Induction cooker

Patent metadata

Field	Value
Publication number	US-12010781-B2
Application number	US-202016816999-A
Country	US
Kind code	B2
Filing date	Mar 12, 2020
Priority date	Mar 12, 2019
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

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.

First claim

What is claimed is:

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.

2. 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.

3. 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.

4. 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.

5. 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.

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

7. 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.

8. 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.

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

10. 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.

11. 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.

12. 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.

Assignees

• Tyco Electronics Shanghai Co Ltd
• MEAS France

Inventors

• Gallorini Romuald
• Fan Mingjie
• Wang Shaoyong

Classifications

• H05B6/1272

  with more than one coil or coil segment per heating zone · CPC title

• H05B1/0266

  Cooktops · CPC title

• H05B2213/06

  Cook-top or cookware capable of communicating with each other · CPC title

• G08C17/02

  using a radio link · CPC title

• H05B6/1209

  induction cooking plates or the like and devices to be used in combination with them · CPC title