公开(公告)号：US20240178717A1

公开(公告)日：2024-05-30

申请号：US18488445

申请日：2023-10-17

Applicant: LG Electronics Inc.

Inventor： Eunji HWANG ,  Byungjik KIM ,  Sunggi KIM ,  Jisu HWANG

IPC: H02K5/173 ,  F04D25/06 ,  F04D29/056 ,  F04D29/26 ,  F04D29/32 ,  F04D29/70 ,  F16C35/04 ,  H02K7/08 ,  H02K21/16

CPC classification number: H02K5/1732 ,  F04D25/06 ,  F04D29/056 ,  F04D29/263 ,  F04D29/325 ,  F04D29/703 ,  F16C35/042 ,  H02K7/083 ,  H02K21/16 ,  A47L5/24 ,  F16C2360/46

Abstract: A fan motor is disclosed. The fan motor includes a rotating shaft, a motor, a bearing, a bearing housing, a preload applying device, and a bush. The preload applying device is disposed between one axial end of the bearing and the bearing housing, and applies force to the one axial end of the bearing in an axial direction by using elastic force. The bush is coupled to an outer circumferential surface of the bearing and slidably mounted on an inner circumferential surface of the bearing housing in an axial direction. A protrusion is formed on one axial end portion of the bush, and a protrusion accommodating groove is formed on an axial inner surface of the bearing housing. Accordingly, the preload applying device can continuously apply an appropriate preload to the bearing, while the bush can suppress slipping of an outer ring of the bearing.

公开(公告)号：US20240120796A1

公开(公告)日：2024-04-11

申请号：US18356529

申请日：2023-07-21

Applicant: LG Electronics Inc.

Inventor： Sunggi KIM ,  Byungjik KIM ,  Eunji HWANG ,  Jisu HWANG

IPC: H02K5/173 ,  F04D25/06 ,  F04D29/58 ,  F16C37/00 ,  H02K5/18 ,  H02K7/08 ,  H02K9/06 ,  H02K21/16

CPC classification number: H02K5/1732 ,  F04D25/06 ,  F04D29/582 ,  F16C37/007 ,  H02K5/18 ,  H02K7/083 ,  H02K9/06 ,  H02K21/16 ,  A45D20/00 ,  F16C2380/26

Abstract: A fan motor is disclosed. The fan motor includes an impeller, a rotational shaft, a plurality of bearings, and a heat dissipation fin. The impeller is mounted on the rotational shaft. The plurality of bearings support the rotational shaft. The heat dissipation fin is mounted on the rotational shaft and includes rotating blades rotating centering on the rotational shaft. According to this, the heat dissipation fin may cool the bearing by using convection.

公开(公告)号：US20210348616A1

公开(公告)日：2021-11-11

申请号：US17206857

申请日：2021-03-19

Applicant: LG Electronics Inc.

Inventor： Eunji HWANG ,  Byungjik KIM ,  Sunggi KIM ,  Jisu HWANG

IPC: F04D25/06 ,  F04D29/08

Abstract: A fan motor includes a shroud, a rotating shaft that is disposed inside the shroud and includes a first support portion, a second support portion, and a permanent magnet mounting portion disposed between the first support portion and the second support portion, an impeller disposed at a first end portion of the rotating shaft, an air bearing that is disposed adjacent to the impeller and defines an air gap facing the first support portion, a permanent magnet disposed at the permanent magnet mounting portion between the first end portion and a second end portion of the rotating shaft opposite to the first end portion in the axial direction, and a ball bearing disposed at the second end portion of the rotating shaft and configured to rotatably support the second support portion.

公开(公告)号：US20190178289A1

公开(公告)日：2019-06-13

申请号：US16274793

申请日：2019-02-13

Applicant: LG ELECTRONICS INC.

Inventor： Eunji HWANG ,  Sunggi KIM ,  Hangjin BAN ,  Donghan KIM ,  Byungjik KIM

IPC: F16C27/06 ,  H02K5/173 ,  F16C43/04 ,  F16C19/02 ,  F16C33/58 ,  F16C19/06 ,  F16C32/06

CPC classification number: F16C27/066 ,  F16C19/02 ,  F16C19/06 ,  F16C32/0603 ,  F16C33/583 ,  F16C33/586 ,  F16C43/04 ,  F16C2300/22 ,  F16C2380/26 ,  H02K5/173 ,  H02K5/1732

Abstract: A rolling bearing includes an inner rim fixed to a rotating shaft, an outer rim spaced apart from the inner rim, a rolling member disposed between the inner rim and the outer rim, and an elastic mesh defining a plurality of through-holes and surrounding an outer circumferential surface of the outer rim.

公开(公告)号：US20180076684A1

公开(公告)日：2018-03-15

申请号：US15703369

申请日：2017-09-13

Applicant: LG ELECTRONICS INC.

Inventor： Eunji HWANG ,  Sunggi KIM ,  Hangjin BAN

IPC: H02K5/173 ,  H02K9/06

CPC classification number: H02K5/1732 ,  A47L9/0081 ,  A47L9/22 ,  H02K5/20 ,  H02K9/06 ,  H02K2213/09

Abstract: A motor includes a motor housing, a rotating shaft assembly that includes a rotor mounted to the rotating shaft, an impeller connected to the rotating shaft, and an impeller cover that surrounds an outer circumference of the impeller. The impeller cover defines an air inlet. The motor further includes a stator that is located within the motor housing and that surrounds at least a portion of the rotor, a bearing mounted to the rotating shaft, and an elastic mesh having a plurality of pores. The elastic mesh is disposed between the motor housing and the bearing.

公开(公告)号：US20180076682A1

公开(公告)日：2018-03-15

申请号：US15698925

申请日：2017-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Eunji HWANG ,  Sunggi KIM ,  Byungjik KIM

IPC: H02K5/16 ,  H02K9/06

CPC classification number: H02K5/161 ,  H02K5/1732 ,  H02K5/20 ,  H02K9/06

Abstract: A motor includes a motor body, a bracket installed in the motor body, a rotating shaft, a bearing accommodated inside the bracket and supporting the rotating shaft, and a bearing supporter defining a plurality of pores. The bracket and the bearing define a bearing heat dissipation flow path between an outer surface of the bearing and an inner surface of the bracket, and the bearing heat dissipation flow path is configured to pass air therethrough. The bearing supporter is disposed in the bearing heat dissipation flow path, and the bracket defines a bracket through-hole configured to discharge air that has passed through the plurality of pores of the bearing supporter.

公开(公告)号：US20180073557A1

公开(公告)日：2018-03-15

申请号：US15698960

申请日：2017-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Eunji HWANG ,  Sunggi KIM ,  Hangjin BAN ,  Donghan KIM ,  Byungjik KIM

IPC: F16C27/06 ,  F16C33/58 ,  F16C43/04 ,  F16C19/02 ,  H02K5/173

CPC classification number: F16C27/066 ,  F16C19/02 ,  F16C19/06 ,  F16C32/0603 ,  F16C33/583 ,  F16C33/586 ,  F16C43/04 ,  F16C2300/22 ,  F16C2380/26 ,  H02K5/173 ,  H02K5/1732

Abstract: A rolling bearing includes an inner rim fixed to a rotating shaft, an outer rim spaced apart from the inner rim, a rolling member disposed between the inner rim and the outer rim, and an elastic mesh defining a plurality of through-holes and surrounding an outer circumferential surface of the outer rim.