| 摘要 |
<p>A stator core for an alternator comprises a stack of laminations 4 held within an outer tubular frame 1. Each lamination has an internal circular opening 5 formed with slots and teeth 6 and is basically square in shape with its corners rounded on a radius 8 to match the internal surface of the frame 1. Each lamination is angularly displaced in relation to the next adjacent lamination by 120 degrees so that the complete stack forms a substantially cylindrical body which may further be skewed. Each of the four corners of each lamination is formed to define a connecting notch 10, 10, 10 and 13, the notch 13 differing from the notches 10 in that it has a stepped recessed construction including steps 29 and 30. The aligned inner recesses of successive laminations are closed by a connecting bar 31 to which is welded a bar 33, in turn welded to the frame 1. Each corner also includes triangular openings 11, 14 which define axially extending air passages. <IMAGE></p> |
