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US 2004/0055148 A1Published application
Coil-winding machine stator installation jig and stator winding method
AssigneeMinebea Co., Ltd.
InventorsTaiichi Miya, Naohiko Aoyama
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AssigneeMinebea Co., Ltd.
InventorsTaiichi Miya, Naohiko Aoyama
Estimating the term…
A stator stack and stator jig assembly provide a consistent amount of slack in stator coil wires without increasing the complexity of coil-winding machines or adding production steps, and prevent crossing of the stator coil wires in the slack areas. A stator stack having magnetic pole teeth is mounted in a stator installation jig, and the ends of slack forming plates having grooves are made to project above the top surface of the stator stack to thrust stator coil wires upwardly. The coil-winding machine winds stator coil wires around the magnetic pole teeth, and after the stator coil wires are wound, the ends of the stator coil wires are passed through grooves in the ends of the plates to output pins. The coil-winding machine wraps the ends of the stator coil wires around the output pins. On removing the stator from the stator installation jig, the parts of the stator coil wires which where thrust upward become slack areas.
A stator installation jig for a coil-winding machine adapted to support a ring-shaped stator provided with a plurality of magnetic pole protuberances on an inner periphery of the stator and having a connector with a plurality of connector parts on an outer periphery wherein stator coil wires are wound onto the magnetic pole protuberances and the plurality of connector parts by means of the coil-winding machine, the stator installation jig, comprising at least one projecting member that penetrates through a gap that is formed between the connector and the outer periphery of the stator when the stator is supported by the stator installation jig, the at least one projecting member forming a plurality of grooves such that the stator coil wires which are strung between the connector parts and the plurality of magnetic pole protuberances are carried over the projecting member and between the plurality of grooves thereby imparting slack to the stator coil wires while preventing the stator coil wires from crossing.
A slack forming mechanism, comprising a stator attachment jig for receiving and coupling a stator to a coil winding machine, a slack forming member having a plurality of grooves, the slack forming member adapted to extend through an opening between a stator body and a coil wire connector, wherein the grooves extend from an end of the slack forming member toward the opening for imparting slack to and separating a plurality of coils extending between the stator and the coil wire connector.
In a stator installation jig for a coil winding machine, having a slack forming plate including a plurality of grooves, and adapted to support a stator provided with a plurality of magnetic pole teeth and having a connector with a plurality of connector parts on an outer periphery of the stator and a gap formed between the connector and stator, a method of winding coils between the stator and the connector comprising the steps of supporting the stator on the installation jig such that the slack forming plate extends through the gap in the stator, winding coils on the plurality of magnetic pole teeth, and connecting terminal end portions of the coils to the connector such that at least one coil extends over and within each of the plurality of cavities in the slack forming plate to separate and create slack in the coil wires.
Dependencies are inferred from the claim text.