WO2013083527A1

WO2013083527A1 - Gas hob

Info

Publication number: WO2013083527A1
Application number: PCT/EP2012/074261
Authority: WO
Inventors: Malika Glas; Alexander Marsch; Karsten Willmann; Nico Zendel
Original assignee: BSH Bosch und Siemens Hausgeräte GmbH
Priority date: 2011-12-09
Filing date: 2012-12-03
Publication date: 2013-06-13
Also published as: DE102011088077A1

Abstract

Gas hob (1) having a hob panel (2) which comprises an all-round edge (3) and an opening (20, 21, 22) for accommodating at least one gas burner (5, 6, 7), and having a lamp (17), which is arranged on the underside and is configured such that a periphery of the hob panel (2), in at least one operating state of the gas hob (1), lights up, in the direction of a user side, as an illuminated region (4).

Description

Gas hob

The present invention relates to a gas hob.

In modern household appliances, great emphasis is placed on the ease of use and the external appearance. For hobs, for example, is a simple

Appearance of the respective heating surface and the associated control panel desired. As a rule, smooth and simple surfaces are preferred.

So that the operator the assignment of control knob or control element and the associated cooking surface is displayed easily, is usually provided in built-in hobs a label on the control knob. For this purpose, symbols or displays in the immediate vicinity of the usually designed as a rotary knob controls are provided. In the case of electric hobs, illuminated control knobs and display elements such as displays are also known in part.

Especially in gas hobs, where operating knob usually mechanically

Coupling gas fittings for the associated burners are additional electrical

Installations rather not common. Therefore, in the past, printed symbols were usually used on the control knob or on the control panel. This can be the case with, for example, insufficient lighting or especially small icons

Incorrect operations lead, as the operator the assignment of the toggle to the actual gas burner in the hob is not clear.

Against this background, an object of the present invention is to provide an improved gas hob.

Accordingly, a gas hob is proposed, which has a hob plate with at least one heating area for receiving at least one gas burner and an operating area for receiving at least one gas burner

having associated control element. On the underside between the operating area and the heating area, an extensive lighting means for indicating an association between the gas burner and the operating element is arranged. In addition to the mostly mechanical installations on the gas hob for adjusting the heat output of a respective gas burner by the control knob or the

Operating element are additionally provided, in particular electrical, lighting means. In this case, the extended light source, so not only punctiform, for example in the manner of a hose or a chain of bulbs such as LEDs or other common lighting devices is conceivable. By expanded is meant, in particular, that the lighting means completely indicates a visual display between the operating element and the heating area or gas burner. In this respect results on the cooktop panel from the operator side, at least in the activated operating state of the gas burner, a clear assignment by the course of the light source. One can also speak of a light line between the control element and the respective heating area.

In embodiments, the lighting means is designed, for example, as a light guide. Light guides can be laid flexibly and be attached to the underside of the hob plate. The light guide has the advantage that a homogeneous, uninterrupted light towards the operator side, ie on the top of the gas hob, can be generated. The light guide may also be partially embedded in the hob plate. In particular, glass fibers or plastic fibers are considered as light guides, which are treated accordingly, so that a homogeneous light is produced along the light guide. In embodiments, the lighting means is formed as a light guide with a silicone material. For example, the light guide is at least partially formed from polydimethylsiloxane (PDMS) and preferably temperature resistant to at least 300 ° C.

In embodiments, the cooktop panel is configured such that in a switched off or deactivated state of the lighting means, a continuous line or strip-shaped connection between the heating area and the operating element for displaying the association between the gas burner and the control element is visible.

Due to the design of the hob plate or a processing of the same, it is possible that even with not activated light source still the assignment by a suitable lines, which is visually visible, between the control and the respective gas burner is reliably detected. In this respect, the operating safety and ease of use of a gas hob are improved. In particular, the continuous On the one hand, the design of the connection leads to a particularly clear assignment and visual display of the same and, on the other hand, to a particularly solid appearance and thus design of the entire gas hob.

In further embodiments of the gas hob, the cooktop panel is configured such that in a switched on or activated state of the illuminant is illuminated to an operating side continuous line or strip-shaped connection between the heating area and the control element for displaying the association between the gas burner and the control element is visible , Upon actuation of the control element, for example, the light source starts to glow and thus provides a visual indication or light line between the control element and the gas burner switched on. Thus, a clear assignment for the operator can be seen. The hob plate can at least partially made of a transparent

Hob plate material may be formed. For example, glass ceramics or annealing glass can be used as cooktop panel materials, so that the light emitted by the illuminant radiates toward the operator from bottom to top in the direction of the operating side. In embodiments of the gas hob, the cooktop plate is provided on the underside with an opaque coating which is interrupted in the region of the light-emitting means arranged on the underside.

Due to the interruption of a coating, for example a coating, which otherwise carries symbols or brand symbols for the gas hob, a connection between the respective operating area and the associated heating area is visible especially when the light-emitting means is switched off. In addition, by the interruption in the coating or painting of the cooktop panel precisely a line or connection can be realized. The interrupted areas can serve as a diaphragm for the light source.

Alternatively or additionally, the cooktop plate on the underside in the region of the lamp arranged on the underside with a semi-transparent coating for light be provided. The coating can also be given a special color, so that the upper side of the operator, the areas of the arranged bulbs are visible. The coating or painting of the hob plate can

be applied plate in particular by means of a printing process on the underside of the hob. For example, with the help of screen printing any pattern and in particular the connection line between the operating area and the heating area can be realized.

It is also conceivable that the coating of the hob plate underside in the

Area of the light source arranged at the bottom is removed by means of a material removal. Here, first, the hob plate can be completely painted or printed and with the help of water jet cutting very precisely a contour or

Line management for the light guide to be created. In particular, in a line, strip or curved assignment between the area of the control element on the hob plate and the heating area, the assignment is also recognizable when the actual gas burner is covered with a pot. In this respect, always a reliable assignment results in a particularly simple operation of the gas hob.

The gas hob may in embodiments comprise a control device for driving the light source. A corresponding control device determines, for example, as a function of an operating state of the gas burner, the luminous intensity or light color of the luminous means. In this case, a sensor for detecting a

Control element position can be provided. In addition, a heating power of a respective gas burner can be implemented by a changed luminosity or color of the illuminant for the connection between the respective control element and the heating area.

The gas hob comprises in particular at least one operating element. It is also conceivable that the gas hob comprises a plurality of heating areas, gas burners, controls and lighting, each with the aid of a light source an association between a respective control element and an associated gas burner in the manner of a continuous line or strip connection between the

Heating range and the control element is displayed. Preferably, the continuous line or strip-shaped compounds do not overlap. In this respect, several curves or graphs, which connect controls with heating or gas burners, visible. It is particularly advantageous that the connection is not interrupted, but a homogeneous upward to the operator side visible light in the on state is visible.

Further possible implementations of the invention also include not explicitly mentioned combinations of before or below with respect to the

Embodiments described features or embodiments of

Gas hob. The skilled person will also add or modify individual aspects as improvements or additions to the respective basic form of the invention.

Further advantageous embodiments and aspects of the invention are the subject of the dependent claims and the embodiments of the invention described below. Furthermore, the invention will be explained in more detail by means of preferred embodiments with reference to the attached figures.

It shows: FIG. 1: a perspective view of an embodiment of a gas hob;

Fig. 2, 3: a plan view of the embodiment of a gas hob in different operating conditions; 4: a side view of the gas hob of the embodiment of a

Gas cooktop; and

5 shows a cross-sectional view of the detail of an embodiment of a

Hob plate.

In the figures, the same or functionally identical elements have been given the same reference numerals, unless stated otherwise. Fig. 1 shows a perspective view of an embodiment of a gas hob. In this case, a first operating state of the gas hob 1 with an activated burner is indicated. The gas hob 1 comprises a hob plate 2, for example of glass ceramic or temper glass or other suitable material. In principle, metal wells are conceivable. The entire hob plate 2 is inserted into an opening of a worktop 3. The hob plate has not visible in Fig. 1 openings for gas burners 4, 5, 6, 7 are provided. Around each gas burner around pot carrier 8, 9, 10, 1 1 are arranged, which each provide a support surface for food containers above the burner flames. In this respect, around or at each gas burner 4, 5, 6, 7 heating regions 21, 22, 23, 24. A heating area 21, 22, 23, 24 is enclosed by a respective pot carrier 8, 9, 10, 1 1.

In order to adjust the heat output or the operating state of each gas burner 4, 5, 6, 7, controls 12, 13, 14, 15 are provided, which in

corresponding openings (in Fig. 1 hidden) in the hob plate 2 are arranged. This results in an operating area 20 at which the four control knobs 12, 13, 14, 15 are present on the hob plate 2. Each gas burner 4, 5, 6, 7 is assigned a control knob 12, 13, 14, 15. For example, the control knob 12 is associated with the gas burner 4. By changing the toggle position of the gas burner 4 can be turned on and changed in its heating power.

So that the assignment of the control knob 12, 13, 14, 15 to the gas burners 5, 6, 7, 8 or heating areas 21, 22, 23, 24 are clearly visible to an operator, the hob plate 2 is processed such that on the one hand, the underside light guide can be arranged, which shine through in the on state up light and on the other hand, in the off state, a line or connection between the respective

Operating element 12, 13, 14, 15 and the heating area 21, 22, 23, 24 are visible. For this purpose, for example, the hob plate 2 is coated on the underside and at the lines or strips to be realized, which are shown dotted in Fig. 1, 16, 17, 18, 19 interrupted or printed in a different color.

In at least one operating state, which is indicated in FIG. 1, for example, when the burner 6 is activated by the associated control knob 14, a light guide active and generated from the bottom of the hob plate 2 upwards a visible light 18. Thus, a line-shaped connection, which is clearly visible. The operator is thus clear that the control knob 14 controls the burner 6 and the burner 6 is activated. For this purpose, light guides are provided along the contours 16, 17, 18, 19 on the underside, which light up in the respectively activated state and form a light line. This results in a particularly appealing appearance and a reliable assignment of the control knob 12, 13, 14, 15 to the burner 4, 5, 6 or

Heating areas 21, 22, 23, 24.

Fig. 2 shows a plan view of the embodiment of a gas hob. Furthermore, FIG. 3 also shows a top view in a changed operating situation. While in Fig. 1 is shown as an activated in the orientation of Fig. 1 front right

Gas burner 6 is activated, which can be seen by the upwardly visible light tail or the light line 18, Fig. 2 shows all the gas burners 4, 5, 6, 7 is deactivated and Fig. 3 a gas burner 4, which is activated by the control knob 25 is controlled. It can be seen again in the plan view, the approximately rectangular shape of

Hob plate 2, which is integrated in a worktop 3 and is inserted into an opening thereof.

In FIG. 2, the gas hob 1 without the controls of Figure 1 is shown and turned off. Nevertheless, the operator recognizes a linear connection between the heating area 21 and the operating element 25 in the operating area 20 from the operating side. Similarly, a line 19 between the heating area 22 and the associated control knob 26 is visible. The same applies to connecting lines 18, 19 between the control knob 27 and the heating area 23 and the control knob 28 and the

Heating area 24. In the off state, especially when no light is activated from below through the hob plate 2 to the operating side, the operator still recognizes the exact assignment using the lines 16, 17, 18, 19. The lines 16, 17, 18, 19 do not overlap, so there is no danger of confusion. Although the lines 16, 17, 18, 19 are shown dotted, preferably a continuously visible display as an association between control knob 12, 13, 14, 15, which in the openings 25, 26, 27, 28, realized. 2 that the control knobs can be inserted in openings 25, 26, 27, 28 in the operating region 20 of the hob plate. Around the openings 25, 26, 27, 28 around a circular line is provided, which can be lit from below, so that, for example, upon activation or when switching on the burner 4, the associated control knob is illuminated from below. This is explained in more detail in FIG. For example, the burner 4 is switched on via the suitable control knob 12 (see FIG. Thus, a light line 16 between the lights

Heating area 21 and the control knob 12 inserted into the opening 25. In this case, the light guides used, which are provided on the underside, shown in more detail in Figures 4 and 5.

The underside, ie on the underside of the hob plate 2 is the same with a

Coating or coating provided. The paint is usually opaque and thus creates a dark sublime appearance at the top. In the area where the lines of light 16, 17, 18, 19 are to arise, the coating is interrupted, so that in the region of the light lines 16, 19, arranged optical fibers which emit light homogeneously in the activated state, so that the hob plate material lights or light radiates from below through the hob plate material to the operator. This results in the appearance, as indicated in FIG. 3, of the luminous line of light 16 and the lines 17, 18, 19 which are nevertheless visible but not luminous. It is also conceivable to use a control or control device 33 via suitable control signals 32 is coupled to the optical fibers 30, 31, different colors of the optical fibers 30 are set in dependence on the operating state.

The optical waveguide 30 is, for example, a plastic fiber or glass fiber, into which light is fed at a coupling point, which is detected by suitable means

Surface treatment of the light guide radiates again or is scattered from the inside to the outside. In this case, plastic materials can be used, which can be easily arranged on the hob base plate. In particular, it is conceivable to provide silicone hoses or profiles with embedded light guides.

FIG. 4 shows the light strip 16 with the activated light guide 30 arranged therebelow, so that light radiates upward. The light guide 31 also extends below the strip-shaped line 19, but is turned off. By the Interruption of the coating 29 in the region of the light guides, the displays or connections between the controls and the respective heating areas 21, 22, 23, 24 are always visible.

Fig. 5 shows schematically a cross-sectional view of a hob plate. The

Hob plate is again with a paint, for example, in one

Screen printing process coated. The coating 29 is then interrupted where a strip is to be visually visible at the top. This point is designated 17. At the bottom is then a light guide 30 or a suitable luminous means 30, which is tubular or set by individual segments together

arranged. The contour of the upwardly visible line 16 (see, for example, between control knob 13 and heating area 22) is then simulated accordingly.

Due to the constantly visible linear connections, which preferably do not intersect or overlap, the operator is always reliably displayed an association between the control knob and the associated burner. A faulty operation can thus be virtually ruled out. In this respect, a special results

safe to use gas hob. In addition, the smooth, in particular glass or ceramic surface of the hob plate a particularly attractive design allows.

Although the present invention has been described with reference to embodiments, it is variously modifiable.

Used reference signs:

1 gas hob

2 hob plate

3 worktop

4 lighting area

4-7 gas burners

8-11 pot carrier

12-15 control element

16-19 Visual connection

20 operating area

21 -24 heating area

25-28 opening

29 coating

30, 31 optical fiber

32 control signal

33 control device

Claims

1. Gas hob (1) with a hob plate (2), which at least one heating area (21, 22, 23, 24) for receiving at least one gas burner (4, 5, 6, 7) and an operating area (20) for receiving at least one of the gas burner (21, 22, 23, 24) associated with control element (12, 13, 14, 15), and with an underside between the operating area (20) and the heating area (21, 22, 23, 24) arranged extended Lighting means (30, 31) for indicating an association between the gas burner (4, 5, 6, 7) and the operating element (12, 13, 14, 15).

2. gas hob (1) according to claim 1, characterized in that the lighting means (30, 31) is designed as a light guide.

3. gas hob (1) according to claim 1 or 2, characterized in that the

Hob plate (2) is designed such that in a switched off or

deactivated state of the lighting means (30, 31) a continuous line or strip-shaped connection between the heating region (21, 22, 23, 24) and

Operating element (20) for displaying the association between the gas burner (4, 5, 6, 7) and the operating element (12, 13, 14, 15) is visible.

4. Gas hob (1) according to any one of claims 1-3, characterized in that the cooking field plate (2) is designed such that in a switched on or activated state of the illuminant (30, 31) one to an operating side glowing

continuous line or strip connection between the heating area (21, 22, 23, 24) and the operating element (20) for indicating the association between the heating area (21, 22, 23, 24)

Gas burner (4, 5, 6, 7) and the operating element (12, 13, 14, 15) is visible.

5. gas hob (1) according to any one of claims 1-4, characterized in that the cooktop panel (2) is at least partially formed of a transparent cooktop panel material.

6. gas hob (1) according to any one of claims 1-5, characterized in that the cooktop plate (2) is provided on the underside with an opaque coating (29) which is interrupted in the region of the lower side arranged illuminant (30, 31).

7. gas hob (1) according to any one of claims 1-6, characterized in that the hob plate (2) is provided on the underside in the region of the light-emitting means arranged below (30, 31) with a semi-permeable to light coating.

8. gas hob (1) according to claim 6 or 7, characterized in that the

Coating is applied by means of a printing process on the underside of the hob plate (2).

9. gas hob (1) according to any one of claims 6-8, characterized in that the coating (29) of the hob plate (2) is removed on the underside in the region of the lower side arranged illuminant (30, 31) by means of a material removal.

10. gas hob (1) according to any one of claims 1-9, further comprising a control device (18) for driving the lighting means (17).

1 1. Gas hob (1) according to claim 10, characterized in that the

Control device (18) controls the lighting means (17) in dependence on an operating state of the gas burner (5, 6, 7).

12. gas hob (1) according to claim 10 or 1 1, characterized in that the control device (18) controls a luminous intensity and / or light color of the lighting means (17).

13. gas hob (1) according to any one of claims 1-12, characterized in that the hob plate (2) is at least partially made of glass ceramic, temper glass, or cordierite.

14. gas hob (1) according to any one of claims 1-13, further comprising at least one operating element (12, 13, 14, 15).

15. gas hob (1) according to any one of claims 1-14, characterized in that the gas hob a plurality of heating areas (21, 22, 23, 24), gas burner (4, 5, 6, 7),

Operating elements (12, 13, 14, 15) and lighting means (30, 31), wherein in each case with the aid of a lighting means (30, 31) an association between a respective operating element (12, 13, 14, 15) and an associated gas burner ( 4, 5, 6, 7) in the manner of a continuous line or strip-shaped connection (16, 17, 18, 19) between the

Heating range (21, 22, 23, 24) and the operating element (20) is displayed, and wherein the continuous line or strip-shaped connections (16, 17, 18, 19) do not intersect.