JP3015921U - Wave generator - Google Patents

Abstract

(57) [Summary] [Purpose] To secure a certain amount of power generation and prevent a decrease in power generation over time. [Composition] The float magnet 9 inside moves by the water flowing in the armature 1 by the water flow to generate electricity. Since the movement of the float magnet 9 is based on the water flow below the surface of the water, the float magnet 9 moves steadily and the amount of power generation can be secured. Storage battery 1 with generated current
3 stores electricity and feeds back to the exciting coil 8 to magnetize the float magnet 9, so that the magnetic force can be maintained, and the decrease in power generation amount due to the decrease in magnetic force does not decrease with time.

Description

[Detailed description of the device]

[0001] The present invention relates to a wave generator installed on a shore and generating electric power by utilizing the energy of waves, particularly the flowing energy of water under water.

[0002]

[Prior art]

 Wave generators disclosed in Japanese Utility Model Publication Nos. 58-67980 and 58-67981 have been conventionally developed as generators that utilize wave energy.

In this wave generator, a cylindrical body in which a magnet is rolled is formed, and a coil is wound around the cylindrical body to generate electrons. The generated electrons are supported by a floating body that is fixed below the sea surface and floats above the waves, and the fact that the floating body oscillates due to the waves causes the magnet to roll inside the cylinder, and this rolling generates electricity.

[0004]

[Problems to be solved by the device]

Since the conventional wave power generator generates power by the waves generated on the water surface while floating on the water surface, sufficient power generation amount can be obtained on a day or place where the water surface is quiet and there is little waviness. It is not possible to do so, and it is not practical.

This is because the waves depend on the pressure difference and the shape of the shore, and even if the water flow under the surface of the water is strong, the wave height does not always increase depending on the conditions, and the rotation of the magnet This is because the movement cannot be performed sufficiently.

Further, the magnet used in the power generator has a problem that its magnetic force is easily reduced or deteriorated with time, and thereby the amount of power generation is also decreased with time.

The present invention has been made in view of such circumstances, and it is possible to obtain a sufficient amount of power generation at all times, and to supplement the decrease in the magnetic force of the magnet to reduce the amount of power generation over time. It is an object of the present invention to provide a wave generator having a structure that can be prevented.

[0009]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the wave generator of the present invention is formed in a structure in which water flows, and a cage that houses a plurality of hollow-shaped float magnets in a movable state and a cage. An armature consisting of a coil wound around a cage, a storage battery that stores the current generated by the armature, a power transmission device that converts the current generated by the armature into alternating current and outputs the alternating current, and the storage battery An exciter for feeding back the stored current to the armature to excite the float magnet.

[0010]

[Action]

 Since the armature in the above structure has a structure in which water flows, the float magnet moves inside as the water flows.

With these, current is excited in the armature, and power generation is performed. This power generation structure does not use waves on the surface of the water, but uses steady water flow and turbulence below the surface of the water, so power generation is not affected by wave height.

The power transmission device performs DC-AC conversion on the generated current and outputs it as commercial power.

On the other hand, the storage battery stores the generated current. This storage battery feeds back current to the armature periodically or intermittently. As a result, the float magnet with reduced magnetic force can be magnetized, and a decrease in power generation over time can be prevented.

[0014]

【Example】

 FIG. 1 shows an armature 1 used in an embodiment of the present invention.

The armature 1 is housed inside the fixing member 2 shown in FIG. The fixing member 2 is a lattice-shaped frame body in which steel materials are assembled in the vertical and horizontal directions, and water can flow inside through the lattice spaces.

The fixing member 2 is installed below the water surface such as the shore of a shore, and is always sunk from the water surface at a depth of 1 to 2 m.

For this reason, the steel material of the fixing member 2 is provided with a waterproof coating to impart corrosion resistance.

In FIG. 2, reference numeral 3 denotes a foundation block, which has a weight and shape that can be stably installed on the bottom of the water. The fixing member 2 is fixed on the base block 3 with bolts or the like.

Reference numeral 4 denotes a wire, which is stretched around an auxiliary block 5 installed around the base block 3 and a corner of the fixing member 2 so as to move the fixing member 2 carelessly. Is restrained and the outflow of the fixing member 2 due to the water flow is prevented.

The armature 1 is housed inside such a fixing member 2 in a free state, and can be displaced inside the fixing member 2 such as tilting and rocking.

As shown in FIG. 1, the armature 1 includes a cage 6 having a cylindrical outer shape, and a coil 7 wound around the outer circumference of the cage 6.

The cage 6 is made of steel or the like and has a cage shape so that the water flow freely flows inside.

The coil 7 is wound around the outer periphery of the body portion of the cage 6, and a float magnet 9 (see FIG. 4), which will be described later, moves inside the cage 6 to guide the coil 7. Electromotive force is generated, and this is led out of the armature 1 from the end portion 7a.

In the illustrated example, a three-core cable is used for this coil 7, the output end 7 a of which is drawn out and connected to a full-wave rectifier 11 which will be described later.

An exciting coil 8 made of a single-core cable is also wound around the armature 1. The terminal of the exciting coil 8 is connected to the coil 7 and serves as an exciting means for magnetizing the float magnet 9 by supplying a direct current to recover the magnetic force.

The exciting coil 8 also acts to determine the magnetic poles of the N and S poles of the armature 1 by being supplied with a direct current.

FIG. 3 shows the internal structure of the cage 6 of the armature 1. A plurality of float magnets 9 are housed inside the cage 6.

The storage is performed by inserting the guide cylinder 10 into the cage 6 and slidably inserting the float magnet 9 into the guide cylinder 10. The guide cylinder 10 is made of a non-magnetic material such as resin.

In this case, in the guide cylinder 10, water is circulated by knitting resin fibers in a mesh shape or forming a large number of small holes.

By inserting the float magnet 9 into the guide cylinder 10 made of this non-magnetic material, the float magnet 9 is separated from the inner surface of the cage 6, so that the magnetic force does not attract the cage to the cage and the float magnet 9 is not attracted. 9 free movements are possible.

In this case, one or more float magnets 9 are inserted into each guide cylinder 10.

The guide tube 10 is freely inserted into the cage 6 and is free to move. However, even if the guide tube 10 is inserted into the cage 6 in an engaged state via a hook or the like. Good.

In any case, since water flows inside the guide cylinder 10, the float magnet stone 9 can reciprocate inside the guide cylinder 10, that is, inside the cage 6 by the flowing water.

FIG. 4 shows a cross section of the float magnet 9. The float magnet 9 can be magnetized by kneading a rare earth iron magnet powder (66 wt% Fe, 33 wt% Nd, 1 wt% B) with a resin or rubber. Is molded into a hollow oval shape.

The hollow shape reduces the apparent specific gravity and increases the buoyancy.

The apparent specific gravity can be adjusted by adjusting the volume of the hollow portion. For example, when rolling in seawater, the apparent specific gravity is 3 to 4 g / cm ³ . Preferably.

This allows the armature 1 to easily move under the pressure of water such as a water stream, and an electromotive force is generated in the armature 1 by this movement.

After being molded, the float magnet 9 is magnetized using a magnetizing device, and is used for power generation in this magnetized state.

In the illustrated example, the magnetic pole is arranged in a two-divided structure of the S pole and the N pole, but a multipole arrangement in which the S pole and the N pole are alternately repeated may be used.

When a plurality of float magnets 9 each having a two-pole magnetic pole arrangement are inserted into the guide cylinder 10, the mutual attraction of the float magnets 9 can be prevented by making the stations face each other.

FIG. 5 shows the overall configuration of this embodiment.

A full-wave rectifier 11, a charge controller 12, and a storage battery 13 are connected in series to an output end 7 a of a coil 7 wound around a cage 6 of the armature 1.

The full-wave rectifier 11 rectifies the waveform of the current generated by the armature 1. The charging control device 12 is provided with an automatic constant voltage regulator for the DC current after the rectification and an overdischarge prevention device for the storage battery 13.

The storage battery 13 stores a predetermined amount of generated electric current.

A power transmission device is connected to the storage battery 13. The power transmission device includes an inverter 14 and a transformer 15. The inverter 14 converts the DC power stored in the storage battery 13 into AC of, for example, 50 Hz, and the transformer 15 further converts the voltage to a voltage for commercial use. , Output to commercial wire.

Reference numeral 16 is a protection relay, which has various relays such as an overcurrent relay, a ground fault overcurrent relay, a directional short-circuit relay, an overvoltage relay, an undervoltage relay, a frequency adjustment relay, and a reverse power relay. It can be converted into electric power suitable for use and output.

Reference numeral 17 is a relay switch for connecting to a commercial electric wire.

A feedback wiring 20 is branched and connected to the output side of the storage battery 13.

Further, the feedback wiring 20 is connected to the exciting coil 8 on the armature 1 side via a relay switch 21, a variable resistor 22 and a rectifier 23.

In such a connection structure, the direct current stored in the storage battery 13 is supplied to the exciting coil 8.

By this supply, the exciting coil 8 can excite the float magnet 9 in the armature 1. That is, the generator having this structure magnetizes the internal float magnet 9 by using the electric current generated by itself, and even if the magnetic force of the float magnet 9 becomes weak, the magnetization can restore the magnetic force. It is possible. Therefore, the magnetic force of the float magnet 9 can be maintained, and the magnetic force does not decrease with time, so that it is possible to prevent the power generation amount from decreasing with time.

The electric current may be supplied to the exciting coil 8 periodically or intermittently by operating a predetermined timer.

The variable resistor 22 in the feedback wiring 20 adjusts the voltage applied to the exciting coil 8, and the rectifier 23 prevents the reverse flow of current.

In the wave generator having the above structure, the float magnet 9 moves in the armature 1 when water such as water flow or tidal flow derived from the waves flows into the fixing member 2.

In addition to this, since the armature 1 also has a structure in which water flows, the float magnet 9 moves in the armature 1 due to the water flow.

For this reason, the float magnet 9 frequently moves in the armature 1, whereby a sufficient amount of power generation can be secured. Moreover, since these operations use the water flow below the surface of the water, the operations can be performed steadily, and thus a predetermined amount of power generation can be maintained.

In addition, as described above, the generated current is stored and used to restore the magnetic force of the float magnet 9 as necessary, so that the magnetic force of the float magnet 9 does not decrease with time, and the magnetic force is reduced. It is also possible to prevent a decrease in the amount of generated power.

FIG. 6 shows another embodiment of the present invention, in which the same elements as those in the above embodiment are designated by the same reference numerals and correspond to each other. In this embodiment, the float magnets 9 are randomly stored in the cage 6 of the armature 1.

In this embodiment, about 300 float magnets 9 having a volume of about 100 cm ³ are housed in a cage 6 having a diameter of 60 cm and a length of 1,5 m.

Each float magnet 9 freely moves inside the cage 6 due to the displacement of the armature 1 caused by the flow of water into the fixing member 2 and the pressure of the water flowing in the armature 1. Electromotive force is generated in the armature 1 by the movement.

Therefore, similarly to the above, it is possible to secure a sufficient amount of power generation. In this embodiment, since the float magnets 9 are not separated from each other, they are attracted to each other, but the magnetic force in the cage 6 changes due to the movement of the attracted float magnets 9 as a whole. Induced electromotive force is generated.

Therefore, even if the float magnet 9 is attracted, a predetermined amount of power can be generated.

The present invention is not limited to the above embodiments, and various modifications can be made. For example, a plurality of armatures may be connected and housed in a fixing member. The material and shape may be changed.

[0064]

[Effect of device]

 The wave generator of the present invention is a power generator using a regular water flow because the armature is displaced by the water flow below the water surface to move the float magnet, and the float magnet itself is moved by the water flow to generate power. Therefore, a predetermined amount of power generation can be secured. Moreover, since the magnetic force of the float magnet is recovered by using the generated current, the magnetic force does not decrease with time, and the amount of power generation can be secured for a long time.

[0065]

[Brief description of drawings]

FIG. 1 is a perspective view of an armature according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an installed state of a fixing member.

FIG. 3 is a sectional view of an armature.

FIG. 4 is a cross-sectional view showing an example of a float magnet.

FIG. 5 is a front view of the overall configuration.

FIG. 6 is a sectional view of an armature according to another embodiment.

[Explanation of symbols]

 1 Armature 2 Fixing member 6 Cage 7 Coil 8 Excitation coil 9 Float magnet 13 Storage battery

Claims (1)

[Scope of utility model registration request] 1. An armature formed of a structure in which water flows and accommodating a plurality of hollow-shaped float magnets in a movable state, and an armature composed of a coil wound around the cage. A storage battery that stores a current generated by the armature, a power transmission device that converts the current generated by the armature into an alternating current, and outputs the current stored in the storage battery to the armature by feedback. A wave generator comprising: an exciting device for exciting a float magnet.