| 摘要 |
The invention provides an improved stator (28) for rotating electrical ma chines with single-layer stator windings consisting of a plurality of pre-fo rmed coils (22) of equal angular pitch. The stator (28) has a first cylindri cal surface in which a plurality of circumferentially spaced winding slots ( 30) are formed and in which the axially- extending winding runs (24) of the pre-formed coils (22) are positioned. The two winding runs (24) of each coil (22) will each be positioned in a winding slot (30) and the two winding slo ts (30) that receive the coil (22) define a winding slot pair. The improveme nt arises from the fact that the winding slots (30) of each winding slot pai r extend into the stator (28) in substantially parallel directions. This mea ns that the axially-extending winding runs (24) of each pre-formed coil (22) may also be substantially parallel and need not be angled towards each othe r. This enables the stator (28) to be easily wound as each pre-formed coil ( 22) may be simply and easily slotted into a parallel winding slot pair.</SDO AB>
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