Patents by Inventor Joohang KANG
Joohang KANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240133105Abstract: 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.Type: ApplicationFiled: September 7, 2023Publication date: April 25, 2024Inventors: Joohang KANG, Youngchan AHN, Junggu LEE, Yongsik PARK
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Publication number: 20240133106Abstract: 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.Type: ApplicationFiled: September 5, 2023Publication date: April 25, 2024Inventors: Joohang KANG, Youngchan AHN, Junggu LEE
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Publication number: 20240136901Abstract: 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.Type: ApplicationFiled: June 7, 2023Publication date: April 25, 2024Inventors: Hyeonho HA, Joohang KANG
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Publication number: 20240133107Abstract: 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.Type: ApplicationFiled: September 5, 2023Publication date: April 25, 2024Inventors: Joohang KANG, Youngchan AHN, Junggu LEE
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Patent number: 11946563Abstract: 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.Type: GrantFiled: July 25, 2022Date of Patent: April 2, 2024Assignee: LG ELECTRONICS INC.Inventors: Joohang Kang, Youngchan Ahn
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Publication number: 20240063678Abstract: 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.Type: ApplicationFiled: January 11, 2022Publication date: February 22, 2024Inventors: Joohang KANG, Youngchan AHN, Yongdae KIM, Jin HONG
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Patent number: 11855518Abstract: An electric motor assembly includes a housing, an impeller disposed inside the housing, a stator disposed at one side of the impeller in an axial direction of the impeller, the stator comprising a plurality of coil parts, a rotor that includes a rotation shaft connected to the impeller and that is configured to rotate relative to the stator, a bracket that is coupled to the housing and supports the rotation shaft, and a connection ring that electrically connects together end portions of the plurality of coil parts.Type: GrantFiled: July 30, 2021Date of Patent: December 26, 2023Assignee: LG Electronics Inc.Inventors: Joohang Kang, Junggu Lee, Yongdae Kim, Jin Hong
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Publication number: 20230400115Abstract: 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.Type: ApplicationFiled: June 14, 2023Publication date: December 14, 2023Inventors: Joohang KANG, Youngchan AHN
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Publication number: 20230383860Abstract: 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.Type: ApplicationFiled: May 26, 2023Publication date: November 30, 2023Inventors: Joohang KANG, Youngchan AHN
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Publication number: 20230344297Abstract: 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.Type: ApplicationFiled: June 27, 2023Publication date: October 26, 2023Inventors: Joohang KANG, Hyeonho HA, Yongdae KIM, Jin HONG
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Patent number: 11728706Abstract: 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.Type: GrantFiled: August 19, 2021Date of Patent: August 15, 2023Assignee: LG Electronics Inc.Inventors: Joohang Kang, Hyeonho Ha, Yongdae Kim, Jin Hong
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Publication number: 20230095370Abstract: 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.Type: ApplicationFiled: July 25, 2022Publication date: March 30, 2023Inventors: Joohang KANG, Youngchan AHN
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Patent number: 11606007Abstract: A motor may include a shield member that screens a magnetic field between a stator and a rotor, and a moving member that controls a position of the shield member in response to an electromagnetic interaction with the stator such that the screening of the magnetic field is configured to be selectively performed. The motor may prevent a generation of a counter electromotive force or regenerative braking.Type: GrantFiled: April 10, 2020Date of Patent: March 14, 2023Assignee: LG Magna e-Powertrain Co., Ltd.Inventors: Joohang Kang, Yoonuk Kim, Junggu Lee
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Publication number: 20230067855Abstract: A valve actuator includes a motor and a gear assembly including an input gear rotated by driving force of the motor, an output gear receiving rotational force of the input gear, and at least one power transmission gear transmitting the rotational force of the input gear to the output gear. The valve actuator further includes a valve output shaft coupled to the output gear and actuated to close a path of a valve, and a selective power transmitter interrupting rotation of the output gear after the output gear is rotated at a predetermined angle by the rotational force of the input gear. After the valve is actuated to close the path, the driving force of the motor is not transmitted to the valve output shaft.Type: ApplicationFiled: July 21, 2022Publication date: March 2, 2023Inventors: Joohang KANG, Youngchan AHN
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Publication number: 20230053986Abstract: A valve actuator includes a motor and a gear assembly including an input gear rotated by driving force of the motor, an output gear receiving rotational force of the input gear, and at least one power transmission gear transmitting the rotational force of the input gear to the output gear. The valve actuator further includes a valve output shaft actuated to close a path of a valve, and a selective power transmitter selectively transmitting the rotational force of the output gear to the valve output shaft. The selective power transmitter includes a cam portion provided in at least one of the output gear and the valve output shaft. Accordingly, after the valve is actuated to close the path, the driving force of the motor is not transmitted to the valve output shaft.Type: ApplicationFiled: July 25, 2022Publication date: February 23, 2023Inventors: Joohang KANG, Youngchan AHN, Deokkyu LEE
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Publication number: 20230057656Abstract: A valve actuator includes: a housing, a motor that is disposed in the housing and that includes a motor shaft, a drive gear coupled to the motor shaft, a transfer gear that engages with the drive gear and that is configured to, based on the drive gear rotating, be rotated according to a predetermined gear ratio, an output shaft disposed in the housing, an output gear that is coupled to the output shaft and that engages with the transfer gear, and a stopper that is disposed in the housing and that is configured to control a rotation radius of the output gear. The transfer gear comprises an inner part, an outer part disposed at an outside of the inner part, a first magnet disposed at the outer part, and a second magnet that is disposed at the inner part and that faces the first magnet.Type: ApplicationFiled: January 6, 2022Publication date: February 23, 2023Inventors: Joohang KANG, Youngchan AHN, Hyeonho HA
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Publication number: 20230054114Abstract: 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.Type: ApplicationFiled: August 9, 2022Publication date: February 23, 2023Inventors: Joohang KANG, Youngchan AHN, Deokkyu LEE
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Publication number: 20220131439Abstract: An electric motor assembly includes a housing, an impeller disposed inside the housing, a stator disposed at one side of the impeller in an axial direction of the impeller, the stator comprising a plurality of coil parts, a rotor that includes a rotation shaft connected to the impeller and that is configured to rotate relative to the stator, a bracket that is coupled to the housing and supports the rotation shaft, and a connection ring that electrically connects together end portions of the plurality of coil parts.Type: ApplicationFiled: July 30, 2021Publication date: April 28, 2022Inventors: Joohang KANG, Junggu LEE, Yongdae KIM, Jin HONG
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Publication number: 20220109348Abstract: 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.Type: ApplicationFiled: August 19, 2021Publication date: April 7, 2022Inventors: Joohang KANG, Hyeonho HA, Yongdae KIM, Jin HONG
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Patent number: 11131371Abstract: A driving apparatus for an electric vehicle includes a housing, a driving motor, and a planetary gear unit. The planetary gear unit includes a ring gear fixed to the housing and a plurality of planetary gears positioned radially inward from the ring gear. The ring gear includes a ring gear main body configured as a ring-shaped flat plate extending in a radial direction, and a ring gear connection portion extending from an outer peripheral surface of the ring gear main body in an axial direction and contacting the plurality of planetary gears.Type: GrantFiled: October 21, 2019Date of Patent: September 28, 2021Assignee: LG ELECTRONICSInventors: Joohang Kang, Youngchan Ahn, Junggu Lee