Apparatus for inserting an undulated coil assembly in slots of a core of a stator of a dynamoelectric machine

An apparatus for inserting an undulated coil assembly in a plurality of slots of a hollow core of a stator of a dynamoelectric machine, wherein:

• the hollow core includes a hollow core central rotation axis,
• the undulated coil assembly is formed by a plurality of undulated coils,
• each of the plurality of undulated coils includes adjacent superimposed linear portions,
• at least three of the plurality of undulated coils extend parallel to each other and a plurality of turn portions connect the adjacent superimposed linear portions thereof, and
• the turn portions are arranged alternately at one end side and at another end side of the adjacent superimposed linear portions,
• the apparatus comprising:
• a support member including a support member central rotation axis, wherein at least a first coil portion of the undulated coil assembly is positioned around an external surface of the support member and respective linear portions of each of the undulated coils of the undulated coil assembly are arranged parallel to the hollow core central rotation axis;
• a first guide device aligned with respect to end faces of the hollow core and the plurality of slots of the hollow core;
• a passage of the first guide device comprising at least one guide surface where the adjacent superimposed linear portions are engaged to change an angular orientation of the adjacent superimposed linear portions with respect to radiuses of the plurality of slots of the hollow core during the insertion therein;
• a feeder that feeds the first coil portion from the support member along the passage of the first guide device to insert the adjacent superimposed linear portions in the plurality of slots of the hollow core;
• and
• wherein the hollow core is configured to move with respect to the first guide device to position the plurality of slots of the hollow core for receiving the adjacent superimposed linear portions.