Oven control circuitry cooling system for a double-stack food

Abstract

An oven control box cooling system is provided in a double-stack oven preparation oven arrangement having two vertically aligned food preparation ovens with respective cooking chambers and oven control circuitry. At least the oven control box of the uppermost food preparation oven is provided with a double wall assembly including a mounting wall having the oven control circuitry mounted thereon and an exterior wall spaced apart from and on the opposite side of the mounting wall from the oven control circuitry; the mounting wall and the exterior wall forming therebetween a ventilating compartment having an inlet and an outlet. A ventilating device provides a flow of air through the inlet and ventilating compartment and out the outlet to provide an insulating effect between the oven control circuitry of the uppermost oven and the heat radiating upwardly from the lowermost food preparation oven. An enclosure is mounted on the mounting wall and encloses the oven control circuitry therein, and has an intake opening and an exhaust opening in communication with the inlet in the ventilating compartment, so that a flow of cooling air is moved through the intake opening and over the oven control circuitry for the cooling thereof and then out the exhaust opening to the inlet. At least some of the outlets in the ventilating compartment have louver-like deflectors for laterally and downwardly directing the flow of exhausting air therefrom, thereby deflecting the upwardly radiating heat downwardly and laterally away from the ventilating compartment and enclosure intake openings to prevent the upwardly radiating heat from being drawn through the intake openings of the enclosure.