(19)

(11)

EP 3 894 762 A1

(12)

(43) Date of publication: 20.10.2021 Bulletin 2021/42 (21) Application number: 19896243.3 (22) Date of filing: 18.11.2019

(51) International Patent Classification (IPC):  F25C 1/25(2018.01) F25C 1/18(2006.01) (52) Cooperative Patent Classification (CPC): F25C 1/18; F25C 1/25 (86) International application number: PCT/KR2019/015744 (87) International publication number: WO 2020/122443 (18.06.2020 Gazette 2020/25)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 12.12.2018 KR 20180159935 (71) Applicant: LG Electronics Inc. Seoul 07336 (KR)	(72) Inventors: LEE, Donghoon Seoul 08592 (KR) SON, Sunggyun Seoul 08592 (KR) LEE, Wookyong Seoul 08592 (KR) (74) Representative: Vossius & Partner Patentanwälte Rechtsanwälte mbB  Siebertstraße 3 81675 München 81675 München (DE)