Abstract:
An evaporator device for water, which is intended to produce steam for, for example, a steam cooking device, has a container which is closed apart from a water inlet and a steam outlet, and has heating elements on the outside of the container. An inner body is arranged inside the container and is, everywhere on its outer surface, which faces toward the heating element, spaced apart from the inner side of the container. Said inner body is permeable to steam and water and consists of a non-solid material or of a porous material or of a fabric material.
Abstract:
A pump of a dishwasher has an integrated heating element, a pump chamber with an inlet and an outlet, a pump rotor inside the pump chamber and a drive motor, wherein the heating element and a temperature sensor are provided on a wall of the pump chamber. For measuring a calcification of the pump chamber it is filled with water and then the pump rotor rotates for mixing the water in the pump chamber without transporting water out of the pump chamber. The temperature of the water in the pump chamber is measured with the temperature sensor as a starting temperature, and then the heating element is activated to heat the water in the pump chamber while the temperature of the water in the pump chamber is measured. Then the heating element is deactivated and the maximum temperature of the water during the heating duration or directly afterwards is determined. A temperature relation between the maximum temperature and the starting temperature of the water is calculated. These steps are executed in the pump at the very beginning of an operation of the new dishwasher after its installation for determining an initial temperature relation. These steps are automatically executed again at a later stage for determining a later temperature relation to determine the heating efficiency of the pump by comparing the later temperature relation to the initial temperature relation.
Abstract:
A cooking appliance has a cooking plate for the direct preparation of food products thereon and has a heating device thereunder, wherein the heating device runs parallel to the cooking plate and bears at least partially against the bottom side of the cooking plate. The heating device has a flat carrier disc running parallel to the cooking plate, on the bottom side and top side of which carrier disc there are arranged in each case heating means which in each case substantially cover the carrier disc. Both heating means have in each case a multiplicity of heating conductors to cover the bottom side and top side of the carrier disc. The carrier disc may be composed of micanite, and the heating conductors may be thick-film heating conductors.
Abstract:
A device for steam generation has a device housing, a heating chamber for water with a water inlet for connection to a water supply and a steam outlet. A heating element is provided on the heating chamber for heating up and evaporating water therein and has a metallic heating element carrier and heating conductors arranged thereon, preferably as thick-film heating conductors. The heating chamber and the heating element are arranged in the device housing. The heating element forms a wall of the heating chamber and is connected in sealing manner to other walls of the heating chamber. The heating chamber is in one extension direction longer than it is wide and deep in both extension directions vertical thereto. An electrical connection device for the device is provided laterally on an elongated side of the heating chamber on the device housing, in particular projecting laterally from the device housing in order to achieve a flat design.
Abstract:
A heating device comprising a temperature measuring device has a sheet-like carrier, at least one heating conductor on said sheet-like carrier, an elongate electrode on the sheet-like carrier and a layer structure on the carrier with an insulation layer between the heating conductor and the electrode. A measuring apparatus for detecting local high temperatures at the heating device is connected to the electrode and to the heating conductor. Said measuring apparatus detects a temperature-dependent leakage current through the insulation layer between the heating conductor and the electrode and evaluates this as a measure of a local change in temperature at the heating device. The electrode consists of a material with a temperature dependence of its electrical resistance of between 0.0005/° C. and 0.01/° C. in a temperature range of between 0° C. and 200° C. A temperature measuring device is connected to the electrode for the purpose of measuring a temperature at the electrode using the temperature dependence of the electrical resistance of the electrode.
Abstract:
A heating device for heating water has a carrier to which at least one heating element is applied, the heating element having one or more heating conductors which are connected one behind the other. The heating device has a flat dielectric layer which substantially covers the heating conductors or the heating element. An electrically conductive connection area is in each case provided on both sides of the dielectric layer with the same coverage. At least one of the connection areas is connected to a controller for evaluating a leakage current as current flows through the dielectric layer, and the heating element is connected to measuring means for monitoring a heating conductor current through the heating element. Both the leakage current and the heating conductor current are monitored over time and faults can be identified if there are conspicuous changes.
Abstract:
A heating device for evaporating liquids for an electric cooking appliance, having a container for the liquid, which container is higher than it is wide, wherein heating elements are distributed over the surface area of the outside of a lateral container wall and a plurality of temperature sensors are provided. There are at least three separate and separately operable heating circuits, wherein each heating circuit has at least one heating element. The plurality of temperature sensors are provided in the form of two types, wherein a first type are discrete components which are mounted on the outside of the container wall, and wherein a second type is fitted in the form of a surface-area coating to the outer face of the container wall.
Abstract:
A pump of a dishwasher has an integrated heating element, a pump chamber with an inlet and an outlet, a pump rotor inside the pump chamber and a drive motor, wherein the heating element and a temperature sensor are provided on a wall of the pump chamber. For measuring a calcification of the pump chamber it is filled with water and then the pump rotor rotates for mixing the water in the pump chamber without transporting water out of the pump chamber. The temperature of the water in the pump chamber is measured with the temperature sensor as a starting temperature, and then the heating element is activated to heat the water in the pump chamber while the temperature of the water in the pump chamber is measured. Then the heating element is deactivated and the maximum temperature of the water during the heating duration or directly afterwards is determined. A temperature relation between the maximum temperature and the starting temperature of the water is calculated. These steps are executed in the pump at the very beginning of an operation of the new dishwasher after its installation for determining an initial temperature relation. These steps are automatically executed again at a later stage for determining a later temperature relation to determine the heating efficiency of the pump by comparing the later temperature relation to the initial temperature relation.
Abstract:
The invention relates to a heating device having a flat expanded support and at least one heating conductor assembly thereon which is electrically connected by means of two connection contacts. The heating conductor assembly has a plurality of heating conductors which are connected together at connection points and are wired as a whole so as to form parallel and series circuits between the connection contacts. The plurality of heating conductors are advantageously designed as a lattice, wherein every set of four heating conductors forms a closed mesh, and four heating conductors are connected together at the connection points. The heating conductor assembly is applied onto the support with a film construction in a film method, advantageously a thick-film method.
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.