KR102554350B1 - Buoy type wave power generation apparatus - Google Patents

Abstract

A buoy-type wave power generator is disclosed. In the buoy-type wave power generator according to the present invention, a closed buoyancy space is formed at the top to generate buoyancy, and at the top, the flow is separated from the buoyancy space and accommodated so that the solid or liquid for flow amplification flows in an unspecified direction. A case in which an amplification space is formed and moored by a mooring line; a weight provided on the bottom of the case to give a center of gravity so that the case remains erect when floating on the sea level; and at least one wave power generation module provided in the buoyancy space configured to convert potential energy into electrical energy when the case is shaken by waves.

Description

Buoy type wave power generator {BUOY TYPE WAVE POWER GENERATION APPARATUS}

The present invention relates to a buoy-type wave power generation device, and more particularly, has functions of an idle buoy, marine observation buoy, or light buoy installed in a fish farm, and efficiently generates wave power by amplifying shaking caused by waves. It relates to a buoy-type wave power generator that can be used.

A buoy is one of the navigational signs that are floated on the water to indicate the course of a ship to help safe navigation or to warn of dangerous objects such as reefs and sunken ships.

Buoys are divided into mooring buoys that float in a specific location by anchors and mooring ropes, and drifting buoys that move along the ocean current and transmit observation data.

Mooring buoys can be used to observe the ocean at a specific location, and are used to support nets or longlines in farms.

Recently, in order to self-generate electricity consumed in a communication module or a warning light (flashing light) provided in the buoy, various power generation devices are used in combination with the buoy.

For example, Korean Patent Laid-open Publication No. 10-2016-137805 (published date: 2016.12.01) discloses a solar power generation buoy. As shown in FIG. 1, the solar power generation buoy includes a case 110 floating on the sea level, a communication module 140 provided in the case 110, and power supplying power to the communication module 140. A supply unit 150, a balance maintaining unit 180 provided in the case 110 to maintain the center of the case 110, a condensing lens 160 provided on the upper side of the case 110, and a solar cell (152).

The above-described photovoltaic power generation buoy generated electricity through photovoltaic power generation even in a marine environment and supplied it to a communication module provided in the buoy, so that a separate power supply from the outside was unnecessary.

However, these solar power generation buoys have a problem in that power supply is disrupted by not generating power at night or when the weather is cloudy or the power generation efficiency is significantly lowered.

As another prior art, Korean Patent Registration No. 10-1959262 (published date: 2019.03.18) discloses a wave power module and a light buoy device including the same. The light buoy device has a structure in which a wave power module 112 is provided inside the buoyancy generating unit 102, as shown in FIG.

Such a light buoy device can implement self-power generation in offshore structures by converting changes in potential energy by waves into electric energy by electromagnetic induction coupling.

However, in the above-described light buoy device, since the buoyancy generator and weight are provided at the bottom and only the reflector support is provided at the top, shaking of the light buoy due to waves is weak, and this shaking alone reduces the power generation efficiency of the wave power module. there was

. Korean Patent Publication No. 10-2016-137805 (published date: 2016.12.01) . Republic of Korea Patent No. 10-1959262 (Announcement date: 2019.03.18)

An object of the present invention is to amplify the functions of idle buoys, marine observation buoys or light buoys installed in fish farms to support nets, longlines, etc., and wave power generation in the wave power module built in to amplify the shaking caused by the waves. It is to provide a buoy-type wave power generator that can make this happen efficiently.

In addition, the problem to be solved by the present invention is not limited to the above-mentioned technical problems, and other technical problems not mentioned above will be clear to those skilled in the art from the description below. You will be able to understand.

According to the present invention, according to the present invention, a closed buoyancy space is formed at the bottom to generate buoyancy, and at the top, a flow amplification space is separated from the buoyancy space and accommodated so that a solid or liquid for flow amplification flows in an unspecified direction. A case is formed and moored by a mooring line; a weight provided on the bottom of the case to give a center of gravity so that the case remains erect when floating on the sea level; And it is achieved by a buoy-type wave power generation device comprising at least one wave power module provided in the buoyancy space configured to convert potential energy into electrical energy when the case is shaken by waves.

The solid for flow amplification may be made of a steel ball, and the bottom of the flow amplification space may be made of a curved surface.

The liquid for flow amplification is composed of seawater, and may fill more than 2/3 of the flow amplification space.

The mooring line is formed by combining a chain of a plurality of rings made of metal and a rope made of fibrous material connected to each other in succession, and the rope can be coupled by passing through each of the rings in turn.

The case is made of a cylindrical shape, and the buoyancy space may be formed with a larger volume than the flow amplification space.

A separate auxiliary flow amplification space may be further provided above the flow amplification space.

Between the buoyancy space and the flow amplification space or on top of the flow amplification space, an internal rotation type wind power generator in which a plurality of wings are disposed inside the body may be provided.

At the top of the case, a solar panel for photovoltaic power generation may be provided.

According to the present invention, the buoyancy space and the flow amplification space are provided in multiple stages in the case, the wave power generation module is installed in the buoyancy space, and the flow amplification material is accommodated in the flow amplification space, thereby performing the function of the buoy and wave power generation at the same time. effect can be provided.

According to the present invention, when the flow amplification material is accommodated in the flow amplification space and the case is shaken by waves, the flow amplification material additionally flows (slides) in an unspecified direction, thereby amplifying the shaking of the case, thereby amplifying the power generation efficiency of the wave power module. This can provide an effect that can be remarkably improved.

According to the present invention, since the mooring line is configured by combining a metal ring chain and a fiber rope, durability can be remarkably improved.

According to the present invention, it is possible to provide an effect that wave power generation, wind power generation and solar power generation can be achieved in one case by being provided with an internal rotating wind power generator and a solar panel in the case.

According to the present invention, the buoy-type power generation device according to the present invention is installed in a fish farm and can be applied to idle buoys, marine observation buoys or light buoys that support nets, longlines, etc., such as fish farms, marine observation buoys or The power required by the light buoy can be produced by itself in an environmentally friendly way, and thus it is possible to provide an effect that does not require a separate power supply from the outside.

1 is a view showing a solar power generation buoy according to the prior art.
2 is a view showing a light buoy device according to the prior art.
3 is a view showing a buoy-type wave power generator according to a first embodiment of the present invention.
4 is a view for explaining the operation of the buoy-type wave power generator shown in FIG.
Figure 5 is a schematic perspective view showing the wave power module shown in Figure 3;
6 is a view showing a buoy-type wave power generator according to a second embodiment of the present invention.
7 is a view showing a buoy-type wave power generator according to a third embodiment of the present invention.
8 is a view showing a buoy-type wave power generator according to a fourth embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

In this specification, the terms used are for describing the embodiments and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. The terms 'comprises' and/or 'comprising' used in the specification do not exclude the presence or addition of one or more other elements.

In this specification, when an element is referred to as being “connected” to another element, it should be understood that although it may be directly connected to the other element, other elements may exist in the middle. On the other hand, when an element is referred to as being “directly connected” to another element, it should be understood that no intervening elements exist.

In this specification, the terms used are only used to describe specific embodiments, and are not intended to limit the present invention.

In this specification, singular expressions include plural expressions unless the context clearly dictates otherwise.

Among the accompanying drawings, FIG. 3 is a view showing a buoy-type wave power generator according to the first embodiment of the present invention, and FIG. 4 is a view for explaining the operation of the buoy-type wave power generator shown in FIG. 3, Figure 5 is a schematic perspective view showing the wave power module shown in Figure 3;

As shown in FIG. 3, the buoy-type wave power generator 10 according to the first embodiment of the present invention includes a case 20 in which a buoyancy space 22 and a flow amplification space 24 are formed in multiple stages, and a case It includes a weight 30 provided at the center of the bottom surface of 20 and a wave power generation module 40 provided in the buoyancy space 22.

The case 20 is configured to serve as a buoy, and a buoyancy space 22 for generating buoyancy is sealed and formed at the bottom, and a flow amplification space 24 is formed at the top of the buoyancy space 22. The case 20 is formed in a cylindrical shape as a whole, and the lower buoyancy space 22 is formed with a larger volume than the upper flow amplification space 24. This is to ensure that the case 20 has sufficient buoyancy.

The flow amplification space 24 is filled with liquid for flow amplification by 2/3 or more. The liquid may consist of sea water. When the liquid is filled to the full, the liquid does not fluctuate, so amplification of shaking does not occur or is weak. Fill up.

The case 20 may be made of a metal material, a synthetic resin material, or a fiberglass material, and may be made of a combination of these materials.

Since the case 20 has a structure in which the buoyancy space 22 is formed at the bottom, the flow amplification space 24 is formed at the top of the buoyancy space 22, and the flow amplification space 24 is filled with liquid, When (20) tilts to either side around the weight (30), the liquid filled in the flow amplification space (24) moves in the direction in which the case (20) is tilted, further amplifying the tilt of the case (20). . Also, when the case 20 tilts in the opposite direction due to recoil, the liquid contained in the flow amplifying space 24 moves in the opposite direction, further amplifying the tilt of the case 20 . On the other hand, since the liquid filled in the flow amplification space 24 is not in a restrained state, it continuously shakes the upper part of the case 20 while shaking, so that the shaking of the case 20 is amplified and can be continued.

The mooring line 50 is formed by combining a chain 52 in which a plurality of rings 52A made of a metal material are connected to each other in succession and a rope 54 made of a fibrous material. As shown in the enlarged view of FIG. 3, the rope 54 passes through each of the loops 52A in turn and is coupled. Since ropes made of fibrous material are coupled by passing through each of the rings 52A alternately, collisions between the chains 52 made of metal are buffered or alleviated by tensile loads, so that breakage due to fatigue accumulation can be prevented or minimized.

The weight 30 is to ensure that the center of gravity of the case 20 is at the bottom so as to maintain an upright state when the case 20 floats on the sea level. The weight 30 is coupled to the end of the support body coupled directly downward from the bottom surface of the case 20 .

The wave power generation module 40 is provided in the buoyancy space 22 so as to convert the potential energy that is changed when the case 29 is shaken in all directions by waves into electrical energy. That is, when the case 20 repeats the process of being tilted along the wave surface and erected again by waves, the change in the position of the pendulum is converted into a rotational operation to generate power.

The wave power generation module 40 is not limited to any one structure and may be configured in various ways. As an example, as shown in FIG. 5, a turbine 46 for wave power generation for generating power by rotational motion is provided inside a four-sided hexahedral housing 44, and each surface of the housing 44 has a structure in which the pendulums 48, which perform pendulum motion by the inclination of the case 20, are coupled to the rotation shaft, respectively. With this structure, when the case 20 is tilted by a wave, the corresponding pendulums 48 tilt to one side and rotate each rotational shaft, and the rotational force of each rotational shaft is generated by the gear module provided inside the housing 44. Rotate (46) to generate electricity.

In the wave power generation module 340, the liquid for flow amplification is partially filled in the flow amplification space 24 formed on the upper part of the case 20, and the weight 30 is provided on the bottom of the case 20, When the waves act on the case 20, the case 20 shakes more greatly, so that power generation efficiency can be improved. In other words, since the weight 30 is provided on the bottom of the case 20 and the flow amplification space 24 on the upper side is filled with the liquid for flow amplification with the center of gravity at the lower center, the case 20 ) is tilted and erected again or tilted in a different direction, the liquid filled in the flow amplification space 24 is also independently freely sloshed in the tilted direction of the case 20. Therefore, the case 20 shakes more and more as the shaking caused by the waves is added to the shaking caused by the sloshing of the liquid filled in the flow amplification space 24, so the power generation efficiency of the wave power module 40 built in the buoyancy space 22 This can be significantly improved.

On the other hand, the buoyancy space 22 of the case 20 may be provided with an energy storage unit for temporarily storing electricity generated from the wave power module 40, and a warning light and observation sensors provided at the top of the case 20 A communication unit and a control unit for transmitting sensed data to an external server and receiving a control command may be respectively provided.

As described above, the weight 30 is mounted on the bottom of the case 20 in which the buoyancy space 22 and the flow amplification space 24 are formed in multiple stages, and the flow amplification space 24 is filled with liquid and the buoyancy space ( 22), the wave power generation module 40 is installed, so as shown in FIG. 4, when the case 20 is tilted by the waves, the liquid accommodated in the flow amplification space 24 moves in the inclined direction of the case 20. The tilting of the case 20 can be further amplified by further sliding and moving. In addition, since the liquid-filled flow amplification space 24 is provided on the upper part of the case 20, the shaking of the case 20 can be further amplified by the sloshing of the liquid.

Due to this action, the power generation efficiency of the wave power generation module 40 installed in the buoyancy space 22 can be further improved.

Among the accompanying drawings, FIG. 6 is a view showing a buoy-type wave power generator according to a second embodiment of the present invention.

As shown in FIG. 6, in the buoy-type wave power generator 10 according to the second embodiment, the material for flow amplification is made of a steel ball (26: steel ball) as a solid, and the flow amplification space of the case 20 (24) The bottom is the same as in the foregoing embodiment except that the curved surface 24A is formed.

The material for flow amplification is made of a steel ball 26 and an arc-shaped curved surface 24A is formed at the bottom of the flow amplification space 24, so that when the case 20 is tilted by waves, the steel ball 26 moves to the case ( 20) to tilt the upper part of the case 20 in a more inclined direction, so that the tilt of the case 20 can be amplified. By repeating these actions, the power generation efficiency of the wave power module 40 can be improved.

Among the accompanying drawings, FIG. 7 is a view showing a buoy-type wave power generator according to a third embodiment of the present invention.

As shown in FIG. 7, in the buoy-type wave power generator 10 according to the third embodiment, a separate auxiliary flow amplification space 28 is further provided above the flow amplification space 24 of the case 20 Except for that, it is the same as the above-described embodiments.

Since the flow amplification space 24 and the auxiliary flow amplification space 28 are formed in multiple stages at the top of the case 20, the liquid or steel ball 26 filled in the flow amplification space 24 and the auxiliary flow amplification space 28 is When (20) is tilted, the case (20) is tilted further. This is because the distance between the auxiliary flow amplification space 28 and the weight 30, which is the center of gravity, is far, so the case 20 is tilted while the liquid or solid filled in the protective flow amplification space 28 moves (rocks) to one side. The force and moment to try have a big effect. Therefore, the case 20 can be tilted at a larger angle, and this tilting continuously occurs, so that the power generation efficiency of the wave power module 40 can be remarkably improved.

Among the accompanying drawings, FIG. 8 is a view showing a buoy-type wave power generator according to a fourth embodiment of the present invention.

As shown in FIG. 8, the buoy-type wave power generator 10 according to the fourth embodiment is between the buoyancy space 22 and the flow amplification space 24 or on top of the flow amplification space 24, Wings 76 are the same as the above-described embodiment except that the internal rotating wind turbine generator 70 is disposed inside the body 72. In this embodiment, the wind power generator 70 will be described based on being provided at the top of the flow amplification space 24 .

As shown in FIG. 8, in the wind turbine generator 70, a rotating body 74 having wings 76 is provided inside a cylindrical body 72, and the top or bottom of the rotating body 74 is provided. The lower part has a structure in which a generator 78 is coupled. In addition, an inlet 72A for introducing external air is provided at the lower end of the body 72, and an outlet 72B is provided at the upper end.

The wind power generator 70 rotates the blades 76 in the process in which the wind blowing from the outside of the case 20 is introduced into the lower inlet 72A, moves upward, and is discharged through the outlet 72B, thereby generating a generator. (78) has a structure in which power generation is made.

Meanwhile, a solar panel 80 for photovoltaic power generation is installed on top of the body 72 .

As described above, in the buoy-type wave power generator 10 according to the present invention, the wave power module 40 is installed in the buoyancy space 22 of the case 20, and the wind power generator 70 and solar light are installed at the top. By installing the panel 80, energy harvesting that can obtain electrical energy from nature can be realized.

The buoy-type wave power generator 10 according to the present invention is configured in a buoy structure, so that it can be applied as a buoy in a fish farm to supply necessary power in the fish farm. In addition, it is applied as an observation buoy and can supply the power required by the observation equipment itself, enabling long-term observation operation of the observation equipment without replacing the battery.

In the foregoing, although specific embodiments of the present invention have been described and shown, the present invention is not limited to the described embodiments, and it is common knowledge in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Therefore, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and modified embodiments should fall within the scope of the claims of the present invention.

10: buoy type wave power generator 20: case
22: buoyancy space 24: fluid amplification space
30: weight 40: wave power module
50: mooring line
70: wind power generator 80: solar panel

Claims (8)

In the lower part, a closed buoyancy space is formed to generate buoyancy, and in the upper part, a flow amplification space separated from the buoyancy space and accommodating more than 2/3 of the flow amplification liquid made of seawater flows in an unspecified direction is formed, cases moored by mooring lines; a weight provided on the bottom of the case to give a center of gravity so that the case remains erect when floating on the sea level; And at least one wave power generation module configured to convert potential energy into electrical energy when the case is shaken by waves and provided in the buoyancy space,
The case is
It is made of a cylindrical shape, the buoyancy space is formed with a larger volume than the flow amplification space, and a separate auxiliary flow amplification space is further provided at the top of the flow amplification space, and the buoyancy space is produced from the wave power generation module. An energy storage unit for storing electrical energy and a communication unit and control unit for transmitting data detected by observation sensors to the outside and receiving control commands are provided, respectively.
The wave power module,
a hexahedral housing having four sides;
A turbine for wave power generation for generating power by rotational motion inside the housing; and
Characterized in that each side of the housing includes a pendulum coupled to a rotating shaft having a gear module connected to the turbine so as to perform a pendulum motion by tilting the case.
Buoy-type wave power generator. delete delete According to claim 1,
The mooring line is
Characterized in that a chain of a plurality of rings made of metal material is connected to each other in succession and a rope made of fibrous material is combined, and the rope is coupled by passing through each of the rings in turn,
Buoy-type wave power generator. delete delete According to claim 1,
Between the buoyancy space and the flow amplification space or on top of the flow amplification space,
Characterized in that an internal rotating wind power generator in which a plurality of wings are disposed inside the body is provided,
Buoy-type wave power generator. According to claim 7,
At the top of the case,
Characterized in that a solar panel for solar power generation is provided,
Buoy-type wave power generator.

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