US 2024/0296994 A1Published application

Method for manufacturing an element having magnetic poles

AssigneesRENAULT s.a.s., Whylot SAS

InventorsJere KOLEHMAINEN, Thierry LAURENT, Florian LOUBEAU

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Abstract

A method for manufacturing an element having magnetic poles, includes:—supplying a magnetization block including a first main face and a second main face between them delimiting a magnetization-block thickness;—machining, over just part of the thickness of the magnetization block, a first set of initial slots, starting from the first main face, so that the magnetization block remains in one piece;—pouring a first connecting material into the initial slots;—machining a set of complementary slots, forming continuations of the initial slots of the first set over the entire thickness of the magnetization block, so as to form a plurality of individual magnets separate from one another, the individual magnets being held together by the first connecting material.

Claims12

Dependent claims

A method for manufacturing an element having magnetic poles for a rotor for an electric machine, said element having magnetic poles comprising a plurality of unit magnets, said method comprising the steps of:

providing a magnetisation block comprising a first main face and a second main face opposite to the first main face, the first main face and the second main face delimiting a thickness of the magnetisation block therebetween;
machining, over only part of the thickness of the magnetisation block, a first set of initial slots starting from the first main face, such that the magnetisation block remains integral;
pouring a first connecting material into the initial slots;
machining a set of complementary slots forming extensions of the initial slots of the first set across the entire thickness of the magnetisation block, so as to form the plurality of unit magnets separated from each other, the unit magnets being held secured together by the first connecting material.

1 more element

Dependencies are inferred from the claim text.