Browse Prior Art Database

Coil To Headbeam Attachment

IP.com Disclosure Number: IPCOM000123489D
Original Publication Date: 1998-Dec-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 1 page(s) / 35K

Publishing Venue

IBM

Related People

Hu, PY: AUTHOR

Abstract

An electrical coil wound from fine wires need reliable terminations so that it will withstand pressure and heat from overmolding operation of the coil into a given mechanical structure such as the headbeam shown.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Coil To Headbeam Attachment

   An electrical coil wound from fine wires need reliable
terminations so that it will withstand pressure and heat from
overmolding operation of the coil into a given mechanical structure
such as the headbeam shown.

   This invention illustrates that the terminus of the coil
are wire-wrapped around another heavier gage magnet wire, a
post-like rod, which has insulation and at the same time it is
conductive.  The wire-wrapped region is tinned and soldered, so that
the post-like magnet wire is electrically connected to the coil.  The
post-like magnet wires are tinned on the other end for further
connection to the power source.  The lower part of the post near the
coil is then covered by electrically insulative shrink tubing, which
serves to strain relief the wire-wrapped region between the coil and
the post, as well as completely insulating the entire coil assembly
with respect to the aluminum headbeam.  The post is then threaded
into holes in the headbeam, and the coil headbeam structure is now
ready for overmolding.  The coil to headbeam attachment method
prevents the fine wire from being severed during overmolding and at
the same time prevents the coil from shoring to the headbeam.