CN216490268U - Repulsion type magnetic suspension device - Google Patents

Abstract

The utility model provides a repel type magnetic force suspension device, it includes the base and suspends the suspension body in the balanced position above the base, the base includes the first magnet of the cavity form that a cavity form magnet or at least three magnet enclose, it has the upper and lower surface of different magnetism, set up sensor and solenoid array in the central point department that first magnet encloses, the suspension body includes the second magnet similar with first magnet structure and set up in its central point department and with the synchronous quilt of second magnet maintenance, first magnet upper surface is the same with second magnet lower surface magnetism, the skew of sensor sensing suspension body relative balanced position in the horizontal direction and make solenoid array produce control magnetic force in order to revise its skew; when downward external force is applied to the suspension body or a heavy object is stacked when the suspension body is balanced, the repellent type magnetic suspension device can quickly reach another balance point and stably suspend the suspension body.

Description

Repulsion type magnetic suspension device

Technical Field

The utility model relates to a magnetic suspension equipment technical field especially relates to a repel type magnetic force suspending device.

Background

Magnetic levitation products are not in direct contact with each other under the action of magnetic force between two magnetic parts, so that wonderful and fantastic visual angle impact is generated, and the magnetic levitation products are popular among people and are often made into artware, display racks and atmosphere decorating parts. And the common product that can be divided into and inhale the product and hang down, it utilizes the magnetic attraction between the magnetic part to inhale the product to make its gravity that suspends the magnetic part suspend in fixed magnetic part below, and compare in and inhale the product on, hang the product more favoured by people down, hide fixed magnetic part, just can see the illusion scene that relies on the space suspension, hang the product down and utilize the magnetic repulsion between the magnetic part to balance off gravity, because except considering the balance in the vertical direction, still need control horizontal direction's skew and upset, therefore the technical degree of difficulty is higher.

Chinese patent CN1729614B "apparatus and method for levitating a magnetic element" has disclosed a solution for levitating a magnetic member, in which a magnetic levitation apparatus includes means for generating a static magnetic field providing a position dependent potential energy for interaction with the magnetic element, the static magnetic field providing an equilibrium position in which the potential energy decreases with displacement of the magnetic element away from the equilibrium position in a direction along an unstable axis, and the potential energy increases with displacement of the magnetic element away from the equilibrium position in any direction perpendicular to the unstable axis. The apparatus further comprises means for generating a feedback signal indicative of the position of the magnetic element on the unstable axis and control means for directing the magnetic element to the equilibrium position by providing a quadrupole control field at the equilibrium position in response to the feedback signal. While similar devices apply pressure vertically downwards when the levitation is stable or additionally increase the gravity of the magnetic element, the system is difficult to keep stable, i.e. not strong.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a repel type magnetic force suspending device, aims at solving the not strong technical problem of current magnetic suspension equipment stability.

In order to achieve the above object, the present invention provides a repulsion type magnetic suspension apparatus, which includes a base and a suspension body suspended at a balance position above the base, wherein the base includes a hollow magnet or a hollow first magnet surrounded by at least three magnets, the hollow first magnet has upper and lower surfaces with different magnetism, a sensor disposed at a central position surrounded by the first magnet, and an electromagnetic coil array;

the suspension body comprises a hollow magnet or a hollow second magnet surrounded by at least three magnets, an upper surface and a lower surface which have different magnetism, and a sensed body which is arranged at the central position surrounded by the second magnet and keeps synchronous with the second magnet;

the upper surface of the first magnetic body and the lower surface of the second magnetic body have the same magnetism, and the sensor senses the offset of the suspension body relative to the balance position in the horizontal direction and enables the electromagnetic coil array to generate control magnetic force to correct the offset;

wherein the sensor is a magnetoelectric sensor, and the sensed body is a magnetic body, or

The sensor is a photoelectric sensor which comprises at least one light-emitting element and at least one light receiver element, and the sensed object is a light reflector.

Preferably, when the sensor is a magnetoelectric sensor, the suspension body further comprises a fixed iron sheet, and the second magnet and the magnetic body are fixed below the iron sheet so as to keep the second magnet and the magnetic body synchronous.

Preferably, the magnetic body has an upper surface and a lower surface with opposite magnetism, the lower surface has the same magnetism as the lower surface of the second magnetic body, and the central axis of the first magnetic body generates a vertical downward magnetic attraction force to the magnetic body.

Preferably, when the sensor is a photoelectric sensor, the photoelectric sensor and the light reflector are located on the same vertical axis, and the light reflector is radially larger than the photoelectric sensor.

Preferably, the suspension body further comprises a transparent plate, and the second magnet and the light reflector are arranged above the transparent plate in an adhesion mode.

Preferably, an even number of auxiliary magnets are arranged on the periphery of the first magnet, extend radially outwards, and have the same magnetism on the upper surface as that on the lower surface of the second magnet.

Preferably, the first magnet is surrounded by four identical bar magnets, and the electromagnetic coil array is four electromagnetic coils which are correspondingly arranged outside the bar magnets.

Preferably, the electromagnetic coil array and the sensor are electrically connected, and the controller is arranged in the base or in a power adapter connected with an external power supply and arranged outside the base.

Compared with the prior art, the utility model discloses real beneficial effect lies in:

when the suspension body is suspended at a balance position in the vertical direction of the central position, the suspension body is subjected to downward gravity and upward magnetic repulsion force of the first magnet to the suspension body, when the suspension body is deviated in the horizontal direction, the sensor senses the deviation and enables the electromagnetic coil array to generate control current to correct the deviation, and when downward external force or stacked heavy objects are applied to the suspension body when the suspension body is balanced, the repulsion type magnetic suspension device can quickly reach another balance point and enable the suspension body to be stably suspended.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the repulsion type magnetic suspension apparatus of the present invention, in which the first magnet is a hollow magnet;

FIG. 2 is a bottom view of the suspension of FIG. 1;

FIG. 3 is a schematic structural diagram of the sensor of FIG. 1 replaced with an optoelectronic sensor;

fig. 4 is a schematic structural view of an embodiment of the repulsion type magnetic suspension apparatus of the present invention, in which the first magnet is formed by four bar-shaped magnets to form a hollow shape;

FIG. 5 is a schematic structural diagram of the sensor of FIG. 4 replaced with an optoelectronic sensor;

fig. 6 is a schematic structural view of an embodiment of the first magnet of the repulsive magnetic suspension apparatus of the present invention, which is formed by six strip-shaped magnets enclosed into a hollow shape.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements, parts, or components having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the embodiment shown in fig. 1 and 2, the repulsion type magnetic levitation apparatus comprises a base 1 and a levitation body 2 levitated at a balance position above the base 1, wherein the base 1 comprises a first magnet 11 of a vertical hollow magnet having upper and lower surfaces with different magnetism, a sensor arranged at a central position surrounded by the first magnet 11, and an electromagnetic coil array, and the electromagnetic coil array is four electromagnetic coils 12 respectively arranged at the outer side of the first magnet 11.

The suspension body 2 includes a second magnet 21 of a vertical hollow magnet having upper and lower surfaces of different magnetism, and a sensed body provided at a central position surrounded by the second magnet 21 and kept in synchronization with the second magnet 21.

The upper surface of the first magnet 11 is magnetically identical to the lower surface of the second magnet 21, and the length from the peripheral side to the center position of the second magnet 21 in the horizontal direction is equal to or longer than the length from the peripheral side to the center position of the first magnet 11. The controller 14 is arranged in the base 1, the sensor senses the offset of the suspension body 2 in the horizontal direction relative to the equilibrium position and transmits a signal to the controller 14, and the controller 14 controls the corresponding electromagnetic coil 12 to generate a control magnetic force to correct the offset of the suspension body 2.

The sensor is a magnetoelectric sensor, and the sensed object is a magnetic body 22A. The suspension 2 further includes a fixed iron piece 23A, and the second magnet 21 and the magnetic body 22A are fixed below the iron piece 23A to keep the second magnet 21 and the magnetic body 22A synchronized. The magnetoelectric sensors are preferably hall sensors 13A, the number of which is three, or four, and the hall sensors 13A and the magnetic body 22A are arranged at the center position of the first magnet 11, and the hall sensors 13A and the magnetic body 22A are on the same vertical axis when the suspension 2 is suspended at the equilibrium position. When the second magnet 21 in the suspension 2 drives the synchronous magnetic body 22A to shift, the hall sensor 13A senses the shift, and finally the controller 14 controls the corresponding electromagnetic coil 12 to generate a control magnetic force to pull the magnetic body 22A back to the equilibrium position, i.e. to pull the suspension 2 to the equilibrium position as a whole.

The magnetic body 22A has an upper surface and a lower surface which are opposite in magnetism, the magnetism of the lower surface is the same as that of the lower surface of the second magnet 21, and a vertical downward magnetic attraction force is generated on the central axis of the first magnet 11 to the magnetic body 22A. The stability of the suspension 2 is increased by the upward magnetic repulsive force of the first magnet 11 acting on the second magnet 21 and the downward magnetic attractive force of the first magnet 11 acting on the magnetic body 22A. When the magnetic property of the lower surface of the magnetic body 22A is opposite to the magnetic property of the lower surface of the second magnet 21, the first magnet 11 generates an upward magnetic repulsion force for both the second magnet 21 and the magnetic body 22A, thereby increasing the levitation height.

Fig. 3 is a schematic diagram of the embodiment of fig. 1 when the sensor is a photoelectric sensor 13B, and when the sensor is the photoelectric sensor 13B, the sensor includes at least one light-emitting element and at least one light-receiving element, and the sensed object is a light reflector 22B. The photoelectric sensor 13B and the light reflector 22B are located on the same vertical axis, and the light reflector 22B is radially larger than the photoelectric sensor 13B, in this embodiment, the photoelectric sensor 13B is columnar, the light reflector 22B is in a circular cake shape, two circle centers are located on the same vertical axis, and the radius of the light reflector 22B in the horizontal direction is larger than that of the photoelectric sensor 13B, so that the photoelectric sensor 13B can easily sense an offset signal when the suspension 2 drives the light reflector 22B to offset the equilibrium position. The suspension 2 further includes a transparent plate 23B, and the second magnet 21 and the light reflector 22B are disposed above the transparent plate 23B by bonding, and the transparent plate 23B is preferably made of acrylic material. Except that the other structures are the same as those shown in fig. 1.

Of course, the second magnet 21 and the light reflector 22B may be bonded to the lower side of the transparent plate 23B so as not to be affected by the transparency of the transparent plate 23B, or a non-transparent lightweight sheet may be used.

Fig. 4 is a modification of fig. 1, in which the first magnet 11 and the second magnet 21 are surrounded by four bar magnets and have vertical hollow frames, and in this embodiment, the first magnet 11 is surrounded by four identical bar magnets, and the electromagnetic coil array is four electromagnetic coils 12 correspondingly disposed outside the bar magnets. Except that the other structures are the same as those shown in fig. 1.

In some embodiments, an even number of auxiliary magnets 15 are disposed around the first magnet 11 and extend radially outward, and the magnetic property of the upper surface of the auxiliary magnets is the same as that of the lower surface of the second magnet 21. In the embodiment of fig. 3, four bar-shaped magnets extend outwards from the connection of the four magnets, and two magnets opposite to each other are point-symmetric with respect to the central position. The vertical upward magnetic repulsion of the base 1 to the suspension 2 can be increased by the arrangement of the auxiliary magnet 15.

Fig. 5 is a schematic diagram of the embodiment of fig. 4 when the sensor is a photoelectric sensor 13B. When the sensor is a photoelectric sensor 13B, it includes at least one light emitting element and at least one light receiving element, and the sensed object is a light reflecting body 22B.

Fig. 6 is a view showing that the four bar magnets in fig. 4 are replaced by six bar magnets, and the six bar magnets are sequentially connected into a six-ring.

The shape of the first magnet 11 and the shape of the second magnet 21 in the above embodiments do not require that the shapes are both hollow magnets or hollow frame magnets composed of four bar magnets, and the suspending elements 2 and the bases 1 can be used in combination as long as the suspending effect described in the above embodiments can be achieved.

In order to prevent the magnetic member in the base 1 from interfering with the controller 14 or to make the repulsive-type magnetic levitation device oversized, the controller 14 may be selectively disposed in a power adapter connected to an external power supply outside the base 1 or another controller 14 is connected, when the controller 14 is disposed in the power adapter, the power adapter may be spaced apart from the inside of the power adapter, the power adapter may be disposed on one side, the controller 14 may be disposed on the other side, and current may flow from the power adapter to the controller 14 and may be connected to the electromagnetic coil 12 and the hall sensor 13A in the base 1 through a line.

What just go up be the utility model discloses a part or preferred embodiment, no matter be characters or the drawing can not consequently restrict the utility model discloses the scope of protection, all with the utility model discloses a holistic thought down, utilize the equivalent structure transform that the contents of the description and the drawing do, or direct/indirect application all includes in other relevant technical field the utility model discloses the within range of protection.

Claims (8)

1. The utility model provides a repel type magnetic force suspension device, includes the base and suspends the suspensoid in the equilibrium position above the base, its characterized in that:

the base comprises a hollow magnet or a hollow first magnet surrounded by at least three magnets, an upper surface and a lower surface which have different magnetism, a sensor arranged at the central position surrounded by the first magnet and an electromagnetic coil array;

the suspension body comprises a hollow magnet or a hollow second magnet surrounded by at least three magnets, an upper surface and a lower surface which have different magnetism, and a sensed body which is arranged at the central position surrounded by the second magnet and keeps synchronous with the second magnet;

the upper surface of the first magnetic body and the lower surface of the second magnetic body have the same magnetism, and the sensor senses the offset of the suspension body relative to the balance position in the horizontal direction and enables the electromagnetic coil array to generate control magnetic force to correct the offset;

wherein the sensor is a magnetoelectric sensor, and the sensed body is a magnetic body, or

The sensor is a photoelectric sensor which comprises at least one light-emitting element and at least one light receiver element, and the sensed object is a light reflector.

2. The repulsive magnetic levitation apparatus of claim 1, wherein the sensor is a magnetoelectric sensor, the levitation body further comprises a fixed iron piece, and the second magnet and the magnetic body are fixed under the iron piece to keep the second magnet and the magnetic body in synchronization.

3. The repulsive magnetic levitation apparatus according to claim 2, wherein the magnetic body has upper and lower surfaces opposite in magnetism, and the lower surface has the same magnetism as the lower surface of the second magnetic body, and the central axis of the first magnetic body generates a vertically downward magnetic attraction force to the magnetic body.

4. The repulsion type magnetic suspension apparatus according to claim 1, wherein the sensor is a photoelectric sensor, the photoelectric sensor and the light reflector are located on the same vertical axis, and the light reflector is radially larger than the photoelectric sensor.

5. The repulsive magnetic levitation apparatus of claim 4, wherein the levitation body further comprises a transparent plate, and the second magnet and the light reflector are adhesively disposed above the transparent plate.

6. The repulsion type magnetic levitation apparatus as recited in claim 1, wherein an even number of auxiliary magnets are provided around the first magnet, and extend radially outward, and the magnetic property of the upper surface of the auxiliary magnets is the same as that of the lower surface of the second magnet.

7. The repulsion type magnetic suspension apparatus as claimed in claim 1, wherein the first magnet is surrounded by four identical bar magnets, and the electromagnetic coil array is four electromagnetic coils correspondingly disposed outside the bar magnets.

8. The repulsive magnetic levitation apparatus of any one of claims 1 to 7, further comprising a controller electrically connected to the electromagnetic coil array and the sensor, the controller being disposed within the base or disposed within a power adapter external to the base connected to an external power source.

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