Apparatus and method for preassembly of winding set of winding bar for electric machine stator or rotor for rotor

摘要

The present invention relates to an apparatus (200) for preassembling a winding for a stator or rotor for an electric machine.The apparatus includes a plurality of hairpins (255) having two legs (255a, 255b) having non circular cross-sections.The apparatus comprises rings (220, 230) including a plurality of slots (222, 232) and an outer storage ring (210) for storing along the circumference of rings (220, 230).Further, the inner cam block 270 and the outer cam block 280 surround the inner cam block 270 and are opposed to each other in the radial direction and are opposed to the exit surfaces of the rings 220, 230.The cam is arranged to intersect the two legs (255a, 255b) simultaneously with the ring (220, 230) during use.This cam opens toward a free circular space (295) between the two cam blocks.The present invention also relates to a method of preassembling a winding set (290) for an electric machine stator or rotor.In this method, the hairpin is sequentially inserted into the slot of the device (200).The continuous rotation of the ring (220, 230) is performed to obtain a completed winding set (290) disposed in the free circular space.Diagram