公开(公告)号：US20230184260A1

公开(公告)日：2023-06-15

申请号：US17974161

申请日：2022-10-26

Applicant: LG Electronics Inc.

Inventor： Jinsub LIM

IPC: F04D29/44 ,  F04D29/58 ,  F04D29/62 ,  F04D17/06 ,  F04D25/06

CPC classification number: F04D29/444 ,  F04D29/5853 ,  F04D29/624 ,  F04D29/5806 ,  F04D17/06 ,  F04D25/0653

Abstract: A motor assembly includes an impeller, a first diffuser at a downstream side of the impeller, a second diffuser at a downstream side of the first diffuser, an impeller cover coupled to the second diffuser and accommodating the impeller and the first diffuser, and a motor provided at the downstream side of the second diffuser to drive the impeller. The second diffuser includes a hub, an outer wall concentrically disposed outside the hub, and a plurality of blades having one side connected to the hub and the other side connected to the outer wall. The impeller cover is coupled to the outer wall of the second diffuser. A communicating portion for allowing fluid communication between inside and outside of the hub of the second diffuser is provided at the hub of the second diffuser.

公开(公告)号：US20250003419A1

公开(公告)日：2025-01-02

申请号：US18705787

申请日：2021-12-16

Applicant: LG Electronics Inc.

Inventor： Mingyu KIM ,  Youngjin JI ,  Honghyun KIM ,  Gyujong JEONG ,  Jinsub LIM

IPC: F04D29/28 ,  F04D25/06 ,  F04D29/056 ,  H02K7/00 ,  H02K7/08

Abstract: A motor is provided. The motor according to an aspect of the present disclosure comprises a housing, a bearing disposed in the housing, a rotating shaft rotatably coupled to the bearing, an impeller cover disposed on an upper part of the housing, an impeller disposed inside the impeller cover and coupled to the rotating shaft, a magnet coupled to a lower area of the rotating shaft, a stator coupled to the housing and facing the magnet, and a coil wound around the stator. In this case, the impeller includes a body, a plurality of blades formed on an outer peripheral surface of the body, a plurality of grooves concavely formed upward from a lower surface of the body, and a coupling hole formed in a central area of the body and in which the rotating shaft is disposed.

公开(公告)号：US20220069665A1

公开(公告)日：2022-03-03

申请号：US17337034

申请日：2021-06-02

Applicant: LG Electronics Inc.

Inventor： Jaegeun NOH ,  Jinsub LIM

IPC: H02K5/20 ,  H02K5/24 ,  H02K7/08 ,  H02K9/06 ,  H02K21/16

Abstract: An electric motor assembly includes an impeller, a guide vane disposed at a one side of the impeller along an axial direction, a stator disposed at one side of the guide vane along the axial direction, a rotor configured to rotate relative to the stator to thereby rotate the impeller, and a frame disposed at an outside of the stator in a radial direction and coupled to the stator. The frame includes a body that has a cylindrical shape, that is disposed at the outside of the stator, and that defines an air flow path, and a plurality of stator fixing parts that protrude from an inner surface of the body and are coupled to the stator. The plurality of stator fixing parts are inclined with respect to the axial direction.