公开(公告)号：US20210088039A1

公开(公告)日：2021-03-25

申请号：US16996612

申请日：2020-08-18

Applicant: LG Electronics Inc.

Inventor： Sangeun BAE ,  Sangmin LEE ,  Hyunsoo KIM ,  Dongkyun HA

IPC: F04B39/06 ,  F25B31/02 ,  F04B39/00

Abstract: A linear compressor includes a cylinder, a discharge valve, a valve spring pressing the discharge valve to close one side of the cylinder, and a spring support portion providing a support point for the valve spring to press the discharge valve. The valve spring includes a first spring arm whose center is connected to the discharge valve and extending spirally, a second spring arm spaced apart from the first spring arm by a predetermined distance with respect to an axial direction of the cylinder and extending spirally toward an outer portion according to a shape of the first spring arm, and a rubber damper connecting the first spring arm and the second spring arm and fixing relative positions of the first spring arm and the second spring arm.

公开(公告)号：US20210396224A1

公开(公告)日：2021-12-23

申请号：US17214368

申请日：2021-03-26

Applicant: LG Electronics Inc.

Inventor： Sangeun BAE ,  Sangmin LEE ,  Hyunsoo KIM ,  Dongkyun HA

IPC: F04B53/14 ,  F04B1/143 ,  F04B1/141

Abstract: A linear compressor includes a shell, a motor in the shell, a mover coupled to the motor and configured to perform a reciprocating motion in an axial direction, a cylinder disposed in the shell, a piston coupled to the mover and configured to reciprocate in the cylinder, a spring that supports the piston in the axial direction, and a spring cap inserted into an end portion of the spring. The spring cap defines a space portion that is defined inside the spring cap and has a volume separate from the inner space of the shell, and a passage portion that extends through an axial side surface of the spring cap and is configured to provide communication between the space portion and the inner space of the shell.

公开(公告)号：US20210088040A1

公开(公告)日：2021-03-25

申请号：US16938673

申请日：2020-07-24

Applicant: LG Electronics Inc.

Inventor： Hyunsoo KIM ,  Sangmin LEE ,  Sangeun BAE ,  Dongkyun HA

IPC: F04B39/12

Abstract: A linear compressor may include a shell, a shell cover, a compressor body disposed in the shell, and a support device configured to connect the compressor body to the shell cover to prevent the compressor body from contacting an inner peripheral surface of the shell. The support device includes a support spring formed with a hole in a central portion and having a spiral spring arm extending from the central portion to an outer portion, at least a portion of the outer portion being connected to the compressor body, a rigid connection portion spaced apart from the support spring by a predetermined distance, and an elastic connection portion formed to surround at least a portion of a periphery of the hole of the support spring to connect the support spring and the rigid connection portion and coupled to the shell cover.

公开(公告)号：US20170321675A1

公开(公告)日：2017-11-09

申请号：US15581155

申请日：2017-04-28

Applicant: LG ELECTRONICS INC.

Inventor： Jaeyong JANG ,  Changkyu KIM ,  Sanghyun LIM ,  Gyeoungjin JEON ,  Dongkyun HA

IPC: F04B39/00 ,  F04B37/18 ,  F04B35/04

CPC classification number: F04B39/0055 ,  F04B35/04 ,  F04B35/045 ,  F04B37/18 ,  F04B39/0027 ,  F04B39/102 ,  F04B39/121 ,  F04B39/122

Abstract: A linear compressor is provided that may include a cylinder which defines a compression space for a refrigerant and into which a piston that reciprocates in an axial direction may be inserted, a frame in which the cylinder may be accommodated, a discharge valve that selectively discharges the refrigerant compressed in the compression space for the refrigerant, a spring assembly coupled to the discharge valve, a discharge cover on which the spring assembly may be seated and having a discharge space through which the refrigerant discharged through the discharge valve may flow, and a first gasket seated inside of the discharge cover to support the spring assembly and attenuate vibration during an operation of the discharge valve.

公开(公告)号：US20170321674A1

公开(公告)日：2017-11-09

申请号：US15498694

申请日：2017-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Dongkyun HA ,  Yunhyeok Yu ,  Jongwoo Lee ,  Gyeoungjin Jeon ,  Wonhyun Jung

IPC: F04B39/00 ,  F04B35/04

CPC classification number: F04B39/0044 ,  F04B17/04 ,  F04B19/22 ,  F04B35/045 ,  F04B39/121 ,  F04B39/127

Abstract: A linear compressor is provided that may include a compressor casing including a cylindrical shell and a pair of shell that covers both ends of the shell; a frame fixed to an inside of the shell; a cylinder accommodated in the shell and defining a compression space for a refrigerant; a piston inserted into the cylinder to linearly reciprocate in an axial direction of the cylinder and compress the refrigerant provided to the compression space; a motor assembly including a motor that provides power for a linear reciprocating motion to the piston, and a motor support that supports the motor; a spring that allows a resonant motion of the piston; a back cover that supports the spring; and a stopper provided in one of the pair of shell covers and contacting the back cover when the motor assembly vibrates in a radial direction of the cylinder, thereby preventing the motor assembly from colliding with the shell.