Bobbin for an encapsulated coil of a solenoid assembly

A bobbin for an encapsulated coil is provided for use in a coil assembly in which flange portions are provided on each end to ensure that during the process of encapsulating the coil with an over-molded material a positive seal is established between the bobbin and the over-molded material. Each of...

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Bibliographic Details
Main Authors DUST; MAURICE J, HOFFMAN, II; JOHN A
Format Patent
LanguageEnglish
Published 03.10.2000
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Summary:A bobbin for an encapsulated coil is provided for use in a coil assembly in which flange portions are provided on each end to ensure that during the process of encapsulating the coil with an over-molded material a positive seal is established between the bobbin and the over-molded material. Each of the flange portions have first, second, and third flange sections and each of the flange sections have predetermined diameters and peripheral surfaces that are angled with respect to a reference axis of a hole defined in the bobbin. The thin sharp edges formed by the peripheral surfaces of the respective flange sections melt back during the over-molding process. This melt back creates an intricate blend between the over-molded material and the bobbin thus producing a positive seal therebetween.
Bibliography:Application Number: US19980127838