| 摘要 |
<p>The rotor 607 or the stator 601 may each include a first component 605/610 that has a common circumference with a corresponding second component 602/608. In order to connect the first and second components together the first component has one or more recesses or grooves 7 (47 Fig 4) distributed around the circumference and the corresponding second component has one or more resiliently deformable protrusions 8/606/611. The resiliently deformable protrusions are arranged to protrude into the one or more recesses so as to press against side walls of the recesses and resist relative rotation of the first and second components. The assembly of the components is made using a heat shrink process â see figs 5A,5B showing heat expanded and cooled state. The rotor may carry permanent magnets 609 and the stator windings 604</p> |
