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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：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：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：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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公开(公告)号：US20230383860A1
公开(公告)日：2023-11-30
申请号：US18202484
申请日：2023-05-26
Applicant: LG Electronics Inc.
Inventor： Joohang KANG , Youngchan AHN
IPC: F16K31/04
CPC classification number: F16K31/042
Abstract: A valve actuator includes: a motor and a gear assembly transmitting a driving force of the motor to a ball valve. The gear assembly includes: an input gear coupled to a rotational shaft of the motor and rotating with the rotational shaft, an output gear spaced apart from the input gear, coupled to a stem of the ball valve, and transmitting a rotational force of the input gear to the stem, and a power transmission gear transmitting the rotational force of the input gear to the output gear and including a first gear set disposed between the input gear and the output gear. The first gear set includes a clutch shaft moving in a vertical direction, and a first gear and a second gear that are coupled to the clutch shaft and, based on vertical movement of the clutch shaft, disengage from or couple to each other.
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公开(公告)号：US20200300351A1
公开(公告)日：2020-09-24
申请号：US16678181
申请日：2019-11-08
Applicant: LG Electronics Inc.
Inventor： Youngchan AHN , Yongsik PARK , Junggu LEE
IPC: F16H57/023 , F16H61/04 , B60L50/50 , F16D23/02
Abstract: A driving apparatus for an electric vehicle comprises an input shaft comprising a first driving gear and a second driving gear, a synchronizer disposed between the first driving gear and the second driving gear and selectively coupled to the first driving gear or the second driving gear, an intermediate shaft comprising a first shift gear coupled to the first driving gear and a second shift gear coupled to the second driving gear, and an output shaft coupled to the intermediate shaft. The synchronizer comprises a first coupling ring coupled to the first driving gear and comprising a first magnet, a second coupling ring coupled to the second driving gear and comprising a second magnet, and a sleeve disposed between the first coupling ring and the second coupling ring and comprising a winding coil.
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公开(公告)号：US20240229326A9
公开(公告)日：2024-07-11
申请号：US18243875
申请日：2023-09-08
Applicant: LG Electronics Inc.
Inventor： Joohang KANG , Youngchan AHN , Junggu LEE , Yongsik PARK
CPC classification number: D06F37/304 , D06F18/00 , F16H3/78
Abstract: A drive system of a washing machine includes a rotor shaft and an output shaft; an n:1 stage positioned on the rotor shaft; a 1:1 stage positioned behind the n:1 stage, coupled to the rotor shaft and integrally rotating with the rotor shaft; a planetary gear set including a ring gear shaft surrounding a part of a circumference of the rotor shaft, and transmitting a rotational force of the rotor shaft to the output shaft at a ratio of 1:1 or by reducing at a gear ratio of n:1; a dynamic clutch coupled to the ring gear shaft between the n:1 stage and the 1:1 stage, moving in an axial direction on the ring gear shaft, and integrally rotating with the ring gear shaft; and a clutch driving portion for moving the dynamic clutch in the axial direction.
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公开(公告)号：US20240133107A1
公开(公告)日：2024-04-25
申请号：US18242883
申请日：2023-09-05
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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