proof member that can prevent wind in the lower half of the rotation range, and that has a vertical tail on the leeward side so that a specific surface of the support frame can easily face a change in wind direction. The most important feature is that the wind power generation device is provided with a shape that allows the wind from the bottom of the windbreak member to be introduced in the direction of rotation of the impeller from the bottom to the rear of the windbreak member. And

  In addition, the wind-proof member has a cross-sectional shape similar to a shape of a part of an ellipse that touches two sides of a triangle having a vertex angle of about 60 to 90 degrees protruding forward or a vertex thereof. It is the wind-proof member which is characterized by the above-mentioned.

  Furthermore, the wind guide member is a wind guide member having a cross-sectional shape of a dogleg shape or a curved shape which is effective for guiding the wind in the rotation direction of the impeller. Further, the air guide member is guided in the rotational direction of the impeller by rotating the lower part so that the shaft is fixed and at least the lower part can be rotated with the intermediate top as an axis. It is characterized by being able to adjust the air volume.

  Further, the present invention is characterized in that a solar cell light receiving portion is attached to at least the upper outer surface of the support frame so that solar power generation is possible. Furthermore, a character or a design is applied to the side surface portion or vertical tail of the support frame to add a function as an advertising tower.

  According to the present invention, it is a wind power generation device that is less limited in installation location than a propeller system and can be expected to generate power with a relatively high power generation efficiency and higher output than a Savonius type, etc. Accordingly, it is possible to provide a wind power generator that can adjust the power generation output relatively easily. For this reason, the propeller system can be installed easily on the rooftop of buildings, etc., where it has been difficult to install due to the possibility of damage and scattering of rotor blades, etc. It becomes like. Furthermore, it is possible to provide a wind power generator with high functionality to which a function capable of generating power even when there is no wind by solar power generation or a function as an advertising tower is added.

  As the best mode of the wind power generator of the present invention, what is described below is considered. The form of the large frame of the windmill is a one-stage or two-stage form using one or two impellers. Usually, it is preferable to use 4 to 6 rotor blades, and to provide a section with a cross-section or a curved shape in the vicinity of the outer peripheral side to improve the wind receiving efficiency of the blade. The support frame preferably has a substantially cylindrical shape in which the height / width as a dimensional ratio on the opening side is about 1/1 to 3 and the lateral width approximates the rotational diameter of the rotor blade. As the rotation support mechanism part, it is preferable to use a mechanism that is stable against strong winds and has a low frictional resistance and is easy to rotate. . The support foundation is fixed to the ground or building frame in a form of frame that can reduce wind resistance using a steel frame and is strong in strong winds. The windbreak member preferably has a cross-sectional shape similar to an isosceles shape having an apex angle of 70 to 80 degrees or a part of an ellipse in contact with its apex. The vertical tail is preferably shaped so that the strength and strength of the vertical tail are small and light as much as possible, the number of portions protruding from the upper part of the support frame is increased, and a larger wind receiving surface away from the rotating shaft can be secured. It is preferable that the air guide member has a cross-sectional shape of a dogleg shape or a curved shape, the upper portion is fixed and the lower portion is rotatable. In the example of the dogleg shape, the upper portion is about 70 to 80 degrees. An impeller equipped with a control mechanism that can be fixed at an angle within the range and the lower part can be rotated about 50 degrees below the horizontal from the lower end of the windbreak member and can be fixed at any angle within this range. It is preferable to be able to adjust the amount of air flow in the rotation direction. The generator has high power generation efficiency and is miniaturized as much as possible, and is preferably disposed on the lower lee side of the impeller so that useless opening dimensions of the support frame are not required. The rotation transmission mechanism that transmits the rotational force of the impeller to the generator is preferably a mechanism with a small transmission loss and low wind resistance. Then, a solar cell light receiving part is attached to at least the upper outer surface of the support frame so that solar power generation is possible, and characters and designs are added to the side part or vertical tail of the support structure to add a function as an advertising tower. It is preferable.

  FIG. 1 is a cross-sectional view of one embodiment of the wind power generator of the present invention. 2 is a front view of the example of FIG. 1, and FIG. 3 is a side view of the example of FIG. FIG. 4 is a cross-sectional view of an example in which the impeller of the example of FIG. FIG. 5 is a cross-sectional view of an example in which the lower part of the air guide member is rotatable. Hereinafter, a wind power generator according to the present invention will be described with reference to the drawings. In addition, about the code | symbol in the said figure, it describes in description of the following code | symbol.

  As shown in FIGS. 1 to 3, the wind turbine generator 1 according to the present invention uses an impeller 2 having plate-like rotating blades that project radially and a rotating shaft in a horizontal direction, and supports the impeller 2. It has a frame-shaped support frame 3, a rotation support mechanism part 4 that connects and supports the frame-like support frame 3, and a support base portion 5 that connects and supports the frame support frame 3. A wind-proof member 6 that can wind-proof the lower half of the rotation range is provided, and a vertical tail 7 is provided on the leeward side so that a specific surface of the support frame 3 can easily face a change in wind direction. A windmill in a form provided with a wind guide member 8 in a shape that allows wind from below to be introduced in the rotational direction of the impeller 2 from the lower part to the rear of the impeller 2 is used to rotate the rotational force of the impeller 2 A power generation device that is capable of generating power by being transmitted to the generator 10 by the transmission mechanism 9 A. Then, if necessary, a solar cell light receiving portion 11 is attached to the upper outer surface of the support frame 3 so that solar power can be generated. Although not shown, the side surface portion of the support frame 3 or the vertical tail 7 is attached to the support frame 3. The function of an advertising tower is added by applying characters and designs.

  Moreover, as shown in FIG. 4, the wind power generator 1 of the invention may have a configuration in which the impeller has a two-stage type, and may have a further multi-stage type as necessary. Then, as shown in FIG. 5, the vane by the air guide member 8 is obtained by rotating the lower part so that the shaft is fixed and at least the lower part can be rotated with the air guide member 8 as an axis at the middle top. In some cases, the amount of air flow in the rotational direction of the vehicle 2 can be adjusted. In the following, main parts, devices, etc. associated with the wind power generator 1 including other embodiments will be additionally described.

  The impeller 2 may normally have about 4 to 6 rotor blades and may be a flat plate. However, from the viewpoint of enhancing the wind receiving effect, it is preferable to provide a shape portion similar to a dogleg shape or a curved shape. In the character shape, it is preferable that the inner angle is about 100 to 150 degrees. The connecting method of the rotor blade and the rotating shaft is not limited as long as it can be integrated and the object of the present invention can be achieved. The material may be a metal such as iron or a high strength and high durability material such as high strength plastic, but is not limited as long as the object of the present invention can be achieved. Further, the impeller 2 is provided with a cut portion in which the intermediate portion of the rotor blade is reduced as much as possible in order to incorporate the rotation transmission mechanism 9 into the intermediate portion of the support frame 3, or the impeller 2 is connected. In some cases.

  The support frame 3 includes a main support part 3a having a support mechanism for supporting the impeller 2 by a main component and a thin plate-like side part 3b. Although the material according to the material described in the impeller 2 can be considered as a material, it will not be limited if the objective of this invention can be achieved. As a method for supporting the impeller 2, for example, a supporting method incorporating a mechanism similar to a ball bearing can be considered in accordance with a method commonly used for supporting a rotating shaft of an existing rotating machine, but the object of the present invention can be achieved. There is no limitation. A streak-like reinforcing member 3c is attached to the outer surface of the side portion 3b as necessary. Further, a wind increasing member 3d having an angle of about 30 degrees upward from the horizontal plane for increasing the amount of wind received that contributes to the rotational force of the impeller 2 may be attached to the windward tip of the upper surface of the side portion 3b. preferable. The size is not limited as long as the object of the present invention can be achieved, but the height / width as a dimensional ratio on the opening side is about 1/1 to 3 and the side width approximates the rotating diameter of the rotor blade. It is preferable to use a substantially cylindrical shape.

  The rotation support mechanism part 4 is fastened to the support frame 3 at the upper part and is tightly connected to the support base part 5 at the lower part, and is supported in consideration of not only the support from the lower side of the support structure 3 but also the horizontal direction and lifting prevention. Is built in. As a structure for enabling smooth rotation, for example, a mechanism similar to a ball bearing or a member whose frictional resistance is reduced by mixing polytetrafluoroethylene, graphite or the like with another plastic material is a sliding member. It is possible to use a mechanism that incorporates a mechanism that uses a lubricant such as oil or a mechanism that incorporates a lubricant such as oil, but achieves the object of the present invention by reducing frictional resistance and ensuring smooth rotation and upper support strength. It is not limited if possible. Further, when the scale becomes large, it is preferable to attach an auxiliary rotation mechanism portion 4a using a roller mechanism, a sliding member or the like to the outer peripheral side of the support frame 3 as necessary.

  The structure of the support base 5 is mainly a steel frame or a reinforced concrete structure, but is not limited. The specification is appropriately set depending on conditions such as a scale and an installation location. In particular, when it is installed on the roof of a building, it is preferable to consider weight reduction and reduction of wind receiving pressure. Further, the ground or the building may be fixed to the frame portion 12 or the like by a method according to a fixing method usually used in the current civil engineering construction work.

  The windbreak member 6 has a triangular cross-sectional shape or apex in which the apex angle protruding forward is in the range of about 60 to 90 degrees in consideration of wind receiving resistance and the wind guide effect to the impeller side. A shape having a cross-sectional shape similar to the shape of a part of an ellipse in contact with is preferable. Although the material according to the material described in the impeller 2 can be considered as a material, it will not be limited if the objective of this invention can be achieved. Fixing to the support frame 3 is mainly performed by welding or bolts at both ends, if necessary, at the lower end portion and the intermediate portion via reinforcing members. Further, it is preferable to reinforce appropriately with a reinforcing member other than the fixed installation, and it is also preferable to cover the portion corresponding to the base of the triangle with a thin plate in order to enhance the air guide effect of the air guide member 8.

  The shape of the vertical tail 7 is not limited as long as the object of the present invention can be achieved. However, the vertical tail 7 is thin and lightweight while ensuring strength, and has a portion protruding from the upper part of the support frame 3 so as to be separated from the rotating shaft. A shape that can secure a larger surface is preferable. Although the material according to the material described in the impeller 2 can be considered as a material, it will not be limited if the objective of this invention can be achieved. Although there are parts that are directly fixed to the support frame 3, they are mainly fixed by welding or bolts via an auxiliary member, and the material and shape of the auxiliary member have strength, wind resistance, etc. It will be decided as appropriate.

  The air guide member 8 is not limited as long as it can guide the wind in the rotational direction of the impeller 2 and reduce the wind receiving resistance of the air guide member 8 as much as possible. Although the entire shape may be stationary, it is preferable that the upper part is fixed and the lower part is rotatable. In the case of the square shape, if the whole is stationary, the upper part is fixed at an angle in the range of about 60 to 90 degrees, and the lower part is fixed appropriately in the range of about 10 to 50 degrees below the horizontal. Is done. When the lower part can be rotated, the lower part can be rotated in a range from the lower end of the wind-proof member 6 to about 50 degrees below the horizontal so that the position can be fixed at an arbitrary angle within the range. A control mechanism is provided so that the amount of airflow in the rotational direction of the impeller 2 can be adjusted, and the contribution of the airflow to the rotational force of the impeller can be increased during low winds and decreased during high winds. Is preferred. Although the material according to the material described in the impeller 2 can be considered as a material, it will not be limited if the objective of this invention can be achieved. Moreover, the fastening method to the support frame 3 is fastened by an appropriate method capable of achieving the object of the present invention, and is not limited.

  As the rotational force transmission mechanism 9, a transmission mechanism having as little rotational force transmission loss as possible is used, and a mechanism using a gear, a belt, or the like is conceivable. However, the mechanism and the arrangement method are not limited as long as the object of the present invention can be achieved. The arrangement position may be arranged on a side portion of the support frame 3, but may be arranged at an intermediate portion of the support frame 3. Further, an appropriate speed change mechanism is incorporated as necessary.

  The generator 10 is not limited as long as it can be applied to the wind power generator 1, but is preferably as small as possible and preferably has high power generation efficiency, and is preferably disposed in the vicinity of the center of the lower rear portion of the impeller 2. There is no limitation.

  The light receiving portion 11 of the solar cell is preferably lightweight and has high power generation efficiency, and is mainly attached to the upper outer surface of the support frame 3. However, if necessary, the light receiving portion 11 can be disposed at a place where the side outer surface and the vertical tail 7 can be disposed. It is also preferable to add it. Moreover, the specification as a solar cell will not be limited if the objective of this invention can be achieved.

  Hydrogen gas for fuel cells that can be used as a global environment-friendly power generation device to replace thermal power generation, which is a cause of deterioration of the global environment such as global warming, and nuclear power generation, where safety remains an issue, and is expected in the future It can also be used for manufacturing by electrolysis.

Sectional drawing of one Example of the wind power generator of this invention Front view of the example of FIG. Side view of the example of FIG. 1 is a sectional view of an example in which the impeller of the example in FIG. Sectional view of an example when the lower part of the air guide member is rotatable

Explanation of symbols

DESCRIPTION OF SYMBOLS 1; Wind power generator 2 of this invention 2; Impeller 3; Support frame 3a; Main support site | part 3b of support frame: Side part 3c of support frame 3d streak reinforcement member 3d; Wind increasing member fixed to the upper windward protrusion 4; rotation support mechanism part 4a; auxiliary rotation support mechanism part 5; support base part 6; windproof member 7; vertical tail 8; wind guide member 9; Mechanism 10; Generator 11; Light receiving part 12 of solar cell; Ground surface or building frame part, etc.

Claims (6)

  An impeller with three or more plate-like rotor blades projecting radially from the rotating shaft and having the rotating shaft in the horizontal direction is used, and a frame-shaped support frame that supports both ends of the impeller is connected and supported horizontally. A rotating support mechanism part that can rotate in the direction and a support base part that supports and supports the rotating support mechanism part, and a windbreak member that can windproof the lower half of the rotation range of the impeller is provided on the windward side of the support frame. A wind power generator using a wind turbine with a vertical tail for allowing a specific surface of the support frame to easily face a change in wind direction on the side, from the bottom to the rear of the wind protection member A wind power generator characterized in that a wind guide member having a shape capable of introducing wind from the lower side of the member into the rotation direction of the impeller is provided.   The windproof member has a cross-sectional shape similar to a shape of a part of an ellipse that touches two sides of a triangle having a vertex angle in the range of about 60 to 90 degrees projecting forward or its apex. The wind turbine generator according to claim 1, wherein   The said air guide member is the air guide member which has comprised the cross-sectional shape of the character-shape or curve shape which is effective for the air to guide the wind to the rotation direction of the said impeller. The wind power generator according to claim 2.   The air guide member is fixed in position so that at least the lower part can rotate with the intermediate top as an axis, and by rotating the lower part, the amount of air flow in the rotational direction of the impeller of the air guide member can be reduced. The wind turbine generator according to claim 3, wherein the wind turbine generator is adjustable.   The wind power generator according to any one of claims 1 to 4, wherein a solar cell light receiving portion is attached to at least an upper outer surface of the support frame so that solar power generation can be performed.   The wind turbine generator according to any one of claims 1 to 5, wherein a character or design is applied to a side surface of the support frame or the vertical tail to add a function as an advertising tower.

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