Projection device

The invention discloses a projection device, and relates to the technical field of projection equipment. The projection device comprises a shell, an optical engine module and a plurality of partition pieces. The optical engine module is arranged in the shell and comprises a light source module, a fluorescent wheel module and a light valve module; the plurality of blocking pieces are arranged in the optical engine module at intervals so as to divide the interior of the optical engine module into a light source area, a fluorescent wheel area and a light valve area; wherein the light source module is located in the light source area, the fluorescent wheel module is located in the fluorescent wheel area, and the light valve module is located in the light valve area; and a heat dissipation flow channel is formed among the light source area, the fluorescent wheel area, the light valve area and the shell. The heat crosstalk between the areas where the two adjacent heat sources are located can be reduced to the minim