PHASE LEAD FOR CONNECTING STATOR COILS AND PARALLEL PHASE RINGS

摘要

47,927 PHASE LEAD FOR CONNECTING STATOR COILS AND PARALLES PHASE RINGS A dynamoelectric machine utilizing stiff, multiple component phase leads for connecting potentially misaligned stator coils and parallel phase rings. The phase leads, when attached to stator coil and phase ring coolant headers, provide electrical communication therebetween. The first component of each phase lead is joined to one coil header by fasteners which extend through a first series of aligned openings in the header and the first phase lead component. At least one of each pair of aligned openings constitutes a slot which is elongated in a first direction. A second phase lead component is similarly connected to a parallel phase lead ring by disposing fasteners through a second series of aligned openings in the second component and the phase ring header wherein at least one opening of each pair is a slot which is elongated in a second direction perpendicular to the first elongation direction. The first and second phase lead components have a hole and cylindrical portion respectively wherein the cylindrical portion is insertable in the hole. Such phase lead hole has a longitudinal axis perpendicular to both slot elongation directions. Intimate electrical contact between the phase lead components and their connected coolant headers is insured by disposing solder between their mateable, plane surfaces. Intimate electrical contact between the phase lead components is insured by brazing the components together at the interlace between the assembled cylindrical portion and hole. Translational misalignment between the connectable phase ring and 47,927 coil is accommodated in the three perpendicular directions by providing the slotted openings and permitting insertion of the cylindrical phase lead portion into the phase lead hole for selected distances. Such selective insertion is obtained by supplying extra stock to the cylindrical phase lead portion and trimming that portion to the appropriate length at assembly time.