Patent ID: 9057384
Filing Date: 2015-06-16
Classification: F04D

Abstract:
1. An integrated fan for use in a cooling device, said integrated fan comprising: a centrifugal blade unit having a hub; and a frame for accommodating said centrifugal blade unit, wherein said frame comprises: a first casing comprising a main plate and an airflow inlet, wherein said airflow inlet is disposed in said main plate and aligned with said hub; a second casing opposed to said main plate of said first casing, wherein said second casing comprises a central part, plural extension parts and plural apertures, said central part is aligned with said centrifugal blade unit for partially sheltering said centrifugal blade unit; and plural airflow-guiding plates aslant and externally extended from plural edges of said main plate and connected with said second casing, wherein every two adjacent airflow-guiding plates, said first casing and said second casing define an airflow output channel, and each of said apertures is in communication with a corresponding airflow output channel, wherein an included angle between an airflow-leaving direction of said airflow output channel and an airflow-entering direction of said airflow inlet is more than 90 degrees and less than 180 degrees.