公开(公告)号：US20200329932A1

公开(公告)日：2020-10-22

申请号：US16960629

申请日：2019-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Jongchan LEE ,  Geunbae HWANG ,  Goondong PARK

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

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：US20240090643A1

公开(公告)日：2024-03-21

申请号：US18274179

申请日：2022-01-25

Applicant: LG ELECTRONICS INC.

Inventor： Kwangwoon AHN ,  Goondong PARK ,  Kyungseok MIN

IPC: A45D20/12 ,  F04D29/66

CPC classification number: A45D20/12 ,  F04D29/66

Abstract: A hairdryer is disclosed. The hairdryer according to an embodiment of the present invention comprises a body part and a handle part, wherein the body part includes a body extension part which extends into a gas flow channel, and the handle part includes: a handle case which forms at least a part of the appearance of the handle part, in which the gas flow channel is formed, and into which the body extension part is inserted; a fan unit which is provided in the gas flow channel to move gas; and a handle frame which is provided in the gas flow channel, is coupled to the fan unit, and is coupled to the body extension part to fix the fan unit.

公开(公告)号：US20240382054A1

公开(公告)日：2024-11-21

申请号：US18667210

申请日：2024-05-17

Applicant: LG ELECTRONICS INC.

Inventor： Dongrak CHOI ,  Geunbae HWANG ,  Goondong PARK

IPC: A47L9/00

Abstract: A noise reduction device according includes: a guide flow path guiding air discharged through an air outlet; a first flow path having a first end communicating with the guide flow path and a second end that is open, the first flow path extending in a first direction; and a second flow path having a first end connected between the first end and the second end of the first flow path and a second end that is closed, the second flow path extending in a second direction intersecting the first direction, wherein the guide flow path overlaps the second flow path in the first direction.

公开(公告)号：US20210193106A1

公开(公告)日：2021-06-24

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. The noise reduction device measures noise generated from a machine room of the refrigerator and outputs a sound signal having a frequency canceling or reducing the noise.

公开(公告)号：US20200337510A1

公开(公告)日：2020-10-29

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

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：US20170053634A1

公开(公告)日：2017-02-23

申请号：US15240676

申请日：2016-08-18

Applicant: LG ELECTRONICS INC.

Inventor： Geunbae HWANG ,  Jaehyun KIM ,  Goondong PARK

IPC: G10K11/16 ,  A47L9/00 ,  G10K11/172

CPC classification number: G10K11/161 ,  A47L9/0081 ,  A47L9/22 ,  G10K11/172

Abstract: A suction unit includes a suction motor for generating air flow; a noise reduction unit which surrounds the suction motor and acts as a resonator in order to reduce noise generated during the operation of the suction motor; and a motor chamber which surrounds the noise reduction unit. The noise reduction unit includes an air flow path which provide a path of air flowing by the suction motor, a noise reduction chamber for eliminating the noise of at least one frequency band, and at least one communicating hole which causes sound wave of the noise to enter the noise reduction chamber. The air flow path is divided from the noise reduction chamber and thus the sound wave of the noise enters the noise reduction chamber through the communicating hole during a process in which air passes through the air flow path.

Abstract translation: 抽吸单元包括用于产生空气流的抽吸马达; 噪声降低单元，其围绕所述抽吸马达并用作谐振器，以便减少在所述抽吸马达的操作期间产生的噪声; 以及围绕降噪单元的电动机室。 噪声降低单元包括：空气流路，其设​​置由吸引电动机流动的空气的路径;噪声降低室，用于消除至少一个频带的噪声;以及至少一个连通孔，其产生噪声的声波 进入降噪室。 空气流路与降噪室分离，噪声声波在空气通过空气流路的过程中通过连通孔进入降噪室。