# US 2021/0340702 A1 · Laundry treatment apparatus and method of controlling the same

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- Number: US 2021/0340702 A1
- Document ID: US20210340702A1
- Status: Published application
- Kind: A1
- Application number: 17/373,150
- Filed: 2021-07-12
- Published: 2021-11-04
- Earliest claimed: 2017-08-09
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Beomjun KIM; Bio PARK; Sangwook HONG
- Web page: https://patentgrep.com/patent/US20210340702A1

## CPC

- D06F 39/04: Heating arrangements
- D06F 37/267: {Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups (D06F37/206 takes precedence)}
- D06F 58/26: Heating arrangements, e.g. gas heating equipment (D06F58/18 takes precedence)
- H05B 6/102: {the metal pieces being rotated while induction heated}
- H05B 6/108: {for heating a fluid}
- D06F 23/04: and rotating or oscillating about a vertical axis
- D06F 34/24: Liquid temperature
- D06F 37/12: adapted for rotation or oscillation about a vertical axis
- D06F 2103/52: related to electric heating means, e.g. temperature or voltage
- D06F 2105/28: Electric heating
- D06F: LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

## Abstract

Disclosed is a laundry treatment apparatus configured to directly heat a drum containing laundry therein. The laundry treatment apparatus comprising: a cabinet forming an external appearance of the laundry treatment apparatus; a tub provided in the cabinet; a drum configured to rotate within the tub and to contain laundry therein, the drum being formed of a metallic material; an induction module provided at an outer surface of the tub and configured to heat the drum within the tub via induction by generating a magnetic field; and wherein the outer surface of the tub comprises at least one mounting portion that is configured to mount the induction module, with at least part of the at least one mounting portion being arranged radially closer to a rotational axis of the drum than a remaining portion of the outer surface of the tub.

## Claims

### Claim 1

A laundry treatment apparatus comprising:
a cabinet that defines an external appearance of the laundry treatment apparatus;
a tub provided in the cabinet;
a drum configured to rotate within the tub and to receive laundry therein, the drum being made of a metallic material; and
an induction module provided at an outer surface of the tub and configured to generate a magnetic field to heat the drum within the tub via induction,
wherein the outer surface of the tub comprises at least one mounting portion that is arranged radially closer to a rotational axis of the drum than a remaining portion of the outer surface of the tub and that is configured to mount the induction module.