Oven, oven with probe, and cooking system

Abstract

An oven includes: a housing provided with a connector to which a temperature detection probe including a thermistor is electrically and mechanically connectable; a voltage divider resistor electrically connected in series with the thermistor to be located on an upper side with respect to the thermistor, between a power supply and a circuit ground in a case where the temperature detection probe is connected to the connector; and a temperature calculation unit configured to calculate a temperature of a detection target with which the temperature detection probe is in contact, on the basis of a voltage between the circuit ground and a connection point between the voltage divider resistor and the thermistor.

What is claimed is: 
     
         1 . An oven comprising:
 a housing provided with a connector to which a temperature detection probe including a thermistor is electrically and mechanically connectable;   a voltage divider resistor electrically connected in series with the thermistor to be located on an upper side with respect to the thermistor, between a power supply and a circuit ground in a case where the temperature detection probe is connected to the connector; and   a temperature calculation unit configured to calculate a temperature of a detection target with which the temperature detection probe is in contact, on the basis of a voltage between the circuit ground and a connection point between the voltage divider resistor and the thermistor.   
     
     
         2 . The oven according to  claim 1 , wherein the circuit ground is electrically connected to the earth. 
     
     
         3 . The oven according to  claim 1 , wherein
 the connector has
 a first connection portion electrically connected to the voltage divider resistor, and 
 a second connection portion electrically connected to the circuit ground and electrically connected to the earth via the housing, and 
   in a case where the temperature detection probe is connected to the connector,
 the first connection portion is electrically connected to one end of the thermistor, and 
 the second connection portion is electrically connected to the other end of the thermistor. 
   
     
     
         4 . The oven according to  claim 3 , wherein
 the temperature detection probe has a meter reading body made of metal, and   the meter reading body is electrically connected to the other end of the thermistor.   
     
     
         5 . An oven with a probe comprising:
 the oven according to  claim 1 ; and   a temperature detection probe electrically and mechanically connectable to the connector of the oven.   
     
     
         6 . A cooking system comprising:
 the oven according to  claim 1 ; and   a microwave oven configured to perform wired communication with the oven,   wherein a first circuit ground as the circuit ground of the oven is electrically connected to a second circuit ground of the microwave oven, and   the second circuit ground is electrically connected to the earth.