Planetary generator

Abstract

Power generators play an increasingly important role in converting kinetic energy into electrical energy. However, due to their simple design and effectiveness, generators with coil cores have disadvantages such as losses due to eddy currents, hysteresis, weight and starting torque. The present invention of the planetary generator (100) overcomes these disadvantages and retains the advantages by repeatedly guiding at least one permanent magnet (6) through at least one coil (5). This coil (5) encloses the permanent magnet (6), whereby it assumes the function of a conventional coil core, but without the associated disadvantages. The inventive design enables the inner ring (1) to rotate about its axis of rotation (Y), with the roller (3) transmitting this movement to the outer ring (2) and the permanent magnet (6) attached thereto.The coil (5) is fixedly mounted on the center ring (4) and encloses the outer ring (2) and the permanent magnet (6) mounted thereon without touching them. The center ring (4) also holds the rotation axes (X) of the rollers (3) in their designated position.

Description

[0001] The present invention of the planetary generator relates to an electrical machine that converts mechanical work into electrical work and is partially constructed like a planetary gear.

[0002] A power generator is a device or machine that converts mechanical energy into electrical energy. Power generators operate on the principle of electromagnetic induction, which states that a change in the magnetic flux through a loop of conductors creates an electrical voltage in that loop. Typically, a power generator consists of a moving part, the rotor, and a fixed part, the stator, which contains coils of wire. As the moving part of the power generator rotates, it creates a changing magnetic field that cuts through the electrical conductors in the coils, thus generating an electrical voltage. This voltage can then be used to power electrical devices or to feed electrical energy into a power grid.Power generators are found in a wide variety of applications, from small portable units for use in RVs or on construction sites to large stationary power generators in power plants that generate much of the electrical energy in an electrical grid. Coil cores are often placed within the coils to concentrate and direct the magnetic flux. This is done to increase the efficiency of electromagnetic induction. By placing the coil core within the coil, the magnetic field is strengthened and focused, which in turn improves the induction of electrical energy in the coils. The coil core provides a path of low magnetic resistance, facilitating the flow of the magnetic field and thus increasing the efficiency of the power generator.

[0003] The disadvantages of using coil cores are losses due to eddy currents, hysteresis, and weight. Furthermore, the cogging torque caused by the coil cores is particularly disruptive for power generators.

[0004] It is therefore the aim of the present invention to obtain the useful effect of the coil cores without using coil cores.

[0005] The disadvantages known from the prior art are overcome by the planetary generator having all the features of claim 1. Further advantageous embodiments of the invention are specified in the dependent claims.

[0006] The planetary generator described here consists of an outer ring and an inner ring, between which at least one roller is located. Typically, however, three rollers are arranged rotationally symmetrically. The rotational movement of the inner ring is transferred to the outer ring and vice versa, as the outer ring and inner ring are coupled to the rollers in a force-fitting, form-fitting, or frictional manner. The axes of rotation of the rollers are stationary. On at least one of these axes of rotation, another ring, referred to as the center ring, is attached, which is also stationary. On this center ring, at least one coil is attached, which surrounds the outer ring but does not touch it. In addition, at least one permanent magnet is attached to the outer ring and aligned so that the north pole or south pole points tangentially to the outer ring and, together with the rotational movement of the outer ring, is moved through the coil again with each revolution.This ensures that the maximum of the magnetic field moves from the permanent magnet itself to the place of a coil core, namely within the coil, and takes over the function of a coil core.

[0007] According to a further embodiment of the invention, the coil can also be directed inward and surrounds the inner ring but does not touch it. In this case, at least one permanent magnet is mounted on the inner ring and points tangentially to the inner ring.

[0008] According to a further embodiment of the invention, it can also be provided that at least one coil encompasses the outer ring and / or at least one coil encompasses the inner ring, but the outer ring or the inner ring are not touched by the coil.

[0009] It can also be provided that the rotational axis of the inner ring is stationary and the coupling to the outer ring is achieved by magnetic force. The rollers serve to support and guide the outer ring, so that at least one permanent magnet is moved by at least one coil with the rotation of the outer ring.

[0010] According to a further embodiment, it can also be provided that at least one rotor blade or vane is mounted on the inner ring or the outer ring, so that the mechanical work comes from a gas or a fluid such as wind or water and thus drives the inner ring or the outer ring.

[0011] The present invention can also be used as a drive device by reversing the operating principle. In this case, the coil is supplied with an electrical voltage, creating a magnetic field that sets the permanent magnet and the outer ring in motion.

[0012] Further features, details, and advantages are evident from the following figure description. They show: Fig. 1a A schematic representation of the planetary generator according to the invention in plan view Fig. 1b A schematic representation of the planetary generator according to the invention in section and with a view of the components behind it Fig. 1a shows a plan view of the planetary generator 100 according to the invention. If the inner ring 1 is rotated about its axis of rotation Y, the rotational movement is transferred to the rollers 3 and further to the outer ring 2 and the permanent magnets 6 arranged thereon. The axes of rotation X of the rollers 3 and the center ring 4 arranged thereon are stationary. The center ring 4 holds the rollers 3 in their respective positions. Coils 5 are arranged on the center ring; these coils are also stationary and surround the outer ring 2 and the permanent magnets 6 arranged thereon, but do not touch them. This interaction causes the permanent magnets 6 to be repeatedly guided through the coils 5 in a circle. With each passage of the permanent magnets 6 through each of the arranged coils, a change in the magnetic flux within the respective coil 5 occurs, thereby inducing an alternating voltage that can be used. Fig.Figure 1b shows a cross-sectional view of the planetary generator 100 according to the invention and the components located behind it. The schematic diagram shows that the inner ring 1 is frictionally and positively coupled to the outer ring 2 via the roller 3 and transmits a rotational movement from the inner ring 1 to the outer ring 2 and the permanent magnet 6 arranged thereon. The roller 3 is rotatably mounted on the rotational axis X. The rotational axis X is stationary, and thus also the components arranged thereon, the center ring 4 and the coil 5 with the coil body 7. With the previously induced rotational movement of the outer ring 2, the permanent magnet 6 also moves through the coil 5 and the coil body 7. The air gap 8 ensures smooth functioning. List of reference symbols: X rotation axis roller Y axis of rotation inner ring 1 inner ring 2 outer ring 3 rolls 4 Middle ring 5 coil 6 permanent magnet 7 coil bodies 8 Air gap 100 Planetary generator

Claims

[1] Planetary generator, comprising: an electrical machine that converts mechanical work into electrical work characterized by , that at least one permanent magnet is repeatedly moved in a circle by at least one coil. [2] Planetary generator according to claim 1, characterized by that the inner ring is coupled to the outer ring. [3] Planetary generator according to claim 1 or 2, characterized by that the inner ring is coupled to the outer ring via at least one roller in a force-locking, form-locking or frictional manner. [4] Planetary generator according to one of the preceding claims, characterized by that at least one coil is arranged in a stationary manner and simultaneously surrounds the outer ring, but does not touch it. The coil can be connected to the stationary rotation axis of the roller. [5] Planetary generator according to one of the preceding claims, characterized bythat at least one permanent magnet is mounted on the outer ring, provided that at least one coil also surrounds the outer ring. [6] Planetary generator according to one of the preceding claims, characterized by that at least one permanent magnet can also be mounted on the inner ring, with at least one coil also enclosing the inner ring. [7] Planetary generator according to one of the preceding claims, characterized by that at least one rotor blade or vane can be mounted on the inner ring or the outer ring so that the mechanical work can be transferred from a gas or a fluid to the inner ring or the outer ring. [8] Planetary generator according to one of the preceding claims, characterized by that the operating principle is reversed and the planetary generator in question is used as the drive means.

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