Cooling system for a projector

摘要

An air duct is secured in a projector. The air duct is configured to help a fan module to cool a light emitting module. The fan module defines an air vent. Each side of the light emitting module defines an opening. The air duct defines a hollow cavity. Two ends of the cavity respectively define an air inlet and an air outlet. The air inlet is aligned with the air vent and the air outlet is aligned with the opening. The airflow passes through the air vent and the air inlet to enter into the cavity. Then, the airflow passes through the air outlet and the opening to enter into the light emitting module. Finally, the airflow goes out from another opening to dissipate the heat of the light emitting module.

主权项

1. A cooling system for a projector, comprising:
a fan module comprising a fan and a bracket defining an air vent; an air duct comprising a hollow cavity, the hollow cavity defining an air inlet and an air outlet, the air inlet being defined at an air inlet plane which is substantially perpendicular to the air outlet being defined at an air outlet plane; and a light emitting module fluidically coupled to the air outlet; wherein the fan drives airflow through the air vent and the air inlet into the hollow cavity, and further through the air outlet into the light emitting module to cool the light emitting module, the air duct comprises a base plate, the bracket is secured on the base plate, the air duct also comprises a guiding portion connected on one end of the base plate and a securing portion connected on another end of the base plate, the hollow cavity is located on the guiding portion, a connector of the projector is configured to be secured in the securing portion, the securing portion defines a through hole, a plurality of protrusions are located at the two sides of the through hole, the connector is configured to pass through the through hole, and the protrusions are configured to secure the connector in the through hole.