Lg Electronics Inc.

Kiwon Noh

Kyunyoung Lee

Youngmun Lee

Kyungmin Lee

Kwangwoon Ahn

Kichul Choi

Joonsung Park

Jeehyun Kim

Donghan Kim

Junghae Kim

Jongwoo Lee

Youngpil Kim

Sungchul Gong

Yunhyeok Yu

Sunghyun Ki

Hyeongjun Lim

Eonpyo Hong

Sanghyun Lim

Jungsik Park

Jeonguk Byun

Kyeongbae Park

Kyoungkyu Lee

Simoon Jeon

Donghyeok Kwon

An elastic body and a linear compressor including the elastic body are provided. The elastic body according to an aspect of the present disclosure includes a plurality of elastic units disposed circumferentially around an axis, each of the plurality of elastic units has a corresponding shape, each of the plurality of elastic units includes an elastic portion that is spirally formed while moving away from the axis, an outer portion disposed on an outside of the elastic portion in a radial direction thereof, and an inner portion disposed on an inside of the elastic portion in the radial direction thereof, the outer portion is adjacent to the outer portion of an adjacent elastic unit, the inner portion is adjacent to the inner portion of the adjacent elastic unit, and a slit is formed between the plurality of elastic portions.

Elastic body and linear compressor including the same

A linear compressor includes a shell and a frame disposed in the shell, where the frame includes a body portion and a flange portion extending in a radial direction from a front of the body portion. The linear compressor further includes a cylinder coupled to an inside of the body portion, a piston disposed in the cylinder and configured to reciprocate axially, a drive unit coupled to a rear surface of the flange portion, a stator cover coupled to a rear surface of the drive unit, and a heat dissipation member coupled to the drive unit and disposed between the rear surface of the flange portion and a front surface of the stator cover.

Linear compressor

A linear compressor is provided. The linear compressor includes a shell, a frame disposed in the shell, the frame including a body portion and a first flange portion extending radially from a front of the body portion, a cylinder fixed to the body portion, and a piston disposed in the cylinder and configured to reciprocate axially. The first flange portion includes a hole penetrating a front surface and an inner surface of the first flange portion.

A linear compressor includes a shell including an intake pipe configured to suction a refrigerant, a cylinder provided inside the shell, a piston configured to reciprocate inside the cylinder, the piston including a piston body and a piston flange, and an intake muffler coupled to the piston and configured to flow a refrigerant suctioned through the intake pipe into the piston body and reduce a flow noise of the suctioned refrigerant. The intake muffler includes a first muffler disposed in the piston body, a second muffler disposed below the first muffler and configured to communicate with the first muffler, and a third muffler configured to accommodate a portion of a rear end of the first muffler and the second muffler.

A linear compressor includes a casing, a back cover supported in the casing, an intake flow path member coupled to the back cover, and an intake muffler of which at least a portion linearly reciprocates inside the intake flow path member. The intake flow path member includes a first hole that is formed in a front surface and is penetrated by the intake muffler, and a flow path guide that extends axially forward from a rear surface and has an opened front and an opened rear. A noise of a refrigerant passing through the intake flow path member can be reduced through an expansion space between the flow path guide and an inner surface of the intake flow path member.

A compressor includes a cylinder configured to form a compressed space of the refrigerant and having a cylindrical shape, a piston configured to reciprocate axially in the cylinder and comprising a guide portion having a cylindrical shape and a head portion disposed in front of the guide portion, an intake valve disposed at a front of the head portion, a fixing member disposed outside the piston, a rod comprising one end disposed at the head portion and configured to extend axially, a first elastic member connected to the fixing member and other side of the rod, a second elastic member disposed to be spaced apart from a rear of the first elastic member and connected to the fixing member and the other side of the rod, and a first spacer insert-injected with the first elastic member and the second elastic member.

Compressor

A linear compressor includes: a shell including an intake pipe configured to suction a refrigerant, a piston including a piston body, an intake muffler including a first muffler that includes a first muffler body defining a main flow passage and a first muffler flange extending in a radial direction from the first muffler body, and at least one auxiliary flow passage disposed between an outer peripheral surface of the first muffler body and an inner peripheral surface of the piston body and configured to guide the refrigerant remaining between the first muffler body and the piston body to an outside of the piston. A cross-sectional area of the at least one auxiliary flow passage is less than a cross-sectional area of an inlet hole provided at a rear end of the main flow passage and greater than or equal to 10% of the cross-sectional area of the inlet hole.

Provided are a discharge plenum integrated with a valve stopper and a linear compressor including the discharge plenum. The valve stopper includes a radial member that extends radially and an axial member that extends axially from a radial inner end of the radial member. The axial member may have a tubular shape. The axial member may define a slot flow path that extends axially. The radial member may include a peripheral hole that extends axially. The radial inner side of the radial member may define a central hole of the axial member. The slot flow path and the peripheral hole may minimize a pressure drop and energy loss of a high-pressure fluid flowing from a compression portion to a discharge portion.

Compressor including discharge plenum

A linear compressor includes a cylinder, a frame, and a discharge unit. The discharge unit includes a discharge cover coupled with the frame, a discharge plenum disposed inside the discharge cover to define a plurality of discharge spaces, and an insulating plenum provided in a shape corresponding to an inner surface of the discharge cover to contact the inner surface of the discharge cover.

A linear compressor includes a frame, a cylinder disposed in the frame, a piston disposed in the cylinder and configured to reciprocate relative to the cylinder along an axis of the cylinder, a discharge valve disposed forward relative to the piston, and a discharge cover assembly coupled to the frame and disposed forward relative to the piston. The discharge cover assembly includes a discharge cover forming an inner space, a first discharge plenum disposed in the discharge cover and configured to partition the inner space into a plurality of discharge spaces, and a second discharge plenum disposed forward relative to the first discharge plenum and being in close contact with an inner surface of the discharge cover.

A piston for a compressor and a compressor including the same are disclosed. The piston is used in a compressor which compresses and discharges refrigerant suctioned into a cylinder. The piston includes a cylindrical slider and a head. The slider has an outer diameter corresponding to an inner diameter of the cylinder and defines a suction space in which the refrigerant suctioned in the cylinder is received. The head is coupled to the slider, in which a compression space is provided in the front and a suction space is provided in the rear, and in which a suction port communicating with the suction space and the compression space is formed, in which the head includes an inner body and an outer body surrounding the inner body, and the suction port is formed between the inner body and the outer body.

Piston for compressor and compressor having same

The present invention relates to a linear compressor. A discharge unit of the linear compressor according to an aspect of the present invention includes a discharge cover coupled with the frame. In addition, the discharge cover includes a cover flange portion and a chamber portion. At this time, the cover flange portion includes a flange main body having a main body penetration portion and a main body extension portion provided outward in a radial direction so as to face the main body penetration portion, and a flange coupling portion having a flange coupling hole into which a fastening member for coupling with the frame is inserted.

A compressor includes a casing, a piston accommodated in a cylinder disposed inside the casing to reciprocate forward and backward, the piston being configured to define a suction space in which a refrigerant is accommodated therein, a suction muffler connected to the piston to guide the refrigerant to the suction space, a suction guide disposed behind the suction muffler and fixed to the casing, the suction guide being disposed parallel to the suction muffler in an axial direction, and a suction pipe passing through the casing to extend into the suction guide, the suction pipe being configured to suction the refrigerant. A portion of the suction muffler is disposed to overlap the suction guide in a direction crossing the axial direction.

Linear compressor with suction guide and suction muffler

A piston for a compressor is disclosed. The piston for the compressor compressing and discharging a refrigerant sucked into a cylinder includes a sliding portion disposed in the cylinder and having a suction space to receive the sucked refrigerant, a head portion coupled to the sliding portion, a compression space being formed at a front of the head portion and the suction space being formed at a rear of the head portion, the head portion comprising a suction port communicating the suction space with the compression space, a press-fit cap coupled to the front of the head portion, the press-fit cap comprising a suction hole connected to the suction port, and a first elastic member disposed between the press-fit cap and the head portion. A gas layer is formed between the head portion, the press-fit cap, and the first elastic member.

Piston for compressor

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.

Growing community of inventors

Seoul, South Korea

Kiwon Noh