CN105720862A - Magnetic suspension device - Google Patents
Magnetic suspension device Download PDFInfo
- Publication number
- CN105720862A CN105720862A CN201610299354.XA CN201610299354A CN105720862A CN 105720862 A CN105720862 A CN 105720862A CN 201610299354 A CN201610299354 A CN 201610299354A CN 105720862 A CN105720862 A CN 105720862A
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- circuit
- magnetic
- magnetic field
- control unit
- solenoid
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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
Abstract
The invention discloses a magnetic suspension device. The magnetic suspension device comprises a base and a suspension body, wherein the base is internally provided with an annular magnet; an electromagnetic coil is arranged in the annular magnet; the electromagnetic coil is connected with a control device; the suspension body comprises a power supply, a magnetic field sensing circuit, a circuit control unit and a single electromagnetic coil; the power supply supplies power to the magnetic field sensing circuit, the circuit control unit and the electromagnetic coil; the magnetic field sensing circuit and the electromagnetic coil are connected to the circuit control unit respectively; the magnetic field sensing circuit is used for detecting a magnetic field direction in the base in a movement process of the suspension body, and transmitting a signal to the circuit control unit; and the circuit control unit is used for regulating a current direction of the electromagnetic coil according to the received signal so that the magnetic field direction of the electromagnetic coil and the magnetic field direction of the base keep consistent. Compared with an existing magnetic suspension system, the magnetic field direction and size of the circuit can be controlled through the electromagnetic coil, and the storage difficulty can be reduced; and the suspension height of the suspension body is adjustable.
Description
Technical field
The present invention relates to a kind of magnetic levitation system, be specifically related to a kind of magnetic levitation system that can regulate suspended substance magnetic direction and hoverheight.
Background technology
Existing magnetic levitation product, basic employing mode manually displays float.The base of magnetic suspension system is generally adopted annular magnet and adjusts coil composition plus electromagnetism, and certain presumptive area magnetic direction of annulus inner ring is identical with suspended substance magnetic direction.But when suspended substance region between annulus Magnet inner ring and outer ring, the magnetic direction of suspended substance own is in opposite direction with now residing magnetic field, suspended substance can be produced suction by base, the feel in process is put in impact, make the experience operability in the process of putting poor, and after putting successfully, the hoverheight of suspended substance is non-adjustable.Suspended substance in existing magnetic suspension system adopts permanent magnet to produce magnetic field mostly, and its magnetic direction and size all can not adjust.
Chinese patent CN201520417608.4, " magnetic levitation system " disclose the structure of a kind of suspended substance with permanent magnet and magnetic suspension mechanism.Magnetic suspension mechanism comprises center permanent magnet and annular permanent magnet, and annular permanent magnet arranges around center permanent magnet and separates with center permanent magnet.When suspended substance is normally suspended in above magnetic suspension mechanism, the lower surface magnetic of the permanent magnet of suspended substance is identical with the upper surface magnetic of center permanent magnet, and contrary with the upper surface magnetic of annular permanent magnet.Although this apparatus structure is simple, but its hoverheight is non-adjustable.
Technology disclosed in Chinese patent CN201210056800.6, " there is the magnetic levitation system of float function of auto-lift ", the placement of float it is automatically performed on magnetic levitation system to carry out by arranging lifting assembly on base, and it is provided with position of suspended substance detection module, for detecting the poised state of suspended substance in uphill process.Although the program can change the relative altitude of base and suspended substance, reach the adjustable purpose of hoverheight, but shake easily occurs in suspended substance in the process that base Magnet rises, be unfavorable for balance.And owing to adding lifting assembly, considerably increase the height of base and the complexity of understructure.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, it is an object of the invention to provide the magnetic levitation system of a kind of scalable suspended substance magnetic direction.
The technical solution used in the present invention is as follows:
A kind of magnetic levitation system, including pedestal and suspended substance, is provided with annular magnet in pedestal, the internal solenoid of placing of annular magnet, solenoid is connected with controlling device；Suspended substance includes power supply, magnetic field sensing circuit, circuit control unit and single solenoid, power supply is magnetic field sensing circuit, circuit control unit and solenoid, magnetic field sensing circuit and solenoid are connected respectively to circuit control unit, described magnetic field sensing circuit is for detecting the magnetic direction of pedestal in suspended substance moving process, and transmit a signal to circuit control unit, described circuit control unit adjusts the sense of current of solenoid according to the signal received so that the magnetic direction of solenoid keeps consistent with the magnetic direction of pedestal.
Described magnetic field sensing circuit includes single magnetic field position sensing element, addition and subtraction circuit and amplifying circuit.
Preferably, described magnetic field position sensing element adopts Hall element.
Described circuit control unit includes single-chip microcomputer and current amplification circuit, and current amplification circuit connects output I/O port and the solenoid of single-chip microcomputer.
Further, described current amplification circuit can adopt audion current amplification circuit or adopt discharge circuit to carry out Current amplifier.
Described circuit control unit can also adjust the size of current of solenoid according to input signal.
Further, described input signal is inputted by key-press module.
Described power supply is battery or external power supply.
The magnetic levitation system of the present invention adopts electric magnet to replace the permanent magnet in existing suspended substance innovatively.In the process of putting, the suspended substance direction change by magnetic field residing for magnetic field sensing circuit inductance, circuit control unit adjusts magnetic direction in time according to the magnetic direction change of sensing, avoid the occurrence of when suspended substance moves to base position owing to magnetic direction is attracting with base on the contrary mutually, be unfavorable for situation about putting.And, can be adjusted by the size of current of coil by circuit control unit, thus regulating the magnetic field intensity by coil, further change suspended substance institute magnetic field force induced, it is finally reached the purpose changing suspended substance hoverheight, instead of the lifting assembly in existing scheme, reduce the complexity of understructure.Compared with existing magnetic suspension system, the coil circuit of the present invention makes the magnetic direction of circuit and size controlled, it is possible to reduces and puts difficulty, and the hoverheight of suspended substance is adjustable.
Accompanying drawing explanation
Fig. 1 is that suspended substance of the present invention puts schematic diagram；
Fig. 2 is the basic circuit Organization Chart of suspended substance of the present invention；
Fig. 3 is the magnetic levitation system structural representation of the embodiment of the present invention；
Fig. 4 is the circuit block diagram of the embodiment of the present invention；
Fig. 5 is the audion current amplification circuit figure in the embodiment of the present invention.
Detailed description of the invention
Suspended substance of the present invention puts schematic diagram as shown in Figure 1, wherein suspended substance 4 mainly includes coil block 3 additional circuit control unit, mainly including four solenoids in pedestal 1, the outside of four solenoids is cased with an annular magnet, is additionally provided with the sensor and control circuit that are connected with coil.When above suspended substance 4 is normally suspended in pedestal 1, it is positioned at the magnetic direction below suspended substance 4 coil block contrary with the magnetic direction of annular permanent magnet upper surface.
As shown in Figure 2, containing magnetic field sensing integrated circuit, circuit control unit and solenoid in suspended substance 4 of the present invention, magnetic field sensing integrated circuit induced field direction is utilized to change, magnetic field sensing circuit is connected with circuit control unit, circuit control unit adjusts the sense of current by coil in time according to the magnetic direction change of sensing, before having put or can be adjusted by the size of current of coil by circuit control unit afterwards, change the hoverheight of suspended substance 4.In magnetic field sensing integrated circuit, hall effect sensor preferentially selected by magnetic field sensor.Solenoid is used for producing magnetic field, and utilizes the magnetic field force that magnetic field produces to overcome the gravity suffered by suspended substance, makes suspended substance 4 contactlessly be suspended in the air.
The magnetic suspension system of prior art is in the process of putting, owing to pedestal 1 is circular ring magnet, between annular magnet outer ring with annular magnet outer ring and inner ring, the magnetic direction of part is contrary, and the magnetic direction of part is contrary with the magnetic direction of annular magnet certain presumptive area of inner ring between annular magnet outer ring and inner ring, suspended substance 4 stably floats on and requires directly over Magnet that the magnetic direction below suspended substance is identical with the magnetic direction of circular ring magnet certain presumptive area of inner ring, namely need to be positioned over suspended substance 4 certain presumptive area of inner ring of circular ring magnet, magnetic repulsion balancing gravity is utilized to produce suspension effect, permanent magnet and pedestal 1 is relied on to balance if which results in suspended substance 4, then in the process of putting, when suspended substance 4 permanent magnet part between circular ring magnet outer ring and inner ring owing to magnetic direction is contrary, suspended substance 4 can be subject to the suction that base is stronger, it is unfavorable for putting.In the present invention, suspended substance 4 magnetic field that solenoid produces replaces the magnetic field that permanent magnet produces.When the electric current in solenoid direction is passed through in initial setting up, make it consistent with the magnetic direction of magnetic suspension susceptor body 1 certain presumptive area of inner ring towards magnetic suspended basement magnetic direction, when therefore putting, when suspended substance 4 moves to the position between magnetic suspension pedestal 1 inner ring and outer ring, owing to the change of magnetic direction causes that the electromotive force by magnetic field sensor changes rapidly, owing to magnetic field sensing circuit is connected with circuit control unit, circuit control unit can quickly detect the potential change of magnetic field sensor and make corresponding adjustment, namely the sense of current by coil is adjusted, make by the magnetic direction of solenoid consistent with now residing magnetic direction, the principle repelled each other from the magnetic field same sex, now pedestal 1 still can produce the repulsion to suspended substance, thus avoiding situation attracting with magnetic suspension pedestal 1 when putting.
In like manner, when above suspended substance 4 moves to magnetic suspension pedestal 1 inner ring presumptive area, the potential change of magnetic field sensor now still can be made corresponding change by circuit control unit, namely the direction by coil current is changed in time so that still identical with now residing magnetic direction by the magnetic direction of coil.Before and after putting, can pass through to change the magnitude of voltage at solenoid two ends in circuit control unit, thus reaching to adjust the purpose by solenoid current size, owing to increasing coil current, thus result in the change of magnetic field intensity by coil, the increase of magnetic field intensity further changes the magnetic field force suffered by suspended substance 4, finally reaches the purpose changing suspended substance 4 hoverheight.
Embodiment
The present embodiment provides a kind of magnetic suspension Baffle Box of Bluetooth, using audio amplifier as above suspended substance 4 is suspended in pedestal 1, it is to avoid produce to resonate because contact with contactant in sound equipment playing process, thus affecting tonequality.
As it is shown on figure 3, the adjustable magnetic suspension Baffle Box of Bluetooth of hoverheight, comprise magnetic suspension pedestal 1 and audio amplifier.Its coil 2 is fixed on coil block 3, coil block 3 is fixed on suspended substance 4, coil block 3 is provided with Hall element, pedestal 1 includes the annular permanent magnet that basic horizontal is arranged in base, and is positioned at four solenoids of annular permanent magnet inner ring and the level control unit being connected with solenoid.When suspended substance 4 deviates reference position, control it and return to reference position.
The present embodiment provides a kind of mode building this hardware unit: as shown in Figure 4, coil block 3 is made up of hall sensing integrated circuit, single-chip microcomputer, audion current amplification circuit and solenoid, hall sensing integrated circuit includes single hall sensor, addition and subtraction circuit and amplifying circuit, and Hall element can adopt AN503 type integrated hall sensors.Meanwhile, Hall element of the present invention only need to use one for sensing base annular magnet relative to the change in location of suspended substance, and is generally adopted two or more Hall element in prior art, and therefore this programme has saved product cost.Single-chip microcomputer can adopt 51 or 52 series, and the base stage of the I/O port of single-chip microcomputer and two audion current amplification circuits controls end and is connected, and audion current amplification circuit is as it is shown in figure 5, L1 is solenoid.
Audio amplifier is in the process of putting, the magnetic direction of pedestal 1 in audio amplifier moving process is detected in real time by Hall element, hall sensing circuit is connected with single-chip microcomputer, thus single-chip microcomputer can pass through sensing circuit feedback and change the control voltage of its output I/O port, control voltage by audion current amplification circuit, namely by changing the control voltage change transistor collector electromotive force of the base stage of transistor amplifier, and transistor collector is connected with solenoid L1, further change the direction of coil both end voltage, thus changing the sense of current, finally result in the change of magnetic direction, avoid the suction produced on the contrary due to magnetic direction in the process of putting and affect putting of magnetic suspension system.
Because the control end group pole of transistor amplifier is connected with single-chip microcomputer, the respective change of dutycycle is realized by changing the internal PWM of the single-chip microcomputer numerical value controlling depositor, single-chip microcomputer is connected with button, by single-chip microcomputer, key value is scanned, the numerical value of depositor is modified by single-chip microcomputer according to the key value of scanning, thus changing the control voltage of transistor amplifier base stage, the change of transistor base control voltage causes the change of collector current, the change of electric current causes the change of voltage, and transistor collector is connected with solenoid, change the voltage swing by coil circuit further thus changing the size by coil current.The change of size of current causes the change by magnetic field intensity, thus changing suspended substance hoverheight.
Based on foregoing description it can be seen that the magnetic levitation system of the present invention, it is possible to realize putting the adjustment of process coil magnetic direction, effectively reduce and put difficulty, simultaneously because coil current is adjustable, the magnetic field intensity by coil magnetic field can be changed, thus changing the hoverheight of float.
Claims (8)
1. a magnetic levitation system, including pedestal and suspended substance, it is characterised in that be provided with annular magnet in pedestal, and the internal solenoid of placing of annular magnet, solenoid is connected with controlling device；Suspended substance includes power supply, magnetic field sensing circuit, circuit control unit and single solenoid, power supply is magnetic field sensing circuit, circuit control unit and solenoid, magnetic field sensing circuit and solenoid are connected respectively to circuit control unit, described magnetic field sensing circuit is for detecting the magnetic direction of pedestal in suspended substance moving process, and transmit a signal to circuit control unit, described circuit control unit adjusts the sense of current of solenoid according to the signal received so that the magnetic direction of solenoid keeps consistent with the magnetic direction of pedestal.
2. a kind of magnetic levitation system according to claim 1, it is characterised in that described magnetic field sensing circuit includes single magnetic field position sensing element, addition and subtraction circuit and amplifying circuit.
3. a kind of magnetic levitation system according to claim 2, it is characterised in that described magnetic field position sensing element adopts Hall element.
4. a kind of magnetic levitation system according to claim 1, it is characterised in that described circuit control unit includes single-chip microcomputer and current amplification circuit, and current amplification circuit connects output I/O port and the solenoid of single-chip microcomputer.
5. a kind of magnetic levitation system according to claim 4, it is characterised in that current amplification circuit adopts audion current amplification circuit or adopts discharge circuit to carry out Current amplifier.
6. a kind of magnetic levitation system according to claim 1, it is characterised in that described circuit control unit can also adjust the size of current of solenoid according to input signal.
7. a kind of magnetic levitation system according to claim 6, it is characterised in that described input signal is inputted by key-press module.
8. a kind of magnetic levitation system according to claim 1 to 7, it is characterised in that described power supply is battery or external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610299354.XA CN105720862B (en) | 2016-05-06 | 2016-05-06 | A kind of magnetic levitation system |
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| CN201610299354.XA CN105720862B (en) | 2016-05-06 | 2016-05-06 | A kind of magnetic levitation system |
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| CN105720862A true CN105720862A (en) | 2016-06-29 |
| CN105720862B CN105720862B (en) | 2017-07-07 |
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| CN201610299354.XA Active CN105720862B (en) | 2016-05-06 | 2016-05-06 | A kind of magnetic levitation system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107193405A (en) * | 2017-06-02 | 2017-09-22 | 广州途威慧信息科技有限公司 | A kind of magnetic suspension mouse pad control method |
| CN107315493A (en) * | 2017-06-02 | 2017-11-03 | 广州途威慧信息科技有限公司 | A kind of magnetic suspension mouse pad device |
| CN107390904A (en) * | 2017-06-02 | 2017-11-24 | 广州途威慧信息科技有限公司 | A kind of servo-actuated mouse pad |
| CN107885114A (en) * | 2017-11-06 | 2018-04-06 | 大连大学 | Floated equipment and its method of controlling operation |
| CN108235177A (en) * | 2018-01-25 | 2018-06-29 | 芜湖应天光电科技有限责任公司 | A kind of multifunctional maglev sound equipment based on APP |
| CN108870474A (en) * | 2018-06-12 | 2018-11-23 | 伊莱克斯(杭州)家用电器有限公司 | A kind of electromagnetic oven |
| CN109077538A (en) * | 2018-09-13 | 2018-12-25 | 安徽佳禾农业生态休闲观光有限公司 | A kind of fruits and vegetables placement showing stand |
| CN110941081A (en) * | 2019-12-13 | 2020-03-31 | 南通大学 | Magnetic suspension type object stage and control method thereof |
| CN112767801A (en) * | 2021-03-04 | 2021-05-07 | 河北腾云信息技术有限公司 | Traveling type magnetic suspension demonstration system and float static suspension and traveling control method |
| CN112991890A (en) * | 2021-03-24 | 2021-06-18 | 河北腾云信息技术有限公司 | Translation type magnetic suspension system and float translation control method thereof |
| CN113696726A (en) * | 2020-05-22 | 2021-11-26 | 上海汽车集团股份有限公司 | Automobile and center console with movable position |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107193405A (en) * | 2017-06-02 | 2017-09-22 | 广州途威慧信息科技有限公司 | A kind of magnetic suspension mouse pad control method |
| CN107315493A (en) * | 2017-06-02 | 2017-11-03 | 广州途威慧信息科技有限公司 | A kind of magnetic suspension mouse pad device |
| CN107390904A (en) * | 2017-06-02 | 2017-11-24 | 广州途威慧信息科技有限公司 | A kind of servo-actuated mouse pad |
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| CN107885114A (en) * | 2017-11-06 | 2018-04-06 | 大连大学 | Floated equipment and its method of controlling operation |
| CN108235177A (en) * | 2018-01-25 | 2018-06-29 | 芜湖应天光电科技有限责任公司 | A kind of multifunctional maglev sound equipment based on APP |
| CN108870474A (en) * | 2018-06-12 | 2018-11-23 | 伊莱克斯(杭州)家用电器有限公司 | A kind of electromagnetic oven |
| CN109077538A (en) * | 2018-09-13 | 2018-12-25 | 安徽佳禾农业生态休闲观光有限公司 | A kind of fruits and vegetables placement showing stand |
| CN109077538B (en) * | 2018-09-13 | 2020-05-01 | 安徽佳禾农业生态休闲观光有限公司 | Fruit and vegetable placing and displaying rack |
| CN110941081A (en) * | 2019-12-13 | 2020-03-31 | 南通大学 | Magnetic suspension type object stage and control method thereof |
| CN110941081B (en) * | 2019-12-13 | 2021-07-30 | 南通大学 | Magnetic suspension type object stage and control method thereof |
| CN113696726A (en) * | 2020-05-22 | 2021-11-26 | 上海汽车集团股份有限公司 | Automobile and center console with movable position |
| CN112767801A (en) * | 2021-03-04 | 2021-05-07 | 河北腾云信息技术有限公司 | Traveling type magnetic suspension demonstration system and float static suspension and traveling control method |
| CN112767801B (en) * | 2021-03-04 | 2022-08-30 | 河北腾云信息技术有限公司 | Traveling type magnetic suspension demonstration system and float static suspension and traveling control method |
| CN112991890A (en) * | 2021-03-24 | 2021-06-18 | 河北腾云信息技术有限公司 | Translation type magnetic suspension system and float translation control method thereof |
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| CN105720862B (en) | 2017-07-07 |
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