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公开(公告)号:US11773529B2
公开(公告)日:2023-10-03
申请号:US16692847
申请日:2019-11-22
Applicant: LG Electronics Inc.
Inventor: Youngjoo Lee , Sangwook Hong
Abstract: A laundry treating apparatus includes a cabinet, a drum provided inside the cabinet and formed of a metal material for accommodating a treatment target, and an induction module spaced apart from an outer circumferential surface of the drum at a predetermined interval, inducing and heating the drum, where the induction module includes a base housing for accommodating a coil, a permanent magnet housing coupled with the base housing and provided with a holder in which a permanent magnet is accommodated, and a cover housing coupled with the permanent magnet housing, and the cover housing is coupled to the permanent magnet housing and therefore the permanent magnet is located between the permanent magnet housing and the cover housing. A joint force of the induction module may be enhanced to improve durability, and noise caused by vibration of a tub may be avoided.
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公开(公告)号:US11725330B2
公开(公告)日:2023-08-15
申请号:US17465302
申请日:2021-09-02
Applicant: LG Electronics Inc.
Inventor: Beomjun Kim , Woore Kim , Sangwook Hong
IPC: D06F39/04 , D06F34/28 , D06F34/08 , D06F33/00 , D06F25/00 , D06F58/26 , D06F37/42 , D06F58/50 , D06F105/28 , D06F103/32 , D06F33/74 , D06F34/26 , D06F33/47 , D06F58/30 , D06F34/24
CPC classification number: D06F39/04 , D06F33/00 , D06F34/08 , D06F34/28 , D06F25/00 , D06F33/47 , D06F33/74 , D06F34/24 , D06F34/26 , D06F37/42 , D06F58/26 , D06F58/30 , D06F58/50 , D06F2103/32 , D06F2105/28
Abstract: A washing machine includes: a tub; a drum; an induction heater disposed in a position spaced apart from the drum and configured to heat the drum; an input power source; a relay configured to interrupt a current applied to the coil of the induction heater from the input power source; a first processor configured to control the relay; and a safety device connected to a circuit connecting the first processor and the relay. The safety device includes: a first thermostat configured to operate according to a temperature of a first air between the drum and the tub, and open the circuit when the temperature of the first air is a first safety control temperature; and a thermal fuse configured to operate according to a temperature of a second air outside the tub, and open the circuit when the temperature of the second air is a second safety control temperature.
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公开(公告)号:US11649583B2
公开(公告)日:2023-05-16
申请号:US17899119
申请日:2022-08-30
Applicant: LG Electronics Inc.
Inventor: Youngjoo Lee , Sangwook Hong
Abstract: A laundry treating apparatus includes a cabinet, a drum provided inside the cabinet and formed of a metal material, and an induction module configured to heat the drum, The induction module includes a base housing for accommodating a coil, and a cover housing forming a moving space of heat generated from the coil, jointed to an upper portion of the base housing, the cover housing includes a through portion for discharging the heat by passing through the cover housing up and down, and the cover housing forms a section upwardly inclined toward the through portion to move the heat generated from the coil along the inclined section and discharge the heat to the through portion. It is possible to prevent a temperature of the coil from being excessively increased, and enhance durability and efficiency of the induction module by active discharge of heat generated from the coil.
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公开(公告)号:US11624138B2
公开(公告)日:2023-04-11
申请号:US16654479
申请日:2019-10-16
Applicant: LG Electronics Inc.
Inventor: Changoh Kim , Sangwook Hong
IPC: D06F33/00 , D06F39/04 , D06F39/08 , D06F103/16 , D06F103/18 , D06F105/06 , D06F105/46
Abstract: Disclosed herein are a laundry apparatus for heating a drum by an induction heater and a control method thereof. According to an embodiment, the method of controlling a laundry apparatus including a tub, a drum, an induction heating module mounted on the tub to heat the drum, and a circulation pump configured to pump wash water from the tub to an upper portion of the drum includes supplying wash water into the tub through a water supply valve, circulating the wash water by operating the circulation pump and performing fabrics soaking by driving the drum, performing heating by the induction heating module after termination of the fabrics soaking, and performing washing by driving the drum, wherein a water level of the wash water at the termination of the fabrics soaking is lower than a water level of the wash water at the termination of the water supply.
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公开(公告)号:US11542648B2
公开(公告)日:2023-01-03
申请号:US16713771
申请日:2019-12-13
Applicant: LG Electronics Inc.
Inventor: Hyunwoo Noh , Sangwook Hong
IPC: D06F25/00 , D06F58/30 , D06F33/00 , D06F105/46 , D06F103/00 , D06F103/34 , D06F103/44 , D06F105/28
Abstract: Disclosed are an object treating apparatus, and more particularly, an object treating apparatus for heating a drum using an induction heater and a control method thereof. The object treating apparatus includes a tub; a drum rotatably disposed within the tub and accommodating an object therein; an induction heater disposed on the tub and configured to heat an outer circumferential face of the drum contacting the heater; a motor to rotate the drum; and a processor configured to control an operation of the induction heater to dry the object, wherein the processor is configured to control revolution per minute (RPM) of the drum to perform, during drying: a conductive accelerating motion having a target RPM in which the object rotates integrally with the drum while the object is in close contact with an inner circumferential face of the drum; and a rearrangement motion having a target RPM lower than the target RPM of the conductive accelerating motion.
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公开(公告)号:US11519124B2
公开(公告)日:2022-12-06
申请号:US17316265
申请日:2021-05-10
Applicant: LG Electronics Inc.
Inventor: Beomjun Kim , Bio Park , Sangwook Hong
IPC: D06F39/04 , D06F23/04 , D06F37/12 , D06F37/26 , H05B6/10 , D06F58/26 , D06F103/52 , D06F105/28 , D06F34/24
Abstract: A laundry treatment apparatus is configured to directly heat a drum containing laundry therein. The laundry treatment apparatus includes: a tub; a drum configured to rotate within the tub and to contain laundry therein, the drum being formed of a metallic material; and an induction module provided at an outer surface of the tub and configured to heat a surface of the drum within the tub via induction, the induction module comprising: a coil that comprises a wire through which an electric current is configured to pass so as to generate a magnetic field; a base housing configured to accommodate the coil therein, the base housing being mounted on the outer surface of the tub; an at least one magnet configured to be arranged above the base housing in which the coil is accommodated, and arranged to be lengthwise perpendicular to a longitudinal direction of the wire of the coil.
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公开(公告)号:US11434595B2
公开(公告)日:2022-09-06
申请号:US16059115
申请日:2018-08-09
Applicant: LG Electronics Inc.
Inventor: Jae Hyuk Jang , Hyunwoo Noh , Changoh Kim , Woo Re Kim , Sangwook Hong
Abstract: Disclosed is a laundry treatment apparatus including a drum formed of a metal material and provided to accommodate laundry therein, an induction module spaced apart from a circumferential surface of the drum and provided to heat the circumferential surface of the drum via a magnetic field that is generated when current is applied to a coil, and a lifter formed of a metal material and provided in the drum to move the laundry inside the drum when the drum rotates. The lifter is provided so as to be recessed in a direction in which a distance between the induction module and the lifter, which face each other, increases.
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公开(公告)号:US11427947B2
公开(公告)日:2022-08-30
申请号:US16283120
申请日:2019-02-22
Applicant: LG Electronics Inc.
Inventor: Seulgi Park , Woore Kim , Sangwook Hong
IPC: D06F34/26 , D06F21/04 , D06F37/04 , D06F39/04 , D06F58/26 , D06F39/08 , D06F25/00 , D06F37/42 , D06F105/28 , D06F103/52 , D06F103/32 , D06F105/20 , D06F58/50
Abstract: A washing machine includes: a tub; a drum of metal material configured to be rotated in the tub; an induction heater configured to be fixed to the tub in a state of being separated from the drum, and to heat the drum; a first temperature sensor configured to have a tube of metal material heated by the induction heater and a thermistor disposed in the tube, at least a part of the tube being exposed between the tub and the drum; a second temperature sensor configured to be disposed in a position further away than the first temperature sensor from the induction heater in a circumferential direction, and detect a temperature of air between the tub and the drum; and a controller configured to control the induction heater based on a first detection value of the first temperature sensor and a second detection value of the second temperature sensor.
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公开(公告)号:US11421369B2
公开(公告)日:2022-08-23
申请号:US17170134
申请日:2021-02-08
Applicant: LG Electronics Inc.
Inventor: Beomjun Kim , Woore Kim , Bio Park , Seulgi Park , Jaehyuk Jang , Sangwook Hong , Changoh Kim , Hyunwoo Noh
IPC: D06F39/04 , D06F58/26 , D06F34/24 , D06F21/04 , D06F37/04 , D06F58/04 , D06F25/00 , D06F37/26 , D06F103/32 , D06F105/28 , D06F34/20 , D06F37/42
Abstract: The present invention relates to a clothes treatment apparatus and, more particularly, to a clothes treatment apparatus for directly heating a drum accommodating clothes. According to an embodiment of the present disclosure, provided is a clothes treatment apparatus comprising: a tub; a drum, made of a metal, which accommodates clothes and is rotatably provided inside the tub; and an induction module, provided in the tub so as to have a spacing from a circumferential surface of the drum, for generating an electromagnetic field to heat the circumferential surface of the drum, wherein the induction module comprises: a coil which is formed by winding a wire such that electric current is applied thereto to generate a magnetic field; and a base housing mounted on an outer circumferential surface of the tub, wherein the base housing is provided with a coil slot for defining the shape of the coil in such a manner that the wire is mounted therein so as to have a predetermined distance between wire and wire.
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公开(公告)号:US11359324B2
公开(公告)日:2022-06-14
申请号:US16727528
申请日:2019-12-26
Applicant: LG Electronics Inc.
Inventor: Sangwook Hong , Woore Kim , Beomjun Kim , Hyunwoo Noh
Abstract: Disclosed herein is a laundry machine. More particularly, a laundry machine for generating steam by an induction heater and a control method thereof are disclosed. According to an embodiment of the present disclosure, provided is a method of controlling a laundry machine including a tub, a drum rotatably arranged in the tub to accommodate an object and provided with a through hole on an outer circumferential surface thereof, and an induction heater provided to the tub, and configured to perform a steam operation. The steam operation may include heating a heating surface of the drum facing the induction heater by driving the induction heater, spraying, through a spray nozzle, water toward the heating surface heated in the heating operation, and rotating the drum such that the steam is introduced into the drum through the through hole in a space between the tub and the drum.
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