Main and standby type double tire pressure sensor

Abstract

A main and standby type double tire pressure sensor comprises a body part, a pressure measurement assembly, a sealing layer, a first cover board and a second cover board, wherein the pressure measurement assembly, the sealing layer, the first cover board and the second cover board are arranged on the body part. The pressure measurement assembly is embedded in the sealing layer. An air flow channel leading to the pressure measurement assembly is arranged in the body part. The first cover board and the second cover board are installed on the two sides of the body part in a matched manner so as to seal the pressure measurement assembly. The pressure measurement assembly comprises a circuit board, two power supply batteries connected to the circuit board, a first sensor body, a second sensor body and a communication module. The first sensor body and the second sensor body work in an alternate mode or a repeated measurement mode, it is guaranteed that a user knows related detection information in time, after one sensor body fails, the other sensor body continuously and independently monitors the tire air pressure, normal operation of a tire pressure monitoring system is not affected, and stable operation of the tire pressure monitoring system is double protected. By the adoption of the main and standby type double tire pressure sensor, a glue injection manner is further adopted for sealing an air way, the body part is integrally formed through an aluminum alloy, and the reliability of the product is further improved.

Description

technical field [0001] The invention relates to a tire pressure measuring device, in particular to an active and standby dual tire pressure sensor. Background technique [0002] At present, most high-pressure automobile tires are made of an inner tube and a tire, and the tire sensor is installed on the air nozzle on the outside of the tire. When the vehicle is running, the tire environment is very harsh, and at the same time it is subjected to high air pressure, high centrifugal force, high temperature, high humidity, strong vibration and dust. Tire sensors should detect tire pressure and temperature in real time, and give early warnings of tire leaks, low air pressure, high air pressure, and high temperature, so as to prevent tire blowouts and ensure driving safety and economical driving. [0003] The existing tire sensor uses a piezoelectric sensor chip, and the tire pressure value is converted into a voltage signal by the piezoelectric sensor, which is converted into a d...

AI Technical Summary

Problems solved by technology

When the sensor chip fails, tire pressure and temperature cannot continue to be effectively monitored

At this time, if the tire pressure, overheating, or air leakage, low pressure, etc. occur, the tire pressure monitoring system will not be able to alarm in time, which will affect driving safety

In addition, the existing tire pressure sensor is not tightly sealed, which is prone to air leakage and increases potential safety hazards

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