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Browse Prior Art Database

Power Distribution Bus Board

IP.com Disclosure Number: IPCOM000111233D
Original Publication Date: 1994-Feb-01
Included in the Prior Art Database: 2005-Mar-26
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Baba, S: AUTHOR [+2]

Abstract

Described is a power distribution bus board which has a combined structure of a laminated bus bar and a printed wiring board. A laminated bus bar is useful for distributing large current power, and a printed wiring board is useful for simple wiring and connector mounting via through hole. A power distribution bus board has both merits of these elements.

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This is the abbreviated version, containing approximately 100% of the total text.

Power Distribution Bus Board

      Described is a power distribution bus board which has a
combined structure of a laminated bus bar and a printed wiring board.
A laminated bus bar is useful for distributing large current power,
and a printed wiring board is useful for simple wiring and connector
mounting via through hole.  A power distribution bus board has both
merits of these elements.

      The purpose of this invention is to provide a wiring system for
distributing multi DC power and signals to several loads in a limited
space.  The Figure shows the construction of the power distribution
board.  Main board has four layers.  L2 and L3 are 0.6 mm thickness
copper plates used as power and ground lines.  L1 and L4 are signal
lines.  Dielectric material between these layers is glass epoxy
(prepreg 0.1 mm X 3).  Process for manufacturing this configuration
is based on the Metal Core Material process.  A back board covers
bare portions of soldered connector-pins.  A glass-epoxy plate which
has some bores fitting to connector-pins are mounted.  This
configuration has some advantages concerning to its functions,
safety, and space saving.

      This invention can solve some problems regarding a power
distribution board, such as large current capacity, temperture raise,
voltage drop.  This invention's power distribution bus board can be
utilized as a power and/or drive circuit used for medical machine,
automobile and so on.