Abstract: The invention provides an optical engine module and a projector including the optical engine module. The optical engine module includes a casing, a light valve, a prism assembly and a fan assembly. The casing has an assembly port. The light valve is disposed at the assembly port and defines an accommodating space with the casing. The prism assembly is disposed in the accommodating space, and the light valve is configured to convert an illumination beam from the prism assembly into an image beam. The prism assembly includes a first region and a second region. The first region includes a light incident surface of the prism assembly, and a temperature of the second region is higher than a temperature of the first region. The fan assembly is disposed in the accommodating space. Airflow provided by the fan assembly circulates in the accommodating space.

Abstract: The invention provides a heat dissipating module configured to dissipate heat of at least one heating element of a projection device. The heat dissipating module includes a first radiator, a second radiator, a pipe, and at least one fan. The second radiator is disposed opposite to the first radiator. The heating element, the first radiator, and the second radiator are connected to each other through the pipe to form a loop. A working fluid is configured to be filled in the pipe, and the working fluid flows through the first radiator after flowing through the second radiator for heat exchange, and the working fluid flowing into the first radiator flows to the heating element for cyclic heat dissipation after heat exchange again through the first radiator. The fan is configured between the first radiator and the second radiator.

Abstract: The invention provides a heat dissipation system and a projection device including the same. The heat dissipation system includes a case, a plurality of liquid cold plates, a first radiator and a second radiator. The case includes a main air inlet and an air outlet. The liquid cold plates are disposed in the case. The first radiator is disposed in the case and beside the main air inlet. The second radiator is disposed in the case and beside the air outlet. The liquid cold plates, the first radiator and the second radiator are connected with one another. The invention has a good heat radiating effect.

Abstract: The invention provides an optical engine module and a projector including the optical engine module. The optical engine module includes a casing, a light valve, a prism assembly and a fan assembly. The casing has an assembly port. The light valve is disposed at the assembly port and defines an accommodating space with the casing. The prism assembly is disposed in the accommodating space, and the light valve is configured to convert an illumination beam from the prism assembly into an image beam. The prism assembly includes a first region and a second region. The first region includes a light incident surface of the prism assembly, and a temperature of the second region is higher than a temperature of the first region. The fan assembly is disposed in the accommodating space. Airflow provided by the fan assembly circulates in the accommodating space.

Abstract: The invention provides a heat dissipating module configured to dissipate heat of at least one heating element of a projection device. The heat dissipating module includes a first radiator, a second radiator, a pipe, and at least one fan. The second radiator is disposed opposite to the first radiator. The heating element, the first radiator, and the second radiator are connected to each other through the pipe to form a loop. A working fluid is configured to be filled in the pipe, and the working fluid flows through the first radiator after flowing through the second radiator for heat exchange, and the working fluid flowing into the first radiator flows to the heating element for cyclic heat dissipation after heat exchange again through the first radiator. The fan is configured between the first radiator and the second radiator.