Optical engine module

A projection apparatus, comprising:

• a first casing, having a first enclosed space;
• a light source module, disposed at the first casing;
• a phosphor wheel, disposed in the first enclosed space, wherein the light source module is configured to emit a light beam passing through the phosphor wheel;
• a cooling fan, disposed in the first enclosed space and having an airflow outlet, wherein the airflow outlet and the phosphor wheel are at least partially overlapped with each other along an airflow exiting direction of the cooling fan;
• and
• a heat-dissipating module, comprising a first heat-dissipating part, a heat-guiding part and a second heat-dissipating part, wherein the first heat-dissipating part is disposed in the first enclosed space, the second heat-dissipating part is disposed outside the first enclosed space, the heat-guiding part is connected between the first heat-dissipating part and the second heat-dissipating part, the phosphor wheel is positioned between the airflow outlet and the first heat-dissipating part, and the phosphor wheel and the first heat-dissipating part are at least partially overlapped with each other along the airflow exiting direction;
• and
• a second casing, connected to the first casing and having a second enclosed space;
• a plurality of optical assemblies, disposed in the second enclosed space;
• a light valve, disposed in the second enclosed space;
• and
• a projection lens, disposed at the second casing for projecting an imaging light beam converted and obtained from the light valve.