# US 12,010,781 B2 · Induction cooker

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- Number: US 12,010,781 B2
- Document ID: US12010781B2
- Status: Granted
- Kind: B2
- Application number: 16/816,999
- Filed: 2020-03-12
- Published: 2020-09-17
- Granted: 2024-06-11
- Earliest claimed: 2019-03-12
- Assignees: Tyco Electronics (Shanghai) Co., Ltd.; MEAS France
- Applicants: Tyco Electronics (Shanghai) Co. Ltd.; MEAS France
- Inventors: Romuald Gallorini; Mingjie Fan; Shaoyong Wang
- Web page: https://patentgrep.com/patent/US12010781B2

## CPC

- H05B 6/062: {for cooking plates or the like}
- H05B 6/065: {using coordinated control of multiple induction coils}
- G01K 1/024: for remote indication
- G01K 1/026: {arrangements for monitoring a plurality of temperatures, e.g. by multiplexing}
- H05B 1/0266: {Cooktops}
- H05B 6/1272: {with more than one coil or coil segment per heating zone}
- H05B 2213/06: Cook-top or cookware capable of communicating with each other
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00)

## Abstract

An induction cooker including a plurality of stoves each having a transmitting coil and a driver driving the transmitting coil, and a controller controlling the driver of each of the stoves to generate a drive signal. The drive signal of each of the stoves is a periodically cyclic modulation signal sequence. The stoves are identifiable and distinguishable from each other by the periodically cyclic modulation signal sequences that are different for each of the stoves.

## Claims

### Claim 1

An induction cooker, comprising:
a plurality of stoves each having a transmitting coil and a driver driving the transmitting coil;
a controller controlling the driver of each of the stoves to generate a drive signal, the drive signal of each of the stoves is a periodically cyclic modulation signal sequence, the stoves are identifiable and distinguishable from each other by the periodically cyclic modulation signal sequences that are different for each of the stoves; and
a plurality of pots each placed on one of the stoves, each of the pots has a receiving coil electromagnetically coupled with the transmitting coil of one of the stoves, the receiving coil receives the drive signal from the transmitting coil, one of the stoves corresponding to one of the pots is identified according to the periodically cyclic modulation signal sequence of the drive signal received at the receiving coil of the one of the pots.

### Claim 2 (depends on 1)

The induction cooker of claim 1, wherein at least one of an amplitude, a phase, and a frequency of each of the periodically cyclic modulation signal sequences is different for each of the stoves.

### Claim 3 (depends on 2)

The induction cooker of claim 2, wherein the amplitude of each of the periodically cyclic modulation signal sequences is different for each of the stoves, and the stoves are identifiable and distinguishable from each other by the amplitude.

### Claim 4 (depends on 2)

The induction cooker of claim 2, wherein the phase of each of the periodically cyclic modulation signal sequences is different for each of the stoves, and the stoves are identifiable and distinguishable from each other by the phase.

### Claim 5 (depends on 2)

The induction cooker of claim 2, wherein the frequency of each of the periodically cyclic modulation signal sequences is different for each of the stoves, and the stoves are identifiable and distinguishable from each other by the frequency.

### Claim 6 (depends on 1)

The induction cooker of claim 1, wherein the transmitting coils of the stoves heat the pots on stoves.

### Claim 7 (depends on 1)

The induction cooker of claim 1, wherein each of the pots has a signal process circuit processing the drive signal received by the receiving coil and converting the periodically cyclic modulation signal sequence in the drive signal into a digital identification signal sequence.

### Claim 8 (depends on 7)

The induction cooker of claim 7, wherein the one of the stoves corresponding to the one of the pots is identified by the digital identification signal sequence.

### Claim 9 (depends on 8)

The induction cooker of claim 8, wherein each of the pots has a temperature sensor detecting a temperature of the pot.

### Claim 10 (depends on 9)

The induction cooker of claim 9, wherein each of the pots has a wireless transmitting module transmitting the digital identification signal sequence and a temperature signal from the temperature sensor to a wireless mobile communication device and/or a wireless communication module.

### Claim 11 (depends on 10)

The induction cooker of claim 10, wherein the controller identifies one of the stoves corresponding to the temperature signal based on the digital identification signal sequence received by the wireless mobile communication device and/or the wireless communication module.

### Claim 12 (depends on 11)

The induction cooker of claim 11, wherein the controller controls the driver of the one of the stoves based on the temperature signal, so that a temperature of the one of the stoves reaches a predetermined temperature.