FR2681127A1 - DEVICE FOR COOLING THE DOOR OF A COOKING APPARATUS. - Google Patents

Abstract

The present invention relates to a device for cooling the door of a cooking appliance, more particularly of a household appliance of the oven, built-in oven, stove or similar type. This device for cooling the door (5) of a cooking appliance comprises a cooling system consisting of at least one centrifugal unit (9) and an extraction channel (2) of the air opening substantially at the level of the door (5), and consists of a deflector (11) shaped so as to fold the air expelled onto the external face of the door. This device adapts to any heating chamber fitted with a door used in all kinds of industries.

Description

DOOR COOLING DEVICE

A COOKING APPLIANCE

  The present invention relates to a device for cooling the door of a cooking appliance, more particularly to a type of electric cooking appliance.

  oven, built-in oven, stove or similar.

  A domestic cooking oven generally comprises a cooking chamber or muffle, intended to receive the food to be cooked, this cooking chamber being closed by a door allowing access to the interior of said enclosure. This door must be constructed so as to to avoid the loss of calories during cooking and as a result, too high temperature increases by conduction in the immediate environment of this door during cooking, they can cause burns In fact, cooking temperatures vary from 30 'C to 3000 C and the temperature inside the chamber can rise to about 5000 C during the cleaning phase of the oven in the case by

example of a pyrolysis furnace.

  To overcome these risks of burns, the oven doors are provided with insulation or ventilation systems which,

  to be effective, are bulky and expensive.

  On the other hand, some cooking ovens have a cooling system of the frame which avoids heating the immediate environment of the oven, that is to say the cabinet of installation This system consists of a centrifugal group that expels the chassis air through linear openings between the lower part of the control panel and the

upper part of the door.

  The present invention aims to cool the outer face of the door by using the air of the chassis expelled

by the centrifugal group.

  Accordingly, the present invention relates to a device for cooling the door of a cooking appliance comprising a cooling system constituted by at least one centrifugal group and an air extraction channel opening substantially at the level of the door, characterized in that it consists of a deflector shaped so as to fold the air expelled on the outer face of the door, said

  deflector being positioned at the outlet of the extraction channel.

  The use of a deflector flipping the expelled air on the door of the cooking appliance has many advantages over the state of the prior art Thus, for example, the extracted air is folded on the outer face of the door, this prevents the oven user from receiving this air at

level of the face.

  On the other hand, the shape of the deflector hides the user inside the extraction channel, this to the benefit of the aesthetics of the assembly Moreover, when the oven lighting is achieved at the ceiling of the cavity, it is not uncommon to see rays of light in the extraction channel The shape of the deflector according to the invention

avoid this inconvenience.

  Other features and benefits of this

  invention will appear on reading the description of

  Several embodiments, given below with reference to the accompanying drawings in which: Figure 1 is a schematic sectional view of a door and a control panel for baking oven provided with a centrifugal group according to the prior art; Figure 2 is a schematic diagrammatic view according to a first embodiment of the invention; FIG. 3 is a diagrammatic sectional view according to a second embodiment of the invention, and FIG. 4 is a diagrammatic sectional view according to a

  third embodiment of the invention.

  To simplify the description in the figures, the

  same elements bear the same references.

  FIG. 1 diagrammatically shows a cooking apparatus equipped with a cooling system of

chassis of known type.

  In this case, a spacing 2 called extraction channel is formed between the ceiling of the cooking chamber or muffle 3 and the control panel 4 of said oven as shown in Figure 1 This extraction channel 2 opens above of the door 5 of the enclosure 3 provided with a handle 6 In this opening 7 is mounted a baffle 8 which removes the air flow represented by the arrows F of the control panel 4 A centrifugal group 9 located at the bottom in the extraction channel 2 relative to the opening 7 flush heated air by conduction through the ceiling 10 of the chamber 3, the extraction channel 2 This air opens into the opening 7 and is expelled out of the cooking appliance horizontally according to the arrows F of

  Figure 1 along the path given by the deflector 8.

  FIG. 2 shows a cooking appliance provided with a cooling device for the door according to the invention. In the same manner as in the prior art, described above, the air heated by condiction through one of the walls of the enclosure 3 (here the ceiling 10) is driven through the extraction channel 2 by a centrifugal group 9 The extraction channel 2 opens between the top of the door 5 of the enclosure 3 equipped with a handle 6 and the bottom of the control panel 4 In this opening 7, is disposed a deflector 11 constituted by a bent plate of length at least equal to the width of said opening 7 and fixed under the control panel 4 This plate can be made of metal or a plastic material withstanding high temperatures The extraction channel 2 is of a shape such that it directs the flow of air so that it arrives under the deflector. the total flow of air expelled from the extraction channel 2 is directed, following the arrows F 'of Figure 2 on the outer face of the door 5, which allows to lower the temperature of its outer face. FIG. 3 shows an embodiment variant of the invention previously described. The deflector 12 is fixed on the upper edge of the door 5 by a device allowing the flow of air to pass along the arrows F "of FIG. extraction 2 has a shape such that it directs the flow of air expelled by the centrifugal group 9 under the deflector 12. In Figure 4, there is shown a third embodiment of the invention The deflector 13 orients the flow of air air extracted from the extraction channel 2 by the centrifugal group 9 according to the invention and on the other hand constitutes the opening handle of the door 5 This deflector 13 is flat, of bent shape and of width at least equal to the width of the opening 7 through which the air is expelled from the extraction channel 2 This latter has a shape such that the total air flow is oriented according to the arrows F "of FIG. 4 on the external face of the door The deflector 13 is secured to the upper edge of the port e so that the user of the oven can pass his fingers in the spacing between the lower part of the

  deflector 13 and the outer face of the door 5.

  The baffles according to the invention in these different embodiments are made of any material used in the field of cooking appliances as per

  example of plastic or painted metal.

  In the embodiments of the invention described above, the air used is that expelled by an extraction channel located on the ceiling of the enclosure, but this extraction channel can be located on one or more of the outer walls of the enclosure while remaining within the scope of the invention. This device adapts to all heating speakers

  equipped with a door used in all kinds of industries.

Claims (4)

  A device for cooling the door of a cooking appliance comprising a cooling system consisting of at least one centrifugal group and an air extraction channel opening substantially at the level of the door, characterized in that it is constituted by a deflector (11, 12, 13) shaped so as to fold the air expelled on the outer face of the door (15), said deflector being positioned   at the outlet of the extraction channel (2).   2 Device for cooling the door of a cooking appliance according to claim 1, characterized in that the baffle is constituted by a bent plate, of length at least equal to the width of the door of the cooking appliance. 3 Cooling device for the door of a   cooking appliance according to claims 1 and 2, characterized   in that the deflector (11) is fixed on the lower edge of the   control panel (4) of the cooking chamber (3).   4 Cooling device for the door of a   cooking appliance according to claims 1 and 2, characterized   in that the deflector (12) is fixed on the upper edge of   the door (5) of the cooking chamber (3).   Device for cooling the door of a cooking appliance according to claim 1 or 2, characterized in that the baffle (13) constitutes the handle of the door of the cooking chamber.