CN2794898Y

CN2794898Y - Electronic radio tire pressure detector

Info

Publication number: CN2794898Y
Application number: CNU2005200253783U
Authority: CN
Inventors: 柯月英
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-09
Filing date: 2005-03-09
Publication date: 2006-07-12
Anticipated expiration: 2015-03-09

Abstract

The utility model relates to an electronic wireless tyre pressure detector which is arranged on an air tap outside a tyre and comprises a first casing, a detection control circuit board, a pressure sensor, a thimble, an antenna board, a battery and a second casing, wherein the inner edge of the front end of the first casing is designed into a joint shape, and the lower half part of the joint is a containing space with a downward opening; the detection control circuit board is arranged in the containing space, and the upper surface of the detection control circuit board is provided with an electricity conducting thimble fixing seat; the pressure sensor is a semiconductor chip sensor arranged in the thimble fixing seat and is electrically connected with the detection circuit board through conducting wires; the thimble is made of electricity conducting material and has the structure that the lower segment is a hollow body with a downward opening, the middle segment forms a flange body, the upper segment is provided with a through hole communicated with the hollow body, the bottom face of the middle segment is provided with an insulating washer, and the hollow body of the lower segment is fixed in the thimble fixing seat to form an air tight chamber; the antenna board is electrically connected with the detection control circuit board; the battery is arranged on the antenna board, a first form electrode on the top face of the battery is in contact with a first form power supply joint of the detection control circuit board, a second form electrode on the bottom face of the battery is electrically communicated with a second form power supply joint of the detection control circuit board through electricity conducting pieces; the second casing is bonded on the bottom of the first casing and used for covering the components; the reliability of tyre pressure detection can be enhanced.

Description

The electronic type radio tire-pressure detector

One, technical field

The utility model relates to tire pressure detector, relates in particular to a kind of electronic detection element and power source body and all is located at outside tires, reaches the electronic type radio tire-pressure detector that directly transmits and change power source body or keep in repair in outside tires.

Two, background technology

Vehicle is after a period of time of travelling, or after the influence that tan by the sun sunshine and night, temperature descended, be easy to generate the pressure release situation, make tire pressure be lower than normal value 28psi, for traffic safety, be a kind of potential danger, the especially vehicle in running at high speed, as because of the explosion of tire pressure deficiency the time, its consequence is hardly imaginable especially.

So, detection and warning device at tire pressure in travelling, existing a lot of practitioners drop into research and development, and this type patent is seen in announces No. 536439, No. 400811, No. 149143, No. 177543, No. 5604415, No. 574977, No. 090946, No. 100539 and No. 396974 etc. in preceding patent case in Taiwan.Existing in preceding patent case, can be divided into electronic type haply and detect and mechanical detection, wherein, the service life of mechanical detector is shorter, and volume is big and accuracy rate is relatively poor, because of the improved target of non-the utility model, so do not give unnecessary details.

The electronic type tire pressure detector, again tire pressure detector being installed in the hidden type pressure tester on the inside tires steel ring, such patent is seen in Taiwan to be announced in the patents such as No. 404354, No. 578706 and No. 578707.Such advantage is that tire pressure detector is hidden in the tire and can directly records tire pressure, its keystone configuration as shown in Figure 1 and Figure 2, comprise one group of housing 11, one is located at the detector circuit plate 12 in the housing 11, this circuit card 12 has a signal emitting antenna 13, and the battery 14 of two supply circuit plate 12 required power supplys; In addition, these housing 11 front ends connect a valve 15.When aforementioned element is assembled into tire pressure detector 10, then as shown in Figure 2, be fixed on the tire 20 in-to-in steel rings 21, and make valve 15 steel ring 21 that stretches through, utilize a pad 16 and a nut 17 fixing then, lock protecting cover 18 at last and finish assembling.

Aforesaid existing tire pressure detector 10, when it detected abnormal tyre pressure, emitting antenna 13 sent signal, was received by the receptor (not shown) that is located in the car, can learn abnormal tyre pressure; But this emitting antenna 13 is positioned at tire 20, is subject to stop and influences the emission of signal, causes its accuracy and fiduciary level not good, and this is that it does not improve part to the greatest extent.Secondly, US Patent also discloses a kind of vehicle tyre in-to-in tire pressure detector that is hidden in for No. 5798689, and it is the same with above-mentioned patent, all be concealed, its shortcoming is, required power supply when this hidden type pressure detector all needs to move with battery supplied, because tire pressure detector is hidden in the pneumatic tyre, the electric power of battery is limited, often needs to change battery, changes relatively difficulty and loaded down with trivial details of operation, must to pull down tire from vehicle, lose heart, take off pneumatic tyre, take tire pressure detector apart, change battery again, change behind the battery more oppositely assembling and go back, cause and change the complicated and difficult of battery operation.

Because the shortcoming of existing product, the utility model creator after the in-depth study exploitation, designs the utility model, with the shortcoming of the above-mentioned existing product of effective improvement according to being engaged in the sector experience for many years finally.

Three, utility model content

Main purpose of the present utility model is to overcome the above-mentioned shortcoming that existing product exists, and provide a kind of electronic type radio tire-pressure detector, its circuit card with whole detector, pressure sensor and battery etc. all are assembled in outside the exterior valve of vehicle tyre, has synchronous sensing inside tires tire pressure, and emitting antenna is located at the outside, can reduce interference, the effect of the receptor to car that transmits more accurately, and then improve the fiduciary level of detecting tire pressure, strengthen safety in utilization.

Another purpose of the present utility model provides a kind of electronic wireless tire pressure detector, with pressure sensor (SENSOR) be arranged on one can with air-pressure chamber that inside tires directly is communicated with in, the precision that makes its sensing tire pressure is with to be located at inside tires identical, and has effect easy to maintenance.

The purpose of this utility model is realized by following technical scheme.

The utility model electronic type radio tire-pressure detector, it is characterized in that, tire pressure detector integral body is located on the outside tires valve, comprising: one first housing, its front inner edge cooperates cranked tire valve and is set as the joint shape that is spirally connected, and this joint lower part forms a downward opening accommodation space; One detecting control circuit board is provided in a side of in the accommodation space, and its upper face center is provided with a conductive thimble permanent seat; One pressure sensor, (SENSOR) is located in the thimble permanent seat for the semiconductor chip inductor, and is electric connection by lead and circuit for detecting plate; One thimble is made of conductive material, and its hypomere portion is downward opening ducted body, center section part forms flange body, epimere portion side is provided with a through hole and is communicated with ducted body, and in the center section part bottom surface a sheathed insulating washer, hypomere portion ducted body be fixed in the thimble permanent seat and form air-tight chamber; One antenna plate is electric connection with circuit card, to transmit; One battery is located on the antenna plate, and the first type electrode of its end face is contacted with the first type power supply contact of detecting control circuit board, and the second type electrode of bottom surface is electrical communication through an electric-conductor with the second type power supply contact of circuit card; One second housing, its top is opening-like, and is combined in first housing bottom, to coat aforesaid each element.

Aforesaid electronic type radio tire-pressure detector, wherein thimble permanent seat root edge is provided with a leakage washer.

Aforesaid electronic type radio tire-pressure detector, wherein conduction is provided with a leak-proof gasket with the center section part upper limb face of thimble.

Aforesaid electronic type radio tire-pressure detector, wherein thimble is when joint is screwed onto cranked tire valve, the control cock of its this valve of end face roof pressure, tire pressure air inlet secret room, the power supply of battery by thimble permanent seat and thimble to valve, conduct electricity back first housing and reach the detecting control circuit board by valve, form the current supply circuit of electrically conduct (ON); When tire pressure detector when cranked tire valve is dismantled, then automatically form (OFF) state that opens circuit.

The beneficial effect of electronic wireless tire pressure detector of the present utility model is, its whole group is located on the outside valve, its structure is the pressure sensor that utilizes a chip type quartz conductor to be constituted, directly lead is on circuit card, utilize the locking of conduction thimble and thimble permanent seat, form air-tight chamber voltage supply power sensor detecting force value, so, observed reading accurately can be obtained; Utilize this thimble and thimble permanent seat electric installation simultaneously, when tire pressure detector is locked in valve, just power as power supply supply, and automatic switch off when pulling down, the effect that reaches power saving and prevent to report by mistake.This thimble is when joint is screwed onto cranked tire valve, the control cock of its end face roof pressure valve, make tire pressure enter air-tight chamber, and the power supply of battery by thimble permanent seat and thimble to valve, conduct electricity back first housing and reach the detecting control circuit board by valve, form the current supply circuit of electrically conduct (ON); Again, when tire pressure detector when cranked tire valve is dismantled, then automatically form (OFF) state that opens circuit.Thus, the utility model also has in installing during the utility model except that having aforementioned effect, must remove a tyre, only need its locking is got final product on valve, and have ease of assembly, and the advantage that can inspect at any time and keep in repair; Moreover, itself and existing machinery formula radio tire-pressure detector relatively because do not need to be provided with movable partss such as spring, piston, so it is little to have a volume, is difficult for the high advantage of et out of order and precision.

Four, description of drawings

Fig. 1 is existing hidden type pressure detector STRUCTURE DECOMPOSITION scheme drawing.

Fig. 2 is existing hidden type pressure detector unitized construction scheme drawing.

Fig. 3 is the utility model decomposition texture cutaway drawing.

Fig. 4 is the utility model unitized construction cutaway view.

Fig. 5 is installed in the scheme drawing of valve for the utility model tire pressure detector.

Fig. 6 is the utility model detecting and emission enforcement circuit block diagram.

Fig. 7 is the utility model acceptor circuit diagram of block.

Main tender explanation among the figure: 30 first housings, 31 joints, 32 accommodation spaces, 33 not only sliding surfaces, 34 external screw threads, 35O shape ring, 40 detecting control circuit boards, 41 thimble permanent seats, 42 spare parts, 43 leakage washers, 44 first type power supply contacts, 45 second type power supply contacts, 50 pressure sensors, 60 thimbles, 61 hypomere portions, 610 ducted bodies, 62 center section parts, 63 epimere portions, 631 through holes, 64 insulating washers, 65 leak-proof gaskets, 66 air-tight chambers, 70 antenna plate, 80 batteries, 81 first type electrodes, 82 second type electrodes, 83 electric-conductors, 90 second housings, 91 openings, 92 negative threads, 100 tire pressure detectors, 200 receptors, 201 microprocessors, 202 signal receiving units, 203 mnemons, 204 operated keys, 205 siren hornes, 206 vibroswitch, the 207LCD display panel, the 208LCD back light unit, 209GSM﹠amp; GPRS module, 401 microprocessors, 402 reference voltage sources, 403 vibroswitch, 404 signal amplification circuits, 405 low voltage checking circuits, 406 transmission circuits.

Five, the specific embodiment

Consult Fig. 3 to shown in Figure 5, the preferred embodiment of the utility model electronic type radio tire-pressure detector, wherein, Fig. 3 is its decomposition texture scheme drawing, and Fig. 4 is its unitized construction cut-away view, and Fig. 5 is the running condition reference diagram that is locked in cranked tire valve.

The utility model includes substantially: one first housing 30, to make by conductive material, and the front inner edge cooperates cranked tire valve, is set as joint 31 shapes that can be spirally connected, and these joint 31 lower parts form a downward opening accommodation space 32; In addition, this larger-diameter surface of housing outer peripheral edges is set as not only sliding surface 33, friction force and ease of assembly when rotating to increase, but be not limited to this.Again, this housing not only is being provided with external screw thread 34 and O shape ring 35 below the sliding surface 33.

One detecting control circuit board 40 is doubling plate and is shaped as preferablely, but is not limited to this, and it is provided in a side of in the accommodation space 32, and upper face center is provided with a conductive thimble permanent seat 41; Moreover circuit card is provided with required circuit and spare part 42.

One pressure sensor 50 is located within the thimble permanent seat 41, and it is a wafer shape quartz conductor (SHNSOR), and utilizes lead mode and this detecting control circuit board 40 to be electric connection;

One thimble 60, but make by conductive material, its hypomere portion 61 is downward opening ducted body 610, center section part 62 forms flange body, epimere portion 63 sides are provided with a through hole 631 at least and are communicated with ducted body 610, and behind the sheathed insulating washer 64 in center section part 62 bottom surfaces, hypomere portion 61 is fixed within this thimble permanent seat 41, and this pressure sensor 50 is positioned within this hypomere portion ducted body 610 and the thimble permanent seat 41 formed air-tight chambers 66 (as shown in Figure 4), for reaching preferable airtight effect, this thimble permanent seat root edge is provided with a leakage washer 65.

One antenna plate 70 is electric connection with this detecting control circuit board 40, is used to transmit.

One battery 80, be used to supply with aforementioned detecting control circuit 40 required power supplys, it is on antenna plate 70, the first type electrode 81 of end face (for example being negative pole or positive pole), be contacted with the first type power supply contact 44 (for example being negative pole end or positive terminal) of this detecting control circuit board 40, the cooresponding second type electrode 82 in bottom surface then is electrical communication by the second type power supply contact 45 of an electric-conductor 83 and circuit card 40.

One second housing 90 is to constitute preferablely with plastic cement material, and its top is opening 91, and is combined in first housing, 30 bottoms, to coat aforesaid each element; The preferable combination of itself and first housing 30 is to be provided with negative thread 92 at opening 91 inner peripherals, is screwed on the external screw thread 34 of first housing 30 whereby, thereby constitutes a complete tire pressure detector 100, as shown in Figure 5.The combination of this first and

second housing

30,90 is not to be defined in screw-in version, other equivalent way also can, but need to consider the comfort feature of its steadiness and dismounting and change battery 80.

Consult shown in Figure 4ly, this tire pressure detector 100 is not screwed onto the vehicle tyre valve as yet, and the first type electrode 81 and the second type electrode 82 of battery 80 formed power supply as yet and prepared this moment, belonged to off state, the effect that reaches power saving and prevent to report by mistake.

Consult shown in Figure 5, this tire pressure detector 100 is locked in the scheme drawing of cranked tire valve 15, this moment this this valve 15 of thimble 60 roof pressures control cock 151, make tire internal air pressure enter air-tight chamber 66, at the same time, the first type electrode, 81 power supplys of battery 80 by circuit card 40 through thimble permanent seat 41 and thimble 60 and the valve 15 that arrives, and conduct electricity back the joint 31 of first housing 30 by valve 15, direction shown in dotted line then, reach the second source contact 45 of circuit card 40 through first housing, 30 bottom surfaces, so as to the electrically conduct current supply circuit of (ON) of formation.

Consult shown in Figure 6, be the circuit block diagram of the utility model detecting control circuit board 40, this detecting control circuit board 40 mainly comprises a microprocessor 401, a reference voltage line 402, a vibroswitch 403, signal amplification circuit 404, a low voltage checking circuit 405 and a transmission circuit 406; This pressure sensor 50 is connected to this signal amplification circuit 404, when the utility model is a power supply state, and under steam the time, can be by this vibroswitch 403 of start signal triggering, make whole detecting process start, the tire pressure value that this microprocessor 401 detects record, be stored in memory internal body or plug-in memory body, if automobile continues to start, the signal emission of transmission circuit 406 stops, but detection process continues, and when being positioned at setting as force value, emission several PRESSURE DATA sign indicating number returns the receptor that is located in the car once more.When if automobile stops, will in a period of time, stopping emission and detecting, go forward side by side into the microprocessor sleep pattern, to reach the power saving effect.

Consult shown in Figure 7, be one to be located at the acceptor circuit of the receptor 200 in the car, it comprises substantially: a microprocessor 201, a signal receiving unit 202, a mnemon 203, an operated key 204, a siren horn 205, a vibroswitch 206, a LCD display panel 207, a LCD back light unit 208 and a GSM﹠amp; GPRS module 209 constitutes.By this acceptor circuit, can receive the signal of being launched from tire pressure detector 100, and tire pressure value is presented at this LCD display panel 207, if any unusually then by siren horn 205 sound that gives a warning, to remind chaufeur, also can be via GSM﹠amp; GPRS module 209 with wireless communication mode, with received signal, is delivered to fleet management center or predetermined accepter, can grasp the up-to-date information of vehicle at any time.

So, be prior art by the circuit shown in Fig. 6, Fig. 7 circuit for detecting figure and the acceptor circuit figure, those skilled in the art can be implemented, so, repeat no more.

The utility model can be by above-mentioned technological means, with the existing electronic type radio tire pressure detecting measuring device that is located at inside tires, overall package is arranged on the outside valve 15, its structure is the pressure sensor 50 that utilizes a chip type quartz conductor to be constituted, directly lead utilizes

conduction thimble

60 and 41 lockings of thimble permanent seat on circuit card 40, forms an air-tight chamber 66 voltage supply power sensors 50 detecting force value, so, can get observed reading accurately; Utilize thimble 60 and thimble permanent seat 41 electric installation simultaneously, when tire pressure detector 100 is locked in valve 15, just power as power supply supply, and automatic switch off when pulling down, the purpose that reaches power saving and prevent to report by mistake.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of electronic type radio tire-pressure detector is characterized in that, comprising:

One first housing, its front inner edge cooperates cranked tire valve and is set as the joint shape that is spirally connected, and this joint lower part forms a downward opening accommodation space;

One detecting control circuit board is provided in a side of in the accommodation space, and its upper face center is provided with a conductive thimble permanent seat;

One pressure sensor, for the semiconductor chip inductor is located in the thimble permanent seat, and lead and circuit for detecting plate are electric connection;

One thimble is made of conductive material, and its hypomere portion is downward opening ducted body, center section part forms flange body, epimere portion side is provided with a through hole and is communicated with ducted body, and in the center section part bottom surface a sheathed insulating washer, hypomere portion ducted body be fixed in the thimble permanent seat and form air-tight chamber;

One antenna plate is electric connection with circuit card;

One battery is located on the antenna plate, and the first type electrode of its end face is contacted with the first type power supply contact of detecting control circuit board, and the second type electrode of bottom surface is electrical communication through an electric-conductor with the second type power supply contact of circuit card;

One second housing, its top is opening-like, and is combined in first housing bottom, to coat aforesaid each element.

2, electronic type radio tire-pressure detector according to claim 1 is characterized in that, described thimble permanent seat root edge is provided with a leakage washer.

3, electronic type radio tire-pressure detector according to claim 1 is characterized in that, described conduction is provided with a leak-proof gasket with the center section part upper limb face of thimble.