| 摘要 |
1,009,854. Alternators. GENERAL MOTORS CORPORATION. Dec. 24, 1963 [Jan. 7, 1963], No. 50873/63. Heading H2A. [Also in Division G3] An electric generator for motor vehicles comprises an alternator with a wound field member, the machine incorporating output rectifiers and a voltage regulator mounted in its end cover. The voltage regulator is combined with the brush-holder and mounted above the rotor shaft, while the rectifiers are separately mounted below it. Three silicon diode rectifiers 78 are press-fitted into end wall 26 of the machine end-cover, while the remaining three diodes 80 are pressed into an insulated metal heat sink 82 having output terminal 84 connected to the vehicle battery. The alternator windings are connected to terminals 98, 100, 102 which are also connected to rectifier pairs, and through diodes 116 to a common heat-sink 104 which also carries a further diode 270. The components of the regulator are mounted on a printed circuit board (130, Figs. 6 and 7, not shown) located, e.g. by compound or adhesive, in a metal trough 120 secured to the machine end-wall 24 and to a plastic brush holder 170 which passes through registering slots in the trough and circuit-board. The controlled rectifier 212 of the regulator is mounted in a hole 210 in a metal heat sink 182. The regulator.-As shown in Fig. 9, the field winding 64 is energized from the alternator output through rectifiers 78 and 116 under the control of controlled rectifiers 148 and 212, the latter preferably being of the type which can be switched off by a signal applied to its gate, although both may be transistors. A Zener diode 144 provides a reference voltage, a charging indicator light may be connected at 232a, and the circuit includes a thermistor 154. Specification 951,365 is referred to. Reference has been directed by the Comptroller to Specifccations 840,306 and 958,757. |
