Slack-forming mechanism for stator coil

Abstract

A slack-forming mechanism for stator coils that is able to impart slack of appropriate size to the stator coil without imposing an excessively heavy burden on the coiling machine. The slack-forming mechanism includes a coiling machine attachment jig having a protruding member that passes through a clearance formed between a stator body and connector, and has a top edge positioned higher than a clearance pass-through part of a stator coil. As it is possible to form slack in the stator coil without changing the configuration of the coiling machine, deficiencies in prior art slack-forming mechanisms are overcome such as the difficulty of maintaining uniform slack amounts, and unreliability. Moreover, since design-related restrictions are few, an adequately large slack is imparted to the stator coil to adequately suppress breakage of the stator coil induced by temperature change.

1 . A stator device adapted for being mounted to a jig attachment for a coil winding device having a slack forming member, comprising a stator body including a plurality of magnetic teeth disposed along an inner periphery of the stator body, at least two substantially parallel projecting members extending from an outer periphery of the stator body, and a connector block disposed between the projecting members for receiving terminal ends of stator coils extending from the plurality of magnetic teeth, wherein an opening is formed between the connector block and the outer periphery of the stator body such that when the stator body is mounted to a jig attachment, the slack forming member extends through the opening and imparts slack to coil wires traversing the slack forming member and extending between the stator magnetic teeth and the connector block.  
   
   
       2 . The stator device of  claim 1  wherein the connector block includes at least two pins for receiving terminal ends of coil wires.  
   
   
       3 . The stator device of  claim 1  wherein the opening is substantially rectangular in shape.