WO2007080037A1 - Cooking appliance door and associated control module - Google Patents

Abstract

The invention relates to a cooking appliance door, in particular an oven door, comprising at least one control element receiving area for receiving at least one control element, which is thermally separated from an area of the cooking appliance door, which is arranged directly opposite the cooking chamber.

Description

Cooking appliance door and associated operating module

The invention relates to a cooking appliance door and a cooking appliance with the cooking appliance door.

From DE 297 22 024 Ul a switchable glass door for home ^¬ holding appliances is known in which a 'glass keyboard' is integrated on or in the glass door. The control panel is the transparent glass door itself. The glass keyboard can include an LCD display or a monitor. The control panel can be omitted. The necessary for operating unit Auswerteelektro ^{¬ technology} is mounted in a separate, temperature-reduced, insulated area of the oven.

From DE 299 19 792 Ul pressure switching elements are also be ^¬ known, the user interface are formed of a glass.

From DE 30 37 277 Al a microwave oven is known in which manually operated, electrically controllable Betriebssein ^¬ directions are attached to the door. Disclosed are behind a front surface of a door located Tastenfel ^¬ that extend advantageously according to this device until the furnace chamber opening.

From DE 38 29 913 Al a microwave oven is known in which switching, setting and / or display means are installed in the cooking chamber door, behind a front wall.

From WO 97/26486 a oven door with integrated in a handle controls is known. From EP 1120606 A2 a cooking appliance door is known having distributed in ih ^¬ rer door control switch and display fields, the complete surface with the front side.

In the above-mentioned publications built controls are subjected to a heat development in and on the door in the door, as it occurs essential at high temperatures (eg. As in the pyrolysis), in particular for ovens and spe there ^¬. In Ovens temperature may exceed approximately at or in the door 150 ⁰ C, which is far higher than the übli ^¬ che limit temperature for electronic controls and components of about 85 ⁰ C. Therefore, most of the technical solutions described above in the practice also limited to microwave ovens, where lower temperatures occur.

It is the object of the invention to provide a possibility for ver ^¬ improved protection of controls a cooking appliance door from heat or heat.

The object is achieved by a cooking appliance door according to claim 1 and a cooking appliance according to claim 11. Advantageous Ausgestal ^¬ tions are the dependent claims individually or in combination removed.

The cooking appliance door, in particular for a baking oven, has at least one operating element receiving area for receiving at least one operating element. A widget can jegli ^¬ che include the operation of the device intended component such. B. a switching element (z. B. Gag, keys, etc.) and / or a display element (eg. B. a, Leuchtdio ^¬ the LCD display, lamps, etc.) and / or an associated Electrical and Electronics and so on. The control element receiving area is at least partially thermally separated or disconnected from an area of the cooking appliance door, which is to be arranged directly opposite a cooking chamber of the cooking appliance or a corresponding opening. This firstly a direct heat transfer from the hot cooking space is avoided and / or secondly, a heat transfer from the hot door area, which is usually generated by hot air in a door interior, prevented. The thermal decoupling causes the Be ^¬ dienelementaufnahmebereich is cooler than the cooking chamber directly opposite to be arranged area.

These measures are particularly advantageous when the operating element is arranged ^¬ receiving area above the cooking chamber to the opposite to be arranged area. The Bedienele ^¬ management recording area can also be provided below the the cooking chamber directly oppositely disposed area but.

The thermal decoupling may Schehen advantageously ^so-¬ that the operating element receiving area of the region lying opposite to by a partition wall, for the cooking compartment. As a sheet, a diaphragm, a rib, an air guide, etc., and in particular a heat-insulating layer is separated.

The thermal decoupling can advantageously or additionally be done so that at least one Türentlüftungs ^¬ opening for removal of hot air from the cooking chamber directly opposite to lying area or door interior in the vicinity of the control element receiving area is present. As a result, reaching the operating element receiving area hot air is not held there, but derived from the door interior. The control element receiving area can additionally or separately be cooled, for. B. in that cooling air or ambient air is guided around it. This causes a further thermal decoupling ^¬ .

An even greater cooling and decoupling of the control ^¬ receiving area can be achieved by the Be ^¬ dienelementaufnahmebereich is ventilated itself, z. B. by its own fan or by a guided through the control element receiving area air duct, which sucks, for example, air from the outside through the control element receiving area to a cooling fan in the furnace housing.

It is also advantageous if at least two of the operating elements are accommodated in an operating module, wherein the operating module can be ^inserted at least partially into a recess in the operating element ^{receiving area} . An operating module has the advantage over distributed, individual operating elements that it requires less and simpler installation steps and is easier to replace. Opposite behind the door front arranged elements is an advantage of a possible lower mounting height of the door itself, as the case may protrude ^¬ SEN to Au; In addition, a greater variety of switching elements (toggle, toggle switch) is possible, which can also be better operated. Opposite on the door applied control units, there is the advantage of a more reliable attachment, for. As by clamping on the door, a less prominent construction and easier connection to other device components, eg. B. a power supply.

The control module can conveniently be used in addition to switching elements (switches, toggles, buttons, slides, etc.) and display elements. (LED displays, alphanumeric displays such as LCD full pixel fields, etc.) also have associated electrical and / or electronics and suitable communication means for data transmission with other components, eg. As cables, cable connections, evaluation and / or control electronics, wireless transmission equipment or the like.

It is particularly advantageous if the operating module has a part which can be inserted into the recess and a part which protrudes outwards from the latter, since the part which projects to the outside only experiences a lower heat transfer; this part can also be spaced from the door or its front.

It is advantageous if the usable part of the Bedienmo ^¬ duls particular electrical and / or electronic compo ^¬ nents receives, while the outwardly projecting part in particular comprises the controls. By such an arrangement, it is possible ^¬ len a large panel bereitzustel, the (up, down, left and / or right in a plan view of the door) via the recess out can ^¬ projecting sideways, while the recess itself thermally insulating Güns ^¬ tig can be kept small. This is especially true for doors that cover one side of the cooking appliance without the use of a Be ^¬ dienblende. The optimization of the thermal insulation is particularly favorable for doors with fully glazed surface, since glass provides a comparatively low thermal insulation.

To optimize the function of the operating module it is favorable for the majority of the controls, in particular, all operating elements are accommodated in a single operating module un ^¬. Then it only takes a single recess in the door and thus only one insertion and fixing transaction. Even a repair is cheaper by replacing the entire control module.

It is for effective ventilation, in particular with separation of the areas for cooling air inlet and exhaust outlet ^¬ advantageous if the ventilated control element receiving area is located away from the exhaust outlet, for example, on ei ^¬ ner opposite side of the cooking appliance, eg. B. so that the Bedienmodulaufnahmebereich above the cooking chamber and the exhaust outlet is arranged below the cooking chamber, or ^{vice versa ¬} . It is also advantageous if at least some air inlet openings are arranged laterally on the door.

It may also be favorable if the door has a full-surface front side, in particular a solid glass front, in which the saving is made. Glass front especially at a full ^¬ it is favorable when the door handle is integrated behind the all-glass front in the cooking appliance door sideways.

The object is also achieved by a cooking appliance, which has at least a door as described above with a used geeig ^¬ Neten operating module described above.

The object is also achieved by a cooking appliance with a top ^¬ be signed cooking appliance door. Particularly advantageous are the measures described, if the cooking appliance has no separate control panel.

In the following figures, the invention will be described by schematic embodiments. These Ausführungsbei ^¬ games do not limit the invention, which is determined by the scope of the claims. Identical parts are characterized by ^¬ common by the same reference numerals. Figure 1 shows a sketch in an oblique view from the outside a built ^¬ oven with operating module;

FIG. 2 shows schematically as a sectional side view another oven with operating module;

Figure 3 shows the front of the control module of Figures 1 and 2 in an oblique view.

Figure 4 shows the rear side of the control module of Figures 1 to 3 in an oblique view.

Figure 5 shows the control module of Figures 1 to 4 as a sectional view in side view.

Figure 6 shows the front of a control elements in oblique ^¬ view;

FIG. 7 is a sectional side view of a further oven with operating module;

Figure 8 shows schematically in plan view of the front several ways to customize the oven door.

In Fig. 1, a baking oven door 1 of a baking oven is shown, in which a control module 2 is inserted. The oven door 1 be ^¬ covers the front side of the oven completely, so that the ser ^¬ no separate control panel must have. The oven ^¬ door 1 has on its outer side or front side held only by a narrow metal frame 3 full-surface outer glass pane 4. For thermal insulation, the oven door 1 further comprises an inner glass pane 5, whereby between the Slices 4, 5 a door interior is formed. There may be more glass panes in parallel. In this door interior, a panel 6 is used, which serves as a screen and air flow line, among other things. Through a cutout 7 in the aperture 6, a viewing window is defi ^¬ ned. In the aperture 6 ^{Ventiluftschlit ¬} ze 8 are introduced to the fresh air supply in the lower part. The upper breather ^¬ tion slots are not shown here. The oven door 1 is laterally open and closed by the handle 9.

Fig. 2 shows a baking oven 10 with a same to Fig. 1 and the same positioned control module 2 in vertical section through the control module 2. The cooking chamber 11 of the furnace 10 is bounded by a muffle 12 open to the front, covered by egg ^¬ ner insulating layer 13 is. Between the insulating ^¬ layer 13 and an outer oven panel 14 is a flow space 15, can flow through the air, preferably substantially moved by a fan 16 in the form of a cross-flow fan. In the cooling air circuit ^¬ inco is subjected to the oven door 1, in particular in that in this embodiment, the oven door 1 can be vented through lateral openings with fresh air, as schematically indicated by the arrows Pl. The thus space in the ventilated door inner ^¬ 17 incoming fresh air is heated and flows by convection and possibly by means of suction by the fan 16 upwardly as shown by the arrows P2 indicated. In the upper part of the cooking appliance door 1 are door ventilation slots 18, through which the then warmed up air leaves the cooking appliance door 1. Sucked in by the fan 16, the air then flows further around the cooking chamber 11 in the flow space 15 (as indicated by the arrows P3), until it passes through the oven 10 through lower oven ventilation openings 19. leaves. The associated heating elements, etc. are not shown for clarity.

In this embodiment, located in the cooking appliance ^¬ or oven door 1 above the cooking chamber 11 and the Türentlüf ^¬ processing openings 18 a Bedienmodulaufnahmebereich 20 in which a recess in a rear part of the control module 2 is inserted. The operating module receiving area 20 of the cooking chamber 11 opposite the region 21 of the cooking device 1 separated by a bar 22 and thereby thermally ^¬ least partially separated or decoupled. As a result, the operating module receiving region 20 is comparatively cooler than the region 21 arranged opposite the cooking chamber 11.

The operating module receiving area 20 is further kept cooler and thermally separated from the door area 21 or door interior 17 opposite the cooking space 11 by discharging the warm air through the door ventilation opening (s) 18, as indicated by the arrows P2, from the area on the operating module receiving area 20 ,

In addition, for further thermal separation or decoupling and thus relative cooling of the Bedienmodulaufnahme- area 20 at the back in the top of Gargerä ^¬ tetür 1 at least one vent opening 23 is present, which leads to the flow space 15. Through the opening through these ventilation ^¬ 23 flowing into the flow chamber 15 ambient air causes the operating module receiving area 20 and therefore the operating module 2 are further cooled from behind and at the same ^¬ tig the air temperature in the flow chamber 15 drops.

The arrangement shown here also has the advantage that the air inlet openings in particular laterally in the door 1 and above the cooking appliance door 1 are spatially separated from the Ofenauslassöffnungen 19 so that, firstly, the fresh air is sufficiently cool and secondly no escape from a Wrasenöff- 24 from the cooking chamber 11 leaving vapors can enter the ventilation circuit, which is otherwise difficult to clean Pollution of the door interior 17 could lead.

The operating module 2 has an inserted into an open-top recess of the front glass front part 25 and an outwardly or forward projecting part 26, which also goes laterally downward beyond the recess. On the externally protruding part 26 controls not shown here are present.

FIG. 3 shows the operating module 2 from FIGS. 1 and 2 more precisely from an angled front. The control module 2 comprises in a common ^¬ housing a display unit in the form of a pixelgesteu ^¬ ended LCD display 27, on the side of each three touch-sensitive buttons 28 are mounted. Two rotary knobs 29 are located below the LCD display 27 as further switches. The knobs 29 are located laterally below the region 25 to be inserted into the recess on the externally protruding part 26.

FIG. 4 shows the operating module 2 on FIGS. 1 to 3 obliquely from behind. The part 25 to be inserted in the recess here shows electrical connections 30.

FIG. 5 shows the operating module 2 of FIGS. 1 to 4 at the side in a sectional view along the line II from FIG. 3. It can be seen that the protruding region 26, as indicated by the arrow pointing to the right, as well as in a Ausspa- tion insertable part 25, as indicated by the arrow pointing to the left. The protruding part 26 includes the loading ^¬ control elements such as the knob 29, the protective disc behind a plastic ^¬ 31 mounted LCD display 27 and the berüh ^¬ approximately sensitive buttons (not shown), all of which are housed in a common housing 33rd The insertable into the recess portion 25 includes electronics 32 for evaluating the signals of the controls 29; There is also present ^¬ a controlled by the electronics 32 speaker 34, for example, to generate clicking sounds when turning the knob 29th

Fig. 6 shows a further adjustment module 35 with a display ^¬ unit 27 and touch-sensitive buttons 28 which a- about now separate knob 35 has. The lower edge of this operating module 35 is a protruding part 26 and projects laterally downwards beyond the part 25 to be inserted, so that here too display 27 and buttons 28 are arranged in front of the front of a door.

Fig. 7 shows a further exemplary embodiment of a baking oven ^¬ 37, wherein now the operating module 2 is actively cooled in the door 38. Door, in contrast to in Fig. 2 shown in which the present in the top of the door 1 Belüftungsöff ^¬ voltage 23 is disconnected from the operating module receiving area 20 through the inner glass pane 5, this is now sealed 39 through a like ^¬ processing element. However, is now a Belüf ^¬ tung opening 40 for operating module receiving area 20 is present, and an associated vent. As indicated by the Pfei ^¬ le P4, cooling air is directed through the vent opening 40 on the part inserted into the recess 25 of the control module 2, z. B. sucked by the fan 16, and then through the vent in the flow space 15th continued. This embodiment cools the operating module 2 more effectively compared to the embodiment shown in FIG. 2, but is also more complex in terms of manufacturing technology.

Fig. 8 shows a sketch in plan view from the front a back ^¬ oven door 41 with five selected examples of the arrangement of recesses 42 to 46, which are marked by the dot-dash lines shown areas Al to A5. The Be ^¬ rich Al to A5 may be present in a specific embodiment individually, multiple or in combination, and indeed at any suitable locations of a baking oven door. The following is the location of thermal demarcating partitions, z. B. strips, ribs, Isolierwänden etc. in the door interior each shown dotted, while the outer boundary of the control module on the outside of the door 41 is shown in dashed lines.

In the region Al, the recess 42 is open is inserted into the front windscreen 4 upward, so that the module can be at ^¬ play inserted from above. It can also survive upwards. Darge the associated dots ^¬ presented thermal limitation in the door interior encloses the recess except for the upper portion and defined ei ^¬ NEN with. The externally protruding part of the operating module protrudes here on the left and right as well as down over the thermal boundary or the Bedienmodulaufnahmebereich out, if desired, also upwards.

If a better thermal shielding is desired, the operating module receiving area can be chosen so large that the protruding part of the operating module, for example in the lateral direction (to the left, right, up and / or below) protrudes beyond the recess, but not beyond the operating module receiving area.

In the area A3, the protruding part of the operating module protrudes only downwards over the operating module receiving area, in the area A3 only laterally. Area A4 shows a functionally similar to area Al construction, but now left side in the door 41st

Area A5 differs from areas A1 to A4 in that the recess 46 is completely enclosed by the outer disk 47; the protruding part of the operating module protrudes laterally in all directions beyond the operating module receiving area.

Area A6 corresponds in structure to the areas Al and A4, but is arranged on the underside of the door 41.

Is also shown, that a plurality of recesses (here: Preparation ^¬ che Al to A3) are connected by a common thermal boundary or separation from the hot area of the door 41 detached.

The invention is not limited to the above embodiments. Although use in hot / cold doors is particularly advantageous, however, the invention can be applied to all cooking appliances equipped with a door.

The door with the other walls ausges ^¬ example, can be tattet, for example, metal, plastic, etc. These walls do not have to be transparent. For transparent panes, materials other than glass may be used. In addition, the ventilation does not need to have the shape shown in the Ausführungsbei ^¬ games; for example, the air can be routed around the cooking chamber the other way round, ventilation openings can be positioned differently, and so on. It can also be completely dispensed with aeration; then the door can do without a hollow interior,

Furthermore, a plurality of modules can be introduced into a recess, and it can be alternatively or additionally used a plurality of recesses, each with a control module.

LIST OF REFERENCE NUMBERS

1 oven door

2 operating module

3 metal frames

4 outer glass pane

5 inner glass pane

6 aperture

7 section

8 ventilation slots

9 handle

10 oven

11 cooking space

12 muffles

13 insulating layer

14 oven panel

15 flow space

16 fans

17 door interior

18 door ventilation slots

19 oven vents

20 operating module recording area

21 the cooking chamber (11) opposite area

22 bar

23 ventilation opening

24 vapor opening

25 usable in a recess part of the operating module

26 outwardly protruding part of the operating module

27 LCD display

28 touch-sensitive buttons

29 gag

30 electrical connections

31 plastic contactor disk 32 electronics

33 housing

34 speakers

35 operating module

36 gag

37 oven

38 oven door

39 sealing element

40 ventilation opening

41 oven door 41

42 recess

43 recess

44 recess

45 recess

46 recess

47 outer disc

A1-A5 control module areas

P 1 -P 4 Air st rations

Claims

claims That in it at least one Bedienelementaufnahmebe- rich (20) for receiving is 1. cooking appliance door (1), especially oven door, characterized in that at least one control element before ^¬ hands, that of a a cooking chamber (11) directly opposite to be arranged portion (21) of the Cooking appliance door (1) is at least partially thermally separated. 2. cooking appliance door (1) according to claim 1, characterized in that the operating element receiving area (20) above the cooking space (11) is arranged directly opposite to be arranged area (21). 3. cooking appliance door (1) according to claim 1 or 2, characterized in that the control element receiving portion (20) of the cooking chamber (11) directly opposite to be arranged region (21) by a, in particular heat-insulating, partition (22) ge ^¬ separates. 4. cooking appliance door (1) according to one of claims 1 to 4, characterized in that the cooking chamber (11) directly against ^¬ over area to be arranged (21) a ventilated door interior (17). 5. cooking appliance door (1) according to claim 4, characterized in that the ventilated door interior (17) on the Bedienele ^¬ mentaufnahmebereich (20) and adjacent to the control element receiving area (20) at least one Türentlüftungsöff ^¬ tion (18) for the removal of hot air the door interior (17). 6. cooking appliance door (1) according to one of claims 1 to 5, characterized in that the operating element receiving area (20) is coolable. 7. cooking appliance door (1) according to claim 6, characterized in that the operating element receiving area (20) is ventilated. 8. cooking appliance door (1) according to one of the preceding claims, characterized in that at least two of the control ^¬ elements in an operating module (2.35) are added, wherein the operating module (2.35) at least partially into a recess in the operating element receiving area (20 ) can be used. 9. cooking appliance door (1) according to one of the preceding claims, characterized in that the operating module (2.35) ei ^¬ nen insertable into the recess part (25) and one of which outwardly projecting part (26). 10. cooking appliance door (1) according to one of the preceding claims, characterized in that it comprises a full-surface front window, in particular a solid glass front. 11. Cooking appliance (10) with a cooking appliance door (1) according to one of the preceding claims, characterized in that it has no separate control panel.