Patent ID: 7878185
Filing Date: 2011-02-01
Classification: B08B,F24C

Abstract:
1. A cooking apparatus comprising: a case whose interior defines a cooking chamber for cooking food; a door configured to selectively open or close the cooking chamber; a plasma discharger connected to the case and configured to generate plasma to produce a gas, that cleans residues from the cooking chamber the plasma discharger including a first electrode which is applied with a voltage, a second electrode which is grounded, and a dielectric provided between the first and second electrodes, wherein the second electrode comprises the case; a sensor configured to detect the concentration of the gas produced during plasma discharge generation by the plasma discharger; a locking device configured to restrict opening of the door according to the gas concentration detected by the sensor; and a convection device provided in the case and configured to heat and circulate air, including the gas generated by the plasma discharger, in the cooking chamber in order to remove food residue on a surface of the case, wherein the first electrode and the dielectric do not protrude into the cooking chamber.