JPH06280733A - Electromagnetic induction type wave activated power generating set - Google Patents

Abstract

PURPOSE:To improve generating efficiency by generating a vertical motion between a magnet of a shaft and a coil of tubular unit in a generator, and generating induced electromotive force in the coil, according to making vertical motion of a drifting float in accordance with wave. CONSTITUTION:In a power generating set, a drifting float 1 is arranged on the surface of the sea, and also a tubular unit 12 is arranged in the sea by a balance float 13 and a balance weight 14. In accordance with a vertical motion of waves, the drifting float 1 makes a vertical motion. According to the above, a relative vertical motion is generated between a magnet 3 of a shaft 2 and a coil 7 of the tubular unit 12 in a generator A, and also induced electromotive force is generated in the coil 7. On the other hand, the generated electromotive force is supplied to a load through an output terminal or to a signal lamp 18 partly of the load, to light it. In this way, energy by the vertical motion of waves is directly converted into electric energy by the magnet 3 and the coil 7, and a mechanical loss is decreased to efficiently generate power.

Description

Detailed Description of the Invention

[Object of the Invention] In the present day, when global warming, global environment destruction, and depletion of energy resources are major problems, power generation is performed by utilizing the power of waves, which is clean natural energy. The purpose is to develop a high-efficiency power generator that will help to prevent environmental damage and save resources.

[Field of Industrial Application] The present invention is applicable not only to a power source for rescue buoys and navigation buoys, but also for the control of fishing diseases, fishing lights, power sources for electric shielding devices and remote islands, and electricity for island countries in the fishing industry. It is used as a source, aquaculture industry, or a wave breaking device for port facilities.

[Prior Art] As a power generator using natural energy, there are various devices such as a solar cell, a wind turbine, a wind power generator, a wave power generator, and a tidal current generator. These sources of sunlight, solar hot air, waves, and tidal currents are rare and dissipative, and their fluctuation range is large. Therefore, it was very difficult to industrially utilize these energies. However, gradually but with many years of efforts, in recent years, the economy has finally entered the economic base. Especially regarding the wave power, it is a device that sends seawater, but the "wave power pump" already filed (Patent Application 60-959)
63) somehow started to work as a water pump for purifying the ocean.

In wave power generation, an air turbine system or a multi-stage magnet type power generator utilizing vertical movement of waves (Patent Publication 62-2)
8316) and the like. The former uses air as the working medium and therefore has low power generation efficiency. Next, the latter is a part of a reciprocating generator that uses a magnet and a coil to make a relative reciprocating motion to generate electricity, without using a working medium, but because the gap between the magnetic poles and the gap between the coils are the same, Since the currents generated by the two cancel each other out in the coil, the output is low and the power generation efficiency tends to decrease.

[Problems to be Solved by the Invention] In the present invention, in a multi-stage magnet type power generator (Patent Publication 62-28316) that utilizes the vertical movement of the above-mentioned wave, the current generated by the relative motion of the magnet and the coil. Cancel each other out inside the coil,
There was a problem that the power generation output decreased.

[Means for Solving the Problems] (Means and Actions for Solving the Problems) [0006] The present invention relates to the above-mentioned problems, and is provided in an axial direction in a generator part that generates electric power by relative reciprocating motion of a magnet and a coil. When the distance between the coils corresponding to the distance between the magnetic poles of the magnets is subdivided in the axial direction and the magnets are reciprocated in the subdivided coils, voltage and current are generated in each coil by electromagnetic induction. However, since the position of the magnetic pole changes each time, the strength, direction, etc. of the magnetic force lines applied to each coil change, and the voltage and current generated in each coil and the direction of the current change. If the direction of the current has changed, if the diodes connected in advance are used for rectification and then integrated as a DC power source, the power generated in the coil is not canceled and a large output can be obtained at the output terminal.

[Embodiment] Referring to the accompanying drawings,
A preferred embodiment of the present invention will be described below. 1 and 2
The generators A and B used in the power generators described below are shown respectively. In FIG. 1, reference numeral 2 is a shaft, and a plurality of annular magnets 3 are fitted to the shaft 2 with an annular yoke 4 interposed therebetween. The guide pipe 5 is provided on the outer side thereof. There is some clearance between the guide pipe, the annular magnet and the annular yoke, and both of them can move relative to each other. An annular coil 7 is wound around the outside of the guide pipe 5. These coils 7 are subdivided in the axial direction between the magnetic poles of the annular magnet 3 described above.

The generator B shown in FIG. 2 is different only in that the mounting positions of the coil 7 and the annular magnet 3 and the annular yoke 4 are interchanged. FIG. 3 shows an example of the sequence of the reciprocating generator in FIG. The coil 7 is subdivided with respect to the distance between the magnetic poles of the annular magnets fitted to the shaft 2. After being connected in series or in parallel so that the directions of the electromotive forces induced in the subdivided coils are the same, they are rectified by a diode and the power is supplied to the output terminal.

In the generators A and B having the above-described structure, the reciprocating motion of the shaft 2, for example, the magnetic field lines emitted from the annular magnet due to the vertical motion of the wave causes the induced electromotive force in the coil 7 in the direction determined by the right hand side of the Fleming. Occurs. The electromotive force induced in each of the coils 7 differs depending on the direction of the magnetic force lines, the distance between the magnetic force lines, the direction of the movement direction, etc. However, since they are rectified by the diode provided in advance, the induced electromotive force appearing at their output terminals The electric power is supplied to the load as DC electric power flowing in one direction.

FIGS. 4 and 5 show examples in which the power generator of the present invention is constructed by using the generators A and B described in FIGS. 1 and 2, respectively. This is the corresponding generator A shown in FIGS.
The shaft 2 of B is fixed to the floating body 1 via the support frame 11, the balance floating body 13 is provided in the middle outer circumference of the cylindrical body 12, and the balance weight 14 is fixed to the lower portion thereof. The power generator shown in FIG. 4 is also provided with means for restricting unpredictable sway generated in the floating body 1, for example, means including a chain 15 and an anchor 16, a spring 17 and the like. Further, an indicator lamp (buoy lamp) 18 is provided on the shaft 2 above the floating body 1, and the indicator lamp 18 is connected to the output terminal of the above-mentioned coil and constitutes a part of the load.

Next, the operation of the power generator shown in FIGS. 4 and 5 will be described below. Now, the power generator sets the drifting floating body 1 on the surface of the sea, and the balance floating body 13 and the balance weight 14 cause the cylindrical body 12 to move substantially vertically and the top thereof.
It is assumed to be placed under the sea so that it is slightly above the upper surface of. In this state, even if a wave comes to the cylindrical body 12, the cylindrical body 12 is kept substantially vertical by the interaction of the balance floating body 13 and the balance weight 14. Even in such a state, in order to keep the vertical movement of the tubular body 12 small,
To increase the resistance of water by increasing the outer diameter of the balance weight 14,
The mass may be increased to increase the inertial force, or in some cases, it may be fixed to the seabed. On the other hand, drifting floats respond sensitively to the up and down movement of waves.

Therefore, relative vertical reciprocating motion is generated between the magnet 3 of the shaft 2 and the coil 7 in the cylindrical body 12, and the induced electromotive force is generated in the coil 7 as described above. Then, this electromotive force is supplied to the load through the output terminal or to the indicator lamp 18 which is a part of the load, and the indicator lamp 18 is turned on.
In this case, since the point of action of the force generated by the power generation coincides with the axis 2 and the center line of the tubular body 12, the relative vertical movement of both due to the vertical movement of the wave can be smoothly performed. Moreover, since the energy due to the vertical movement of the wave can be directly converted into electric energy by the magnet 3 and the coil 7, there is little mechanical loss, so that power can be efficiently generated.

Between the tubular body 12 and the floating body 1 of the power generator of FIGS. 4 and 5, means for reducing friction during relative vertical movement between them, for example, removal of seaweed, shellfish, etc. Of course, it is good to provide a ski-like sliding mechanism and rollers for the device, and such a means can prevent relative vertical motion loss and improve power generation efficiency.

[Effects of the Invention] As is apparent from the above description, according to the present invention, the following excellent effects are exhibited. First of all, the apparatus up to the present time had a very poor power generation efficiency, but the present invention significantly improves the efficiency.
Therefore, the practical use of the wave power generation device, which has been considered impossible until now, will greatly contribute to humanity and the industrial world. Since this device does not require fuel such as an internal combustion engine or hydraulic oil such as a hydraulic device, it does not deteriorate the global environment.

[Brief description of drawings]

<Figure 1> Longitudinal section of A type reciprocating generator <Figure 2> Longitudinal section of B type reciprocating generator <Figure 3> Example of sequence of A type reciprocating generator <Figure 4> A type reciprocating generator Electromagnetic induction type wave power generation device using generator <Fig. 5> Electromagnetic induction type wave power generation device using B type reciprocating power generator [Explanation of reference numerals] 1 ... floating body 2 ... shaft 3 ... magnet 4
… Yoke 5… Guide pipe 6… Bearing 7… Coil 8
… Coil cover 9… Cylinder 10… Casing 11
... Support frame 12 ... Cylindrical body 13 ... Balance floating body 1
4 ... Balance weight 14 15 ... Chain 16 ... Anchor 17 ... Spring 1
8 ... Indicator light

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[Procedure amendment]

[Submission date] June 11, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

[Embodiment] Referring to the accompanying drawings,
A preferred embodiment of the present invention will be described below. 1 and 2
The generators A and B used in the power generators described below are shown respectively. In FIG. 1, reference numeral 2 is a shaft, and a plurality of annular magnets 3 are fitted to the shaft 2 with an annular yoke 4 interposed therebetween. The guide pipe 5 is provided on the outer side thereof. There is some clearance between the guide pipe 5 , the annular magnet and the annular yoke described above, and the magnet cover 19 is provided outside the annular magnet and the annular yoke.
Etc. are also provided so that the magnet cover 19 and the guide pipe 5 can move relative to each other. An annular coil 7 is wound around the outside of the guide pipe 5. These coils 7 are subdivided in the axial direction between the magnetic poles of the annular magnet 3 described above.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

In the generators A and B having the above-described structure, the reciprocating motion of the shaft 2, for example, the magnetic field lines emitted from the annular magnet due to the vertical motion of the wave causes the induced electromotive force in the coil 7 in the direction determined by the right hand side of the Fleming. Occurs. Electromotive force induced in each of the coil 7 the distance direction and the magnetic field lines of the magnetic field lines, different respectively according to the orientation or the like of the direction of motion, but opposite in the inner coil
When a current is going to flow in the direction, the coil is subdivided.
And that it can be rectified by the diode provided in advance.
The coil that flows in the opposite direction is cut
The separated electromotive force is immediately rectified, and the induced electromotive force appearing at the output terminal is supplied to the load as DC power flowing in one direction. That is, the more subdivision of the coil, the more
The directions of the currents are less likely to cancel each other out inside the ile.
It

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

Therefore, in the case of FIG. 4 , relative vertical reciprocation occurs between the magnet 3 of the shaft 2 and the coil 7 in the cylindrical body 12, and the coil 7 is moved in the above-described manner. Induced electromotive force is generated. Then, this electromotive force is supplied to the load through the output terminal or to the indicator lamp 18 which is a part of the load, and the indicator lamp 18 is turned on. The point of application of force due to this power generation and the shaft 2, that the center line of the cylindrical body 12 coincide
And because it is a vertical operation, the relative vertical movement of both due to the vertical movement of the wave can be made smooth, and the wear on the sliding part
Relatively few. Moreover, child convert energy by vertical motion of waves to electric energy directly by the magnet 3 and the coil 7
From, power can be generated efficiently mechanical losses rather small.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] Explanation of code

[Correction method] Change

[Contents of correction] [Explanation of symbols] 1 ... floating body 2 ... shaft 3 ... magnet 4 ... yoke 5 ... guide pipe 6 ... bearing 7 ... coil 8 ... coil cover 9 ... cylinder 10 ... casing 11 ... support frame 12 ... Cylindrical body 13 ... Balance floating body 14 ...
Balance weight 15 ... Chain 16 ... Anchor 17 ...
Spring 18 Indicator light 19 ... Magnet cover

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

Claims (1)

[Claims] [Claim 1] A shaft in which one of a magnet and a coil is circumferentially provided in multiple stages along the longitudinal direction, and the other of which is one of the magnets and coils is provided in multiple stages along the longitudinal direction. The coil, in which the shaft is arranged and which corresponds to the interval between the magnetic poles of the magnet, is characterized in that it is subdivided in the axial direction. , The other one is provided in a cylindrical body that is substantially vertical in water and is stationary, so that the drifting floating body is moved by the rocking of the wave, while it is between the cylindrical body that is substantially vertical and stationary in water. An electromagnetic induction wave power generation device that generates relative reciprocating motion and guides this operation to the relative reciprocating motion of the magnet and coil to generate electricity.