KR100255878B1 - Magnetic levitation device and method thereof - Google Patents

Abstract

PURPOSE: A magnetic levitation device and a method thereof are provided to stably levitate magnets without using a horizontal control device of a base magnet, to exclude the necessity to control the weight of the levitated magnet, to maintain the height of the levitation to he higher, and to control the relative positions of base magnets to stably levitate another magnets. CONSTITUTION: The first magnet(10) has the first magnetic axis and a flat first surface. The second magnet(20) has the second magnetic axis, and controls the direction of a base magnetic axis formed by combination of the first and second magnetic axes. The third magnet(30) is disposed to a direction repulsive to magnetic field formed by the first/second magnets(10,20) to be levitated by rotation state.

Description

Maglev device and its method

The present invention relates to a magnetic levitation device, and more particularly, to a magnetic levitation device and a method which can stably float a third magnet by adjusting the relative position of the first and second magnets.

Efforts have been made for a long time to place a large and strong magnetic base magnet on a plane and to place a small magnet on the plane so that the direction of the magnetic poles can be repulsed with each other. However, this is ideal. In practice, a small magnet loses its balance in the air and is immediately inverted, causing the magnetic pole to be reversed and sticking to the base magnet, so that it cannot maintain a state of injury.

In order to overcome this problem, by inserting a small ring-shaped magnet into the spindle and rotating it, the magnet rotates together with the spindle. Will occur. Therefore, while the top magnet is upright than the force to fall, the top magnet is maintained in the air by the repulsive force of the base magnet and the top magnet while the top magnet is held up.

In order to provide the condition that the top magnet rises above the base magnet, first, the top magnet should overlap the first magnetic axis of the base magnet with the gravity axis directed toward the earth, and second, the top magnet should be superimposed on the magnet of the base magnet. A centering force acting on the shaft must be applied, and finally, the top magnet must be moved in rotation to a safe position where gravity and repulsive force are offset.

On the other hand, Korean Patent Laid-Open No. 96-702164 provides an apparatus and a method of floating a top magnet on a square-shaped base magnet using this principle. This patent document discloses an injury while the second magnet is rotating by placing the plate on a square first magnet, rotating a small magnet thereon, then using the plate to raise the second magnet to float and then removing the plate. It describes the possible configurations.

The first magnet used in this apparatus is square and configured to provide a centering force by acting a repulsive force that pushes the top magnet from the periphery to the magnetic axis along the direction of the magnetic force line. However, because the permanent magnet of the square is used as the base magnet, the width of the stable position where the second magnet can float is narrow, so that the user must go through a lot of effort and trial and error to guide the second magnet to the stable position. This greatly reduces the practicality of the flotation device. In particular, it is pointed out that the rectangular first magnet is heavy, and when designing using the rectangular first magnet, the degree of freedom of design is extremely limited due to the rectangle.

In order for the top magnet to float, it is necessary to make the magnetic axis of the first magnet (base magnet) coincide with the gravity axis of the second magnet 12. However, the patent document does not mention this problem, and there is no suggestion of a solution.

The present inventors have filed a patent application to complete the invention having a height adjusting means as an adjustment means for adjusting the horizontal position of the base magnet to solve the problems of the patent document (August 9, 1997 application, patent application 97-38028). According to this invention, since the height of the base magnet can be adjusted simply by a screw, the magnetic axis of the base magnet can be corrected, so that the magnet can be easily floated.

Accordingly, the present inventors have further developed the research on this, and completed the magnetic levitation device and the method which can easily injure the magnet and at the same time maintain the height of the levitation to reach the present invention.

Accordingly, it is an object of the present invention to provide a magnetic levitation apparatus which can stably float a floating magnet without means for adjusting the level of the base magnet.

Another object of the present invention is to provide a magnetic levitation apparatus which does not need to adjust the weight of a magnet floating in the air.

It is still another object of the present invention to provide a magnetic levitation device capable of maintaining a higher height of the floating of a magnet floating in the air.

Another object of the present invention is to provide a method of stably floating another magnet in the air by adjusting the relative position of at least two base magnets.

♣ Explanation of symbols for the main parts of the drawing ♣

10: first magnet 20: second magnet

30: third magnet

An object of the present invention as described above comprises: a first magnet having a first magnetic axis and a first surface that is substantially planar; A second magnet having a second magnetic axis and capable of adjusting a direction of a base magnetic axis formed by combining the first magnetic axis and the second magnetic axis by changing a position relative to the first magnet; It can be achieved by a magnetic levitation device including a third magnet which is disposed in a direction that repels the magnetic force formed by the first magnet and the second magnet to rise in a rotating state.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 shows a base magnet of a magnetic levitating device according to the present invention. The first magnet 10 is the largest and strongest magnet and the upper surface is formed generally in a plane. The first magnetic axis (Z direction) is formed in the direction perpendicular to the plane at the center position of the magnet. This magnetic axis is theoretically an axis in which the magnetic lines of force extend indefinitely, and there is one axis in one magnet.

The first magnet may have a polygonal or circular shape in cross section, but a circular one may be preferably used in the present invention in view of securing stability of the floating magnet, suitability of the second magnet, and freedom of design.

A space is formed in the center of the first magnet 10. It is preferable that the cross section of this space is formed in a substantially circular shape similar to the cross section of the first magnet 10. It is preferable that the cross section of the 2nd magnet 20 contained in this space is also circular.

Since the second magnet 20 has a second magnetic axis and is disposed at the center of the first magnet 10, the second magnetic axis of the second magnet generally coincides with the first magnetic axis of the first magnet. However, not only can the first magnet or the second magnet be physically completely horizontally positioned, but also these magnets have a slight inclination because the magnetic flux density as a whole cannot be formed evenly. Therefore, since the first magnetic axis of the first magnet has an inclination, it cannot coincide with the gravity axis of the magnet floating on the first magnet, and as a result, the magnet cannot be stably floated.

In the present invention, by providing a second magnet 20 in the space formed inside the first magnet, the magnetic force of the first magnet and the second magnet is synthesized to form a new base magnetic axis. The relative position of the first magnet and the second magnet is adjusted to match the gravity axis toward the earth center of the floating magnet by adjusting in the direction of the base magnetic axis. As the relative positions of the two magnets having different inclinations change, the mutual magnetic flux density forces change, and thus the direction of the base magnetic axis due to the synthesis thereof is changed, and the final magnet can match the gravity axis of the floating magnet.

The relative position of the first magnet and the second magnet may be adjusted by fixing the first magnet, adjusting the second magnet, or fixing the second magnet and adjusting the first magnet. In order to adjust the relative position between the two magnets, it is possible to easily adjust the direction of the base magnet axis by moving any one of the magnets in the longitudinal direction along the Y axis in the horizontal direction along the X axis.

On the other hand, the arrangement of the magnetic poles of the first magnet and the second magnet so as to be opposite to each other in a horizontally arranged state. As shown in FIG. 2, when the first surface (upper surface) of the first magnet 10 is the N pole and the lower surface is the S pole, the upper portion (upper surface) of the second magnet 20 is the S pole and the lower portion. (Lower surface) is N pole, and vice versa.

3 is a cross-sectional view of the first magnet 10 and the second magnet 20 shows a state in which the relative position in the horizontal direction between the two magnets is adjusted. The center of the first magnet 10 (intersection of the X-axis and Y-axis) and the center of the second magnet 20 (intersection of the X-axis and Y'-axis) do not coincide and lie at different positions. The inclination of the base magnetic axis changes as the relative position changes. By adjusting this relative position carefully, the inclination of the base magnetic axis can be corrected to coincide with the gravity axis of the floating magnet.

Figure 4 shows a cross section of an embodiment that can adjust the relative position in the horizontal direction of the first magnet 10 and the second magnet 20 in accordance with the present invention. The first magnet 10 and the second magnet 20 are installed in the housing 50, and the periphery of the first magnet 10 is supported on the inner wall of the housing 50. At this time, one periphery of the first magnet 10 in the longitudinal direction is supported by the elastic member 52, and one periphery of the transverse direction is supported by the elastic member 54.

Thus, adjusting screws 56 and 58 which can be moved back and forth to the opposite positions of these support points while the transverse and longitudinal peripheries of the first magnet 10 are supported by the respective elastic members 52 and 54. Is installed. Since the adjustment screw is guided to the screw surface formed through the housing and moves forward and backward, when the adjustment screw moves forward and backward, the first magnet 10 is connected with the elastic member and supported by the elastic member and the adjustment screw. The position of is changed in the horizontal or vertical direction.

That is, when the adjusting screw 58 is moved forward and backward, the first magnet 10 moves in the horizontal direction, and when the adjusting screw 56 is moved forward and backward, the first magnet 10 moves in the vertical direction, so that the second magnet fixed at the center is moved. The relative position between the two magnets with respect to 20 can be adjusted. In the drawing, it can be seen that the center point of the first magnet 10 (the center point of the X axis and the Y axis) and the center point of the second magnet (the intersection of the X 'axis and the Y' axis) lie at different positions.

Figure 5 shows an embodiment in which the height of the second magnet 20 can be adjusted in the longitudinal section in accordance with the present invention. When the second magnet 20 is moved along the height direction (Z direction), the floating magnet affects the centering force directed to the base magnetic axis. In the case of the second magnet, the center force is strengthened compared to the prior art without it, thus eliminating the need for the weight adjusting device (ring) of the floating magnet, which was necessary in the prior art. Therefore, as the weight of the floating magnet decreases, the floating height of the floating magnet can be increased. At this time, since the height of the second magnet can be adjusted in relation to the height of the injury, it is possible to easily secure a stable injury area of the floating magnet. Therefore, as described in FIG. 4, after adjusting the base magnetic axis to match the gravity axis of the floating magnet, the height magnet position of the second magnet 20 is carefully changed to adjust the floating magnet to have a stable floating position.

At this time, in order to adjust the height of the second magnet 20 is provided an adjustment screw 58 that can move back and forth in the height direction (Z direction). Since the adjusting screw 58 is guided to the screw surface provided in the through hole formed in the bottom surface of the housing 50 and moves forward and backward in the height direction, the height of the second magnet 20 coupled thereon is changed up and down. . When the user adjusts the adjusting screw 58 by hand, the auxiliary screw 60 having a gear surface that rotates in engagement with the adjusting screw 58 may be employed so that the adjusting screw 58 may be adjusted more conveniently.

6 shows a first magnet 10, a second magnet 20 and a third magnet 30 floating in the air according to the present invention. The third magnet 30 has a polarity opposite to the polarity of the first magnet 10 is configured to provide a mutual repulsive force, the first magnet 10 and the second magnet 20 is the opposite of the attraction force to each other Make it polar. Therefore, as shown in the drawing, if the upper surface of the first magnet 10 is the N pole, the upper surface of the second magnet 20 is the S pole so that the attraction force acts on it, and the lower surface of the third magnet 30 is the first magnet ( It is arranged to have an N pole to repel the upper surface of 10). If the magnetic pole of the first surface (upper surface) of the first magnet 10 is the S pole, the polarities of the other magnets are also reversed.

The third magnet, which floats in the air, needs to maintain a spinning state such as a spinning top, and is composed of a spindle formed at the center of the magnet having a circular cross section and coupled thereto.

Referring to FIG. 7, in another embodiment of the present invention, the base magnetic axis may be corrected by changing a relative position between two magnets by providing a second magnet 20 having substantially the same shape as the first magnet 10. . These two magnets are arranged to have opposite magnetic poles so as to attract each other, and are coupled to each other, and by adjusting the two magnets slightly apart, the direction of the base magnetic axis due to the combination of the magnetic flux densities of the two magnets is adjusted to rise. It can be calibrated to match the gravity axis of three magnets. For example, if the lower surface of the first magnet 10 is the S pole for the magnetic coupling of the two magnets, the upper surface of the second magnet 20 becomes the N pole, and in the opposite case, the magnetic force is applied to each other.

Further, when the cross-sectional shape of the first magnet 10 and the second magnet 20 is approximately circular, a space is formed in the center of these magnets and the second 'magnet 20' included in the space is again formed. It can be arranged further (FIG. 8). In this case, the correction of the base magnetic axis is performed by adjusting the first magnet 10 and the second magnet 20 little by little to each other, and the second 'magnet provided at the center for stable floating and height adjustment of the floating third magnet. Adjust the height of the 20 '.

In another aspect of the present invention, there is provided a first magnetic axis and a second magnet on the base magnet including a second magnet capable of repositioning relative to a first magnet having a first surface that is substantially planar. Placing three magnets; Rotating a third magnet about the gravity axis of the third magnet; Raising the third magnet upward along the first magnetic axis; A method of floating a magnet is provided that includes adjusting a relative position of the second magnet with respect to the first magnet such that the third magnet is stably floated in a rotated state.

According to the method of the present invention, a third magnet is formed on a base magnet formed of a first magnet having a first surface that is substantially planar with the first magnetic axis, and a second magnet arranged to have a magnetic pole opposite thereto and magnetically coupled thereto. To place.

Then, the third magnet is rotated about the gravity axis of the third magnet. Therefore, it is preferable that the third magnet has a doughnut shape and has a top shape by engaging with the spindle in a space formed at the center thereof. By rotating the spinning top-shaped third magnet by hand, a force to stand up is generated by the spinning effect of the spinning top.

As the third magnet rotates, it is raised to the air along the base magnetic axis of the base magnet. In order to raise more conveniently, it is preferable to place a plate which is not influenced by magnetic force on the base magnet, place a third magnet thereon, and then rotate, and lift to the air while maintaining this rotation state.

As the third magnet is moved into the air, the top magnet remains in a floating state at a point where the gravity of the third magnet and the repulsive force between the base magnet are substantially coincident with each other. At this time, when the base magnetic axis does not coincide with the gravity axis of the top magnet, the top magnet tends to deviate in either direction, and the relative position of the first magnet and the second magnet is adjusted to correct the magnetic axis. Correct it. By repeating this operation several times, if the magnetic axis is corrected by trial and error, the floating of the top magnet can be achieved.

Since the third magnet (top magnet) and the second magnet have a magnet arrangement in which the attraction force acts on each other, the second magnet, the top magnet, and the attraction force act in addition to the gravity of the top magnet and the repulsive force of the top magnet and the first magnet. do. Therefore, the height adjustment of the second magnet changes the attractive force between the second magnet and the third magnet, thus affecting the balance of forces between these three forces, and consequently through the height adjustment of the second magnet The height of the floating third magnet can be adjusted.

As is apparent from the above description, according to the magnetically levitating device and method of the present invention, there is no need to use height adjusting means such as wedges or legs, and there is no need to adjust the weight of the floating top magnet, thereby greatly reducing the effort for injuring the magnet. It can be, and as the gravity of the top magnet is less there is an advantage that can increase the height of the injury.

Claims (9)

A first magnet 10 having a first magnetic axis and a substantially planar first surface; A second magnet 20 having a second magnetic axis, the second magnet 20 being capable of adjusting the direction of the base magnetic axis formed by combining the first magnetic axis and the second magnetic axis by changing a position relative to the first magnet; Magnetic levitation device comprising a third magnet (30) which is disposed in a direction to repel the magnetic force formed by the first magnet (10) and the second magnet (20) to rise in a rotating state. The magnetic levitation device according to claim 1, wherein the first magnet (10) and the second magnet (20) are arranged in a direction in which the polarities of the magnets are opposite to each other. The magnetic levitation device according to claim 2, wherein the second magnet (20) is disposed in a space formed at the center of the first magnet. The method of claim 1, wherein the first magnet 10 is fixed and the second magnet 20 is fixed to change the relative position of the first magnet 10 and the second magnet 20. Maglev device, characterized in that for changing the position. The method of claim 1, wherein the second magnet 20 is fixed to change the relative position of the first magnet 10 and the second magnet 20, and the first magnet 10 is fixed to the second magnet 20. Maglev device, characterized in that for changing the position. The method of claim 1, wherein the change of the relative position of the second magnet 20 with respect to the first magnet 10 is the elastic member 52, 54 and the elastic member for supporting the periphery of the first magnet (10) Magnetically levitating device, characterized in that it comprises an adjustment screw (56) (58) positioned in a direction opposite to the forward and backward movement. The magnetic levitation device according to claim 6, further comprising a height adjusting screw (58) for moving in the height direction of the second magnet (20). 2. The magnetic levitating device according to claim 1, wherein the second magnet has a shape substantially the same as that of the first magnet, and is disposed below the first magnet. Disposing a third magnet in a magnetic pole direction that repels the base magnet on a base magnet including a second magnet capable of changing its position relative to a first magnet having a first magnetic axis and a first plane that is substantially planar; Rotating a third magnet about the gravity axis of the third magnet; Raising the third magnet upward along the first magnetic axis; Adjusting the relative position of the second magnet with respect to the first magnet such that the third magnet stably floats in rotation.

Images