Magnetic suspension device and suspension body thereof

Abstract

The invention discloses a magnetic suspension device and a suspension body thereof. The suspension body comprises a shell provided with a transmission shaft and a guide matching part; the magnetic part is in matched connection with the transmission shaft in a linear displacement manner in the axial direction of the transmission shaft, and is provided with a guide matching part which forms a shape matching relationship with the guide matching part of the shell; therefore, the linear displacement relative to the shell along the axial direction of the transmission shaft is realized through the rotary driving of the transmission shaft and the shape matching of the guide matching part of the shell and the guide matching part of the magnetic piece. According to the invention, the lifting mechanism which can be driven by the common motor is arranged in the suspension body, so that the automatic ascending and / or descending of the suspension body relative to the suspension device base can be simply and reliably realized. The suspension device base not only has an extremely strong visual impact effect, but also can keep an original compact or miniaturized flat structure due to the fact that a lifting mechanism does not need to be arranged in the suspension device base.

Description

Technical Field

[0001] The present invention generally relates to a magnetic levitation device, and more particularly to a suspension body thereof. Background Art

[0002] Existing magnetic levitation devices usually include a levitator and a suspension body. The levitator is generally in the form of a base or a hanger, and the suspension body can be in various suitable forms such as a globe, a Bluetooth speaker, a moon lamp, a flower pot, an ornament, etc. The suspension body can be suspended / landed relative to the levitator by manual or automatic means. CN112228734A, CN112087163A, CN110748563A, CN102315805A, CN102570927A, CN207202600U, etc. all disclose that a lifting mechanism is set in the levitator base to realize the automatic suspension / landing of the suspension body. Setting a lifting mechanism in the levitator base is bound to suffer from the dual constraints of space and cost.

[0003] In the Chinese patent application CN2023103172526 previously filed by the inventor team, improvements were made to the structure of the suspension for the first time, thereby enabling automatic suspension of the suspension relative to a conventional levitator. Summary of the invention

[0004] The object of the present invention is to provide a suspension body for a magnetic suspension device, which can realize automatic suspension and / or landing relative to a conventional suspension device by using a common motor.

[0005] According to a first aspect of the present invention, there is provided a suspension body for a magnetic suspension device, comprising:

[0006] A housing is provided with a transmission shaft and a guide fitting portion; and

[0007] The magnetic component can be linearly displaced along the axial direction of the transmission shaft to form a mating connection with the transmission shaft, and is provided with a guide fitting portion that forms a shape-fitting relationship with the guide fitting portion of the shell. The magnetic component can be linearly displaced relative to the shell along the axial direction of the transmission shaft through the rotational drive of the transmission shaft and the shape matching between the guide fitting portion of the shell and the guide fitting portion of the magnetic component.

[0008] According to one embodiment of the suspension of the present invention, the guide fitting portion of the shell may include a threaded segment, and the guide fitting portion of the magnetic component also includes a threaded segment. The threaded segment of the guide fitting portion of the shell and the threaded segment of the guide fitting portion of the magnetic component form a threaded fitting relationship and can rotate relative to each other around the transmission shaft, while the transmission shaft of the shell and the magnetic component are relatively non-rotatable.

[0009] In the above embodiments, one of the threaded section of the guide matching portion of the housing and the threaded section of the guide matching portion of the magnetic member may have an internal thread, and the other may have an external thread. For example, the threaded section of the guide matching portion of the housing has an internal thread, and the threaded section of the guide matching portion of the magnetic member has an external thread.

[0010] According to another embodiment of the suspension of the present invention, the guiding fitting portion of the shell may include one of a linear guiding rib and a linear guiding groove, and the guiding fitting portion of the magnetic member includes the other of a linear guiding rib and a linear guiding groove, wherein the guiding rib is received in the guiding groove in a shape-fitting manner; the transmission shaft is formed with an external threaded portion, and the magnetic member is formed with an internal threaded portion, and the two form a threaded fitting relationship and can rotate relative to each other.

[0011] In the suspension of the present invention, the transmission shaft is usually arranged vertically. In this case, the threaded sections or guide ribs / guide grooves of each guide matching portion are also formed vertically.

[0012] The suspension of the present invention may also include a motor fixedly mounted on the housing for driving the transmission shaft to rotate. The motor has a rotating output shaft that is dynamically connected to the transmission shaft, and the rotating output shaft of the motor and the transmission shaft may be coaxially arranged or perpendicularly arranged.

[0013] The suspension of the present invention may further include an upper limit switch, a lower limit switch and a control circuit arranged on the shell. When the magnetic part is displaced to the highest position relative to the shell, the control circuit receives a signal generated by the upper limit switch and thereby controls the motor to stop running; when the magnetic part is displaced to the lowest position relative to the shell, the control circuit receives a signal generated by the lower limit switch and thereby controls the motor to stop running.

[0014] The motor may be a bidirectional motor, and when the magnetic member is at the lowest position relative to the housing, the control circuit starts the motor to rotate in a direction opposite to the direction when the magnetic member is at the highest position relative to the housing.

[0015] According to the suspension of the present invention, the transmission shaft passes through at least a portion of the height or thickness of the magnetic member during rotation, preferably substantially the entire height or thickness thereof.

[0016] The suspension of the present invention can be designed as a globe, a Bluetooth speaker, a lamp, a flower pot, a camera, an aromatherapy, an ultrasonic atomizer or a humidifier, etc. In addition, the shell of the suspension can be a closed or open shell, such as a transparent or opaque sphere or box.

[0017] According to another aspect of the present invention, there is provided a magnetic suspension device, which comprises a levitator and the above-mentioned suspension body, wherein the suspension body can be suspended by the levitator.

[0018] According to the magnetic suspension device of the present invention, when the levitator is working normally and the suspended body is in a suspended state relative to it, the position of the magnetic member or its magnet assembly relative to the levitator is constant. That is, under normal circumstances, the magnetic member or its magnet assembly will be stably suspended in a balanced position relative to the levitator, such as the base.

[0019] According to the magnetic suspension device of the present invention, the levitator can be in the form of a base, the suspension body can be stably suspended above the base, and the magnetic part of the suspension body includes a magnet assembly, and the magnet assembly is preferably located at the lower end of the magnetic part. In this case, the upper surface of the base can be optionally provided with a positioning protrusion, and the lower surface of the shell of the suspension body can be optionally provided with a positioning recess, and when the shell is placed centrally on the base, the positioning protrusion of the base is temporarily received in the positioning recess of the shell in a form-fitting manner.

[0020] The present invention provides a lifting mechanism driven by a common motor in the suspension body, thereby realizing the automatic rise and / or fall of the suspension body relative to the suspension base in a simple and reliable manner. This not only has an extremely strong visual impact, but also allows the suspension base to maintain its original compact or miniaturized flat structure because there is no need to provide a lifting mechanism in the suspension base. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a cross-sectional schematic diagram of a magnetic suspension device according to an embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A perspective diagram of the internal structure of the suspension;

[0023] Figure 3 yes Figure 2 A schematic cross-sectional view of the structure shown;

[0024] Figure 4 is Figure 3 An exploded perspective schematic diagram of the structure shown;

[0025] Figure 5 for Figure 1 A schematic cross-sectional view of the magnetic suspension device shown in a non-suspended state, wherein the suspension body is located on a base;

[0026] Figure 6 yes Figure 2 A cross-sectional schematic diagram of a variation of the structure shown;

[0027] Figure 7 is Figure 6 An exploded perspective schematic diagram of the structure shown;

[0028] Figure 8 A perspective schematic diagram of a variation of the rotational connection structure between the transmission shaft and the magnetic member;

[0029] Figure 9-11 The perspective schematic diagrams show that the suspended objects are respectively designed as a suspended flower pot, a Bluetooth speaker and a camera. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the embodiments and drawings. Those skilled in the art should understand that the embodiments and drawings are only for a better understanding of the present invention and are not intended to be limiting. For example, although the suspension described in the following embodiments is used for a base-type magnetic repulsion type levitator, it can also be applied to a hanger-type levitator or a magnetic attraction type magnetic levitation device.

[0031] The magnetic suspension device of the present invention generally includes a levitator (or also referred to as a "magnetic suspension support system or mechanism") and a suspension body (or also referred to as an "object to be suspended"), and the suspension body can be stably suspended in the air through the levitator. The specific structure and working principle of this magnetic suspension device are well known in the art, and will not be described in detail here for the sake of saving space; for example, see CN100544183C, CN105790641B, CN112086312AUS7505243B2 and CN2561163Y, etc., all of which are introduced here by reference. The levitator usually takes the form of a base or a hanger, in which a magnetic component (such as a permanent magnetic ring core magnet), a sensor (such as a Hall sensor) and a control element such as an electromagnetic coil are provided. The suspension body is provided with a magnetic part such as a permanent magnetic cylindrical magnet. In addition, the entire content of Chinese patent application CN202310317252.6 is also introduced here by reference.

[0032] Figure 1 It is a cross-sectional perspective schematic diagram of a magnetic levitation device according to an embodiment of the present invention, wherein the suspension body LO is in a completely suspended state relative to the base LB used as a levitator. The suspension body LO shown has a spherical closed shell 1, and the shell 1 can form a globe or a lampshade, etc. A cylinder 10 is fixedly arranged in the shell 1. The cylinder 10 can be formed integrally with the shell 1, or can be fixed to the shell 1 in any suitable manner. For the sake of simplicity, the magnets, sensors, control elements, etc. provided in the base LB for supporting the suspension of the suspension body LO are not specifically shown.

[0033] Figure 2 Yes Figure 1 A perspective schematic diagram of the base LB in the figure and the cylinder 10 and its associated parts behind the upper part of the shell 1 of the suspension LO, Figure 3 yes Figure 2 A schematic cross-sectional view of the structure shown, Figure 4 is Figure 3 Schematic diagram of an exploded perspective view of the structure shown.

[0034] like Figure 3 and 4 As clearly shown, a mounting seat 12 is fixedly mounted on the upper end of the cylinder 10 formed with an internal thread 11. A common bidirectional motor 31 is fixedly mounted on the mounting seat 12, and its rotation output shaft 32 extends vertically downward and engages with a transmission shaft 30 rotatably arranged relative to the mounting seat 12 to drive the transmission shaft 30 to rotate together. The lower end of the rotation output shaft 32 and the upper end of the transmission shaft 30 are respectively provided with shape matching structures so that the two are coaxial and non-rotatably engaged with each other.

[0035] An external thread 21 is formed on the outer circumference of the magnetic member 20, and a magnet assembly 22 is fixedly disposed at the bottom. The external thread 21 of the magnetic member 20 and the internal thread 11 of the cylinder 10 form a threaded matching relationship.

[0036] The central part of the magnetic member 20 is formed with a special-shaped through hole 23 that passes through from top to bottom. The outer contour of the transmission shaft 30 forms a corresponding shape match with the through hole 23, so that the transmission shaft 30 can drive the magnetic member 20 to rotate with it, and the transmission shaft 30 can also shift up and down relative to the through hole 23 of the magnetic member 20. In this way, when the rotating output shaft 32 of the motor 31 rotates and drives the transmission shaft 30 to rotate accordingly, the transmission shaft 30 also drives the magnetic member 20 to rotate accordingly; due to the thread matching relationship between the external thread 21 of the magnetic member 20 and the internal thread 11 of the cylinder 10, the magnetic member 20 will shift upward or downward relative to the cylinder 10 along the direction of the transmission shaft 30 during the rotation relative to the cylinder 10, thereby realizing the up and down displacement of the shell 1 of the suspension LO relative to the magnetic member 20.

[0037] like Figure 3 As shown, the through hole 23 also passes through the entire height or thickness of the magnet assembly 22. This structure is more conducive to increasing the displacement of the housing 1 relative to the magnetic member 20 or the magnet assembly 22, thereby facilitating increasing the visual levitation height of the suspension body LO. Of course, the magnet assembly 22 may also not be provided with a through hole, or the through hole 23 does not pass through the magnet assembly 22 and becomes a blind hole.

[0038] Figure 5 It is a cross-sectional schematic diagram when the suspension LO is initially placed on the base LB. The upper surface of the base LB can be optionally provided with a positioning protrusion, and the lower surface of the suspension LO can be optionally provided with a positioning recess, wherein the positioning protrusion can be inserted into the positioning recess, thereby assisting the initial centering of the suspension LO on the base LB.

[0039] like Figure 5As shown, when the suspension body LO is placed on the base LB, the magnetic part 20 or its magnet assembly 22 is located at the set suspension height through the initial setting or the driving of the motor 31. At this time, due to the real-time action of the suspension support system of the base LB, the magnetic part 20 or its magnet assembly 22 will be stably suspended relative to the base LB at the shown equilibrium position. Next, for example, by starting the motor 31, its output rotating shaft 32 rotates in one direction, thereby driving the transmission shaft 30 to rotate accordingly, and then driving the magnetic part 20 to rotate relative to the cylinder 10. Due to the threaded matching relationship between the magnetic part 20 and the cylinder 10, the cylinder 10 and the shell 1 will move upward relative to the stably suspended magnetic part 20 and separate from the base LB until Figure 1 After that, the motor 31 can be controlled to rotate in the reverse direction to lower the housing 1 and the cylinder 10 to the desired height or until Figure 5 Initial landing position shown.

[0040] In addition, an upper limit switch, a lower limit switch and a control circuit can be arranged on the housing 1. When the magnetic member 20 is displaced to the highest position relative to the housing 1 (corresponding to Figure 5 The control circuit receives the signal generated by the upper limit switch and controls the motor 31 to stop running; when the magnetic member 20 moves to the lowest position relative to the housing 1 (corresponding to Figure 1 The control circuit receives the signal generated by the lower limit switch and thereby controls the motor 31 to stop running.

[0041] Figure 6 yes Figure 2 A cross-sectional schematic diagram of a variation of the structure shown, Figure 7 is Figure 6 Schematic diagram of an exploded perspective view of the structure shown.

[0042] like Figure 6 and 7 As shown clearly, a cylindrical barrel 10' is integrally formed inside the housing 1 of the suspension LO, and a mounting seat 12 is fixedly mounted on the upper end. A motor 31 is fixedly mounted on the mounting seat 12, and its rotating output shaft 32 extends vertically downward and engages with the upper end of a transmission shaft 30' provided with an external thread to drive the transmission shaft 30' to rotate together. The lower end of the transmission shaft 30' is optionally rotatably arranged on the housing 1. A plurality of evenly distributed vertical guide ribs 14 are formed on the inner circumferential wall of the barrel 10'.

[0043] The outer circumference of the magnetic member 20' is formed with a plurality of vertical guide grooves 24 for receiving the corresponding guide ribs 14 on the inner circumferential wall of the cylinder 10'. A vertical through hole 23' is formed in the central portion of the magnetic member 20'. An internal thread is provided on at least a portion of the inner circumferential wall of the through hole 23', which forms a threaded mating relationship with the external thread of the transmission shaft 30'. A magnet assembly 22 is fixedly provided at the bottom of the magnetic member 20'.

[0044] When the rotating output shaft 32 of the motor 31 rotates and drives the transmission shaft 30' to rotate accordingly, due to the matching relationship between the guide groove 24 and the guide rib 14, the magnetic member 20' is not rotatable relative to the housing 1 or the cylinder 10'; however, due to the thread matching relationship between the magnetic member 20' and the transmission shaft 30', the two are relatively rotatable. In this way, when the transmission shaft 30' rotates, the magnetic member 20' will move up and down around the transmission shaft 30' along the guide rib 14 relative to the cylinder 10', thereby realizing the up and down displacement of the housing 1 of the suspension LO relative to the magnetic member 20' or the magnet assembly 22.

[0045] In the structure shown above, the rotary output shaft 32 of the motor 31 is coaxially coupled to the transmission shaft 30; however, the rotary output shaft 32 of the motor 31 may also be coupled to the transmission shaft 30 perpendicularly via a gear transmission mechanism.

[0046] exist Figure 6 and 7 In the modified structure shown, the rotation connection between the transmission shaft 30' and the magnetic member 20' can also be Figure 8 The reciprocating thread structure shown in FIG. Figure 8 As shown, the outer periphery of the transmission shaft 30" is provided with left and right threads and a transition reversing portion, and the magnetic member 20" is provided with a positioning groove 26. By means of a toggle rod 25 provided between the magnetic member 20" and the transmission shaft 30", the transmission shaft 30" can be made to rotate continuously clockwise, for example, to drive the magnetic member 20" to rotate clockwise within a certain range and then drive it to rotate counterclockwise within a certain range; that is to say, the unidirectional continuous rotation of the transmission shaft 30" can enable the magnetic member 20" to switch between bidirectional rotation as needed. In this case, the motor 31 can be replaced from a bidirectional motor to a unidirectional motor.

[0047] Suspension LO can be designed into various products according to needs. Fig. 9 The suspended body LO shown has a hemispherical shell 1 with an open upper portion, which can be used as a suspended flower pot, for example. Fig.10 The suspension LO shown has a generally spherical housing 1 with a Bluetooth speaker 16 disposed on the top. Fig.11 The suspension LO shown also has a generally spherical shell 1, in the middle of which is provided a camera 17. The suspension LO may also be provided with electrical devices such as an LED light source, an ultrasonic atomizer, and a heater, so that it may also be designed as a lamp, an aromatherapy device, an atomizer, a humidifier, and the like.

[0048] In addition, the suspension LO may also be provided with wireless or wired charging equipment to power the electrical devices therein. For example, in the case of wireless power supply, a wireless power receiving coil may be provided in the suspension LO to cooperate with a wireless power transmitting coil provided in the base LB.

[0049] Those skilled in the art should understand that the above illustrated embodiments are only used to better understand the present invention and are not used for any limiting purpose. For example, the above directional terms are only for the accompanying drawings. In addition, the shell 1 of the suspension LO of the present invention is not limited to such a spherical shell structure, and other shapes such as a square box or any other suitable closed or semi-closed or open shape can also be used. In addition, the shell 1 can be made of transparent, translucent or opaque materials.

Claims

1. A suspension body for a magnetic suspension device, comprising: The housing is provided with a transmission shaft and a guide matching portion; as well as The magnetic component can be linearly displaced along the axial direction of the transmission shaft to form a mating connection with the transmission shaft, and is provided with a guide fitting portion that forms a shape-fitting relationship with the guide fitting portion of the shell. The magnetic component can be linearly displaced relative to the shell along the axial direction of the transmission shaft through the rotational drive of the transmission shaft and the shape matching between the guide fitting portion of the shell and the guide fitting portion of the magnetic component.

2. The suspension according to claim 1, wherein the guide fitting portion of the shell includes a threaded segment, and the guide fitting portion of the magnetic component also includes a threaded segment, the threaded segment of the guide fitting portion of the shell and the threaded segment of the guide fitting portion of the magnetic component form a threaded fitting relationship and can rotate relative to each other around the transmission shaft, while the transmission shaft of the shell and the magnetic component are relatively non-rotatable. 3 . The suspension according to claim 2 , wherein one of the threaded section of the guide fitting portion of the housing and the threaded section of the guide fitting portion of the magnetic member has an internal thread, and the other has an external thread.

4. The suspension according to claim 1, wherein the guide fitting portion of the shell includes one of a linear guide rib and a linear guide groove, and the guide fitting portion of the magnetic member includes the other of the linear guide rib and the linear guide groove, wherein the guide rib is received in the guide groove in a shape-fitting manner; the transmission shaft is formed with an external threaded portion, and the magnetic member is formed with an internal threaded portion, and the two form a threaded fitting relationship and can rotate relative to each other.

5. The suspension according to claim 1, further comprising a motor fixedly mounted on the housing, for driving the transmission shaft to rotate.

6. The suspension according to claim 5, wherein the motor has a rotating output shaft dynamically connected to the transmission shaft, and the rotating output shaft of the motor is arranged coaxially with the transmission shaft or perpendicularly to each other.

7. The suspension according to claim 5 further includes an upper limit switch, a lower limit switch and a control circuit arranged on the shell, when the magnetic part is displaced to the highest position relative to the shell, the control circuit receives the signal generated by the upper limit switch and thereby controls the motor to stop running; when the magnetic part is displaced to the lowest position relative to the shell, the control circuit receives the signal generated by the lower limit switch and thereby controls the motor to stop running.

8. The suspension according to claim 7, wherein the motor is a bidirectional motor, and when the magnetic member is at the lowest position relative to the shell, the control circuit starts the motor to rotate in a direction opposite to the direction when the magnetic member is at the highest position relative to the shell.

9. The suspension of claim 1, wherein the drive shaft passes through at least a portion of the height of the magnetic member during rotation.

10. The suspension according to claim 1, wherein the suspension is designed as a globe, a Bluetooth speaker, a lamp, a flower pot, a camera, an aromatherapy, an ultrasonic atomizer or a humidifier.

11. A magnetic suspension device, comprising a levitator and a suspension body according to any one of claims 1 to 10, wherein the suspension body is levitable by the levitator.

12. The magnetic suspension device according to claim 11, wherein the levitator is in the form of a base, the suspension body can be stably suspended above the base, and the magnetic part of the suspension body includes a magnet assembly, and the magnet assembly is located at the lower end of the magnetic part.

13. The magnetic levitation device according to claim 12, wherein a positioning protrusion is provided on the upper surface of the base, and a positioning recess is provided on the lower surface of the shell of the suspension body, and when the shell is placed centrally on the base, the positioning protrusion of the base is temporarily received in the positioning recess of the shell in a shape-fitting manner.

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