Stellarator Coil Plates With Oriented Recesses for HTS Cable Alignment

The patent applies asymmetry by transitioning from circular (symmetric) recesses to non-circular recesses with varying orientations. The non-circular cross-sections (e.g., rectangular, triangular, or other polygonal shapes) provide unique geometric features that define specific alignment directions. This asymmetric geometry enables precise orientation of HTS cables along the winding path, as each recess shape naturally guides the cable into the correct position without requiring additional alignment mechanisms.

The patent implements local quality by allowing the recess cross-section and orientation to vary at different locations along the winding path. Instead of using a uniform recess design throughout, the recess geometry is locally adapted to match the specific alignment requirements at each position. This enables the plate to provide location-specific alignment constraints that match the optimal cable orientation needed at each point in the non-planar coil structure.

The patent applies preliminary action by pre-defining the cable alignment geometry directly in the plate recesses during plate manufacturing. The non-circular recesses are fabricated with precise orientations before cable installation, so that when the cable is placed into the recess, the alignment is automatically established. This preliminary preparation of the alignment structure eliminates the need for complex post-installation alignment procedures or specialized winding equipment, thereby reducing overall manufacturing complexity while achieving high precision.

The plate with non-circular recesses serves as an intermediary element that mediates between the cable and the final coil structure. The recess geometry acts as a mechanical interface that automatically translates the simple act of inserting the cable into the precise alignment position. This intermediary structure absorbs the complexity of alignment requirements, allowing the cable itself to remain relatively simple while achieving the desired precision through the mediating plate geometry.