An offshore charging platform based on photovoltaic-wave energy hybrid power generation

Abstract

The present invention discloses an offshore charging platform based on photovoltaic-wave energy hybrid power generation, comprising a platform body formed by an upper platform, a middle panel, and a lower platform. The middle panel is rotatably connected to a plurality of photovoltaic panels, and the middle panel is fixedly connected to a plurality of wave energy power generation devices. The platform body is internally configured with an energy storage and charging system, which includes a first charging arm and a second charging arm. The wave energy power generation device includes a buoy floating on the sea surface and equipped with a curved photovoltaic panel on its surface, a sealed cylinder suspended below the buoy via a connector that can follow the up and down movement of the buoy, and a power conversion mechanism and a power generation module both placed within the sealed cylinder. The power generation module is connected to the connector via the power conversion mechanism, and the up and down movement of the connector is converted into rotational motion for power generation. The present invention integrates photovoltaic panels and wave energy generation devices, can selectively convert solar energy and wave energy into electrical energy, and utilizes the energy storage and charging system for energy replenishment.

Description

Technical Field

[0001] The present invention belongs to the technical field of ocean energy utilization, and in particular relates to an offshore charging platform based on photovoltaic-wave energy hybrid power generation. Background Art

[0002] While modern technology has significantly improved the efficiency of human exploitation of marine resources, the economic viability of long-distance electric boat transportation is hampered by the size and weight of batteries, a pressing issue. Previously, electric boats were mostly powered by charging platforms on steel structures or reefs (fixed-type platforms), which are complex, labor-intensive, and time-consuming to maintain. Deploying offshore charging platforms capable of providing real-time energy to vessels in remote areas could significantly alleviate these issues. However, existing offshore charging platforms present the following technical challenges: 1. Most existing offshore charging platforms utilize wave energy for power generation, leaving room for improvement in power generation efficiency; 2. Most existing offshore charging platforms focus solely on charging a single vessel, failing to simultaneously accommodate the diverse charging needs of electric boats and electric aircraft; and 3. The platform's main power generation components are often externally mounted, exposing them to the risk of damage from erosion by the marine environment. In light of these challenges, the present invention proposes a novel offshore charging platform based on hybrid photovoltaic-wave power generation. This platform utilizes both wave energy and solar energy resources at sea to improve energy conversion efficiency, providing a reliable source of energy for electric boats and electric aircraft. Summary of the Invention

[0003] In order to overcome the technical problems described in the above-mentioned prior art, the purpose of the present invention is to provide an offshore charging platform based on photovoltaic-wave energy hybrid power generation.

[0004] The present invention relates to an offshore charging platform based on photovoltaic-wave energy hybrid power generation, comprising a platform body formed by an upper platform, a middle panel, and a lower platform. The middle panel is rotatably connected to a plurality of photovoltaic panels, and the middle panel is fixedly connected to a plurality of wave energy power generation devices. An energy storage and charging system is configured within the platform body, and the energy storage and charging system includes a first charging arm and a second charging arm.

[0005] The wave energy power generation device includes a buoy floating on the sea surface, a sealed cylinder suspended below the buoy via a connector that can move up and down with the buoy, and a power conversion mechanism and a power generation module both placed within the sealed cylinder. The power generation module is connected to the connector via the power conversion mechanism and converts the up and down movement of the connector into rotational motion for power generation.

[0006] When the electric aircraft is docked on the upper platform, the first charging arm is aligned with the charging interface of the electric aircraft for energy replenishment; when the electric ship is docked near the platform body, the second charging arm is aligned with the charging interface of the electric ship for energy replenishment.

[0007] As a preferred technical solution, the platform body is a regular triangular prism, the middle panel includes three sub-panels, and each of the sub-panels is equipped with a group of photovoltaic panels and a group of wave energy power generation devices.

[0008] As a preferred technical solution, the sub-enclosure is fixedly connected to the sealing body of the wave energy power generation device through a plurality of third connecting rods.

[0009] As a preferred technical solution, the sub-enclosure is provided with upper and lower sets of telescopic rods, the free ends of the telescopic rods are hinged to the photovoltaic panel, and the rotation of the photovoltaic panel is achieved by contraction of the upper and lower sets of telescopic rods.

[0010] As a preferred technical solution, the photovoltaic panel is provided with an avoidance groove so that the photovoltaic panel does not interfere with the connecting rod when rotating.

[0011] As a preferred technical solution, all the wave energy power generation devices are at the same horizontal height, and the symmetry axis of any photovoltaic panel and the wave energy power generation device opposite to it are in the same vertical plane.

[0012] As a preferred technical solution, the power conversion mechanism includes a connector hinged to the end of the connector, a first connecting rod hinged to the end of the connector, a vertical bevel gear fixed to the end of the first connecting rod, and the vertical bevel gear is equipped with a horizontal bevel gear meshing with it.

[0013] As an optimal technical solution, a transverse gear connecting rod is provided in the sealing cylinder, and the vertical bevel gear is sleeved on the transverse gear connecting rod; the power conversion mechanism also includes a gear speed increaser, and the gear speed increaser input shaft is connected to the horizontal bevel gear through a deep groove ball bearing; the first connecting rod, the vertical bevel gear, the horizontal bevel gear and the gear speed increaser are all configured into two groups; wherein, the two groups of vertical bevel gears are arranged opposite to each other, and the two groups of horizontal bevel gears are correspondingly configured with a ratchet mechanism.

[0014] As a preferred technical solution, the upper platform further includes three sets of apron doors, and any of the apron doors is rotatably connected to the corresponding side of the upper platform through an opening and closing mechanism.

[0015] In summary, the present invention has the following technical effects:

[0016] The offshore charging platform adopting the above structure has the following technical advantages: 1. The present invention integrates photovoltaic panels and wave energy power generation devices into one through the platform body, which can selectively convert solar energy and wave energy into electrical energy, and jointly utilize the energy storage and charging systems. The device structure is simple and has a wide range of applications; 2. The main structure of the platform body of the present invention is a regular triangular prism, which improves the overall stability of the offshore charging platform and ensures its performance in extreme weather; 3. The wave energy power generation device of the present invention converts the linear motion of the buoy into rotational motion through the power conversion mechanism to drive the power generation module to detect, realize the capture of wave energy in the vertical direction, and maximize the use of wave energy; 4. The present invention can adjust the position of the photovoltaic panel to ensure that the solar power generation efficiency can be maintained under severe weather conditions; 5. The sealed cylinder of the present invention can protect components such as the power conversion mechanism and the power generation module, reduce the corrosion effect of seawater on them, and extend the service life of the wave energy power generation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an offshore charging platform based on photovoltaic-wave energy hybrid power generation according to an embodiment of the present invention;

[0019] Figure 2 1 is a schematic side view of an offshore charging platform based on photovoltaic-wave energy hybrid power generation according to an embodiment of the present invention;

[0020] Figure 3 is a schematic cross-sectional view of a wave energy power generation device according to an embodiment of the present invention;

[0021] The meanings of the reference numerals are as follows:

[0022] 11-upper platform, 111-opening and closing mechanism, 112-apron door, 12-middle panel, 121-photovoltaic panel, 122-telescopic rod, 13-lower platform;

[0023] 2-wave energy power generation device, 21-third connecting rod, 22-floating ball, 23-sealing cylinder, 231-connecting piece, 232-first connecting rod, 233-second connecting rod, 234-transverse gear connecting rod, 235-vertical bevel gear, 236-horizontal bevel gear, 237-gear speed increaser, 2371-input shaft, 2372-output shaft, 238-brushless motor, 2381-generator fixing part. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in this embodiment to clearly and completely describe the technical solution in this embodiment. The embodiment described herein is for illustrative purposes only and is not intended to limit the scope of protection of the present invention. Therefore, it should be understood that various modifications and changes can be made to this embodiment without departing from the scope of protection of the present invention.

[0025] In the description of the present invention, unless otherwise expressly specified or limited, the term "and / or" includes any and all combinations of one or more of the associated listed items. Unless otherwise specified or explained, the terms "connected" and "fixed" should be understood broadly. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] Furthermore, in the description of the present invention, it should be understood that the directional words described in the present embodiment are described based on the angles shown in the accompanying drawings and should not be understood as limiting the present embodiment. It should also be understood that, in the context, when an element or feature is mentioned as being connected to another element (or elements), it can not only be directly connected to the other (or elements), but also be indirectly connected to the other (or elements) through an intermediate element.

[0027] Before introducing the technical solution of the present invention, it is necessary to explain the background of the invention of the present invention. It is common that in order to solve the problem that the economic efficiency of long-distance shipping of electric ships is restricted by the volume / weight of batteries, most of the charging platforms on steel structures / island reefs (fixed) have been used to realize the power supply of electric ships. The maintenance is complicated, labor-consuming and time-consuming. The deployment of offshore charging platforms in offshore areas that can provide energy for aircraft in real time can significantly improve the above problems. However, the existing offshore charging platforms have the following technical problems: 1. Most of the existing offshore charging platforms only use wave energy to generate electricity, and the power generation efficiency needs to be improved; 2. Most of the existing offshore charging platforms only consider the energy replenishment effect of a single aircraft, and cannot simultaneously meet the multiple charging operations of electric ships and electric aircraft; 3. The power generation part of the platform body is mostly externalized, and there is a risk of being easily damaged by erosion by the marine environment.

[0028] In view of this, the present invention proposes an offshore charging platform based on photovoltaic-wave energy hybrid power generation, which integrates power generation and energy replenishment functions, and can provide electric ships and electric aircraft with continuous clean energy replenishment at sea, thereby enhancing their long-distance navigation capabilities and improving the efficiency and reliability of maritime transportation. Figures 1 to 3 The offshore charging platform of the present invention includes a platform body formed by an upper platform 11, a middle panel 12, and a lower platform 13. The middle panel 12 is rotatably connected to a plurality of photovoltaic panels 121 for photovoltaic power generation, and is fixedly connected to a plurality of wave energy generators 2 for generating electricity from wave motion and solar energy. Furthermore, an energy storage and charging system comprising a first charging arm and a second charging arm is configured within the platform body. When an electric aircraft docks on the upper platform 11, the first charging arm is aligned with the charging port of the electric aircraft for energy replenishment. When an electric ship docks near the platform body, the second charging arm is aligned with the charging port of the electric ship for energy replenishment. By analyzing the demand for electricity for different modes of maritime transportation, different charging methods are used for targeted energy replenishment for different modes of transportation; the first charging arm of the upper platform 11 can realize the energy replenishment required by the electric aircraft, and the lower platform 13 can automatically lower the second charging arm and dock with the ship after the ship approaches the mooring and stabilizes, realizing energy replenishment for the electric ship, solving the problem of limited long-distance sea transportation mileage of electric ships and electric aircraft, and providing them with continuous energy support.

[0029] It should be noted that the above-mentioned wave energy power generation device 2 includes a buoy 22 floating on the sea surface, a sealed cylinder 23 suspended below the buoy 22 through a connector 231 that can move up and down with the buoy 22, and a power conversion mechanism and a power generation module both placed in the sealed cylinder 23. The power generation module is connected to the connector 231 through the power conversion mechanism, and converts the up and down movement of the connector 231 into rotational motion for power generation. The buoy 22 is a hollow closed structure and can move up and down vertically with the movement of waves. When the buoy 22 captures wave energy, the power conversion mechanism can convert the up and down vertical reciprocating motion of the buoy 22 into rotational motion to drive the power generation module to perform work and generate electricity.

[0030] The platform body and the wave energy power generation device 2 are described in detail below:

[0031] For platform entities: In some embodiments, see Figures 1 to 2The platform body is a regular triangular prism, with the center panel 12 comprising three sub-panels, each of which is equipped with a set of photovoltaic panels 121 and a set of wave energy generators 2. Specifically, the sub-panels are equipped with upper and lower sets of telescopic rods 122, the free ends of which are hinged to the photovoltaic panels 121. The panels 121 can be rotated by retracting the upper and lower sets of telescopic rods 122. For example, the tilt of the photovoltaic panels 121 can be adjusted by setting different telescopic lengths of the upper and lower sets of telescopic rods 122 according to changes in sunlight. To this end, upper and lower sets of telescopic rods 122 control the position of the photovoltaic panels 121, ensuring that solar power generation efficiency is maintained even in inclement weather. This intelligent control system can adapt to varying weather conditions and improve the stability and efficiency of the solar power generation device. Simultaneously, the sub-shroud is fixedly connected to the sealed cylinder 23 of the wave energy generator 2 via a number of third connecting rods 21. The three wave energy generators 2 are connected to the sub-shroud to form a single unit, with buoys 22 providing buoyancy for the platform. Furthermore, the regular triangular prism structure enhances the overall stability of the platform. Furthermore, to prevent the photovoltaic panels 121 from interfering with the connecting rods during rotation, they are provided with avoidance grooves. Furthermore, to ensure the stability of the platform, all wave energy generators 2 are at the same level, and the axis of symmetry of any photovoltaic panel 121 and its corresponding wave energy generator 2 lie in the same vertical plane. This ensures good structural symmetry among all components of the power generation platform, enhancing its stability during offshore operations and preventing the risk of capsizing.

[0032] As a further optimization, in some embodiments, the upper platform 11 further includes three sets of apron doors 112, each of which is rotatably connected to a corresponding side portion of the upper platform 11 via an opening and closing mechanism 111. With this design, when the electric aircraft needs to dock on the upper platform 11, all the apron doors 112 are rotated to a horizontal state by the opening and closing mechanism 111, completely exposing the upper platform 11 for use; when the upper platform 11 has no operating tasks, all the apron doors 112 are rotated to a closed state by the opening and closing mechanism 111 to enclose the upper platform 11 and the charging robotic arm located on the upper platform 11.

[0033] For wave energy generation devices:

[0034] In some embodiments, see Figures 1 to 3, regarding the power conversion mechanism: the power conversion mechanism includes, from top to bottom, a first connecting rod 232, a second connecting rod 233, a vertical bevel gear 235, and a horizontal bevel gear 236, wherein the first connecting rod 232 is hinged to the end of the connecting member 231. Specifically, the connecting member 231 is arranged vertically, with one end thereof partially extending out of the top of the sealing cylinder 23 and connected to the float 22; then, the end of the connecting member 231 is hinged to one end of the first connecting rod 232, and the other end of the first connecting rod 232 is hinged to one end of the second connecting rod 233, and the other end of the second connecting rod 233 is fixed with a vertical bevel gear 235. At the same time, the vertical bevel gear 235 is configured with a horizontal bevel gear 236 that meshes with it. It should be noted that in some embodiments, a transverse gear connecting rod 234 that does not interfere with other components is provided in the sealing cylinder 23, and the vertical bevel gear 235 is sleeved on this transverse gear connecting rod 234. Furthermore, the power conversion mechanism also includes a gear speed increaser 237. The input shaft 2371 of the gear speed increaser 237 is connected to the horizontal bevel gear via a deep groove ball bearing. By configuring the gear speed increaser 237, the output shaft 2372 rotates faster than the horizontal bevel gear 236 of the input shaft 2371, thereby providing a higher speed to the power input end of the power generation module, thereby improving power generation efficiency. Of course, as a preferred embodiment, the second connecting rod 233, the vertical bevel gear 235, the horizontal bevel gear 236, and the gear speed increaser 237 are all configured as two groups, wherein the two groups of vertical bevel gears 235 are arranged opposite each other, and the two groups of horizontal bevel gears 236 are each equipped with a corresponding ratchet mechanism. With such a design, the ratchet mechanism can prevent the two sets of horizontal bevel gears 236 from reversing during the upward and downward movement of the float 22; at the same time, when the connecting piece 231 moves up and down with the float 22, the relatively arranged vertical bevel gears 235 cooperate with the ratchet mechanism so that the two sets of horizontal bevel gears 236 can maintain the continuous operation of the power generation device. In addition, the above design makes the middle and lower parts of the sealing cylinder 23 have a symmetrical structure, so that the overall center of gravity of the sealing cylinder 23 moves downward, which can effectively reduce the lateral impact of the waves on the power generation device and extend the life of the power generation device. It should be noted that on the basis of configuring the gear accelerator, in order to make the internal space of the sealing cylinder 23 more compact, the transverse gear connecting rod 234 is provided with a hollow hole and is sleeved on the input shaft 2371 of the gear reducer in a clearance fit manner.

[0035] In addition, for the power generation module: In some embodiments, see Figure 3The power generation module includes a brushless motor 238 and a generator fixing part 2381; among them, the brushless motor 238 is selected because it has good speed regulation performance, simple structure and no commutation sparks, and is easy to maintain later; the brushless motor 238 is fixedly installed on the bottom of the sealed cylinder 23 through the generator fixing part 2381, and at the same time, the output shaft 2372 of the gear speed increaser 237 is connected to the power input end of the power generation module, that is, the output shaft 2372 of the gear speed increaser 237 is connected to the rotor inside the brushless motor 238, and generates electricity by using the principle of electromagnetic power generation.

[0036] In summary, an offshore charging platform based on photovoltaic-wave energy hybrid power generation adopting the above structure has the following technical advantages: 1. The present invention integrates photovoltaic panels and wave energy power generation devices into one through the platform body, which can selectively convert solar energy and wave energy into electrical energy, and jointly utilize the energy storage and charging systems. The device structure is simple and has a wide range of applications; 2. The main structure of the platform body of the present invention is a regular triangular prism, which improves the overall stability of the offshore charging platform and ensures its performance in extreme weather; 3. The wave energy power generation device of the present invention converts the linear motion of the buoy into rotational motion through the power conversion mechanism to drive the power generation module to detect, realize the capture of wave energy in the vertical direction, and maximize the use of wave energy; 4. The present invention can adjust the position of the photovoltaic panel to ensure that the solar power generation efficiency can be maintained under severe weather conditions; 5. The sealed cylinder of the present invention can protect components such as the power conversion mechanism and the power generation module, reduce the corrosion effect of seawater on them, and extend the service life of the wave energy power generation device.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An offshore charging platform based on photovoltaic-wave energy hybrid power generation, characterized in that: The platform comprises a main body formed by an upper platform, a middle panel and a lower platform, wherein the middle panel is rotatably connected to a plurality of photovoltaic panels, and the middle panel is fixedly connected to a plurality of wave energy power generation devices. The platform main body is internally provided with an energy storage and charging system, and the energy storage and charging system comprises a first charging arm and a second charging arm; The wave energy power generation device includes a buoy floating on the sea surface, a sealed cylinder suspended below the buoy via a connector that can move up and down with the buoy, and a power conversion mechanism and a power generation module both placed within the sealed cylinder. The power generation module is connected to the connector via the power conversion mechanism and converts the up and down movement of the connector into rotational motion for power generation. When an electric aircraft is docked on the upper platform, the first charging arm is aligned with the charging interface of the electric aircraft for energy replenishment; when an electric ship is docked near the platform body, the second charging arm is aligned with the charging interface of the electric ship for energy replenishment; The power conversion mechanism includes a first connecting rod hinged to the end of the connecting member, the other end of the first connecting rod is hinged to a second connecting rod, the other end of the second connecting rod is fixed to a vertical bevel gear, and the vertical bevel gear is configured with a horizontal bevel gear meshing therewith; A transverse gear connecting rod is provided in the sealing cylinder, and the vertical bevel gear is sleeved on the transverse gear connecting rod; the power conversion mechanism also includes a gear speed increaser, and the gear speed increaser input shaft is connected to the horizontal bevel gear through a deep groove ball bearing; the first connecting rod, the vertical bevel gear, the horizontal bevel gear and the gear speed increaser are all configured into two groups; wherein, the two groups of vertical bevel gears are arranged opposite to each other, and the two groups of horizontal bevel gears are correspondingly configured with a ratchet mechanism.

2. The offshore charging platform according to claim 1, characterized in that: The platform body is a regular triangular prism, the middle panel includes three sub-panels, and each of the sub-panels is equipped with a group of photovoltaic panels and a group of wave energy power generation devices.

3. The offshore charging platform according to claim 2, characterized in that: The sub-enclosure is fixedly connected to the sealing body of the wave energy power generation device through a plurality of third connecting rods.

4. The offshore charging platform according to claim 3, characterized in that: The sub-enclosure is provided with an upper and lower set of telescopic rods, the free ends of the telescopic rods are hinged to the photovoltaic panel, and the rotation of the photovoltaic panel is achieved by contraction of the upper and lower sets of telescopic rods.

5. The offshore charging platform according to claim 4, characterized in that: The photovoltaic panel is provided with an avoidance groove so that the photovoltaic panel does not interfere with the connecting rod when rotating.

6. The offshore charging platform according to claim 5, characterized in that: All the wave energy power generation devices are at the same horizontal height, and the symmetry axis of any photovoltaic panel and the wave energy power generation device opposite thereto are in the same vertical plane.

7. The offshore charging platform according to claim 1, characterized in that: The upper platform also includes three groups of apron doors, and any of the apron doors is rotatably connected to the corresponding side of the upper platform through an opening and closing mechanism.

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