公开(公告)号：US10285551B2

公开(公告)日：2019-05-14

申请号：US15487756

申请日：2017-04-14

Applicant: LG ELECTRONICS INC.

Inventor： Kietak Hyun ,  Hyukjin Ahn ,  Hyungsoon Lee

IPC: A47L9/16 ,  A47L9/10 ,  A47L5/36 ,  A47L9/12 ,  B04C5/28 ,  B04C5/081 ,  B04C5/13 ,  B04C9/00 ,  A47L9/32 ,  B04C5/06 ,  B04C5/103 ,  B04C5/185 ,  B04C7/00

Abstract: The dust collector, that may be used in vacuum cleaner, includes: a primary cyclone unit separating dust from air introduced from outside the dust collector; and a secondary cyclone unit defining axial cyclone bodies separating fine dust from air introduced in an axial direction. The secondary cyclone unit includes casings having outer walls around hollow portions; and a fine dust separating member disposed on the casings to form the axial cyclones. The fine dust separating member includes vortex finders disposed in the casings; band portions enclosing an outer circumferential surface of the vortex finders at a position spaced from the vortex finders, and having a shape corresponding to the casings so as to form the axial cyclones together with the casings; and guide vanes disposed between the vortex finders and the band portions and extending in a spiral direction to induce a rotational flow of air.

公开(公告)号：US10271701B2

公开(公告)日：2019-04-30

申请号：US15487821

申请日：2017-04-14

Applicant: LG ELECTRONICS INC.

Inventor： Kietak Hyun ,  Hyukjin Ahn ,  Hyungsoon Lee ,  Soohan Eo ,  Sangchul Lee ,  Jungmin Ko

IPC: A47L9/10 ,  A47L9/16 ,  A47L5/36 ,  A47L9/12 ,  B04C5/28 ,  B04C5/081 ,  B04C5/13 ,  B04C9/00 ,  B04C5/06 ,  B04C5/103 ,  B04C5/185 ,  B04C7/00

Abstract: A dust collector includes a primary cyclone unit to separate dust from air introduced from outside dust collector and a secondary cyclone unit includes axial cyclones which separate fine dust from air introduced in an axial direction. The secondary cyclone unit includes a first group of axial cyclones disposed along a circumference of a first circle so as to contact an inner circumferential surface of an inner case, and formed to be partially spaced apart from the inner circumferential surface of the inner case to form first passages therebetween; and a second group of axial cyclones disposed to contact each other along a circumference of a second circle concentric with the first circle and smaller than the first circle, and formed to contact some of the first group of axial cyclones and to be spaced apart from others of the first group axial cyclones to form second passages therebetween.