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US 9,287,030 B2Granted
Multi gap inductor core
OwnerFranc Zajcinventor
Life of this patent
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Abstract
A multi-gap inductor core includes magnetic lamination sheets made of magnetic core material arranged in a stack, and fixing layers made of a fixing material. Each fixing layer is arranged between a corresponding pair of adjacent magnetic lamination sheets. Each fixing layer also includes an embedded mechanical spacer that defines a gap having a predetermined thickness between a corresponding pair of adjacent magnetic lamination sheets.
Claims11
A manufacture of a multi-gap inductor comprising:
- a multi-gap inductor core, said multi-gap inductor core including:
- a plurality of magnetic lamination sheets made of magnetic core material arranged in a stack;
- and a plurality of fixing layers made of a fixing material;
- wherein each fixing layer is arranged between a corresponding pair of adjacent magnetic lamination sheets;
- and wherein each fixing layer includes an embedded mechanical spacer that defines a gap having a predetermined thickness between a corresponding pair of adjacent magnetic lamination sheets;
- wherein a length axis of the multi-gap inductor core is defined along a staggering direction of the magnetic lamination sheets;
- a winding formed of a flat band winding or a strand wire winding very closely wound around said multi-gap inductor core around said length axis of said multi-gap inductor core, whereby said flat band winding or strand wire and said multi-gap inductor core define a coil;
- wherein the gaps are arranged perpendicular to a magnetic flux direction of said coil;
- and
- wherein all of said gaps are surrounded by said winding;
- and
- a magnetic shielding surrounding said coil and closing the magnetic field of the coil whereby said coil and said magnetic shielding define said multi-gap inductor.
9 more elements
Dependencies are inferred from the claim text.