CN105790342A - Magnetic fluid motion power generation-based general charging device - Google Patents
Magnetic fluid motion power generation-based general charging device Download PDFInfo
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- CN105790342A CN105790342A CN201410826352.2A CN201410826352A CN105790342A CN 105790342 A CN105790342 A CN 105790342A CN 201410826352 A CN201410826352 A CN 201410826352A CN 105790342 A CN105790342 A CN 105790342A
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Abstract
The invention provides a magnetic fluid motion power generation-based general charging device, which comprises a power generation device, a buffer conversion circuit and a charging management chip, wherein the power generation device comprises a cavity capable of sealing a magnetic fluid; an N pole and an S pole of an ultrathin magnet are fixed on the front surface and the back surface of the cavity respectively; multiple turns of metal coils are wound outside the cavity and the magnet; two ends of each metal coil are fixed through terminals; the buffer conversion circuit is connected to the outside of the power generation device and comprises a rectifier and filter circuit, an energy storage element and a voltage stabilizing chip; the charging management chip is applied to charging management of a lithium battery; electric energy generated by the power generation device is subjected to AC/DC conversion and ripple filtration through the rectifier and filter circuit; the energy is transiently stored into the energy storage element and then is input into the voltage stabilizing chip; and the voltage stabilizing chip takes charge of generating a standard voltage required for the charging management chip. Conversion from motion kinetic energy to the electric energy is achieved through introducing magnetic fluid power generation; and the problem of passive emergency power supply of equipment of a mobile phone and the like is solved.
Description
Technical field
The present invention relates to field of power supplies, particularly relate to a kind of universal charging device based on magnetic fluid movement power generation.
Background technology
Along with developing rapidly of information technology and hardware technology, smart mobile phone has progressively replaced computer becomes the amusement in people's life and municipal office center, the performance of one mobile phone alreadys more than the computer disposal ability of early stage, the CPU of 1G tetra-core, the internal memory of 1～2GB, the solid dish of 16～128GFLASH, the broadband access network of 4G/WiFi, powerful operating system and abundant application program, everything office that could realize on computers before allowing, see a film, play games, the functions such as chat, nowadays also become extremely usual on mobile phone, the epoch of mobile Internet arrive, the new frame of intelligent terminal and cloud service changes people's traditional pattern of life gradually.
The application function of mobile phone gets more and more, screen is also increasing, more and more gorgeous, the speed that CPU and internal memory run is also more and more faster, the uninterrupted unlatching of the data networks such as WiFi is also accustomed to, also have GPS navigation, each sensor use also essential, these make the power consumption that system needs also increasing, although the capacity of battery is also followed by double, but people still feel awkward, every day will look about the place of charging with loaded down with trivial details charger, or with heavy charger baby, the electricity being inadequate at any time is on tenterhooks.
Active charging has a problem in that the source needing to find charging, or socket, or portable power source, socket is not that each place has, the capacity of portable power source is also used up greatly when forgetting to fill again, this is the shortcoming that it is fatal, and generally when needing most electricity, mobile phone, portable power source but do not have electricity.Based on this, find a kind of passive, the mode of emergent charging can just become a thing highly significant whenever and wherever possible, be desirable to provide a kind of as far as possible efficiently, can the natural living habit daily by people and charge and the mode of low cost, this is by the life of greatly convenient people.
Summary of the invention
The present invention proposes a kind of universal charging device based on magnetic fluid movement power generation, the motion energy conversion to electric energy is realized by the introducing of magnetohydrodynamic generator, solve the passive powerup issue of the equipment such as mobile phone, use for people electronic equipment to provide emergent and careful passive power supply settling mode outside.
The technical scheme is that and be achieved in that:
A kind of universal charging device based on magnetic fluid movement power generation, its structure includes:
TRT, it include one can the cavity of airtight magnetic fluid, described cavity tow sides fix N pole and the S pole of ultra-thin Magnet respectively, be wound around some circle wire coils, and fixed by terminal at the two ends of wire coil outside cavity and Magnet；Thus achieve the positive and negative polarities of power supply；
Buffering change-over circuit, it is connected to outside described TRT, including current rectifying and wave filtering circuit, energy-storage travelling wave tube and voltage stabilizing chip；
Charging management chip, for the Charge Management of lithium battery, it is achieved classification charging, overvoltage protection, overheat protector, short-circuit protection, problem are reported to the police.
The electric energy that described TRT produces, carry out AC/DC conversion through described current rectifying and wave filtering circuit to filter with ripple, then energy transient state being stored in energy-storage travelling wave tube, then be input in the voltage stabilizing chip of next stage, voltage stabilizing chip is responsible for producing the normal voltage that charging management chip needs.
This buffering change-over circuit is for the voltage filter exported by hydromagnetic generating device and stablizes, it is provided that the 5V voltage output of standard, it is to avoid shake ripple voltage and the surge voltage destruction to charging circuit and electromagnetism.
In technique scheme, the cavity of the airtight magnetic fluid of described TRT preferably employs the cavity of two ends point, flattened medial shape.
In technique scheme, described wire coil preferably employs the copper conductor that internal resistance is less, on-state rate is high.The cross-sectional area of copper is more big, and its impedance is more little, more big by electric current, it is possible to provide bigger electric current.
In technique scheme, the current rectifying and wave filtering circuit of described buffering change-over circuit adopts efficient rectifier bridge+RC-π filter circuit；Described voltage stabilizing chip adopts conventional 5V voltage stabilizing chip, and such as LM7805/LM1575T-5.0 etc., voltage stabilizing chip input voltage ranges for 3～7V, and output area is 4.8～5.2V.
When generating electricity, user shakes mobile phone or other are with the equipment of this universal charging device, described TRT is made to produce electric energy by electromagnetic induction, this electric energy first passes around current rectifying and wave filtering circuit and processes, and carries out AC/DC conversion and ripple filters, then pass through the buffering of energy-storage travelling wave tube, energy transient state is stored in energy-storage travelling wave tube, being input in the voltage stabilizing chip of next stage again, voltage stabilizing chip is responsible for producing the normal voltage that charging management chip needs, such as 5V.
The energy-storage travelling wave tube that generally buffering voltage stabilizing is chosen is electric capacity and inductance; consider the frivolous demand of design; for common application demand; the design realizes transient energy storage frequently with patch capacitor and inductance; energy storage for requirements at the higher level needs; the design provides energy lasting accumulation by the mode of built-in paper battery, and rocking of user's any time all can be stored in inside energy-storage travelling wave tube, uses then to rear class charging management chip again.
In technique scheme, described charging management chip, it is preferred to use the charging management chip that lithium battery is special, such that it is able to carry out intelligent charge management according to lithium battery current state.Described charging management chip preferably employs possesses self adaptation i.e. applicable single-unit, multisection lithium battery, three grades of charge modes, detection and automatic switching function, under-voltage, overcharge, short circuit, excess temperature, numerical value regulate, the charging management chip of LED deictic function, model such as TI, Freescale Deng Duojia producer, through laboratory actual test after its performance indications all very excellent, all can as the selection of practical application product development, at this without limitation.
In technique scheme, described magnetic fluid manufacture method preferably includes following steps:
S1) by Fe2+/Fe3+Soluble-salt wiring solution-forming, then according to the molar ratio of 1: 2 or higher is by Fe2+And Fe3+The mixing of two kinds of solution；
S2) by step S1) mixed solution that obtains instills in ammonia spirit, obtains the Fe of about 25nm3O4Nanoparticle.
Above-mentioned manufacture method preferably employs water and ethanol, water and Polyethylene Glycol are reaction medium.
When being embodied as, above-mentioned charging device, all it is embedded in a common-use size outer housing including magnetic fluid airtight cavity, ultra-thin Magnet, wire coil, buffering change-over circuit, charging management chip etc., described outer housing can cut randomly, and is suitable for the mobile phone of various model.And using flexibility, brief charging wire, described charging wire one end is inserted in the charge port of above-mentioned charging device all the time, it is necessary to when charging, the other end of charging wire is linked in mobile phone charge port by user, is then fixed on outer housing when not charging.Adopt this concealed to design so that it is apply more attractive succinctly.
In sum, the present invention realizes the motion energy conversion to electric energy by the introducing of magnetohydrodynamic generator, solve kinetic energy, magnetic energy is converted into the efficiency of electric energy, the electronic equipment that uses outside for people provides emergent and careful passive power supply settling mode, the mode that can be embodied as the safe and reliable charging of battery of mobile phone is rocked by a mobile phone shell and daily use, this will change people's new knowledge to the energy, and also the life style for environmental protection opens new road.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the present invention generating device structure schematic diagram based on one embodiment of universal charging device of magnetic fluid movement power generation；
Fig. 2 is the present invention current rectifying and wave filtering circuit schematic diagram based on one embodiment of universal charging device of magnetic fluid movement power generation；
Fig. 3 is the present invention mu balanced circuit schematic diagram based on one embodiment of universal charging device of magnetic fluid movement power generation；
Fig. 4 is the electrical quantity of Fig. 3 voltage stabilizing chip x7805 adopted；
Fig. 5 is the present invention internal principle schematic of charging management chip based on one embodiment of universal charging device of magnetic fluid movement power generation；
Fig. 6 is the internal circuit schematic diagram of charging management chip in Fig. 5；
Fig. 7 is the technical parameter list of charging management chip in Fig. 5；
Fig. 8 is the pin function list of charging management chip in Fig. 5；
In Fig. 1: 1-cavity；The N pole of the ultra-thin Magnet of 2-；The S pole of the ultra-thin Magnet of 3-；4-wire coil；The positive pole of 5-power supply；The negative pole of 6-power supply.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
The universal charging device based on magnetic fluid movement power generation of the present invention, its structure includes:
TRT, as it is shown in figure 1, it include one can the cavity 1 of airtight magnetic fluid, described cavity 1 tow sides fix the N pole 2 of ultra-thin Magnet and the S pole 3 of ultra-thin Magnet respectively, outside cavity 1 and Magnet, it is wound around some circle wire coils 4, and the two ends of wire coil are fixed by terminal；Thus achieve the positive pole 5 of power supply and the negative pole 6 of power supply；
Buffering change-over circuit, it is connected to outside described TRT, including current rectifying and wave filtering circuit, energy-storage travelling wave tube and voltage stabilizing chip；
Charging management chip, for the Charge Management of lithium battery, it is achieved classification charging, overvoltage protection, overheat protector, short-circuit protection, problem are reported to the police.
The electric energy that described TRT produces, carry out AC/DC conversion through described current rectifying and wave filtering circuit to filter with ripple, then energy transient state being stored in energy-storage travelling wave tube, then be input in the voltage stabilizing chip of next stage, voltage stabilizing chip is responsible for producing the normal voltage that charging management chip needs.
This buffering change-over circuit is for the voltage filter exported by hydromagnetic generating device and stablizes, it is provided that the 5V voltage output of standard, it is to avoid shake ripple voltage and the surge voltage destruction to charging circuit and electromagnetism.
Wherein, magnetic fluid is for having magnetic liquid, its magnetic intensity is relevant with the type of raw materials generating liquid, is directly proportional to the weight being sealed in inside cavity, and magnetic intensity is more high, magnetic fluid quantity is more many, speed of related movement is more fast, can produce more many electric energy.It is a kind of novel functional material, not only there is the mobility of liquid but also there is the magnetic of solid magnetic material, be a kind of stable colloidal liquid that the magnetic retention granule of nanometer scale (less than 10 nanometers), base load liquid and interfacial agent three mix by diameter.This fluid is nonmagnetic captivation when static state, just shows magnetic when externally-applied magnetic field effect, the magnetic fluid excellent performance produced with nano metal and alloy powder, can be applicable to moving generator.
The manufacture method of magnetic fluid has many kinds, and the magnetic fluid of the present invention is prepared by the reverse coprecipitation through improvement, and principle is as follows:
Coprecipitation is usually by Fe2+/Fe3+Soluble-salt wiring solution-forming, then according to the molar ratio of 1: 2 or higher is by Fe2+And Fe3+The mixing of two kinds of solution, with alkali as precipitant, by the Fe in mixed solution2+And Fe3+Out, precipitation is converted into Fe in co-precipitation3O4After, obtain nanoscale Fe through filtering, wash, drying3O4.Main reaction is:
Fe2++2Fe3++8OH-=Fe3O4↓+4H2O
Preparation process is that precipitant is joined Fe2+And Fe3+Mixed solution in, formed strong basicity environment, this is forward coprecipitation, and reaction temperature is typically between 70～90 DEG C, particle be sized to tens nanometers, pattern mostly is spherical.
Otherwise by Fe2+And Fe3+Mixed solution instills in ammonia spirit, and this is reverse coprecipitation, obtains the Fe of about 25nm3O4Nanoparticle.Under similarity condition, the Fe that reverse coprecipitation obtains3O4Nanoparticle is not only smaller than the Fe that forward coprecipitation obtains3O4Nanoparticle, and the former the thermal response temperature in ac magnetic field is higher, has better biologic applications potentiality.
The great advantage of coprecipitation method is that equipment requirements is low, cost is low, simple to operate and the response time is short.Its main deficiency is:
The Fe obtained3O4There is very serious agglomeration between nanoparticle, product cut size distribution is wider.This is due to experience hydroxide colloid process, in addition Fe in preparation3O4The magnetic of nanoparticle and the high surface energy of nanoparticle, cause product particles easily to be reunited.
Preparation must carry out in the basic conditions, and Fe with this understanding2+Very easily it is oxidized to Fe3+, thus the Fe in product2+With Fe3+It is 1: 2 that ratio is difficult to control exactly, causes and more or less there is dephasign in product.
Research shows by experiment, with water and ethanol, water and Polyethylene Glycol for reaction medium, prevents Fe to a certain extent3O4The reunion of nanoparticle, alleviates agglomeration, is conducive to product shaping and processing.
So the magnetic fluid manufacture method that present invention preferably employs comprises the following steps:
S1) by Fe2+/Fe3+Soluble-salt wiring solution-forming, then according to the molar ratio of 1: 2 or higher is by Fe2+And Fe3+The mixing of two kinds of solution；
S2) by step S1) mixed solution that obtains instills in ammonia spirit, obtains the Fe of about 25nm3O4Nanoparticle.
Above-mentioned manufacture method preferably employs water and ethanol, water and Polyethylene Glycol are reaction medium.
As it is shown in figure 1, the cavity of the airtight magnetic fluid of described TRT preferably employs the shape of two ends point, flattened medial.
In technique scheme, described wire coil preferably employs the copper conductor that internal resistance is less, on-state rate is high.The cross-sectional area of copper is more big, and its impedance is more little, more big by electric current, it is possible to provide bigger electric current.
As in figure 2 it is shown, the current rectifying and wave filtering circuit of described buffering change-over circuit adopts efficient rectifier bridge+RC-π filter circuit.
Described voltage stabilizing chip adopts conventional 5V voltage stabilizing chip, and such as LM7805/LM1575T-5.0 etc., as shown in Figure 4, voltage stabilizing chip input voltage ranges for 3～7V to voltage stabilizing chip 7805 electrical quantity, and output area is 4.8～5.2V, and mu balanced circuit is as shown in Figure 3.
When generating electricity, user shakes mobile phone or other are with the equipment of this universal charging device, described TRT is made to produce electric energy by electromagnetic induction, this electric energy first passes around current rectifying and wave filtering circuit and processes, and carries out AC/DC conversion and ripple filters, then pass through the buffering of energy-storage travelling wave tube, energy transient state is stored in energy-storage travelling wave tube, being input in the voltage stabilizing chip of next stage again, voltage stabilizing chip is responsible for producing the normal voltage that charging management chip needs, such as 5V.
The energy-storage travelling wave tube that generally buffering voltage stabilizing is chosen is electric capacity and inductance; consider the frivolous demand of design; for common application demand; present invention preferably employs patch capacitor and inductance realizes transient energy storage; energy storage for requirements at the higher level needs; the present invention provides energy lasting accumulation by the mode of built-in paper battery, and rocking of user's any time all can be stored in inside energy-storage travelling wave tube, uses then to rear class charging management chip again.
In technique scheme, described charging management chip, it is preferred to use the charging management chip that lithium battery is special, such that it is able to carry out intelligent charge management according to lithium battery current state.Its internal principle of the special charging management chip of general lithium battery as it is shown in figure 5, physical circuit as shown in Figure 6, its technical parameter as it is shown in fig. 7, pin function as shown in Figure 8.
Described charging management chip has preferably employed possesses self adaptation i.e. applicable single-unit, multisection lithium battery, three grades of charge modes, detection and automatic switching function, under-voltage, overcharge, short circuit, excess temperature, numerical value regulate, the charging management chip of LED deictic function, model such as TI, Freescale Deng Duojia producer, through laboratory actual test after its performance indications all very excellent, all can as the selection of practical application product development, at this without limitation.
When being embodied as, above-mentioned charging device, all it is embedded in a common-use size outer housing including magnetic fluid airtight cavity, ultra-thin Magnet, wire coil, buffering change-over circuit, charging management chip etc., described outer housing can cut randomly, and is suitable for the mobile phone of various model.And using flexibility, brief charging wire, described charging wire one end is inserted in the charge port of above-mentioned charging device all the time, it is necessary to when charging, the other end of charging wire is linked in mobile phone charge port by user, is then fixed on outer housing when not charging.Adopt this concealed to design so that it is apply more attractive succinctly.
The present invention is based on proposition on the basis made thorough investigation and study, various new technique new trends are fully integrated to charging market, sufficient analysis and checking has been carried out by great many of experiments, solve the cross-species transferability problem of the Reliable Design problem of power charging circuit under the efficiency of magnetohydrodynamic generator, movement power generation pattern, mobile phone shell, the mobile phone making people daily uses to rock and can realize effective generating and charging, and personalized cutting can be carried out according to the feature of oneself mobile phone after buying, simple and practical.
In sum, the present invention realizes the motion energy conversion to electric energy by the introducing of magnetohydrodynamic generator, solve kinetic energy, magnetic energy is converted into the efficiency of electric energy, emergent and careful settling mode is provided for using outside of people, the mode that can be embodied as the safe and reliable charging of battery of mobile phone is rocked by a mobile phone shell and daily use, this will change people's new knowledge to the energy, and also the life style for environmental protection opens new road.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (9)
1. the universal charging device based on magnetic fluid movement power generation, it is characterised in that structure includes:
TRT, it include one can the cavity of airtight magnetic fluid, described cavity tow sides fix N pole and the S pole of ultra-thin Magnet respectively, be wound around some circle wire coils, and fixed by terminal at the two ends of wire coil outside cavity and Magnet；
Buffering change-over circuit, it is connected to outside described TRT, including current rectifying and wave filtering circuit, energy-storage travelling wave tube and voltage stabilizing chip；
Charging management chip, for the Charge Management of lithium battery；
The electric energy that described TRT produces, rectified filter circuit carries out AC/DC conversion and ripple filters, then energy transient state being stored in energy-storage travelling wave tube, then be input in the voltage stabilizing chip of next stage, voltage stabilizing chip is responsible for producing the normal voltage that charging management chip needs.
2. the universal charging device based on magnetic fluid movement power generation according to claim 1, it is characterised in that:
The manufacture method of described magnetic fluid comprises the following steps:
S1) by Fe2+/Fe3+Soluble-salt wiring solution-forming, then according to the molar ratio of 1: 2 or higher is by Fe2+And Fe3+The mixing of two kinds of solution；
S2) by step S1) mixed solution that obtains instills in ammonia spirit, obtains the Fe of about 25nm3O4Nanoparticle.
3. the universal charging device based on magnetic fluid movement power generation according to claim 2, it is characterised in that:
The manufacture method of described magnetic fluid adopts water and ethanol, water and Polyethylene Glycol to be reaction medium.
4. the universal charging device based on magnetic fluid movement power generation according to claim 3, it is characterised in that:
The cavity of the airtight magnetic fluid of described TRT adopts the cavity of two ends point, flattened medial shape.
5. the universal charging device based on magnetic fluid movement power generation according to claim 4, it is characterised in that:
Described wire coil adopts copper conductor.
6. the universal charging device based on magnetic fluid movement power generation according to claim 5, it is characterised in that:
The current rectifying and wave filtering circuit of described buffering change-over circuit adopts efficient rectifier bridge+RC-π filter circuit；
Described voltage stabilizing chip adopts 5V voltage stabilizing chip.
7. the universal charging device based on magnetic fluid movement power generation according to claim 6, it is characterised in that:
Described energy-storage travelling wave tube adopts patch capacitor and inductance to realize transient energy storage.
8. the universal charging device based on magnetic fluid movement power generation according to claim 6, it is characterised in that:
Described energy-storage travelling wave tube is built-in paper battery.
9. the universal charging device based on magnetic fluid movement power generation according to any one of claim 7 or 8, it is characterised in that:
Described charging management chip, adopts the charging management chip that lithium battery is special.
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| CN201410826352.2A CN105790342A (en) | 2014-12-22 | 2014-12-22 | Magnetic fluid motion power generation-based general charging device |
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| CN201410826352.2A CN105790342A (en) | 2014-12-22 | 2014-12-22 | Magnetic fluid motion power generation-based general charging device |
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| CN108306401A (en) * | 2017-12-25 | 2018-07-20 | 沃特威（广州）电子科技有限公司 | A kind of device of vehicle-mounted self power generation |
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Application publication date: 20160720 |