# US 12,772,347 B2 · Domestic appliance device and method for operating a domestic appliance device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,772,347 B2 - Document ID: US12772347B2 - Status: Granted - Kind: B2 - Application number: 18/021,209 - Filed: 2021-08-02 - Published: 2023-10-12 - Granted: 2026-10-20 - Earliest claimed: 2020-09-02 - Assignees: BSH Hausgeräte GmbH - Applicants: BSH Hausgeräte GmbH - Inventors: Arturo Acevedo Simon; Nicolas Blasco Rueda; Carlos Calvo Mestre; Cristina Diez Esteban; Diego Puyal Puente - Web page: https://patentgrep.com/patent/US12772347B2 ## CPC - H05B 6/065: {using coordinated control of multiple induction coils} - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract A household appliance apparatus includes a first inverter, a second inverter, a first phase terminal designed for electrical connection to a first phase of a power supply network, a second phase terminal designed for electrical connection to a second phase of the power supply network, and a switching arrangement configured to assign each of the first and second inverters to each of the first and second phase terminals. ## Claims ### Claim 1 A household appliance apparatus, comprising: a first inverter; a second inverter; a first phase terminal designed for electrical connection to a first phase of a power supply network; a second phase terminal designed for electrical connection to a second phase of the power supply network; and a switching arrangement configured to assign each of the first and second inverters to each of the first and second phase terminals, wherein the switching arrangement includes a configuration switching unit configured to connect the first inverter and the second inverter in parallel for a common supply of one of a plurality of heating units. ### Claim 2 (depends on 1) The household appliance apparatus of claim 1, constructed in a form of a cooktop apparatus. ### Claim 3 (depends on 1) The household appliance apparatus of claim 1, further comprising a third inverter, said switching arrangement configured to assign the third inverter to each of the first and second phase terminals. ### Claim 4 (depends on 1) The household appliance apparatus of claim 1, further comprising a fourth inverter, said switching arrangement configured to assign the fourth inverter to each of the first and second phase terminals. ### Claim 5 (depends on 1) The household appliance apparatus of claim 1, further comprising a third phase terminal designed for electrical connection to a third phase of the power supply network, said switching arrangement configured to assign each of the first and second inverters to the third phase terminal. ### Claim 6 (depends on 1) The household appliance apparatus of claim 1, further comprising a plurality of heating units, said switching arrangement configured to assign the plurality of heating units to different ones of the first and second phase terminals. ### Claim 7 (depends on 6) The household appliance apparatus of claim 6, wherein at least two of the plurality of heating units are configured as bridge heating units which at least partially form a continuous heating zone. ### Claim 8 (depends on 7) The household appliance apparatus of claim 7, further comprising a control unit configured to assign in at least one operating state the bridge heating units to different ones of the first and second phase terminals via the switching arrangement. ### Claim 9 (depends on 1) The household appliance apparatus of claim 1, wherein the switching arrangement includes an isolating switching element configured to isolate in at least one switched-off operating state all connections between the first and second phase terminals and the first and second inverters. ### Claim 10 (depends on 9) The household appliance apparatus of claim 9, wherein the isolating switching element is directly connected in terms of circuit technology to the second phase terminal. ### Claim 11 (depends on 9) The household appliance apparatus of claim 9, further comprising a control unit configured to assign in the switched-off operating state all of the first and second inverters to the second phase terminal via the switching arrangement and to open the isolating switching element. ### Claim 12 (depends on 1) The household appliance apparatus of claim 1, wherein the switching arrangement includes exactly one isolating switching element configured to isolate in at least one switched-off operating state all connections between the first and second phase terminals and the first and second inverters. ### Claim 13 (depends on 1) The household appliance apparatus of claim 1, further comprising a plurality of heating units, wherein the configuration switching unit is configured to connect, in a first operating state, a first heating unit of the plurality of heating units to the first inverter and assign a second heating unit of the plurality of heating units to the second inverter, and the configuration switching unit is configured to connect, in a second operating state, the first heating unit of the plurality of heating units to the first inverter and the second inverter. ### Claim 14 A household appliance, comprising a household appliance apparatus, said household appliance apparatus comprising a first inverter, a second inverter, a first phase terminal designed for electrical connection to a first phase of a power supply network, a second phase terminal designed for electrical connection to a second phase of the power supply network, and a switching arrangement configured to assign each of the first and second inverters to each of the first and second phase terminals, wherein the switching arrangement includes a configuration switching unit configured to connect the first inverter and the second inverter in parallel for a common supply of one of a plurality of heating units. ### Claim 15 (depends on 14) The household appliance of claim 14, constructed in a form of a cooktop. ### Claim 16 (depends on 14) The household appliance of claim 14, further comprising a plurality of heating units, wherein the configuration switching unit is configured to connect, in a first operating state, a first heating unit of the plurality of heating units to the first inverter and assign a second heating unit of the plurality of heating units to the second inverter, and the configuration switching unit is configured to connect, in a second operating state, the first heating unit of the plurality of heating units to the first inverter and the second inverter. ### Claim 17 A method for operating a household appliance apparatus which comprises a first inverter, a second inverter; a first phase terminal designed for electrical connection to a first phase of a power supply network, and a second phase terminal designed for electrical connection to a second phase of the power supply network, the method comprising deciding as a function of an operating state as to which of the first and second inverters is assigned to which of the first and second phase terminals, and switching a configuration switching unit of the switching arrangement to connect the first inverter and the second inverter in parallel for a common supply of one of a plurality of heating units. ### Claim 18 (depends on 17) The method of claim 17 for operating a cooktop apparatus. ### Claim 19 (depends on 17) The method of claim 17, wherein the configuration switching unit is configured to connect, in a first operating state, a first heating unit of the plurality of heating units to the first inverter and assign a second heating unit of the plurality of heating units to the second inverter, and the configuration switching unit is configured to connect, in a second operating state, the first heating unit of the plurality of heating units to the first inverter and the second inverter.