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A convection oven having an insulated oven chamber bounded by a front access door, a floor, a ceiling, two side walls, and a rear wall. An inlet air passageway, which includes a heating element, delivers heated air to the oven chamber, and an exhaust passageway exhausts air from the oven chamber. A

A convection oven having an insulated oven chamber bounded by a front access door, a floor, a ceiling, two side walls, and a rear wall. An inlet air passageway, which includes a heating element, delivers heated air to the oven chamber, and an exhaust passageway exhausts air from the oven chamber. A baffle plate spaced from the rear wall divides the oven chamber into a blower compartment and a baking compartment, which are connected by a return air opening in the baffle plate and at least one peripheral opening outwards of the return air opening. A blower fan in the blower compartment draws heated air into the oven chamber, mixes the heated air with air already inside the even chamber, circulates the mixed air throughout the oven chamber, and expels air through the exhaust passageway. To alleviate problems caused by high and low pressure zones created in diagonally opposing corners of the blower compartment by rotation of the blower fan, two pairs of diverter plates are disposed around the blower fan. These diverter plates are configured so as to reduce the air pressure in the otherwise high pressure corners and to increase the air pressure in the otherwise low pressure corners. Additionally, the diverter plates create negative pressure to draw air from the combustion chamber into the oven chamber. Each pair of diverter plates is disposed along separate diametrical axes that are perpendicular to each other. In addition, one pair of diverter plates is disposed closer to the blower fan than the other. The diverter plates cooperate with one another in such as way as to mimic air pumps that divert air away from the high-pressure corners and into the low-pressure corners. Thus, the diverter plates tend to equalize the air pressure among the corners of the blower compartment. This helps equalize the air pressure throughout the oven chamber, which in turn ensures even cooking of food.

대표청구항 ▼

A convection oven, comprising: a) an insulated oven chamber having a floor, a ceiling, a plurality of walls, and an access door; b) an inlet air passageway communicating at one end with ambient external air and at another end with said oven chamber; c) a heating element for heating air in said inlet

A convection oven, comprising: a) an insulated oven chamber having a floor, a ceiling, a plurality of walls, and an access door; b) an inlet air passageway communicating at one end with ambient external air and at another end with said oven chamber; c) a heating element for heating air in said inlet air passageway; d) an exhaust passageway communicating with said oven chamber for exhausting air therefrom; e) a baffle plate spaced from one of said walls, said baffle plate dividing said oven chamber into a baking compartment in which food is cooked and a blower compartment; f) a blower fan disposed in said blower compartment for drawing heated air from said inlet air passageway into said oven chamber, circulating the heated air in said oven chamber, and expelling air through said exhaust passageway, whereby rotation of said blower fan tends to create high pressure zones in two diagonally opposing corners of said blower compartment and low pressure zones in two other diagonally opposing corners of said blower compartment; g) a first pair of diverter plates disposed in said blower compartment on diametrically opposite sides of said blower fan; and h) a second pair of diverter plates disposed in said blower compartment on diametrically opposite sides of said blower fan; i) wherein said two sets of diverter plates are arranged so as to reduce air pressure in said high pressure zones and increase air pressure in said low pressure zones, thereby tending to equalize air pressure within said oven chamber and ensure uniform cooking of food therein.