CN220440578U

CN220440578U - Magnetic levitation device

Info

Publication number: CN220440578U
Application number: CN202320642628.6U
Authority: CN
Inventors: 张雨飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-07
Filing date: 2023-03-28
Publication date: 2024-02-02
Anticipated expiration: 2033-03-28

Abstract

A magnetic levitation device has a levitation device and a levitation body, wherein the levitation body is levitated by the levitation device. The suspension comprises a housing and a magnetic member, wherein the housing and the magnetic member are arranged to be relatively movable, and the relative movement of the magnetic member and the housing is guided by a linear guide mechanism provided in the suspension. The linear guide mechanism is formed on the housing and/or the magnetic member. According to the utility model, the magnetic piece capable of moving linearly or vertically is arranged in the suspension body, so that self-lifting suspension or landing of the suspension body relative to the suspension body base can be simply realized without arranging a lifting mechanism in the suspension body base. This not only has extremely strong visual effects and a sense of curiosity, but also allows the base of the suspension to remain in an original compact or miniaturized flat configuration.

Description

Magnetic levitation device

Technical Field

The utility model relates to a magnetic levitation device.

Background

The existing magnetic suspension device generally comprises a suspension device and a suspension body, wherein the suspension device is generally in the form of a base or a hanging bracket, and the suspension body can be in various suitable forms such as a globe, a Bluetooth sound box, a moon lamp, a flowerpot, a ornament and the like. Suspension/landing of the suspension relative to the suspension vessel may be performed manually or automatically. CN112228734A, CN112087163A, CN110748563A, CN102315805A, CN102570927A, CN207202600U et al disclose that a lifting mechanism is arranged in the base of the suspension device to realize automatic suspension/landing of the suspension. The provision of a lifting mechanism within the base of the suspension necessarily suffers from the dual constraints of space and cost.

Disclosure of Invention

The object of the utility model is to provide a magnetic levitation device which enables automatic levitation or landing of a levitation body in a simple manner.

According to the present utility model, there is provided a magnetic levitation device having a levitator and a levitation body, wherein the levitation body is levitatable by the levitator, the levitation body comprises a housing and a magnetic member, wherein the housing and the magnetic member are arranged to be relatively movable, and the relative (linear) movement of the magnetic member and the housing is guided by a linear guide mechanism provided in the levitation body, the linear guide mechanism being formed on the housing and/or the magnetic member.

According to the utility model, the housing is preferably a closed or substantially closed housing, more preferably a sphere or a box, such as a transparent or opaque sphere.

According to the utility model, the magnetic element preferably always moves within the housing. Of course, the magnetic element may also protrude from the housing, for example upwards and/or downwards. In the case of a downwardly extendable housing, the magnetic element may, for example, serve as a hidden display, and the suspension may then serve as a storage case.

According to the present utility model, a motor for providing a driving force for the relative movement of the magnetic member and the housing may be further included. In this case, a transmission mechanism for transmitting the driving force of the motor to the magnetic member or the housing may be generally included.

According to the utility model, a limiting mechanism may also be included for limiting the upper and/or lower limits of movement of the magnetic member relative to the housing.

According to the utility model, the linear guide mechanism is preferably a straight cylinder formed on the housing, the magnetic member being located in the straight cylinder.

In the case of a straight cylinder guide, it may be further preferred that the magnetic element forms a piston-type vacuum-pumping mechanism with the straight cylinder. Alternatively, the straight cylinder may be formed with (upper or lower) stopper, with the compression spring being located between the stopper and the magnetic member. Therefore, the motor can be omitted to realize automatic lifting suspension of the suspension body.

Of course, other linear guide mechanisms such as lead screws or the like may be employed to mate with nuts provided on the magnetic member, or vice versa.

According to the utility model, the housing may also be provided with positioning marks for indicating the direction of linear movement of the linear movement mechanism or the corresponding position of the magnetic element.

The suspension may be provided with electrical devices such as sound and light emitting devices, and wireless or wired charging devices.

According to the utility model, the suspension may take the form of a base over which the suspension is able to suspend. In this case, the upper surface of the base is preferably provided with a positioning centre point, over which the magnetic element of the suspension can be suspended when the base is placed horizontally.

According to the utility model, the suspension may also take the form of a hanger, the suspension being able to suspend below the highest point of the hanger.

According to the utility model, the magnetic piece capable of moving linearly or vertically is arranged in the suspension body, so that self-lifting suspension or landing of the suspension body relative to the suspension body base can be simply realized without arranging a lifting mechanism in the suspension body base. This not only has extremely strong visual effects and a sense of curiosity, but also allows the base of the suspension to remain in an original compact or miniaturized flat configuration.

Drawings

Fig. 1 to 3 are schematic views of a suspension body and a magnetic levitation apparatus using the same according to a first embodiment of the present utility model.

Fig. 4 to 6 are schematic views of a suspension body and a magnetic levitation apparatus using the same according to a second embodiment of the present utility model.

Fig. 7-8 are schematic views of a variant of the transmission of a suspension according to a second embodiment of the utility model.

Fig. 9-10 are schematic views of another variant of the transmission of the suspension according to the second embodiment of the utility model.

Detailed Description

The utility model will be further described with reference to the following examples and drawings, which are to be understood by those skilled in the art as being provided for a better understanding of the utility model and are not to be construed as limiting in any way. For example, the suspensions described in the following embodiments are used for a base type magnetic repulsive-force type suspension, but may be applied to a hanger type suspension or a magnetic attractive-force type magnetic levitation device.

The magnetic levitation apparatus of the present utility model generally includes a levitation device (or may also be referred to as a "magnetic levitation supporting mechanism") and a levitation body (or may also be referred to as a "object to be levitated") by which the levitation body can be stably levitated in the air. The specific structure and operation principle of such magnetic levitation devices are well known in the art and will not be described in detail herein for the sake of brevity; see, for example, CN100544183C, CN105790641B, CN112086312a, US7505243B2, etc., all of which are incorporated herein by reference in their entirety. The suspension is typically in the form of a base or cradle in which are located magnetic assemblies (e.g. permanent magnet core magnets), sensors (e.g. hall sensors) and control elements such as solenoids etc. The suspension is then provided with magnetic elements such as permanent magnet cylindrical magnets.

Fig. 1 shows a schematic cross-sectional structure of a suspension LO according to a first embodiment of the utility model. The suspension LO comprises a spherical shell 10, the bottom of which is optionally provided with a positioning recess 11. A vertical guide cylinder 12 is fixedly arranged in the shell 10. The central symmetry axis of the guide cylinder 12 is vertically aligned with the positioning recess 11. The upper and lower parts of the guide cylinder 12 are optionally further provided with ventilation holes 13 and 14.

A cylindrical magnetic member 20 is disposed within the guide cylinder 12 and is in close mating relationship with the inner wall of the guide cylinder 12, optionally by means of a sealing ring 21 located on its outer circumferential wall. A compression spring 15 is optionally provided between the magnetic member 20 and the top cover 15 of the guide cylinder 12.

Fig. 2 shows in cross-section the suspension LO placement schematic drawing when on a base LB as a suspension. As shown, the upper surface of the base LB is optionally provided with a positioning protrusion P, which is inserted into the positioning recess 11 of the suspension LO to thereby perform an initial positioning function.

When the levitation body LO is placed on the base LB as shown in fig. 2, the magnetic member 20 automatically rises from the bottom of the guide cylinder 12 shown in fig. 1 to a set levitation height shown in fig. 2 (the set levitation height depends on the specific setting of the device itself) and stably levitates at the equilibrium position due to repulsive force generated by a magnetic component such as a ring magnet (not shown) in the base LB against the magnetic member 20 in the levitation body LO. At this time, for example, in the case where the lower vent hole 14 is eliminated, even if the top cover 15 of the guide cylinder 12 and the spring 15 are also eliminated, the space below the magnetic member 20 in the guide cylinder 12 forms an approximately vacuum state due to the vacuuming action of the magnetic member 20 with the seal ring 21 as a piston. Next, the housing 10 of the suspension LO will automatically rise due to the vacuum effect until the bottom of the guide cylinder 12 substantially contacts the magnetic member 20, as shown in fig. 3. In addition, due to the vacuum damping effect, the suspension body LO can be lifted from the base LB.

In fig. 2 it is also possible to retain both the top cover 15, the spring 16, the upper and lower ventilation holes 13 and 14 and optionally the sealing ring 21, while the housing 10 of the suspension LO is still automatically raised to the position shown in fig. 3 due to the pressure exerted by the spring 16 on the top cover 15.

Of course, it will be appreciated by those skilled in the art that the piston vacuum action and the spring pressure action described above can also be used in combination as a relative return mechanism for the housing 10 and the magnetic member 20. In addition, other suitable elastic return mechanisms may be used. The return mechanism may be manually operated without using an elastic automatic return mechanism, and for example, an elastic engagement mating mechanism may be provided on each of the guide cylinder and the magnetic member 20 as a linear guide mechanism, and the engagement and disengagement of the two mechanisms may be achieved by applying an external force (for example, pressing down the housing 10). In addition, other suitable linear guide mechanisms other than guide cylinders, such as guide rods, etc., may be used.

Fig. 4 shows a schematic cross-sectional structure of a suspension LO according to a second embodiment of the utility model. The suspension LO comprises a spherical shell 10, the bottom of the housing is optionally provided with a positioning recess 11. A cylindrical bracket 17 is fixedly arranged in the shell 10, and a motor 18 with a hollow threaded rotating shaft is fixedly arranged on the bracket 17. The motor 18 is fixed to the bracket 17 by a housing, in which a hollow screw-threaded rotation shaft is vertically arranged in vertical alignment with the positioning recess 11.

The cylindrical magnetic member 20' is disposed within the bracket 17 and fixedly mounts thereon a threaded post 22. The threaded post 22 extends upwardly from the bracket 17 and passes through the hollow threaded rotation shaft of the motor 18 in a threaded engagement.

Fig. 5 shows in a sectional view a schematic view of a suspension LO placed on a base LB as a suspension. As shown, the upper surface of the base LB is optionally provided with a positioning protrusion P which is inserted into the positioning recess 11 of the suspension LO, thereby performing an initial positioning function.

When the levitation body LO is placed on the base LB as shown in fig. 6, the magnetic member 20' is positioned at a set levitation height by an initial setting or driving of the motor 18, and at this time, the magnetic member 20' is stably levitated at the equilibrium position due to repulsive force generated by a magnetic component such as a ring magnet (not shown) in the base LB to the magnetic member 20' in the levitation body LO. Next, the hollow threaded rotation shaft of the motor 18 is driven to rotate, for example, by a remote switch (not shown) provided on the base LB or a remote controller, so that the motor 18 drives the housing 10 of the suspension LO to rise up and away from the base LB rotationally along the threaded post 22 on the magnetic member 20', until the bottom of the housing 10 approaches the magnetic member 20', as shown in fig. 6. Thereafter, the motor 18 may be controlled to turn over to lower the housing 10 to a desired height or initial landing position as shown in fig. 5. In addition, due to the rotational lifting movement of the housing 10, the suspension body LO can be rotated in the horizontal direction when lifted from the base, thereby providing special visual effects.

Fig. 7 is a schematic view of a variant of the suspension according to a second embodiment of the utility model, in which the transmission is different from the embodiment shown in fig. 4, the others being unchanged.

As shown in fig. 7, the motor 18 'fixed to the bracket 17 is a general motor having a rotation shaft 19' extending vertically downward. The housing of the motor 18 'is still fixed to the support 17 but is offset parallel to the threaded post 22 of the magnetic member 20'. The rotation shaft 19 'is fixed with the gear 101, the gear 101 is meshed with the transmission gear 102, and the transmission gear 102 is in threaded fit connection with the threaded post 22 of the magnetic member 20' passing therethrough. In this case, the motor 18' can also drive the housing 10 of the suspension LO to automatically lift, as shown in fig. 8.

Fig. 9 is a schematic view of a variant of the suspension according to a second embodiment of the utility model, in which the transmission is different from the embodiment shown in fig. 4 and 7, the others being unchanged.

As shown in fig. 9, the cylindrical holder 17 is fitted with an outer cylinder 103 which can slide up and down along the cylindrical holder, and the outer cylinder 103 is further provided with a guide rib 104 so that the outer cylinder 103 can move up and down only relative to the cylindrical holder 17 and cannot rotate relatively. The motor 18 'fixed to the outer cylinder 103 is also a general motor having a rotation shaft 19' extending vertically downward. The rotation shaft 19 'is vertically aligned with and fixed to the threaded post 22 of the magnetic member 20'. The nut 105 is secured to the top of the tubular support 17 and forms a threaded engagement with the threaded post 22 of the magnetic member 20' passing therethrough. In this case, the motor 18' can also drive the housing 10 of the suspension LO to automatically lift, as shown in fig. 10.

Those skilled in the art will appreciate that other transmission variations are possible where an electric motor is used. The linear guide mechanism is not limited to the screw or nut type, and for example, a cylinder used in a pneumatic driving system may be used as the linear guide mechanism.

Although not specifically shown, the suspension may be provided with electrical equipment such as sound and light. Furthermore, the suspension may be provided with a wireless or wired charging device or the like for powering the power consuming devices therein. For example, in the case of wireless power, a wireless power receiving coil may be provided in the suspension to cooperate with a wireless power transmitting coil provided in the base.

Furthermore, although not specifically shown, the suspension of the present utility model may also include a limiting mechanism for limiting the upper and/or lower limits of movement of the magnetic member relative to the housing. For example, a travel switch may be provided for the motor to automatically stop operation at a predetermined position.

It will be appreciated by those skilled in the art that the above illustrated embodiments are provided for a better understanding of the utility model and are not intended to be limiting in any way. For example, the directional terminology mentioned above is for the purpose of the figures only. In addition, the shell 10 of the suspension LO of the present utility model is not limited to such a closed spherical shell structure, and other shapes such as square boxes or any other suitable closed or semi-closed or open shape may be used. In addition, the housing 10 may be made of transparent, opaque or opaque materials. Furthermore, the magnetic member 20 or 20' of the present utility model is not limited to being always located in the housing 10, and may be exposed upward or downward from the housing 10 during movement.

Claims

1. A magnetic levitation apparatus having a levitator and a levitation body, wherein the levitation body is levitatable by the levitator, characterized in that the levitation body comprises a housing and a magnetic element, wherein the housing and the magnetic element are arranged to be relatively movable and the relative movement of the magnetic element and the housing is guided by a linear guide mechanism arranged in the levitation body, the linear guide mechanism being formed on the housing and/or the magnetic element.

2. A magnetic levitation apparatus according to claim 1, further comprising a motor for providing a driving force for the relative movement of the magnetic member and the housing.

3. A magnetic levitation apparatus according to claim 2, further comprising a transmission mechanism for transmitting the driving force of the motor to the magnetic member or the housing.

4. A magnetic levitation apparatus according to claim 1, further comprising a limiting mechanism for limiting the upper and/or lower limits of movement of the magnetic member relative to the housing.

5. A magnetic levitation apparatus according to claim 1, wherein the linear guide mechanism is a straight cylinder formed on the housing, and the magnetic member is positioned in the straight cylinder.

6. The magnetic levitation apparatus of claim 5, wherein the magnetic member and the cylinder form a piston vacuum mechanism.

7. The magnetic levitation apparatus of claim 5, wherein the straight cylinder is formed with a stopper, and the compression spring is positioned between the stopper and the magnetic member.

8. A magnetic levitation apparatus according to claim 1, wherein the housing is further provided with a positioning mark for indicating a direction of linear motion of the linear motion mechanism or a corresponding position of the magnetic member.

9. A magnetic levitation apparatus according to claim 1, wherein the levitation means is in the form of a base over which the levitation means can be levitated.

10. A magnetic levitation apparatus according to claim 9, wherein the upper surface of the base is provided with a positioning centre point or mark, and the magnetic element of the levitation body is capable of levitation directly above the positioning centre point when the base is placed horizontally.