Filterdrossel, deren Herstellungsverfahren und Elektrische Vorrichtung

Details

Veröffentlichungs-Nr.

EP4184533

Aktenzeichen

EP21208886

Anmeldetag

17. November 2021

Veröffentlichung

2. Juli 2025

Erteilung

2. Juli 2025

Rechtsraum

EP

IPC

H01F5/04H01F27/32H01F3/12H01F37/00H01F5/02H01F27/30// H01F3/10H01F27/26

Abstract

The application discloses a filter-choke (10) to be used in an EMI filter comprising:- a closed magnetic core (20) having two core-legs (21, 22), wherein the magnetic core is configured to be assembled out of at least two core-segments (23),- at least two bobbins (30), each bobbin comprising a base flange (31) and a tubular section (32a, 32b) extending in perpendicular direction from the base flange (31), wherein the tubular section (32a, 32b) comprises an opening (33) for receiving one of the two core-legs (21, 22),- a coil (40) formed by an electric conductor (41) having multiple windings arranged around the tubular section (32a, 32b) of each bobbin (30),characterized, in thatin an assembled state of the filter-choke (10), the bobbins (30) are arranged in a stacked manner, such that their openings (33) are aligned coaxially to each other, one of the core legs (21, 22) extending through the openings (33), and in that each bobbin (30) comprise at least two first fitting elements (35) arranged on opposite edges (34) of its base flange (31), wherein the first fitting elements (35) of the first bobbin (30) are configured to engage with the first fitting elements (35) of the adjacent second bobbin (30) for releasably fixing the two bobbins (30) together.The application further discloses a method for producing said filter-choke (10) as well as an electrical device comprising said filter-choke (10).

Anmelder

Firma

SMA Solar Technology AG

Land

🇩🇪 Deutschland

Fachgebiete