Cooling system airflow sensor for a cooking appliance

Details Cooling system airflow sensor for a cooking appliance Cooling system airflow sensor for a cooking appliance

F - Mech Eng,Light,Heat,Weapons

24

C

F24C 15/00 (2006.01) F24C 7/08 (2006.01)

Patent

CA 2460952

A cooking appliance includes an oven cavity, one or more heat sources for generating hot oven gases within the oven cavity to perform a cooking operation, a controller and a cooling system. The cooling system includes a fan having a drive shaft upon which is mounted a multi-pole magnet. A Hall effect sensor is positioned adjacent to the magnet and provides pulses to the controller. Using the pulses, the controller calculates a speed of the cooling fan. If, during a cooking operation, the controller determines the fan is not operating, the cooking operation is halted. Likewise, if the controller determines the fan is operating at too low a speed, the cooking operation is halted. In either case, a corresponding fault code is generated and stored within the controller.

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