Patent ID: 7348520

Claim:
An oven with a heat circulating device comprising: a housing provided in its interior with a chamber defined by an upper wall, a rear wall and a bottom wall, and a door movably combined with a front side, a grip fixed on said door, and a plurality of buttons arranged on a front side of an upper wall of said housing on said door, a tray recess formed in its bottom under said bottom wall of said chamber and bored with a water hole communicating with said chamber; a motor fixed on an outer surface of a rear wall of said chamber; a fan fixed on an inner surface of said rear wall of said chamber in front of said motor and connected and driven by said motor; an annular heater fixed around said fan to be turned on for generating heat to heat up the air in said chamber; a steaming device positioned in said chamber, and composed of a connect tube, a pump motor, an outflow tube, a heating case, an exhaust passageway and an adjuster; said connect tube having one end extending through a rear wall of said tray recess and the other end connected with said pump motor also connected with said outflow tube, said outflow tube having an outlet formed at the other end extending in said chamber, said heating case positioned in said chamber below said outlet of said outflow tube, said exhaust passageway positioned in an upper portion of said chamber and having its outer end connected with said adjuster, said adjuster having an outlet hole exposed out of said outer surface of said upper wall of said housing; a tray placed in said tray recess of said housing, a water tank formed in a nearly half portion of said tray and having a pouring hole in an upper surface, an outlet tube fixed at one side of said water tank and connected with said connect tube of said steaming device; and, said motor and said heater turned on to let said motor drive said fan in case of roasting a food in said chamber, said heater generating heat to heat up the air in said chamber and to be blown by said fan to become hot wind to circulate in a balanced condition around said chamber and around the food therein, said steaming device started to generate steam by said heating case wherein water is stored in said center hollow and heated by said heating case, the steam generated being blown by said fan to circulate in said chamber synchronously with said hot wind to circulate around the food to make the food roasted and steamed at the same time so that the food may not lose its water contained completely.