Tyre pressure sensor and wheel balancing systems with wheel balance effectTechnical field
The present invention relates to the tire pressure of wheel to sense association area, espespecially a kind of tyre pressure sensor with wheel balance effectAnd wheel balancing systems.
Background technology
Tyre pressure sensing system is that one kind is installed in wheel, to sense the whether enough electronic systems of the air pressure of tire, thisSystem can sense in real time, and with instrument, numerical monitor or allow driver to learn the change of tire pressure with cresset or sound merely,To reduce the traffic accident caused by tire pressure is too high or insufficient.
Tyre pressure sensing system can be divided mainly into indirect type and direct-type according to function mode.Wherein, indirect type tire pressure sensing systemSystem, is not the tire pressure of direct sensing tire, but senses the rotating speed of wheel, if system sense a certain wheel rotating speed and otherThe speed discrepancy of wheel may then have abnormal tyre pressure and can remind driver, still, indirect type tyre pressure sensing system can not away from excessiveIt is supplied to the actual tire pressure numerical value of driver.
In addition, direct-type tyre pressure sensing system, it has the sensor of signal emission function, using the teaching of the invention it is possible to provide driver's wheelActual tire pressure numerical value, wherein, be divided to according to mounting means has outside tire that two kinds of formula, the sensor of the outer formula of tire are mounted in wheel in formula and tireValve, voluntarily can simply it be installed by car owner, but because sensor has weight in itself, being locked on valve can cause wheel mass unevenIt is distributed, and influences wheel balance, and sensor need to be taken during aeration apart, has the risk for breaking sensor.
When vehicle is advanced, the structure of the outer formula sensor of rubber type valve combination tire has a whipping phenomenon, wheel it is long-termOperation can cause the rubber bodies of rubber valve risk of breakage to be present.In addition, the sensor of formula is mounted in the wheel rim of wheel in tire, it is necessary to take tire installation apart, therefore be typically only capable to be installed by Motor Maintenance factory, installation rear tyre need to be done again for the insideBalance, it is cumbersome.
Therefore, the applicant is directed to providing a kind of tyre pressure sensor with wheel balance effect and wheel balance systemSystem.
The content of the invention
It is an object of the invention to provide a kind of tyre pressure sensor and wheel balancing systems with wheel balance effect, it canWith leveling wheel quality, wheel vibrations are reduced, having can leveling wheel and the effect of have tire pressure sensing concurrently simultaneously.
Technical scheme provided by the invention is as follows：
A kind of tyre pressure sensor with wheel balance effect, it is used for a wheel, and the wheel has a wheel rim and setLocated at a tire of the wheel rim, an air pressure space is formed between the tire and the wheel rim, the wheel rim is communicated with instituteA valve in air pressure space is stated, the tyre pressure sensor includes：One body, it is movably arranged in the air pressure space, describedThere is an accommodation space in vivo；And a sensing module, it is located at the accommodation space, and the sensing module has what is be mutually coupledOne sensing unit, a CPU, a wireless transmission unit and one provide the power unit of electric power, and the sensing unit is usedTo sense the gas pressure in the air pressure space and produce a pressure signal, the CPU receives the pressure letterNumber, and wirelessly outwards transmitted the pressure signal by the wireless transmission unit.
Preferably, the body rolls and is arranged at the air pressure space.
Preferably, the body has an outer rim, the tangential direction when outer rim is advanced with the wheel and the wheelFetus in fetus face is in rolling contact.
Preferably, the body is in spheroid, ellipsoid or polyhedron.
Preferably, the quantity of the body is multiple.
Preferably, the sensing module also has a circuit substrate, the sensing unit, the CPU, instituteWireless transmission unit and the power unit are stated in the circuit substrate.
Preferably, the circuit substrate is fastened in the accommodation space.
Preferably, the body is provided with a through hole, and the through hole connects the accommodation space and the air pressure space, usesIn the gas pressure for making the sensing unit sense the air pressure space.
Preferably, the sensing module is fixedly arranged on the accommodation space by a filling member.
Preferably, the body is provided with a channel, air pressure space described in the channel-connectivity and with the sensing unitLink.
A kind of wheel balancing systems, including：Multiple balanced bodies and the above-mentioned tyre pressure sensor with wheel balance effect are moreThe individual balanced body is movably arranged at the air pressure space simultaneously with the tyre pressure sensor.
Preferably, the shape of each balanced body is identical with the shape of the body of the tyre pressure sensor.
It is provided by the invention it is a kind of with wheel balance effect tyre pressure sensor and wheel balancing systems can bring withLower at least one beneficial effect：
1st, the tyre pressure sensor with wheel balance effect of the invention, by the way that the body with sensing module is positioned overAir pressure space, in movable in tire when body can advance with wheel, to sense the gas pressure in air pressure space, therefore, noTyre pressure sensor need to be additionally fixed on wheel, causes the uneven problem of wheel mass, it is not required that installing tire pressure senseThe balance correction of the laggard driving wheel of device is surveyed, so as to reduce installation steps, installation procedure is simplified, so as to realize tyre pressure sensorFast Installation.
2nd, the body of tyre pressure sensor of the invention can be movable in tire when wheel is advanced, so as to dynamic equilibriumMode offsets wheel and the uneven vibrations caused by vehicle wheel component, so as to leveling wheel quality and reduces wheel vibrations, keeps awayHaving exempted from tyre pressure sensor influences wheel mass, causes wheel imbalance and vibration problems, tire pressure is had concurrently while leveling wheelThe effect of sensing.
3rd, tyre pressure sensor of the invention only needs the air pressure space being positioned between tire and wheel rim, without cooperation wheel gaugeOr valve position, it just can reach wheel balance and sensing tire pressure effect, it is therefore, wide suitable for any wheel, use rangeIt is general.
4th, wheel balancing systems of the invention can be greatly decreased wheel and rock problem, increase the counterbalance effect of wheel, carryRise traffic safety.
Brief description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, above-mentioned characteristic, skill to the present inventionArt feature, advantage and its implementation are further described.
Fig. 1 is a kind of structural representation of specific embodiment of the tyre pressure sensor with wheel balance effect of the present inventionFigure；
Fig. 2 is a kind of sectional view of specific embodiment of the tyre pressure sensor with wheel balance effect of the present invention；
Fig. 3 is the sectional view of another specific embodiment of the tyre pressure sensor with wheel balance effect of the present invention；
Fig. 4 is a kind of application signal of specific embodiment of the tyre pressure sensor with wheel balance effect of the present inventionFigure；
Fig. 5 be the present invention have wheel balance effect tyre pressure sensor in body rolled in the air pressure space of wheelSectional view；
Fig. 6 is a specific embodiment schematic diagram of the wheel balancing systems of the present invention；
Fig. 7 is the sectional view of wheel balancing systems under operation shown in Fig. 6.
Drawing reference numeral explanation：
Wheel 1, wheel rim 2, tire 3, outer surface 4, outer peripheral edge 5, tread 6, inner tread 7, air pressure space 8, valve 9, tirePress sensor 100, body 10, accommodation space 11, outer rim 12, through hole 13, channel 14, sensing module 20, sensing unit 21, circuitSubstrate 22, CPU 23, wireless transmission unit 24, power unit 25, filling member 30, balanced body 40.
Embodiment
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, control is illustrated belowThe embodiment of the present invention.It should be evident that drawings in the following description are only some embodiments of the present invention, forFor those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawingsAccompanying drawing, and obtain other embodiments.To make simplified form, only schematically show and phase of the present invention in each figureThe part of pass, they do not represent its practical structures as product.
It should be noted that singulative used herein【One】、【One】And【It is described】Also plural form is included, unless onHereafter explicitly indicate that other situations.Furthermore it will be appreciated that when used in this specification, term【Including】And/or【Including】SpecifyThe feature, body, module and/or unit be present, but do not preclude the presence or addition of one or more other features, body, mouldsBlock and/or unit.Note that, which ought mention component, is located at another component【On】Or【It is upper】, or component and another component【ChainConnect】、【Coupling】Or【Connection】When, it can be directly arranged in, couples, links or be connected to another component or there are middle groupsPart.
Refer to shown in Fig. 1 to Fig. 5, the present invention provides a kind of tyre pressure sensor 100 with wheel balance effect, the tireSensor 100 is pressed to be used for a wheel 1 of vehicle, vehicle can be locomotive or automobile, and in this specific embodiment, vehicle is vapourCar.Wheel 1 has a wheel rim 2 and is sheathed on a tire 3 of wheel rim 2, and wheel rim 2 has an outer surface 4 and an outer peripheral edge 5, appearanceFace 4 is set towards one end of the pivot center of wheel 1, outer peripheral edge 5 around the pivot center of wheel 1, and tire 3 has a tread 6And an inner tread 7, wherein, the inner tread 7 of tire 3 is sheathed on wheel rim 2 towards the outer peripheral edge 5 of wheel rim 2, the inner tread 7 of tire 3An air pressure space 8 is formed between the outer peripheral edge 5 of wheel rim 2, and during vehicle traveling, the tread 6 of tire 3 contacts with ground；FurthermoreThe outer surface 4 of wheel rim 2 is provided with a valve 9, and valve 9 connects air pressure space 8, wherein, valve 9 provides gas input air pressure space 8.
The tyre pressure sensor 100 of the present invention includes a body 10 and a sensing module 20, and sensing module 20 is located at body 10In an internal accommodation space 11, wherein, body 10 is movably set in air pressure space 8, to the quality of leveling wheel 1, andThrough the gas pressure in a sensing unit 21 sensing air pressure space 8 of sensing module 20, so as to reach while have concurrently balanceWheel and the effect for sensing tire pressure.The material of body can select rubber or other flexible materials to be made, so as to reach dampingEffect, avoid the sensing module in body from being given a shock and cause to damage.Certainly, body can also use non-flexible material systemInto.
Body 10 has an outer rim 12, and the shape of body 10 is in spheroid, ellipsoid or polyhedron, in this specific embodimentIn, the shape of body 10 is in spheroid, when wheel 1 rotates and when driving vehicle to advance, the centrifugal force that wheel 1 rotates, makes body 10Outer rim 12 be in rolling contact with tangential direction when wheel 1 is advanced and the inner tread 7 of tire 3, in a manner of dynamic equilibrium, offsetWheel 1 and the uneven vibrations caused by vehicle wheel component, can be with the quality of leveling wheel 1, so as to reach the balance of wheel effectFruit.It should be noted that the quantity of body 10 can make one or more in wheel, user can according to demand, orVehicle class adjusts the quantity of body 10, and in this specific embodiment, the quantity of body 10 is multiple.
Sensing module 20 has a circuit substrate 22, and be mutually coupled located at circuit substrate 22 and with sensing unit 21The power unit 25 of one CPU 23, a wireless transmission unit 24 and an offer electric power, wherein, in this specific embodimentIn, sensing unit 21, CPU 23 and wireless transmission unit 24 integrate；Wireless transmission unit 24 can be indigo plantTooth or radio-frequency antenna, wherein, radio-frequency antenna can be sub-1GHz, that is, the frequency of radio-frequency antenna is less than 1GHz, such as：The frequency ranges such as 315MHz, 434MHz, 868MHz or 915MHz；Power unit 25 is battery.
Refer to shown in Fig. 2 and Fig. 4, in the tyre pressure sensor with wheel balance effect of the invention shown in Fig. 2In specific embodiment, a through hole 13 is opened up on body 10, through hole 13 connects accommodation space 11 and air pressure space 8, circuit substrate 22It is fastened in accommodation space 11, so that sensing module 20 is fixed on body 10, the gas permeation through hole 13 in air pressure space 8 entersAccommodation space 11.
Refer to shown in Fig. 3 and Fig. 4, in the tyre pressure sensor with wheel balance effect of the invention shown in Fig. 3In specific embodiment, sensing module 20 is fixedly arranged on the accommodation space 11 of body 10 by a filling member 30, and filling member 30 fills up appearance11 between being empty, body 10 is provided with a channel 14, and channel 14 connects air pressure space 8 and linked with sensing unit 21, sensing unit 21The gas pressure in air pressure space 8 is sensed by channel 14, channel 14 here is equivalent to a through hole so that sensing unit 21 can be withThe gas pressure in air pressure space 8 is sensed, channel here can be a through hole, or a sensing member, the sensing member one endLinked with sensing unit 21, one end penetrates the side wall of body from the inside of body, i.e. its outer face flushes with the outer face of body.
Specifically, filling member 30 is viscose.Certainly, in other specific embodiments, filling member can also be other softProperty or non-flexible material, as long as it can be such that sensing module 20 is fixedly arranged in the accommodation space 11 of body 10.Pass throughThe filling member 30 of flexibility is set in accommodation space, not only sensing module 20 can effectively be fixed, work as tyre pressure sensor100 with wheel 1 when shaking, and is covered by due to sensing module 20 in the filling member 30 of flexibility, therefore, flexible filling member30 can also carry out damping protection to sensing module 20.
When sensing unit 21 senses the gas pressure in air pressure space 8, sensing unit 21 can produce a pressure signal simultaneouslyPressure signal is sent to CPU 23, and CPU 23 receives pressure signal, and by being wirelessly transferred listMember 24 wirelessly outwards transmits pressure signal, and wireless transmission unit 24 can be with the electronic control unit (ECU) of vehicleWireless connection, when electronic control unit receives pressure signal, just the gas pressure in air pressure space 8 is shown, or work as gasThe gas pressure in pressure space 8 sends alarm signal when occurring abnormal, to remind driver, wherein, electronic control unit can beThe prompting interface of any one in instrument, numerical monitor, cresset or sound.
Therefore, the body 10 provided with sensing module 20 is placed directly in air pressure space 8, body 10 can be with wheel 1In the activity of air pressure space 8 in tire 3 during traveling, to sense the gas pressure in air pressure space 8, so as to realize tyre pressure sensorFast simple installation, and the unbalanced problem of wheel mass will not be caused.
In addition, body 10 is in rolling contact when can be advanced with wheel 1 in the inner tread 7 with tire 3, by the use of body 10 asThe dynamic equilibrium of wheel 1, so as to offset caused by wheel 1 and vehicle wheel component it is uneven shake, with the mass of leveling wheel 1 andReduce wheel 1 to shake, so as to reach leveling wheel and have the effect of tire pressure senses concurrently.
Refer to shown in Fig. 6 and Fig. 7, a kind of wheel balancing systems are disclosed during this is specific, it includes above-mentioned tire pressure sensingDevice 100, in addition to multiple balanced bodies 40, multiple balanced bodies 40 are movably arranged at air pressure space 8 simultaneously with tyre pressure sensor 100, itsIn, in the present embodiment, the shape of each balanced body 40 is identical with the shape of body 10 of tyre pressure sensor 100, in addition, each balanced body40 can be according to actual functional requirement with the size of body 10, and is set as identical or differs；Furthermore when tire pressure sensesDevice 100 for it is a plurality of when, the quantity of tyre pressure sensor 100 can be equal to, the quantity more than or less than balanced body 40, user's energyIt is enough to increase and decrease balanced body 40 and the quantity of tyre pressure sensor 100 according to required, wherein, in this specific embodiment, tyre pressure sensor100 quantity is equal to the quantity of balanced body 40.
Therefore, when wheel 1 rotates and drives vehicle to advance, the centrifugal force of the rotation of wheel 1, each balanced body 40 and body are made10 outer rim 12 is in rolling contact with tangential direction when wheel 1 is advanced and the inner tread 7 of tire 3, using each balanced body 40 andBody 10 makees the dynamic equilibrium of wheel 1, so as to offset wheel 1 and the uneven vibrations caused by vehicle wheel component, to reach balanceThe effect of wheel.
It should be noted that above-described embodiment can independent assortment as needed.Described above is only the preferred of the present inventionEmbodiment, it is noted that for those skilled in the art, do not departing from the premise of the principle of the inventionUnder, some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.