| 摘要 |
<p>The rotor (1) has permanent magnets (3) arranged in recesses (4, 16) extending along an axis (X-X') of the rotor such that North poles (N) and South poles (S) are alternately formed. The permanent magnets are regularly distributed between a circumferential portion (5) and a central portion (6) of a magnetic body (2) of the rotor so as to define pole sections (7) in circumferential direction. Two sets of axial ribs (17, 18) form two partitions between the recesses, where the axial ribs are arranged adjacent to each other in a T or L shaped radial plane.</p> |
