CN105720862B - A kind of magnetic levitation system - Google Patents
A kind of magnetic levitation system Download PDFInfo
- Publication number
- CN105720862B CN105720862B CN201610299354.XA CN201610299354A CN105720862B CN 105720862 B CN105720862 B CN 105720862B CN 201610299354 A CN201610299354 A CN 201610299354A CN 105720862 B CN105720862 B CN 105720862B
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- Prior art keywords
- circuit
- magnetic
- magnetic field
- control unit
- magnet coil
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- 238000005339 levitation Methods 0.000 title claims abstract description 22
- 239000000126 substance Substances 0.000 claims abstract description 55
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000003321 amplification Effects 0.000 claims description 11
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 11
- 239000000725 suspension Substances 0.000 abstract description 22
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Abstract
The invention discloses a kind of magnetic levitation system, including pedestal and suspended substance.Wherein, annular magnet is provided with pedestal, magnet coil is placed in annular magnet inside, and magnet coil is connected with control device；Suspended substance includes power supply, magnetic field sensing circuit, circuit control unit and single magnet coil, power supply is magnetic field sensing circuit, circuit control unit and solenoid, magnetic field sensing circuit and magnet coil are connected respectively to circuit control unit, magnetic field sensing circuit is used to detect the magnetic direction of pedestal in suspended substance moving process, and transmit a signal to circuit control unit, circuit control unit adjusts the sense of current of magnet coil according to the signal for receiving so that the magnetic direction of magnet coil is consistent with the magnetic direction of pedestal.Compared with existing magnetic suspension system, coil circuit of the invention causes that the magnetic direction of circuit is controllable with size, can reduce and put difficulty, and the hoverheight of suspended substance is adjustable.
Description
Technical field
The present invention relates to a kind of magnetic levitation system, and in particular to one kind can adjust suspended substance magnetic direction and hoverheight
Magnetic levitation system.
Background technology
Existing magnetic levitation product, displays suspension by the way of manually substantially.The base of magnetic suspension system is general
Using annular magnet plus electromagnetism adjustment coil composition, certain presumptive area magnetic direction of annulus inner ring and suspended substance magnetic direction
It is identical.But when suspended substance is located at region between annulus magnet inner ring and outer ring, magnetic direction of suspended substance itself and this
When residing magnetic field it is in opposite direction, base can to suspended substance produce suction, influence put during feel so that put process
In experience operability it is poor, and after putting successfully, the hoverheight of suspended substance is non-adjustable.In existing magnetic suspension system
Suspended substance magnetic field is produced using permanent magnet mostly, its magnetic direction can not adjust with size.
Chinese patent CN201520417608.4,《Magnetic levitation system》Disclose a kind of suspended substance and magnetic with permanent magnet
The structure of suspension mechanism.Magnetic suspension mechanism includes center permanent magnet and annular permanent magnet, and annular permanent magnet is around center permanent magnetism
Body sets and separates with center permanent magnet.When suspended substance is normally suspended in magnetic suspension mechanism top, the permanent magnet of suspended substance
Lower surface magnetic is identical with the upper surface magnetic of center permanent magnet, and opposite with the upper surface magnetic of annular permanent magnet.Although
The apparatus structure is simple, but its hoverheight is non-adjustable.
Chinese patent CN201210056800.6,《Magnetic levitation system with suspension function of auto-lift》Disclosed skill
Art, is automatically performed the placement that suspension is carried out on magnetic levitation system, and be provided with by setting lifting assembly on base
Position of suspended substance detection module, the poised state for detecting suspended substance in uphill process.Although the program can change base with
The relative altitude of suspended substance, reaches the adjustable purpose of hoverheight, but suspended substance is easy during base magnet rises
There is shake, be unfavorable for balance.And due to increased lifting assembly, considerably increase the height and understructure of base
Complexity.
The content of the invention
In order to solve above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of adjustable suspended substance
The magnetic levitation system of magnetic direction.
The technical solution adopted by the present invention is as follows：
A kind of magnetic levitation system, including pedestal and suspended substance, are provided with annular magnet in pedestal, electricity is placed in annular magnet inside
Magnetic coil, magnet coil is connected with control device；Suspended substance includes power supply, magnetic field sensing circuit, circuit control unit and list
Individual magnet coil, power supply is magnetic field sensing circuit, circuit control unit and solenoid, magnetic field sensing circuit and electromagnetism
Coil is connected respectively to circuit control unit, and the magnetic field sensing circuit is used to detect the magnetic field of pedestal in suspended substance moving process
Direction, and circuit control unit is transmitted a signal to, the circuit control unit is according to the signal adjustment magnet coil for receiving
The sense of current so that the magnetic direction of magnet coil is consistent with the magnetic direction of pedestal.
The magnetic field sensing circuit includes single magnetic field position sensing element, addition and subtraction circuit and amplifying circuit.
Preferably, the magnetic field position sensing element uses Hall sensor.
The circuit control unit includes single-chip microcomputer and current amplification circuit, and current amplification circuit connects the output of single-chip microcomputer
I/O port and magnet coil.
Further, the current amplification circuit can use triode current amplification circuit or be carried out using discharge circuit
Current amplifier.
The circuit control unit can also adjust the size of current of magnet coil according to input signal.
Further, the input signal is input into by key-press module.
The power supply is battery or external power supply.
Magnetic levitation system of the invention innovatively replaces the permanent magnet in existing suspended substance using electromagnet.Putting
Cheng Zhong, the direction change that suspended substance passes through magnetic field residing for magnetic field sensing circuit inductance, magnetic field of the circuit control unit according to sensing
Direction change adjusts magnetic direction in time, it is to avoid occur when suspended substance moves to base position due to magnetic direction mutually on the contrary with
Base is attracting, is unfavorable for situation about putting.Also, the size of current by coil can be adjusted by circuit control unit
Whole, so as to adjust by the magnetic field intensity of coil, the further suspended substance institute that changes is magnetic field force induced, is finally reached change suspended substance
The purpose of hoverheight, instead of the lifting assembly in existing scheme, reduce the complexity of understructure.With existing magnetic suspension
System is compared, and coil circuit of the invention causes that the magnetic direction of circuit is controllable with size, can reduce and put difficulty, and is suspended
The hoverheight of body is adjustable.
Brief description of the drawings
Fig. 1 puts schematic diagram for suspended substance of the present invention；
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 triode current amplification circuit figure in the embodiment of the present invention.
Specific embodiment
Suspended substance of the present invention puts schematic diagram as shown in figure 1, wherein suspended substance 4 mainly includes the additional circuit of coil block 3
Control unit, mainly includes four magnet coils in pedestal 1, the outside of four magnet coils is cased with an annular magnet, in addition
It is provided with the sensor and control circuit being connected with coil.When suspended substance 4 is normally suspended in 1 top of pedestal, positioned at suspended substance 4
Magnetic direction below coil block is opposite with the magnetic direction of annular permanent magnet upper surface.
As shown in Fig. 2 containing magnetic field sensing integrated circuit, circuit control unit and electromagnetic wire in suspended substance of the present invention 4
Circle, using magnetic field sensing integrated circuit induced field direction change, magnetic field sensing circuit is connected with circuit control unit, circuit control
Unit processed, can before or after putting completion according to the magnetic direction change sense of current that adjustment passes through coil in time of sensing
The size of current by coil is adjusted by circuit control unit, changes the hoverheight of suspended substance 4.Magnetic field sensing collection
Magnetic field sensor preferentially selects hall effect sensor into circuit.Magnet coil is used to produce magnetic field, and is produced using magnetic field
Raw magnetic field force overcomes the gravity suffered by suspended substance, suspended substance 4 is contactlessly suspended in the air.
The magnetic suspension system of prior art during putting, due to pedestal 1 be circular ring magnet, annular magnet outer ring with
Between annular magnet outer ring and inner ring part magnetic direction conversely, and between annular magnet outer ring and inner ring part magnetic field side
To again with the magnetic direction of annular magnet inner ring certain presumptive area conversely, the stabilization of suspended substance 4 float on required directly over magnet it is outstanding
Magnetic direction below floating body is identical with the magnetic direction of certain presumptive area of circular ring magnet inner ring, i.e., need to put suspended substance 4
The inner ring of circular ring magnet certain presumptive area is placed in, suspension effect is produced using magnetic repulsion balancing gravity, if which results in
Suspended substance 4 is balanced by permanent magnet with pedestal 1, then during putting, when the permanent magnet of suspended substance 4 circular ring magnet outer ring with
Between inner ring during part due to magnetic direction conversely, suspended substance 4 can be subject to the stronger suction of base, be unfavorable for putting.The present invention
In, the magnetic field that suspended substance 4 is produced with the magnetic field that magnet coil is produced instead of permanent magnet.Initial setting up passes through magnet coil direction
Electric current when, allow it towards magnetic suspended basement magnetic direction and the magnetic direction of inner ring certain presumptive area of magnetic suspension susceptor body 1
Unanimously, therefore when putting, when suspended substance 4 moves to the position between the inner ring of magnetic suspension pedestal 1 and outer ring, due to magnetic direction
Change cause to be changed rapidly by the potential of magnetic field sensor, due to magnetic field sensing circuit and circuit control unit phase
Even, circuit control unit can quickly detect the potential change of magnetic field sensor and make corresponding adjustment, i.e. adjustment and pass through line
The sense of current of circle so that the magnetic direction by magnet coil is consistent with now residing magnetic direction, by magnetic field same sex phase
The principle of reprimand understands that now pedestal 1 can still produce the repulsion to suspended substance, with the phase of magnetic suspension pedestal 1 when being put so as to avoid
The situation of suction.
Similarly, when suspended substance 4 moves to the inner ring presumptive area of magnetic suspension pedestal 1 top, circuit control unit still may be used
Corresponding change is made with the potential change to magnetic field sensor now, i.e., is changed in time by the direction of coil current so that
Magnetic direction by coil is still identical with now residing magnetic direction.Before and after putting, can be by changing circuit control
The magnitude of voltage at magnet coil two ends in unit, so as to reach purpose of the adjustment by solenoid current size, due to increasing
Coil current, so as to result in the change by the magnetic field intensity of coil, the increase of magnetic field intensity further changes suspension
Magnetic field force suffered by body 4, finally reaches the purpose for changing the hoverheight of suspended substance 4.
Embodiment
The present embodiment provides a kind of magnetic suspension Baffle Box of Bluetooth, and the top of pedestal 1 is suspended in using audio amplifier as suspended substance 4, it is to avoid
Because contacting generation resonance with contactant in sound equipment playing process, so as to influence tonequality.
As shown in figure 3, the adjustable magnetic suspension Baffle Box of Bluetooth of hoverheight, comprising magnetic suspension pedestal 1 and audio amplifier.Its center line
Circle 2 is fixed on coil block 3, and coil block 3 is fixed on suspended substance 4, and coil block 3 is provided with Hall sensor, pedestal 1
Including the substantially horizontally disposed annular permanent magnet in base, and four magnet coils positioned at annular permanent magnet inner ring and
The level control unit being connected with magnet coil.When suspended substance 4 deviates reference position, it is controlled to return to reference position.
A kind of mode for building the hardware unit is given in the present embodiment：As shown in figure 4, coil block 3 is by hall sensing
Integrated circuit, single-chip microcomputer, triode current amplification circuit and magnet coil composition, hall sensing integrated circuit include it is single suddenly
That sensing element, addition and subtraction circuit and amplifying circuit, Hall element can use AN503 type integrated hall sensorses.Meanwhile,
Hall element of the present invention need to only use one for sensing base annular magnet relative to the change in location of suspended substance, and show
Have typically using two or more Hall elements in technology, therefore this programme has saved product cost.Single-chip microcomputer can be adopted
Serial with 51 or 52, the I/O port of single-chip microcomputer is connected with the base stage control end of two triode current amplification circuits, triode electricity
Current amplifier is as shown in figure 5, L1 is magnet coil.
Audio amplifier during putting, by the magnetic direction of pedestal 1 in Hall sensor real-time detection audio amplifier moving process,
Hall sensing circuit is connected with single-chip microcomputer, so that single-chip microcomputer can be fed back by sensing circuit changes its control electricity for exporting I/O port
Pressure, control voltage is changed by triode current amplification circuit by changing the control voltage of the base stage of transistor amplifier
Become transistor collector potential, and transistor collector is connected with magnet coil L1, further change coil both end voltage
Direction, so as to change the sense of current, finally result in the change of magnetic direction, it is to avoid due to magnetic direction phase during putting
The anti-suction for producing influences putting for magnetic suspension system.
Because the control end base stage of transistor amplifier is connected with single-chip microcomputer, control to post by changing single-chip microcomputer inside PWM
The numerical value of storage realizes the respective change of dutycycle, and single-chip microcomputer is connected with button, key value is scanned by single-chip microcomputer,
Single-chip microcomputer is modified according to the key value of scanning to the numerical value of register, so as to change the control of transistor amplifier base stage
Voltage, the change of transistor base control voltage causes the change of the change of collector current, electric current to cause the change of voltage, and
Transistor collector is connected with magnet coil, further changes by the voltage swing of coil circuit so as to change by coil electricity
The size of stream.The change of size of current causes by the change of magnetic field intensity, so as to change suspended substance hoverheight.
Understood based on foregoing description, magnetic levitation system of the invention, coil magnetic field direction during can realizing putting
Adjustment, effectively reduces and puts difficulty, simultaneously because coil current is adjustable, can change by the magnetic field intensity of coil magnetic field, from
And change the hoverheight of suspension.
Claims (8)
1. a kind of magnetic levitation system, including pedestal and suspended substance, it is characterised in that annular magnet, annular magnet are provided with pedestal
Magnet coil is placed in inside, and magnet coil is connected with control device；Suspended substance includes power supply, magnetic field sensing circuit, circuit control
Unit and single magnet coil, power supply are magnetic field sensing circuit, circuit control unit and solenoid, magnetic field sensing
Circuit and magnet coil are connected respectively to circuit control unit, and the magnetic field sensing circuit is used to detecting in suspended substance moving process
The magnetic direction of pedestal, and circuit control unit is transmitted a signal to, the circuit control unit is according to the signal adjustment for receiving
The sense of current of magnet coil so that the magnetic direction of magnet coil is consistent with the magnetic direction of pedestal.
2. a kind of magnetic levitation system according to claim 1, it is characterised in that the 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 the magnetic field position sensing element is using suddenly
That sensor.
4. a kind of magnetic levitation system according to claim 1, it is characterised in that the circuit control unit includes single-chip microcomputer
And current amplification circuit, the output I/O port and magnet coil of current amplification circuit connection single-chip microcomputer.
5. a kind of magnetic levitation system according to claim 4, it is characterised in that current amplification circuit uses triode electric current
Amplifying circuit carries out Current amplifier using discharge circuit.
6. a kind of magnetic levitation system according to claim 1, it is characterised in that the circuit control unit can also basis
Input signal adjusts the size of current of magnet coil.
7. a kind of magnetic levitation system according to claim 6, it is characterised in that the input signal is defeated by key-press module
Enter.
8. according to a kind of magnetic levitation system that one of claim 1 to 7 is described, it is characterised in that the power supply be 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610299354.XA CN105720862B (en) | 2016-05-06 | 2016-05-06 | A kind of magnetic levitation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105720862A CN105720862A (en) | 2016-06-29 |
| CN105720862B true CN105720862B (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610299354.XA Expired - Fee Related CN105720862B (en) | 2016-05-06 | 2016-05-06 | A kind of magnetic levitation system |
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| Country | Link |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN107885114B (en) * | 2017-11-06 | 2020-06-19 | 大连大学 | Suspension type equipment and action control method thereof |
| 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 |
| 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 |
| CN110941081B (en) * | 2019-12-13 | 2021-07-30 | 南通大学 | Magnetic suspension type object stage and control method thereof |
| CN113696726B (en) * | 2020-05-22 | 2023-03-24 | 上海汽车集团股份有限公司 | Automobile and center console with movable position |
| 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 |
| CN112991890B (en) * | 2021-03-24 | 2022-08-30 | 河北腾云信息技术有限公司 | Translation type magnetic suspension system and float translation control method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315804A (en) * | 2011-09-27 | 2012-01-11 | 沈欠辉 | Magnetic suspension apparatus |
| KR101454302B1 (en) * | 2012-10-31 | 2014-10-28 | 한국전기연구원 | Magnetically levitated transportation system for display manufacturing equipment |
| CN202972751U (en) * | 2012-12-07 | 2013-06-05 | 海洋王（东莞）照明科技有限公司 | Magnetic suspension lamp |
| CN104270035A (en) * | 2014-10-02 | 2015-01-07 | 陈云飞 | Hybrid magnetic suspension device with three-axis control system |
| CN205792310U (en) * | 2016-05-06 | 2016-12-07 | 江苏南大五维电子科技有限公司 | A kind of magnetic levitation system |
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2016
- 2016-05-06 CN CN201610299354.XA patent/CN105720862B/en not_active Expired - Fee Related
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| CN105720862A (en) | 2016-06-29 |
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