公开(公告)号：US09757001B2

公开(公告)日：2017-09-12

申请号：US14814067

申请日：2015-07-30

Applicant: LG ELECTRONICS INC.

Inventor： Mantae Hwang ,  Philjae Hwang ,  Jaeheon Jeong

IPC: A47L5/24 ,  A47L9/28 ,  A47L5/22 ,  A47L5/28

CPC classification number: A47L9/2873 ,  A47L5/225 ,  A47L5/24 ,  A47L5/28 ,  A47L9/2884

Abstract: A vacuum cleaner is provided. The vacuum cleaner includes: a cleaner main body including a nozzle assembly into which air including foreign substances is suctioned, a collecting portion that collects the suctioned foreign substances, a suction device that generates a suction force, and a battery for supplying power to the suction device; and a charging stand including support portions on which the cleaner main body is seated, and a battery charging portion for performing charging of a replacement battery.

公开(公告)号：US10815999B2

公开(公告)日：2020-10-27

申请号：US15882837

申请日：2018-01-29

Applicant: LG ELECTRONICS INC.

Inventor： Jaeheon Jeong

IPC: F04C28/26 ,  F04C18/02 ,  F04C23/00 ,  F04C28/24

Abstract: A scroll compressor including a casing; a compression unit provided in an inner space of the casing to form a compression chamber by a pair of two scrolls; a bypass hole provided in the compression unit to bypass refrigerant suctioned into the compression chamber to the inner space of the casing; a bypass valve configured to selectively open and close the bypass hole to vary a compression capacity of the compression chamber; a back pressure chamber provided on a rear side of either one of the pair of two scrolls to support the scroll in the other scroll direction; a back pressure passage configured to communicate between the compression chamber and the back pressure chamber; and a back pressure valve configured to selectively open and close the back pressure passage.