Vacuum cleaner

摘要

A vacuum cleaner having a suction and rotation unit (30) with a bypass passage structure in which air does not directly pass through a motor (33), but bypasses the motor is disclosed. The vacuum cleaner includes a cleaner body (11) having an air inflow opening (13) and an air outflow opening (21), at least one air suction and rotation unit (30) disposed downstream of a drum brush (15) installed in the air inflow opening (13), to draw in air through the air inflow opening and at the same time, to rotate the air, and a dust collecting unit (40) disposed downstream of the air suction and rotation unit (30) and having a dust collecting chamber (42) to separate and collect dust or dirt from the air by a centrifugal force and an air flow generated by the air suction and rotation unit (30).