Vertical cylindrical rotor wind-receiving blade opening / closing type wind power motor

Abstract

[Problem] The current vertical wind power generators have low power efficiency, resulting in low electricity generation capacity, and due to this factor, the installation of these power generators is still not widespread in the market, and in order to promote widespread use of small vertical generators in the future, there is a need to enhance the electricity generation capacity by improving the current wind power generator systems to increase the power efficiency and enhance the electricity generation capacity. [Solution] Conventional vertical wind power generators include Darrieus type, Savonius type, and straight type, but despite being in practical use, these are not widespread. The contributing factors and causes include a problem with rotor start-up. The insufficient rotor torque, which as a matter of course makes it difficult to achieve sufficient electricity generation capacity, is also presumed to be a cause. In order to generate electricity with a vertical wind power motor, it is considered to be necessary to renew the design by devising a wind power generator having a structure capable of increasing the rotor torque of a wind turbine and efficiently rotating the generator at a low to high rotation speed to achieve sufficient electricity generation efficiency. Thus, on the basis of a completely new idea, crescent-shaped paddle-type wind-receiving blades are disposed on the upper surface of a drum-shaped cylindrical rotor, on surface portions of the rotor, one end of each of the wind-receiving blades is disposed via a support shaft, and a spring is disposed inside the support shaft. When rotating by being exposed to wind, the wind-receiving blades each open with the support shaft as a fulcrum on the outside of the cylindrical rotor, catch the wind, and rotate, and when in reverse, the wind-receiving blades are configured to rotate by merging with the cylindrical rotor, overlapping the surface portions of the cylindrical rotor due to the action of the spring

Description

Vertical cylindrical rotating body wind receiving wing opening / closing type wind power generator

[0001] As a countermeasure against global warming, the movement towards decarbonization has been activated. Devices that utilize renewable energy such as solar power, wind power, geothermal energy, ocean currents, and wave power as power sources have been developed by predecessors in various systems and devices. It is assumed that the development of more efficient, cheaper, and effective devices will continue in the future. The present invention is also made based on this main idea. It constitutes a device that rotates a windmill using wind power and utilizes the power for power generation. There are various methods for this, but the present invention devises the structure of a device that generates power from a new perspective by considering the structure of a conventional power generation device mechanism and assembles a device that generates power.

[0002] When the air covering the earth moves, wind is generated, and when the flow rate increases, the wind speed increases. By arranging a device that becomes a wind power generator, which is composed of members processed into respective shapes, in the place where the wind flows, the wind power device is made to act and converted into rotational power for utilization. This is what a wind power generator is. Wind power generators are roughly classified into horizontal and vertical types, each having its own advantages and disadvantages. Among horizontal wind power generators, the propeller type is the most popular type with a high power coefficient and tip speed ratio, widely spread from small to large sizes. The vertical type also includes various lift type and drag type methods such as Darrieus, Savonius, straight blades, and S-shaped blades. Although there are some difficulties in terms of efficiency, it is utilized by taking advantage of its simple structure feature, but it has not reached mass popularity.

[0003] Patent No. 545592

[0004] While vertical wind turbines, such as the Dowrys type and straight-wing type, are suitable for smaller turbines and have relatively high power coefficients, their performance is still inferior to propeller-type turbines. Further improvements to the mechanism are needed to enhance wind power efficiency. Thus, the present invention aims to improve the efficiency of small lift-type wind turbines by starting with a new idea and developing and implementing improvements to the device for improving the efficiency of the wind power generator. Conventional methods have been inefficient and have not been able to generate sufficient power, making them unsuitable for practical use and thus preventing widespread adoption. Therefore, the development of a groundbreaking system that overcomes these problems was crucial, and the development of a method that overcomes these problems was necessary.

[0005] In light of the aforementioned problems, this invention proposes a method for utilizing wind power as efficiently as possible. Instead of using wind power to rotate the wind-receiving blades by generating lift and drag through the wind pressure acting on them, as has been done in the past, this method utilizes the wind pressure acting perpendicular to the wind-receiving blades as rotational force, thereby increasing rotational torque by making maximum effective use of the wind pressure. This method involves attaching wind-receiving blades, similar to paddle-shaped blades with bow-shaped side edges, to a cylindrical rotating structure such as a drum, so that they fit into the upper surface of the rotating structure, thereby rotating the cylindrical structure. [Means for solving the problems]

[0006] A wind turbine is a device that uses propellers or blades to receive wind power and convert that force into mechanical rotational power. If this power is used to rotate a generator and convert it into electricity, it becomes a wind turbine, which can be used for a variety of other power sources. The present invention aims to efficiently convert the generated wind power into rotational power as effectively as possible, and is being made to further improve efficiency from already developed methods. In order to increase the power coefficient of conventional wind turbines, the structure has a configuration that is not found in conventional methods, and the power coefficient can be improved. The most distinctive feature of the wind turbine of the present invention is that the outer circumference of the drum-shaped cylindrical rotating body has a unique structure in which the ends of the wind-receiving blades are connected by a straight chord, forming an arc shape, and the inner surface is dish-shaped. The wind-receiving vanes, which have a recessed structure, cover the outer surface of a cylindrical rotating body and rotate. A specific number of vanes, for example, three to eight, are arranged and mounted on the upper surface of the cylindrical rotating body according to the design number. A rotating connecting fitting that serves as a support shaft is attached to the forward end of the wind-receiving vane, and the wind-receiving vane and the cylindrical rotating body are connected by a bracket. The repulsive action of a spring installed in the pivot fitting shaft is used to rotate the cylindrical rotating body from the foremost position on the windward side (0°) to the rearmost position on the leeward side (180°) as the wind-receiving vane rotates with the aforementioned structure. The wind-receiving wing opens at a 90° angle on the cylindrical rotating body and rotates in response to wind force. During the 180° rotation of the cylindrical rotating body that receives wind, a support shaft is connected to the tip of the wind-receiving wing on the forward rotation side. Starting from this support shaft, the wind-receiving wing, with its ends shaped like a bow, opens at a 90° angle from the support shaft, due to the action of cams and springs inside the support shaft, guides, and rollers. The wind-receiving wing, which has rotated to the 180° point on the downwind side, is positioned on the outside. Utilizing the action of closing rollers and springs housed in the support shafts, the wind-receiving blades cover the entire cylindrical rotating body, including both ends, and the 90° open wind-receiving blades become one with the cylindrical rotating body. The cylindrical rotating body then reverses from 180 degrees to 360 degrees, the foremost angle on the windward side. The wind-receiving blades rotate with the minimum drag from the opposing wind and rotate half a turn to correspond to the wind-receiving period of the next rotation, so that the wind-receiving blades open to 90° again during the next rotation.

[0007] In this way, when a cylindrical rotating body rotates once, the wind-receiving fins open 90° when rotating and then reverse direction, the wind-receiving fins receive wind from the back of the fins and cover the cylindrical rotating body. The drag force received by the wind-receiving fins causes the cylindrical rotating body to rotate half a turn, and during the next half turn, the wind-receiving fins are in close contact with the cylindrical rotating body, creating a mechanism that minimizes the drag force received by the cylindrical rotating body as it rotates.

[0008] In the present invention, even a single cylindrical rotating body can rotate, but it is also possible to configure a system in which two rotating bodies are placed side by side relative to the wind direction to form a set, with one rotating body wind-receiving vane wind power generator on each side to receive the wind. It is also possible to configure a system in which the wind-receiving vanes rotate in opposite directions relative to the wind direction, and the rotational torque is combined by the combined action of gears around the axis of the cylindrical rotating body to drive a generator or pump, or a system in which the cylindrical rotating body device rotates outward, or a system in which cylindrical rotating bodies are arranged vertically and horizontally and rotated, and the invention is not limited to a rotation method with only one cylindrical rotating body.

[0009] While conventional vertical-axis wind turbines developed by previous generations include known lift-type and drag-type turbines, each type of wind turbine, which converts wind power—a naturally renewable energy source generated on Earth—into mechanical power, has its own unique power coefficient. Naturally, the higher the power coefficient, the more efficient it is, and when used as a generator, assuming the same manufacturing cost for different types of wind turbines, higher efficiency means lower electricity costs per unit, making it possible to use electricity economically. Therefore, designing and creating an efficient wind turbine is a crucial point, and this invention develops a mechanism to rotate a wind turbine with a simple configuration that is highly power-efficient. In conventional vertical drag wind turbines, a certain amount of drag is generated by the wind-receiving blades during the 180° period when the wind turbine completes a 360° rotation. However, when the turbine reverses direction from 180° to 360°, it rotates facing the same wind direction, resulting in resistance. The drag generated during wind reception is offset by the resistance during the reversal, thus reducing the drag. However, in the present invention, this reduction in offsetting effect is less than in conventional vertical drag wind turbines, allowing the generated drag to be effectively transmitted to the rotating axis, increasing the rotational torque. Therefore, even among vertical drag wind turbines, the present invention directly converts wind power into rotational power, resulting in a larger rotational torque compared to conventional wind turbines that convert the effect generated by the wind-receiving blades into rotational power.

[0010] Plan view of a cylindrical rotating body Side view of a cylindrical rotating body Plan view of an open-type bow-shaped wind deflector in calm conditions Front view of an open-type bow-shaped wind deflector in calm conditions Plan view of an open-type bow-shaped wind deflector in wind conditions Plan view of a cam-type wind deflector in wind conditions Plan view of a roller-closed wind deflector in wind conditions Plan view of an outer ring-guided wind deflector in wind conditions Plan view of a two-row arrangement of an inner-rotating roller-opening wind deflector Plan view of an outer-rotating roller-opening wind deflector Arrangement Plan View Side view of the wind turbine of the present invention in an inner-rotating configuration Enlarged view of frame E in Figure 3 Plan view of cam contact position when wind deflector is fully open Plan view of cam contact position when wind deflector is half-open Front view of cam contact position when wind deflector is fully open Front view of cam contact position when wind deflector is half-open Enlarged view of frame F in Figure 2

[0011] The basic configuration of the cylindrical rotating wind vane wind power generator of the present invention can be classified into four basic types: open wind vane opening and closing type, cam-guided link type, roller wind vane opening and closing type, and paddle-ring guided wind vane type. In this structure, a cylindrical rotating body has three to eight wind-receiving fins arranged at equal intervals. When the wind-receiving fins receive wind and rotate, the sides of both ends of the wind-receiving fins, which previously covered the surface of the cylindrical rotating body, are bow-shaped. The front of the rotating fins is supported by a bracket at the end of the cylindrical rotating body, and the opposite end opens outwards to receive the wind, causing the cylindrical rotating body to rotate. In each of the aforementioned methods, the cylindrical rotating body is positioned perpendicular to the wind direction, and the wind-receiving fins receive wind and rotate. The wind-receiving fins start to rotate when they receive wind from the front of the cylindrical rotating body. After receiving 180° of wind, the fins have completed half a rotation and are in a reversed state. When each fin returns to its starting position, it receives wind from the back of the fin, causing it to deflect the wind. As a result, the rotational force acting on the fins is not zero, but it is extremely small and has little effect on the rotational force. The wind blows through the fins and does not significantly affect their rotation.

[0012] The operation of each system will be explained below with reference to the figures. Figure 1 is a plan view of the cylindrical rotating prime mover in the present invention. The main shaft 1 of the prime mover body is fixedly connected to the prime mover body, and the shaft bearing 3 is connected to the rotating body support shaft and is stationary and does not rotate. The main shaft and the rotating body support shaft 2 are connected by support shaft bearings 3 located above and below. The rotating body 5 and the support shaft 2 are connected by support shaft bearings 4 located above and below, and the rotating body 5 and the support shaft 2 are connected by support shaft bearings 4, allowing for free rotation. Figure 17 is an enlarged view of the arrangement of the shaft and bearings in Figure 2, allowing for visual confirmation of the details of each arrangement. Figure 3 shows the wind-receiving vanes 10a to 10f of the cylindrical rectangular rotating body in an outward-opening state when there is no wind. Each wind-receiving vane is attached to the prime mover rotating body 5 at equal intervals by a wind-receiving vane support shaft 6 and bracket 9 as shown in Figure 12. Although not shown, a spring is located inside the support shaft so that each wind-receiving vane 10a to 10f opens 90° outward from the center point of the rotating body 5 on the opposite side of the support shaft. Figure 4 shows the front view of the wind-receiving vanes of the open-type circular rectangular prism of the present invention in an outward-opening state when there is no wind. All wind-receiving vanes 10 are shown in an outward-opening state. They are designed to open outward due to the action of a spring located inside the support shaft 6. Therefore, when wind blows towards the cylindrical rectangular prism as shown in Figure 5, the wind hits the back surface of the wind-receiving vanes 10e and 10f as the body rotates, but the wind hits the back surface of the wind-receiving vanes as shown in Figure 5. Because the wind force is stronger due to the force acting on it (which is not being applied), the wind-receiving blades 10e to 10f cover the upper surface of the prime mover rotating body 5 with the support shaft 6 as the pivot point, and the wind pressure does not act on the wind-receiving blades, causing them to rotate in the direction of rotation 7. When the wind-receiving blades have rotated to the position of 10a, the wind-receiving blades open again to the outside of the prime mover rotating body 5 due to the action of the spring inside the support shaft 6 and the action of the wind pressure, and the wind-receiving blades receive the wind and become the rotational force of the prime mover rotating body 5, thus this is a wind-receiving blade open type.

[0013] In Figure 12, the support shaft 6 is attached to a predetermined position on the rotating body 5 by a bracket 9, resulting in the arrangement shown in the figure.

[0014] Figure 6 is a plan view of the cam-type wind-receiving blade opening and closing mechanism in the wind power generation prime mover of the present invention. Structures such as wind-receiving blade opening and closing cams 11 are arranged at both the upper and lower ends of the cylindrical rectangular rotating body 5. A roller 12 attached to the tip of a link 13 connected to the wind-receiving blade support shaft 6 slides over points A and B on the outer circumference of the cam 11 in the figure. As the wind-receiving blade 10 rotates once, the roller 12 of the wind-receiving blade 10 slides over the outer circumference of the wind-receiving blade opening and closing cam 11, causing the wind-receiving blade 10 to receive wind at a 90° angle from the cylindrical rotating body 5 and rotate the cylindrical rotating body 5. As the rotation progresses and reaches point C of the opening and closing cam 11, the wind-receiving blade 10, due to the action of the link and roller, then covers the rotating body due to the action of the spring inside the wind-receiving blade support shaft 6, becoming one with the rotating body 5, and the rotational force of the wind-receiving blade disappears without being generated.

[0015] Figure 7 is a plan view showing the basic configuration of the roller-closed wind-receiving vane system. When the wind-receiving vane makes one rotation, the roller 13 is positioned on the outer circumference of the wind-receiving vane as shown in Figure 7 during the period when the cylindrical rotating body is closed. During the period when the wind-receiving vane receives wind from the back and rotates, the roller 13 is positioned on the back of the wind-receiving vane. The roller 13 contacts the back of the wind-receiving vane, covering it over the cylindrical rotating body and stopping the generation of rotational force on the wind-receiving vane as it rotates. When the cylindrical rotating body reaches an angle in which it receives wind and rotates, the wind-receiving vane is opened outwards by the action of a spring (not shown) built inside the support shaft 6 so that it can receive wind again and rotate. In this way, the action of the roller 13 makes it possible for the wind-receiving vane to repeatedly open and close during one rotation.

[0016] Figure 8 shows a mechanism in which wind-receiving blades are guided by wind-receiving blade outer frame guide grooves 14 are positioned at both ends of a cylindrical rotating body, and a wind-receiving blade outer frame guide roller 15 is positioned at the tip opposite the support shaft 6 of the wind-receiving blade. When the wind-receiving blade rotates, the guide roller 15 rotates and slides within the guide grooves 14, guiding the opening and closing motion of the wind-receiving blade. A spring is built into the support shaft 6 and constantly acts in the direction that opens the wind-receiving blade.

[0017] Figure 9 shows an example of a roller-closed wind-receiving vane. As described in

[0015] above, this method involves arranging a specific number of paddle-shaped crescent-shaped wind-receiving vanes on the upper surface of a cylindrical rotating body 5, and arranging two wind-receiving vanes side by side to receive the wind and rotate. In this case, it is possible to consider a method in which the wind-receiving vanes of the wind-receiving vanes rotate inward on both sides, or a method in which they rotate outward as shown in Figure 10. Either method can be adopted, but for compact construction, the inward orientation seems more appropriate.

[0018] Figure 11 shows an example of an embodiment of the present invention, in which two cylindrical rotating bodies of the present invention are arranged in two rows on the left and right, and each member is fixedly connected by a frame 24, and the wind-receiving vanes are set to rotate inward, and it is a wind-receiving type, in which gears connected to the rotating shaft are connected inside the lower frame, and the rotation of the drive shafts 2 which are arranged on the left and right and rotate in opposite directions is aligned via idler gears 21 to rotate the generator 19 and generate electricity. The upper part is equipped with a propeller-type or wind vane-type anemometer, and inside the nacelle there are instruments and sensors that measure various data such as power generation amount, temperature, wind speed, etc., and equipment that transmits the measured data to a base station over the internet. A plate plate that serves as a rudder 17, which is a direction control mechanism, is placed on the outside of the rear of the nacelle, and the wind-receiving vanes at the rear of the rotation are set to constantly face the wind direction to generate electricity, thereby controlling the rotation direction of the generator. In the diagram, the nacelle is shown in a side view, which is done to make the nacelle structure easier to understand, but it would be more accurate to show a front view.

[0019] The present invention provides a cylindrical rotating prime mover that is durable enough to continue rotating without being destroyed even in winds ranging from zero meters per second to high-speed winds like those during typhoons. If it is not designed to be durable enough to continue rotating without being destroyed, the purpose of creating it will be lost, and it may end up being an impractical device. To this end, in order to control the rotation of the wind-receiving blades to correspond to low and high speed ranges, a mechanism is provided to control the angle at which the wind-receiving blades open. This mechanism involves support shaft roller attraction magnets 29 being placed at both ends of the cylindrical rotating body. When current flows through the magnets, the rollers of the wind-receiving blade support shafts are attracted by the magnets and move, causing the contact position with the cam to move and the contact point with the cam to change, thereby forcibly changing the opening degree of the wind-receiving blades. This weakens the intensity of the wind received by the wind-receiving blades, reduces the rotational force, and suppresses rotation, thus providing a mechanism to reduce rotational force. Figure 13 shows that when the wind-receiving blade rotates at low speeds, it opens horizontally from the centerline of the rotating body in the direction of rotation, opening at a 90° angle to the wind direction. To accommodate wind speed, the opening degree is determined by the contact position between the cam and the link or roller when the wind-receiving blade is fully open. Figure 14 shows that the position where the roller and cam determine the opening degree when the blade is half-open is controlled.

[0020] Figure 15 shows the positional relationship between the link and the roller cam when the opening is fully open. Magnets are positioned above and below the rotating body, and when the magnets are activated by an electrical signal from the wind speed sensor, the roller on the support shaft is attracted to the magnet, and the opening of the wind-receiving blade is determined. Figure 16 shows the contact state between the roller and the cam when the opening is halfway open.

[0021] This invention provides a powerful mechanism for generating rotational momentum by receiving wind power with a wind-receiving wing. Unlike conventional methods where propellers, blades, or wind-receiving wings convert wind power into lift or drag, this system directly receives wind from the wind-receiving wing and converts it into rotational force, allowing for maximum utilization of wind power. Its range of applications is wide, from small to large, and it can be installed and used in any place where wind is present, unless there are specific limitations on installation. In the future, it will contribute to measures to prevent global warming and CO2 emissions. ２ In the midst of the growing movement for reduction, the development of this proposed method is expected to have a significant impact.

[0022] The utilization of various types of natural renewable energy sources such as wind, wave, solar, geothermal, biomass, and hydropower, and the significant reduction in costs compared to power generation using fossil fuels, are of great significance and are expected to make a substantial contribution to and contribute to economic development. An increase in systems that further utilize natural energy will bring meaningful effects, representing a revolutionary development for future generations of humanity. Since wind power is dependent on weather conditions, when winds are weak, multiple small generators of this type can be operated to meet the power needs, and when winds are strong, larger prime movers of this type can be rotated to generate electricity for use in many locations. By adopting a flexible operation system and a diverse generator installation system, as well as measures to address windless conditions such as battery storage and power usage smoothing, it is important to take measures to reduce power generation using fossil fuels, which is an effective strategy for important issues. Furthermore, with the expected development of electric vehicles in the future, it is important to connect surplus generated electricity to the battery when the vehicle is stopped to constantly charge the battery and ensure economical operation.

[0023] [Explanation of Symbols] 1 Main shaft of the cylindrical rotating prime mover body 2 Main shaft supporting the cylindrical rotating body 3 Main shaft bearing 4 Support shaft bearing 5 Cylindrical rotating body 6 Wind-receiving blade support shaft 7 Wind-receiving blade rotation direction 8 Wind direction 9 Bracket 10 Wind-receiving blade 10a. b. c. Wind-receiving blade 10d. e. f. Closed wind deflector 10g Half-open wind deflector 11 Wind deflector opening / closing cam 12 Wind deflector opening / closing roller 13 Wind deflector opening / closing link 14 Wind deflector outer frame guide 15 Wind deflector outer frame guide roller 16 Instrument bay (nacelle) 17 Rudder 18 Support base 19 Generator 20 Rotation direction 21 Idler gear 22 Drive gear 23 Anemometer 24 Main frame 25 Inner cam contact when fully open 26 Outer cam contact when fully open 27 Inner cam contact when half-open 28 Outer cam contact when half-open 29 Support shaft roller attraction magnet Point A: Cam, roller angle change position Point B: Cam, roller rising point Point C: Cam, roller angle change position Point D: Cam, roller descending point Figure 12E Enlarged view of bracket Figure 17F Enlarged view of bearing arrangement

Claims

1. A mechanism in which a set number of wind-receiving blades are attached to the surface of a cylindrical rotating body at predetermined positions on the outer circumference of the rotating body by support shafts, with springs placed inside the support shafts. During the wind-receiving stroke, the wind-receiving blades open outward with the support shafts of the cylindrical rotating body as the pivot point, generating rotational starting force while receiving wind. When it returns to the starting point after a half rotation, the wind-receiving blades operate to cover the cylindrical rotating body while closely adhering to it, and the mechanism rotates using the wind pressure acting on the wind-receiving blades. This mechanism can be an open type, a roller type, an outer frame guide type, or a cam opening / closing type. In the open type, the wind-receiving blades open outward when there is no wind. In the roller type, a roller positioned to close the wind-receiving blades is operated when the wind-receiving blades return. In the outer frame guided type, a roller is placed at the outer end of the wind-receiving blade, and when the wind-receiving blade returns, the roller slides within the outer frame where it is placed, and when it reverses direction, it operates to close the wind-receiving blade towards the rotating body. In the cam opening / closing type, a link and roller are connected to the wind-receiving blade support shaft, and opening / closing cams are placed at both the upper and lower ends of the cylindrical rotating body, and the roller slides on the sliding surface of the opening / closing cam, so that when it receives wind, the wind-receiving blade opens to the outside of the rotating body and starts to rotate, and when it reverses direction and returns, it has the function of covering the rotating body by the action of a spring inside the support shaft. These are the characteristics of the vertical wind cylindrical rotating body prime mover.

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