DE1811759A1 - Electrically heated cooking oven - Google Patents

Description

File number: Name d. Note:

SIbPLEX ELECTRIC CükPANY

My mark: ο 1516

28 Bremen, November 26th, 1963

SIMlLEX ELECTRIC COMJtAKY LITITED-, Creda Works, Grindley Lane »Blythe Bridge» Stoke-on-Trent, County Stafford (England)

Electrically heated cooking oven

The invention "relates to an electrically heated cooking oven or stove with a roasting tube which has an oven chamber with an outer housing provided with an opening for the chamber and an oven door closing this opening. The invention is particularly concerned with self-cleaning ovens, dobo with such ovens, in which the temperature in dor furnace chamber to above about 470 ⁰ C increases v / can ground to thereby reduce food waste to clean the chamber "

510/03

90.9828 / 1137

It is important that the outer casing of an oven not become so hot that a user may be burned by touching the oven. In a self-cleaning process must have about two hours temperatures of at least about 4-7O ⁰ C herrschenο Therefore, it is associated with large difficulties to keep the outer housing during the self-cleaning operation of the oven at a sufficiently low temperature. The same problem occurs, albeit to a lesser extent, with normal cooking processes.

The invention aims to provide an electrically heated cook Oven are created, the outer housing when performing a self-cleaning process and so that even during normal cooking processes, the temperature does not reach such high levels that the user can feel himself can burn if the stove is touched.

This object is achieved in that the oven door between its outer and has internal parts provided, serving for cooling air duct to which the air from the end face of the outer housing connects to the rear conductive channel.

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Air-cooled oven doors of a similar type have already been proposed, but in which the cooling air flows out from the upper edge of the oven door directly onto the face of the outer housing. With this arrangement, a very biting zone can very easily arise over the oven door is where the control organs are preferably housed. The present invention overcomes this disadvantage in that the air from the oven door and from the face of the outer housing is distracted.

If the oven has an oven or stovetop with one or more heating elements, then the channel is preferably connected to a space arranged under the furnace plate. The channel but can also extend transversely to the top of the furnace chamber and the air on the rear Side, possibly near a stove exhaust.

In the following part of the description, an embodiment will be discussed of the subject matter of the invention described with reference to a drawing in which a sectional view

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an electrically heated blast furnace with a furnace plate is shown «

The furnace has a furnace chamber 10 which is formed by an inner housing 11, which is surrounded by insulating material 12 arranged within an outer housing 15. The inner and the outer housing form a forwardly facing opening which can be closed by an oven door 14. This oven door is designed in accordance with an earlier application by the applicant and has a inner panel assembly 15 and outer panel assembly 16 on. The inner panel assembly 15 comprises an inner panel 17, an outer panel 18 and insulating material 19 disposed between the panels. The inner panel assembly 15 instructs their edges on a resilient sealing strip 20, which is on an outwardly facing to the Opening of the furnace chamber extending around flange 21 comes to rest. The inner panel assembly 15 is resiliently supported on the outer panel arrangement by U-shaped spring elements 23 and is at a distance from the outer panel arrangement o A tubular component 24 closes the

9 098 2 8 / -1! 3 7 ^

Air space between the two panel arrangements. Due to convection between the outer handera however, there is some flow of the outer panel assembly 16 and the outer casing of the furnace chamber Amount of air at the circumference of the opening into the interior of the furnace chamber.

The outer panel assembly has an inner panel 25 and an outer panel 26 between them Insulating material 27 is provided.

The insulating material 27 is, however, arranged at a distance from the inner surface of the outer flap 26, so that a space comprising an air duct 28 remains free. The outer plate 26 has can enter at its lower end a slot 29 or holes through which cooling air in the air duct 28 _o The inner plate 25 has at its upper end a slot 30 or holes through the leak, this air from the air duct 28 can. The insulating material 27 does not extend all the way to the upper edge of the outer panel arrangement, so that a rearwardly directed gap which forms a continuation of the air duct 28 to the slot 30 remains.

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on the oven door, a hollow body 31 is provided, which is a part of the outer casing of the electric furnace and a locking device 32 for the oven door carries _a The locking device for the oven door has a knob 33 which is slidably disposed and et "Did plate 34 with a ochlitz 35 the upper edge of the outer panel assembly 16 can engage to lock the oven door, as shown, in its closed position can then be initiated when the oven door is closed and locked or locked.

The air emerging from the ochlitz 30 is warmed by flowing through the air duct 28 and is conducted through a channel 37 to the underside of the furnace plate 36. This channel will from an end plate 38 extending over the back side of the hollow body 31, a part of the outer housing of the furnace forming rear plate 39 and the front edge portion of a lower

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the furnace plate 36 arranged injection plate 40 limited The furnace plate has a downwardly directed peripheral flange 42 o The air coming from the channel 57 escapes through an opening 43, in which heating plate assemblies 44 having electrical heating elements are provided.

In this way, the cooling air warmed as it flows through the oven door is conducted away from the front of the oven. This ensures that both the door and the immediately overlying the oven door portion of the outer casing during a cleaning operation of the oven at a sufficiently low temperature (temperature rise is less than about 7O ⁰ C) are held. "

In another embodiment, the air exiting the W air duct 28 may be directed rearward under the splash plate 40 to exit at the rear through the oven plate 36 or behind an upwardly facing cover plate at the rear of the oven plate.

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Claims (1)

S. 1516 Expectations »Cers as ess tsetse as sr ssxsi Io Electrically heated cooking oven or stove with a Roasting tube, which has an oven chamber, an outer housing provided with an opening for the chamber and has an oven door closing this opening, characterized in that the oven door (14) has one between its outer and inner parts provided, for cooling serving air duct (28), to which the air from the end face of the outer housing to the rear conducts Channel (37) connects * 2 ο oven according to claim 1 with an oven plate and one or more heating plate arrangements provided thereon, characterized in that the Channel (37) with the one provided under the oven plate (36) Hardly communicated. 510/03 909828/1137 3 ° furnace according to claim 1 or 2, characterized in that that the channel (37) immediately above the oven door (14) starts at least partially from one a plate (31) arranged on the front side of the outer housing (13) (38) is limited in connection with a front edge of a spray plate (40) provided under the furnace plate (36). 4 ·. Oven according to one of the preceding claims, characterized in that the channel (37) extends extends across the top of the furnace chamber and allows the air to escape in the rear portion of the electric furnace. 5. Oven according to one of the preceding claims, characterized in that the oven door (14-) at least a panel assembly (16) having spaced inner and outer Plates (25 »26), in the upper and lower sections of which openings (29, 30) are provided, through which air can flow into or out of the panel arrangement » 909828/1137 6 «Furnace according to claim 5», characterized in that that the panel arrangement (16) is at least partially filled with a heat insulating material (27) is. 7o furnace according to claim 5 or 6, characterized in that that the oven door (14) has an outer panel assembly (16) and at a distance from it a means Having spring members (23) supported on the outer panel assembly inner panel assembly (15). 8ο Oven according to claim 7 *, characterized in that the inner panel arrangement (15) has a pair of spaced-apart plates (17 ₉ 18) between which there is heat-insulating material (19)., 9 ° furnace according to claim 6, characterized in that a plate (17 »18) of the inner panel arrangement (15) a resilient seal (20) carries the on a peripheral flange surrounding the opening of the plug chamber (10) (21) is applied. 90 98 28/1137 10. Oven according to one of claims 7 to 9 * thereby characterized in that the tree between the panel assemblies (15, 16) of the oven door (14) with communicates with the channel (37) carrying the air away from the end face of the outer housing. Ho furnace "according to claim 10, characterized in that that a sealing component (24) is provided in the tree between the panel assemblies (15, 16) that limits the movement of air through this space. 9 0 9828/1137 -42- Blank page