CN203211224U - Electronic license plate - Google Patents
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- CN203211224U CN203211224U CN 201320176388 CN201320176388U CN203211224U CN 203211224 U CN203211224 U CN 203211224U CN 201320176388 CN201320176388 CN 201320176388 CN 201320176388 U CN201320176388 U CN 201320176388U CN 203211224 U CN203211224 U CN 203211224U
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Abstract
The utility model discloses an electronic license plate, and belongs to the technical field of nanometer. The electronic license plate comprises a license plate body, air inlet holes formed in the license plate body, a cavity formed behind the air inlet holes, a self-powered device arranged in the cavity, and a radio frequency module connected with the self-powered device, wherein the self-powered device is used for converting mechanical energy into electric energy, and supplying electricity to the radio frequency module, and the radio frequency module is used for receiving an electromagnetic signal sent by a card reader, and sending information of the license plate to the card reader according to the electromagnetic signal. According to the electronic license plate, a nano friction generator is adopted to collect energy in the process of driving of a vehicle so as to supply the electricity to the radio frequency module, active transmission is achieved under the situation without battery drive, and long-distance and large-range wireless transmission can be accomplished by radio frequency.
Description
Technical field
The utility model relates to field of nanometer technology, relates in particular to a kind of electronic license plate.
Background technology
At present the vehicle management of China all adopts the license plate number management, i.e. a car one number plate, and self-propelled vehicle at first will be registered after buying, and can use after obtaining the legal number plate of vehicle.The car plate of present domestic self-propelled vehicle is still based on the physics car plate, and car plate has just shown the vehicle number of registration.The information of vehicles of including management in comprises: car owner's name, vehicle, car name, Motor Number, source etc., the annual test that in use relates to, pay dues, change, shift, mortgage, cancellation and traffic violation punishment etc. all is object with the car plate.But these information are not recorded on the car plate, and the traffic administration person can not be known the relevant information of vehicle immediately, judge the legitimacy of vehicle, and this has just brought inconvenience to transport administration; Opportunity is provided also for simultaneously some lawless person, fake-licensed car, imitative car, stealthy car plate etc. have occurred.The law enfrocement official also is difficult in time learn the specifying information of vehicle at accident site, and inconvenience is in very first time notice relevant unit and personnel.Especially serious is that a lot of people usurp military car plate and use, and upset the use order of military car plate, infringement PLA's image.In order to address the above problem, electronic license plate arises at the historic moment.
(Radio Frequency Identification, electronic license plate technology RFID) is an application that has practicality and theoretical property and based on radio frequency identification.A smart electronics car plate is made up of common car plate and electronic license plate.Electronic license plate is actually the electronic tag of a wireless identification, has stored the vehicle data through encryption in the electronic license plate, and its data can only be by reading through the RFID card reader of authorizing.
According to the difference of the tag-powered mode of RFID, can be divided into passive, active and half active three kinds of different types.Passive label does not have powered battery, and it is finished by the radio-frequency (RF) energy transfer mechanism by read write line fully in order to carry out data communication and to keep required energy such as data storage, processing.All required during active label work energy are supplied with by internal cell fully, the general radio-frequency information that initiatively outwards sends of label, and therefore power consumption is bigger in the course of the work.Battery is equipped with in semi-active label inside, label optionally uses the radio-frequency (RF) energy of read write line emission or the energy of battery that label inside is powered for data storage, processing and internal signal generation circuit according to the size of the energy that receives, and the interior energy that is used for data communication of label is still provided by the radio-frequency (RF) energy of card reader emission.In the RFID electronic license plate is used, all be to adopt active or half active energisation mode traditionally.Active label adopts initiatively send mode, have great advantage at label reading/writing distance and sensitivity, but power consumption is bigger in the use, needs to carry out battery altering at set intervals.Half active mode has been done certain improvement in energy-saving mode, approaches with passive but shortcoming is the label reading/writing distance, can only be used for the less demanding occasion of reading/writing distance usually, and range of use is restricted.
The utility model content
Utility model purpose of the present utility model is the defective at prior art, proposes a kind of electronic license plate, does not have to carry out under the battery-driven situation active emission in order to be implemented in.
According to an aspect of the present utility model, the utility model provides a kind of electronic license plate, this electronic license plate comprises: the car plate body, be arranged on fresh air inlet on the car plate body, be arranged on this fresh air inlet back cavity, be positioned at the self-power supply device and the radio-frequency module that links to each other with this self-power supply device of this cavity, wherein:
Described self-power supply device is used for mechanical energy is converted to electric energy, and is described radio-frequency module power supply;
Described radio-frequency module is used for receiving the electromagnetic signal that card reader sends, and sends license board information according to this electromagnetic signal to this card reader.
Alternatively, described radio-frequency module is arranged on the front of described car plate body; Perhaps, described radio-frequency module is positioned at described cavity, and described cavity is positioned at the back side of described car plate body, and described car plate body is non-metallic material.
Alternatively, described self-power supply device comprises that nano friction electrical generator and corresponding elasticity thereof knocks parts, this nano friction electrical generator is positioned on the sidewall of described cavity, the end that described elasticity is knocked parts is fixed on the bottom of this cavity, and the other end that described elasticity is knocked parts is corresponding with described fresh air inlet position; Perhaps, described self-power supply device comprises that nano friction electrical generator and an end are fixed on the elastomeric element of the sidewall of described cavity, this nano friction electrical generator vertically is positioned at the bottom of described cavity, one surface of this nano friction electrical generator is corresponding with described fresh air inlet, and another surface of this nano friction electrical generator links to each other with the other end of described elastomeric element.
Alternatively, described elastomeric element is spring.
Alternatively, described self-power supply device also comprises: the rectifying circuit module of Xiang Lianing, filter circuit module, transforming circuit module and tank circuit module successively, wherein:
Described rectifying circuit module links to each other with described nano friction electrical generator, is used for the alternating-current pulse signal of described nano friction electrical generator output is carried out rectification, exports the direct current (DC) of single-phase pulsation;
Described filter circuit module, after the direct current (DC) filtering noise jamming for the single-phase pulsation that described rectifying circuit module is exported, output DC;
Described transforming circuit module is used for the direct current (DC) of described filter circuit module output is carried out transformation, and output is fit to the electric signal that the tank circuit module stores;
Described tank circuit module is used for the electric signal of described transforming circuit module output is stored.
Alternatively, described radio-frequency module comprises: the wireless receiving module of Lian Jieing, master cock module, CPU control module and wireless transmitter module successively, wherein:
Described wireless receiving module is used for receiving the electromagnetic signal of card reader transmission and being forwarded to described master cock module;
Described master cock module links to each other with described self-power supply device, is used for making own conducting according to the described electromagnetic signal that receives, so that described self-power supply device is described CPU control module and the power supply of described wireless transmitter module;
Described CPU control module is used for extracting license board information according to the electromagnetic signal that receives from this locality, sends this license board information and is described wireless transmitter module power supply simultaneously to described wireless transmitter module;
Described wireless transmitter module is used for according to the license board information that receives described CPU control module transmission, and sends license board information to the card reader of correspondence.
Alternatively, described nano friction electrical generator comprises: first electrode that is cascading, the first high molecular polymer insulating barrier, and second electrode; Wherein, described first electrode is arranged on first side surface of the described first high molecular polymer insulating barrier; And second side surface of the described first high molecular polymer insulating barrier is towards the described second electrode setting.
Alternatively, second side surface of the described first high molecular polymer insulating barrier is provided with micro-nano structure.
Alternatively, described nano friction electrical generator also comprises: be arranged on the second high molecular polymer insulating barrier between described second electrode and the described first high molecular polymer insulating barrier, described second electrode is arranged on first side surface of the described second high molecular polymer insulating barrier; And second side surface of second side surface of the described second high molecular polymer insulating barrier and the described first high molecular polymer insulating barrier is oppositely arranged.
Alternatively, at least one face in two faces being oppositely arranged of the described first high molecular polymer insulating barrier and the second high molecular polymer insulating barrier is provided with micro-nano structure.
Alternatively, described nano friction electrical generator also comprises: be arranged on the thin layer between two parties between the described first high molecular polymer insulating barrier and the described second high molecular polymer insulating barrier, wherein, described thin layer between two parties is polymer film layer, and the face of the described relatively thin layer between two parties of the described first high molecular polymer insulating barrier and thin layer between two parties with respect at least one face in the face of the first high molecular polymer insulating barrier and/or at least one face in the face of the face of the relative described thin layer between two parties of the described second high molecular polymer insulating barrier and the relative second high molecular polymer insulating barrier of thin layer between two parties be provided with micro-nano structure.
Alternatively, described nano friction generator comprises: the first electrode that is cascading, the first high molecular polymer insulating barrier, electrode layer between two parties, the second high molecular polymer insulating barrier and the second electrode; Wherein, described the first electrode is arranged on the first side surface of described the first high molecular polymer insulating barrier; Described the second electrode is arranged on the first side surface of described the second high molecular polymer insulating barrier, described electrode layer between two parties is arranged between the second side surface of the second side surface of described the first high molecular polymer insulating barrier and described the second high molecular polymer insulating barrier, and the face of described the first relatively described electrode layer between two parties of high molecular polymer insulating barrier and electrode layer between two parties with respect at least one face in the face of the first high molecular polymer insulating barrier and/or at least one face in the face of the face of described the second relative described electrode layer between two parties of high molecular polymer insulating barrier and relative the second high molecular polymer insulating barrier of electrode layer between two parties be provided with micro-nano structure.
The energy that the utility model adopts the nano friction electrical generator to collect in the vehicle driving process is powered to radio-frequency module, is not having to have realized active emission under the battery-driven situation, thereby makes radio frequency can finish remote and transmission over radio in a big way.
Description of drawings
Fig. 1 a is the electronic license plate scheme drawing of the utility model one embodiment;
Fig. 1 b is the electronic license plate scheme drawing of another embodiment of the utility model;
Fig. 2 a is the electronic license plate schematic cross-section of the utility model one embodiment;
Fig. 2 b is the electronic license plate schematic cross-section of another embodiment of the utility model;
Fig. 3 is the structural representation of the utility model self-power supply device embodiment;
Fig. 4 is the structural representation of the utility model radio-frequency module embodiment;
Fig. 5 a and Fig. 5 b show perspective view and the cross-sectional view of first kind of structure of nano friction electrical generator respectively;
Fig. 6 a and Fig. 6 b show perspective view and the cross-sectional view of second kind of structure of nano friction electrical generator respectively;
Fig. 7 a and Fig. 7 b show perspective view and the cross-sectional view of the third structure of nano friction electrical generator respectively;
Fig. 8 a and Fig. 8 b show perspective view and the cross-sectional view of the 4th kind of structure of nano friction electrical generator respectively.
The specific embodiment
For fully understanding purpose, feature and the effect of the utility model, by following concrete embodiment, the utility model is elaborated, but the utility model is not restricted to this.
The utility model provides a kind of electronic license plate, shown in Fig. 1 a and 1b, this electronic license plate comprises: car plate body 11, be arranged on fresh air inlet 12 on the car plate body 11, be arranged on these fresh air inlet 12 back the cavity (not shown), be positioned at the self-power supply device (not shown) and the radio-frequency module 13 that links to each other with this self-power supply device of this cavity, wherein:
Self-power supply device is used for mechanical energy is converted to electric energy, and is above-mentioned radio-frequency module power supply;
Above-mentioned radio-frequency module 13 is used for receiving the electromagnetic signal that card reader sends, and sends license board information according to this electromagnetic signal to this card reader.
Preferably, above-mentioned radio-frequency module 13 can be arranged on the front of above-mentioned car plate body 11, as shown in Figure 1a; Alternatively, for make the more attractive in appearance and radio-frequency module of car plate fix more stablely, firm, above-mentioned radio-frequency module can fixedly install the cavity that is arranged in car plate body 11 back sides, shown in Fig. 1 b, but, the signal that radio-frequency module emission can appear in this kind method to set up is stopped the problem of shielding by the car plate body 11 of metal material, car plate body 11 can adopt non-metallic materials such as plastics for this reason, for example can adopt acrylonitrile-butadiene-styrene copolymerization (ABS) resin, but the utility model is not limited thereto.
Electronic license plate for structure shown in above-mentioned Fig. 1 a and Fig. 1 b, its self-power supply device comprises that nano friction electrical generator 21 and corresponding elasticity thereof knocks parts 22, shown in Fig. 2 a, this nano friction electrical generator 21 is positioned on the sidewall of cavity 23, the end that elasticity is knocked parts 22 is fixed on the bottom of this cavity 23, and the other end that this elasticity is knocked parts 22 is corresponding with above-mentioned fresh air inlet 12 positions.The electronic license plate of said structure can be fixedly installed on the vehicle, when running car, air-flow blows elasticity by fresh air inlet 12 and knocks parts 22 motions, and then continues to beat the nano friction generator for electricity generation, is radio-frequency module 13 power supplies with electrical power storage to be used for further.
Alternatively, above-mentioned self-power supply device can comprise that nano friction electrical generator 21 and an end are fixed on the elastomeric element 24 of these cavity 23 sidewalls, this nano friction electrical generator 21 vertically is positioned at the bottom of above-mentioned cavity 23, one surface and the above-mentioned fresh air inlet 12 of this nano friction electrical generator 21 are corresponding, another surface of this nano friction electrical generator 21 links to each other with the other end of this elastomeric element 24, in Fig. 2 b, this elastomeric element is spring.The electronic license plate of said structure can be fixedly installed on the vehicle, when running car, air-flow blows 21 motions of nano friction electrical generator by fresh air inlet 12, and spring can make the sustained vibration of nano friction electrical generator, and then the raising generating efficiency, final store electrical energy is the radio-frequency module power supply to be used for.
This self-power supply device adopts air-flow to blow the nano friction generator for electricity generation and store and utilizes, and has realized self-powered function, and having satisfied has the high energy consumption of source radio-frequency module demand, and then has realized remote transmission signal.
Self-power supply device at structure shown in Fig. 2 a and Fig. 2 b, this self-power supply device can also comprise: the rectifying circuit module 31 of Xiang Lianing, filter circuit module 32, transforming circuit module 33 and tank circuit module 34 successively, as shown in Figure 3, wherein: above-mentioned rectifying circuit module 31 links to each other with above-mentioned nano friction electrical generator 21, be used for the alternating-current pulse signal of above-mentioned nano friction electrical generator 21 outputs is carried out rectification, export the direct current (DC) of single-phase pulsation; After the direct current (DC) filtering noise jamming of above-mentioned filter circuit module 32 for the single-phase pulsation that above-mentioned rectifying circuit module 31 is exported, output DC; Above-mentioned transforming circuit module 33 is used for the direct current (DC) of above-mentioned filter circuit module 32 outputs is carried out transformation, and output is fit to the electric signal that tank circuit module 34 stores; Above-mentioned tank circuit module 34 is used for the electric signal of above-mentioned transforming circuit module 33 outputs is stored.Above-mentioned tank circuit module 34 can be selected energy-storage travelling wave tubes such as lithium cell, Ni-MH battery, super capacitor for use.
In addition, above-mentioned radio-frequency module 13 can comprise: the wireless receiving module 41 of Lian Jieing, master cock module 42, CPU control module 43 and wireless transmitter module 44 successively, as shown in Figure 4, wherein: above-mentioned wireless receiving module 41 is used for receiving the electromagnetic signal of card reader transmission and being forwarded to above-mentioned master cock module 42; Above-mentioned master cock module 42 links to each other with above-mentioned self-power supply device, particularly, master cock module 42 is connected with above-mentioned tank circuit module 34, be used for making own conducting according to the above-mentioned electromagnetic signal that receives, so that above-mentioned self-power supply device is above-mentioned CPU control module 43 and 44 power supplies of above-mentioned wireless transmitter module; Above-mentioned CPU control module 43 is used for extracting license board information according to the electromagnetic signal that receives from this locality, and sending this license board information to above-mentioned wireless transmitter module 44 also is these wireless transmitter module 44 power supplies simultaneously; Above-mentioned wireless transmitter module 44 is used for receiving the license board information that CPU control module 43 sends, and sends this license board information to the card reader of correspondence.
Particularly, when above-mentioned electronic license plate is arranged on the automobile, when vehicle drives to the card reader readable region, the wireless receiving module 41 that is arranged in the radio-frequency module 13 on the electronic license plate can receive the electromagnetic signal that card reader sends, this electromagnetic signal can drive master cock module 42 by wireless receiving module 41 and open, self-power supply device is communicated with CPU control module 43, thereby be CPU control module 43 and wireless transmitter module 44 power supplies, and CPU control module 43 can will send to card reader from the information of vehicles that CPU control module 43 receives by control wireless transmitter module 44.
To introduce nano friction generator Structure and principle of work in the above-mentioned electronic license plate below in detail:
First kind of structure of nano friction electrical generator is shown in Fig. 5 a and Fig. 5 b.Fig. 5 a and Fig. 5 b show perspective view and the cross-sectional view of first kind of structure of nano friction electrical generator respectively.This nano friction electrical generator comprises: first electrode, 51, the first high molecular polymer insulating barriers 52 that are cascading, and second electrode 53.Particularly, first electrode 51 is arranged on first side surface of the first high molecular polymer insulating barrier 52; And the surperficial contact friction of second side surface of the first high molecular polymer insulating barrier 52 and second electrode 53 also induces electric charge at second electrode and the first electrode place.Therefore, above-mentioned first electrode 51 and second electrode 53 constitute two output electrodes of nano friction electrical generators.
In order to improve the generating capacity of nano friction electrical generator, further be provided with micro-nano structure 54 at second side surface (being on the face of relative second electrode 53) of the first high molecular polymer insulating barrier 52.Therefore, when the nano friction electrical generator is squeezed, apparent surface's contact friction better of the first high molecular polymer insulating barrier 52 and second electrode 53, and induce more electric charge at first electrode 51 and second electrode, 53 places.Because the second above-mentioned electrode 53 is mainly used in and 52 frictions of the first high molecular polymer insulating barrier, therefore, second electrode 53 also can be referred to as the electrode that rubs.
Above-mentioned micro-nano structure 54 specifically can be taked following two kinds of possible implementations: first kind of mode is that this micro-nano structure is micron order or nano level very little concaveconvex structure.This concaveconvex structure can increase friction drag, improves generating efficiency.Above-mentioned concaveconvex structure can directly form when film preparation, and method that also can enough polishings makes the surface of the first high molecular polymer insulating barrier form the fitfull concaveconvex structure.Particularly, this concaveconvex structure can be the concaveconvex structure of semicircle, striated, cubic type, rectangular pyramid type or shape such as cylindrical.The second way is, this micro-nano structure is the poroid structure of nanoscale, this moment, the first high molecular polymer insulating barrier material therefor was preferably Kynoar (PVDF), and its thickness is the preferred 1.0mm of 0.5-1.2mm(), and the face of its relative second electrode is provided with a plurality of nano-pores.Wherein, the size of each nano-pore, namely width and the degree of depth can be selected according to the needs of using, and preferred nano-pore is of a size of: width is that 10-100nm and the degree of depth are 4-50 μ m.The quantity of nano-pore can as required output current value and magnitude of voltage be adjusted, and preferably these nano-pores are that pitch of holes is the even distribution of 2-30 μ m, and preferred average pitch of holes is the even distribution of 9 μ m.
Following mask body is introduced the principle of work of the nano friction electrical generator shown in Fig. 5 a and Fig. 5 b.When crooked under each course of this nano friction electrical generator, second electrode 53 in the nano friction electrical generator produces static charge with the 52 surperficial phase mutual friction of the first high molecular polymer insulating barrier, the generation of static charge can make the electric capacity between first electrode 51 and second electrode 53 change, thereby causes electric potential difference occurring between first electrode 51 and second electrode 53.When each layer of this nano friction electrical generator returned to original state, the built-in potential that at this moment is formed between first electrode and second electrode disappeared, and will again produce reverse electric potential difference between Balanced first electrode and second electrode this moment.By repeated friction and recovery, just can in external circuit, form periodic ac signal.Be converted to dc signal after this ac signal process rectifying circuit module, filter circuit module and the transforming circuit resume module, this dc signal is exported to the tank circuit module and is stored, thereby has realized self-charging.
According to discovering, metal and high molecular polymer friction, therefore the more volatile de-electromation of metal adopts metal electrode and high molecular polymer friction can improve energy and exports.Therefore, correspondingly, in the nano friction electrical generator shown in Fig. 5 a and Fig. 5 b, second electrode is owing to need to rub as friction electrode (being metal) and first high molecular polymer, therefore its material can be selected from metal or alloy, and wherein metal can be gold, silver, platinum, palladium, aluminium, nickel, copper, titanium, chromium, selenium, iron, manganese, molybdenum, tungsten or vanadium; Alloy can be aluminum alloy, titanium alloy, magnesium alloy, beryllium alloy, copper alloy, zinc alloy, manganese alloy, nickel alloy, lead alloy, tin alloy, cadmium alloy, bismuth alloy, indium alloy, gallium alloy, tungsten alloy, molybdenum alloy, niobium alloy or tantalum alloy.First electrode is not owing to need to rub, therefore, except the material that can select above-mentioned second electrode of enumerating for use, other materials that can make electrode also can be used, that is to say, first electrode is except being selected from metal or alloy, and wherein metal can be gold, silver, platinum, palladium, aluminium, nickel, copper, titanium, chromium, selenium, iron, manganese, molybdenum, tungsten or vanadium; Alloy can be outside aluminum alloy, titanium alloy, magnesium alloy, beryllium alloy, copper alloy, zinc alloy, manganese alloy, nickel alloy, lead alloy, tin alloy, cadmium alloy, bismuth alloy, indium alloy, gallium alloy, tungsten alloy, molybdenum alloy, niobium alloy or the tantalum alloy, can also be selected from non-metallic materials such as indium tin oxide, Graphene, nano silver wire film.
Second kind of structure of nano friction electrical generator is shown in Fig. 6 a and Fig. 6 b.Fig. 6 a and Fig. 6 b show perspective view and the cross-sectional view of second kind of structure of nano friction electrical generator respectively.This nano friction electrical generator comprises: first electrode 61, the first high molecular polymer insulating barriers, 62, the second high molecular polymer insulating barriers 64 and second electrode 63 that is cascading.Particularly, first electrode 61 is arranged on first side surface of the first high molecular polymer insulating barrier 62; Second electrode 63 is arranged on first side surface of the second high molecular polymer insulating barrier 64; Wherein, the second side surface contact friction of second side surface of the first high molecular polymer insulating barrier 62 and the second high molecular polymer insulating barrier 64 and induce electric charge at first electrode 61 and second electrode, 63 places.Wherein, first electrode 61 and second electrode 63 constitute two output electrodes of nano friction electrical generator.
In order to improve the generating capacity of nano friction electrical generator, at least one face in two faces that the first high molecular polymer insulating barrier 62 and the second high molecular polymer insulating barrier 64 are oppositely arranged is provided with micro-nano structure.In Fig. 6 b, the face of the first high molecular polymer insulating barrier 62 is provided with micro-nano structure 65.Therefore, when the nano friction electrical generator is squeezed, apparent surface's contact friction better of the first high molecular polymer insulating barrier 62 and the second high molecular polymer insulating barrier 64, and induce more electric charge at first electrode 61 and second electrode, 63 places.Above-mentioned micro-nano structure can repeat no more with reference to description above herein.
The principle of work of the nano friction electrical generator shown in the principle of work of the nano friction electrical generator shown in Fig. 6 a and Fig. 6 b and Fig. 5 a and Fig. 5 b is similar.Difference only is, when each layer of the nano friction electrical generator shown in Fig. 6 a and Fig. 6 b is crooked, is that the surperficial phase mutual friction by the first high molecular polymer insulating barrier 62 and the second high molecular polymer insulating barrier 64 produces static charge.Therefore, the principle of work about the nano friction electrical generator shown in Fig. 6 a and Fig. 6 b repeats no more herein.
Nano friction electrical generator shown in Fig. 6 a and Fig. 6 b mainly produces electric signal by the friction between poly-mer (the first high molecular polymer insulating barrier) and the poly-mer (the second high molecular polymer insulating barrier).
In this structure, first electrode and the second electrode material therefor can be indium tin oxide, Graphene, nano silver wire film, metal or alloy, and wherein metal can be gold, silver, platinum, palladium, aluminium, nickel, copper, titanium, chromium, selenium, iron, manganese, molybdenum, tungsten or vanadium; Alloy can be aluminum alloy, titanium alloy, magnesium alloy, beryllium alloy, copper alloy, zinc alloy, manganese alloy, nickel alloy, lead alloy, tin alloy, cadmium alloy, bismuth alloy, indium alloy, gallium alloy, tungsten alloy, molybdenum alloy, niobium alloy or tantalum alloy.
In this structure, the material of the first high molecular polymer insulating barrier and the second high molecular polymer insulating barrier can be identical in principle, also can be different.But, if the material of two-layer high molecular polymer insulating barrier is all identical, can cause the quantity of electric charge of triboelectrification very little.Therefore preferably, the first high molecular polymer insulating barrier is different with the material of the second high molecular polymer insulating barrier.
In above-mentioned two kinds of structures, the first high molecular polymer insulating barrier and the second high molecular polymer insulating barrier are selected from Kapton respectively, the aniline formaldehyde resin film, the polyformaldehyde film, ethyl cellulose film, polyamide film, the melamino-formaldehyde film, carbowax succinate film, cellophane, cellulose acetate film, the polyethylene glycol adipate film, the polydiallyl phthalate film, fiber (regeneration) sponge film, the elastic polyurethane body thin film, the styrene-acrylonitrile copolymer copolymer film, the styrene-butadiene-copolymer film, the regenerated fiber film, poly-methyl film, the methyl acrylic acid ester film, polyvinyl alcohol film, polyvinyl alcohol film, mylar, the polyisobutene film, polyurethane flexible sponge film, pet film, polyvinyl butyral film, formaldehyde phenol film, the poly-chloroprene rubber film, the butadiene-propylene copolymer film, the natural rubber film, the polyacrylinitrile film, a kind of in acrylonitrile vinyl chloride film and the polyethylene third diphenol carbonate film.
Except above-mentioned two kinds of structures, the nano friction electrical generator can also adopt the third structure to realize, shown in Fig. 7 a and Fig. 7 b.Fig. 7 a and Fig. 7 b show perspective view and the cross-sectional view of the third structure of nano friction electrical generator respectively.As can be seen from the figure, the third structure has increased a thin layer between two parties on the basis of second kind of structure, that is: the nano friction electrical generator of the third structure comprises first electrode 71 that is cascading, the first high molecular polymer insulating barrier 72, thin layer 70, the second high molecular polymer insulating barrier 74 and second electrode 73 between two parties.Particularly, first electrode 71 is arranged on first side surface of the first high molecular polymer insulating barrier 72; Second electrode 73 is arranged on first side surface of the second high molecular polymer insulating barrier 74, and thin layer 70 is arranged between second side surface of second side surface of the first high molecular polymer insulating barrier 72 and the second high molecular polymer insulating barrier 74 between two parties.Wherein, at least one face in two faces that described thin layer between two parties 70 and the first high molecular polymer insulating barrier 72 are oppositely arranged is provided with micro-nano structure 75, and/or at least one face in two faces being oppositely arranged of described thin layer between two parties 70 and the second high molecular polymer insulating barrier 74 is provided with micro-nano structure 75, concrete set-up mode about micro-nano structure 75 can repeat no more with reference to above describing herein.
The material of the nano friction electrical generator shown in Fig. 7 a and Fig. 7 b can be selected with reference to the material of the nano friction electrical generator of aforesaid second kind of structure.Wherein, thin layer also can be selected from transparent high polymer polyethylene terephthalate (PET), polydimethyl diloxanes (PDMS), polystyrene (PS), polymethyl methacrylate (PMMA), polycarbonate (PC) and the polymeric liquid crystal copolymer (LCP) any one between two parties.Wherein, the material preferably clear poly-mer polyethylene terephthalate (PET) of the described first high molecular polymer insulating barrier and the second high molecular polymer insulating barrier; Wherein, the preferred polydimethyl diloxanes of the material of described thin layer between two parties (PDMS).The first above-mentioned high molecular polymer insulating barrier, the second high molecular polymer insulating barrier, the material of thin layer can be identical between two parties, also can be different.But, if the material of three floor height Molecularly Imprinted Polymer insulating barriers is all identical, can cause the quantity of electric charge of triboelectrification very little, therefore, in order to improve friction effect, the material of thin layer is different from the first high molecular polymer insulating barrier and the second high molecular polymer insulating barrier between two parties, the first high molecular polymer insulating barrier is then preferably identical with the material of the second high molecular polymer insulating barrier, like this, can reduce material category, make making of the present utility model convenient.
In the implementation shown in Fig. 7 a and Fig. 7 b, thin layer 70 is one layer of polymeric films between two parties, therefore similar with the implementation shown in Fig. 6 a and Fig. 6 b in fact, remain and generate electricity by the friction between poly-mer (thin layer between two parties) and the poly-mer (the second high molecular polymer insulating barrier).Wherein, thin layer preparation and stable performance easily between two parties.
In addition, the nano friction electrical generator can also adopt the 4th kind of structure to realize, shown in Fig. 8 a and Fig. 8 b, comprise: first electrode 81 that is cascading, the first high molecular polymer insulating barrier 82, electrode layer 80, the second high molecular polymer insulating barriers 84 and second electrode 83 between two parties; Wherein, first electrode 81 is arranged on first side surface of the first high molecular polymer insulating barrier 82; Second electrode 83 is arranged on first side surface of the second high molecular polymer insulating barrier 84, and electrode layer 80 is arranged between second side surface of second side surface of the first high molecular polymer insulating barrier 82 and the second high molecular polymer insulating barrier 84 between two parties.Wherein, the first high molecular polymer insulating barrier 82 relatively between two parties at least one face in the face of the face of electrode layers 80 and electrode layer 80 relative first high molecular polymer insulating barriers 82 between two parties be provided with the micro-nano structure (not shown); And/or second high molecular polymer insulating barrier 84 relatively between two parties at least one face in the face of the face of electrode layers 80 and electrode layer 80 relative second high molecular polymer insulating barriers 84 between two parties be provided with the micro-nano structure (not shown).In this mode, produce static charge by rubbing between electrode layer 80 and the first high molecular polymer insulating barrier 82 and the second high molecular polymer insulating barrier 84 between two parties, thus will be between two parties produce electric potential difference between electrode layer 80 and first electrode 81 and second electrode 83, at this moment, first electrode 81 and 83 series connection of second electrode are an output electrode of nano friction electrical generator; Electrode layer 80 is another output electrode of nano friction electrical generator between two parties.
In the structure shown in Fig. 8 a and Fig. 8 b, the material of the first high molecular polymer insulating barrier, the second high molecular polymer insulating barrier, first electrode and second electrode can be selected with reference to the material of the nano friction electrical generator of aforesaid second kind of structure.Electrode layer can be selected conducting film, conducting polymer, metallic material between two parties, metallic material comprises simple metal and alloy, simple metal is selected from gold, silver, platinum, palladium, aluminium, nickel, copper, titanium, chromium, selenium, iron, manganese, molybdenum, tungsten, vanadium etc., and alloy can be selected from light alloy (aluminum alloy, titanium alloy, magnesium alloy, beryllium alloy etc.), heavy non-ferrous alloy (copper alloy, zinc alloy, manganese alloy, nickel alloy etc.), fusible alloy (lead, tin, cadmium, bismuth, indium, gallium and alloy thereof), refractory alloy (tungsten alloy, molybdenum alloy, niobium alloy, tantalum alloy etc.).Preferred 100 μ m-500 μ m, more preferably 200 μ m of the thickness of electrode layer 80 between two parties.
Military car plate is more suitable for adopting above-mentioned electronic license plate, and military information of vehicles is stored in the middle of the electronic license plate, makes supervision department can supervise military license board information, prevents that the car owner from using false military car plate to deceive supervision.
The energy that above-mentioned electronic license plate adopts the nano friction electrical generator to collect in the vehicle driving process is powered to radio-frequency module, is not having to have realized active emission under the battery-driven situation; Realize active emission with the nano friction generator powered, make radio frequency can finish remote and transmission over radio in a big way.In addition, adopt the energy that the nano friction electrical generator is collected to be wasted in the vehicle driving process, realized energy-conserving and environment-protective.And electronic license plate of the present utility model adopts the mode of self-starting to carry out radio frequency identification, has only after receiving electromagnetic signal and just can launch automatically, has avoided waste of electric energy preferably, has saved electric energy.
At last; it should be noted that: more than what enumerate only is specific embodiment of the utility model; certainly those skilled in the art can change and modification the utility model; if these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, all should think protection domain of the present utility model.
Claims (12)
1. electronic license plate, it is characterized in that, this electronic license plate comprises: the car plate body, be arranged on fresh air inlet on the car plate body, be arranged on this fresh air inlet back cavity, be positioned at the self-power supply device and the radio-frequency module that links to each other with this self-power supply device of this cavity, wherein:
Described self-power supply device is used for mechanical energy is converted to electric energy, and is described radio-frequency module power supply;
Described radio-frequency module is used for receiving the electromagnetic signal that card reader sends, and sends license board information according to this electromagnetic signal to this card reader.
2. electronic license plate according to claim 1 is characterized in that, described radio-frequency module is arranged on the front of described car plate body; Perhaps, described radio-frequency module is positioned at described cavity, and described cavity is positioned at the back side of described car plate body, and described car plate body is non-metallic material.
3. electronic license plate according to claim 2 is characterized in that:
Described self-power supply device comprises that nano friction electrical generator and corresponding elasticity thereof knocks parts, this nano friction electrical generator is positioned on the sidewall of described cavity, the end that described elasticity is knocked parts is fixed on the bottom of this cavity, and the other end that described elasticity is knocked parts is corresponding with described fresh air inlet position; Perhaps
Described self-power supply device comprises that nano friction electrical generator and an end are fixed on the elastomeric element of the sidewall of described cavity, this nano friction electrical generator vertically is positioned at the bottom of described cavity, one surface of this nano friction electrical generator is corresponding with described fresh air inlet, and another surface of this nano friction electrical generator links to each other with the other end of described elastomeric element.
4. electronic license plate according to claim 3 is characterized in that, described elastomeric element is spring.
5. electronic license plate according to claim 3 is characterized in that, described self-power supply device also comprises: the rectifying circuit module of Xiang Lianing, filter circuit module, transforming circuit module and tank circuit module successively, wherein:
Described rectifying circuit module links to each other with described nano friction electrical generator, is used for the alternating-current pulse signal of described nano friction electrical generator output is carried out rectification, exports the direct current (DC) of single-phase pulsation;
Described filter circuit module, after the direct current (DC) filtering noise jamming for the single-phase pulsation that described rectifying circuit module is exported, output DC;
Described transforming circuit module is used for the direct current (DC) of described filter circuit module output is carried out transformation, and output is fit to the electric signal that the tank circuit module stores;
Described tank circuit module is used for the electric signal of described transforming circuit module output is stored.
6. electronic license plate according to claim 5 is characterized in that, described radio-frequency module comprises: the wireless receiving module of Lian Jieing, master cock module, CPU control module and wireless transmitter module successively, wherein:
Described wireless receiving module is used for receiving the electromagnetic signal of card reader transmission and being forwarded to described master cock module;
Described master cock module links to each other with described self-power supply device, is used for making own conducting according to the described electromagnetic signal that receives, so that described self-power supply device is described CPU control module and the power supply of described wireless transmitter module;
Described CPU control module is used for extracting license board information according to the electromagnetic signal that receives from this locality, sends this license board information and is described wireless transmitter module power supply simultaneously to described wireless transmitter module;
Described wireless transmitter module is used for according to the license board information that receives described CPU control module transmission, and sends license board information to the card reader of correspondence.
7. according to the described electronic license plate of the arbitrary claim of claim 3-6, it is characterized in that described nano friction electrical generator comprises: first electrode that is cascading, the first high molecular polymer insulating barrier, and second electrode; Wherein, described first electrode is arranged on first side surface of the described first high molecular polymer insulating barrier; And second side surface of the described first high molecular polymer insulating barrier is towards the described second electrode setting.
8. electronic license plate according to claim 7 is characterized in that, second side surface of the described first high molecular polymer insulating barrier is provided with micro-nano structure.
9. electronic license plate according to claim 7, it is characterized in that, described nano friction electrical generator also comprises: be arranged on the second high molecular polymer insulating barrier between described second electrode and the described first high molecular polymer insulating barrier, described second electrode is arranged on first side surface of the described second high molecular polymer insulating barrier; And second side surface of second side surface of the described second high molecular polymer insulating barrier and the described first high molecular polymer insulating barrier is oppositely arranged.
10. electronic license plate according to claim 9 is characterized in that, at least one face in two faces that the described first high molecular polymer insulating barrier and the second high molecular polymer insulating barrier are oppositely arranged is provided with micro-nano structure.
11. electronic license plate according to claim 9, it is characterized in that, described nano friction electrical generator also comprises: be arranged on the thin layer between two parties between the described first high molecular polymer insulating barrier and the described second high molecular polymer insulating barrier, wherein, described thin layer between two parties is polymer film layer, and the face of the described relatively thin layer between two parties of the described first high molecular polymer insulating barrier and thin layer between two parties with respect at least one face in the face of the first high molecular polymer insulating barrier and/or at least one face in the face of the face of the relative described thin layer between two parties of the described second high molecular polymer insulating barrier and the relative second high molecular polymer insulating barrier of thin layer between two parties be provided with micro-nano structure.
12. according to claim 3-6 described electronic license plates of any one, it is characterized in that, described nano friction generator comprises: the first electrode that is cascading, the first high molecular polymer insulating barrier, electrode layer between two parties, the second high molecular polymer insulating barrier and the second electrode; Wherein, described the first electrode is arranged on the first side surface of described the first high molecular polymer insulating barrier; Described the second electrode is arranged on the first side surface of described the second high molecular polymer insulating barrier, described electrode layer between two parties is arranged between the second side surface of the second side surface of described the first high molecular polymer insulating barrier and described the second high molecular polymer insulating barrier, and the face of described the first relatively described electrode layer between two parties of high molecular polymer insulating barrier and electrode layer between two parties with respect at least one face in the face of the first high molecular polymer insulating barrier and/or at least one face in the face of the face of described the second relative described electrode layer between two parties of high molecular polymer insulating barrier and relative the second high molecular polymer insulating barrier of electrode layer between two parties be provided with micro-nano structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320176388 CN203211224U (en) | 2013-04-10 | 2013-04-10 | Electronic license plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320176388 CN203211224U (en) | 2013-04-10 | 2013-04-10 | Electronic license plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203211224U true CN203211224U (en) | 2013-09-25 |
Family
ID=49200790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320176388 Expired - Lifetime CN203211224U (en) | 2013-04-10 | 2013-04-10 | Electronic license plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203211224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097584A (en) * | 2013-04-10 | 2014-10-15 | 纳米新能源（唐山）有限责任公司 | Electronic vehicle license plate |
-
2013
- 2013-04-10 CN CN 201320176388 patent/CN203211224U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104097584A (en) * | 2013-04-10 | 2014-10-15 | 纳米新能源（唐山）有限责任公司 | Electronic vehicle license plate |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130925 |
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