(19)

(11)

EP 4 026 411 A1

(12)

(43) Date of publication: 13.07.2022 Bulletin 2022/28 (21) Application number: 20824092.9 (22) Date of filing: 24.11.2020

(51) International Patent Classification (IPC):  H05K 7/20(2006.01) (52) Cooperative Patent Classification (CPC): H05K 7/20909 (86) International application number: PCT/EP2020/083137 (87) International publication number: WO 2021/105087 (03.06.2021 Gazette 2021/22)

(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: 28.11.2019 EP 19212304 (71) Applicant: Siemens Gamesa Renewable Energy A/S 7330 Brande (DK)	(72) Inventor: GROENHEDEN, Ebbe 8700 Horsens (DK) (74) Representative: Aspacher, Karl-Georg  Siemens Aktiengesellschaft Postfach 22 16 34 80506 München 80506 München (DE)