WO2023117506A1 - Dispositif de réception d'énergie transférée par induction - Google Patents

Dispositif de réception d'énergie transférée par induction Download PDF

Info

Publication number
WO2023117506A1
WO2023117506A1 PCT/EP2022/085260 EP2022085260W WO2023117506A1 WO 2023117506 A1 WO2023117506 A1 WO 2023117506A1 EP 2022085260 W EP2022085260 W EP 2022085260W WO 2023117506 A1 WO2023117506 A1 WO 2023117506A1
Authority
WO
WIPO (PCT)
Prior art keywords
receiving device
circuit
power tap
energy receiving
induction
Prior art date
Application number
PCT/EP2022/085260
Other languages
German (de)
English (en)
Inventor
Ignacio Lope Moratilla
Emilio PLUMED VELILLA
Jesus Acero Acero
Sergio Llorente Gil
Tomas Cabeza Gozalo
Pablo Jesus Hernandez Blasco
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 WO2023117506A1 publication Critical patent/WO2023117506A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/05—Capacitor coupled rectifiers
    • 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
    • H05B6/06—Control, e.g. of temperature, of power
    • H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like

Definitions

  • the invention relates to an induction energy receiving device according to the preamble of claim 1 and an electrical device with such an induction energy receiving device according to claim 12.
  • Induction energy receiving devices with an induction coil and a capacitor unit are known from the prior art, with an electrical load being arranged in series or in parallel with the entire capacitor unit.
  • the object of the invention consists in particular, but not limited thereto, in providing a generic device with improved properties in terms of cost savings, greater efficiency and/or fewer components.
  • the object is achieved according to the invention by the features of claim 1, while advantageous refinements and developments of the invention can be found in the dependent claims.
  • the invention is based on an induction energy receiving device, in particular a household appliance device, with at least one resonant circuit which has at least one induction coil, which is provided for receiving inductively transmitted energy, and at least one capacitor unit, the capacitor unit being connected in series with the induction coil and wherein the capacitor unit has a capacitor branch which has a series connection of at least two, in particular at least three, four, five, six or more capacitors.
  • the inductive energy receiving device has a power tap which is arranged between the two capacitors.
  • Such a configuration can be achieved in particular in that electrical circuits, in particular for low-power applications, can be operated directly from the power tap, i.e. in particular without the use of a converter circuit, or that a converter circuit connected to the power tap is designed for lower electrical voltages, i.e. in particular equipped with smaller and / or cheaper components can be. Furthermore By tapping the power between the capacitors, an output voltage can be achieved which has a clear direct voltage component that is in particular greater than an alternating voltage component, so that a rectifier circuit or other converter circuits can be dispensed with, for example.
  • the induction energy receiving device is provided in particular to obtain electrical energy from a magnetic, in particular electromagnetic, alternating field which is generated in particular by the transmission unit.
  • the transmission unit is designed as a hob inductor.
  • the transmission unit it is possible for the transmission unit to be formed by a device that is separate from a hob.
  • the alternating magnetic field has a frequency between 1 kHz and 200 kHz, in particular between 30 k.
  • the induction energy receiving device is designed in particular as a household appliance device.
  • a “household appliance device” is to be understood in particular as meaning at least a part, in particular a subassembly, of a household appliance, in particular a small household appliance.
  • a household appliance having the household appliance device could be a mixer, an automatic cooker, a toaster, a peripheral device such as a sensor module that in particular communicates wirelessly with another kitchen appliance, or the like.
  • the household appliance is designed as an intelligent cooking utensil.
  • the induction coil is in particular an electrical coil.
  • the induction coil is preferably designed as a flat coil.
  • the induction coil is intended to convert an alternating magnetic field into an alternating current and to provide it at/between two output contacts of the induction coil.
  • the induction coil has at least one electrical conductor which is wound, for example spirally, in particular a stranded wire.
  • the capacitor unit is in particular an electrical assembly with two output contacts, in particular a two-terminal network.
  • the capacitor unit has one, two or more capacitors which are connected in series between the output contacts, connected in parallel with one another or arranged in a combination of series connection and parallel connection with one another.
  • the capacitor unit is provided to convert the current received from the induction coil into a voltage.
  • the capacitor unit is connected in parallel with the induction coil.
  • capacitor branches of the capacitor unit are connected, in particular parallel to one another, between the output contacts.
  • a power tap is, in particular, an electrical contact that is provided to discharge electrical energy from the capacitor unit and, in particular, to provide further electrical components or circuits.
  • Provided is to be understood in particular as being specially designed and/or equipped.
  • the fact that an object is provided for a specific function is to be understood in particular to mean that the object fulfills and/or executes this specific function in at least one application and/or operating state.
  • the induction energy receiving device has a further power tap which is different from the power tap, so that a voltage drops between the power tap and the further power tap which is at least as great as a voltage across one of the two capacitors. In this way, in particular, a simple circuit can be achieved.
  • the induction energy receiving device has a load circuit which is connected directly to the power tap and the further power tap and is intended to obtain electrical energy via the power tap and the further power tap, in particular by means of an output voltage dropping between these power taps.
  • the number of components can be reduced in that no additional converter circuit is used, but instead a load circuit is connected directly to the power tap.
  • the inductive energy receiving device has a converter circuit which is provided for obtaining electrical energy via the power tap and the further power tap and making it available to a load circuit.
  • a converter circuit can be used to achieve an output voltage meets the specific requirements, in particular with regard to voltage, current, stability, constancy and/or signal form.
  • the converter circuit is, for example, a rectifier circuit, a step-down converter circuit, a step-up converter circuit, an inverse converter circuit, a linear regulator circuit, a bridge circuit and/or a flyback converter circuit.
  • the load circuit has in particular at least one sensor circuit, a communication circuit, in particular for wireless communication, a lighting circuit, in particular at least one LED, and/or a control circuit, in particular an electronic control unit, for example with at least one processor and/or an ASIC.
  • the additional power tap can be connected directly to the induction coil, in particular to an output contact of the induction coil.
  • At least two capacitors in particular capacitors of the power branch and/or the capacitor unit, be connected in series between the power tap and the further power tap.
  • the capacitor unit preferably has at least one additional capacitor branch, in particular at least two, three, four, five or more additional capacitor branches, which is/are connected in parallel with the capacitor branch.
  • at least one additional capacitor branch in particular at least two, three, four, five or more additional capacitor branches, which is/are connected in parallel with the capacitor branch.
  • a high capacitance of the capacitor unit can be achieved.
  • a high dielectric strength can be achieved by a large number of capacitors per capacitor branch.
  • a cost-effective and/or space-saving configuration can be achieved by a large number of capacitors per capacitor branch, in particular since many small capacitors with low capacitance can be used instead of a few large capacitors with high capacitance.
  • the at least one further capacitor branch has capacitors that are the same as the two capacitors.
  • All capacitors of the capacitor unit preferably have the same or identical properties, in particular within the framework of the usual standards, in particular at least with regard to their electrical capacitances, dimensions and/or their electric strengths. In particular, an inexpensive and/or simple circuit/construction can be achieved.
  • the induction energy receiving device has at least one main consumer circuit which is connected in series with the induction coil and the capacitor unit in the resonant circuit or which is connected in parallel with the capacitor unit and/or the induction coil.
  • the main load circuit has at least one power element, in particular a motor and/or an electrical/ohmic heating element.
  • the main load circuit is intended to take up electrical power of at least 500 W, in particular at least 1000 W, in at least one operating mode, which is provided in the operating mode in particular by means of the resonant circuit and/or received by the induction coil.
  • an electrical appliance in particular a household appliance, preferably a small household appliance, is proposed with at least one induction energy receiving device as described above.
  • the electrical device is a small electrical device, in particular with a power consumption of less than 50 W, in particular less than 20 W, preferably less than 10 W.
  • the electrical device has at least one energy store, in particular a rechargeable battery, which is provided for the purpose of To be loaded induction energy receiving device.
  • the electrical device is embodied as consumer electronics, in particular as a tablet, smartphone, headphones, loudspeaker or the like.
  • the household appliance is designed as a mixer, toaster or other food processor.
  • the small household appliance is designed as a peripheral device, in particular as a sensor module for another kitchen appliance.
  • the small household appliance is designed as an intelligent cooking utensil with integrated sensors, with the induction energy receiving device being provided in particular to supply a sensor and a control unit of the cooking utensil with energy, while the Cookware itself is heated by means of the alternating magnetic field generated by the transmitting unit, in this case by a hob inductor.
  • the induction energy receiving device should not be limited to the application and embodiment described above.
  • the induction energy receiving device can have a number of individual elements, components and units that differs from the number specified here in order to fulfill a function described herein.
  • FIG. 1 shows an electrical device according to the invention in a cross-sectional view
  • FIG. 2 shows a circuit diagram of an inductive energy receiving device according to the invention
  • FIG. 3 shows a circuit diagram of an inductive energy receiving device according to the invention
  • FIG. 5 shows a voltage sequence diagram for the inductive energy receiving device according to FIG.
  • FIG. 1 shows an electrical device 10.
  • the electrical device 10 is designed as a small household appliance.
  • the electrical device 10 is designed as an intelligent cooking utensil.
  • the electrical device 10 is intended to be set up on a transmission unit 40 .
  • the transmission unit 40 is designed as a hob.
  • the transmission unit 40 has a mounting plate 42, for example a hob plate, which is intended to carry the electrical device 10 to/during operation.
  • the transmission unit 40 has an inductor 44, here a hob inductor, which is intended to generate an alternating magnetic field.
  • the transmission unit 40 also has a magnetic field bundling unit 46, for example a ferrite plate, which is arranged below the inductor 44, in particular opposite the mounting plate 42.
  • the transmission unit 40 has a shielding unit 48, for example an aluminum sheet, which is arranged below the inductor 44 and in particular below the magnetic field bundling unit 46.
  • the electrical device 10 has an induction energy receiving device 20 .
  • the induction energy receiving device 20 is designed as a household appliance device.
  • FIG. 2 shows the induction energy receiving device 20.
  • the induction energy receiving device 20 has an oscillating circuit.
  • the resonant circuit has an induction coil 22 which is provided for receiving inductively transmitted energy.
  • the induction coil 22 is intended to receive energy transmitted inductively by means of the inductor 44 of the transmission unit 40 .
  • the resonant circuit also has a capacitor unit 24 .
  • the capacitor unit 24 is connected in series with the induction coil 22 .
  • the capacitor unit 24 is connected in parallel with the induction coil 22 .
  • the capacitor unit 24 has a capacitor branch 26 which has a series connection of at least two, here six, capacitors 28 (of which only one is provided with a reference symbol for the sake of clarity).
  • the induction energy receiving device 20 has a power tap 27 which is arranged between the capacitors 28 .
  • the inductive energy receiving device 20 has a further power tap 29, which is different from the power tap 27, so that a voltage V 2 drops between the power tap 27 and the further power tap 29, which is at least as great as a voltage across one of the two capacitors 28 Precisely one of the capacitors 28 is arranged between the power tap 27 and the further power tap 29 .
  • the additional power tap 29 is connected directly to the induction coil 22 .
  • the induction energy receiving device 20 has a load circuit 30 which is connected directly to the power tap 27 and the further power tap 29 is connected and is intended to obtain electrical energy via the power tap 27 and the further power tap 29 .
  • the load circuit 30 comprises, for example, at least one sensor circuit, a communication circuit, a lighting circuit and/or a control circuit.
  • the capacitor unit 24 has at least one additional capacitor branch 26', here for example five additional capacitor branches 26'.
  • the other capacitor branches 26' are connected in parallel to the capacitor branch 26 in at least one operating state.
  • the at least one further capacitor branch 26' has capacitors 28 which are the same as or identical to the two capacitors 28 of the capacitor branch 26.
  • the further capacitor branches 26' each have the same number of capacitors 28, with the capacitors 28 of a respective capacitor branch 26, 26' are preferably connected in series with one another.
  • the capacitor branch 26 and the further capacitor branches 26′ in particular each have the same total capacitance.
  • the capacitors of the further capacitor branches are of a different type than the capacitors of the capacitor branch and/or the further capacitor branches have capacitances that deviate from a capacitance of the capacitor branch.
  • the further power tap can be arranged between two, in particular two other, series-connected capacitors of the capacitor branch or one of the further capacitor branches.
  • the inductive energy receiving device 20 can have at least one main consumer circuit 36 which is connected in series with the induction coil 22 and the capacitor unit 24 in the resonant circuit or which is connected in parallel with the capacitor unit 24 and/or the induction coil 22 (indicated by dashed lines).
  • the main load circuit 36 may include a converter circuit.
  • FIG. 3 shows an alternative embodiment of an induction energy receiving device 20a.
  • At least two capacitors 28a, here for example five capacitors 28a, of a capacitor branch 26a are connected in series between a power tap 27a and a further power tap 29a.
  • the number of capacitors 28a and/or a proportion of the capacitors 28a of the capacitor branch 26a can be selected depending on the application.
  • FIG. 4 shows a further embodiment of an induction energy receiving device 20b in the form of an equivalent circuit diagram.
  • the capacitors 28b shown here can stand for individual capacitors or for series and/or parallel circuits of capacitors in accordance with the preceding examples.
  • the induction energy receiving device 20b has a converter circuit 32b, which is intended to obtain electrical energy via a power tap 27b and a further power tap 29b and to provide it to a load circuit 30b.
  • the converter circuit 32b is a step-down converter circuit, but can alternatively, depending on the application, also be a step-up converter circuit, an inverse converter circuit, a linear regulator circuit, a bridge circuit, a flyback converter circuit, a rectifier circuit and/or a combination of these.
  • FIG. 5 shows a profile of various voltages Vi, V2, V3 of the induction energy receiving device 20b during operation. A first of the voltages V1 drops across the entire capacitor unit 24b. A second of the voltages V2 drops between the power tap 27b and the further power tap 29b. A third of the voltages V 3 drops across the outputs of the converter circuit 32b, in particular across the load circuit 30b.
  • the second of the voltages V 2 already has a significant DC voltage component, so that depending on the application at least the use of a rectifier circuit can be dispensed with.
  • a constant voltage V3 can be set by suitably selecting a sampling rate of the step-down converter as a function of an effective value of the voltage V1, which is determined in particular by a distance and/or an orientation of the electrical device to the transmission unit or a transmission power of the transmission unit. In particular, a voltage V3 of about 10 V can be achieved with a power of about 10 W.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

L'invention concerne un dispositif de réception d'énergie transférée par induction, en particulier un dispositif pour appareil électroménager, qui comprend au moins un circuit résonnant, pourvu d'au moins une bobine d'induction (22) conçue pour recevoir de l'énergie transférée par induction, et au moins un ensemble condensateur(s) (24), l'ensemble condensateur(s) (24) étant monté en série avec la bobine d'induction (22), et l'ensemble condensateur(s) (24) comprenant une branche (26) comportant un montage série d'au moins deux condensateurs (28). Le but de l'invention est d'obtenir une efficacité accrue et de permettre des économies en termes de composants et/ou de coût. À cet effet, le dispositif de réception d'énergie transférée par induction comporte au moins une prise de puissance (27) disposée entre les deux condensateurs (28).
PCT/EP2022/085260 2021-12-20 2022-12-09 Dispositif de réception d'énergie transférée par induction WO2023117506A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21383159 2021-12-20
EP21383159.7 2021-12-20

Publications (1)

Publication Number Publication Date
WO2023117506A1 true WO2023117506A1 (fr) 2023-06-29

Family

ID=78957796

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/085260 WO2023117506A1 (fr) 2021-12-20 2022-12-09 Dispositif de réception d'énergie transférée par induction

Country Status (1)

Country Link
WO (1) WO2023117506A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8901857B2 (en) * 2008-05-23 2014-12-02 Osram Gesellschaft Mit Beschraenkter Haftung Wireless supplyable lighting module
US20170098961A1 (en) * 2014-02-07 2017-04-06 Powerbyproxi Limited Inductive power receiver with resonant coupling regulator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8901857B2 (en) * 2008-05-23 2014-12-02 Osram Gesellschaft Mit Beschraenkter Haftung Wireless supplyable lighting module
US20170098961A1 (en) * 2014-02-07 2017-04-06 Powerbyproxi Limited Inductive power receiver with resonant coupling regulator

Similar Documents

Publication Publication Date Title
DE102017213291B3 (de) Schaltungsvorrichtung zum Steuern einer in ihrer Transparenz schaltbaren Verglasung sowie schaltbare Verglasungsanordnung, Kraftfahrzeug und Verfahren zum Steuern einer in ihrer Transparenz schaltbaren Verglasung
EP2744299A1 (fr) Dispositif domestique de chauffage par induction
DE102018216236A1 (de) Ladeschaltung für einen fahrzeugseitigen elektrischen Energiespeicher
DE102020118393A1 (de) Kontaktlose energieversorgungseinrichtung
WO2020064429A1 (fr) Circuit de charge destiné à un accumulateur d'énergie électrique embarqué dans un véhicule
EP2520131A1 (fr) Système d'appareil de cuisson
EP2744300B1 (fr) Dispositif domestique de chauffage par induction
EP2506673B1 (fr) Plaque de cuisson a induction
EP2692202B1 (fr) Dispositif de chauffage par induction
WO2023117506A1 (fr) Dispositif de réception d'énergie transférée par induction
EP2515608B1 (fr) Dispositif d'appareil ménager
AT513220B1 (de) Einrichtung zur resonant - induktiven Energieübertragung
DE102016013056A1 (de) Galvanisch getrennte Gleichspannungswandlung mittels unterschiedlicher Schaltfrequenzen
DE102016207929A1 (de) Sekundäreinheit mit Spannungsanpassung für induktives Laden
DE102018203281A1 (de) Synchronkonverter mit frequenzstabiler Regelung
EP2706817B1 (fr) Plaque de cuisson
EP2786637B1 (fr) Dispositif de chauffage par induction
EP2506667B1 (fr) Dispositif de chauffage à induction
EP2506670B1 (fr) Dispositif de chauffage à induction
DE102012206940A1 (de) Induktionsheizvorrichtung
WO2023110672A1 (fr) Dispositif de réception d'énergie par induction
EP2692203B1 (fr) Dispositif de chauffage par induction
WO2016071824A1 (fr) Dispositif pour appareil de cuisson
EP1273084A1 (fr) Dispositif de commutation permettant l'exploitation de composants electriques ou electroniques dans une automobile avec un reseau de bord a deux tensions
DE102020103921A1 (de) Betriebsvorrichtung und Verfahren zum Betreiben einer Leuchtmittelanordnung

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22817798

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2022817798

Country of ref document: EP

Effective date: 20240722