公开(公告)号：US20200248702A1

公开(公告)日：2020-08-06

申请号：US16631823

申请日：2018-10-22

Applicant: LG Electronics Inc.

Inventor： Sunggi KIM ,  Byungjik KIM ,  Eunji HWANG ,  Donghan KIM ,  Changlae KIM

IPC: F04D25/06 ,  F04D29/056

Abstract: The present embodiment comprises: a rotary shaft; a rotor mounted on the rotary shaft; a stator for encompassing the outer circumference of the rotor; an impeller mounted on the rotary shaft so as to be spaced from the rotor; a bearing housing having a through-hole through which the rotary shaft passes; a rolling bearing disposed in the bearing housing and coupled to the rotary shaft; and a gas bearing disposed in the bearing housing so as to be spaced from the rolling bearing in an axial direction, and facing the outer circumference of the rotary shaft.

公开(公告)号：US20200166045A1

公开(公告)日：2020-05-28

申请号：US16688331

申请日：2019-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Changlae KIM ,  Sunggi KIM ,  Byungjik KIM ,  Taeho KIM

IPC: F04D29/052 ,  F04D27/00 ,  F16D13/04 ,  F16D13/44

Abstract: Disclosed herein is a motor including a bearing in which a rolling member is disposed between an inner ring and an outer ring, a spring connected to the outer ring, and a pusher connected to the spring to be retracted to a first position spaced apart from the inner ring by the spring, and to be advanced to a second position at which friction with the inner ring is caused by a pressure of air acting on a pressure surface when the pressure surface on which the pressure of air flowing by the impeller acts is formed, wherein the inner ring is spaced apart from the rotating shaft by a gap formed between the inner ring and the rotating shaft when the pusher is at the second position.

公开(公告)号：US20200067371A1

公开(公告)日：2020-02-27

申请号：US16549583

申请日：2019-08-23

Applicant: LG Electronics Inc.

Inventor： Sunggi KIM ,  Byungjik KIM ,  Changlae KIM

IPC: H02K5/167 ,  H02K5/173 ,  H02K7/08 ,  H02K7/14 ,  H02K15/14 ,  F16C32/06

Abstract: A motor according to an embodiment of the present invention includes a rotary shaft; a rotor mounted on the rotary shaft; a stator surrounding an outer periphery of the rotor; an impeller mounted on the rotary shaft to be spaced apart from the rotor; a bearing housing positioned between the impeller and the rotor and formed with a through-hole through which the rotary shaft passes; and a gas bearing disposed in the bearing housing, wherein a thickness of the gas bearing is equal to or greater than 50% of a gap between an inner surface of the bearing housing and an outer peripheral surface of the rotary shaft and is equal to or less than 0.3 mm.

公开(公告)号：US20200063576A1

公开(公告)日：2020-02-27

申请号：US16540451

申请日：2019-08-14

Applicant: LG Electronics Inc.

Inventor： Changlae KIM ,  Byungjik KIM ,  Sunggi KIM ,  Sanghyun HONG

IPC: F01D5/28 ,  F04D29/66 ,  F04D29/22

Abstract: A fan motor according to an embodiment of the present invention may include: an impeller a hub connected to a rotary shaft and at least one blade formed on the outer surface of the hub; a shroud surrounding the outer circumference of the impeller; and a coating layer coated on the inner circumferential surface of the shroud. The coating layer may include: a polymer having strength lower than the strength of the blade; and a plurality of beads mixed with the polymer and having strength higher than the strength of the polymer.