CN215010081U - Magnetic suspension device - Google Patents
Magnetic suspension device Download PDFInfo
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- CN215010081U CN215010081U CN202121646411.XU CN202121646411U CN215010081U CN 215010081 U CN215010081 U CN 215010081U CN 202121646411 U CN202121646411 U CN 202121646411U CN 215010081 U CN215010081 U CN 215010081U
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- permanent magnet
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- magnet array
- magnetic suspension
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Abstract
The utility model discloses a magnetic suspension device, it includes magnetism suspension and base, the base is provided with the permanent magnet array, the electro-magnet, horizontal sensor group and control, wherein the permanent magnet array is central symmetry by a plurality of permanent magnets and arranges, the magnetism of its upper surface all is opposite with magnetism suspension lower surface magnetism in order to form first magnetic repulsion to magnetism suspension on the vertical line in permanent magnet array center, each permanent magnet that constitutes the permanent magnet array is for the cavity form second magnetic repulsion to magnetism suspension, the gravity of the balanced magnetism suspension of first magnetic repulsion and second magnetic repulsion makes magnetism suspension suspend in the balanced position of permanent magnet array top; under the action of the second magnetic repulsion force on the magnetic suspension piece, the magnetic suspension device can stably suspend the magnetic suspension piece with larger weight.
Description
Technical Field
The utility model relates to a magnetic suspension device.
Background
The magnetic suspension device makes the suspension body suspend in the preset position because of the magnetic force effect, thereby through the mysterious, deep and auspicious sense of visual impact, because of so magnetic suspension device is often by people as decoration, show thing. The existing magnetic suspension device mainly has two types, one type is an up-draft type, a coil is positioned above, a suspended matter is positioned below, and the balance between the coil and the suspended matter and the gravity is maintained by means of suction force, and the other type is a down-draft type, the coil is positioned below, the suspended matter is positioned above, and the balance between the coil and the gravity is maintained by means of repulsion force.
And the gravity that the magnetic repulsion can be balanced off of the push-down single magnetic repulsion under the base magnetic group with the same size is smaller, so that the suspension body with larger weight is difficult to suspend.
SUMMERY OF THE UTILITY MODEL
The main object of the utility model is to provide a magnetic suspension device, it is single to the magnetic repulsion of suspension body to aim at solving current magnetic suspension device, is difficult to suspend the technical problem of the suspension body of great weight.
In order to achieve the above object, the present invention provides a magnetic suspension device, which includes a magnetic suspension member and a base, wherein the base is provided with a permanent magnet array, an electromagnet, a horizontal sensor group and a control member, wherein the permanent magnet array is formed by a plurality of permanent magnets arranged in a central symmetry manner, and the magnetism of the upper surface of the permanent magnet array is opposite to that of the lower surface of the magnetic suspension member so as to form a first magnetic repulsion force on the central vertical line of the permanent magnet array for the magnetic suspension member;
each permanent magnet forming the permanent magnet array is hollow, the magnetism on the central vertical line of the permanent magnet is opposite to the upper surface of the permanent magnet and is the same as the magnetism on the lower surface of the magnetic suspension piece, and a second magnetic repulsion force is formed on the magnetic suspension piece;
the first magnetic repulsion force and the second magnetic repulsion force balance the gravity of the magnetic suspension piece so that the magnetic suspension piece is suspended at a balance position above the permanent magnet array;
the horizontal sensor group detects the offset information of the magnetic suspension piece in the horizontal direction, and the control piece acquires the offset information fed back by the horizontal sensor group and controls the size and/or direction of current introduced into the electromagnet to enable the magnetic suspension piece to return to the balance position.
Preferably, the magnetic suspensions in the vertical direction all cover the central vertical line of each permanent magnet.
Preferably, the bottom of the permanent magnet array is provided with a thin sheet made of a magnetic shielding material to shield part of magnetism of the permanent magnet array, wherein the magnetic shielding material is iron, manganese or PVC.
Preferably, the permanent magnet array is adsorbed and confined on the iron sheet, and a avoidance hole is formed in the position, corresponding to the hollow hole of the permanent magnet, of the iron sheet so as to increase the magnetism on the central vertical line of the permanent magnet.
Preferably, the permanent magnet array is circular or square, the permanent magnet is hollow circular or hollow strip, and the electromagnets are symmetrically arranged on the inner ring of the permanent magnet array relative to the central vertical line of the permanent magnet array.
Preferably, the horizontal sensor group is at least two hall sensors, and the hall sensors are arranged at the center of the permanent magnet array to detect the offset of the magnetic suspension piece in the X direction and the Y direction respectively.
Compared with the prior art, the utility model discloses real beneficial effect lies in:
the first magnetic repulsion force generated by the permanent magnet array to the magnetic suspension piece and the second magnetic repulsion force generated by each permanent magnet to the magnetic suspension piece respectively can stably suspend the magnetic suspension piece with larger weight under the condition that the two magnetic repulsion forces are additionally held by the horizontal sensor and the control piece.
And secondly, an iron sheet is arranged at the bottom of the permanent magnet array, the permanent magnet array is adsorbed and confined on the iron sheet to shield partial magnetism of the permanent magnet array, and whether the iron sheet corresponding to the hollow hole of the permanent magnet is cut off or not can be selected to control the magnetic flux of the permanent magnet to be shielded.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a magnetic suspension device of the present invention;
fig. 2 is a schematic view of a base structure of an embodiment of the magnetic levitation device of the present invention;
fig. 3 is a schematic view of a base structure of another embodiment of the magnetic levitation device of the present invention;
fig. 4 is a schematic structural view of another embodiment of the magnetic levitation device of the present invention;
fig. 5 is a schematic structural view of another embodiment of the magnetic levitation device of the present invention.
Detailed Description
Reference will now be made in detail to 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 or elements having the same or similar function 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.
The first embodiment is as follows:
referring to fig. 1 and 2, the magnetic suspension device includes a magnetic suspension member 1 and a base, the base is provided with a permanent magnet array 2, an electromagnet 4, a horizontal sensor group 5 and a control member 3, wherein the permanent magnet array 2 is formed by a plurality of permanent magnets 210 in a central symmetrical arrangement, in this embodiment, the number of the permanent magnets 210 is 12, the magnetic suspension member 1 has upper and lower surfaces, the magnetism of the lower surface is N, the magnetism of the upper surface of the permanent magnet array 2 is S, the magnetism is opposite to the magnetism of the lower surface of the magnetic suspension member 1, a magnetic field with the magnetism of N is formed at a certain position on a central vertical line of the permanent magnet array 2 by the principle of magnetic field lines, and an upward first magnetic repulsion force F1 is formed on the magnetic suspension member 1 to support the magnetic suspension member 1 to suspend; each permanent magnet 210 forming the permanent magnet array 2 is hollow, the magnetism of the upper surface of each permanent magnet 210 is S, similarly, the magnetism of a certain position on the central vertical line of each permanent magnet 210 is opposite to that of the upper surface of each permanent magnet 210, the magnetism of the certain position is N, the magnetism of the certain position is the same as that of the lower surface of the magnetic suspension piece 1, and the magnetic force with the magnetism of N on the central line of each permanent magnet 210 forms an upward second magnetic repulsion force F2 on the magnetic suspension piece 1 to support the magnetic suspension piece 1 to suspend; the first and second magnetic repulsive forces F1 and F2 balance the gravity of the magnetic suspension 1 to suspend the magnetic suspension 1 at a balanced position above the permanent magnet array 2.
The control part 3 is electrically connected to the electromagnet 4 and the horizontal sensor group 5 respectively, in a working state, the horizontal sensor group 5 detects offset information of the magnetic suspension part 1 in the horizontal direction and feeds the offset information back to the control part 3, and the control part 3 acquires the offset information fed back by the horizontal sensor group 5 and controls the size and/or direction of current passing through the electromagnet 4 so as to enable the magnetic suspension part 1 to return to a balance position.
In this embodiment, the control member 3 is a PCB provided with a controller, and is disposed at the bottom of the base, and a middle clearance iron sheet 6 is disposed above the PCB, wherein the clearance position is provided with four electromagnets 4 and a horizontal sensor group 5, and the electromagnets 4 are symmetrically disposed on the inner ring of the permanent magnet array 2 relative to the central vertical line of the permanent magnet array 2. Except that the electromagnets described in this embodiment are symmetrically arranged at the inner ring of the permanent magnet array, they can also be arranged at the outer ring of the permanent magnet array.
The horizontal sensor group 5 is at least two hall sensors, and is arranged at the center of the permanent magnet array 2 to detect the offset of the magnetic suspension component 1 in the X direction and the Y direction respectively. The horizontal direction is divided into four quadrants, when the Hall sensor detects that the magnetic suspension piece 1 deviates to a certain quadrant, a signal is transmitted to the control piece 3, if the magnetic suspension piece 1 deviates to the first quadrant, the control piece 3 controls the current of the electromagnets 4 positioned in the X positive direction and the Y positive direction to generate magnetism and act on the magnetic suspension piece 1 and correct the deviation amount of the magnetic suspension piece 1 to be in a preset balance position, or controls the current and the current direction introduced by the four electromagnets 4 simultaneously, and the deviation amount of the magnetic suspension piece 1 can be corrected more quickly and accurately. When the magnetic suspension element deviates to the second quadrant, the third quadrant or the fourth quadrant, the control element 3 also controls the magnitude and the direction of the current introduced into the electromagnet 4 so as to enable the magnetic suspension element 1 to return to the equilibrium position.
The iron sheet 6 is made of magnetic shielding materials, the permanent magnet array 2 is adsorbed and confined on the iron sheet 6, one of the permanent magnet array 2 can keep a relatively stable state in shape, the other permanent magnet array 2 can shield part of magnetism of the permanent magnet array, and the difficulty of stable control is reduced through magnetic shielding. In addition to the iron pieces, manganese flakes, PVC flakes may be provided to shield some of the magnetic properties of the magnet array.
The permanent magnet arrays 2 are arranged in a central symmetry manner to form a circular ring shape, the magnetic suspension piece 1 is in a round cake shape, and the radius of the magnetic suspension piece 1 is larger than the length from the center of the permanent magnet array 2 to the central vertical line of the permanent magnet 210. The magnetic suspension 1 covers the central vertical line of each permanent magnet 210 in the vertical direction, and the second magnetic repulsive force F2 can act on the magnetic suspension 1 more smoothly.
Example two:
referring to fig. 1 and 3, the permanent magnet array 2 in the first embodiment is transformed into a square shape symmetrical about the center position, a first magnetic repulsion force F1 upward to the magnetic suspension 1 is formed at a certain position on the vertical line of the center of the permanent magnet array 2, each permanent magnet 210 constituting the square permanent magnet array 2 is hollow, and a second magnetic repulsion force F2 upward to the magnetic suspension 1 is formed at a certain position on the vertical line of the center of the permanent magnet 210.
In addition to the circular and square permanent magnet arrays described in the first and second embodiments, the permanent magnet array may be in other shapes that are relatively closed and symmetrically arranged at the center of the permanent magnet array, and it is only necessary to ensure that each permanent magnet constituting the permanent magnet array has a vertical center hole.
Example three:
referring to fig. 4, on the basis of the first embodiment, the iron sheet 6 is provided with a relief hole corresponding to the hollow hole of the permanent magnet to increase the magnetism on the central vertical line of the permanent magnet. Namely, the second magnetic repulsion to the magnetic suspension element 1 is increased, and the suspension supporting capability of the base is increased.
Example four:
referring to fig. 5, compared with the first embodiment, the magnetic suspension apparatus also includes a magnetic suspension 1 and a base, the base is provided with a permanent magnet array 2, an electromagnet 4, a horizontal sensor group 5 and a control member 3, wherein the permanent magnet array 2 is formed by four permanent magnets 210 arranged in central symmetry, the magnetic suspension 1 has upper and lower surfaces, the magnetism of the lower surface is N, the magnetism of the upper surface of the permanent magnet array 2 is S, the magnetism is opposite to that of the lower surface of the magnetic suspension 1, a magnetic field with the magnetism of N is formed at a certain position on a central vertical line of the permanent magnet array 2, and an upward first magnetic repulsion force F1 is formed on the magnetic suspension 1 to support the magnetic suspension 1 to suspend; each permanent magnet 210 forming the permanent magnet array 2 is hollow, the magnetism of the upper surface of each permanent magnet 210 is S, similarly, the magnetism of a certain position on the central vertical line of each permanent magnet 210 is opposite to that of the upper surface of each permanent magnet 210, the magnetism of the certain position is N, the magnetism of the certain position is the same as that of the lower surface of the magnetic suspension piece 1, and the magnetic force with the magnetism of N on the central line of each permanent magnet 210 forms an upward second magnetic repulsion force F2 on the magnetic suspension piece 1 to support the magnetic suspension piece 1 to suspend; the first and second magnetic repulsive forces F1 and F2 balance the gravity of the magnetic suspension 1 to suspend the magnetic suspension 1 at a balanced position above the permanent magnet array 2. The horizontal sensor group 5 and the control member 3 control the deviation of the magnetic levitation member in the horizontal direction and correct the deviation.
The permanent magnets 210 arranged in the four electromagnets 4 are shaped like a bar having a hollow structure.
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 (6)
1. A magnetic suspension device is characterized by comprising a magnetic suspension piece and a base, wherein the base is provided with a permanent magnet array, an electromagnet, a horizontal sensor group and a control piece, the permanent magnet array is formed by a plurality of permanent magnets which are arranged in a central symmetry manner, the magnetism of the upper surface of the permanent magnet array is opposite to that of the lower surface of the magnetic suspension piece, so that a first magnetic repulsion force is formed on the central vertical line of the permanent magnet array for the magnetic suspension piece;
each permanent magnet forming the permanent magnet array is hollow, the magnetism on the central vertical line of the permanent magnet is opposite to the upper surface of the permanent magnet and is the same as the magnetism on the lower surface of the magnetic suspension piece, and a second magnetic repulsion force is formed on the magnetic suspension piece;
the first magnetic repulsion force and the second magnetic repulsion force balance the gravity of the magnetic suspension piece so that the magnetic suspension piece is suspended at a balance position above the permanent magnet array;
the horizontal sensor group detects the offset information of the magnetic suspension piece in the horizontal direction, and the control piece acquires the offset information fed back by the horizontal sensor group and controls the size and/or direction of current introduced into the electromagnet to enable the magnetic suspension piece to return to the balance position.
2. Magnetic levitation apparatus according to claim 1, wherein the magnetic suspensions in the vertical direction each cover a vertical line of the centre of each permanent magnet.
3. Magnetic levitation apparatus as claimed in claim 1 or 2, wherein the bottom of the permanent magnet array is provided with a thin sheet of magnetic shielding material to shield part of the magnetism of the permanent magnet array, wherein the magnetic shielding material is iron, manganese or PVC.
4. The magnetic suspension device according to claim 3, wherein the permanent magnet array is fixed on the iron sheet by adsorption, and the iron sheet is provided with a avoiding hole corresponding to the hollow hole of the permanent magnet to increase the magnetism on the central vertical line of the permanent magnet.
5. The magnetic levitation device as recited in claim 1, wherein the permanent magnet array is circular or square, the permanent magnet is hollow circular or hollow strip, and the electromagnets are symmetrically arranged at the inner ring of the permanent magnet array relative to the central vertical line of the permanent magnet array.
6. The magnetic levitation apparatus as recited in claim 1, wherein the horizontal sensor group is at least two hall sensors disposed at a central position of the permanent magnet array to detect the offset of the magnetic levitation member in the X-direction and the Y-direction, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121646411.XU CN215010081U (en) | 2021-07-20 | 2021-07-20 | Magnetic suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121646411.XU CN215010081U (en) | 2021-07-20 | 2021-07-20 | Magnetic suspension device |
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| Publication Number | Publication Date |
|---|---|
| CN215010081U true CN215010081U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121646411.XU Active CN215010081U (en) | 2021-07-20 | 2021-07-20 | Magnetic suspension device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115191787A (en) * | 2022-07-14 | 2022-10-18 | 慕思健康睡眠股份有限公司 | Magnetic suspension cushion and bed |
| CN115326185A (en) * | 2022-08-19 | 2022-11-11 | 苏州德斯米尔智能科技有限公司 | High-precision quality measurement system |
-
2021
- 2021-07-20 CN CN202121646411.XU patent/CN215010081U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115191787A (en) * | 2022-07-14 | 2022-10-18 | 慕思健康睡眠股份有限公司 | Magnetic suspension cushion and bed |
| CN115191787B (en) * | 2022-07-14 | 2023-07-11 | 慕思健康睡眠股份有限公司 | Magnetic suspension pad and bed |
| CN115326185A (en) * | 2022-08-19 | 2022-11-11 | 苏州德斯米尔智能科技有限公司 | High-precision quality measurement system |
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