公开(公告)号：US20230332623A1

公开(公告)日：2023-10-19

申请号：US18339639

申请日：2023-06-22

Applicant: LG Electronics Inc.

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

IPC: F04D29/58 ,  F04D29/32 ,  F04D25/06 ,  H02K9/06 ,  F04D25/08 ,  F04D29/44

CPC classification number: F04D29/584 ,  F04D29/325 ,  F04D25/06 ,  H02K9/06 ,  F04D25/082 ,  F04D25/0606 ,  F04D29/444

Abstract: A fan motor includes a housing, a rotating shaft that is rotatably disposed in the housing and extends through the housing, an impeller rotatably disposed at the rotating shaft, a first vane disposed adjacent to the impeller and configured to guide a flow of air generated by the impeller, a rotor disposed at the rotating shaft and spaced apart from the impeller in an axial direction of the rotating shaft, a stator that is disposed in the housing and surrounds the rotor, the stator and the rotor defining an air gap therebetween, and a second vane coupled to the stator and disposed downstream relative to the first vane in a flow direction of the flow of air. The second vane is in contact with at least a part of an inner surface of the housing.

公开(公告)号：US20210340996A1

公开(公告)日：2021-11-04

申请号：US17165456

申请日：2021-02-02

Applicant: LG Electronics Inc.

Inventor： Jin HONG ,  Kwangyong JANG ,  Yongdae KIM ,  Sunggi KIM

IPC: F04D29/52 ,  F04D25/06 ,  F04D29/056 ,  F04D29/54 ,  H02K3/52 ,  H02K5/16 ,  H02K5/20 ,  H02K7/08 ,  H02K9/06

Abstract: A fan motor includes: a motor including a stator and a rotor, a motor housing accommodating the motor, a bearing case disposed at a lower portion of the motor housing, an impeller coupled to a rotary shaft of the motor, a vane structure disposed at a lower side of the impeller and configured to guide air, and a lead cable connector provided in the bearing case. The stator of the motor includes a core and a coil that is wound on the core, and the lead cable connector is connected to a lead cable of the coil of the stator.

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：US20180076683A1

公开(公告)日：2018-03-15

申请号：US15698884

申请日：2017-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Eunji HWANG ,  Sunggi KIM ,  Hangjin BAN

IPC: H02K5/173 ,  H02K9/06

Abstract: A motor includes a motor housing, a rotating shaft assembly including a rotating shaft, a rotor, and a bearing in which the rotor and the bearing are mounted to the rotating shaft. The motor further includes a stator installed in the motor housing, the stator surrounding the rotor, a bracket mounted to the motor housing, and an elastic mesh that defines a plurality of pores, that is disposed between the bracket and the bearing, and that contacts at least one of the bracket or the bearing.

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.