Induction heat cooking device capable of preheating object using an output value of an infrared sensor

摘要

An induction heat cooking device is provided that finishes preheating in a short time and maintains the temperature obtained at the finish of the preheating. When a preheating heating mode is selected as an operation mode, a control unit (8) arranged in the induction heat cooking device starts operation in a preheating mode in which a cooking container is heated with a first heating output. When an increment of an output value of an infrared sensor exceeds a first predetermined increment since the heating starts with the first heating output, the control unit causes a notification unit to notify a user that the preheating is finished, and the operation mode is changed to a waiting mode for performing heating with a second heating output that is lower than the first heating output. Further, when the user sets a heating power by means of a heating power setting unit in the preheating mode, the control unit prohibits changing to the heating power set by the user. When the user sets a heating power by means of a heating power setting unit in the waiting mode, the control unit permits changing to the heating power set by the user, and the operation mode is changed to a heating mode for performing heating with a third heating output corresponding to the heating power set by the user.

主权项

1. An induction heat cooking device comprising:
a top plate made of a material through which an infrared light is transmitted; a heating coil configured to receive a high frequency current to heat a cooking container placed on the top plate by induction; an inverter circuit configured to provide the high frequency current to the heating coil; an operation unit including an operation mode setting unit configured to set an operation mode of the inverter circuit and a heating power setting unit configured to set a heating power of the inverter circuit, wherein the operation mode includes a preheating heating mode operating at a first power setting for performing preheating before performing heating; an infrared sensor configured to detect an infrared light that is emitted from a bottom surface of the cooking container and transmitted through the top plate; a notification unit, a control unit configured to perform operations comprising:
when the operation mode is set to the preheating heating mode, causing the inverter to provide a first heating output to the heating coil;prevent any change to the heating power when a heating power setting different from the first power setting is input by the user via the heating power setting unit while the operation mode is in the preheating mode;determining an incremental output value of the infrared sensor;when the increment output value of the infrared sensor is more than a first predetermined increment value:
causing the notification unit to notify a user that the preheating is finished; andcausing the operation mode to be changed to a waiting mode in which the inverter outputs a second heating output to the heating coil that is lower than the first heating output, andwhen the user inputs a heating power setting while the operation mode is in the waiting mode, causing the operation mode to be changed to a heating mode in which the inverter outputs a third heating output to the heating coil corresponding to the heating power setting input by the user while the operation mode is in the waiting mode.