STRIP CORE Russian patent published in 2024 - IPC H01F27/245 H01F41/02 H01F3/04 

FIELD: electrical engineering.

SUBSTANCE: strip core comprises a multilayer body including a plurality of sheets of electrical steel laid in an annular form in a side view. Multilayer body includes a plurality of bent portions and a plurality of block-shaped portions at positions between adjacent bent portions. At least one part in the form of a block among a plurality of parts in the form of a block includes a heat transfer path limited by sheets of electrical steel at least in a part between the laid sheets of electrical steel. Heat transfer path is included only in at least one part in the form of a block. Spacer element is provided in at least one part between laid sheets of electrical steel in at least one part in the form of a block among multiple parts in the form of a block. Part of the gap formed between sheets of electrical steel by means of a spacer is a heat transfer path, and the spacer is made of nonmagnetic material.

EFFECT: reduced losses in the core.

15 cl, 5 dwg, 3 tbl