Lg Electronics Inc.

Sunghyun Ki

Sangmin Lee

Kyeongbae Park

Kwangwoon Ahn

Junghae Kim

Eonpyo Hong

Donghan Kim

Hyuk Jae Lee

Kichul Choi

Jihyun Yoon

Gyeoungjin Jeon

Kyeongweon Lee

Changkyu Kim

Jongchan Lee

Dongsoo Lee

Kiwon Noh

Jaeyong Jang

Hyeongjun Lim

Suho Park

Geunbae Hwang

Wonhyun Jung

Joonsung Park

Sangeun Bae

Jungsik Park

Goondong Park

Youngcheol Han

Jongchan Park

Wonsik Oh

Seungyup Kim

Sanghyun Bae

Simoon Jeon

Sungman Cho

Sangjin Sung

Youngeun Cho

Jaeyong Yang

A compressor includes: a case, a compression unit that is provided inside the case and that includes a cylinder and a piston configured to reciprocate inside the cylinder to compress refrigerant, a driving unit that includes a stator disposed inside the case and a plurality of permanent magnets configured to reciprocate with respect to the stator and that is configured to provide a driving force to the compression unit, and a resonator that is configured to reduce noises generated while the compression unit is operated, that is disposed between the compression unit and an inner surface of the case facing the compression unit in an axial direction, and that is spaced apart from the compression unit.

Compressor

A refrigerator includes a noise reduction device and a machine room that accommodates a condenser and a compressor. The noise reduction device includes a sensing unit configured to measure noise generated from the machine room of the refrigerator and a generating unit configured to output a sound signal having a frequency canceling or reducing the noise. The machine room is defined by a case that has a communication portion configured to communicate a fluid between an inside of the case and an outside of the case to thereby exchange heat between the fluid and the condenser and between the fluid and the compressor.

Refrigerator with compressor noise reduction

There is disclosed an outdoor unit an outdoor unit that may attach a cover to a case by using a magnetic member and have an empty space formed between the case and the cover as large as the thickness of the magnetic member, wherein air or a sound-proof or meta material may be filled in the empty space and a cover for covering the case of the outdoor unit may include several pieces that are detachably connected with each other like Lego pieces, and the cover may be attached to the other area of an outer surface of the outdoor unit except the area having an inlet for sucking external air and an outlet hole for discharging the external air drawn into the outdoor unit via the inlet outside again.

Outdoor unit and air conditioner including the same

A linear compressor is provided. The linear compressor may include a cylinder that defines a compression space, a piston having a plurality of suction holes through which a refrigerant is introduced into the compression space, and a muffler connected to the piston and through which the refrigerant supplied to the piston flows. The muffler may include a seat seated on one side of the piston, and a protrusion arranged inside the piston. The protrusion may include plurality of flow pipes that extends from the seat to an inside of the piston to guide the refrigerant to the plurality of suction holes and a resonator arranged at one side of the plurality of flow pipes and having a resonance space therein.

Linear compressor

A linear compressor and a refrigerator including a linear compressor are provided. The linear compressor may include a compressor casing connected to each of a suction inlet, through which a refrigerant may be introduced, and a discharge outlet, through which the refrigerant may be discharged, a compressor body mounted within the compressor casing, within which the refrigerant suctioned in through the suction inlet may be compressed due to a linear reciprocating motion of a piston in an axial direction of the compressor casing and discharged into the discharge outlet, and at least one plate spring disposed on each end of the compressor body in the axial direction.

Linear compressor and refrigerator including a linear compressor

Natural frequencies of a front side support spring and a rear side support spring of a reciprocating compressor are formed to be different such that a natural frequency of one support spring is lower than an operating frequency and a natural frequency of the other support spring is higher than the operating frequency. Both support springs may resonate in mutually opposite directions to form an antiphase, and thus, compressor vibrations may be effectively reduced without reducing a stiffness of both support springs.

Reciprocating compressor having support springs of different natural frequencies

The linear compressor is provided that may include a shell having first and second ends open, a first shell cover that covers a first end of the shell, a second shell that covers a second end of the shell, a compressor body accommodated in the shell to compress a refrigerant, a first support that supports a first end of the compressor body within the shell and coupled to the first shell cover in a state of being spaced apart from the shell, and a second support that supports a second end of the compressor body and fixed to the shell.

A linear compressor is provided. The linear compressor may include a shell having a cylindrical shape and a horizontal central longitudinal axis, a fixing bracket provided on an inner circumferential surface of the shell, a compressor body accommodated in the shell in a state of being spaced apart from the inner circumferential surface of the shell to compress a refrigerant, a support connected to the fixing bracket to support the compressor body, and a coupling member that connects the support to the fixing bracket. The support may include a plate spring and a buffer coupled to an edge of the plate spring. The coupling member may pass through the buffer and be coupled to the fixing bracket.

A linear compressor includes a cylinder that defines a compression space for a refrigerant, a frame that fixes the cylinder to a shell, a piston that axially reciprocates in an interior of the cylinder, a discharge valve that is provided in front of the cylinder to selectively discharge the refrigerator compressed in the compression space for the refrigerant, a discharge cover that is coupled to the frame and has a discharge space for the refrigerant discharged through the discharge valve, a valve spring that provides an axial resilient force to the discharge valve while supporting the discharge valve, and a valve support device that is coupled to the valve spring and supported by the frame to deliver vibration generated by the discharge valve to the frame.

A reciprocating compressor is provided. Bearing holes of a fluid bearing of the compressor may be positioned to correspond to a full reciprocating region of a piston, to reduce/eliminate frictional loss and/or abrasion between a cylinder and the piston. The bearing holes may be concentrated at certain regions of the cylinder to stably support the piston through a full reciprocating range. Compression coil springs may maintain concentric alignment of the cylinder and the piston. Gas through holes may be radially formed at the piston to lower a pressure of a bearing space and allow refrigerant to be smoothly introduced into the bearing space through a gas pocket A casing of the compressor may include an outer shell and an inner shell to attenuate vibration generated due to friction generated by operation of the reciprocating compressor.

Reciprocating compressor having casing including inner and outer shells

A compressor and a method for assembling a compressor are provided. The compressor may include a compressor casing coupled to each of a suction inlet, into which a refrigerant may be introduced, and a discharge outlet, through which the refrigerant may be discharged, a compressor body mounted inside the compressor casing to compress the refrigerant suctioned in through the suction inlet, and then discharge the refrigerant through the discharge outlet, a noise reducing member disposed between the compressor body and the compressor casing, and at least one fixing member mounted inside the compressor casing to fix the noise reducing member to an inner wall of the compressor casing.

Compressor and method for assembling a compressor

A linear compressor, a shell for a linear compressor, and a method for manufacturing a shell of a linear compressor are provided. The shell may have at least one portion having a multilayer plate, in which at least two plates may be stacked in a direction substantially perpendicular to an axis of a piston so as to accommodate a cylinder, the piston, which may be reciprocated within the cylinder, and a motor assembly directly connected to the piston to provide a drive force to the piston. At least one resonator may be disposed in or at at least a portion of an inner surface of the shell.

Linear compressor, shell for linear compressor, and method for manufacturing shell of linear compressor

A reciprocating compressor is provided that may include a shell including a vibration absorbing member formed to be wound around an outer circumferential surface or an inner circumferential surface or stacked thereon, so that compressor vibration may be attenuated by frictional contact between the shell and the vibration absorbing member or between layers of the vibration absorbing member. Also a noise insulating layer may be formed between the shell and the vibration absorbing member or between the layers of the vibration absorbing member, so that a magnitude of noise may be reduced as vibration noise passes through the noise insulating layer, whereby vibration noise of the compressor, such as noise of a high frequency band, may be further attenuated by fine vibration.

Reciprocating compressor

The present disclosure relates to reciprocating compressor. The present invention can prevent friction loss or abrasion between a cylinder and a piston, which is caused when a hydraulic bearing is blocked with a foreign substance, by preventing the foreign substance mixed in refrigerant gas from flowing into the hydraulic bearing, and can improve compressor performance by preventing a specific volume in a compression space from increasing when high-temperature refrigerant gas discharged in the compression space is cooled, such that vibration noise of the compressor can be reduced since a gas guiding part offsets vibration and the noise generated when a refrigerant is discharged in the compression space. Furthermore, the number of vibrations of a mover is increased and a driving operation for removing foreign substances is carried out to increase the number of vibrations of a cylinder such that any foreign substance stuck in a gas hole can be cleaned, thereby increasing performance and reliability of the compressor.

Reciprocating compressor and method for driving same

An linear compressor and a linear motor for a linear compressor is provided. The linear compressor may include a shell, in which a suction inlet may be provided, a cylinder disposed in the shell to define a compression space for a refrigerant, a frame coupled to an outer side of the cylinder, a piston reciprocated in an axial direction within the cylinder, a stator cover coupled to the frame, and a linear motor supported by the frame and the stator cover to provide power to the piston. The stator cover may include a body, and at least one frame coupling portion coupled to the frame. The at least one frame coupling portion may extend from the body toward the frame.

Growing community of inventors

Seoul, South Korea

Sunghyun Ki