公开(公告)号：US20200088181A1

公开(公告)日：2020-03-19

申请号：US16692913

申请日：2019-11-22

Applicant: LG Electronics Inc.

Inventor： Wooju JEON ,  Donghan KIM ,  Kichul CHOI

IPC: F04B39/02

Abstract: Provided is a linear compressor. The linear compressor includes a piston, a cylinder, and a bearing inflow passage. The bearing inflow passage includes a first bearing inflow passage extending inward from an outer circumferential surface of the cylinder in the radial direction and a second bearing inflow passage extending from the first bearing inflow passage to an inner circumferential surface of the cylinder. The second bearing inflow passage extends from the inner circumferential surface of the cylinder in a circumferential direction.

公开(公告)号：US20200011316A1

公开(公告)日：2020-01-09

申请号：US16502868

申请日：2019-07-03

Applicant: LG Electronics Inc.

Inventor： Wooju JEON ,  Donghan KIM ,  Kichul CHOI

IPC: F04B39/02

Abstract: Provided is a linear compressor. The linear compressor includes a piston, a cylinder, and a bearing inflow passage. The bearing inflow passage includes a first bearing inflow passage extending inward from an outer circumferential surface of the cylinder in the radial direction and a second bearing inflow passage extending from the first bearing inflow passage to an inner circumferential surface of the cylinder. The second bearing inflow passage extends from the inner circumferential surface of the cylinder in a circumferential direction.

公开(公告)号：US20190353155A1

公开(公告)日：2019-11-21

申请号：US16414114

申请日：2019-05-16

Applicant: LG Electronics Inc.

Inventor： Kwangwoon AHN ,  Donghan KIM ,  Kiwon NOH ,  Joonsung PARK

IPC: F04B39/16 ,  F04B35/04

Abstract: Provided is a linear compressor including a linear motor having a mover reciprocating with respect to a stator; a piston coupled to the mover to reciprocate; a cylinder into which the piston is slidingly inserted, the cylinder having an inner circumferential surface forming a bearing surface together with an external circumferential surface of the piston, the cylinder forming a compression space together with the piston, and the cylinder having at least one first hole formed through the inner circumferential surface of the cylinder and an outer circumferential surface of the cylinder to guide refrigerant discharged from the compression space to the bearing surface; and a porous member inserted into the outer circumferential surface of the cylinder and configured to cover the first hole, the porous member having multiple micropores smaller than the first hole.

公开(公告)号：US20190045294A1

公开(公告)日：2019-02-07

申请号：US15891541

申请日：2018-02-08

Applicant: LG ELECTRONICS INC.

Inventor： Donghan KIM ,  Siyoung PARK ,  Junyoung PARK ,  Sewon JANG ,  Shin HAN

IPC: H04R1/10

Abstract: A portable sound device having a main body having an earbud holder, an earbud detachably mounted in the earbud holder for outputting a sound, a main board located in the main body, the main body being connected to the earbud via a sound cable, and a rotary module mounted in the main body is provided. The rotary module includes a shaft fixed to the main body, a bobbin rotatable about the shaft, the sound cable being wound around the outer circumferential surface of the bobbin, a reel spring providing rotary force to the bobbin, a track having a concave part, the track being rotated with the bobbin, a guide plate having a guide slot, through which the shaft extends, the guide slot extending in one direction, and a bump protruding from the guide plate so as to be inserted into the track.

公开(公告)号：US20220090590A1

公开(公告)日：2022-03-24

申请号：US17381654

申请日：2021-07-21

Applicant: LG ELECTRONICS INC.

Inventor： Sangik SON ,  Wooju JEON ,  Youngkyun LIM ,  Donghan KIM

IPC: F04B35/04 ,  F04B39/00 ,  F04B39/12 ,  F04B39/02

Abstract: A linear compressor includes a cylinder that defines a compression space of a refrigerant and has a cylindrical shape, and a piston disposed in the cylinder and reciprocating along an axis of the cylinder. The cylinder includes a gas inlet formed on an outer circumferential surface of the cylinder, a supply port radially passing through the cylinder and communicating with the gas inlet, and a recess communicating with the supply port and formed on an inner circumferential surface of the cylinder. An angle formed by an axial cross section of the recess and a straight line extending the supply port and an angle formed by the axial cross section of the recess and a straight line extending the inner circumferential surface of the cylinder each are an acute angle.

公开(公告)号：US20210140425A1

公开(公告)日：2021-05-13

申请号：US17091556

申请日：2020-11-06

Applicant: LG Electronics Inc.

Inventor： Donghan KIM

IPC: F04B53/14 ,  F04B53/16

Abstract: A compressor and a method of manufacturing the same are disclosed. The compressor includes a piston having a cylindrical shape and having formed therein a suction space, in which refrigerant gas is sucked, and a cylinder having, as a space formed therein, formed therein a compression space, in which refrigerant gas is compressed, by reciprocation of the piston in an axial direction. A gas inflow passage having one side communicating with a gas pocket outside the cylinder and the other side communicating with a space formed in the cylinder is formed in the cylinder, and the piston includes a plurality of fine irregularities formed in an outer circumferential surface of a guide facing the cylinder and provided at a position corresponding to the gas inflow passage.

公开(公告)号：US20190313176A1

公开(公告)日：2019-10-10

申请号：US16349903

申请日：2017-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Obyoung KANG ,  Sungwon KIM ,  Hyunsun YOO ,  Seunghoon LEE ,  Donghan KIM ,  Joonseong HA

IPC: H04R1/10 ,  B06B1/02 ,  H04W64/00

Abstract: Provided is a portable audio equipment comprising: a neckband-shaped housing having one side open; a vibration unit including a plurality of vibration modules provided in at least two regions corresponding to both sides of the housing; and a control unit for sensing a control signal including information on a vibration pattern for each of the plurality of vibration modules and controlling the plurality of vibration modules to output the vibration pattern, wherein the vibration pattern is related to event information that is generated in an external terminal device.

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：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.