Onshore lever-type wave turbine unit

TW202634162AActive Publication Date: 2026-08-16NAT SUN YAT SEN UNIV
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Patent Information

Application Number
TW114105646
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2026-08-16
Estimated Expiration
2045-02-13

AI Technical Summary

Technical Problem

Existing wave power generation equipment is costly to manufacture and maintain, has environmental impact, and is susceptible to damage from natural disasters, as they are completely submerged in the sea.

Method used

A shore-based lever-type air-compressed wave turbine unit that converts wave potential energy into kinetic energy using a buoy and lever structure, amplifying the swing amplitude to drive an air compressor and paddlewheel generator, generating electricity with minimal marine impact.

Benefits of technology

Reduces manufacturing costs, minimizes environmental disruption, and avoids damage from typhoons by being land-based, while achieving electricity generation efficiency exceeding 30%.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

A shore-based lever-type air-compressed wave turbine unit is installed on the coast. A buoy is installed on one side of the lever structure. The buoy swings up and down in the nearshore sea, and the potential energy of the buoy is converted into kinetic energy by the up and down water level caused by the waves. The energy is then transferred to the lever structure. The lever ratio amplifies the swing, and the amplified swing is transferred to the air compressor plate. The kinetic energy of the air compressor plate is also amplified, and the air stored in the air chamber is quickly blown out by the air compressor plate. The blown compressed air drives the paddle wheel, which drives the 120V high-power permanent magnet DC generators on the U-shaped structures on both sides to generate electricity. The power generation efficiency can reach more than 30%. This generator unit will not affect the marine environment and the cost of manufacturing the wave lever generator unit is also greatly reduced.
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Description

Onshore lever-type wave turbine unit This invention relates to the field of power generation equipment, and specifically to a shore-based lever-type air-compressed wave turbine unit. Taiwan's energy demand relies mainly on imported non-renewable energy, and Taiwan's greenhouse gas (GHG) emissions are increasing. Considering the problems of environmental pollution and energy shortage, the government has set a goal of achieving net-zero carbon emissions by 2050 to promote energy transition policies, increasing the proportion of renewable energy in electricity, including ocean energy. One way to utilize ocean energy is by using waves. Wave energy is converted from solar energy. Uneven solar radiation causes different temperatures on the Earth's surface, which, together with the Earth's rotation, produces wind energy. The movement of water molecules in the ocean, combined with the Earth's gravity, creates wind and waves. The undulation of waves utilizes the difference between kinetic and potential energy to drive generators to produce electricity. However, the aforementioned wave generators are all completely submerged in the sea, which makes the manufacturing and maintenance costs of wave power generation equipment quite high. Moreover, once installed, they will inevitably have some impact on the marine environment and are susceptible to damage from factors such as typhoons and hurricanes. How to address the shortcomings of previous wave power generation equipment is a problem that relevant companies are actively working to solve. The main objective of this invention is to provide a shore-based lever-type air-compressed wave turbine unit. This unit is installed on the coast, with a buoy on one side of the lever structure. The buoy swings up and down in the nearshore waters, its potential energy converted into kinetic energy by the fluctuations in water level caused by the waves. This energy is then transferred to the lever structure, where the leverage ratio amplifies the swing amplitude. This amplified swing amplitude is then transferred to the air compressor plate, further amplifying the downward kinetic energy of the plate. This causes the air stored in the pressure tank to be rapidly expelled by the pressure plate. The expelled compressed gas drives a paddle wheel, which in turn drives two U-shaped structures on either side, producing 120V high-power permanent magnet DC generators. The generators generate electricity with an efficiency exceeding 30%. This generator unit does not impact the marine environment and significantly reduces the manufacturing cost of the wave lever-type generator unit. Therefore, the structure of the present invention includes: A lever structure is installed at a predetermined location on coastal land. The lever structure includes a base and a rod. The base is installed on the land, and the upper end of the base serves as a fulcrum. The rod has a pivot portion, which is connected to the upper end of the base through a pivot axis, and the rod swings around the pivot axis. The aforementioned rod can be separated into a floating end and an actuating end with the base as the center. A buoy is attached to the floating end of the rod body via a connector. When in use, the buoy floats on the sea surface. The waves on the sea surface cause the buoy to undulate, which in turn causes the actuator to swing. A compressed air structure is provided on one side of the actuating end of the lever structure. The compressed air structure consists of a compressed air plate and a compressed air box. The compressed air plate is connected to the actuating end through a hanging unit. Under the swing of the lever, the compressed air plate moves linearly up and down in the compressed air box. The compressed air box is used to house the compressed air plate. The bottom of the compressed air box is provided with multiple air inlets and an air outlet. The air inlets are provided with a one-way valve. When the compressed air plate rises, air can only enter the internal space of the compressed air box from the air inlet. The air outlet is also provided with a valve. When the compressed air plate falls, the air in the internal space of the compressed air box is discharged from the air outlet. A paddlewheel generator comprises a frame, a three-bladed impeller, a shaft, and at least one generator. The paddlewheel generator is located at the front end of the air outlet of the air compressor structure. The shaft is connected to the center of the three-bladed impeller, and the shaft passes through the frame, allowing the three-bladed impeller to rotate on the frame. The generator is connected to the shaft, and generates electricity through electromagnetic induction when the three-bladed impeller rotates. Accordingly, the buoy is floated by the waves on the sea surface. The rod is driven by the buoy, causing the air compressor plate on the side of the actuator to perform air intake and exhaust along the air compressor box. The three-bladed rotor of the paddlewheel generator is rotated by the compressed air generated by the air outlet, causing the generator to generate electromagnetic induction and generate electrical energy. Finally, the electrical energy is exported. In an embodiment of the present invention, the base of the lever structure is formed by welding two H-shaped base plates and an I-shaped upright, and the base is provided with two fixed bearing seats for the rod body to be mounted. In an embodiment of the present invention, the rod body comprises an iron pipe and a sleeve, and the iron pipe is fitted onto the sleeve so that the iron pipe can move relative to the sleeve. In an embodiment of the present invention, the length ratio of the floating end to the actuating end is 1:2. In an embodiment of the present invention, the pontoon is composed of an iron plate and a polystyrene block. The iron plate is mounted on the polystyrene block. The iron plate weighs 10 kg and is a circular plate with a diameter of 33 cm. The polystyrene block is a circular block with a diameter of 50 cm and a height of 20 cm. In an embodiment of the present invention, the air compressor plate is a plate with a length of 50 cm, a width of 50 cm, and a thickness of 1 cm. A square hanging wall is provided in the center of the air compressor plate. The hanging wall provides a place for the hanging unit to be connected to the four corners and then fixed to the actuating end of the rod. The air compressor box is a hollow box with a length of 50 cm, a width of 50 cm, and a height of 60 cm. The air compressor box has 15 air inlets with a diameter of 8 cm at the bottom of three adjacent walls. The air outlet of the air compressor box is 10 cm long and 5 cm high. In an embodiment of the present invention, the three-bladed rotor of the paddlewheel generator has three arc-shaped blades, each blade being 10 cm long, 7 cm high, and 0.2 cm thick. Furthermore, a 120-volt (V) high-power permanent magnet DC generator is provided at each end of the frame. The aforementioned generator is connected to the shaft via a flange-type connecting plate. Based on the above description, the features and effects of the present invention are briefly summarized as follows: 1. The buoy swings up and down in the nearshore sea with the rise and fall of the waves and water level, converting the potential energy of the swing into kinetic energy. The energy is transferred to the lever structure, and the swing is amplified by the leverage ratio, which drives the air compressor plate to compress the air in the air compressor box and blow it out, driving the paddle wheel generator. 2. Improvements were made to the blades of the paddlewheel generator so that the three-bladed rotor could rotate smoothly under the influence of compressed airflow; apart from the undulating buoy and rod, there are no other structures in the sea, which reduces the cost of offshore construction. Furthermore, the entire device can be placed on the shore, making installation more convenient and easier to avoid typhoons. 3. The technology in this case is already capable of generating electricity. The entire onshore lever-type air-compressed wave turbine unit is a land-based device with very few structures in the sea, and it can generate green energy using a convenient structure. 4. It can be installed in areas such as the northeastern coast, Fugui Cape, Penghu, and Yunlin-Changhua, with a potential of 2.41GW. Wave energy is also an indispensable renewable energy source in ocean energy. 5. Compared with other equipment that utilizes ocean energy, this project is low in cost, has a simple structure, requires almost no structure in the sea, and is relatively easy to maintain. As shown in Figure 1, the shore-based lever-type air-compressed wave turbine unit of the present invention comprises: a lever structure 10, a float 20, an air-compressing structure 30, and a paddlewheel generator 40. As shown in Figures 1 and 2, the lever structure 10 is installed at a predetermined location on the coastal land. The lever structure 10 includes a base 11 and a rod 12. The base 11 is installed on the land, and its upper end serves as a fulcrum. Specifically, the base 11 is constructed by welding two H-shaped base plates 111 and an I-shaped upright rod 112 together. The base 11 is provided with two fixed bearing seats 113 for the rod 12 to be mounted. The rod 12 is provided with a pivot 121, which is connected to the upper end of the base 11 via a pivot 122, allowing the rod 12 to swing around the pivot 122. The rod 12, centered on the base 11, can distinguish a floating end 123 and an actuating end 124, and the length ratio of the floating end 123 to the actuating end 124 is 1:2. In addition, in some embodiments, the rod 12 comprises an iron pipe (not shown) and a sleeve (not shown), and the iron pipe is fitted onto the sleeve so that the iron pipe can move relative to the sleeve, thereby adjusting the length of the floating end 123 and the actuating end 124. As shown in Figures 1 and 3, the buoy 20 is attached to the floating end 123 of the rod body 12 via a connector 21. When in use, the buoy 20 floats on the sea surface, and the waves on the sea surface cause the buoy 20 to rise and fall, thereby causing the actuating end 124 to swing. The buoy 20 is composed of an iron plate 22 and a polystyrene block 23. The iron plate 22 is mounted on the polystyrene block 23. The iron plate 22 is a circular plate with a weight of 10 kg and a diameter of 33 cm. The polystyrene block 23 is a circular block with a diameter of 50 cm and a height of 20 cm. As shown in Figures 1, 4, and 5, the compressed air structure 30 is located on one side of the actuating end 124 of the lever structure 10. The compressed air structure 30 consists of a compressed air plate 31 and a compressed air box 32. The compressed air plate 31 is a plate with a length of 50 cm, a width of 50 cm, and a thickness of 1 cm. A square hanging wall 311 is provided in the center of the compressed air plate 31. The four corners of the hanging wall 311 are connected to the actuating end 124 through a hanging unit 33. Under the swing of the rod 12, the compressed air plate 31 moves linearly up and down in the compressed air box 32. Please refer to Figures 1, 4, and 5. The air compressor 32 houses the air compressor plate 31. The air compressor 32 is a hollow box with a length of 50 cm, a width of 50 cm, and a height of 60 cm. The air compressor 32 has 15 air inlets 321 with a diameter of 8 cm on the bottom of three adjacent walls. On the side without air inlets 321, there is an air outlet 322. The aforementioned air inlets 321 are equipped with a one-way valve (not shown in the figure). When the air compressor plate 31 rises, air can only enter the internal space of the air compressor 32 through the air inlets 321. The air outlet 322 is also equipped with a valve (not shown in the figure). When the air compressor plate 31 descends, the air in the internal space of the air compressor 32 is discharged through the air outlet 322. The air outlet 322 of the air compressor 32 is 10 cm long and 5 cm high. As shown in Figures 1, 6, and 7, the paddlewheel generator 40 consists of a frame 41, a three-bladed impeller 42, a shaft 43, and two generators 44. The paddlewheel generator 40 is located at the front end of the air outlet 322 of the compressed air structure 30. The shaft 43 is axially connected to the center of the three-bladed impeller 42, and the shaft 43 passes through the frame 41, allowing the three-bladed impeller 42 to rotate on the frame 41. The generators 44 are connected to the shaft 43 via flange-type connecting plates 45. Electricity is generated by electromagnetic induction when the three-bladed impeller 42 rotates. As shown in Figure 7, the three-bladed impeller 42 has three arc-shaped blades 421, each blade being 10 cm long, 7 cm high, and 0.2 cm thick. As shown in Figure 6, the generators 44 are 120-volt (V) high-power permanent magnet DC generators. As shown in Figure 8, in actual use, the waves on the sea surface drive the float 20 to float. The rod 12 is driven by the float 20, causing the air compressor plate 31 on one side of the actuator 124 to perform air intake and exhaust along the air compressor box 32. The three-bladed rotor 42 of the paddlewheel generator 40 rotates under the compressed air generated by the air outlet 322, causing the generator 44 to generate electromagnetic induction and generate electrical energy. Finally, the electrical energy is discharged. Therefore, the present invention utilizes the buoy 20 to swing up and down in the nearshore sea with the rise and fall of the wave water level, converting the potential energy of its swing into kinetic energy, which is transferred to the lever structure 10. The swing is amplified by the leverage ratio, which drives the air compressor plate 31 to compress the air in the air compressor box 32 and blow it out, thereby driving the paddlewheel generator 40. In addition, the blades 421 of the paddlewheel generator 40 have been improved so that the three-bladed rotor 42 can rotate smoothly under the compressed airflow. Apart from the undulating buoy 20 and the rod 12, there are no other structures in the sea, which reduces the cost of offshore construction. Furthermore, the entire device can be placed on the shore, making installation more convenient and easier to avoid typhoons. In conclusion, the structure of this invention has not been seen in any books or publications or publicly used, and it truly meets the requirements for an invention patent application. We earnestly request your esteemed authority to grant the patent as soon as possible, and we are deeply grateful. It should be noted that the above description is a specific embodiment of the present invention and the technical principles used. Any changes made according to the concept of the present invention, if the resulting functions do not exceed the spirit covered by the specification and drawings, should be within the scope of the present invention and are hereby stated. 10: Lever structure 11: Base 111: Base plate 112: Upright 12: Rod body 121: Pivot 122: Pivot shaft 123: Floating end 124: Actuating end 20: Float 21: Connector 22: Iron plate 23: Polystyrene block 30: Compressed air structure 31: Compressed air plate 311: Wall hanging 32: Compressed air box 321: Air inlet 322: Air outlet 33: Hanging unit 40: Paddlewheel generator 41: Frame 42: Three-bladed impeller 421: Blade 43: Shaft 44: Generator 45: Flange connection plate Figure 1: Overall system diagram of the invention. Figure 2: Perspective view of the lever structure. Figure 3: Structural diagram of the float. Figure 4: Perspective view of the compressed air structure. Figure 5: Cross-sectional view of the compressed air box. Figure 6: Structural diagram of the paddlewheel generator. Figure 7: Structural diagram of the three-lobe impeller. Figure 8: Schematic diagram of the use of the invention. 10: Lever Structure 11: Base 111: Base Plate 112: Pole 12: Rod 121: Pivot 122: Pivot 123: Floating End 124: Actuator end 20: pontoons 21: Connector 22: Iron Plate 23: Styrofoam blocks 31: Air Compressor 311: Hanging Wall 32: Compressor box 321: Air Inlet 33: Hanging Unit 40: Paddlewheel generator 41: Rack 42: Three-bladed rotor 421: Blade 43: Axis 44: Generator

Claims

1. A shore-based lever-type wave turbine unit includes: a lever structure installed at a predetermined location on the coast, the lever structure including a base and a rod, the base being installed on the land and the upper end of the base serving as a fulcrum; the rod having a pivot portion connected to the upper end of the base via a pivot, causing the rod to swing around the pivot, the aforementioned rod being able to distinguish a floating end and an actuating end around the base; and a float, the float being assembled to the floating end of the rod via a connector, and the float floating on the sea surface during use, the waves on the sea surface causing the float to undulate, thereby causing the actuating end to swing; A compressed air structure is located on one side of the actuating end of the lever structure. The compressed air structure comprises a compressed air plate and a compressed air box. The compressed air plate is connected to the actuating end via a suspension unit. Under the swing of the lever, the compressed air plate linearly moves up and down within the compressed air box. The compressed air box houses the compressed air plate, and its bottom end has multiple air inlets and one air outlet. Each air inlet is equipped with a one-way valve, ensuring that when the compressed air plate rises, air can only enter the internal space of the compressed air box through the air inlets. The air outlet... The device includes a valve that, when the air compressor plate descends, vents the air inside the air chamber through the outlet; and a paddlewheel generator, which consists of a frame, a three-bladed impeller, a shaft, and at least one generator. The paddlewheel generator is located at the front end of the air outlet of the air compressor structure. The shaft is connected to the center of the three-bladed impeller, which passes through the frame, allowing the three-bladed impeller to rotate on the frame. The generator is connected to the shaft, and generates electricity through electromagnetic induction when the three-bladed impeller rotates. Accordingly, the waves on the sea surface cause the float to float, and the rod body, driven by the float, causes the air compressor plate on the actuating end to perform air intake and exhaust along the air chamber. The three-bladed impeller of the paddlewheel generator rotates due to the compressed air generated by the outlet, causing the generator to generate electrical energy through electromagnetic induction, which is then discharged. As described in claim 1, the shore-based lever-operated wave turbine unit, wherein... The base of the lever structure is constructed by welding two H-shaped base plates and an I-shaped upright, and the base is provided with two fixed bearing seats for the rod body. As described in claim 1, the shore-based lever-operated wave turbine unit, wherein... The rod consists of an iron pipe and a sleeve. The iron pipe is fitted onto the sleeve, allowing the iron pipe to move relative to the sleeve. As described in claim 1, the shore-based lever-operated wave turbine unit, wherein... The length ratio of the floating end to the actuating end is 1:

2. As described in claim 1, the shore-based lever-operated wave turbine unit, wherein... The pontoon is composed of an iron plate and a polystyrene block. The iron plate is installed on the polystyrene block. The iron plate weighs 10 kilograms and is a circular plate with a diameter of 33 centimeters. The polystyrene block is a circular block with a diameter of 50 centimeters and a height of 20 centimeters. As described in claim 1, the shore-based lever-operated wave turbine unit, wherein... The air compressor plate is a plate with a length of 50 cm, a width of 50 cm, and a thickness of 1 cm. A square hanging wall is provided in the center of the air compressor plate. The hanging wall provides a place for the hanging unit to be connected to the four corners and fixed to the actuating end of the rod. The air compressor box is a hollow box with a length of 50 cm, a width of 50 cm, and a height of 60 cm. The air compressor box has 15 air inlets with a diameter of 8 cm at the bottom of three adjacent walls. The air outlet of the air compressor box is 10 cm long and 5 cm high. As described in claim 1, the shore-based lever-operated wave turbine unit, wherein... The paddlewheel generator has a three-bladed rotor with three arc-shaped blades, each blade being 10 cm long, 7 cm high, and 0.2 cm thick. Furthermore, the frame is equipped with 120-volt (V) high-power permanent magnet DC generators at both ends. The aforementioned generators are connected to the shaft via flange-type connecting plates.