Lg Electronics Inc.

Heung Sik Choi

Wan Soo Kim

Sung Hun Sim

Hyun Wook Moon

Young Min Lee

Jae Kyung Yang

Hyo Jin An

Sung-Hun Sim

Jin Yul Hu

Ri Na Hwang

The present disclosure relates to an apparatus and a method for estimating a state of an object to be heated based on sound which is generated when the object to be heated is heated, and providing the estimated information to other devices in an Internet of Things (IoT) environment through a 5G communication network. The heating apparatus may include a housing having a receiving space therein, a heating member disposed within the housing, a power supplier for supplying power to the heating member, a top plate disposed on the top of the housing to support the object to be heated, a sound sensor disposed on the bottom of the top plate, and a controller for predicting the state of the object to be heated by using a deep neural network model that has been trained through machine learning based on a sound signal received from the sound sensor.

Method for estimating status of heated object

Method and heating apparatus for estimating status of heated object

A magnetron includes a yoke, an upper magnet, an upper pole piece located at a lower side of the upper magnet, a fifth-harmonic-frequency choke located at an upper side of the upper pole piece, a third-harmonic-frequency at a lower side of the fifth-harmonic-frequency choke, a ceramic part located at an upper end of the fifth-harmonic-frequency choke and configured to output an electromagnetic wave including a plurality of frequencies, a fourth-harmonic-frequency choke that is bent inward from the ceramic part and that is welded to an upper end of the ceramic part, and a second-harmonic-frequency choke that is welded to the fourth-harmonic-frequency choke and that extends upward and downward along a heightwise direction. The third-harmonic-frequency choke, fifth-harmonic-frequency choke, and second-harmonic-frequency choke are configured to block harmonic frequencies of the electromagnetic wave.

Magnetron having enhanced harmonics shielding performance

Provided herein are a cooking apparatus. The cooking apparatus includes a cavity, and a microwave generator to generate and output microwaves of a plurality of frequencies to heat an object within the cavity, wherein the microwave generator includes a controller to calculate heating efficiencies based on microwaves reflected by the inside of the cavity from among the output microwaves and to calculate heating modes consisting of microwaves for heating, during a scanning session and to control the heating modes so as to achieve the equal heating time during a heating session. Thereby, the object within the cavity is uniformly heated.

Cooking apparatus and operating method thereof

Provided herein is a cooking apparatus. The cooking apparatus includes a plate forming a cavity, a microwave transmission line to transmit microwaves to the inside of the cavity, and a first metal part connected to one end of the microwave transmission line and extended in one direction so as to be parallel with the plate. Thereby, an antenna having improved efficiency is provided.

Cooking apparatus

A cooking apparatus using microwaves may include a microwave generator that generates and outputs a plurality of microwaves to heat an object in a cavity, and a controller that calculates heating efficiency of each of the plurality of microwaves based on the microwaves reflected from the cavity, and then sets heating time of each of the microwaves during a heating period of time according to the calculated heating efficiency.

Growing community of inventors

Seoul, South Korea

Heung Sik Choi