CN112628059B - Wave energy collection device - Google Patents

Abstract

The invention discloses a wave energy collecting device, which is a power generation unit network formed by connecting a plurality of power generation units, wherein each power generation unit is positioned in an enclosure with a sealed space inside, adjacent enclosures are connected through flexible connecting pieces, and each enclosure generates oscillation under wave excitation force and acting force of the adjacent enclosures; the power generation unit comprises a vibration assembly, a transmission assembly and a permanent magnet power generation assembly, wherein the vibration assembly comprises an elastic element, the elastic element is mounted on the wall of the enclosure, and the elastic element moves along with the oscillation of the enclosure; the permanent magnet power generation assembly comprises a permanent magnet and an induction coil, and the elastic element drives the permanent magnet to rotate through conversion of the transmission assembly to cut a magnetic induction wire. The wave energy collecting device collects mechanical energy of the wave and tide action on the sea, adapts to different all-weather ocean environments, and solves the defects of low electromechanical conversion efficiency and low utilization rate of wave energy in the existing wave energy collecting device.

Description

Wave Energy Harvesting Device

technical field

The invention relates to the technical field of wave energy collection structures in marine environments, in particular to a wave energy collection device.

Background technique

Ocean energy is an inexhaustible, non-polluting, renewable energy, and one of the most abundant, clean, and renewable energy sources on earth. The wave energy in marine energy has the incomparable advantages of other energy sources, and its dependence on season, day and night, weather and temperature conditions is greatly reduced. Therefore, rational development and utilization of wave energy has great strategic significance.

Wave energy power generation devices can be divided into oscillating water column, pendulum plate, oscillating buoy, floating body angle type, shrinking channel type, etc. in principle. According to different foundation platforms, they can be divided into: shore type, shallow water pile foundation type, floating type, Submersible. The current various wave energy power generation systems have the following problems: high cost, poor survivability, poor ability to adapt to different waves, poor corrosion resistance, low wave height utilization, low conversion efficiency, unstable output power, and failure rate. High, high maintenance costs.

The marine climate environment is changeable, and the wave excitation method is complex. At present, most of the small-scale marine environment wave energy harvesting devices have low output power, low reliability, and poor environmental adaptability.

Contents of the invention

The technical problem to be solved by the present invention lies in: Aiming at the technical problems existing in the prior art, the present invention provides a wave energy collection device, which collects the mechanical energy of sea waves and tidal currents, and the collection device can adapt to different marine environments around the clock , which solves the shortcomings of low electromechanical conversion efficiency of wave energy harvesting and low utilization rate of wave energy.

In order to solve the problems of the technologies described above, the technical solution proposed by the present invention is:

A wave energy collection device, the collection device is a network of power generation units connected by a plurality of power generation units, each of the power generation units is located in an enclosure with a sealed space inside, and the adjacent enclosures pass through a flexible connected by connectors, each of the enclosures oscillates under the wave excitation force and the force of adjacent enclosures; the power generation unit includes a vibration assembly, a transmission assembly and a permanent magnet power generation assembly, and the vibration assembly includes an elastic element, The elastic element is installed on the wall of the enclosure, and the elastic element moves with the oscillation of the enclosure; the permanent magnet generator assembly includes a permanent magnet and an induction coil, and the elastic element drives the permanent magnet to rotate and cut the magnet through the conversion of the transmission assembly. sense line.

As a further improvement of the above technical solution:

Preferably, the transmission assembly includes a first transmission member, a gear transmission group and a ratchet transmission group, the first transmission member is fixedly connected to the elastic element, the first transmission member moves synchronously with the elastic element, and the first transmission The parts drive the ratchet transmission group to rotate through the conversion of the gear transmission group.

Preferably, the first transmission member is a rack, and the power generation unit further includes a guide rod, the rack is provided with a chute, the guide rod passes through the chute and is fixed to the enclosure wall, and the guide rod slides Set in the chute of the rack.

Preferably, there are two elastic elements, and the two elastic elements are installed on the top wall and the bottom plate of the enclosure respectively, one end of the elastic element is fixed to the enclosure, and the other end is fixedly connected to one end of the rack.

The gear transmission set includes a first gear and a second gear, the first gear meshes with a rack, the first gear and the second gear form a gear pair, and the second gear drives the ratchet transmission set through a rotating shaft.

Preferably, the ratchet transmission set includes a ratchet plate, a rotating plate and a ratchet, the rotating plate is fixedly connected to the second gear, the ratchet is mounted on the rotating plate, and the ratchet plate is driven to rotate by the ratchet.

Preferably, the permanent magnet power generation assembly further includes a coil mounting plate, the coil mounting plate is fixedly installed in the enclosure, there are multiple induction coils, and the induction coils are distributed along the disk array of the coil mounting plate, All said induction coils are connected in series.

Preferably, there are multiple permanent magnets, and the permanent magnets are distributed along the disk array of the ratchet disk.

Preferably, the induction coil is arranged correspondingly to the permanent magnet, and the magnetic poles of the permanent magnet are staggeredly installed on the ratchet disc.

Preferably, the coil mounting plate is provided with a plurality of circular slots, and the induction coil is provided in the circular slots; the ratchet disc is provided with a plurality of circular slots, and the permanent magnet is provided in the circular slots.

Preferably, the two sides of the second gear are respectively provided with a permanent magnet generator assembly and a ratchet transmission group.

Preferably, there are at least two second gears, which mesh with the first gears respectively.

Preferably, at least two groups of the gear transmission group, the ratchet transmission group and the permanent magnet generator assembly are arranged symmetrically on both sides of the first transmission member.

Preferably, the connectors are ropes, and all the enclosures are distributed in a radial structure, or in a honeycomb manner, or in a tree-like manner, or in a matrix-like manner through the ropes.

Compared with the prior art, the wave energy collection device provided by the present invention has the following advantages:

In the wave energy harvesting device of the present invention, whether the sea level generates waves or returns to calmness, the elastic element can generate deformation, which can be transmitted to the movement of the mechanical structure to generate electric energy and improve the electromechanical conversion efficiency.

The wave energy collection device of the present invention collects mechanical energy from sea waves and tidal currents. The collection device can adapt to different marine environments around the clock, and solves the shortcomings of low electromechanical conversion efficiency and low utilization rate of wave energy in current wave energy collection.

In the wave energy collection device of the present invention, the permanent magnets adopt a circular array, and the strongest magnetic field can be generated with the least amount of magnets, which is beneficial to electromagnetic induction power generation.

Description of drawings

Fig. 1 is a schematic diagram of the system application of the wave energy harvesting device of the present invention;

Fig. 2 is the structural representation of the power generation unit of the present invention;

Fig. 3 is an exploded view of the partial structure of the power generation unit of the present invention.

Explanation of symbols in the figure:

1. Cover; 2. Elastic element; 3. Rack; 4. Mounting seat; 5. Guide rod; 6. Mounting shaft; 7. Coil mounting plate; 8. Rope; 9. Induction coil; 10. First gear ; 11, the second gear; 12, the ratchet; 13, the ratchet disc; 14, the permanent magnet; 15, the rotating shaft.

Detailed ways

Specific embodiments of the present invention will be described in detail below. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.

Fig. 1 to Fig. 3 have shown a kind of embodiment of the wave energy collection device of the present invention, and the collection device is the power generation unit network that is formed by the connection of a plurality of power generation units, and each power generation unit is located in an enclosure 1 that is provided with a sealed space inside. , adjacent enclosures 1 are connected by flexible connectors, and each enclosure 1 oscillates under the wave excitation force and the force of adjacent enclosures 1 . The connecting part is a rope 8, and all the enclosures 1 are distributed in a radial structure through the rope 8, or distributed in a honeycomb manner, or distributed in a tree manner, or distributed in a matrix manner.

In this embodiment, the power generation unit includes a vibration assembly, a transmission assembly and a permanent magnet power generation assembly. The vibration assembly includes an elastic element 2 installed on the wall of the enclosure 1, and the elastic element 2 moves with the oscillation of the enclosure 1. The permanent magnet power generation assembly includes a permanent magnet 14 and an induction coil 9, and the elastic element 2 drives the permanent magnet 14 to rotate and cut the magnetic induction line through the conversion of the transmission assembly. The elastic unit generally adopts a spring.

In this embodiment, the transmission assembly includes a first transmission member, a gear transmission group and a ratchet transmission group, the first transmission member is fixedly connected to the elastic element 2, the first transmission member and the elastic element 2 move synchronously, and the first transmission member is driven by a gear The conversion of the group drives the rotation of the ratchet transmission group.

In this embodiment, the first transmission member is a rack 3, and the power generation unit also includes a guide rod 5, the rack 3 is provided with a chute, the guide rod 5 passes through the chute and is fixed on the wall of the enclosure 1, and the guide rod 5 is slidably arranged on the Inside the chute of rack 3. The guide rod 5 can ensure the single-degree-of-freedom movement of the rack 3 .

In this embodiment, there are two elastic elements 2, and the two elastic elements 2 are installed on the top wall and the bottom plate of the enclosure 1 respectively, one end of the elastic element 2 is fixed on the enclosure 1, and the other end is fixedly connected to one end of the rack 3 .

In this embodiment, the gear transmission group includes a first gear 10 and a second gear 11, the first gear 10 meshes with the rack 3, the first gear 10 is installed in the enclosure 1 through the installation shaft 6, and the installation shaft 6 and the first gear Bearings are arranged between the gears 10 . The first gear 10 and the second gear 11 form a gear pair, and the second gear 11 drives the ratchet transmission group through a rotating shaft 15 .

In this embodiment, the ratchet transmission group includes a ratchet disc 13, a rotating disc and a ratchet 12, the rotating disc is fixedly connected to the second gear 11, the ratchet 12 is installed on the rotating disc, and the front of the ratchet disc 13 has a ratchet groove and ratchets 12 are matched, and the ratchet 12 is driven to rotate. There are 6 circular grooves in the array on the reverse side of the ratchet disk 13 , and permanent magnets 14 are arranged in each circular groove, and the magnetic poles of the permanent magnets 14 are installed on the ratchet disk 13 in a staggered manner.

In this embodiment, the permanent magnet generator assembly further includes a coil mounting plate 7 , and the coil mounting plate 7 is fixedly mounted on the side wall of the enclosure 1 through the mounting seat 4 . The coil mounting plate 7 is provided with 6 circular slots, and an induction coil 9 is arranged in each circular slot; the induction coils 9 are distributed along the disk array of the coil mounting plate 7, and all the induction coils 9 are connected in series. The induction coil 9 is arranged corresponding to the permanent magnet 14 .

In this embodiment, the two sides of the second gear 11 are respectively provided with a permanent magnet generator assembly and a ratchet transmission group.

In this embodiment, each generating unit is provided with two first gears 10, and each first gear 10 respectively drives two second gears 11, and each second gear 11 is provided with a permanent magnet power generation assembly twice.

In the wave energy harvesting device of the present invention, in the initial state, the elastic element 2 is not deformed. When sea waves are generated, due to the surge excitation of the sea waves, the elastic element 2 is elastically deformed, driving the rack 3 to reciprocate, and the ratchet disc 13 driven by the gear rotation of the gear transmission group rotates and cuts the magnetic induction line, and the mechanical energy converted into electricity.

When the sea surface is calm, the elastic element 2 returns to its original state without deformation. The wave surges in any direction, and the reciprocating motion in this way will generate mechanical energy in both the deformation and recovery stages, and finally convert it into electrical energy through the permanent magnet power generation component.

The above embodiments are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims (7)

1. A wave energy collection device, characterized in that the collection device is connected to a power generation unit network formed by a plurality of power generation units, each of the power generation units is located in an enclosure with a sealed space inside, and adjacent The enclosures are connected through flexible connectors, and each enclosure oscillates under the wave excitation force and the force of adjacent enclosures; the power generation unit includes a vibration assembly, a transmission assembly and a permanent magnet power generation assembly. The vibration assembly includes elastic elements, which are installed on the wall of the enclosure, and the elastic elements move with the oscillation of the enclosure; the permanent magnet power generation assembly includes permanent magnets and induction coils, and the elastic elements are converted by the transmission assembly Drive the permanent magnet to rotate and cut the magnetic induction line; the transmission assembly includes a first transmission member, a gear transmission group and a ratchet transmission group, the first transmission member is fixedly connected with the elastic element, and the first transmission member and the elastic element move synchronously , the first transmission part drives the ratchet transmission group to rotate through the conversion of the gear transmission group; the connecting part is a rope, and all the enclosures are distributed in a radial structure through the rope, or distributed in a honeycomb manner, or in a tree-like manner distribution, or in a matrix-like distribution; The first transmission member is a rack, and the power generation unit also includes a guide rod, the rack is provided with a chute, the guide rod passes through the chute and is fixed to the wall of the enclosure, and the guide rod is slid on the tooth in the chute of the bar; There are two elastic elements, and the two elastic elements are respectively installed on the top wall and the bottom plate of the enclosure, one end of the elastic element is fixed to the enclosure, and the other end is fixedly connected to one end of the rack; The gear transmission group includes a first gear and a second gear, the first gear meshes with a rack, the first gear and the second gear form a gear pair, and the second gear drives the ratchet transmission group through a rotating shaft; The ratchet transmission group includes a ratchet disk, a rotating disk and a ratchet, the rotating disk is fixedly connected to the second gear, the ratchet is mounted on the rotating disk, and the ratchet disk is driven to rotate by the ratchet; The permanent magnet power generation assembly also includes a coil mounting plate, the coil mounting plate is fixedly installed in the enclosure, there are multiple induction coils, and the induction coils are distributed along the disk array of the coil mounting plate, all of the The induction coils are connected in series. 2. The wave energy harvesting device according to claim 1, characterized in that there are multiple permanent magnets, and the permanent magnets are distributed along the disc array of the ratchet disc. 3 . The wave energy harvesting device according to claim 2 , wherein the induction coil is arranged correspondingly to the permanent magnet, and the magnetic poles of the permanent magnet are staggeredly installed on the ratchet disc. 4 . 4. The wave energy harvesting device according to claim 3, wherein the coil mounting plate is provided with a plurality of circular grooves, and the induction coil is arranged in the circular grooves; the ratchet plate is provided with a plurality of circular grooves , the permanent magnet is arranged in the circular groove. 5. The wave energy harvesting device according to claim 2, characterized in that, the two sides of the second gear are respectively provided with a permanent magnet generator assembly and a ratchet transmission group. 6. The wave energy harvesting device according to claim 1, characterized in that there are at least two second gears, which mesh with the first gears respectively. 7. The wave energy harvesting device according to claim 1, characterized in that at least two groups of the gear transmission group, the ratchet transmission group and the permanent magnet generator assembly are arranged symmetrically on both sides of the first transmission member.

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