(19)
(11) EP 4 293 282 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.02.2024 Bulletin 2024/08

(43) Date of publication A2:
20.12.2023 Bulletin 2023/51

(21) Application number: 23165324.7

(22) Date of filing: 30.03.2023
(51) International Patent Classification (IPC): 
F23D 11/00(2006.01)
F23D 14/02(2006.01)
 F23D 11/40(2006.01)
F23N 5/08(2006.01)
(52) Cooperative Patent Classification (CPC):
F23D 14/02; F23D 2208/10; F23N 5/082; F23N 2229/00; F23N 2900/05005; F23D 11/001; F23D 2900/11403; F23D 11/404; F23N 2239/04; F23N 2239/06; F23N 2241/04
(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: 13.06.2022 KR 20220071768

(71) Applicant: Kyungdong Navien Co., Ltd.
Pyeongtaek-si, Gyeonggi-do 17704 (KR)

(72) Inventor:
  • KIM, Jeong Woo
    08217 Seoul (KR)

(74) Representative: Meissner Bolte Partnerschaft mbB 
Patentanwälte Rechtsanwälte Postfach 86 06 24
81633 München
81633 München (DE)

   


(54) WATER HEATING DEVICE WITH FLAME SENSOR


(57) Disclosed is a water heating device including a combustion chamber provided with an interior space, in which a combustion reaction occurs, a burner that causes the combustion reaction in the interior space, a heat exchanger including a heat exchange pipeline, in which water flows along an interior thereof, and that heats the water by using heat generated by the combustion reaction, a flame detecting sensor that senses flames generated in the interior space, an upper housing covering an upper side of the interior space, and having a mounting hole such that the flame detecting sensor is mounted therein, a flame tube including a tube part that surrounds at least some of the flames on a lower side of the upper housing, and an extending part surrounding a sensing hole formed at a location corresponding to the mounting hole such that the flames are sensed by the flame detecting sensor, and extending from the tube part toward the mounting hole, and a tube packing disposed between an inner surface of the upper housing, which defines the mounting hole and the extending part.







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