Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2005-09-20
2005-09-20
Lam, Thanh (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S235000
Reexamination Certificate
active
06946758
ABSTRACT:
Magnet wires wound in slots in a lamination stack of a dynamoelectric machine are encapsulated, in whole or in part, with thermally conductive plastic. Pre-formed features having a thermal conductivity higher than the thermally conductive plastic are insert molded when the plastic is molded. The pre-formed features may include a finned end cap and a fan. Alternatively, end domes of the plastic over end coils of the wound magnet wires have a metallic layer on them, such as by being metallized. The end domes can be formed with features which are also metallized. The thermally conductive plastic can have a phase change additive in it. The magnet wires can have a layer of heat activated adhesive that is activated when the plastic is molded. Slots in the lamination stack can include slot liners formed of thermally conductive plastic. A fan can be formed when the thermally conductive plastic is molded to encapsulate the magnet wires.
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Du Hung T.
Ortt Earl M.
Sell Michael R.
Stone John C.
Verbrugge Brandon L.
Black & Decker Inc.
Harness & Dickey & Pierce P.L.C.
Lam Thanh
LandOfFree
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