Birch, Stewart, Kolasch & Birch, LLP
Cooling fan
A cooling fan with high heat-dissipating performance includes a plurality of blades; and a frame for receiving the blades therein, wherein the frame has a reduced height for exposing the blades to outside of the frame so as to allow air to enter into the frame via a top portion and a peripheral portion of the blades to improve air introduction and heat dissipating efficiency of the cooling fan. A cover may be mounted to a top surface of the frame, and formed with a plurality of openings for allowing air to enter into the frame through the openings; such an arrangement cam effectively enhance air intake and working efficiency of the cooling fan.
Delta Electronics, Inc.
F F
F04D F04D
inventional inventional
Wen-Ha Kuo-Cheng Tsung-Yu Li-Kuang Wen-Shi
Liu Lin Lei Tan Huang