Browse Prior Art Database

Zipper Zero Insertion Force Connector

IP.com Disclosure Number: IPCOM000111566D
Original Publication Date: 1994-Mar-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Gruber, H: AUTHOR [+4]

Abstract

This article describes a low-insertion-force interconnect especially for radio-frequency interference shieldings with a high density of contacts.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 96% of the total text.

Zipper Zero Insertion Force Connector

      This article describes a low-insertion-force interconnect
especially for radio-frequency interference shieldings with a high
density of contacts.

      The metal teeth of zippers are used as connectors to
interconnect signal lines, power lines or, in particular, to
interconnect Radio-Frequency Interference (RFI) shielding enclosures.
The teeth are crimped to the conductors like wires, flex circuits or
mesh wire fabric of RFI shielding enclosures.  The contact pressure
is provided by a silicon rubber string that has bumps in between each
second tooth.  These bumps press against the zipper tooth of the
other side, providing a force that wants to push the two zipper parts
apart.  Zero-Insertion-Force (ZIF) is accomplished, since one contact
pair is closed or opened at one time (Figure).

The proposal has the following advantages:

o   Very small connector compared to mated connectors with their
    housings.

o   Quietly connected and disconnected.

o   System frame can be covered by a mesh wire tent zipped together
    in minutes.

o   A whole box can be completely enclosed behind the covers just
    providing holes for hinges and external cable connections.

o   The mesh can be made so that the air flow is not restricted.

o   It would be possible to put layers of mesh wire at RFI critical
    sides.

o   The chain of uninterrupted zipper teeth provides a very tight
    shield, since a connection is...