Self-balancing underwater energy supply platform based on contra-rotating flexible blade water turbine

Abstract

The invention relates to the technical field of underwater in-situ power supply, and discloses a self-balancing underwater energy supply platform based on a contra-rotating flexible blade water turbine, and the platform comprises a main body which is provided with a containing cavity, and an energy storage device is placed in the containing cavity; the mooring structure is connected with the main body, and the mooring structure is used for mooring the main body in ocean current; the first self-energy-supply device is coaxially and rotationally connected with the main body, the first self-energy-supply device is electrically connected with the energy storage device, and the first self-energy-supply device generates first torque relative to the main body during mooring; the second self-energy-supply device is coaxially and rotationally connected with the main body, the second self-energy-supply device is electrically connected with the energy storage device, and the second self-energy-supply device generates second torque relative to the main body during mooring; the first torque and the second torque are equal in magnitude and opposite in direction. The first self-energy-supply device and the second self-energy-supply device generate two moments which are equal in magnitude and opposite in direction, and the overturning risk of the energy supply platform is eliminated.

Description

Technical Field

[0001] This invention relates to the field of underwater in-situ power supply technology, and in particular to a self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine. Background Technology

[0002] Ocean observation is fundamental to the development of marine resources, and various power supply platforms are crucial equipment for ocean observation. However, the power supply problem for these platforms is a bottleneck restricting their operation. Compared to land-based and ship-based power supply, utilizing ocean currents for distributed power supply to various power supply platforms can significantly reduce ocean monitoring costs and enable long-term ocean observation in any sea area. However, when using ocean currents for in-situ power supply to various power supply platforms, the current's influence on the platform can continuously generate deflection torque, causing the moored observation system to lose its balance and risk capsizing. Summary of the Invention

[0003] In view of this, the present invention provides a self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine.

[0004] Specifically, the following technical solutions are included: This application provides a self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine, comprising: The main body has a receiving cavity, and the energy storage device is placed in the receiving cavity; A mooring structure, which is connected to the main body, is used to moor the main body in an ocean current; The first self-powered device is rotatably connected to the main body on the same axis and electrically connected to the energy storage device. When moored, the first self-powered device generates a first torque relative to the main body. The second self-powered device is rotatably connected to the main body on the same axis and electrically connected to the energy storage device. When moored, the second self-powered device generates a second torque relative to the main body. The first torque and the second torque are equal in magnitude and opposite in direction.

[0005] Preferably, the first self-powered device and the second self-powered device are arranged parallel to each other and spaced apart along the axial extension direction of the main body; The first self-powered device is disposed near the first end of the main body, and the second self-powered device is disposed near the second end of the main body; The first end and the second end of the main body are arranged opposite to each other.

[0006] Preferably, the projected area of ​​the first self-powered device on the projection surface is the first area; The projected area of ​​the second self-powered device on the projection surface is the second area; The projection surface is arranged parallel to the cross-section of the main body; The ratio of the first area to the second area is 0.6-1.6.

[0007] Preferably, the first self-powered device includes a first turbine structure and a first power generation structure. The first power generation structure includes a first active component and a first passive component. The first turbine structure is sleeved on the main body. The first turbine structure and the main body are rotatably connected by a first bearing. The first active component is disposed on the first bearing. The first passive component is disposed in the receiving cavity of the main body. The first passive component and the energy storage device are electrically connected. The first active component and the first passive component are disposed opposite to each other. The second self-powered device includes a second turbine structure and a second power generation structure. The second power generation structure includes a second active component and a second passive component. The second turbine structure is sleeved on the main body. The second turbine structure and the main body are rotatably connected by a second bearing. The second active component is disposed on the second bearing. The second passive component is disposed in the receiving cavity of the main body. The second passive component and the energy storage device are electrically connected. The second active component and the second passive component are disposed opposite to each other.

[0008] Preferably, the first turbine structure includes a first hub, a first support, and a first blade. The first hub is a cylindrical structure, and the inner wall of the first hub is connected to the main body. The first support extends along the radial direction of the main body. The first blade and the first hub are connected through the first support. Multiple first blades are provided, and the multiple first blades are evenly arranged circumferentially along the axis of the main body. The second turbine structure includes a second hub, a second support, and a second blade. The second hub is a cylindrical structure, and the inner wall of the second hub is connected to the main body. The second support extends along the radial direction of the main body. The second blade and the second hub are connected through the second support. Multiple second blades are provided, and the multiple second blades are evenly arranged circumferentially along the axis of the main body.

[0009] Preferably, the first blade includes a first frame and a first flexible wing, the first frame is connected to the first support, the plane of the first frame is perpendicular to the first support, and the first flexible wing is disposed on the first frame; The second blade includes a second frame and a second flexible wing. The second frame and the second support are connected. The plane of the second frame is perpendicular to the second support. The second flexible wing is disposed on the second frame.

[0010] Preferably, the free edge of the first flexible wing is disposed on the first side of the first bracket, and the first side of the first bracket and the second side of the first bracket are disposed opposite to each other; The free edge of the second flexible wing is disposed on the second side of the second support, and the first side of the second support and the second side of the second support are disposed opposite to each other; The first side of the first bracket and the first side of the second bracket are disposed on the same side, and the second side of the first bracket and the second side of the second bracket are disposed on the same side.

[0011] Preferably, the first blade of the first self-powered device is provided with 4-20 blades; The second blade of the second self-powered device is provided with 4-20 blades.

[0012] Preferably, the angle between the maximum swing amplitude of the first blade and the plane where the first frame is located is the first angle; The angle between the maximum swing amplitude of the second blade and the plane where the second frame is located is the second angle; The first included angle and the second included angle are equal.

[0013] Preferably, the first included angle and the second included angle are 60°.

[0014] The beneficial effects of the technical solution provided by this invention include at least the following: This application generates two equal and opposite torques through a first self-powered device and a second self-powered device, which enables the power supply platform to maintain balance under the action of ocean currents and eliminates the risk of the power supply platform overturning. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an isometric view of a power supply platform according to an embodiment of the present invention; Figure 2 This is a perspective axonometric view of a power supply platform according to an embodiment of the present invention; Figure 3 This is a front view of an energy supply platform according to an embodiment of the present invention; Figure 4 This is a perspective front view of an energy supply platform according to an embodiment of the present invention; Figure 5This is a front view of a power supply platform without a main body according to an embodiment of the present invention; Figure 6 This is a transparent front view of a power supply platform without a main body according to an embodiment of the present invention; Figure 7 This is a top view of a power supply platform without a main body according to an embodiment of the present invention; Figure 8 This is a transparent top view of a power supply platform without a main body according to an embodiment of the present invention; Figure 9 This is a schematic diagram illustrating the working principle of a blade according to an embodiment of the present invention; Figure 10 This is a schematic diagram illustrating the working principle of a first turbine structure according to an embodiment of the present invention; Figure 11 This is a schematic diagram illustrating the working principle of the second turbine structure according to an embodiment of the present invention; Figure 12 This is an isometric view of a mooring device according to an embodiment of the present invention; Figure 13 This is a transparent axonometric view of a mooring device according to an embodiment of the present invention; Figure 14 This is a schematic diagram of the operation of an energy supply platform according to an embodiment of the present invention.

[0017] The reference numerals in the figure are respectively: 1-Main body; 2-Observation equipment; 3-Mooring structure; 3-1-Mooring hull; 3-2-Roller power unit; 3-3-Roller reel; 3-4-Cable; 3-5-Anchor; 4-First turbine structure; 4-1-First blade; 4-2-First hub; 4-3-First support; 5-Energy storage device; 6-First active component; 7-First passive component; 8-Second turbine structure; 8-1-Second blade; 8-2-Second hub; 8-3-Second support; 9-Second active component; 10-Second passive component.

[0018] The accompanying drawings have illustrated specific embodiments of the invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Before providing a further detailed description of the embodiments of the present invention, the directional terms used in the embodiments of the present invention, such as "upper part," "lower part," and "side part," are used to refer to... Figure 1 The orientation shown is a reference and does not limit the scope of protection of this invention.

[0021] To make the technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0022] like Figures 1 to 14 As shown, this application provides a counter-rotating energy supply platform, comprising: a main body 1 having a receiving cavity, wherein an energy storage device 5 is placed in the receiving cavity of the main body 1; a mooring structure 3 connected to the main body 1, the mooring structure 3 being used to moor the main body 1 in an ocean current; a first self-powered device, the first self-powered device being coaxially rotatably connected to the main body 1 and electrically connected to the energy storage device 5, wherein the first self-powered device generates a first torque relative to the main body 1 during mooring; and a second self-powered device, the second self-powered device being coaxially rotatably connected to the main body 1 and electrically connected to the energy storage device 5, wherein the second self-powered device generates a second torque relative to the main body 1 during mooring. The first and second self-powered devices are used to convert ocean current energy into chemical energy in the energy storage device 5. The first torque and the second torque are equal in magnitude and opposite in direction. This application uses a first self-powered device and a second self-powered device that rotate relative to each other to convert ocean current energy into chemical energy in the energy storage device 5. At the same time, the first self-powered device and the second self-powered device generate a first torque and a second torque that are equal in magnitude and opposite in direction, so that the power supply platform can maintain balance under the action of ocean current and eliminate the risk of the power supply platform overturning.

[0023] like Figure 14 As shown, the power supply platform is suspended in the ocean current, and the main body 1 of the power supply platform is in a vertical position.

[0024] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the main body 1 is a pressure-resistant shell. Observation equipment 2, including hydrological monitoring equipment, is installed inside the main body 1. The observation equipment 2 is located at the lower end of the main body 1. The energy storage device 5, including a battery pack, is located within the housing cavity of the main body 1, near the upper end of the main body 1. The observation equipment 2 within the main body 1 operates continuously, collecting and storing important hydrological data. The electrical energy required for its operation is provided by the energy storage device 5. The energy storage device 5, located within the housing cavity of the main body 1, ensures efficient energy conversion and stable storage.

[0025] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the first self-powered device and the second self-powered device are arranged parallel to each other and spaced apart along the axial direction of the main body 1. The first self-powered device is located near the first end of the main body 1, and the second self-powered device is located near the second end of the main body 1. The first end and the second end of the main body 1 are arranged opposite to each other. Specifically, in this embodiment, the first end of the main body 1 is the upper end of the main body 1, and the second end of the main body 1 is the lower end of the main body 1. The first self-powered device is located on the upper side, and the second self-powered device is located on the lower side, with a gap between the first self-powered device and the second self-powered device. Figure 10 and Figure 11 The direction of the ocean current, indicated by the thick arrow on the left, is perpendicular to the axis of the main body 1. When the direction of the ocean current is perpendicular to the axis of the main body 1, the ocean current causes the first self-powered device and the second self-powered device to rotate circumferentially along the axis of the main body 1.

[0026] Specifically, the projected area of ​​the first self-powered device on the projection surface is called the first area, and the projected area of ​​the second self-powered device on the projection surface is called the second area. The projection surface is parallel to the cross-section of the main body 1. The ratio of the first area to the second area is 0.6-1.6. By adjusting the ratio between the first area and the second area, the two self-powered devices can generate the same torque.

[0027] Specifically, the first self-powered device includes a first turbine structure 4 and a first power generation structure. The first power generation structure includes a first active component 6 and a first passive component 7. The first turbine structure 4 is mounted on the main body 1. The first turbine structure 4 and the main body 1 are rotatably connected by a first bearing. The first active component 6 is mounted on the first bearing. The first passive component 7 is mounted in the receiving cavity of the main body 1. The first passive component 7 is electrically connected to the energy storage device 5. The first active component 6 and the first passive component 7 are arranged opposite to each other.

[0028] Specifically, the second self-powered device includes a second turbine structure 8 and a second power generation structure. The second power generation structure includes a second active component 9 and a second passive component 10. The second turbine structure 8 is mounted on the main body 1. The second turbine structure 8 and the main body 1 are rotatably connected by a second bearing. The second active component 9 is mounted on the second bearing. The second passive component 10 is mounted in the receiving cavity of the main body 1. The second passive component 10 is electrically connected to the energy storage device 5. The second active component 9 and the second passive component 10 are arranged opposite to each other.

[0029] Specifically, such as Figure 2 and Figure 4As shown, the first active component 6 and the second active component 9 are both permanent magnet pole groups, composed of multiple centrally symmetrical permanent magnet poles. The first active component 6 is tightly connected to the side of the first bearing, and the second active component 9 is tightly connected to the side of the second bearing. The first passive component 7 and the second passive component 10 can each take two forms: one is a coil group composed of centrally symmetrical coils, which directly generates an induced current under the action of a magnetic field, and then stores it in the energy storage device 5 in the form of chemical energy; the other is a combination of a permanent magnet and a generator, where the permanent magnet poles rotate under the action of an alternating magnetic field, driving the generator to generate current, which is also stored in the energy storage device 5 in the form of chemical energy. The first turbine structure 4 and the second turbine structure 8 rotate relative to the main body 1 under the action of the ocean current. The first turbine structure 4 drives the first active component 6 to rotate, generating an alternating magnetic field between the first active component 6 and the first passive component 7. The second turbine structure 8 drives the second active component 9 to rotate, generating an alternating magnetic field between the second active component 9 and the second passive component 10. Thus, the ocean current energy is converted into chemical energy in the energy storage device 5 through the first power generation structure and the second power generation structure, respectively.

[0030] Specifically, in one embodiment, one first bearing and one second bearing are each provided. In another embodiment, at least two first bearings and at least two second bearings may be provided, with at least two first bearings provided between the first self-powered device and the main body to ensure the connection stability between the self-powered device and the main body, and the second bearing provided between the second self-powered device and the main body to ensure the connection stability between the self-powered device and the main body.

[0031] Furthermore, the first direction is either counterclockwise or clockwise, and the second direction is either clockwise or counterclockwise; the first and second directions are always opposite. This ensures that the first and second torques generated by the two self-powered devices are in opposite directions.

[0032] Specifically, such as Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the first turbine structure 4 includes a first hub 4-2, a first support 4-3, and a first blade 4-1. The first hub 4-2 is a cylindrical structure, and its inner wall is connected to the main body 1 via a first bearing. The first support 4-3 extends radially along the main body 1, and the first blade 4-1 and the first hub 4-2 are connected via the first support 4-3. Multiple first blades 4-1 are provided, and the multiple first blades 4-1 are evenly arranged circumferentially along the axis of the main body 1. The second turbine structure 8 includes a second hub 8-2, a second support 8-3, and a second blade 8-1. The second hub 8-2 is a cylindrical structure, and its inner wall is connected to the main body via a second bearing. The second support 8-3 extends radially along the main body 1, and the second blade 8-1 and the second hub 8-2 are connected via the second support 8-3. Multiple second blades 8-1 are provided, and the multiple second blades 8-1 are evenly arranged circumferentially along the axis of the main body 1.

[0033] Specifically, the first support 4-3 includes three intersecting connecting rods, with their midpoints intersecting. The first end of each connecting rod connects to the outer wall of the first hub 4-2, and the second end connects to the first blade 4-1. The second support 8-3 also includes three intersecting connecting rods, with their midpoints intersecting. The first end of each connecting rod connects to the outer wall of the second hub 8-2, and the second end connects to the second blade 8-1. The use of connecting rods in both the first and second supports 4-3 reduces the overall weight of the power supply platform and improves its self-starting capability.

[0034] Specifically, such as Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the first blade 4-1 includes a first frame and a first flexible wing. The first frame and the first support 4-3 are connected. The plane of the first frame is perpendicular to the first support 4-3. The first flexible wing is disposed on the first frame. The second blade 8-1 includes a second frame and a second flexible wing. The second frame and the second support 8-3 are connected. The plane of the second frame is perpendicular to the second support 8-3. The second flexible wing is disposed on the second frame.

[0035] Specifically, the first flexible wing is rectangular or trapezoidal, and the shape of the first frame matches the shape of the first flexible wing. The second flexible wing is rectangular or trapezoidal, and the shape of the second frame matches the shape of the second flexible wing.

[0036] Specifically, the first frame is a quadrilateral with three sides, and the missing sides give the first flexible wing a free edge. Under the influence of ocean currents, the free edge of the first flexible wing will undergo flow-induced deformation, such as... Figure 9As shown, the second flexible wing exhibits three attitudes: outward swing, transition state, and inward swing. The second frame is a quadrilateral with three sides; the missing sides give the second flexible wing a free edge. Under the influence of ocean currents, the free edge of the second flexible wing undergoes flow-induced deformation, such as... Figure 9 As shown, it includes three postures: outward swing, transition state, and inward swing.

[0037] Specifically, the free edge of the first flexible wing is located on the first side of the first support 4-3, and the first side and the second side of the first support 4-3 are arranged opposite each other. The free edge of the second flexible wing is located on the second side of the second support 8-3, and the first side and the second side of the second support 8-3 are arranged opposite each other. The first side of the first support 4-3 and the first side of the second support 8-3 are arranged on the same side, and the second side of the first support 4-3 and the second side of the second support 8-3 are arranged on the same side.

[0038] For example, such as Figure 7 As shown in the diagram, the first support 4-3 and the second support 8-3 have the following configurations: the first side of the first support 4-3 is its left side, and the second side is its right side. Similarly, the first side of the second support 8-3 is its left side, and the second side is its right side. The first frame is located on the left side of the first support 4-3, and the free edge of the first flexible wing is located on the left side of the first frame. Under the influence of ocean currents, the first flexible wing cyclically exhibits three attitudes: inward swinging, transitional state, and outward swinging, achieving clockwise rotation. The second frame is located on the right side of the second support 8-3, and the free edge of the second flexible wing is located on the right side of the second support 8-3. Under the influence of ocean currents, the first flexible wing cyclically exhibits three attitudes: inward swinging, transitional state, and outward swinging, achieving counterclockwise rotation. Figure 9 , Figure 10 , Figure 11 As shown, when the ocean current acts on the flexible wing, it will first cause the free edge of the flexible wing on the windward side (the side closer to the incoming current) to swing towards the center. At this time, part of the ocean current that is about to pass through the drag surface of the flexible wing can be guided to the dynamic surface, so that the flexible wing can obtain a greater dynamic torque under the action of the ocean current, thereby increasing the hydrodynamic performance of the turbine structure. On the other hand, the free end of the flexible wing on the leeward side (the side away from the incoming current) will swing towards the circumference, and obtain a positive torque again, thus further improving the efficiency of the turbine structure.

[0039] In this embodiment, the first blade 4-1 and the second blade 8-1 are installed in opposite directions, causing the first turbine structure 4 and the second turbine structure 8 to generate torques in opposite directions under the action of ocean currents, effectively maintaining the stable attitude of the power supply platform. Even when facing ocean currents with varying velocity gradients, torque balance can be ensured by adjusting the geometric parameters of the first turbine structure 4 and the second turbine structure 8.

[0040] In this embodiment, the first and second flexible blades are made of flexible thin film material, with one long side serving as a free side. This allows them to undergo large-scale flow-induced deformation under the influence of ocean currents, adapting to different rotational positions to achieve optimal instantaneous attitude. This ensures that the first turbine structure 4 and the second turbine structure 8 possess excellent hydrodynamic performance. Furthermore, this structure, consisting of the first blade 4-1 made of flexible thin film material and the first frame, and the second blade 8-1 made of the second frame, is extremely lightweight, enabling the conversion of ocean current energy over a larger area with the same mass.

[0041] Furthermore, the first blade 4-1 of the first self-powered device is configured with 4-20 blades; the second blade 8-1 of the second self-powered device is configured with 4-20 blades. The number of first blades 4-1 and second blades 8-1 is set according to requirements.

[0042] Furthermore, such as Figure 10 and Figure 11 As shown, the angle between the maximum swing amplitude of the first blade 4-1 and the plane where the first frame is located is the first included angle α; the angle between the maximum swing amplitude of the second blade 8-1 and the plane where the second frame is located is the second included angle β; the first included angle α and the second included angle β are equal.

[0043] Furthermore, the maximum swing amplitude of the first blade 4-1 is the maximum swing angle of the first flexible wing when the first blade 4-1 undergoes maximum fluidized deformation, that is, the maximum angle between the free edge of the first flexible wing and the plane where the first frame is located; the maximum swing angle of the second blade 8-1 is the maximum swing angle of the second flexible wing when the second blade 8-1 undergoes maximum fluidized deformation, that is, the maximum angle between the free edge of the second flexible wing and the plane where the second frame is located. The first angle β and the second angle α are both 60°, and the maximum angle at which the first flexible wing and the second flexible wing swing outward or inward is 60°.

[0044] Furthermore, in this embodiment, as Figure 12 , Figure 13 , Figure 14 As shown, the power supply platform includes a mooring structure 3; the mooring structure 3 includes a mooring shell 3-1, a spool power unit 3-2, a spool 3-3, a cable 3-4, and an anchor 3-5; the mooring shell 3-1 is connected to the main body 1, the spool power unit 3-2 is installed in the mooring shell 3-1, the spool power unit 3-2 is connected to the spool 3-3, the cable 3-4 is wound on the spool 3-3, and the anchor 3-5 is installed at one end of the cable 3-4.

[0045] Specifically, the mooring hull 3-1 is fixed to the main body 1. A reel power unit 3-2 is installed inside the mooring hull 3-1. The output end of the reel power unit 3-2 is connected to a reel 3-3, causing the reel 3-3 to rotate, thereby releasing or tightening the cable 3-4. The end of the cable 3-4 is connected to an anchor 3-5. The reel power unit 3-2 changes the depth of the power supply platform by adjusting the scaling length of the cable 3-4, thus enabling the power supply platform to obtain a strong ocean current.

[0046] Furthermore, the power supply platform is also equipped with a power supply interface to facilitate the supply of power to various observation equipment.

[0047] Specifically, as a specific example, such as Figure 13 As shown, the power supply platform is lowered into the ocean by the research vessel. The mooring structure 3 automatically lowers the anchor 3-5, allowing the power supply platform to hover in the ocean current. It then performs tasks such as marine resource exploration, hydrological data measurement, and powering various observation equipment. The first turbine structure 4 rotates under the influence of the ocean current, driving the first active component 6 to rotate. An alternating magnetic field is generated between the first active component 6 and the first passive component 7. Under the influence of this alternating magnetic field, the first passive component 7, composed of several centrally symmetrically installed coils, directly generates an induced current, ultimately converting the ocean current energy into electrical energy and storing it in the energy storage device 5. Similarly, the second turbine structure 8 rotates under the influence of the ocean current, driving the second active component 9 to rotate. An alternating magnetic field is generated between the second active component 9 and the second passive component 10. Under the influence of this alternating magnetic field, the second passive component 10, composed of several centrally symmetrically installed coils, directly generates an induced current, ultimately converting the ocean current energy into electrical energy and storing it in the energy storage device 5.

[0048] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "a plurality" refers to two or more unless otherwise expressly defined. The term "connection" refers to a direct or indirect connection.

[0049] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0050] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine, characterized in that, include: The main body has a receiving cavity, and the energy storage device is placed in the receiving cavity; A mooring structure, which is connected to the main body, is used to moor the main body in an ocean current; The first self-powered device is rotatably connected to the main body on the same axis and electrically connected to the energy storage device. When moored, the first self-powered device generates a first torque relative to the main body. The second self-powered device is rotatably connected to the main body on the same axis and electrically connected to the energy storage device. When moored, the second self-powered device generates a second torque relative to the main body. The first torque and the second torque are equal in magnitude and opposite in direction.

2. The self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine according to claim 1, characterized in that, The first self-powered device and the second self-powered device are arranged parallel to each other and spaced apart along the axial extension direction of the main body; The first self-powered device is disposed near the first end of the main body, and the second self-powered device is disposed near the second end of the main body; The first end and the second end of the main body are arranged opposite to each other.

3. The self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine according to claim 1, characterized in that, The projected area of ​​the first self-powered device on the projection surface is the first area; The projected area of ​​the second self-powered device on the projection surface is the second area; The projection surface is arranged parallel to the cross-section of the main body; The ratio of the first area to the second area is 0.6-1.

6.

4. The self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine according to claim 1, characterized in that, The first self-powered device includes a first turbine structure and a first power generation structure. The first power generation structure includes a first active component and a first passive component. The first turbine structure is sleeved on the main body. The first turbine structure and the main body are rotatably connected by a first bearing. The first active component is disposed on the first bearing or the first turbine structure. The first passive component is disposed in the receiving cavity of the main body. The first passive component and the energy storage device are electrically connected. The first active component and the first passive component are disposed opposite to each other. The second self-powered device includes a second turbine structure and a second power generation structure. The second power generation structure includes a second active component and a second passive component. The second turbine structure is sleeved on the main body. The second turbine structure and the main body are rotatably connected by a second bearing. The second active component is disposed on the second bearing or the second turbine structure. The second passive component is disposed in the receiving cavity of the main body. The second passive component and the energy storage device are electrically connected. The second active component and the second passive component are disposed opposite to each other.

5. The self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine according to claim 4, characterized in that, The first turbine structure includes a first hub, a first support, and a first blade. The first hub is a cylindrical structure, and the inner wall of the first hub is connected to the main body. The first support extends along the radial direction of the main body. The first blade and the first hub are connected through the first support. Multiple first blades are provided, and the multiple first blades are evenly arranged circumferentially along the axis of the main body. The second turbine structure includes a second hub, a second support, and a second blade. The second hub is a cylindrical structure, and the inner wall of the second hub is connected to the main body. The second support extends along the radial direction of the main body. The second blade and the second hub are connected through the second support. Multiple second blades are provided, and the multiple second blades are evenly arranged circumferentially along the axis of the main body.

6. The self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine according to claim 5, characterized in that, The first blade includes a first frame and a first flexible wing. The first frame is connected to the first support. The plane of the first frame is perpendicular to the first support. The first flexible wing is disposed on the first frame. The second blade includes a second frame and a second flexible wing. The second frame and the second support are connected. The plane of the second frame is perpendicular to the second support. The second flexible wing is disposed on the second frame.

7. The self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine according to claim 6, characterized in that, The free edge of the first flexible wing is disposed on the first side of the first bracket, and the first side of the first bracket and the second side of the first bracket are disposed opposite to each other; The free edge of the second flexible wing is disposed on the second side of the second support, and the first side of the second support and the second side of the second support are disposed opposite to each other; The first side of the first bracket and the first side of the second bracket are disposed on the same side, and the second side of the first bracket and the second side of the second bracket are disposed on the same side.

8. The self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine according to claim 5, characterized in that, The first self-powered device has 4-20 first blades; The second blade of the second self-powered device is provided with 4-20 blades.

9. The self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine according to claim 6, characterized in that, The angle between the maximum swing amplitude of the first blade and the plane where the first frame is located is the first angle; The angle between the maximum swing amplitude of the second blade and the plane where the second frame is located is the second angle; The first included angle and the second included angle are equal.

10. The self-balancing underwater power supply platform based on a counter-rotating flexible blade turbine according to claim 9, characterized in that, The first included angle and the second included angle are 60°.

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