Cyclone dust collecting device for a vacuum cleaner

A cyclone dust collecting device for a vacuum cleaner, comprising:

• a cyclone body for connection to a telescopic extension pipe of the vacuum cleaner, the cyclone body generating a swirling vortex from an inflow of air and contaminants;
• and
• a cyclone housing detachably engaged with the cyclone body, the cyclone housing having
• a slanted partition with a through-hole formed therein, the slanted partition dividing an interior of the cyclone housing into an upper space for separating the contaminants from the air by guiding the swirling vortex of air and a lower space for receiving the contaminants that have been separated from the air, wherein the slanted partition includes a dome-shaped protrusion formed on a center thereof.

A vacuum cleaner comprising:

• a cleaner body, including a suction creating device;
• a telescopic extension pipe coupled to the cleaner body via a flexible hose;
• a cyclone dust collecting device mounted to the telescopic extension pipe, the cyclone dust collecting device including:
• a cyclone body mounted on the telescopic extension pipe, the cyclone body generating a swirling vortex from an inflow of air and contaminants caused by the suction creating device;
• and
• a cyclone housing detachably engaged with the cyclone body, the cyclone housing having a slanted partition with a through-hole formed therein, the slanted partition dividing an interior of the cyclone housing into an upper space for separating the contaminants from the air by guiding the swirling vortex of air and a lower space for receiving the contaminants that have been separated from the air,
• the cyclone housing further comprising:
• a cyclone cover having a cylindrical shape, an open upper end, and a lower closed end disposed at a lower portion of the cyclone cover, the open upper end being engaged with the cyclone body, the lower closed end being closed by the slanted partition:
• and
• a dust collecting container detachably engaged with a lower portion of the cyclone cover in the lower space, the dust collecting container having an open end that is slanted to correspond with the slanted partition of the cyclone cover.