Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
  • F24C15/00—Details
  • F24C15/34—Elements and arrangements for heat storage or insulation

Definitions

• the invention relates to an oven with a baking muffle with thermal insulation.
• the object of the invention is to provide an oven with improved thermal insulation compared to the prior art, which contains no harmful components.
• the advantages that can be achieved with the design according to the invention are that providing the baking muffle with an airgel layer achieves substantially better thermal insulation than with conventional thermal insulation materials. Because of these good insulation properties With a double-walled construction of the baking muffle, for example, it is possible to build up the outer baking muffle sides in a functional unit with the cooker side parts.
• the airgel is available as granulate, powder, transparent tile and transparent film, it can be used in all areas of the oven that require thermal insulation. This means that the oven door can also be equipped with an insulation layer whose thermal insulation is better than that of the double glazing previously used.
• the baking muffle lamp is additionally separated from the baking muffle itself with an airgel layer, this can reduce heat losses from the baking muffle in the area of the lamp.
• the lamp itself is protected against excessive temperatures, for example when pyrolytic cleaning of the baking muffle.
• Another advantage of the airgel used is its good environmental compatibility. For the user of the cooker designed according to the invention, health impairment due to the insulation material is excluded.
• the hot air heating device (7) consists of a ring heater (8) and a hot air blower (9).
• the radiant heater for lower heat (6) is separated from the interior of the baking muffle (2) with a cover plate (10), the radiant heater for upper heat (5) projects freely into the baking muffle (2).
• the baking muffle (2) is double-walled.
• the space between the inner wall (11) and the outer wall (12) is filled with an insulating layer (13).
• This insulating layer consists of airgel granules, preferably silicon dioxide airgel.
• the room filled with airgel is evacuated.
• the hot air heating device (7) is separated from the interior of the baking muffle (2) by an air-permeable grille (15).
• a lamp cover is arranged in front of the baking muffle lighting (14). This lamp cover consists of two glass panes (16), between which silicon dioxide airgel in the form of a transparent film (17) is placed as a thermal insulation layer. In an embodiment not shown in the drawings, airgel granules are filled between the glass panes (16) instead of the film (17).
• the front of the baking muffle (2) is closed by an oven door (18).
• the oven door (18) is provided with a viewing window for checking the baked and roasted goods.
• This viewing window consists of two inner panes (19) which are fastened in a door frame (20) in the oven door (18).
• An airgel insulation layer is arranged between the two inner panes (19).
• the airgel can be used in the form of granules or foil or in the form of a transparent tile.
• the door frame (20) itself is filled with airgel granulate.
• an evacuation of the air in the filled gaps following the filling can improve the insulation property.
• the door frame is covered with another outer pane (21).
• a silicone seal (23) is arranged between the oven door (18) and the baking muffle edge (22) for sealing.
• FIG. 2 shows a longitudinal section through the front view of the oven (1). It can be seen here that the outside of the baking muffle simultaneously form the hearth side parts (24). This is possible due to the good thermal insulation properties of the insulation material used.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Baking, Grill, Roasting (AREA)
• Muffle Furnaces And Rotary Kilns (AREA)
• Meat, Egg Or Seafood Products (AREA)
• Electric Stoves And Ranges (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6413991

Family Applications (1)

Country Status (2)

Cited By (6)

Families Citing this family (7)

Family Cites Families (8)

• 1990
  • 1990-09-11 DE DE19904028743 patent/DE4028743A1/de not_active Ceased
• 1991
  • 1991-09-06 EP EP19910115045 patent/EP0475285A3/fr not_active Withdrawn

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