Projector automatic dustproof system

Abstract

The invention discloses a projector type automatic dustproof system. The system comprises a projector front cover, a lens cover and a stepper motor. The inner side of the projector front cover is equipped with a lens hole in a position relative to a projector upper lens. Parallel guide rails opposite to each other are disposed on two sides of the lens hole. The lens cover includes a plate body. The plate body is provided with parallel end edges. The plate body is connected to the guide rails through the end edges. The end edge of one side of the plate body is equipped with a tooth structure that protrudes from the plate body. The tooth structure is connected with the stepper motor. The lens cover and an air outlet baffle plate are driven through the miniature stepper motor and transmission of a rack and pinion, therefore, when a machine is working, the lens cover and an air outlet channel are opened automatically, and when the machine is shut down, the lens cover and an air outlet channel are closed automatically. In this way, the machine can be enclosed and have a dustproof function, the service life of the machine can be prolonged, and the maintenance cost of the machine can be reduced.

Description

technical field [0001] The invention relates to an automatic dustproof system for a projector. Background technique [0002] At present, projectors are widely used in the education industry, business occasions and personal home use. In various environments, especially where there is a lot of dust and wind and sand, foreign matter such as dust, bugs, and even water droplets will enter and accumulate on the lens surface and ventilation holes of the machine, which will pollute the lens and the internal optical components of the projector. The circuit board, after a long time, will seriously affect the picture quality, or cause damage to the circuit board and cooling system. [0003] Generally, the air inlet of the projector can be equipped with a filter to prevent dust, but the lens and the air outlet must be open when working. There is no way to install a similar protective filter to prevent dust. The projector used on the ceiling, It's also difficult to keep the lens cap an...

AI Technical Summary

Problems solved by technology

In various environments, especially where there is a lot of dust and wind and sand, foreign matter such as dust, bugs, and even water droplets will enter and accumulate on the lens surface and ventilation holes of the machine, which will pollute the lens and the internal optical components of the projector. Circuit board, a long time will seriously affect the picture quality, or cause damage to the circuit board and cooling system

[0003] Generally, the air inlet of the projector can be equipped with a filter to prevent dust, but the lens and the air outlet must be open when working. There is no way to install a similar protective filter to prevent dust. The projector used on the ceiling, It's also hard to keep the lens cap and drape on at all times

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