DE102004044704A1 - Indicator device for hob, has displaying units with diodes, which are designed to display different predetermined operating conditions of hob, with different colors in circular form - Google Patents

Abstract

The device has displaying units (8,9) with diodes, which are designed to display different predetermined operating conditions of a hob, with different colors in a circular form. A red and blue diode is provided for indicating a temperature condition and a red and green diode is provided for indicating a failure condition. The units display the color continuously as a color gradient. An independent claim is also included for a method for displaying and operating condition of a household appliance.

Description

The The invention relates to colored display devices for hobs and a method for displaying.

Ceramic glass hobs are known. These hobs are below a temperature change stable Glass ceramic plate heating areas arranged, with the heating areas be formed by electrical heating elements.

such Heating elements can be seen through the translucent glass ceramic cooking surface. Especially can through the glass ceramic cooking surface be detected when these heating elements glow during heating. One Users can thus recognize the actual heating process, from which Hob could pose a burn hazard. Be such hobs however, the cooling off is switched off heating elements after annealing no longer visible, although due to the heat capacity of the materials used and present there is still a considerable heat that is sufficient, serious Cause burns.

Further It is known to display elements such as light-emitting diodes and LCD displays to arrange for the operation of such a cooking surface and / or danger display still existing high temperature. For this it is known red displays or a system with yellow, orange and red light emitting diodes provided.

Further Hobs of Japanese origin are known, which have an LCD display is present, the green, orange and red can be backlit.

The different colors, except for the color red, hereby used today serve exclusively aesthetic aspects. The color red, however, usually shows always dangers.

safety related Information is only about same-colored display elements or symbols in seven-segment displays coded and known. In safety critical situations is the Forcing users to think about what the ad wants to show them. This is in addition to the fact that due to the high degree of technology in kitchens and the many existing devices in kitchens, like cookers, ovens, Microwaves, grills, Cooker hoods, Cooling and freezers as well as bread slicers etc., a flood of information on the User works, whereby the information differs from device to device. For example, can a red flashing light where a device means a hazard while it is with the other device indicates an operation.

Further a user can not over the colors of the operating and Detect fault condition, ie to what extent the device is ready for operation and whether an indication of a possible Error condition exists.

task The invention is to provide display devices that are so it is clear that the user intuitively recognizes a dangerous situation.

The Task is with display devices with the features of the claim 1 solved.

advantageous Further developments are characterized in the dependent claims.

It is still a task, a method for indicating hazards and / or error conditions to create what hazards and / or fault conditions so clearly and simply shows that the viewer intuitively such situations recognizes without having to think.

The The object is achieved by a method having the features of the claim 14 solved.

advantageous Further developments are characterized in the dependent claims.

According to the invention colored and in particular multi-colored displays, in particular for hobs used to different heat conditions and / or different error conditions display.

In order to indicate different heat conditions, according to the invention, in particular a display is used which, depending on the heat, imparts a red, orange or blue color impression. Here, the red color stands for heat, the orange color for heat and a blue color design for cold. For example, the display has a red light, a possibly orangeleuchtendes and possibly a blue light field, which are formed out of particular LEDs. In addition, it is possible to provide a luminous field in which a color change within a single field or along different color fields or segments continuously running precipitates. Common to both embodiments is that an operator, without having to be familiar with the control panel or having to think about the meaning of a display, intuitively recognizes the heat status of the device via the color coding. These color displays, which indicate the temperature condition stepwise or continuously steplessly and in correlation with the heat, can be arranged next to each individual cooking or heating field or adjacent to a corresponding actuating switch or in an extra display field of the hob.

According to the invention such Swatches that are either over have different individual color patches or a single swatch, show error conditions. Here, the color gradient from red to yellow to green and in particular discreet, i. stepped over red to yellow to green respectively. Red here means a safety-critical error state or operating state, yellow a fault condition that is not safety-critical is, and green unlimited Operational readiness.

This means that the user teaches with a color symbolism that gets him out of the daily Life is familiar (red-blue = fire water, red-yellow-green = traffic light colors). This allows him to change the states of the device to capture quickly and safely. It is advantageous that a Significant increase in application safety of ergonomics and of trust in the device and in particular is achieved in a hob.

at an advantageous development of the user through the use supported by symbols or text when evaluating the error state. For example can on the hob or in the hob ever a temperature status display field and an error status indication field, both of these Fields each with a unique symbol (heat = flame, Error = Attention sign (triangle with exclamation point)) become. Furthermore, it is - in particular for users with color vision weaknesses - possible, the individual levels also to be marked with symbols. So can For example, a temperature display panel, which also lights red still in the ad field a big Flame feature. The corresponding orange display box over a small flame and the blue box over no symbol or one the cold symbolizing symbol. For example, when using traffic light colors to indicate error conditions those of pedestrian traffic lights known males (red = standing, green = Walking). Of course, the ads in addition to a color or a symbol and, in particular, and / or temperature intensity faster or blinking more slowly or in different rhythms.

The The invention will be explained by way of example with reference to a drawing. It show:

1 a top view of a hob with temperature and error condition information fields according to the invention;

2 a further embodiment of the arrangement of the fields;

3 another embodiment of the fields;

4 : an example of the arrangement of ads in a display field with additional symbols.

A hob 1 For example, has a flat glass ceramic plate 2 with round hotplates 3 , in the present example four hotplates 3 ,

In the edge area of the plate 2 is also an area of activity 4 available. The field of activity 4 includes for each cooking plate 3 a rotary switch 5 , In the present example, there are thus four rotary switches 5 present, with the rotary switch 5 are formed in a known manner and the cooktops either stepless or with steps. The heating power can operate. In addition, maps are 6 present, which indicate the user via simple symbolism, to which hotplate 3 the respective switch 5 belongs.

There is also a safety and warning field 7 in a side area of the plate 2 , preferably in another side area of the plate 2 intended.

The safety and warning field 7 includes, for example, 2 rows of displays. There are ads 8th , for example, for a device error and ads 9 indicating a temperature condition. Im in 1 example shown are three displays arranged one below the other 8th for faults of the entire appliance and, next to it, three indicators arranged one below the other for the temperature status of one of the hobs 3 arranged. In this embodiment, the user is thus informed that one of the surfaces is possibly in an elevated temperature state and / or the device or device parts have errors.

In a further advantageous embodiment ( 2 ) are also four cooking rings 3 in the glass ceramic plate 2 arranged, the operating field 4 also via four rotary switches 5 features and for each rotary switch 5 a symbol relating to the assignment of the rotary switch 5 is available. Next to each of the rotary switches 5 are display elements 9 for the temperature state, so that in this embodiment, the temperature state of each hotplate 3 adjacent to their rotation switch 5 and the symbolism associated with the disk is arranged. In the safety and warning field 7 are three superimposed error displays 8th present that may indicate an error or normal condition for the entire device.

In a further advantageous embodiment ( 3 ) is placed on a separate safety and warning field 7 waived, the ads 9 for displaying a temperature condition and the fault indications 8th each for a hob 3 next to the respective rotary switch 5 are arranged. Thus, the user becomes the temperature state of each cooking place 3 and the error condition of each cooking place 3 individually displayed.

If symbols are used to indicate a critical temperature condition and / or a device error for color designations ( 4 ), are in a safety and warning field 7 For example, in two columns three temperature displays 9 and three error messages 8th arranged. Within the temperature display, for example, in a display 9a for a high critical temperature a corresponding flame symbol 10a be present and in an ad 9b for a high but not critical temperature a reduced flame sign 10b to be available.

In the display fields 8a . 8b . 8c for a fault condition can be in a field 8a for the display of a critical Fehlerzu stood a symbol 11a that indicates a critical error may be present. In a display field 8b for example, to indicate a fault that does not affect reliability, may have a corresponding smaller or less clear icon 11b to be available.

In the ads 8c . 9c , which each indicate a proper state or no presence of a critical temperature, corresponding symbols 10c . 11c present the user without thinking that the device is in a proper non-critical state.

The character arrangement according to 4 can of course be transferred to the three embodiment, so that the corresponding signals also next to the rotary switches or other locations of the glass ceramic plate 2 are arranged.

In another embodiment (not shown) there is only one display at a time 8th for a critical error condition and only one display at a time 9 for a temperature condition exists. These ads 8th . 9 have colored light elements, which can make the display either stepped in different colors or infinitely variable in different colors.

This can be a single display 8th and a single ad 9 in a safety and warning field 7 be arranged. However, it is also possible to have only one display element 8th and for every rotary switch 5 a display element 9 provided.

Likewise, of course, any cooking surface, ie also each rotary switch 5 one ad each 8th . 9 be assigned.

In a further advantageous embodiment (not shown), the temperature display 9 or the error display 8th also in the form of arranged along a circle lamps or segments of different colors, the colors are, for example, in a non-critical area green (for accuracy) and blue (for no high temperature), and along the circle rising temperature and / or rising Error rate to be displayed with changing colors. In the same way, these temperature profiles can also be displayed along a bar.

at the invention is advantageous that simple and easy for the user create intuitively-to-collect ads that enable them to without a big one Thinking about the dangers of heat or heat or mistakes go out of the device, capture. This results in a significant increase in application security reached. Furthermore, the ergonomics and confidence in the device are increased.

The Invention was based on a hob, especially a hob disclosed with a glass ceramic plate. Nevertheless, the invention is with same success on any form of electrical appliances, especially in the household applicable.

Claims (28)

Display device ( 7 ) for informing an operator of household appliances about the operating state of a household appliance and in particular a hob ( 2 ), wherein the display device ( 7 ) at least one display device ( 8th . 9 ) configured to indicate different predetermined operating conditions with different colors. Apparatus according to claim 1, characterized in that for displaying a temperature state of at least a part of the device and / or a fault condition of at least a part of the device, a display device ( 8th . 9 ) is available. Apparatus according to claim 1 or 2, characterized in that a display device ( 8th ) for displaying the temperature of a part of a Hob ( 1 ) or a hotplate ( 3 ) of a hob ( 1 ) is available. Device according to one of the preceding claims, characterized in that a display device ( 9 ) for indicating a fault condition of a hob and / or a part of a hob ( 1 ) and / or a cooking area ( 3 ) is available. Device according to one of the preceding claims, characterized in that the display device ( 8th . 9 ) has differently colored lighting elements with at least two different colors for the different operating conditions. Device according to one of the preceding claims, characterized characterized in that for indicating a temperature condition at least a red and a blue light element are present. Device according to one of the preceding claims, characterized characterized in that to display a fault condition at least a red and a green Illuminating element are present. Device according to one of the preceding claims, characterized in that a display device ( 8th . 9 ) is designed to display different colors. Device according to one of the preceding claims, characterized in that the display device ( 8th . 9 ) displays the colors continuously as a gradient. Device according to one of the preceding claims, characterized in that the display device ( 8th . 9 ) displays the colors with luminous segments of a circular display or luminous elements of a bar graph. Device according to one of the preceding claims, characterized characterized in that for indicating a temperature condition red, an orange and a blue light element are present or a luminous element is present, which is a red, orange and blue Can reproduce color. Device according to one of the preceding claims, characterized in that a fault condition is indicated by a red, an orange and a green Luminous element (traffic light colors) are present or a single luminous element, which can show the colors red, orange and green. Device according to one of the preceding claims, characterized in that the display devices ( 8th . 9 ) also have symbols that represent the different operating conditions. Method for displaying an operating state of a domestic appliance and in particular of a hob ( 1 ), whereby display devices ( 8th . 9 ) indicate different predetermined operating conditions with different colors and / or symbols. Method according to claim 14, characterized in that in that the operating state is a temperature state and / or a fault state of the device or part of the device is shown. A method according to claim 14 or 15, characterized in that the temperature of a part of a hob ( 1 ) or a hotplate ( 3 ) of a hob or a part of a hob with different colors is displayed. Method according to one of claims 14 to 16, characterized in that a fault condition of a hob ( 1 ) and / or part of a hob ( 1 ) and / or a cooking area ( 3 ) is displayed with different colors. Method according to one of claims 14 to 17, characterized that the different operating conditions with differently colored lighting elements be displayed with at least two different colors. Method according to one of claims 14 to 18, characterized that different temperature conditions at least with a red and a blue luminous element or a single luminous element, which may be red and blue. Method according to one of claims 14 to 19, characterized that a fault condition with a red and a green light element or a single luminous element, which can represent red and green, displayed becomes. Method according to one of claims 14 to 20, characterized that the colors for displaying an operating state stepless are displayed. Method according to one of claims 14 to 21, characterized that the colors with luminous segments of a circular display or lighting elements a bar graph. Method according to one of claims 14 to 22, characterized in that the temperature operating states are shown with the colors red for hot, orange for warm and blue for cold. Method according to one of claims 14 to 23, characterized that the error conditions with the colors red for a critical error, yellow / orange for a non-critical for operational safety Error and green for error-free are displayed. Method according to one of claims 14 to 24, characterized that the operating conditions also displayed with icons. Method according to claim 25, characterized in that that for Temperature operating states as Symbol different flame or fire sizes and different for fault operating conditions size Caution signs are used. Method according to one of the preceding claims, characterized marked that in addition for display with colors and / or symbols the display devices flash. Method according to Claim 27, characterized that the displays faster depending on the error and / or temperature intensity or blinking more slowly or with different rhythms.