Patent
Tandem field alternator having an improved coil and slip ring connection and method of making the same
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TLDR
A tandem coil armature in which a pair of spaced-apart field coils are wound on bobbins mounted within a set of magnetic core pieces is described in this paper.Abstract:
A tandem Coil armature in which a pair of spaced-apart field coils [91,92] are wound on bobbins [12,14] mounted within a set of magnetic core pieces [16,18,20,22]. Two L-shaped conductors [27,28] pass through passageways through the core pieces and connect the windings to slip-rings [72,74]. Insulated conductor carriers [31,32,37,38] sized to mate with passageways and recesses in the core pieces support the L-shaped conductors and electrically insulate them from the magnetic core piece material. The core pieces are mounted for rotation with the rotor shaft [10] and include interleaved claws at their periphery which form the rotors magnetic poles.read more
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References
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Multiple magnetic paths machine
TL;DR: In this article, a single rotor machine is axially mounted with a plurality of pole pieces on the rotor shaft, each pole piece includes a central disc portion having a radial pole-forming projections, with the projections of adjacent pole pieces rotated 180 electrical degrees, such that the poleforming projections of every other pole piece have the same magnetic polarity.
Patent
Rotor for alternators with molded slipring assembly
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TL;DR: In this article, an alternator rotor has a rotor shaft formed integrally on the center of a rotary magnetic pole assembly having a field coil wound thereon, and the rotor shaft has an axial hole formed in one end surface thereof such as to extend axially inwardly and to receive a slip ring supporting shaft.
Patent
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Patent
Slip ring structure for dynamo electric machines, particularly automotive-type alternators
TL;DR: In this paper, a support carrier of electrically conductive material is secured to the shaft of a machine by a plurality of slip rings, one of the slip rings being fixed directly so that the support carrier will form one terminal of the electrical connection for the slip ring, and an insulating layer is placed over the support carriers over which the other slip ring is located.