Grille for a cyclone vacuum

A cyclone dust-collecting apparatus comprising:

• a cyclone body having a suction part through which air is drawn in and a discharge part through which the air is discharged;
• a grille member connected to the discharge part;
• and
• a dirt receptacle connected to the cyclone body, for collecting and storing dirt separated from the air drawn in through the suction part;
• wherein the grille member comprises a body around which a rotating air current is formed, and a plurality of air passages formed at the body to guide the rotating air current into the body, each of the air passages having a leading surface facing toward a flow direction of the rotating air current and a tail surface upstream from the leading surface relative to the rotating current, such that at least one plane extending along the tail surface and a line along the flow direction of the rotating air current meet at an obtuse angle at an upstream side of the flow direction of the rotating current.

A vacuum cleaner comprising:

• a cleaner body having a vacuum suction member installed therein;
• a suction brush connected to the cleaner body and movable along a cleaning surface;
• and
• a cyclone dust-collecting apparatus removably mounted in the cleaner body, comprising a cyclone body having a suction part through which air is drawn in and a discharge part through which the air is discharged, a grille member connected to the discharge part, and a dirt receptacle connected to the cyclone body, for collecting and storing dirt separated from the air drawn in through the suction part;
• wherein the grille member comprises a body around which a rotating air current is formed, and a plurality of air passages formed at the body to guide the rotating air current into the body, each of the air passages having a leading surface facing toward a flow direction of the rotating air current and a tail surface upstream from the leading surface relative to the rotating air current, such that at least one plane extending along the tail surface and a line along the flow direction of the rotating air current meet at an obtuse angle at an upstream side of the flow direction of the rotating air current.