Housing for Axial-Flow Fan
AssigneeSunonwealth Electric Machine Industry Co., Ltd.
InventorsAlex Horng, Ching-Sheng Horng
Life of this patent
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Abstract
A housing for axial-flow fan includes a frame, a seat and a plurality of stationary blades. The frame has an air inlet and an air outlet. The seat is received in the frame and at a position where the air outlet is formed. Two ends of each stationary blade are respectively fixed to an outer periphery of the seat and an inner periphery of the frame. Furthermore, extending directions of any two adjacent stationary blades jointly define an included angle and all of the included angles formed by all of the stationary blades are of more than two values in degrees, so that the stationary blades are not spaced with equal intervals. Consequently, while sucked air passes by the stationary blades, noises with the same tone can be suppressed effectively.
Claims5
A housing for axial-flow fan comprising a frame having an air inlet and an air outlet, a seat received in the frame and at a position where the air outlet is formed, and a plurality of stationary blades, with each stationary blade having two ends respectively fixed to an outer periphery of the seat and an inner periphery of the frame,
- wherein extending directions of any two adjacent stationary blades jointly define an included angle, and all of the included angles formed by all of the stationary blades are of more than two values in degrees.
Dependencies are inferred from the claim text.