WO2023061709A1 - Dispositif d'appareil ménager, petit appareil ménager et système d'appareil électroménager - Google Patents

Dispositif d'appareil ménager, petit appareil ménager et système d'appareil électroménager Download PDF

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Publication number
WO2023061709A1
WO2023061709A1 PCT/EP2022/076080 EP2022076080W WO2023061709A1 WO 2023061709 A1 WO2023061709 A1 WO 2023061709A1 EP 2022076080 W EP2022076080 W EP 2022076080W WO 2023061709 A1 WO2023061709 A1 WO 2023061709A1
Authority
WO
WIPO (PCT)
Prior art keywords
household appliance
circuit board
printed circuit
electronic
appliance device
Prior art date
Application number
PCT/EP2022/076080
Other languages
German (de)
English (en)
Inventor
Emilio PLUMED VELILLA
Jesus Acero Acero
Ignacio Lope Moratilla
Sergio Llorente Gil
Jorge Felices Betran
Izaskun JACA EQUIZA
Original Assignee
BSH Hausgeräte GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Publication of WO2023061709A1 publication Critical patent/WO2023061709A1/fr

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
    • H05B6/1236—Cooking devices induction cooking plates or the like and devices to be used in combination with them adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way

Definitions

  • the invention relates to a household appliance device according to the preamble of claim 1, a small household appliance according to claim 14 and a household appliance system according to claim 15.
  • the object of the invention is in particular to provide a generic device with improved properties in terms of efficiency.
  • the object is achieved according to the invention by the features of claims 1, 14 and 15, while advantageous configurations and developments of the invention can be found in the dependent claims.
  • the invention is based on a household appliance device, in particular a small household appliance device, with at least one circuit board, which in at least one Operating condition is exposed to at least one magnetic field, and with at least one arranged on the printed circuit board electronic unit.
  • the electronic unit is arranged at least partially in an area on the printed circuit board in which at least one spatial component of the magnetic field during the operating state is minimal.
  • efficiency can be increased and a particularly compact design can be provided.
  • the efficiency can be increased in terms of product and/or labor and/or assembly and/or cost and/or performance efficiency.
  • an influencing of the electrical unit by the magnetic field can be at least partially reduced and preferably almost completely prevented.
  • security specifically operational security, can be increased.
  • comfort in particular user comfort, can be improved.
  • a construction of intelligent small household appliances advantageously l-pots, can be simplified and/or made more secure and/or more compact and/or more convenient in terms of design.
  • the household appliance device could be a large household appliance device, such as a cooking appliance device, possibly a microwave device and/or a grill device and/or a steam appliance device and/or an oven device and/or the hob device, and/or household refrigeration appliance device, in particular a refrigerator and/or freezer device, and/or or a household cleaning appliance device, for example a dishwasher device and/or a washing machine device and/or a tumble dryer device, and/or preferably a small household appliance device.
  • the household appliance device advantageously forms a subassembly of a small household appliance. It would also be conceivable for the small household appliance device to form the small household appliance.
  • the small household appliance is preferably a location-independent household appliance.
  • the small household appliance is in a household stop is freely positionable by a user, and in particular without tools, in particular in contrast to a large household appliance which is permanently positioned and/or installed at a specific position in a household, such as an oven or a refrigerator.
  • the small household appliance is preferably designed as a small kitchen appliance and, in the operating state, provides at least one household appliance function for processing food.
  • the small household appliance could, without being limited thereto, for example as a multifunction food processor and/or as a mixer and/or as a stirrer and/or as a grinder and/or as a kitchen scale or as a kettle or as a coffee maker or as a rice cooker, or a milk frother, or a fryer, or a toaster, or a juice extractor, or a slicer, or the like.
  • the household appliance in particular the large household appliance, could be, for example, a cooking appliance, for example a microwave and/or an oven and/or a grill and/or a hob and/or a steam cooker, and/or a household refrigeration appliance such as a refrigerator - and/or freezer, and/or a household cleaning appliance, for example a dishwasher and/or a washing machine and/or a tumble dryer.
  • the household appliance device and the small household appliance are part of a household appliance system.
  • the household appliance system is preferably designed as a hob system.
  • the hob system in particular an induction hob system, is intended for use and/or arrangement in a kitchen.
  • the hob system could have a multiplicity of units and/or devices which can be used to treat and/or process food.
  • the hob system could be part of a kitchen appliance and in particular additionally have at least one extractor unit and/or at least one sensor unit, in particular a temperature sensor, which could be provided for placement in the cookware and/or in the food to be cooked, for example in the form of a skewer.
  • the household appliance system preferably includes the small household appliance and the household appliance, in particular the hob.
  • the small household appliance can be used with the household appliance, in particular by means of the household appliance device. It would be conceivable that the household appliance tabletop included.
  • the mounting plate is at least one unit, in particular a plate-like unit, which is provided for setting up at least the small household appliance and/or a cooking utensil and/or for placing at least one item to be cooked on it.
  • the mounting plate could be designed, for example, as a worktop, in particular as a kitchen worktop, or as a partial area of at least one worktop, in particular at least one kitchen worktop, in particular of the household appliance system. Alternatively and/or additionally, the mounting plate could be designed as a hob plate.
  • the mounting plate designed as a hob plate could in particular form at least part of an outer hob housing and advantageously together with at least one outer housing unit, with which the mounting plate designed as a hob plate could be connected in at least one assembled state, at least to a large extent form the outer hob housing.
  • the mounting plate is preferably made of a non-metallic material.
  • the installation plate could be at least partially or at least for the most part made of glass and/or glass ceramic and/or Neolith and/or Dekton and/or wood and/or marble and/or stone, in particular natural stone, and/or be made of laminate and/or plastic and/or ceramic and/or a composite material.
  • the expression “for the most part” should be understood to mean, for example, at least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85% and particularly advantageously at most 95% of a volume and/or mass fraction.
  • location designations such as “below” or “above” refer to an assembled state of the installation plate, unless this is explicitly described otherwise.
  • the household appliance system is designed as an energy transmission system, in particular as an induction energy transmission system.
  • the energy transmission system has at least one main functionality in the form of a wireless energy transmission, in particular in the form of a wireless energy supply of small household appliances, in particular at least the small household appliance.
  • the induction energy transmission system is designed as an induction cooking system with at least one additional main function that deviates from a pure cooking function, in particular at least one energy supply and operation of small household appliances.
  • the induction energy transfer system could be designed as an induction oven system and/or as an induction grill system.
  • the supply unit could be designed as part of an induction oven and/or as part of an induction grill.
  • the induction energy transmission system designed as an induction cooking system is designed as an induction hob system which comprises at least the hob, in particular an induction hob.
  • the induction energy transmission system has a supply unit arranged below the mounting plate, which comprises at least one supply induction element for the inductive provision of energy.
  • the induction energy transmission system to include a control unit which, in at least the operating state, controls the supply unit and supplies it with energy, in particular electrical energy.
  • the control unit and the supply unit are advantageously part of the household appliance, in particular the hob.
  • the induction energy transmission system prefferably be designed as a small household appliance supply system which includes at least one small appliance supply unit and, in addition to a main function in the form of energy supply and operation of small household appliances, can also be provided for providing cooking functions.
  • the control unit and the supply unit are then designed in particular as part of the small appliance supply unit.
  • the supply unit is a unit which provides inductive energy in at least one operating state, in particular at least the operating state, and which in particular has a main functionality in the form of energy supply.
  • the supply unit has at least the supply induction element, which has at least one coil, in particular at least one primary coil, and/or is designed as a coil and which in particular provides inductive energy in at least the operating state.
  • the supply unit has a primary resonant circuit.
  • the supply unit could have at least two, in particular at least three, advantageously at least four, particularly advantageously at least five, preferably at least eight and particularly preferably several supply induction elements, which in at least the operating state could each provide inductive energy, in particular to a single receiving induction element or to at least two or more recording induction elements of at least one small household appliance and/or at least one other small household appliance.
  • At least part of the supply induction elements could be in a Be arranged close to each other, for example in a row and / or in the form of a matrix.
  • the control unit is to be understood as an electronic unit which, in at least the operating state, controls at least one supply induction element of the supply unit, in particular repetitively with a switching frequency, and supplies it with energy.
  • the control unit preferably has at least one inverter for the control and energy supply of at least the supply induction element, which can be designed in particular as a resonance inverter and/or as a dual half-bridge inverter.
  • the inverter preferably comprises at least two switching elements which can be controlled individually by the control unit.
  • a “switching element” is to be understood as meaning an element that is provided for establishing and/or separating an electrically conductive connection between two points, in particular contacts of the switching element.
  • the switching element preferably has at least one control contact via which it can be switched.
  • the switching element is preferably a semiconductor switching element, in particular a transistor, for example a metal-oxide-semiconductor field effect transistor (MOSFET) or organic field effect transistor (OFET), advantageously a bipolar transistor with a preferably insulated gate electrode (IGBT).
  • MOSFET metal-oxide-semiconductor field effect transistor
  • OFET organic field effect transistor
  • the switching element is designed as a mechanical and/or electromechanical switching element, in particular as a relay.
  • the control unit comprises an arithmetic unit and, in particular, in addition to the arithmetic unit, a memory unit with at least one control program stored therein, which is intended to be executed by the arithmetic unit.
  • the control unit preferably controls at least the supply induction element to generate the magnetic field, in particular an alternating magnetic field, and to supply electrical energy with an electrical alternating current, in particular its switching frequency preferably in a range from 20 kHz to 150 kHz and particularly preferably in a range from 30 kHz to 75 kHz.
  • the inductive transfer of energy between the household appliance and the small household appliance advantageously takes place by means of the magnetic field, in particular the alternating magnetic field.
  • the domestic appliance device is in at least the operating state of the magnetic field generated by the control unit and/or the supply unit exposed.
  • the small household appliance is advantageously arranged on and/or on the household appliance in at least the operating state, for example the small household appliance is arranged on the hob and is at least partially exposed to the magnetic field.
  • the small household appliance is preferably set up on the mounting plate in at least the operating state and is at least partially exposed to the magnetic field.
  • the domestic appliance device preferably has at least one energy absorption unit.
  • the energy absorbing unit can have a secondary resonant circuit, in particular an electrical secondary resonant circuit, for receiving and/or processing the energy provided inductively.
  • the energy absorbing unit could have at least one inductive absorbing element for receiving the inductively provided energy.
  • the pick-up induction element comprises at least one secondary coil and/or is designed as a secondary coil.
  • An AC voltage could be induced in the receiving induction element due to the magnetic field, in particular the alternating magnetic field, originating from the supply induction element.
  • an electric current could flow in the secondary resonant circuit due to the magnetic field, in particular the alternating magnetic field.
  • the printed circuit board with at least the electronic unit is advantageously part of the energy absorption unit.
  • the electronic unit is part of the secondary resonant circuit.
  • the household appliance device can have at least one functional unit which, in at least the operating state, provides at least one household appliance function for the small household appliance.
  • the energy absorption unit could supply the functional unit with electrical energy.
  • the domestic appliance device includes further electrical and/or electronic components, for example switches and/or further electrical and/or electronic components that appear useful to a person skilled in the art.
  • the domestic appliance device could have an energy store, in particular a rechargeable battery, which is provided to store electrical energy received via the receiving inductive element in a charging state and to make it available in a discharging state to supply the functional unit.
  • the electronic unit is at least partially exposed to the magnetic field in at least the operating state.
  • the electronic unit is advantageous a electronic component which conducts and/or influences at least one electric current in a gas, in a conductor, in a vacuum and/or advantageously in a semiconductor.
  • the electronic unit could, for example, have at least one line and/or at least one resistor and/or at least one relay and/or at least one circuit and/or at least one sensor and/or at least one semiconductor, for example a diode, and/or at least one capacitor and /or at least one cell, for example a solar cell, and/or at least one amplifier and/or at least one controller.
  • a controllable, primary electrical alternating current flows into the primary resonant circuit, in particular through the control unit, advantageously in terms of its frequency and/or amplitude and/or phase position, through which the supply induction element generates the magnetic field, in particular an electromagnetic field, which induces a secondary electrical alternating current in the energy absorbing unit, in particular the absorbing induction element.
  • the magnetic field extends at least along the spatial component.
  • the spatial component is preferably at least essentially perpendicular to a main plane of extension of the household appliance, in particular the mounting plate, with the at least essentially perpendicular orientation of the spatial component to the main plane of extension being less than 10%, preferably less than 5% and particularly preferred less than 2% from a right angle.
  • “at least essentially” is to be understood in this document as meaning that a deviation from a specified value is less than 20%, preferably less than 10% and particularly preferably less than 5% of the specified value.
  • the household appliance device is preferably arranged at least partially in a base area of the household appliance, specifically in particular an area of the household appliance which has at least the receiving induction element in at least the operating state.
  • the circuit board and the pick-up inductor could be located in close proximity to each other.
  • the printed circuit board is advantageously arranged at least partially and advantageously completely below the receiving inductive element, in particular the secondary coil.
  • the printed circuit board and the receiving inductive element may be in direct contact with one another, at least in sections. Nander, in particular contact-flush, arranged.
  • a thermal insulation element of the household appliance device is preferably arranged at least in sections between the printed circuit board and the receiving inductive element.
  • thermal insulation element can be provided for thermal insulation of at least the electrical unit on the printed circuit board.
  • the thermal insulation element at least partially protects the electrical unit from overheating.
  • the printed circuit board and the receiving inductive element are advantageously electrically connected to one another.
  • the printed circuit board can have different areas with regard to a strength, in particular a magnetic flux density, of the magnetic field, in which the magnetic field, in particular at least one spatial component of the magnetic field, has different strengths.
  • spatial orientations of the magnetic field vary in strength, at least in the operating state, in particular in relation to the printed circuit board.
  • the spatial component of the magnetic field is minimal in at least the operating state.
  • the printed circuit board can have at least one further area in which at least the spatial component of the magnetic field is stronger in at least the operating state than in the area.
  • the spatial component is at a maximum in at least one further area.
  • numerals such as “first” and “second” which precede certain terms serve only to distinguish between objects and/or an association between objects and do not imply an existing one Total number and/or ranking of objects.
  • a “second” object does not necessarily imply the existence of a "first” object.
  • “provided” here and in the following is to be understood to mean specially programmed, designed and/or equipped.
  • the fact that an object is provided for a specific function should be understood to mean that the object fulfills and/or executes this specific function in at least one application and/or operating state. It is also proposed that the spatial component of the magnetic field is aligned at least essentially perpendicularly to the main plane of extension of the printed circuit board during the operating state.
  • a performance of an electronic unit on the printed circuit board can be improved and the electronic unit can be advantageously protected from being influenced by a magnetic field in at least one operating state.
  • the electronic unit can be arranged on the printed circuit board precisely in an area in which a spatial component of the magnetic field perpendicular to the printed circuit board is minimal. Safety can thus be increased further, specifically overheating of the electronic unit by the magnetic field can be avoided.
  • the main extension plane of the circuit board is preferably aligned at least essentially parallel to the main extension plane of the installation plate, in particular when the small household appliance is in an installed state on the installation plate.
  • a “main extension plane” of a structural unit is to be understood as a plane which is parallel to a largest side surface of an imaginary cuboid which just completely encloses the structural unit and in particular runs through the center point of the cuboid.
  • the spatial component of the magnetic field can be aligned perpendicularly to the main plane of extension of the mounting plate.
  • a further spatial component of the magnetic field which is aligned at least essentially perpendicularly to the spatial component of the magnetic field, is at a maximum.
  • efficiency can be increased further.
  • performance can be improved and influence of a magnetic field on an electronic unit can be reduced.
  • the further spatial component of the magnetic field can extend at least essentially parallel to the main plane of extent of the printed circuit board and/or the main plane of extent of the mounting plate. It would be conceivable for the further spatial component to run in the main extension plane of the printed circuit board, at least in the operating state.
  • the further spatial component in the area of the printed circuit board has a higher value than the spatial component, at least in the operating state. It would be conceivable that a value of the further spatial component in the area on the circuit board possibly at least twice, advantageously at least three times and preferably at least four times as strong as a value of the spatial component of the magnetic field. Possibly the further spatial component of the magnetic field is maximal in the area on the circuit board.
  • the electronic unit has at least one electronic element with a first metal connection and at least one second metal connection.
  • a design can thus be further improved and efficiency can be increased in terms of product efficiency and/or work efficiency and/or assembly efficiency and/or performance efficiency and/or cost efficiency.
  • an electronic element with at least one metallic connection can be protected from being influenced, namely overheating and/or interference by the magnetic field field to be protected.
  • Safety can thus be increased and a compact construction can be provided.
  • the first metal connection could be a positive connection and the second metal connection could be a negative connection or vice versa.
  • the first metal connection and/or the second metal connection is/are provided to enable an electric current to flow in the electronic element.
  • the first metal connection interacts with the second metal connection in at least the operating state.
  • the second metal connection could be arranged on an opposite side of the electronic element to the first metal connection.
  • the first metal connection and/or the second metal connection is advantageously arranged in at least one edge region of the electronic element.
  • a direction, which points from the first metallic connection to the second metallic connection extends at least essentially perpendicularly to a radial direction of the printed circuit board in the region on the printed circuit board.
  • the printed circuit board could have an angular shape, for example square or rectangular, and preferably a round shape.
  • the radial direction can point radially to an outer edge of the printed circuit board.
  • the radial direction could extend at least essentially perpendicular to a tangential direction of the printed circuit board.
  • the direction from the first metal connection to the second metal connection extends tangentially to the center point of the circuit board.
  • the electronic element in the area on the printed circuit board is aligned at least substantially tangentially to the center point of the printed circuit board, in particular with regard to the direction extending from the first metal connection to the second metal connection.
  • the electronic element could have a round or angular, for example square or rectangular, shape.
  • the electronic unit advantageously has at least one surface, which preferably forms a largest surface of the electronic element.
  • the surface can be free of the first metal connection and/or the second metal connection.
  • the surface extends on a side of the electronic element which is oriented parallel to the direction from the first metal terminal to the second metal terminal.
  • the radial direction of the printed circuit board could at least essentially perpendicularly strike said side, in particular said surface, of the electronic element.
  • the electronic element has at least one capacitor.
  • at least the electronic element advantageously the capacitor, is part of the secondary resonant circuit.
  • the capacitor can be provided to regulate an output of the pick-up inductor, in particular the secondary coil.
  • a frequency and thus advantageously a power of the pick-up induction element, in particular the secondary coil could change in at least the operating state.
  • the capacitor is a passive electronic one Component which comprises two electrically conductive surfaces, in particular two electrodes, and an insulating material, in particular a dielectric, the insulating material separating the two electrically conductive surfaces from one another.
  • the electrodes and the dielectric can be rolled up or arranged in parallel as a stack.
  • the first metal connection and at least the second metal connection advantageously form the two electrically conductive surfaces, in particular the electrodes.
  • the capacitor could be, for example, a plastic film capacitor, an aluminum and tantalum electrolytic capacitor and/or preferably a ceramic capacitor.
  • the ceramic capacitor could have a ceramic dielectric.
  • the ceramic capacitor is a ceramic multilayer capacitor.
  • the electronic unit has at least one additional electronic element with an additional first metal connection and at least one additional second metal connection. Furthermore, an electronic element and at least one further electronic element can be arranged in the area in such a way that the electronic element and at least one further electronic element heat up uniformly.
  • the further electronic element could differ from at least the electronic element in one configuration, for example in a shape and/or size and/or material composition.
  • the further electronic element can comprise at least one further capacitor.
  • the further electronic element is preferably configured identically to the electronic element. It would also be conceivable for the electronic unit to have further electronic elements, which could advantageously be configured identically to the electronic element and/or the further electronic element.
  • the electronic unit could have at least five additional electronic elements, advantageously at least 10 additional electronic elements and preferably at least 20 additional electronic elements.
  • At least the first metal connection or at least the second metal connection and at least the further first metal connection or at least the further second metal connection are arranged facing one another in the area on the printed circuit board. This allows a particularly compact te construction are provided. Furthermore, efficiency can be increased, specifically with regard to product efficiency and/or work efficiency and/or assembly efficiency and/or performance efficiency and/or cost efficiency.
  • a further direction starting from the further first metallic connection to the further second metallic connection in the area on the printed circuit board is aligned at least essentially perpendicular to the radial direction of the printed circuit board.
  • the electronic element and/or the further electronic element could be arranged radially on the printed circuit board in the area, independently of a viewing direction.
  • the electronic element and at least the further electronic element together form an electronic assembly.
  • efficiency can be increased further and performance can be improved.
  • a construction can be made more compact and simple.
  • the electronic element and the further electronic element could be arranged at a distance from one another and in particular independently of one another on the printed circuit board in the area.
  • the electronic element and at least the further electronic element could possibly be controlled and/or switched on and/or switched off independently of one another in the secondary resonant circuit.
  • the electronic element and the further electronic element are preferably in operative connection with one another in at least the operating state. In at least the operating state, the electronic element and at least the further electronic element can be operated together.
  • the electronic element and the further electronic element can be mounted as an electronic assembly on the printed circuit board during manufacture of the household appliance device. Alternatively, the electronic element and the further electronic element on the circuit board could be electrically connected to one another.
  • the area could, for example, extend over at least one section in the circumferential direction of the printed circuit board. If the area extends over an entire circumferential direction of the printed circuit board, efficiency can be further increased. In addition, a compact and advantageously designed construction can be provided. Preferably the area extends in the circumferential direction tangentially to the center point of the printed circuit board, in particular along the tangential direction.
  • the circuit board has at least one electrical main connection and the electronic unit has at least one electrical conductor track, in particular a first electrical conductor track, by means of which the electronic element is connected at least to the main connection.
  • the main connection could be a positive or negative electrical connection, for example.
  • the printed circuit board preferably has a further electrical main connection, which is provided with the electrical main connection to enable an electrical current to flow.
  • the main electrical connection could be positive and the other main electrical connection could be negative.
  • the first electrical connection or second electrical connection of the electronic element is connected to the main connection or the further main connection, specifically by means of at least the electrical conductor track.
  • the first electrical connection could be connected to the main connection and the second electrical connection could be connected to the further main connection.
  • the electrical conductor track in particular the first electrical conductor track, could electrically connect the electrical connection to the main connection.
  • the electronic unit could have at least one second electrical conductor track, which could be provided to connect the second electrical connection to the other main connection.
  • the electronic unit advantageously comprises a plurality of electrical conductor tracks for connecting electronic elements and/or electronic components to at least the main connection and/or the additional main connection.
  • the printed circuit board is preferably electrically connected to the receiving inductive element by means of at least the main connection.
  • an electrical current could be conducted from the main connection to the electronic element by means of at least the electrical conductor track.
  • the electrical current could be routed from the electronic element back to a further main connection by means of the second electrical conductor track.
  • the electrical conductor track connects the electronic element to at least one further electronic element.
  • efficiency can be increased and a particularly compact design can be provided.
  • an electronic element and at least one further electronic element can be jointly conductively connected by means of at least one conductor track, specifically at least to a main connection of a printed circuit board.
  • the electrical conductor track in particular the first conductor track, preferably connects the electronic element and at least the further electronic element together with the main connection or the further main connection.
  • At least the second conductor track could provide at least one common electrical connection from the further main connection to the electronic element and at least the further electronic element.
  • the first electrical conductor track which in particular forms a positive conductor track
  • the second electrical conductor track which in particular forms a negative conductor track
  • the first electrical conductor track and the second electrical conductor track are arranged in alternation, namely alternately, preferably overlapping in sections, in the area. Consequently, in a section in the area, for example, the first electrical conductor track can run between the second electrical conductor track and the center point of the printed circuit board. In a further section in the area, for example, the second electrical conductor track could run between the first electrical conductor track and the center point of the printed circuit board.
  • first electrical conductor track and/or the second electrical conductor track could be arranged at least in sections on different sides of the printed circuit board.
  • the in particular first electrical conductor track could possibly be arranged at least partially or completely on a top side of the printed circuit board.
  • the second electrical conductor track could be arranged at least partially or completely on an underside of the printed circuit board.
  • a number of conductor tracks corresponds to twice the number of electronic elements. This allows an individual interconnection and/or activation of electronic elements on the printed circuit board. Furthermore, efficiency can be increased further and flexibility can be increased.
  • the electronic unit could have at least one additional first electrical conductor track for connecting the additional electronic element to the main connection.
  • the electronic unit could have at least one additional second electrical conductor track for connecting the additional electronic element to the additional main connection.
  • the electronic element and the further electronic element are connected separately from one another to the main connection and/or the further main connection.
  • the household appliance device and/or the small household appliance and/or the household appliance system should not be limited to the application and embodiment described above.
  • the household appliance device and/or the small household appliance and/or the household appliance system can have a number of individual elements, components and units that differs from the number specified here in order to fulfill a functionality described herein.
  • values lying within the stated limits should also be considered disclosed and can be used as desired.
  • FIG. 1 shows a household appliance system with a small household appliance comprising a household appliance device
  • FIG. 2 shows a detailed view of an electronic element, designed as a capacitor, of an electrical unit of the household appliance device in a schematic representation
  • 3 shows a printed circuit board of the household appliance device with the electronic unit arranged thereon
  • FIG. 5 shows a top side of a printed circuit board of a household appliance device in an alternative embodiment
  • FIG. 6 shows an underside of the printed circuit board according to FIG.
  • FIG. 1 shows a household appliance system 50a with at least one small household appliance 10a and one household appliance 52a designed as a hob in a schematic representation.
  • the small household appliance 10a is designed as a kettle.
  • the small household appliance 10a could be configured as a food processor, for example for mixing and/or stirring food, and/or as a kitchen scale and/or as a coffee machine and/or as a rice cooker and/or as a fryer.
  • the household appliance 52a to be designed alternatively and/or additionally as, for example, a microwave and/or an oven and/or a grill and/or a household refrigerator and/or as a household cleaning appliance.
  • the household appliance 52a includes a mounting plate 54a, which is provided for setting up at least the small household appliance 10a.
  • FIG. 1 shows a state in which the small household appliance 10a is arranged on the mounting plate 54a.
  • the set-up plate 54a is designed as a hob plate.
  • the household appliance system 50a is designed as an energy transmission system, specifically in the present case as an induction energy transmission system.
  • the energy transmission system has at least one main functionality in the form of a wireless energy transmission, namely in a wireless energy supply of small household appliances, in this case at least the small household appliance 10a.
  • the induction energy transmission system is embodied as an induction hob system, which includes at least household appliance 52a embodied as an induction hob.
  • the domestic appliance system 50a has a supply unit which is arranged below the mounting plate 54a and comprises at least one inductive supply element for the inductive provision of energy (not shown).
  • the supply unit is lying part of the household appliance 50a.
  • the supply induction element is designed as a coil, specifically as a primary coil.
  • the supply unit includes a primary resonant circuit. Furthermore, the domestic appliance system has a control unit which, in at least one operating state, controls the supply unit and supplies it with energy.
  • the supply unit and the control unit are part of the household appliance 52a (not shown).
  • the control unit controls the supply unit, namely at least the supply induction element, to generate a magnetic field 20a, specifically an alternating magnetic field, and to supply electrical energy with an electrical alternating current (not shown).
  • the inductive energy transmission between the household appliance 52a and the small household appliance 10a takes place by means of the magnetic field 20a.
  • the small household appliance 10a is exposed to the generated magnetic field 20a in at least the operating state (cf. FIG. 1).
  • the small household appliance 10a includes a household appliance device 12a, which is accordingly designed as a small household appliance device.
  • the household appliance device 12a comprises an energy receiving unit which, corresponding to the supply unit, has at least one receiving inductive element for receiving the inductively provided energy (not shown).
  • the pick-up induction element comprises at least one secondary coil and/or is designed as a secondary coil.
  • a secondary resonant circuit is part of the energy absorption unit.
  • the domestic appliance device 12a is exposed to the magnetic field 20a in at least the operating state (cf. FIG. 1). In at least the operating state, an electric current flows in the secondary resonant circuit (not shown) due to the magnetic field generated by means of the primary coil.
  • the household appliance device 12a has at least one functional unit which, in at least the operating state, provides at least one household appliance function for the small household appliance 10a. In at least the operating state, the energy receiving unit supplies the functional unit with electrical energy (not shown).
  • the household appliance device 12a has a printed circuit board 14a (cf. FIG. 3). In at least the operating state and when the small household appliance 10a is arranged on and/or on the household appliance 52a, the printed circuit board 14a is exposed to the magnetic field 20a. The printed circuit board 14a is part of the energy absorption unit. On the ladder- At least one electronic unit 16a of the household appliance device 12a is arranged on the plate 14a (cf. FIG. 3).
  • the electronic unit 16a comprises at least one electronic element 32a with a first metal connection 34a and at least one second metal connection 36a. In the present example, the first metal connection 34a is a positive electrical connection and the second metal connection 36a is a negative electrical connection.
  • FIG. 1 shows the household appliance system 50a with the small household appliance 12a arranged on the mounting plate 54a
  • the configuration of the electronic element 32a and the printed circuit board 14a with the electronic unit 16a arranged are to be illustrated in the following figures, in particular FIGS. All figures are schematic representations that are not true to scale. For the sake of clarity, of objects that are present several times, only one object is provided with a reference number.
  • the household appliance device 12a is arranged in a lower area, namely in a bottom area of the small household appliance 10a. Furthermore, the household appliance device 12a is arranged in the small household appliance 10a such that the household appliance device 12a is positioned in the vicinity of the supply unit when the small household appliance 10a is arranged on and/or on the household appliance 52a.
  • the printed circuit board 14a is arranged below the pick-up inductive element, namely the secondary coil (not shown).
  • a thermal insulation element (not shown) is arranged between the printed circuit board 14a and the receiving inductive element for thermal insulation of the electronic unit 16a.
  • the magnetic field 20a includes at least one spatial component 26a.
  • spatial component 26a In at least the operating state, spatial component 26a extends at least essentially perpendicularly to a main plane of extension of mounting plate 54a (cf. FIG. 1). Furthermore, the spatial component 26a extends in at least the operating state at least essentially perpendicularly to a main extension plane 30a of the printed circuit board 14a (cf. FIG. 3).
  • the magnetic field 20a has at least one further spatial component 28a which, in at least the operating state, is aligned at least essentially perpendicularly to the spatial component 26a of the magnetic field 20a.
  • the electronic unit 16a is arranged on the printed circuit board 14a in such a way that the electronic unit 16a is arranged in a region 18a in which at least the spatial component 26a of the magnetic field 20a is minimal during at least the operating state (cf. FIG. 3).
  • the further spatial component 28a of the electromagnetic field 20a is at its maximum, specifically in the area 18a on the printed circuit board 14a.
  • the area 18a extends over the entire circumferential direction of the printed circuit board 14a (the area 18a is indicated by dashed lines).
  • the electronic unit 16a comprises at least one electronic element 32a with a first metal connection 34a and at least one second metal connection 36a.
  • the electronic element 32a has at least one capacitor 38a.
  • the first metal terminal 34a and the second metal terminal 36a are each arranged on opposite sides of the capacitor 38a.
  • the electronic element 32a has a side 70a.
  • the electronic element 32a is arranged on the printed circuit board 14a in such a way that the side 70a faces a center point 72a of the printed circuit board 14a (cf. FIG. 3).
  • a direction 60a which points from the first metal connection 34a to the second metal connection 36a, extends in the region 18a on the circuit board 14a at least substantially perpendicularly to a radial direction 56a of the circuit board 14a.
  • the electronic unit 16a has at least one further electronic element 62a with a further first metal connection 64a and at least one further second metal connection 66a.
  • the further electronic element 62a is configured identically to the electronic element 32a. It can be seen in FIG. 3 that the first metal connection 34a and at least the further first metal connection 64a are arranged facing one another in the region 18a on the circuit board 14a.
  • the electronic element 32a and at least the further electronic element 62a together form an electronic assembly.
  • the electronic unit 16a comprises a plurality of electronic elements, only the electronic element 32a and the further electronic element 62a being provided with a reference number for the sake of clarity.
  • the circuit board 14a and the receiving inductive element are electrically connected to one another (not shown).
  • the printed circuit board 14a has a main connection 78a on. Furthermore, the printed circuit board 14a has a further main connection 74a designed to correspond to the main connection 78a.
  • FIG. 4 shows a diagram of a temperature profile of a temperature of the electronic element 32a and at least of the further electronic element 62a by way of example.
  • An axis 86a forms a time axis, here measured in seconds, and an axis 88a a temperature axis, measured in Celsius.
  • Four temperature curves of four different electronic elements C+,1, C+,2, C-,1 and C-,2 are shown as examples. The positions of these electronic elements on the printed circuit board 14a are identified in FIG.
  • C+,1 is an electronic element very close to the main terminal 78a, here the positive main terminal 78a.
  • the electronic element C+, 2 is farther away from the main terminal 78a.
  • the electronic element C-,1 is arranged close to the main terminal 74a and the electronic element C-,2 is arranged farther from the main terminal 74a.
  • the diagram shows that the temperature profile of all four electronic elements C+,1, C+, 2, C-,1 and C-, 2 in at least the operating state due to the arrangement of the electronic unit 16a in the area 18a on the printed circuit board 14a at least in The behavior is essentially the same and the electronic elements C+, 1, C+, 2, C-, 1 and C-, 2 heat up uniformly and simultaneously at least in the operating state. Accordingly, a temperature development in at least the operating state in the region 18a behaves at least essentially homogeneously.
  • the electronic unit 16a comprises at least one electrical conductor track 80a, specifically a first electrical conductor track 80a, by means of which the electronic element 32a is connected at least to the main connection 78a (cf. FIG. 3).
  • the first electrical conductor track 80a is a positive electrical conductor track and connects the first metal connection 34a to at least the main connection 78a, which in the present case is embodied as a positive main connection by way of example.
  • electrical trace 80a connects electronic element 32a to at least the further electronic element 62a.
  • the electrical unit 16a has a second electrical conductor track 81a.
  • the second electrical conductor track 81a is intended to connect at least the electrical element 32a to the further main connection 74a in order to enable a current flow for at least the electrical element 32a.
  • the second electrical conductor track 81a is a negative electrical conductor track and connects the second metal connection 34a to at least the main connection 74a, which in the present case is embodied as a negative main connection, for example.
  • the first electrical conductor track 80a and the second electrical conductor track 81a are arranged in an alternating manner, namely alternately and overlapping in sections, in the region 18a.
  • the first electrical conductor track 80a is arranged between the second electrical conductor track 81a and the center point 72a of the printed circuit board 14a.
  • the second electrical conductor track 81a is arranged between the first electrical conductor track 80a and the center point 72a of the printed circuit board 14a (cf. FIG. 3).
  • FIGS. 1 to 4 A further exemplary embodiment of the invention is shown in FIGS.
  • the following descriptions are essentially limited to the differences between the exemplary embodiments, with reference being made to the description of the exemplary embodiment in FIGS. 1 to 4 with regard to components, features and functions that remain the same.
  • the letter a in the reference numbers of the exemplary embodiment in FIGS. 1 to 4 has been replaced by the letter b in the reference numbers of the exemplary embodiment in FIGS.
  • components with the same designation in particular with regard to components with the same reference numbers, reference can also be made in principle to the drawings and/or the description of the exemplary embodiment in FIGS.
  • Figures 5 and 6 show a printed circuit board 14b of a household appliance device 12b in an alternative embodiment of the invention, with Figure 5 showing an upper side of the printed circuit board 14b and Figure 6 showing an underside of the printed circuit board 14b.
  • the household appliance device 12b has an electronic unit 16b.
  • the electronic unit 16b comprises at least one electronic element 32b and at least one further electronic element 62b.
  • the printed circuit board 14b has a main connection 78b and the electronic unit 16b has at least one electrical conductor track 80b, specifically a first one electrical conductor track 80b, by means of which the electronic element 32b is connected at least to the main connection 78b.
  • the electronic element 32b and the further electronic element 62b are each individually connected to at least the main connection 78b.
  • the electronic unit 16b has at least one further first conductor track 82b, by means of which the further electronic element 62b is connected to at least the main connection 78b.
  • the electrical unit 16b has a second electrical conductor track 81b, which connects the electronic element 32b to a further main connection 74b of the printed circuit board 14b.
  • the electrical unit 16b has a further, second electrical conductor track 83b, which connects the further electronic element 32b to the further main connection 74b.
  • a number of conductor tracks 80b, 81b, 82b, 83b corresponds to twice the number of electronic elements 32b, 62b.
  • the first electrical conductor track 80b and/or the second electrical conductor track 81b and/or the further first electrical conductor track 82b and/or the further second electrical conductor track 83b can be arranged at least in sections on different sides of the printed circuit board 14b.
  • the first electrical conductor track 80b and/or the further first electrical conductor track 82b may be arranged at least partially or completely on a top side of the printed circuit board 14b.
  • the second electrical conductor track 81b and/or the further second electrical conductor track 83b could be arranged at least partially or completely on an underside of the printed circuit board 14b.

Abstract

L'invention concerne un dispositif d'appareil ménager (12a-b), en particulier un petit appareil ménager, comprenant : au moins une carte de circuit imprimé (14a-b), qui est exposée à au moins un champ magnétique (20a-b) dans au moins un état de fonctionnement ; et au moins une unité électronique (16a-b) située sur la carte de circuit imprimé (14a-b). Afin de fournir un dispositif générique ayant des propriétés améliorées en termes d'efficacité, selon l'invention, l'unité électronique (16a-b) est située au moins en partie dans une région (18a-b) sur la carte de circuit imprimé (14a-b) dans laquelle au moins une composante spatiale (26a-b) du champ magnétique (20a-b) est minimale pendant l'état de fonctionnement.
PCT/EP2022/076080 2021-10-13 2022-09-20 Dispositif d'appareil ménager, petit appareil ménager et système d'appareil électroménager WO2023061709A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21382917 2021-10-13
EP21382917.9 2021-10-13

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WO2023061709A1 true WO2023061709A1 (fr) 2023-04-20

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120000903A1 (en) * 2009-01-06 2012-01-05 Access Business Group International Llc Smart cookware
US20150163864A1 (en) * 2012-01-08 2015-06-11 Acess Business Group International LLC Inductive cooking system
US20170229909A1 (en) * 2016-02-05 2017-08-10 Peng Fa Design International Co. Ltd. Wireless temperature maintenance container
WO2017174634A1 (fr) * 2016-04-06 2017-10-12 Arcelik Anonim Sirketi Table de cuisson à chauffage par induction sur laquelle un appareil de cuisine est actionné
US20180352613A1 (en) * 2015-12-17 2018-12-06 BSH Hausgeräte GmbH Pad device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120000903A1 (en) * 2009-01-06 2012-01-05 Access Business Group International Llc Smart cookware
US20150163864A1 (en) * 2012-01-08 2015-06-11 Acess Business Group International LLC Inductive cooking system
US20180352613A1 (en) * 2015-12-17 2018-12-06 BSH Hausgeräte GmbH Pad device
US20170229909A1 (en) * 2016-02-05 2017-08-10 Peng Fa Design International Co. Ltd. Wireless temperature maintenance container
WO2017174634A1 (fr) * 2016-04-06 2017-10-12 Arcelik Anonim Sirketi Table de cuisson à chauffage par induction sur laquelle un appareil de cuisine est actionné

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