A vertical array rocking plate type wave energy power generation device

Abstract

The present invention relates to a vertical array rocking plate wave energy power generation device, which aims to solve the technical problems of the prior art, such as the difficulty in achieving high-power power generation due to the short wave front, the unsuitability for mobile operations at sea, and the complex equipment, high cost, bulky size and poor mobility. The wave energy power generation device includes a first buoy, a second buoy, a first support column, a first power output interface, a second power output interface, multiple wave energy conversion components, a support assembly disposed on the first support column, and a first battery and a second battery disposed in the first buoy and the second buoy, respectively. The first support column has two ends connected to the first buoy and the second buoy, respectively, and is located between the first buoy and the second buoy. The wave energy conversion components are disposed on the support assembly in an A×B vertical array and are located underwater. The output ends of the wave energy conversion components are electrically connected to the first battery and the second battery, respectively, wherein A ≥ 2, B ≥ 1, and A and B are both integers.

Description

Technical Field

[0001] The present invention relates to a wave energy power generation device, in particular to a vertical array rocking plate type wave energy power generation device. Background Art

[0002] Ocean energy refers to the renewable natural energy contained in the ocean. Among them, wave energy is one of the earliest and most important ocean energy sources developed and utilized by humans. Wave energy refers to the endless, periodic ups and downs of waves formed by the interaction between the atmosphere and the ocean due to the gravity of wind and seawater. These waves have a certain amount of kinetic energy and potential energy. The theoretical estimate of global wave energy is 10 9 KW level. According to the data from China's coastal ocean observation stations, the annual average power of theoretical waves along the Chinese coast is estimated to be about 1.3×10 7 KW. Current wave energy power generation technologies mainly include oscillating water column technology, pendulum technology, valve technology, contraction wave channel technology, point absorption technology, etc. In response to the above technologies, people have developed various wave energy power generation devices. For example, Chinese patent CN204113524U discloses a pendulum wave energy collection device, which includes a track fixed on the beach, a water tank slidably fitted on the track, a water inlet provided on the side of the water tank facing the sea surface, a wave-driven pendulum plate connected to the water tank, and an energy storage unit matched with the pendulum plate. The water tank and the track are provided with a control component that cooperates with each other and is used to control the position of the water tank. However, this wave energy collection device has the following disadvantages: 1. It only collects surface waves but cannot collect deep-water waves, resulting in a shorter wave front, making it difficult to achieve high-power power generation; 2. It is not suitable for mobile operations at sea; 3. The equipment structure is complex, the cost is high, the volume is large, and the mobility is poor. Summary of the Invention

[0003] The purpose of the present invention is to solve the technical problems in the prior art that only surface waves are collected but deep-water waves cannot be collected, resulting in a short wave front, making it difficult to achieve high-power power generation, unsuitable for mobile operations at sea, and the equipment structure is complex, the cost is high, the volume is large and the mobility is poor. A vertical array rocking plate wave energy power generation device is provided.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A vertical array rocking plate wave energy power generation device, which is special in that it includes: a first buoy, a second buoy, a first support column, a plurality of wave energy conversion components, a support component disposed on the first support column, a first battery disposed in the first buoy, a second battery disposed in the second buoy, a first power output interface located on the first buoy and connected to the first battery, and a second power output interface located on the second buoy and connected to the second battery;

[0006] One end of the first support column is connected to the first buoy, and the other end is connected to the second buoy, and is located between the first buoy and the second buoy arranged parallel to each other; the output end of the wave energy conversion assembly is electrically connected to the first battery and the second battery respectively; multiple wave energy conversion assemblies are arranged on the support assembly in an A×B vertical array and are located in the water; wherein A≥2, B≥1, and A and B are both integers.

[0007] Furthermore, in order to improve the stability of the overall device, two second support columns are also included; one end of one second support column is connected to the first buoy, and the other end is connected to the support assembly; one end of the other second support column is connected to the second buoy, and the other end is connected to the support assembly.

[0008] Furthermore, the support assembly includes a plurality of third support columns arranged parallel to each other; one end of the third support column is connected to the first support column, and the other end extends into the water; wherein the other end of the third support column close to the first buoy is connected to the other end of one of the second support columns, and the other end of the third support column close to the second buoy is connected to the other end of another second support column;

[0009] The wave energy conversion assembly includes a transmission shaft, a rotating plate arranged on the transmission shaft, and two generators coaxially connected to the transmission shaft; the two generators are respectively arranged in two adjacent third support columns, and the rotating plate is located between the adjacent third support columns;

[0010] The output end of the generator is electrically connected to the first battery and the second battery respectively.

[0011] Furthermore, in order to facilitate the replacement of different rotating plates according to different environmental operating conditions, one end of the rotating plate can be detachably mounted on the transmission shaft; the thickness of the rotating plate gradually decreases from the end close to the transmission shaft to the direction away from the transmission shaft, which can reduce its own weight and reduce damping.

[0012] Furthermore, in order to have better stability under the impact of waves, the first buoy and the second buoy are both composed of a cylindrical body and hemispherical shells located at both ends of the cylindrical body;

[0013] The first power output interface is arranged on the side of the cylindrical body of the first buoy away from the sea level; the second power output interface is arranged on the side of the cylindrical body of the second buoy away from the sea level to prevent seawater from entering the power output interface; one end of the first support column is connected to the cylindrical body of the first buoy, and the other end is connected to the cylindrical body of the second buoy; one end of a second support column is connected to the side of the cylindrical body of the first buoy close to the sea level; one end of another second support column is connected to the side of the cylindrical body of the second buoy close to the sea level.

[0014] Furthermore, it also includes two anchor chains and two waterproof cover plates; the two anchor chains are detachably arranged at the other end of two of the third support columns for easy fixation; one waterproof cover plate is arranged on the outside of the first power output interface, and the other waterproof cover plate is arranged on the outside of the second power output interface, further preventing seawater from entering the power output interface, thereby ensuring safety of use.

[0015] Furthermore, there are nine wave energy conversion components and four third support columns. The rotating plates in the nine wave energy conversion components are arranged in a 3×3 vertical array between two adjacent third support columns. The eighteen generators in the nine wave energy conversion components are electrically connected to each other, and the first row of generators in the third support column close to the first buoy is connected to the first battery, and the first row of generators in the third support column close to the second buoy is connected to the second battery.

[0016] Furthermore, the diameter of the two third support columns connected to the middle section of the first support column is larger than the diameter of the two third support columns connected to both ends of the first support column.

[0017] Furthermore, the first support column, the first buoy and the second buoy are an integrated structure.

[0018] Furthermore, in order to reduce weight and provide corrosion resistance, the first pontoon and the second pontoon are both made of PC+ABS engineering plastic alloy; the surface of the rotating plate is coated with carbon material; the first battery and the second battery are both lithium-ion batteries; and the generator is a magnetic generator.

[0019] Beneficial effects of the present invention:

[0020] 1. This invention provides a vertical array rocking plate wave energy power generation device with a simple overall structure. The wave energy conversion components are arranged in a vertical array, which can collect not only surface waves but also deep-water waves, increasing the wave frontage and thus enabling high-power wave energy generation. Furthermore, the device offers flexible operation, adapting to various complex environments, such as fixed to a fishing boat, shallow shoal, or dock, or floating on the sea surface to adapt to varying tidal levels. Compared to traditional air chamber wave energy power generation devices, it offers greater adaptability. Because the device floats on the water, it reduces sediment adhesion and prolongs its service life.

[0021] 2. The generator and rotating plate in this invention are coaxially arranged via a drive shaft, avoiding the problems of increased structural damping and resulting low secondary energy conversion efficiency and energy dissipation associated with gear or air chamber transmission. This also simplifies the construction process, significantly reducing design complexity and maintenance costs. This invention utilizes rocking plate surge technology to convert the various scattered, irregular, and highly variable wave patterns generated in nature into usable wave energy, improving wave energy utilization efficiency under varying sea conditions. Furthermore, the second support column in this invention enhances the stability of the overall power generation device.

[0022] 3. The rotating plates in the present invention are detachable, making maintenance simple. In addition, the gradually decreasing thickness of the rotating plates can reduce their own weight and damping. Since the energy conversion efficiency is related to the angular velocity of the rotating plates, and the magnitude of the angular velocity is related to factors such as the wave height, wave speed, period, and sea depth, the detachable design of the rotating plates allows for flexible selection of the number and size of the rotating plates and the operating mode of the overall power generation device (fixed or floating) according to different tide levels and water depths to meet the maximum wave front and achieve the maximum conversion power of surface wave and deepwater wave energy.

[0023] 4. The first and second buoys in this invention are both composed of a cylindrical body with hemispherical shells at either end. Compared to a rectangular parallelepiped or spherical shape, this shape offers greater stability under wave impact. Furthermore, compared to a sphere, this shape has a higher aspect ratio, allowing for the installation of more rotating plates, improving energy collection efficiency. Furthermore, its narrow interior facilitates the installation of its internal equipment, significantly reducing manufacturing complexity.

[0024] 5. The first buoy and the second buoy in the present invention are both made of PC+ABS engineering plastic alloy. This material has excellent heat and weather resistance, dimensional stability, and impact resistance, as well as excellent processing fluidity. Therefore, the first buoy and the second buoy meet the working performance requirements and the manufacturing process is not complicated. The surface of the rotating plate in the present invention is coated with carbon material, which makes it chemically stable, resistant to high temperatures, salt and alkali, and corrosion-resistant, and can ensure stable operation in salt spray and seawater corrosion environments. The first battery and the second battery in the present invention are both lithium-ion batteries, which have high energy density, high voltage, no pollution, and a long cycle life, and meet the requirements of fishing boats, industrial lighting, etc. for high capacity, long life, and fast charging and discharging. Lithium-ion batteries have no memory function and can be repeatedly charged and discharged. The wave energy power generation device can be pre-charged, so that it can provide the power required for lighting and positioning when placed at night. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of a vertical array rocking plate type wave energy power generation device of the present invention (the waterproof cover is not shown, and the dotted line represents the sea level);

[0026] Figure 2 is a front view of an embodiment of the present invention (the dotted line represents the sea level);

[0027] Figure 3 It is a left side view of an embodiment of the present invention (the dotted line represents the sea level);

[0028] Figure 4 FIG. 1 is a top view of an embodiment of the present invention (the dotted line represents the sea level).

[0029] Reference numerals:

[0030] 1-first buoy, 2-second buoy, 3-first support column, 4-first battery, 5-second battery, 6-first power output interface, 7-second power output interface, 8-wave energy conversion component, 81-generator, 82-drive shaft, 83-rotating plate, 9-support assembly, 91-third support column, 10-second support column, 11-anchor chain. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] like Figure 1-4As shown, a vertical array rocking plate type wave energy power generation device includes a first buoy 1, a second buoy 2, a first support column 3, a plurality of wave energy conversion components 8, two second support columns 10, a support component 9 arranged on the first support column 3, a first battery 4 arranged in the first buoy 1, a second battery 5 arranged in the second buoy 2, a first power output interface 6 located on the first buoy 1 and connected to the first battery 4, and a second power output interface 7 located on the second buoy and connected to the second battery 5, two anchor chains 11, and two waterproof cover plates. Specifically, the first buoy 1 and the second buoy 2 are each composed of a cylindrical body and a hemispherical shell located at both ends of the cylindrical body. One end of the first support column 3 is connected to the cylindrical body of the first buoy 1, and the other end is connected to the cylindrical body of the second buoy 2. The first support column 3 is located between the first buoy 1 and the second buoy 2, which are arranged parallel to each other. The first support column 3, the first buoy 1, and the second buoy 2 are an integrated structure. The first power output port 6 is located on the side of the cylindrical body of the first buoy 1 facing away from the sea level, and the second power output port 7 is located on the side of the cylindrical body of the second buoy 2 facing away from the sea level. Due to the volatile nature of the sea surface, a waterproof cover is provided on the outside of the first power output port 6, and another waterproof cover is provided on the outside of the second power output port 7 to ensure the safe operation of the wave energy generation device. Furthermore, both the first power output port 6 and the second power output port 7 are equipped with a standard household electrical outlet and a USB port. The USB port connects to an internal USB charging converter that transforms and transmits electrical energy. The standard household electrical outlet is internally connected to a transformer and voltage stabilizer to ensure the stable rated voltage required by electrical devices. Both the first and second buoys 1 and 2 are made of a lightweight, corrosion-resistant PC+ABS engineering plastic alloy. The first and second batteries 4 and 5 are lithium-ion batteries.

[0033] The support assembly 9 includes four third support columns 91 arranged parallel to each other, one end of the four third support columns 91 is connected to the first support column 3, and the other end extends into the water. Two anchor chains 11 are detachably arranged at the other end of two of the third support columns 91. In this embodiment, the connection between the third support column 91 and the first support column 3 is a snap-on connection, while in other embodiments, it is a threaded connection with a sealing treatment. One end of a second support column 10 is connected to the side of the cylindrical body of the first buoy 1 near sea level, and the other end is connected to the other end of the third support column 91 near the first buoy 1. Another second support column 10 has one end connected to the side of the cylindrical body of the second buoy 2 near sea level, and the other end is connected to the other end of the third support column 91 near the second buoy 2. In this embodiment, one end of the second support column 10 is threadedly connected to the side of the cylindrical body of the first buoy 1 near sea level and the side of the cylindrical body of the second buoy 2 near sea level, and the other end is clipped to the third support column 91 near the first buoy 1 and the third support column 91 near the second buoy 2. In other embodiments, the other end is threadedly connected to the third support column 91 and is sealed. In addition, to accommodate two adjacent generators 81, the diameter of the two third support columns 91 connected in the middle section of the first support column 3 is larger than the diameter of the two third support columns 91 connected at both ends of the first support column 3.

[0034] The wave energy conversion assembly 8 comprises a transmission shaft 82, a rotating plate 83 mounted on the transmission shaft 82, and two generators 81 coaxially connected to the transmission shaft 82. One end of the rotating plate 83 is removably mounted on the transmission shaft 82. The thickness of the rotating plate 83 decreases from the end closest to the transmission shaft 82 toward the end away from the transmission shaft 82, and its cross-section is approximately an inverted triangle. The two generators 81 are respectively mounted within two adjacent third support columns 91, with the rotating plate 83 positioned between the adjacent third support columns 91. The output ends of the generators 81 are electrically connected to the first battery 4 and the second battery 5, respectively. In this embodiment, the generators 81 are magnetic generators. In this embodiment, there are nine wave energy conversion assemblies 8. The rotating plates 83 in the nine wave energy conversion assemblies 8 are arranged in a 3×3 vertical array between two adjacent third support columns 91 and are located in the water. The eighteen generators 81 in the nine wave energy conversion assemblies 8 are electrically connected to each other, and the first row of generators 81 in the third support column 91 near the first buoy 1 is connected to the first battery 4, while the first row of generators 81 in the third support column 91 near the second buoy 2 is connected to the second battery 5. Because the rotating plates 83 are removable, the number and size of the rotating plates 83 and the operating mode of the entire power generation device (fixed or floating) can be flexibly selected according to different tide levels and water depths to meet the maximum wave front and achieve the maximum conversion power of surface wave and deep water wave energy. In addition, the surface of the rotating plates 83 is coated with a carbon material, and a low-stiffness prestressed spring is built into the rotating shaft of the rotating plates 83 to ensure the vertical state under wave-free conditions.

[0035] The operating principle of the vertical array rocking plate wave energy power generation device in this embodiment is as follows: First buoys 1 and second buoys 2 provide buoyancy, allowing the wave energy power generation device to float on the sea surface or be anchored to locations with intense wave motion, such as shallows or docks, by adjusting the length of anchor chain 11. When waves pass through, rotating plate 83 is affected by the wave force, causing it to oscillate periodically. This power is then driven by generator 81, which is coaxial with rotating plate 83, via drive shaft 82, and is then stored in first and second batteries 4 and 5. External devices can access power through first and second power output interfaces 6 and 7.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention shall be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A vertical array rocking plate type wave energy power generation device, characterized by: The invention comprises a first buoy (1), a second buoy (2), a first support column (3), a plurality of wave energy conversion components (8), a support component (9) arranged on the first support column (3), a first battery (4) arranged in the first buoy (1), a second battery (5) arranged in the second buoy (2), a first power output interface (6) located on the first buoy (1) and connected to the first battery (4), and a second power output interface (7) located on the second buoy (2) and connected to the second battery (5); One end of the first support column (3) is connected to the first buoy (1), and the other end is connected to the second buoy (2), and is located between the first buoy (1) and the second buoy (2) arranged in parallel with each other; the output end of the wave energy conversion component (8) is electrically connected to the first battery (4) and the second battery (5), respectively; a plurality of the wave energy conversion components (8) are arranged on the support component (9) in an A×B vertical array and are located in water; wherein A≥2, B≥1, and A and B are both integers; It also includes two second support columns (10); wherein one end of one second support column (10) is connected to the first buoy (1), and the other end is connected to the support assembly (9); one end of the other second support column (10) is connected to the second buoy (2), and the other end is connected to the support assembly (9); The support assembly (9) comprises a plurality of third support columns (91) arranged parallel to each other; one end of the third support column (91) is connected to the first support column (3), and the other end extends into the water; wherein the other end of the third support column (91) close to the first buoy (1) is connected to the other end of a second support column (10), and the other end of the third support column (91) close to the second buoy (2) is connected to the other end of another second support column (10); The wave energy conversion assembly (8) comprises a transmission shaft (82), a rotating plate (83) arranged on the transmission shaft (82), and two generators (81) coaxially connected to the transmission shaft (82); the two generators (81) are respectively arranged in two adjacent third support columns (91), and the rotating plate (83) is located between the adjacent third support columns (91); The output end of the generator (81) is electrically connected to the first battery (4) and the second battery (5) respectively.

2. The vertical array rocking plate type wave energy power generation device according to claim 1, characterized in that: One end of the rotating plate (83) is detachably sleeved on the transmission shaft (82); the thickness of the rotating plate (83) gradually decreases from the end close to the transmission shaft (82) to the direction away from the transmission shaft (82).

3. The vertical array rocking plate type wave energy power generation device according to claim 2, characterized in that: The first buoy (1) and the second buoy (2) are both composed of a cylindrical body and hemispherical shells located at both ends of the cylindrical body; The first power output interface (6) is arranged on the side of the cylindrical body of the first buoy (1) away from the sea level; the second power output interface (7) is arranged on the side of the cylindrical body of the second buoy (2) away from the sea level; one end of the first support column (3) is connected to the cylindrical body of the first buoy (1), and the other end is connected to the cylindrical body of the second buoy (2); one end of a second support column (10) is connected to the side of the cylindrical body of the first buoy (1) close to the sea level; and one end of another second support column (10) is connected to the side of the cylindrical body of the second buoy (2) close to the sea level.

4. The vertical array rocking plate type wave energy power generation device according to claim 3, characterized in that: It also includes two anchor chains (11) and two waterproof cover plates; the two anchor chains (11) are detachably arranged at the other ends of two third support columns (91); one waterproof cover plate is arranged outside the first power output interface (6), and the other waterproof cover plate is arranged outside the second power output interface (7).

5. The vertical array rocking plate type wave energy power generation device according to claim 4, characterized in that: There are nine wave energy conversion assemblies (8), four third support columns (91), and the rotating plates (83) in the nine wave energy conversion assemblies (8) are arranged in a 3×3 vertical array between two adjacent third support columns (91); the eighteen generators (81) in the nine wave energy conversion assemblies (8) are electrically connected to each other, and the generators (81) in the first row in the third support column (91) close to the first buoy (1) are connected to the first battery (4), and the generators (81) in the first row in the third support column (91) close to the second buoy (2) are connected to the second battery (5).

6. The vertical array rocking plate type wave energy power generation device according to claim 5, characterized in that: The diameters of the two third support columns (91) connected to the middle section of the first support column (3) are larger than the diameters of the two third support columns (91) connected to the two ends of the first support column (3).

7. The vertical array rocking plate type wave energy power generation device according to claim 6, characterized in that: The first support column (3), the first buoy (1) and the second buoy (2) are an integrated structure.

8. The vertical array rocking plate type wave energy power generation device according to claim 1, characterized in that: The first buoy (1) and the second buoy (2) are both made of PC+ABS engineering plastic alloy; the surface of the rotating plate (83) is coated with carbon material; the first battery (4) and the second battery (5) are both lithium-ion batteries; and the generator (81) is a magnetic generator.

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