Vertical cylindrical rotor with open / close blades for wind power generation

Abstract

To provide a vertical wind turbine generator system with improved power efficiency and increased power generation capacity. [Solution] Based on a completely new idea, this application arranges crescent-shaped paddle-shaped wind receiving blades 10a, which will serve as wind receiving blades, on the surface of the drum-shaped rectangular rotating body, and a support shaft is attached to one end of the wind receiving blade 10a, with a spring placed inside.When rotating in response to the wind, the wind receiving blades open on the outside of the circular rectangular rotating body, using the support shaft as a fulcrum, and rotate in response to the wind, and when rotating in reverse, the action of the spring inside the support shaft causes the wind receiving blades 10a to cover the surface of the cylindrical rotating body and combine with the cylindrical rotating body.

Description

[Technical Field]

[0001] As a measure against global warming, the movement towards decarbonization is gaining momentum, and our predecessors have developed a wide variety of systems and devices that utilize renewable energy from natural renewable energy sources such as solar, wind, geothermal, ocean currents, and wave power as their power source. It is expected that the development of even more efficient, inexpensive, and effective devices will continue in the future, and the present invention was made based on this aim. There are various methods for constructing a device that uses wind power to rotate a windmill and use the resulting power to generate electricity, but the present invention is a device that has been made by assembling a power generating device by devising a structure based on ideas from a new perspective on conventional power generating device mechanisms. [Background technology]

[0002] When the air covering the Earth moves, wind is generated, and as the flow speeds up, the wind speed increases. A wind motor is a device made up of components processed into a specific shape that is placed in the flow of the wind. The device is then used to convert the wind power into rotational power, creating a wind motor. Wind motors can be broadly classified into horizontal and vertical types, each with its own advantages and disadvantages. Among horizontal wind motors, the propeller type has the highest power coefficient and peripheral speed ratio, and is the most popular type, widely used in small to large sizes. Vertical types also have a variety of lift and drag types, such as Daulis, Zaponius, straight blade, and S-shaped. Although they have some drawbacks in terms of efficiency, they are used due to their simple configuration, but have not yet been widely adopted. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 545592 Summary of the Invention [Problem to be solved by the invention]

[0004] Although vertical wind turbines are small, Daulis and straight blade types have relatively high power coefficients, but their performance is still inferior to that of propeller turbines. Further improvements to the mechanical configuration are needed to improve wind power efficiency. This invention achieves this by starting from a new concept to improve the efficiency of small lift-type wind turbines, devising and implementing improvements to the wind power generator. Previously developed wind turbines have been inefficient and unable to generate sufficient power. From a practical standpoint, they are insufficient to generate the necessary power. This lack of efficiency is thought to be the reason they have not been widely adopted. Therefore, it was important to develop an innovative system that overcomes these problems, and a system that overcomes them was needed.

[0005] In view of the above-mentioned problems, this application proposes a method of utilizing wind power as efficiently as possible, which has been based on the conventional method of rotating the blown blades by the lift and drag generated by the wind pressure acting on the blown blades, but instead utilizes the wind pressure acting perpendicular to the blown blades as rotational force to maximize the effective use of wind pressure, thereby increasing the rotational torque. This method involves attaching wind blades similar to crescent-shaped paddles that fit into the upper surface of a cylindrical rotating structure such as a drum can, and rotating the cylindrical structure.

[0006] A wind power motor is a device that receives wind power with a propeller or blade and converts that power into mechanical rotational power, but if that power is used to rotate a generator and convert it into electricity, it becomes a wind power generator, and it can be used for other power sources as well. The purpose of the present invention is to convert the generated wind power into rotational power as efficiently as possible, but it is made to further improve the efficiency of already developed methods, and in order to increase the power coefficient of conventional wind turbines, a structure that has not been used in conventional methods can be used to improve the power coefficient, but the greatest feature of the wind power motor of the present invention is that it has a drum-shaped cylindrical rotor on the outer periphery. The unique structure of the present invention is that the ends of the wind-receiving blades are connected by a straight chord on a circular arc, and the inner surface of the blades is a dish-shaped, convex structure. The wind-receiving blades rotate while covering the outer surface of a cylindrical rotor.A specific number of blades, for example 3 to 8 blades, are arranged and attached to the top surface of the cylindrical rotor according to the design number, and a rotating connecting metal fitting that serves as a support shaft is attached to the forward end of the blade, and the blade and the cylindrical rotor are connected by a bracket. Using the repulsive action of a spring loaded inside the supporting metal fitting shaft, the blade rotates from the 0° position at the front of the windward side of the cylindrical rotor to the 180° position at the rearmost position on the leeward side of the wind direction. The wind receiving blade of the above structure The mechanism is such that it opens 90° on the cylindrical rotor and rotates when it receives wind force, and during the 180° that the cylindrical rotor receives wind, a support shaft is arranged to be connected to the cylindrical rotor at the tip of the forward rotation side of the wind receiving blade, and both ends of the wind receiving blade are connected to the cam and spring inside the support shaft on the outside of the cylindrical rotor from the starting point. Bow-shaped The blades open at a 90° angle from the support shaft, and when the blades rotate to the 180° angle on the downwind side, the blades close by using the action of the closing rollers attached to the outer blades and the springs built into the support shaft. The blades then cover the entire cylindrical rotor, including both ends, and become one with the cylindrical rotor. The cylindrical rotor then rotates from the 180° angle to the 360° angle on the windward side. 、 The blades rotate with minimal opposing wind resistance, rotate half a turn to correspond to the wind period of the next rotation, and then open 90° again at the next rotation.

[0007] In this way, when a cylindrical rotor rotates once, the wind blows open 90 degrees and when it rotates in an inverted direction, the wind blows from the back of the blades and covers the cylindrical rotor, causing the cylindrical rotor to rotate half a turn due to the resistance exerted by the blades. During the next half turn, the blades are in close contact with the cylindrical rotor, minimizing the resistance exerted on the cylindrical rotor and allowing it to rotate.

[0008] In the present invention, a single cylindrical rotor can rotate, but two can be arranged side by side against the wind direction to form a set, with the rotors, wind-receiving blades, and wind motors arranged one on each side to receive wind. It is also possible to configure a system in which the wind-receiving blades rotate in opposite directions against the wind direction, and the rotational torque is combined through the combined action of gears at the axis of the cylindrical rotor to drive a generator or pump, or a system in which the cylindrical rotor device rotates outward, or a system in which cylindrical rotors are arranged vertically and horizontally to rotate, and the invention is not limited to a system in which only one cylindrical rotor rotates. Effects of the invention

[0009] There are known lift and drag types of vertical axis wind turbines developed by our predecessors, but each type converts wind power, a naturally renewable energy generated on Earth, into mechanical power and utilizes it, and each has its own unique power coefficient. The higher the power coefficient, the more efficient it is, and when used as a generator, if the manufacturing costs are the same for the type of wind turbine, the more efficient it is, and the cheaper the electricity cost per unit, making it possible to use electricity economically. Therefore, the key point is how to design and create an efficient wind turbine, and the present invention has developed a mechanism to rotate a wind turbine with a simple configuration and high power efficiency. In a conventional normal force type wind turbine, when the turbine rotates 360°, a certain amount of resistance is generated by the swept blades for the 180° period, but when it turns around after 180° and rotates again for 360°, it faces the same wind direction and experiences resistance, so the resistance generated when receiving the wind is canceled out by the resistance when turning around, resulting in a decrease in drag, but in the present invention, this decrease in the canceling effect is less than in a conventional normal force type, so it is possible to effectively transmit the generated drag to the rotating shaft and increase the rotational torque.As a result, even though the present invention is the same normal force type wind turbine, it rotates by directly converting wind power into rotational power, so the rotational torque is large, unlike in a conventional wind turbine where the effect generated by the swept blades is used as rotational power. [Brief explanation of the drawings]

[0010] [Figure 1] Plan view of a cylindrical rotating body [Figure 2] Side view of a cylindrical rotating body [Figure 3] Plan view of an open drum-type wind-receiving blade in calm conditions [Figure 4] Front view of an open drum-type wind-receiving blade in calm conditions [Figure 5] Plan view of an open drum-type fan receiving wind [Figure 6] Plan view of cam-type wind-receiving blades when receiving wind [Figure 7] Plan view of roller-closed wind-receiving blades when receiving wind [Figure 8] Plan view of outer ring induction type wind receiving blade when receiving wind [Figure 9] Plan view of two-row arrangement of roller-opening and closing type wind receiving blades with inner rotation [Figure 10] Plan view of the outer rotation type of roller-opening and closing type wind receiving blades [Figure 11] Side view of the wind turbine generator of the present invention in the inward rotation type [Figure 12] Enlarged view of frame E in Figure 3 [Figure 13] Plan view of cam contact position when fan blade is fully open [Figure 14] Plan view of cam contact position when fan blade is half open [Figure 15] Front view of cam contact position when fan blade is fully open [Figure 16] Front view of cam contact position when air receiving blade is half open [Figure 17] Enlarged view of F frame in Figure 2 BEST MODE FOR CARRYING OUT THE INVENTION

[0011] The basic configuration of the cylindrical rotor type wind power motor of the present invention is the open type wind power motor, the cam guided link type, and the roller wind power motor. Outer ring induction type wind receiving blade system They can be classified into four basic methods: Cylindrical rotating body Three to eight blades are arranged at equal intervals on the rotor, and when the blades rotate, they cover the surface of the cylindrical rotor. The sides of both ends of the wind-receiving blade are bow-shapedThe front of the rotating side is supported by a bracket on the end of the cylindrical rotor, and the opposite side opens outward so that the cylindrical rotor itself rotates when it receives the wind. Using the methods described above, the cylindrical rotor is set up perpendicular to the wind direction and the blades receive the wind and rotate; the blades receive the wind from the front of the cylindrical rotor and begin to rotate, receiving the wind from the wind direction, and after receiving the wind from the wind, they rotate 180° and turn half a turn, and then each blade returns to its starting position at the start of rotation.As the blade receives the wind from the back of the blade and rotates, the blade deflects the wind with its back, so although the rotational force acting on the blade is not zero, it is extremely small and has little effect on the rotational force, and the wind blows through the blades, not enough to affect their rotation. Example 1

[0012] The operation of each method will be explained below with reference to the figures. Figure 1 is a plan view of a cylindrical rotor motor according to the present invention, in which the main motor shaft 1 is fixedly connected to the motor body, and shaft bearing 3 is connected to the rotor support shaft, making it stationary and non-rotating, while the rotor support shaft 2 is connected to the main shaft by support shaft bearings 3 above and below. The support shaft 2 and rotor 5 are connected by rotor support shaft bearings 4 above and below, and the rotor 5 and support shaft 2 are connected by support shaft bearings 4, allowing them to rotate freely. Figure 17 is an enlarged view of the arrangement of the main shaft and bearings in Figure 2, allowing you to see the details of each arrangement. Cylindrical rotating body The blades 10a to 10f are shown in an outwardly open state when there is no wind, and each blade is attached to the blade support shaft 6 at equal intervals by brackets 9 on the motor rotor 5 as shown in Fig. 12, and although not shown, a spring is installed inside the support shaft so that each blade 10q to f opens 90° outward from the center of the rotor 5 on the opposite side of the support shaft. Cylindrical rotating body5 shows a front view of the blades in a windless state. Each blade 10 is shown in an outwardly open state, and is designed to open outward by the action of a spring installed inside the support shaft 6. Therefore, when a wind blows toward the cylindrical rectangular parallelepiped in the direction of wind 8 as shown in FIG. 5, the wind hits the back of the blade as shown in blades 10e and 10f in FIG. 5 as it rotates, but the wind force is stronger due to the action of a spring (not shown) installed inside the support shaft 4, so blades 10e to 10f open outward. d As shown, the blades cover the top surface of the motor rotor 5 with the support shaft 6 as a fulcrum, and the wind pressure does not act on the blades, but they rotate in the direction of rotation 7. When the blades rotate to position 10a, the action of the spring inside the support shaft 6 and the action of the wind pressure cause the blades to open again to the outside of the motor rotor 5, and the blades receive the wind, becoming the rotary motive force for the motor rotor 5, causing it to rotate, in this type of blade opening system.

[0013] In FIG. 12, the support shaft 6 is attached to a predetermined position of the rotor 5 by a bracket 9, and is arranged as shown in the figure. Example 2

[0014] Figure 6 is a plan view of the cam-type wind-receiving blade opening and closing system of the wind power generation motor of the present invention. Cylindrical rotating body Structures formed like blade opening / closing cams 11 are placed at the top and bottom ends of blade 5, and rollers 12 attached to the ends of links 13 connected to blade support shaft 6 slide over points A and B on the outer periphery of cam 11 in the figure, so that when blade 10 makes one rotation, roller 12 of blade 10 slides over the outer periphery of blade opening / closing cam 11, blade 10 receives wind at a 90° angle from cylindrical rotor 5, causing cylindrical rotor 5 to rotate. As rotation continues in this way and reaches point C on opening / closing cam 11, the action of the link and roller causes blade 10 to cover the rotor, and due to the action of the spring in blade support shaft 6, blade 10 becomes one with rotor 5, and the rotational force of the blade is no longer generated and is lost. Example 3

[0015] Figure 7 is a plan view showing the basic configuration of the roller-closing type fan blade system. When the cylindrical rotor is closed during one rotation of the fan, rollers 13 are arranged around the outer periphery of the fan, as shown in Figure 7. When the fan rotates while receiving wind from its backside, rollers 13 are arranged on the backside of the fan, and the rollers 13 come into contact with the backside of the fan, covering the fan over the cylindrical rotor, causing the fan to stop generating rotational force and continue to rotate. When the cylindrical rotor reaches an angle at which it can rotate while receiving wind, a spring (not shown) built into support shaft 6 acts to open the fan outward so that it can again rotate while receiving wind. In this way, the action of rollers 13 allows the fan to repeatedly open and close as it makes one rotation. Example 4

[0016] As shown in Figure 8, guide grooves 14 are arranged at both ends of the cylindrical rotor to guide the blade outer frame when the blade rotates, and guide rollers 15 are arranged at the tip of the opposite side of the blade support shaft 6, so that as the blade rotates, the guide rollers 15 slide and rotate within the guide grooves 14, forming a mechanism that guides the opening and closing movement of the blade. A spring is installed inside the support shaft 6, and it constantly acts in the direction of opening the blade.

[0017] Figure 9 is an example of a roller-closed type wind receiving blade, and as described above in

[0015] , a specific number of paddle-shaped crescent-shaped wind receiving blades are arranged on the top surface of a cylindrical rotating body 5, and two wind receiving bodies that rotate when they receive the wind are arranged side by side on the left and right.In this case, it is possible to consider a method in which the wind receiving blades of the wind receiving body rotate inward on both the left and right, or a method in which they are designed to rotate outward as shown in Figure 10.Either method can be adopted, but it seems that an inward-facing blade is more appropriate for a compact design.

[0018] Figure 11 shows an example of an embodiment of the present invention, in which two cylindrical rotor bodies of the present invention are arranged in two rows, one on the left and one on the right, and each component is fixedly connected by a frame 24, with the wind-receiving blades rotating inward to generate power by wind, and a gear connected to the rotating shaft is connected within 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 an idle gear 21 to rotate the generator 19 and generate power. A propeller-type and aerial-type anemometer are installed on the top, and inside the nacelle are also installed instruments for measuring various data such as power generation amount, air temperature, wind speed, etc., as well as equipment for transmitting data measured by various sensors to a base station via the Internet, and a plate serving as a rudder 17, which is an azimuth control mechanism, is installed on the outside rear of the nacelle, and the wind-receiving blades at the rear of the rotation are constantly facing the wind direction to generate power, thereby controlling the rotation direction of the generator. In the diagram, the nacelle part is shown in a side view, but this is done to make it easier to understand the nacelle structure; the correct view would actually be a front view.

[0019] The cylindrical rotor motor of the present application must be constructed as a durable wind turbine that can continue to rotate without being destroyed even in wind speeds from zero meters to high winds like those experienced during a typhoon; otherwise, there would be no point in creating it and it would end up being useless.To this end, a mechanism is provided to control the angle at which the wind receiving blades open, in order to control the rotation of the wind receiving blades from low to high speeds.Support shaft roller attraction magnets 29 are placed on both ends of the cylindrical rotor, and when current flows through the magnets, the rollers on the wind receiving blade support shaft are attracted by the magnet and move, causing the contact position with the cam to move, changing the point of contact with the cam and forcibly changing the opening of the wind receiving blades.This weakens the strength of the wind received by the wind receiving blades, reducing the rotational force and suppressing rotation, thereby reducing the rotational force. In Figure 13, when the wind receiving blade rotates at low speeds, it opens horizontally from the center line of the rotor in the direction of rotation, opening at an angle of 90° to the wind direction.In order to accommodate wind speeds, the opening degree is determined by the contact position of the cam with the link and roller when the wind receiving blade is fully open.In Figure 14, the position at which the roller and cam determine the opening degree is controlled when the blade is half open.

[0020] Figure 15 shows the positional condition when the link and the troller cam determine their contact position when the system is fully open. Magnets are placed 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, causing the opening of the wind-receiving blades to change. Figure 16 shows the contact condition between the roller and cam when the system is half open. [Industrial Applicability]

[0021] The present invention has a structure that can be a powerful mechanism for receiving wind power with the wind-receiving blades and generating rotational driving force. Unlike the conventional method of converting the wind power received by the propeller, blades, or wind-receiving blades into lift and drag to rotational force, the wind-receiving blades directly receive the wind and convert it into rotational force, making it possible to make the most of wind power. From small to large, the range of application is wide, and it can be widely installed and used in any place where wind occurs unless there are special installation restrictions, and it will be an important tool for preventing global warming and reducing CO 2As the reduction movement gains momentum, the development of this method is expected to have a significant effect.

[0022] The utilization of various renewable energy sources, including wind, wave, solar, geothermal, biomass, and hydropower, and their significant reduction in power generation costs compared to fossil fuels, is of great significance and is expected to contribute greatly to economic development. The expansion of renewable energy systems will bring significant benefits to humanity, revolutionizing the next generation. Because wind power is dependent on weather, when wind is weak, multiple small, primary-type generators are used to cover power consumption, while when wind is strong, large primary-type generators are used to generate electricity for use in multiple locations. This flexible operation and diverse generator installation system, combined with battery storage and power consumption smoothing measures for calm periods, are effective strategies for reducing fossil fuel-based power generation. Furthermore, with the expected future development of electric vehicles, it is important to connect surplus generated electricity to the vehicle's battery when it is stopped, thereby continuously charging the vehicle's battery for economical operation. [Explanation of symbols]

[0023] 1 Cylindrical rotating body Engine main shaft 2 Cylindrical rotating body Support spindle 3 Main shaft bearing 4 Support shaft bearing 5 Cylindrical rotating body 6 Wind blower support shaft 7. Rotation direction of the wind-receiving blade 8 Wind direction 9 Bracket 10 Windblow blade 10a.bc Wind-receiving blade in wind-receiving state 10d.ef Closed state swept blade 10g semi-open wind wing 11 Wind receiving blade opening / closing cam 12 Wind receiving blade opening and closing roller 13 Wind-receiving blade opening / closing link 14. Outer frame guide for receiving blade 15. Outer frame guide roller for receiving blade 16 Instrument well (nacelle) 17 Rudder 18 Support stand 19. Generator 20 Rotation direction 21 Idol Gyaa 22 Drive gear 23 Anemometer 24 Main frame 25 Inner cam contact when fully open 26 Outside cam contact when fully open 27 Inner cam contact when half open 28 Half open outer cam contact 29 Support shaft roller suction magnet Point A: Cam and roller angle change position Point B: Cam and roller rising point Point C: Cam and roller angle change position Point D: Cam and roller descending point Figure 12E Enlarged view of bracket Figure 17F: Enlarged view of bearing arrangement

Claims

[Claim 1] A designed number of blades are attached to the surface of a cylindrical rotor, each blade having a bow-shaped, dish-like cover with the end sides of the blades connected by a straight chord at the end points of the arc shape, at a predetermined position on the outer periphery of the rotor by a support shaft, and a spring is placed inside the support shaft. During the wind-receiving process, the blades open outward with the support shaft of the cylindrical rotor as a fulcrum, receive wind, generate rotational force, rotate half a turn, and when they return to the starting point at the time of reversal, the blades operate to cover the cylindrical rotor while adhering to it, and rotate using the wind pressure acting on the blades. It is an open type, or a roller type, or an outer frame guide type, or a cam opening and closing type, In the open type, the wind-receiving blades open outward when there is no wind. In the roller system, the rollers positioned when the wing returns operate to close the wing. In the outer frame guided type, a roller is placed on the outer end of the wind receiving blade, and when the wind receiving blade returns, it slides inside the outer frame where the roller is placed, and when it reverses, it closes the wind receiving blade towards the rotating body. The cam opening / closing type has a link and a roller connected to the wind-receiving blade support shaft, and opening / closing cams are arranged at both the upper and lower ends of the cylindrical rotor. The rollers slide on the sliding surfaces of the opening / closing cams, and when wind is received, the wind-receiving blades open outward from the rotor and start to rotate, and when they return in reverse, the spring inside the support shaft acts to cover the rotor. A vertical wind cylindrical rotor prime mover characterized by the above.

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