US2006045742A1PendingUtilityA1

Air fan

26
Individually held — no corporate assignee on recordPriority: Aug 31, 2004Filed: Apr 7, 2005Published: Mar 2, 2006
Est. expiryAug 31, 2024(expired)· nominal 20-yr term from priority
Inventors:Hon Ngan
F04D 25/10F04D 25/08
26
PatentIndex Score
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Cited by
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References
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Claims

Abstract

The present utility model provides an air fan, comprising: a main propeller ( 19 ); a main motor ( 24 ) operably connected to the main propeller ( 19 ), driving the main propeller ( 19 ) to rotate to generate air stream; characterized in that the air fan further comprises a wind guide device composed of a wind guard plate ( 35 ) and a wind reject plate ( 21 ) and surrounding the main propeller ( 19 ), a gap is provided between the wind guard plate ( 35 ) and the wind reject plate ( 21 ) for facilitating flowing out of air; an auxiliary motor ( 53 ) operably connected to the wind guide device via a rotation-oscillation shifting device, for driving the wind guide device to oscillate to change the wind direction.

Claims

exact text as granted — not AI-modified
1 . An air fan, comprising: 
 a main propeller ( 19 );    a main motor ( 24 ) operably connected to the main propeller ( 19 ), driving the main propeller ( 19 ) to rotate to generate air stream;    characterized in that the air fan further comprises a wind guide device composed of a wind guard plate ( 35 ) and a wind reject plate ( 21 ) and surrounding the main propeller ( 19 ), a gap is provided between the wind guard plate ( 35 ) and the wind reject plate ( 21 ) for facilitating flowing out of air; an auxiliary motor ( 53 ) operably connected to the wind guide device via a rotation-oscillation shifting device, for driving the wind guide device to oscillate to change the wind direction.    
   
   
       2 . The air fan as claimed in  claim 1 , characterized in that it further comprises an ion generator ( 85 ).  
   
   
       3 . The air fan as claimed in  claim 1 , characterized in that it further comprises a water filter.  
   
   
       4 . The air fan as claimed in  claim 2 , characterized in that it further comprises a water filter.  
   
   
       5 . The air fan as claimed in any one of claims  1 - 4 , characterized in that it further comprises an enclosure in which the main propeller ( 19 ) and the wind guide device are both disposed.  
   
   
       6 . The air fan as claimed in any one of claims  1 - 4 , characterized in that the rotation-oscillation shifting device is a crank and rocker mechanism.  
   
   
       7 . The air fan as claimed in  claim 5 , characterized in that the rotation-oscillation shifting device is a crank and rocker mechanism.

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