GENERATOR WITH IMPROVED GENERATION EFFICIENCY AND ROTATIONAL FORCE

[0001] The present invention relates to a generator that can produce electric power using water power, wave power or wind power, and more specially to a generator with improved generation efficiency and rotational force, in which coil plates where horizontally wound generation coils are radially arranged at predetermined intervals and magnet plates where a plurality of magnets are radially arranged at predetermined intervals are sequentially arrayed on a rotating shaft, and a plurality of induction coils and electromotive coils installed on inner and outer cylinders proximate to the opposed ends of the magnets are separately arranged on the coil plates, so as to obtain improved generation efficiency as coil plates and magnet plates rotate in mutually opposing directions, as well as the rotational force is increased further by increasing the repulsive force between coil plates and magnet plates.

[0002] A generator is an apparatus which converts dynamic energy into electric energy. It gets necessary rotational power from water power, wave power, or a power means such as a steam or diesel engine, and rotates cylindrical magnets using this power. In such a generator, when the magnets rotate, electric charge is induced in the coil wound on the iron core located around the magnet to generate electric current.

[0003] As common generators we can easily see around us, there are generators for bicycle headlights, and vehicle generators also operate on the same principle. The major difference between the two generators is that the former has a permanent magnet in the coil and the latter has an electromagnet (rotor coil), not a permanent magnet, which is wound.

[0004] However, conventional generators as mentioned above should rotate a magnet having a comparatively heavy weight. Because of that, they have a problem that they require an excessive starting power or rotational power.

[0005] Also, in a generator of a conventional method, the iron core installed for induction activation generates an attractive force that attracts other rotating magnets in the center. Because of that, it requires an excessive motor power, so consequently energy consumption is very high. Not only that, because attractive force acts as rotational resistance, it leads to unnecessarily large consumption of rotational power for rotating the magnet.

[0006] In particular, the conventional cylindrical magnet and iron core cannot but adopt a tetrapolar induction method due to the constraint of installation space. Accordingly, high-speed rotation is needed to produce electricity of necessary capacity and due to that, it has a problem that economic efficiency is considerably low.

[0007] When using a generator, electricity is produced by rotating a magnet by force using the rotational power of an extra drive motor, and electricity produced from the generator should be converted into electric current of a desirable voltage through an electric transformer, etc. Because of this, a considerable quantity of electric energy is lost at the drive motor and generator. A generation system of such a method is known to have an energy efficiency of about 35%. Therefore, it is considerably inefficient in terms of energy use and low in economic efficiency.

[0008] To solve such problems, Korean Patent Application No. 2008-067965 is filed by the applicant of the present invention. The generator disclosed in the above patent application comprises upper and lower fixed plates of non-magnet arranged in separation up and down, a plurality of magnets radially separately arranged on the fixed plate, and rotating discs arranged between the fixed plates. On the rotating disc are radially arranged horizontally wound coil units. The magnet on the lower fixed plate located below the rotating disc induces electric charge to generate electric current, and the magnet on the upper fixed plate located above provides alternatingly attractive force and repulsive force to the coil unit in the direction of rotation.

[0009] Here, electricity is produced through relative rotation of the magnet and the coil unit, so no-load rotation without attractive force being generated between each other occurs. Therefore, power productivity is excellent even with low-speed rotation. In addition, since attractive force and repulsive force provided by the centrifugal force of the rotating disc and the magnet are added to minimize the load loss of the rotating disc, economic efficiency is excellent and the generation efficiency is high.

[0010] However, the generator as mentioned above is of such a form that only the coil plate is rotated while the magnet plate with the magnets separately arranged is fixed. Therefore, it has a problem in that if wind power or water power is weak, sufficient generation capacity cannot be obtained and the generation efficiency is low.

[0011] Moreover, if various load elements that consume electric energy are connected to a generator as mentioned above, the generation efficiency is lowered by the load elements applied to the generator. Therefore, a generator having much higher generation efficiency and rotation performance is urgently needed through structural improvement of the generator as mentioned above.

[0012] Accordingly, to solve the above problems, it is an object of the present invention to provide a generator in which a plurality of magnet plates and separately-arranged coil plates are constructed in such a way that they can rotate in mutually opposing directions, and these magnet plates and coil plates are continuously and sequentially arranged on a rotating shaft, and a plurality of induction coils and electromotive coils installed on inner and outer cylinders proximate to the opposed ends of magnets arranged on the magnet plates are separately arranged on the coil plates, so that an increased rotation velocity can be obtained through the magnet plates and coil plates rotating in mutually opposing directions and thereby a high quantity of generation can be obtained, therefore, it is possible to provide a generator in which generation efficiency and rotational force are improved by converting electric power produced through induction coils into direct current power and transmitting it into electromotive coils, and the rotational force for the magnet plates and coil plates is increased by using repulsive force between electromotive coils and magnets, in order to properly solve or alleviate various problems that conventional generators have.

[0013] In order to accomplish the foregoing object, according to the present invention, there is provided a generator comprising magnet plates and coil plates which are provided with a plurality of blades that are protruded inclined in mutually opposing directions on the outer circumference thereof, so that the magnet plates and the coil plates are rotated simultaneously in mutually opposing directions, wherein on the coil plates are formed in protrusion an inner cylinder and outer cylinder at locations separated from both ends of the magnets, and on the outer circumference of the inner cylinder are installed induction coils arranged at predetermined intervals toward the inside end of the magnets, and on the inner circumference of the outer cylinder are installed electromotive coils arranged at predetermined intervals toward the outside end of the magnets, wherein the induction coils and electromotive coils are connected each other by a direct current converting circuit.

[0014] According to the present invention, it is possible to obtain a further increased quantity of generation by means of the magnet plates and coil plates that rotate in mutually opposing directions even in the case that water power or wind power used in generation is weak. In addition, even if the energy supply source such as wind power, wave power or water power acts continuously or intermittently, the rotational force between the magnet plates and coil plates is increased greatly by the electromotive coils that confer repulsive force on the magnets to make it possible to produce much higher generation energy, so it is very economical.

[0019] Terms or words used in the specification and claims should not be construed as limited to a lexical meaning, and should be understood as appropriate notions by the inventor based on that he/she is able to define terms to describe his/her invention in the best way to be seen by others. Therefore, embodiments and drawings described herein are simply exemplary and not exhaustive, and it will be understood that various modifications and equivalents may be made to take the place of the embodiments.

[0020] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

[0021] FIG. 1 is an exploded perspective view showing a magnet plate and coil plate of a generator according to the present invention, FIG. 2 is a sectional view showing the assembled state of the generator according to the present invention, and FIG. 3 is an enlarged sectional view showing major parts of the generator according to the present invention.

[0022] As shown in the drawings, in the generator according to the present invention, if the magnet plates 10 and 10′ and coil plates 20 and 20′ that are arranged in separation from each other rotate by external force, electric charge is induced from a plurality of magnets 11 and 11′ radially arranged at predetermined intervals on the magnets plates 10 and 10′ in the generation coils 21 and 21′ radially arranged at predetermined intervals on the coil plates 20 and 20′. Accordingly, electricity is generated from generation coils 21 and 21′ of serially-connected shape, so it is possible to obtain desired electric power.

[0023] At this time, according as the magnet plates 10 and 10′ or coil plates 20 and 20′ rotate, the polarity of electric charge acting on the generation coils 21 and 21′ is repetitively changed to generate electricity.

[0024] In the present invention, the magnet plates 10 and 10′ and coil plates 20 and 20′ are constructed in such a way that they rotate in mutually opposing directions. For this, both of the magnet plates 10 and 10′ are fixed on a single rotating shaft 40 both ends of which are mounted rotatably on a main body of the generator, and the coil plates 20 and 20′ are rotatably mounted on the rotating shaft 40 via bearings 41.

[0025] On the whole of the outer circumference of these magnet plates 10 and 10′ and coil plates 20 and 20′ are formed in protrusion respectively a plurality of blades 12 and 22 that are inclined in mutually opposing directions.

[0026] At this time, the blades 12 and 22 may be formed in such a way that they protrude monolithically from the outer circumference of the magnet plates 10 and 10′ and coil plates 20 and 20′, or may be attached in a state inclined at a predetermined angle by using joining means such as a hinge or bracket. Also, these blades may be formed on the outer circumference or formed transversely in protrusion on the inner circumference.

[0027] Also, in this embodiment is illustrated a structure in which the magnet plates 10 and 10′ are fixed on the rotating shaft 40, and the coil plates 20 and 20′ are rotatably mounted on the rotating shaft 40 via bearings 41 for relative rotation. But in another embodiment, it is also possible to adopt a structure in which the magnet plates 10 and 10′ are rotatably mounted on the rotating shaft 40 via bearings 41, and the coil plates 20 and 20′ are fixed on the rotating shaft 40 for relative rotation.

[0028] If external force such as water power, wind power or wave power acts on the blades 12 and 22 of the magnet plates 10 and 10′ and coil plates 20 and 20′, the magnet plates 10 and 10′ and coil plates 20 and 20′ are rotated by external force acting on the blades 12 and 22 which are arranged inclined at a predetermined angle in mutually opposing directions as mentioned above. At this time, the blades 12 and 22 are arranged inclined in mutually opposing directions, so the magnet plates 10 and 10′ and coil plates 20 and 20′ are rotated in mutually opposing directions.

[0029] Accordingly, even if a relatively weak water power, wind power or wave power is applied, the magnet plates 11 and 11′ and induction coils 25 rotating in mutually opposing directions have the quantity of rotation doubled. Therefore, the electricity generation is greatly increased in proportion to the doubled quantity of rotation.

[0030] Also, on the coil plates 20 and 20′ are formed in protrusion respectively an inner cylinder 23 and outer cylinder 24 at the locations separated at a predetermined interval in a radius direction from both ends of the magnets 11 and 11′. On the outer circumference of the inner cylinder 23 are correspondingly arranged the induction coils 25 toward the inside end of the magnets 11 and 11′, and on the inner circumference of the outer cylinder 24 are correspondingly arranged the electromotive coils 26 toward the outside end of the magnets 11 and 11′.

[0031] At this time, since the induction coils 25 and electromotive coils 26 are mutually connected through a direct current converting circuit 30, the current generated from the induction coils 25 is converted into a form of direct current as it passes through the direct current converting circuit 30 before it is supplied to the electromotive coils 26.

[0032] Accordingly, when the magnet plates 10 and 10′ and coil plates 20 and 20′ are rotated by external force such as water power, wind power or wave power, electric charge is induced from magnets 11 and 11′ in generation coils 21 and 21′ to cause generation of electricity. At the same time, extra generation is made partially also through the induction coils 25. Since the electricity produced through the induction coils 25 is converted into direct current as it passes through the direct current converting circuit 30, the polarity of the electromotive coils 26 is converted repetitively by a switching action so as to be equal to the polarity of the magnets 11 and 11′. After all, since rotational reaction is generated continuously on the magnet plates 10 and 10′ and coil plates 20 and 20′ due to repulsive force generated by the change of these polarities, it is possible to further increase the rotational force thereof.

[0033] Therefore, even if a load acts on the magnet plates 10 and 10′ and coil plates 20 and 20′ by various load elements connected to the generator, it is possible to obtain a maximum generation efficiency by increasing the rotational force of the magnet plates 10 and 10′ and coil plates 20 and 20′ by repulsive force generated from the electromotive coils 26.

[0034] As described above, the generator according to the present invention can be effectively used also in an area where wind is weak or wind blows intermittently, can use water power flowing along a brook, small stream or sewage pipe or water supply pipe, and can be installed on the rooftop of a common house to be used for the purpose of supplying electric power indoors.

[0035] Although the present invention has been described in connection with the exemplary embodiments illustrated in the drawings, it is only illustrative. It will be understood by those skilled in the art that various modifications and equivalents can be made to the present invention. Therefore, the true technical scope of the present invention should be defined by the appended claims.