Patent ID: 8695487
Filing Date: 2014-04-15
Classification: F24C

Abstract:
1. A cooking appliance comprising: a main casing; a water tank placed within the main casing; a steam generation device which has a steam generation container supplied with water from the water tank, and a steam generation heater for heating water in the steam generation container, and which serves for heating water supplied from the water tank to generate steam; a heating chamber to which steam from the steam generation device is supplied; a steam-generation-container temperature sensor for detecting a temperature of the steam generation container; a steam-generation-heater control part which, in cooking in which steam from the steam generation device is supplied into the heating chamber, with supply of water from the water tank to the steam generation container, repeats turn-on and -off of the steam generation heater while there is water in the steam generation container by controlling the steam generation heater so that a temperature of the steam generation container detected by the steam-generation-container temperature sensor falls within a target temperature range; and a steam-generation-function decision unit for, based on a ratio of OFF-time to ON-time in ON/OFF operation of the steam generation heater, deciding whether or not it is a halt of steam generation function including emptiness of water in the water tank, in cooking in which steam from the steam generation device is supplied into the heating chamber, wherein when the ratio of OFF-time to ON-time in ON/OFF operation of the steam generation heater is larger than a specified value, the steam-generation-function decision unit decides that it is a halt of the steam generation function including emptiness of water in the water tank.