WO2017174634A1 - An induction heating cooktop whereon a kitchen appliance is operated - Google Patents

An induction heating cooktop whereon a kitchen appliance is operated Download PDF

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Publication number
WO2017174634A1
WO2017174634A1 PCT/EP2017/058069 EP2017058069W WO2017174634A1 WO 2017174634 A1 WO2017174634 A1 WO 2017174634A1 EP 2017058069 W EP2017058069 W EP 2017058069W WO 2017174634 A1 WO2017174634 A1 WO 2017174634A1
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WO
WIPO (PCT)
Prior art keywords
coil
heating
cooktop
energy transmission
induction heating
Prior art date
Application number
PCT/EP2017/058069
Other languages
French (fr)
Inventor
Metin OZTURK
Namik Yilmaz
Bekir DUMLU
Sercan SINIRLIOGLU
Ulas OKTAY
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2017174634A1 publication Critical patent/WO2017174634A1/en

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    • 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
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/06—Cook-top or cookware capable of communicating with each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the present invention relates to an induction heating cooktop whereon a kitchen appliance is operated.
  • induction heating cooktops various induction coil structures have been developed for heating vessels with different sizes.
  • the use of heaters that have concentric dual induction coils for heating both larger diameter vessels and smaller diameter vessels on the same heating zone with homogeneous heat distribution is known.
  • the heating process is performed by energizing the induction coils.
  • "smart" kitchen appliances on the induction heating cooktop that operate according to the wireless power transmission principle, is known.
  • On the kitchen appliances there are communication means that provide communication with the induction heating cooktop, a user interface that allows parameters such as temperature, mixer motor speed, etc.
  • the aim of the present invention is the realization of an induction heating cooktop whereon a wireless kitchen appliance is operated and wherein energy is transferred to the control unit of the said kitchen appliance without any problem.
  • the induction heating cooktop realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a heating coil that generates high power magnetic energy for heating a kitchen appliance that is suitable for wireless operation and that has a control unit, such as a microcontroller, or heating a ferromagnetic vessel without any electronic components.
  • the induction heating cooktop further comprises an energy transmission coil that is disposed concentrically with or side by side with the heating coil and that provides, separately from the heating coil, low level energy for the control unit of the kitchen appliance.
  • heating of the kitchen appliance and the energization of the control unit are performed by a heating coil and an energy transmission coil that is separate from the heating coil, each transmitting energy at different frequencies.
  • energy can be transmitted to the control unit uninterruptedly while the kitchen appliance is being heated and the kitchen appliance can be heated at the desired level, especially at a lower level without any problems while the control unit is being energized.
  • Figure 1 – is the schematic view of an induction heating cooktop whereon a wireless kitchen appliance is disposed in an embodiment of the present invention.
  • Figure 2 – is the schematic view of an induction heating cooktop whereon a wireless kitchen appliance is disposed in another embodiment of the present invention.
  • the induction heating cooktop (1) comprises a heating coil (2) that generates high power magnetic energy for heating a kitchen appliance (6) suitable for wireless operation or an ordinary ferromagnetic vessel (not shown in figures) on a heating zone (12) and a first power control circuit (4) that enables the heating coil (2) to be driven.
  • the kitchen appliance (6) comprises a control unit (7), for instance a microcontroller, that controls the operational parameters such as cooking temperature and cooking duration, a receiver coil (8) that receives the energy necessary for operating the control unit (7) from the induction heating cooktop (1) and a ferromagnetic base (9).
  • a control unit (7) for instance a microcontroller, that controls the operational parameters such as cooking temperature and cooking duration
  • a receiver coil (8) that receives the energy necessary for operating the control unit (7) from the induction heating cooktop (1) and a ferromagnetic base (9).
  • the induction heating cooktop (1) of the present invention comprises an energy transmission coil (3) that is disposed onto the heating zone (12), in the proximity of the heating coil (2), that is driven separately from the heating coil (2) by a second power control circuit (5) and that generates low level magnetic energy for the control unit (7) of the kitchen appliance (6), wherein the magnetic energy generated by the energy transmission coil (3) is received by the receiver coil (8).
  • the heating coil (2) and the energy transmission coil (3) are disposed in the heating zone (12) of the induction heating cooktop (1).
  • the heating coil (2) is used for heating the ferromagnetic base (9) of the kitchen appliance (6) placed onto the induction heating cooktop (1).
  • the energy transmission coil (3) without heating the kitchen appliance (6), is used for generating the low level energy necessary for the control unit (7).
  • the energy transmission coil (3) is operated by the second power control circuit (5) disposed in the induction heating cooktop (1). The processes of heating the kitchen appliance (6) and transmitting energy to the control unit (7) are carried out independently from each other.
  • the kitchen appliance (6) comprises a user interface (10) that is connected to the control unit (7) and that enables the operational parameters to be monitored and controlled, and the energy necessary for the user interface (10) is supplied from the energy transmission coil (3).
  • the kitchen appliance (6) is a food processor, comprising a mixer motor (11) connected to the control unit (7), and the energy necessary for the mixer motor (11) is supplied from the energy transmission coil (3)
  • the heating coil (2) and the energy transmission coil (3) form a dual-coil structure, wherein both coils (2, 3) are disposed inside the heating zone (12) concentrically.
  • the energy transmission coil (3) is the outer coil and the heating coil (2) is the inner coil ( Figure 1).
  • the heating coil (2) and the energy transmission coil (3) are disposed side by side inside the heating zone (12) ( Figure 2).
  • the heating coil (2) and/or the energy transmission coil (3) has circular windings ( Figure 1).
  • the heating coil (2) and/or the energy transmission coil (3) has quadrilateral windings ( Figure 2).
  • the heating coil (2) and the energy transmission coil (3) are operated at different frequencies.
  • the heating coil (2) is operated by means of the first power control circuit (4) at a frequency of 20-50 kHz and the energy transmission coil (3) is operated by means of the second power control circuit (5) at a frequency of 100 kHz or higher.
  • both of the first and second power control circuits (4, 5) that control the heating coil (2) and the energy transmission coil (3) respectively are half bridge series resonant circuits (HBSR) that have two resonant capacitors (not shown in figures) and two power switches (not shown in figures).
  • HBSR half bridge series resonant circuits
  • both of the first and second power control circuits (4, 5) that control the heating coil (2) and the energy transmission coil (3) respectively are single switch quasi resonant circuit (SSQR) that have a single resonant capacitor (not shown in figures) and a single power switches (not shown in figures).
  • SSQR single switch quasi resonant circuit
  • the energy necessary for the control unit (7) of the kitchen appliance (6) is supplied from an energy transmission coil (3) controlled separately from the heating coil (2).
  • the said processes are prevented from interfering with each other, and thus, the high power heating process and the low power energy transmission process for the kitchen appliance (6) are performed uninterruptedly.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
  • Induction Heating Cooking Devices (AREA)

Abstract

The present invention relates to an induction heating cooktop (1) comprising a heating coil (2) that generates high power magnetic energy for heating a kitchen appliance (6) that is suitable for wireless operation and that has a control unit (7) and a ferromagnetic base (9), or heating an ordinary ferromagnetic vessel on a heating zone (12), and a first power control circuit (4) that enables the heating coil (2) to be driven.

Description

AN INDUCTION HEATING COOKTOP WHEREON A KITCHEN APPLIANCE IS OPERATED
The present invention relates to an induction heating cooktop whereon a kitchen appliance is operated.
In induction heating cooktops, various induction coil structures have been developed for heating vessels with different sizes. The use of heaters that have concentric dual induction coils for heating both larger diameter vessels and smaller diameter vessels on the same heating zone with homogeneous heat distribution is known. Upon the detection of the vessel placed onto the dual induction coil heating zone, the heating process is performed by energizing the induction coils. In addition to the ferromagnetic vessels, the use of "smart" kitchen appliances on the induction heating cooktop, that operate according to the wireless power transmission principle, is known. On the kitchen appliances, there are communication means that provide communication with the induction heating cooktop, a user interface that allows parameters such as temperature, mixer motor speed, etc. to be monitored and adjusted, a temperature sensor and a control unit that controls the operation of all the electronic components, all together giving "smart" features to the said appliances. Low level electrical power is required for energizing the control unit. This electrical power is supplied from the induction coil in the induction heating cooktop by means of a receiver coil integrated with the base of the kitchen appliance. The receiver coil picks up energy partially from the induction coil and energizes the control unit and other components mentioned above. The cause of the problems encountered in such a system is that the induction coil that is used in the vessel heating process is concurrently used for low level energy transfer. Since both the high power heating process and the low level energy transfer are performed by the same induction coil, especially in cases when energy transfer is carried out simultaneously at two different levels, interruptions in the energy transfer occur. For instance, the base of the kitchen appliance cannot be heated while energy is transferred to the control unit thereof, or energy cannot be transferred to the control unit thereof while the base thereof is being heated.
In the European Patent Applications No. EP2859776, EP2878169, EP2906083, EP2907363 and EP2921031, a wireless kitchen appliance operated on an induction heating cooktop is disclosed. In these patent applications, in the induction heating cooktop, the induction coil that enables ferromagnetic vessels to be heated is used concurrently for supplying power to the wireless kitchen appliance but problems occur in energizing the control unit of the wireless kitchen appliance.
The aim of the present invention is the realization of an induction heating cooktop whereon a wireless kitchen appliance is operated and wherein energy is transferred to the control unit of the said kitchen appliance without any problem.
The induction heating cooktop realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof comprises a heating coil that generates high power magnetic energy for heating a kitchen appliance that is suitable for wireless operation and that has a control unit, such as a microcontroller, or heating a ferromagnetic vessel without any electronic components. The induction heating cooktop further comprises an energy transmission coil that is disposed concentrically with or side by side with the heating coil and that provides, separately from the heating coil, low level energy for the control unit of the kitchen appliance.
In the induction heating cooktop of the present invention, heating of the kitchen appliance and the energization of the control unit are performed by a heating coil and an energy transmission coil that is separate from the heating coil, each transmitting energy at different frequencies. Thereby, energy can be transmitted to the control unit uninterruptedly while the kitchen appliance is being heated and the kitchen appliance can be heated at the desired level, especially at a lower level without any problems while the control unit is being energized.
The induction heating cooktop realized in order to attain the aim of the present invention is illustrated in the attached figures, where:
Figure 1 – is the schematic view of an induction heating cooktop whereon a wireless kitchen appliance is disposed in an embodiment of the present invention.
Figure 2 – is the schematic view of an induction heating cooktop whereon a wireless kitchen appliance is disposed in another embodiment of the present invention.
The elements illustrated in the figures are numbered as follows:
1- Induction heating cooktop
2- Heating coil
3- Energy transmission coil
4- First power control circuit
5- Second power control circuit
6- Kitchen appliance
7- Control unit
8- Receiver coil
9- Base
10- User interface
11- Mixer motor
12- Heating zone
The induction heating cooktop (1) comprises a heating coil (2) that generates high power magnetic energy for heating a kitchen appliance (6) suitable for wireless operation or an ordinary ferromagnetic vessel (not shown in figures) on a heating zone (12) and a first power control circuit (4) that enables the heating coil (2) to be driven.
The kitchen appliance (6) comprises a control unit (7), for instance a microcontroller, that controls the operational parameters such as cooking temperature and cooking duration, a receiver coil (8) that receives the energy necessary for operating the control unit (7) from the induction heating cooktop (1) and a ferromagnetic base (9).
The induction heating cooktop (1) of the present invention comprises an energy transmission coil (3) that is disposed onto the heating zone (12), in the proximity of the heating coil (2), that is driven separately from the heating coil (2) by a second power control circuit (5) and that generates low level magnetic energy for the control unit (7) of the kitchen appliance (6), wherein the magnetic energy generated by the energy transmission coil (3) is received by the receiver coil (8).
The heating coil (2) and the energy transmission coil (3) are disposed in the heating zone (12) of the induction heating cooktop (1). The heating coil (2) is used for heating the ferromagnetic base (9) of the kitchen appliance (6) placed onto the induction heating cooktop (1). The energy transmission coil (3), without heating the kitchen appliance (6), is used for generating the low level energy necessary for the control unit (7). The energy transmission coil (3) is operated by the second power control circuit (5) disposed in the induction heating cooktop (1). The processes of heating the kitchen appliance (6) and transmitting energy to the control unit (7) are carried out independently from each other. Thereby, energy can be transmitted to the control unit (7) uninterruptedly while the base (9) of the kitchen appliance (6) is being heated and the problem of failing to heat the base (9) at a desired level, especially at a lower level while the control unit (7) is being energized is solved.
In an embodiment of the present invention, the kitchen appliance (6) comprises a user interface (10) that is connected to the control unit (7) and that enables the operational parameters to be monitored and controlled, and the energy necessary for the user interface (10) is supplied from the energy transmission coil (3).
In another embodiment of the present invention, the kitchen appliance (6) is a food processor, comprising a mixer motor (11) connected to the control unit (7), and the energy necessary for the mixer motor (11) is supplied from the energy transmission coil (3)
In another embodiment of the present invention, the heating coil (2) and the energy transmission coil (3) form a dual-coil structure, wherein both coils (2, 3) are disposed inside the heating zone (12) concentrically. In this embodiment, preferably the energy transmission coil (3) is the outer coil and the heating coil (2) is the inner coil (Figure 1).
In another embodiment of the present invention, the heating coil (2) and the energy transmission coil (3) are disposed side by side inside the heating zone (12) (Figure 2).
In another embodiment of the present invention, the heating coil (2) and/or the energy transmission coil (3) has circular windings (Figure 1).
In another embodiment of the present invention, the heating coil (2) and/or the energy transmission coil (3) has quadrilateral windings (Figure 2).
In another embodiment of the present invention, the heating coil (2) and the energy transmission coil (3) are operated at different frequencies. For instance, the heating coil (2) is operated by means of the first power control circuit (4) at a frequency of 20-50 kHz and the energy transmission coil (3) is operated by means of the second power control circuit (5) at a frequency of 100 kHz or higher.
In another embodiment of the present invention, both of the first and second power control circuits (4, 5) that control the heating coil (2) and the energy transmission coil (3) respectively are half bridge series resonant circuits (HBSR) that have two resonant capacitors (not shown in figures) and two power switches (not shown in figures).
In another embodiment of the present invention, both of the first and second power control circuits (4, 5) that control the heating coil (2) and the energy transmission coil (3) respectively are single switch quasi resonant circuit (SSQR) that have a single resonant capacitor (not shown in figures) and a single power switches (not shown in figures).
While a heating coil (2) is being used for heating the "smart" kitchen appliance (6) placed onto the induction heating cooktop (1) of the present invention, the energy necessary for the control unit (7) of the kitchen appliance (6) is supplied from an energy transmission coil (3) controlled separately from the heating coil (2). By separating the heating and energy transmission processes, the said processes are prevented from interfering with each other, and thus, the high power heating process and the low power energy transmission process for the kitchen appliance (6) are performed uninterruptedly.

Claims (12)

  1. An induction heating cooktop (1) comprising a heating coil (2) for heating a kitchen appliance (6) that is suitable for wireless operation on a heating zone (12) and that has a control unit (7), a receiver coil (8) that supplies the energy necessary for the control unit (7) and a ferromagnetic base (9), and a first power control circuit (4) that the heating coil (2) to be driven, characterized by an energy transmission coil (3) that is disposed inside the heating zone (12) in the proximity of the heating coil (2), that is driven separately from the heating coil (2) by a second power control circuit (5), and that generates low level energy for the control unit (7) of the kitchen appliance (6), wherein the magnetic energy generated by the energy transmission coil (3) is received by the receiver coil (8)
  2. An induction heating cooktop (1) as in Claim 1, characterized by the energy transmission coil (3) that provides the energy necessary for a user interface (10) that is connected to the control unit (7) of the kitchen appliance (6).
  3. An induction heating cooktop (1) as in Claim 1, characterized by the energy transmission coil (3) that provides the energy necessary for a mixer motor (11) that is connected to the control unit (7) of the kitchen appliance (6).
  4. An induction heating cooktop (1) as in Claim 1, characterized by the heating coil (2) and the energy transmission coil (3) that are disposed concentrically inside the heating zone (12).
  5. An induction heating cooktop (1) as in Claim 4, characterized by the heating coil (2) and the energy transmission coil (3) that are disposed inside the heating zone (12), wherein the energy transmission coil (3) is positioned the outer coil and the heating coil (2) is positioned the inner coil.
  6. An induction heating cooktop (1) as in Claim 1, characterized by the heating coil (2) and the energy transmission coil (3) that are disposed side by side inside the heating zone (12).
  7. An induction heating cooktop (1) as in Claim 1, characterized by the heating coil (2) and/or the energy transmission coil (3) that comprise circular coils.
  8. An induction heating cooktop (1) as in Claim 1, characterized by the heating coil (2) and/or the energy transmission coil (3) that comprise quadrilateral coils.
  9. An induction heating cooktop (1) as in Claim 1, characterized by the heating coil (2) and the energy transmission coil (3) that are operated at different frequencies.
  10. An induction heating cooktop (1) as in Claim 9, characterized by the heating coil (2) that is operated by means of the first power control circuit (4) at a frequency of 20-50 kHz and the energy transmission coil (3) that is operated by means of the second power control circuit (5) at a frequency of 100 kHz or higher.
  11. An induction heating cooktop (1) as in Claim 1, characterized by the first and second power control circuits (4, 5) that are half bridge series resonant circuits comprising two resonant capacitors and two power switches.
  12. An induction heating cooktop (1) as in Claim 1, characterized by the first and second power control circuits (4, 5) that are single switch quasi resonant circuits comprising a single resonant capacitor and a single power switch.
PCT/EP2017/058069 2016-04-06 2017-04-05 An induction heating cooktop whereon a kitchen appliance is operated WO2017174634A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2016/04473A TR201604473A2 (en) 2016-04-06 2016-04-06 OVEN INDUCTION HEATER WITH KITCHEN DEVICE ON
TRA2016/04473 2016-04-06

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3893602A1 (en) * 2020-04-06 2021-10-13 Miele & Cie. KG Inductive kitchen system
EP3910243A1 (en) * 2019-01-11 2021-11-17 LG Electronics Inc. Cooking appliance
EP3973832A1 (en) * 2020-09-28 2022-03-30 Koninklijke Philips N.V. Apparatus and method for use with induction heating
WO2023061709A1 (en) * 2021-10-13 2023-04-20 BSH Hausgeräte GmbH Household appliance device, small household appliance, and household appliance system
US12082329B2 (en) * 2019-01-11 2024-09-03 Lg Electronics, Inc. Cooking appliance

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011044422A (en) * 2009-07-22 2011-03-03 Mitsubishi Electric Corp Induction heating cooker
EP2846607A1 (en) * 2013-09-05 2015-03-11 Electrolux Appliances Aktiebolag An induction cooking hob including a cooking area with three or more induction coils and a method for controlling a cooking area
EP2859776A1 (en) 2012-06-06 2015-04-15 Arçelik Anonim Sirketi An induction heating cooktop and a wireless kitchen appliance
EP2878169A1 (en) 2012-07-27 2015-06-03 Arçelik Anonim Sirketi An induction heating cooktop and a wireless kitchen appliance
EP2907363A1 (en) 2012-10-11 2015-08-19 Arçelik Anonim Sirketi A wireless cooking appliance operated on an induction heating cooktop
EP2906083A1 (en) 2012-10-11 2015-08-19 Arçelik Anonim Sirketi A wireless cooking appliance operated on an induction heating cooktop
EP2921031A1 (en) 2012-11-14 2015-09-23 Arçelik Anonim Sirketi A food preparation appliance operated on an induction heating cooktop
WO2016185305A1 (en) * 2015-05-21 2016-11-24 BSH Hausgeräte GmbH Cooking utensil

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011044422A (en) * 2009-07-22 2011-03-03 Mitsubishi Electric Corp Induction heating cooker
EP2859776A1 (en) 2012-06-06 2015-04-15 Arçelik Anonim Sirketi An induction heating cooktop and a wireless kitchen appliance
EP2878169A1 (en) 2012-07-27 2015-06-03 Arçelik Anonim Sirketi An induction heating cooktop and a wireless kitchen appliance
EP2907363A1 (en) 2012-10-11 2015-08-19 Arçelik Anonim Sirketi A wireless cooking appliance operated on an induction heating cooktop
EP2906083A1 (en) 2012-10-11 2015-08-19 Arçelik Anonim Sirketi A wireless cooking appliance operated on an induction heating cooktop
EP2921031A1 (en) 2012-11-14 2015-09-23 Arçelik Anonim Sirketi A food preparation appliance operated on an induction heating cooktop
EP2846607A1 (en) * 2013-09-05 2015-03-11 Electrolux Appliances Aktiebolag An induction cooking hob including a cooking area with three or more induction coils and a method for controlling a cooking area
WO2016185305A1 (en) * 2015-05-21 2016-11-24 BSH Hausgeräte GmbH Cooking utensil

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3910243A1 (en) * 2019-01-11 2021-11-17 LG Electronics Inc. Cooking appliance
US11683865B2 (en) 2019-01-11 2023-06-20 Lg Electronics Inc. Cooking appliance
US12082329B2 (en) * 2019-01-11 2024-09-03 Lg Electronics, Inc. Cooking appliance
EP3893602A1 (en) * 2020-04-06 2021-10-13 Miele & Cie. KG Inductive kitchen system
EP3973832A1 (en) * 2020-09-28 2022-03-30 Koninklijke Philips N.V. Apparatus and method for use with induction heating
WO2022064076A1 (en) 2020-09-28 2022-03-31 Koninklijke Philips N.V. Apparatus and method for use with induction heating
WO2023061709A1 (en) * 2021-10-13 2023-04-20 BSH Hausgeräte GmbH Household appliance device, small household appliance, and household appliance system

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