Tidal range self-adjusting type wave power generation device

Abstract

The invention relates to the technical field of wave power generation, in particular to a tidal range self-adjusting type wave power generation device. The power generation unit comprises a power generation unit and a traction component; the two ends of the traction component are connected with the suspension balance weight unit and the bottom sinking unit respectively. When the tidal range changes, the power generation unit and the traction component enter a power generation waiting state, the floating body drives the suspension counterweight unit to move up and down synchronously, the power generation device reaches a balanced state, the power generation unit and the traction component are promoted to enter a power generation state, and mechanical energy generated when the floating body moves up and down along with waves is converted into electric energy. According to the invention, through the suspension counterweight unit, the traction component is kept in a proper tensioning state under different tidal range conditions, and can automatically adapt to rising and falling of tidal ranges without an additional mechanical adjusting mechanism, so that the problems of power generation efficiency reduction and structural fatigue caused by traction relaxation or excessive stretching in a traditional device are effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of wave energy power generation technology, and specifically to a tidal range self-regulating wave energy power generation device. Background Technology

[0002] As the global energy structure shifts towards cleaner and lower-carbon energy, ocean energy utilization technology has gradually become a research hotspot. Among them, wave energy has attracted widespread attention due to its high energy density, predictability, and abundant resources. However, existing wave energy power generation devices generally suffer from problems such as low energy capture efficiency, complex structure, high maintenance costs, and difficulty in adapting to complex sea conditions. Especially in nearshore or deep-sea areas with large tidal ranges, changes in tidal range can cause the travel distance between the floating body and the power generation mechanism to shift, placing the energy conversion mechanism in a suboptimal operating position and significantly reducing power generation efficiency.

[0003] Most mainstream wave energy devices currently rely on a floating body that reciprocates with the waves, driving a generator to output electrical energy via a mechanical transmission system. However, when the tidal range changes periodically, the static position of the floating body rises or falls accordingly. Traditional devices typically use fixed-length traction elements or limiting structures, which prevents the device from automatically compensating for the travel deviation caused by the tidal range. On the one hand, when the tidal range rises, the traction mechanism may become loose, causing the power generation unit to be unable to bear the force properly; on the other hand, when the tidal range falls, the traction mechanism may be in a state of overstretching, leading to fatigue damage or even structural failure. Summary of the Invention

[0004] (a) Purpose of the invention The purpose of this invention is to provide a tidal self-adjusting wave energy power generation device. Through a suspended counterweight unit, the traction component maintains an appropriate tension under different tidal conditions. It can automatically adapt to the rise and fall of the tidal range without the need for additional mechanical adjustment mechanisms, effectively avoiding the problems of reduced power generation efficiency and structural fatigue caused by traction slack or excessive stretching in traditional devices.

[0005] (II) Technical Solution To address the above problems, this invention provides a tidal range self-regulating wave energy generation device, comprising: Floating body, suspended counterweight unit, bottom sinking unit, power generation unit, and traction components; The power generation unit is connected to the floating body; The power generation unit is connected to the traction component, and the traction component extends from the power generation unit to a first end and a second end, which are respectively connected to the suspended counterweight unit and the sinking unit. The power generation unit is configured to control the length changes of the first and second ends of the traction member when the tidal range changes so that the power generation device reaches a balanced state; and in the balanced state, to convert the mechanical energy of the buoy moving up and down with the waves into electrical energy.

[0006] In another aspect of the invention, preferably, the sum of the gravity values ​​of the suspended counterweight unit and the power generation unit is equivalent to the buoyancy value of the floating body.

[0007] In another aspect of the present invention, preferably, the power generation unit includes a power generation component, a transmission component, and a locking component; The power generation component is connected to the traction component via the transmission component and the locking component; The locking assembly is used to unlock the transmission assembly from the traction member when the tidal range changes, and to lock the transmission assembly when the power generation device reaches a balanced state. The transmission component is used to transmit the reciprocating traction motion of the traction member to the power generation component, thereby driving the power generation component to generate electricity.

[0008] In another aspect of the invention, preferably, the transmission assembly includes a gear and a rack; The gear and rack mesh, the gear is connected to the input shaft of the power generation component, and the rack is connected to the locking component; When the locking assembly is locked to the traction member, the rack moves back and forth under the drive of the traction member, driving the gear to rotate and driving the power generation assembly to generate electricity; When the locking component unlocks from the traction component, the rack stops moving and the power generation component stops generating electricity.

[0009] In another aspect of the invention, preferably, the locking assembly includes a controller and a locking member, the controller being electrically connected to the locking member; The controller is used to collect tidal range change information, drive the locking member to unlock the traction member according to the tidal range change information, and drive the locking member to press the traction member when the power generation device reaches a balanced state.

[0010] In another aspect of the present invention, preferably, the power generation unit further includes a guide member and a limiting member, wherein the guiding direction of the guide member is the same as the movement direction of the rack, and the rack is disposed in the guide groove of the guide member; The limiting member is disposed at the end of the guide member and is used to limit the maximum stroke of the rack in the guide groove.

[0011] In another aspect of the present invention, preferably, the power generation unit further includes a defibrillation component; The defibrillation assembly includes a stop, a roller, an elastic member, and a defibrillation base; The roller shaft is rotatably connected to the stop block, the elastic member is fixedly connected to the stop block and the defibrillator base, and the roller is rotatably connected to the traction member; The rollers sequentially transmit the instantaneous force of the traction component to the stop and the elastic component. The elastic component absorbs and buffers the instantaneous force, thereby stabilizing the traction component.

[0012] In another aspect of the present invention, preferably, the power generation unit further includes a housing, a guide wheel is disposed inside the housing, the guide wheel is rotatably connected to the housing, and the traction member is rollingly connected to the guide wheel; The housing includes a first through hole and a second through hole. The traction member is sequentially inserted through the first through hole, the guide wheel, and the second through hole. The traction member is directionally supported and steered through the guide wheel.

[0013] In another aspect of the present invention, preferably, the housing further includes a protective cover disposed outside the housing, the protective cover being disposed at the first through hole and the second through hole.

[0014] In another aspect of the present invention, preferably, the protective cover is configured as a flared structure, wherein the smaller diameter end face of the flared structure is connected to the housing.

[0015] (III) Beneficial Effects The above-described technical solution of the present invention has the following beneficial technical effects: The self-regulating wave energy generation device of this invention achieves automatic tidal range compensation and efficient wave energy capture through the coordinated design of a floating body, a power generation unit, a suspended counterweight unit, and a submerged unit. The floating body drives the suspended counterweight unit to move up and down, transmitting the energy to the power generation unit, making full use of the up-and-down wave motion of the floating body to improve energy conversion efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic diagram of a power generation device before and after tidal range changes according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of the overall structure of a power generation unit according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the locking assembly structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a defibrillator assembly structure according to an embodiment of the present invention; Figure label: 100: Floating body, 200: Suspension counterweight unit, 300: Bottom-sinking unit 400: Power generation unit; 410: Power generation assembly; 420: Transmission assembly; 421: Gear; 422: Rack; 430: Locking assembly; 431: Controller; 432: Locking element. 440: Guide component; 450: Limiting component; 460: Defibrillator assembly; 461: Stop; 462: Roller; 463: Elastic component; 464: Defibrillator base. 470: Housing; 471: Guide wheel; 472: First through hole; 473: Second through hole; 474: Protective cover. 500: Traction component. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0018] The accompanying drawings show structural schematic diagrams according to embodiments of the present invention. These drawings are not drawn to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0019] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] The invention will now be described in more detail with reference to the accompanying drawings. In the various drawings, the same elements are indicated by similar reference numerals. For clarity, the various parts in the drawings are not drawn to scale.

[0023] Example 1 A self-regulating wave energy generation device based on tidal range. Figure 1 A schematic diagram of the overall structure of an embodiment of the present invention is shown as follows: Figure 1 As shown, the power generation device includes a float 100, a suspended counterweight unit 200, a bottom-sinking unit 300, a power generation unit 400, and a traction component 500. The float 100 floats on the sea surface and moves up and down with the waves, providing mechanical energy to the power generation unit. The power generation unit, the suspended counterweight unit 200, and the bottom-sinking unit 300 are all located below the sea surface, and the power generation unit is connected to the float 100. The connection method between the power generation unit and the float 100 is not limited here; optionally, it can be connected through a connecting structure. The connecting structure can be a connecting rope, connecting chain, tie rod, elastic rope, adjustable steel cable, hinged rod, or other mechanical connectors that can achieve relative fixation or relative movement between the float 100 and the power generation unit 400. The connecting structure can reliably transfer the mechanical energy of the float 100 to the power generation unit 400 when the float 100 moves with the waves. The suspended counterweight unit 200 and the bottom-mounted unit 300 are positioned below the power generation unit 400. The bottom-mounted unit 300 is located at the very bottom of the entire device and is used to fix the position of the power generation device on the seabed. The suspended counterweight unit 200 is positioned above the bottom-mounted unit 300.

[0024] The power generation unit 400 is connected to the traction component 500. The traction component 500 extends from the power generation unit 400 to a first end and a second end, which are respectively connected to the suspended counterweight unit 200 and the sinking unit 300. The power generation unit 400 is configured to control the length changes of the first and second ends of the traction member 500 when the tidal range changes so that the power generation device reaches a balanced state; and in the balanced state, to convert the mechanical energy of the float 100 moving up and down with the waves into electrical energy.

[0025] The traction component 500 is used to transfer the mechanical energy of the float 100 moving up and down with the waves to the power generation unit 400, and to adjust the balance of the device. The traction component 500 can be a connecting rope, steel cable, chain, elastic rope, tie rod, hinged rod or other connecting component. In this embodiment, the traction component 500 is set as a rope.

[0026] Figure 2 A schematic diagram of a power generation device before and after tidal range changes according to an embodiment of the present invention is shown, as follows: Figure 2As shown, when the tidal range changes, the power generation unit 400 and the traction component 500 enter the standby power generation state. The float 100 drives the suspended counterweight unit 300 to move up and down, bringing the power generation device to a balanced state. Then, the power generation unit 400 and the traction component 500 enter the power generation state, converting the mechanical energy of the float 100 moving up and down with the waves into electrical energy. When the tidal range changes, it causes the float 100 to rise and fall by a large range. Since the suspended counterweight unit 300 is connected to the power generation unit 400 through the traction component 500, the rising and falling displacement of the float 100 will be transmitted to the suspended counterweight unit 300 and the power generation unit 400. The power generation unit 400 and the traction component 500 enter the standby power generation state, i.e., the unlocked state. In order to maintain overall balance, the traction component 500 adjusts the distance between the suspended counterweight unit 300 and the power generation unit 400, and keeps itself in a controllable tension state. After reaching equilibrium, the power generation unit 400 and the traction component 500 enter the power generation state, which is the locked state. At this time, the float 100 moves up and down with the waves within a small range, and the traction component 500 moves back and forth within a small range, driving the power generation unit 400 to generate electricity, thus realizing automatic tidal range compensation and efficient wave energy capture.

[0027] The sum of the weights of the suspended counterweight unit 200 and the power generation unit 400 is equivalent to the buoyancy of the float 100. Here, "equivalent" means that the difference between the total weight of the suspended counterweight unit 200 and the power generation unit 400 and the buoyancy generated by the float 100 under still water conditions is within a preset balance deviation range. This preset balance deviation range can be set empirically. The total weight of the suspended counterweight unit 300 and the power generation unit 400 is equivalent to the buoyancy provided by the float 100 under design conditions, meaning they are in a state of basic equilibrium. By adjusting the mass, volume, and arrangement of the suspended counterweight unit 300 during the initial installation phase, the float 100 is positioned at a preset draft in still water, providing a mechanical basis for self-regulating operation during subsequent tidal changes.

[0028] Figure 3 A cross-sectional view of the overall structure of a power generation unit according to an embodiment of the present invention is shown, in conjunction with... Figure 1 and Figure 3As shown, the power generation unit 400 includes a power generation component 410, a transmission component 420, and a locking component 430. The power generation component 410 converts the mechanical energy transmitted by the traction component 500 into electrical energy. The power generation component 410 can be a linear generator, a rotary generator, or other devices suitable for reciprocating motion power generation, such as an energy conversion mechanism composed of gear sets, crank-connecting rod sets, etc. The transmission component 420 is disposed between the power generation component 410 and the traction component 500, and is used to convert the reciprocating traction motion of the traction component 500 into the input motion form of the power generation component 410. The transmission component 420 can be a guide pulley, a transmission rod, a rack and pinion mechanism, a winding wheel assembly, a chain drive assembly, etc., and the specific transmission method is set according to the type of power generation component.

[0029] The power generation component 410 is connected to the traction component 500 via a transmission component 420 and a locking component 430. The locking component 430 unlocks the transmission component 420 from the traction component 500 during tidal changes and locks the transmission component 420 when the power generation device reaches a balanced state. The transmission component 420 transmits the reciprocating traction motion of the traction component 500 to the power generation component 410, enabling the power generation component 410 to generate electricity. This ensures stable traction power under different tidal conditions. The locking component 430 automatically switches the operating state of the transmission component 420 during tidal changes. When the traction component 500 is in a non-operating range or a relaxed state, the locking component 430 automatically releases, thus releasing the lock between the transmission component 420 and the traction component 500, allowing the traction component 500 to freely adjust its length and attitude in response to buoyancy changes caused by tidal fluctuations. Once the power generation device reaches equilibrium after the tidal range change ends, the locking assembly 430 locks the transmission assembly 420, restoring the linkage between the transmission assembly 420 and the traction component 500. This ensures that the reciprocating motion generated by subsequent wave drive can be effectively transmitted to the power generation assembly 410. The locking assembly 430 maintains a safe and low-loss mechanical state for the device during continuous tidal range changes, preventing fatigue damage to the traction component 500 caused by prolonged excessive tension or relaxation due to tidal range. Simultaneously, when the wave periodic action occurs, the transmission assembly 420, through its internal transmission mechanism, converts the reciprocating traction motion of the traction component 500 into an input form adapted to the power generation assembly 410, enabling the power generation assembly 410 to continuously generate electrical energy and achieve stable and efficient conversion of wave energy.

[0030] The locking assembly 430 can adopt a one-way ratchet structure, a mechanical locking structure, an electromagnetic clutch structure, or a hydraulic locking mechanism to achieve automatic unlocking and automatic locking functions. The transmission assembly 420 can be parametrically designed according to the movement amplitude of the traction component 500 and the input requirements of the power generation assembly 410, so that the system can maintain high energy transfer efficiency under different wave conditions. In this embodiment, through the coordinated design of the power generation assembly, transmission assembly, and locking assembly, the power generation unit 400 is in optimal operating condition during both tidal range changes and wave power generation phases, and the overall operation is stable and reliable.

[0031] Furthermore, in this embodiment, the transmission assembly 420 includes a gear 421 and a rack 422; Gear 421 and rack 422 mesh. Gear 421 is connected to the input shaft of generator assembly 410, converting the linear reciprocating motion of rack 422 into the rotational motion of the input shaft of generator assembly 410, thereby driving generator assembly 410 to generate electricity. Rack 422 is connected to locking assembly 430; it can switch whether it moves synchronously with traction member 500 according to the locked or unlocked state of locking assembly 430.

[0032] When the locking assembly 430 is locked to the traction member 500, the rack 422 reciprocates under the drive of the traction member 500, driving the gear 421 to rotate and thus powering the generator 410 to generate electricity. When the locking assembly 430 is unlocked from the traction member 500, the rack 422 stops moving, and the generator 410 stops generating electricity. The reciprocating linear motion of the rack 422 causes the meshing gear 421 to rotate in the corresponding forward and reverse directions, and the generator 410 completes one energy conversion in each round trip cycle. When the locking assembly 430 is in the unlocked state, the rack 422 no longer maintains mechanical coupling with the traction member 500, and the displacement of the traction member 500 caused by tidal changes is not transmitted to the rack 422, thus keeping the rack 422 stationary. The gear 421 and the generator 410 also stop generating electricity, avoiding ineffective wear under non-power generation conditions.

[0033] The power generation unit also includes a guide member 440 and a limiting member 450. The guiding direction of the guide member 440 is the same as the movement direction of the rack 422, and the rack 422 is disposed in the guide groove of the guide member 440. To ensure the smoothness and meshing accuracy of the rack 422 during reciprocating motion, the guide member 440 has a guide groove extending along the length of the rack 422, which is used to limit the rack 422 to move linearly only along a preset motion trajectory, avoiding lateral deviation, vertical jump, or torsion of the rack, thereby improving the meshing stability and transmission efficiency of the rack and gear 421. The guide member 440 can be made of metal profile, guide rail groove, or a composite structure with wear-resistant lining to adapt to the impact loads and corrosion conditions in the marine environment. The guide member 440 can be a long strip slide, slide rail, etc.

[0034] A limiting member 450 is disposed at the end of the guide member 440 to limit the maximum stroke of the rack 422 within the guide groove. To further prevent excessive displacement of the rack 422 under conditions of high wave height or large displacement, this embodiment provides a limiting member 450. The limiting member 450 is arranged at both ends of the guide member 440 and contacts the open end face of the guide groove to limit the maximum stroke of the rack 422. When the displacement of the traction member 500 exceeds the designed stroke, the rack 422 will be blocked at the limiting member 450, thereby preventing the rack 422 from disengaging from the meshing area of ​​the gear 421 due to overtravel, preventing meshing failure, tooth surface impact, or damage to the transmission components. The limiting member 450 can take the form of a limiting block, a rubber buffer block, an elastic energy-absorbing structure, or a metal end cap, etc., providing both rigid limiting and elastic buffering to reduce impact force and improve system reliability.

[0035] By using the guide member 440 and the limiting member 450, the rack 422 can maintain a stable, controllable, and safe movement trajectory throughout the entire reciprocating stroke, improving the meshing accuracy and service life between the gear 421 and the rack 422. This allows the transmission assembly 420 to maintain a high-efficiency, low-loss operating state during wave energy conversion. Combined with the automatic locking / unlocking function of the locking assembly 430, the power generation unit can safely switch between tidal range changes and wave power generation conditions, achieving long-term stable and reliable operation.

[0036] In this embodiment, the power generation unit also includes a housing 470, inside which a guide wheel 471 is provided. The guide wheel 471 can be located on the top of the housing 470 and is rotatably connected to the housing 470. The traction member 500 is arranged along the inside of the housing 470, bypassing the guide wheel 471, and is rotatably connected to the guide wheel 471. The traction member 500 is directionally supported and steered by the guide wheel 471. The guide wheel 471 is used to guide, limit, and support the movement path of the traction member 500, thereby ensuring that the traction member 500 runs smoothly and reliably during reciprocating motion.

[0037] The housing 470 includes a first through hole 472 and a second through hole 473. Both ends of the traction member 500 extend from the bottom of the housing 470 through the first through hole 472 and the second through hole 473, respectively, and connect to the suspended counterweight unit 300 and the submerged unit 400. The positions of the first through hole 472 and the second through hole 473 are opposite to the installation position of the guide wheel 471. The guide wheel 471 is located on the top inner side of the housing 470, while the first through hole 472 and the second through hole 473 are located at the bottom of the housing 470. The guide wheel 471 guides, limits, and supports the movement path of the traction member 500, thereby ensuring the smooth and reliable operation of the traction member 500 during reciprocating motion.

[0038] In this embodiment, the diameter of the guide wheel 471 is set to be the same as the size between the first through hole 472 and the second through hole 473, allowing the traction mechanism 500 to be naturally vertical. The diameter of the guide wheel 471 is positioned at the diameter of the annular surface that abuts against the traction member 500, enabling the traction member 500 to pass smoothly and without deviation through the guide path inside the housing 470. This not only ensures that the transmission direction of the traction member 500 is consistent with that of the power generation unit, but also prevents the traction member 500 from lateral deviation or entanglement under external force.

[0039] The axle of the guide wheel 471 is rotatably connected to the housing 470, allowing the guide wheel 471 to rotate freely. This reduces friction between the traction component 500 and the guide wheel 471, improves operating efficiency, and prevents unnecessary wear on the traction component 500. The guide wheel 471 can be made of corrosion-resistant and wear-resistant metal or engineering plastic materials to meet the long-term use requirements in marine environments.

[0040] Furthermore, in this embodiment, a support wheel is provided at the bottom inner side of the housing 470 and at the same vertical position as the guide wheel 471. The support wheel is used to make the movement of the rope smoother.

[0041] The housing 470 also includes a protective cover 474, which is disposed outside the housing 470 and at the first through hole 472 and the second through hole 473. The protective cover 474 protects the traction member 500 at its entry and exit points from the housing. The protective cover 474 is configured with a flared structure, and the smaller diameter end face of the flared structure connects to the housing 470. By improving the angle range of the traction member 500 entering and exiting the housing, stress concentration points are prevented, avoiding the problem of the traction member 500 breaking due to excessive local shear force in extreme cases.

[0042] Furthermore, in this embodiment, Figure 4 A schematic diagram of a locking assembly structure according to an embodiment of the present invention is shown, as follows: Figure 4 As shown, the locking assembly 430 includes a controller 431 and a locking element 432, with the controller 431 electrically connected to the locking element 432. The controller 431 is used to automatically control the movement of the locking element 432 based on tidal range changes, thereby achieving automatic locking and unlocking of the traction component 500. The controller 431 may include hardware units such as a microprocessor, a signal acquisition unit, a power supply unit, and an execution signal output unit, used to perform functions such as tidal range information acquisition, signal processing, logical judgment, and control signal output. Tidal range change information can be obtained through a tidal range sensor, a water pressure sensor, a float-type displacement sensor, an acceleration sensor, or a displacement gauge installed on the float 100, or through a data communication interface with an external tidal monitoring system.

[0043] The controller 431 is used to collect tidal range change information. The controller 431 analyzes the collected tidal range change information in real time, determining whether the device is currently in the tidal range change phase or the wave power generation phase based on the rate, direction, and amplitude of the tidal range change. Based on the tidal range change information, the controller drives the locking element 432 to unlock from the traction component 500. When the controller 431 determines that a tidal range change causes the traction component 500 to be in a position adjustment state and unable to maintain stable tension, the controller 431 sends an unlocking command to the locking element 432, causing the locking element 432 to release from the traction component 500. At this time, the traction component 500 can move freely under its own weight and the action of the suspension unit, keeping the power generation transmission link in a no-load state to avoid unnecessary fatigue or wear on the transmission component 420 and the power generation component 410 due to long-term displacement caused by tidal range changes. The locking element 432 can take the form of an electromagnetic brake structure, a mechanical clamping structure, a hydraulic or pneumatic clamping structure, etc. Electromagnetic brake structures can achieve rapid engagement and release through the electromagnetic force generated by excitation coils, making them suitable for scenarios requiring high response speeds. Mechanical clamping structures may include wedge-shaped blocks, clamping claws, eccentric cams, etc., and achieve clamping actions through motor drive or electromagnetic actuators. Hydraulic / pneumatic structures can drive the opening and closing of the clamping claws through oil cylinders or air cylinders, offering advantages such as high clamping force and suitability for marine environments. The clamping surface of the locking element 432 can be made of wear-resistant rubber, friction material, or metal tooth surface structure to improve the clamping reliability of the traction component 500. In this embodiment, the locking element 432 has a pointed structure, which can lock with the rope at any position.

[0044] When the power generation device reaches equilibrium, the locking element 432 presses against the traction component 500. After the tidal range change ends, the power generation device returns to a dynamic equilibrium state with the buoyancy of the float 100, and its tension and displacement changes tend to stabilize. The controller 431 continuously monitors the tidal range information and the displacement change trend of the traction component 500 to determine whether the power generation device has reached the equilibrium threshold for switching to the power generation state. When the controller 431 determines that the equilibrium condition is met, it sends a locking command to the locking element 432, causing the locking element 432 to press against the traction component 500 and maintain its mechanical coupling relationship with the rack 422. At this time, the reciprocating motion of the traction component 500 under wave drive can be reliably transmitted to the rack 422 through the locking element 430, thereby driving the gear 421 to rotate and realize power generation.

[0045] In this embodiment, the locking assembly 430 is a power-off brake structure, which includes basic components such as a brake housing, an excitation coil, an armature assembly, a brake spring, and a locking friction plate. The excitation coil is arranged inside the brake housing, and the armature assembly can reciprocate between excitation force and spring force. The brake spring is used to push the armature in the braking direction to tighten after the excitation coil is de-energized, generating a locking force. The locking friction plate is disposed between the working surfaces of the armature assembly and the traction member 500 to improve the clamping effect and reduce wear caused by direct metal-to-metal contact.

[0046] When the controller 431 supplies current to the excitation coil, the excitation coil generates an electromagnetic attraction force, driving the armature to overcome the elastic force of the brake spring and be attracted to the coil direction, thereby causing the locking member 432 to disengage from the traction member 500, achieving the unlocked state. At this time, the traction member 500 can move freely under the displacement caused by the tidal range change, avoiding the transmission component 420 and the power generation component 410 from bearing the additional stress caused by the tidal range displacement.

[0047] When the tidal range stabilizes and the generator gradually returns to its equilibrium position, controller 431 disconnects the power supply to the excitation coil. With the excitation coil de-energized, its electromagnetic attraction disappears, and the brake spring pushes the armature to move in the opposite direction, causing the armature to drive the locking element 432 to press against the traction component 500. At this point, the traction component 500 is locked in the guiding state, and subsequent wave-driven displacement can be directly transmitted to the rack 422, achieving the switching of the power generation mode. The brake spring can be selected with an appropriate elastic coefficient and preload according to the specifications of the traction component 500 and the working tension to ensure sufficient braking force, reliably maintaining the locked state in a high-humidity, high-corrosion, and high-vibration marine environment.

[0048] Furthermore, in this embodiment, Figure 5 A schematic diagram of a defibrillator assembly structure according to an embodiment of the present invention is shown, as follows: Figure 5 As shown, the power generation unit also includes a defibrillation assembly 460; the defibrillation assembly 460 is disposed on the movement path of the traction member 500 of the power generation unit, and is used to limit, buffer and stabilize the traction member 500 when subjected to rapid pulse load (instantaneous force) generated by wave excitation, thereby improving the reliability and life of the entire device.

[0049] The defibrillation assembly 460 includes a stop 461, a roller 462, an elastic member 463, and a defibrillation base 464. The roller shaft of the roller 462 is rotatably connected to the stop 461, the elastic member 463 is fixedly connected to the stop 461 and the defibrillation base 464, and the roller 462 is tactilely connected to the traction member 500. The roller 462 is provided with a roller groove, and the traction member 500 is disposed in the roller groove of a pair of rollers 462. The pair of rollers 462 clamp the traction member 500, and the state in which the pair of rollers 462 clamp the traction member 500 does not affect the normal passage of the traction member 500. The two ends of the roller shaft of the roller 462 are rotatably connected to the stop 461. The roller 462 transmits the instantaneous force of the traction member 500 to the stop 461 and the elastic member 463 in sequence. The elastic member 463 absorbs and buffers the instantaneous force, thereby stabilizing the traction member 500. The elastic member 463 is used to absorb, buffer, and attenuate the instantaneous impact force. The elastic member 463 can be a spring, a rubber damper, or other components with elastic recovery characteristics. One end is fixedly connected to the stop block 461, and the other end is fixedly connected to the defibrillator base 464. Under the action of the instantaneous impact force of the traction member 500, the elastic member 463 deforms, absorbing energy through deformation, and returns to its original shape after the instantaneous impact force disappears, thus stabilizing the traction member 500.

[0050] The self-regulating wave energy generation device of the present invention achieves automatic tidal range compensation and efficient wave energy capture through the coordinated design of the floating body, power generation unit, suspended counterweight unit, and submerged unit. The device can maintain appropriate tension of the traction component without additional mechanical adjustment, thus avoiding the problems of reduced power generation efficiency and structural fatigue caused by traction slack or overstretching.

[0051] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

[0052] The above description does not provide detailed explanations of the technical aspects of each layer's patterning and etching. However, those skilled in the art should understand that various methods existing in the prior art can be used to form layers and regions of the desired shape. Furthermore, to form the same structure, those skilled in the art can also design methods that are not entirely identical to those described above.

[0053] The present invention has been described above with reference to embodiments thereof. However, these embodiments are merely illustrative and not intended to limit the scope of the invention. The scope of the invention is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the invention, and all such substitutions and modifications should fall within the scope of the invention.

[0054] Although embodiments of the present invention have been described in detail, it should be understood that various changes, substitutions, and modifications can be made to the embodiments of the present invention without departing from the spirit and scope of the invention.

[0055] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A tidal self-regulating wave energy power plant, characterized in that, The utility model relates to a tidal power generation device, comprising: a floating body (100), a suspended counterweight unit (200), a submerged unit (300), a power generation unit (400) and a traction member (500); the power generation unit (400) is connected with the floating body (100); the power generation unit (400) is connected with the traction member (500), the traction member (500) extends from the power generation unit (400) first end and second end, the first end and second end are connected with the suspended counterweight unit (200) and submerged unit (300) respectively; the power generation unit (400) is configured to control the length of the first end and second end of the traction member (500) to change when the tidal range changes so that the power generation device reaches a balanced state; and in the balanced state, the mechanical energy of the floating body (100) moving up and down with waves is converted into electrical energy.

2. The self-regulating tidal and wave energy power plant according to claim 1, characterized in that, the sum of the gravity values of the suspended counterweight unit (200) and the power generation unit (400) is equivalent to the buoyancy value of the floating body (100).

3. The self-regulating tidal and wave energy power plant according to claim 1, characterized in that, the power generation unit (400) comprises a power generation assembly (410), a transmission assembly (420) and a locking assembly (430); the power generation assembly (410) is connected with the traction member (500) through the transmission assembly (420) and the locking assembly (430); the locking assembly (430) is used to unlock the transmission assembly (420) and the traction member (500) when the tidal range changes, and lock the transmission assembly (420) when the power generation device reaches the balanced state; the transmission assembly (420) is used to transmit the reciprocating traction movement of the traction member (500) to the power generation assembly (410) to drive the power generation assembly (410) to generate electricity.

4. The self-adjusting tidal range wave energy power plant according to claim 3, wherein, the transmission assembly (420) comprises a gear (421) and a rack (422); the gear (421) and the rack (422) are engaged, the gear (421) is connected with the input shaft of the power generation assembly (410), and the rack (422) is connected with the locking assembly (430); when the locking assembly (430) is locked with the traction member (500), the rack (422) moves reciprocally under the driving of the traction member (500), drives the gear (421) to rotate, and drives the power generation assembly (410) to generate electricity; when the locking assembly (430) is unlocked with the traction member (500), the rack (422) stops moving, and the power generation assembly (410) stops generating electricity.

5. The self-regulating tidal and wave energy power plant according to claim 3, characterized in that, the locking assembly (430) comprises a controller (431) and a locking member (432), and the controller (431) is electrically connected with the locking member (432); the controller (431) is used to collect tidal range change information, drive the locking member (432) to be unlocked with the traction member (500) according to the tidal range change information, and drive the locking member (432) to press the traction member (500) when the power generation device reaches the balanced state.

6. The self-regulating tidal and wave energy power plant according to claim 4, characterized in that, The power generation unit (400) further comprises a guide member (440) and a limiting member (450), the guide direction of the guide member (440) is the same as the movement direction of the rack (422), the rack (422) is arranged in the guide groove of the guide member (440); The limiting member (450) is arranged at the end of the guide member (440), and is used for limiting the maximum stroke of the rack (422) in the guide groove.

7. The self-regulating tidal and wave energy power plant according to claim 1, characterized in that, The power generation unit (400) further comprises a defibrillation assembly (460); The defibrillation assembly (460) comprises a stop block (461), a roller (462), an elastic member (463) and a defibrillation base (464); The roller shaft of the roller (462) is rotationally connected with the stop block (461), the elastic member (463) is fixedly connected with the stop block (461) and the defibrillation base (464), and the roller (462) is rollingly connected with the traction member (500); The roller (462) sequentially transmits the instantaneous impact force of the traction member (500) to the stop block (461) and the elastic member (463), the elastic member (463) absorbs and buffers the instantaneous impact force, and the traction member (500) is stabilized.

8. The self-regulating tidal and wave energy power plant according to claim 1, characterized in that, The power generation unit (400) further comprises a shell (470), the shell (470) is provided with a guide wheel (471), the guide wheel (471) is rotationally connected with the shell (470), and the traction member (500) is rollingly connected with the guide wheel (471); The shell (470) comprises a first through hole (472) and a second through hole (473), the traction member (500) is sequentially arranged in the first through hole (472), the guide wheel (471) and the second through hole (473), and the traction member (500) is directionally supported and steeringly guided through the guide wheel (471).

9. The self-regulating tidal and wave energy power plant according to claim 8, characterized in that, The shell (470) further comprises a protective cover (474), the protective cover (474) is arranged outside the shell (470), and the protective cover (474) is arranged at the first through hole (472) and the second through hole (473).

10. The self-regulating tidal and wave energy power plant according to claim 9, characterized in that, The protective cover (474) is arranged in a horn structure, and the end face with a smaller diameter of the horn structure is connected with the shell (470).

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