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CENTRIFUGAL BLOWER

  • US 20160264028A1
  • Filed: 10/14/2014
  • Published: 09/15/2016
  • Est. Priority Date: 10/21/2013
  • Status: Abandoned Application
First Claim
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1. A centrifugal blower comprising:

  • a centrifugal fan that rotates by a rotational driving force transmitted thereto, draws air in an axial direction of a rotational axis, and blows the air in a radial direction; and

    a case that houses the centrifugal fan and is provided with a suction port for the air, whereinthe centrifugal fan has;

    a plurality of blades (that are arranged annularly around the rotational axis; and

    an upper-surface-side plate to which the plurality of blades are fixed, the upper-surface-side plate that is arranged to face an suction-side surface of the case) provided with the suction port,the upper-surface-side plate has a protruding part that has an annular shape when viewed in the axial direction and protrudes toward the suction-side surface,the suction-side surface and the upper-surface-side plate form a gap therebetween, and a sealing member made of a semisolid material is disposed in the gap, andthe sealing member is disposed on a side adjacent to the suction-side surface to be in contact with both the suction-side surface and the upper-surface-side plate and is disposed around the rotational axis to have an annular shape when viewed in the axial direction.

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