Browse Prior Art Database

VIBRATOR MOTOR BRACKET USED MULTIFUNCTIONALLY AS NEGATIVE CELL FIXED CONTACT

IP.com Disclosure Number: IPCOM000005996D
Original Publication Date: 1990-Oct-01
Included in the Prior Art Database: 2001-Nov-23
Document File: 1 page(s) / 55K

Publishing Venue

Motorola

Related People

Jeff King: AUTHOR [+2]

Abstract

Communication devices, which incorporate interchangeable cells, must have a battery contact system to intercon- nect the negative and positive terminals. These contacts are usually single function in nature, used only to interconnect the primary or backup cells. In addition, many communication devices are now incorporating the use of a silent alert option, a vibrator reminder if you will. These small motors which spin off-centered wunter weights are mounted in various positions, but one similarity is that most incorporate the use of a stamped and formed metal bracket. This bracket is commonly located on the PCB and serves as an active ground. Quite commonly, the motor bracket is in very close proximity to the negative battery contact. This close proximity allows for an integration between the two components.

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MOTOROLA Technical Developments Volume 11 October 1990

VIBRATOR MOTOR BRACKET USED MULTIFUNCTIONALLY

AS NEGATIVE CELL FIXED CONTACT

by Jeff King and Mike Goldenberg

   Communication devices, which incorporate interchangeable cells, must have a battery contact system to intercon- nect the negative and positive terminals. These contacts are usually single function in nature, used only to interconnect the primary or backup cells. In addition, many communication devices are now incorporating the use of a silent alert option, a vibrator reminder if you will. These small motors which spin off-centered wunter weights are mounted in various positions, but one similarity is that most incorporate the use of a stamped and formed metal bracket. This bracket is commonly located on the PCB and serves as an active ground. Quite commonly, the motor bracket is in very close proximity to the negative battery contact. This close proximity allows for an integration between the two components.

   The integration of these two components allows for a very unique design which is not only extremely clean but is very reliable and has other advantages associated. Significant PCB space is saved and the stand alone support of the negative contact is drastically increased. The physical combination of these components is a direct piece part reduc- tion of one. This directly aids in the achievement of six-sigma goals. Furthermore, the cost savings associated with that of the single part when comp...