Heat dissipation device for high-pressure mercury lamp of projector

Abstract

The invention relates to a heat dissipation device for a high-pressure mercury lamp of a projector. An air outlet of an axial flow fan and an opening at the large end of a third air guide cover are oppositely arranged; an airflow from the air outlet of the axial flow fan enters the third air guide cover; the angle of the large end of the third air guide cover is greater than the angle of the small end of the third air guide cover; an air inlet is positioned in the small end of the third air guide cover; when the airflow flows out through the air inlet in the third air guide cover, the flow speed and the air pressure are increased; the air outlet is just aligned to the second end on a lamp tube; therefore, the heat conduction speed at the second end is increased; the heat dissipation efficiency at the second end is relatively high; the airflow enters a first air guide cover through the air inlet; the small end of the first air guide cover is closed; the airflow only can flow out through the opening at the large end of the first air guide cover; the opening at the large end of the first air guide cover and a lampwick on the lamp tube are oppositely arranged; the airflow from the opening of the large end of the first air guide cover directly blows the lampwick; therefore, air at the lampwick and the first end is accelerated to flow; and thus, the heat conduction speed at the lampwick and the first end is increased.

Description

technical field [0001] The invention relates to the technical field of high-pressure mercury lamps, in particular to a heat dissipation device for high-pressure mercury lamps of projectors. Background technique [0002] In projector manufacturing technology, it is often necessary to use a high-pressure mercury lamp light source with a power of several thousand watts or higher. A higher power light source means greater exposure yield, which is conducive to improving the manufacturing efficiency of the projector. In order to ensure the normal working temperature of the light source, the high-pressure mercury lamp tube needs to be cooled. The traditional high-pressure mercury lamp tube has a first end, a wick, and a second end. The second end of the lamp tube generates more heat. The traditional high-pressure mercury lamp cooling device cools the entire high-pressure mercury lamp, which is not targeted. The heat dissipation at the second end of the lamp tube is not complete, a...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: in order to overcome the traditional high-pressure mercury lamp cooling device that cools the entire high-pressure mercury lamp, which is not targeted, the heat dissipation at the second end of the lamp tube is not complete, the heat dissipation effect is poor, and it is easy to cause Burning of the entire lamp tube affects the use of the high-pressure mercury lamp and the use of the projector made of the high-pressure mercury lamp. A heat dissipation device for the high-pressure mercury lamp of the projector is provided

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