公开(公告)号：US11606015B2

公开(公告)日：2023-03-14

申请号：US16971959

申请日：2019-02-21

Applicant: LG ELECTRONICS INC.

Inventor： Kichul Choi ,  Eonpyo Hong ,  Jaebeum Kim

IPC: H02K41/03 ,  F04B35/04 ,  F04B39/00 ,  F04B39/12 ,  F04B49/06 ,  H02K1/14 ,  H02K1/16 ,  H02K1/34

Abstract: In a linear motor and the linear compressor having the same according to the present disclosure, a plurality of magnets are coupled to a stator equipped with a winding coil, and a mover core made of magnetic material instead of a permanent magnet is provided on the mover, and by the magnetizing plurality of magnets in the same direction, the motor output can increase by increasing thrust instead of decreasing the centering force for the mover core. In addition, as it is applied to a two-pore motor, it is possible to easily control the mover core and to easily perform an assembly operation and a magnetization operation for the magnet. In addition, as the stator is made of a grain-oriented core, core loss may be reduced and the motor efficiency may be improved.

公开(公告)号：US11378069B2

公开(公告)日：2022-07-05

申请号：US17022881

申请日：2020-09-16

Applicant: LG ELECTRONICS INC.

Inventor： Kichul Choi ,  Youngpil Kim ,  Kiwon Noh

IPC: F04B35/04 ,  F04B39/12 ,  F04B39/00 ,  F04B53/14 ,  F04B53/00

Abstract: A compressor is disclosed. The compressor compressing and discharging a refrigerant sucked into a cylinder includes a cylinder forming a compression space of the refrigerant and having a cylindrical shape; a piston configured to reciprocate in the cylinder along an axial direction and having a cylindrical shape; a suction valve disposed at a front of the piston; a plate disposed in a rear of the piston, the plate comprising a flow groove into which the refrigerant is sucked; and a rod extending along the axial direction, one end of the rod being disposed on the suction valve, and other end of the rod being disposed on the plate.

公开(公告)号：US11143176B2

公开(公告)日：2021-10-12

申请号：US16692913

申请日：2019-11-22

Applicant: LG Electronics Inc.

Inventor： Wooju Jeon ,  Donghan Kim ,  Kichul Choi

IPC: F04B39/02 ,  F04B39/12

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：US10711773B2

公开(公告)日：2020-07-14

申请号：US15497567

申请日：2017-04-26

Applicant: LG ELECTRONICS INC.

Inventor： Seongho Ha ,  Donghan Kim ,  Jaeyoun Lim ,  Kichul Choi ,  Jungwan Heo

IPC: F04B39/00 ,  F04B39/12 ,  F04B35/04 ,  F04B39/16

Abstract: A linear compressor is provided. The linear compressor may include a piston having a first piston groove and a second piston groove.

公开(公告)号：US10151308B2

公开(公告)日：2018-12-11

申请号：US14487346

申请日：2014-09-16

Applicant: LG Electronics Inc.

Inventor： Kichul Choi ,  Kwangwoon Ahn ,  Donghan Kim

IPC: F04B53/02 ,  F04B39/02 ,  F04B35/04 ,  F04B39/12 ,  F04B53/00

Abstract: A reciprocating compressor is provided. The reciprocating compressor may include a cylinder having a compression space, a piston inserted into the cylinder to define the compression space while being reciprocated, the piston having a suction passage to communicate with the compression space, a gas bearing having at least one bearing hole that passes through the cylinder, so that a refrigerant gas may be injected between the cylinder and the piston to support the piston with respect to the cylinder, and a flow resister disposed at an outer circumferential surface of the cylinder or at one side of the cylinder to restrict a flow of the refrigerant gas flowing through or toward the at least one bearing hole.