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公开(公告)号：US11712146B2
公开(公告)日：2023-08-01
申请号：US16943288
申请日：2020-07-30
Applicant: LG ELECTRONICS INC.
Inventor： Moohyun Ko , Sungjun Kim , Donggeun Lee
IPC: A47L11/40 , A47L11/282
CPC classification number: A47L11/4083 , A47L11/282 , A47L11/4038 , A47L11/4066 , A47L11/4088 , A47L11/4061 , A47L2201/00 , A47L2201/04
Abstract: A robot cleaner includes a water tank forming a space to store water, a body forming an exterior and having a housing which forms a space in which the water tank is mounted, a pair of spin mops rotatably mounted at a lower side of the body, a first nozzle provided at the housing, a second nozzle provided at the tank and configured to couple to the first nozzle, and a fixing part generating a magnetic force when the tank is mounted in the housing to fix an arrangement of the tank mounted in the housing. The fixing part includes a fixing device (e.g., a magnet or metal) provided around a circumference of the second nozzle and a response fixing device (e.g., a magnet or metal) provided around a circumference of the first nozzle and having a shape corresponding to the fixing device. The first nozzle and the second nozzle are attached to each other by the fixing device and the response fixing device.
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公开(公告)号：US11700990B2
公开(公告)日：2023-07-18
申请号：US16944355
申请日：2020-07-31
Applicant: LG ELECTRONICS INC.
Inventor： Moohyun Ko , Sungjun Kim , Donggeun Lee
IPC: A47L11/40 , B25J11/00 , A47L11/283
CPC classification number: A47L11/4083 , A47L11/283 , A47L11/4025 , A47L11/4038 , A47L11/4075 , A47L11/4088 , B25J11/0085
Abstract: A robot cleaner includes a main body forming an exterior and having a water tank housing formed at a rear side thereof. The water tank housing may form a space in which a water tank is mounted. At least one spin mop is rotatably provided at a lower side of the main body, moving the main body by rotating, and configured to clean a floor using water in the water tank. A supply nozzle is provided at one side of the water tank housing, and when connected to a discharge nozzle of the water tank, communicates with the discharge nozzle to supply water stored in the water tank to each of the spin mops. The robot cleaner further includes a locking device rotatably provided at a position spaced apart from a circumferential surface of the water tank housing, and configured to secure the water tank in the water tank housing when mounted or to release the water tank by pushing backward on the water tank.
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公开(公告)号：US11412908B2
公开(公告)日：2022-08-16
申请号：US16944375
申请日：2020-07-31
Applicant: LG ELECTRONICS INC.
Inventor： Moohyun Ko , Donggeun Lee
IPC: A47L11/40
Abstract: A robot cleaner may have a body, a mop, and a tank to supply water to the mop. The tank may be magnetically coupled to the body via at least one magnet and be physically coupled to the body via a groove and a protrusion The protrusion may be a bent rib extending from the tank to couple to a groove in the body, or the protrusion may be a stopper attached to a spring attached to the body and coupling with a groove in the tank. The at least one magnet may be provided at a first side with respect to a left-right center, and the protrusion and groove may be provided at a second side opposite the first side. To remove the tank from the body, the tank may be pulled near the magnet to detach the tank at the magnet, and the tank may be rotated at a point on the second side.
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公开(公告)号：US11296643B2
公开(公告)日：2022-04-05
申请号：US16919660
申请日：2020-07-02
Applicant: LG Electronics Inc.
Inventor： Seongju Kim , Donggeun Lee
Abstract: A motor driving apparatus for a home appliance includes: a power supply part configured to supply DC power, a DC-Link capacitor connected to the power supply part, an inverter connected to the DC-Link capacitor and comprising a plurality of switching elements, the inverter being configured to convert, by operating the plurality of switching elements, the DC power into AC power and output the converted AC power to a motor, a DC-Link resistor element disposed between the DC-Link capacitor and the inverter, a signal generator connected to the DC-Link resistor element and configured to generate and output a plurality of signals based on an output current flowing through the DC-Link resistor element, and a controller configured to control the inverter based on the plurality of signals received from the signal generator.
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公开(公告)号：US11221007B2
公开(公告)日：2022-01-11
申请号：US16658804
申请日：2019-10-21
Applicant: LG ELECTRONICS INC.
Inventor： Donggeun Lee , Sungchoon Kim
Abstract: A compressor is provided that may include a refrigerant flow path provided in a rotational shaft so as to guide a refrigerant gas. The rotational shaft operates a compression device using a drive force of an electric motor. In such a structure, the refrigerant gas may be directly discharged to a discharge space without passing through other portions such that flow path resistance may be minimized.
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Patent Agency Ranking
16.发明授权公开(公告)号：US11111920B2
公开(公告)日：2021-09-07
申请号：US16659884
申请日：2019-10-22
Applicant: LG ELECTRONICS INC.
Inventor： Donggeun Lee , Kyojin Kim
Abstract: A suction valve assembly for a compressor and a compressor having a suction valve assembly. The suction valve assembly may include a body that connects a compression chamber of the compressor with an accumulator, and a lifting/lowering valve provided in the body. The lifting/lowering valve may be moved upward by a pressure difference between an inner space of the accumulator and an inner space of the compression chamber when operation of the compressor stops and block reverse flow of oil to the accumulator. Accordingly, when operation of the compressor stops, compressed oil may be prevented from reversely flowing to the accumulator.
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公开(公告)号：US12064078B2
公开(公告)日：2024-08-20
申请号：US17556325
申请日：2021-12-20
Applicant: LG Electronics Inc.
Inventor： Daeho Chang , Ingyu Yang , Donggeun Lee
CPC classification number: A47L9/149 , A47L5/24 , A47L9/0063 , A47L9/1409 , A47L9/2873
Abstract: A cleaner system includes a cleaner and a cleaner station that performs a method for removing residual dust. The cleaner station is configured to suction dust stored in the cleaner. Residual dust in the cleaner station after suctioning dust in a dust bin of the cleaner is suctioned through a bypass hole that penetrates an outside and an inside of a suction tube.
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公开(公告)号：US11849568B2
公开(公告)日：2023-12-19
申请号：US17010935
申请日：2020-09-03
Applicant: LG Electronics Inc.
Inventor： Seongju Kim , Donggeun Lee
CPC classification number: H05K7/20909 , A47L9/2842 , A47L9/2889 , H02K11/33 , H02P27/06
Abstract: A motor driving apparatus for a cleaner includes a DC terminal capacitor, an inverter including switching elements configured to convert the DC power into AC power, a motor configured to operate the inverter, an impeller connected to the motor and configured to circulate air, and a printed circuit board having a first surface that mounts the switching elements and faces toward the motor and the impeller, and a second surface that mounts the DC terminal capacitor. The printed circuit board includes circuit elements mounted on a first area of the first surface and configured to carry a current having a level greater than or equal to a predetermined level. The first area is positioned in a flow path of the air circulated by the impeller.
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公开(公告)号：US11457783B2
公开(公告)日：2022-10-04
申请号：US16874416
申请日：2020-05-14
Applicant: LG ELECTRONICS INC.
Inventor： Dongjae Lee , Moohyun Ko , Hyeri Kwon , Donggeun Lee
Abstract: Provided is a cleaner. The cleaner includes a housing provided with a dust container at a lower side thereof having a suction opening, a filter part configured to filter dust from air suctioned through the suction opening, the filter being spaced apart from an inner circumferential surface of the housing, a movable part configured to be elevated between a first position and a second position in a space between the outside of the filter part and the inner circumferential surface of the housing, a manipulation part of which at least a portion is exposed to outside of the housing, the manipulation part being elevated by user's manipulation, and a transfer unit of which at least a portion is accommodated in the housing, the transfer unit being configured to connect the manipulation part to the movable part. The dust container has an elevation groove, which is recessed outward from an inner surface of the dust container, in a vertical direction.
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公开(公告)号：US20210030249A1
公开(公告)日：2021-02-04
申请号：US16944355
申请日：2020-07-31
Applicant: LG ELECTRONICS INC.
Inventor： Moohyun Ko , Sungjun Kim , Donggeun Lee
IPC: A47L11/40 , A47L11/283 , B25J11/00
Abstract: A robot cleaner includes a main body forming an exterior and having a water tank housing formed at a rear side thereof. The water tank housing may form a space in which a water tank is mounted. At least one spin mop is rotatably provided at a lower side of the main body, moving the main body by rotating, and configured to clean a floor using water in the water tank. A supply nozzle is provided at one side of the water tank housing, and when connected to a discharge nozzle of the water tank, communicates with the discharge nozzle to supply water stored in the water tank to each of the spin mops. The robot cleaner further includes a locking device rotatably provided at a position spaced apart from a circumferential surface of the water tank housing, and configured to secure the water tank in the water tank housing when mounted or to release the water tank by pushing backward on the water tank.
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