Global Patent Index - EP 3612004 A4

EP 3612004 A4 20200415 - INDUCTION HEATING APPARATUS

Title (en)

INDUCTION HEATING APPARATUS

Title (de)

INDUKTIONSHEIZVORRICHTUNG

Title (fr)

APPAREIL DE CHAUFFAGE PAR INDUCTION

Publication

EP 3612004 A4 20200415 (EN)

Application

EP 17905519 A 20171026

Priority

  • JP 2017080235 A 20170414
  • JP 2017038646 W 20171026

Abstract (en)

[origin: EP3612004A1] An induction heating apparatus (100) according to the present invention includes a first heating coil (31) connected to a first arm circuit (21) and a common arm circuit (24), and a second heating coil (32) connected to a second arm circuit (27) and the common arm circuit (24). When supplying an AC current of a first frequency to the first heating coil (31), the common arm circuit (24) is switched at a predetermined frequency, and when supplying an AC current of a second frequency different from the first frequency to the second heating coil (32), the common arm circuit (24) is switched at the same frequency as the one used when supplying the AC current of the first frequency to the first heating coil (31). AC currents of different frequencies can be supplied to the first heating coil (31) and the second heating coil (32).

IPC 8 full level

H05B 6/12 (2006.01)

CPC (source: EP)

H05B 6/065 (2013.01); H05B 6/1272 (2013.01); H05B 2213/05 (2013.01)

Citation (search report)

Designated contracting state (EPC)

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 MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3612004 A1 20200219; EP 3612004 A4 20200415; EP 3612004 B1 20210915; CN 110476479 A 20191119; CN 110476479 B 20211109; ES 2893875 T3 20220210; JP 6775673 B2 20201028; JP WO2018189940 A1 20191121; WO 2018189940 A1 20181018

DOCDB simple family (application)

EP 17905519 A 20171026; CN 201780089198 A 20171026; ES 17905519 T 20171026; JP 2017038646 W 20171026; JP 2019512344 A 20171026