(EN) Provided is a cyclone separation device which can efficiently separate dust and can reliably collect the dust into a dust collection chamber without causing the dust to be caught by the opening edge of the opening for connecting a swirl chamber and the dust collection chamber. Also provided is an electric cleaner having the cyclone separation device installed therein. A first-order swirl chamber (12) swirls dust-containing air, which flows therein from a first-order inlet (11), to separate dust from the dust-containing air and discharges the air, from which the dust has been removed, from a first-order outlet (15). At least a part of the opening edge of a zero-order opening (113) formed by opening a part of the side wall of the first-order swirl chamber (12), said part of the opening edge being located downstream in the direction of swirl of the dust-containing air, has a rounded shape. As a result, the dust separated from the dust-containing air is reliably collected into a zero-order dust collection chamber (114) without being caught by the opening edge of the zero-order opening section (113).
(ZH)
本发明提供一种旋风分离装置以及搭载了该旋风分离装置的电动吸尘器，效率良好地分离垃圾，垃圾不卡挂在连通回旋室和集尘室的开口的开口缘地，可靠地被捕集到集尘室。一次回旋室（12）使从一次流入口（11）流入的含尘空气回旋，由此从含尘空气分离灰尘，将去除了灰尘的空气从一次排出口（15）排出。在该一次回旋室（12）的侧壁的一部分上开口地形成的0次开口部（113）的开口缘上，含尘空气的回旋方向下游侧的开口缘的至少一部分形成为带圆形的形状。由此，从含尘空气分离的灰尘不会卡挂在0次开口部（113）的开口缘上地被可靠地捕捉到0次集尘室（114）。
