Wind impeller for fan

Wind impeller for fan

  • CN 201,241,864 Y
  • Filed: 08/15/2008
  • Issued: 05/20/2009
  • Est. Priority Date: 08/15/2008
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of fan blade that is used for blower fan, the wheel hub (2) that includes blade (1) and link with the output shaft of motor (3), described blade (1) is distributed on the wheel hub (2), it is narrow to be the wide and interior string of exterior string (13) (14) at every blade (1), and the blade (1) that is positioned at exterior string (13) position is provided with wing flap (15), it is characterized in that:

  • described wing flap (15) adopts streamline, this wing flap (15) extends to blade exterior string (13) rear end from blade tip (16) import distance (P) for 5~

    10% of exterior string (13) length always, and the trailing edge (12) of every blade (1) adopts the zigzag fashion that can reduce Rotation Noise.

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