Abstract: A cooking appliance employing microwaves is provided. The cooking appliance employing microwaves includes a first microwave generating unit for generating and outputting a plurality of microwaves so as to heat an object in a cavity; and a second microwave generating unit for generating and outputting microwaves differing from those of the first microwave generating unit, so as to heat the object in the cavity. In this way, operating efficiency can be improved.

Abstract: 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.

Abstract: The present invention relates to a cooking appliance employing microwaves. According to the present invention, a cooking appliance employing microwaves comprises: a microwave generator for generating and outputting microwaves, provided with an amplifier for performing frequency oscillation and amplification; and a feeder for outputting the outputted microwaves into a cavity. Accordingly, high power microwaves can be easily generated without a separate frequency oscillator.

Abstract: The present invention relates to a cooking apparatus using microwaves. The cooking apparatus using microwaves according to an embodiment of the present invention, comprises: a microwave generator which generates a plurality of microwaves to heat an object inside a cavity and then outputs the generated microwaves; and a controller which calculates heating efficiency with respect to each of the plurality of microwaves based on the microwaves reflected from the inside of the cavity among the outputted microwaves, and then sets heating time with respect to each microwave during a heating period of time according to the calculated heating efficiency.

Abstract: The prevent invention relates to a cooking appliance employing microwaves. The cooking appliance employing microwaves according to the present invention comprises: a first microwave generating unit for generating and outputting a plurality of microwaves so as to heat an object in a cavity; and a second microwave generating unit for generating and outputting microwaves differing from those of the first microwave generating unit, so as to heat the object in the cavity. In this way, operating efficiency can be improved.

Abstract: A microwave cooker comprises a body having a cooking chamber therein, the cooking chamber having one opened side, a microwave source disposed at the body for supplying microwave to the cooking chamber, a door coupled to the body for opening and closing the cooking chamber, and a multi-stage choke seal formed at the door and having different resonant frequencies and different LC resonant circuits for preventing the microwave from being leaked between the body and the door.

Abstract: A deodorization device of a cooking apparatus and a cooking apparatus having the deodorization device are disclosed. Because a discharge space is formed between first and second discharging units and air containing an odorant material entirely passes through the discharge space, the odorant material in the discharge space can be effectively removed. In addition, because the second discharging unit includes a plurality of electrode protrusions protrusively formed to be in contact with the first discharging unit, strong plasma can be generated in the vicinity of the electrode protrusions, so the deodorization effect can be improved. Moreover, because the plurality of electrode protrusions and the first discharging unit are disposed to be separated from each other, a phenomenon that end portions of the electrode protrusions are abraded when high temperature plasma is generated can be minimized, and thus, the life span can be lengthened.

Abstract: A heating apparatus using an electromagnetic wave is disclosed, by which cut-of performance of an electromagnetic wave is enhanced by increasing an electromagnetic wave absorption bandwidth having cut-off performance below ?70 dB. The present invention includes a door provided to an open front side of a body to be opened/closed and a choke filter having a panel type choke part arranged by at least one row each along an edge of the door and a filter part arranged by at least one row each along an edge of the choke part and having a plurality of slots, wherein a prescribed choke part is provided to a most inner side among rows of the choke and filter part.

Abstract: A microwave cooker comprises a body having a cooking chamber therein, the cooking chamber having one opened side, a microwave source disposed at the body for supplying microwave to the cooking chamber, a door coupled to the body for opening and closing the cooking chamber, and a multi-stage choke seal formed at the door, having different resonant frequencies at a frequency region higher than a central frequency of microwave, and having different LC resonant circuits for preventing the microwave from being leaked between the body and the door.

Abstract: A heating apparatus using an electromagnetic wave is disclosed, by which cut-of performance of an electromagnetic wave is enhanced by increasing an electromagnetic wave absorption bandwidth having cut-off performance below ?70 dB. The present invention includes a door provided to an open front side of a body to be opened/closed, a choke filter having a panel type choke part arranged by at least one or more rows along an edge of the door and a filter part arranged by at least one or more rows along the choke and having a plurality of slots wherein a prescribed choke part is provided to a most inner side, a glass panel attached to an inner lateral side of the door and the choke filter, and a flange part provided to an external end portion of the door along the edge of the door to lie in a same level with an inner lateral side of the glass panel.

Abstract: A heating apparatus using an electromagnetic wave is disclosed, by which a capacity of a cavity is increased and by which cut-off performance of the electromagnetic wave and facilitation of door cleaning can be enhanced. The present invention includes a door provided to an open front side of a body to be opened/closed, a choke filter having a panel type choke part arranged by at least one or more rows along an edge of the door and a filter part having a plurality of slots wherein a prescribed choke part is provided to a most outer side, and a glass panel attached to an inner lateral side of the door and the choke filter.

Abstract: A heating apparatus using an electromagnetic wave is disclosed, by which a capacity of a cavity is increased and by which cut-off performance of the electromagnetic wave and facilitation of door cleaning can be enhanced. The present invention includes a door provided to an open front side of a body to be opened/closed, a choke filter having a panel type choke part arranged by at least one or more rows along an edge of the door and a filter part having a plurality of slots wherein a prescribed choke part is provided to a most outer side, and a glass panel attached to an inner lateral side of the door and the choke filter.

Abstract: A microwave cooker comprises a body having a cooking chamber therein, the cooking chamber having one opened side, a microwave source disposed at the body for supplying microwave to the cooking chamber, a door coupled to the body for opening and closing the cooking chamber, and a multi-stage choke seal formed at the door and having different resonant frequencies and different LC resonant circuits for preventing the microwave from being leaked between the body and the door.

Abstract: A microwave cooker comprises a body having a cooking chamber therein, the cooking chamber having one opened side, a microwave source disposed at the body for supplying microwave to the cooking chamber, a door coupled to the body for opening and closing the cooking chamber, and a multi-stage choke seal formed at the door, having different resonant frequencies at a frequency region higher than a central frequency of microwave, and having different LC resonant circuits for preventing the microwave from being leaked between the body and the door.

Abstract: A microwave cooker comprises a body having a cooking chamber therein for forming an appearance of the microwave cooker, a microwave source disposed at the body for supplying microwave to the cooking chamber, a door openably coupled to one side of the body for opening and closing the cooking chamber, and a choke seal formed at the door and having a resonant frequency at a frequency region higher than a central frequency of microwave when the cooking chamber is closed by the door, for preventing the microwave from being leaked between the body and the door.

Abstract: A microwave oven door, and more particularly, an apparatus for shielding electromagnetic wave that compensates for the length of slots formed in an end of an oven door in order to improve the shielding ability capable of preventing the leakage of electromagnetic wave from the cavity. In the apparatus, a choke structure includes a choke base connected with an inner portion of the oven door, a choke inner side portion bent perpendicularly from the choke base and a choke top bent from the choke inner side portion to contact a front circumferential portion of an oven cavity. Slots are formed in the choke top and the choke inner side portion at a predetermined interval. Each slot is extended from a distal end of the choke top to a predetermined point of the choke inner side portion. The predetermined point is distanced the same as or smaller than the half of the width of the choke inner side portion from a joint between the choke top and the choke inner side portion.

Abstract: Microwave oven including a cavity for placing food therein, a magnetron for generating a microwave, a waveguide having at least two slots for guiding the microwave from the magnetron to an inside of the cavity, and a stirrer fan rotatably mounted on an inside of the cavity for varying an interfered state of the microwaves periodically, thereby heating the food more uniformly.

Abstract: A door assembly for a microwave or electric oven in which an optimum microwave-shielding frequency is not changed even though an incident angle of microwaves is changed, to enhance a user's convenience in cleaning a door. The door assembly for a microwave oven includes a door frame to open and close a cooking cavity, a door filter having a filter plate adhered to one side of the door frame, a choke portion bent to an opposite side of the cooking cavity in an edge of the filter plate, a first slot formed in a width direction of the choke portion, and a second slot formed in a length direction of the choke portion.

Abstract: A door assembly for a microwave or electric oven is disclosed, which has an improved structure in which an optimum microwave-shielding frequency is not changed even though an incident angle of microwave is changed, to obtain a user's convenience on cleaning a door. The door assembly for a microwave oven includes a door frame to open and close a cooking cavity; and a door filter having a filter plate adhered to one side of the door frame, a choke portion bent to an opposite side of the cooking cavity in an edge of the filter plate, a first slot formed in a width direction of the choke portion, and a second slot formed in a length direction of the choke portion.