Verfahren zur Herstellung eines Motorkerns

Details

Veröffentlichungs-Nr.

EP3713046

Aktenzeichen

EP20162791

Anmeldetag

12. März 2020

Veröffentlichung

17. Mai 2023

Erteilung

17. Mai 2023

Rechtsraum

EP

IPC

H02K1/02H02K1/17H02K1/27H02K15/03H01F41/00H01F1/04

Abstract

A method of producing a motor core (30) includes preparing soft magnetic plates (11) containing a transition metal element, preparing a modifying member (21) containing an alloy having a melting point lower than a melting point of the soft magnetic plate (11), bringing the modifying member (21) into contact with part of a plate surface of the soft magnetic plate (11), causing the modifying member to diffuse and penetrate into the soft magnetic plate (11) from a contact surface between the soft magnetic plate (11) and the modifying member (21) and forming a hard magnetic phase-containing part (16) in part of the soft magnetic plate (11), and laminating a plurality of soft magnetic plates (11) on each other after the modifying member (21) is brought into contact with part of the plate surface of the soft magnetic plates (11).

Anmelder

Firma

TOYOTA JIDOSHA KABUSHIKI KAISHA

Land

🇯🇵 Japan

Fachgebiete