Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1992-12-30
1994-07-19
Stephan, Steven L.
Electrical generator or motor structure
Dynamoelectric
Rotary
310179, H02K 100
Patent
active
053312465
ABSTRACT:
A structure for retaining bobbin wound electromagnetic coil assemblies on the poles of an electric motor is disclosed. Each coil assembly includes a bobbin having an opening formed therein which defines an interior space within which the motor poles are received. The ends of the bobbin are formed having pairs of opposed flange portions, each of which is generally flat and rectangular in shape. The flange portions extend from the upper and lower sides of each end of the bobbin, defining generally U-shaped end portions. The inwardly facing surfaces of the flange portions are each formed having an outer tapered surface and an inner groove extending thereacross. Wire is wound about the exterior surface of the bobbin, extending between the opposed flange portions at the ends of the bobbin. A pair of coil retainers are provided for retaining the coil assemblies on their respective stator poles during use. The coil retainers are each formed from a flat sheet of rigid material. When installed, the coil retainers engage the grooves formed on the flange portions of the bobbins to support the coil assemblies on the poles of the motor. A cylindrical rotor assembly is supported concentrically within the stator for rotation relative thereto.
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Dana Corporation
Nguyen Matthew
Stephan Steven L.
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