Volute of centrifugal fan for range hood

Volute of centrifugal fan for range hood

  • CN 202,280,660 U
  • Filed: 09/15/2011
  • Issued: 06/20/2012
  • Est. Priority Date: 09/15/2011
  • Status: Active Grant
First Claim
Patent Images

1. the centrifugal blower volute of a range hood comprises spiral case top board (1), spiral case base plate (2), spiral case coaming plate (3) and spiral case flange (4), and wherein spiral case top board (1) is provided with intake grill (1.1);

  • Spiral case base plate (2) is provided with motor fixed hole (2.1);

    Spiral case coaming plate (3) is that smooth curved plate and its two ends are connected with spiral case top board (1), spiral case base plate (2) respectively continuously, and spiral case coaming plate (3) comprises arc surface (3.1) and helicoid (3.2);

    Spiral case flange (4) is provided with exhaust outlet (4.1), it is characterized in that this centrifugal blower volute also comprises snail tongue body (5), snail tongue body (5) moulding separately, and the arc surface (3.1) that is arranged on spiral case coaming plate (3) is located.

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