Structure design of heat radiating fins of LED projection lamp holder

Abstract

The invention relates to a structure design of heat radiating fins of an LED projection lamp holder, comprising the following steps of: mainly arranging at least one light shielding sheet in an extending way at the bottoms of the inner sides of the heat radiating fins; enclosing to form a closed light shielding wall by utilizing a plurality of the adjacent light shielding sheets, thereby enablingthe LED projection lamp holder to achieve the effects of light leakage prevention, dust prevention and insect prevention and enlarging the heat radiating area of the LED projection lamp holder.

Description

technical field [0001] The present invention relates to the structural design of the heat sink of a LED projection lamp holder, especially the heat sink is formed by stretching and forming a light-shielding sheet, so that a closed light-shielding wall is formed on the LED projection lamp holder, thereby preventing light leakage and dustproof Anti-insect and can increase the cooling area. Background technique [0002] Although the known LED projection lamps have low power consumption characteristics, because the heat resistance of the LED illuminant is very low, it is very important to solve the problem of heat dissipation; the heat dissipation lamp holders of the known LED projection lamps, some use mold casting The molded metal heat dissipation housing is very heavy as a whole, and the heat dissipation effect is not as good as expected. It is bulky and expensive, so it is not practical. [0003] The currently known LED projection lamps also use a plurality of heat sinks to...

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Problems solved by technology

[0004] The above-mentioned conventional LED projection lamps surrounded by a plurality of cooling fins, such as Image 6 As shown, since there will be gaps A separated between the heat sinks 10, except that the heat dissipation base 20 can block part of the light leakage, the rest of the light will still directly pass through the gaps A, so there is a problem of light leakage. At the same time, it also causes dust to accumulate inside, which is not only easy to stain the LED projection lamps, but also difficult to remove, and because the light will attract phototropic flying insects to enter, it often adheres to insect corpses and hides dirt, which is very troublesome to use.

[0005] Secondly, the above-mentioned conventional heat sink 10 is made of thin metal sheet, so the outer end surface has sharp burrs, so that the whole lamp is surrounded by sharp blades, and sometimes it is easy to cut people's hands due to carelessness. Still need to improve

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