CN106385199B - A kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply - Google Patents
A kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply Download PDFInfo
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- CN106385199B CN106385199B CN201610891148.8A CN201610891148A CN106385199B CN 106385199 B CN106385199 B CN 106385199B CN 201610891148 A CN201610891148 A CN 201610891148A CN 106385199 B CN106385199 B CN 106385199B
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- Prior art keywords
- monitoring system
- tire pressure
- pressure monitoring
- walking beam
- induced vibration
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 43
- 230000005611 electricity Effects 0.000 title claims abstract description 15
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 238000005192 partition Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 4
- 241001124569 Lycaenidae Species 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 6
- 238000011160 research Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
Abstract
The invention discloses a kind of wind-induced vibration electricity energy harvesters for tire pressure monitoring system power supply, and including the shell for fixing device, shell is fixed on the valve cock of tire by the threaded connection hole of its left bottom；Circuit in accumulator and tire pressure monitoring system is set on the left of shell internal partition；Hold-down support and walking beam are provided on the right side of partition, walking beam surface is provided with piezoelectric membrane, and piezoelectric membrane is circuit power supply in tire pressure monitoring system by accumulator；The front side wall surface and rear side wall surface of shell are each provided with a rectangular through holes, and the horizontal center line and walking beam of two side through hole are located in same level；Being arranged side by side along the length direction of walking beam has vortex-induced vibration of cylinder inducement structure.The configuration of the present invention is simple, easy to use, cost is relatively low, and generated output is higher, occupies little space, safety and environmental protection, substantially prolongs the service life of tire pressure monitoring system.
Description
Technical field
The present invention relates to a kind of wind-induced vibration electricity energy harvesters for tire pressure monitoring system power supply, belong to renewable energy
Source technology field.
Background technique
Wind energy is its sustainability, reproducibility, ubiquitous and pollution-free as a kind of advantage of energy.Wind energy energy
Amount is big, and wide coverage, there are about 2.74 × 10 for Global Wind-energy total amount9MW, wherein can be utilized about 2 × 107MW, about water
It can utilize ten times of total amount.Meanwhile wind energy is a kind of clean energy, it is environment friendly and pollution-free.
Tire pressure monitoring system (TPMS) is carried out in real time to temperature conditions in the carrier tire pressure and tire being under driving status
Detection, and it is insufficient or excessively high to tire pressure situations such as carry out early warning, to guarantee the active safety of the driving safety of carrier
Ensure early warning system.Inside tires compare closing, therefore tire pressure monitoring system is difficult to directly power by wired mode, at present
Tire pressure monitoring system producer generally powered using highly integrated battery, but the volumetric constraint of chemical cell its use the longevity
Life, while there is also tire working temperature, and big disadvantage is influenced on battery, many companies and universities and colleges have all started to tire pressure monitoring
The research of systematic substitution battery.
Existing at present is the tire pressure monitoring system that self-powered is carried out using miniature power generating device, and this research is mostly
It can be carried out the scheme of power generation using the machinery of squeegee action in driving process or vibration, and consider using must in carrier driving process
The wind energy that can be generated, and be converted into the correlative study that the electric energy that can be stored and use is energized almost without.Meanwhile although
There are many research that related wind collecting utilizes, but carry out the fewer of research and utilization for the wind energy in carrier traveling.Wind energy is
The optimal available energy in carrier driving process, about it research at present mostly research concentrate on new-energy automobile
Aspect, few people consider using carrier wind energy come for vehicle-mounted microelectronic component power this point.Therefore, this patent is innovatively
It proposes, by designing rationally effective energy acquisition structure, to convert wind energy into using the wind energy generated in carrier driving process
Electric energy is embodied as the function of this vehicle electronics device of carrier tire pressure monitoring system power supply.
From the point of view of current existing paper and patent, the design principle of miniature Wind energy collecting device is roughly divided into two classes: whirlpool
Wheeled miniature Wind energy collecting device and wind-induced vibration decline type Wind energy collecting device.The hair of the miniature Wind energy collecting device of turbine type
Electric principle is similar to large-scale windmill generating, drives turbine or fan to rotate first with air-flow, recycles piezoelectric effect or electromagnetism
The rotating mechanical energy of turbine is converted into electric energy by the mechanism such as induction.And wind-induced vibration decline type Wind energy collecting device be by air-flow turn
It is melted into the vibration of structural body, general vibrational energy collection method is then recycled to complete conversion of the vibrational energy to electric energy.
The usual mechanism of miniature wind energy collector of turbine type is more complicated, and volume and quality are larger, it is difficult to it is (micro- to carry out MEMS
It is mechanical) production；And have the shortcomings that generated output density is relatively low based on the miniature wind energy collector of wind-induced vibration mechanism, it needs to adopt
Its generating efficiency is improved with new method or new structure.
Miniature Wind energy collecting device based on wind-induced vibration mechanism is not usually required to rotating mechanism, thus structure is simple, easy
Micromation, is a kind of technical solution being easily achieved.Piezoelectric type structure is innovatively applied to wind-induced vibration mechanism by this patent
Miniature wind energy collector in, realize the continued power of carrier tire pressure monitoring system.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of for tire pressure monitoring system
The wind-induced vibration electricity energy harvester of power supply has many advantages, such as that structure is simple, easy to use, cost is relatively low, generated output compared with
Height occupies little space, and safety and environmental protection, substantially increases the service life of tire pressure monitoring system.
The technical problems to be solved by the invention are that using suitable wind-induced vibration structure, by the periodicity on tire
Aerodynamic force is converted to electric energy in maximum efficiency, even if the vibration efficiency of its spring beam maximizes, and then is produced by elastic vibration of beam
Raw electric energy.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply, including the shell for fixing device
Body, the bottom on the left of the shell are provided with threaded connection hole, and shell is connected through a screw thread hole and is fixed on the valve cock of tire；
It is provided with partition in the middle part of the housing cavity, tire pressure monitoring system hold-down support, institute are provided on the left of partition
It states and is provided with circuit in accumulator and tire pressure monitoring system in tire pressure monitoring system hold-down support；It is provided on the right side of partition solid
Determine support and walking beam；
Hold-down support is fixed on partition, and the left end of walking beam is fixed on hold-down support；The right end of walking beam is used as certainly
By holding, extend to outside shell；The walking beam surface is provided with piezoelectric material, and the piezoelectric material passes through accumulator and tire pressure
Circuit is connected in monitoring system；
The front side wall surface and rear side wall surface of the shell are each provided with a rectangular through holes, and two rectangular through holes are just
It is right, and the horizontal center line of two rectangular through holes and walking beam are located in same level.
The present invention is based on tire in the process of moving suffered periodical wind-force the characteristics of, by the external world in carrier driving process
Wind energy transformation is mechanical energy, and is converted into electric energy by the vibration of piezoelectricity girder construction.Be close to surface of tyre air flow field by
To being affected for surface of tyre, but the viscosity of air itself is typically small, and the roughness of surface of tyre is limited, the boundary of object plane
Layer is relatively thin, and after surface of tyre certain altitude, tire motion effect will not have an impact airflow on surface.Wind collecting structure
It should be mounted on surface of tyre height appropriate, to offset the viscous effect on tire surface in rotary course to the horizontal incoming flow of air
Direction and size influence.
Preferably, being arranged side by side along the length direction of walking beam has vortex-induced vibration of cylinder inducement structure, and cylindrical body whirlpool is swashed
Vibration induced structure is located at front side and/or the rear side of walking beam；Fixation is fixed in the left end of vortex-induced vibration of cylinder inducement structure
On support, right end is free end；The center line and walking beam of the vortex-induced vibration of cylinder inducement structure are located at same level
On.
The rectangular through holes of the shell two sides and the presence of vortex-induced vibration of cylinder inducement structure are used to induction whirlpool and swash
Rear air-flow is vibrated and upset, piezoelectricity vibration of beam is promoted, improves the energy acquisition efficiency of periodical wind-force.
Preferably, the walking beam is T-type beam, and the big end part of T-type is free end.The squared ends of the tee girder
For accepting the periodical low frequency pneumatic action directly generated in tire operational process, long narrow girder part is for perceiving circle
Swash effect in the high frequency whirlpool of cylinder induction.Can put everything to its best use pneumatic energy in this way, and generate the energy acquisition of broadband, significantly
Improve energy acquisition efficiency.
Preferably, the piezoelectric material is piezoelectric membrane, and piezoelectric membrane through-thickness polarizes.Piezoelectric membrane is very thin,
Light, soft, flexible can be with non-active operation.
Preferably, the piezoelectric membrane is rectangle, and along the length direction of walking beam, be pasted on the upper of walking beam and/
Or lower surface is at root.
The utility model has the advantages that a kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply provided by the invention,
Compared with the existing technology, it has the advantage that 1, the configuration of the present invention is simple, occupies little space, and cost is relatively low, maintenance or replacement
It is convenient；2, generated output of the present invention is higher, safe and efficient, environment friendly and pollution-free, and substantially prolong tire pressure monitoring system uses the longevity
Life；3, it had both been able to achieve the passive power supply of carrier tire pressure monitoring system, while may be that active tire pressure monitoring system is real-time
Charging has ensured the safety of carrier traveling.
Detailed description of the invention
Fig. 1 is to act on the airflow analysis schematic diagram on tire in the present invention；
Fig. 2 is the structure scheme of installation of the embodiment of the present invention and the structural schematic diagram of partial enlargement；
Fig. 3 is the schematic diagram of internal structure of the embodiment of the present invention；
Fig. 4 is piezoelectric beam structural schematic diagram in the embodiment of the present invention；
Include: 1, tire in figure, 2, wind-induced vibration electricity energy harvester, 2-1, shell, 2-2, threaded connection hole, 2-3, every
Plate, 2-4, tire pressure monitoring system fixed part, 2-5, T-type beam, 2-6, hold-down support, 2-7, piezoelectric membrane, 2-8, through-hole, 2-9, circle
Cylinder vortex-induced vibration inducement structure.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawings and examples.
It is illustrated in figure 2 a kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply, including for solid
Determine the bottom on the left of the shell 2-1, the shell 2-1 of device and be provided with threaded connection hole 2-2, shell 2-1 is connected through a screw thread
Hole 2-2 is fixed on the valve cock of tire 1.
As shown in figure 3, being provided with partition 2-3 in the middle part of the inner cavity the shell 2-1, tire pressure is provided on the left of partition 2-3
Accumulator and tire pressure monitoring system are provided in monitoring system hold-down support 2-4, the tire pressure monitoring system hold-down support 2-4
Interior circuit；Hold-down support 2-6 and T-type beam 2-5 is provided on the right side of partition 2-3；
As shown in figure 4, hold-down support 2-6 is fixed on partition 2-3, the big end part of T-type beam 2-5 is prolonged as free end
It extends to outside shell 2-1, the narrow end part of T-type beam 2-5 is fixed on hold-down support 2-6；The surface T-type beam 2-5 is provided with pressure
Conductive film 2-7, the piezoelectric membrane 2-7 are connected by accumulator with circuit in tire pressure monitoring system；The piezoelectric membrane 2-7
It is rectangle, the polarization of piezoelectric membrane 2-7 through-thickness, and piezoelectric membrane 2-7 is pasted on T along the length direction of T-type beam 2-5
Surface is at root above and/or under type beam 2-5.
As shown in Fig. 2, the front side wall surface and rear side wall surface of the shell 2-1 are each provided with a rectangular through holes 2-8, two
A rectangular through holes 2-8 face, and the horizontal center line of two rectangular through holes 2-8 and walking beam are located in same level.
In the present embodiment, the cylindrical body whirlpool exciting having along the length direction of T-type beam 2-5 is arranged side by side in the rear side of T-type beam 2-5
Dynamic inducement structure 2-9, the left end of vortex-induced vibration of cylinder inducement structure 2-9 are fixed on hold-down support 2-6, and right end is freely
End；The center line and T-type beam 2-5 of the vortex-induced vibration of cylinder inducement structure 2-9 is located in same level.
Length, quantity, the shape of vortex-induced vibration of cylinder inducement structure 2-9 and piezoelectric membrane 2-7 in the present invention, and
The configuration of hold-down support 2-6 can carry out flexible choice and rational design according to actual needs.
A specific embodiment of the invention is as follows:
Installing with carrier wind speed suffered by the wind-induced vibration acquisition device 2 on 1 surface of tire is being superimposed for two movements: first is that
Under local coordinate system, each point surrounds the movement of tire centerline axis on tire 1；Second is that under global coordinate system, before 1 central axis of tire
Into.It can be obtained by this way, during tire 1 rotates a circle under fixed rotating speed, air velocity, tire height and movement
The relationship in direction, as shown in Figure 1.Analysis obtains, when carrier remains a constant speed and advances, is installed on the wind-induced vibration on 1 surface of tire
Acquisition device 2 will receive periodical wind speed effect, since wind-force and wind speed are positively correlated, wind suffered by wind-induced vibration acquisition device 2
Power also has periodicity.
During carrier is travelled with fixed speed, wind-force suffered by wind-induced vibration acquisition device 2 has periodically, air-flow
It can be entered in shell 2-1 by front and rear sides through-hole 2-8, and pass through vortex-induced vibration of cylinder inducement structure 2-9, to induce whirlpool
Excited vibration simultaneously upsets rear air-flow, promotes the periodic vibration of T-type piezoelectric beam 2-5.At the same time, the squared ends of tee girder will
Directly accept the periodical low frequency pneumatic action generated in tire operational process.Thus, it will be mentioned significantly using this tee girder mode
High-energy collecting efficiency.Energy after acquisition is powered by accumulator for circuit in tire pressure monitoring system, and carrier is both able to achieve
The passive of tire pressure monitoring system is powered, while may be the pressure monitoring system real time charging of active tire.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply, which is characterized in that including for fixing
The shell (2-1) of whole device, the bottom on the left of the shell (2-1) are provided with threaded connection hole (2-2), and shell (2-1) is logical
Threaded connection hole (2-2) is crossed to be fixed on the valve cock of tire (1)；
It is provided with partition (2-3) in the middle part of shell (2-1) inner cavity, is provided with tire pressure monitoring system on the left of partition (2-3)
Hold-down support (2-4), the tire pressure monitoring system hold-down support (2-4) is interior to be provided with electricity in accumulator and tire pressure monitoring system
Road；Hold-down support (2-6) and walking beam are provided on the right side of partition (2-3)；
Hold-down support (2-6) is fixed on partition (2-3), and the left end of walking beam is fixed on hold-down support (2-6)；Walking beam
Right end extends to shell (2-1) outside as free end；The walking beam surface is provided with piezoelectric material, and the piezoelectric material is logical
Accumulator is crossed to be connected with circuit in tire pressure monitoring system；
The front side wall surface and rear side wall surface of the shell (2-1) are each provided with a rectangular through holes (2-8), and two rectangles are logical
Hole (2-8) face, and the horizontal center line of two rectangular through holes (2-8) and walking beam are located in same level.
2. a kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply according to claim 1, special
Sign is that the vortex-induced vibration of cylinder induction for having the length direction along walking beam is arranged side by side in the front side of walking beam and/or rear side
Structure (2-9)；The left end of vortex-induced vibration of cylinder inducement structure (2-9) is fixed on hold-down support (2-6), and right end is freely
End；The center line and walking beam of the vortex-induced vibration of cylinder inducement structure (2-9) are located in same level.
3. a kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply according to claim 1, special
Sign is that the walking beam is T-type beam (2-5), and the big end part of T-type is free end.
4. a kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply according to claim 1, special
Sign is that the piezoelectric material is piezoelectric membrane (2-7), and piezoelectric membrane (2-7) through-thickness polarizes.
5. a kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply according to claim 4, special
Sign is that the piezoelectric membrane (2-7) is rectangle, and along the length direction of walking beam, is pasted on above and/or under walking beam
Surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610891148.8A CN106385199B (en) | 2016-10-12 | 2016-10-12 | A kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610891148.8A CN106385199B (en) | 2016-10-12 | 2016-10-12 | A kind of wind-induced vibration electricity energy harvester for tire pressure monitoring system power supply |
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| CN106385199A CN106385199A (en) | 2017-02-08 |
| CN106385199B true CN106385199B (en) | 2019-01-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107688100B (en) * | 2017-09-22 | 2019-04-05 | 上海交通大学 | A kind of pipeline stream flow monitoring self-powered sensor based on vortex-induced vibration |
| CN115206116B (en) * | 2022-07-19 | 2023-08-08 | 深圳技术大学 | Traffic projection lamp system based on multiple clean energy sources |
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| US8154177B1 (en) * | 2007-01-29 | 2012-04-10 | Microstrain, Inc. | Wide-band vibration energy harvester with stop |
| CN102983780A (en) * | 2012-11-12 | 2013-03-20 | 西安交通大学 | Tire vibration energy collecting device |
| CN103762894A (en) * | 2014-02-17 | 2014-04-30 | 重庆大学 | Device for collecting electric energy through parallel double-cylinder flow-induced vibration |
| JP2014121168A (en) * | 2012-12-17 | 2014-06-30 | Ngk Spark Plug Co Ltd | Power generator and monitoring device |
| CN104113232A (en) * | 2014-07-11 | 2014-10-22 | 西安电子科技大学 | Wind-induced vibration piezoelectric generator |
| CN105443317A (en) * | 2010-08-02 | 2016-03-30 | 德泰科诺有限公司 | Vortex resonance wind turbine |
| CN105680720A (en) * | 2016-02-01 | 2016-06-15 | 南京航空航天大学 | Multi-degree-of-freedom piezoelectric-electromagnetic composite multi-directional broadband kinetic energy collector |
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2016
- 2016-10-12 CN CN201610891148.8A patent/CN106385199B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8154177B1 (en) * | 2007-01-29 | 2012-04-10 | Microstrain, Inc. | Wide-band vibration energy harvester with stop |
| CN101908836A (en) * | 2010-07-22 | 2010-12-08 | 重庆大学 | Miniature vibration type wind generator with mass block |
| CN105443317A (en) * | 2010-08-02 | 2016-03-30 | 德泰科诺有限公司 | Vortex resonance wind turbine |
| CN102983780A (en) * | 2012-11-12 | 2013-03-20 | 西安交通大学 | Tire vibration energy collecting device |
| JP2014121168A (en) * | 2012-12-17 | 2014-06-30 | Ngk Spark Plug Co Ltd | Power generator and monitoring device |
| CN103762894A (en) * | 2014-02-17 | 2014-04-30 | 重庆大学 | Device for collecting electric energy through parallel double-cylinder flow-induced vibration |
| CN104113232A (en) * | 2014-07-11 | 2014-10-22 | 西安电子科技大学 | Wind-induced vibration piezoelectric generator |
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