CN111396253B

CN111396253B - Offshore clean energy floating power generation ship

Info

Publication number: CN111396253B
Application number: CN202010298489.0A
Authority: CN
Inventors: 刘肃峰
Original assignee: Hailuo Lianyungang Technology Co ltd
Current assignee: Shenzhen Haice Intelligent Technology Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2022-09-13
Anticipated expiration: 2040-04-16
Also published as: CN111396253A

Abstract

The invention discloses an offshore clean energy floating power generation ship, which comprises a circular disc body, wherein an upright post is fixedly arranged on the top surface of the circular disc body, a lifting plate is arranged on the periphery of the upright post in a vertically sliding manner, two ends of the lifting plate, which are far away from each other, are hinged with swinging plates capable of swinging, and a first solar panel for power generation is fixedly arranged on one side surface of the two swinging plates, which are close to each other, and the top surface of the lifting plate.

Description

Offshore clean energy floating power generation ship

Technical Field

The invention relates to the technical field of clean energy, in particular to an offshore clean energy floating power generation ship.

Background

Clean energy, namely green energy, refers to energy which does not discharge pollutants and can be directly used for production and life, and comprises nuclear energy and renewable energy, and the renewable energy has no possibility of energy exhaustion, so that the development and utilization of the renewable energy are increasingly paid attention by many countries;

the traditional wind power generation is generally built on a mountain, the solar cell panel is basically laid on the flat ground in a large area, the wind power generation and the solar power generation are rarely built on the sea, but the wind is frequently blown on the sea surface, and the solar cell panel is spacious, so that the wind power generation or the solar power generation equipment is very suitable for building, and abundant wave energy is available on the sea surface An inexpensive power plant for offshore single user use.

Disclosure of Invention

The object of the present invention is to provide an offshore clean energy floating power generating vessel, which overcomes the above-mentioned drawbacks of the prior art.

The offshore clean energy floating power generation ship comprises a circular disc body, wherein an upright post is fixedly arranged on the top surface of the circular disc body, a lifting plate is arranged on the periphery of the upright post in a vertical sliding manner, swinging plates capable of swinging are hinged to two ends, far away from each other, of the lifting plate, a first solar panel for power generation is fixedly arranged on one side surface, close to each other, of the two swinging plates and the top surface of the lifting plate, when the lifting plate is lifted, the swinging plates can be unfolded simultaneously, fixing plates are fixedly arranged at the left end and the right end, close to the top, of the upright post, a gear disc is rotatably arranged on the front side surface of each fixing plate, curved plates in a bending design are fixedly arranged on the rear side surfaces of the two gear discs, a second solar panel is fixedly arranged on the inner arc surfaces of the two curved plates, a sliding block is vertically arranged on the top surface of the upright post in a sliding manner, and two third solar panels are hinged to the front side surface of the sliding block, the inner arc surfaces of the two curved plates are respectively provided with a T-shaped chute, the top ends of the two third solar panels are fixedly provided with a pin shaft, the pin shafts are respectively arranged in the corresponding T-shaped chutes in a sliding manner, when the curved plates swing, the third solar panels can be unfolded, so that the third solar panels and the second solar panels can generate electricity, when the two curved plates are folded, the effect of protecting the second solar panels and the third solar panels can be achieved, the periphery of the disc body is rotatably provided with a rotating disc, the top surface of the rotating disc is fixedly provided with two fan frames which are bilaterally symmetrical, the two fan frames are internally and rotatably provided with fans for generating electricity, the bottom surface of the rotating disc is vertically and slidably provided with two racks which are bilaterally symmetrical, the bottom ends of the two racks are fixedly provided with hollow balls, and the hollow balls can move up and down under the driving of wave patterns, two bilateral symmetry electricity generation chambeies have been seted up in the rolling disc, two all rotate on the side that the electricity generation chamber is close to each other and be equipped with the coil, all rotate on the side of keeping away from each other and be equipped with permanent magnet, the coil with permanent magnet turns to opposite, coil pivoted power by the clean shot reciprocates and provides, permanent magnet pivoted power by the fan rotates and provides, the coil with permanent magnet can the mutual induction generate electricity.

In a further technical scheme, two thread blocks which are symmetrical left and right are arranged on the top surface of the disc body in a sliding way, the thread block is hinged with the bottom surface of the lifting plate through a first connecting rod, the bottom end of the swinging plate is hinged with a second connecting rod, the bottom end of the second connecting rod is hinged with the first connecting rod, a power cavity is arranged in the middle of the disc body, a power motor is fixedly embedded in the bottom wall of the power cavity, the top end of the power motor is in power connection with a power shaft extending upwards, a power bevel gear is fixedly arranged on the periphery of the power shaft, screw shafts extending left and right are rotatably arranged on the left side wall and the right side wall of the power cavity, the screw shaft is connected with the screw block in a threaded fit manner, the extension section at one side, away from each other, of the screw shaft is connected with the corresponding screw block in a threaded fit manner, the tail end of one side, close to each other, of the two screw shafts is fixedly provided with a driven bevel gear, and the driven bevel gear is meshed with the power bevel gear.

Further technical scheme, the stand is seted up the rectangular chamber, the worm that extends about the rectangular chamber internal rotation is equipped with, driven gear has set firmly in the periphery of worm, the top extension of power shaft stretches into the rectangular chamber is intracavity, just the top of power shaft has set firmly power gear, power gear with driven gear meshes, the left and right sides extension of worm respectively with correspond the toothed disc meshing, works as during the power motor work, can drive simultaneously the lifter plate rises, the swinging plate expandes opening of curved plate with the expansion of third solar panel.

According to the technical scheme, fan shafts are rotatably arranged in the two fan frames respectively, the fan shafts are fixed to corresponding fans respectively, the rotary disc is internally and rotatably provided with two transverse shafts which are bilaterally symmetrical and extend in the front-back direction, the rear side ends of the transverse shafts are connected with the front side ends of the fan shafts through belt power, ratchet wheels are rotatably arranged on the sides, close to the racks, of the two racks, the ratchet wheels are meshed with the racks, transmission shafts are rotatably arranged on the front sides of the ratchet wheels, the transmission shafts are meshed with the ratchet wheels, namely the ratchet wheels can only drive the transmission shafts to rotate towards one direction, and when the ratchet wheels rotate towards the other direction, the transmission shafts cannot rotate.

According to the technical scheme, power generation shafts are rotatably arranged on the left side wall and the right side wall of the power generation cavity, the right end of the left power generation shaft is fixed with the coil, the left end of the right power generation shaft is fixed with the permanent magnet, second bevel gears are fixedly arranged at the ends, far away from each other, of the two power generation shafts, a first bevel gear is fixedly arranged at the front side end of the transmission shaft, a third bevel gear is fixedly arranged at the front side end of the cross shaft, and the third bevel gear and the first bevel gear are meshed with the corresponding second bevel gears so that the coil and the permanent magnet rotate in opposite directions to generate power.

Further technical scheme, all set firmly the sail on the side that the rolling disc kept away from each other, the sail is used for driving the rolling disc rotates, makes the fan makes all the time towards the direction, on the bottom surface of the disc body and all set firmly showy material on the bottom surface of rolling disc, showy material be used for with the rolling disc with the disc body holds up, makes the disc body floats on the surface of water, be equipped with in the rolling disc with coil electric connection's battery, the downside of the disc body is equipped with and is used for preventing the anchor body that the disc body drifted along with the wave.

The invention has the beneficial effects that: the curved plate can be folded or unfolded to drive the third solar panel to be unfolded or stored, the lifting plate can drive the swinging plate to be unfolded while lifting, and the curved plate can be used for wrapping the third solar panel in bad weather, the swinging plate covers the lifting plate, so that the swinging plate and the first solar panel, the second solar panel and the third solar panel on the lifting plate are shielded to prevent hail and the like from damaging the first solar panel and the third solar panel, and the invention adopts a smart structural design to simultaneously drive the opening of the curved plate, the extension of the third solar panel, the lifting of the lifting plate and the extension of the swinging plate by the power motor, thereby improving the linkage of equipment, saving the number of motors, avoiding inconvenience caused by non-uniform actions of a plurality of motors, effectively utilizing wind energy and wave energy, the rotating disc is designed to rotate on the periphery of the disc body, when wind sails are blown by wind, the rotating disc is made to rotate, the fan can face the wind direction all the time, the utilization rate of wind energy is greatly improved, by means of ingenious design, when the hollow balls are driven to move up and down by wave tides, the coils can also rotate, the rotation directions of the coils and the permanent magnets are opposite, the electromagnetic induction generating efficiency is greatly improved, the device can generate electricity through solar energy, the device can generate electricity through wind energy and wave tides, the adaptability and the function of equipment are greatly improved, meanwhile, the device is designed by a common structure through ingenious conception, the cost is low, and the device is very convenient to popularize.

Drawings

FIG. 1 is a schematic view of the internal structure of an offshore clean energy floating power generation vessel according to the present invention;

FIG. 2 is an enlarged view of the fan of the present invention;

FIG. 3 is an enlarged partial schematic view of A of FIG. 1 in accordance with the present invention;

FIG. 4 is an enlarged schematic view of the present invention at a third solar panel;

fig. 5 is a partial sectional view at the power generation chamber of the present invention.

Detailed Description

For purposes of making the objects and advantages of the present invention more apparent, the following detailed description of the invention, taken in conjunction with the examples, should be understood that the following text is intended only to describe one or more specific embodiments of the invention, and is not intended to strictly limit the scope of the invention as specifically claimed, and as used herein, the terms top, bottom, left and right are not limited to their strict geometric definition, but rather include tolerances for reasonable and inconsistent machining or human error, the following detailed description being specific to the specific features of the offshore clean energy floating power generating vessel:

referring to fig. 1-5, an offshore clean energy floating power generation ship according to an embodiment of the present invention includes a circular disc body 10, wherein an upright post 21 is fixedly disposed on a top surface of the circular disc body 10, a lifting plate 16 is slidably disposed on an outer periphery of the upright post 21 up and down, two ends of the lifting plate 16 away from each other are hinged to a swinging plate 15 capable of swinging, a first solar panel 36 for power generation is fixedly disposed on one side surface of the two swinging plates 15 close to each other and on a top surface of the lifting plate 16, when the lifting plate 16 is lifted, the swinging plates 15 can be unfolded simultaneously, fixing plates 48 are fixedly disposed on left and right ends of the upright post 21 close to the top, a gear disc 47 is rotatably disposed on a front side surface of each fixing plate 48, a curved plate 23 with a curved design is fixedly disposed on a rear side surface of each gear disc 47, and a second solar panel 42 is fixedly disposed on an inner arc surface of each curved plate 23, a sliding block 46 is slidably arranged on the top surface of the upright post 21 up and down, two third solar panels 43 are hinged on the front side surface of the sliding block 46, T-shaped chutes 44 are respectively arranged on the inner arc surfaces of the two curved plates 23, pin shafts 45 are fixedly arranged at the top ends of the two third solar panels 43, the pin shafts 45 are respectively slidably arranged in the corresponding T-shaped chutes 44, when the curved plates 23 swing, the third solar panels 43 can be unfolded, so that the third solar panels 43 and the second solar panels 42 generate electricity, when the two curved plates 23 are folded, the second solar panels 42 and the third solar panels 43 can be protected, the rotating disc 14 is rotatably arranged on the periphery of the disc body 10, two fan frames 31 which are bilaterally symmetrical are fixedly arranged on the top surface of the rotating disc 14, and fans 32 for generating electricity are rotatably arranged in the two fan frames 31, the utility model discloses a hollow ball generator, including the rotating disc 14, the bottom of rack 29 all sets firmly hollow ball 13, hollow ball 13 can reciprocate under the drive of wave flower, set up two bilateral symmetry electricity generation chambeies 60 in the rotating disc 14, two all rotate on the side that electricity generation chamber 60 is close to each other and be equipped with coil 56, all rotate on the side of keeping away from each other and be equipped with permanent magnet 57, coil 56 with permanent magnet 57 turns to opposite, coil 56 pivoted power by hollow ball 13 reciprocates and provides, permanent magnet 57 pivoted power by fan 32 rotates and provides, coil 56 with permanent magnet 57 can the mutual-induction generate electricity.

Beneficially or exemplarily, two bilaterally symmetrical screw blocks 20 are slidably disposed on the top surface of the disc body 10, the screw blocks 20 are hinged to the bottom surface of the lifting plate 16 through a first connecting rod 17, a second connecting rod 18 is hinged to the bottom end of the swinging plate 15, the bottom end of the second connecting rod 18 is hinged to the first connecting rod 17, a power cavity 39 is disposed at the middle position of the disc body 10, a power motor 38 is fixedly embedded in the bottom wall of the power cavity 39, the top end of the power motor 38 is in power connection with a power shaft 41 extending upward, a power bevel gear 40 is fixedly disposed on the periphery of the power shaft 41, screw shafts 19 extending leftward and rightward are rotatably disposed on the left and right side walls of the power cavity 39, the extending sections of the screw shafts 19 far away from each other are in threaded fit connection with the corresponding screw blocks 20, driven bevel gears 37 are fixedly disposed at the ends of the two screw shafts 19 close to each other, the driven bevel gear 37 is engaged with the power bevel gear 40, and the screw shaft 19 moves the two screw blocks 20 away from each other by the operation of the power motor 38, so that the lifting plate 16 is lifted while the swing plate 15 is unfolded.

Beneficially or exemplarily, a rectangular cavity 52 is formed in the upright post 21, a worm 49 extending left and right is rotatably disposed in the rectangular cavity 52, a driven gear 50 is fixedly disposed on an outer circumference of the worm 49, a top extension portion of the power shaft 41 extends into the rectangular cavity 52, a power gear 51 is fixedly disposed at a top end of the power shaft 41, the power gear 51 is engaged with the driven gear 50, left and right extensions portions of the worm 49 are respectively engaged with the corresponding gear discs 47, and when the power motor 38 operates, the lifting plate 16, the swinging plate 15, the curved plate 23 and the third solar panel 43 can be simultaneously driven to ascend, unfold.

Advantageously or exemplarily, two lateral shafts 35 extending in the front-back direction and being bilaterally symmetrical are rotatably disposed in each of the two fan cases 31, the fan shafts 34 are respectively fixed to the corresponding fans 32, two lateral shafts 35 extending in the front-back direction and being bilaterally symmetrical are rotatably disposed in the rotary disc 14, the rear side end of the lateral shaft 35 is in power connection with the front side end of the fan shaft 34 through a belt 33, a ratchet wheel 61 is rotatably disposed on each of the two adjacent sides of the rack 29, the ratchet wheel 61 is engaged with the rack 29, a transmission shaft 30 is rotatably disposed on each of the front sides of the ratchet wheel 61, the transmission shaft 30 is engaged with the ratchet wheel 61, that is, the ratchet wheel 61 can only drive the transmission shaft 30 to rotate in one direction, and when the ratchet wheel 61 rotates in the other direction, the transmission shaft 30 does not rotate.

Beneficially or exemplarily, the power generation cavity 60 is rotatably provided with power generation shafts 55 on both left and right sidewalls, the right end of the power generation shaft 55 on the left side is fixed to the coil 56, the left end of the power generation shaft 55 on the right side is fixed to the permanent magnet 57, two second bevel gears 54 are fixedly provided at ends of the two power generation shafts 55 away from each other, a first bevel gear 53 is fixedly provided at a front side end of the transmission shaft 30, a third bevel gear 63 is fixedly provided at a front side end of the transverse shaft 35, and the third bevel gear 63 and the first bevel gear 53 are respectively engaged with the corresponding second bevel gears 54, so that the coil 56 and the permanent magnet 57 rotate in opposite directions to generate power.

Advantageously or exemplarily, sails 26 are fixed on the sides of the rotating discs 14 away from each other, the sails 26 are used for driving the rotating discs 14 to rotate, so that the fans 32 always face the direction, floating materials 11 are fixed on the bottom surfaces of the disc bodies 10 and the bottom surfaces of the rotating discs 14, the floating materials 11 are used for supporting the rotating discs 14 and the disc bodies 10, so that the disc bodies 10 float on the water surface, a storage battery 58 electrically connected with the coils 56 is arranged in the rotating discs 14, and an anchor body 12 used for preventing the disc bodies 10 from drifting with the waves is arranged on the lower side of the disc bodies 10.

In the initial state, the curved plate 23 is folded, the swing plate 15 is not unfolded, and the lifting plate 16 is at the lowest position.

When in use, wind blows the sail 26, so that the sail 26 drives the rotating disc 14 to rotate, so that the fan 32 is always towards the wind direction, the wind blows the fan 32 to rotate, so that the fan shaft 34 drives the transverse shaft 35 to rotate, so that the third bevel gear 63 drives the right power generation shaft 55 to rotate, so that the permanent magnet 57 rotates, the wave flowers drive the hollow balls 13 to move up and down, so that the rack 29 moves up and down, so that the transmission shaft 30 rotates, so that the ratchet 61 rotates, so that the transmission shaft 30 drives the first bevel gear 53 to rotate, so that the left power generation shaft 55 rotates, so that the coil 56 rotates opposite to the permanent magnet 57 to perform electromagnetic induction power generation, so that the electric energy is stored in the storage battery 58, and when the weather is clear, the power motor 38 is controlled to operate, the power shaft 41 drives the power bevel gear 40 to rotate, so that the driven bevel gear 37 drives the screw shaft 19 to rotate, thereby make the screw block 20 can be close to each other, and then make first connecting rod 17 drive the lifter plate 16 and rise, and second connecting rod 18 drives the swing board 15 and expandes simultaneously to, power shaft 41 drives power gear 51 and rotates, and then makes driven gear 50 drive worm 49 and rotate, thereby makes gear disc 47 drive curved plate 23 and open, makes third solar panel 43 expand, and then makes third solar panel 43, second solar panel 42 and first solar panel 36 can carry out solar energy power generation.

The beneficial effects of the invention are: the curved plate can be folded or unfolded to drive the third solar panel to be unfolded or stored, the lifting plate can drive the swinging plate to be unfolded while lifting, and the curved plate can be used for wrapping the third solar panel in bad weather, the swinging plate covers the lifting plate, so that the swinging plate and the first solar panel, the second solar panel and the third solar panel on the lifting plate are shielded to prevent hail and the like from damaging the first solar panel and the third solar panel, and the invention adopts a smart structural design to simultaneously drive the opening of the curved plate, the extension of the third solar panel, the lifting of the lifting plate and the extension of the swinging plate by the power motor, thereby improving the linkage of equipment, saving the number of motors, avoiding inconvenience caused by non-uniform actions of a plurality of motors, effectively utilizing wind energy and wave energy, the rotating disc is designed to rotate on the periphery of the disc body, so that wind can rotate when the sail is blown, the rotating disc is made to rotate, the fan can face the wind direction all the time, the utilization rate of wind energy is greatly improved, and through ingenious design, when the hollow ball is driven to move up and down by the tide, the coil can also rotate, the rotation directions of the coil and the permanent magnet are opposite, the electromagnetic induction generating efficiency is greatly improved, the device can generate electricity through solar energy, and can also generate electricity through the wind energy and the tide energy, the adaptability and the function of equipment are greatly improved, meanwhile, the device is designed by a common structure through ingenious conception, the cost is lower, the device is suitable for being purchased and used by families, and the popularization is very convenient.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.

Claims

1. An offshore clean energy floating power generation ship, which comprises a disk body and is characterized in that: the solar energy power generation disc is characterized in that an upright post is fixedly arranged on the top surface of the disc body, lifting plates are arranged on the periphery of the upright post in a vertically sliding manner, two ends, far away from each other, of the lifting plates are hinged with swinging plates, one side surface, close to each other, of the two swinging plates and the top surface of the lifting plates are respectively and fixedly provided with a first solar panel for power generation, when the lifting plates ascend, the swinging plates can be unfolded simultaneously, fixed plates are fixedly arranged at the left end and the right end, close to the top part, of the upright post, gear discs are respectively and rotatably arranged on the front side surfaces of the two fixed plates, curved plates in a bending design are respectively and fixedly arranged on the rear side surfaces of the two gear discs, a second solar panel is respectively and fixedly arranged on the inner arc surfaces of the two curved plates, sliding blocks are vertically slidably arranged on the top surface of the upright post, two third solar panels are hinged on the front side surfaces of the sliding blocks, and T-shaped chutes are respectively arranged on the inner arc surfaces of the two curved plates, the top ends of the two third solar panels are fixedly provided with pin shafts which are respectively arranged in the corresponding T-shaped chutes in a sliding manner, when the curved plates swing, the third solar panels can be unfolded, so that the third solar panels and the second solar panels generate electricity, when the two curved plates are folded, the effect of protecting the second solar panels and the third solar panels can be achieved, the periphery of the disc body is rotatably provided with a rotating disc, the top surface of the rotating disc is fixedly provided with two fan frames which are bilaterally symmetrical, the two fan frames are internally and rotatably provided with fans for generating electricity, the bottom surface of the rotating disc is vertically and slidably provided with two racks which are bilaterally symmetrical, hollow balls are fixedly arranged at the bottom ends of the two racks, the hollow balls can move up and down under the driving of waves, and two bilaterally symmetrical electricity generating cavities are formed in the rotating disc, the coil is rotatably arranged on one side face, close to each other, of each of the two power generation cavities, the permanent magnet is rotatably arranged on one side face, far away from each other, the direction of rotation of the coil is opposite to that of the permanent magnet, the power for rotating the coil is provided by the up-and-down movement of the hollow ball, the power for rotating the permanent magnet is provided by the rotation of the fan, and the coil and the permanent magnet can mutually induce to generate power; two bilaterally symmetrical thread blocks are slidably arranged on the top surface of the disc body, the thread blocks are hinged with the bottom surface of the lifting plate through a first connecting rod, the bottom end of the swinging plate is hinged with a second connecting rod, the bottom end of the second connecting rod is hinged with the first connecting rod, a power cavity is arranged at the middle part of the disc body, a power motor is fixedly embedded in the bottom wall of the power cavity, the top end of the power motor is in power connection with a power shaft extending upwards, a power bevel gear is fixedly arranged on the periphery of the power shaft, screw shafts extending leftwards and rightwards are rotatably arranged on the left side wall and the right side wall of the power cavity, extending sections on one sides, far away from each other, of the screw shafts are in threaded fit connection with the corresponding thread blocks, driven bevel gears are fixedly arranged at the tail ends of the sides, close to each other, of the two screw shafts, and the driven bevel gears are meshed with the power bevel gears; a rectangular cavity is formed in the upright post, a worm which extends leftwards and rightwards is rotationally arranged in the rectangular cavity, a driven gear is fixedly arranged on the periphery of the worm, an extending part of the top of the power shaft extends into the rectangular cavity, a power gear is fixedly arranged at the top end of the power shaft, the power gear is meshed with the driven gear, extending parts on the left side and the right side of the worm are respectively meshed with the corresponding gear discs, and when the power motor works, the lifting plate can be driven to ascend, the swinging plate can be driven to unfold, the curved plate can be driven to unfold, and the third solar panel can be driven to unfold; the fan shafts are rotatably arranged in the two fan frames and are respectively fixed with the corresponding fans, the rotating disc is rotatably provided with two transverse shafts which are bilaterally symmetrical and extend in the front-back direction, the rear side ends of the transverse shafts are connected with the front side ends of the fan shafts through belt power, one sides of the two racks which are close to each other are rotatably provided with ratchet wheels, the ratchet wheels are meshed with the racks, the front sides of the ratchet wheels are rotatably provided with transmission shafts, the transmission shafts are meshed with the ratchet wheels, namely the ratchet wheels can only drive the transmission shafts to rotate towards one direction, and when the ratchet wheels rotate towards the other direction, the transmission shafts cannot rotate; the left side wall and the right side wall of the power generation cavity are both rotatably provided with power generation shafts, the right end of the power generation shaft on the left side is fixed with the coil, the left end of the power generation shaft on the right side is fixed with the permanent magnet, two second bevel gears are fixedly arranged at the ends, far away from each other, of the two power generation shafts, a first bevel gear is fixedly arranged at the front side end of the transmission shaft, a third bevel gear is fixedly arranged at the front side end of the cross shaft, and the third bevel gear and the first bevel gear are both meshed with the corresponding second bevel gears, so that the coil and the permanent magnet rotate in opposite directions to generate power; the fan is characterized in that sails are fixedly arranged on one side face, far away from each other, of the rotating disc and are used for driving the rotating disc to rotate, the fan is enabled to face the direction all the time, floating materials are fixedly arranged on the bottom face of the disc body and the bottom face of the rotating disc and are used for supporting the rotating disc and the disc body, the disc body floats on the water surface, a storage battery electrically connected with the coil is arranged in the rotating disc, and an anchor body used for preventing the disc body from drifting along with waves is arranged on the lower side of the disc body.