Global Patent Index - EP 3580770 B1

EP 3580770 B1 20230412 - AIR-COOLED DRY-TYPE TRANSFORMER

Title (en)

AIR-COOLED DRY-TYPE TRANSFORMER

Title (de)

TROCKENTRANSFORMATOR MIT LUFTKÜHLUNG

Title (fr)

TRANSFORMATEUR SEC À REFROIDISSEMENT PAR AIR

Publication

EP 3580770 B1 20230412 (DE)

Application

EP 18708595 A 20180208

Priority

  • DE 102017102436 A 20170208
  • EP 2018053180 W 20180208

Abstract (en)

[origin: WO2018146196A1] The invention relates to an air-cooled dry-type transformer (1) comprising a core (10) provided with a branch (11); a winding body (14) arranged about the branch (11); a cooling channel (25) extending in the direction of the longitudinal axis of the winding body (14), the cooling channel being arranged between an inner part (15) of the winding body (14) and an outer part (20) of the winding body (14), the cooling channel (25) having on both ends openings (40, 42) and an essentially annular shaped cross-section having a round, oval or polygonal basic shape; at least one ring ventilator (30, 30a, 30b, 30c) comprising a ring (32) and a blower (34), wherein the blower (34) is designed to suction air and to blow the air from the ring (32) along a longitudinal axis of the ring (32), wherein an air flow (31) is generated. The ring ventilator (30, 30a, 30b, 30c) is dimensioned and mounted such that the air flow (31) generates a cool air flow (35) in the cooling channel (25). The invention further relates to a power device with air cooling and a cooling method using a ring ventilator.

IPC 8 full level

H01F 27/08 (2006.01); H01F 27/28 (2006.01); H01F 27/32 (2006.01); H01F 30/10 (2006.01)

CPC (source: EP KR US)

H01F 27/085 (2013.01 - EP KR US); H01F 27/2876 (2013.01 - EP KR US); H01F 27/327 (2013.01 - US); H01F 30/10 (2013.01 - EP KR); H01F 2027/328 (2013.01 - EP KR US)

Citation (examination)

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

DOCDB simple family (publication)

DE 102017102436 A1 20180809; CN 110249397 A 20190917; CN 117766264 A 20240326; DK 3580770 T3 20230724; EP 3580770 A1 20191218; EP 3580770 B1 20230412; ES 2946190 T3 20230713; KR 102518571 B1 20230405; KR 20190112061 A 20191002; PL 3580770 T3 20230814; US 12014856 B2 20240618; US 2019362879 A1 20191128; WO 2018146196 A1 20180816

DOCDB simple family (application)

DE 102017102436 A 20170208; CN 201880010934 A 20180208; CN 202410174817 A 20180208; DK 18708595 T 20180208; EP 18708595 A 20180208; EP 2018053180 W 20180208; ES 18708595 T 20180208; KR 20197024999 A 20180208; PL 18708595 T 20180208; US 201916533807 A 20190807