Abstract: A method for manufacturing a heating device having a carrier and at least one heating conductor applied thereto has the steps: provision of a carrier having a heating conductor side, wherein the carrier consists of aluminum, generation of an anodized layer on the heating conductor side, wherein the anodized layer is applied directly to the carrier and/or its heating conductor side, application of the at least one heating conductor above the anodized layer in a thick-film method. Advantageously, the anodized layer can be manufactured as a hard anodized layer. An additional insulation layer and/or a thickening layer can also be applied to the anodized layer.

Abstract: A washing machine has a rotatable drum and drum drive and a drum container for it, an inlet device to introduce water into the drum onto laundry therein, a pump and water pipes, several temperature sensors on the drum container, a heater for heating water and a washing machine controller connected to everything. Laundry in the drum is moistened with a defined quantity of water, wherein the moisture penetration varies depending on the fiber type of the laundry. Then a predefined quantity of water with a predefined temperature is applied to this laundry. The washing machine controller can deduce the fiber type of the laundry from the way how quickly and to what extent heat is extracted from this quantity of water.

Abstract: A dishwasher has a tub with tub walls and with an outlet, water pipes, valves, a pump, a water inlet into the tub, a dosing module in the tub that has supply compartments for additives and cleaning agents for a cleaning process, wherein the dosing module is designed as a self-contained structural unit independent of the dishwasher and removable therefrom. A control unit is provided for the dishwasher, for the dosing module, for the pump and for the valves. The dosing module has a communication module for communication with the control unit, wherein a planar transmission device having a plurality of L-C-resonant circuits inductively coupled to one another and each with a transmitting coil and a transmitting capacitor is arranged along a tub wall of the tub for transmitting signals and power. The transmission device connects the control unit and the dosing module to one another to permit signal transmission.

Abstract: A washing machine has a drum, a sump underneath the drum, a water circulation including an extractible drawer for introducing detergent or additives, the water circulation being in fluid connection to detecting means for detecting microfibers or contamination in the water and a circulation pump and pipes for circulating water. A method for its operation comprises the steps of branching off an amount of water circulating in the circulation and transporting it to the detecting means for being analyzed and analyzing the water in the detecting means. Depending on the result of this analysis, a filtering process with filtering means for filtering out the microfibers from the water is activated. The microfibers that have been filtered out can be collected and then removed easily from the washing machine.

Abstract: An operating apparatus for an electrical device has a closed transparent control panel, lighting means underneath the control panel in order to shine through, a plurality of holding magnets underneath the control panel and a movable operating element being held magnetically on the front side of the control panel that can be moved with respect to the lighting means and the holding magnets. A plurality of counter-magnets are provided in the operating element for interacting with the holding magnets in order to guide the operating element as an operating movement and hold it on the control panel, wherein sensor means underneath the control panel detect a rotational position of the operating element. The operating element is transparent in a direction from the lighting means to the operating element, wherein, for this purpose, it has a plurality of transparent regions that are separated from one another without transmission between one another.

Abstract: A washing machine has a drum, a sump underneath the drum, a water circulation including an extractible drawer for introducing detergent or additives, the water circulation being in fluid connection to detecting means for detecting microfibers or contamination in the water and a circulation pump and pipes for circulating water. A method for its operation comprises the steps of branching off an amount of water circulating in the circulation and transporting it to the detecting means for being analyzed and analyzing the water in the detecting means. Depending on the result of this analysis, a filtering process with filtering means for filtering out the microfibers from the water is activated. The microfibers that have been filtered out can be collected and then removed easily from the washing machine.

Abstract: A device for the dehumidification of air in a processing space of a dishwasher is connected in an air-conducting manner to the processing space of the electric appliance. The device includes carbon-based fibres, which are designed as a fibre unit. The fibre unit is arranged between the processing space or an air duct connected thereto and at least one dehumidification chamber of the device. The carbon-based fibres absorb moisture from the air of the processing space, which they then release again in the dehumidification chamber. During this process, the carbon-based fibres are moved backwards and forwards between the processing space or air duct and the dehumidification chamber, preferably by slow rotation on a support.

Abstract: An operating apparatus for an electrical device has a closed transparent control panel, lighting means underneath the control panel in order to shine through, a plurality of holding magnets underneath the control panel and a movable operating element being held magnetically on the front side of the control panel that can be moved with respect to the lighting means and the holding magnets. A plurality of counter-magnets are provided in the operating element for interacting with the holding magnets in order to guide the operating element as an operating movement and hold it on the control panel, wherein sensor means underneath the control panel detect a rotational position of the operating element. The operating element is transparent in a direction from the lighting means to the operating element, wherein, for this purpose, it has a plurality of transparent regions that are separated from one another without transmission between one another.

Abstract: A device for the dehumidification of air in a processing space of a dishwasher is connected in an air-conducting manner to the processing space of the electric appliance. The device includes carbon-based fibres, which are designed as a fibre unit. The fibre unit is arranged between the processing space or an air duct connected thereto and at least one dehumidification chamber of the device. The carbon-based fibres absorb moisture from the air of the processing space, which they then release again in the dehumidification chamber. During this process, the carbon-based fibres are moved backwards and forwards between the processing space or air duct and the dehumidification chamber, preferably by slow rotation on a support.

Abstract: A pump device for a water-conducting domestic appliance, such as a washing machine or a dishwasher, has a pump chamber with at least two inlets, and has multiple actuators on or in the pump chamber for a liquid-pumping operation in at least one direction. At least one sensor is provided on or in the pump chamber for determining constituents and properties of the liquid in the pump chamber. A storage chamber is connected to an inlet of the pump chamber and contains additives or analytes for the liquid.

Abstract: A heating device including a support and at least one heating element group on the support has at least one heating element on the support and two connection contacts for the heating element group. The two connection contacts are electrically disconnected from one another and make electrical contact with the single heating element or all of the heating elements of the heating element group for connection to a current supply or as a power connection. An effective width of all of the heating elements within a common heating element group is greater than an effective length of the single heating element or all of the heating elements of this common heating element group between the two connection contacts.

Abstract: A hob has a hob plate and a plurality of heating devices arranged beneath the hob plate, wherein the hob plate is designed such that it transmits light in the wavelength range visible to the human eye. The heating device has an electrical resistance heater arranged on a support with thermal insulation. IR-stimulable material including quantum dots is arranged as an indicator light or lighting means on the resistance heater or on the thermal insulation or on the hob plate. The IR-stimulable material is formed in such a way that it can be excited to output light for the indicator light by excitation light in the IR wavelength range.

Abstract: According to the invention, an improved analysis method for temperature monitoring of a hotplate (11) as a cooker with a temperature sensor (S) may be achieved by means of differentiating once over time and inverting the electronically interrogated temperature signal (T). The result of the inversion is raised to the power of ? to give an output value (A). This output value is used in further processing wherein, in the second processing, the output value is compared with stored values for an output value for defined events. The recording of the output value (A) occurs for a maximum time of up to 300 seconds after starting a cooking process, advantageously 60 to 120 seconds, and then said recording and analysis is terminated.

Abstract: Coatings with left-handed metamaterials (which are man-made materials comprising micro-structures having unusual electro-magnetic properties) are provided around an appliance, such as a hotplate or hob, incorporating induction heating coils that functions as an optical display. In one embodiment, operation of induction heating coils in the cook top alters the optical properties of the metamaterial. Thus, if the metamaterials were previously transparent, they can now become opaque. Doing so changes a display, which can be detected by an operator. This makes it possible to create an automatic operating display for an appliance, such as an induction based hob.

Abstract: According to the invention, an improved analysis method for temperature monitoring of a hotplate (11) as a cooker with a temperature sensor (S) may be achieved by means of differentiating once over time and inverting the electronically interrogated temperature signal (T). The result of the inversion is raised to the power of ? to give an output value (A). This output value is used in further processing wherein, in the second processing, the output value is compared with stored values for an output value for defined events. The recording of the output value (A) occurs for a maximum time of up to 300 seconds after starting a cooking process, advantageously 60 to 120 seconds, and then said recording and analysis is terminated.

Abstract: A temperature sensor is disclosed comprising a sensor element having a temperature-dependent resistance that is enclosed with a tube. In one embodiment, the tube is a quartz glass tube. In another embodiment the temperature sensor is a conventional halogen lamp, designed for use as a light source. The temperature sensor can be advantageously to precisely measure temperatures in a radiant heater, such as that present in a electric cooking appliance.

Abstract: A hob comprising a plurality of radiant heating devices, each of which is further comprised of a support and a heat conductor mounted thereon. An elongate and tubular temperature sensor having a temperature sensitive element in a glass envelope extends along the support and is embedded therein to such a degree so as to project only slightly upwards. Ends of the temperature sensor with connections extend to the edge of the support or even project beyond.

Abstract: A hob comprising a plurality of radiant heating devices, each of which is further comprised of a support and a heat conductor mounted thereon. An elongate and tubular temperature sensor having a temperature sensitive element in a glass envelope extends along the support and is embedded therein to such a degree so as to project only slightly upwards. Ends of the temperature sensor with connections extend to the edge of the support or even project beyond.

Abstract: Coatings with left-handed metamaterials (which are man-made materials comprising micro-structures having unusual electro-magnetic properties) are provided around an appliance, such as a hotplate or hob, incorporating induction heating coils that functions as an optical display. In one embodiment, operation of induction heating coils in the cook top alters the optical properties of the metamaterial. Thus, if the metamaterials were previously transparent, they can now become opaque. Doing so changes a display, which can be detected by an operator. This makes it possible to create an automatic operating display for an appliance, such as an induction based hob.

Abstract: A temperature sensor is disclosed comprising a sensor element having a temperature-dependent resistance that is enclosed with a tube. In one embodiment, the tube is a quartz glass tube. In another embodiment the temperature sensor is a conventional halogen lamp, designed for use as a light source. The temperature sensor can be advantageously to precisely measure temperatures in a radiant heater, such as that present in a electric cooking appliance.