Permanent magnet arrangement for use in rotor of e.g. electric machine in motor car, has clamping unit firmly arranged at permanent magnet and extending on long side of permanent magnet that is magnetized after clamping unit is attached

摘要

The arrangement (30) has a clamping unit (5) firmly arranged at a permanent magnet (3) that is magnetized after the clamping unit is attached. The clamping unit planarly extends on a long side (31) of the permanent magnet in an axial direction (21). The permanent magnet comprises opposite head sides, where the clamping unit is arranged on the head sides. The clamping unit is formed by overmolding or recasting the permanent magnet with an elastic or plastic material and made of thermosetting polymer, thermoplastic or rubber. Independent claims are also included for the following: (1) a rotor or stator for an electric machine (2) a method for manufacturing a rotor or a stator for an electric machine.