Lg Electronics Inc.

Seog Tae Kim

Kwang Ok Kang

Geun Hyoung Lee

Sang Ki Lee

Dae Sik Kim

Chun S Gong

Joo Yong Kim

Seong Yun Ryu

Young J Seo

Geun Hyung Lee

Geun Gyoung Lee

Disclosed is a microwave oven with an air cleaning function. The microwave oven includes an air cleaning button formed on a control panel of the microwave oven, a controller for determining an input signal from the air cleaning button and generating a driving signal, and a fan driving part for operating a fan disposed in the microwave oven to allow intake air to pass through a filter, thereby removing pollutants contained in the intake air.

Microwave oven with air cleaning function

The present invention provides a heating apparatus of a microwave oven. The heating apparatus includes: an upper heater installed at an upper portion of a cavity; a lower heater installed at a lower portion of the cavity and allowing an inclination to be selectively formed; a tray placed on the lower heater, for receiving a food thereon; and a motor connected to the lower heater so as to incline the lower heater on which the tray is placed.

Heating apparatus of microwave oven and food heating method

The present invention relates to a lifting device for lifting a microwave oven installed at a position right below kitchen furniture. According to the present invention, an end of a cordis fixed in the microwave oven. Further, the cordsequentially passes through a holeformed in a top plateof the microwave ovenand a through-holeformed in a bottom plateof the kitchen furniture. A stopperorwith a center holeorformed therethrough is installed in the through-holeof the kitchen furniture. That is, the cordpasses through the bottom plateof the kitchen furniturevia the center holeorof the stopperor. At this time, the stopperorlimits a one-way motion of the cordthrough the center holeor. According to the present invention, there is an advantage in that the microwave ovencan be very conveniently installed since the microwave ovencan be easily lifted to the position right below the kitchen furnitureby using the cordand the stopperor

Lifting device for microwave oven

Disclosed is an apparatus for exhausting pollutant for a microwave oven, the apparatus comprising: a sensor part formed at a predetermined portion of the microwave oven, for detecting fumes and/or moisture contained in polluted air generated during a cooking process; a controller for determining whether or not amount of the fumes and/or moisture detected by the sensor part is greater than a predetermined reference value; and a fan driving part operated, when the amount detected by the controller is greater than the reference value, by a driving signal from the controller and allowing air containing the pollutant to be inhaled and then removed from an interior.

Apparatus and method for exhausting pollutant in microwave oven

Device and method for controlling a heater in a cooker, the device including a plurality of heaters, a relay part for supplying/cutting off a power applied to the heaters, a current detecting part for detecting a current value applied to the heaters, and a controller for controlling the relay part according to the current value detected at the current detecting part and a preset current value, to adjust a preset heater operation time period for the present cooking, thereby improving a quality of cooking by solving a deviation of operation power caused by variation of heaters and/or power by compensating the cooking time period.

Device and method for controlling cooker

Disclosed is an electronic range including a cavity, in which cooking of food is to be conducted, a heater chamber arranged over the cavity, an axial-flow fan arranged in the heater chamber and adapted to generate a downward flow of air, and a heater arranged outside the axial-flow fan and adapted to generate heat of a high temperature. A convection plate is arranged between the axial-flow fan and the heater. The convection plate serves to control a flow of air circulating in the interior of the electronic range to effectively convect the heat generated from the heater into the cavity during an operation of the axial-flow fan causing a repeated procedure of downwardly introducing the downward flow of air into the cavity, and then upwardly moving the flow of air along a side wall of the cavity. In this electronic range, food disposed in the cavity is heated, using reflection heat generated by the convection plates and convection air generated by the axial-flow fan. Accordingly, it is possible to rapidly cook the food. The convection plates serve to supply hot air at a high flow rate because they have an orifice function. Accordingly, a strong flow of air is established in the cavity. This provides an effect of allowing the cavity to have a uniform temperature distribution in the whole portion thereof.

Electronic range

In a heater system for a microwave oven including an air tunnel having an suction portion and a discharge portion, formed at an upper surface of a cooking chamber, a fan assembly installed inside the air tunnel and having a circulation fan forming air flow by sucking air inside the cooking chamber through the suction portion and discharge the sucked air through the air tunnel and the discharge portion, a first heater chamber having a first heater installed inside the air tunnel and heating air discharged into the discharge portion from the air tunnel, and a second heater chamber having a second heater installed inside the air tunnel and emitting radiation heat into the cooking chamber, wherein the suction portion and the discharge portion are formed near opposite side walls of the cooking chamber.

Heater system for microwave oven

The present invention relates to a damper apparatus for a microwave oven by which the production cost and the reliability of the operation can be obtained by simplifying the structure of a damper apparatus for controlling the air flow supplied into the cavity of a microwave oven, which comprises an air duct for guiding a cooling air from the machinery compartment of the microwave oven into the cavity; a damper rotatably installed in the air duct for opening or closing the air flow in the air duct; a motor which includes a shaft directly connected to the damper to drive the damper; and a micro switch installed at one side of the air duct for detecting the opening and closing states of the damper by contacting one side of the damper.

Damper apparatus for a microwave oven

The present invention relates to a convection device of a microwave oven comprises a heater chamber formed on the out-side surface of a cooking chamber, a fan housing installed inside of the heater chamber so as to be rotational within a predetermined rotation range including an inlet hole where the air inside of the heater chamber flows into and a discharging port for providing the air into the cooking chamber, and a fan installed inner side of the fan housing for generating air flow provided into the cooking chamber through the discharging port. Accordingly, the present invention can provide the heated-air uniformity to the each portion inside of the cooking chamber.

Convection device of microwave oven

A method for detecting abnormal operation state of parts of a microwave oven including a memory, a plurality of heaters and cooling fans is provided, which includes the steps of extracting cooking data selected by a user from the memory, driving the cooling fan according to the extracted cooking data, determining whether or not to drive the heaters according to whether a driving current of the cooling fan is higher than a first preset current or not and detecting an abnormal state of the cooling fan, and determining whether or not to advance the cooling according to whether a driving current of the heaters is higher than a second preset current as the heaters are driven, and detecting an abnormal state of the heaters, so that the damage of parts or danger of fire of the microwave oven due to the malfunction of the parts may be prevented in advance, and the state of the microwave oven may be recognized in a remote place by using internet instead of visiting of a service member, since the malfunction may be checked by a simple key manipulation without disassembling the microwave oven.

Apparatus and method for detecting abnormal operation of parts of microwave oven

An improved sensor malfunction prevention apparatus for a microwave oven capable of preventing a malfunction and an infrared ray sensor from being polluted by dusts, food debris or the like from a cooking chamber, which includes a cooling fan; an air duct for guiding cooling air introduced into the interior of the microwave oven in cooperation with the cooling fan; a sensor support bracket disposed at a predetermined inner portion of the air duct; a sensor disposed at a predetermined potion of the sensor support bracket; a protective cover support disposed at the upper portion of the sensor support bracket for defining air openings between the protective cover and the sensor support bracket; and a protective cover fixed to the protective cover support.

Sensor malfunction prevention apparatus for microwave oven

An improved heating time control apparatus and a method for a microwave oven capable of detecting food temperature using an infrared ray coming from food being heated, whereby better heating time control can be possible, which includes a key input circuit for inputting a cooking menu and a food kinds; an infrared sensor circuit for detecting a surface temperature of food in accordance with the amount of infrared rays coming from food being cooked and for converting the detected temperature into a predetermined electric signal; a microprocessor for outputting a first heating time previously set in accordance with a selected menu and a second heating time previously set in accordance with a food kinds and for monitoring an output signal outputted from the infrared sensor and for outputting a result obtained by multiplying an output signal difference between points of a first heating time completion and a second heating time completion by a predetermined coefficient as a third heating time; and an output control circuit for controlling an output of microwaves in accordance with an output signal of the microprocessor.

Growing community of inventors

Changwon, South Korea

Seog Tae Kim