Delta Electronics, Inc.

Pei-Han Chiu

Chien-Ming Lee

Chung-Yuan Tsang

Sheng-Chieh Su

Chao-Fu Yang

Hao Tien

An impeller for a diagonal fan includes a hub, a cylindrical part, a conical section shell, a plurality of blades and a plurality of extended blades. The cylindrical part is connected to the hub and extends axially from a lower end of the hub. The conical section shell surrounds the hub. The blades are connected to the hub and an inner surface of the conical section shell. The extended blades are disposed on an outer surface of the conical section shell and project from the outer surface of the conical section shell.

Impeller and diagonal fan including the same

Fan blade

An impeller includes a hub and a plurality of blades. The blades are arranged around the hub, and each blade includes a leading edge, a blade tip, a root portion, a trailing edge, a windward side and a leeward side. The windward side including a first turning point and a second turning point, a first vertical height difference is formed from the blade tip to the first turning point, and a second vertical height difference is formed from the first turning point to the second turning point, and the first vertical height difference is greater than the second vertical height difference. The impeller apparently reduces the noise.

Impeller

A fan frame is provided and includes a body and a first cover plate. The body includes a main surface and a first side which is substantially perpendicular to the main surface. A first channel and a second channel, which are adjacent to each other, are formed in the body, and a first space is formed among the main surface, the first side, a sidewall of the first channel, and a sidewall of the second channel. The cover plate is disposed on the body, and covers the first space, wherein a first hole is formed in the first cover plate, and the first space communicates with the external environment via the first hole.

Growing community of inventors

Taoyuan, Taiwan

Pei-Han Chiu