Fan guard of blower unit and air conditioner
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United States of America Patent
Stats
-
Jan 7, 2003
Grant Date -
N/A
app pub date -
Apr 4, 2001
filing date -
Aug 9, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A frame (4a) is provided around the perimeter of the air outlet (2a) of the fan (6). The frame (4a) includes a plurality of board-shaped ribs (41, 41 . . . ) extending radially outward from the vicinity of the center of the frame (4a) in the direction of the radius of the fan (6). The frame (4a) also includes a plurality of cylindrical ribs (42, 42 . . . ) integrated with the plurality of board-shaped ribs (41, 41 . . . ), and arranged concentrically around the rotation axis (O-O') of the fan (6) at predetermined intervals in the direction of the radius of the fan (6). The board-shaped ribs (41) are curved outward in the direction of rotation of the fan (6) and inclined in the direction of air flowing from the fan (6).
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