Stator assembly of a magnetic suspension bearing and manufacturing method

A magnetic suspension bearing comprising a stator assembly, wherein the stator assembly of the magnetic suspension bearing comprises:

• a stator core;
• a plurality of coils, each of the coils is wound correspondingly on each of a plurality of teeth of the stator core;
• two stator core frames, respectively engaged at both ends of the stator core along an axial direction thereof, wherein a concave portion is provided at an engaged end of one of the stator core frames, a convex portion is provided at an engaged end of the other of the stator core frames, the concave portion and the convex portion are engaged with each other, and a conductive sheet insertion hole is provided at one end of the stator core frame opposite to the engaged end;
• a circuit board, provided at an outer end of one of the stator core frames to connect an end of each of the plurality of coils and abutting against the stator core frame;
• and
• a conductive sheet, located in the conductive sheet insertion hole, and with one end connected to the end of the coil and the other end connected to the circuit board;
• wherein, a first mounting hole is provided at one end of the stator core frame opposite to the engaged end, and a second mounting hole is provided on the circuit board, for fixing the circuit board on the stator core frame by fasteners passing through the first mounting hole and the second mounting hole.