Mercury-free non-electronic type thermometer with support structure

Abstract

A mercury-free non-electronic type thermometer with a support structure comprises the support structure, a heat conducting layer, a temperature scale layer and a temperature sensing color-changing layer, wherein the heat conducting layer is located on the outer layer of the support structure and comprises a heat sensing portion and a temperature displaying portion, the temperature scale layer is marked on the surface of the temperature displaying portion or at the position above the temperature displaying part, and the temperature sensing color-changing layer is at least formed on the temperature displaying portion to cover the temperature scale layer. The heat sensing portion on the support structure senses the heat contact face of a user to conduct heat conducting flow to the temperature sensing color-changing layer at the temperature displaying portion, and the temperature sensing color-changing layer generates a color-changing area according to the temperature the heat flow corresponds to so as to expose a corresponding temperature scale value. The mercury-free non-electronic type thermometer with the support structure does not contain mercury so as to avoid toxic pollution, and simultaneously greatly reduces cost in comparison with an electronic thermometer. In addition, the mercury-free non-electronic type thermometer with the support structure does not need to be provided with a chemical battery so as to be capable of avoiding causing insufficient power during use due to the fact that the thermometer causes loss of the chemical battery caused by long time no use while avoiding polluting the environment.

Description

technical field [0001] The invention relates to the field of a thermometer; in particular, it relates to a mercury-free non-electronic thermometer. Background technique [0002] In the application field of health care, various materials and methods are widely used to detect temperature and its change. For example, traditional mercury thermometers (Mercury bulb thermometers) use the simple principle that liquids expand when heated and contract when cooled. However, traditional mercury-containing thermometers are highly polluting and toxic, so many countries have banned or restricted their use. [0003] In addition, electronic thermometers have more advantages than traditional glass thermometers. For example, the digital temperature display method can avoid errors in temperature reading; the accuracy and accuracy improved by proper circuit design degrees, can accurately measure and display the temperature to 1 / 10th of Fahrenheit. [0004] However, electronic thermometers are...

AI Technical Summary

Problems solved by technology

[0004] However, electronic thermometers are more expensive than mercury thermometers, and electronic thermometers must be equipped with chemical batteries to provide electronic functions. It is idle for a long time and consumes less power when in use. Therefore, installing a chemical battery such as a lithium battery in the thermometer is neither environmentally friendly nor easy to cause environmental pollution.

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