Touch switch is an emerging product of modern technological development, in addition to the most common wall touch switch, touch switch is also used in a variety of lamps and lanterns, bathroom cabinet mirrors, bathroom mirrors, lighted mirrors, mirror paintings and shower screens. Among them, the mirror touch switch can be installed in the makeup and bathroom mirrors, the use of touch sensor chip principle to control the mirror lights, with safe and convenient operation, more intelligent and beautiful and other traditional switch incomparable advantages. At present, mirror touch switch has been widely used in intelligent home, high-grade hotels, exhibition halls, etc., play a good role in decoration.
The touch switch is mainly used to adjust the brightness of the mirror backlight, control heating and defogging and intelligent connection adjustment and other functions.
Due to the presence of reflective silver-plated layer conductor film on the glass mirror surface. This application in capacitive touch is no way to realize, need to touch the key area parts of the polishing isolation, in order to achieve normal touch. Commonly polished structures are square and round. Polished area to be polished clean, and the edge of the large silver-plated layer area completely isolated; polished area and the large silver-plated layer between the spacing between the larger the better, at least to ensure that more than 2mm. The larger the polished area of the graphic on the screen print, the better, the higher the sensitivity will be.
The principle of the mirror touch switch is through the parts of the human body (such as fingers) close to the mirror glass engraved position of the capacitance generated by the mirror through the back of the mirror engraved isolation of the metal passed to the chip, by the chip to control the LED strip and other electrical appliances on and off, as well as other functions of the operation, in the process of the touch switch work, do not need to be directly in contact with the high voltage.
Mirror touch keys use capacitive sensing technology. We know that the human body is electrically conductive, and the circuitry below the capacitive sensing key can generate a uniformly distributed electrostatic field on the surface of the mirror, when our finger moves to the top of the key symbol, the capacitance of the surface of the mirror symbol changes, and the relevant circuitry at the back of the mirror bases on this change in capacitance to make a judgment and realize the intended function. Capacitive buttons are very easy to use, just touch, no need to press hard, can be operated.