Waste heat utilization projector heat dissipation system based on thermoelectric conversion

Abstract

A waste heat utilization projector heat dissipation system based on thermoelectric conversion comprises a projector bulb, a direct current fan, a first thermoelectric conversion material, a second thermoelectric conversion material and a third thermoelectric conversion material, wherein the hot end of the first thermoelectric conversion material, the hot end of the second thermoelectric conversion material and the hot end of the third thermoelectric conversion material are connected to the upper surface of the projector bulb, the rear surface of the projector bulb and the lower surface of the projector bulb respectively, the direct current fan is arranged on the left side of the projector bulb, and the electric energy generated by the first thermoelectric conversion material, the second thermoelectric conversion material and the third thermoelectric conversion material is conveyed to the direction current fan through wires. The waste heat utilization projector heat dissipation system based on thermoelectric conversion is reasonable in design, simple in structure, and capable of guaranteeing electric supply of the heat dissipation system of the projector bulb and protection of the projector bulb under the condition of improper manual operation.

Description

technical field [0001] The invention belongs to the technical field of thermoelectric conversion, and specifically relates to a projector heat dissipation system that utilizes waste heat generated by projector bulbs to generate power, and then uses the electric energy for the bulb cooling fan. Background technique [0002] At present, projectors have been widely used in homes, offices, schools and entertainment venues. LCD (Liquid Crystal Display) liquid crystal projectors can be divided into liquid crystal panel projectors and liquid crystal light valve projectors. The former is the main product in the projector market. Polysilicon LCD panels are not resistant to high temperatures. Newer models are equipped with temperature sensors near the LCD panel. When the air inlet and dust filter are blocked and the airflow is not smooth, the temperature inside the projector will rise rapidly. Alarm and immediately cut off the light source circuit. Projectors have very strict requir...

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Problems solved by technology

However, since the device is composed of evaporator, expansion machine, transmission device, condenser and heat storage device, and requires a working medium, it is not suitable for use in the special narrow space of the projector.

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