(19)
(11) EP 4 346 333 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.07.2024 Bulletin 2024/29

(43) Date of publication A2:
03.04.2024 Bulletin 2024/14

(21) Application number: 23199704.0

(22) Date of filing: 26.09.2023
(51) International Patent Classification (IPC): 
H05B 6/06(2006.01)
(52) Cooperative Patent Classification (CPC):
H05B 6/062
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 27.09.2022 CN 202211186510

(71) Applicant: Guangdong Arcair Appliance Co., Ltd.
Guangdong 528318 (CN)

(72) Inventors:
  • KANG, ZUOTIAN
    Foshan, Guangdong 528318 (CN)
  • CHEN, JINHUA
    Foshan, Guangdong 528318 (CN)

(74) Representative: Ipey 
Apex House Thomas Street Trethomas
Caerphilly CF83 8DP
Caerphilly CF83 8DP (GB)

   


(54) POWER CONTROL METHOD AND INDUCTION COOKER


(57) The embodiments of the present disclosure provide a power control method and an induction cooker. The power control method include : obtaining a working mode of an induction cooker; when the induction cooker is in a working mode with a single heating zone working, obtaining a first Insulated Gate Bipolar Transistor (IGBT) temperature of the working heating zone, and based on the first IGBT temperature, obtaining a first maximum power value of the working heating zone; when the induction cooker is in a working mode with multiple heating zones working, obtaining a second IGBT temperature and a working time of the working heating zones, and based on the second IGBT temperature and the working time, obtaining a second maximum power value of the working heating zones. According to different working modes, different power control solutions can be prepared and by a proper temperature hysteresis error, an excessively high IGBT temperature can be avoided and thus the induction cooker is prevented from entering a high-temperature protection mode mistakenly.







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