CN204915143U - Built -in tire pressure sensor - Google Patents
Built -in tire pressure sensor Download PDFInfo
- Publication number
- CN204915143U CN204915143U CN201520661525.XU CN201520661525U CN204915143U CN 204915143 U CN204915143 U CN 204915143U CN 201520661525 U CN201520661525 U CN 201520661525U CN 204915143 U CN204915143 U CN 204915143U
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- air guide
- circuit board
- sticker
- sensor according
- elastic body
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Abstract
The utility model provides a built -in tire pressure sensor, include: main circuit board, sensing element, radio -frequency antenna and battery, battery are the main circuit board power supply, and the radio -frequency antenna is with detection signalling to the outside receiver of sensing element production, sensing element, radio -frequency antenna and battery set up forming circuit board assembly on main circuit board respectively, circuit board assembly is moulded in an elastomer by whole package, be provided with in the subregion of elastomer surface and pasted sealed air guide window by waterproof ventilative glue, be provided with the air guide cavity between air guide window and the sensing element. The utility model provides a built -in tire pressure sensor both can dustproof and waterproof to improving the monitoring precision, also can simplifying manufacturing process, reduce cost is favorable to the assembly of low -grade car, thereby improves the popularity.
Description
Technical field
The utility model relates to monitoring automobile tyre pressure technical field, in particular to the built-in tyre pressure sensor of one.
Background technology
Along with the progress of industrial economy, automobile starts a large amount of use, in the driving process of automobile, tire fault be lethality maximum be also the accident potential of the most difficult prevention, be the major reason that sudden traffic accident occurs.When the tire pressure in running car is too high, the area of contact on tire and ground can reduce, and the pressure that now tire bears improves relatively, and the earth-grasping force of tire can reduce; When automobile is through hollow or road surface of jolting, because not having sufficient space absorbing vibration in tire, the stability that also can affect automobile and the traveling comfort taken, also can cause and put more effort to the impact of suspension, bring harm thus.
At present, system for monitoring pressure in tyre (TirePressureMonitoringSystem, be called for short " TPMS ") be, in vehicle traveling process, real-time automatic monitoring is carried out to tire pressure, and tire flat and infrabar are reported to the police, to guarantee traffic safety.The core devices of TPMS is tyre pressure sensor.
The mounting means of existing tyre pressure sensor has two types:
The first kind is indirect type (Wheel-SpeedBasedTPMS, be called for short " WSB "), and this WSB system is the rotating speed difference coming between comparative tire by the wheel speed sensors of automobile ABS system, to reach the object of monitoring tire pressure; ABS determines wheel whether locking by wheel speed sensors, thus determines whether start antiblock device; When tire pressure reduces, the weight of vehicle can make diameter of tyres diminish, and this will cause the speed of a motor vehicle to change, and namely this change can be used for alert trigger system and give a warning to driver.
Equations of The Second Kind is direct-type (Pressure-SensorBasedTPMS, be called for short " PSB "), this PSB system utilizes to be arranged on the air pressure that each pressure sensor of taking turns tyre cavity directly measures tire, wireless launcher is utilized pressure information to be sent to system central receiver module from inside tires, then each tire pressure information is shown, when tire pressure is too low or leak gas, system can automatic alarm.
The sensor that conventional PSB system adopts has two kinds of modes:
First kind of way is built-in, is pasted on tire inner surface by sensor, the full-sized car that when this mode is usually used in rolling, deformations of tyre is little, but Long-Time Service can produce sensor detachment problems.
The second way is external, is fixed on wheel hub or to be embedded in tire valve intracardiac by tyre pressure sensor, and these modes are usually used in C-class, but Long-Time Service is subject to the impact of the foreign material such as dust, aqueous vapor, monitoring precision is poor, and sensor manufacturing process is complicated, expensive.
In addition, WSB system is not suitable for the low-grade automobile not configuring ABS system.
In view of this, for the technical matters existing for the sensor that PSB system adopts, need to design new tyre pressure sensor, both can dustproof and waterproof, to improve monitoring accuracy, also can simplified manufacturing technique, reduce costs, be conducive to the assembling of low-grade automobile, thus improve popularity rate.
Utility model content
For above-mentioned technical matters, the utility model provides a kind of built-in tyre pressure sensor, can apply simple production technology, reduce costs, and possesses dust-proof, water-proof function.
For achieving the above object, the utility model provides a kind of built-in tyre pressure sensor, comprise: main circuit board, sensitive member, radio-frequency antenna and battery, battery is that main circuit board is powered, and the detectable signal that sensitive member produces is emitted to external reception device by radio-frequency antenna; Sensitive member, radio-frequency antenna and battery are separately positioned on main circuit board and form circuit board assembly; Circuit board assembly is plastic in an elastic body by entirety; The air guide window sealed by waterproof and breathable sticker is provided with in the subregion of outer elastomeric surface; Air guide cavity is provided with between air guide window and sensitive member.
Further, described air guide window is the through hole be set directly on elastic body, and described sticker is attached to the top of described through hole.
Further, described air guide window is the groove be arranged on elastic body, and described sticker is attached on the cell wall of groove.
Further, described air guide window is the groove be arranged on elastic body, and when described sticker coordinates with window, the outline radian of described sticker is consistent with described elastomeric outline radian.
Further, the inwall of described groove is stepped.
Further, described built-in tyre pressure sensor can also comprise: at least one projection, is arranged on the outer circumferential that described waterproof and breathable sticker and air guide window form tight joint.
Further, described built-in tyre pressure sensor can also comprise: detection window, and it is arranged on described air guide cavity and described sensitive member junction.
Further, the area of described detection window is less than the area of described air guide window.
Further, described elastomeric shape is arbitrary as follows: the ball bodily form, oval shape, the square bodily form, cuboid or hexahedron; And/or the shape of described air guide cavity is arbitrary as follows: cylindrical, conical, cuboid or trapezoidal.
Further, described elastomeric surface has well-distributed sunk structure.
Further, the sunk structure of described surface of elastomer is designed in cellular.
Further, the state parameter of described gas comprises combinations arbitrary or several as follows: gaseous species, gaseous tension, temperature and/or humidity.
Further, described sensitive member comprises: gas pressure detection mechanism and/or gas temperature testing agency.
The built-in tyre pressure sensor that the utility model provides, the sticker adopted has water-proof function, by being be bonded on elastic body by sticker, become an elastomeric part, in the sensing unit entered by air guide duct in elastic body to prevent dust, water, the sticker that the utility model adopts simultaneously has airing function, thus gas can be allowed to enter.In addition, sensitive member, radio-frequency antenna and battery are separately positioned on main circuit board and form circuit board assembly by the utility model, and by overall for circuit board assembly plastic in an elastic body, can simplified manufacturing technique, reduce costs, be conducive to the assembling of low-grade automobile, thus improve popularity rate.
The aspect that the utility model is additional and advantage will part provide in the following description, and these will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the generalized section of the built-in tyre pressure sensor configuration status of the utility model one embodiment;
Fig. 2 is the generalized section of the air guide window of the utility model one embodiment, air guide cavity and detection window relative position relation;
Fig. 3 is the generalized section that the air guide window of the built-in tyre pressure sensor of the utility model one embodiment coordinates with waterproof and breathable sticker;
Fig. 4 is the generalized section of the oval build sensor of another embodiment of the utility model;
Fig. 5 is the generalized section of the hexahedron sensor of another embodiment of the utility model;
Fig. 6 is the peripheral protruding birds-eye view of sticker of the utility model one embodiment.
Specific embodiment
For making those skilled in the art understand the technical solution of the utility model better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Hereinafter will describe embodiment of the present utility model in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
Those skilled in the art of the present technique are appreciated that unless expressly stated, and singulative used herein " ", " one ", " described " and " being somebody's turn to do " also can comprise plural form.Should be further understood that, the wording used in specification sheets of the present utility model " comprises " and refers to there is described feature, integer, step, operation, element and/or assembly, but does not get rid of and exist or add other features one or more, integer, step, operation, element, assembly and/or their group.Should be appreciated that, when we claim element to be " connected " or " coupling " to another element time, it can be directly connected or coupled to other elements, or also can there is intermediary element.In addition, " connection " used herein or " coupling " can comprise wireless connections or couple.Wording "and/or" used herein comprises one or more arbitrary unit listing item be associated and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the utility model.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Fig. 1 is the generalized section of the built-in tyre pressure sensor configuration status of the utility model one embodiment.As shown in Figure 1, the utility model provides a kind of built-in tyre pressure sensor 1, comprise: main circuit board 2, sensitive member 3, radio-frequency antenna 4 and battery 5, battery 5 is powered for main circuit board 2, and the detectable signal that sensitive member produces is emitted to external reception device by radio-frequency antenna 4; Sensitive member 3, radio-frequency antenna 4 and battery 5 are separately positioned on main circuit board 2 and form circuit board assembly; Circuit board assembly is plastic in an elastic body 6 by entirety; The air guide window 8 sealed by waterproof and breathable sticker 9 is provided with in the subregion of elastic body 6 outside face; Air guide cavity 7 is provided with between air guide window 8 and sensitive member 3.
As shown in Figure 1, the radical function device of tyre pressure sensor 1 comprises four parts: sensitive member 3, radio-frequency antenna 4, battery 5 and main circuit board 2, these four part forming circuit plate assemblies.Sensitive member 3 detects the state parameter (such as, gaseous species, gaseous tension, temperature and/or humidity) of gas in tire, and produces detection signal; By the electrical interconnection on main circuit board 2, detection signal is sent to radio-frequency antenna 4; Detection signal sends to signal receiver to carry out subsequent treatment by radio-frequency antenna 4; In this signal acquisition process, provide power supply by the battery 5 on main circuit board 2.Such as, signal receiver can be arranged in the meter system of automobile.
Such as, battery 5 can be welded on circuit boards, or battery 5 reed pressure can be adopted on circuit boards.Power-supply battery 5 used can be button cell 5.
Such as, can by sensor welding on circuit boards.Such as, radio-frequency antenna 4 can be welded on circuit boards.
Be understandable that, whole circuit card is by plastic inside spheroid, and the pore only leaving ventilation goes directly sensor sensing element, and water-proof adhesive plaster 9 is bonded on spheroid, becomes a part for spheroid, and it can prevent dust, entering of water, but gas can be allowed to enter.
Fig. 2 is the structural representation of the air guide window of the utility model one embodiment, air guide cavity and detection window relative position relation.As shown in Figure 2, circuit board assembly envelope mentioned above is moulded in elastic body 6 (such as, spherical) by the utility model, only stays air guide cavity 7 to lead to elastic body 6 outside.The shape of elastic body 6 can be following arbitrary shape: the ball bodily form, oval shape, the square bodily form, cuboid or hexahedron.The shape of air guide cavity 7 can be following arbitrary shape: cylindrical, conical, cuboid or trapezoidal.Be understandable that, above-mentioned elastic body 6 shape is only preferred embodiment of the present utility model, not form the utility model propose any restriction of elastic body 6 concrete shape, the utility model to carry elastic body 6 can be the geometry shape that can roll or slide arbitrarily.The impulse force produced when rolling in elastic body 6 tire to alleviate, the surface of elastic body 6 has well-distributed sunk structure, and such as, the surface of elastic body 6 can be designed in cellular.
As a kind of embodiment, circuit board assembly is plastic in an elastic body 6 by entirety; Be provided with air guide window 8 in elastic body 6, can make to form airflow connection between elastic body 6 and sensitive member 3, make sensitive member 3 state parameter of gas in tire can be detected; Air guide window 8 is sealed towards the outside through side of elastic body 6 by waterproof and breathable sticker 9.
As a kind of embodiment, air guide window 8 can be set directly at the through hole on elastic body 6, and sticker 9 is attached to the top of described through hole.
As another kind of embodiment, air guide window 8 can be arranged on the groove on elastic body 6, and sticker 9 is attached on the cell wall of groove.
As another embodiment, air guide window 8 can be arranged on the groove on elastic body 6, and when sticker 9 coordinates with air guide window, the outline radian of sticker 9 is consistent with the outline radian of elastic body 6.Preferably, in order to increase contact surface, better to realize the effect of adhesive seal, can by stepped for the design of the inwall of groove.
Can above-mentioned three kinds of embodiments, as shown in Figure 2, make waterproof and breathable sticker 9 and air guide window 8 form tight joint, and after being combined with air guide window 8, forming a part for the outer surface of elastic body 6.
Further, air guide cavity 7 and sensitive member 3 junction are provided with detection window 10.
As a kind of embodiment, when the area of detection window 10 is less than the area of air guide window 8, air guide duct is actual is the frustum of a cone.
Fig. 3 is the generalized section that the air guide window of the built-in tyre pressure sensor of the utility model one embodiment coordinates with waterproof and breathable sticker 9.As shown in Figure 3, air guide cavity 7 is provided with between air guide window 8 and sensitive member 3; The air guide window 8 sealed by waterproof and breathable sticker 9 is provided with in the subregion of elastic body 6 outside face.Waterproof and breathable sticker 9 can guarantee that the both sides air pressure of sticker 9 is consistent, and the water simultaneously in tire or foreign material cannot enter air guide window 8 and result in blockage, and makes the work of tyre pressure sensor 1 not by the impact of external environment.
It will be appreciated by persons skilled in the art that tire pressure monitoring mainly detects tire internal gas pressure, air pressure is the bar pressure acted on unit area, namely equals the weight of vertical air post unit area extending up to aeropause.Such as, sensitive member 3 can be so a kind of air pressure sensing element, and be a film to pressure-sensitive, it is connected to a flexible resistor.When the pressure of tested gas reduces or raises, this deformation of thin membrane, the resistance of this resistor will change.After the resistance of resistor changes, sensitive member 3 obtains signal voltage, being accepted by data trap through A/D conversion, and then data trap passes to signal receiver result in a suitable form and carries out subsequent treatment.Such as, can utilize MEMS technology on monocrystalline silicon piece, process vacuum cavity and electric balance, voltage inhibition effect is that bridge wall resistance value changes, and produce a difference voltage signal, this signal amplifies through amplifier, again through voltage current transformation, the output voltage at the brachium pontis two ends of electric balance is directly proportional to applied pressure, and after temperature compensating and calibration, have volume little, precision is high, fast response time, not by the feature of influence of temperature change; The way of output of air pressure sensing element can be that analog voltage exports and digital signal exports.
Further, except detecting except air pressure, temperature sensor can also be configured, to detect the ambient temperature in tire; Moisture sensing element can also be configured, to detect the ambient humidity in tire.
Fig. 4 is the generalized section of the oval build sensor of another embodiment of the utility model.Fig. 5 is the generalized section of the hexahedron sensor of another embodiment of the utility model.Tyre pressure sensor 1 profile of the utility model design is the elastic body 6 of any movable geometric configuration.In use, elastic body 6 of the present utility model is implanted in vehicle tyre, without the need to carrying out the fixing operations such as similar buckle, bolt; When vehicle wheel rotation, tyre pressure sensor 1 can roll in tire, by forming airflow connection between elastic body 6 and sensitive member 3, makes sensitive member 3 state parameter of gas in tire can be detected.Again because air guide duct is sealed by waterproof and breathable sticker 9, so can dust-proof, waterproof towards the outside through port of elastic body 6.
Fig. 6 is the peripheral protruding birds-eye view of sticker 9 of the utility model one embodiment.When sensor sticker 9 and tire inner wall contact surface are more greatly or when contacting completely, measure air pressure and can produce comparatively big error.In order to overcome measured error, the outer circumferential that can form tight joint at waterproof and breathable sticker 9 and air guide window 8 arranges protruding 11.As shown in Figure 6, in waterproof and breathable sticker 9 arranged outside around four projections 11 of sticker 9 circumference.Be understandable that, the quantity arranging protruding 11 can be more than one or two.Both can divide equally protruding 11 around sticker 9 circumference and arrange or be symmetrical arranged, also can arrange by irregular mode, concrete set-up mode depends on the geometric configuration of sensor and the shape of tire inwall, and the way of contact between the two and area of contact.
The built-in tyre pressure sensor 1 that the utility model provides, the sticker 9 adopted has water-proof function, by being be bonded on elastic body 6 by sticker 9, become a part for elastic body 6, enter in the sensing unit in elastic body 6 to prevent dust, water by air guide window 8, the sticker 9 that the utility model adopts simultaneously has airing function, thus gas can be allowed to enter.In addition, sensitive member 3, radio-frequency antenna 4 and battery 5 are separately positioned on main circuit board 2 and form circuit board assembly by the utility model, and by overall for circuit board assembly plastic in an elastic body 6, can simplified manufacturing technique, reduce costs, be conducive to the assembling of low-grade automobile, thus improve popularity rate.
The above is only section Example of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a built-in tyre pressure sensor, comprising: main circuit board, sensitive member, radio-frequency antenna and battery, and battery is that main circuit board is powered, and the detectable signal that sensitive member produces is emitted to external reception device by radio-frequency antenna, it is characterized in that:
Sensitive member, radio-frequency antenna and battery are separately positioned on main circuit board and form circuit board assembly;
Circuit board assembly is plastic in an elastic body by entirety;
The air guide window sealed by waterproof and breathable sticker is provided with in the subregion of outer elastomeric surface;
Air guide cavity is provided with between air guide window and sensitive member.
2. sensor according to claim 1, is characterized in that, described air guide window is the through hole be set directly on elastic body, and described sticker is attached to the top of described through hole.
3. sensor according to claim 1, is characterized in that, described air guide window is the groove be arranged on elastic body, and described sticker is attached on the cell wall of groove.
4. sensor according to claim 1, is characterized in that, described air guide window is the groove be arranged on elastic body, and when described sticker coordinates with window, the outline radian of described sticker is consistent with described elastomeric outline radian.
5. the sensor according to claim 3 or 4, is characterized in that, the inwall of described groove is stepped.
6. sensor according to claim 1, is characterized in that, also comprises:
At least one projection, is arranged on the outer circumferential of described waterproof and breathable sticker and air guide window joint.
7. sensor according to claim 2, is characterized in that, also comprises:
Detection window, it is arranged on described air guide cavity and described sensitive member junction.
8. sensor according to claim 7, is characterized in that, the area of described detection window is less than the area of described air guide window.
9. sensor according to claim 1, is characterized in that, described elastomeric surface has well-distributed sunk structure.
10. sensor according to claim 9, is characterized in that, the sunk structure of described surface of elastomer is designed in cellular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520661525.XU CN204915143U (en) | 2015-08-28 | 2015-08-28 | Built -in tire pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520661525.XU CN204915143U (en) | 2015-08-28 | 2015-08-28 | Built -in tire pressure sensor |
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| Publication Number | Publication Date |
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| CN204915143U true CN204915143U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520661525.XU Expired - Fee Related CN204915143U (en) | 2015-08-28 | 2015-08-28 | Built -in tire pressure sensor |
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| CN (1) | CN204915143U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097597A (en) * | 2017-06-16 | 2017-08-29 | 深圳市卡美特电子技术有限公司 | Built-in stickup sensor component |
| CN108170121A (en) * | 2017-12-18 | 2018-06-15 | 温州大学瓯江学院 | One kind monitors big data vehicle safety control system based on cloud |
| CN108263150A (en) * | 2018-03-29 | 2018-07-10 | 上海为彪汽配制造有限公司 | The tire pressure detector of free-standing |
| CN108327466A (en) * | 2018-03-30 | 2018-07-27 | 上海为彪汽配制造有限公司 | Tyre pressure sensor with shell protection |
| TWI643765B (en) * | 2017-10-13 | 2018-12-11 | 為升電裝工業股份有限公司 | Tire pressure detector with wheel balancing function and the wheel balancing system thereof |
| CN112109504A (en) * | 2019-06-20 | 2020-12-22 | 上海为彪汽配制造有限公司 | Floating tyre pressure sensing device |
| CN112406419A (en) * | 2020-11-24 | 2021-02-26 | 深圳市元征科技股份有限公司 | Tire pressure control equipment and tire pressure control method |
| TWI736743B (en) * | 2018-02-14 | 2021-08-21 | 為升電裝工業股份有限公司 | Non-fixed tire pressure detector |
-
2015
- 2015-08-28 CN CN201520661525.XU patent/CN204915143U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097597A (en) * | 2017-06-16 | 2017-08-29 | 深圳市卡美特电子技术有限公司 | Built-in stickup sensor component |
| TWI643765B (en) * | 2017-10-13 | 2018-12-11 | 為升電裝工業股份有限公司 | Tire pressure detector with wheel balancing function and the wheel balancing system thereof |
| CN108170121A (en) * | 2017-12-18 | 2018-06-15 | 温州大学瓯江学院 | One kind monitors big data vehicle safety control system based on cloud |
| TWI736743B (en) * | 2018-02-14 | 2021-08-21 | 為升電裝工業股份有限公司 | Non-fixed tire pressure detector |
| CN108263150A (en) * | 2018-03-29 | 2018-07-10 | 上海为彪汽配制造有限公司 | The tire pressure detector of free-standing |
| CN108327466A (en) * | 2018-03-30 | 2018-07-27 | 上海为彪汽配制造有限公司 | Tyre pressure sensor with shell protection |
| CN112109504A (en) * | 2019-06-20 | 2020-12-22 | 上海为彪汽配制造有限公司 | Floating tyre pressure sensing device |
| CN112109504B (en) * | 2019-06-20 | 2022-09-20 | 上海为彪汽配制造有限公司 | Floating tyre pressure sensing device |
| CN112406419A (en) * | 2020-11-24 | 2021-02-26 | 深圳市元征科技股份有限公司 | Tire pressure control equipment and tire pressure control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20200828 |
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| CF01 | Termination of patent right due to non-payment of annual fee |