DE102010039070A1 - Household appliance with a hob and method for displaying energy consumption - Google Patents

Abstract

The domestic appliance has a hob (1) with at least one cooking zone (7a; 7b), the hob (1) being set up to determine and display an energy consumption of the at least one cooking zone (7a; 7b). The method is used to display an energy consumption on a household appliance, the household appliance comprising a hob (1) with at least one cooking zone (7a; 7b) and an energy consumption for each cooking zone (7a; 7b) individually and because the hob (1) is switched off / or cumulatively determined and displayed for all cooking zones (7a; 7b).

Description

The invention relates to a household appliance, which has a hob with at least one cooking zone, for. As a cooking area or a stove. The invention further relates to a method for displaying a power consumption of a household appliance.

For electric heaters or instantaneous water heaters (eg of the type Stiebel-Eltron DHE 21 SL electronic comfort) integrated energy consumption displays are known. For refrigerators, energy efficiency ratings (eg, from 'A' to 'F') are known which provide a rough estimate of relative energy consumption to a user.

It is the object of the present invention to increase an environmental awareness and / or a cost awareness when operating kitchen appliances.

The object is achieved by a household appliance, in particular kitchen appliance, comprising a hob with at least one cooking zone, wherein the hob is adapted to determine and display an energy consumption of the at least one cooking zone. This household appliance has the advantage of providing a user with accurate information about the energy consumption and cost involved in cooking, etc. The user can also determine which configurations consume how much energy and thus learn a particularly energy-friendly cooking. For example, the user can vividly and without much effort compare energy consumption for a cooking process with a cooking vessel with and without lid together or compare a cooking process with a cooking vessel on a large and a small cooking zone.

The energy consumption may be, for example, an electrical energy consumed by the at least one cooking zone. The energy consumption can be determined and / or displayed in particular in kWh, which advantageously represents a quantity known to many users, which can be easily compared.

The household appliance can be, for example, a stand-alone hotplate, a stove or another combi appliance.

The determining may include measuring the energy, e.g. B. by means of one or more sensors, such. B. by means of an electric knife. The determining may also include calculating (instead of measuring) the energy, e.g. B. by linking known Relaistaktzeiten to activate a cooking zone with associated known current levels. The determination by means of the calculation has the advantage that there are no costs for a measurement setup.

It is an embodiment that the cooktop is adapted to determine and display the energy consumption for each of the at least one cooking zone. This allows a user to easily find out about the energy consumption of a particular cooking zone and a food prepared on it. The energy consumption can be displayed for a duty cycle of the hob and / or for the life of the household appliance.

It is still an embodiment that the hob is set up to determine and display a (cumulative or cumulative) energy consumption of all cooking zones. As a result, a user can simply talk about the energy consumption of all cooking zones and all food prepared thereon, the z. B. form part of a menu sequence, inform. The energy consumption can be displayed for a duty cycle of the hob and / or for the life of the household appliance.

It is also an embodiment that the hob is adapted to determine and display a power consumption during a previous duty cycle of the hob. This allows a user to easily find out about the energy consumption of a defined cooking process. It is a development that the energy consumption of a user in a memory can be stored and retrieved at any later time again.

It is also an embodiment that the hob is adapted to determine and display energy consumption for a cooker life. As a result, a user can obtain a sense of power consumption of the home appliance, especially in comparison with other household appliances.

It is yet another embodiment that the hob has for each of the cooking zones a cooking zone display area for displaying at least one cooking level of that cooking zone and the hob is arranged to display the energy consumption in or by the cooking zone display areas. In other words, when the cooking zones are turned off, the cooking zone display areas used in operating the cooking zones to display a cooking level (eg, from 1 to 9) may also be used to indicate energy usage. As a result, it is possible to dispense with a dedicated energy display area.

It is a development that energy consumption (ie, a certain energy consumption, for example, a cooking zone or all cooking zones cumulative) can be displayed simultaneously in several, in particular all, display areas, in particular in all cooking zone display areas. For example, each of the cooking zone display areas may display one or more different locations of energy usage. In particular, each of the cooking zone display areas may be a digit. The energy consumption can therefore be represented with as many digits as the cooking zone display areas provide.

It is a particularly simple and inexpensive development that a cooking zone display area is a segment display, e.g. B. a 7-segment display or a 14-segment display.

It is also a development that the cooking zone display areas are adapted to an intermediate cooking level which is between two full cooking levels (eg an intermediate cooking level "1.", which is between the cooking levels "1" and "2" "Is), by means of z. As a point to represent, for example by means of a 7-segment display or a 14-segment display. By a representation of the point at a suitable location, a number divider can be realized.

It is also an embodiment that the cooktop is adapted to design a display of the cooking zone display area for the cooking zone whose energy consumption is currently displayed, different from the displays of the cooking zone display areas for the other cooking zones, in particular by a different brightness. For example, an indication of power consumption of a first cooking zone may be visually emphasized by making the figure located in the cooking zone display area associated with the first cooking zone distinctively brighter or darker than the digits of the other (e.g. fourth) cooking zone display areas. Thus, the energy consumption is easily recognizable and at the same time the associated cooking zone easily identifiable. This embodiment is also easily ausgestaltbar, z. B. by known dimmable segment displays.

It is a development that is visually particularly well distinguishable that a display of the cooking zone display area for the cooking zone whose energy consumption is currently displayed can be configured by a color different from the displays of the cooking zone display areas for the other cooking zones.

It is a development which is also visually distinguishable in that a display of the cooking zone display area for the cooking zone whose energy consumption is currently displayed can be configured by flashing differently from the displays of the cooking zone display areas for the other cooking zones which are continuously lit. This development also has the advantage that the display need not be set up either for a change in brightness or for a color change.

To display an energy consumption accumulated over the cooking zones, a display of the energy consumption can be displayed the same, at least for the cooking zone display areas, in particular with a same, in particular increased, brightness.

It is a particularly easy to implement and readable that a display of the cooking zone display area for the cooking zone whose energy consumption is currently displayed by a previous display of a predetermined, in particular alphanumeric, character string in this cooking zone display area as opposed to the displays of the cooking zones Display areas for the other cooking zones is ausgestaltbar. This development also has the advantage that the display need not be set up either for a brightness change or for a color change. The temporal separation of the identification of the cooking zone from the display of energy consumption facilitates a simple conception. The string may include one or more characters. The string is advantageously designed to be particularly intrusive for a user, rather than an indicator of energy, e.g. For example, before displaying the power consumption of the first cooking zone in the associated cooking zone display area, an "E" may be displayed while the other cooking zone display areas do not indicate a character string.

It is also an embodiment that the hob is set up to display the energy consumption (in particular a specific energy consumption, eg a cooking zone or all cooking zones cumulated) in cooking zone display areas, as well as an alphanumeric and / or symbolic identifying the associated cooking zone Display string. Such a string can, for. B. "E1" for the first cooking zone, "E2" for the second cooking zone, etc. are.

It is also an embodiment that the cooktop is adapted to display the energy consumption (in particular a certain energy consumption, eg a certain cooking zone or all cooking zones cumulated) in cooking zone display areas, as well as to display the associated cooking zone by means of a symbol, wherein the symbol has a cooking zone identifying position. Such a symbol may, for. B. for a (from the user's perspective) lower left first cooking zone, z. B. square, symbol, which occupies a lower left position in a display area, etc. This symbol can be illuminated, for example, by means of an LED and thus be switched on and off.

It is a further development that the hob is set up to display the character string identifying the associated cooking zone or the icon identifying the cooking zone in at least one display area other than a cooking zone display area. Thus, the associated cooking zone identifying string can be displayed simultaneously with the energy consumption, resulting in a quick and clear display. In particular, the other display area may be a display area for a timer or "timer" ("timer display area"), as it is often already present in existing hobs. The character string identifying the associated cooking zone can be displayed or displayed in particular for all ads of an energy consumption in the same other display area.

It is a further development that the cooktop is set up to display the character string identifying the associated cooking zone or that the cooking zone identifies the icon in at least one cooking zone display area. In particular, the cooking zone display areas can also display at least one symbol in addition to an alphanumeric display, eg. The symbol may preferably be used in normal operation, the arrow for example for displaying an activated timer function for this cooking zone, so that in this case a conventional cooking zone display area is also usable for an indication of the energy consumption.

It is still an embodiment that the display areas are arranged in a matrix. The display areas may, for example, be arranged in a row (m × 1 matrix) or arranged quadratically (m × m matrix). The arrangement of the display areas in a row has the advantage that a reading of the energy consumption can be done line by line.

The object is also achieved by a method for displaying energy consumption on a domestic appliance, wherein the household appliance comprises a hob with at least one cooking zone and energy consumption for each cooking zone is individually and / or cumulatively determined and displayed for all cooking zones due to a hob off the hob.

The method can be configured in particular analogously to the household appliance.

• (i) Initiieren eines Ausschaltvorgangs;
• (ii) Dunkelschalten zumindest der Kochzonen-Anzeigenbereiche für eine vorbestimmte Zeitdauer;
• (iii) aufeinanderfolgendes Anzeigen des Energieverbrauchs der einzelnen Kochzonen;
• (iv) erneutes Dunkelschalten zumindest der Kochzonen-Anzeigenbereiche für eine vorbestimmte Zeitdauer und
• (v) Anzeigen des kumulierten Energieverbrauchs und/oder des Gesamtenergieverbrauchs der Kochzonen.

It is an embodiment that the method comprises the following steps:

• (i) initiate a turn-off operation;
• (ii) darkening at least the cooking zone display areas for a predetermined period of time;
• (iii) successively displaying the energy consumption of the individual cooking zones;
• (iv) re-darkening at least the cooking zone display areas for a predetermined period of time and
• (v) displaying the cumulative energy consumption and / or the total energy consumption of the cooking zones.

In particular, the steps (v) and (iii) can also be exchanged. For example, steps (ii) and (iv) may also be omitted.

Step (iii) may include, for example, a direct sequential display of the energy consumption of the individual cooking zones, or a sequential display of the energy consumption of the individual cooking zones separated by a brief dark switching.

The allocation of the currently displayed energy consumption to the individual cooking zones can, as already described above, be achieved, for example, by a blinking, a changed brightness, an assignment of an explanatory character string or symbol, a preceding display of an explanatory character string, etc.

This object is achieved according to the features of the independent claims. Preferred embodiments are in particular the dependent claims.

In the following figures, the invention will be described schematically with reference to exemplary embodiments. In this case, the same or equivalent elements may be provided with the same reference numerals for clarity.

1a - 1j show a flow of a power consumption display of a cooktop according to a first embodiment;

2a - 2y show a flow of a power consumption display of a cooktop according to a second embodiment;

3a - 3n show a flow of a power consumption display of a cooktop according to a third embodiment;

4a - 4y show a flow of a power consumption display of a cooktop according to a fourth embodiment;

5a - 5y show a flow of a power consumption display of a cooktop according to a fifth embodiment;

6a - 6y show a flow of a power consumption display of a cooktop according to a sixth embodiment;

7a - 7y show a flow of a power consumption display of a cooktop according to a seventh embodiment;

8a - 8j show a flow of a power consumption display of a cooktop according to an eighth embodiment;

9a - 9j FIG. 10 shows a flow of a power consumption display of a cooktop according to a ninth embodiment. FIG.

1a shows a plan view of a portion of a hob 1 , The stove top 1 For example, it may be a single device or part of a cooker. The cut-out shows a lower edge of the hob 1 , in front of which usually puts a user to the hob 1 to use. The bottom edge is here as a bar 2 , z. B. made of brushed aluminum. Above the bar 2 there is a top cooktop cover 3 made of glass or glass ceramic, on which different symbols S in a row parallel to the bar 2 are arranged. These symbols S can be underlaid with sensor fields, for example, so that they serve as sensor buttons. For example, the symbol S shown at the far left indicates an on / off switch 4 which, when actuated or touched by a user, turns the hob on or off. Right next to it are two sensor buttons "-" 5a and "+" 5b for lowering or raising a cooking level of an associated cooking zone. The cooking zone is through an above the sensor button 5a and 5b arranged symbol 6 identifiable, which here by the filled point below an open point a cooking zone 7a of four square cooking zones, which is located within the square pattern at a lower left position.

Right next to the sensor button 5b for raising the cooking level of the lower left-hand hob 7a there is a sensor button 8th among other things for activating a child safety lock.

Right next to the sensor button 8th are analogous to the two sensor buttons 5a and 5b again two sensor buttons 9a and 9b for lowering or raising a cooking level of a left upper cooking zone (not shown), which is indicated by the printed symbol 10 indicated and identifiable.

Right next to the sensor buttons 9a and 9b In turn, there are two sensor buttons 11a and 11b for lowering an input value, but now for setting a time at a timer or "timer", which is indicated by the clock-shaped timer symbol 12 is indicated. Above the symbols and buttons assigned to the timer 11a . 11b . 12 there is a timer display area 23 to display an associated period of time. The timer ad area 23 has two 7-segment or 14-segment displays.

Right of the symbols or buttons 11a . 11b . 12 There are two pairs of sensor buttons analogous to the left side 13a and 13b respectively. 15a and 15b for downshifting or upshifting a cooking level of the upper right cooking zone as indicated by the symbol 14 indicated, or the right lower cooking zone 7b as by the symbol 16 indicated.

The row of symbols S may also have further sensor buttons or other operating elements or symbols.

In addition to the controls, especially sensor buttons, and printed symbols, the hob indicates 1 still display areas on which either have a fixed shape and can be switched on and off or which allow a flexible display of multiple symbols or characters, etc. In detail, the hob has 1 one above the on / off switch 4 arranged display area 17 on, which lights up when the hob is on and dark (turned off or off) when the hob is on 1 is switched off or is within a shutdown sequence. Each of the cooking zones 7a . 7b is also a cooking level display in the form of a cooking zone display area 18 to 21 assigned, which is realized in each case by a segment display. For example, the segment display may represent the digits 0 through 9 and various letters and characters, such as dots. Here are the cooking zone display areas 18 to 21 when the hob is switched on 1 the following cooking levels: cooking level "9" for the lower left cooking zone, cooking level "5" for the upper left cooking zone, cooking level "1" for the upper right cooking zone and "3" cooking level for the lower right cooking zone 7b , The cooking level "3." provides an intermediate level between the cooking levels 3 and 4 so that in total each of the cooking zones 7a and 7b With 17 or 18 Cooking stages can be operated. 1a thus shows a switched-on hob 1 in which all four cooking zones 7a . 7b are activated.

1b shows the hob 1 after a user turns the on / off switch 4 has pressed. This will make the hob 1 off, what a the hob 1 associated control unit activates a shutdown sequence or routine. First, the ad areas 17 as well as the cooking zone display areas 18 to 21 dark or deactivated. At the same time it becomes an energy symbol display area 22 activated. The energy icon display area 22 indicates to the user that the hob 1 is in a state in which there is energy consumption of the cooking zones 7a . 7b calculated and displayed. The energy icon display area 22 indicates the string "kWh" in which unit the consumed energy is displayed below. This ad in kWh is known to a user and therefore accessible for comparison.

1c shows the hob 1 with a displayed first energy consumption in the previous switch-on interval, namely for the left lower cooking zone 7a , The cooking zone display areas 18 to 21 , which are arranged in a row, now serve to display the various digits of the value of the energy consumed. The displayed energy consumption here is "0.623" kWh, ie 0.623 kWh, where the segment display of the cooking zone display area 18 represents the number divider.

So that a user that cooking zone 7a can identify to which the display of energy consumption relates is the cooking zone display area (here: 18 ), which of the associated cooking zone (here: 7a ), in one of the other cooking zone display areas 19 to 21 different brightness. This is in the cooking zone display area 18 displayed symbol "0." is displayed brighter than that in the cooking zone display areas 19 to 21 displayed symbols (numbers "6", "2" and "3"). Alternatively, the display of the cooking zone display area associated with the currently displayed cooking zone may also be darker.

1d shows one to the 1c Analog representation of energy consumption, but now for the upper left cooking zone. To do this, the cooking zone display area radiates 19 brighter for this cooking zone than the other cooking zone display areas 18 . 20 . 21 , An energy consumption of 0.872 kWh is displayed.

1e and 1f show in an analogous way the energy consumption for the upper right cooking zone and the right lower cooking zone 7b , namely an energy consumption of 0.144 kWh or 0.259 kWh.

The displayed energy consumption corresponds to the energy consumption per cooking zone for the duration between the last time the hob was switched on 1 and the associated switch-off (duty cycle).

1g then shows the energy consumption of the individual cooking zones 7a . 7b the cumulative or added energy consumption of all four cooking zones 7a . 7b for the last duty cycle of the hob 1 namely 1.898 kWh (= 0.623 kWh + 0.872 kWh + 0.144 kWh + 0.259 kWh). To distinguish the cumulative energy consumption display, the cooking zone display areas are lit. 18 to 21 with the same brightness, so no highlighting of a particular cooking zone 7a . 7b occurs.

1h below shows a total energy consumption of the hob 1 since its first commissioning, namely here of 278 kWh. The rightmost cooking zones display areas 21 a point as a divider. Under the "first startup" can the total energy consumption also over the lifetime of the hob 1 understood, the total energy consumption since the last connection to a power supply and / or the energy consumption since a last-time reset of the total energy storage storage.

1i shows a state of the hob following the display of the values of the various energy consumptions 1 in which analog to 1b the cooking zone display areas 18 to 21 all are switched off again. 1i corresponds to an end of a routine or sequence for displaying energy consumption.

1j shows a subsequent indication of residual heat for the displayed cooking zone display areas 18 to 21 associated cooking zones 7a . 7b , where the segment displays are an "H" for a hot cooking zone 7a . 7b and indicate an "h" for a less hot cooking zone.

2a to 2y show a flow of a power consumption display analogous to that in the 1a to 1j except that now for an indication of the energy consumption of the individual cooking zones 7a . 7b the associated cooking zone display area 18 to 21 no different brightness indicates, but flashes, as indicated by the in

2c to 2f indicated rays indicated. The in the 2g and 2h shown accumulated energy consumption values for the previous duty cycle of the hob 1 or for the total energy consumption of the hob 1 do not have a flashing cooking zone display area 18 to 21 on. The flashing display has the advantage that it can also be implemented in displays that do not allow gradable brightness, and they are also very noticeable, which facilitates the identification of the current cooking zone.

3a to 3n show a flow of a power consumption display of the hob 1 according to a third embodiment, wherein instead of one of the displays 1c to 1g or 2c to 2g two steps or sub-steps are carried out in each case. Instead of differentiation or lack of differentiation of the cooking zone display areas 18 to 21 In each case, a first sub-step is first carried out, in which at a cooking zone display area 18 to 21 whose energy consumption is to be displayed (according to the 1c to 1f or 2c to 2f ), one character is displayed and in the other cooking zone display areas 18 to 21 no character is displayed. For example, the character may be an abbreviation for the term "energy." Eg "E". The sign can, as indicated here, flash. Through this first step, in the 3b . 3d . 3f and 3h is shown by the "E" the user an indication of that cooking zone 7a . 7b given, which in the following (in the 3c . 3e . 3g respectively. 3i ) is shown. The following displayed energy consumption can be used for all cooking zone display areas 18 to 21 be shown in the same way, ie, without differences in brightness and without flashing.

This embodiment has the advantage that an identification of the cooking zone 7a . 7b and an associated indication of the power consumption, so that a user can better focus on reading the power consumption, which is also more readable.

The the 1g or 2g analog cumulated energy consumption for the previous duty cycle of the hob 1 is displayed here so that, as in 3y shown, all cooking zone display areas 18 to 21 in a first sub-step in each case by a (flashing or not flashing) "E" are displayed, whereby a user immediately intuitively recognizes that in the following, as in 3k shown, the energy consumption of all cooking zones 7a . 7b displayed together. The in 3l shown total energy consumption of the hob 1 since its first commissioning, it can be directly connected to the display of the cumulative energy consumption for the previous duty cycle.

By in the 3b . 3d . 3f . 3h and 3y The first partial steps shown can be compared to the time differentiation of the ads in the 1b and 1i or 2 B and 2i shown dark switching of the cooking zone display areas 18 to 21 be waived.

4a to 4y show a flow of a power consumption display of the hob 1 according to a fourth embodiment. The display flow according to the fourth embodiment is similar to the display flow, for example, according to the first embodiment as shown in FIGS 1a to 1j is shown, but now additionally a display area for the timer, hereinafter "timer display area" 23 called, to identify a cooking zone 7a . 7b or all cooking zones 7a . 7b instead of differentiating a display of the cooking zone display areas 18 to 21 , It is here in particular exploited that the timer display area 23 can represent at least two digits. The first digit should symbolize an energy indicator, eg. B. "E", while the second digit of a cooking zone 7a . 7b associated with the associated number.

For example, it shows 1c analog 4c in the cooking zone display areas 18 to 21 the energy consumption of the lower left cooking zone 7a , The cooking zone 7a is referred to as the "first cooking zone" and in the timer display area 23 displayed as string "E1". A user thus knows that in the cooking zone display areas 18 to 21 indicated number of energy consumption for the previous on-state of the hob 1 the first cooking zone 7a equivalent. Analog show the 4d to 4f the energy consumption of the second (upper left) cooking zone "E2", the energy consumption of the third (upper, right) cooking zone "E3" or the energy consumption of the fourth (lower, right) cooking zone "E4" 7b , The designation of the cooking zones as first to fourth cooking zone corresponds to the row of cooking zone symbols indicated in the reading direction from left to right 6 . 10 . 14 and 16 ,

The cumulative energy consumption during the previous duty cycle of the hob 1 can for example be symbolized by the string "En" as in

4g shown. The string "En" can, as in 4h shown even during the display of the total energy consumption of the hob 1 a user can distinguish between the cumulative energy consumption and the total energy consumption firstly by the sequence of the display as well as by the size of the displayed energy value.

This embodiment has the advantage that an indication of the energy consumption is easily readable and assignable to a specific cooking zone at the same time.

5a to 5y show a flow of a power consumption display of the hob 1 according to a fifth embodiment. This process is similar to that in the 4a to 4y shown process according to the fourth embodiment, wherein now in the timer display area 23 no string from numbers and / or letters is displayed, but a symbol, here: a small square 24 whose position is in the timer display area 23 a relative position of an associated cooking zone 7a . 7b on the hob 1 equivalent. For example, the show 5c to 5f one after the other the square 24 as a symbol for the indicated cooking area 7a . 7b where, for example, the square 24 in 5c which is in the timer display area 23 assumes a relative lower left position, the lower left cooking zone 7a equivalent. The square is analogous 24 in 5d in a left upper position of the timer display area 23 and thus identifies an indication of energy usage for the corresponding one located on a top left position on the hob 1 cooking zone, etc. The cumulative energy consumption for the previous cooking time of the hob 1 can, as in 5g shown, for example, by displaying all squares 24 be symbolized, which can be realized here, for example, by displaying two digits "8". Again, a user can except the displayed position of the respective square 24 the energy consumption of a cooking zone 7a . 7b determine the order of the ad.

The total energy consumption, as in 5h For example, it can be distinguished from the other energy consumption displays that the timer display area 23 is dark.

6a to 6y show a flow of a power consumption display of the hob 1 according to a sixth embodiment similar to the flow of the energy consumption display according to the fifth embodiment, but now to identify a cooking zone 7a . 7b or all cooking zones 7a . 7b that in the timer display area 23 listed symbol is not the same, but depending on the associated cooking zone 7a . 7b different. That's how it shows 5c analog 6c no full square, but only two more substantially perpendicular abutting bars, which as an arrowhead 25 can be interpreted.

This arrowhead 25 Not only is it located in a lower-left portion of the timer display area 23 and thus identifies the left lower cooking zone 7a but the arrowhead 25 also shows in the lower left direction. This will detect the position of the icon 25 in the timer display area 23 facilitated.

Accordingly, the arrowheads 25 for the 6d to 6f to the top left, top right or bottom right. In the 6g The cumulative energy consumption display shown consists of all arrowheads 25 together and results in a hollow square symbol, which serves as a symbol for an outer contour of the entire hob 1 stands and is easily recognized as such by a user.

7a to 7y show a flow of a power consumption display of the hob 1 according to a seventh embodiment, which is similar to the flow of the power consumption display according to the fourth embodiment. While in the 4c to 4h the corresponding energy consumption indicators by means of a different display of the timer display area 23 can be differentiated or differentiated (so does the in 4h The string "en" shown to be replaced by another string, "eg", etc.) will now be in the timer display area 23 for each of the in the 7b to 7h shown energy consumption values each have the same string "En" displayed, which is merely to symbolize that the displayed digits belong to a power consumption display. A differentiation between the different types of energy consumption is done by another symbol, namely one above the digits of the cooking zone display areas 18 to 21 displayable lying arrow 26 , This arrow 26 can be part of the cooking zone display area segment display 18 to 21 or a separate ad area. In normal operation, this lying arrow 26 for example, one for the associated cooking zone 7a . 7b symbolize activated timer or timer. 7c thus shows an example of an energy consumption indicator for the left lower cooking zone 7a because the lying arrow 26 above the cooking level indicator for the lower left cooking zone 7a located. The cumulated energy consumption for all cooking zones 7a . 7b During the previous switch-on can be symbolized by the arrows 26 each of the hotplates 7a . 7b are activated or light up as in 7g shown. The total energy consumption may be due, for example, to the lack of display or the deactivation of the horizontal arrows 26 be identified as in 7h shown. The use of the timer display area 23 has the further advantage that the separate power symbol display area 22 can be waived.

8a to 8j show a flow of a power consumption display of a hob 31 according to an eighth embodiment. In the hob 31 are the cooking zone display areas 18 to 21 no longer arranged linearly from left to right (ie, in a 4 × 1 matrix arrangement) but square in a 2 × 2 matrix arrangement. The position of the cooking zone display area 18 to 21 corresponds to a relative position of the associated cooking zone 7a . 7b on the hob 31 , Activation of a setting of a respective cooking zone 7a . 7b happens, for example, by repeatedly touching or pressing ("toggling") a Hob activation button 48 of the respective cooking zone display area 18 to 21 , The following can be done by pressing a timer activation button 49 a timer function for the assigned cooking zone 7 aa . 7b to be activated. The activated timer function is lit by a timer activation display area 47 displayed. Here are each of the cooking zone display areas 18 to 21 adjacent to a watch-like, printed timer icon 42 and one of the timer activation display areas 47 assigned.

After pressing the on / off switch 4 first, as in 8b shown in two adjacent cooking zone display areas 19 . 20 the string "En" is displayed to prepare a user to see energy usage below.

Following will be in 8c in the cooking zone display areas 19 . 20 . 18 . 21 from top left to bottom right, the corresponding digits of the value of the energy consumed are displayed, here initially symbolizing an energy consumption of 0.872 kWh for the left upper cooking zone, which is symbolized by the one at the associated cooking zone display area 19 luminous timer activation display area 47 is identifiable. Accordingly, successively, as in the 8d to 8f shown, the energy consumption values for the upper right cooking zone, the lower left cooking zone 7a and the right lower cooking zone 7b displayed. The cumulated energy consumption of all cooking zones 7a . 7b for the last duty cycle of the hob 31 is activated by activating all timer activation ad areas 47 symbolizes. The total energy consumption will be, as in 8h shown by identifying that none of the timer activation ad areas 47 is activated. After that, in 8i a completion of the power display sequence symbolized by a re-display of the string "En". Again, clicking on the separate power icon display area 22 be waived.

9a to 9j show a flow of a power consumption display of a hob 51 according to a ninth embodiment. The stove top 51 now has cooking zone display areas 58 to 61 which are arranged in a 2 × 2 matrix form, the position of the cooking zone display areas 58 to 61 at least approximately a relative position of the associated cooking zones on the hob 51 equivalent. The cooking zone display area 58 to 61 are each to the side of an associated cooking zone icon display area 58a to 61a arranged, each of the cooking zone icon display areas 58a to 61a symbolizes an associated cooking zone. The cooking zone symbol display areas 58a to 61a are thus also arranged in a 2 × 2 matrix form. The cooking zone symbol display area 58a to 61a also serve as sensor buttons or touch-sensitive displays wherein a user activates one of the cooking zone icon display areas 58a to 61a can activate a setting of parameters for the associated cooking zone. An activated cooking zone symbol display area 58a to 61a can light up accordingly, while the other cooking zone symbol display areas 58a to 61a at least partially darkened.

The stove top 51 also has a timer panel 52 laterally spaced from the cooking zone display areas 58 to 61 and the cooking zone icon display areas 58a to 61a on.

The display of energy consumption values starts as in 9b shown, after one. Disable the hob 51 in that in the timer display area 52 the string "En" is displayed, which indicates an indication of energy consumption. The cooking zone display areas 58 to 61 and the cooking zone icon display areas 58a to 61a are dark or not activated.

The following will, as in 9c shown the cooking zone symbol in the cooking zone symbol display area 59a whose associated (upper left) hob shows the energy consumption for the last switch-on phase. The energy consumption display is made in two horizontally adjacent cooking zone display areas 59 and 60 , where the left cooking zone display area 59 the spaces before the comma and the cooking zone display area 60 indicating the places after the comma. The following may, as in the 9d to 9f shown a respective energy consumption for an associated cooking zone 7a . 7b in the same cooking zone display areas 59 . 60 with correspondingly activated cooking zone symbol display areas 58a to 61a are displayed.

9g shows the display of the cumulated energy consumption for the previous cooking time of the hob 51 where now all cooking zone icon display areas 58a to 61a are activated.

9h shows the display of the total energy consumption, which is identifiable by a user that also all cooking zone symbol display areas 58a to 61a are on or lit, but only an integer value of energy consumption is displayed, for example, only in the upper right cooking zone display area 60 ,

At the conclusion of the power consumption display sequence, the cooking zone display areas become 58 to 61 and the associated cooking zone icon display areas 58a to 61a dark, as in 9i shown.

As in 9j Once again, a display of residual heat in the individual cooking zone display areas is shown 58 to 61 at.

Again, clicking on the separate power icon display area 22 be waived.

Of course, the present invention is not limited to the embodiments shown.

Thus, the ad areas are not limited to use with segment displays. For example, liquid crystal displays can also be used.

LIST OF REFERENCE NUMBERS

1

hob

2

strip

3

Hob cover

4

On / off switch

5a

Sensor button "-"

5b

Sensor button "+"

6

Cooking zone symbol

7a

left lower hob / hob / cooking zone

7b

right lower hob / hob / cooking zone

8th

SENSORswitches

9a

SENSORswitches

9b

SENSORswitches

10

Cooking zone symbol

11a

SENSORswitches

11b

SENSORswitches

12

timer icon

13a

SENSORswitches

13b

SENSORswitches

14

Cooking zone symbol

15a

SENSORswitches

15b

SENSORswitches

16

Cooking zone symbol

17

display area

18

Cooking zone display area

19

Cooking zone display area

20

Cooking zone display area

21

Cooking zone display area

22

Power symbol display area

23

Timer display area

24

square

25

arrowhead

26

arrow

31

hob

33

Hob cover

35a

SENSORswitches

35b

SENSORswitches

42

timer icon

47

Timer activation display area

48

Hob activation button

51

hob

52

Timer display area

58

Cooking zone display area

58a

Cooking zone symbol display area

59

Cooking zone display area

59a

Cooking zone symbol display area

60

Cooking zone display area

60a

Cooking zone symbol display area

61

Cooking zone display area

61a

Cooking zone symbol display area

Claims (14)

Household appliance having a hob ( 1 ; 31 ; 51 ) with at least one cooking zone ( 7a ; 7b ), characterized in that the hob ( 1 ; 31 ; 51 ) is adapted to reduce energy consumption of the at least one cooking zone ( 7a ; 7b ) to determine and display. Domestic appliance according to claim 1, characterized in that the hob ( 1 ; 31 ; 51 ) is adapted to reduce the energy consumption for each of the at least one cooking zone ( 7a ; 7b ) and display each. Domestic appliance according to one of the preceding claims, characterized in that the hob ( 1 ; 31 ; 51 ) is designed to reduce energy consumption of all cooking zones ( 7a ; 7b ) to determine and display. Domestic appliance according to one of the preceding claims, characterized in that the hob ( 1 ; 31 ; 51 ) is adapted to a power consumption during a duty cycle of the hob ( 1 ; 31 ; 51 ) to determine and display. Domestic appliance according to one of the preceding claims, characterized in that the hob ( 1 ; 31 ; 51 ) is adapted to reduce energy consumption for a cooking life ( 1 ; 31 ; 51 ) to determine and display. Domestic appliance according to one of the preceding claims, characterized in that the hob ( 1 ; 31 ; 51 ) for each of the cooking zones ( 7a ; 7b ) a cooking zone display area ( 18 ; 19 ; 20 ; 21 ; 58 ; 59 ; 60 ; 61 ) for indicating at least one cooking stage of this cooking zone ( 7a ; 7b ) and the hob ( 1 ; 31 ; 51 ) is adapted to reduce the energy consumption in the cooking zone display areas ( 18 ; 19 ; 20 ; 21 ; 58 ; 59 ; 60 ; 61 ). Domestic appliance according to claim 6, characterized in that the energy consumption at the same time in several, in particular all, display areas ( 18 ; 19 ; 20 ; 21 ; 58 ; 59 ; 60 ; 61 ) can be displayed. Domestic appliance according to claims 2 and 7, characterized in that the hob ( 1 ; 31 ; 51 ) is adapted to display an indication of the cooking zone display area ( 18 ; 19 ; 20 ; 21 ; 58 ; 59 ; 60 ; 61 ) for the cooking zone ( 7a ; 7b ), whose energy consumption is currently displayed, is different from the indications of the cooking zone display areas ( 18 ; 19 ; 20 ; 21 ; 58 ; 59 ; 60 ; 61 ) for the other cooking zones ( 7a ; 7b ), in particular by - a different brightness, - a different color, - a flashing and / or - a previous display of a predetermined alphanumeric string. Domestic appliance according to claims 2 and 7, characterized in that the hob ( 1 ; 31 ; 51 ) is designed to reduce energy consumption in cooking zone display areas ( 18 ; 19 ; 20 ; 21 ; 58 ; 59 ; 60 ; 61 ), as well as - an associated cooking zone ( 7a ; 7b ) indicating alphanumeric and / or symbolic character string or - the associated cooking zone ( 7a ; 7b ) by means of a symbol ( 14 ; 16 ), the symbol ( 14 ; 16 ) one the cooking zone ( 7a ; 7b ) Identifying position. Domestic appliance according to claim 9, characterized in that the hob ( 1 ; 31 ; 51 ) is adapted to the associated cooking zone ( 7a ; 7b ) identifying string or that the cooking zone ( 7a ; 7b ) identifying symbol ( 14 ; 16 ) in at least one other display area ( 23 ; 52 ), especially in a display area ( 23 ; 52 ) for a timer ( 12 ). Domestic appliance according to claim 9, characterized in that the hob ( 1 ;. 31 ; 51 ) is adapted to the associated cooking zone ( 7a ; 7b ) identifying string or that the cooking zone ( 7a ; 7b ) identifying symbol ( 14 ; 16 ) in at least one cooking zone display area ( 18 ; 19 ; 20 ; 21 ; 58 ; 59 ; 60 ; 61 ). Domestic appliance according to one of the preceding claims, characterized in that the display areas ( 18 ; 19 ; 20 ; 21 ; 58 ; 59 ; 60 ; 61 ) are arranged in a matrix. Method for displaying energy consumption in a domestic appliance, characterized in that the household appliance has a hob ( 1 ; 31 ; 51 ) with at least one cooking zone ( 7a ; 7b ) and due to a switching off of the hob ( 1 ; 31 ; 51 ) energy consumption for each cooking zone ( 7a ; 7b ) individually and / or accumulated for all cooking zones ( 7a ; 7b ) is determined and displayed. A method according to claim 13, characterized in that the method comprises the steps of: (i) initiating a turn-off operation; (ii) darkening at least the cooking zone display areas ( 18 ; 19 ; 20 ; 21 ; 58 ; 59 ; 60 ; 61 ) for a predetermined period of time; (iii) successively displaying the energy consumption of the individual cooking zones ( 7a ; 7b ); (iv) re-darkening at least the cooking zone display areas ( 18 ; 19 ; 20 ; 21 ; 58 ; 59 ; 60 ; 61 ) for a predetermined period of time and (v) displaying the cumulative energy consumption of the cooking zones ( 7a ; 7b ).

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