Patent ID: 8307536
Filing Date: 2012-11-13
Classification: H01F,Y10T

Abstract:
1. A method for manufacturing a coil capable of generating a magnetic field known as intense field when an electric current passes through said coil, comprising: forming turns by cutting a cylindrical tube along an overall helicoidal cutting line, wherein said cutting line is made to form at least one boss on at least one turn of said coil and at least one recess of corresponding form in an adjacent turn such that the boss extends perpendicularly to said recess, said boss and corresponding recess being formed for absorbing the mechanical stresses caused by the electromagnetic forces and the mechanical forces of thermal origin; wherein the method further comprises a prior optimization step of the boss or bosses and of the recess or recesses said optimization step comprising the following steps: determining a meshing of the turns and the boss or bosses and the corresponding recess or recesses, simulating at least one of a temperature rise and electromagnetic fields from the meshing, comparing at least one of the temperature rise and the electromagnetic fields with those of a reference meshing having no bosses, comparing the displacements under the electromagnetic and thermal loads of the turns with those of a reference model having no bosses.