Movable heating system having fixed heating source for brazing stator bars

Abstract

A heating system for brazing a stator bar to a clip including: a heating coil having a seat to receive the stator bar and clip; a heating mass adapted to fit into the seat of the coil, and an extendible press applying the mass to the stator bar or clip.

1 . A heating system for brazing a stator bar to a clip comprising:
 a heating coil having a seat to receive the stator bar and clip;   a heating mass adapted to fit into the seat of the coil, and   an extendible press applying the mass to the stator bar or clip.   
   
   
       2 . The heating system in  claim 1  wherein the heating coil includes a U-shaped section and the stator bar seats in the U-shaped section. 
   
   
       3 . The heating system in  claim 2  wherein the heating mass seats in the U-shaped section. 
   
   
       4 . The heating system in  claim 1  wherein the heating mass is conductive. 
   
   
       5 . The heating system in  claim 1  wherein the heating coil is at least one of a resistive coil and an inductive coil. 
   
   
       6 . The heating system in  claim 1  wherein the heating mass substantially fills an area defined by an entrance to the heating coil. 
   
   
       7 . The heating system in  claim 1  wherein the heating mass substantially fills an area defined by an entrance to the U-shaped section. 
   
   
       8 . The heating system in  claim 1  wherein the stator bar includes a stator bar end and a clip, and the clip further includes a cover fitting into a slot in the clip, and the method further comprises abutting the conductive mass against the cover and conducting heat from the mass to the cover. 
   
   
       9 . The heating system in  claim 1  wherein the heating coil is an induction or resistive heating coil. 
   
   
       10 . The heating system in  claim 1  wherein the extendible press is a ram and the ram abuts against the heating mass. 
   
   
       11 . The heating system in  claim 10  wherein the heating mass is attached to an extendible ram of the press and the mass is applied to the assembly. 
   
   
       12 . The heating system in  claim 1  wherein the heating coil is stationary and the stator bar is moved into the seated position.