MOTOR ELETRICO,ESPECIALMENTE PARA DISPOSITIVOS DE PARTIDA DE MOTORES DE COMBUSTAO

PCT No. PCT/DE86/00386 Sec. 371 Date Jul. 1, 1987 Sec. 102(e) Date Jul. 1, 1987 PCT Filed Sep. 23, 1986 PCT Pub. No. WO87/03148 PCT Pub. Date May 21, 1987.An electric machine, particularly for starting devices, is suggested. Permanent magnets (4 to 9) with assigned flux conducting pieces (10 to 15) are arranged in the housing (1) of the electric machine. The permanent magnets (4 to 9), together with the flux conducting pieces (10 to 15), are preassembled in two rings (18, 19) as retaining parts to form a constructional unit. Each ring (18, 19) has a cylindrical portion (20; 30) which contacts the end portions of the inner side (21; 22) of the permanent magnets (4 to 9) or the flux conducting pieces (10 to 15). A flangelike edge (25; 33) of the rings (18; 19) contacts the front sides (23, 24; 31, 32) of the permanent magnets (4 to 9) and the flux conducting pieces (10 to 15). Tabs (26, 27; 34, 35), which contact the end portions of the free longitudinal sides (17; 28 ) of the permanent magnets (4 to 9) or the flux conducting pieces (10 to 15), are bent out from the edges 25 and 33. A ring (19) is provided with fastening means (36 to 41) for the detachable fastening of the magnet group (4 to 15, 18, 19) at projections (3) of the housing (1).