Permanently excited DC machine e.g. electric motor - has neighbouring poles of opposite polarity forming common magnet segment

摘要

The direct current machine includes at least four magnet poles, which have alternating polarity in the circumferential direction. The motor armature (14) is provided with n grooves. Two neighbouring poles (11a, 11b or 12a, 12b) of opposite polarity form a common magnet segment (11, 12). The magnet segments are arranged symmetrically with each other with equal distances between. Pref., the magnetic segments are formed integrally. ADVANTAGE - Considerably reduces sticking moment while achieving compact symmetrical arrangement and higher space factor.