EP1909035B1 - Oven door assembly with locking element - Google Patents

Abstract

The door (4) has an internal panel (25) and an external panel mounted on a door frame (23). The external panel is assembled with a cross piece (46), and the internal panel is fixed to the frame by an elastic detent fixation unit. The cross piece is positioned in support with a lateral wall (38) of the frame and fixed with the frame by a locking pin (45) of a door locking unit. The locking pin detects contact of the door with a frontal face of the kiln to turn on/off a lamp placed inside the door. The locking pin fixes the frame and the cross piece and blocks the door in a close position.

Description

The present invention relates to the assembly of a baking oven door.

It also relates to a cooking oven equipped with means for assembling the door also for locking said door during a cooking operation or during a cleaning operation.

In general, the present invention relates to domestic cooking ovens in which a locking device of a door must be implemented to ensure the safety of the oven door and the user during a cooking operation or cleaning while simplifying the construction of said door.

The present invention relates to an element of at least one means for locking a door intended to equip a cooking oven. This oven can be pyrolyzed, in which the temperature inside the cooking chamber can reach 500 ° C during pyrolysis cycles.

The present invention relates to baking ovens comprising a muffle surrounded by a housing comprising an upper wall, side walls and a bottom wall, and the front face of the muffle is closed by a door.

It is known to use cooking chamber doors comprising several panels, generally glazed, mounted parallel to each other on a door frame. In particular, a cooking door generally comprises an inner ice intended to close the cooking chamber, an outer ice-cream, visible on the facade of the cooking appliance and one or more intermediate ice-creams arranged in a door frame between the ice-cream outside and the inner ice.

The intermediate windows allow, by creating insulating air slats, and through ventilation creating cooling air flows circulating between the different windows of the door, to limit the temperature rise of the door, especially at the level of the outer ice.

Cooking ovens are known comprising a door provided with a door frame, an inner window, an outer window, one or more intermediate windows, and means for fixing and assembling said windows. The outer glass is assembled on the door frame by means of a cross member and fixing screws. Said crossbar also allows to fix by screwing a handle for opening and closing door. The inner ice is generally assembled in the door frame by fastening means by screwing or by gluing. The intermediate ice is mounted between the inner ice and the outer ice by means of spacers.

However, these baking ovens have the disadvantage of using additional means to allow the locking of the door with the structure of the oven. These additional means of locking the door do not participate in the assembly of the door. Therefore, the door is made up of a larger number of pieces and the number of operations to be performed during the assembly of the door is increased. These door constructions increase the cost of obtaining a baking oven door.

Moreover, said additional means of locking the door are not part of the functional chain of the assembly of the door. These constructions lead to inaccuracies in the positioning of the door locking means and may cause malfunctions during the locking of said oven door.

The document is also known EP-A2-0 953 807 which describes a cooking oven door.

The document EP-A2-0 953 807 describes a door with a frame and a domed front window. The front window is mounted on the frame with one or more adapters. The adapter or adapters closing the space between the frame and the front window.

The present invention aims to solve the aforementioned drawbacks and to provide a baking oven door provided with at least one element of at least one door locking means for assembling the door simply and at the lowest cost guaranteeing the safety lock of the oven door. Said at least one element of at least one locking means of the door also ensures the safety of the user when using the oven.

For this purpose, the present invention is directed to a baking oven door comprising at least one inner and one outer glass mounted on a door frame, the outer glass being assembled with a cross member, said cross member being positioned in abutment with a side wall of the door frame.

According to the invention, said cross member is fixed with the door frame by at least one element of at least one locking means of the door.

Thus, the assembly of the door is fast and simple by minimizing the number of elements constituting said door. The locking of the door can be achieved by said at least one element of at least one locking means for all the oven models. Said at least one element of at least one locking means of the door constitutes a means for assembling the door and also a means for locking the door. In this way, the fastening means required for the assembly of the door are simplified and minimized, hence the cost of obtaining the optimized door.

Said at least one element of at least one locking means of the door can also be used to detect the contact of the door with the front face of the oven to turn on or off a lamp placed inside the door or in a wall of the cooking chamber.

The use of said at least one element of at least one locking means of the door for the assembly of the door ensures a precise positioning with respect to the various elements constituting said at least one locking means. In this way, the door lock is guaranteed for every use of the oven safely for the user. Said at least one element of at least one locking means of the door is part of the functional chain of the door assembly and thus reduces the functional clearance tolerances between the elements constituting the door.

Said at least one element of at least one locking means of the door makes it possible to fix the door frame and the transom and to block the door of the cooking oven in the closed position.

Thus, the cost of obtaining the baking oven is minimized and the oven door can be locked for each use where the temperature detected by a temperature measuring means exceeds a predetermined threshold.

Preferably, said at least one element of at least one locking means comprises resilient snap-fastening means.

Thus, the assembly of the at least one element of at least one locking means of the cross member on the door frame can allow easy and quick assembly and disassembly of the door to allow the change of a component constituting the door. during an intervention of the after-sales service.

Furthermore, the assembly time of the door is reduced by using resilient snap fastening means. The cost of obtaining the door is also minimized by such fastening means.

In addition, the aesthetics of the door of the baking oven is improved by not revealing means of attachment visible to the user.

According to a preferred feature of the invention, said at least one element of at least one locking of the door is a lock strike of the door.

Thus, the locking of the door can be easily implemented with at least one conventional locking means. The use of at least one conventional locking means makes it possible to minimize the cost of obtaining the oven.

In practice, said at least one element of at least one locking means comprises at least one housing cooperating with a finger of a lock assembled on the oven.

Thus, said at least one locking means comprises a bolt fitting into at least one housing of said at least one locking striker.

Other features and advantages of the invention will become apparent in the description below.

• la figure 1 illustre une vue en coupe d'un four de cuisson conforme à l'invention ;
• la figure 1 Bis est une vue du détail A de la figure 1;
• la figure 2 illustre une vue éclatée d'une porte pour enceinte de cuisson d'un four de cuisson conforme à l'invention ;
• la figure 3 illustre une vue en perspective d'une porte assemblée pour enceinte de cuisson d'un four de cuisson conforme à l'invention ;
• la figure 4 illustre une vue en coupe d'au moins un élément d'au moins un moyen de verrouillage de la porte assemblé avec le cadre de porte et une traverse selon un mode de réalisation de l'invention ;
• la figure 5 illustre les sous-ensembles constituant une porte pour enceinte de cuisson d'un four de cuisson conforme à l'invention ;
• la figure 6 illustre une vue en coupe d'une porte d'un four de cuisson conforme à l'invention ;
• la figure 7 illustre une vue en perspective d'un dispositif de déflexion d'air d'une porte d'un four de cuisson conforme à l'invention ;
• la figure 8 illustre une vue en coupe d'une partie supérieure d'une porte d'un four de cuisson conforme à l'invention ; et
• la figure 9 illustre une vue de face d'un four de cuisson conforme à l'invention.

In the accompanying drawings, given as non-limiting examples:

• the figure 1 illustrates a sectional view of a cooking oven according to the invention;
• the figure 1 Bis is a detail view A of the figure 1 ;
• the figure 2 illustrates an exploded view of a door for a cooking chamber of a cooking oven according to the invention;
• the figure 3 illustrates a perspective view of an assembled door for a cooking chamber of a cooking oven according to the invention;
• the figure 4 illustrates a sectional view of at least one element of at least one locking means of the door assembled with the door frame and a cross member according to one embodiment of the invention;
• the figure 5 illustrates the subsets constituting a door for a cooking chamber of a cooking oven according to the invention;
• the figure 6 illustrates a sectional view of a door of a cooking oven according to the invention;
• the figure 7 illustrates a perspective view of a device for deflecting air from a door of a cooking oven according to the invention;
• the figure 8 illustrates a sectional view of an upper portion of a door of a cooking oven according to the invention; and
• the figure 9 illustrates a front view of a cooking oven according to the invention.

We will describe first, with reference to the figure 1 , a cooking oven according to the invention.

A baking oven 1 comprises a muffle 2 whose front face 3 is closed by a door 4, and surrounded by a housing 5 comprising an upper wall 6, side walls 7 and a bottom wall 8.

Note the presence of a seal element 9 as illustrated on the figure 1 to guarantee the seal by a contact between the muffle 2 and the door 4.

The baking oven 1 may comprise a ventilation device 10 having a fan 11 connected to at least one ventilation duct 12 placed in a space 13 between the casing 5 and the muffle 2 and intended to create an air flow between openings input 15 and output 14.

Note also that the figures are schematic and that many organs necessary for the operation of the baking oven, for example the control means, the thermal insulation surrounding the muffle, ... have been omitted and do not need to to be described in detail here.

In the description of the invention carried out below, the assembly consisting of the muffle and the surrounding thermal insulation is considered as a single element. This set will be called cooking enclosure in the remainder of this document.

Here and in no way limiting, the ventilation device 10 comprises at least one suction channel 16, at least one discharge channel 12 and a fan 11. The suction channel 16 has at least one inlet opening 17 front face 3 of the baking oven 1 and at least one outlet opening 18 in a suction zone of the fan 11. Said at least one inlet opening 17 of the suction channel 16 on the front face 3 of the oven 1 is connected to at least one outlet opening 19 formed in the door 4. The discharge channel 12 comprises at least one inlet opening 20 in a blow zone of the fan 11 and at least one outlet opening 14 on the front face 3 of the cooking oven 1 to expel the air towards the outside of the oven 1.

We will first describe with reference to figures 1 and 2 a door for a cooking chamber according to an embodiment of the invention.

Typically, this door 4 for cooking chamber 2 can equip a domestic cooking oven 1, and for example an electric cooking oven adapted to implement a pyrolysis cycle for cleaning the cooking chamber 2. In this case , the temperature inside the cooking chamber 2 can reach 500 ° C.

An embodiment of a door 4 for a cooking chamber 2 is illustrated in FIG. figure 2 .

The door 4 includes an outer window 21 intended to come to the front of the device. This outer glaze 21 generally forms a decoration and consists of a transparent surface on its entire surface or at least a major part of its surface to allow viewing of the inside of the cooking chamber 2. The outer ice 21 may be ornamented with a decorative facade 22, for example stainless steel.

This outer window 21 is associated with a door frame 23. This door frame 23 is integrally mounted on the outer window 21 by means of a fastening element 24 and various fixing elements of the fixing screw type. which are not described here in detail.

In this embodiment of the invention, the door frame 23 is rectangular and is intended to house an inner window 25. This inner window 25 is removably mounted in the door frame 23 as will be described later. This inner ice 25 is intended to come opposite the cooking chamber 2 and to close an opening 26 thereof.

In this embodiment of the invention, between the outer window 21 and the inner window 25, two intermediate windows 27 and 28 are arranged in the door frame 23.

Of course, no intermediate ice or a single intermediate ice or a number greater than two could be provided in the door 4.

The windows 25, 27 and 28 comprise transparent surfaces allowing the user to observe through the door 4 the contents of the cooking chamber 2.

In this embodiment, the windows 25, 27 and 28 are made of transparent surfaces.

The intermediate windows 27 and 28 are mounted in the door frame 23 through to holding means 29.

The outer window 21 is arranged to receive a door handle 30 fixed by bearing on the outer surface 31 of said outer window 21 by known means, such as for example by screwing. Said handle 30 can be screwed into a fastener 24 of the handle 30 generally metal. Said handle 30 may comprise a bar 32 to allow the opening and closing of said door 30 and at least two bases 33 which are fixed on the fixing element 24 and resting on the outer window 21.

The inner window 25 facing the opening 26 of the cooking chamber 2 is fixed to the door frame 23 by resilient snap-fastening means 34 or else by means of assembly by gluing.

The inner lens 21 can be removably mounted and inserted into a groove 35 formed by the door frame 23.

As well illustrated at the figure 3 , the door frame 23 further comprises at least one recess 36 forming a gripping space at the edge of the intermediate windows 27 and 28.

This recess 36 allows the user to move the hand to lift the intermediate windows 27 and 28 during disassembly of these windows 27 and 28.

In order to limit the temperature rise of the door 4, it is generally associated with a ventilation device 10 adapted to suck and / or blow air through the door 4 by a direct suction or an effect Venturi, between the various mirrors 21, 25, 27 and 28.

To allow the circulation of the air flow, the door frame 23 comprises slots 37 at respectively the upper edge 38 and the lower edge 39 of the door 4.

The door 4 comprises at least three windows 21, 25 and 27 parallel to each other and spaced so as to form two air passages for the flow of an air flow.

In the case of a door 4 of baking oven 1 with a pyrolytic cleaning mode, the door 4 may comprise four windows 21, 25, 27 and 28, two intermediate windows 27 and 28 spaced so as to form three blades. 40, 41 and 42, the central air blade 41 allows the flow of an air flow represented by the arrows P, as illustrated in FIG. figure 1 .

In this embodiment of the invention, the two air knives 40 and 42 placed between the intermediate windows 27 and 28 and said inner 25 and outer 21 window can allow the flow or not of a flow of air.

The door 4 also includes two hinges 43 for connecting to the front 44 of the appliance 1. These hinges 43 consist of a metal body, a spring and an arm.

Said two hinges 43 allow the opening and closing of the door 4. These hinges 43 consist of a metal body, inside the body of the hinge 43 is placed a spring. These hinges 43 make it possible to keep the door 4 in the closed position and in the open position, in particular to introduce or remove a dish from the cooking chamber 2, and to hold the door 4 in an equilibrium position between the open position and the closed position. . The hinges 43 are connected on the one hand to the door 4 and on the other hand to the front face 3 of a furnace 1 by an arm.

We will now describe, with reference to Figures 1 to 5 , a door for a cooking chamber according to an embodiment of the invention.

A door 4 of a baking oven 1 comprises at least one inner ice 25 and one outer ice-cream 21 mounted on a door frame 23.

The outer window 21 is assembled with a crossmember 46, said crossmember 46 being positioned in abutment with a side wall 38 of the door frame 23, and said crossmember 46 being fixed with the door frame 23 by at least one element 45 of less a locking means (not shown) of the door 4.

Thus, the assembly of the door 4 is fast and simple by minimizing the number of elements constituting said door 4. The locking of the door 4 can be achieved by said at least one element 45 of at least one locking means for all of the cooking oven models 1. Said at least one element 45 of at least one locking means of the door 4 constitutes a means for assembling the door 4 and also a means of locking the door 4. In this way, the fastening means necessary for the assembly of the door 4 are simplified and minimized, hence the cost of obtaining the optimized door 4.

Said at least one element 45 of at least one locking means of the door 4 can also serve to detect the contact of the door 4 with the front face 3 of the oven 1 to turn on or off a lamp (not shown) placed at the door. inside the door 4 or in a wall of the cooking chamber 2.

The use of said at least one element 45 of at least one locking means of the door 4 for the assembly of the door 4 ensures a precise positioning with respect to the different elements constituting said at least one locking means. In this way, the locking of the door 4 is guaranteed for each use of the oven 1 safely for the user. Said at least one element 45 of at least one locking means of the door 4 is part of the functional chain of the assembly of the door 4 and thus reduces the functional clearance tolerances between the elements constituting the door 4.

Said at least one element 45 of at least one locking means of the door 4 allows to fix the door frame 23 and the crossmember 46 and to block in the closed position the door 4 of the cooking oven 1.

Thus, the cost of obtaining the baking oven 1 is minimized and the door 4 of the oven 1 can be blocked for each use where the temperature detected by a temperature measuring means (not shown) exceeds a predetermined threshold.

In practice, the door 4 is assembled by forming subassemblies in order to reduce the number of assembly operations and to reduce the assembly time as illustrated in FIG. figure 5 .

The door frame 23 is assembled with at least one hinge 43 and an inner window 25 to form a counter-door subassembly 49.

The outer window 21 is assembled with a fastening element 24 and a door handle 30 by screwing means 50, also with the crossmember 46 being fixed on the fastening element 24 to form a door decoration subassembly 51. .

The counter-door subassembly 49 and the door decoration subassembly 51 are assembled by said at least one element 45 of at least one locking means of the door 4.

In addition, the door decoration subassembly 51 can thus be personalized by maintaining a counter-door subassembly 49 identical to all the cooking oven models 1. The door decoration sub-assembly 51 can make it possible to mounting a handle 30, a cross member 46 and an outer mirror 21 customized to each model of the baking oven 1.

The method of assembling the counter-door subassembly 49 and the door decoration subassembly 51 is identical to each model by said at least one element 45 of at least one locking means of the door 4.

Moreover, the crossmember 46 can be adapted according to the ventilation device of the cooking oven 1. The crossmember 46 can make it possible to modify the outlet of an air flow F on the front face 3 of a cooking oven 1.

Preferably, said at least one element 45 of at least one locking means comprises fastening means 47 by elastic latching.

Thus, the assembly of the at least one element 45 of at least one locking means of the crossmember 46 on the door frame 23 can allow easy and fast assembly and disassembly of the door 4 to allow the change of a door. element constituting the door 4 during an intervention of the after-sales service.

Furthermore, the assembly time of the door 4 is reduced by using fastening means 47 by resilient latching. The cost of obtaining the door 4 is also minimized by such fastening means 47.

In addition, the aesthetics of the door 4 of the baking oven 1 is improved by not leaving no appearing means 47 visible to the user.

The door frame 23 comprises at least one opening 52 cooperating with at least one opening 53 in the crossmember 46 to allow their attachment by fastening means 47 by resilient snapping of said at least one element 45 of at least one locking means of the door 4.

Said at least one aperture 52 and 53 of the door frame 23 and the cross member 46 ensure a precise assembly. The functional chain of the assembly is mainly provided by said at least one aperture 52 and 53 for the positioning of said at least one element 45 of at least one locking means of the door 4. The assembly of the door 4 and particular of the crosspiece 46 and the door frame 23 by said at least one element 45 of at least one locking means is made with a minimum clearance and a low value.

In this way said at least one element 45 of at least one locking means of the door 4 is placed precisely to cooperate with said at least one locking means. The locking of the door 4 in the closed position is thus guaranteed by the positioning of said at least one element 45 of at least one locking means of the door 4.

According to a preferred feature of the invention, said at least one element 45 of at least one locking of the door 4 is a door lock striker 4.

Thus, the locking of the door 4 can be easily implemented with at least one conventional locking means. The use of at least one conventional locking means makes it possible to minimize the cost of obtaining the oven 1.

Preferably, the crosspiece 46 is fixed with the door frame 23 by two locking strikes 45 of the door 4.

Thus, the door frame 23 is fixed rigidly with the crossmember 26 by the two latching strikes 45 of the door 4.

In addition, said at least one locking means can be disposed on either side of the vertical median plane passing through the cooking oven 1, or two locking means can be used to lock the door 4 in the closed position.

The crossmember 46 is placed on an inner surface of a side wall 38 of the door frame 23.

Said at least one element 45 of at least one locking of the door 4 is a plastic part resistant to temperature during a cooking operation or during a pyrolysis cleaning operation.

In practice, said at least one element 45 of at least one locking means comprises at least one housing 48 cooperating with a finger of a lock assembled on the furnace 1.

Thus, said at least one locking means comprises a bolt fitting into at least one housing 48 of said at least one locking striker 45.

The door 4 of the baking oven 1 comprises at least one intermediate ice 27 or 28 placed between the inner ice 25 and the outer ice 21.

The door 4 of the baking oven 1 can be designed to withstand the temperature of 500 ° C inside the cooking chamber 2 during a pyrolysis cleaning mode.

Said at least one intermediate ice 27 or 28 can be assembled with holding elements 29. The holding elements 29 are mounted in the corners of said at least one intermediate ice 27 or 28. The holding elements 29 in this embodiment are four in number and intended to be housed at the four corners of the door frame 23. They are thus mounted at the four corners of said at least one intermediate ice 27 or 28.

The door frame 23 has four stamped shaped angles 54, as illustrated in FIG. figure 2 , adapted to respectively accommodate each retaining element 29 in the form of a wedge.

The inner window 25 comprises at least one resilient snap-fastening means 34 cooperating with the door frame 23.

Thus, the inner ice 25 is removable and can allow its removal to allow the cleaning of at least one intermediate ice 27 or 28 of the door 4. Said at least one intermediate ice 27 or 28 is also removable from the door 4 by removing the holding elements 29 of the door frame 23. In this way, each window 21, 25, 27 and 28 of the door 4 can be cleaned separately.

The assembly of the door 4 by said at least one element 45 of said at least one locking means by resilient snap-fastening means 47 and inner window 25 on the door frame 23 also by fixing means 34 by resilient latching makes it possible to completely disassemble said door 4 without risk of damaging the elements constituting the latter.

We will now describe, with reference to Figures 1 to 9 , a device for channeling an air flow with a constant section height at the outlet of at least one ventilation channel of a cooking oven according to the invention.

The device for channeling an air flow F of constant section at the outlet of at least one ventilation channel 12 makes it possible to improve the cooling of the door 4 and the structure of the cooking oven 1.

A height H of the passage section of an air flow F is constant over at least part of a blowing zone 73 of said at least one ventilation channel 12 and an air deflection zone 72.

Thus, the air flow F is channeled into a section of constant height H in at least a part of a blowing zone 73 of said at least one ventilation channel 12 and in an air deflection zone 72 to avoid the looping of the air in the ventilation device 10 and in the door 4 of the oven 1 .

The flow of air F passing through the air deflection zone 72 is directed towards the outside of the cooking oven 1 without the latter being able to return to the at least one ventilation channel 12 and consequently reducing the performance of the ventilation device. ventilation 10.

Similarly, the air flow F is remote from the door 4 of the oven 1 to avoid sucking air from the ventilation device 10 by said at least one opening 58 formed in the lower part of the door 4.

The flow of air F leaving the air deflection zone 72 is little or not turbulent and oriented in a determined direction does not cause a return of hot air in the fresh air inlet openings of the cooking oven 1.

In addition, the air flow F is channeled so as not to come into contact with the door handle 4 or any other decorative element of the oven 1 to avoid creating turbulence at the outlet of said air. at least one ventilation channel 12 opening on the front face 3 of the oven 1.

In this way, the efficiency of the ventilation device 10 is improved and the heating of the elements constituting the oven 1 and the oven door 4 are minimized.

The invention improves the reliability of the cooking oven 1 and ensure the safety of the user by avoiding overheating of a component constituting the baking oven 1.

It also limits the temperature of the outer window 21 and the door handle 30 to avoid any risk of burning for the user.

The constant height section H in at least a part of a blow zone 73 of said at least one ventilation channel 12 and in an air deflection zone 72 makes it possible to avoid creating turbulences for the air flow. F within said section.

The constant height section H in at least a portion of a blow zone 73 of said at least one ventilation channel 12 is preferably between one third and one fifth of the length of said at least one ventilation channel 12.

The air deflection zone 72 is constituted by a parallel upper wall 74 and a bottom wall 61 for determining the constant height H of the passage section of the air flow F above the door 4 of said furnace 1.

Practically, the air deflection zone 73 is constituted by at least one crossmember 46 positioned below said at least one ventilation channel 12 and by at least one air deflector 60.

Thus, the constant height H section is guaranteed in the deflection zone The flow of air F can be oriented in a desired direction depending on the position of the door handle 4 and said at least one ventilation channel 12 opening on the front face of the oven.

The air deflector 60 can be hidden to contribute to the aesthetics of the baking oven 1. Only the portion of the air deflector 60 serving to give a direction to the air flow F can be visible to the user. This part of the air deflector 60 can make it possible to prevent visualization of the inside of the at least one ventilation duct 12.

Said at least one air deflector 60 is positioned at least partly within said at least one ventilation channel 12.

Thus, the air deflector 60 may also make it possible to maintain the spacing between the upper and lower walls 78 of said at least one ventilation channel 12 of said at least part of a blowing zone 73 where the height H is constant.

The flow of air F is directed below a door handle 4 by the air deflection zone 72 formed at one end of a blowing zone 73 of the at least one ventilation channel 12.

In this way, the air deflection zone 72, consisting of the crossmember 46 and the air deflector 60, makes it possible to prevent the user from seeing the at least one ventilation channel 12 opening on the end face 3 of the oven 1. The aesthetics of the baking oven 1 is improved by positioning the door handle 30 opposite at least one opening 14 formed on the front face 3 of the oven 1 for the discharge of air by said at least one ventilation channel 12.

The rear wall 62 of the handle 30 is cooled by the air flow F and allows the user not to burn by manipulating the handle 30 to open or close the door 4 of the cooking chamber 2.

At least a portion of the rear wall 62 of the handle 30 may constitute an extension of the air deflection zone 72.

In practice, the height H of the passage section of the air flow F extends in a range between 10mm and 25mm, and preferably of the order of 20mm.

Thus, the flow rate of the air flow F of the ventilation device 10 through said at least one ventilation channel 12 makes it possible to ensure the cooling of the elements constituting the cooking oven 1. The speed of the air flow F can thus be adapted so as not to cause discomfort to the user and to limit the level of noise produced by the baking oven 1. The fan 11 for cooling the oven 1 is sized according to the constant height H of the passage section an air flow F in at least a part of a blow zone 73 of said at least one ventilation channel 12 and in an air deflection zone 72.

Said at least one air deflector 60 comprises an inclined wall 74 and parallel to an inclined wall 61 of the crossmember 46 for directing the flow of air F towards the outside of the furnace 1 and away from the outer glazing 21.

Thus, the air deflection zone 72 constituted by the air deflector 60 and the crossmember 46 makes it possible to prevent the flow of air F from being closed by at least one opening 15 formed in the lower part of the furnace 1 or in at least one opening 58 formed in the lower part of the door 4.

The air discharged to the outside of the furnace 1 by the ventilation device 10 through said at least one ventilation channel 12 makes it possible to orient the air flow F in an inclined direction preventing the user from being inconvenienced. receiving a flow of hot air.

The cross member 46 of the air deflection zone 72 may have the characteristics similar to the air deflector 55 which will be described later.

In practice, the inclination β of the inclined wall of said at least one air deflector 60 is in a range extending between 20 ° and 50 °, and preferably of the order of 40 °.

Thus, the flow of air F opening on the front face 3 of the oven 1 by said at least one ventilation channel 12 does not cause any inconvenience to the user receiving a hot air flow in the face or on the upper part of the body.

In addition, the air flow F is directed towards the outside of the oven 1 without being sucked by at least one opening 15 or 58 formed in the lower part of the furnace 1. Said at least one opening 15 formed in the front face 3 of the oven 1 to cool the structure by leaving an air passage 64 below the furnace 1 and said at least one opening 58 in the lower part of the door 4 are remote from the air flow F to avoid a loop of air and cause too much heating of the elements constituting the oven 1.

The air flow F is oriented so as to be remote from the outer window 21 of the door 4.

The width D of the inclined wall 74 of said at least one air deflector 60, illustrated in FIG. figure 9 , is substantially equal to the width L of the inclined wall 61 of the crosspiece 46.

Thus, the air deflection zone 72 is of constant section and keeps the speed of the air flow F. The air flow F does not undergo a divergence or convergence that could increase the noise level during the delivery of air to the outside of the oven 1. The air flow F can not create turbulence which has the effect of reducing the efficiency of the ventilation device 10 of the oven 1 and to create disturbances at the level of said at least one an air outlet opening 14 formed in the front face 3 of the oven 1.

The width N of the passage section of the air flow F of said at least part of a blowing zone 73 of said at least one ventilation channel 12, illustrated in FIG. figure 9 , is less than or equal to the width D of the passage section of the air flow F of the air deflection zone 72.

The width N of the passage section of the air flow F of said at least part of a blow zone 73 of said at least one ventilation channel 12 is dimensioned so as to take account of the pressure losses of said at least a ventilation channel 12. With a width N of said at least a portion of a blow zone 73 of said at least one ventilation channel 12 smaller than the width of the passage section of the air flow F of the zone of air deflection 72 allows, during the flow of air in this zone, to maintain an air flow rate F constant or at least sufficient to cool the elements constituting the oven 1.

Said at least a portion of a blow zone 73 of said at least one ventilation channel 12 and the air deflection zone 72 are contiguous.

Thus, the air flow F is not disturbed by at least one opening creating a turbulence and changing the orientation of said air flow F. The air flow F flows along a smooth wall and homogeneous so as to avoid disturbances and causing a decrease in the efficiency of the ventilation device 10 of the cooking oven 1.

In one embodiment of the invention, the passage section of an air flow F is constant over at least part of a blowing zone 73 of said at least one ventilation channel 12 and over a deflection zone 72.

Thus, the air flow F circulates in a space of constant section to avoid airflow disturbances. The speed of the air flow F is thus constant and makes it possible to optimize the cooling performance of the cooking oven 1.

We will now describe, with reference to Figures 1 to 9 , an air deflection device of a baking oven according to one embodiment of the invention.

The air deflection device 55 of the door 4 consists of at least one crossmember 46 comprising at least side walls 56 and at least one upper wall 57.

Said air deflection device 55 of the door 4 consists of at least one crosspiece 46 made of thermoplastic material situated in the upper part of the door 4 and extending over the entire width of the door frame 23.

This air deflection device 55 of the door 4 is assembled to react elastically against the door frame 23, to absorb the deformations experienced by the windows 21, 25, 27 and 28 constituting the door 4 during operation of the oven cooking 1.

The air deflection device 55 and the transom 46 described previously can to be a unique piece as represented on the Figures 1 to 8 .

In the non-limiting example shown in figure 6 the first air flow P enters at least one lower air intake passage 58 at the bottom of the door 4 of the cooking oven 1 and exits through at least one upper air outlet passage located in the top of the door 4 and is directed through at least one air inlet opening located at the rear of the air deflector 55, the air outlet area of the air flow F in the upper part of the door 4 is represented by the reference 59.

Then, the air flow P is sucked into a suction ventilation channel 16 of the ventilation device 10.

The air deflection device 55 makes it possible to create a door 4 ventilated by the passage of a flow of air P between the inner ice 25 and the outer ice 21.

The air sucked into the suction ventilation channel 16 is mixed in the fan 11 with air coming from the outside through at least one opening 15 formed in the upper or lower part of the cooking oven 1 and said outside air having circulated between the housing 5 and the cooking chamber 2. The air mixture is rejected in a discharge ventilation duct 12 towards the front face 3 of the cooking oven 1 to exit through at least one opening 14.

The cooking oven 1 comprises a cooking chamber 2 having an opening 26 on the front face 3 closed by a door 4. Said cooking chamber 2 is surrounded by a housing 5 and said cooking oven 1 also comprises a ventilation device 10 provided at least one ventilation channel 12 placed between the cooking chamber 2 and the housing 5.

Said at least one ventilation channel 12 opens at least on the front face 3 of said furnace 1.

The door 4 is provided with at least one inner window 25 vis-à-vis the opening 26 of the cooking chamber 2 and an outer window 21 positioned towards the outside of said oven 1.

The air deflection device 55, illustrated in FIGS. figures 7 and 8 , comprises at least one inclined wall 61 for directing an air flow F exiting from said at least one ventilation channel 12 on the front face 3 of the oven 1 towards the outside of said oven 1, and said at least one inclined wall 61 of said device air deflection 55 extends beyond the outer ice 21 of the door 4 to maintain the orientation of the air flow F.

Thus, the air deflection device 55 makes it possible to improve the cooling of the upper part of the door 4 and in particular of the surface of the outer window 21 situated opposite the door handle 30.

The air deflection device 55 also allows the rear of the door handle 4 to be cooled to prevent the user from being burned during the manipulation of the door. door 4 of oven 1.

In addition, the air deflection device 55 of the door 4 makes it possible to avoid the looping inside the door 4 of the air expelled on the front face 3 towards the outside of the oven 1. In this way, the air sucked into the lower part of the door 4 is fresh and unheated by the operation of the baking oven 1. Therefore, the cooling of the baking oven 1 and in particular of the structure, the components and the door 4 is improved.

The air deflection device 55 directs the air flow F in an inclined direction and away from the outer window 21 of the door 4.

Furthermore, the air discharged to the outside of the furnace 1 by the ventilation device 10 is oriented in an inclined direction preventing annoyance to the user receiving a flow of hot air.

The air deflection device 55 also makes it possible to prevent the user from seeing the at least one ventilation channel 12 opening on the front face 3 of the oven 1 so as to improve the appearance of the cooking oven 1 by positioning the oven. door handle 30 or any other element vis-à-vis at least one opening 14 formed on the front face 3 of the oven 1 for the discharge of air by said at least one ventilation channel 12.

The door 4 of the baking oven 1 comprises a handle 30, said handle 30 comprising at least a portion of a rear wall 62 adapted to cooperate with the air deflection device 55 to guide the flow of air F.

Thus, the flow of air F leaving the at least one ventilation channel 12 on the front face 3 of the oven 1 is not disturbed by the door handle 30. The air flow F is oriented in an inclined direction of so as to avoid the door handle 30 and without creating turbulence having an air-pushing effect inside said at least one ventilation channel 12.

The shape of said at least one rear wall 62 of the handle 30 is adapted so that the flow of air F from said at least one ventilation channel 12 does not encounter obstacles causing disturbances.

In one embodiment of the invention, the shape of said at least one rear wall 62 of the handle 30 comprises a radius R to allow a flow of the air flow F without disturbances. Said radius R of said at least one rear wall 62 of the handle 30 may extend in a range between 5mm and 20mm, and preferably of the order of 10mm.

In practice, the inclination α of the inclined wall 61 of the air deflection device 55 is in a range extending between 20 ° and 50 °, and preferably of the order of 40 °.

Thus, the flow of air F opening on the front face 3 of the furnace 1 by said at least one Ventilation channel 12 does not cause any inconvenience to the user. In this way, the user does not receive a hot air flow in the face or on the upper part of the body.

In addition, the air flow F is directed towards the outside of the oven 1 without being sucked by at least one opening 15 formed in the lower part of the oven 1. Said at least one opening 15 formed in the front face 3 of the oven 1 to cool the structure by leaving an air passage 64 below the furnace 1 and said at least one opening 58 in the lower part of the door 4 are remote from the air flow F to avoid a loop of air and cause a excessive heating of the elements constituting the oven 1.

The air flow F is oriented so as to be remote from the outer window 21 of the door 4.

In practice, the inclined wall 61 of the air deflection device 55 protrudes from the outer window 21 of the door 4 in a range extending between 2 mm and 8 mm, and preferably of the order of 4.5 mm.

Thus, the air flow F is remote from the outer glass 21 of the door 4 to prevent the air from circulating inside the door 4 of the oven 1. The air flow F is directed towards the outside the oven 1 without being sucked by at least one opening 15 or 58 formed in the lower part of the oven 1.

The air flow F is detached from the outer surface 31 of the outer glass 21 by a bill-shaped element 63 and of width D so as to prevent any aspiration of the air through the openings 15 or 58 formed in the lower part. oven 1 for cooling the door 4 and the structure of the furnace 1 leaving a passage 64 of air under the cooking chamber 2.

The cooling of the door 4 is improved by moving the air flow F away from the door 4 and promoting a fresh air inlet through said at least one opening 58 formed in the lower part of said door 4.

In a preferred embodiment of the invention illustrated in FIG. figure 6 , an axis B of said at least a portion of a rear wall 62 of the handle 30 of the door 4 is substantially parallel to said at least one inclined wall 61 of the air deflector 55.

Thus, the air flow F is channeled between the inclined wall 61 of the air deflection device 55 and the at least part of a rear wall 62 of the door handle 30.

The air channel formed by the inclined wall 62 of the air deflection device 55 and said at least a portion of a rear wall 62 of the door handle 30 makes it possible to obtain an air outlet towards the air outside the furnace 1 from said at least one ventilation channel 12 without aeraulic disturbances and without obstacles in the zone of said channel air.

Preferably, the inclined wall 61 of the air deflection device 55 extends from the front face 3 of the furnace 1 to beyond the outer window 21 of the door 4 to direct the flow of air F below. the handle 30 of said door 4.

Thus, the rear wall 62 of the handle 30 is cooled by the flow of air F from said at least one ventilation channel 12 opening on the front face 3 of the oven 1 to prevent the user from burning by manipulating said handle 30 door 4.

The inclined wall 61 of the air deflection device 55 extending from the front face 3 of the furnace 1 to beyond the outer window 21 of the door 4 makes it possible to guide the flow of air F while avoiding disturbances. Aerodynamic. The air flow F is guided along the inclined wall 61 without obstacles that may be caused by openings or connection planes of elements constituting the door 4 can not disturb it.

Preferably, the width L of the air deflection device 55 is substantially equal to the width of said at least one ventilation channel 12 opening at least on the front face 3 of the furnace 1.

Thus, the air flow F opening from the front face 3 of the furnace 1 from said at least one ventilation channel 12 moves without disturbances that can be linked to an element constituting the door 4 such as the handle 30 and more particularly the bases 33 of the handle 30 bearing on the outer surface 31 of the outer door 21 of door 4.

Preferably, the lower part of the air deflection device 55 is substantially at a height E identical to the height of the lower part of the door handle 30.

Thus, the flow of air F from said at least one ventilation channel 12 having at least one opening 14 formed on the front face 3 of the oven 1 is oriented in a predetermined direction to the lower part of the handle 30 so as to avoid air looping around the handle 30. The air flow F can not move circularly around the handle 30 and cause disturbances at the at least one opening 14 on the front face 3 of the oven 1 of said at least one ventilation channel 12.

In addition, the positioning of the lower part of the air deflector 55 substantially at an identical height of the lower part of the door handle 4 improves the appearance of the cooking oven 1. The lower part of the air deflection device 55 is not visible to the user.

In another embodiment of the invention, the lower part of the handle 30 is lower than the lower part of the air deflection device 55 to allow to guide the flow of air F over a greater distance and avoid that the airflow F has a tend to rise upwards. In this way, maintaining the inclination α of the air flow F is guaranteed.

Preferably, the spacing between the inclined wall 61 of the air deflection device 55 and a plane A tangential to a rear wall 62 of a door handle 30 and parallel to said inclined wall is greater than or equal to the height H. at least one outlet opening 14 of said at least one ventilation channel 12 opening at least on the front face 3 of said oven 1.

Thus, the door handle 30 can not create any disturbances on the flow of the air flow F after the said at least one outlet opening 14 of the at least one ventilation channel 12 opening at least on the front face 3 of the oven 1 .

The handle 30 is positioned so as not to create a necking of the section having the effect of creating turbulence or to accelerate the flow of air F.

The air outlet via said at least one outlet opening 14 of said at least one ventilation channel 12 opening at least on the front face 3 of the oven 1 avoids any disturbance having the effect of reducing the amount of air discharged by said at least a ventilation channel 12.

In this way, the fan 11 of the ventilation device 10 does not undergo any pressure drop having the effect of reducing its air flow.

The air flow F is completely discharged to the outside of the oven 1 without creating an inward loop of the at least one ventilation channel 12.

Practically, the air deflection device 55 is placed below said at least one ventilation channel 12 opening at least on the front face 3 of said furnace 1.

In this way, the air flow F is channeled between the door handle 4 and the air deflector 55.

The air deflection device 55 makes it possible to cool the rear wall 62 of the door handle 30 to prevent the user from getting burned during the handling of the oven door 4.

In addition, the air deflection device 55 of the door 4 makes it possible to avoid the looping inside the door 4 of the air expelled on the front face 3 towards the outside of the oven 1. In this way, the air sucked into the lower part of the door 4 is fresh and unheated by the operation of the baking oven 1. Therefore, the cooling of the baking oven 1 and in particular of the structure, the components and the door 4 is improved.

The air deflection device 55 directs the air flow F in an inclined direction and away from the outer window 21 of the door 4.

The positioning of the handle 30 relative to the air deflection device 55 is a parameter to be taken into account in order to avoid airflow disturbances at the outlet of said at least one ventilation channel 12 opening on the front face 3 of the furnace. cooking 1.

The positioning of the handle 30 is effected according to the shape of the rear wall 62 thereof and the inclination α of the inclined wall 61 of the air deflector 55.

The handle 30 is positioned in two values, a first height and a second spacing between said handle 30 and the bill-shaped element 63 of the air deflector 55.

The height positioning of the handle 30 can be achieved by the distance T between the high point of the inclined wall 61 of the air deflector 55 and the low point of the lower part of the rear wall 62 of the handle 30, as shown in the figure 8 .

The handle 30 is illustrated on the Figures 1 to 8 with different shapes to show the implications of the rear wall 62 of said handle 30 depending on the inclination α of the inclined wall 61 of the air deflector 55.

In one embodiment of the invention, the air deflection device 55 may consist of the crossmember 46 and an air deflector 60.

The crosspiece 46 is placed in the upper part of the door 4 and the air deflector is positioned at the outlet of said at least one ventilation channel 12, and partially placed inside the latter.

The air deflector 60 determines an orientation of the air flow F at the outlet of the at least one ventilation channel 12 to prevent the circulation of air passing through the ventilation device 10 from entering the lower part of the door 4 by at least one inlet opening 58.

The inclination of the air flow F is guaranteed by the crossmember 46 comprising an inclined wall 61.

The inclined wall 61 of the crossmember 46 and the inclined wall 74 of the air deflector 60 are substantially parallel to allow the flow of air F to be inclined in a direction determined by the manufacturer of cooking ovens 1.

The air flow F also enables the rear wall 62 of the door handle 30 to be cooled by passing between said rear wall 62 of the handle 30 and the upper part of said door 4.

The inclination of the air flow F is defined so as to avoid any airflow disturbances by encountering obstacles on the passage of said air flow F. The handle 30 is positioned and adapted so as to avoid any disturbance of the air flow. F leaving said at least one ventilation channel 12 opening on the front face of the baking oven 1.

The inclined walls 61 and 74 respectively of the crossmember 46 and the air deflector 60 form an air channel of constant height to avoid disturbances. aérauliques having the effect of reducing the cooling of the top of the door and reduce the efficiency of the ventilation device 10.

The inclination β of the inclined wall 74 of the air deflector 60 and the inclination α of the inclined wall 61 of the crossmember 46 are substantially identical to obtain an air flow passage F with a minimum of turbulence.

The air channel, also called air deflection zone 72, formed by the inclined wall 74 of the air deflector 60 and the inclined wall 61 of the crossmember 46 is at least constituted outside the baking oven 1 and from the front face 3 of said oven 1.

This air deflection zone 72 can start at least partly in a blow zone 73 of the at least one ventilation channel 12.

Said air deflection zone 72 may also continue beyond the outer surface 31 of the outer glass 21 of the door 4. The air deflection zone 72 may end with a beak-shaped member 63 in the continuity of the inclined wall 61 of the crosspiece 46.

This beak-shaped element 63 makes it possible to prevent the flow of air F from closing in the door 4 by detaching said air flow F from the outer surface 31 of the outer window 21. The air flow F is remote of the door 4 by means of the air deflection zone 72 formed by the crosspiece 46 and the air deflector 60.

The inclined wall 74 of the deflector 60 is a main element of the change of orientation of the air flow F at the outlet of the at least one ventilation channel 12. The shape of said air deflector 60 is particularly adapted to avoid airflow disturbances of the F. The inclined wall 74 of the deflector 60 allows the accompaniment of the change of direction of the air flow F. The shape of the air deflector 60 is adapted to avoid a sudden change of direction of the air flow F and limiting the pressure losses associated with the air deflection zone 72 forming a bent portion.

We will now describe, with reference to Figures 1 to 8 , a cooling device of a baking oven door, and in particular of a non ventilation area in a part of the door.

A baking oven door 4 comprises at least one inner window 25 and one outer window 21. The inner 25 and exterior window 21 are mounted on a support means, such as a door frame 23.

The door 4 comprises a crossmember 46 to form an air channel 65 between said outer window 21 and said crossmember 46. Said crossmember 46 is positioned in abutment with a wall 38 of the door frame 23.

At least one opening 68 is formed between at least one upper wall 66 of the outer window 21 and one wall of the crossmember 46 allowing the circulation of a stream G.

Said at least one opening 68 opens at least on the front face of said outer window 21 to allow fresh air to enter the interior of the door 4, said air flow G flows from the outside of said oven 1 to the outside. interior of said door 4.

Thus, a flow of fresh air G is directed to a vacuum zone 67 by suction to cool the door 4. The outer glass 21 of the door 4 is cooled by the passage of the fresh air flow G and in particular in the zone near the handle 30.

The cost of producing the cooling device of the door 4 is minimized by integrating it with a crossmember 46 allowing the assembly of the door 4.

An upper wall 66 of the outer window 21 of the door 4 forms a wall of the air channel 65 between said outer window 21 and the crosspiece 46.

Thus, the air channel 65 is formed in the upper part of the door 4 of the cooking oven 1 to allow efficient cooling of the entire door 4 and particularly the depression zone 67 located near the zone at least one ventilation channel 16. The air channel 65 allows the upper part of the outer window 21 to be cooled by the flow of the air stream G along the upper wall 66 of the latter. .

The crosspiece 46 comprises at least one wall extending beyond the outer glass 21 of the door 4 to form a vertical part of the air channel 65 along an outer surface 31 of the outer glass 21 of said door 4.

Thus, the air flow G makes it possible to cool the upper part of the door 4 and in particular the upper part of the outer window 21. This air channel 65 makes it possible to cool the zone of the outer ice 21 close to the handle 30 for opening and closing the door 4.

This air channel 65 extending vertically along the outer surface 31 of the outer window 25 avoids a looping of the air leaving at least one ventilation channel 12 opening through at least one opening 14 arranged front face 3 of the oven 1.

The crosspiece 46 comprises a spacing means 63 of an air flow F of the door 4 to prevent the looping of said air flow F exiting said oven 1.

Said extension means 63 of the cross member is a beak-shaped element.

Thus, the air flow F leaving said oven 1 by at least one ventilation channel 12 is remote from the door 4 and in particular air inlet openings. The air flow F is remote from the door 4 to avoid creating additional heat input. The flow of air F is moved in a direction inclined so as to avoid an air flow along the outer wall of the outer glass 21 of the door 4. The air flow F is moved away by said extension means 63 of the crossmember 46 to prevent a loop of hot air leaving said at least one ventilation channel 12 through said fresh air inlet openings of the ventilation device 10 of the oven 1.

In the embodiment of the invention illustrated in figure 8 the air flow G of the air channel 65 has at least one inlet opening 68 between the bill-shaped element 63 of the air deflector 55 and the outer wall 21 of the door 4.

The air channel 65 opens into a ventilation duct 69 made between the inner ice 25 and the outer ice 21 of the door 4.

Thus, a depression is exerted inside the door 4 by the suction generated by a ventilation device 10 to allow the suction of a fresh air flow G from the outside of the door 4 to the door. interior of said door 4. The fresh air flow G of the air channel 65 opens into a ventilation duct 69 formed between the inner ice 25 and the outer ice 21 of the door 4 where a flow of air flows. air P. The air flow P and the air flow G mix to cool the heating of the door 4.

The flow of fresh air G is sucked by the air flow P by a depression formed between a ventilation channel of the door allowing a flow of air from bottom to top in said door 4 and the outside of said door 4 .

The air flow G makes it possible to cool the upper part of the outer door window 21 and the crossmember 46 by the flow of fresh air inside the air channel 65 coming from outside the oven 1 .

Preferably, the air channel 65 extends over the width K of said at least one wall 63 extending beyond the outer window 21 of the door 4.

Thus, the outer window 21 and the crossmember 46 are cooled along their entire length by the air channel 65. The air channel 65 of the fresh air flow G makes it possible to uniformly cool the upper part of the door 4 and to particularly the non ventilation area 67 inside the door 4.

In practice, the air channel 65 has a thickness e extending in a range between 0.3 mm and 2 mm.

The thickness e of the air channel 65 is dimensioned according to the cooling required for the upper part of the door 4. The thickness e of the air channel 65 is the means to guarantee the cooling of the door 4 in part high and in particular the non-ventilation zone 67 of the latter.

The air channel 65 draws fresh air from the outside through a depression generated inside the door 4. This depression is generated by the ventilation device 10 creating a suction in the door 4 of the bottom up.

The pressure at the upper part of the spout-shaped member 63 of an air deflector 55 is greater than the pressure below the spout-shaped member 63 also to create a depression and thus to favor a fresh air intake to the air channel 65.

The air channel 65 has a bent shape between the outer ice 21 and the cross 46.

The depression exerted inside a ventilation duct 69 formed between the inner ice 25 and the outer ice 21 of the door 4 allows the flow of a fresh air flow G along the outer ice 21 of the door 4, and in particular along the outer surface 31 and the upper wall 66 of said outer glass 21. The flow of fresh air G flows from the outside of the door 4 inwards of it.

The outside air is sucked by vacuum into the air channel 65 to be introduced into a space 69 formed between the inner ice 25 and the outer ice 21 of said door 4.

The crossmember 46 is fixed to a fastener element 24 assembled with the outer mirror 21, said fastener element 24 comprising at least one opening 70 to allow the flow of a stream of air G from the air channel 65 arranged between the outer ice 21 and the cross 46.

Said at least one opening 70 of the fixing element 24 makes it possible to achieve an air flow by minimizing the pressure losses between the air channel 65 and a space 69 formed between the inner ice 25 and the outer ice 21 of the door 4.

In this way, the air flow does not encounter obstacles to the passage of the fresh air flow G from the air channel 65.

The crossmember 46 also comprises at least one opening 71 facing said at least one opening 70 of a fastening member 24. In this way, the air flow of the fresh air flow G is achieved with a minimum of losses.

The spacing between the upper wall 66 of the outer window 21 and the crossmember 46 to provide the air channel 65 of the fresh air flow G is achieved by means of flutes located on a bottom wall of said crossmember 46.

The crosspiece 46 is placed in abutment with an upper wall 38 of the door frame 23 and below at least one ventilation channel 12, said at least one ventilation channel 12 opening at least on the front face 3 of said oven 1.

Thus, the cooling of the door 4 is optimized for ventilation of the door 4 comprising a flow of air P flowing at least in a portion of the door 4 from bottom to top.

The positioning of the crossmember 46 with respect to the door frame 23 and said at least one ventilation channel 12 makes it possible to guarantee the passage of a stream of fresh air G which is effective so as to cool the non ventilation zone of the door 4 In this way the surface of the outer window 21 vis-à-vis the handle 30 is effectively cooled to avoid any risk of burning the user.

Preferably, the ventilation duct 69 formed between the inner ice 25 and the outer mirror 21 is at least in flow relation with the air channel 65 of the fresh air stream G.

The flow of air P flows at least along the outer ice 25 of the door 4 to allow effective cooling of the outer surface 31 of the outer glass 21 of the door 4 and to ensure sufficient suction of the flow fresh air flow G.

The air flows P and G are mixed inside the door 4 and then sucked by the ventilation device 10 into a ventilation duct 16, in particular in the upper part of said door 4. The ventilation device 10 creates a depression in the ventilation channel 16 to suck air from the ventilation channel 65 and the channel formed between the outer glass 21 and the inner ice 25. This mixture of air P air flow and G makes it possible to cool the top of the door 4 and to bring fresh air into the ventilation device 10 so as to cool all the members constituting the oven 1.

We will now describe, with reference to Figures 1 to 9 , a necking means of a passage section of an air flow F at an end of a blowing zone of said at least one ventilation channel of a cooking oven according to the invention.

The baking oven 1 comprises a basic structure provided with a cooking chamber 2 having an opening 26 on the front face 3 closed by a door 4.

Said cooking chamber 2 is surrounded by a housing 5.

Said basic structure also comprises a ventilation device 10 provided with at least one ventilation channel 12 placed between the cooking chamber 2 and the housing 5.

Said at least one ventilation channel 12 opens at least on the front face 3 of said furnace 1.

The door 4 is provided with at least one inner window 25 vis-à-vis the opening 26 of the cooking chamber 2 and an outer window 21 positioned towards the outside of said oven 1.

The baking oven 1 comprises at least one necking means 75 of a passage section of an air flow F at one end of a blowing zone of said at least one ventilation channel 12.

Said at least one necking means 75 may be an identical element to the air deflector 60 defined above.

Said at least one necking means 75 of a passage section of an air flow F at one end of a blowing zone of said at least one ventilation channel 12 can be positioned at least partially inside. said at least one ventilation channel 12 and makes it possible to modify said basic structure of said furnace 1 of a first air-flow device to at least a second air-flow device.

Thus, said at least one necking means 75 of a passage section of an air flow F makes it possible to allow the passage of a furnace 1 from a first air-flow device to at least one second air-flow device for adapt to the different decorations of the different models of cooking ovens without modifying the basic structure of said oven 1.

Said baking oven 1 comprises a single basic structure for all models to adapt to the different decorations through said at least one necking means 75 of a passage section of an air flow.

The cost of obtaining the various models of cooking ovens is optimized with the only means of necking 75 of a passage section of an air flow F.

Said at least one necking means 75 of a passage section of an air flow F is assembled or not during the production of the cooking ovens to customize the decor of the various models according to the brands and markets of marketing.

The shape of said at least one necking means 75 of a passage section of an air flow F is adapted to each aeration device of a cooking oven 1 to allow different decorations to be made.

Said at least one necking means 75 of a passage section of an air flow F is a part at least partially assembled in a blow zone 73 of at least one ventilation channel 12 and can not be while in motion during use of the baking oven 1. In this way, the reliability of the baking oven 1 is increased and does not require an adaptation of the ventilation device according to the operating mode of the baking oven 1.

Said at least one necking means 75 of a passage section of an air flow F makes it possible to obtain sufficient cooling performance of the cooking oven 1 without the need to modify the ventilation device 10 during use of said oven 1.

Furthermore, said at least one necking means 75 of a passage section of an air flow F of a blowing zone 73 of a ventilation channel 12 does not require moving parts for the passage from a first ventilation device to at least a second ventilation device of an oven 1. In this way, the costs of obtaining the various models of cooking ovens provided with such a means of necking 75 of a passage section of an air flow are minimized.

The first ventilation device is devoid of said at least one necking means 75 of the passage section of an air flow F, and in that said at least one second ventilation device is provided with said at least one necking means 75 of the passage section of an air flow F.

Thus, said at least one necking means 75 of the passage section of a stream air F is adapted to be mounted or not in at least a portion of said at least one ventilation channel 12 to allow the passage of a first air flow device to at least a second air flow device.

In this way, the basic structure of the baking oven 1 provides a first simple aeraulic device and the lowest cost. The cooling of the elements constituting the baking oven 1 does not require a particular air circulation.

In addition, the passage of a first ventilation device to at least a second ventilation device of a baking oven 1 makes it possible to modify the section of at least one air outlet opening 14 on the front face 3 of the oven 1 d at least one ventilation channel 12, in particular to obtain a variable width of said at least one air outlet opening 14.

In one embodiment of the invention, said at least one air outlet opening 14 on the front face 3 of the oven 1 of at least one ventilation channel 12 is situated between the lower part of a control panel ( not shown) and the upper part of a door 4 closing an opening 26 of a cooking chamber 2.

The height of said at least one air outlet opening 14 can be modified by the covering part of it by the control panel.

The decrease in height of the at least one air outlet opening 14 may be implemented with a flow of air F coming out substantially horizontally from the front face 3 of the oven 1 in order to prevent the vision of said at least one channel ventilation 12 by the user.

In another embodiment of the invention, the upper part of the door 4 of the cooking oven 1 may comprise an air deflection device 55 for directing the air flow F in an inclined direction.

The passage section of the air flow F in at least a portion of the blowing zone of said at least one ventilation channel 12 and in the air deflection zone 72 may be of constant height H, as previously described.

Said at least one necking means 75 of the passage section of an air flow F at one end of a blowing zone of said at least one ventilation channel 12 comprises an inclined wall 74 for directing the flow of air F in a predetermined direction.

The inclined wall 74 of said at least one necking means 75 of the passage section of an air flow F makes it possible to bypass decorative elements of the door 4 so as to avoid any airflow disturbance at the outlet of said at least one ventilation channel 12.

In this way, the air flow F leaves the at least one ventilation channel 12 without disturbances and optimizing the performance of the ventilation device 10 of the oven. cooking 1.

In practice, said at least one necking means 75 of the passage section of an air flow F at one end of a blowing zone of said at least one ventilation channel 12 comprises at least one necking element 75 on the width N of said passage section of an air flow F.

Thus, the passage of a first aeraulic device to at least a second aeraulic device is achieved simply during assembly of the baking oven 1 by the manufacturer.

Said at least one necking element 75 of the width N of said passage section of an air flow F is located inside said at least one ventilation channel 12 and is not visible to the user.

Preferably, said at least one necking means 75 of the passage section of an air flow F at one end of a blowing zone of said at least one ventilation channel 12 comprises a necking element 75 on the width N said passage section of an air flow F on either side of a median plane M of said at least one ventilation channel.

Thus, the air flow F is not disturbed by at least one necking element 75 located on one side of the median plane M of said at least one ventilation channel 12. The distribution of the air flow F is uniform on the width N of the passage section formed inside said at least one ventilation channel 12.

According to one embodiment of the invention, each necking element 75 of the width N of said passage section of an air flow F has an identical shape.

This characteristic can be implemented in the case of a radial fan 11 or with a channelized blow zone and the air flow is discharged uniformly.

According to another embodiment of the invention, the necking elements 75 located on either side of the median plane M of said at least one ventilation channel 12 may be of asymmetrical shape in the case of a radial axial fan 11 where the blowing zone requires a ventilation channel 12 of specific shape, in particular in the form of a helicoid.

According to another preferred feature of the invention, the passage of the air flow F of the first air flow device is substantially horizontal and the passage of the air flow F of said at least one second air flow device is oriented in a predetermined inclined direction.

Thus, the passage of a first air flow device to at least a second air flow device takes place between a first simple device and at least a second more complex air flow device.

In the case of the first aeration device where the passage of the air flow F is substantially horizontal, the height of the passage of the air flow F can be decreased so as to give priority to the aesthetics of the baking oven 1.

In the case of at least a second ventilation device where the passage of the air flow F is oriented in a predetermined inclined direction, the air flow F is directed so as not to interfere with the user receiving a flow of air. hot air or to avoid coming into contact with an obstacle decreasing the efficiency of the ventilation device 10.

An attachment element 76 is positioned along a median plane M of said at least one ventilation channel 12 to maintain a gap between a bottom wall 77 and an upper wall 78 of said at least one ventilation channel 12.

Thus, said at least one necking means 75 of a passage section of an air flow F is assembled and fixed inside said at least one ventilation channel 12. Said fixing element 76 makes it possible to obtain a simple assembly and at the least cost while ensuring a proper assembly of the oven 1.

Said fixing element 76 makes it possible to prevent a wall 77 or 78 of said at least one ventilation channel 12 from folding back and to reduce the height of the air passage. In this way, the height between the upper wall 78 and the bottom wall 77 of said at least one ventilation channel 12 is guaranteed.

In one embodiment of the invention, the passage of the air flow F of said at least one ventilation device is oriented downwards and below a door handle 4.

Thus, this aeraulic device prevents the vision of said at least one ventilation channel 12 by the user and to direct the air flow F in a direction that does not impede the user.

In addition, the rear wall 62 of the handle 30 is cooled by the passage of the air flow F.

Of course, many modifications can be made to the embodiment described above without departing from the scope of the invention.

Claims (10)

1. A cooking oven door comprising at least one inner pane (25) and one outer pane (21) mounted on a doorframe (23), the outer pane (21) being assembled with a crosspiece (46), said crosspiece (46) being positioned abutting a lateral wall (38) of the doorframe (23), characterized in that said crosspiece (46) is fastened with the doorframe (23) by at least one element (45) of at least one door (4)-locking means.
2. A cooking oven door according to claim 1, characterized in that said at least one element (45) of at least one door (4)-locking means makes it possible to fasten the doorframe (23) and the crosspiece (46) and to block the door (4) of the cooking oven (1) in a closed position.
3. A cooking oven door according to claim 1 or 2, characterized in that:

   - the doorframe (23) is assembled with at least one hinge (43) and an inner pane (25) in order to form a counter door subassembly (49),

   - the outer pane (21) is assembled with a fastening element (24) and a door (4) handle (30) by screwing means (50), also with the crosspiece (46) fastening onto the fastening element (24), in order to form a door-setting subassembly (51),

   - the counter door subassembly (49) and the door-setting subassembly (51) being assembled by said at least one element (45) of at least one door (4)-locking means.
4. A cooking oven door according to one of the claims 1 to 3, characterized in that said at least one element (45) of at least one locking means comprises fastening means (47) which use elastic clicking.
5. A cooking oven door according to claim 4, characterized in that the doorframe (23) comprises at least one opening (52) cooperating with at least one opening (53) in the crosspiece (46) in order to enable them to be fastened using fastening means (47) which use elastic clicking of said at least one element (45) of at least one door (4)-locking means.
6. A cooking oven door according to one of the claims 1 to 5, characterized in that said at least one element (45) of at least one door (4)-locking means is a door (4)-locking latch.
7. A cooking oven door according to claim 6, characterized in that the crosspiece (46) is fastened with the doorframe (23) by two locking latches (45) of the door (4).
8. A cooking oven door according to one of the claims 1 to 7, characterized in that said at least one element (45) of at least one locking means comprises a housing (48) cooperating with a finger of a lock assembled on the oven (1).
9. A cooking oven door according to one of the claims 1 to 8, characterized in that it comprises at least one intermediate pane (27, 28) placed between the inner pane (25) and the outer pane (21).
10. A cooking oven door according to one of the claims 1 to 9, characterized in that the inner pane (25) comprises at least one fastening means (34) which uses elastic clicking cooperating with the doorframe (23).

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