Birch, Stewart, Kolasch & Birch, LLP
Fan and impeller thereof
A fan includes an impeller and a motor. The impeller includes a hub and a plurality of blades. The hub has a top portion, a connection portion, and at least one airflow-guiding portion. The top portion is connected to the connection portion. The blades are disposed around the connection portion. The motor is disposed corresponding to the impeller and used to drive the impeller to rotate. The airflow-guiding portion is disposed between two adjacent blades.
Delta Electronics, Inc.
F
F04D
inventional
Shihying Wen-Shi Chung-kai Huan-Chi Tsung Yu Shihhua
Huang Huang Lan Chen Lei Ho