Photochromic Film with Automatic Light Adjustment for High-rise Building Windows

With the further development of China's reform and opening up, buildings are getting higher and higher. In these high-rise buildings, most of the windows are floor to floor windows to increase the indoor lighting. However, because these glasses generally do not have the function of adjusting the light, if the residents want to adjust the light, they usually install a group of curtains on the windows, and adjust the opening and closing of the windows to adjust the light. However, by installing curtains to adjust the light, not only the process increases and increases the cost, but also the users need to manually adjust the opening and closing of windows, which is not convenient.

To solve the above technical problems, the technical scheme of the utility model is as follows:
The utility model relates to a floor window with high intensity and automatic light adjustment for high-rise building windows, which comprises a window frame and an electrically controlled color changing glass, which is characterized in that: it also comprises a power supply, a control switch, a single-chip microcomputer and a light sensor. The electrically controlled color changing glass comprises two layers of glass soaked in high temperature potassium nitrate molten salt and a color changing layer between two layers of glass. The color changing layer is a bistable liquid crystal color changing layer and two glasses. The inner surface of the layer is equipped with transparent electrode membrane. The power supply, control switch and transparent electrode membrane are connected in series. The light sensor is located at the outside of the window frame. The light sensor is connected with the single-chip microcomputer, and the single-chip microcomputer is connected with the control switch.

Further, the outer surface of the two layers of glass layer is coated with a nano electrostatic coating, and a photochromic film is pasted between the glass layer and the nano electrostatic coating. The photochromic film is a tungsten oxide titanium dioxide zinc oxide composite film.

The utility model has the advantages that:

1.The two glass layers are soaked in high temperature molten potassium nitrate, the potassium ion with larger ion radius displaces the sodium ion with smaller ion radius, and a surface pre compression stress layer with certain exchange depth is formed on the glass surface, which effectively improves the glass's energy to resist the impact of other objects; the bistable liquid crystal is twisted under the state of power on, and changes between transparency and opacity. Its transparency and transparency, the bistable liquid crystal in the power off state will remain in a specific twist state, by controlling the on / off of the bistable liquid crystal layer, you can adjust the light of the window, easy to adjust.

2.The external surface of the two-layer glass layer is coated with nano electrostatic coating, which can make the pollutants fall off in the case of rain and running water, and has excellent anti dust effect. It can make the glass of the floor window play the self-cleaning function for a long time, greatly reducing people's workload, and has great practicability

3.The photochromic film is a combination of tungsten oxide, titanium dioxide, and zinc oxide, which has the function of automatically changing the transmittance and shading coefficient. The preparation process is simple, the cost is low, and the photochromic effect is good. Spiral pyran compounds, azo compounds, and fused ring aromatic compounds are toxic and flammable organic thin films. Oxides such as W03 are not flammable and have high safety.

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