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公开(公告)号：US20240229327A9
公开(公告)日：2024-07-11
申请号：US18242881
申请日：2023-09-06
Applicant: LG Electronics Inc.
Inventor： Joohang KANG , Youngchan AHN , Junggu LEE
CPC classification number: D06F37/36 , F16H3/44 , F16H2200/2007 , F16H2200/2051
Abstract: A drive system of a washing machine includes a housing, a motor, a rotor shaft coupled to the motor and the housing, an output shaft having a part within the rotor shaft and coupled to the housing, a planetary gear set coupled to the rotor shaft and the output shaft, and an actuator configured to move the planetary gear set in a vertical direction. When the planetary gear set is moved to one side, a part of the planetary gear set is coupled to the rotor shaft to transmit a rotational force of the rotor shaft to the output shaft at a ratio of 1:1. When the planetary gear set is moved to other side, another part of the planetary gear set is coupled to the housing to reduce the rotational force of the rotor shaft at a gear ratio of n:1 and transmit it to the output shaft.
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公开(公告)号：US20230095370A1
公开(公告)日：2023-03-30
申请号：US17872698
申请日：2022-07-25
Applicant: LG ELECTRONICS INC.
Inventor： Joohang KANG , Youngchan AHN
IPC: F16K31/524 , F16K31/04
Abstract: A valve actuator includes a housing, a motor disposed on the housing, a driving gear coupled to a motor shaft of the motor, a transmission gear which is in external contact with the driving gear and rotates according to a predetermined gear ratio when the driving gear rotates, an output shaft including a main body and a plurality of protrusions radially protruding from the main body and spaced apart from each other in a circumferential direction, an output gear coupled to the output shaft and in external contact with the transmission gear, a stopper disposed in the housing and limiting a rotation radius of the output gear, and an elastic member disposed between a lower portion of the plurality of protrusions and a lower plate of the housing.
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公开(公告)号：US20240136901A1
公开(公告)日：2024-04-25
申请号：US18207519
申请日：2023-06-07
Applicant: LG Electronics Inc.
Inventor： Hyeonho HA , Joohang KANG
CPC classification number: H02K21/024 , D06F37/304
Abstract: A system for driving a washing machine includes a housing; a plurality of supports extending from the housing in a vertical direction and spaced apart therefrom in a circumferential direction; a supporter supported by the plurality of supports and extending in a circumferential direction; a stator movably coupled to the plurality of supports in a vertical direction; a rotor facing the stator; an output shaft coupled to the rotor and bearing-coupled to the housing; a plurality of cam guides extending radially inward of the stator; and an actuator for adjusting an area where the stator and the rotor face each other by moving the plurality of cam guides in a vertical direction.
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公开(公告)号：US20240063678A1
公开(公告)日：2024-02-22
申请号：US18261033
申请日：2022-01-11
Applicant: LG Electronics Inc.
Inventor： Joohang KANG , Youngchan AHN , Yongdae KIM , Jin HONG
CPC classification number: H02K3/522 , H02K1/16 , H02K15/12 , H02K2203/09
Abstract: The present invention relates to a motor assembly connection ring and a manufacturing method therefor, and a motor assembly. A motor assembly of the present invention comprises: a housing; an impeller provided in the housing; a stator provided in the housing and having a plurality of phase coils; a rotor which has a rotation shaft connected to the impeller and is disposed to be rotatable with respect to the stator; and a connection ring formed of an electric conductor and connected to one ends of the plurality of phase coils, wherein the connection ring includes: a ring-shaped body having an open side; and a plurality of phase coil connection units respectively extending in a radial direction from the body and respectively connected to ends of the plurality of phase coils. Accordingly, the production yield (stamping yield) of the connection ring can be increased.
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公开(公告)号：US20230400115A1
公开(公告)日：2023-12-14
申请号：US18209921
申请日：2023-06-14
Applicant: LG Electronics Inc.
Inventor： Joohang KANG , Youngchan AHN
IPC: F16K31/04
CPC classification number: F16K31/043 , F16K31/042 , F16K5/0694
Abstract: A valve actuator comprises: a housing defining an inner space, a motor disposed in the inner space of the housing, a gear assembly disposed in the inner space of the housing and configured to transmit, to a ball valve, a driving force of the motor, a flange coupled to the ball valve, and a plurality of fastening members that couple the flange to the housing and including screws or bolts.
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Patent Agency Ranking
公开(公告)号：US20230344297A1
公开(公告)日：2023-10-26
申请号：US18342351
申请日：2023-06-27
Applicant: LG Electronics Inc.
Inventor： Joohang KANG , Hyeonho HA , Yongdae KIM , Jin HONG
Abstract: An electric motor assembly includes a stator and a rotor configured to rotate relative to the stator. The stator includes a stator core including a yoke that has a ring shape and a plurality of teeth radially coupled to an inner surface of the yoke, a stator coil that is wound around the stator core, and an insulator disposed between the stator core and the stator coil. The insulator includes a yoke insulator that is coupled to the yoke with a first coupling tolerance defined between the yoke insulator and the plurality of tooth insulators, and a plurality of tooth insulators that are coupled to the plurality of teeth, respectively, with a second coupling tolerance defined between the yoke and the plurality of teeth. The first coupling tolerance is less than the second coupling tolerance.
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公开(公告)号：US20230054114A1
公开(公告)日：2023-02-23
申请号：US17883818
申请日：2022-08-09
Applicant: LG ELECTRONICS INC.
Inventor： Joohang KANG , Youngchan AHN , Deokkyu LEE
Abstract: A valve actuator includes a motor and a gear assembly that receives driving force of the motor and controls a valve. In the gear assembly, a power transmission gear for transmitting rotational force of an input gear to an output gear includes a selective power transmission unit. When the output gear is in physical contact with a stopper, the power transmission gear transmits the rotational force of the input gear to the output gear is blocked. Accordingly, even after the valve is actuated to close a path, the rotational force of the input gear is not transmitted to the output gear even though the motor is continuously driven.
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公开(公告)号：US20220109348A1
公开(公告)日：2022-04-07
申请号：US17406691
申请日：2021-08-19
Applicant: LG Electronics Inc.
Inventor： Joohang KANG , Hyeonho HA , Yongdae KIM , Jin HONG
Abstract: An electric motor assembly includes a stator and a rotor configured to rotate relative to the stator. The stator includes a stator core including a yoke that has a ring shape and a plurality of teeth radially coupled to an inner surface of the yoke, a stator coil that is wound around the stator core, and an insulator disposed between the stator core and the stator coil. The insulator includes a yoke insulator that is coupled to the yoke with a first coupling tolerance defined between the yoke insulator and the plurality of tooth insulators, and a plurality of tooth insulators that are coupled to the plurality of teeth, respectively, with a second coupling tolerance defined between the yoke and the plurality of teeth. The first coupling tolerance is less than the second coupling tolerance.
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公开(公告)号：US20240235350A9
公开(公告)日：2024-07-11
申请号：US18207519
申请日：2023-06-08
Applicant: LG Electronics Inc.
Inventor： Hyeonho HA , Joohang KANG
CPC classification number: H02K21/024 , D06F37/304
Abstract: A system for driving a washing machine includes a housing; a plurality of supports extending from the housing in a vertical direction and spaced apart therefrom in a circumferential direction; a supporter supported by the plurality of supports and extending in a circumferential direction; a stator movably coupled to the plurality of supports in a vertical direction; a rotor facing the stator; an output shaft coupled to the rotor and bearing-coupled to the housing; a plurality of cam guides extending radially inward of the stator; and an actuator for adjusting an area where the stator and the rotor face each other by moving the plurality of cam guides in a vertical direction.
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公开(公告)号：US20240229328A9
公开(公告)日：2024-07-11
申请号：US18242883
申请日：2023-09-06
Applicant: LG Electronics Inc.
Inventor： Joohang KANG , Youngchan AHN , Junggu LEE
CPC classification number: D06F37/36 , D06F37/262 , F16H3/44 , F16H2003/442 , F16H2057/085
Abstract: A drum washing machine includes an inner tub and a drive system coupled to the inner tub. The drive system includes a housing, a motor disposed on one side of the housing, a rotor shaft coupled to the motor and bearing-coupled to the housing, an output shaft bearing-coupled to the housing, and wherein at least part of the output shaft is disposed in the rotor shaft, a planetary gear set that a part of the planetary gear set is spline-coupled to the rotor shaft, and other part of the planetary gear set is spline-coupled to the output shaft, and an actuator moving the planetary gear set in a horizontal direction, wherein, the housing is integrally formed with the inner tub.
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