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Browse Prior Art Database

Car Adapter Socket

IP.com Disclosure Number: IPCOM000115599D
Original Publication Date: 1995-May-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Nakanishi, H: AUTHOR

Abstract

In general, every automobile has a car adapter socket for lightening cigarettes. The car adapter socket is also useful for other purpose, because it can supply power for the inserted device. If you insert the power cord of a PC into the socket, a PC may be powered by it. In other words, an automobile can supply power to mobile personal computer via car adapter. This article describes the the contact point's structure of car adapter socket.

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

Car Adapter Socket

      In general, every automobile has a car adapter socket for
lightening cigarettes.  The car adapter socket is also useful for
other purpose, because it can supply power for the inserted device.
If you insert the power cord of a PC into the socket, a PC may be
powered by it.  In other words, an automobile can supply power to
mobile personal computer via car adapter.  This article describes the
the contact point's structure of car adapter socket.

      The contact point in an automobile's cigarette side isn't
standardized.  In other words, the shapes of the contacts point
differ within automobiles (Fig. 1).  In some cases, the mobile's
contact side may be sharp-pointed (B of Fig. 1).  These sharp-pointed
leads point contact with the car adapter socket's contact whose
figure
is flat and solid-conductive metal.  This point contact makes contact
resistance, and this ohmic resistance leads heat by electric current.

      To avoid resistance, (Fig. 2 shows the example structure) the
contact point's structure of car adapter socket has to be changed
from the solid metal to a conductive and flexible material such as
metal MESH.