WO2023155891A1

WO2023155891A1 - Magnetic levitation device

Info

Publication number: WO2023155891A1
Application number: PCT/CN2023/076820
Authority: WO
Inventors: 彭楚尧; 王昊泽; 陈勇; 汤星扬; 张卓尔
Original assignee: 深磁科技(深圳)有限公司
Priority date: 2022-02-17
Filing date: 2023-02-17
Publication date: 2023-08-24
Also published as: CN114553056A

Abstract

Disclosed in the present invention is a magnetic levitation device, comprising a base module, a levitation module and a control module. The base module comprises a radially magnetized first magnet (1); the levitation module comprises an axially magnetized second magnet (2); the inner side of the first magnet (1) exhibits first magnetic polarity, the outer side of the first magnet (1) exhibits second magnetic polarity, and the first magnetic polarity is opposite to the second magnetic polarity; the upper surface of the second magnet (2) exhibits third magnetic polarity, the lower surface of the second magnet (2) exhibits fourth magnetic polarity, and the third magnetic polarity is opposite to the fourth magnetic polarity; the levitation module can be levitated above the base module; the control module is used for keeping the levitation module stably levitated. The present invention has the advantages such as strong levitation force and good levitation stability.

Description

A magnetic levitation device

Cross References to Related Applications

This application is based on the Chinese patent application with the application date of "February 17, 2022", the application number "202210149266.7", and the invention title "a magnetic levitation device", and claims its priority. The Chinese patent application The entire text is hereby incorporated into this application as a part of this application.

【Technical field】

The invention relates to the technical field of magnetic levitation, in particular to a magnetic levitation device.

【Background technique】

The current magnetic levitation device may use the principle of "same sex repulsion" to make the upper surface of the base and the lower surface of the suspension module have the same polarity, and use the principle of same sex repulsion to generate magnetic repulsion to balance the weight of the suspension module and make it levitate; but The suspension performance of this method is limited, and the suspension module needs to be evenly distributed in volume and weight. It can only carry specific regular objects such as coins and cup lids; once there is a small amount of deviation, the magnetic induction line passes through the suspension module. The situation will change rapidly, so that the balance will be lost, and the suspension stability will be poor; and since the suspension module is located at the position with the densest magnetic field lines on the base, if the position of the suspension module changes, the magnetic flux passing through the suspension module will also change rapidly, resulting in relatively high The obvious eddy current phenomenon generates heat, which reduces the effective use of energy.

Or the magnetism near the ring surface area of the ring magnet is opposite to the magnetism in a certain predetermined area outside the ring magnet of the ring magnet. The polarity of a predetermined area is N, and the strength of the polarity N of this area will change with the change of the government or the horizontal position, so that the object can be suspended and It can be rotated in the horizontal direction without an additional placement mechanism, such as the invention patent of Chinese Patent No. ZL200610065336.1. However, this method utilizes opposite repulsion, that is, the repulsive force generated by the specific area above the base with opposite polarity and the levitation module realizes levitation, and the magnetic repulsion force that can be provided is still limited; moreover, the magnetic field line density at the levitation module position is still relatively dense. , when the suspension module has a certain horizontal offset and tilt, the generated eddy current loss is still relatively large.

【Content of invention】

The technical problem to be solved by the present invention is that, aiming at the technical problems existing in the prior art, the present invention provides a magnetic levitation device with strong levitation force and good levitation stability.

In order to solve the above technical problems, the technical solution proposed by the present invention is: a magnetic levitation device, including a base module, a levitation module and a control module;

the base module includes a radially magnetized first magnet;

The levitation module includes an axially magnetized second magnet;

The inner side of the first magnet exhibits a first magnetic polarity, the outer side exhibits a second magnetic polarity, and the first magnetic polarity and the second magnetic polarity are opposite;

The upper surface of the second magnet exhibits a third magnetic polarity, the lower surface exhibits a fourth magnetic polarity, and the third magnetic polarity is opposite to the fourth magnetic polarity;

The suspension module can be suspended above the base module; the control module is used to keep the suspension module suspended stably.

Further, the first magnetic polarity is the same as the third magnetic polarity, and the second magnetic polarity is the same as the fourth magnetic polarity;

or:

The first magnetic polarity is opposite to the third magnetic polarity, and the second magnetic polarity is opposite to the fourth magnetic polarity.

Further, the base module includes a first magnetic shielding plate and a bottom plate, the first magnetic shielding plate is located above the bottom plate, and an equipment installation space is formed between the first magnetic shielding plate and the bottom plate; A magnet is arranged above the first magnetic shielding plate; the control module includes a float deviation measuring sensor, an electromagnet and a control circuit, and the float deviation measuring sensor and the electromagnet are arranged above the first magnetic shielding plate, so The control circuit is arranged between the first magnetic shielding plate and the bottom plate;

Or: the levitation module includes a second magnetic shielding plate, and the second magnetic shielding plate is located above the second magnet.

Further, the float deflection sensor is a Hall sensor.

Further, the first magnet is a single ring magnet, or at least three independent magnets are arranged in a ring shape;

The second magnet is a cylindrical magnet, or a ring magnet, or a spherical magnet;

The ring magnet is a single ring magnet, or at least three independent magnets are arranged in a ring shape.

Further, the weight of the suspension module is greater than 2 grams.

A magnetic levitation device, including a base module, a levitation module and a control module;

the base module includes an axially magnetized third magnet;

The suspension module includes a radially magnetized fourth magnet;

The upper surface of the third magnet exhibits fifth magnetic polarity, the lower surface exhibits sixth magnetic polarity, and the fifth magnetic polarity is opposite to the sixth magnetic polarity;

The inner side of the fourth magnet exhibits the seventh magnetic polarity, the outer side exhibits the eighth magnetic polarity, and the seventh magnetic polarity is opposite to the eighth magnetic polarity;

Further, the fifth magnetic polarity is the same as the seventh magnetic polarity, and the sixth magnetic polarity is the same as the eighth magnetic polarity the same sex;

or:

The fifth magnetic polarity is opposite to the seventh magnetic polarity, and the sixth magnetic polarity is opposite to the eighth magnetic polarity.

Further, the base module includes a first magnetic shielding plate and a bottom plate, the first magnetic shielding plate is located above the bottom plate, and an equipment installation space is formed between the first magnetic shielding plate and the bottom plate; Three magnets are arranged above the first magnetic shielding plate; the control module includes a float deviation measuring sensor, an electromagnet and a control circuit, and the float deviation measuring sensor and the electromagnet are arranged above the first magnetic shielding plate, so The control circuit is arranged between the first magnetic shielding plate and the bottom plate;

Or: the levitation module includes a second magnetic shielding plate, and the second magnetic shielding plate is located above the fourth magnet.

Further, the float deflection sensor is a Hall sensor.

Further, the third magnet is a cylindrical magnet or a ring magnet; the ring magnet is a single ring magnet, or at least three independent magnets are arranged in a ring;

or:

The fourth magnet is a single ring magnet, or at least three independent magnets are arranged in a ring shape.

Further, the weight of the suspension module is greater than 2 grams.

Compared with the prior art, the present invention has the advantages of:

1. In the base module and the suspension module of the present invention, one adopts a radially magnetized magnet, and the other adopts an axially magnetized magnet, and the magnetic repulsion force generated by the magnetic field between the base module and the suspension module is used to realize the suspension of the suspension module. suspended. Since the radially magnetized magnet can form a strong magnetic field on its upper surface or lower surface area, it can generate a strong magnetic repulsion force on the levitation module, so that the magnetic levitation device has greater levitation force and a higher levitation height , greater load capacity.

2. In the base module or the suspension module of the present invention, one adopts a radially magnetized magnet, and the other adopts an axially magnetized magnet, so that the direction of the magnetic field in the area between the base module and the suspension module tends to be horizontal Direction, that is, the intensity of the magnetic field in the horizontal direction changes less, so that when the suspension module is suspended relative to the base module, the two are in a relatively stable magnetic field. Therefore, the suspension module has better suspension stability and better anti-interference ability. powerful.

3. In the base module or the suspension module of the present invention, one adopts a radially magnetized magnet, and the other adopts an axially magnetized magnet, so that the direction of the magnetic field in the area between the base module and the suspension module tends to be In the horizontal direction, the intensity change of the magnetic field in the horizontal direction is small. When the suspension module is displaced horizontally in the suspension state, the change of the magnetic field it is in is also small. Therefore, the eddy current loss due to the change of the magnetic field intensity is also small. .

【Description of drawings】

FIG. 1 is a schematic perspective view of the three-dimensional structure of Embodiment 1 of the present invention.

Fig. 2 is a front structural schematic diagram and an A-A line sectional view of Embodiment 1 of the present invention.

FIG. 3 is a schematic diagram of the magnetic polarity of each magnet in Embodiment 1 of the present invention.

FIG. 4 is a first schematic diagram of a magnetic field distribution of a base module according to a specific embodiment of the present invention.

Fig. 5 is a second schematic diagram of the magnetic field distribution in the levitation state according to the first embodiment of the present invention.

FIG. 6 is a schematic diagram of magnetic lines of force in Embodiment 1 of the present invention.

Fig. 7 is a schematic perspective view of the three-dimensional structure of the second embodiment of the present invention.

Fig. 8 is a front structural schematic diagram and A-A line sectional view of the second embodiment of the present invention.

FIG. 9 is a schematic diagram of the magnetic polarity of each magnet in Embodiment 2 of the present invention.

FIG. 10 is a first schematic diagram of the magnetic field distribution of the base module in Embodiment 2 of the present invention.

Fig. 11 is a second schematic diagram of the magnetic field distribution in the levitation state according to the second embodiment of the present invention.

Fig. 12 is a schematic diagram of magnetic lines of force in Embodiment 2 of the present invention.
Legend: 1. First magnet; 2. Second magnet; 3. Electromagnet; 4. Control circuit; 5. First magnetic shielding plate; 6. Bottom plate; 7. Second magnetic shielding plate; 8. Third magnet 9. The fourth magnet.

【Detailed ways】

The present invention will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

Embodiment one:

The magnetic levitation device of this embodiment, as shown in Figure 1 and Figure 2, includes a base module, a levitation module and a control module; the base module includes a radially magnetized first magnet 1; the levitation module includes an axially magnetized second magnet 2. The inner side of the first magnet 1 shows the first magnetic polarity, the outer side shows the second magnetic polarity, and the first magnetic polarity and the second magnetic polarity are opposite; the upper surface of the second magnet 2 shows the third magnetic polarity, and the lower surface It is shown as the fourth magnetic polarity, and the third magnetic polarity is opposite to the fourth magnetic polarity; the suspension module can be suspended above the base module; the control module is used to keep the suspension module suspended stably.

In this embodiment, the first magnetic polarity is opposite to the third magnetic polarity, and the second magnetic polarity is opposite to the fourth magnetic polarity; or: the first magnetic polarity is the same as the third magnetic polarity, and the second magnetic polarity is opposite to the fourth magnetic polarity. same. Wherein, the first magnetic polarity is opposite to the third magnetic polarity, and the second magnetic polarity is opposite to the fourth magnetic polarity, which is a preferred technical solution. As shown in Figure 3, the first magnet 1 is circular, and Figure 3 is a cross-sectional view through its center in the vertical direction, wherein the magnetic polarity inside the first magnet 1 in the base module is S pole, and the magnetic pole outside The polarity is N pole, the magnetic polarity of the lower surface of the second magnet 2 in the suspension module is S pole, and the magnetic polarity of the upper surface is N pole. It should be noted that the magnetic polarity of the first magnet 1 in the base module can also be opposite to that shown in FIG. 3 , and/or the magnetic polarity of the second magnet 2 in the suspension module can also be opposite to that shown in FIG. 3 . magnetic polarity. That is to say, the following magnetic polarity setting methods can also be adopted, all of which can realize the stable suspension of the levitation module above the base module: (1) The inner magnetic polarity of the first magnet 1 in the base module is S pole, and the outer magnetic polarity is N pole, The magnetic polarity of the bottom surface of the second magnet 2 in the suspension module is N pole, and the magnetic polarity of the upper surface is S pole. (2) The magnetic polarity of the inner side of the first magnet 1 in the base module is N pole, the magnetic polarity of the outer side is S pole, the magnetic polarity of the lower bottom surface of the second magnet 2 in the suspension module is S pole, and the magnetic polarity of the upper surface is N pole. (3) The magnetic polarity of the inner side of the first magnet 1 in the base module is N pole, the magnetic polarity of the outside is S pole, the magnetic polarity of the lower bottom surface of the second magnet 2 in the suspension module is N pole, and the magnetic polarity of the upper surface is S pole. In this embodiment, only the situation shown in FIG. 3 is taken as an example for description.

In this embodiment, for the magnetic polarity setting method shown in Figure 3, the magnetic field distribution of the base module determined by simulation calculation is shown in Figure 4, and when the suspension module is suspended above the base module, its magnetic field distribution is shown in Figure 5 The distribution of the magnetic lines of force is shown in Figure 6. It can be seen from Fig. 4, Fig. 5 and Fig. 6 that a strong magnetic field can be generated near the upper surface or the lower surface of the first magnet 1 of the base module, and the first magnet 1 of the base module and the suspension module Between the second magnet 2, the magnetic field distribution curve is relatively dense, and the magnetic field lines are relatively dense. Therefore, a strong magnetic repulsion force can be generated between the first magnet 1 and the second magnet 2, so that the magnetic levitation device has greater Suspension force, higher suspension height, greater load capacity.

At the same time, it can also be seen from FIG. 5 that between the first magnet 1 and the second magnet 2, the direction of the magnetic field basically tends to the horizontal direction, which means that when the second magnet 2 is suspended in the area above the first magnet 1, The second magnet 2 is in a more stable magnetic field. When the second magnet 2 is displaced in the horizontal direction, the change of the magnetic field strength at its position is relatively small. Therefore, the stable levitation area of the second magnet 2 is wider. , higher suspension and stability, stronger anti-interference ability. Moreover, when the second magnet 2 is displaced in the horizontal direction, because the change of the magnetic field it is in is small, the electromagnetic induction generated by the change of the magnetic field intensity is also small, and the eddy current generated is also small, and the eddy current caused by the eddy current is relatively small. The energy loss is also smaller.

In this embodiment, as shown in Figure 1, the base module includes a first magnetic shielding plate 5 and a bottom plate 6, the first magnetic shielding plate 5 is located above the bottom plate 6, and the first magnetic shielding plate 5 and the bottom plate 6 are connected by columns , form the equipment installation space; the first magnet 1 is arranged above the first magnetic shielding plate 5; the control module includes a float deviation measuring sensor, an electromagnet 3 and a control circuit 4, and the float deviation measuring sensor and the electromagnet 3 are arranged on the first magnetic shielding Above the board 5 , the control circuit 4 is arranged between the first magnetic shielding board 5 and the bottom board 6 . In this embodiment, the levitation module includes a second magnetic shielding plate 7 , and the second magnetic shielding plate 7 is located above the second magnet 2 . The first magnetic shielding plate 5 is used to separate the first magnet 1 and the control circuit 4 of the control module, so that an area with a smaller magnetic field intensity can be formed under the first magnetic shielding plate 5, which can effectively prevent the first magnet 1 or The magnetic field of the second magnet 2 interferes with the control circuit 4 , improving the operation stability of the control circuit 4 . The float deflection sensor is not shown in the figure. By arranging the second magnetic shielding plate 7, an area with a smaller magnetic field intensity can be formed above the second magnet 2, so that when the suspension module needs to carry other electronic equipment, it can provide a good operating environment for the electronic equipment and reduce the impact of the magnetic field on the magnetic field. Interference caused by electronic equipment.

In this embodiment, the float deflection sensor is preferably a Hall sensor. The float deflection sensor is used to detect levitation The suspension position of the module, and provide the position to the control circuit 4, and then the control circuit 4 controls the electromagnet 3 to generate a corresponding magnetic field, so that the suspension module is suspended above the base stably. Of course, other sensors capable of measuring the suspension position of the suspension module can also be used as float deviation measuring sensors.

In this embodiment, the first magnet 1 is a single ring magnet, or is arranged in a ring by at least three independent magnets; the second magnet 2 is a columnar magnet, or a ring magnet, or a spherical magnet; the ring magnet is a single ring magnet, or is formed by At least three independent magnets are arranged in a ring. A single ring magnet refers to a piece of magnet that is in the shape of a ring. However, due to the relatively high production cost of a single ring magnet, the production difficulty is relatively large. Therefore, in this embodiment, the ring magnet is preferably arranged in a ring with three or more independent magnets. On the one hand, it can reduce costs. The shape and size of the rings arranged are not limited by the physical shape of the magnet itself, and the flexibility is better. The rings mentioned in this embodiment not only include regular circular rings, but also other shapes such as ellipses, rectangles, and regular polygons. Certainly, when the magnets are arranged regularly, the algorithm for realizing the control of the stable levitation through the control circuit 4 is relatively simpler and easier to implement.

In this embodiment, it is further preferred that the suspension module weighs more than 2 grams.

Embodiment two:

This embodiment is basically the same as Embodiment 1, except that the magnets of the base module are magnets magnetized axially, and the magnets of the suspension module are magnets magnetized radially.

The magnetic levitation device of this embodiment, as shown in Figure 7 and Figure 8, includes a base module, a levitation module and a control module; the base module includes an axially magnetized third magnet 8; the levitation module includes a radially magnetized The fourth magnet 9; the upper surface of the third magnet 8 shows the fifth magnetic polarity, the lower surface shows the sixth magnetic polarity, the fifth magnetic polarity and the sixth magnetic polarity are opposite; the fourth magnetic polarity The inner side of the magnet 9 shows the seventh magnetic polarity, and the outer side shows the eighth magnetic polarity, and the seventh magnetic polarity is opposite to the eighth magnetic polarity; the suspension module can be suspended above the base module; the control The module is used to keep the suspension module suspended stably.

In this embodiment, the fifth magnetic polarity is opposite to the seventh magnetic polarity, and the sixth magnetic polarity is opposite to the eighth magnetic polarity; or: the fifth magnetic polarity is the same as the seventh magnetic polarity, and the sixth magnetic polarity is opposite to the eighth magnetic polarity. same. As shown in Figure 9, the third magnet 8 is circular, and Figure 9 is a cross-sectional view through its center in the vertical direction, wherein the magnetic polarity of the lower surface of the third magnet 8 in the base module is S pole, and the upper surface The magnetic polarity of the magnetic pole is N pole, the magnetic polarity of the inner surface of the fourth magnet 9 in the suspension module is N pole, and the magnetic polarity of the outer surface is S pole. It should be noted that the magnetic polarity of the third magnet 8 in the base module can also be opposite to that shown in FIG. 9 , and/or the magnetic polarity of the fourth magnet 9 in the suspension module can also be opposite to that shown in FIG. 9 magnetic polarity. That is to say, the following several configurations of magnetic polarity can also be adopted, all of which can realize the stable suspension of the suspension module above the base module: (1) the magnetic polarity of the upper surface of the third magnet 8 in the base module is N pole, and the magnetic pole of the lower surface is N pole. The polarity is S pole, the magnetic polarity of the inner surface of the fourth magnet 9 in the suspension module is S pole, and the magnetic polarity of the outer surface is N pole. (2) The magnetic polarity of the upper surface of the third magnet 8 in the base module is S pole, the magnetic polarity of the lower surface is N pole, and the suspension mode The magnetic polarity of the inner side of the fourth magnet 9 in the block is N pole, and the magnetic polarity of the outer side is S pole. (3) The magnetic polarity of the upper surface of the third magnet 8 in the base module is S pole, the magnetic polarity of the lower surface is N pole, the magnetic polarity of the inner surface of the fourth magnet 9 in the suspension module is S pole, and the magnetic polarity of the outer surface is S pole. Sex is N pole. In this embodiment, only the situation shown in FIG. 9 is taken as an example for description.

In this embodiment, for the magnetic polarity setting method shown in Figure 9, the magnetic field distribution of the base module determined through simulation calculation is shown in Figure 10, and when the suspension module is suspended above the base module, its magnetic field distribution is shown in Figure 11 The distribution of its magnetic field lines is shown in Figure 12. It can be seen from Fig. 10, Fig. 11 and Fig. 12 that a strong magnetic field can be generated near the upper surface or lower surface of the third magnet 8 of the base module, and the third magnet 8 of the base module and the levitation module Between the fourth magnet 9, the magnetic field distribution curve is also relatively dense, and the magnetic field lines are relatively dense. Therefore, a strong magnetic repulsion force can be generated between the third magnet 8 and the fourth magnet 9, so that the magnetic levitation device has greater Suspension force, higher suspension height, greater load capacity.

At the same time, it can also be seen from FIG. 11 that between the third magnet 8 and the fourth magnet 9, the direction of the magnetic field tends to be substantially horizontal, which means that when the fourth magnet 9 is suspended in the area above the third magnet 8, The fourth magnet 9 is in a more stable magnetic field. When the fourth magnet 9 is displaced in the horizontal direction, the change of the magnetic field strength at its position is relatively small. Therefore, the stable levitation area of the fourth magnet 9 is wider. , higher suspension and stability, stronger anti-interference ability. Moreover, when the fourth magnet 9 is displaced in the horizontal direction, because the change of the magnetic field it is in is small, the electromagnetic induction caused by the change of the magnetic field intensity is also small, and the eddy current generated is also small, and the eddy current caused by the eddy current is relatively small. The energy loss is also smaller.

In this embodiment, as shown in Figure 7 and Figure 8, the base module includes a first magnetic shielding plate 5 and a bottom plate 6, the first magnetic shielding plate 5 is located above the bottom plate 6, and a device is formed between the first magnetic shielding plate and the bottom plate Installation space; the third magnet 8 is arranged above the first magnetic shielding plate 5; the control module includes a float deviation measuring sensor, an electromagnet 3 and a control circuit 4, and the float deviation measuring sensor and the electromagnet 3 are arranged above the first magnetic shielding plate 5 , the control circuit 4 is disposed between the first magnetic shielding plate 5 and the bottom plate 6 ; or: the suspension module includes a second magnetic shielding plate 7 , and the second magnetic shielding plate 7 is located above the fourth magnet 9 . The third magnet 8 and the control circuit 4 of the control module are separated by the first magnetic shielding plate 5, so that a region with less magnetic field strength can be formed under the first magnetic shielding plate 5, which can effectively prevent the third magnet 8 or The magnetic field of the fourth magnet 9 interferes with the control circuit 4 to improve the operation stability of the control circuit 4 . The float deflection sensor is not shown in the figure.

In this embodiment, the levitation module includes a second magnetic shielding plate 7 , and the second magnetic shielding plate 7 is located above the fourth magnet 9 . By setting the second magnetic shielding plate 7, a region with a smaller magnetic field intensity can be formed above the fourth magnet 9, so that when the suspension module needs to carry other electronic equipment, it can provide a good operating environment for the electronic equipment and reduce the impact of the magnetic field. Interference caused by electronic equipment.

In this embodiment, the third magnet 8 is a cylindrical magnet or a ring magnet; the ring magnet is a single ring magnet, or at least three independent magnets are arranged in a ring; or: the fourth magnet 9 is a single ring Magnets, or at least three independent magnets arranged in a ring. A single ring magnet refers to a piece of magnet that is in the shape of a ring. However, due to the relatively high production cost of a single ring magnet, the production difficulty is relatively large. Therefore, in this embodiment, the ring magnet is preferably arranged in a ring by three or more independent magnets. On the one hand, the cost can be reduced. On the other hand, It can also make the arranged annular shape and size not limited by the physical shape of the magnet itself, so the flexibility is better. The rings mentioned in this embodiment not only include regular circular rings, but also other shapes such as ellipses, rectangles, and regular polygons. Certainly, when the magnets are arranged regularly, the algorithm for realizing the control of the stable levitation through the control circuit 4 is relatively simpler and easier to implement.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

A magnetic levitation device, characterized in that it includes a base module, a levitation module and a control module;

The base module comprises a radially magnetized first magnet (1);

The levitation module includes a second magnet (2) that is axially magnetized;

The inner side of the first magnet (1) exhibits a first magnetic polarity, the outer side exhibits a second magnetic polarity, and the first magnetic polarity and the second magnetic polarity are opposite;

The upper surface of the second magnet (2) exhibits a third magnetic polarity, the lower surface exhibits a fourth magnetic polarity, and the third magnetic polarity is opposite to the fourth magnetic polarity;

The suspension module can be suspended above the base module; the control module is used to keep the suspension module suspended stably.
The magnetic levitation device according to claim 1, wherein the first magnetic polarity is the same as the third magnetic polarity, and the second magnetic polarity is the same as the fourth magnetic polarity;

or:

The first magnetic polarity is opposite to the third magnetic polarity, and the second magnetic polarity is opposite to the fourth magnetic polarity.
The magnetic levitation device according to claim 1, characterized in that: the base module comprises a first magnetic shielding plate (5) and a bottom plate (6), and the first magnetic shielding plate (5) is located on the bottom plate (6) Above, an equipment installation space is formed between the first magnetic shielding plate (5) and the bottom plate (6); the first magnet (1) is arranged above the first magnetic shielding plate (5); the The control module includes a float deflection sensor, an electromagnet (3) and a control circuit (4), and the float deflection sensor and the electromagnet (3) are arranged above the first magnetic shielding plate (5), and the control circuit (4) arranged between the first magnetic shielding plate (5) and the bottom plate (6);

Or: the suspension module includes a second magnetic shielding plate (7), and the second magnetic shielding plate (7) is located above the second magnet (2).
The magnetic levitation device according to claim 3, characterized in that the float deviation measuring sensor is a Hall sensor.
The magnetic levitation device according to any one of claims 1 to 4, characterized in that: the first magnet (1) is a single ring magnet, or at least three independent magnets are arranged in a ring shape;

The second magnet (2) is a columnar magnet, or a ring magnet, or a spherical magnet;

The ring magnet is a single ring magnet, or at least three independent magnets are arranged in a ring shape.
A magnetic levitation device, characterized in that it includes a base module, a levitation module and a control module;

The base module comprises an axially magnetized third magnet (8);

The suspension module includes a radially magnetized fourth magnet (9);

The upper surface of the third magnet (8) exhibits fifth magnetic polarity, the lower surface exhibits sixth magnetic polarity, and the fifth magnetic polarity is opposite to the sixth magnetic polarity;

The inner side of the fourth magnet (9) exhibits the seventh magnetic polarity, the outer side exhibits the eighth magnetic polarity, and the seventh magnetic polarity is opposite to the eighth magnetic polarity;

The suspension module can be suspended above the base module; the control module is used to keep the suspension module suspended stably.
The magnetic levitation device according to claim 6, wherein the fifth magnetic polarity is the same as the seventh magnetic polarity, and the sixth magnetic polarity is the same as the eighth magnetic polarity;

or:

The fifth magnetic polarity is opposite to the seventh magnetic polarity, and the sixth magnetic polarity is opposite to the eighth magnetic polarity.
The magnetic levitation device according to claim 6, characterized in that: the base module comprises a first magnetic shielding plate (5) and a bottom plate (6), and the first magnetic shielding plate (5) is located on the bottom plate (6) Above, an equipment installation space is formed between the first magnetic shielding plate (5) and the bottom plate (6); the third magnet (8) is arranged above the first magnetic shielding plate (5); the The control module includes a float deflection sensor, an electromagnet (3) and a control circuit (4), and the float deflection sensor and the electromagnet (3) are arranged above the first magnetic shielding plate (5), and the control circuit (4) arranged between the first magnetic shielding plate (5) and the bottom plate (6);

Or: the suspension module includes a second magnetic shielding plate (7), and the second magnetic shielding plate (7) is located above the fourth magnet (9).
The magnetic levitation device according to claim 8, characterized in that the float deviation measuring sensor is a Hall sensor.
The magnetic levitation device according to any one of claims 6 to 9, characterized in that: the third magnet (8) is a columnar magnet or a ring magnet; the ring magnet is a single ring magnet, or consists of at least three independent The magnets are arranged in a ring;

or:

The fourth magnet (9) is a single ring magnet, or at least three independent magnets are arranged in a ring shape.