Patent ID: 7198464

Claim:
A frame device for a fan comprising: a square lower frame with four lateral sides and four triangular corners; providing a hub seat at a hollow space thereof for being joined to a hub of a fan wheel; a plurality of rectangular jut units, each of the rectangular jut units comprising a facial side and two opposite long lateral sides, and extending from the four lateral sides of the frame except the four corners; and an inverted trapezoidal jut unit with a facial side and two opposite slant lateral sides extending from the respective corner of the frame; wherein the facial sides of all the jut units are disposed to face the fan wheel and to surround the fan in a way of inclining outward an angle and a plurality of elongated spaces are formed between the jut units such that air, which is induced by the fan laterally, is capable of moving through the elongated spaces along a direction perpendicular to the four lateral sides of the frame.