Delta Electronics, Inc.

Li-Han Hung

Chao-Fu Yang

Kuo-Tung Hsu

Shun-Chen Chang

Jen-Bo Huang

Frame of fan

An impeller and a fan are provided. The impeller includes a hub, a plurality of first blades, a plurality of second blades and a connecting member. The plurality of first blades are disposed around the hub separately. Each first blade is connected with a periphery of the hub. The plurality of second blades are disposed around the hub separately. Each second blade is disposed away from the periphery of the hub and located between two adjacent first blades of the plurality of first blades. The connecting member is disposed around the hub and penetrated through the plurality of first blades and the plurality of second blades. The connecting member is not in contact with a first edge of any side of each first blade. The connecting member is not in contact with a second edge of any side of each second blade.

Impeller and fan employing same

An impeller includes a hub and blades. In radial direction, an upper surface of the blade near the outer edge includes a groove structure, a lower surface of the blade relating to the groove structure includes a peak structure, the lower surface of the blade includes a recess structure aside the trailing edge or the leading edge. The recess structure is connected to the peak structure. The blade has at least five airfoils from the inner edge to the outer edge. The blade is defined by continuously connecting the at least five airfoils at different sections in sequence so as to form the groove structure and the peak structure respectively on the upper surface and the lower surface. The groove structure and the peak structure are aside the outer edge of the blade.

Growing community of inventors

Taoyuan, Taiwan

Li-Han Hung