Rotary magnetic suspension device

Abstract

The utility model relates to the field of suspension devices, in particular to a rotary magnetic suspension device, which comprises a showing stand, an electromagnet, a master control circuit board and a suspension body, a first permanent magnet is arranged in the suspension body, an electric control cavity is arranged in the showing stand, the electromagnet and the master control circuit board are both arranged in the electric control cavity, and the suspension body is arranged below the electromagnet and is aligned with the electromagnet. A plurality of electromagnetic coils are further arranged in the electric control cavity, the electromagnet is cylindrical and evenly distributed around the axis of the electromagnet, the polarity of the face, opposite to the first permanent magnet block, of the electromagnet is opposite, the polarity of the face, opposite to the first permanent magnet block, of the electromagnetic coils is opposite, and the electromagnetic coils and the electromagnet are both electrically connected with the main control circuit board. The edge of the first permanent magnet block is attracted by the electromagnetic coils in sequence, so that the suspension body rotates around the axis at a constant speed, rotation of the suspension body is more stable, and the rotation speed of the suspension body can be changed by adjusting the sequential energizing time and current of the electromagnetic coils.

Description

Technical Field

[0001] The utility model relates to the field of suspension devices, in particular to a rotary magnetic suspension device. Background Art

[0002] Magnetic levitation is a technology that uses magnetic fields to suspend objects in the air. It is also called magnetic levitation technology. Magnetic levitation technology is mostly used in transportation, industrial production, medical treatment, scientific research, etc. For example, the maglev train is the most famous application of magnetic levitation technology, which can achieve high-speed travel and reduce friction. Magnetic levitation technology can be used for material handling and processing that requires frictionless motion. With the maturity of magnetic levitation technology, more and more magnetic levitation devices have appeared in the civilian market, such as magnetic levitation teaching supplies, crafts, souvenirs, models, toys, ornaments, trendy toys and other products.

[0003] Principle of magnetic levitation: There are two types of levitation in magnetic levitation devices, one is downward levitation and the other is upward levitation. In downward levitation, when the circuit is powered on, the electromagnet generates a magnetic field, which generates a repulsive force with the permanent magnet. The magnetic levitation control system changes the magnetic field by adjusting the current, thereby changing the repulsive force with the permanent magnet. When the repulsive force is balanced with the gravity of the suspended object, the suspended object can be suspended in the air in a stable state.

[0004] An existing magnetic suspension ornament includes a base, a frame, and a suspension body suspended by magnetic field force in the middle of the frame. The frame is provided with a driving rotation device corresponding to the bottom of the suspension body. An LED light bar is provided in the frame. At least one surface on the line from the top to the bottom of the frame is a light-transmitting material. The LED light bar is provided with a touch sensor and a sound control sensor. A PCB board electrically connected to the LED light bar is provided in the base. The base is also provided with a clock device, a temperature measuring device and a display screen electrically connected to the PCB board. The display screen is provided on the side or top surface of the base. The electromagnet is driven to rotate by the driving rotation device, so that the suspension body is rotated. The rotation effect is poor, the rotation is not stable, and the rotation speed cannot be controlled. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technical solutions, the utility model provides a rotating magnetic suspension device, which can effectively solve the technical problem that the device can only be displayed in a static state.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The invention discloses a rotary magnetic suspension device, comprising a display frame, an electromagnet, a main control circuit board and a suspension body, wherein a first permanent magnet block is arranged in the suspension body, an electric control cavity is arranged in the display frame, the electromagnet and the main control circuit board are both arranged in the electric control cavity, the suspension body is aligned with the electromagnet, a suspension display area is arranged in the middle of the display frame, the suspension body is arranged in the suspension display area, a plurality of independently controlled electromagnetic coils are also arranged in the electric control cavity, the electromagnetic coils and the electromagnet are both electrically connected to the main control circuit board, the electromagnet is cylindrical, a plurality of electromagnetic coils are evenly distributed around the axis of the electromagnet, when the electromagnet is energized, the electromagnet generates a magnetic field, and the polarity of the side opposite to the first permanent magnet block is opposite, so that the suspension body is suspended in the suspension display area, and when one of the plurality of electromagnetic coils is energized in turn, the electromagnetic coil in the energized state generates a magnetic field, and the polarity of the side opposite to the first permanent magnet block is opposite.

[0008] Furthermore, the display rack is in a "C" shape, and a placement table for placing the suspended body is arranged on the surface of the display rack, the suspended display area is located above the placement table, and the electromagnet and the electromagnetic coil are both arranged in the electric control cavity above the suspended display area.

[0009] Furthermore, a containing cavity is arranged in the suspension body, and the first permanent magnet block is arranged at one end of the containing cavity close to the electromagnet, and the first permanent magnet block is rectangular and horizontally arranged in the containing cavity.

[0010] Furthermore, the first permanent magnet block is in a disc shape, and a second permanent magnet block is arranged around the first permanent magnet block, and the polarity of the second permanent magnet block on a side opposite to the electromagnetic coil is opposite.

[0011] Furthermore, the electromagnetic coil is arranged on the side wall of the electromagnet, and the main control circuit board is arranged at the bottom end of the electric control cavity.

[0012] Furthermore, the main control circuit board is arranged at one end of the electromagnet away from the suspension, and the electromagnetic coil is arranged at one end of the main control circuit board away from the electromagnet.

[0013] Furthermore, the main control circuit board is also electrically connected to a power interface, and the power interface extends to the surface of the display stand.

[0014] Compared with the prior art, the utility model has the following beneficial effects: a plurality of electromagnetic coils are provided, and the plurality of electromagnetic coils are evenly distributed around the axis of the electromagnet. After the electromagnet is energized, the electromagnet and the first permanent magnet block attract each other. When the attraction of the electromagnet to the first permanent magnet block is equal to the gravity of the first permanent magnet block and the suspension, the suspension is suspended on the display stand. At this time, one of the electromagnetic coils is energized in turn. After the electromagnetic coil is energized, an attraction is generated to the edge of the first permanent magnet block. At this time, the magnetic force of the electromagnetic coil and the electromagnet is equal to the gravity of the first permanent magnet block and the suspension. The edge of the first permanent magnet block is attracted by one of the electromagnetic coils in turn, so that the suspension rotates at a uniform speed around the axis, and the rotation of the suspension is more stable. The rotation speed of the suspension can be changed by adjusting the time and current of the plurality of electromagnetic coils being energized in turn. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0016] Figure 2 It is a cross-sectional view of the first embodiment of the present utility model;

[0017] Figure 3 It is a three-dimensional cross-sectional view of the first embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the force applied to the electromagnet after power is supplied to the electromagnet in the first embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the forces acting on the electromagnet and the electromagnetic coil after being energized in the first embodiment of the utility model;

[0020] Figure 6 This is a schematic diagram of the force of the suspension in the first embodiment of the utility model;

[0021] Figure 7 It is a cross-sectional view of the second embodiment of the present utility model;

[0022] Figure 8 It is a three-dimensional cross-sectional view of the second embodiment of the present utility model;

[0023] Fig. 9 This is a circuit diagram of the second embodiment of the present utility model;

[0024] Numbers in the figure: 1-display stand, 2-electromagnet, 3-main control circuit board, 4-suspension body, 5-first permanent magnet block, 6-electric control cavity, 7-electromagnetic coil, 8-suspension display area, 9-placing table, 10-second permanent magnet block, 11-power interface. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model is described in detail below:

[0027] Embodiment 1

[0028] like Figure 1-Figure 6 As shown, the rotary magnetic suspension device includes a display frame 1, an electromagnet 2, a main control circuit board 3 and a suspension body 4, a first permanent magnet block 5 is arranged in the suspension body 4, an electric control cavity 6 is arranged in the display frame 1, the electromagnet 2 and the main control circuit board 3 are both arranged in the electric control cavity 6, the suspension body 4 is arranged below the electromagnet 2 and aligned with the electromagnet 2, a plurality of electromagnetic coils 7 are also arranged in the electric control cavity 6, the electromagnet 2 is cylindrical, and the plurality of electromagnetic coils 7 are evenly distributed around the axis of the electromagnet 2, the polarity of the opposite side of the electromagnet 2 and the first permanent magnet block 5 is opposite, which is an "S" pole and an "N" pole respectively, the polarity of the opposite side of the electromagnetic coil 7 and the first permanent magnet block 5 is opposite, which is an "S" pole and an "N" pole respectively, the electromagnetic coil 7 and the electromagnet 2 are both electrically connected to the main control circuit board 3, the display frame 1 is in a "C" shape, and a suspension display area 8 is arranged in the middle of the display frame 1 The suspension 4 is arranged in the suspension display area 8, and a placement table 9 for placing the suspension 4 is arranged on the surface of the display frame 1. The suspension display area 8 is located above the placement table 9. The electromagnet 2 and the electromagnetic coil 7 are both arranged in the electric control cavity 6 above the suspension display area 8. The first permanent magnet block 5 is disc-shaped, and the first permanent magnet block 5 is horizontally arranged in the suspension 4. A second permanent magnet block 10 is arranged around the first permanent magnet block 5. The second permanent magnet block 10 and the first permanent magnet block 5 are located in the same horizontal plane. The polarity of the second permanent magnet block 10 on the opposite side to the electromagnetic coil 7 is opposite, which are "N" pole and "S" pole respectively. The main control circuit board 3 is arranged at one end of the electromagnet 2 away from the suspension 4, and the electromagnetic coil 7 is arranged at one end of the main control circuit board 3 away from the electromagnet 2. The main control circuit board 3 is also electrically connected to a power interface 11, and the power interface 11 extends to the surface of the display frame 1.

[0029] The rotary magnetic suspension device of this embodiment is provided with a plurality of electromagnetic coils 7, which are evenly distributed around the axis of the electromagnet 2. The electromagnet 2 generates a magnetic field after being energized. The suspension 4 is placed in the suspension display area 8 and maintains a preset distance from the electromagnet 2. The electromagnet 2 generates an attractive force on the first permanent magnet block 5 and the second permanent magnet block 10. Figure 4As shown, F1=G, F1 is the attraction of the electromagnet 2 to the first permanent magnet block 5 and the second permanent magnet block 10, G is the total gravity of the suspension 4, the first permanent magnet block 5 and the second permanent magnet block 10, the gravity of the suspension 4, the first permanent magnet block 5 and the second permanent magnet block 10 is equal to the attraction of the electromagnet 2 to the first permanent magnet block 5, at this time the suspension 4 is suspended in the suspension display area 8, when one of the electromagnetic coils 7 is energized in turn under the control of the main control circuit board 3, the electromagnetic coil 7 closest to the second permanent magnet block 10 generates an attraction to the second permanent magnet block 10 after being energized, and the magnetic force of the electromagnet 2 is weakened at this time, as shown in FIG. Figure 5 As shown, F1+F2=G, F1 is the attraction of the electromagnet 2 to the first permanent magnet block 5, F2 is the attraction of the electromagnetic coil 7 to the second permanent magnet block 10, G is the total gravity of the suspension 4, the first permanent magnet block 5 and the second permanent magnet block 10, the attraction of the electromagnet 2 to the first permanent magnet block 5 plus the attraction of the electromagnetic coil 7 to the second permanent magnet block 10 is equal to the total gravity of the suspension 4, the first permanent magnet block 5 and the second permanent magnet block 10, the second permanent magnet block 10 approaches the electromagnetic coil 7 under the action of the attraction F2, so that the suspension 4 generates a horizontal rotation force F3, as shown in FIG. Figure 6 As shown, the electromagnetic coils 7 are energized in sequence, so that the second permanent magnet 10 is continuously attracted by the electromagnetic coils 7 in sequence, so that the suspension 4 can rotate uniformly around the axis. The rotation speed of the suspension 4 can be controlled by adjusting the time and current of the electromagnetic coils 7 being energized in sequence.

[0030] Embodiment 2

[0031] like Figure 7-Figure 9 As shown, the difference between the second embodiment and the first embodiment is that the electromagnetic coil 7 is arranged on the side wall of the electromagnet 2, the main control circuit board 3 is arranged at the bottom end of the electric control cavity 6, the first permanent magnet block 5 is arranged at one end of the accommodating cavity close to the electromagnet 2, the first permanent magnet block 5 is rectangular and horizontally arranged in the accommodating cavity, and the electromagnet 2 generates an attractive force on the first permanent magnet block 5 after being energized. When the total gravity of the suspension 4 and the first permanent magnet block 5 is equal to the attractive force between the electromagnet 2 and the first permanent magnet block 5, the suspension 4 is suspended on the suspension display area 8. When a plurality of electromagnetic coils 7 are controlled by the main control circuit board 3, When the electromagnetic coil 7 is energized in sequence, it generates attraction to the corner of the rectangular first permanent magnet block 5. At this time, the attraction of the electromagnetic coil 7 and the electromagnet 2 to the first permanent magnet block 5 is equal to the total gravity of the suspension 4 and the first permanent magnet block 5. Under the action of the electromagnetic coil 7, the first permanent magnet block 5 rotates horizontally, so that the corner of the first permanent magnet block 5 is close to the electromagnetic coil 7 after the power is turned on. Several electromagnetic coils 7 are energized in sequence, and the corners of the first permanent magnet block 5 are continuously attracted by the electromagnetic coils 7 in sequence, so that the first permanent magnet block 5 drives the suspension 4 to rotate at a uniform speed. The circuit control is as follows: Fig. 9 shown.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A rotary magnetic suspension device, comprising a display stand, an electromagnet, a main control circuit board and a suspension body, wherein a first permanent magnet block is arranged in the suspension body, an electric control cavity is arranged in the display stand, the electromagnet and the main control circuit board are arranged in the electric control cavity, the suspension body is aligned with the electromagnet, a suspension display area is arranged in the middle of the display stand, and the suspension body is arranged in the suspension display area, characterized in that: A plurality of independently controlled electromagnetic coils are also arranged in the electric control cavity. The electromagnetic coils and the electromagnet are electrically connected to the main control circuit board. The electromagnet is cylindrical. The plurality of electromagnetic coils are evenly distributed around the axis of the electromagnet. When the electromagnet is energized, the electromagnet generates a magnetic field, and the polarity of the electromagnet is opposite to that of the first permanent magnet block, so that the suspended body is suspended in the suspended display area. When one of the plurality of electromagnetic coils is energized in turn, the electromagnetic coil in the energized state generates a magnetic field, and the polarity of the electromagnetic coil is opposite to that of the first permanent magnet block.

2. The rotary magnetic suspension device according to claim 1, characterized in that: The display rack is in a "C" shape, and a placement table for placing the suspension is arranged on the surface of the display rack. The suspension display area is located above the placement table, and the electromagnet and the electromagnetic coil are both arranged in the electric control cavity above the suspension display area.

3. The rotary magnetic suspension device according to claim 1, characterized in that: The suspension body is provided with a receiving cavity, and the first permanent magnet block is arranged at one end of the receiving cavity close to the electromagnet. The first permanent magnet block is rectangular and horizontally arranged in the receiving cavity.

4. The rotary magnetic suspension device according to claim 1, characterized in that: The first permanent magnet block is in a disc shape. A second permanent magnet block is arranged around the first permanent magnet block. The polarity of the second permanent magnet block on a side opposite to the electromagnetic coil is opposite.

5. The rotary magnetic suspension device according to any one of claims 1 to 4, characterized in that: The electromagnetic coil is arranged on the side wall of the electromagnet, and the main control circuit board is arranged on the bottom end of the electric control cavity.

6. The rotary magnetic suspension device according to any one of claims 1 to 4, characterized in that: The main control circuit board is arranged at one end of the electromagnet away from the suspension body, and the electromagnetic coil is arranged at one end of the main control circuit board away from the electromagnet.

7. The rotary magnetic suspension device according to any one of claims 1 to 4, characterized in that: The main control circuit board is also electrically connected to a power interface, and the power interface extends to the surface of the display frame.

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