Levitation device

Abstract

The objective is to provide a levitation device that allows control over the rotation direction and speed of a levitating body suspended in the air by magnetic repulsion, as well as its stationary state. [Solution] The levitation device comprises a levitation device that generates magnetic force and a levitating body that is lifted by the levitation device, wherein the levitating body has magnetic poles in the vertical direction and a balancer for controlling its rotation or stationary state.

Description

Technical Field

[0001] The present invention relates to a levitation device that levitates a levitating body in the air using magnetic force, and particularly to a levitation device that can be controlled to rotate or stop while the levitating body is levitating in the air.

Background Art

[0002] Devices that levitate an object (levitating body) in the air using the repulsive force of magnetic force have been proposed. For example, Patent Document 1 discloses an airborne levitation device, and Patent Document 2 discloses an airborne levitation device. As disclosed in these publications, when an object is levitated in the air by the repulsive force of magnetic force, the object levitates to a predetermined height due to the balance between the gravitational force of the object and the repulsive force of magnetic force. In that case, a phenomenon occurs in which the levitated object rotates naturally. So far, there has been no example of investigating the cause of why the levitated object rotates naturally. Rather, both Patent Document 1 and 2 attempt to stabilize the levitation state of the object by this free rotation.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a levitation device capable of controlling the rotation direction, speed, and stationary state of a levitating body levitated in the air by the repulsive force of magnetic force.

Means for Solving the Problems

[0005] The levitation device according to the present invention comprises a levitation device that generates magnetic force and a levitation body that is levitated by the levitation device, wherein the levitation body has magnetic poles in the vertical direction and a balancer for controlling its rotation or stationary state.

[0006] Due to the repulsive force of the magnetic field generated by the magnetic device, the levitating object has a north pole and a south pole in the vertical direction, and magnetic field lines are formed around it. Research by the inventors revealed that a discrepancy occurs between the center line of the vertical magnetic flux formed by the levitating body and the center line of gravity of the levitating body, causing the levitating body to rotate spontaneously. Therefore, in this invention, the levitation body can be kept stationary by attaching a balancer so that the vertical center of gravity of the levitation body coincides with the vertical center of the magnetic flux formed on the levitation body. Conversely, if a predetermined misalignment is created between the center of gravity and the center line of the magnetic flux, it will rotate naturally.

[0007] In the present invention, the device comprises a magnetic force device that generates magnetic force and a levitating body that is levitated by the magnetic force device, wherein the levitating body has magnetic poles in the vertical direction, and the magnetic force device has a plurality of magnets or ring-shaped magnets arranged concentrically to levitate the levitating body, and may also have a coil to control the state of the magnetic field lines formed by the plurality of magnets or ring-shaped magnets. The magnets mentioned above can be either permanent magnets or electromagnets. When this magnet is positioned so that its north and south poles are facing upwards and downwards, magnetic field lines are formed around the magnet in the vertical direction. Therefore, if a coil is placed on the side of the magnet, the magnetic field lines will be affected by the coil, and the direction and distribution of the magnetic field lines will change. This effect can be used to control the rotation or stationary state of a floating object.

[0008] Furthermore, in the present invention, the magnetic device may have a height control means for controlling the levitation height of the levitation body. This height control mechanism may be a magnetic material such as iron, a permanent magnet, or an electromagnet, and is positioned directly beneath the levitation body. In the case of magnetic materials such as iron or permanent magnets, the levitation height of the levitation object can be adjusted by moving it up and down, while in the case of electromagnets, the levitation height of the levitation object can be adjusted by the direction and strength of the electric current flow. [Effects of the Invention]

[0009] In the levitation device according to the present invention, the levitation body can be kept stationary by adjusting the position and mass of the balancer provided on the levitation body that is levitated in the air by a magnetic force device, or conversely, the direction and amount of the deviation between the center line of the magnetic flux and the center of gravity can be adjusted by changing the direction and amount of the deviation.

[0010] Furthermore, by placing coils on the sides of the magnets in the magnetic device, the central line of the magnetic field distribution that exerts a repulsive force on the levitating object can be altered by changing the position of these coils and the direction and strength of the current flowing through them. This allows the levitating object to be kept stationary or its direction and speed of rotation to be controlled. [Brief explanation of the drawing]

[0011] [Figure 1] An example of the configuration of the magnetic device according to the present invention is shown. [Figure 2] This shows a side view of the levitating object while it is floating in the air. [Figure 3] (a) shows an explanatory diagram of the levitation body rotating, and (b) shows an example of balancer installation. [Modes for carrying out the invention]

[0012] An example of the configuration of the levitation device according to the present invention will be described below with reference to the figures. Figure 1 shows an example of the configuration of the magnetic device 100. This example shows eight magnets 11-18 arranged concentrically on the upper surface of the circuit board 10. There is no limit to the number of magnets, as long as there are three or more and they are arranged in concentric circles. In addition, the magnet can be not only a permanent magnet but also replaced with an electromagnet, and it may be a ring-shaped magnet. Inside a plurality of magnets (11 to 18) arranged in concentric circles or in a ring shape, there is an example in which four coils 21 to 24 are arranged concentrically. There is no limit to the number of these coils either.

[0013] Above the height control means 30, a floating body 40 is arranged, and a state in which the floating body 40 is floating in the air is shown in FIG. 2 as a side view. In FIG. 2, for the sake of clarity, only magnets 11 and 15 are shown, but eight magnets are arranged in a ring shape. Similarly, only coils 21 and 23 are shown for the coils, but four coils are arranged in a concentric ring shape.

[0014] The floating body 40 is an example in which an N - pole side formed of an upper disk - shaped portion 41 and an S - pole formed of a cylindrical portion 42 having a smaller outer diameter than the disk - shaped portion on the lower side thereof are formed. There is no limitation on the overall shape of the floating body 40 as long as magnetic poles are formed in the vertical direction. In this embodiment, an example of the floating body 40 in which the upper side is the N - pole and the lower side is the S - pole will be described.

[0015] Around this floating body 40, as schematically shown in FIG. 2, magnetic force lines m1 are formed. On the other hand, in the magnetic force device 100, the upper surface side of the magnets (11 to 18) is the N - pole and the lower side is the S - pole corresponding to the magnetic poles of the floating body 40. Magnetic force lines are formed around the magnets 11 to 18. In FIG. 2, only the magnetic force lines m2 and m3 passing through the inner coils (21 to 24) are schematically represented.

[0016] Here, the magnetic force lines m1, m2, and m3 represent the distribution of a plurality of magnetic force lines formed around the magnet and are represented by a single magnetic force line. Next, as shown in Figure 2, the movement of the levitating body 40, which floats up in opposition to the magnetic field lines of the magnetic device 100, will be explained using Figure 3. Figure 3(a) is a plan view of the levitation body 40 as seen from the side of the disc-shaped portion 41. Normally, there is a slight misalignment between the vertical center line S0 of the magnetic flux m1 formed by the upper and lower magnetic poles of the levitating body 40, which passes through the center of the levitating body 40, and the vertical center line S1 of the levitating body 40. In such a state, the shift in the center of gravity of the levitating body 40 causes planetary motion, as shown by the dotted line S1 of the center of gravity in Figure 3, and the levitating body 40 rotates naturally while its center of rotation shifts slightly from side to side, as shown by S2 of the movement of the outline of the levitating body 40. Therefore, in this invention, by attaching a balancer 42a to the side surface of the cylindrical portion 42, as shown in Figure 3(b), so that the position of the magnetic flux center line S0 of the levitation body 40 coincides with the center of gravity line S1 of the levitation body 40, the levitation body 40 can be held in a stationary state without rotation. The method of attaching the balancer 42a is not limited to the cylindrical portion 42 of the floating body 40, but may also be the disc-shaped portion 41. As long as it functions effectively as a balancer, a part of the floating body 40 may be cut off by cutting or other means to adjust the position of the center of gravity, or it may be attached later by welding or other means. Alternatively, bolts or the like may be screwed into the sides of the levitation body 40, and the balance may be adjusted by the amount of screwing in.

[0017] The rotational force generated in such a levitation body 40 can also be controlled by the magnetic device 100. As explained in Figure 2, the levitating body 40 is suspended in the air by the repulsive force between the magnetic field lines m2 and m3 formed by the eight magnets (11-18) and the four coils (21-24) inside them, and the magnetic field line m1 formed by the levitating body 40. For example, by passing a control current from coil 21 to coil 23, the upper side of coil 23 is slightly δ S Pole or delta N When set to poles, differences occur in the distribution of magnetic field lines formed by coils 21-24. This difference counteracts the force that would cause the levitating body 40 to rotate naturally, thus keeping the levitating body 40 stationary. Furthermore, by creating this difference in the circumference, it becomes possible to control the rotation direction and speed of the levitation body 40. These differences in magnetic force can be controlled by feedback by detecting the magnitude of the magnetic force formed by each coil using a magnetic force sensor.

[0018] Next, the operation of the height control means 30 shown in Figure 2 will be explained. As the height control means 30, a magnetic material such as iron is used and raised, and when the upper end is brought close to the south pole of the levitation body 40, the mutual attractive force acts in a direction that lowers the levitation height of the levitation body 40, thereby causing the levitation body 40 to descend. Furthermore, if a permanent magnet is used in the height control means 30, setting the upper side to the north pole will attract the levitation body 40 downwards, and conversely, setting the upper side to the south pole will repel the south pole on the lower side of the levitation body 40, acting in the direction that causes the levitation body to rise. Furthermore, by using an electromagnet as a height control means, the levitation height of the levitation body 40 can be controlled by varying the direction and strength of the current flowing through it. [Explanation of Symbols]

[0019] 10 circuit boards 11 Magnets 21 coils 30 Height control means 40 Floating bodies 100 Magnetic device

Claims

1. A levitation device that generates magnetic force, It has a floating body that floats up by the aforementioned buoyancy device, The levitation device is characterized in that the levitating body has magnetic poles in the vertical direction and a balancer for controlling its rotation or stationary state.

2. A magnetic device that generates magnetic force, It has a levitating body that floats using the aforementioned magnetic device, The levitating body has magnetic poles in the vertical direction, The magnetic device has a plurality of magnets arranged concentrically or a ring-shaped magnet to levitate the levitating body, A levitation device characterized by comprising a coil that controls the state of magnetic field lines formed by the plurality of magnets or ring-shaped magnets.

3. The levitation device according to claim 1 or 2, characterized in that the magnetic force device has a height control means for controlling the levitation height of the levitation body.

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