DE102011050509A1 - Operating device for adjusting e.g. cooking space temperature in working program of cooking apparatus for cooking food, has actuator comprising over-touch coordinates, where target values are assignable to adjacent coordinates - Google Patents

Abstract

The device has a touch-sensitive actuator arranged on a touch screen and comprising a set of over-touch coordinates of certain setting ranges. The coordinates are associated in accordance with a position curve of two target values, which depend on a working program of a cooking apparatus. The values are assignable to adjacent coordinates. One value is adjustable as a function of resolution and/or sensitivity of the touch screen. Another value is adjustable based on dimension and/or geometry of the actuator. The latter value is assignable as a recommendation or default value. An independent claim is also included for a cooking apparatus.

Description

The present invention relates to an operating device for a cooking appliance for adjusting at least one parameter of at least one operating program of the cooking appliance with at least one touch-sensitive actuator on a touch display, wherein the actuator has a plurality of determined via touch coordinates control ranges, which according to a setpoint curve Values of the parameter are assignable, and a cooking appliance with such an operating device.

Generic operating devices are used regularly, especially in cooking appliances of the canteen kitchen, since there are numerous parameters for performing a work program, in particular in the form of a cooking program to be set by an operator. By way of example, this is based on the DE 10 2008 032 450 A1 Known operating device pointed out, which is also in 1 is shown. This operating device is distributed with a under the trade name SelfCookingCenter ^® (SCC) used cooking appliance and comprises an input display 150 , which in turn has three buttons 151 . 152 and 153 for three modes, vaping, hot air and combination hot air and steam, and two virtual sliders 155 and 156 for setting two parameters of a cooking program. For example, using the slider 155 a relative humidity and over the slider 156 a temperature can be set in a cooking chamber. After selecting a specific cooking program default values of said parameters are optically highlighted in the known control device, namely 60 percent relative humidity and 160 ° C at the in 1 illustrated example. These default values are specified by the manufacturer and can be changed. For example, the virtual slider can be used to change the temperature default value 156 can be touched with a finger, and to magnify the representation of the selectable temperature range can be on a rotary control 160 be rotated, so that then a detailed virtual slider 162 with additional information about the temperature in the cooking compartment on the input display 150 appearing. To 1 the temperature in the cooking chamber can be set in a range between 80 and 220 ° C, while the range around the default value of 160 ° C is optically marked.

In the following, the default value is referred to as the first setpoint value and the other selectable but not preferred values are referred to as second setpoint values. An operator can do this in the area of the virtual slider 162 Touch the bar marked area and move the bar to the left or right to change the first setpoint. The exact assignment of the position of the bar to a new target value is in the DE 10 2008 032 450 A1 not described. However, it is known in the prior art to associate different ranges of a virtual slider on a touch display in response to a predetermined control curve certain target values for a parameter. This is exemplified in the EP 1 273 851 A2 directed. More precisely, there is described a rectilinearly extending control strip with a multiplicity of actuating sections, each of which has one or more touch-sensitive sensors, which operate in particular capacitively, inductively, optically, thermally, piezoelectrically or the like, and whose control values are assigned to a predetermined control curve.

Object of the present invention is to develop the generic control device such that an operator can reliably and easily select certain target values. It should also be possible to be able to dispense with a visual identification of preferred target values.

This object is achieved in that at least one first target value n adjacent touch coordinates can be assigned, and second target values m adjacent touch coordinates can be assigned in each case, to facilitate the setting of the first target value n> m, with n ∈ N and m ∈ N.

It is preferred that m is adjustable as a function of the resolution and / or touch sensitivity of the touch display, and / or m depends on the work program and / or the parameter.

Furthermore, it is proposed that n be adjustable as a function of the number of first nominal values and / or the dimensioning and / or geometry of the actuator, and / or n depends on the work program and / or the parameter.

Preferred operating devices according to the invention are also characterized in that the touch coordinates are determined via pixels of the touch display and / or can be normalized as a function of the work program and / or the parameter.

In addition, it can be provided that each first setpoint value can be determined as a function of the work program and / or the parameter, preferably as a recommendation or default value.

Furthermore, it is proposed that the control curve of the second setpoint values be dependent on the work program and / or the parameter and / or be linear or sectionally linear.

In addition, it is proposed that each first setpoint value is assigned a plateau of the setpoint curve.

It can also be provided that, by determining a first setpoint value in a linear region of the control curve of the second setpoint values, the pitch of the control curve below and above the plateau of the first setpoint value in the control curve for compensating the plateau can be changed in that the initial value and the final value of the range of the control curve remain unchanged due to the arrangement of the plateau.

The invention also proposes that the actuator for setting a parameter in the form of a, in particular straight or curved, slider is shown on the touch display, or the actuator for setting two parameters represents a Bon board on the touch display ,

According to the invention, it can also be provided that each selectable first setpoint value can be displayed on the touch display, for example by visual highlighting.

Further, it is preferred that the at least one parameter is selectable from a group comprising a cooking chamber temperature, a cooking chamber moisture, a core temperature of a food, the power of a heater of the cooking appliance, the speed of a fan device of the cooking appliance and / or a period of time.

The invention also provides a cooking appliance, comprising a cooking chamber, a heating device and a control or regulating device in conjunction with an operating device according to the invention, wherein each first setpoint value is programmable, storable and / or variable.

It can be provided that the operating device can be connected to the control or regulating device and / or can be integrated into the cooking appliance.

The invention is based on the finding that from a large number of possible parameters, for example from a temperature range from 80 to 220 ° C. for a cooking chamber temperature for a specific cooking process, a setpoint value, for example 160 ° C., can be selected in that according to Art of a snap point or snap point, the temperature of 160 ° is assigned a larger range than any other desired values on a virtual slider. If, for example, the other values (second setpoint values) are each assigned five pixels of a linear touch display, then ten pixels can be assigned to the specific setpoint value (first setpoint value) so that it is easier to select. In this case, the setting curve, that is to say the assignment of the pixels to cooking space temperatures, is to be adapted to the plateau of the setting curve resulting from the doubling of the number of pixels for the first setpoint value so that essentially the plateau is compensated for and outside the same the assignment of the pixels of the setpoint Touch display at certain temperature values remains essentially unchanged.

Of course, the invention is not limited to the parameter Garraumtemperatur, but may also include all relevant for a work program of a cooking device further parameters, such as in particular the relative humidity for a cooking process, a power level for controlling a heater, in particular in the form of a microwave source, a fan speed In the case of the use of a blower device as well as a period of time, for example, a specific section of a work program.

The operating device according to the invention facilitates in all cases the setting of a lower setpoint value, which turns out to be a great help especially when several parameter pairs are to be selected in a two-dimensional field, such as in each case a first setpoint value for a temperature and a first Target value for a relative humidity.

The first desired values are usually specified by the manufacturer, but can also be changed at any time in a cooking appliance according to the invention, the changes of course also being storable. So z. B. at the end of the course of a work program that the manufacturer's first predetermined target values do not lead to an individually desired result, so that a change can be performed even after a work program. Experienced operators of cooking devices will be able to perform a change of a first setpoint even before a work program. Thus, it may be necessary for restaurant chains to generally deviate from the manufacturer's specification of the first target values, the corresponding programming has to be done only once and then can be stored in a memory. For example, 50 ° C, 120 ° C, 180 ° C and 220 ° C as well as 30%, 50%, 90% and 100% relative humidity could be deposited as first target values.

Further features and advantages of the invention will become apparent from the following description in which embodiments thereof are explained with reference to schematic drawings. Showing:

1 a known operating device;

2 a first control curve of an actuator of an operating device according to the invention;

3 the control curve of 2 with three first target values; and

4 a second control curve of an actuator of an operating device according to the invention.

In a storage device of a cooking appliance according to the invention (not shown) different control curves of an actuator are stored on a touch display for different work programs depending on the respectively adjustable parameters. For example, a linear control curve can be stored for the parameter of the oven temperature. It can, as in 2 shown, the control curve are shown such that it represents a straight line in a coordinate system whose X-axis through the pixels of the touch display along the actuator in the case of a linear actuator and its Y-axis represents the temperature in degrees Celsius.

In the case of the operating device according to the invention, at least one first setpoint value is programmed as the preferred setpoint value for at least one work program of the cooking appliance for at least one parameter. Thus, for example, a programmed by a cooking program cooking process include three cooking phases, preferably in a first phase, the oven temperature preferably 210 ° C for searing a piece of meat, in a second phase, the oven temperature preferably 160 ° C for cooking and in a third cooking phase, the oven temperature 100 ° C, for example, to reach a core temperature of the meat piece of 80 ° C. In this case, there are thus three first setpoint values in whose ranges the setpoint curve of the 2 Plateaus must have the same adjustment as in 3 shown. An operator is guided, so to speak, to the preferred setpoint values by virtue of the fact that these values can be selected more easily by broadening the respective setting ranges.

Of the 3 can be compared to 2 but also to deduce that regardless of the arrangement and number of plateaus the control curve of the 3 essentially the course of the control curve of 2 follows, in particular the start and end values match. In other words, the three plateaus are compensated by adjusting the slopes in the linear sections.

As an alternative to the in 2 but also a control curve for a cooking process can be stored, which is carried out by itself linear sections, such as in 4 shown. If special target values are to be specified for the corresponding cooking method, then plateaus are in the setting curve of the 4 to arrange, without this being shown graphically. In the arrangement of the plateaus of course, a compensation of the same is to be considered.

Of course, operating devices according to the invention can also rely on non-linear setting curves, wherein it is only essential for the invention that preferred target values be assigned to facilitate setting of the same plateaus. This provides, in particular, a considerable adjustment aid when, for example, two parameters are to be set via the actuator, as in the case of one of EP 2 211 114 A2 known deposit a virtual gift on a ticket board, as determined as a first parameter, for example, the start time of a cooking program represented by a bon and as a second parameter determines the position of the cooking program to be cooked with a cooking chamber having a plurality of cooking zones determined determined are.

The features of the invention disclosed in the preceding description, the claims and drawings may be essential both individually and in any combination for the realization of the invention in its various embodiments.

LIST OF REFERENCE NUMBERS

150

input display

151, 152, 153

button

155, 156

Virtual slider

160

knobs

162

Virtual slider

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008032450 A1 [0002, 0003]
• EP 1273851 A2 [0003]
• EP 2211114 A2 [0031]

Claims (13)

Operating device for a cooking appliance for adjusting at least one parameter of at least one cooking program of the cooking appliance with at least one touch-sensitive actuator on a touch display, wherein the actuator has a plurality of determined via touch coordinates control ranges to which target values of the parameter can be assigned according to a control curve , characterized in that at least one first target value n adjacent touch coordinates are assignable, and second target values are each m adjacent touch coordinates assignable, wherein to facilitate the setting of the first target value n> m, with n ∈ N and m ∈ N. Operating device according to claim 1, characterized in that m is adjustable as a function of the resolution and / or touch sensitivity of the touch display, and / or m depends on the work program and / or the parameter. Operating device according to claim 1 or 2, characterized in that n is adjustable in dependence on the number of first setpoint values and / or the dimensioning and / or geometry of the actuator, and / or n depends on the work program and / or the parameter. Operating device according to one of the preceding claims, characterized in that the touch coordinates are determined via pixels of the touch display and / or are normalizable in dependence on the work program and / or the parameter. Operating device according to one of the preceding claims, characterized in that each first desired value in dependence on the work program and / or the parameter, preferably as a recommendation or default value, can be determined. Operating device according to one of the preceding claims, characterized in that the control curve of the second setpoint values depends on the work program and / or the parameter and / or runs linearly or sectionally linearly. Operating device according to one of the preceding claims, characterized in that each first setpoint value is associated with a plateau of the setpoint curve. Operating device according to claim 6 or 7, characterized in that by determining a first target value in a per se linear range of the control curve of the second target values, the slope of the control curve below and above the plateau of the first target value in the control curve for compensation of the plateau is variable so that the initial value and the end value of the range of the control curve remains unchanged by the arrangement of the plateau. Operating device according to one of the preceding claims, characterized in that the actuator for adjusting a parameter in the form of a, in particular straight or curved, slider is shown on the touch display, or the actuator for setting two parameters a Bon board on the touch Display represents. Operating device according to one of the preceding claims, characterized in that on the touch display each selectable first target values can be displayed, for example by an optical highlighting. Operating device according to one of the preceding claims, characterized in that the at least one parameter is selectable from a group comprising a cooking chamber temperature, a cooking chamber moisture, a core temperature of a food, the power of a heater of the cooking appliance, the speed of a fan device of the cooking appliance and / or a period of time , Cooking appliance, comprising a cooking chamber, a heating device and a control or regulating device in conjunction with an operating device according to one of the preceding claims, characterized in that each first desired value is programmable, storable and / or variable. Cooking appliance according to claim 12, characterized in that the operating device can be connected to the control or regulating device and / or can be integrated into the cooking appliance.

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