Global Patent Index - EP 3435739 A4

EP 3435739 A4 20190327 - HIGH FREQUENCY HEATING DEVICE

Title (en)

HIGH FREQUENCY HEATING DEVICE

Title (de)

VORRICHTUNG ZUR HOCHFREQUENZERWÄRMUNG

Title (fr)

DISPOSITIF DE CHAUFFAGE HAUTE FRÉQUENCE

Publication

EP 3435739 A4 20190327 (EN)

Application

EP 17769844 A 20170302

Priority

  • JP 2016061028 A 20160325
  • JP 2017008212 W 20170302

Abstract (en)

[origin: EP3435739A1] A high frequency heating device according to the present disclosure includes: a heating chamber having an opening; an opening peripheral portion provided at a peripheral edge of the opening; a high frequency wave generation unit that supplies high frequency waves to the heating chamber; and a door that covers the opening in an openable manner and has a radio wave shielding portion at a position facing the opening peripheral portion. The radio wave shielding portion is provided with an open hole provided so as to face the opening peripheral portion, and a choke groove formed from a plurality of conductors. The choke groove has a first resonance space having a first resonance frequency, and a second resonance space having a second resonance frequency different from the first resonance frequency. Accordingly, radio wave shielding performance can be improved.

IPC 8 full level

H05B 6/76 (2006.01); F24C 7/02 (2006.01)

CPC (source: EP)

F24C 7/02 (2013.01); H05B 6/763 (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 3435739 A1 20190130; EP 3435739 A4 20190327; EP 3435739 B1 20210707; CN 108886845 A 20181123; CN 108886845 B 20220218; JP WO2017163799 A1 20190131; WO 2017163799 A1 20170928

DOCDB simple family (application)

EP 17769844 A 20170302; CN 201780018772 A 20170302; JP 2017008212 W 20170302; JP 2018507173 A 20170302