ES2616759T3 - Cooking oven having a step height of a constant air flow - Google Patents

Abstract

Cooking oven comprising a cooking enclosure (2) having an opening (26) in the front face (3) sealed by a door (4), said cooking enclosure (2) being surrounded by a housing (5), said cooking oven (1) also comprising a ventilation device (10) provided with at least one ventilation channel (12) disposed between the cooking enclosure (2) and the housing (5), said at least one outlet channel ventilation (12) at least on the front face (3) of said oven (1), the door (4) being provided with at least one inner glass (25) facing the opening (26) of the cooking enclosure (2) and an outer glass (21) disposed towards the outside of said oven (1), said door (4) also comprising a handle (30), a height (H) of the passage section of an air flow (F) is constant at least in a part of a blowing zone (73) of said at least one ventilation channel (12), the air deflection zone (72) is at least formed in the former inside the cooking oven (1) and from the front face (3) of said oven (1) characterized in that the height (H) of the passage section of an air flow (F) is also constant in a deflection zone air (72).

Description

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DESCRIPTION

“Cooking oven that has a step height of a constant air flow”

The present invention relates to a cooking oven equipped with a channeling device for a constant section air flow.

In general, the present invention relates to domestic cooking ovens in which a cooling device is implemented to improve the cooling performance of the structure and of the cooking oven door throughout an operation of cooking or even a cleaning operation.

This oven can be pyrolytic, in which the temperature inside the cooking chamber can reach 500 ° C during cleaning cycles by pyrolysis.

It is known to use cooking room doors comprising several panels, generally of glass, mounted in parallel with respect to each other in a door frame. In particular, a cooking door generally comprises an inner glass intended to seal the cooking enclosure, an outer glass that appears on the front of the cooking apparatus and one or more intermediate crystals arranged in a door frame between the glass exterior and interior glass.

The intermediate crystals allow, by creating insulating air jets, and thanks to a ventilation that generates cooling air flows that circulate between the different glass of the door, limit the increase in temperature of the door, in particular at the level of the outer glass.

Cooking ovens are known which comprise a door provided with a door frame, an interior glass, an exterior glass, one or several intermediate crystals, and fixing and assembly means for said crystals.

These cooking ovens comprise a ventilation device whose air inlet openings are arranged in the lower part of the door. The air circulation is generated by a fan that creates a depression at the top of the door either by direct aspiration or even by a Venturi effect. This air flow aims to ventilate the door of an oven from the bottom up.

These cooking ovens also comprise a return ventilation duct that ends at one end on the front face of the oven and above the door to expel air out of the oven, by means of a fan disposed at an opposite end of said duct of said return ventilation. In certain baking ovens, an aspiration duct is disposed between an air inlet opening disposed on the front face of the oven and a fan aspiration zone. Said air inlet opening is in communication with the air circulation inside the door.

However, these cooking ovens have the disadvantage of not channeling the air after the outlet opening of a return ventilation channel. Consequently, the flow of air flowing at the outlet of said return ventilation channel has a tendency to diverge and come into contact with the elements that are placed in front of the front face of the oven, such as for example the door handle, and cause electrical disturbances in the air outlet area of the return ventilation channel. The performance of a cooking oven ventilation device decreases and significant heating is observed in the components that constitute the oven and in particular in the door.

In addition, the flow of air flowing at the exit of said return ventilation channel that has a tendency to diverge is aspirated by the depression created in the door, by means of the oven ventilation device. Consequently, this air flow forms a loop inside the door and the baking oven. The air introduced by the cooling of the door and the cooking oven is not fresh air from the outside of the oven, but is composed of air heated by the passage into the oven ventilation device. The heating of the baking oven is high.

Also known is EP 0 947 776 A2 which describes a cooking oven comprising an air deflection zone arranged inside the door, which seals the cooking enclosure. The air deflection zone comprises a lower wall that protects the interior space of the door formed by glass panels and an upper wall of a handle support.

Document DE 297 24 430 U1 is also known, which describes a cooking oven comprising a door in which an air guide duct is arranged between glass panels of said door and an actuation handle of said door. The handle has an inner wall that allows directing a flow of air towards the bottom.

The present invention aims to solve the aforementioned drawbacks, and propose

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a cooking oven equipped with a channeling device for a constant section air flow at the outlet of at least one ventilation channel, which allows to improve the cooling of the door and the structure of the cooking oven.

For this, the present invention relates to a cooking oven comprising a cooking enclosure having an opening in the front face sealed by a door, said cooking enclosure being surrounded by a housing, said cooking oven also comprising a device of ventilation provided with at least one ventilation channel disposed between the cooking enclosure and the housing, said at least one ventilation channel leading to at least the front face of said oven, the door being provided with at least one inner glass facing the opening of the cooking enclosure and an outer glass arranged towards the outside of said oven, said door also comprising a handle.

According to the invention, a height H of the passage section of an air flow F is constant at least in a part of a blowing zone of said at least one ventilation channel and in an air deflection zone, the zone being air deflection at least formed outside the cooking oven and from the front face of said oven.

Thus, the air flow F is channeled in a section of constant height H, in at least a part of a blowing zone of said at least one ventilation channel and in an air deflection zone, to avoid loop formation of the air in the ventilation device and in the oven door.

In addition, the air flow F is channeled so that it does not come into contact with the door handle or any other decoration element of the oven, to avoid creating turbulence at the level of the air outlet of said at least one ventilation channel which flows into the front face of the oven.

In this way, the performance of the ventilation device is improved and the heating of the elements constituting the oven and the oven door is minimized.

The invention makes it possible to improve the reliability of the cooking oven and ensure user safety by avoiding overheating of a component that constitutes the cooking oven.

It also allows you to limit the temperature of the exterior glass and the door handle to avoid any risk of burn for the user.

The constant height section H in at least a part of a blowing zone of said at least one ventilation channel and in an air deflection zone makes it possible to avoid creating turbulence for the flow of air F inside said section.

The air deflection zone is formed by a parallel upper wall and a lower wall to determine the constant height H of the air flow passage section F above the door of said oven.

In practice, the air deflection zone is formed by at least one crossbar arranged below said at least one ventilation channel and by at least one air deflector.

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

According to a preferred feature of the invention, the air flow F is directed below a door handle by the air deflection zone disposed at one end of a blow zone of said at least one ventilation channel.

In this way, the air deflection zone, formed by the crossbar and the air deflector, makes it possible to prevent the vision by the user of said at least one ventilation channel that flows into the front face of the oven. The aesthetics of the cooking oven is improved by placing the door handle in front of at least one opening arranged in the front face of the oven for the return of the air through said at least one ventilation channel.

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

At least a part of the rear wall of the handle may constitute an extension of the air deflection zone.

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

Thus, the flow rate of the air flow F of the ventilation device by said at least one ventilation channel allows

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guarantee the cooling of the elements that constitute the baking oven. The air flow rate F can be adapted in this way so that no inconvenience is provided to the user and the level of noise produced by the cooking oven is limited. The oven cooling fan is sized according to the constant height H of the passage section of an air flow F in at least a part of a blowing zone of said at least one ventilation channel and in a deflection zone of air.

Other particularities and advantages of the invention will be further derived from the following description.

In the attached drawings, provided by way of non-limiting examples:

- Figure 1 illustrates a sectional view of a cooking oven according to the invention;

- Figure 1 Bis is a view of detail A of Figure 1;

- Figure 2 illustrates an exploded view of a cooking room door, of a cooking oven according to the invention;

- Figure 3 illustrates a perspective view of an assembled door for cooking enclosure, of a cooking oven according to the invention;

- Figure 4 illustrates a sectional view of at least one element of at least one door locking means assembled with the door frame and a crossbar according to an embodiment of the invention;

- Figure 5 illustrates the subassemblies that constitute a cooking room door, of a cooking oven according to the invention;

- Figure 6 illustrates a sectional view of a cooking oven door according to the invention;

- Figure 7 illustrates a perspective view of an air deflection device of a door of a

baking oven according to the invention;

- Figure 8 illustrates a sectional view of an upper part of a cooking oven door according to the invention; Y

- Figure 9 illustrates a face view of a cooking oven according to the invention.

Firstly, with reference to Figure 1, a cooking oven according to the invention is described.

A cooking 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 lower wall 8.

The presence of a sealing gasket element 9 is observed as illustrated in Figure 1, which ensures the sealing by a contact between the flask 2 and the door 4.

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

It is also observed that the figures are schematized and that numerous elements necessary for the operation of the cooking oven, for example the control means, the thermal insulator surrounding the muffle, ... have been omitted and it is not necessary to describe them here in detail .

In the description of the invention carried out below, the assembly constituted by the flask and by the surrounding thermal insulator is considered as a single element. This set will be called cooking grounds below in this document.

In this case and not at all limiting, the ventilation device 10 comprises at least one suction channel 16, at least one return channel 12 and a fan 11. The suction channel 16 has at least one inlet opening 17 in the front face 3 of the cooking oven 1 and at least one outlet opening 18 in a fan suction zone 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 arranged in the door 4. The return channel 12 comprises at least one inlet opening 20 in a blower zone of the fan 11 and at least one outlet opening 14 on the front face 3 of the oven cooking 1, to expel the air out of the oven 1.

In the first place, a door for cooking enclosure according to one embodiment of the invention is described with reference to Figures 1 and 2.

Normally, this door 4 for cooking room 2 can be equipped in a domestic cooking oven 1, and for example an electric cooking oven adapted to implement a pyrolysis cycle for cleaning the cooking room 2. In this case, The temperature inside the cooking room 2 can reach 500 ° C.

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An example of embodiment of a door 4 for cooking enclosure 2 is illustrated in Figure 2.

The door 4 comprises an outer glass 21 intended to form the front part of the apparatus. This outer glass 21 generally forms a decoration and is formed by a transparent surface in its entire surface or at least a main part of its surface to allow visualization of the interior of the cooking enclosure 2. The outer glass 21 can be decorated with a front part of decoration 22, for example, stainless steel.

This outer glass 21 is associated with a door frame 23. This door frame 23 is mounted in solidarity on the outer glass 21 by means of a fixing element 24 and different fixing elements of the type fixing screws, which do not They are described in detail in this case.

In this embodiment of the invention, the door frame 23 is rectangular and is intended to accommodate an interior glass 25. This interior glass 25 is removably mounted on the door frame 23, as described below. This inner glass 25 is intended to be placed in front of the cooking enclosure 2 and to seal an opening 26 thereof.

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

Obviously, no intermediate glass or a single intermediate glass or even a number greater than two can be provided in door 4.

The crystals 25, 27 and 28 comprise transparent surfaces that allow the user to observe through the door 4 the contents of the cooking space 2.

In this embodiment, the crystals 25, 27 and 28 are constituted by transparent surfaces.

The intermediate windows 27 and 28 are mounted on the door frame 23 thanks to maintenance means 29.

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

The inner glass 25 facing the opening 26 of the cooking enclosure 2 is fixed to the door frame 23 by means of elastic interlocking means 34 or even by means of adhesion assembly means.

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

As illustrated in Figure 3, the door frame 23 further comprises at least one recess 36 forming a grip space at the edge of the intermediate crystals 27 and 28.

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

To limit the temperature increase of the door 4, it is generally associated with a ventilation device 10 adapted to aspirate and / or blow air through the door 4 by direct aspiration or by a Venturi effect, between the different crystals 21, 25, 27 and 28.

To allow air flow to circulate, the door frame 23 comprises grooves 37 at the level respectively of the upper edge 38 and the lower edge 39 of the door 4.

The door 4 comprises at least three crystals 21, 25 and 27 parallel to each other and separated so that two air passages are formed for the flow of an air stream.

In the case of a cooking oven door 4 with a pyrolytic cleaning mode, the door 4 can comprise four crystals 21, 25, 27 and 28 of which two intermediate crystals 27 and 28 separated so that three jets are formed of air 40, 41 and 42, of which the central air jet 41 allows the flow of an air stream represented by the arrows P, as illustrated in Figure 1.

In this embodiment of the invention, the two air jets 40 and 42 arranged between the crystals

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intermediate 27 and 28 and said inner and outer crystals 25 may or may not allow the flow of an air stream.

The door 4 also comprises two hinges 43 that allow it to be connected to the front part 44 of the apparatus 1. These hinges 43 are formed by a metal body, by a spring and by an arm.

Said two hinges 43 allow the opening and closing of the door 4. These hinges 43 are formed by a metal body, inside the hinge body 43 a spring is arranged. These hinges 43 allow 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 space 2, and to keep the door 4 in a balanced position between the open position and the closed position. The hinges 43 are connected on one side to the door 4 and on the other hand to the front face 3 of an oven 1 by means of an arm.

Now, with reference to Figures 1 to 5, a door for cooking enclosure is described according to an embodiment of the invention.

A cooking oven door 4 comprises at least one inner glass 25 and an outer glass 21 mounted on a door frame 23.

The outer glass 21 is assembled with a crossbar 46, said crossbar 46 being disposed in support with a side wall 38 of the door frame 23, and said crossbar 46 being fixed to the door frame 23 by at least one element 45 of at least one locking means (not shown) of door 4.

Thus, the assembly of the door 4 is quick and simple, minimizing the number of elements that constitute said door 4. The blocking of the door 4 can be carried out by means of said at least one element 45 of at least one blocking means for the whole of the Baking oven models 1. Said at least one element 45 of at least one door locking means 4 constitutes a door assembly means 4 and also a door locking means 4. In this way, the means The necessary fixing for the assembly of the door 4 are simplified and minimized, hence an optimized cost of obtaining the door 4.

Said at least one element 45 of at least one door blocking means 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 bulb (not shown) disposed inside of the door 4 or even in a wall of the cooking room 2.

The use of said at least one element 45 of at least one door locking means 4 for the assembly of the door 4 makes it possible to ensure a precise arrangement with respect to the different elements constituting said at least one locking means. In this way, the blocking of the door 4 is guaranteed for each use of the oven 1 with total safety for the user. Said at least one element 45 of at least one door locking means 4 forms part of the functional chain of the door assembly 4 and thus allows reducing the functional clearance tolerances between the elements constituting the door 4.

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

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

In practice, door 4 is assembled by constituting subsets to reduce the number of assembly operations and reduce assembly time as illustrated in Figure 5.

The door frame 23 is assembled with at least one hinge 43 and an inner glass 25 to constitute a subset of counterport 49.

The outer glass 21 is assembled with a fixing element 24 and a handle 30 of the door 4 by means of screwing means 50, also with the crossbar 46 being fixed on the fixing element 24 to constitute a subset of door decoration 51.

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

In addition, the door decoration subset 51 can be customized, thus retaining a subset of counterport 49 identical to the set of baking oven models 1. The door decoration subset 51 may allow mounting a handle 30, a crossbar 46 and an exterior glass 21 customized in each model of baking oven 1.

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The assembly mode of the subportion subset 49 and the door decoration subset 51 is identical for each model, by means of said at least one element 45 of at least one door locking means 4.

On the other hand, the traverse 46 can be adapted according to the electric device of the cooking oven 1. The traverse 46 can allow 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 fixing means 47 by elastic interlocking.

Thus, the assembly of said at least one element 45 of at least one means of blocking the cross-member 46 on the door frame 23 can allow for quick and easy assembly and disassembly of the door 4 to allow the change of an element constituting Door 4 during an intervention of the after-sales service.

On the other hand, the assembly time of the door 4 is reduced using fixing means 47 by elastic interlocking. The cost of obtaining the door 4 is also minimized by such fixing means 47.

In addition, the aesthetics of the door 4 of the cooking oven 1 is improved by not letting fixing means 47 visible by the user appear.

The door frame 23 comprises at least one opening 52 that acts together with at least one opening 53 in the crossbar 46 to allow its fixing by means of fixing 47 by elastic interlocking of said at least one element 45 of at least one locking means of the door 4.

Said at least one opening 52 and 53 of the door frame 23 and of the crossbar 46 make it possible to ensure precise assembly. The functional chain of the assembly is mainly guaranteed by means of said at least one opening 52 and 53 for the arrangement of said at least one element 45 of at least one door locking means 4. The assembly of the door 4 and in particular of the crossbar 46 and of the door frame 23 by means of said at least one element 45 of at least one locking means is realized with a minimum clearance and a low value.

In this manner said at least one element 45 of at least one locking means of the door 4 is precisely arranged to act in conjunction with said at least one locking means. The blocking of the door 4 in the closed position is thus guaranteed by the provision of said at least one element 45 of at least one means of blocking the door 4.

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

Thus, the door lock 4 can easily be implemented with at least one classical locking means. The use of at least one classical blocking means allows to minimize the cost of obtaining the oven 1.

Preferably, the traverse 46 is fixed to the door frame 23 by two locking notches 45 of the door 4.

Thus, the door frame 23 is fixedly fixed with the cross member 26 by the two locking notches 45 of the door 4.

In addition, said at least one locking means can be arranged on both sides of the vertical middle plane that crosses the cooking oven 1, or even two locking means can allow the door 4 to be locked in the closed position.

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

Said at least one element 45 of at least one door lock 4 is a piece of temperature-resistant plastic material, during a cooking operation or even during a pyrolysis cleaning operation.

In practice, said at least one element 45 of at least one blocking means comprises at least one housing 48 that acts together with a finger of a lock assembled on the oven 1.

Thus, said at least one locking means comprises a latch that is inserted into at least one housing 48 of said at least one locking notch 45.

The door 4 of the cooking oven 1 comprises at least one intermediate glass 27 or 28 disposed between the inner glass 25 and the outer glass 21.

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

Said at least one intermediate glass 27 or 28 may be assembled with maintenance elements 29. The maintenance elements 29 are mounted at the corners of said at least one intermediate glass 27 or 28. The maintenance elements 29 in this embodiment are four and are intended to be housed in the four corners of the door frame 23. In this way at least one intermediate glass 27 or 28 is mounted in the four corners of said door.

The door frame 23 comprises four inlaid-shaped corners 54, as illustrated in Figure 2, adapted to respectively accommodate each square-shaped maintenance element 29.

The inner glass 25 comprises at least one fixing means 34 by elastic interlocking that acts together with the door frame 23.

Thus, the inner glass 25 is removable and can allow its removal to allow cleaning of at least one intermediate glass 27 or 28 of the door 4. Said at least one intermediate glass 27 or 28 can also be removed from the door 4 by removing the elements of maintenance 29 of the door frame 23. In this way, each glass 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 blocking means by means of fixing 47 by elastic interlocking, and of the inner glass 25 on the door frame 23 also by means of fixing 34 by elastic interlocking , allows to completely disassemble said door 4 without risk of damaging the elements that constitute the latter.

Now, with reference to Figures 1 to 9, a device for channeling an air flow with a constant sectional height at the outlet of at least one ventilation channel of a cooking oven according to the invention is described.

The channeling device of 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.

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

Thus, the air flow F is channeled in 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 formation loop of the air in the ventilation device 10 and in the door 4 of the oven 1.

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

Also, the air flow F is away from the door 4 of the oven 1 to avoid sucking air from the ventilation device 10 through said at least one opening 58 disposed in the lower part of the door 4.

The air flow F leaving the air deflection zone 72 is little or nothing turbulent and is oriented in a certain direction that does not cause a return of hot air to the fresh air inlet openings of the cooking oven 1.

In addition, the air flow F is channeled so that it does not come into contact with the handle 30 of the door 4 or any other decorative element of the oven 1, to avoid creating turbulence at the level of the air outlet of said at least one ventilation channel 12 leading to the front face 3 of the oven 1.

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

The invention makes it possible to improve the reliability of the baking oven 1 and guarantee the safety of the user by avoiding overheating of a component that constitutes the cooking oven 1.

It also allows to limit the temperature of the outer glass 21 and the handle 30 of the door 1 to avoid any risk of burn for the user.

The constant height section 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 makes it possible to avoid creating turbulence for the air flow F in

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the inside of said section.

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

The air deflection zone 72 is formed by an upper wall 74 and a lower wall 61 parallel to determine the constant height H of the air flow passage section F above the door 4 of said furnace 1.

In practice, the air deflection zone 73 is formed by at least one cross member 46 disposed below said at least one ventilation channel 12 and at least one air deflector 60.

Thus, the constant height section H is guaranteed in the air deflection zone 72. The air flow F can be oriented in a desired direction depending on the position of the handle 30 of the door 4 and said at least one channel of 12 ventilation that flows into the front face of the oven.

The air baffle 60 can be concealed to contribute to the aesthetics of the cooking oven 1. Only the part of the air baffle 60 that serves to give a direction to the air flow F can be visible by the user. This part of the air baffle 60 may allow it to be prevented from viewing the inside of said at least one ventilation duct 12.

Said at least one air deflector 60 is disposed at least partly inside said at least one ventilation channel 12.

Thus, the air baffle 60 can also allow the separation between the upper walls 78 and lower 77 of said at least one ventilation channel 12 of said at least a part of a blowing zone 73 where the height H is constant.

The air flow F is directed below a handle 30 of the door 4 through the air deflection zone 72 disposed at one end of a blow zone 73 of said at least one ventilation channel 12.

In this way, the air deflection zone 72, formed by the crossbar 46 and the air deflector 60, allows the user to prevent vision of said at least one ventilation channel 12 which flows into the front face 3 of the oven 1. The aesthetics of the cooking oven 1 is improved by placing the handle 30 of the door 4 facing at least one opening 14 arranged on the front face 3 of the oven 1, for the return of the air through said at least one ventilation channel 12.

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

At least a part 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 air flow passage section F extends over a range of 10 mm to 25 mm, and preferably of the order of 20 mm.

Thus, the air flow rate F of the ventilation device 10 by said at least one ventilation channel 12 makes it possible to guarantee the cooling of the elements that constitute the cooking oven 1. The air flow rate F can be adapted in this way so that no discomfort is provided for the user and the level of noise produced by the cooking oven 1 is limited. The cooling fan 11 of the oven 1 is sized according to the constant height H of the flow section of a flow of air F in at least a part of a blowing zone 73 of said at least one ventilation channel 12 and in a zone of air deflection 72.

Said at least one air deflector 60 comprises an inclined wall 74 and parallel to an inclined wall 61 of the crossbar 46 to orient the air flow F towards the outside of the oven 1 and away from the outer glass 21.

Thus, the air deflection zone 72 formed by the air deflector 60 and the cross-member 46 makes it possible to prevent the formation of a loop of the air flow F by at least one opening 15 arranged in the lower part of the oven 1 or at least an opening 58 arranged at the bottom of the door 4.

The air returned to the outside of the oven 1 by means of the ventilation device 10 through said at least one ventilation channel 12 makes it possible to orient the air flow F according to an inclined direction, preventing causing discomfort for the user receiving a flow of hot air.

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The traverse 46 of the air deflection zone 72 may have the features analogous to the air deflection device 55 which will be described below.

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

Thus, the flow of air F that flows into the front face 3 of the oven 1 through said at least one ventilation channel 12 does not cause discomfort for the user receiving a flow of hot air on the face or upper body.

In addition, the air flow F is directed towards the outside of the oven 1 without aspirating at least one opening 15 or 58 arranged in the lower part of the oven 1. Said at least one opening 15 arranged in the front face 3 of the oven 1 for cooling the structure by leaving an air passage 64 below the oven 1 and said at least one opening 58 in the lower part of the door 4 are away from the air flow F to avoid a loop formation of the air and cause too important heating of the elements that constitute the baking oven 1.

The air flow F is oriented so that it moves away from the outer glass 21 of the door 4.

The width D of the inclined wall 74 of said at least one air deflector 60, illustrated in Figure 9, is

substantially equal to the width L of the inclined wall 61 of the crossbar 46.

Thus, the air deflection zone 72 is of constant section and allows to conserve the speed of the air flow F. The air flow F does not experience a divergence or a convergence that can increase the noise level during the return of the air towards the outside of the oven 1. The air flow F cannot create turbulence that has the effect of decreasing the performance of the ventilation device 10 of the oven 1 and creating disturbances at the level of said at least one air outlet opening 14 arranged in the face front 3 of the oven 1.

The width N of the air flow passage section F of said at least a part of a blowing zone 73

of said at least one ventilation channel 12, illustrated in Figure 9, is less than or equal to the width D of the air flow passage section F of the air deflection zone 72.

The width N of the air flow passage section F of said at least a part of a blowing zone 73 of said at least one ventilation channel 12 is sized so that the head losses of said at the at least one ventilation channel 12. With a width N of said at least a part of a blowing zone 73 of said at least one ventilation channel 12 smaller than the width of the air flow passage section F of the area of Air deflection 72 is allowed, along the air flow in this area, to maintain a constant air flow rate F or at least sufficient to cool the elements constituting the cooking oven 1.

Said at least a part of a blowing 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 that creates a turbulence and modifies the orientation of said air flow F. The air flow F flows along a smooth and homogeneous wall to avoid disturbances that cause a decrease in the performance of the ventilation device 10 of the cooking oven 1.

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

Thus, the air flow F circulates in a constant section space to avoid hydraulic disturbances. The air flow rate F is therefore constant and allows to optimize the cooling performances of the cooking oven 1.

Now, with reference to Figures 1 to 9, an air deflection device of a cooking oven is described according to an embodiment of the invention.

The air deflection device 55 of the door 4 is constituted by at least one crossbar 46 comprising at least side walls 56 and at least one upper wall 57.

Said air deflection device 55 of the door 4 is constituted by at least one crossbar 46 of thermoplastic material located in the upper part of the door 4 and which extends over the entire width of the door frame 23.

This air deflection device 55 of the door 4 is assembled so that it reacts elastically

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against the door frame 23, to absorb the deformations experienced by the crystals 21, 25, 27 and 28 that constitute the door 4 during the operation of the baking oven 1.

The air deflection device 55 and the traverse 46 described above can be a single piece as shown in Figures 1 to 8.

In the non-limiting example shown in FIG. 6, the first air flow P penetrates through at least one lower air inlet passage 58 located at the bottom of the door 4 of the cooking oven 1 and exits through at least one passage upper air outlet located at the top of the door 4 and is directed through at least one air inlet opening located at the rear of the air deflection device 55, the air outlet zone of the flow of Air F at the top of the door 4 is represented by reference 59.

Next, the air flow P is aspirated into an aspiration ventilation channel 16 of the ventilation device 10.

The air deflection device 55 allows a ventilated door 4 to be created by passing an air flow P between the inner glass 25 and the outer glass 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 arranged in the upper or lower part of the cooking oven 1 and said outside air that has circulated between the housing 5 and the cooking chamber 2. The air mixture is ejected in a return ventilation channel 12 in the direction of the front face 3 of the cooking oven 1 to exit through at least one opening 14.

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

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

The door 4 is provided with at least one inner glass 25 facing the opening 26 of the cooking enclosure 2 and an outer glass 21 arranged towards the outside of said oven 1.

The air deflection device 55, illustrated in Figures 7 and 8, comprises at least one inclined wall 61 for directing a flow of air F leaving said at least one ventilation channel 12 on the front face 3 of the oven 1 towards the exterior of said furnace 1, and said at least one inclined wall 61 of said air deflection device 55 extends beyond the outer glass 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 glass 21 facing the handle 30 of the door 4.

The air deflection device 55 also allows cooling the rear part of the handle 30 of the door 4 to prevent the user from burning during the manipulation of the oven door 4.

In addition, the air deflection device 55 of the door 4 makes it possible to prevent the formation of a loop 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 not reheated by the operation of the cooking oven 1. Consequently, the cooling of the cooking oven 1 and in particular the structure, components and door 4 is improved.

The air deflection device 55 orients the air flow F in an inclined direction and separating it from the outer glass 21 of the door 4.

On the other hand, the air returned to the outside of the oven 1 by means of the ventilation device 10 is oriented according to an inclined direction that prevents causing a nuisance to the user receiving a flow of hot air.

The air deflection device 55 also makes it possible for the user to prevent vision of said at least one ventilation channel 12 which flows into the front face 3 of the oven 1 so that the aesthetics of the cooking oven 1 is improved by arranging the handle 30 of the door 4 or any other element facing at least one opening 14 arranged on the front face 3 of the oven 1 for the return of the air through said at least one ventilation channel 12.

The door 4 of the cooking oven 1 comprises a handle 30, said handle 30 comprising at least a part of a rear wall 62 adapted to act in conjunction with the air deflection device 55 for orienting

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the air flow F.

Thus, the air flow F leaving said at least one ventilation channel 12 on the front face 3 of the oven 1 is not disturbed by the handle 30 of the door 4. The air flow F is oriented in an inclined direction so that the handle 30 of the door 4 is avoided and without creating turbulence having an air return 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 an embodiment of the invention, the shape of said at least one rear wall 62 of the handle 30 comprises a radius R to allow the flow of a stream of air F without disturbances. Said radius R of said at least one rear wall 62 of the handle 30 may extend in a range between 5 mm and 20 mm, and preferably of the order of 10 mm.

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

Thus, the air flow F that flows into the front face 3 of the oven 1 through said at least one ventilation channel 12 does not cause discomfort for the user. In this way, the user does not receive a flow of hot air in the face

0 in the upper body.

In addition, the air flow F is directed towards the outside of the oven 1 without aspirating through at least one opening 15 arranged in the lower part of the oven 1. Said at least one opening 15 arranged in the front face 3 of the oven

1 to cool the structure by leaving an air passage 64 below the oven 1 and said at least one opening 58 at the bottom of the door 4 are away from the air flow F to avoid a loop formation of the air and cause heating too important of the elements that constitute the baking oven 1.

The air flow F is oriented so that it moves away from the outer glass 21 of the door 4.

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

Thus, the air flow F moves away from the outer glass 21 of the door 4 to avoid the loop formation of the air inside the door 4 of the oven 1. The air flow F is directed towards the outside of the oven 1 without aspirate through at least one opening 15 or 58 disposed in the lower part of the oven 1.

The air flow F is released from the outer surface 31 of the outer glass 21 by means of a nozzle-shaped element 63 and of width D so that any aspiration of the air through the openings 15 or 58 arranged in the lower part of the oven is prevented 1 allowing the cooling of the door 4 and the structure of the oven 1 leaving a passage of air 64 under the cooking chamber 2.

The cooling of the door 4 is improved by removing the air flow F from the door 4 and favoring an entry of fresh air through said at least one opening 58 disposed in the lower part of said door 4.

In a preferable embodiment of the invention illustrated in Figure 6, an axis B of said at least a part 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 device air deflection 55.

Thus, the air flow F is channeled between the inclined wall 61 of the air deflection device 55 and said at least a part of a rear wall 62 of the handle 30 of the door 4.

The air channel formed by the inclined wall 62 of the air deflection device 55 and said at least a part of a rear wall 62 of the handle 30 of the door 4 allows to obtain an air outlet towards the outside of the oven 1 from said to the less a ventilation channel 12 without hydraulic disturbances and without obstacles in the area of said air channel.

Preferably, the inclined wall 61 of the air deflection device 55 extends from the front face 3 of the oven 1 to beyond the outer glass 21 of the door 4 to direct the air flow 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 which flows into the front face 3 of the oven 1 to prevent the user from burning when handling said handle 30 of the door 4.

The inclined wall 61 of the air deflection device 55 extending from the front face 3 of the oven 1

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even beyond the outer glass 21 of the door 4 it allows to guide the air flow F avoiding the hydraulic disturbances. The air flow F gma along the entire inclined wall 61 without obstacles that can be caused by openings or splice planes of elements constituting the door 4 can 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 leading to at least the front face 3 of the oven 1.

Thus, the air flow F that flows into the front face 3 of the oven 1 from said at least one ventilation channel 12 travels without disturbances that may be associated with an element constituting the door 4 such as the handle 30 and more particularly the supports 33 of the handle 30 that rest on the outer surface 31 of the outer door glass 21.

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 handle 30 of the door 4.

Thus, the flow of air F from said at least one ventilation channel 12 having at least one opening 14 disposed on the front face 3 of the oven 1 is oriented in a predetermined direction to the bottom of the handle 30, so that a loop formation of the air is avoided by looping the handle 30. The air flow F cannot move circularly around the handle 30 and cause disturbances at the level of said at least one opening 14 in the front face 3 of the oven 1 of said at least one ventilation channel 12.

In addition, the arrangement of the lower part of the air deflection device 55 substantially at an identical height to the lower part of the handle 30 of the door 4 allows to improve the aesthetics of the cooking oven 1. The lower part of the air deflection device 55 is not visible by 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 guiding the air flow F for a more important distance and preventing the air flow F have a tendency to rise again. In this way, maintenance of the inclination p of the air flow F. is guaranteed.

Preferably, the separation between the inclined wall 61 of the air deflection device 55 and a plane A tangent to a rear wall 62 of a handle 30 of the door 4 and parallel to said inclined wall is greater than or equal to the height H of at at least one outlet opening 14 of said at least one ventilation channel 12 leading to at least the front face 3 of said oven 1.

Thus, the handle 30 of the door 4 cannot create disturbances in the flow of the air stream F after said at least one outlet opening 14 of said at least one ventilation channel 12 leading to at least the front face 3 from the oven 1.

The handle 30 is arranged so that a section throttle is not created that has the effect of creating turbulence or even accelerating the air flow F.

The air outlet through said at least one outlet opening 14 of said at least one ventilation channel 12 leading to at least the front face 3 of the oven 1 avoids any disturbance that has the effect of reducing the amount of air returned by said at least one ventilation channel 12.

In this way, the fan 11 of the ventilation device 10 does not experience loss of loads that have the effect of decreasing its air flow.

The air flow F is completely evacuated towards the outside of the oven 1 without creating a loop formation towards the inside of said at least one ventilation channel 12.

In practice, the air deflection device 55 is disposed below said at least one ventilation channel 12 which ends at least on the front face 3 of said oven 1.

In this way, the air flow F is channeled between the handle 30 of the door 4 and the air deflection device 55.

The air deflection device 55 allows the rear wall 62 of the handle 30 of the door 4 to be cooled to prevent the user from burning during the manipulation of the oven door 4.

In addition, the air deflection device 55 of the door 4 makes it possible to prevent the formation of a loop 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 lower part of the door 4 is fresh and not reheated by the operation of the cooking oven 1. Accordingly, the cooling of the cooking oven 1 and in particular of the structure of the structure is improved.

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components and door 4.

The air deflection device 55 orients the air flow F in an inclined direction and separating it from the outer glass 21 of the door 4.

The arrangement of the handle 30 with respect to the air deflection device 55 is a parameter to be taken into account to avoid the hydraulic disturbances at the outlet of said at least one ventilation channel 12 which flows into the front face 3 of the cooking oven 1 .

The arrangement of the handle 30 is carried out according to the shape of the rear wall 62 thereof and the inclination p of the inclined wall 61 of the air deflection device 55.

The handle 30 is arranged according to two values, a first height and a second separation between said handle 30 and the nozzle-shaped element 63 of the air deflection device 55.

The height arrangement of the handle 30 can be made by the distance T between the upper point of the inclined wall 61 of the air deflection device 55 and the lower point of the lower part of the rear wall 62 of the handle 30, as illustrated in figure 8.

The handle 30 is illustrated in Figures 1 to 8 with different shapes to show the implications of the rear wall 62 of said handle 30 as a function of the inclination p of the inclined wall 61 of the air deflection device 55.

In an embodiment of the invention, the air deflection device 55 may be constituted by the cross member 46 and an air deflector 60.

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

The air baffle 60 determines an orientation of the air flow F at the outlet of said at least one ventilation channel 12 to prevent the loop formation of the air passing through the ventilation device 10 from re-entering the lower part of the door 4 through at least one entrance opening 58.

The inclination of the air flow F is guaranteed by the crossbar 46 which comprises an inclined wall 61.

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

The air flow F also allows the rear wall 62 of the handle 30 of the door 4 to cool as it passes between said rear wall 62 of the handle 30 and the top of said door 4.

The inclination of the air flow F is defined so that all air disturbances are avoided by encountering obstacles in the passage of said air flow F. The handle 30 is arranged and adapted so as to avoid all disturbances of the air flow F at least one ventilation channel 12 leaving the front face of the cooking oven 1 comes out of said.

The inclined walls 61 and 74 respectively of the cross-member 46 and the air deflector 60 form a constant-height air channel to avoid air disturbances that have the effect of decreasing the cooling of the upper part of the door and decreasing the performance of the ventilation device 10.

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

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

This air deflection zone 72 may, at least in part, start from a blowing zone 73 of said at least one ventilation channel 12.

Said air deflection zone 72 can also be continued beyond the external surface 31 of the outer glass 21 of the door 4. The air deflection zone 72 can be terminated by a nozzle-shaped element 63 in the continuity of the inclined wall 61 of the crossbar 46.

This nozzle-shaped element 63 makes it possible to avoid the loop formation of the air flow F in the door 4

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releasing said air flow F from the outer surface 31 of the outer glass 21. The air flow F moves away from the door 4 with the aid of the air deflection zone 72 formed by the crossbar 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 said at least one ventilation channel 12. The shape of said air deflector 60 is particularly adapted to avoid the hydraulic disturbances of the air flow F. The inclined wall 74 of the deflector 60 makes it possible to accompany the change of direction of the air flow F. The shape of the air deflector 60 is adapted to avoid a sharp change in the direction of the air flow F and limiting the losses of load associated with the air deflection zone 72 that forms a cranked part.

Now, with reference to Figures 1 to 8, a cooling device of a cooking oven door, and in particular of a non-ventilation zone in a part of the door, is described.

A cooking oven door 4 comprises at least one inner glass 25 and one outer glass 21. Said inner and outer 25 crystals 21 are mounted on a support means, such as a door frame 23.

The door 4 comprises a traverse 46 to form an air channel 65 between said outer glass 21 and said traverse 46. Said traverse 46 is arranged supported by a wall 38 of the door frame 23.

At least one opening 68 is disposed between at least one upper wall 66 of the outer glass 21 and a wall of the traverse 46 which allows the circulation of an air flow G.

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

Thus, a flow of fresh air G is directed towards a depression area 67 by aspiration 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 proximal area to handle 30.

The cost of realization of the cooling device of the door 4 is minimized by integrating it into a crossbar 46 that allows the assembly of the door 4.

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

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

The traverse 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 allows the upper part of the door 4 to cool and in particular the upper part of the outer glass 21. This air channel 65 allows the area of the outer glass 21 to cool in the vicinity of the opening handle 30 and door closure 4.

This air channel 65 that extends vertically along the outer surface 31 of the outer glass 25 makes it possible to avoid a loop formation of the air leaving at least one ventilation channel 12 which flows through at least one opening 14 arranged in the front face 3 of the oven 1.

The traverse 46 comprises a means 63 for separating an air flow F from the door 4 to prevent the formation of a loop of said air flow F leaving said furnace 1.

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

Thus, the flow of air F leaving said furnace 1 through at least one ventilation channel 12 moves away from the door 4 and in particular from the air inlet openings. The air flow F moves away from the door 4 so as not to create a supplementary heat input. The air flow F moves away according to an inclined direction so that an air flow is avoided 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 traverse 46 to prevent a hot air loop formation leaving said at least one ventilation channel 12 through said fresh air inlet openings of the ventilation device 10 of the oven 1.

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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 nozzle-shaped element 63 of the air deflection device 55 and the exterior glass 21 of the door 4.

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

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

The flow of fresh air G is aspirated by the flow of air P by means of a depression made between a ventilation channel of the door that allows a stream of air from the bottom up in said door 4 and the outside of said door 4.

The air flow G allows the upper part of the outer glass 21 of the door 4 and the crossbar 46 to be cooled by the flow of fresh air inside the air duct 65 from the outside of the oven 1.

Preferably, the air channel 65 extends in the width K of said at least one wall 63 that extends beyond the outer glass 21 of the door 4.

Thus, the outer glass 21 and the crossbar 46 are cooled along their entire length by the air channel 65. The air channel 65 of the fresh air flow G allows the upper part of the door 4 to be cooled evenly and in particular the non-ventilation zone 67 inside the door 4.

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

The thickness e of the air channel 65 is sized according to the cooling required for the upper part of the door 4. The thickness e of the air channel 65 is the means that ensures the cooling of the door 4 at the top and in particular of the non-ventilation zone 67 of the latter.

The air channel 65 allows fresh air to be drawn from the outside by means of a depression generated inside the door 4. This depression is generated by the ventilation device 10 creating an aspiration in the door 4 from the bottom up.

The pressure at the level of the upper part of the nozzle-shaped element 63 of an air deflection device 55 is greater than the pressure below the nozzle-shaped element 63 allowing also to create a depression and thus favor an arrival of fresh air in the direction of the air channel 65.

The air channel 65 has an angled shape between the outer glass 21 and the crossbar 46.

The depression that is exerted inside a ventilation duct 69 disposed between the inner glass 25 and the outer glass 21 of the door 4 allows the flow of a stream of fresh air G along the outer glass 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 into the interior thereof.

The outside air is aspirated by depression in the air channel 65 to be introduced into a space 69 disposed between the inner glass 25 and the outer glass 21 of said door 4.

The crossbar 46 is fixed to a fixing element 24 assembled with the outer glass 21, said fixing element 24 comprising at least one opening 70 to allow the flow of an air stream G from the air channel 65 disposed between the outer glass 21 and said traverse 46.

Said at least one opening 70 of the fixing element 24 allows an air flow to be made minimizing the pressure drop between the air channel 65 and a space 69 disposed between the inner glass 25 and the outer glass 21 of the door 4.

In this way, the air flow does not obstruct the flow of fresh air G from the air channel 65.

The crossbar 46 also comprises at least one opening 71 located in front of said at least one opening 70 of said fixing element 24. In this way, the air flow of the fresh air flow G is made with a

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mm of loss of loads.

The separation between the upper wall 66 of the outer glass 21 and the traverse 46 to arrange the air channel 65 of the fresh air flow G is carried out by means of oval moldings located in a lower wall of said traverse 46.

The crossbar 46 is arranged supported by an upper wall 38 of the door frame 23 and below at least one ventilation channel 12, said at least one ventilation channel 12 leading to at least the front face 3 of said oven 1.

Thus, the cooling of the door 4 is optimized for a ventilation of the door 4 comprising an air flow P flowing at least in a part of the door 4 from the bottom up.

The arrangement of the cross-member 46 with respect to the door frame 23 already said at least one ventilation channel 12 makes it possible to guarantee the passage of an effective fresh air flow G so that the non-ventilation zone of the door 4 is cooled. Thus, the surface of the outer glass 21 facing the handle 30 is effectively cooled to avoid any risk of user burn.

Preferably, the ventilation duct 69 disposed between the inner glass 25 and the outer glass 21 is at least in fluid communication with the air channel 65 of the fresh air flow G.

The air flow P flows at least along the outer glass 25 of the door 4 to allow the external surface 31 of the outer glass 21 of the door 4 to be cooled effectively, and to ensure sufficient aspiration of the air flow cool G.

The air flows P and G are mixed inside the door 4 to then be aspirated by the ventilation device 10 through a ventilation duct 16, in particular at the top of said door 4. The ventilation device 10 creates a depression in the ventilation channel 16 to aspirate the air from the ventilation channel 65 and the channel disposed between the outer glass 21 and the inner glass 25. This mixture of air from the air flows P and G allows the upper part to cool of the door 4 and provide fresh air in the ventilation device 10, to cool the set of the elements that constitute the oven 1.

Now, with reference to FIGS. 1 to 9, a throttling means of a passage section of an air flow F at one end of a blowing zone of said at least one ventilation channel of a cooking oven according to FIG. the invention.

The baking oven 1 comprises a base structure provided with a cooking enclosure 2 having an opening 26 in the front face 3 sealed by a door 4.

Said cooking enclosure 2 is surrounded by a housing 5.

Said base structure also comprises a ventilation device 10 provided with at least one ventilation channel 12 disposed between the cooking enclosure 2 and the housing 5.

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

The door 4 is provided with at least one inner glass 25 facing the opening 26 of the cooking enclosure 2 and an outer glass 21 arranged towards the outside of said oven 1.

The baking oven 1 comprises at least one throttling 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 throttling means 75 may be an element identical to the air deflector 60 defined above.

Said at least one throttling 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 may be arranged at least partly inside said at least a ventilation channel 12, and allows modifying said base structure of said furnace 1 of a first hydraulic device to at least a second hydraulic device.

Thus, said at least one throttling means 75 of a passage section of an air flow F allows the passage of a furnace 1 from a first hydraulic device to at least a second hydraulic device to adapt to the different decorations of the different models of baking ovens, without modifying the base structure of said oven 1.

Said cooking oven 1 comprises a unique base structure for the set of models that allows

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adapt to the different decorations thanks to said at least one throttling means 75 of an air flow passage section.

The cost of obtaining the different models of baking ovens is optimized with the only throttling means 75 of a section of passage of an air flow F.

Said at least one throttling means 75 of a passage section of an air flow F is assembled or not throughout the production of the cooking ovens to customize the decoration of the different models depending on the brands and the marketing markets

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

Said at least one throttling means 75 of a passage section of an air flow F is a part assembled at least in part in a blowing zone 73 of at least one ventilation channel 12, and which cannot be operated along of the use of the cooking oven 1. In this way, the reliability of the cooking oven 1 is increased and an adaptation of the hydraulic device is not required depending on the mode of use of the cooking oven 1.

Said at least one throttling means 75 of a passage section of an air flow F allows to obtain cooling performances of the cooking oven 1, without the need to modify the ventilation device 10 throughout the use of said oven 1 .

On the other hand, said at least one throttling means 75 of a passage section of an air flow F of a blowing zone 73 of a ventilation channel 12 does not need driven parts for the passage of a first hydraulic device to at least a second hydraulic device of a furnace 1. In this way, the costs of obtaining the different models of cooking ovens provided with a throttling means 75 of this type of a section of passage of an air flow are minimized.

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

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

In this way, the base structure of the cooking oven 1 allows to obtain a first simple and inexpensive air device. The cooling of the elements that constitute the cooking oven 1 does not need a particular air circulation.

In addition, the passage of a first hydraulic device to at least a second hydraulic device of a cooking 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 of at least one channel of ventilation 12, in particular obtaining a variable width of said at least one air outlet opening 14.

In an 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 located between the bottom of a control panel (not shown) and the top of a door 4 that seals an opening 26 of a cooking enclosure 2.

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

The decrease in height of said at least one air outlet opening 14 can be practiced with a flow of air F leaving substantially horizontally from the front face 3 of the oven 1, to prevent the vision of said at least one channel of 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 to orient the air flow F according to an inclined direction.

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

Said at least one throttling 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

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the air flow F in a predetermined direction.

The inclined wall 74 of said at least one throttle means 75 of the passage section of an air flow F allows to circumvent decoration elements of the door 4, so that any hydraulic disturbance at the exit of said at least one is avoided. ventilation channel 12.

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

In practice, said at least one throttling 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 throttling element 75 in the width N of said section of passage of an air flow F.

Thus, the passage of a first hydraulic device to at least a second hydraulic device is carried out in a simple manner during the assembly of the cooking oven 1 by the manufacturer.

Said at least one throttle 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 by the user.

Preferably, said at least one throttling 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 throttling element 75 in the width N of said passage section of an air flow F on both sides of an average plane M of said at least one ventilation channel.

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

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

This feature can be implemented in the case of a radial fan 11 or even with a channeled blow zone and whose air flow is returned uniformly.

According to another embodiment of the invention, the throttling elements 75 located on both sides of the middle plane M of said at least one ventilation channel 12 can be asymmetrically in the case of a radial axial fan 11 where the area of blowing requires a ventilation channel 12 in a specific way, in particular helical.

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

Thus, the passage of a first hydraulic device to at least a second hydraulic device is performed between a first simple device and at least a second more complex hydraulic device.

In the case of the first hydraulic device where the passage of the air flow F is substantially horizontal, the height of the passage of the air flow F can be lowered so that the aesthetics of the cooking oven 1 is favored.

In the case of at least a second hydraulic device, where the passage of the air flow F is oriented in a predetermined inclined direction, the air flow F is directed so that the user receiving a hot air flow is not disturbed , or even prevents it from coming into contact with an obstacle that decreases the performance of the ventilation device 10.

A fixing element 76 is arranged according to a middle plane M of said at least one ventilation channel 12, to maintain a separation between a lower wall 77 and an upper wall 78 of said at least one ventilation channel 12.

Thus, said at least one throttling 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 allows to obtain a simple assembly and at a lower cost while ensuring a compliant assembly of the cooking oven 1.

Said fixing element 76 allows avoiding the folding of a wall 77 or 78 of said at least one ventilation channel 12 and decreasing the height of the air passage. In this way, the height between the upper wall is guaranteed

78 and the bottom wall 77 of said at least one ventilation channel 12.

In an embodiment of the invention, the passage of the air flow F of said at least one second hydraulic device is oriented down and below a handle 30 of the door 4.

5

Thus, this hydraulic device makes it possible to prevent the vision of said at least one ventilation channel 12 by the user and to orient the air flow F according to a direction that does not disturb the user.

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

10

Obviously, numerous modifications can be made to the exemplary embodiment described above without departing from the scope of the invention.

Claims (11)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 1. Cooking oven comprising a cooking enclosure (2) having an opening (26) on the front face (3) sealed by a door (4), said cooking enclosure (2) being surrounded by a housing (5) ), said cooking oven (1) also comprising a ventilation device (10) provided with at least one ventilation channel (12) disposed between the cooking chamber (2) and the housing (5), said at least one ventilation channel (12) at least on the front face (3) of said oven (1), the door (4) being provided with at least one inner glass (25) facing the opening (26) of the cooking enclosure ( 2) and an outer glass (21) disposed towards the outside of said oven (1), said door (4) also comprising a handle (30), a height (H) of the passage section of an air flow (F ) is constant at least in a part of a blowing zone (73) of said at least one ventilation channel (12), the air deflection zone (72) is at least formed outside the h cooking oven (1) and from the front face (3) of said oven (1) characterized in that the height (H) of the passage section of an air flow (F) is also constant in an air deflection zone (72). 2. Cooking oven according to claim 1, characterized in that the air deflection zone (72) is formed by at least one crossbar (46) disposed below said at least one ventilation channel (12) and at least one air baffle (75). 3. Cooking oven according to claim 1 or 2, characterized in that said at least one air deflector (75) comprises an inclined wall (74) and parallel to an inclined wall (61) of the traverse (46) to orient the flow of air (F) to the outside of the oven (1) and away from the outer glass (21). 4. Cooking oven according to any one of claims 1 to 3, characterized in that the air flow (F) is directed below a handle (30) of the door (4) by the air deflection zone (72) arranged at one end of a blowing zone (73) of said at least one ventilation channel (12). 5. Cooking oven according to any of claims 1 to 4, characterized in that the inclination (p) of the inclined wall (74) of said at least one air deflector (75) is comprised in a range that extends between 20 ° and 50 °, and preferably of the order of 40 °. 6. Cooking oven according to any one of claims 1 to 5, characterized in that the height (H) of the air flow passage section (F) extends in a range between 10 mm and 25 mm, and preferably of the order 20 mm 7. Cooking oven according to any of claims 3 to 6, characterized in that the width (D) of the inclined wall (74) of said at least one air deflector (75) is substantially equal to the width (L) of the inclined wall (61) of the crossbar (46). 8. Cooking oven according to any one of claims 1 to 7, characterized in that the width (N) of the air flow passage section (F) of said at least a part of a blowing zone (73) of said at At least one ventilation channel (12) is less than or equal to the width (D) of the air flow passage section (F) of the air deflection zone (72). 9. Cooking oven according to any of claims 1 to 8, characterized in that said at least a part of a blowing zone (73) of said at least one ventilation channel (12) and the air deflection zone (72) They are contiguous. 10. Cooking oven according to any one of claims 1 to 9, characterized in that said at least one air deflector (75) is arranged at least partly inside said at least one ventilation channel (12). 11. Cooking oven according to any one of claims 1 to 7 and 9 to 10, characterized in that the passage section of an air flow (F) is constant at least in a part of a blowing zone (73) of said at minus a ventilation channel (12) and in an air deflection zone (72).