CN104901602A - Small electromagnetic acceleration system - Google Patents
Small electromagnetic acceleration system Download PDFInfo
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- CN104901602A CN104901602A CN201510243484.7A CN201510243484A CN104901602A CN 104901602 A CN104901602 A CN 104901602A CN 201510243484 A CN201510243484 A CN 201510243484A CN 104901602 A CN104901602 A CN 104901602A
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Abstract
The present invention provides a small electromagnetic acceleration system which comprises a ZVS boost module which converts low voltage direct current into high frequency alternating current, a power supply module which provides low voltage direct current to the ZVS boost module, a voltage control module which carries out automatic controlling on the output voltage of the ZVS boost module, a control signal module which is used for detecting the position of an accelerated object and generating a control signal, a coaxial coil set module for generating a strong pulse magnetic field to accelerate a magnetic or non-magnetic conductor, a switch tube module which is formed by a solid-state switch, controlled by the signal of the control signal module and used for conducting a capacitor and an emitting coil circuit, a motherboard with the integration of interfaces which are connected to the above modules and each acceleration unit capacitance and voltage indication, and a speed measurement module which is used for detecting the speed of the accelerated object. The system has the advantages of small size, light weight, high efficiency, long life, and the direct display of an acceleration process to people.
Description
Technical field
The present invention relates to electromagnetism accelerator art field, particularly relate to a kind of compact electromagnetic accelerating system.
Background technology
Electromagnetism accelerator conventional at present has reluctance coil accelerator, synchronous induction coil accelerator;
Reluctance coil accelerator: be made up of the yoke iron core of a series of solenoid-activated coil and ferromagnetic material.So-called magnetic resistance, refers to and stops magnetic circuit around coil to set up the resistance of magnetic flux.Obviously, in coil lumen, place ferromagnetic material and can reduce magnetic resistance.When iron core moves, the magnetic resistance of the magnetic circuit of wound coil will change, so just create active force to iron core bullet.The iron core of ferromagnetic material has larger magnetic permeability (μ than the air replaced by it
p>>1).When iron core advances to hub of a spool, magnetic flux is easier to be formed and pass through, this is because the air-gap of magnetic circuit diminishes, the magnetic resistance of magnetic circuit is also little, now also minimum to the active force of iron core.When iron core is removed from hub of a spool, originally drew iron core magnetic force forward to become now and draw iron core backward, and therefore, some measure must be taked immediately not to be pulled to make it after iron core arrives hub of a spool.Should be specifically noted that, iron core bullet is only by pulling force, and not by thrust, it does not possess the advantage that some coil accelerator can draw bullet when suitably selecting two kinds of the direction of the winding current, can push away.But because ferromagnetic material occurs in magnetic circuit, will, to analysis arrival nonlinear problem, thus when determining accelerative force and winding inductance, computer finite element should be used to encode.
Synchronous induction coil accelerator: last century the mid-1960s, because compressed magnetic flux, reaction engine and metal forming etc. are applied in succession, make single-stage induction coil accelerator be come out and develop.Single-stage induction coil accelerator structure is very simple, is generally made up of accumulation power supply (as Capacitor banks), switch, drive coil and bullet coil (or by driving ring).Usual drive coil and bullet coil are coaxial and isodiametric, and this is the tightst in order to ensure magnetic coupling.When pulse current is added to drive coil, bullet coil interlinkage flux induces the contrary ring current in a direction, and the magnetic field interaction between this ring current and two coils produces Ampere force, and this power drives bullet coil advance the puck.Due to the electric current of bullet coil internal induction and drive current reverse, so only there is the actuating force of repulsion mode in pulse induction coilgun.
Multistage pulses induction coil accelerator is formed by multiple single-stage coil tandem.When bullet coil arrives the appropriate location of drive coil, this drive coil is discharged, and its magnetic field changes in bullet coil, with induced current.Drive coil is discrete, and general each drive coil respectively has the independent current source of oneself, and is synchronously changed by switch.Bullet coil can be multiturn closing coil, also can be metal sleeve (i.e. single turn bullet coil).Owing to utilizing flux change induction in synchronous discharge and bullet coil to accelerate, therefore be referred to as synchronous induction coil accelerator.
Current electromagnetism accelerator has following shortcoming:
1, traditional accelerator adopts single-stage aero mode usually, surge is high, regular tap cannot bear, and but high power switch price is abnormal expensive, even and arc-suppressing switch, when connecting high-voltage great-current, also can the ablation because of contact resistance, cause switch life short, and loss is also very large, makes acceleration efficiency low.
2, conventional boost mode is low frequency (major part adopts " 220V, 50HZ " to rise to high pressure by transformer), and bulky, weight is large, and power is little, and efficient energy conversion is low.
3, the accelerator now dropping into application generally belongs to industrial and military, although accelerated object carries kinetic energy greatly, energy storage device quality is also abnormal large, is generally carry out stored transmit electric energy once with several warehouse.Such device volume is huge and heavy, cannot carry, and internal structure is closed, and cannot intuitively show acceleration principle and working mechanism for people.And some experiments in modern age are by the restriction of technical development of computer, cannot carry out calculating to introducing in electromagnetism accelerator the nonlinear problem that ferromagnetic substance brings and analyze, therefore need a large amount of tests just can find the parameter (because the independent variable affecting acceleration efficiency and speed in this system has 11) that one group of efficiency is slightly high, and efficiency is general comparatively low.
4, traditional electromagnetism accelerator, can only work with monotype (magnetic resistance pattern or inductive mode).
Summary of the invention
Based on the problem that background technology proposes, the present invention proposes a kind of compact electromagnetic accelerating system, and volume of the present invention is little, lightweight, efficiency is high, the life-span is long, can show accelerator directly to people.
A kind of compact electromagnetic accelerating system, comprising:
ZVS boost module, is converted into high-frequency ac by the low-voltage direct 12V-24V of input through two inductance ZVS circuit, and then input high frequency transformer and boost, peak value higher than 450V, then carries out full-bridge rectification to this high pressure, achieves the high-power boosting under small size.
Power module, for ZVS module provides low-voltage DC;
Voltage control module, samples to the high pressure that ZVS boost module exports, and when reaching predetermined voltage, the action of solid-state relay in the Control ZVS module in voltage control module, cuts off the supply of electric power of ZVS module;
Control signal module, for detecting accelerated ferrimagnet present position and producing control signal;
Coaxial coil group module, for generation of strong pulsed magnetic field to accelerate magnetic or non-magnetic conductor;
Energy-storage module, interim apparatus for storing electrical energy, is made up of capacitance group;
Switching tube module, is made up of solid-state switch pipe, the signal controlling of suspension control signal module, for conducting electric capacity and transmitting coil loop;
Speed measuring module, for detecting the speed of accelerated object;
Mainboard module, is integrated with the interface with above-mentioned model calling, and the instruction of each accelerator module capacitance voltage.
Preferably, control signal module is made up of integrated electro switching circuit and photoelectric probe, and photoelectric probe is made up of infrared transmitting tube and infrared receiving tube, for detecting the position of accelerated ferrimagnet, and gives photoswitch circuit signal feedback.
Preferably, coaxial coil group module comprises coaxial coil group, and coaxial coil group is by enamel covered wire coiling in the same way, and its number of turn, wire diameter and the number of plies determine by being accelerated ferrimagnet, and whole coil outer is wrapped up by copper adhesive tape, with shield electromagnetic.
Preferably, energy-storage module capacity determines because of the coaxial coil group number of turn and the number of plies, accelerated magnetic material mass, magnetic permeability and initial velocity.
Preferably, energy-storage module adopts withstand voltage to be the electrochemical capacitor of 450V.
Preferably, power module is made up of the Li-ion batteries piles that energy storage density is high.
Preferably, switching tube module adopts model to be 70TPS16 thyristor.
Preferably, speed measuring module is made up of single-chip microcomputer, signal acquisition circuit, charactron and independent current source.
Present invention uses ZVS boost module to boost, achieve small-volume large-power boosting, and adopt voltage control module to realize the break-make of ZVS boost module, it is 70TPS16 thyristor that switching tube module have employed high-power model, and by coil accelerator simulation software, by analyzing the initial velocity of LC resonance time and accelerated ferrimagnet, quality, the parameters such as magnetic permeability, collocation capacitance and the number of turn of coil and the number of plies and wire diameter, and carry out a large amount of analogue simulation, search out the data that a group is suitable for small size accelerator, achieve once huge electromagnetism accelerating system miniaturized.In view of the feature of its miniaturization, can show the whole process of acceleration directly to people, application electromagnetic force being accelerated to object has science popularization effect.
The present invention adopts multiple unit aero mode, by gross energy reasonable layout to each accelerator module, reduce moment surge current to reduce impact to construction of switch, and employ solid-state switch as construction of switch, greatly reduce switching loss, improve acceleration efficiency, substantially prolongs long service life; The present invention is by ZVS(zero voltage switch) low-voltage direct is transformed high-frequency ac (higher than 40KHZ), carry high frequency transformer to boost, volume is little, lightweight, power is large, efficient energy conversion is high, and makes whole electromagnetism accelerating system to depart from network operation, reduces environmental factor to the impact of its work; The present invention is by designing system to multiple module, and the design of each module take into account this system is carried out miniaturized object, it mainly contains the significantly improvement of capacitance group module and coil groups group module.Simultaneously, by accelerating simulation software by coil type electromagnetism, by a large amount of analogue simulations, while guarantee acceleration efficiency, Matching Relation in mixing system between 11 variablees, quality and volume are reduced greatly, reaches the degree that a people can easily carry, make it to become a real compact electromagnetic accelerating system.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of compact electromagnetic accelerating system that the present invention proposes.
Fig. 2 is ZVS inversion and the voltage automatically controlled circuit diagram of a kind of compact electromagnetic accelerating system that the present invention proposes.
Fig. 3 is the circuit connection diagram of a kind of compact electromagnetic accelerating system that the present invention proposes.
Fig. 4 is the circuit diagram of the accelerator module of a kind of compact electromagnetic accelerating system that the present invention proposes.
Embodiment
As Figure 1-4, Fig. 1 is the structured flowchart of a kind of compact electromagnetic accelerating system that the present invention proposes; Fig. 2 is ZVS inversion and the voltage automatically controlled circuit diagram of a kind of compact electromagnetic accelerating system that the present invention proposes; Fig. 3 is the circuit connection diagram of a kind of compact electromagnetic accelerating system that the present invention proposes; Fig. 4 is the circuit diagram that a kind of compact electromagnetic accelerating system that the present invention proposes is accelerated ferrimagnet.
With reference to Fig. 1-4, a kind of compact electromagnetic accelerating system that the embodiment of the present invention proposes, comprising:
ZVS boost module, is converted into high-frequency ac by the low-voltage direct 12V-24V of input through two inductance ZVS circuit, and then input high frequency transformer and boost, peak value higher than 450V, then carries out full-bridge rectification to this high pressure, achieves the high-power boosting under small size.
Power module, for ZVS module provides low-voltage DC, the Li-ion batteries piles high by energy storage density forms.
Voltage control module, samples to the high pressure that ZVS boost module exports, and when reaching predetermined voltage, the action of solid-state relay in the Control ZVS module in voltage control module, cuts off the supply of electric power of ZVS module.
Control signal module, for detecting accelerated ferrimagnet present position and producing control signal; Control signal module is made up of integrated electro switching circuit and photoelectric probe, and photoelectric probe is made up of infrared transmitting tube and infrared receiving tube, for detecting the position of accelerated ferrimagnet, and gives photoswitch circuit signal feedback.
Coaxial coil group module, for generation of strong pulsed magnetic field to accelerate magnetic or non-magnetic conductor; Coaxial coil group module comprises coaxial coil group, and coaxial coil group is by enamel covered wire coiling in the same way, and its number of turn, wire diameter and the number of plies determine by being accelerated ferrimagnet, and whole coil outer is wrapped up by copper adhesive tape, with shield electromagnetic.
Energy-storage module, interim apparatus for storing electrical energy, is made up of capacitance group; Energy-storage module capacity is determined by the coaxial coil group number of turn and the number of plies, accelerated magnetic material mass, magnetic permeability and initial velocity, and general employing withstand voltage is the electrochemical capacitor of 450V.
Switching tube module, is made up of solid-state switch pipe, the signal controlling of suspension control signal module, for conducting electric capacity and transmitting coil loop; Switching tube module adopts model to be 70TPS16 thyristor particularly.
Speed measuring module, speed measuring module is made up of single-chip microcomputer, signal acquisition circuit, charactron and independent current source, for detecting the speed of accelerated object.
Mainboard module, is integrated with the interface with above-mentioned model calling, and each cell capacitance voltage instruction of energy-storage module.
Operating procedure of the present invention is as follows: for reluctance type electromagnetism aero mode,
1, system assembles: according to Fig. 1-3, assembling is in kind; Note: 1, when accessing ZVS boost module, first should disconnect ZVS boost module switch, then accessing compact electromagnetic accelerating system; 2, a direct current 500V voltmeter in the parallel connection of ZVS boost module high-voltage output end, in this, as the Real-Time Monitoring of capacitance group voltage in energy-storage module.
2, channel check: check that whether all circuit connect normal, must not have poor wire connection or connection error.
3, prepare before experiment: place a sandbag at the ferrimagnet outlet book of coaxial coil group, to consume the larger kinetic energy carried after ferrimagnet is accelerated, prevent from launching and hurt sb.'s feelings; All irrelevant article on cleaning experimental bench; All digital equipments should from least 1 meter, this device, in case pulsed magnetic field damages its internal electronic device; Due to ferrimagnet accelerated after, carry larger kinetic energy, therefore anyone must not be in coaxial coil place straight line.
4, tentatively electrical testing is gone up: open ZVS boost module switch, wait for that energy-storage module voltage disconnects this switch after reaching 150V, put into default ferrimagnet in another one end of coaxial coil group ferromagnetism material outlet, press acceleration button, can accelerate this magnetic material.
5, formally power on experiment: after the success of the test that tentatively powers on, closed switch of the power supply module, waits for that ZVS boost module terminates to energy-storage module charging always, again puts into default ferrimagnet, press acceleration switch, accelerating system just can be carried out all one's effort to this ferrimagnet and be accelerated.
The present invention can also with induction type or magnetic resistance--the work of induction composite electromagnetic aero mode, by amendment system parameters, multi-mode (magnetic resistance---induction composite mode, magnetic resistance pattern, inductive mode) work can be realized, for follow-up Experimental Research and exploitation provide broad space.
In a particular embodiment, following table data are by constantly coordinating parameters value in this system, by a large amount of analogue simulations, and update and make it at utmost level off to miniaturized feature to draw, be suitable for cheap solid-state switch, low surge, quality is little, the experiment parameter that acceleration efficiency is relatively high.It comparatively meets the feature of electromagnetism accelerating system miniaturization.
In order to ensure that electromagnetism accelerating system finally can realize miniaturized feature, secure some parameters at the beginning of experiment, its every data are as follows:
1, quality, diameter, length, the saturated magnetic conductance of ferrimagnet.(concrete numerical value: quality=5.2g; Diameter=6mm; Length=30mm; Saturated magnetic conductance=1.8T)
2, the copper paint envelope curve density used and conductance.(density=8920kg/m^3; Conductance=5.8*10^7Siemens/m)
3, the length of coaxial coil and the diameter of institute's use support.(length=30mm; Stent diameter=8mm)
4, the withstand voltage of electric capacity.(withstand voltage=450V)
In the present invention, voltage control module can adopt Single-chip Controlling; ZVS boost module can use city's electric boost instead or the boosting of other switching circuits substitutes; In control signal generation module, the generation of control signal can produce by modes such as single-chip microcomputer, metal contact piece and magnetic couplings; In power module, battery can change civil power into, but the boosting parameter of correspondence also should change thereupon.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; replaced as technical scheme of the present invention and inventive concept thereof are equal to or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1. a compact electromagnetic accelerating system, is characterized in that, comprising:
ZVS boost module, is converted into high-frequency ac by the low-voltage direct 12V-24V of input through two inductance ZVS circuit, and then input high frequency transformer and boost, peak value higher than 450V, then carries out full-bridge rectification to this high pressure;
Power module, for ZVS module provides low-voltage DC;
Voltage control module, samples to the high pressure that ZVS boost module exports, and when reaching predetermined voltage, the action of solid-state relay in the Control ZVS module in voltage control module, cuts off the supply of electric power of ZVS module;
Control signal module, for detecting accelerated ferrimagnet present position and producing control signal;
Coaxial coil group module, for generation of strong pulsed magnetic field to accelerate magnetic or non-magnetic conductor;
Energy-storage module, interim apparatus for storing electrical energy, is made up of capacitance group;
Switching tube module, is made up of solid-state switch pipe, the signal controlling of suspension control signal module, for conducting electric capacity and transmitting coil loop;
Speed measuring module, for detecting the speed of accelerated object;
Mainboard module, is integrated with the interface with above-mentioned model calling, and the instruction of each accelerator module capacitance voltage.
2. compact electromagnetic accelerating system as claimed in claim 1, it is characterized in that, control signal module is made up of integrated electro switching circuit and photoelectric probe, photoelectric probe is made up of infrared transmitting tube and infrared receiving tube, for detecting the position of accelerated ferrimagnet, and give photoswitch circuit signal feedback.
3. compact electromagnetic accelerating system as claimed in claim 1, it is characterized in that, coaxial coil group module comprises coaxial coil group, coaxial coil group is by enamel covered wire coiling in the same way, its number of turn, wire diameter and the number of plies determine by being accelerated ferrimagnet, whole coil outer is wrapped up by copper adhesive tape, with shield electromagnetic.
4. compact electromagnetic accelerating system as claimed in claim 1, is characterized in that, energy-storage module capacity because of the coaxial coil group number of turn and the number of plies, be accelerated magnetic material mass, magnetic permeability and initial velocity and determine.
5. compact electromagnetic accelerating system as claimed in claim 1, is characterized in that, energy-storage module adopts withstand voltage to be the electrochemical capacitor of 450V.
6. compact electromagnetic accelerating system as claimed in claim 1, it is characterized in that, power module is made up of the Li-ion batteries piles that energy storage density is high.
7. compact electromagnetic accelerating system as claimed in claim 1, is characterized in that, switching tube module adopts model to be 70TPS16 thyristor.
8. compact electromagnetic accelerating system as claimed in claim 1, it is characterized in that, speed measuring module is made up of single-chip microcomputer, signal acquisition circuit, charactron and independent current source.
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| CN201510243484.7A CN104901602A (en) | 2015-05-14 | 2015-05-14 | Small electromagnetic acceleration system |
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| CN201510243484.7A CN104901602A (en) | 2015-05-14 | 2015-05-14 | Small electromagnetic acceleration system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109490004A (en) * | 2018-12-29 | 2019-03-19 | 珠海九源电力电子科技有限公司 | A kind of symmetrical expression electromagnetic drive experimental system and control method |
| CN110095252A (en) * | 2019-04-19 | 2019-08-06 | 南京航空航天大学 | Magnetic droplet accelerator and its working method |
| CN110207947A (en) * | 2019-05-08 | 2019-09-06 | 南京航空航天大学 | Drop accelerator and method |
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| CN202501798U (en) * | 2012-03-19 | 2012-10-24 | 程阳 | Coil acceleration type electromagnetic rail gun |
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| CN102312437A (en) * | 2011-10-28 | 2012-01-11 | 常胜 | Electromagnetic accelerator type piling machine |
| CN202501798U (en) * | 2012-03-19 | 2012-10-24 | 程阳 | Coil acceleration type electromagnetic rail gun |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109490004A (en) * | 2018-12-29 | 2019-03-19 | 珠海九源电力电子科技有限公司 | A kind of symmetrical expression electromagnetic drive experimental system and control method |
| CN109490004B (en) * | 2018-12-29 | 2020-11-24 | 珠海九源电力电子科技有限公司 | Symmetric electromagnetic driving experiment system and control method |
| CN110095252A (en) * | 2019-04-19 | 2019-08-06 | 南京航空航天大学 | Magnetic droplet accelerator and its working method |
| CN110207947A (en) * | 2019-05-08 | 2019-09-06 | 南京航空航天大学 | Drop accelerator and method |
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Application publication date: 20150909 |