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Cleaner

  • US 10,631,698 B2
  • Filed: 07/31/2018
  • Issued: 04/28/2020
  • Est. Priority Date: 03/31/2016
  • Status: Active Grant
First Claim
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1. A cleaner comprising:

  • a suction unit configured to guide air into the cleaner;

    a dust separation unit comprising;

    a first cyclone unit configured to separate dust from air that is suctioned into the cleaner through the suction unit; and

    a second cyclone unit configured to receive air that is discharged from the first cyclone unit, the second cyclone unit comprising a plurality of cyclone bodies that are configured to separate dust from the air that is discharged from the first cyclone unit;

    a suction motor having a rotary impeller, the suction motor being configured to drive a rotation of the rotary impeller via an impeller shaft to generate a suction force that suctions air into the cleaner through the suction unit;

    a motor housing configured to house the suction motor;

    a flow guide that is disposed circumferentially around the rotary impeller and that comprises a surface that is configured to guide air from a first passage of the cleaner to a second passage of the cleaner, in which (i) the first passage is configured to guide air that is discharged from the second cyclone unit past an outer surface of the motor housing and towards at least one opening of the motor housing through which air flows to the rotary impeller, and (ii) the second passage is configured to guide air that flows from the rotary impeller towards an outside of the cleaner; and

    a dust container configured to store dust that is separated by the dust separation unit,wherein, in a state in which the cleaner is oriented with the impeller shaft elongated longitudinally along a vertical direction, a top of the second cyclone unit is disposed below a bottom of the suction motor.

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