EP 1393330 A1 20040303 - INDUCTIVE COMPONENT AND METHOD FOR PRODUCING THE SAME
Title (en)
INDUCTIVE COMPONENT AND METHOD FOR PRODUCING THE SAME
Title (de)
INDUKTIVES BAUELEMENT UND VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
COMPOSANT INDUCTIF ET PROCEDE DE FABRICATION ASSOCIE
Publication
Application
Priority
- DE 10128004 A 20010608
- EP 0204644 W 20020426
Abstract (en)
[origin: DE10128004A1] The invention relates to an inductive component (10) whose soft-magnetic core (11) consists of a powder composite. Said powder composite is produced by mixing a ferromagnetic amorphous or nanocrystalline alloy powder with a ferromagnetic dielectric powder and a thermoplastic or duroplastic polymer. Unlike conventional injection-molded or cast soft-magnetic cores, cores from a composite comprising a dielectric ferromagnetic powder allow for packing densities of substantially more than 55 % by volume.
[origin: DE10128004A1] Inductive device with winding(s) has a soft magnetic core of a ferromagnetic powder composite consisting of a ferromagnetic alloy powder (I) of an amorphous or nanocrystalline alloy, a ferromagnetic dielectric powder (II) and a thermoplastic or thermosetting polymer (III). Independent claims are also included for the following: (1) production of the device by preparing a mold, (I), (II) and (III), and either: (i) Filling the mold with (I) and (II), adding (III) and curing (III); or (ii) Mixing (I), (II) and (III), filling the mold with the resultant powder and curing; and (2) the use of ferromagnetic carbonyl metal powders for the production of soft magnetic cores of inductive devices.
IPC 1-7
IPC 8 full level
G08B 13/24 (2006.01); H01F 1/33 (2006.01); H01F 27/255 (2006.01); H01F 41/02 (2006.01); H01F 41/04 (2006.01); H01F 17/04 (2006.01)
CPC (source: EP US)
G08B 13/2402 (2013.01 - EP US); H01F 1/33 (2013.01 - EP US); H01F 41/0246 (2013.01 - EP US); H01F 41/046 (2013.01 - EP US); H01F 17/04 (2013.01 - EP US)
Citation (search report)
See references of WO 02101763A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
DE 10128004 A1 20021219; EP 1393330 A1 20040303; JP 2004529508 A 20040924; US 2004183643 A1 20040923; US 7532099 B2 20090512; WO 02101763 A1 20021219
DOCDB simple family (application)
DE 10128004 A 20010608; EP 0204644 W 20020426; EP 02742919 A 20020426; JP 2003504422 A 20020426; US 47690104 A 20040506