CN2248656Y

CN2248656Y - Signalling device for tyre of automobile for explosion-proof or lack of pressure

Info

Publication number: CN2248656Y
Application number: CN 96225558
Authority: CN
Inventors: 云献峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-11
Filing date: 1996-03-11
Publication date: 1997-03-05
Anticipated expiration: 2006-03-11

Abstract

The utility model discloses an alarming device for explosion prevention and pressure shortage for an automobile tyre, which is composed of a transmitting circuit and a receiving circuit. A sensor of the transmitting circuit transmits pressure shortage and temperature exceeding signals which are received by the sensor of the transmitting circuit to an encoding block to carry out digital encoding. Carrier frequencies are transmitted to the receiving circuit in a cab. The signals and the frequencies are magnified in a detecting mode, are shaped in a gating mode, are decoded in a digital mode, are decoded, and are displayed in a digital mode, and the utility model simultaneously carries out acoustic-optical alarm. When tire temperature is raised to exceed the standards or the intensity is dropped to exceed the standards caused by road surface friction, brake or other reasons, the utility model can carry out acoustic-optical alarm and indication. When the pressure of a tire is insufficient caused by various reasons, and the existing inflating pressure of the tire is reduced by one seventh, the utility model can alarm and indicate the tire with insufficient pressure to prevent the tire from being exploded and accidents from generating.

Description

The explosion-proof undervoltage alarm of motor tire

The utility model relates to a kind of instrument that is used for explosion of motor tire overtemperature and tire flat warning.

Tire and ground-surface friction in the running car, add frequent brake, tyre temperature is raise, strength degradation, because of tyre temperature raises, air pressure also rises thereupon, high bearing capacity descends and causes the generation of tire blow-out accident, automobile leaks gas because of tire is mechanically damaged under steam, and the accident that explosion is overturned as can not in time finding often to cause another tire not carry two tyre loads happens occasionally, and usually causes enormous economic loss.Still do not inquire the manufacturer of such annunciator and the report of newspaper publication at present both at home and abroad.

The purpose of this utility model provide a kind of can be in time to tyre underpressure, the indication of reporting to the police that heats up, the explosion-proof undervoltage alarm of the motor tire of avoiding tire blow-out to have an accident.

The purpose of this utility model is achieved in that the explosion-proof undervoltage alarm of motor tire, form by transmission circuit and acceptor circuit, 12 of the sensor QY of described transmission circuit and encoding block IC ' ED5026,13 pin link to each other, 17 pin of IC ' ED5026 link to each other with the base stage of aerotron VT1 ' through R1 ', the collecting electrode of VT1 ' links to each other with emitting antenna W ', transmission circuit is powered by the 6V power supply, its receiving wire of described acceptor circuit W is through capacitor C 1, C2, the harmonic circuit that C3 forms, link to each other with aerotron VT1 base stage through capacitor C 8 again, the collecting electrode of VT1 is through receiving wire W, resistance R 3, capacitor C 7 links to each other with the base stage of aerotron VT2, the collecting electrode of VT2 links to each other with 5 pin of IC1LM358,7 pin of IC1LM358 link to each other with 14 pin of IC2ED5027, the mouth pin 10 of IC2ED5027,11,12,13 through resistance R 11, R12, R13,1 of R14 and IC3CD4511,2,6,7 pin link to each other, the 9-15 pin of IC3CD4511 links to each other with the LED charactron through R15-21,17 pin of ED5027 link to each other with 2 pin of music block KD9300 through resistance R 23,4 pin of KD9300 link to each other through the base stage of resistance R 24 with aerotron VT3, aerotron VT3, the complementary amplifier that VT4 forms links to each other with loudspeaker BL.

The utility model raises to the tyre temperature that causes owing to tire and ground-surface friction, brake and other reason or intensity reduces all can in time carry out the sound and light alarm indication when overproof, the tyre underpressure that a variety of causes is caused, press the minimizing seven/under-voltage tire of indication of can reporting to the police for the moment in the former inflation of tire, avoid tire blow-out and accident to take place, transmission circuit of the present utility model in addition adopts the 6V power supply, not power consumption when not reporting to the police, casing is totally-enclosed, dustproof and waterproof.

Be described in detail technical solution of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is the block scheme of the utility model transmission circuit.

Fig. 2 is the block scheme of the utility model acceptor circuit.

Fig. 3 is the schematic circuit diagram of the utility model transmission circuit.

Fig. 4 is the schematic circuit diagram of the utility model acceptor circuit.

As figure, the explosion-proof undervoltage alarm of motor tire, form by transmission circuit and acceptor circuit, the sensor QY of described transmission circuit is under-voltage with its reception, the overtemperature signal send encoding block 1C1 ' ED5026, encode, the coding back is exported by 17 pin, send the base stage of the aerotron VT1 ' of modulating oscillation circuit through R1 ', launch the frequency modulation code signal by emitting antenna W ', transmission circuit is powered by the 6V power supply, the received signal of its receiving wire of described received signal W is through capacitor C 1, C2, the harmonic circuit that C3 forms, be input to the base stage of aerotron VT1 again through capacitor C 8, through the VT1 amplification demodulator, export by collecting electrode, through receiving wire W, resistance R 3, capacitor C 7 is input to the base stage of aerotron VT2, export by collecting electrode through the amplification of VT2 gating, be input to 5 pin of 1C1LM358, amplifying shaping through LM358 is exported by 7 pin, be input to 14 pin of 1C2ED5027, through the ED5027 digital decoding, by with the corresponding input end pin (10 of 1C1 ' ED5026,11,12,13 pin) output, through resistance R 11, R12, R13, R14 is input to CD4511, decipher through CD4511, be input to the LED charactron through R15-21 again, be input to 2 pin of music block KD9300 by 17 pin of ED5027 through resistance R 23, by the 4 pin output of KD9300, be input to the base stage of aerotron VT3 through resistance R 24, via aerotron VT3, loudspeaker BL is sent in the complementary amplifier output that VT4 forms.

This annunciator is experienced under-voltage by the under-voltage sensor QY of overtemperature or is sent instruction during extraordinary high temperature immediately, be transmitted into acceptor circuit in the operator's compartment through digital coding, carrier frequency, amplify, amplify shaping, ED5027 digital decoding, CD4511 decoding, the digital demonstration of LED through detection amplification, gating, the while sound and light alarm, the numeral that shows by number i.e. high temperature or under-voltage tire as can be known, in time handle, avoid the generation of accident.

Receptor of every automobile with the ED5027 decoding, has 7 projectors, on every tire one with ED5026 coding, encoding block has 12 kinds of states, the under-voltage demonstration of first, 7 tires are shown 7 kinds of states respectively, and anti-explosion alarming has two kinds of alarm condition to show, also has three kinds of states stand-by.

Claims

1, the explosion-proof undervoltage alarm of a kind of motor tire, form by transmission circuit and acceptor circuit, it is characterized in that 12 of the sensor QY of described transmission circuit and encoding block IC ' ED5026,13 pin link to each other, 17 pin of IC ' ED5026 link to each other with the base stage of aerotron VT1 ' through R1 ', the collecting electrode of VT1 ' links to each other with emitting antenna W ', transmission circuit is powered by the 6V power supply, its receiving wire of described acceptor circuit W is through capacitor C 1, C2, the harmonic circuit that C3 forms, link to each other through the base stage of capacitor C 8 again with aerotron VT1, the collecting electrode of VT1 is through receiving wire W, resistance R 3, capacitor C 7 links to each other with the base stage of aerotron VT2, the collecting electrode of VT2 links to each other with 5 pin of IC1LM358,7 pin of IC1LM358 link to each other with 14 pin of IC2ED5027, the mouth pin 10 of IC2ED5027,11,12,13 through resistance R 11, R12, R13,1 of R14 and IC3CD4511,2,6,7 pin link to each other, the 9-15 pin of IC3CD4511 links to each other with the LED charactron through R15-21,17 pin of ED5027 link to each other with 2 pin of music block KD9300 through resistance R 23,4 pin of KD9300 link to each other through the base stage of resistance R 24 with aerotron VT3, aerotron VT3, the complementary amplifier that VT4 forms links to each other with loudspeaker BL.