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公开(公告)号：US20210131015A1
公开(公告)日：2021-05-06
申请号：US17091954
申请日：2020-11-06
Applicant: LG Electronics Inc.
Inventor： Jeonguk LEE , Manho CHUN , Sechang KIM , Joonho PYO
Abstract: A washing machine includes a water tank, a washing tub, a pulsator, a drive motor, a drive shaft, a dewatering shaft that rotates about the same axis of the drive shaft and spins the washing tub, a coupler that is mounted to move up and down along the dewatering shaft and transmits the torque of the drive motor to the dewatering shaft, a solenoid module that moves the coupler upward in a lengthwise direction of the dewatering shaft so as to cut off torque from the drive motor to the dewatering shaft or transmit the torque to the dewatering shaft, when a magnetic field is generated by applying an electric current to a coil, and a coupler guide that rotates itself or fixes the position of the coupler, by coming into contact with the coupler when the coupler moves upward in the lengthwise direction of the dewatering shaft.
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公开(公告)号：US20210131003A1
公开(公告)日：2021-05-06
申请号：US17091949
申请日：2020-11-06
Applicant: LG Electronics Inc.
Inventor： Jeonguk LEE , Manho CHUN , Joonho PYO , Taehee LEE
Abstract: A washing machine includes a dewatering shaft for rotating a washing tub, a drive shaft for rotating a pulsator in the washing tub, a coupler that is configured to move up and down along the dewatering shaft, a solenoid module that moves the coupler upward, a coupler guide configured to be rotated by contact with the coupler when the coupler moves upward, and to maintain a position of the coupler or guide the coupler to another position when the coupler moves downward, and a controller that controls operation of the solenoid module based on applying one or more pulse signals to the solenoid module.
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公开(公告)号：US20210198832A1
公开(公告)日：2021-07-01
申请号：US17091727
申请日：2020-11-06
Applicant: LG Electronics Inc.
Inventor： Jeonguk LEE , Manho CHUN , Joonho PYO
Abstract: A control method for a washing machine includes: a mode change step in which the configuration of a coupler is moved by operating a solenoid module in such a way that a drive shaft for spinning a pulsator and a dewatering shaft for spinning a washing tub are axially coupled or decoupled; and a mode check step in which a drive motor for rotating the drive shaft is operated and the load of current outputted to the drive motor is sensed, the mode check step comprising a coupler setting step in which, if the load of current outputted to the drive motor does not satisfy a set load value, the solenoid module is operated to reposition the coupler.
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公开(公告)号：US20200095724A1
公开(公告)日：2020-03-26
申请号：US16577189
申请日：2019-09-20
Applicant: LG ELECTRONICS INC.
Inventor： Jihyun YOON , Jeongjoon ROH , Ayeong LEE , Jeonguk LEE
Abstract: A fabric treating apparatus including: a cabinet defining a treating chamber in which clothes is accommodated; a heating unit for supplying at least one of hot air and steam into the treating chamber; and a conveying device for conveying clothes positioned outside the cabinet to the inside of the cabinet, wherein the conveying device includes: a frame including at least two sliding surfaces inclined downward in a first direction, and at least two restraining surfaces that is disposed between the two sliding surfaces and defines a surface intersecting the sliding surfaces; a lifter including at least two inclined surfaces inclined downward in the first direction, and at least two intersecting surfaces that is disposed between the two inclined surfaces and defines a surface intersecting the inclined surfaces; and a drive unit which moves the lifter in a vertical direction intersecting the first direction, wherein each of the intersecting surface is disposed on an arbitrary line parallel to each of the sliding surfaces in the vertical direction.
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公开(公告)号：US20200032445A1
公开(公告)日：2020-01-30
申请号：US16521891
申请日：2019-07-25
Applicant: LG ELECTRONICS INC.
Inventor： Jeonguk LEE , Joonho PYO , Taehee LEE
Abstract: The present invention relates to a washing machine comprising an outer tub containing water, and an inner tub disposed in the outer tub to accommodate laundry and rotated about a horizontal axis. The washing machine includes: a motor for providing rotational force; an outer shaft that has a first hollow, and rotates the inner tub; an inner shaft disposed in the first hollow and rotated by the motor; a pulsator disposed in the inner tub and coupled with the inner shaft; a planetary gear train for transmitting rotational force of the motor; a carrier mover which has an outer circumferential surface that is spline-coupled to an inner circumferential surface of the outer shaft, and an inner circumferential surface that is screwed with an outer circumferential surface of the clutch carrier; and a stopper restricting movement of the carrier mover, thereby achieving various washing modes with a simple mechanism by rotating the inner tub and the pulsator.
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Patent Agency Ranking
公开(公告)号：US20180223822A1
公开(公告)日：2018-08-09
申请号：US15887423
申请日：2018-02-02
Applicant: LG Electronics Inc.
Inventor： Jongkoo LEE , Sungchul GONG , Jeonguk LEE
CPC classification number: F04B39/1066 , F04B7/04 , F04B35/045 , F04B39/0016 , F04B39/02 , F04B39/1073 , F04B53/1037 , F04B53/12 , F04B53/14
Abstract: A reciprocating compressor includes a cylinder that defines an inner space, a piston that is located in the inner space of the cylinder and that defines a compression space configured to receive refrigerant, a discharge cover that is coupled to a side of the cylinder and that defines a discharge space configured to receive refrigerant discharged from the compression space, and a valve plate that is located at a side space defined at the side of the cylinder and that partitions the side space into the compression space and the discharge space. The valve plate defines a discharge hole through which the compression space and the discharge space communicate with each other, in which the discharge hole includes an inlet that faces the compression space and an outlet that faces the discharge space. The inlet and the outlet have different shapes.
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公开(公告)号：US20220074104A1
公开(公告)日：2022-03-10
申请号：US17419089
申请日：2019-12-27
Applicant: LG Electronics Inc.
Inventor： Jeonguk LEE , Joonho PYO , Taehee LEE
Abstract: Provided is a washing machine. The washing machine includes a water tub containing water therein, a washing tub provided in the water tub to be rotated by a drying shaft, a motor rotating a driving shaft, a pulsator disposed in the washing tub, and rotated by a rotating force transmitted from the driving shaft, a coupler spline-coupled to the drying shaft, coupling (connecting) the driving shaft to the drying shaft at a connection position and separating the drying shaft from the driving shaft at a disconnection position raised from the connection position, a solenoid forming a magnetic field when current is applied thereto, a clutch supporting the coupler and disposed to be movable upwards and downwards in an axial direction, so the clutch is moved upwards by the magnetic field, the clutch including driven protrusions which extend long in a vertical direction, a clutch supporter having a plurality of support surfaces which are formed to be spaced apart from each other by a predetermined distance in a circumferential direction and support lower ends of the driven protrusions so as to prevent the clutch from moving downwards any longer when the coupler is at the connection position, the driven protrusions being located in gaps between the support surfaces when the coupler is at the connection position, and a plurality of guide surfaces formed above the support surfaces in the circumferential direction, and interfering with the upper ends of the driven protrusions while the clutch moves upwards from the connection position to the disconnection position, thus rotating the driven protrusions to positions corresponding to the support surfaces.
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公开(公告)号：US20210131014A1
公开(公告)日：2021-05-06
申请号：US17091757
申请日：2020-11-06
Applicant: LG Electronics Inc.
Inventor： Jeonguk LEE , Joonho PYO , Taehee LEE
Abstract: A washing machine includes a dewatering shaft for rotating a washing tub, a drive shaft for rotating a pulsator in the washing tub, a coupler configured to move up and down along the dewatering shaft, a solenoid configured to move the coupler, a coupler guide configured to be rotated by contact with the coupler moving upward and to fix a position the coupler or guide the coupler to move to another position by contact with the coupler, a fixed core that surrounds the solenoid, and a moving core disposed at a perimeter of the coupler and configured to move the coupler by magnetic flux. The moving core is configured to, based on moving upward to the fixed core, maintain a gap defined between the moving core and the fixed core within a set range.
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公开(公告)号：US20210131013A1
公开(公告)日：2021-05-06
申请号：US17091711
申请日：2020-11-06
Applicant: LG Electronics Inc.
Inventor： Jeonguk LEE , Manho CHUN , Sechang KIM , Joonho PYO , Taehyeon SIM
Abstract: A washing machine and a control method therefor are provided. The washing machine includes a water tank, a washing tub, a pulsator, a drive motor, a coupling flange connected to the drive motor, a drive shaft that rotates the pulsator, a dewatering shaft that rotates the washing tub, a coupler configured to move up and down along the dewatering shaft and to be placed in a first position where the coupler engages the coupling flange and in a second position where the coupler is placed above the coupling flange, a solenoid module that moves the coupler, a coupler guide configured to be rotated by the coupler and fix the coupler in the second position, and a controller configured to control the solenoid module to move the coupler.
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公开(公告)号：US20220034018A1
公开(公告)日：2022-02-03
申请号：US17503985
申请日：2021-10-18
Applicant: LG ELECTRONICS INC.
Inventor： Jeonguk LEE , Joonho PYO , Taehee LEE
Abstract: A washing machine includes a washing tub rotatably disposed to accommodate laundry, a pulsator rotatably disposed in the washing tub, a drive shaft to rotate the pulsator, a dehydration shaft to be connected to the washing tub and through which the drive shaft passes, a solenoid to form a magnetic field when a current is applied, a fixing core to surround the solenoid, and a clutch to couple and uncouple the drive shaft and the dehydration shaft. The clutch includes an armature to be lifted by a magnetic force of the solenoid, and a clutch coupler to be elevated along the dehydration shaft, perform coupling between the drive shaft and the dehydration shaft in a first position, and perform uncoupling between the drive shaft and the dehydration shaft in a second position lifted from the first position.
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