Printed-type temperature sensor and evacuation sign provided with same

Abstract

The invention belongs to the technical filed of firefighting emergency safety indication devices and particularly relates to a printed-type temperature sensor and an evacuation sign provided with the same. The printed-type temperature sensor comprises a temperature sensing module, a control circuit board and a sound alarm, wherein a processing module is arranged on the control circuit board; the temperature sensing module is connected with the processing module; the processing module is connected with the sound alarm; when the temperature sensing module senses a certain temperature, signals are fed back to the processing module, and the processing module controls the sound alarm to give an alarm; and the temperature sensing module comprises a carrier, thermosensitive ink printed on the carrier through a screen printing mode and a conductive ink electrode, and the conductive ink electrode is connected with the processing module on the control circuit board. The printed-type temperature sensor is made by adopting a printing mode, the structure is simple, the making is convenient, the temperature is flexible to sense, and the temperature sensor can be attached to a dead angle at home or in an office area, thereby preventing fire.

Description

technical field [0001] The invention belongs to the technical field of fire emergency safety indicating devices, and in particular relates to a printed temperature sensor and an evacuation sign using the temperature sensor. Background technique [0002] Polymer-based positive temperature coefficient (PTC) materials, as a smart polymer material in conductive polymer composite materials, are used in electronic fields such as heating materials, overheating or overcurrent protectors due to their special temperature response capabilities, It is mainly composed of resin matrix, nano conductive fillers such as carbon black, metal particles, etc., and some additives. By changing the types of matrix and fillers and the amount of fillers, the performance of the material can be adjusted in a wide range. The temperature sensor is used as its application One of them has received widespread attention. A temperature sensor is a sensor that senses temperature and converts it into a usable ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a printed temperature sensor to solve the problems that the existing temperature sensor requires a certain space for installation, the wiring is complicated, certain technical personnel are required for installation, the installation requirements are high, and the installation and production costs are high.

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