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Alternator-rectifier unit with economical connections to wires embedded in a circuit board

  • US 4,540,907 A
  • Filed: 02/28/1983
  • Issued: 09/10/1985
  • Est. Priority Date: 03/12/1982
  • Status: Expired due to Term
First Claim
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1. An engine-driven alternator-rectifier unit, suitable for vehicular service, having a shaft-mounted rotor carrying an excitation winding, a stator equipped with windings for producing 3-phase a.c., a 3-phase full wave rectifier having at least three positive-pole diodes and three negative-pole diodes for rectifying said 3-phase a.c. and further comprising:

  • a flat circuit board of insulating material having parallel surface planes and oriented perpendicular to and extending at least partially around the axis of the shaft on which said rotor is mounted, andcircuit conductor wires embedded in said circuit board for contributing to the interconnection of said diodes and said windings,said circuit board having cut-out portions which are substantially vacant except for portions of said embedded wires extending out of said circuit board and passing through said cutout portions, and which cut-out portions are located at places selected for connecting external conductors, including lead wires of said windings, respectively, to said embedded wires,said portions of said embedded wires at said selected places passing through said cut-out portion of said circuit board, being substantially longer than required for crossing said cut-out portions, and each having an intermediate length of wire bent at both ends in first planes of bending which are substantially parallel or identical so as to bring a major part of said intermediate wire length outward beyond one of the surface planes of said circuit board and additionally bent in at least one direction perpendicular to said first planes of bending to provide a U-shaped configuration, protruding at least in part from a said cut-out portion of said circuit board, for grasping a portion of a wire lead external to and otherwise connected with said circuit board,three of said intermediate wire lengths of said embedded wires being pinched at said U-shaped configurations thereof so as to clamp respective lead wires of said windings in respect to the electrical connections between embedded wires and said lead wires of said windings.

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