公开(公告)号：US11864717B2

公开(公告)日：2024-01-09

申请号：US16960629

申请日：2019-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Jongchan Lee ,  Geunbae Hwang ,  Goondong Park

IPC: A47L9/00 ,  G10K11/178 ,  A47L9/16 ,  A47L9/28 ,  G10K11/16

CPC classification number: A47L9/0081 ,  A47L9/1641 ,  A47L9/2884 ,  G10K11/161 ,  G10K11/17883 ,  G10K2210/105

Abstract: The cleaner according to the present disclosure includes a main body forming an airflow path through which air is sucked and exhausted; a dust separation unit disposed in the airflow path and configured to separate dust from the air; a fan module disposed in the airflow path and configured to move the air in the airflow path; and a noise control module including a speaker, and configured to control the output of the speaker to increase a level of the noise of at least one range of the frequency range of 2000 Hz or more and 8000 Hz or less.

公开(公告)号：US11587545B2

公开(公告)日：2023-02-21

申请号：US17113491

申请日：2020-12-07

Applicant: LG Electronics Inc.

Inventor： Jongchan Lee ,  Youngeun Cho ,  Sunghyun Ki ,  Goondong Park ,  Geunbae Hwang

IPC: G10K11/178

Abstract: 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.

公开(公告)号：US11992168B2

公开(公告)日：2024-05-28

申请号：US16960963

申请日：2019-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Jongchan Lee ,  Geunbae Hwang ,  Goondong Park

IPC: A47L5/26 ,  A47L9/00 ,  A47L9/22 ,  A47L9/28 ,  G10K11/16 ,  G10K11/178

CPC classification number: A47L5/26 ,  A47L9/0081 ,  A47L9/22 ,  A47L9/2836 ,  A47L9/2884 ,  G10K11/161 ,  G10K11/17883 ,  G10K2210/105

Abstract: To achieve the objects described above, the cleaner according to some embodiments of the present disclosure includes a main body forming an airflow path through which air is sucked and exhausted; a dust separation unit disposed in the airflow path and configured to separate dust from air; a fan module disposed in the airflow path and configured to move the air in the airflow path; and a noise control module including a speaker and a detection unit detecting noise or vibration, and configured to cause an output of the speaker to be reduced a level of the noise of at least one frequency range of 1500 Hz or less the noise generated when the fan module is operated, based on the detection signal of the detection unit. wherein the main body includes an exhaust outlet through which air in the airflow path is exhausted and a sound outlet through which the sound of the speaker is exhausted, wherein the exhaust outlet and the sound outlet look the same direction relative to the main body.

公开(公告)号：US11982266B2

公开(公告)日：2024-05-14

申请号：US17592916

申请日：2022-02-04

Applicant: LG Electronics Inc.

Inventor： Jongchan Lee ,  Sunghyun Ki ,  Hyeongjun Lim

IPC: F04B39/00 ,  F04B35/04 ,  F04B39/02 ,  F04B39/10 ,  F04B39/12

CPC classification number: F04B39/0027 ,  F04B39/0055 ,  F04B39/0061 ,  F04B39/0066 ,  F04B39/0072 ,  F04B39/0088 ,  F04B39/0292 ,  F04B39/10 ,  F04B39/121 ,  F04B35/045 ,  F05B2210/12 ,  F05B2210/14 ,  F05B2260/962 ,  F05B2260/964 ,  F05B2280/6013

Abstract: 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.