Temperature measuring system and method of electric heating glass

Abstract

The invention relates to the field of defrosting and demisting of a glass product, especially relates to a temperature measuring technology of electric heating glass, and specifically provides a temperature measuring system and method of electric heating glass by use of a resistance temperature coefficient. The temperature measuring system of the electric heating glass comprises a glass plate, an electric heating element and a power source, and further comprises a current measuring device or a resistance measuring device, wherein the current measuring device or the resistance measuring device can measure current I or resistance R of the electric heating element after energization, and the surface temperature of the glass plate provided with the electric heating element is equal to the temperature T of the electric heating element. According to the invention, arrangement of multiple temperature sensors on the surface of the glass can be prevented, and the cost is decreased; the measured temperature is the overall equivalent temperature of the glass, and the overall temperature distribution of the glass can be effectively reflected; the glass appearance and the sight of a person in a vehicle or an indoor person are not affected, when the system and method are applied to an automobile front windshield, no interference is caused to the sight of a driver, and the automobile driving safety is improved.

Description

Technical field: [0001] The invention relates to the field of defrosting and defogging of glass products, in particular to the temperature measurement technology of electrically heated glass, and specifically provides a system and method for measuring the temperature of electrically heated glass by using the temperature coefficient of resistance, and also provides a Automatic defrosting and defogging automotive glass system and methods for defogging and defrosting. Background technique: [0002] In cold weather, car glass and architectural glass are often prone to frost; or when the humidity in the car and indoors is high, and the temperature and the external environment are different, the car glass and architectural glass are also prone to fog; This will affect the observation line of sight in the car and indoors and their appearance, especially the car front windshield that provides the driver with a good view. If frost and fog occur on it, it will seriously affect the driver's...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an electric heating system for the disadvantages of the existing technology that significantly affect the appearance and optical performance of the car or cannot truly and accurately reflect the temperature of the main viewing area of ​​the glass when measuring the temperature of the electrically heated glass. The temperature measurement system and method of glass also provide an automobile glass system capable of automatic defrosting and defogging, as well as defogging and defrosting methods

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