CN2296285Y - Dynamic monitor for temperature and air pressure of automobile tyre - Google Patents

Abstract

The utility model relates to a monitoring device for temperature and air pressure of automobile tyre in motion. The utility model is characterized in that the utility model is composed of a temperature sensor, an air pressure sensor, an electric brush, a contact head, an electrical signal processing device, a digital display, a sound and light alarm device, etc. When the air pressure and the temperature of a tyre generate changing, the air pressure sensor and the temperature sensor generate corresponding electrical signals which are processed by the electrical signal conversion and processing device. When the temperature and the air pressure exceed a regular change range, the sound and light alarm device reminds a driver to take corresponding measures in time to avoid tyre explosion dangers. The utility model has the advantages of simple structure, comprehensive and reliable performance and low cost, and is an ideal monitoring and protecting device for an automobile tyre.

Description

Automobile positioner temperature, air pressure dynamic monitor

The utility model relates to the device of prevention motor tire because of air pressure or the improper explosion of temperature exceeding standard.

Now disclosed apparatus for protecting tyres, as mechanical, sensitivity is low, and reliability is relatively poor, and the structure of electronic type is relatively complicated.Chinese patent ZL92231952.9 discloses a kind of displaying alarm of monitoring tire pressure, principal character is to adopt the flexible axle backguy that the signal of baroceptor is passed to electromagnetic sensor, and through the A/D data transfer, but have following shortcoming: scanning is that change with the speed of a motor vehicle changes, and therefore measures, shows and be interrupted; The magnet piece probe positions of flexible axle end is subject to the automobile sport influence, and same signal is adopted the two-stage sensor passes, and precision is low, and reliability is relatively poor; There is not the monitoring of realization to important gas parameters of temperature in the tire.

The purpose of this utility model is for a kind of monitoring device is provided, it can not only show tire internal gas pressure, temperature value under the vehicle stationary state, can also be in vehicle traveling process tire internal gas pressure, temperature value be exceeded standard and in time give the alarm, remind the driver to take corresponding measure, the releasing danger of blowing out reaches safety, reduces the purpose of economic loss.

The purpose of this utility model is achieved in that the dynamic monitoring device of tire by baroceptor 20, temperature sensor 19, and brush 15, brush contact 16 and electric signal conversion processing unit 12 and acoustic-optic alarm 14 are formed.For the sensor in tire 19,20 is drawn signal wires 8, must do suitably to improve to the original packing ring of tire tube valve, improve the back as packing ring 6.Like this, this monitoring device has the function that air pressure, temperature are carried out continuous monitoring simultaneously.Strain-gauge 21 in the baroceptor 20 is attached on the elastic memberance 23 by insulating barrier 22, drawing two leads 18 from strain-gauge 21 passes sealing member 17 and links to each other with external circuit, sealing member 17 and elastic memberance 23 all are fixed on the stiff case 20, seal and formation baroceptor 20.Baroceptor 20 tops are with temperature sensor 19, the below is fixed on the tire tube valve flange 1 by two union levers 5, introduce power lead 9 from upper gasket 7 between tire tube valve flange 1 and the nut 4, outside the tire rubber 2 and lower gasket 6, draw signal conductor 8, lead 8,9 and signal conversion processes device 12 join.Signal conversion processes device 12 comprises direct supply 10, now widely used A/D translation data processing equipment 11, and data display equipment 13 also joins with the brush contact 16 that is fixed on axletree simultaneously; The brush 15 that is complementary with contact 16 is fixed on the vehicle body, and contact 16 and sensor 19,20 and signal conversion processes device 12 rotate with axletree together, and brush 15 constitutes the loop by lead and acoustic-optic alarm 14.

The working process of this monitoring device is achieved in that baroceptor 20 and temperature sensor 19 are fixed on the tire tube valve flange 1 by union lever 5.There is an atmospheric pressure value in gas in the tire, and this air pressure makes the elastic memberance 23 of baroceptor 20 produce certain distortion, thereby makes strain-gauge 21 have corresponding resistance value.When pressure variation, elastic memberance 23 distortion change, and cause that strain-gauge 21 resistance values change, and lead 18 is passed to signal conversion processes device 12 with this signal.In like manner, when temperature change, the resistance value of temperature sensor 19 changes, and signal is passed to signal conversion processes device 12 by lead, wherethrough reason back shows readings by digital display 13, simultaneously according to whether under-voltage, superpressure, overtemperature and send control acoustic-optic alarm 14 signal, this signal is given brush contact 16, and the acoustic-optic alarm 14 of brush 15 to the operator's compartment in time reminds navigating mate to take corresponding measure.

The utility model has the advantages that: adopt air pressure, temperature sensor that roughly situation of tire internal gas pressure, temperature can be provided in vehicle operating continuously, adopt digital display can when parking or aerating, more accurately understand the othermohygrometer value; Two sensors is put into tire and is directly taked signal, not influenced by automobile sport, thus stable work in work, accurately and reliably; Adopt brush and contact to realize that signal passes to the relative fixed part from movement parts, structure is simplified more.

Fig. 1: temperature, air pressure dynamic monitor overall pattern

Fig. 2: the upper and lower packing ring of original tire valve improves figure

Claims (3)

1. monitor tire pressure temperature dynamic monitoring device for one kind, it comprises a baroceptor 20, this baroceptor is attached on the elastic memberance 23 by insulating barrier 22 by strain-gauge 21, drawing two leads 18 from strain diaphragm 21 passes sealing member 17 and links to each other with external circuit, sealing member 17 and elastic memberance 23 all are fixed on the stiff case 20, and sealing constitutes baroceptor 20; Also comprise acoustic-optic alarm 14 and the electric signal conversion processing unit 12 that constitutes by direct supply 10, A/D translation data processing equipment 11, data display equipment 13, and suitable lead; It is characterized in that also having adopted temperature sensor 19; Temperature sensor 19 and baroceptor 20 place in the tire, simultaneously temperature, air pressure are monitored; Drawing the packing ring 6 of signal conductor 8 after improving from temperature sensor 19, baroceptor 20 passes to signal conversion treatment device 12 and handles, and determination data shown on telltale 13, simultaneously alerting signal is passed to contact 16 by brush 15, arrive the acoustic-optic alarm 14 of operator's compartment.

2. monitoring device according to claim 1, its feature are that also tire tube valve rubber cradle 6 is to be provided with lead in the General Purpose Rubber bead interior, can transmit electric signal.

3. monitoring device according to claim 1, its feature is that also the brush 15 that is complementary with contact 16 is fixed on the vehicle body, contact 16 and sensor 19,20, signal conversion processes device 12 rotate with axletree together, and brush 15 constitutes the loop by lead and acoustic-optic alarm 14.

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