An operating device for an electrical appliance such as an oven has a control panel with a front face and with a rear face, and a rotary control unit on the rear face of the panel, which has a rotary shaft which protrudes through a panel opening beyond the front face of the control panel and supports a control knob there. The rotary control unit has a light source, wherein an annular light guiding device is arranged in the panel opening which extends to behind the panel opening as far as the light source. The light guiding device is made of light guiding material and completely surrounds the rotary shaft. Illuminated areas made of light guiding material are provided in the control knob, and extend from a rear face of the control knob close to the light guiding device to a lateral face and/or front face of the control knob. Light can thus be passed easily through the panel to the control knob.
A gas burner for caravans, boats or vehicles in general includes an injector holder to be applied in correspondence with an opening intended to be made in a hob of a caravan, boat or vehicle in general. The injector holder includes at least one injector connected to at least one gas inlet. The burner also includes a flame spreader which is positioned above the injector holder and includes at least one duct in fluid communication with the injector and with at least one distribution chamber of the combustible mixture, to generate at least one crown of flames. The burner further includes: a lid, resting on said flame spreader, delimiting the distribution chamber of the combustible mixture at the top; locking means to prevent or limit movement between the flame spreader and the lid and means for magnetically connecting the injector holder with the flame spreader and/or the lid.
F23D 14/06 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
A detergent dispenser for a washing machine, in which laundry detergents and additives are mixed with water and conveyed onward into a drum of the washing machine, has a receptacle with a plurality of receiving chambers as a pull-out drawer. A first receiving chamber has a chamber outlet at the bottom and is open at the top, wherein the other receiving chambers are closed at the bottom and open at the top. A planar dispenser cover is arranged above the receptacle and has an internal volume with water channels separate from one another therein. A plurality of water channels are routed to a lateral outer side of the dispenser cover where they form channel openings, wherein a plurality of water channels are brought together in the dispenser cover. A water drain channel has an outlet opening above the first receiving chamber. Metering pumps are arranged at the channel openings on the lateral outer side. A water supply channel leads from this channel opening to a receiving chamber closed at the bottom, wherein the water drain channel in the dispenser cover leads from a channel opening to the metering pump into the first receiving chamber.
D06F 33/37 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
A gas burner for a hob includes: an injector holder, a base that can be positioned on the injector holder, a lid that can be positioned on the base. The lid, the base and the injector holder are superposed along a direction. The injector holder includes: at least one injector arranged so as to be aligned substantially along the Z direction, at least one concave support body which internally delimits a cavity in which a corresponding injector is mounted, and one and only gas inlet which is in fluid communication with said at least one injector. The base and the lid have a substantially elongated shape along an X direction, the extension along the X direction being greater than the extension along a Y direction where the X and Y directions are perpendicular both to each other and to the Z-direction.
F23D 14/06 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
A hydraulic device has rotatable hydraulic means such as a valve actuator or a peristaltic pump, an electric motor as a drive unit, and a gear unit between the drive unit and the hydraulic means, wherein the hydraulic means has at least two water-using ports. In accordance with the invention, the drive unit, the hydraulic means and the gear unit are designed as single function units and are detachably connected to one another as a complete function unit in the form of the hydraulic device. The detachable connection is advantageously achieved by means of screws.
A component of a gas burner or an item to be placed over and/or in proximity of a gas burner, includes a core of fused silica glass and at least one coating comprising an electric conductive material.
F23D 14/06 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
The invention relates to a system (100), comprising: —a device (1) for wirelessly transferring energy in the direction of an electrical load (2) by means of inductive coupling, —an electrical load (2), —a placement surface (3), on which the electrical load (2) is to be placed as intended for the operation of the system (100), —a useful surface (4) adjacent to the placement surface (3), —a displacement sensor (5) for determining whether or not the electrical load (2) is displaced beyond a critical amount in the direction of the useful surface (4), and—a control unit (6) coupled to the displacement sensor (5) and designed to limit or to interrupt the transfer of energy in the direction of the electrical load (2) if the electrical load (2) is displaced beyond the critical amount in the direction of the useful surface (4).
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
8.
CIRCUIT SYSTEM AND METHOD FOR OPERATING A CIRCUIT SYSTEM
A circuit system for transferring signals or energy from a DC-side to an AC-side comprises a full bridge rectifier having an AC-side and a DC-side with two pairs of diodes connected in parallel, each pair of diodes comprising a lower diode and an upper diode connected in series. A load resistor is provided with one of its ends being connected to the AC-side of the full bridge rectifier between one of the pairs of diodes, and the other end being connected to an auxiliary DC-voltage source having a ground potential. A voltage signal generating means generates a voltage signal to be supplied by the auxiliary DC-voltage source to the load resistor in accordance to signals or to an amount of energy to be transferred to the AC-side or from the AC-side to the DC-side of the full bridge rectifier. A voltage signal evaluating means extracts the signals or the amount of energy from the voltage at the load resistor during a predetermined time interval when the lower diode connected to the load resistor is in a conducting state such that the AC-side and the DC-side temporarily have the same ground potential.
H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 1/088 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
A motor for a pump has a stator, a rotor with a front and a rear end, and a rotor bearing arrangement for the rotor, the rotor bearing arrangement having a rear bearing receptacle for the rear end of the rotor, and a motor cover on the rear bearing receptacle. The motor cover is connected form-lockingly with the rear bearing receptacle against movement in the axial direction of the motor away from the motor by way of a latching connection with latching projections on the bearing receptacle and elastic resilient latching arms on the motor cover, each of which interacts with one of the latching projections as a latching connection. The resilient latching arms are integrally connected to the motor cover in a region spaced by between 70% and 90% of the radial extent of the motor cover from the longitudinal center axis of the rotor, wherein they are elongate and are elastically movable in at least one direction.
The present disclosure relates to a washing machine control unit configured to control components of a washing machine to perform a dedicated washing cycle specifically adapted to reduce detachment of microfibres. The washing machine control unit comprises a processor, a component interface configured to be connected with at least one component of the washing machine and to transmit a control signal to the at least one component, and a memory configured to store processor-executable instructions. The processor, when executing the processor-executable instructions stored in the memory, is configured to receive a user input to apply the dedicated washing cycle specifically adapted to reduce detachment of microfibres, and configure the component interface to transmit control signals to the at least one component to perform the dedicated washing cycle.
D06F 33/36 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
D06F 33/34 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
D06F 33/38 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of rinsing
D06F 33/40 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
D06F 34/04 - Signal transfer or data transmission arrangements
D06F 101/20 - Operation modes, e.g. delicate laundry washing programs, service modes or refreshment cycles
D06F 105/52 - Changing sequence of operational stepsCarrying out additional operational stepsModifying operational steps, e.g. by extending duration of steps
11.
Method and apparatus for reducing detachment of microfibres from garment in a washing machine
The present disclosure relates to a method for reducing detachment of microfibres from garment in a washing cycle of a washing machine (100). The method comprises receiving (312) a fabric type user input specifying a type of fabric of the garment placed in the washing machine, determining (332) a type of fabric of the garment in the washing machine, calculating (352) a risk level based on the fabric type user input and the determined type of fabric, the risk level indicating a risk that microfibres can be detached from the garment during the washing cycle, and if the risk level is determined to be high, outputting (376) information indicating to perform a dedicated washing cycle specifically adapted to reduce detachment of microfibres. The present disclosure further relates to a washing system, a mobile terminal, and a washing machine, each configured to perform the method.
D06F 33/34 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
A heating means installed in a pump for heating water during pumping has a tubular cylindrical holder that defines a heating chamber for the water. On the outside of the holder, a plurality of heating conductor tracks are connected together in series. The heating means is configured for operation of the pump in the horizontal state, such that its longitudinal axis extends horizontally. In this horizontal state, the heating means has a residual water level as a horizontal plane that lies roughly in the lower third. Apart from two heating conductor tracks, the heating conductor tracks extend below this residual water level, while said two heating conductor tracks extend above the residual water level. In the absence of cooling water on the inner surface of the heating chamber, they can overheat more quickly and be locally destroyed as an emergency safety device before the entire heating means is at risk of overheating.
F24H 1/10 - Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
F04D 1/00 - Radial-flow pumps, e.g. centrifugal pumpsHelico-centrifugal pumps
F04D 29/42 - CasingsConnections for working fluid for radial or helico-centrifugal pumps
F04D 29/58 - CoolingHeatingDiminishing heat transfer
F24H 15/132 - Preventing the operation of water heaters with low water levels, e.g. dry-firing
A sensor device for a cooktop has a sensor element and a retaining means therefor of plastics material, wherein the retaining means has an upper retaining region in which the sensor element is held precisely in position and has a fastening portion connected to the retaining region. The fastening portion protrudes at right angles from a longitudinal direction of the retaining region and has fastening projections and fastening recesses for form-locking fastening of the sensor device in the outer region of a heating means of the cooktop. The at least one fastening projection protrudes laterally for engagement in the heating means, in order to be fastened thereto.
Method of operating an apparatus for wirelessly transmitting electrical power in the direction of an electrical consumer by means of inductive coupling, wherein the apparatus comprises:
a rectifier for generating a DC Voltage based on an alternating mains voltage,
an inverter being supplied by the DC voltage, the inverter being adapted to generate a pulse width modulated control signal, and
a transmitter coil being supplied with the pulse width modulated control signal, wherein the transmitter coil is adapted to generate an alternating magnetic field being used to wirelessly transmit the electrical power in the direction of the electrical consumer,
the method comprising the steps:
determining a first characteristic frequency f0_1 of an oscillating circuit comprising the transmitter coil, while the electrical consumer is not inductively coupled to the transmitter coil,
determining a second characteristic frequency f0_2 of the oscillating circuit comprising the transmitter coil, while the electrical consumer is inductively coupled to the transmitter coil and an electrical load of the electrical consumer is deactivated, and
operating the apparatus depending on a frequency difference Δfc=f0_1−f0_2.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
An oven has a muffle with a muffle upper side and a muffle ceiling and with a door. A radiant heating device is arranged on the muffle upper side or muffle ceiling, and extends in a surface area parallel to the muffle upper side and has a radiation direction downwards. Furthermore, a top heating device is arranged on the muffle upper side, which extends around the radiant heating device. The radiant heating device has a cover into the muffle or is covered thereby, wherein the cover is planar and closed, and is permeable for the heat radiating from the radiant heating device. The cover covers the radiant heating device, wherein the top heating device surrounds the radiant heating device or extends outside of it.
The invention relates to a dispensing apparatus for adding additives for a washing machine and to a washing machine with such a dispensing apparatus. The dispensing apparatus has a main line along which liquid flows in a direction of flow with an inlet and an outlet. The dispensing apparatus has at least one arcuate line, wherein the arcuate line departs from the main line at an inlet opening and rejoins the main line at an outlet opening. The arcuate line is longer than the main line between the inlet opening and the outlet opening. At least one controllable dispensing device is provided on each arcuate line, which dispensing device is fluidically connected via a dispensing line to the arcuate line and via a supply line to a tank for additives.
The invention relates to a mixing apparatus (1) with a main line (3), in which a liquid (F) flows along a direction of flow (FR), and a secondary line (9). The main line (3) has an inlet (4), an outlet (5) for discharging the liquid (F) conducted through the main line (3), and a three-way valve (8) at a beginning (6) and at an end (7). The secondary line (9) is connected via the three-way valves (8) to the main line (3) and, together with the main line (3), forms a mixing circuit (MKL). The liquid (F) can be pumped with a pump (11) through the main line (3) and through the secondary line (9) in the mixing circuit (MKL). In addition, at least one additive inlet opening (26) is provided on the main line (3) for adding an additive into a mixing zone (M) of the main line (3). The mixing apparatus (1) furthermore has at least one swirling means (13) in the main line (3). The invention moreover relates to a washing machine having such a mixing apparatus (1) and to a method for intermixing an additive with a liquid (F).
F16K 11/10 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with two or more closure members not moving as a unit
18.
METHOD FOR OPERATING A WASHING MACHINE AND WASHING MACHINE
In a method for operating a washing machine, a defined degree of wetting of items of laundry in the drum is required. This degree is brought about in determinable manner by alternately wetting the items of laundry in the drum from below and from above. At intervals, the items of laundry can be tumbled together or loosened up by rotation of the drum. The volume of water absorbed by the items of laundry can be determined by determining the total volume of water admitted into the washing machine and making a comparison with the volume of water not absorbed by the items of laundry. This absorbed water is assumed to be uniformly distributed within the items of laundry and a level of drenching or degree of wetting of the items of laundry can accordingly be determined. In this way, subsequent washing processes can be carried out in a more defined and overall better way.
D06F 33/37 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of metering of detergents or additives
D06F 33/40 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
D06F 39/08 - Liquid supply or discharge arrangements
D06F 103/04 - Quantity, e.g. weight or variation of weight
In a method for operating a washing machine with a drum, a drive motor for the drum, a power supply for the drive motor and a washing machine control monitoring and detecting the motor current by means of the power supply, the following steps are performed where the motor current is constantly monitored while the drum rotates for at least three full revolutions. A full revolution of the drum is divided into three rotation sections of equal size, and the motor current is monitored and recorded for each of the rotation sections. An envelope curve of this motor current is calculated, and therefrom the standard deviation is calculated. The standard deviation is divided by the mean value of the envelope curve to determine the coefficient of variation for each rotation section. By comparing the determined coefficient of variation for each rotation section with stored values for the coefficient of variation, the behaviour of the laundry items is determined as to whether laundry items slide down the drum inner wall, fall from the drum inner wall or rotate together with the drum. From this behaviour, parameters are determined for a further operation of the washing machine with regard to the treatment of the laundry items.
D06F 34/18 - Condition of the laundry, e.g. nature or weight
D06F 33/36 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
D06F 33/40 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
D06F 33/48 - Preventing or reducing imbalance or noise
A switching device for an electrical appliance has a housing and an adjustably designed switch therein that operates cyclically. An adjusting device for setting a different cycle behavior of the switch is provided that acts mechanically on the switch. It has a rotary shaft with a varying contour device that has along the circumferential direction a varying contour. An electrothermic tripping device is provided for the switch and has a heating element and two electrical connections thereto. At least one connection has two disconnectable connecting contacts in the current path of the connection. The switching device has a disconnector which acts mechanically on one of the connections of the tripping device in order to disconnect its two connecting contacts. The disconnector can be moved in a disconnecting rotary angle range of the rotary shaft by the contour device, in order to disconnect the connecting contacts in the disconnecting rotary angle range, and otherwise not.
In a method for establishing a coupling or radio link between a cooktop as domestic device and a mobile telephone as external device by radio link, the process proceeds via the operating means on the domestic device. During the process, an operator, by operation on a cooktop operating means, is offered a choice between different types of external device, the device types being subdivided into a plurality of groups, wherein they differ according to technical complexity and input and output possibilities. Depending on information transmitted by the external device to the radio link means, different verification routines for the radio link or coupling proceed in the device controller. A plurality of lists are stored in the device controller, in which lists coupled external devices are saved, wherein a separate list is saved for each of the groups of external devices.
A washing machine in the form of a water-guiding domestic appliance has a water tank with a drum as treatment compartment therein, wherein the water tank has an outflow at the bottom. The washing machine also has a pump, a filter between the outflow and the pump and a water-guiding system with water lines, valves, the pump and the filter. A flexible or bendable flex line adjoins the outflow, which line extends at an angle of between 15° and 0° to the vertical from the outflow at the bottom, wherein a substantially horizontally extending telescopic line of variable length, which leads to the filter, adjoins the flex line. A drain valve, which may be configured as an actively closable valve or as a nonreturn valve, is arranged between the telescopic line and the filter. The filter is in turn arranged at a short distance downstream of the drain valve.
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.
In a method of operating a washing machine, different values for the power required by a drive motor of a drum of the washing machine to accelerate the drum from 30 rpm to 80 rpm are measured and stored as reference values. They can be differentiated by weight or load of laundry, potentially also by different types of laundry. These values are then compared to values derived from an actual washing or dry-spinning process, respectively. As a result of this comparison, it can be determined which values actually measured correspond sufficiently to stored values, and then the load can be determined from this result.
A water bearing appliance, control method, and system are provided. Operating data from appliances are transmitted to a receiver over a network such as the Internet. Maintenance, cleaning, and repairs are initiated based on the operating data, and can be triggered remotely and automatically. A machine learning model(s) is trained according to operating conditions of various appliances and respective outcomes, such as maintenance, repairs, damages, life expectancy, and/or the like, to learn correlations therebetween. A digital twin appliance data object is generated for an appliance and applied to the machine learning model(s) to provide a predictive maintenance data object. Cleaning regimens, maintenance, repairs, and/or the like are configured to particular operating circumstances of an appliance.
wherein, in a second operating mode, the inverter is configured to generate the pulse-width-modulated drive signal (AS) for measurement purposes depending on a measurement voltage (UM), wherein the DC voltage (UG) is greater than the measurement voltage (UM) during the second operating mode.
A washing machine comprises a rotatable drum for receiving laundry, a drive motor for the drum, a drive control for the drive motor and a washing machine control, the washing machine control being connected to the drive control. In a method of operating the washing machine for dry-spinning laundry at different and increasing speeds, wherein a certain speed is kept constant for a certain time in the manner of speed steps, the drum is at first rotated at a certain constant speed for spinning the laundry. The drive control monitors the motor current and records the variation over time of the motor current as well as an envelope curve of the motor current and an average of this envelope. The envelope of the motor current or its average is derived once after the time. As soon as the first derivative of the envelope or the average falls below a certain predetermined threshold value or becomes zero, the condition is defined that the spun laundry in the drum no longer loses any or sufficient water. Then the rotational speed of the drum is increased to a higher rotational speed, until the first derivative again falls below a certain predetermined threshold value or becomes zero.
D06F 33/40 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
D06F 23/02 - Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and rotating or oscillating about a horizontal axis
D06F 37/06 - Ribs, lifters, or rubbing means forming part of the receptacle
A washing machine has a drum-receiving container with a round drum therein, wherein the inner shape of the drum-receiving container is not round cylindrical. The drum accordingly has a radial distance along the circumferential direction thereof from the drum-receiving container, wherein the latter is configured such that this distance continuously varies in places and/or has no discontinuity. The distance is smaller in the uppermost region of the drum than at the mid-vertical height of the drum, and the distance is at its greatest in a lower region of the drum between a lowermost point of drum and one third of the vertical height of the drum. At the lowermost region, a breakaway edge may be formed below the drum to enable removal of externally adhering water.
A washing machine has a drum for washing laundry therein, and a drum-receiving container in which the drum is arranged rotatably about an axis of rotation and at the bottom of which is provided a container drain. A valve is arranged at the container drain on the drum-receiving container, which valve seals the drum-receiving container at the bottom in watertight and airtight manner. In the upper region of the drum-receiving container is provided an air inlet which is closable in airtight manner by way of an air inlet valve and by way of two oppositely arranged nonreturn valves.
A cooktop with an operating means with operating elements with capacitive sensor elements has a control means which is configured to provide a wipe protection function which is activatable and deactivatable by an operator. Said function ensures that, after the activation thereof, sensor signals from the sensor element means are not converted into operating commands by the operating means. The wipe protection function is only automatically deactivated again by the operating means if, after the activation thereof, a predetermined waiting period of 0 sec to 20 sec has elapsed since the last detection of an operation on at least one of the sensor element means or since the last receipt of a sensor signal from at least one of the sensor element means without renewed detection of operation or receipt of a sensor signal.
A washing machine has a drum-receiving container and a rotatable drum therein and a water routing system which has a water inlet from an external water supply into the washing machine, water lines and valves, as well as a water outlet from the washing machine. An injection device for water into the drum, a container outlet at the bottom of the drum-receiving container, a pump, a filter and a washing machine controller are provided. The water routing system drive has an adjustable pressure-reducing device arranged between, on the one hand, the water inlet into the washing machine and, on the other hand, the pump and/or the injection device. The pressure-reducing device is connected, for adjustment, to the washing machine controller.
D06F 39/08 - Liquid supply or discharge arrangements
D06F 23/02 - Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and rotating or oscillating about a horizontal axis
D06F 33/42 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of draining
D06F 33/34 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
D06F 34/22 - Condition of the washing liquid, e.g. turbidity
D06F 39/02 - Devices for adding soap or other washing agents
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.
H05B 3/10 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
C25D 11/04 - Anodisation of aluminium or alloys based thereon
C23C 28/04 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and only coatings of inorganic non-metallic material
33.
Induction Cooktop Comprising A Support Structure Having Antennas And/Or Sensors, Method For Producing A Support Structure Of This Kind, And Use Of A Support Structure For An Induction Cooktop
An induction cooktop comprising a cooktop plate and a planar and flat support structure has a flexible woven fabric as a support on which antennas and/or sensors are mounted as lines by means of embroidering processes. The antennas and/or sensors have feed lines, which are mounted and/or secured on the support by means of embroidering processes and cross one another and other lines on the same surface of the support, wherein they are electrically insulated from one another. The support structure has a thermal stability of ≥200° C. It is arranged on a planar and flat retainer and, together with antennas and/or sensors, is pressed against an underside of the cooktop plate by said retainer.
In order to operate an induction cooktop with a cooktop plate, at least two induction heating coils thereunder, a cooktop controller, and a power unit for supplying power to the induction heating coils, the two induction heating coils are jointly supplied with power and operated with in each case one power density spectrum with precisely one maximum. In a first operating mode, the power density spectra are measured and it is established how their respective maxima are located relative one another, and the sum thereof is formed. The difference in power density between a local minimum of the sum, which is located between the two maxima of the sum, and the two maxima of the sum is then reduced. To this end, the switch-on time and/or the switch-off time of at least one of the circuit-breakers is varied in order to actively modify the power density spectrum of the power supply.
In a method for operating a cooktop having a cooktop plate and adjacent heating means arranged thereunder along a straight line, and a pan detection means for detecting a relative coverage of each heating means by cooking vessels placed thereover, it is detected in a preceding step over which of the heating means a cooking vessel has been placed and thus that a relative coverage is present. In a subsequent step, the pan detection means is used to detect how great is the relative coverage of each covered heating means, and from this result and a comparison of these results for each heating means a case analysis is performed into one of several cases. For a 1st case, in which it is detected for the three heating means arranged along the straight line, that the relative coverage of the middle heating means is less than the relative coverage of the other two adjacent heating means, it is determined that no cooking vessel has been placed over the three heating means which contiguously covers all three heating means, but rather that at least two cooking vessels have been placed over the three heating means.
A method is provided for operating a device for wireless transfer of energy in the direction of an electrical consumer via inductive coupling. The method involves sequentially carrying out a power transfer, a data exchange, a measurement of setup parameters, and a measurement of a resonance frequency, wherein during the power transfer, an electrical actual power emitted by an inverter is regulated to a predetermined electrical setpoint value, wherein during the data exchange, data are exchanged between the device and the electrical consumer via a communication unit, wherein during the measurement of the setup parameters, objects possibly arranged over a power coil are detected, wherein during the measurement of the resonance frequency, a resonance frequency of a resonant circuit having the power coil is ascertained, and wherein the measurement of the resonance frequency is executed immediately before or immediately after the measurement of the setup parameters or the data exchange.
H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
A method for operating a system having a device for the wireless transmission of energy to an electrical consumer by means of inductive coupling, and an electrical consumer, wherein the device has: a rectifier for generating a DC voltage from a line voltage, an inverter which is fed from the DC voltage and designed to generate a pulse-width-modulated activation signal, a power coil activated by the pulse-width-modulated activation signal, by means of which an alternating magnetic field can be generated to transmit the energy, a communication device designed to exchange data bi-directionally with the electrical consumer, and a regulator designed to regulate a power output by the inverter to a predetermined setpoint, and wherein the electrical consumer has: a switching device for changing the load impedance of the electrical consumer, and a communication device designed to exchange data bi-directionally with the device, wherein the method comprises the steps: synchronizing the operation of the device and the operation of the electrical consumer in such a way that, during a change in the load impedance of the electrical consumer, a transition frequency and/or a transition duty cycle of the pulse-width-modulated activation signal is/are set in such a way that voltages and/or currents induced in the electrical consumer do not exceed and/or fall below specified threshold values.
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
38.
HEATING DEVICE AND METHOD OF MANUFACTURING A HEATING DEVICE
A heating device comprises a tubular carrier with an outside and an inside, an insulating layer on the outside of the carrier, heating conductors, conductor tracks, and contact fields on the insulating layer, and a connection device for an electrical connection of the heating device, wherein the connection device has a plurality of metallic contact feet. The connection device is attached at the contact fields with the contact feet and is electrically connected thereto. Additional electrical insulation is arranged between the connection device and the outside of the carrier. This can be, for example, one of several individual insulating layers that together form the entire insulating layer.
A heating device for a hob has a flat carrier having a heating conductor side with heating conductors thereon and a switching device, the switching device having a movable switching contact and a mating contact associated therewith. The switching device has a switching arm movable in itself, said switching arm carries the switching contact and is electrically connected to an electric arm connecting means. The switching arm is fastened on the carrier and is formed from a bimetal strip. The mating contact is electrically connected to an electric mating connection means and fastened on the carrier. Switching arm, switching contact and mating contact are designed and arranged such that when a pre-defined switching temperature is exceeded, the switching contact and the mating contact are brought together, triggering a switching operation as a hot indicator for the hob, by the movement of the switching arm due to increasing heat.
A filter device for a water-bearing domestic appliance has a flow-through filter housing with waste water inlet, filtered water outlet and filtrate outlet, at least one panel filter and a mounting therefor in the filter housing, wherein the panel filter has a mesh width and an angle to the horizontal, and a filtrate chamber in the filter housing for collecting filtrate. The panel filter, the waste water inlet and the filtered water outlet are arranged relative to one another such that a flow direction for water from the waste water inlet to the filtered water outlet passes through the panel filter. The filtrate chamber is accessible via the filtrate outlet for removing the filtrate from the filtrate chamber, in particular by backwashing. The at least one panel filter is variable in shape to change its mesh width, and/or an angle of the at least one panel filter to the horizontal can be altered by movement of the panel filter, in particular rotation.
B01D 29/96 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor in which the filtering elements are moved between filtering operationsParticular measures for removing or replacing the filtering elementsTransport systems for filters
B01D 29/01 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with flat filtering elements
B01D 29/56 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
Method for operating a kitchen appliance (100), the kitchen appliance (100) having:
a rectifier (1) for producing a DC voltage (UG) from a grid voltage (UN),
a first inverter (2) which is powered by the DC voltage (UG) and which is designed to generate a first control signal (AS1) having a first frequency (f1),
a first coil (3) which is controlled by means of the first control signal (AS1) and by means of which an alternating magnetic field is able to be generated for heating a cooking vessel (4) and/or for transferring energy in the direction of an electrical load (5) by means of inductive coupling,
a second inverter (6) which is powered by the DC voltage (UG) and which is designed to generate a second control signal (AS2) having a second frequency (f2), and
a second coil (7) which is controlled by means of the second control signal (AS2) and by means of which an alternating magnetic field is able to be generated for heating a cooking vessel (8) and/or for transferring energy in the direction of an electrical load (9) by means of inductive coupling,
the method having the step of:
controlling the first inverter (2) and the second inverter (6) in such a way that the first frequency (f1) and the second frequency (f2) are dependent on each other.
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.
D06F 23/02 - Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and rotating or oscillating about a horizontal axis
D06F 33/32 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
D06F 34/18 - Condition of the laundry, e.g. nature or weight
D06F 105/10 - Temperature of washing liquidsHeating means therefor
43.
Filter device for a water-bearing domestic appliance, a water-bearing domestic appliance with a filter device and a method for filtering water with a filter device
A filter device for a water-bearing domestic appliance which has a surface filter with a sleeve shape, a support structure for said surface filter and a flow-through filter housing with filter inlet and filter outlet. The surface filter is held stably on the support structure, which has through-flow openings and a central opening at the end. A first flow path for water leads into the support structure and out again through the through-flow openings and the surface filter. A second flow path leads into the support structure and out again only through the central opening. The support structure is designed circumferential and is formed by support ribs which between them comprise the through-flow openings. The surface filter is attached or pressed onto the outside of the support structure in such a way that it covers the through-flow openings and rests on the outside of the support ribs.
B01D 29/96 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor in which the filtering elements are moved between filtering operationsParticular measures for removing or replacing the filtering elementsTransport systems for filters
A47L 15/42 - Washing or rinsing machines for crockery or table-ware Details
B01D 29/23 - Supported filter elements arranged for outward flow filtration
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.
In order to detect on an induction cooktop whether a cooking vessel with an integrated controller or smart functionality is arranged over an induction heating coil, the induction heating coils emit a short individual code. The latter can be detected and evaluated by the cooking vessel such that the cooking vessel emits a signal corresponding to this code which is received by an external operating means or the induction cooktop to locally associate this cooking vessel with this induction heating coil. Transmission or transfer of energy as a code proceeds at a frequency of at least 50 kHz, wherein a code has a plurality of pulse sequences, each of which has at least two pulses.
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.
H05B 3/16 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being mounted on an insulating base
47.
PUMP FOR A WATER-CARRYING HOUSEHOLD APPLIANCE AND WATER-CARRYING HOUSEHOLD APPLIANCE HAVING SUCH A PUMP
An impeller pump for a dishwasher has a pump housing comprising a pump upper portion, pump lower portion and pump outer wall in which a pump chamber is arranged. It has a pump inlet into the pump housing and a pump outlet out of the pump housing and a heating device, which forms the pump outer wall, and a pump drive having a drive rotor, a drive stator having a stator winding and a bearing shaft. The bearing shaft is fixedly arranged on the pump housing and the drive rotor is fixedly connected to the drive rotor and they are rotatably arranged on the bearing shaft. The stator winding is arranged on a region of the pump lower portion which adjoins the pump chamber at the other side thereof in an outward radial direction so that between the pump chamber and stator winding only one wall of the pump lower portion extends so that the stator winding is surrounded by the pump chamber in an annular manner. It can thus be effectively cooled by water in the pump chamber.
a second substantially horizontal venturi duct to which a second injector, the second venturi duct is in fluid communication with a zone communicating fluidly with at least one passage provided in said circular internal portion for generating at least one simmering flame.
F23D 14/06 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
49.
Method for operating an apparatus for wirelessly transferring energy in the direction of an electrical consumer by means of inductive coupling, apparatus and system
h) repeating steps d) to g) with increasing adjustment target power until a deviation between the target power and the actual power falls below a predefined threshold.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
50.
Method for actuating a heating device of a hob, and hob
A hob plate above a radiant heating device and a safety temperature limiter between said radiant heating device and hob plate, which safety temperature limiter is designed to deactivate the radiant heating device when a switch-off temperature is reached. To actuate the radiant heating device, a cooking vessel is first placed on the hob plate above the radiant heating device and then the radiant heating device is activated and at the same time detection of a first switch-on time starts. When a switch-off temperature is reached at the safety temperature limiter, the radiant heating device is deactivated by said safety temperature limiter. The first switch-on time that has elapsed up to that point between activation and deactivation of the radiant heating device is detected and compared with a predefined limit switch-on time. If the first switch-on time lies below the limit switch-on time the radiant heating device is switched off.
In the interests of improved temperature detection and temperature control of a cooking appliance on a hob by means of an induction coil, the cooking appliance has specific and individual identification. This can be contained in an NFC tag, by way of identification means. This identification can be read out on a hob, either by means of the hob itself or by means of a mobile telephone, and transferred to a database in an Internet cloud storage facility. From the latter, specific characteristics for this cooking appliance can be downloaded and employed for a temperature-controlled heating of the cooking appliance.
H04B 5/00 - Near-field transmission systems, e.g. inductive or capacitive transmission systems
H04B 5/77 - Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
H05B 6/06 - Control, e.g. of temperature, of power
A hob comprises a hob plate, heating devices therebelow and a flat, two-dimensional carrier plate for the heating devices which runs parallel to the hob plate and has an upper face, said carrier plate bearing the heating devices on said upper face and fixedly holding said heating devices in position. Holding means are provided on the upper face of the carrier plate for each heating device. Each heating device has at least one laterally protruding holding tab, wherein each holding tab has latching means and the holding means have counter latching means for a latching connection with these latching means. The latching connection has clearance in the direction perpendicular to the surface of the carrier plate. The holding means are fastened to the upper face of the carrier plate with a releasable fastening in the direction perpendicular to the surface of the carrier plate and with a positive connection in the direction parallel to the surface of the carrier plate, wherein the holding tab runs above the carrier plate.
A washing machine has a rotatable drum in a drum-receiving container with an outlet, a pump with integrated heating device, an injector on the drum-receiving container, a water circuit with several water pipes, wherein at least one water pipe runs from the outlet from the drum-receiving container to the pump, and at least one water pipe runs from the pump to the injector, and a water reservoir between the outlet and pump which is connected to the water pipe from the outlet to the pump. An outlet valve is provided in the water pipe from the outlet from the drum-receiving container to the pump. A pump valve is also provided which is connected to a water pipe with a pump outlet and has an output to a water outlet from the washing machine.
D06F 33/46 - Control of the energy or water consumption
D06F 33/34 - Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of water filling
A hob has a hob plate for putting a pan having a remote communication device thereon and multiple heating devices under said hob plate, a hob controller and a main communication device having a transmitter and a receiver for communicating with the pan to measure a distance between itself and the remote communication device. Said main communication device belongs to the hob controller and is designed to use a Bluetooth communication protocol and to receive an individual identifier of the remote communication device and to store the latter in the hob controller. The hob and the main communication device are switched on and a pan having a remote communication device is put onto the hob plate, this being detected. The distance between the main communication device and the remote communication device of the pan is then measured, and the pan position of the pan on the hob is thus determined. This pan position is stored along with the individual identifier of the remote communication device in the hob controller.
H04W 4/029 - Location-based management or tracking services
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
55.
Cooktop and method for operating a cooktop and use of a cooktop for illuminating a space
A cooktop is designed to be operated either in a cooking operation or in a lighting operation, with the modes of operation not being able to occur together. Within cooking operation, the cooktop controller controls heating devices of the cooktop and light sources of the cooktop in a cooking lighting mode, wherein a luminosity of the light sources is limited to a cooking luminosity below the maximum luminosity in the process. Within lighting operation, the light sources are not controllable by the cooktop controller but can only be controlled by the light controller in an illumination lighting mode, wherein to this end the light controller receives the corresponding commands for the light sources from an external control apparatus by way of a communications device. In this case, a luminosity of the light sources can be maximal.
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.
A method for operating an induction hob (100), wherein the induction hob (100) comprises: an inverter (1), which is supplied with a supply voltage (US), at least one capacitor (2, 3), and an induction heating coil (4), wherein the at least one capacitor (2, 3) and the induction heating coil (4) are interconnected such that they constitute an oscillating circuit (5), and wherein the inverter (1) is configured to generate a pulse-width modulated excitation voltage (UA) for the oscillating circuit (5) from the supply voltage (US), wherein the method comprises the following steps: a) generation of the pulse-width modulated excitation voltage (UA) having a predefined voltage characteristic, b) measurement of a resulting oscillating circuit current (iS), particularly by means of the induction heating coil (4), c) determination of electrical oscillating circuit parameters, according to the voltage characteristic of the pulse-width modulated excitation voltage (UA) and the measured oscillating circuit current (iS), d) n-times repetition of steps a) to c) using a different voltage characteristic of the excitation voltage (UA) for the determination of electrical voltage characteristic-dependent oscillating circuit parameters, and e) determination of operating variables of the induction hob (100) from voltage characteristic-dependent electrical oscillating circuit parameters.
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.
The invention concerns a cooking system (1) comprising a base module (2) with a drive motor (20) and a drive arm (22), wherein the drive arm (22) has a coupling (21) for releasable connection of a tool (4) to the drive motor (20), and wherein the base module (2) is assigned to a cooking zone (50) of a hob (5), so that the drive arm (22) can be arranged above the cooking zone (50) in order, by means of a tool (4) coupled to the coupling of the drive arm (22), to act on a medium in a container (6) arranged at the cooking zone (50), wherein the base module (2) is arranged on a housing (10), wherein the housing (10) is fitted on the hob (5) so as to be movable in the vertical direction between a stowage position and a usage position, extendable in the horizontal direction, and/or foldable about a pivot axis. The invention furthermore concerns a kitchen appliance with a cooking system (1).
A47J 44/02 - Multi-purpose machines for preparing food with provisions for drive either from top or from bottom, e.g. for separately-driven bowl
A47J 43/044 - Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the top side
A47J 43/06 - Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with a plurality of interchangeable working units
A47J 36/32 - Time-controlled igniting mechanisms or alarm devices
A47J 47/01 - Kitchen containers, stands or the like, not provided for in other groups of this subclassCutting-boards, e.g. for bread with dispensing devices
A47J 43/07 - Parts or details, e.g. mixing tools, whipping tools
60.
Method for heating a cooking vessel on a hob, and hob
A method for heating a cooking vessel on a hob with a plurality of heating devices is described. Each heating device has a heating region in which a cooking vessel can be arranged in order to be heated by the heating device under the control of a power supply. The cooking vessel has a temperature sensor together with an evaluation apparatus and a transmitting apparatus for transmitting an identification and temperature data. A controller controls the heating device in a specific manner and evaluates the received temperature data using a plurality of plausibility checks in order to determine whether said data match the operation of the heating device. If these plausibility checks are passed, the cooking vessel is assigned to the heating device.
A heating device in the form of a radiant heating device for a hob has a sheet-like support with a support top side, with at least one heating element on the support top side, which heating element is highly corrugated and runs in tracks in a laying pattern. The heating element has at least two heating conductor strips which each have lateral sides and a top edge and a bottom edge. These at least two heating conductor strips are placed together or placed on one another by way of their mutually facing lateral sides and are at least partially in contact. The at least two heating conductor strips are connected to one another in a fixed and non-detachable manner, advantageously before corrugation.
In a method for controlling a relay with a relay contact, switching as an opening operation or a closing operation at the relay is temporally captured with respect to accurate opening or closing of the relay contact in comparison with a switching voltage zero crossing of a switching voltage to be switched. An actual switching time is determined and is corrected by means of further capturing of switching operations. A microcontroller is used for this purpose, and the signals can be digitally captured, that is to say at an A/D input.
H01H 9/56 - Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the AC cycle
H01H 47/18 - Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for introducing delay in the operation of the relay
63.
Method of operating a steam generator, steam generator and cooking device
A steam generator has a water container and an upper heating device and a lower heating device, a first temperature detection device covering a temperature detection area including the area covered by the two heating devices, a control device for monitoring and evaluating the first temperature detection device and for controlling the activation state of the two heating devices. For operation of the steam generator, water is filled into the container, at least one of the two heating devices is activated for generating steam for an operation of a steam household device, wherein finally this operation is over. Then at least the lower heating device is activated, until the first temperature detection device detects that a pre-defined first temperature threshold has been reached, upon which the lower heating device is deactivated. Remaining water is pumped off from the water container for a pre-defined first pumping duration.
A steam generator has a water container and an upper heating device and a lower heating device, a first temperature detection device covering a temperature detection area including the area covered by the two heating devices, a control device for monitoring and evaluating the first temperature detection device and for controlling the activation state of the two heating devices. A flat first temperature detection device covers the outside of the container, and a second spot-like temperature sensor is located on the water container in a region of an upper border of the upper heating device. Both temperature detection devices are used to activate and deactivate the two heating devices such that at first the lower heating device is activated to start generating steam as fast as possible.
A sensor element device for an operating device having a luminous display comprises a sensor element for a capacitive touch switch, a light guide for the luminous display, having an input region and an emission region, and light-nontransmissive shielding material which encloses the light guide except for the input region and the emission region. It furthermore comprises a lower side and an upper side, as well as at least one metallic sensor element. The sensor element extends from the lower side to the upper side. The sensor element device forms an integrated module with the light guide, shielding material and sensor element. The sensor element projects as far as a plane of the lower side. No part of the sensor element device protrudes downward.
B23K 26/364 - Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
F24C 7/08 - Arrangement or mounting of control or safety devices
G01D 5/24 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
66.
Water-conducting household appliance and method for operation thereof
A water-conducting household appliance has a closable treatment chamber, in order to treat articles therein, at least one chamber water inlet into the treatment chamber, at least one sump under said treatment chamber, a coarse particle filter for separating coarse particles having a size ≥5 mm from water exiting from the sump, wherein the coarse particle filter has a coarse particle filter inlet, a coarse particle filter water outlet and a coarse particle filtrate outlet. According to the invention, exactly one pump having a pump inlet and a pump outlet is provided for the entire household appliance, said pump being connected downstream of the sump and the coarse particle filter water outlet. Water lines, valve devices and a discharge outlet from the household appliance are also provided, wherein a water line leads from the coarse particle filter water outlet to the pump or to the pump inlet.
A method for controlling an induction coil on an induction hob involves a power generation for a primary power on the induction coil for power transmission to an electrical consumer put onto a cover above the induction coil, which consumer has a receiver coil and an electrical load connected thereto, being adjusted. The induction coil forms a primary-side resonant circuit with a capacitance connected in series, and the induction coil and the receiver coil are coupled in the style of a transformer such that a current in the induction coil induces a voltage in the receiver coil with a flow of current and generation of the secondary power in the load of the electrical consumer. The control means can attempt to adjust the desired secondary power to a steady state using maximum modulation of the voltage effectively applied to the primary-side resonant circuit, as second manipulated variable. The primary power is decreased in a first step by virtue of the voltage effectively applied to the primary-side resonant circuit, as second manipulated variable, being decreased before the operating frequency as first manipulated variable is increased in a second, subsequent step.
H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
A47J 43/046 - Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the bottom side
H02P 13/00 - Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
68.
Washing machine receptacle, washing machine and method for operating a washing machine
A washing machine drawer (50) in a washing machine (11) has a drawer body (51) with several chambers including chambers (63) for filling in detergents or additives for a washing process, sensor means (71, 76, 80) in the receptacle for analyzing water transported to the sensor means and a receptacle communication module (56) for a data connection to the outside. A control device (40) of the washing machine is communicating with the receptacle communication module (56) to receive data about analysis results from the sensors for adapting a washing process. The drawer (50) may be exchangeable to provide the washing machine with more and up to date features. The drawer (50) may also have a receptacle control (54) provided with a powerful controller to overtake some functions of the washing machine (11) besides controlling the sensor means.
D06F 39/02 - Devices for adding soap or other washing agents
D06F 34/22 - Condition of the washing liquid, e.g. turbidity
D06F 33/52 - Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
D06F 39/08 - Liquid supply or discharge arrangements
D06F 34/04 - Signal transfer or data transmission arrangements
D06F 34/05 - Signal transfer or data transmission arrangements for wireless communication between components, e.g. for remote monitoring or control
D06F 34/32 - Arrangements for program selection, e.g. control panels thereforArrangements for indicating program parameters, e.g. the selected program or its progress characterised by graphical features, e.g. touchscreens
D06F 25/00 - Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
69.
Method for operating a washing machine and washing machine
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.
A gas burner for cooking appliances, having overlapping main flame and simmering flame rings, includes an injector holder assembly associated with a first and a second injector and positioned below a cooktop opening; and a head assembly associated at the top with the injector holder assembly and positioned above the cooktop opening, the head assembly having a first chamber communicating with the first injector and with doors for ejecting the gas and primary air mixture supplied to the main flame ring, and a second chamber communicating with the second injector and with a passageway for ejecting the gas and primary air mixture supplied to the simmering flame ring. The second chamber communicates with a through opening in the outer side walls of the head assembly to receive primary air from above the cooktop, and the head assembly completely seals the cooktop opening where the gas burner is to be installed.
F23D 14/06 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
F23L 1/00 - Passages or apertures for delivering primary air for combustion
A heating device for an electric cooktop has at least one long heating conductor, one support body on the top side of which the heating conductor is arranged and fitted, and one supporting means for the support body. The heating conductor is designed as a corrugated flat strip which has, on its bottom side, holding elements which are arranged at a distance from one another and integrally project downward and are pushed into the support body. The supporting means supports the support body, at least in its outer region along an outer edge, at the bottom. The support body consists, as a thin plate, of compressed and adhesively bonded mica material, for example micanite, and is therefore electrically insulating and sufficiently stable.
H05B 3/10 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
H05B 3/26 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
H05B 3/68 - Heating arrangements specially adapted for cooking plates or analogous hot-plates
A gas valve unit to be connected to a gas source includes a body having an inlet, a main chamber in the body communicating with the inlet and having a main outlet communicating with the outlet of the gas valve unit, a disc-shaped element in the main chamber with one or more openings putting the main chamber in communication with the main outlet hole and rotatable between a closing position, where the main outlet hole is entirely covered by the disc-shaped element, and at least two opening positions in which the one or more openings face, at least in part, the main outlet hole to enable gas passage from the main chamber to the main outlet hole via the through opening, and a control unit associated causing the snapping rotation of the disc-shaped element between the closing position and an opening position, and between the at least two opening positions.
In a method for operating a heating device, fluid is initially introduced into a fluid chamber, then the heating elements of the heating device are switched on and a leakage current is detected as a temperature-dependent current flow through a dielectric insulation layer. A supply voltage of the heating devices is measured and is taken into account in an evaluation of the temperature at the fluid chamber as a function of the leakage current. The leakage current is converted into a leakage voltage by means of a resistor, which is then divided by the measured supply voltage. Subsequently, the quotient obtained may be multiplied by a compensation value in order to obtain a normalized leakage signal, which is normalized to a base value of the supply voltage. The normalized leakage signal is used, if a particular absolute value of the leakage signal is exceeded or if a particular slope of the profile of the leakage signal is exceeded, in order to top up the fluid chamber with more fluid and/or to reduce the heating power of at least one heating element.
F24H 9/20 - Arrangement or mounting of control or safety devices
F24H 1/20 - Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
G01F 23/24 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
A tumble dryer has a drum for laundry, a drive motor for the drum, an air supply to the drum and an air discharge from the drum, a fan, including a fan drive, for generating an air stream to the drum through the air supply and away from the drum through the air discharge, and also heating means for heating the air stream. The temperature of and the moisture in the air which is discharged from the drum are detected. The profile of said temperature and moisture is compared with prespecification curves, which are stored in a memory, for the profile of said temperature and moisture by means of calculation means depending on the drying phase of the laundry. The operating point of the prespecification curve at which the drying program is located is determined in this way. The control arrangement influences the further drying program, on the basis of the operating point, by way of adjusting the temperature and/or the intensity of the air stream.
D06F 58/26 - Heating arrangements, e.g. gas heating equipment
D06F 58/38 - Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
In a method for determining a temperature of a revolving drum of a laundry dryer, said drum has an outer wall and thereon at least one strip-shaped delimited detection region comprising thermochromic material having a transition temperature in the range of a temperature that is to be expected and to be determined. Optical detection means arranged adjacent to the revolving part are configured, in particular as a reflected light barrier, to detect the color transition of the thermochromic material in the event of the transition temperature being exceeded or undershot. At the revolving drum the thermochromic material or, if appropriate, the color transition thereof is detected by means of the detection means. A temperature of the drum is then determined as corresponding to the transition temperature in such a way that the temperature thereof is determined as corresponding to one of the two temperature ranges below the transition temperature or above the transition temperature.
G01K 11/16 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in colour, translucency or reflectance of organic materials
F26B 11/04 - Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
F26B 23/04 - Heating arrangements using electric heating
D06F 58/16 - Domestic laundry dryers having heatable surfaces for contacting the laundry
D06F 58/26 - Heating arrangements, e.g. gas heating equipment
D06F 58/04 - Domestic laundry dryers having dryer drums rotating about a horizontal axis Details
A heating device for a hob has a flat rectangular carrier with an outer edge, two heating elements which each have a heating conductor and which together form a heating area and which are fastened on the carrier, wherein each heating element defines a partial heating area, and the partial heating areas are situated inside the rectangular shape of the carrier. The heating elements and their partial heating areas can be operated independently of one another. The partial heating areas of the heating elements do not intersect. A first partial heating area is rectangular and extends, by way of at least one of its outer sides, to the outer edge of the carrier and runs parallel in relation to the outer edge. A second partial heating area covers the portion of the rest of the carrier which is left free by the first partial heating area. Various configurations of heated areas can be achieved owing to the independent operation.
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.
F24C 7/08 - Arrangement or mounting of control or safety devices
F21V 33/00 - Structural combinations of lighting devices with other articles, not otherwise provided for
G01R 33/02 - Measuring direction or magnitude of magnetic fields or magnetic flux
F21V 8/00 - Use of light guides, e.g. fibre optic devices, in lighting devices or systems
G05G 1/015 - Arrangements for indicating the position of a controlling member
G05G 1/08 - Controlling members for hand-actuation by rotary movement, e.g. hand wheels
G05G 1/10 - Details, e.g. of discs, knobs, wheels or handles
H05K 5/00 - Casings, cabinets or drawers for electric apparatus
G05G 5/26 - Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by other means than a quadrant, rod, or the like
78.
Temperature-controlled device for switching off a heating installation
A temperature-controlled device for switching off a heating device at a limit temperature has a thermo-mechanical temperature sensor device, a switch-off device, and manual reactivation means. The switch-off device has switching means which are activated by a trigger for switching off the heating device. The manual reactivation means have a movable handle and transmission means for transmitting a force of an operator for reactivating the switching means after switching off the heating device by the trigger. The transmission means have a click spring which at the beginning is in a basic position and, when an operating force acting on said click spring exceeds a certain limit force, clicks to a deflected position. Said click spring in the basic position enables reactivating or re-switching on, respectively, of the switching means. Said click spring in the deflected position releases so much movement path on the transmission means for the switching means that said switching means by the temperature sensor device and by the switch-off device above the limit temperature are activatable and switchable by the trigger.
An impeller pump has a pump chamber with an inlet and an outlet, and an impeller in the pump chamber. An auxiliary outlet out of the pump chamber together with an auxiliary outlet flap is provided, the auxiliary outlet flap having a closed position and at least one open position and being rotatable or movable between the positions. In the closed position, the auxiliary outlet flap closes off the auxiliary outlet and, in each of the open positions, the auxiliary outlet flap at least partially opens the auxiliary outlet. The auxiliary outlet flap has an actuator and is subjected to force loading by the actuator, such that the auxiliary outlet flap is moved automatically from the closed position into one of the open positions if the auxiliary outlet flap is free from fluid flow in a direction of rotation of the impeller.
An expansion system for temperature detection by means of thermomechanical expansion and movement has an expansion receptacle, an elongate fluid line which is connected in a fluid-conducting manner thereto, and a switching means which is mechanically operatively connected to the expansion receptacle for the purpose of actuation of a switching process of the switching means at a settable actuation point. A working fluid is contained in the expansion receptacle and in the fluid line. Furthermore, an activation material which is formed to change, upon contact with the working fluid or upon mixing with the working fluid, said working fluid with regard to its volume and/or its flowability is contained in the expansion system.
In a method for controlling a cooking appliance having heating devices and an internal cooking appliance controller by means of an external control device which is arranged outside the cooking appliance and may be a mobile telephone, this external control device provides the cooking appliance controller with control commands. The external control device is classified by the cooking appliance controller either as an automatic control device or as a manual control device, wherein its control commands are implemented by the cooking appliance controller after the classification. A check is carried out continuously or at intervals during operation of the cooking appliance in order to determine whether the classification still applies.
F24C 7/08 - Arrangement or mounting of control or safety devices
A47J 36/32 - Time-controlled igniting mechanisms or alarm devices
A47J 27/62 - Preventing boiling over, e.g. of milk by devices for automatically controlling the heat supply by switching off heaters or for automatically lifting the cooking-vessels
G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
H04L 12/28 - Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
A47J 27/56 - Preventing boiling over, e.g. of milk
H05B 6/06 - Control, e.g. of temperature, of power
82.
Spring device for spring-mounting a functional unit of an electrical appliance, and method for influencing a spring device of this kind
A spring device for spring-mounting a laundry drum of a washing machine has at least one spring means and coupling means for coupling the spring means to the spring device. The spring means has a spring constant or spring properties which are temperature-dependent and can be varied by a temperature effect on the spring means. As an alternative or in addition, the coupling means are designed in a temperature-dependent manner in such a way that they vary their coupling effect between the spring means and the spring device by a temperature effect. Heating means are provided for the spring means and/or for the coupling means in order to warm up the said spring means and/or coupling means and to change their spring properties or their coupling effect. Therefore, the spring-mounting arrangement of the laundry drum can be thermally, and therefore quickly and simply, varied.
D06F 37/22 - Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casingPreventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 13/00 - Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system
F16F 15/023 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using fluid means
F16F 15/067 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with metal springs using only wound springs
F16F 3/04 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound springs
F16F 15/027 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using fluid means comprising control arrangements
F16F 15/06 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with metal springs
F16F 1/02 - Springs made of steel or other material having low internal frictionWound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
83.
Heating device and method for producing a heating device
A heating device in the form of a radiant heating device for a hob has a sheet-like support with a support top side, with at least one heating element on the support top side, which heating element is highly corrugated and runs in tracks in a laying pattern. The heating element has at least two heating conductor strips which each have lateral sides and a top edge and a bottom edge. These at least two heating conductor strips are placed together or placed on one another by way of their mutually facing lateral sides and are at least partially in contact. The at least two heating conductor strips are connected to one another in a fixed and non-detachable manner, advantageously before corrugation.
H05B 3/10 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
H05B 3/28 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
H05B 3/40 - Heating elements having the shape of rods or tubes
An electrical control device has a control device casing, switching means being adapted for rotary operation in the control device casing, unlockable blocking means and a rotating shaft for rotary operation of the switching means, wherein the rotating shaft runs through an unlockable blocking means. The blocking means and the rotating shaft have two projections and two corresponding recesses. In a blocking position of the control device the projections are engaging into the recesses for blocking a rotation, and in a rotation position the projections are positioned or moved outside of the recesses for free rotation of the rotating shaft. For unlocking the blocking means or for a transition from the blocking position to the rotation position to take place an axial movement of the rotating shaft along its longitudinal axis is effected. In a simple way, the rotating shaft needs to be pressed into the control device for unlocking.
H01H 3/20 - Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling
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.
B01D 53/28 - Selection of materials for use as drying agents
B01D 53/06 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents
B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
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.
A gas burner for cooking appliances includes a cup-shaped lower support structure to be applied in a position corresponding with an opening made in the sheet metal of a cooking hob, an injector of substantially horizontal axis, applied to a lateral wall of a first cavity provided in the support structure, a substantially horizontal venturi conduit coaxial with the injector and opening at its downstream end into a second cavity provided in the support structure, open upwards, and communicating fluidly with a distribution chamber for the combustion mixture to generate a flame ring, wherein the venturi conduit includes a tubular element separate from the support structure, housed to undergo free axial movement within a corresponding seat provided in the support structure and lockable in the desired axial position by a locking member accessible from above the support structure through the opening provided in the sheet metal of the cooking hob.
F23D 14/06 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
F23D 14/58 - Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
F23D 14/04 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
A gas burner with multiple rings of main flames includes an injector holder structure; a central distribution chamber within a central flame divider element that is rigid with the injector holder structure, generates a central ring of flames, and is closed by a circular cover; an annular distribution chamber having an annular flame divider element that is rested on the injector holder structure, generates at least one ring of main flames concentric with the central ring of flames, is separated from the central distribution chamber by an annular space, and is closed by an annular cover; and first and second venturi conduits that are substantially horizontal and parallel, are situated in the injector holder structure outline, and have inlet ends facing injectors associated with a wall of the injector holder structure and outer ends opening into cavities communicating with the central distribution chamber and with the annular distribution chamber.
F23D 14/06 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
In order to heat water in a cooking vessel which is placed above at least one induction heating coil of an induction hob, a controller drives the induction heating coil with a prespecified relatively high power density. During the heating, operating parameters of the induction heating coil are detected and evaluated by the controller in order to monitor a relative temperature profile of the temperature of a cooking vessel base. As soon as this relative temperature profile levels off to a considerable extent or a gradient of the relative temperature profile decreases, the controller identifies this and determines this as the situation of a “lightly boiling” state and of a temperature of a top side of the cooking vessel base which is 5° C. to 15° C. below the boiling point being reached. The power density is then automatically reduced for a predetermined hold time, wherein an operator can maintain this state or, after a certain time, heating up can be performed to a greater extent again automatically.
An evaporator device for water for installation in a steamer has a water tank having an encircling outer wall and an encircling inner wall, wherein a heating device is provided on the outer wall. The inner wall extends within the outer wall and with a clearance relative thereto, wherein a water zone is formed between the outer wall and the inner wall. A pump is arranged within the inner wall in order to pump water from a water reservoir into the water zone. A steam outlet emerges upwards from the water zone and leads into the steamer.
A47J 27/04 - Cooking-vessels for cooking food in steamDevices for extracting fruit juice by means of steam
F24C 15/32 - Arrangements of ducts for hot gases, e.g. in or around baking ovens
F22B 1/28 - Methods of steam generation characterised by form of heating method in boilers heated electrically
F16T 1/00 - Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
A method for operating a hob for maintaining a state, which exists at the time of activation of the maintaining operation, at a cooking point of the hob with a cooking vessel on it detects a change in temperature of the cooking vessel as a change in state, wherein supplied power and/or a change in temperature of the cooking vessel are evaluated. A maintaining function for maintaining the state, which is indicated at this time, at the cooking point with a cooking vessel placed on it can be triggered. In doing so, the current state at the cooking point is classified as a process at the boiling point of water on the one hand and as a process which is different therefrom or as a process which takes place at a different temperature without a phase transition of water on the other hand.
A microwave generator for a microwave device includes a single component carrier for control components and power components, which includes a continuous carrier material. Two power regions and one control region are provided on the component carrier. In the control region, electrically functional components are arranged on both flat sides of the component carrier, while in the power regions, electrically functional components with at least one power switch are arranged only on an upper flat side, heat sinks being arranged on the lower flat side. An RF substrate is provided in regions on the upper flat side of the power region.
A method for controlling a cooking appliance using a mobile terminal that is separate from the cooking appliance, both of which have a controller and a BLE communication device, involves the following steps being performed: switching on the cooking appliance and the terminal, setting up a communication link between the two by means of a specified user process on the cooking appliance or on the terminal and confirming the set-up of the communication link by means of a user process by the user on the cooking appliance. A signal strength of the communication link between the two communication devices at the time of confirmation of the communication link on the cooking appliance is stored and is monitored during use. If the signal strength drops below a prescribed signal strength limit value, then user commands from the mobile terminal are blocked.
The invention relates to a heating circuit for induction heating coils of an induction cooking hob and to an induction cooking hob including such a heating circuit. In the heating circuit, there are in each case two auxiliary half bridges interconnected to excite a respective resonant circuit for an induction heating coil such that the resonant circuit is excited by a full bridge. Thereby, lost heat is considerably reduced. Via a connecting device the auxiliary half bridges can be controlled to excite induction heating coils, which are partly or fully covered by a cooking vessel.
In a method for operating an induction hob including a controller and including a cooking point including an induction heating coil, a relationship between a cooking vessel temperature and a heating power of the induction heating coil is stored in the controller as area power which results in a constant cooking vessel temperature during long-term operation. By monitoring whether the cooking vessel temperature remains constant, increases or drops when a first relatively low heating power is set after a heating time at a high heating power, it is possible to set a target temperature, which corresponds to the first relatively low heating power, for frying processes.
A heating device has a support and a heating element arranged on it, the heating element having two electrical terminals and a multiplicity of heating conductors that are electrically connected to one another. Starting from the one terminal, the heating element is divided into a number of heating conductors parallel to one another and in series one behind the other toward the second terminal. In this case, at least three heating conductors are connected in parallel next to one another and at least three heating conductors are connected in series one behind the other. Series-connected heating conductor groups can be formed, heating conductors being parallel within a heating conductor group.
H05B 3/28 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
H05B 3/26 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
H05B 3/16 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being mounted on an insulating base
H05B 3/10 - Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
In a method for operating a tumble dryer for drying damp laundry, the profile of the moisture of the air in the tumble dryer, advantageously the absolute moisture, is measured during an initial phase of the drying process. The profile of the measured moisture is then compared with stored profiles for the moisture or a gradient of the profile of the measured moisture is compared with stored gradient threshold values for gradient values of the moisture. In this case, profiles and/or gradient threshold values for fibers from the following group: cotton, wool and synthetic fibers, and also an upper gradient threshold value and a lower gradient threshold value are stored. A major fabric content including synthetic fibers is identified for the laundry when the upper gradient threshold value is exceeded, a major fabric content including wool is identified when the lower gradient threshold value is undershot, and a major fabric content including cotton is identified between the upper gradient threshold value and the lower gradient threshold value.
To determine the temperature of boiling water in an induction hob including induction heating coils which can be individually driven and which, in a common heating mode, form a cooking point for a cooking vessel containing water, the cooking vessel is positioned over at least two induction heating coils. The induction heating coils are operated in the heating mode to bring the water in the cooking vessel to boil and each induction heating coil heats that region of the cooking vessel base arranged above it. During the heating mode, the oscillation response at each induction heating coil is used to detect whether temperature of the region of the cooking vessel base above this induction heating coil increases. The induction heating coils are operated in the heating mode until one induction heating coil detects that the temperature gradient of the cooking vessel base above the induction heating coil has reached zero.
An induction heating device including two induction heating coils and a plug-type contact device has a flat coil carrier for the induction heating coils, the plug-type contact device being arranged on the bottom face of the coil carrier with an insertion direction perpendicular to the surface of the coil carrier. The plug-type contact device has, on the bottom face of the coil carrier, a plug housing being movable with a defined movement travel in a plane parallel to the surface of the coil carrier. The plug housing has four receiving chambers being open at the bottom and having a direction of extent parallel to the insertion direction, in each of which a plug-type contact is arranged. A contact-making line runs from the plug-type contact to the induction heating coil.
A gas burner includes an injector holder fixable to the sheet metal of a cooking hob and provided on its base with an injector, a burner body associated with the injector holder and defining with the sheet metal a circumferential passage for the entry of primary air intended to form the combustion mixture with the gas leaving the injector, at least one cover, formed from a single piece of drawn sheet metal, positioned on the burner body and defining therewith at least one radial venturi effect chamber, wherein the cover includes a circumferential flange provided with a plurality of elongated apertures of essentially vertical extension, for passage of the combustion mixture which generates a ring of main flames.
F23D 14/06 - Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
F23D 14/26 - Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
