WO2008138751A1

WO2008138751A1 - Stove top

Info

Publication number: WO2008138751A1
Application number: PCT/EP2008/055279
Authority: WO
Inventors: Franz Grätz; Johann Huber; Holger Jenet; Mario Kojer; Ernst Wurnitsch
Original assignee: BSH Bosch und Siemens Hausgeräte GmbH
Priority date: 2007-05-10
Filing date: 2008-04-29
Publication date: 2008-11-20
Also published as: ES2480541T3; DE102007021939A1; EP2156706B1; EP2156706A1

Abstract

The invention relates to a stove top arrangement having a hot plate (34) which has at least four heating zones (72, 74, 76, 78) of which at least one first heating zone and at least one second heating zone are substantially circular in shape, and having an operating element (15) which is designed as a module which is separate from the hot plate (34). In order to provide flexible usability of the heating zones (72, 74, 76, 78) and comfortable operation, it is suggested that the first and the second heating zones (72, 74) each have a diameter of at least approx. 180 mm.

Description

hob

The invention is based on a hob according to the preamble of claim 1.

It is a hob with a cooking plate having four cooking zones, and known with a control unit, which is designed as a separate module from the cooking plate.

The object of the invention is in particular to provide a generic device with improved properties in terms of a more flexible use of the cooking zones and a comfortable operation.

The object is achieved by the features of claim 1, while advantageous embodiments and modifications of the invention, the subclaims can be taken.

The invention is based on a hob with a cooking plate, which has at least four cooking zones, of which at least a first and at least one second are substantially circular, and with an operating unit, which is designed as a different from the cooking plate Baumodul.

It is proposed that the first and the second cooking zone each have a diameter of at least about 180 mm. This can be achieved in particular a high ease of use. In particular, it is possible to simultaneously heat two cooking utensils, which have a substantially circular bottom with a diameter of at least approximately 180 mm, in the case of a control unit which can be used flexibly and accordingly requires space. The operating unit preferably has an operating element which is provided for setting a heating power for heating a cookware set up on a cooking zone. In particular, when a measure is labeled "approximately", it is meant that the actual measurement deviates by less than ten percent from the specified measurement, advantageously diverges by less than five percent, preferably less than two percent, and more preferably less than half a percent of the given measure deviates circular surface "is intended to mean, in particular, a surface which can be covered with a circle of the same size such that at least seventy percent, in particular at least eighty-five percent and particularly advantageously at least ninety-five percent of the circular surface overlap with the original surface a substantially circular surface "should be understood in particular the diameter of this circle. A "construction module different from the cooking plate" is to be understood in particular as an assembly which is produced separately from the cooking plate prior to assembly of the cooking field and which is attached to the cooking plate during assembly In the assembled state, the operating unit preferably adjoins the cooking plate, In particular, the cooking plate and the operating unit have contours that at least partially complement each other in the assembled state such that a bulge in the contour of the one component The control unit preferably has a control surface which is formed separately from the hotplate .This control surface may comprise touch elements and / or actuating elements, such as control buttons, for example, may be used. be integrated in the control surface. Furthermore, this operating surface can be limited by means of a frame which adjoins the cooking plate in the mounted state of the hob. In addition, the cooking zones and the control surface can lie in a common plane or in different planes. Furthermore, the operating surface may be inclined relative to the cooking plate.

It is also proposed that the first and the second cooking zone each have a smaller distance from the operating unit than a third and a fourth cooking zone. This can be heated in particular a large cookware at a small distance to the person operating and thus made easy access to the cookware. With a "distance" between two objects, the minimum of the lengths of the links connecting the objects between an arbitrary point of the first object and an arbitrary point of the second object should be meant here and in the entire text.

The ease of use can be further increased if the first and / or the second cooking zone have a diameter of at least about 210 mm. In a further embodiment of the invention, it is proposed that the first and / or the second cooking zone have at least a first cooking surface and a second cooking surface, which surrounds the first cooking surface in an annular manner, whereby an increased application flexibility can be achieved. For operating the cooking surfaces at least two heating means are provided, wherein a cooking surface is preferably assigned in each case a heating means. One of the cooking surfaces, in particular the second cooking surface, can optionally be operated in combination with the other cooking surface.

In an advantageous embodiment of the invention, a third cooking zone is elongated under the four cooking zones, which comprises at least one curved part contour, which has a radius of curvature of at least about 85 mm. In this case, in addition to the substantially circular cooking zones adapted to the heating of a frying pan cooking zone can be achieved. In particular, the partial contour is semicircular. By "elongated" is intended in particular to mean that the cooking zone has a rectilinear main extension direction.

According to a preferred embodiment, the third cooking zone has a first cooking surface and at least one second cooking surface, which is substantially circular and has a smaller distance to at least two of the third cooking zone different cooking zones than the first cooking surface. With the described arrangement of the cooking surfaces can be a space-saving arrangement of components, which are below the hotplate and associated with the third cooking zone, can be achieved. For operating the cooking surfaces at least two heating means are provided, wherein a cooking surface is preferably assigned in each case a heating means. One of the cooking surfaces, in particular the first cooking surface, can optionally be operated in combination with the other cooking surface.

It is also proposed that, under the four cooking zones, a further, essentially circular cooking zone has a diameter of at least approximately 145 mm, whereby the ease of use can be further increased.

In an advantageous embodiment of the invention, the hob comprises a cooking unit protection device having at least one housing unit, which has at least one receiving area for receiving at least one electric unit assigned to the operating unit. nikeinheit forms, and at least one fixed to the housing unit shielding unit, which is intended to shield the Umhausungseinheit before at least one of the cooking zones associated heating means. Thus, an advantageous protection of a hob electronics and a cooktop substructure can be achieved with a particularly compact design. In particular, by installing the shielding unit on the housing unit a space can be created, which can be used for the arrangement of the first and the second cooking zone, in particular in the region of the operating unit. The electronics unit has in particular electronic switching elements, which are preferably assigned to the operating unit for manually setting a parameter by an operator and serve to forward setting signals to a control unit for controlling an operation of the heating means. In this context, a "heating means" is to be understood as meaning, in particular, a means provided for heating a cooking utensil placed in a cooking zone, in particular, the heating means may be a radiation body or induction coil The shielding unit serves in particular to shield the housing unit and thus the electronic unit arranged in the receiving area from heat generated by the heating medium Furthermore, the housing unit can be shielded by a shielding unit against a condensate forming in the boiler room The shielding unit and the housing unit can in each case in particular be produced at least partially from plastic and in particular can be produced by a spraying method.

It is further proposed that the housing unit has a housing remover, which forms the receiving area, and the shielding unit comprises a shielding means, which forms a slot in cooperation with the housing remover. This can be particularly space-saving effective protection of the control unit associated electronic unit can be achieved.

A further space can be saved if the shielding unit has a shielding means, which is formed integrally with the housing unit. It is also proposed that the hob comprises an air flow guide unit, which is provided for guiding an air flow flowing from a heating space provided for the heating means and is integrally formed with the shielding unit. In this way, in particular moisture can be dissipated away from the electronics unit with space-saving means by means of an air flow into a region insensitive to moisture, and an advantageous ventilation effect adapted to the first and second cooking zones can be achieved in a particularly space-saving manner.

It is further proposed that the hob has a shielding means for shielding the housing unit from the heating means attached to the heating means. As a result, further protection of the housing unit can be achieved with a particularly compact design.

Further advantages emerge from the following description of the drawing. In the drawings, embodiments of the invention are shown. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Show it:

Fig. 1 is a plan view of a hob, Fig. 2 shows the hob with base in a cross section and Fig. 3 is a view of the hob from below.

Fig. 1 shows a hob 1 1 in a plan view. On its upper side, which is provided for setting up cookware, the hob 1 1 has a cooking plate 34, which is formed mainly of glass ceramic. A mounting frame 44, which has the shape of a rectangular edge in plan view, lies completely on three of its inner sides and partially on the fourth on the cooking plate 34. To the cooking plate 34 further adjoins an operating unit 15, which is designed as a structural module. The structural module has an operating surface 110, a connecting piece 96 and further substructure elements shown in FIG. The building module is prefabricated prior to assembly of the hob 11 and is attached to the cooking plate 34 during assembly of the hob 11. In particular, the outer contour of the connecting piece 96 corresponds to the embodiment of a recess formed on the cooking plate 34, which serves as a receiving region for receiving the operating unit 15.

In the assembled state, the cooking plate 34 and the operating unit 15 form a rectangle, which is completely surrounded by the inside of the rectangular edge of the mounting frame 44. The side of the rectangular edge which incompletely rests against the cooking plate and forms the lower side in the plan view of FIG. 1 is referred to herein as the "lower" side, the opposite side as the "upper" side. The rectangle is divided by its bisector in four quadrants. The quadrants, which lie in the plan view on the left side of the bisector of the upper side, form a left side, the two remaining one right side. The rectangle formed by the cooking plate 34 and the operating unit 15 has a dimension of 560 mm in a length L which extends parallel to the lower side of the mounting frame 44 and 500 mm in a width B. The connecting piece 96 and the mounting frame 44 surround the contour of the control surface 1 10 completely. The operating unit 15 has control elements 66, which are shown schematically, which are designed as touch panels and / or as control buttons integrated in the operating surface 110, and a display unit 68. The operating surface 110 is a flat surface parallel to the upper side, i. to the footprint of the cooking plate 34, is aligned.

The cooking plate 34 includes cooking zones 72, 74, 76, 78, which are provided for setting up and heating cooking utensils. The operating elements 66 can be used for switching on and off and for controlling a heating power of heating means 18. These heating means 18, which are each assigned to one of the cooking zones 72, 74, 76, 78 or are arranged below one of the cooking zones 72, 74, 76, 78 (see FIG. 2), are each for heating one in a cooking zone 72, Provided 74, 76 and 78 parked cookware. The display unit 68 serves to output information to an operator and in particular to display a heating level of the heating means 18.

The cooking zones 72, 74, 76, 78 are arranged in pairs without overlapping on the cooking plate 34 and shaped differently. Furthermore, each quadrant is assigned a cooking zone. A first cooking zone 72 has a diameter of 180 mm and is associated with the lower quadrant. A second cooking zone 74 is in the lower right Quadrants arranged. The cooking zones 72 and 74 are arranged in the front region of the cooking plate 34, ie they have a smaller distance to the operating unit 15 than the remaining cooking zones 76, 78. The cooking zone 74 has a diameter of 210 mm. It is formed by two cooking surfaces 92, 94. The cooking surface 92 is formed as a circle and the cooking surface 94 is designed as a circular ring which is arranged concentrically with the circular cooking surface 92. Furthermore, the cooking surfaces 92 and 94 are arranged without overlapping and it is the cooking surfaces 92, 94 each associated with a heating means 18. Here, the cooking surface 92 can be heated either individually or in combination with the cooking surface 94. The third cooking zone 78 is located in the upper left quadrant. The cooking zone 78 is designed as a roaster zone and is formed by cooktops 88 and 90, to each of which a heating means 18 is assigned. Here, the cooking surface 90 can be heated either individually or in combination with the cooking surface 88. The cooking surface 90 is circular in shape with a diameter of 170 mm and has at least one partial region which is arranged along a direction parallel to the upper side of the rectangular edge between the bisector of this upper side and the further cooking surface 88. In this case, it has a smaller distance to at least two other cooking zones 74, 76 compared to the first cooking surface 88. The cooking surface 88 completes the cooking surface 90 to a surface which forms the third cooking zone 78. The surface of the cooking zone 78 is swept by the cooking surface 90 in an imaginary displacement parallel to the upper edge of the mounting frame 44 by at least about the simple radius, in particular about 1, 2 times the radius of the cooking surface 90, to the left is moved. The fourth cooking zone 76 is also circular in shape with a diameter of 145 mm. All cooking zones are each assigned a sensor unit 80, 82, 84, 86, which is arranged below the cooking plate 34.

Figure 2 shows the hob 11 with a base 13 in a cross section perpendicular to the cooking plate 34. The base 13 is located below the cooking plate 34 and is completed by the mounting frame 44 to the environment of the hob 11, for example, to a worktop out. Furthermore, the substructure 13 is delimited downward by a covering means 38. The substructure 13 has two subspaces, namely a heating chamber 48 and an electronics compartment 50. In the heating chamber 48, the heating means 18 and further components 17, shown schematically in the FIGURE, are arranged, while the electronics compartment 50 is assigned to the operating unit 15 is. The hob 11 is provided with a cooking unit protection device 9, which serves to the electronics compartment 50 relative to the heating chamber 48, in particular against in a cooking process of the heating means 18 heat and moisture generated, protect. For this purpose, the cooking unit protection device 9, a shielding unit 16 which separates the heating chamber 48 and the electronics compartment 50 from each other. The shielding unit 16 comprises a shielding element 20 and a shielding means 26. A housing unit 10 is arranged in the electronics space 50. The housing unit 10 has a housing remover 22 which forms a receiving area 12 for receiving an electronic unit 14. The remodeling means 22 is H-shaped in cross-section. Upper legs 54, 56 of the H-shape point upwards. Lower legs 58, 60 of the H-shape point downwards. The upper leg 54 is located on the heating chamber 48 side facing the H-shape, the upper leg 56 is located on the side facing away from the heating chamber 48 side of the H-shape. Accordingly, the lower leg 60 is located on the heating chamber 48 side facing the H-shape, the lower leg 58 is located on the side remote from the heating chamber 48 side of the H-shape. A connecting piece 62 connects the legs 54, 56, 58, 60. The two upper legs 54, 56 of the H-shape are compared to the two lower legs 58, 60 shortened.

The shielding means 26 extends perpendicular to the cooking plate 34 in a straight manner. The shielding means 26 and the upper leg 54 are connected via a connecting piece 64. The shielding means 26 and the lower leg 60 are parallel to each other. The shielding means 26 forms together with the connecting piece 64 and the lower leg 60 a slot 24 which extends perpendicular to the cooking plate 34. The shielding means 26 and the sheathing means 22, in particular the legs 54, 60, form a double wall of the housing unit 10 facing the heating chamber 48. The shielding means 26 and the sheathing means 22 respectively cover the receiving area 12 in a substantially horizontal direction towards the heating means 18 from.

The remover 22, the connector 64 and the shielding 26 form a one-piece unit. The remodeling means 22 and the shielding means 26 may in particular be made of one piece. In an alternative embodiment variant, the shielding means 26 and the housing unit 10 may be made separate from one another as different building units. In this case, the shielding means 26 is advantageously fastened to the housing unit 10 prior to assembly in the substructure 13 of the hob 11. In addition, an additional shielding means 106 is attached to the heating means 18. A non-illustrated insulating layer in the form of an insulating ring, which serves in particular for further protection of the enveloping unit 10, is also provided under the components 17. The insulating ring has a cross-section of a thickness of about 2 cm.

The upper leg 54, the connecting piece 62 and the upper leg 56 encase a receiving space 28. The receiving space 28 is U-shaped in cross section open at the top and is covered at the top by a control surface 110 forming the plate 108 of the control unit 15. The receiving space 28 is sealed by the shielding member 20 against the surrounding space and especially against the heating chamber 48 and protected from heat generated during a cooking process. The shielding element 20 is formed as a silicone foam. The lower legs 58, 60 and the connector 62 envelop the receiving area 12. This is U-shaped in cross-section downwardly open and is covered by the cover 38 down. The receiving area 12 and the receiving space 28 are condensed by the shielding unit 16 and the wrapping means 22 against heat from the heating space 48, which is developed during a cooking process, and against moisture which condenses during a cooking process in the heating space 48 and partly from one Air flow is removed, protected. A subset of the moisture can be removed by an air flow, which is guided by means of an air flow guide unit 36 which is integrally formed with the shielding unit 16 through openings 42 in the cover 38 down (see also Figure 3). The air flow guide unit 36 is formed by portions of the shielding unit 16, namely the shielding means 26, each projecting into one of the openings 42 and, as also shown in Figure 3, protrude from the cover 38. Furthermore, condensed moisture can run down the air flow guide unit 36 and in particular be transported away from the air flow.

With the help of a tab 46, the remodeling means 22 is connected to the mounting frame 44. In this case, the shielding element 20 is pressed against the lower side of the plate 108 by a clamping force. The shielding member 20 is adhered to the plate 108 without sticking. The shielding element 20 is mounted on the housing unit 10 and in particular on the connecting piece 64 and the upper leg 56.

In the receiving space 28, an electronics unit 31 is arranged. The electronics unit 31 comprises the display unit 68, which has an operating stage of the cooking zones 72, 74, 76, 78 for display a user visibly. For this purpose, the plate 108 is formed transparent at least in the region of the display unit 68. In addition, the electronic unit 31 has capacitive components 70 which register the operation of a control element 66 designed as a touch element and forward it to control electronics for controlling the heating means 18. The receiving area 12 has an electronics unit 14, which is designed as a relay unit with a printed circuit board.

Figure 3 shows a view of the hob 1 1 from below. The covering means 38 covers the heating chamber 48, which is indicated by an arrow, and the electronics compartment 50, which is also indicated by an arrow. From the cover 38, a set of openings 42 is recessed along the circumference of the electronics compartment 50, which are separated from each other for reasons of stability. Protruded through these openings 42, as described above with reference to FIG. 2, are continued subregions of the shielding unit 16, which form the air flow guiding unit 36.

reference numeral

9 Kocheinheitsschutzvorrich56 upper leg direction 58 lower leg

10 housing unit 60 lower leg

11 hob 62 connector

12 receiving area 64 connecting piece

13 Substructure 66 Operating element

14 Electronic unit 68 Display unit

15 operating unit 70 capacitive component

16 shielding unit 72 cooking zone

17 Component 74 Cooking zone

18 heating means 76 cooking zone

20 shielding element 78 cooking zone

22 Remodeling means 80 Sensor unit

24 slot 82 sensor unit

26 shielding means 84 sensor unit

28 receiving space 86 sensor unit

31 Electronic unit 88 Cooking surface

34 hotplate 90 cooking surface

36 air flow guide unit 92 cooking surface

38 Cover 94 Cooking surface

42 opening 96 connecting piece

44 Mounting frame 106 Shielding means

46 tab 108 plate

48 Boiler room 1 10 Control surface

50 electronics room L length

54 upper leg B width

Claims

claims

1. hob with a cooking plate (34) having at least four cooking zones (72, 74, 76, 78), of which at least a first and at least a second are formed substantially circular, and with an operating unit (15), as one of the cooking plate (34) different construction module is formed, characterized in that the first and the second cooking zone (72, 74) each have a diameter of at least about 180 mm.

2. Hob according to claim 1, characterized in that the first and the second cooking zone (72, 74) each have a smaller distance to the operating unit (15) as a third and a fourth cooking zone (76,

78).

3. Hob according to one of the preceding claims, characterized in that the first and / or the second cooking zone (72, 74) have a diameter of at least about 210 mm.

4. Hob according to one of the preceding claims, characterized in that the first and / or the second cooking zone (72, 74) at least a first cooking surface (92) and a second cooking surface (94), the first cooking surface (92) annular encloses.

5. Hob according to one of the preceding claims, characterized in that a third cooking zone (78) is elongated elongated and at least comprises a curved part contour having a radius of curvature of at least about 85 mm.

6. Hob according to claim 5, characterized in that the third cooking zone (78) has a first cooking surface (88) and at least one second cooking surface (90) which is formed substantially circular and a NEN smaller distance to at least two of the third cooking zone (78) different cooking zones (74, 76) than the first cooking surface (88).

7. Hob according to one of the preceding claims, characterized in that a further, substantially circular cooking zone (76) has a

Diameter of at least about 145 mm.

8. Hob according to one of the preceding claims, characterized by a cooking unit protection device (9) with at least one Umhausungseinheit

(10), which forms at least one receiving area (12) for accommodating at least one electronic unit (14) associated with the operating unit (15), and at least one shielding unit (16) attached to the housing unit (10) and intended to house the housing unit (10). 10) in front of at least one of the cooking zones (72, 74, 76, 78) assigned to shield heating means (18).

9. Hob according to claim 8, characterized in that the Umhausungseinheit (10) comprises a Umhausungsmittel (22), which forms the receiving area (12), and the shielding unit (16) comprises a shielding means (26), in cooperation with the Umhausungsmittel (22) forms a slot (24).

10. Hob according to one of claims 8 or 9, characterized in that the shielding unit (16) has a shielding means (26) which is formed integrally with the Umhausungseinheit (10).

11. Hob according to one of claims 8 to 10, characterized by an air flow guide unit (36) which is provided for guiding a one of the heating means (18) provided for the heating chamber (48) flowing air flow and with the shielding unit (16) is integrally formed ,

12. Hob according to one of claims 8 to 11, characterized by a shielding means (106) for shielding the Umhausungseinheit (10) in front of the heating means (18) which is fixed to the heating means (18).