Protection of permanent magnets in a DC-inductor

Details Protection of permanent magnets in a DC-inductor Protection of permanent magnets in a DC-inductor

2008-05-19

2011-10-11

Enad, Elvin G (Department: 2832)

Inductor devices

With permanent magnet

C336S175000, C336S212000, C336S214000

Reexamination Certificate

active

08035470

ABSTRACT:
A DC inductor comprising a core structure (11) comprising one or more magnetic gaps (12), a coil (14) inserted on the core structure (11), at least one permanent magnet (15) positioned in the core structure, the magnetization of the permanent magnet (15) opposing the magnetization producible by the coil (14). The core structure is adapted to form a main flux path and an auxiliary flux path, where the main flux path is adapted to carry the main magnetic flux producible by the coil, wherein the auxiliary flux path comprises a magnetic gap and is adapted to lead magnetic flux past the at least one permanent magnet (15).

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English translation of JP2003-318046.
EPO Search Report and Extended Search Report.

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