Insulated bobbin for stator
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorTetuya Sakamoto
Life of this patent
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Abstract
Disclosed is an insulated bobbin for stator which has good insertability of a stator iron core with no reduction of coil winding space. A first bobbin and a second bobbin each comprise a bobbin inner rim wall, provided along an outer rim face of an iron core main body, and a projections projecting from the bobbin inner rim wall in the diameter direction in correspondence with a plurality of projecting poles, each projection being U-shaped in cross-section with an opening on the division side, and a pair of side walls of the projections being of different height in the central axial direction so that a step is created by their edges.
Claims11
An insulated bobbin for stator, used in a stator of a multipolar magneto and provided between a stator iron core, comprising a substantially cylindrical iron core main body and a plurality of projecting poles which extend radially from the outer rim of said iron core main body, and generator coil wound around said projecting poles, for insulating said stator iron core and said generator coil, said insulated bobbin for stator comprising:
- a first bobbin and a second bobbin, divided in a central axial direction of said stator iron core;
- said first bobbin and said second bobbin each comprising a bobbin inner rim wall, provided along an outer rim face of said iron core main body, and a plurality of projections projecting from said bobbin inner rim wall in the diameter direction, having an U-shaped cross-section with an opening facing the axis of division between said bobbins and provided so as to cover each of said projecting poles, said bobbin inner rim wall and said projections being molded into a single body;
- a pair of side walls of said projection having different heights in said central axial direction, whereby edges of said pair of side walls form a step.
Dependencies are inferred from the claim text.