Patent ID: 9173323
Filing Date: 2015-10-27
Classification: H05K

Abstract:
1. A heat dissipation assembly mounted in an enclosure of a network device, the enclosure defining an air flue running through an inside of the enclosure and an outside of the enclosure, the heat dissipating assembly comprising: a fan module received in the air flue, and comprising a first bracket and a plurality of fans fixed with the first bracket; and a damper module secured in a first end of the air flue facing the inside of the enclosure, and the damper module comprising a frame and a plurality of vanes located in the frame; wherein the fan module comprises a first board secured in a bottom of the plurality of fans, and a second board secured in the enclosure, wherein the first board slides along the second board and is rotated relative to the second board to reverse positions of the plurality of fans in the air flue by an enternal external force; wherein when airflow of the plurality of fans flows from the outside of the enclosure to the inside of the enclosure, the plurality of vanes of the damper module are lifted by a force of the airflow, and when an airflow of the plurality of fans flows from the inside of the enclosure to the outside of the enclosure, the plurality of fans in the air flue are in a reversed position; the first bracket supporting the plurality of vanes of the damper module to keep the air flue open.