EP 3304570 A1 20180411 - LOW NOISE SPECIAL TRANSFORMER
Title (en)
LOW NOISE SPECIAL TRANSFORMER
Title (de)
GERÄUSCHARMER SPEZIALTRANSFORMATOR
Title (fr)
TRANSFORMATEUR SPECIAL MOINS BRUYANT
Publication
Application
Priority
- DE 102015108885 A 20150604
- IB 2016053308 W 20160606
Abstract (en)
[origin: WO2016193958A1] The invention relates to a temperature resistant special transformer having excellent structure borne sound and/or airborne sound behaviour at the same time as a small, extremely flat construction and excellent overall efficiency. According to the invention, the transformer windings are distributed over three chambers as linearly consecutive, aligned coils having a single centrosymmetric primary coil (20) and two further coils (10, 30), electrically interconnected as a secondary winding, the coils being mechanically linked to one another in a chain. Such a transformer has a significantly lower input current in idle than in the lowest intended capacitive loading condition. In addition, the aforementioned advantageous acoustic characteristics are further improved by means of a special encapsulation of the transformer in an associated housing. The invention also relates to a method for producing the transformer at optimal cost and to the use of such a transformer in the automotive sector.
IPC 8 full level
H01F 27/32 (2006.01); B60J 7/00 (2006.01); H01F 27/02 (2006.01); H01F 27/30 (2006.01); H01F 27/33 (2006.01)
CPC (source: EP)
H01F 27/022 (2013.01); H01F 27/303 (2013.01); H01F 27/325 (2013.01); H01F 27/33 (2013.01); H01F 27/245 (2013.01)
Citation (search report)
See references of WO 2016193958A1
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)
WO 2016193958 A1 20161208; EP 3304570 A1 20180411; EP 3304570 B1 20200902
DOCDB simple family (application)
IB 2016053308 W 20160606; EP 16734034 A 20160606