CN103253094B - A kind of confession energy type tire - Google Patents
A kind of confession energy type tire Download PDFInfo
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- CN103253094B CN103253094B CN201310170909.7A CN201310170909A CN103253094B CN 103253094 B CN103253094 B CN 103253094B CN 201310170909 A CN201310170909 A CN 201310170909A CN 103253094 B CN103253094 B CN 103253094B
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Abstract
The present invention relates to motor tire, refer in particular to a kind of confession energy type tire based on piezoeffect, belong to automobile energy-saving technology field.Automobile is in the process of moving because of the change of external condition and driving cycle, and tire internal gas pressure changes, and by tire being separated into two epitrochoidal chambers, utilizes the difference of pressure reduction in chamber, both sides, orders about piezoelectric film-type element distortion and produces electric energy.The electric energy produced can be used for the sensing transmitter in system for monitoring pressure in tyre (TPMS), forms self energizing TPMS, and unnecessary electric energy also can be stored and be used simultaneously.In addition, piezoelectric film-type element, by connecting voltage detection unit, doubles as pressure sensor and speed, the acceleration pick-up of tire pressure monitoring system.
Description
Technical field
The present invention relates to motor tire, refer in particular to a kind of confession energy type tire based on piezoeffect, belong to automobile energy-saving technology field.
Background technology
Tire is the important component part of automobile, and wheel transmits motive power by tire, alleviates the impact in vehicle traveling process, has antihunt action and reduces car impact; Meanwhile, in the process of moving, be subject to the impact of road surface operating mode and the motoring condition of automobile itself, the air pressure in wheel tyre constantly changes automobile, and such as, when automobile driving speed increases, in tire, temperature raises, gas expansion in tire, and tire pressure also increases thereupon; In hot environment, the danger even can blown out; The change of tire internal gas pressure, has a great impact the driving safety of automobile and traveling comfort; Based on the system for monitoring pressure in tyre (TPMS) of sensor technology by carrying out Real-Time Monitoring to tire pressure, with true traffic safety; TPMS is made up of tire pressure monitoring module and cintralized monitoring control module two main portions; Wherein tire pressure monitoring module is arranged in motor tire, and this module, with sensor and wireless launcher, is mainly used to monitor air pressure in tire and temperature and the data monitored are sent to cintralized monitoring control module by feedway; Existing monitoring modular is generally arranged on the groove floor of wheel hub, and due to the difference of hub type or brand, size can be variant, causes the poor universality of monitoring modular; The quality of moment sensor system mostly at about 20g, thus causes larger dynamic load, particularly in the high-velocity section of most critical.
When piezoeffect refers to that some dielectric is subject to the effect of external force and is out of shape in a certain direction, its inside can produce polarization phenomena, occurs positive and negative contrary electric charge on its two apparent surfaces simultaneously; After external force is removed, it can return to uncharged state again; Utilize the principle of pressure of tire change in running process herein, propose a kind of structure reclaiming wheel energy; Patent CN101599527A discloses a kind of piezoelectric film-type element, the electric energy produced when can reclaim deformation of thin membrane, and the change of tire pressure therefore can be utilized to produce electric energy, and recuperated energy is also used; This part electric energy powers to the sensing transmitter in TPMS, forms self energizing TPMS, and unnecessary electrical power storage can be got up; Meanwhile, by detecting the voltage that deformation of thin membrane produces, can be used as pressure sensor and speed, the acceleration pick-up of TPMS.
Summary of the invention
Technical matters to be solved by this invention is: in vehicle travel process, the principle of pressure reduction is produced according to the change of tire internal gas pressure, utilize the direct piezoelectric effect of piezoelectric, the energy that recovery tyre rotation produces also is used, form self energizing system for monitoring pressure in tyre, obtain a kind of confession energy type tire.
The present invention solves proposed technical matters by the following technical programs: in tire, arrange a matrix, tyre cavity is separated into two chambers by this matrix, utilize the change of two chamber pressure in driving conditions, matrix both sides are made to produce pressure reduction, cause matrix generation deformation, the piezoelectric film-type element be attached on matrix is also out of shape generation electric energy thereupon.
Concrete scheme of the present invention is: comprise tire, tire tube valve, wheel rim, piezoelectric film-type element, matrix, exocoel, inner chamber, nut, sensing transmitter and contiguous block.
Matrix is made up of metallic material, is a circular cavity, and the valve hole corresponding to wheel rim has a through hole, and in order to install tire tube valve, matrix can be welded with wheel rim or make integrally, and inner and wheel rim forms the inner chamber closed, and outside and tire forms exocoel.
Tire tube valve comprises valve body, dust cap, valve inside, limited cover, seal ring A and pull back spring; Valve body entirety is tubular, outside, two ends is provided with screw thread, for connecting dust cap and limited cover, there are two grooves valve body inside, separated by the annular boss of valve body inside, one end groove of dust cap and valve body forms A chamber, and the other end groove of limited cover and valve body forms B chamber, and described valve body is arranged with V-type boss A and round boss B in outside; The annular boss internal diameter of the inside of valve body is identical with the external diameter of boss in the middle part of valve inside; One end of V-type boss A is provided with a neck, and for coordinating with contiguous block, boss A top is provided with screw thread, for connecting the sensing transmitter of tire pressure monitoring system, and finely tunes the position of sensing transmitter by the nut outside projector; Axis along V-type boss A and round boss B is respectively equipped with air passage A and air passage B, and air passage A and air passage B are communicated with the annular boss female coaxial of valve body inside respectively, and air passage A is communicated with exocoel, air passage B and inner space; Pull back spring is installed in B chamber, and between valve inside and limited cover.
Limited cover is for limiting moving axially of pull back spring, and inside has groove, is provided with seal ring A for sealing in groove.
Contiguous block is one cylindrical, contiguous block is drilled with through hole vertically, and coordinate with the neck of V-type boss A, contiguous block can slide up and down along the neck of V-type boss A, and sealed by seal ring B, isolated gas between exocoel and inner chamber, the outside of contiguous block circumferentially has a groove, for fixing base; The outside of matrix is pasted with piezoelectric film-type element, and piezoelectric film-type element is out of shape along with the distortion of matrix, produces direct piezoelectric effect, reclaims electric energy; In addition, the upper electrode of piezoelectric film-type element is connected voltage detection unit with between lower electrode, by detecting the voltage that deformation of thin membrane produces, can be used as pressure sensor and speed, the acceleration pick-up of TPMS.
The sensing transmitter of TPMS is by temperature sensor, MCU(micro controller system), emitter and battery form; They are integrated in a protection box, are connected with tire tube valve by screw thread; When being installed on different wheel hub, the position of sensing transmitter can be finely tuned by nut, the therefore highly versatile of this kind of sensing transmitter and tire tube valve package assembly; Owing to decreasing pressure sensor and speed, acceleration pick-up, the quality of sensing transmitter is less, thus the dynamic load caused is less, particularly in the high-velocity section of most critical.
Accompanying drawing explanation
Fig. 1 is piezoelectric self-power supplied formula tire construction schematic diagram;
Fig. 2 is inflating valve structure constructional drawing;
Fig. 3 is valve body structural representation;
Fig. 4 is valve core structure schematic diagram;
In figure: boss 24-limited cover 25-seal ring A26-pull back spring 27-contiguous block 28-seal ring B3-wheel rim 4-piezoelectric film-type element 5-matrix 6-exocoel 7-inner chamber 8-nut 9-sensing transmitter in the middle part of the 22-dust cap 23-valve inside 231-valve inside of 217-B chamber, 1-tire 2-tire tube valve 21-valve body 211-air passage A212-air passage B213-boss A214-boss B215-annular boss 216-A chamber.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Fig. 1 ~ Fig. 3, comprise tire 1, tire tube valve 2, wheel rim 3, piezoelectric film-type element 4, matrix 5, exocoel 6, inner chamber 7 and contiguous block 27.
Matrix 5 is made up of metallic material, is a circular cavity, and the tire tube valve corresponding to wheel rim 3 has a through hole, in order to install tire tube valve 2, matrix 5 can be welded or make one with wheel rim 3, inner and wheel rim 3 forms the inner chamber closed, and outside and tire 1 form exocoel.
Tire tube valve comprises valve body 21, dust cap 22, valve inside 23, limited cover 24, seal ring A25 and pull back spring 26; Valve body 21 entirety is tubular, outside, two ends is provided with screw thread, for connecting dust cap 22 and limited cover 24, there are two grooves valve body 21 inside, separated by the annular boss 215 of valve body 21 inside, dust cap 22 forms A chamber 216 with one end groove of valve body 21, and limited cover 24 forms B chamber 217 with the other end groove of valve body 21, and described valve body 21 is arranged with V-type boss A213 and round boss B214 in outside.Annular boss 215 internal diameter of valve body 21 inside is identical with the external diameter of the middle part boss 231 of valve inside 23.One end of V-type boss A213 is provided with a neck, and for coordinating with contiguous block 27, V-type boss A top is provided with screw thread, for coordinating with sensing transmitter 9 and nut 8.Axis along V-type boss A213 and round boss B214 is respectively equipped with air passage A211 and air passage B212, and air passage A211 is communicated with the female coaxial of annular boss 215 respectively with air passage B212, air passage A211 is communicated with exocoel 6, and air passage B212 is communicated with inner chamber 7; Pull back spring 26 is installed in B chamber 217, and between valve inside 23 and limited cover 24.
Limited cover 24 is for limiting moving axially of pull back spring 26, and inside has groove, is provided with seal ring A25 for sealing in groove.
Contiguous block 27 is one cylindrical, be drilled with through hole vertically, and coordinate with the neck of the convex A213 platform of V-type, contiguous block 27 can slide up and down along the neck of V-type boss A213, and sealed by seal ring B28, isolated gas between exocoel 6 and inner chamber 7, the outside of contiguous block 27 circumferentially has a groove, for fixing base 5; The outside of matrix 5 is pasted with piezoelectric film-type element 4, and piezoelectric film-type element 4 is out of shape along with the distortion of matrix 5, produces direct piezoelectric effect, reclaims electric energy.
Below in conjunction with accompanying drawing, specific implementation process of the present invention is described further.
Confession energy type tire based on piezoeffect proposed by the invention is inflated by tire tube valve 2; During inflation, inflatable appliance overcomes the predetermincd tension of pull back spring 26, unseat the valve core 23, two radial holes on step cutting pattern 215 are opened, make air passage A211, air passage B212 is communicated with inflatable appliance, ensure that the air pressure size in exocoel 6 and inner chamber 7 two chambers is identical, the air pressure size of matrix 5 thin-walled both sides is identical, does not have pressure reduction; After having inflated, remove inflatable appliance, valve inside 23 return under the effect of pull back spring 26, two radial holes on step cutting pattern 215 are closed, exocoel 6 and inner chamber 7 become two closed chambers, dust cap 22 is threaded connection on valve body 21, prevents dust from entering blocking tire tube valve 2.
In driving conditions, be subject to the impact of the external environment condition such as road surface, weather, and the continuous change of vehicle self road speed and load etc., vehicle inner tube pressure constantly changes; Tire 1 directly contacts with ground, makes the change of exocoel 6 internal gas pressure be subject to more directly affecting; Be increased to example with vehicle load and analyze this kind of confession energy type tire working process, when the load increases, in exocoel 6, gas is squeezed, its air pressure inside increases, and then the thin-walled of extruding matrix 5, thin-walled is occured bending and deformation, and also there is deformation in the piezoelectric film-type element 4 be attached on matrix 5 thin-walled, the direct piezoelectric effect of piezoelectric makes it produce electric energy thereupon.
During the distortion of matrix 5 wall buckling, in order to the tire tube valve 2 preventing matrix 5 and tire tube valve 2 from causing because being directly connected rocks, devise a contiguous block 27, contiguous block 27 can slide up and down along the neck of V-type boss A213; The thin-walled of matrix 5 is embedded in the groove of contiguous block 27, and when thin-walled occurs bending and deformation, contiguous block 27 slides up and down along the V-type boss A213 of tire tube valve 2 with the flexural deformation of matrix 5 thin-walled, ensures that tire tube valve 2 can not rock because of the distortion of matrix 5 thin-walled; When other factors cause exocoel 6 internal gas pressure to change, principle of work is described similar to front, the change of exocoel 6 and inner chamber 7 internal gas pressure forms pressure reduction in matrix 5 thin-walled both sides, matrix 5 thin-walled is occured bending and deformation with the piezoelectric film-type element 4 being attached to its surface, produces electric energy.
Piezoelectric film-type element 4 is out of shape the electric energy produced and can be drawn by electrode, the sensing transmitter 9 of supply TPMS; Meanwhile, when pressure is input to piezoelectric element, can produce one with by measuring pressure directly proportional piezoelectric signal, through the amplification process of overvoltage detection unit to signal, can the pressure of checking system and speed, acceleration/accel; Is launched by high frequency radio wave (RF) after the signal madulation that measurement is obtained, and the pressure and temperature data of each tire are presented on screen, for driver's reference, form self energizing tire pressure monitoring system; If the pressure of tire or temperature occur abnormal, central monitor, according to abnormal condition, sends different alarm signals, reminds driver to take necessary measure; The unnecessary electric energy that piezoelectric film-type element 4 distortion produces also can be stored other energy-consuming parts on supply automobile.
Claims (1)
1. confess an energy type tire, comprise tyre and rim, it is characterized in that: be also provided with tire tube valve, piezoelectric film-type element, matrix, nut, sensing transmitter and contiguous block;
Described matrix is a circular cavity, and the valve hole corresponding to wheel rim has a through hole, and in order to install tire tube valve, matrix and wheel rim are welded or make integrally, and inner and wheel rim forms the inner chamber closed, and outside and tire forms exocoel;
Tire tube valve comprises valve body, dust cap, valve inside, limited cover and pull back spring; Valve body entirety is tubular, outside, two ends is provided with screw thread, for connecting dust cap and limited cover, there are two grooves valve body inside, separated by the annular boss of valve body inside, one end groove of dust cap and valve body forms A chamber, and the other end groove of limited cover and valve body forms B chamber, and described valve body is arranged with V-type boss A and round boss B in outside; The annular boss internal diameter of the inside of valve body is identical with the external diameter of boss in the middle part of valve inside; One end of V-type boss A is provided with a neck, and for coordinating with contiguous block, boss A top is provided with screw thread, for connecting the sensing transmitter of tire pressure monitoring system, and is finely tuned the position of sensing transmitter by the nut outside projector; Axis along V-type boss A and round boss B is respectively equipped with air passage A and air passage B, and air passage A and air passage B are communicated with the annular boss female coaxial of valve body inside respectively, and air passage A is communicated with exocoel, air passage B and inner space; Pull back spring is installed in B chamber, and between valve inside and limited cover;
Contiguous block is one cylindrical, and contiguous block is drilled with through hole vertically, and coordinates with the neck of V-type boss A, can slide up and down along the neck of V-type boss A; The outside of contiguous block circumferentially has a groove, for fixing base; The outside of matrix is pasted with piezoelectric film-type element, and piezoelectric film-type element is out of shape along with the distortion of matrix, produces direct piezoelectric effect, reclaims electric energy;
Described limited cover is for limiting moving axially of pull back spring, and inside has groove, is provided with seal ring A for sealing in groove;
The end face of the neck contacts of described contiguous block and V-type boss A has groove, is provided with seal ring B for sealing in groove, isolated gas between exocoel and inner chamber;
Described sensing transmitter is made up of temperature sensor, MCU micro controller system, emitter and battery; They are integrated in a protection box, are connected with tire tube valve by screw thread; When being installed on different wheel hub, by the position of outboard nut fine setting sensing transmitter;
The upper electrode of described piezoelectric film-type element is connected voltage detection unit with between lower electrode, by detecting the voltage that deformation of thin membrane produces, as pressure sensor and speed, the acceleration pick-up of sensing transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170909.7A CN103253094B (en) | 2013-05-10 | 2013-05-10 | A kind of confession energy type tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170909.7A CN103253094B (en) | 2013-05-10 | 2013-05-10 | A kind of confession energy type tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103253094A CN103253094A (en) | 2013-08-21 |
| CN103253094B true CN103253094B (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310170909.7A Expired - Fee Related CN103253094B (en) | 2013-05-10 | 2013-05-10 | A kind of confession energy type tire |
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| Country | Link |
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| CN (1) | CN103253094B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018091839A1 (en) * | 2016-11-21 | 2018-05-24 | Continental Automotive France | Electronic unit of a system for monitoring tyre parameters equipped with a rechargeable electrical supply means |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471927A (en) * | 2016-06-08 | 2017-12-15 | 滴滴（中国）科技有限公司 | A kind of device for monitoring tyre pressure based on piezoelectric ceramics, tire and vehicle |
| WO2020214318A1 (en) * | 2019-04-18 | 2020-10-22 | Bridgestone Americas Tire Operations, Llc | System and method for harvesting energy for an electronic device, and a tire configured for use with the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201061988Y (en) * | 2007-02-12 | 2008-05-21 | 吴仓荣 | Three-way pipe cranked tire valve construction for locating sensing device |
| CN102176647A (en) * | 2011-03-15 | 2011-09-07 | 重庆电子工程职业学院 | Piezoelectric type generator of wheel air valve |
| CN203293820U (en) * | 2013-05-10 | 2013-11-20 | 江苏大学 | Energy self-supplying tire |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090314407A1 (en) * | 2008-06-24 | 2009-12-24 | Gm Global Technology Operations, Inc. | Reducing tire rolling resistance through pre-heating |
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2013
- 2013-05-10 CN CN201310170909.7A patent/CN103253094B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201061988Y (en) * | 2007-02-12 | 2008-05-21 | 吴仓荣 | Three-way pipe cranked tire valve construction for locating sensing device |
| CN102176647A (en) * | 2011-03-15 | 2011-09-07 | 重庆电子工程职业学院 | Piezoelectric type generator of wheel air valve |
| CN203293820U (en) * | 2013-05-10 | 2013-11-20 | 江苏大学 | Energy self-supplying tire |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018091839A1 (en) * | 2016-11-21 | 2018-05-24 | Continental Automotive France | Electronic unit of a system for monitoring tyre parameters equipped with a rechargeable electrical supply means |
| FR3059176A1 (en) * | 2016-11-21 | 2018-05-25 | Continental Automotive France | ELECTRONIC HOUSING OF A PNEUMATIC PARAMETER MONITORING SYSTEM PROVIDED WITH A RECHARGEABLE POWER SUPPLY MEANS |
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| Publication number | Publication date |
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| CN103253094A (en) | 2013-08-21 |
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Granted publication date: 20160406 Termination date: 20170510 |