| 摘要 |
<p>The motor (1) comprises a cylindrical rotor (2) rotatably disposed within a stator (3). The rotor comprises a rotor body (6) having a plurality of electrical grade steel laminations (6) press formed together and mounted on a shaft (7) with end plates (8) pressed against the end of the rotor body. The end plates each comprises a plurality of spaced apart upwardly directed straight teeth (9) at the outer circumference thereof. The rotor further comprises a plurality of longitudinal conductor slots (14) extending axially along the inner circumference of the rotor body in radially spaced apart relationship with one another and a plurality of rotor conductors (15) extending through the conductor slots in the rotor body and protruding out from the ends of the rotor. A pair of short circuiting rings (16), each ring is disposed at each end of the rotor body. Each ring has a plurality of slits (17) transversely extending through the circumference thereof matching with the protruding ends of the rotor conductors and each ring is engaged to the respective protruding ends of the rotor conductors through the slits and short circuited to the respective protruding ends of the rotor conductors. The rotor conductors and short circuiting rings are made of aluminium and the short circuiting rings are short circuited to the respective protruding ends of the rotor conductors by metal inert gas welding with aluminium as the weld material (Fig 2).</p> |
