JP2001329939A - Wave activated power generating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems such as low strength and efficiency against a meteorological change of the ocean, which is assumed to prevent wave activated power generation developed in a research institute and the like from being brought into practical use, by forming a device into a shape resistible against the severe meteorological change of the ocean and using reciprocation for both of up and down motion of wave for providing a high output. SOLUTION: A wave receiving part movable upward/downward is installed on the outside of the central cart in a generation part of a cylindrical container with closed upper and lower sides, and a power generator is installed on the inside of the cylindrical container. A driving belt is installed vertically around the outer circumference of the power generating part and fixed with the wave receiving part so as to follow the wave motion movably upward/downward, and this upward/downward motion is converted into a fixed directional rotating force by means of the driving belt, a gear and the like for turning the power generator, and consequently, generated power output is obtained. This wave activated power generating device is constructed of the power generating part in a main body, the wave receiving part, an anchoring device and the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wave power generation device that converts a vertical motion of a wave into a rotational motion in a certain direction and applies a rotational force to a generator to generate power.

[0002]

2. Description of the Related Art Conventionally, wave power generation in which a turbine is rotated by air pressure generated by the vertical movement of waves in a container and a generator is turned has been the mainstream.

[0003]

The conventional methods have the following drawbacks, respectively. (1) Changes in indoor air volume due to up and down of waves, that is, a method of converting air pressure into a rotational force of a fan requires large-sized floating type and fixed type devices and low power generation efficiency. (2) The method of converting the wave moving thrust into rotational force has a low power generation efficiency because the wave thrust has a period.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, the device is relatively small, and a wave receiving portion which can follow the movement of the wave is attached to the outer periphery of the power generation portion of the cylindrical container to drive both forces of the vertical movement of the wave. This problem is solved by directly converting the torque into torque by a belt and a free gear.

[0005]

(1) The power generating unit container of the main body is connected to a plurality of stabilizers on the lower anchor chain and locked to the seabed in a state of standing in the sea. It is hard to be affected and it is installed stably as if it was fixed in the sea while being a buoyant body. (2) The wave receiving portion mounted around the power generation unit repeatedly rises and falls following the wave around the power generation unit container, and the drive belt transmits this up-and-down motion to the torque transmission device of the power generation unit. (3) The drive belt fixed to the wave receiving portion repeats vertical movement, that is, rotation and reverse rotation, and the drive belt is connected to a free gear that operates only when ascending, a free gear that operates only when descending, and the like. In addition, since the gear that operates at the time of lowering is provided with a gear that changes the direction of rotation, the generator always applies a rotational force in the same direction. (4) The transmission provides the number of rotations required for power generation, and the flywheel keeps rotating even when the wave receiving portion stops moving at the peaks and valleys of the waves, and continues stable power generation. (5) The buoyant body and the weight provided in the middle of the anchor chain correspond to the rise and fall of the sea surface due to the ebb and flow of the tide, and secure the stability of the entire apparatus.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below. (1) A roller guide 4 is provided vertically on four outer surfaces of a power generation unit 1 of a hollow cylindrical container whose upper and lower parts are closed, and stoppers 5 are provided at upper and lower ends. (2) The wave receiving portion 2 is formed by attaching roller holders 3 to four insides of a donut-shaped wave receiving plate 15, attaching an edge 16 around an upper portion of the wave receiving plate 15, and attaching a buoyant body 17 to a lower portion. (3) The wave receiving section 2 is attached so that the roller holder 3 enters the roller guide 4 provided outside the power generation section 1. (4) A belt hole 7 for passing the drive belt 6 is provided on the upper two surfaces of the power generation unit 1, and a wheel 8, a free gear 9, a gear 10 for changing the rotation direction and a transmission gear 11 are mounted inside, and connected by the drive belt 6. . (5) The generator 12 is mounted on the upper inside of the power generation unit 1, the flywheel 14 and the free gear 9 are mounted on the rotating shaft 13, and the transmission gear 11 and the drive belt 6 are connected. (6) A guide 18 for passing the drive belt 6 is provided outside the lower part of the power generation unit 1, and a roller 19 is attached to the guide 18. (7) The drive belt 6 is vertically attached to the outside of the power generation unit 1 through the belt holes 7 and the guides 18, and one fixing portion 20 that comes into contact with the roller holder 3 is fixed. (8) A stabilizer 21 is attached to the lower outside of the power generation unit 1, an anchor chain 24 to which a buoyant body 22 and a weight 23 are attached in the middle, and an anchor 25 is attached to the tip. (9) Attach the power output cable 26 to the outside of the lower part of the power generation unit 1. (10) Corner reflector 2 on the upper outside of power generation unit 1
A cover 28 for preventing intrusion of seawater or the like is attached on the belt hole 7 and the belt hole 7. A wave power generation device including the above power generation unit, wave receiving unit, anchor and the like.

[0007] The present invention has a structure as described above. When using the wave power generation device, the weight is set so that the wave receiving portion is located at the center of the power generation portion while the wave power generation device is installed on a stationary sea surface. After the adjustment, the anchoring force is applied to the seashore or the like where relatively large waves come, and the force of the rising and falling of the waves is captured by the wave receiving portion to obtain a stable and highly efficient power generation output.

According to the present invention, a cylindrical container which is not greatly affected by weather changes on the sea is held in the shape of standing in the sea and anchored to the seabed by an anchor chain, an anchor or the like. For this reason, (1) it is possible to generate and supply clean power without using fuel or the like. (2) Since both the reciprocating force of the wave and the reciprocating force are directly converted into rotational force and transmitted to the generator, the power generation efficiency is high. (3) Since the wave power generation device itself is compact and has a floating structure, it is easy to manufacture and install, and adapts to changes in sea conditions, is resistant to wave impact, and has a high operation rate. (4) The wave power generator has a simple and robust structure,
In addition, it can be manufactured at low cost. (5) By installing and operating a plurality of wave power generators, a considerably stable output can be obtained. (6) The wave power generator can be installed anywhere, regardless of where it is located, near a coast having relatively large waves. As described above, the present invention is a highly efficient wave power generation device that has a simple structure, is inexpensive, and is adapted to weather and sea conditions. This device greatly contributes to this field.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of an embodiment.

FIG. 2 is a plan view of a wave power generator.

FIG. 3 is an overall side view of the embodiment.

FIG. 4 is a longitudinal sectional side view of the third embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Power generation part 11 Transmission gear 21
Stabilizer 2 Wave receiver 12 Generator 22
Buoyant body 3 Roller holder 13 Rotation axis 23
Weight 4 Roller guide 14 Flywheel 24
Anchor chain 5 Stopper 15 Wave receiving plate 25
Anchor 6 Drive belt 16 Edge 26
Power output cable 7 Belt hole 17 Buoyancy body 27
Corner reflector 8 Wheel 18 Guide 28
Cover 9 Free gear 19 Roller 10 Gear 20 Fixing point

Claims (3)

[Claims] (1) A power generation unit of a cylindrical container having a length sufficient than the maximum wave height expected on the sea surface is stably floated in a state of standing in the sea, and a wave receiving unit movable up and down is provided outside the power generation unit. Provide. (2) A rotary transmission and a generator are provided in the power generation unit container. (3) A drive belt is provided that passes through the upper inside of the power generation unit container and makes a round around the outside of the container vertically, and fixes one place to the wave receiving unit to connect the movement of the drive belt to the inner rotary transmission. (4) The wave receiving portion is provided with a buoyant body and a roller holder with the edge around the upper side of the wave receiving plate. (5) The rotation transmission device includes a free gear that incorporates a ratchet mechanism and transmits a rotational force in a certain direction, a gear that changes the rotation direction, and a transmission gear, and is connected to the generator by a drive belt. A free gear and a flywheel are provided on the rotating shaft of the generator. (6) A power output cable of sufficient length, a plurality of stabilizers, an anchor chain of sufficient length, a buoyant body and a weight attached in the middle, and a plurality of anchors or weights at the tip Attach etc. A wave power generation device comprising the above power generation unit, wave receiving unit, anchor and the like. (1) Two sets of drive belts provided on the power generation unit container, the rotation transmission device and the drive belt passing through the inside of the upper portion of the container and vertically extending around the outside of the container, each having one set with the wave receiving portion on the opposite side. The wave power generator according to claim 1, wherein the rotational force is connected to the generator by a drive belt while fixing the location. (1) A support for supporting the wave receiving portion in the center of the inside of the power generating portion, and a vertical slit on the four outer surfaces of the power generating portion container, and a roller holder for the wave receiving portion is attached to the support. (2) a generator room and a rotary transmission device on the upper inside of the power generation unit;
A buoyancy chamber is provided at the bottom. (3) The wave power generation device according to claim 1 or 2, wherein the up-and-down motion of the wave is converted into rotational force inside the power generation unit and connected to the generator by a drive belt.