| 摘要 |
1,174,784. Inductor alternators. EUROPE AIR SERVICE. 16 Dec., 1966 [22 Dec., 1965], No. 56464/66. Heading H2A. A rectified current homopolar inductor alternator, for land, sea and air vehicles, comprises a monolithic rotor 12 of less overall axial length than maximum diameter and whose respective ends are cylindrical and comprise a plurality of polepieces and are both frustoconically axially recessed, the rotor polepieces being encircled by a wound stator 14 carried by a cup-shaped yoke 15 forming part of the alternator casing, the magnetic circuit being completed between the stator and the rotor polepieces on the one hand and between the yoke and the rotor cylindrical end on the other hand at axially spaced rotor regions by magnetic flux lines substantially perpendicular to the rotor axis, and means being provided for rectifying the stator output current. As shown, the stator core comprises an assembly of teeth each tooth consisting of two stacks of oriented iron-cobalt laminations having asymmetric salient portions (27, 28), Fig. 2. The rectifying means comprises a 3 Ph. bridge of three diodes 41 mounted directly in an end shield 19 and three diodes 40 mounted in a starshaped Al-base 35 fitted in a complementary recess 36 and secured to the end shield by an insulated bolt 42 which also forms the output terminal. Insulating plates 48 in windows 47 receive the diode inter-connections (46) and the phase leads (50), Fig. 7. Fixed to a drive pulley 21 keyed to the rotor shaft 16 is a fan 22 which ventilates the alternator through openings 23, 45. A field coil 25 is secured to the yoke by a support 24. |
