CN114553055A - Magnetic suspension device - Google Patents
Magnetic suspension device Download PDFInfo
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- CN114553055A CN114553055A CN202210148826.7A CN202210148826A CN114553055A CN 114553055 A CN114553055 A CN 114553055A CN 202210148826 A CN202210148826 A CN 202210148826A CN 114553055 A CN114553055 A CN 114553055A
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- magnetic
- magnet
- magnetic polarity
- suspension
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a magnetic suspension device, which comprises a base module, a suspension module and a control module, wherein the base module is provided with a magnetic suspension module; the base module comprises a radially magnetized first magnet; the suspension module comprises a radially magnetized second magnet; the inner side of the first magnet is represented by a first magnetic polarity, the outer side is represented by a second magnetic polarity, and the first magnetic polarity and the second magnetic polarity are opposite; the inner side of the second magnet exhibits a third magnetic polarity and the outer side exhibits a fourth magnetic polarity, the third magnetic polarity and the fourth magnetic polarity being opposite; the suspension module can be suspended above the base module; the control module is used for keeping the suspension module stably suspended. Has the advantages of strong suspension force, good suspension stability and the like.
Description
Technical Field
The invention relates to the technical field of magnetic suspension, in particular to a magnetic suspension device.
Background
The existing magnetic suspension device or the principle of like poles repelling each other is utilized, so that the polarities of the upper surface of the base and the lower surface of the suspension module are the same, and the magnetic repulsion force is generated to balance the weight of the suspension module and enable the suspension module to suspend; however, the suspension performance of the method is limited, the suspension module is required to be uniform in volume distribution and weight distribution, and only specific objects with regularity, such as coins and cup covers, can be carried; once a small amount of deviation exists, the situation that the magnetic induction line passes through the suspension module can be changed rapidly, so that the balance is lost, and the suspension stability is poor; and because the suspension module is located at the position on the base where the magnetic field lines are the densest, if the position of the suspension module changes, the magnetic flux passing through the suspension module also changes rapidly, so that a more obvious eddy current phenomenon is generated to generate heat, and the effective utilization of energy is lost.
Or the magnetism near the annular surface area of the annular magnet is opposite to the magnetism in a certain preset area outside the annular surface of the annular magnet, if the polarity of the upper surface of the horizontally arranged annular magnet is S, the polarity of the certain preset area above the annular magnet is N, and the strength of the polarity N of the area changes along with the change of officer service or horizontal position, so that an object can be suspended in a mode of jacking (repelling) by using the central magnetic force of the annular magnet and can be rotated in the horizontal direction without additionally arranging a placing mechanism, for example, the invention patent with the patent number ZL 200610065336.1. However, in this way, the opposite polarities repel each other, that is, the specific region with opposite polarities above the base and the repulsion force generated by the suspension module are used for realizing suspension, and the magnetic repulsion force which can be provided is still limited; in addition, the density of the magnetic field lines at the position of the levitation module is still dense, and when the levitation module generates a certain horizontal deviation or inclination, the generated eddy current loss is still large.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the technical problems in the prior art, the invention provides a magnetic suspension device with strong suspension force and good suspension stability.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a magnetic suspension device comprises a base module, a suspension module and a control module;
the base module comprises a radially magnetized first magnet;
the suspension module comprises a radially magnetized second magnet;
the inner side of the first magnet is represented by a first magnetic polarity, the outer side is represented by a second magnetic polarity, and the first magnetic polarity and the second magnetic polarity are opposite;
the inner side of the second magnet exhibits a third magnetic polarity and the outer side exhibits a fourth magnetic polarity, the third magnetic polarity and the fourth magnetic polarity being opposite;
the suspension module can be suspended above the base module; the control module is used for keeping the suspension module stably suspended.
Further, the first magnetic polarity is the same as the third magnetic polarity, and the second magnetic polarity is the same as the fourth magnetic polarity.
Further, the first magnetic polarity is opposite the third magnetic polarity and the second magnetic polarity is opposite the fourth magnetic polarity.
Further, the base module includes a first magnetic shield panel and a bottom plate, the first magnetic shield panel being located above the bottom plate, the first magnetic shield panel and the bottom plate forming an apparatus installation space therebetween; the first magnet is disposed above the first magnetic shield panel; the control module comprises a floater deviation measuring sensor, an electromagnet and a control circuit, the floater deviation measuring sensor and the electromagnet are arranged above the first magnetic shielding plate, and the control circuit is arranged between the first magnetic shielding plate and the bottom plate.
Further, the levitation module includes a second magnetic shield panel positioned over the second magnet.
Further, the float bias measuring sensor is a hall sensor.
Further, the first magnet is a single ring magnet, or at least three independent magnets are arranged in a ring shape.
Further, the second magnet is a single ring magnet, or at least three independent magnets are arranged in a ring shape.
Further, the weight of the suspension module is greater than 1 gram.
Compared with the prior art, the invention has the advantages that:
1. the base module and the suspension module are both radial magnetized magnets, and the suspension of the suspension module is realized by utilizing the magnetic repulsion force generated by the magnetic field between the base module and the suspension module; because the magnet that radially magnetizes can form the magnetic field that intensity is stronger in its upper surface or lower surface region, can produce stronger magnetic repulsion to the suspension module to make magnetic suspension device have bigger suspension power, the suspension height is higher, and the load-carrying capacity is bigger.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a front view, a schematic structural diagram and a cross-sectional diagram of a first embodiment of the invention.
Fig. 3 is a cross-sectional view of fig. 2 according to a first embodiment of the present invention.
Fig. 4 is a schematic diagram of the magnetic polarities of the magnets according to the first embodiment of the present invention.
Fig. 5 is a first diagram illustrating a magnetic field distribution of a base module according to an embodiment of the invention.
Fig. 6 is a schematic diagram of magnetic field distribution in a levitated state according to a second embodiment of the present invention.
Fig. 7 is a schematic view of magnetic lines of force according to a first embodiment of the present invention.
Fig. 8 is a schematic view of the magnetic polarities of the magnets according to the second embodiment of the present invention.
FIG. 9 is a diagram illustrating magnetic field distribution in a second levitated state according to an embodiment of the present invention.
Fig. 10 is a schematic view of magnetic lines of force according to a second embodiment of the present invention.
Description of the drawings: 1. a first magnet; 2. a second magnet; 3. an electromagnet; 4. a control circuit; 5. a first magnetic shield panel; 6. a base plate; 7. a second magnetic shield panel.
Detailed Description
The invention is further described below with reference to the drawings and specific preferred embodiments of the description, without thereby limiting the scope of protection of the invention.
The first embodiment is as follows:
the magnetic levitation device of the present embodiment, as shown in fig. 1, fig. 2 and fig. 3, includes a base module, a levitation module and a control module; the base module comprises a first magnet 1 which is magnetized radially; the suspension module comprises a radially magnetized second magnet 2; the inner side of the first magnet 1 shows a first magnetic polarity, and the outer side shows a second magnetic polarity, wherein the first magnetic polarity and the second magnetic polarity are opposite; the inner side of the second magnet 2 shows a third magnetic polarity, and the outer side shows a fourth magnetic polarity, wherein the third magnetic polarity and the fourth magnetic polarity are opposite; the suspension module can be suspended above the base module; the control module is used for keeping the suspension module stably suspended.
In this embodiment, the first magnetic polarity is opposite to the third magnetic polarity, and the second magnetic polarity is opposite to the fourth magnetic polarity. As shown in fig. 4, the magnetic polarity of the inner side of the first magnet 1 is the S pole, and the magnetic polarity of the outer side is the N pole; the magnetic polarity on the inner side of the second magnet 2 is an N pole, and the magnetic polarity on the outer side is an S pole. Of course, the magnetic polarity on the inner side of the first magnet 1 may be an N pole, and the magnetic polarity on the outer side may be an S pole; the magnetic polarity on the inner side of the second magnet 2 is an S pole, and the magnetic polarity on the outer side is an N pole.
In the present embodiment, for the magnetic polarity setting manner shown in fig. 4, the magnetic field distribution of the base module determined by simulation calculation is shown in fig. 5, the magnetic field distribution when the levitation module is levitated above the base module is shown in fig. 6, and the magnetic force line distribution is shown in fig. 7. As can be seen from fig. 5, 6 and 7, a strong magnetic field can be generated in the vicinity of the upper surface or the lower surface of the first magnet 1 of the base module. As can be confirmed from fig. 6 and 7, the magnetic field distribution curve is dense between the first magnet 1 of the base module and the second magnet 2 of the suspension module, and the magnetic lines of force are dense, so that a strong magnetic repulsion force can be generated between the first magnet 1 and the second magnet 2, and the magnetic suspension device has a larger suspension force, a higher suspension height and a larger load carrying capacity. Moreover, through experimental contrastive analysis, the technical scheme of this embodiment is higher for the suspension scheme that base module and suspension module all adopt the magnet of axial magnetization to realize, its suspension stability, and its stable suspended region is bigger moreover.
In the present embodiment, the base module includes a first magnetic shield panel 5 and a bottom plate 6, the first magnetic shield panel 5 is located above the bottom plate 6, and an apparatus installation space is formed between the first magnetic shield panel 5 and the bottom plate 6; the first magnet 1 is disposed above the first magnetic shield panel 5; the control module comprises a floater deviation measuring sensor, an electromagnet 3 and a control circuit 4, the floater deviation measuring sensor and the electromagnet 3 are arranged above the first magnetic shielding plate 5, and the control circuit 4 is arranged between the first magnetic shielding plate 5 and the bottom plate 6. In the present embodiment, the levitation module includes a second magnetic shield plate 7, and the second magnetic shield plate 7 is located above the second magnet 2. The first magnet 1 and the control circuit 4 of the control module are separated by the first magnetic shielding plate 5, so that an area with smaller magnetic field intensity can be formed below the first magnetic shielding plate 5, the interference of the magnetic field of the first magnet 1 or the second magnet 2 to the control circuit 4 can be effectively prevented, and the operation stability of the control circuit 4 is improved. The float deflection sensor is not shown in the figure. By arranging the second magnetic shielding plate 7, a region with smaller magnetic field intensity can be formed above the second magnet 2, so that when the suspension module needs to carry other electronic equipment, a good operating environment can be provided for the electronic equipment, and the interference of the magnetic field to the electronic equipment is reduced.
In this embodiment, the float bias sensor is preferably a hall sensor. The float deflection measuring sensor is used for detecting the suspension position of the suspension module, providing the position to the control circuit 4, and controlling the electromagnet 3 to generate a corresponding magnetic field by the control circuit 4 so that the suspension module is stably suspended above the base. Of course, other sensors capable of measuring the levitation position of the levitation module may also be used as the float deflection sensor.
In the present embodiment, the first magnet 1 is a single ring magnet, or at least three independent magnets are arranged in a ring shape. The second magnet 2 is a single ring magnet, or at least three independent magnets are arranged in a ring shape. A single ring magnet refers to a piece of magnet in the shape of a ring. However, since the production cost of a single ring magnet is relatively high and the production difficulty is relatively high, in this embodiment, the ring magnet is preferably formed by arranging three or more independent magnets in a ring shape, so that the cost can be reduced on one hand, and on the other hand, the shape and size of the arranged ring shape are not limited by the physical shape of the magnets, and the flexibility is better. The ring shape in this embodiment includes not only a regular circular ring shape but also other shapes such as an oval shape, a rectangular shape, and a regular polygon shape. Of course, when the magnets are regularly arranged, the algorithm for controlling the stable levitation by the control circuit 4 is relatively simpler and easier to implement.
In this embodiment, it is further preferred that the weight of the suspension module is greater than 1 gram.
Example two:
the second embodiment is substantially the same as the first embodiment, except that the magnetic polarities of the first magnet 1 and the second magnet 2 are different, and therefore, the same contents as those of the first embodiment in this embodiment are not repeated in this embodiment.
In this embodiment, the first magnetic polarity is the same as the third magnetic polarity, and the second magnetic polarity is the same as the fourth magnetic polarity. As shown in fig. 8, fig. 8 is a schematic view of magnetic polarity based on the AA cross-section of the structure shown in fig. 2. The magnetic polarity of the inner side of the first magnet 1 is S pole, and the magnetic polarity of the outer side is N pole; the magnetic polarity on the inner side of the second magnet 2 is an S pole, and the magnetic polarity on the outer side is an N pole. Of course, the magnetic polarity on the inner side of the first magnet 1 may be an N pole, and the magnetic polarity on the outer side may be an S pole; the magnetic polarity on the inner side of the second magnet 2 is an N pole, and the magnetic polarity on the outer side is an S pole.
In the present embodiment, for the magnetic polarity arrangement shown in fig. 8, through simulation calculation, when the suspension module is suspended above the base module, the magnetic field distribution is shown in fig. 9, and the magnetic force line distribution is shown in fig. 10. As can be seen from fig. 9 and 10, the magnetic field distribution curve between the first magnet 1 and the second magnet 2 is dense, and the magnetic lines of force are also dense, so that a strong magnetic repulsion force can be generated between the first magnet 1 and the second magnet 2, and the magnetic suspension device has a larger suspension force, a higher suspension height and a larger load carrying capacity. Moreover, through experimental contrastive analysis, the technical scheme of this embodiment is higher for the suspension scheme that base module and suspension module all adopt the magnet of axial magnetization to realize, its suspension stability, and its stable suspended region is bigger moreover.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (8)
1. A magnetic suspension device is characterized in that: the device comprises a base module, a suspension module and a control module;
the base module comprises a radially magnetized first magnet;
the suspension module comprises a radially magnetized second magnet;
the inner side of the first magnet is represented by a first magnetic polarity, the outer side is represented by a second magnetic polarity, and the first magnetic polarity and the second magnetic polarity are opposite;
the inner side of the second magnet exhibits a third magnetic polarity and the outer side exhibits a fourth magnetic polarity, the third magnetic polarity and the fourth magnetic polarity being opposite;
the suspension module can be suspended above the base module; the control module is used for keeping the suspension module stably suspended.
2. Magnetic levitation apparatus according to claim 1, characterised in that: the first magnetic polarity is the same as the third magnetic polarity, and the second magnetic polarity is the same as the fourth magnetic polarity.
3. Magnetic levitation apparatus according to claim 1, characterised in that: the first magnetic polarity is opposite the third magnetic polarity and the second magnetic polarity is opposite the fourth magnetic polarity.
4. Magnetic levitation apparatus according to claim 1, characterised in that: the base module comprises a first magnetic shielding plate and a bottom plate, the first magnetic shielding plate is positioned above the bottom plate, and an equipment installation space is formed between the first magnetic shielding plate and the bottom plate; the first magnet is disposed above the first magnetic shield panel; the control module comprises a floater deviation measuring sensor, an electromagnet and a control circuit, the floater deviation measuring sensor and the electromagnet are arranged above the first magnetic shielding plate, and the control circuit is arranged between the first magnetic shielding plate and the bottom plate.
5. Magnetic levitation apparatus according to claim 1, characterised in that: the suspension module includes a second magnetic shield panel positioned over the second magnet.
6. Magnetic levitation apparatus according to claim 4, characterised in that: the float deflection measuring sensor is a Hall sensor.
7. Magnetic levitation apparatus according to any of claims 1 to 6, characterised in that: the first magnet is a single annular magnet, or at least three independent magnets are arranged in an annular shape.
8. Magnetic levitation apparatus according to any of claims 1 to 6, characterised in that: the second magnet is a single annular magnet or at least three independent magnets are arranged in an annular shape.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210148826.7A CN114553055A (en) | 2022-02-17 | 2022-02-17 | Magnetic suspension device |
| PCT/CN2023/076819 WO2023155890A1 (en) | 2022-02-17 | 2023-02-17 | Magnetic levitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210148826.7A CN114553055A (en) | 2022-02-17 | 2022-02-17 | Magnetic suspension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114553055A true CN114553055A (en) | 2022-05-27 |
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ID=81676082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210148826.7A Pending CN114553055A (en) | 2022-02-17 | 2022-02-17 | Magnetic suspension device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114553055A (en) |
| WO (1) | WO2023155890A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155890A1 (en) * | 2022-02-17 | 2023-08-24 | 深磁科技(深圳)有限公司 | Magnetic levitation device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946629Y (en) * | 2006-08-21 | 2007-09-12 | 谢弗伊 | Magnetic suspension bearing device |
| CN104270035A (en) * | 2014-10-02 | 2015-01-07 | 陈云飞 | Hybrid magnetic suspension device with three-axis control system |
| CN106921311A (en) * | 2015-12-24 | 2017-07-04 | 成都浮星科技有限公司 | A kind of magnetic suspension engine based on permanent-magnet eddy current technology |
| CN105553337B (en) * | 2016-02-02 | 2017-10-20 | 杨欢 | A kind of magnetic suspension system |
| CN217741591U (en) * | 2022-02-17 | 2022-11-04 | 深磁科技(深圳)有限公司 | Magnetic suspension device |
| CN114553055A (en) * | 2022-02-17 | 2022-05-27 | 深磁科技(深圳)有限公司 | Magnetic suspension device |
-
2022
- 2022-02-17 CN CN202210148826.7A patent/CN114553055A/en active Pending
-
2023
- 2023-02-17 WO PCT/CN2023/076819 patent/WO2023155890A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155890A1 (en) * | 2022-02-17 | 2023-08-24 | 深磁科技(深圳)有限公司 | Magnetic levitation device |
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| Publication number | Publication date |
|---|---|
| WO2023155890A1 (en) | 2023-08-24 |
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