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公开(公告)号:US20240382053A1
公开(公告)日:2024-11-21
申请号:US18667140
申请日:2024-05-17
Applicant: LG ELECTRONICS INC.
Inventor: Dongrak CHOI , Geunbae HWANG , Sunghyun KI
IPC: A47L9/00
Abstract: A noise reduction device for cleaners includes: a first flow path having a first end communicating with an air outlet 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 first flow path is disposed to surround the second flow path.
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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.
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公开(公告)号:US20210212530A1
公开(公告)日:2021-07-15
申请号:US17139522
申请日:2020-12-31
Applicant: LG Electronics Inc.
Inventor: Chungook CHONG , Geunbae HWANG
Abstract: A cleaner includes: a main body including a motor, a stick extending from a front side of the main body and defining, at an end thereof, an inlet hole configured to suction a substance based on an operation of the motor, and a handle disposed on the main body. The handle includes a hinge coupling portion disposed on the main body and including a hinge shaft that extends along a lateral direction of the main body and a grip portion including a hinge portion that is rotatably coupled to the hinge shaft and extending from the hinge coupling portion.
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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.
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公开(公告)号:US20240118016A1
公开(公告)日:2024-04-11
申请号:US18276683
申请日:2022-01-10
Applicant: LG ELECTRONICS INC.
Inventor: Jongchan LEE , Youngeun CHO , Sunghyun KI , Geunbae HWANG , Hyungwoo KIM , Jonghun HA
IPC: F25D23/00
CPC classification number: F25D23/006 , F25D2201/30
Abstract: A refrigerator and a noise-reducing device mounted thereto are disclosed. The disclosed noise-reducing device, which comprises a hollow resonance chamber and a tubular acoustic filter inserted into the resonance chamber, is mounted at the side surface of a machine compartment, whereby not only heat due to the operation of a compressor is charged out of the machine compartment, but also noise transmitted from the compressor to the outside of the machine compartment is reduced through diffraction and resonance effects.
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公开(公告)号:US20180159402A1
公开(公告)日:2018-06-07
申请号:US15575304
申请日:2016-05-17
Applicant: LG ELECTRONICS INC.
Inventor: Jangwon LEE , Chungook CHONG , Geunbae HWANG
CPC classification number: H02K5/15 , H02K1/2726 , H02K1/2733 , H02K1/28 , H02K5/10 , H02K7/04 , H02K15/03 , H02K15/165 , H02K21/16
Abstract: The present invention comprises: a shaft; a pair of end plates arranged to be spaced apart from each other on the shaft; a magnet disposed between the pair of end plates; and a rotor case which surrounds the outer peripheries of the pair of end plates and the outer periphery of the magnet and is made of a synthetic resin material, wherein each of the pair of end plates comprises: a flange part, one surface of which faces the magnet; and a cylinder part protruding in a direction opposite to the magnet from the flange part, and the flange part comprises a tapered part having an outer diameter which decreases toward the cylinder part.
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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.
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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
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.
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公开(公告)号:US20170055797A1
公开(公告)日:2017-03-02
申请号:US15241780
申请日:2016-08-19
Applicant: LG ELECTRONICS INC.
Inventor: Jongsu KIM , Geunbae HWANG
IPC: A47L11/40
CPC classification number: A47L11/4097 , A47L9/0081 , A47L9/22 , A47L11/4005 , A47L11/4011 , A47L11/4013 , A47L11/4027 , A47L2201/00 , A47L2201/04
Abstract: Disclosed is a robot cleaner. The robot cleaner comprising: a cleaner main body defining an external appearance of the robot cleaner, a suction unit provided in the cleaner main body for suctioning air containing dust, a dust separation unit for separating the dust from the air suctioned through the suction unit, and a fan unit connected to the dust separation unit for providing suction force to the suction unit, wherein the fan unit includes: a drive motor, a first chamber surrounding the drive motor and provided with a first suction hole and a first exhaust hole, and a second chamber surrounding the first chamber and provided with a second suction hole and a second exhaust hole, wherein the fan unit includes a cover placed at an upper side of the second suction hole for preventing noise generated from the drive motor from being emitted through the second suction hole, and wherein the cover includes: a cover part for blocking a path of noise transmitted through the second suction hole; and a support part for seating the cover part on a top of the second chamber.
Abstract translation: 公开了一种机器人清洁器。 所述机器人清洁器包括:限定机器人清洁器外观的吸尘器主体,设置在吸尘器主体中用于抽吸含灰尘的空气的抽吸单元,用于分离通过抽吸单元抽吸的空气的灰尘的灰尘分离单元, 以及风扇单元,其连接到所述除尘单元,用于向所述抽吸单元提供吸力,其中所述风扇单元包括:驱动电动机,围绕所述驱动电动机的第一室,设置有第一吸入孔和第一排气孔, 围绕所述第一室并设置有第二吸入孔和第二排气孔的第二室,其中所述风扇单元包括放置在所述第二吸入孔的上侧的盖,用于防止由所述驱动电动机产生的噪声通过所述第二吸入孔和/ 第二抽吸孔,并且其中所述盖包括:用于阻挡透过所述第二吸入孔的噪声路径的盖部; 以及用于将所述盖部分安置在所述第二室的顶部上的支撑部分。
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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。
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