Lantern-shaped wave power generation device

Abstract

The present invention discloses a lantern-shaped wave power generation device, comprising a buoy, a counterweight, and multiple power generation units. The power generation units include a first generator, a second generator, a translation mechanism, and a crankshaft-connecting rod mechanism. One end of the translation mechanism is slidably connected to the counterweight, and the input end of the first generator cooperates with the translation mechanism. The other end of the translation mechanism is connected to the connecting rod portion of the crankshaft-connecting rod mechanism, and the crankshaft portion of the crankshaft-connecting rod mechanism cooperates with the input shaft of the second generator. By arranging the counterweight inside the buoy, when the buoy is subjected to the force of waves and moves, the internal counterweight will continue to move accordingly. The extrusion force generated by the movement of the counterweight acts on the translation mechanism and the crankshaft-connecting rod mechanism inside the buoy, thereby converting wave energy into mechanical energy, realizing wave energy power generation. The device can be used in conjunction with buoys, offshore towers, and other devices to power offshore equipment. By arranging the translation mechanism and the crankshaft-connecting rod mechanism, the utilization of wave motions of different amplitudes and frequencies is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation devices, and in particular to a lantern-shaped wave power generation device. Background Art

[0002] Wave energy is generated primarily by the constant action of sea breezes on the sea surface. Wind energy is transferred to the seawater, causing it to produce periodic undulating motions, which in turn generate wave energy. This form of energy has many significant characteristics. First, wave energy is extremely widespread. Wherever there is an ocean, there are traces of wave energy. This is particularly true in coastal areas, where wave energy resources are abundant and relatively concentrated, providing a good geographical foundation for its large-scale development and utilization. Second, wave energy is a clean energy source. Its generation and utilization process produces almost no greenhouse gas emissions or other pollutants. Its environmental friendliness makes it an ideal energy option for addressing global climate change and environmental pollution. Furthermore, wave energy has a high energy density. Compared with some other renewable energy sources, such as solar and wind power, wave energy can provide more substantial power output within the same footprint or volume, which means there is significant room for improvement in its power generation efficiency.

[0003] Wave energy power generation devices have emerged to harness wave energy. Current wave energy generation technologies primarily include oscillating water column, pendulum, and point absorption. The oscillating water column uses waves to cause the water column in the chamber to oscillate up and down, compressing and extracting air to drive an air turbine for power generation. The pendulum utilizes the oscillation of waves to propel a pendulum, which then drives a generator through a transmission mechanism. The point absorption utilizes the up and down movement of a floating body under the action of waves to convert mechanical energy into electrical energy. However, these technologies all present varying degrees of challenges in practical application, such as insufficient energy conversion efficiency, poor equipment stability, significant susceptibility to the marine environment, and high construction and maintenance costs. Harsh marine weather conditions, such as strong winds, huge waves, corrosion, and marine biofouling, can severely damage power generation devices, significantly shortening their service life and increasing operational risks and costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a lantern-shaped wave power generation device to solve one or more technical problems existing in the above-mentioned background technology.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A lantern-shaped wave power generation device comprises a buoy, a counterweight, and a plurality of power generation units, wherein the counterweight is disposed in the middle of the buoy, and the plurality of power generation units are distributed on the outside and bottom of the counterweight. The power generation units comprise a first generator, a second generator, a translation mechanism, and a crankshaft-connecting rod mechanism, wherein the first generator is fixed on the outside of the counterweight, and the second generator is fixed on the inside of the buoy. One end of the translation mechanism is slidably connected to the counterweight, the input end of the first generator cooperates with the translation mechanism, the other end of the translation mechanism is connected to the connecting rod portion of the crankshaft-connecting rod mechanism, and the crankshaft portion of the crankshaft-connecting rod mechanism cooperates with the input shaft of the second generator.

[0007] When the counterweight slides relative to the translation mechanism, the translation mechanism converts the reciprocating motion of the counterweight into a rotational motion of the input end of the first generator;

[0008] When the counterweight slides to a limit position relative to the translation mechanism, the counterweight pushes the translation mechanism to move as a whole, and the crankshaft-connecting rod mechanism converts the reciprocating linear motion of the translation mechanism into the rotational motion of the second generator input shaft.

[0009] Preferably, the translation mechanism includes a fixed housing, a first universal joint, a rack, a speed-increasing assembly and a first input gear. The fixed housing is connected to the counterweight block through the first universal joint. The speed-increasing assembly and the first generator are arranged in the fixed housing. One end of the rack extends into the fixed housing and engages with the input end of the speed-increasing assembly. The first input gear is arranged at the input end of the first generator, and the output end of the speed-increasing assembly engages with the first input gear.

[0010] Preferably, the translation mechanism further includes a slide rod, which is provided at one end of the rack, and limiting slide grooves are provided on both inner sides of the fixed box body, and the slide rod is slidably engaged with the slide grooves.

[0011] Preferably, the speed increasing assembly includes a first speed increasing gear, a second speed increasing gear and a third speed increasing gear, the first speed increasing gear, the second speed increasing gear and the third speed increasing gear are all rotatably arranged in the fixed housing, the first speed increasing gear is meshed with the rack, the first speed increasing gear and the second speed increasing gear are coaxially arranged, the second speed increasing gear is meshed with the third speed increasing gear, the third speed increasing gear is meshed with the first input gear, the diameter of the first speed increasing gear is smaller than the diameter of the third speed increasing gear, the diameter of the third speed increasing gear is smaller than the diameter of the first input gear, and the diameter of the first input gear is smaller than the diameter of the second speed increasing gear.

[0012] Preferably, the crankshaft-connecting rod mechanism includes a connecting rod portion, a crankshaft portion, a fourth speed-increasing gear and a second input gear, one end of the connecting rod portion is connected to the other end of the rack, and the other end of the connecting rod portion is hinged to the crank arm of the crankshaft portion, the fourth speed-increasing gear is arranged on the crankshaft portion, the second input gear is arranged at the input end of the second generator, and the fourth speed-increasing gear is meshed with the second input gear.

[0013] Preferably, the crankshaft-connecting rod mechanism includes a fixed housing and a second universal shaft, the second generator is installed in the fixed housing, and the fixed housing is connected to the side wall of the buoy through the universal shaft.

[0014] Preferably, two of the second generator, the fourth speed-increasing gear and the second input gear are provided, the two second generators are arranged on the left and right sides of the fixed housing, the crankshaft is located between the two second generators, and the two fourth speed-increasing gears are respectively provided at the two ends of the crankshaft.

[0015] Preferably, the power generation unit further includes a first LED lamp bead and a second LED lamp bead, the first LED lamp bead is connected in series to the output end of the first generator, and the second LED lamp bead is connected in series to the output end of the second generator.

[0016] Preferably, it further includes a battery, which is arranged in the counterweight block and is electrically connected to the output ends of the first generator and the second generator.

[0017] Preferably, the buoy is a sealed cylinder structure.

[0018] The beneficial effects of the present invention are as follows: by arranging a counterweight inside the buoy, when the buoy moves under the action of the wave force, the internal counterweight will continue to move, and the extrusion force generated by the movement of the counterweight acts on the translation mechanism and the crankshaft connecting rod mechanism inside the buoy, thereby converting wave energy into mechanical energy, realizing wave energy power generation, and can be used to power offshore equipment in conjunction with buoys, offshore towers, etc. By arranging the translation mechanism and the crankshaft connecting rod mechanism, the utilization of wave motions with different amplitudes and frequencies is realized; when encountering low-amplitude, short-wave-frequency waves, the relatively small sliding of the counterweight triggers the movement of the translation mechanism, at which time the power generation of the first generator is mainly based; and when encountering high-amplitude, long-wave-frequency waves, the relatively large sliding of the counterweight triggers the movement of the crankshaft connecting rod mechanism, realizing the simultaneous power generation of the first and second generators, thereby effectively covering the dynamic fluctuation range of wave energy and significantly improving the energy capture efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings further illustrate the present invention, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0020] Figure 1 It is a schematic diagram of the internal structure of one embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of a power generation unit according to one embodiment of the present invention;

[0022] Figure 3 It is a structural schematic diagram of a translation mechanism according to one embodiment of the present invention.

[0023] Among them: buoy 1, counterweight 2, power generation unit 3, first generator 31, second generator 32, translation mechanism 33, crankshaft connecting rod mechanism 34, fixed box 331, first cardan shaft 332, rack 333, first input gear 312, slide bar 334, limiting slide groove 335, first speed-increasing gear 336, second speed-increasing gear 337, third speed-increasing gear 338, connecting rod part 341, crankshaft part 342, fourth speed-increasing gear 343, second input gear 321, fixed housing 344, second cardan shaft 345, first LED lamp bead 339, second LED lamp bead 346. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0025] A lantern-shaped wave power generation device of this embodiment is shown in FIG. Figure 1 , including a buoy 1, a counterweight 2 and a plurality of power generation units 3, the counterweight 2 is provided in the middle of the buoy 1, and the plurality of power generation units 3 are distributed on the outside and bottom of the counterweight 2, the power generation unit 3 includes a first generator 31, a second generator 32, a translation mechanism 33 and a crankshaft connecting rod mechanism 34, the first generator 31 is fixed on the outside of the counterweight 2, the second generator 32 is fixed on the inside of the buoy 1, one end of the translation mechanism 33 is slidably connected to the counterweight 2, the input end of the first generator 31 cooperates with the translation mechanism 33, the other end of the translation mechanism 33 is connected to the connecting rod portion 341 of the crankshaft connecting rod mechanism 34, and the crankshaft portion 342 of the crankshaft connecting rod mechanism 34 cooperates with the input shaft of the second generator 32;

[0026] When the counterweight 2 slides relative to the translation mechanism 33, the translation mechanism 33 converts the reciprocating motion of the counterweight 2 into a rotational motion at the input end of the first generator 31;

[0027] When the counterweight 2 slides to the limit position relative to the translation mechanism 33 , the counterweight 2 pushes the translation mechanism 33 to move as a whole, and the crankshaft connecting rod mechanism 34 converts the reciprocating linear motion of the translation mechanism 33 into the rotational motion of the input shaft of the second generator 32 .

[0028] By setting a counterweight block 2 inside the buoy 1, when the buoy 1 moves due to the force of waves, the internal counterweight block 2 will continue to move accordingly, and the extrusion force generated by the movement of the counterweight block 2 acts on the translation mechanism 33 and the crankshaft connecting rod mechanism 34 inside the buoy 1, thereby converting wave energy into mechanical energy and realizing wave energy power generation. By setting up a translation mechanism 33 and a crankshaft connecting rod mechanism 34, the utilization of wave motions of different amplitudes and frequencies is achieved; when encountering waves with low amplitude and short frequency, the relatively small sliding of the counterweight block 2 triggers the action of the translation mechanism 33, so that the translation mechanism 33 converts the reciprocating motion of the counterweight block 2 into a rotational motion of the input end of the first generator 31, and at this time, the power generation of the first generator 31 is mainly based on the power generation of the first generator 31; and when encountering waves with high amplitude and long frequency, the counterweight block 2 will slide significantly. When the counterweight block 2 slides to the limit position relative to the translation mechanism 33, the continued sliding of the counterweight block 2 will push the translation mechanism 33 to move as a whole, triggering the crankshaft connecting rod mechanism 34 to convert the reciprocating linear motion of the translation mechanism 33 into a rotational motion of the input shaft of the second generator 32, thereby realizing simultaneous power generation of the first generator 31 and the second generator 32, thereby effectively covering the dynamic fluctuation range of wave energy and significantly improving the energy capture efficiency.

[0029] The number and installation locations of the power generation units 3 can be increased or decreased according to sea areas with different wave frequencies and heights, so as to improve power generation efficiency according to local conditions.

[0030] Preferably, refer to the attached Figure 2 and 3 The translation mechanism 33 includes a fixed housing 331, a first cardan shaft 332, a rack 333, a speed-increasing assembly and a first input gear 312. The fixed housing 331 is connected to the counterweight 2 through the first cardan shaft 332. The speed-increasing assembly and the first generator 31 are arranged in the fixed housing 331. One end of the rack 333 extends into the fixed housing 331 and engages with the input end of the speed-increasing assembly. The first input gear 312 is arranged at the input end of the first generator 31, and the output end of the speed-increasing assembly engages with the first input gear 312.

[0031] The counterweight 2 is connected to the fixed housing 331 via a first universal joint 332, fully releasing its degrees of freedom so that the speed-increasing assembly and the rack 333 can maintain effective meshing and transmission under the multi-directional forces of waves, thereby improving the reliability of the device's movement in complex sea conditions. By setting up the rack 333 and the speed-increasing assembly, when the buoy 1 encounters low-amplitude, short-frequency waves, causing the counterweight 2 to slide slightly relative to the rack 333, the rack 333 engages and transmits through the speed-increasing assembly, thereby converting the sliding of the counterweight 2 into rotational motion at the input end of the first generator 31, thereby driving the first generator 31 to generate electricity and broadening the range of operating conditions that can be adapted to wave energy capture.

[0032] Preferably, the translation mechanism 33 further includes a slide bar 334, which is disposed at one end of the rack 333. Limiting grooves 335 are provided on both inner sides of the fixed housing 331, and the slide bar 334 slidably engages with the limiting grooves 335. By slidably engaging the slide bar 334 disposed on the rack 333 and the limiting grooves 335 within the fixed housing 331, the counterweight 2 and the translation mechanism 33 can slide relative to each other within a certain range. When the slide bar 334 slides to the end of the limiting groove 335, the counterweight 2 drives the rack 333 to continue sliding. At this time, the rack 333 can be regarded as a fixed rod, thereby triggering the action of the crankshaft connecting rod mechanism 34.

[0033] Preferably, the speed-increasing assembly includes a first speed-increasing gear 336, a second speed-increasing gear 337, and a third speed-increasing gear 338. The first speed-increasing gear 336, the second speed-increasing gear 337, and the third speed-increasing gear 338 are all rotatably disposed within the fixed housing 331. The first speed-increasing gear 336 meshes with the rack 333, the first speed-increasing gear 336 and the second speed-increasing gear 337 are coaxially disposed, the second speed-increasing gear 337 meshes with the third speed-increasing gear 338, and the third speed-increasing gear 338 meshes with the first input gear 312. The diameter of the first speed-increasing gear 336 is smaller than the diameter of the third speed-increasing gear 338, the diameter of the third speed-increasing gear 338 is smaller than the diameter of the first input gear 312, and the diameter of the first input gear 312 is smaller than the diameter of the second speed-increasing gear 337. Thus, by providing the first speed-increasing gear 336, the second speed-increasing gear 337, and the third speed-increasing gear 338, not only is the motion meshing with the rack 333 converted into rotational motion input to the input end of the first generator 31, but it also serves to increase the speed, thereby improving the utilization rate of wave energy.

[0034] Preferably, the crankshaft-connecting rod mechanism 34 includes a connecting rod portion 341, a crankshaft portion 342, a fourth speed-increasing gear 343 and a second input gear 321, one end of the connecting rod portion 341 is connected to the other end of the rack 333, and the other end of the connecting rod portion 341 is hinged to the crank arm of the crankshaft portion 342, the fourth speed-increasing gear 343 is arranged on the crankshaft portion 342, the second input gear 321 is arranged at the input end of the second generator 32, and the fourth speed-increasing gear 343 is meshed with the second input gear 321.

[0035] By connecting the connecting rod part 341 to the rack 333 and hingedly connecting it to the crankshaft part 342, when the buoy 1 is subjected to waves with high amplitude and strong wave frequency, the counterweight block 2 slides to the limit position and continues to push the rack 333, so that the crankshaft part 342 moves to a position of half a rotation under the engagement of the fourth speed-increasing gear 343 and the second input gear 321. After changing direction, the crankshaft rod and the rack 333 change direction at the same time, so that the crankshaft part 342 can make a complete rotation. In this process, the reciprocating linear motion of the translation mechanism 33 is converted into the rotational motion of the input shaft of the second generator 32 through the engagement and rotation with the fourth speed-increasing gear 343.

[0036] Preferably, the crankshaft-connecting rod mechanism 34 includes a fixed housing 344 and a second universal joint 345. The second generator 32 is mounted within the fixed housing 344, which is connected to the sidewall of the buoy 1 via the second universal joint 345. Similarly, the connection between the buoy 1 and the fixed housing 344 via the second universal joint 345 fully releases degrees of freedom, allowing the fourth speed-increasing gear 343 and the second input gear 321 to maintain effective meshing transmission under the multi-directional forces of waves, thereby improving the reliability of the device's movement in complex sea conditions.

[0037] Preferably, there are two second generators 32, four speed-increasing gears 343 and two second input gears 321, the two second generators 32 are arranged on the left and right sides of the fixed housing 344, the crankshaft part 342 is located between the two second generators 32, and the two fourth speed-increasing gears 343 are respectively arranged at the two ends of the crankshaft part 342.

[0038] By setting up two second generators 32, not only can power superposition be achieved through the synchronous operation of the two second generators 32, but the risk of single-machine overload is also avoided under extreme working conditions, ensuring continuous and stable power generation of the device under various sea conditions.

[0039] Preferably, the power generation unit 3 further includes a first LED lamp bead 339 and a second LED lamp bead 346. The first LED lamp bead 339 is connected in series to the output end of the first generator 31, and the second LED lamp bead 346 is connected in series to the output end of the second generator 32. By arranging the first LED lamp bead 339 and the second LED lamp bead 346 in series with the first generator 31 and the second generator 32, respectively, when the first generator 31 and the second generator 32 are operating normally, the first LED lamp bead 339 and the second LED lamp bead 346 are continuously illuminated. Therefore, when a fault occurs, the fault position can be quickly located by the status of the first LED lamp bead 339 and the second LED lamp bead 346, and the operating status of the power generation unit 3 can be quickly determined without disconnecting the circuit, thereby realizing non-contact detection.

[0040] Preferably, a battery is also included. The battery is installed in the counterweight 2 and is electrically connected to the output terminals of the first generator 31 and the second generator 32. By embedding the battery in the counterweight 2, the electric energy converted by the power generation unit 3 can be transmitted to the battery in a timely manner. After adjusting the voltage, it can be used directly, and can be used in conjunction with buoys, offshore towers, and other offshore equipment to power supply.

[0041] Preferably, the buoy 1 is a sealed cylindrical structure. The use of a sealed cylindrical structure ensures sealing, isolates the contact between seawater and the power generation unit 3, extends the life of the power generation unit 3, and protects the power generation unit 3 from the influence of marine nearshore garbage and the complex and changing marine environment.

[0042] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A lantern-shaped wave power generation device, characterized in that: It includes a buoy, a counterweight and multiple power generation units, the counterweight is arranged in the middle of the buoy, and the multiple power generation units are distributed on the outside and bottom of the counterweight. The power generation unit includes a first generator, a second generator, a translation mechanism and a crankshaft connecting rod mechanism. The first generator is fixed on the outside of the counterweight, and the second generator is fixed on the inside of the buoy. One end of the translation mechanism is connected to the counterweight, the input end of the first generator cooperates with the translation mechanism, and the other end of the translation mechanism is connected to the connecting rod part of the crankshaft connecting rod mechanism. The crankshaft part of the crankshaft connecting rod mechanism cooperates with the input shaft of the second generator. When the counterweight slides relative to the rack of the translation mechanism, the translation mechanism converts the reciprocating motion of the counterweight into a rotational motion of the input end of the first generator; When the counterweight slides relative to the rack of the translation mechanism to a limit position, the counterweight pushes the translation mechanism to move as a whole, and the crankshaft-connecting rod mechanism converts the reciprocating linear motion of the translation mechanism into the rotational motion of the second generator input shaft; The translation mechanism includes a fixed housing, a first cardan shaft, a rack, a speed-increasing assembly, and a first input gear. The fixed housing is connected to the counterweight via the first cardan shaft. The speed-increasing assembly and the first generator are disposed in the fixed housing. One end of the rack extends into the fixed housing and meshes with the input end of the speed-increasing assembly. The first input gear is disposed at the input end of the first generator. The output end of the speed-increasing assembly meshes with the first input gear. The translation mechanism further includes a slide rod, which is arranged at one end of the rack, and two inner sides of the fixed box are provided with limited sliding grooves, and the slide rod is slidably engaged with the sliding grooves; The crankshaft-connecting rod mechanism includes a connecting rod portion, a crankshaft portion, a fourth speed-increasing gear and a second input gear. One end of the connecting rod portion is connected to the other end of the rack, and the other end of the connecting rod portion is hinged to the crank arm of the crankshaft portion. The fourth speed-increasing gear is arranged on the crankshaft portion, and the second input gear is arranged at the input end of the second generator. The fourth speed-increasing gear is meshed with the second input gear.

2. A lantern-shaped wave power generation device according to claim 1, characterized in that: The speed-increasing assembly includes a first speed-increasing gear, a second speed-increasing gear and a third speed-increasing gear. The first speed-increasing gear, the second speed-increasing gear and the third speed-increasing gear are all rotatably arranged in the fixed housing. The first speed-increasing gear is meshed with the rack. The first speed-increasing gear and the second speed-increasing gear are coaxially arranged. The second speed-increasing gear is meshed with the third speed-increasing gear. The third speed-increasing gear is meshed with the first input gear. The diameter of the first speed-increasing gear is smaller than the diameter of the third speed-increasing gear. The diameter of the third speed-increasing gear is smaller than the diameter of the first input gear. The diameter of the first input gear is smaller than the diameter of the second speed-increasing gear.

3. The lantern-shaped wave power generation device according to claim 1, characterized in that: The crankshaft-connecting rod mechanism includes a fixed housing and a second universal shaft. The second generator is installed in the fixed housing. The fixed housing is connected to the side wall of the buoy through the second universal shaft.

4. The lantern-shaped wave power generation device according to claim 3, characterized in that: There are two of each of the second generator, the fourth speed-increasing gear and the second input gear. The two second generators are arranged on the left and right sides of the fixed housing. The crankshaft is located between the two second generators. The two fourth speed-increasing gears are respectively arranged at the two ends of the crankshaft.

5. The lantern-shaped wave power generation device according to claim 1, characterized in that: The power generation unit further includes a first LED lamp bead and a second LED lamp bead, wherein the first LED lamp bead is connected in series to the output end of the first generator, and the second LED lamp bead is connected in series to the output end of the second generator.

6. The lantern-shaped wave power generation device according to claim 1, characterized in that: It also includes a battery, which is arranged in the counterweight block and is electrically connected to the output ends of the first generator and the second generator.

7. The lantern-shaped wave power generation device according to claim 1, characterized in that: The buoy is a sealed cylinder structure.

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