Process for insulating the stator of an electronically switched D.C. motor
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United States of America Patent
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-
Oct 26, 1999
Grant Date -
N/A
app pub date -
Jun 24, 1998
filing date -
Oct 28, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention is directed to a method of insulating the stator of an electronically commutated direct current motor, in order to also fulfill high insulation and protection requirements. This method comprises the following steps: the stator (1) is introduced into a closable form with laterally retractable jaws (21); the form is closed, wherein it encloses the outer contours of the stator (1) including the printed circuit board (11), with a spacing, at least in regions; a thermoplastic hot-melt adhesive based on polyamide is injected under pressure into the form; the form is opened and the extrusion-coated stator (1) is removed.
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