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Projector

  • US 9,952,487 B2
  • Filed: 05/03/2016
  • Issued: 04/24/2018
  • Est. Priority Date: 05/05/2015
  • Status: Active Grant
First Claim
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1. A projector, comprising:

  • a casing having a top plate and a bottom plate, the top plate having a plurality of top holes, the bottom plate having a plurality of bottom holes;

    an optical engine disposed in the casing and between the top plate and the bottom plate, the optical engine comprising a light source module, an image-forming module, and a light pipe connected between the light source module and the image-forming module;

    a plurality of heat sinks disposed around the optical engine, each heat sink having a plurality of fins and a plurality of air channels formed between the fins of the plurality of heat sinks, the plurality of heat sinks including a first heat sink, a second heat sink, and a third heat sink respectively disposed on three sides of the light source module, so that the plurality of fins of the plurality of heat sinks are arranged parallel to each other along the three sides, wherein the top holes are aligned and communicate with the bottom holes through the air channels straightly; and

    an auxiliary heat sink disposed on top of the image-forming module, the auxiliary heat sink having a plurality of fins parallel to each other and extending toward the top plate to form a plurality of auxiliary air channels between the fins of the auxiliary heat sink.

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