Lg Electronics Inc.

Woore Kim

Sangwook Hong

Beomjun Kim

Hyunwoo Noh

Changoh Kim

Seulgi Park

Jaehyuk Jang

Bio Park

Jaehyun Kim

Jae Hyuk Jang

Hongjun Cho

Sangwoo Lee

Junghoon Lee

Hyojun Kim

Cheolsoo Ko

A clothes treatment apparatus directly heats a drum accommodating clothes. The clothes treatment apparatus includes: 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. The induction module includes: 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.

Clothes treatment apparatus and control method therefor

The present invention relates to a laundry care apparatus in which an induction module heats the drum uniformly using a magnetic field to dry laundry or heat wash-water, and center and front and rear regions of the drum are uniformly heated.

Laundry treating apparatus

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.

Laundry machine having induction heater and control method thereof

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.

Washing machine and control method of washing machine

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.

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.

Disclosed is a laundry treating apparatus. The present invention includes a cabinet, a tub provided within the cabinet, a drum provided within the tub to receive a treatment target therein, the drum made of metallic material, an induction module provided to the tub to heat the drum by induction, an infrared sensor provided to the tub to measure a temperature of the drum, and a barrel lens connected to the infrared sensor so that thermal radiation radiated from the drum enters the barrel lens, wherein the barrel lens includes a guide portion guiding vertically incident thermal radiation to the infrared sensor only.

Laundry treating device

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 at least three drum motions having at least three different target RPMs respectively when drying the object.

Laundry treating apparatus having induction heater and control method thereof

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, the laundry machine may include a tub, a drum rotatably arranged in the tub to accommodate an object and provided with a through hole on an outer circumferential surface, an induction heater provided to the tub and configured to heat a heating surface of the drum opposing the induction heater on an outer surface of the drum, a motor driven to rotate the drum, a spray nozzle configured to spray water onto the heating surface of the drum opposing and heated by the induction heater to generate steam, and a processor configured to rotate the drum such that the steam is introduced into the drum through the through hole of the drum in a space between the tub and the drum.

Disclosed are an apparatus for treating laundry with an induction heater and controlling method thereof. In a laundry treating apparatus including an induction heater, the present invention includes a first step of setting a normal dry mode and an abnormal dry mode for controlling the induction heater with a output relatively lower than that of the normal dry mode, a second step of operating the induction heater in the normal dry mode, a third step of determining whether a dry load is a normal load or an abnormal load using at least one of a temperature of a drum and a current of a motor, and a fourth step of if the dry load is determined as the abnormal load, controlling the induction heater in the abnormal dry mode.

Apparatus for treating laundry and controlling method thereof

A washing machine includes: a tub; a drum; a temperature sensor configured to detect a temperature of air between the drum and the tub; an induction heater configured to heat the drum; a controller unit configured to control the induction heater within a preset control temperature range; a circuit configured to supply power to the induction heater; a first thermostat configured to operate according to a first temperature of air between the drum and the tub and open the circuit when the first temperature is a first safety control temperature; and a thermal fuse configured to operate according to a second temperature of air outside the tub and open the circuit when the second temperature is a second safety temperature corresponding to a case where the temperature of the drum is in a second safety temperature range having a larger value than the first safety temperature range.

Growing community of inventors

Seoul, South Korea

Woore Kim