| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electric vacuum cleaner which is compact, has small air resistance, and shows high performance by maximally providing a flow passage inside a lid part relative to an area of the lid part while suppressing a reverse flow or spilling out of dust.SOLUTION: In an electric vacuum cleaner which includes: a vacuum cleaner body having a body suction port and a motor-driven fan for generating suction force; and a dust collection device including a separation part in which air containing suctioned dust rotates for separating the air from the dust and a dust collection part for storing the dust separated by the separation part between the body suction port and the motor-driven fan, a lid part which internally capsules one or a plurality of flow passages connecting the separation part and the dust collection part and can open and close relative to the separation part or the dust collection part is provided between the separation part and the dust collection part. The flow passage of the lid part comprises two components A57b, B58b, and check valves 54b, 55b are provided to be sandwiched between the components A57b, B58b constituting the flow passage of the lid part in one or the plurality of the flow passages of the lid part.</p> |
