Heatable mirror

Abstract

The invention provides a heatable mirror. According to the heatable mirror, a heat conduction layer (2) produced from aluminum, copper and the like with very good thermal conductivity is arranged on the back of a lens (1), a PTC heating body (3) is attached to the back of the heat conduction layer, and heat emitted by the PTC heating body (3) can be uniformly conducted to the lens by virtue of the heat conduction layer, so as to realize functions of deicing, defrosting, demisting and the like. Furthermore, the temperature regulation of the PTC heating body is decided by the material characteristics of the PTC heating body, and a temperature sensor and a temperature control circuit are saved, so that the number of electrical apparatus elements is greatly reduced, and the fault rate of the heatable mirror is greatly reduced. Compared with traditional heating elements, the heatable mirror has incomparable advantages that the constant temperature heating is realized, the heating body does not become red, the influence caused by supply voltage is extremely low, and the like; and when reaching a set temperature, the power is automatically decreased to be below 1% of the original power, and the temperature does not need to be maintained by switching on or off a power supply like general heating elements, so that the energy consumption is saved, and meanwhile, the service life of the heatable mirror is greatly prolonged.

Description

technical field [0001] The invention relates to a heatable mirror and a manufacturing method thereof, which are suitable for various mirrors, especially motor vehicle rearview mirrors. Background technique [0002] Mirrors are our daily necessities. Some of their main applications are: ordinary flat mirrors are used to see people's clothing and appearance; car rearview mirrors need to enable drivers to see images of the rear and side of the car, thinking that Its driving provides important reference basis and so on. However, the surface of the mirror is prone to frost, fog or even ice in the bathroom, cold winter, rainy days or rainy seasons. People cannot see the image in the mirror clearly, which affects the normal use of the mirror. Drivers cannot check the side and rear conditions, which can easily lead to traffic accidents. [0003] In CN102271431B, a heating device realizes heating of automobile rearview mirrors and forms appropriate marks through heating guide wires...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a heatable mirror, the purpose of which is to use a PTC heating body to replace the traditional electrothermal film or heat conduction wire to solve the problem that the electrothermal film or heat conduction wire needs a thermistor and a temperature control circuit for temperature control

Then through the heat conduction layer, the transformation from the point heat source of the PTC heating body to the surface heat source is realized, which solves the problem of uniform heating by arranging copper wires and heat conduction wires densely when heating the electrothermal film or heat conduction wire, so that the PTC can be heated body can also achieve uniform heating of the mirror as a whole

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