1. Coil manufacturing technical requirements:
A. Winding wire diameter and number of turns should be accurate, each coil joint must not exceed one, each phase coil must not exceed two, and each coil must not exceed four. The joint must be at the end bevel, and the wrapping should comply with the regulations. b. The size is moderate and meets the requirements, guaranteed by the winding die.
C. The coils should be arranged neatly without crossing or damaging the insulation. The insulation between the turns of the multi-turn coil and the ground should be good and reliable.
2. Technical requirements for winding wire embedding, shaping and wiring:
A. The core should be checked and cleaned before wire embedding, and the protruding areas on the stator surface and in the groove must be filed and cleaned (not in the wire embedding area).
B. The winding pitch (slot pitch), the connection between the coils, and the relative position of the lead wires must be correct.
C. Winding slot insulation, layer insulation, and phase insulation should be good and reliable. The quality of the insulation material and the size of the structure should meet the requirements.
D. The surface of the slot wedge should be flat and smooth, and the winding insulation should not be damaged when inserted, and should have proper tightness. The end should not be cracked, and should not be higher than the inner circle of the core. The lengths of windings, insulation and slot wedges exposed at both ends of the stator core should be symmetrical.
E. The wires at the ends of the windings should be arranged neatly without serious crossovers. The end binding and insulation should meet the requirements.
F. Metal tools should not be used to directly contact the windings during wire embedding and shaping, and excessive force should not be used to avoid damage to the insulation.
G. Lead wire joints should be welded firmly to ensure good contact, sufficient mechanical strength, smooth surface, and no desoldering or virtual welding. Strictly prevent copper powder, welding slag and other spatters from damaging the winding insulation and being mixed into the winding.
H. The lead wires should be arranged neatly, with the same length and meet the requirements. Those that need to be marked with a line mark shall be marked in the same prescribed position.
I. The size of the end should conform to the drawing or tooling requirements.
J. The insulation at the bottom of the slot should not be broken, and the wire should not be damaged. If the slot is broken, it must be filled with the same material as the slot insulation, but the total number of cracks should not exceed 3, and it is not allowed to break to the core.
K. The stator core with windings is not allowed to roll on the ground, and the coil insulation must not be damaged during stacking and handling.