Brushless claw-pole power generator with external retainer

The invention discloses a brushless claw-pole power generator with an external retainer. The brushless claw-pole power generator with the external retainer comprises a shell and an excitation iron core in the shell, an excitation winding is wound on the excitation iron core, a mandrel I and a mandrel II are arranged at the centers of left and right ends of the excitation iron core respectively, a stator winding is fixed onto the inner wall of the shell, the retainer is mounted on the right end face of the outer wall of the shell, the mandrel I is fixedly arranged at the left end of the inner wall of the shell, and the mandrel II penetrates the right end of the shell to be fixedly arranged on the retainer. A left claw pole and a right claw pole are rotatable and in opposite arrangement and externally sleeves the excitation iron core in the shell, cylindrical left and right transmission shafts are fixedly arranged at the centers of the outer end faces of the left and right claw poles respectively, and the right transmission shaft externally sleeves the mandrel II and penetrates out of the right end of the shell. Annular nonmagnetic rings are mounted at the outer edges of the outer end faces of the left claw pole and the right claw pole respectively. The brushless claw-pole power generator with the external retainer has the advantages that abrasion caused by an electric brush is avoided, service life of the power generator is prolonged, and the problems of short circuit, aging of parts, fire hazards and the like are prevented.