Twin baking oven, particularly built-in baking oven

Claim 2

In a double baking oven unit having two baking ovens disposed one above the other and enclosed in a common housing, one of the ovens being a microwave oven, and switching, control and operating devices for both of the ovens disposed in an upper space in the housing, cooling-air channels formed with inlet and outlet openings provided outside the two baking ovens, shielding plates thermally shielding the lower baking oven from the upper baking oven and from said cooling-air channels, said cooling-air inlet opening being located at a lower limit of the housing below the lower baking oven and below a shielding plate associated therewith, said cooling-air outlet opening as well as a blower being connected to a common exhaust channel disposed above the upper baking oven drawing air from said cooling-air inlet opening in the form of a first ventilating system, the upper baking oven being a microwave oven, and including a microwave generator with a blower therefor disposed in the upper space in the housing in addition to said blower connected to said exhaust channel, said blower associated with said microwave generator having a suction port disposed in direct vicinity of an additional cooling-air inlet opening of the housing and having an outlet port being in communication with said common exhaust channel through said microwave oven forming a second ventilating system, said suction port being disposed between said microwave oven and said additional cooling-air inlet opening for receiving air before it reaches said microwave oven.

Claim 3

In a double baking oven unit having two baking ovens disposed one above the other and enclosed in a common housing, one of the ovens beig a microwave oven, and switching, control and operating devices for both of the ovens disposed in an upper space in the housing, cooling-air channels formed with inlet and outlet openings provided outside the two baking ovens, shielding plates thermally shielding the lower baking oven from the upper baking oven and from said cooling-air channels, said cooling air inlet opening being located at a lower limit of the housing below the lower baking oven and below a shielding plate associated therewith, said cooling-air outlet opening as well as a blower being connected to a common exhaust channel disposed above the upper baking oven drawing air from said cooling-air inlet opening in the form of a first ventilating system, the upper baking oven being a microwave oven, and including microwave generator with a blower therefor disposed in the upper space in the housing in addition to said blower connected to said exhaust channel, said blower associated with said microwave generator having a suction port disposed in direct vicinity of an additional cooling-air inlet opening of the housing and having an outlet port being in communication with said common exhaust channel through said microwave oven forming a second ventilating system, a control panel for the upper baking oven disposed on the upper front side of the housing, and including a horizontal ventilating strip located above said control panel, said ventilating strip being formed with said cooling-air channel outlet opening extending over two-thirds the length thereof for exhausting hot air from said channel, said additional cooling-air channel inlet opening extending over the remaining length of said ventilating strip, said suction port of said blower associated with said microwave generator being disposed behind said inlet opening.

Claim 4

In a double baking oven unit having two baking ovens disposed one above the other and enclosed in a common housing, one of the ovens beig a microwave oven, and switching, control and operating devices for both of the ovens disposed in an upper space in the housing, cooling-air channels formed with inlet and outlet openings provided outside the two baking ovens, shielding plates thermally shielding the lower baking oven from the upper baking oven and from said cooling-air channels, said cooling air inlet opening being located at a lower limit of the housing below the lower baking oven and below a shielding plate associated therewith, said cooling-air outlet opening as well as a blower being connected to a common exhaust channel disposed above the upper baking oven drawing air from said cooling-air inlet opening in the form of a first ventilating system, the upper baking oven being a microwave oven, and including microwave generator with a blower therefor disposed in the upper space in the housing in addition to said blower connected to said exhaust channel, said blower associated with said microwave generator having a suction port disposed in direct vicinity of an additional cooling-air inlet opening of the housing and having an outlet port being in communication with said common exhaust channel through said microwave oven forming a second ventilating system, a control panel for the upper baking oven disposed on the upper front side of the housing, and including a horizontal ventilating strip located above said control panel, said ventilating strip being formed with said cooling-air channel outlet opening extending over two-thirds the length thereof for exhausting hot air from said channel, said additional cooling-air channel inlet opening extending over the remaining length of said ventilating strip, said suction port of said blower associated with said microwave generator being disposed behind said inlet opening.