Method, system, and structure of stator with common insulating and varnishing resin

A system for varnishing a stator having a stator lamination core and a motor winding with welded tips, and insulating the welded tips, the system comprising:

• a trickling device to trickle a resin over the stator such that the resin coats the stator lamination core and the motor winding, including the welded tips, to form a first layer of the resin;
• a pool of a resin in which the welded tips are dipped to form a second layer of the resin, the second layer covering the first layer;
• and
• a first heating source to bake the stator to cure and dry the first layer and the second layer;
• wherein the resin serves both as a primary insulation for the welded tips and as a varnish for the stator.

A stator having a common varnish and weld insulation, the stator comprising:

• a stator lamination core;
• a motor winding wound around the stator lamination core, the motor winding including a plurality of magnet wires substantially parallel to each other, each magnet wire having two distal ends configured such that each of the distal ends is welded to one distal end of an adjacent magnet wire to form a plurality of welded tips;
• a first layer of a resin coating the stator, including the welded tips;
• and
• a second layer of the resin coating the welded tips, the second layer covering the first layer at the welded tips;
• wherein the resin serves both as a primary insulation for the welded tips and as a varnish for the bar-wound stator.