CN101719736A - PVDF film energy collector for automobile tyre state monitoring wireless sensor - Google Patents
PVDF film energy collector for automobile tyre state monitoring wireless sensor Download PDFInfo
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- CN101719736A CN101719736A CN200910264889A CN200910264889A CN101719736A CN 101719736 A CN101719736 A CN 101719736A CN 200910264889 A CN200910264889 A CN 200910264889A CN 200910264889 A CN200910264889 A CN 200910264889A CN 101719736 A CN101719736 A CN 101719736A
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- pvdf film
- wireless sensor
- state monitoring
- automobile tyre
- monitoring wireless
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Abstract
The invention publicizes a PVDF (polyvinylidene fluoride) film energy collector for an automobile tyre state monitoring wireless sensor, which is formed by sequentially connecting a PVDF film in series with a charge control circuit, an energy storage circuit and a power supply output circuit, the PVDF film is pasted on the inner lateral surface of an automobile tyre along the radial direction of the tyre or on the inner bottom surface of the tyre along the circumferential direction of the tyre, and the power supply output circuit supplies electricity to the automobile tyre state monitoring wireless sensor. The PVDF film energy collector has simple, compact and reasonable structure, can be used for a long time, and can save energy and protect environment.
Description
Technical field
What the present invention relates to is a kind of PVDF film energy collector that is used for automobile tyre state monitoring wireless sensor, belongs to piezoelectric energy conversion field.
Background technology
The effect of automobile tyre state monitoring system is in vehicle traveling process real-time automatic monitoring to be carried out in tire pressure, temperature, distortion etc., and to have a flat tire and low pressure report to the police, to guarantee traffic safety.Its operation principle is: a built-in sensors is installed on the tire dice of tire, is comprised in the transducer that the bridge type electron gas pressure sensitivity of induction air pressure should be installed, it is converted to the signal of telecommunication with air pressure signal, by wireless launcher signal is emitted.The tire monitor sensor that has also includes measures temperature, strain, the isoparametric function of acceleration, for running car provides more security information.This transducer is transmitted into receiver by wireless mode, shows various data variation or with forms such as buzzings, remind the motorist on display.And having a flat tire and pressure change to surpass emergency exit and reports to the police in limited time, with guarantee driving safety.
The function of tire condition monitoring has: monitor tire pressure in real time; Show current tire pressure and temperature in turn; High-pressure and low-pressure is reported to the police, high temperature alarm; Quick leakage alarm; The cell host low capacity prompt; Display screen is closed automatically during parking; Main frame can enter the parking battery saving mode automatically during powered battery; Can set the corresponding standard force value according to vehicle and tire location.The automotive tyre pressure monitoring system is installed following benefit is arranged: effectively prevent to blow out; The tire damage that effectively avoiding runs flat causes; Effectively avoid oil consumption to increase; Guarantee the best handling of vehicle; Avoid the vehicle part heel and toe wear.
Just because of the tire condition monitoring has a lot of benefits, can reduce traffic accident, guarantee the security of the lives and property, be worth so have vast market.Monitoring is to utilize each to be installed in the air pressure that pressure sensor in the tire is directly measured tire based on the tire condition of pressure sensor.Because it is very inconvenient to be installed in the interior mounting or dismounting of tire, so the life-span of battery has determined the life-span of whole system.In recent years, vibrational energy reclaimed the popular domain that becomes numerous scholar's research.The research of vibrational energy gathering system be how to realize energy-autarchic for the vibrational energy in the equipment utilization surrounding environment of changing the battery inconvenience.
Tire pressure monitoring system can be realized by dual mode at present, a kind of is indirect type: promptly utilize the expanded function of ABS monitoring wheel rotating speed to realize, but this kind mode shortcoming is only to run the preceding paragraph apart from back competence exertion effect at car, especially can not report to the police during vehicle starting, and can't know which tire loses gas.Another kind is a direct-type: promptly directly imbed transducer in doughnut, transducer transmits tire pressure, temperature information is given system host, and system host is shown again.Advantage is a sensitive monitoring, and information is complete.Therefore direct-type will be the development main flow and the trend of following tire pressure monitoring system.The shortcoming of direct-type is that present sensor battery on the market all is integrated design, and in a single day battery does not have electricity, will connect transducer and change together, and later maintenance cost is very high.Therefore the powerup issue that solves the transducer of tire pressure monitoring system becomes one of key technology of restriction tire pressure monitoring system development.
Summary of the invention
The invention reside in provides a kind of PVDF film energy collector that is used for the monitoring automotive tire state wireless senser.Utilize the PVDF thin film sensor that vibrational energy is converted to electric energy and solve issue for battery life.Supply with for the radio tire pressure transducer provides long-term power supply, make it in its life cycle, not need to change battery.
The present invention adopts following technical scheme for achieving the above object:
The present invention is used for the PVDF film energy collector of automobile tyre state monitoring wireless sensor, it is characterized in that: be connected in series charging control circuit, accumulator, power output circuit successively by the PVDF film and constitute, described PVDF film radially is pasted on the doughnut inner side or along tire along tire and circumferentially sticks on the inside tires bottom surface, and described power output circuit is powered to automobile tyre state monitoring wireless sensor.
The described PVDF film energy collector that is used for automobile tyre state monitoring wireless sensor is characterized in that: the PVDF film is individual layer or 3 to 8 layers or bimorph structure.
The PVDF piezoelectric membrane that the present invention adopts is a flexible organic material, and it has higher dielectricity, stronger piezoelectricity and very high mechanical strength, and good flexible, and its Hz-KHz is wide, can anti-chemistry and good characteristic such as oiliness corrosion.The piezoelectricity of PVDF is high more a lot of than quartzy, and can do thinlyyer, and in light weight, volume is little, and is simple in structure, and Pasting has good compatibility on the surface of material with structure.The present invention is simple and compact for structure rationally, can use energy-conserving and environment-protective for a long time.
Description of drawings
Fig. 1 is a structure diagram of the present invention
Fig. 2 radially pastes schematic diagram for PVDF film supply module in the doughnut inner side
Fig. 3 is that PVDF film supply module is circumferentially pasted schematic diagram on doughnut inner bottom surface edge
Fig. 4 is a kind of simple charging control circuit figure
Description of symbols in the accompanying drawing: 1, PVDF film supply module 2, doughnut cross section 3, PVDF film supply module.
Embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to invention:
Accompanying drawings installation process of the present invention: the present invention can install when TSM (tire condition monitoring) system is installed, also can be integrated into installation of the present invention in the manufacture process of tire.No matter be to adopt PVDF film multi-layer structures (generally adopting 3 to 8 layers), bimorph structure or single layer structure, all PVDF film and charging control circuit, accumulator, power output circuit are integrated in the module, see to be exactly the banded structure of the square softness of a block length from profile.PVDF film supply module 1 is sticked on the doughnut inner side, make its length direction radially, as shown in Figure 2 along tire.Also can paste PVDF film supply module 3 along the inside tires bottom surface, its length direction is circumferential along tire, as shown in Figure 3.After installing, this module just can be TSM power supply is provided.
The accompanying drawings concrete course of work of the present invention: automobile in motion, the PVDF film is with the deformation of tire generating period, because piezoelectric effect can produce electric charge on two electrodes of PVDF film.By charging control circuit, accompanying drawing 4 is a kind of simple charging control circuit, plays the filter rectification effect, makes accumulator store the electric energy that PVDF produces, and the power supply output module is exported to tyre pressure sensor after voltage is transformed into certain limit, to its power supply.Like this, as long as automobile is sustainable in motion energy-storage travelling wave tube is charged.And no matter travelling still inactive state, transducer can be worked owing to there is energy-storage travelling wave tube to power to it always.
The present invention is simple in structure, and is easy to use, environmental protection, and the life-span is long.
Claims (2)
1. PVDF film energy collector that is used for automobile tyre state monitoring wireless sensor, it is characterized in that: be connected in series charging control circuit, accumulator, power output circuit successively by the PVDF film and constitute, described PVDF film radially is pasted on the doughnut inner side or along tire along tire and circumferentially sticks on the inside tires bottom surface, and described power output circuit is powered to automobile tyre state monitoring wireless sensor.
2. the PVDF film energy collector that is used for automobile tyre state monitoring wireless sensor according to claim 1 is characterized in that: the PVDF film is individual layer or 3 to 8 layers or bimorph (bimorph) structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910264889A CN101719736A (en) | 2009-12-25 | 2009-12-25 | PVDF film energy collector for automobile tyre state monitoring wireless sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910264889A CN101719736A (en) | 2009-12-25 | 2009-12-25 | PVDF film energy collector for automobile tyre state monitoring wireless sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101719736A true CN101719736A (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910264889A Pending CN101719736A (en) | 2009-12-25 | 2009-12-25 | PVDF film energy collector for automobile tyre state monitoring wireless sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103563236A (en) * | 2011-03-09 | 2014-02-05 | 拜耳知识产权有限责任公司 | Electroactive polymer energy converter |
| FR3029356A1 (en) * | 2014-12-01 | 2016-06-03 | Commissariat Energie Atomique | DEFORMABLE HULL DEVICE COMPRISING A PIEZOELECTRIC INTERNAL CIRCUIT |
| CN113859154A (en) * | 2021-09-18 | 2021-12-31 | 北京航空航天大学 | System and method for generating power and feeding back information based on tire deformation |
-
2009
- 2009-12-25 CN CN200910264889A patent/CN101719736A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103563236A (en) * | 2011-03-09 | 2014-02-05 | 拜耳知识产权有限责任公司 | Electroactive polymer energy converter |
| FR3029356A1 (en) * | 2014-12-01 | 2016-06-03 | Commissariat Energie Atomique | DEFORMABLE HULL DEVICE COMPRISING A PIEZOELECTRIC INTERNAL CIRCUIT |
| EP3029748A1 (en) * | 2014-12-01 | 2016-06-08 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Device with deformable shell comprising a piezoelectric internal circuit |
| US10205083B2 (en) | 2014-12-01 | 2019-02-12 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Device with deformable shell including an internal piezoelectric circuit |
| CN113859154A (en) * | 2021-09-18 | 2021-12-31 | 北京航空航天大学 | System and method for generating power and feeding back information based on tire deformation |
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Open date: 20100602 |