CN109304991A - Radio tire pressure monitors system - Google Patents

Radio tire pressure monitors system Download PDF

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Publication number
CN109304991A
CN109304991A CN201710627466.8A CN201710627466A CN109304991A CN 109304991 A CN109304991 A CN 109304991A CN 201710627466 A CN201710627466 A CN 201710627466A CN 109304991 A CN109304991 A CN 109304991A
Authority
CN
China
Prior art keywords
friction
tire
electrode layer
power generator
tire pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710627466.8A
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Chinese (zh)
Inventor
张弛
郭桐
刘国旭
逄尧堃
吴波
王中林
李新建
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Institute of Nanoenergy and Nanosystems
Original Assignee
Beijing Institute of Nanoenergy and Nanosystems
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Institute of Nanoenergy and Nanosystems filed Critical Beijing Institute of Nanoenergy and Nanosystems
Priority to CN201710627466.8A priority Critical patent/CN109304991A/en
Publication of CN109304991A publication Critical patent/CN109304991A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02Signalling devices actuated by tyre pressure
    • B60C23/04Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/041Means for supplying power to the signal- transmitting means on the wheel
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N1/00Electrostatic generators or motors using a solid moving electrostatic charge carrier
    • H02N1/04Friction generators

Abstract

A kind of radio tire pressure monitoring system, comprising: the friction nanometer power generator being set between the inside and outside tire of tire, the mechanical energy for generating deformation in tire traveling process are converted into electric energy;And radio tire pressure monitoring unit, electric energy is provided by friction nanometer power generator, for completing tire pressure monitoring.It is possible thereby to realize the radio tire pressure monitoring from driving, it is ensured that the real-time monitoring of tire pressure, solve the problems, such as that tire pressure monitoring system is limited to battery life and cannot carry out real-time monitoring to tire pressure in the prior art.

Description

Radio tire pressure monitors system
Technical field
The disclosure belongs to triboelectricity technical field, relates more specifically to a kind of wireless tire pressure detection system.
Background technique
Under normal conditions, vehicle needs to be monitored tire pressure in the process of moving, to ensure traffic safety.But it is existing Having the tire pressure test macro in technology is usually to be powered by battery, is thus likely to occur tire pressure test macro and is limited to electricity The pond service life and need the drawbacks of regularly replacing maintenance.
And automobile tire is the important composition component of automobile, for ensureing that the safety traffic of automobile has important work With.It can ceaselessly rotate, compress when tyre rotation, deformation quantity when comparative tire contacts and is not in contact with the ground finds its deformation Rate is very big, therefore the automobile tire in traveling can generate biggish energy, but this energy is largely all ignored With slattern.
Disclosure
Based on problem above, the main purpose of the disclosure is to propose a kind of radio tire pressure monitoring system, for solve with At least one of upper technical problem.
To achieve the goals above, as an aspect of this disclosure, the disclosure proposes a kind of radio tire pressure monitoring system, It include: the friction nanometer power generator being set between the inside and outside tire of tire, the machinery for generating deformation in tire traveling process Electric energy can be converted into;And radio tire pressure monitoring unit, electric energy is provided by friction nanometer power generator, for completing tire pressure monitoring.
In some embodiments of the present disclosure, above-mentioned friction nanometer power generator includes:
Basal layer is the ring structure of the side 2N shape;First electrode layer is close to N number of adjacent edge on the inside of basal layer, as friction First friction electrode of nano generator;Rub electrode layer, is close on the inside of basal layer in addition N number of adjacent edge, as friction nanometer Second friction electrode of generator;And insulating layer, it is close to first electrode layer/friction electrode layer.Wherein, basal layer is in outer masterpiece It deforms under, to change insulating layer and friction electrode layer/first electrode layer contact/discrete state, friction generates charge, And in the separated state, first electrode layer or friction electrode layer pass through induction generation charge;N is the natural number greater than 1.
In some embodiments of the present disclosure, above-mentioned first electrode layer is connected with the first extraction wire;The electrode layer that rubs connects It is connected to the second extraction wire;Friction nanometer power generator is connected to radio tire pressure prison by the first extraction wire and the second extraction wire Survey unit.
In some embodiments of the present disclosure, above-mentioned basal layer is positive the ring structure of the side 2N shape.
In some embodiments of the present disclosure, above-mentioned N is odd number, and one group of opposite side and tire in 2N side of basal layer It is radial vertical;Preferably, N=3.
In some embodiments of the present disclosure, above-mentioned insulating layer is not when basal layer deforms, with friction electrode layer/the There are predetermined gaps between one electrode layer;Insulating layer is when basal layer deforms, with friction electrode layer/first electrode layer in shape It contacts with each other under pressure changeable.
In some embodiments of the present disclosure, above-mentioned insulating layer is opposite with first electrode layer/friction electrode layer contact surface Face have micro-structure, the micro-structure be include nano wire, nanotube, nano particle, nanometer rods, nano flower, nanometer channel, micron The array structure of any combination in groove, nanocone, micron cone, nanosphere and micron chondritic.
In some embodiments of the present disclosure, above-mentioned first electrode layer and friction electrode layer main material include: metal, Any combination of alloy and conductive oxide;The main material of insulating layer includes high molecular polymer;The material of main part of basal layer Including flexible insulating material;Preferably, which has high-durability.
In some embodiments of the present disclosure, above-mentioned radio tire pressure monitoring unit includes: AC/DC converting circuit, and is rubbed Nano generator connection is wiped, the power storage for converting friction nanometer power generator is simultaneously supplied to radio tire pressure sensor Electricity;Radio tire pressure sensor, comprising: the transmitting terminal at cranked tire valve is set, is detected for the tire pressure to tire, and will Testing result emits to receiving end;Receiving end, for receiving testing result and presenting in real time.
In some embodiments of the present disclosure, above-mentioned friction nanometer power generator passes through stickup, suture or stack manner setting Between the inside and outside tire of the tire;And/or the quantity of friction nanometer power generator is multiple, multiple friction nanometer power generator Between connected by conducting wire with parallel way, arrangement of conductors is between the inside and outside tire of tire.
In some embodiments of the present disclosure, above system further include: sealing unit, for conducting wire and friction nanometer hair The edge of motor close to Outer Tyre is sealed.
In some embodiments of the present disclosure, the size and the size phase of the inside and outside tire of tire of above-mentioned friction nanometer power generator Matching.
The radio tire pressure monitoring system that the disclosure proposes has the advantages that
1, friction nanometer power generator is set in the inside of tire, so that in tire traveling process, the friction nanometer generating Machine can will be converted into electric energy due to the mechanical energy that deformation generates on the inside of tire, for radio tire pressure monitoring unit connected to it Power supply, it is possible thereby to realize the radio tire pressure monitoring from driving, it is ensured that the real-time monitoring of tire pressure, solve tire in the prior art The problem of pressure monitoring system is limited to battery life and cannot carry out real-time monitoring to tire pressure;
2, the friction nanometer power generator of the disclosure includes the basal layer of the ring structure of the side 2N shape, and the deformation of basal layer can draw Contact/discrete state change between insulating layer and friction electrode layer/first electrode layer is played, friction generates charge;And it is separating When state, first electrode layer or friction electrode layer are by induction generation charge, therefore the friction nanometer power generator of the disclosure can Mechanical energy caused by deforming efficiently is converted into electric energy, has absolute advantage in terms of collecting the low frequency energy;
3, insulating layer and first electrode layer/friction electrode layer contact surface opposite face have micro-structure, to increase insulation Contact area between layer and friction electrode layer, is conducive to the generation and accumulation of charge, therefore can further improve mechanical energy and turn The transformation efficiency for turning to electric energy improves the generating efficiency of friction nanometer power generator.
Detailed description of the invention
Fig. 1 is the structure chart for the radio tire pressure monitoring system that one embodiment of the disclosure proposes;
Fig. 2 is the structural schematic diagram for the friction nanometer power generator that one embodiment of the disclosure proposes;
Fig. 3 is surface where high polymer insulating layer nanowire structure in friction nanometer power generator shown in Fig. 2 Electron-microscope scanning figure;
Fig. 4 is the position view being mounted on friction nanometer power generator shown in Fig. 2 on tire;
Fig. 5 is the schematic diagram that friction nanometer power generator shown in Fig. 2 generates electricity with tire motion deformation;
Fig. 6 is the circuit diagram for the radio tire pressure monitoring system that one embodiment of the disclosure proposes;
Fig. 7 is the impedance matching curves of friction nanometer power generator shown in Fig. 2;
Fig. 8 is the stability curve of friction nanometer power generator electricity output shown in Fig. 2;
Fig. 9 is that the radio tire pressure that the disclosure proposes monitors the capacitance voltage curves of system in normal work.
Specific embodiment
For the purposes, technical schemes and advantages of the disclosure are more clearly understood, below in conjunction with specific embodiment, and reference Attached drawing is described in further detail the disclosure.
By the utilization to mechanical energy in vehicle traveling process, the service efficiency of vehicle energy can be improved, if by flexible Friction nanometer power generator be fixed on the inside of tire, then when the fixation position of friction nanometer power generator and ground are touched, Deformation occurs for tire, and friction nanometer power generator can generate electric impulse signal.But the different shape of friction nanometer power generator Output after wheel can be embedded in it has a great impact.Therefore, the disclosure is designed to provide a kind of friction nanometer generating The radio tire pressure of machine monitors system, so that friction nanometer power generator is preferably combined with tire, solves tire pressure in the prior art The problem of monitoring system is limited to battery life and cannot carry out real-time monitoring to tire pressure;Friction nanometer power generator is solved simultaneously Different shape can be embedded in the problem of output after wheel has a great impact to it.
Based on above description, the disclosure proposes that the disclosure proposes a kind of radio tire pressure monitoring system, comprising: is set to tire Friction nanometer power generator between inside and outside tire, the mechanical energy for generating deformation in tire traveling process are converted into electric energy;With And radio tire pressure monitoring unit, electric energy is provided by friction nanometer power generator, for completing tire pressure monitoring.
The disclosure is by being arranged friction nanometer power generator, so that in tire traveling process, the friction in the inside of tire Nano generator can will be converted into electric energy due to the mechanical energy that deformation generates on the inside of tire, for radio tire pressure connected to it Monitoring unit power supply, it is possible thereby to realize the radio tire pressure monitoring from driving, it is ensured that the real-time monitoring of tire pressure, solve existing The problem of tire pressure monitoring system is limited to battery life and cannot carry out real-time monitoring to tire pressure in technology.
In some embodiments of the present disclosure, above-mentioned friction nanometer power generator includes:
Basal layer is the ring structure of the side 2N shape;First electrode layer is close to N number of adjacent edge on the inside of basal layer, as friction First friction electrode of nano generator;Rub electrode layer, is close on the inside of basal layer in addition N number of adjacent edge, as friction nanometer Second friction electrode of generator;And insulating layer, it is close to first electrode layer/friction electrode layer.Wherein, basal layer is in outer masterpiece It deforms under, to change insulating layer and friction electrode layer/first electrode layer contact/discrete state, friction generates charge, And in the separated state, first electrode layer or friction electrode layer pass through induction generation charge;N is the natural number greater than 1.
Mechanical energy caused by the friction nanometer power generator of the present embodiment can will deform efficiently is converted into electric energy, is collecting There is absolute advantage in terms of the low frequency energy.
In some embodiments of the present disclosure, above-mentioned first electrode layer is connected with the first extraction wire;The electrode layer that rubs connects It is connected to the second extraction wire;Friction nanometer power generator is connected to radio tire pressure prison by the first extraction wire and the second extraction wire Survey unit.
In some embodiments of the present disclosure, above-mentioned basal layer is positive the ring structure of the side 2N shape.
In some embodiments of the present disclosure, above-mentioned N is odd number, and one group of opposite side and tire in 2N side of basal layer It is radial vertical;Preferably, N=3.
In some embodiments of the present disclosure, above-mentioned insulating layer is not when basal layer deforms, with friction electrode layer/the There are predetermined gaps between one electrode layer;Insulating layer is when basal layer deforms, with friction electrode layer/first electrode layer in shape It contacts with each other under pressure changeable.
In some embodiments of the present disclosure, the opposite of above-mentioned insulating layer and first electrode layer contact surface has micro-structure, The micro-structure be include nano wire, nanotube, nano particle, nanometer rods, nano flower, nanometer channel, micron trenches, nanocone, The array structure of any combination in micron cone, nanosphere and micron chondritic;To increase insulating layer and friction electrode layer it Between contact area, be conducive to the generation and accumulation of charge, thus can further improve mechanical energy be converted into electric energy conversion effect Rate improves the generating efficiency of friction nanometer power generator.For the micro-structure, photoengraving, chemical etching and plasma can be passed through The methods of etching is prepared on the surface of high insulation, can also directly be formed when preparing insulating layer material.
In some embodiments of the present disclosure, above-mentioned first electrode layer and friction electrode layer main material include: metal, Any combination of alloy and conductive oxide;The main material of insulating layer includes high molecular polymer;The material of main part of basal layer Including flexible insulating material;Preferably, which has high-durability.
Specifically, electrode layer and the first electrode layer of rubbing by the metal of electric conductivity and easy receiving and losing electrons, alloy or can be led The oxide material of electricity is formed, and metal for example can be at least one of following: gold, silver, copper, aluminium, platinum, palladium, chromium and nickel etc.;It closes Gold is such as can be at least one of following: aluminium alloy, magnesium alloy, copper alloy, titanium alloy, nickel alloy, tin alloy;Conductive Oxide material for example can be indium tin oxide (ITO).
Insulating layer can lose the insulating materials of electronics for hardly possible, such as polytetrafluoroethylene (PTFE), perfluoroethylene-propylene (FEP, tetrafluoro second The copolymer of alkene and hexafluoropropene), it is dimethyl silicone polymer (PDMS), polyimides, poly- diphenyl propane carbonic ester, poly- to benzene Naphthalate, aniline-formaldehyde resin, polyformaldehyde, ethyl cellulose, polyamide, melamino-formaldehyde, polyethylene glycol fourth Two acid esters, cellulose, cellulose ethanoate, polyethylene glycol adipate, polydiallyl phthalate, regenerated cellulose sea Silk floss, polyurethane elastomer, styrene-acrylonitrile copolymer copolymer, styrene-acrylonitrile copolymer, styrene-butadiene-copolymer, polyamides Amine nylon, polyamide nylon, polymethacrylates, polyvinyl alcohol, polyester, polyisobutene, polyurethane elastomer, polyurethane are soft Property sponge, polyethylene terephthalate, polyvinyl butyral, phenolic resin, neoprene, butadiene copolymerization Object, natural rubber, polyacrylonitrile, poly- (vinylidene chloride-co- acrylonitrile), polyethylene the third diphenol carbonate, polystyrene, poly- first Base methyl acrylate, polycarbonate, polychlorobutadiene, polyacrylonitrile, acetate, poly bis phenol carbonate, polyether, poly- trifluoro The material of vinyl chloride, polyvinylidene chloride, polyethylene, polypropylene, polyvinyl chloride and Parylene etc., insulating layer is not limited to one Kind, it can be one or more of above-mentioned material.
Basal layer can be the good insulating materials of flexible and durability, such as polyimides (PET), polyester polymers (Kpton) etc..
In some embodiments of the present disclosure, above-mentioned radio tire pressure monitoring unit includes: AC/DC converting circuit, and is rubbed Nano generator connection is wiped, the power storage for converting friction nanometer power generator is simultaneously supplied to radio tire pressure sensor Electricity;Radio tire pressure sensor, comprising: the transmitting terminal at cranked tire valve is set, is detected for the tire pressure to tire, and will Testing result emits to receiving end;Receiving end, for receiving testing result and presenting in real time.
Wherein, receiving end may be disposed at the tire even any position of vehicle, pass through wireless signal reality with the transmitting terminal Now communicate.
In some embodiments of the present disclosure, above-mentioned friction nanometer power generator passes through stickup, suture or stack manner setting Between the inside and outside tire of tire;Wherein stack manner is that several friction nanometer power generators are fitly placed in the inner tube of a tyre and outer Between tire, and without the fixed forms such as pasting or suturing, simply by being stacked together full of entire space.Preferably, should Friction nanometer power generator is arranged between the inside and outside tire of tire by bonding method, to provide for radio tire pressure monitoring unit Electric energy when tire pressure monitoring.
In some embodiments of the present disclosure, the size and the size phase of the inside and outside tire of tire of above-mentioned friction nanometer power generator Matching, so that friction nanometer power generator is well fixed between inside and outside tire, increase insulating layer connects with the electrode layer that rubs Contacting surface product improves the transfer efficiency that mechanical energy is converted to electric energy.
In some embodiments of the present disclosure, the quantity of above-mentioned friction nanometer power generator is multiple, multiple friction nanometer It is connected between generator by conducting wire with parallel way, arrangement of conductors is between the inside and outside tire of tire.For example, friction nanometer hair The number of motor can be 3,5,10,15 etc..
In some embodiments of the present disclosure, above-mentioned radio tire pressure monitoring system further includes sealing unit, for conducting wire It is sealed with the edge of friction nanometer power generator close to Outer Tyre.It thus it can be prevented that tire is paddled and normal traveling process In damage to friction nanometer power generator.
In some embodiments of the present disclosure, above-mentioned tire can be vehicle tire, for example, bicycle, motorcycle, Tricycle, truck, car, pick up etc..
Below by way of specific embodiment, the friction nanometer power generator and radio tire pressure monitoring system propose to the disclosure is carried out Detailed description.
Embodiment
It, should if Fig. 1 is the structure chart for the radio tire pressure monitoring system based on friction nanometer power generator that the present embodiment proposes It includes: friction nanometer power generator 10 that radio tire pressure, which monitors system, and the inside of vehicle wheel is arranged in, in vehicular motion In, electric energy is converted by the mechanical energy generated due to the deformation of tire;And radio tire pressure monitoring unit 20, with friction nanometer hair Motor 10 connects, and is powered by friction nanometer power generator 10.
By the way that friction nanometer power generator 10 is arranged in the inside of vehicle tyre, so that rub nanometer in vehicular motion Generator 10 can convert electric energy for the mechanical energy generated due to the deformation of tire, to supervise for radio tire pressure connected to it It surveys unit 20 to power, it is possible thereby to realize the radio tire pressure monitoring system from driving, it is ensured that the real-time monitoring of tire pressure, solve The problem of tire pressure test macro in the prior art is limited to battery life and cannot carry out real-time monitoring to tire pressure.
Wherein, radio tire pressure monitoring unit 20 includes: AC DC convert charging circuit, is connected with friction nanometer power generator 10 It connects;Radio tire pressure sensor includes: the transmitting terminal being arranged at the gas nozzle of the tire, is connected with AC DC convert charging circuit It connects;And the receiving end for real-time display tire pressure.
As shown in Fig. 2, friction nanometer power generator 10 includes the basal layer 11 of regular hexagon ring structure, friction electrode layer 14, high polymer insulating layer 13 and first electrode layer 12, wherein shell of the basal layer 11 as friction nanometer power generator 10 It is secured between the inner tube of a tyre 2 of tire 1 and cover tire 3;Basal layer 11 and friction electrode layer 14 and first electrode layer 12 are fitted in one It rises, first electrode layer 12 is located on the 11 three adjacent sides in inside of basal layer, and it is another that friction electrode layer 14 is located at 11 inside of basal layer On outer three adjacent sides, high polymer insulating layer 13 and first electrode layer 12 fit together;Friction 14 He of electrode layer First electrode layer 12 is respectively as the voltage of hexagon friction nanometer power generator or the output electrode of electric current.It is unchanged on the inside of tire When shape, there are predetermined gaps between high polymer insulating layer 13 and friction electrode layer 14;The tire under pressure Inside deformation when high polymer insulating layer 13 with rub electrode layer 14 contact with each other under deformation pressure.
Wherein, basal layer 11 is the good insulating materials polyimides (PET) of flexible and durability;High molecular polymer is exhausted Edge layer 13 is the insulating materials polytetrafluoroethylene (PTFE) that hardly possible loses electronics, and it has in the opposite face with 12 contact surface of first electrode layer Nanowire structure, electron-microscope scanning figure are as shown in Figure 3;First electrode layer 12 and friction electrode layer 14 are by electric conductivity and the power loss that is easy to get The metal of son, the oxide material of alloy or conduction are formed, wherein first electrode layer 12 is indium tin oxide (ITO), friction electricity Pole layer 14 is aluminium alloy.
Wherein, the shape that above-mentioned high polymer insulating layer 13 and first electrode layer 12 are presented is only exemplary , it is not intended to limit the structure of the present embodiment.
Wherein, as shown in figure 4, friction nanometer power generator 10 is arranged on the inside of the tire of vehicle by bonding method, tool Body installation site can as shown in figure 3, but the present embodiment be not limited to position as shown in Figure 3.Although being to take turns shown in Fig. 4 Multiple friction nanometer power generators are set between the inner tube of a tyre 2 and cover tire 3 of tire 1, but it is only exemplary, are not intended to limit this Embodiment can be set according to actual needs an appropriate number of friction nanometer power generator in actual use.
The schematic diagram to generate electricity such as the friction nanometer power generator that Fig. 5 is the present embodiment with tire motion deformation.Such as D in Fig. 5 It is shown, when tire 1 is undeformed, the hexagonal ring status of basal layer 11, and high polymer insulating layer 13 and friction electrode There are predetermined gaps between layer 14.In this case, the opposite face point of high polymer insulating layer 13 and friction electrode layer 14 Other places are in electroneutral.And it is shown in the direction of arrows from E to C in such as Fig. 5, in 1 traveling process of tire, high score when tire 1 deforms It can gradually contact with each other under the deformation pressure that sub- polymer insulation layer 13 is surveyed in tire with friction electrode layer 14.Polyphosphazene polymer Closing object insulating layer 13 can produce electric energy with friction electrode layer 14 and is exported during contacting with each other and separating, this is because Triboelectrification and electrostatic induction principle.That is, when by 1 external force of tire, friction nanometer power generator 10 is squeezed, macromolecule Polymer insulation layer 13 and friction electrode layer 14 are in contact friction and generate electrostatic charge, and the generation of electrostatic charge can make first electrode layer Capacitor between 12 and friction electrode layer 14 changes, to generate potential difference.Due to the presence of potential difference, free electron will The high side of potential is flowed to by the low side of potential by external circuit, to form electric current in external circuit.And work as nanometer generating When each layer of machine is restored to original state (i.e. state shown in D in Fig. 5), it is at this moment formed in first electrode layer 12 and friction electrode Built-in potential between layer 14 disappears, and will generate again between Balanced first electrode layer 12 and friction electrode layer 14 at this time reversed Potential difference, then free electron forms reverse current by external circuit.By rubbing and restoring repeatedly, so that it may in external circuit Form periodic ac signal.
For the specific connection between friction nanometer power generator 10 and radio tire pressure monitoring unit 20, as shown in Figure 6.It is put Setting the electric energy that the friction nanometer power generator 10 in tire 1 exports is rear end capacitor charging after full-bridge rectification, is charged one section After time, switch S makes radio tire pressure monitor system worked well from 1 to 2.
Fig. 7 is the impedance matching curves for the friction nanometer power generator that the present embodiment proposes;It can be seen from the figure that matching resistance When resisting for 65M Ω, which can achieve peak power output, peak power output 1.9mW.
Fig. 8 is the electricity output stability curve for the friction nanometer power generator that the present embodiment proposes;It can be seen from the figure that In 30 days, which has stable electricity output, and durability is good.
Fig. 9 is the capacitance voltage curves when radio tire pressure that the present embodiment proposes monitors system worked well, can from figure To find out, when rear end capacitor is 1mF, radio tire pressure can be just set to monitor system worked well after the 960s that charges.
In conclusion the present embodiment proposes one kind based on friction nanometer hair for the tire pressure monitoring problem in reality The radio tire pressure of motor monitors system, and friction nanometer power generator therein can maximize, steadily collect tire rotary course In mechanical energy, for radio tire pressure monitor system power supply.The disclosure has versatility, high efficiency and practicability, can be automobile Electronic field and environmental energy assembling sphere provide complete micro- energy solution.
It should also be noted that, the direction term mentioned in embodiment, for example, "upper", "lower", "front", "rear", " left side ", " right side " etc. is only the direction with reference to attached drawing, not is used to limit the protection scope of the disclosure.Through attached drawing, identical element by Same or similar appended drawing reference indicates.When may cause understanding of this disclosure and cause to obscure, conventional structure will be omitted Or construction.
And the shape and size of each component do not reflect actual size and ratio in figure, and only illustrate the embodiment of the present disclosure Content.In addition, in the claims, any reference symbol between parentheses should not be configured to the limit to claim System.
The word of ordinal number such as " first ", " second ", " third " etc. used in specification and claim, with modification Corresponding element, itself is not meant to that the element has any ordinal number, does not also represent the suitable of a certain element and another element Sequence in sequence or manufacturing method, the use of those ordinal numbers are only used to enable an element and another tool with certain name Clear differentiation can be made by having the element of identical name.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of each open aspect, Above in the description of the exemplary embodiment of the disclosure, each feature of the disclosure is grouped together into single implementation sometimes In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect The disclosure of shield requires features more more than feature expressly recited in each claim.More precisely, as following Claims reflect as, open aspect is all features less than single embodiment disclosed above.Therefore, Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim itself All as the separate embodiments of the disclosure.
Particular embodiments described above has carried out further in detail the purpose of the disclosure, technical scheme and beneficial effects Describe in detail bright, it should be understood that the foregoing is merely the specific embodiment of the disclosure, be not limited to the disclosure, it is all Within the spirit and principle of the disclosure, any modification, equivalent substitution, improvement and etc. done should be included in the protection of the disclosure Within the scope of.

Claims (12)

1. a kind of radio tire pressure monitors system, comprising:
The friction nanometer power generator being set between the inside and outside tire of tire, for generate deformation in the tire traveling process Mechanical energy is converted into electric energy;And
Radio tire pressure monitoring unit provides electric energy by the friction nanometer power generator, for completing tire pressure monitoring.
2. system according to claim 1, wherein the friction nanometer power generator includes:
Basal layer is the ring structure of the side 2N shape;
First electrode layer is close to N number of adjacent edge on the inside of the basal layer, the first friction electricity as the friction nanometer power generator Pole;
Rub electrode layer, is close on the inside of the basal layer in addition N number of adjacent edge, second as the friction nanometer power generator rubs Wipe electrode;And
Insulating layer is close to the first electrode layer/friction electrode layer;
Wherein, the basal layer deforms under external force, to change the insulating layer and friction electrode layer/first electrode Contact/discrete state of layer, friction generate charge, and in the separated state, and the first electrode layer or friction electrode layer pass through Induction generates charge;N is the natural number greater than 1.
3. system according to claim 2, in which:
The first electrode layer is connected with the first extraction wire;
The friction electrode layer is connected with the second extraction wire;
The friction nanometer power generator is connected to the radio tire pressure by first extraction wire and the second extraction wire and supervises Survey unit.
4. system according to claim 2, wherein the basal layer is positive the ring structure of the side 2N shape.
5. system according to claim 4, wherein the N is odd number, and one group pair in 2N side of the basal layer Side is radial vertical with the tire;Preferably, the N=3.
6. the system according to any one of claim 2 to 5, in which:
The insulating layer exists pre- when the basal layer does not deform between the friction electrode layer/first electrode layer Fixed gap;
The insulating layer is when the basal layer deforms, with the friction electrode layer/first electrode layer under deformation pressure It contacts with each other.
7. the system according to any one of claim 2 to 6, wherein the insulating layer and the first electrode layer/friction The opposite face of electrode layer contact surface have micro-structure, the micro-structure be include nano wire, nanotube, nano particle, nanometer rods, receive The array junctions of any combination in popped rice, nanometer channel, micron trenches, nanocone, micron cone, nanosphere and micron chondritic Structure.
8. the system according to any one of claim 2 to 7, wherein the master of the first electrode layer and friction electrode layer Body material includes: any combination of metal, alloy and conductive oxide;The main material of the insulating layer includes high molecular polymerization Object;The material of main part of the basal layer includes flexible insulating material;Preferably, which has high-durability.
9. system according to any one of claim 1 to 8, wherein the radio tire pressure monitoring unit includes:
AC/DC converting circuit is connect with the friction nanometer power generator, for converting to obtain the friction nanometer power generator Power storage and to radio tire pressure sensor power;
Radio tire pressure sensor, comprising:
Transmitting terminal at the cranked tire valve is set, is detected for the tire pressure to the tire, and will test result hair It is incident upon receiving end;
Receiving end, for receiving the testing result and presenting in real time.
10. system according to any one of claim 1 to 9, in which:
The friction nanometer power generator is set between the inside and outside tire of the tire by stickup, suture or stack manner;With/ Or
The quantity of the friction nanometer power generator be it is multiple, between multiple friction nanometer power generator by conducting wire with parallel way Connection, the arrangement of conductors is between the inside and outside tire of the tire.
11. system according to claim 10, further includes:
Sealing unit, it is close for being carried out to the conducting wire and the friction nanometer power generator close to the edge of the Outer Tyre Envelope.
12. system according to claim 1, wherein the size of the friction nanometer power generator and the inside and outside tire of the tire Size match.
CN201710627466.8A 2017-07-27 2017-07-27 Radio tire pressure monitors system Pending CN109304991A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111541393A (en) * 2020-04-19 2020-08-14 季华实验室 Flexible friction nano generator and passive tire monitoring system
CN111806166A (en) * 2020-06-24 2020-10-23 浙江大学 Terrain monitoring tire based on triboelectric material
EP3736143A1 (en) * 2019-05-03 2020-11-11 Continental Reifen Deutschland GmbH Tyre with a device comprising an electrode layer and a rubber layer and the use of the tyre and the device in a tyre
CN113002458A (en) * 2021-03-15 2021-06-22 大连民族大学 Friction nanometer generator and battery hybrid power supply wireless tire pressure monitoring system
CN114070122A (en) * 2021-11-16 2022-02-18 浙江师范大学 Tire power generation device based on friction nanometer generator
CN116461257A (en) * 2023-05-12 2023-07-21 广东海洋大学 Tire pressure monitoring device, method and system, wheel and carrier
CN117544916A (en) * 2024-01-08 2024-02-09 万通智控科技股份有限公司 Management method, device and system for sensor related data
CN117544916B (en) * 2024-01-08 2024-04-19 万通智控科技股份有限公司 Management method, device and system for sensor related data

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EP3736143A1 (en) * 2019-05-03 2020-11-11 Continental Reifen Deutschland GmbH Tyre with a device comprising an electrode layer and a rubber layer and the use of the tyre and the device in a tyre
CN111541393A (en) * 2020-04-19 2020-08-14 季华实验室 Flexible friction nano generator and passive tire monitoring system
CN111806166A (en) * 2020-06-24 2020-10-23 浙江大学 Terrain monitoring tire based on triboelectric material
CN111806166B (en) * 2020-06-24 2021-08-31 浙江大学 Terrain monitoring tire based on triboelectric material
WO2021258572A1 (en) * 2020-06-24 2021-12-30 浙江大学 Terrain monitoring tire based on triboelectrification material
CN113002458A (en) * 2021-03-15 2021-06-22 大连民族大学 Friction nanometer generator and battery hybrid power supply wireless tire pressure monitoring system
CN114070122A (en) * 2021-11-16 2022-02-18 浙江师范大学 Tire power generation device based on friction nanometer generator
CN116461257A (en) * 2023-05-12 2023-07-21 广东海洋大学 Tire pressure monitoring device, method and system, wheel and carrier
CN116461257B (en) * 2023-05-12 2024-04-12 广东海洋大学 Tire pressure monitoring device, method and system, wheel and carrier
CN117544916A (en) * 2024-01-08 2024-02-09 万通智控科技股份有限公司 Management method, device and system for sensor related data
CN117544916B (en) * 2024-01-08 2024-04-19 万通智控科技股份有限公司 Management method, device and system for sensor related data

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