Front and rear coil structure of claw-pole stepping motor

The utility model relates to the technical field of stepping motors, in particular to a front and rear coil structure of a claw-pole stepping motor, which comprises a shell assembly, the shell assembly is composed of a shell, a fixing piece, a PCB (printed circuit board) and long pin PIN needles, and the fixing piece is welded on the surface of the shell; a rotor set is arranged on the inner side of the shell assembly, rotor shafts are arranged on the surface of the rotor set in a circumferential mode, an upper coil half assembly and a lower coil half assembly are arranged on the outer sides of the rotor shafts, and the upper coil half assembly and the lower coil half assembly are sequentially arranged from top to bottom. The outer side of the upper coil half assembly and the outer side of the lower coil half assembly are tightly attached to the inner wall of the machine shell. According to the utility model, the uneven distribution of the claw poles caused by wrong assembly can be reduced, so that the vibrat