Method for assembling a magnetic core for a transformer
AssigneeBorgWarner Ludwigsburg GmbH
InventorsSven Schumm, Manfred Adolf, Manuel Bauer, Alexander Stark, Timo Stifel, Dirk Wüstenhagen
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Abstract
A method is described for the assembly of a magnetic core for a transformer, with the following steps: Cutting sheet metal blanks from transformer sheet, stacking the sheet metal blanks to form magnetic core segments, placing a permanent magnet at one of the magnetic core segments so that the latter is magnetized by the permanent magnet, formation of the magnetic core by placing the remaining magnetic core segments against the permanent magnet, or against a magnetic core segment already magnetized by the permanent magnet. A magnetic core is also disclosed.
Claims11
A method of assembling a magnetic core for a transformer, comprising:
- cutting sheet metal blanks from a transformer sheet;
- stacking the sheet metal blanks to form a plurality of magnetic core segments, each of the plurality of magnetic core segments being formed by a separate sheet metal stack;
- placing a permanent magnet at one of the magnetic core segments to thereby magnetize the one of the plurality of magnetic core segments by the permanent magnet;
- and
- subsequent to the step of placing the permanent magnet, forming the magnetic core by placing remaining magnetic core segments at the permanent magnet or against another of the plurality of magnetic core segments which is already magnetized by the permanent magnet wherein the magnetic core includes a plurality of legs and each magnetic core segment forms no more than one leg of the magnetic core.
A method of assembling a magnetic core for a transformer, comprising:
- cutting sheet metal blanks from a transformer sheet;
- stacking the sheet metal blanks to form magnetic core segments;
- placing a permanent magnet at one of the magnetic core segments to thereby magnetize the one magnetic core segment by the permanent magnet;
- subsequent to the step of placing the permanent magnet, forming the magnetic core by placing remaining magnetic core segments at the permanent magnet or against another of the magnetic core segments which is already magnetized by the permanent magnet;
- and
- subjecting the transformer to a temperature which exceeds the Curie temperature of the permanent magnet.
Dependencies are inferred from the claim text.