D.C. power distribution and fuse panel unit
First Claim
1. A power distribution and fuse panel unit for installation in a vehicle to facilitate connection of various vehicle auxiliary electrical devices having different power disconnect requirements, comprising:
- a modular unit having a constant power input terminal adapted to be connected with a battery to provide a source of constant D.C. voltage, and an ignition controlled power input terminal adapted to be connected to an ignition system of the vehicle to provide a source of ignition controlled D.C. voltage upon the ignition system being turned on;
a plurality of constant power output terminals connected with said constant power input terminal for connecting auxiliary electrical devices to be supplied with constant power independently of the operation of the vehicle ignition system;
a plurality of delayed shut-off power output terminals connected with said constant power input terminal and with said ignition controlled power input terminal for connecting auxiliary electrical devices to be supplied with power for a predetermined time interval after the ignition system has been turned off;
fuse elements connected between said constant power input terminal and said plurality of constant power output terminals and between said constant power input terminal and said plurality of delayed shut-off power output terminals; and
timing means and relay means connected between said constant power input and ignition controlled power input terminals and said plurality of delayed shut-off power output terminals to provide voltage to said plurality of delayed shut-off power output terminals upon said ignition system being turned on, and after a predetermined time interval after the ignition system has been turned off, to disconnect voltage to said plurality of delayed shut-off power output terminals.
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Accused Products
Abstract
A D.C. power distribution and fuse panel unit facilitates installation and trouble shooting of vehicle auxiliary electrical equipment such as two-way radios, sirens, computer mobile data terminals, and mobile phones in police and other emergency vehicles. The unit is installed beneath the dash of a vehicle or other location inside the vehicle and is connected to the battery by a single wire which passes through the firewall, and is joined to the ignition circuit by a second wire connected to a suitable point such as the existing vehicle fuse block. The unit is supplied with a constant source of positive D.C. voltage, and also with ignition voltage when the vehicle ignition switch is turned on. The unit contains solid state circuitry including relay circuits, timer circuit, and has a plurality of fused power output terminals including constant power, ignition controlled power, and delayed power shut-off terminals for connecting various auxiliary electrical devices having different power disconnect requirements, and may also have a plurality of individual fused input/output circuits. The unit provides a common power distribution module for connecting and supplying power to various types of auxiliary electrical equipment according to their particular requirements. The unit may also have a test switch to speed up the delayed shut-off sequence and allow rapid testing and trouble shooting.
51 Citations
12 Claims
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1. A power distribution and fuse panel unit for installation in a vehicle to facilitate connection of various vehicle auxiliary electrical devices having different power disconnect requirements, comprising:
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a modular unit having a constant power input terminal adapted to be connected with a battery to provide a source of constant D.C. voltage, and an ignition controlled power input terminal adapted to be connected to an ignition system of the vehicle to provide a source of ignition controlled D.C. voltage upon the ignition system being turned on; a plurality of constant power output terminals connected with said constant power input terminal for connecting auxiliary electrical devices to be supplied with constant power independently of the operation of the vehicle ignition system; a plurality of delayed shut-off power output terminals connected with said constant power input terminal and with said ignition controlled power input terminal for connecting auxiliary electrical devices to be supplied with power for a predetermined time interval after the ignition system has been turned off; fuse elements connected between said constant power input terminal and said plurality of constant power output terminals and between said constant power input terminal and said plurality of delayed shut-off power output terminals; and timing means and relay means connected between said constant power input and ignition controlled power input terminals and said plurality of delayed shut-off power output terminals to provide voltage to said plurality of delayed shut-off power output terminals upon said ignition system being turned on, and after a predetermined time interval after the ignition system has been turned off, to disconnect voltage to said plurality of delayed shut-off power output terminals. - View Dependent Claims (2, 3, 4)
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5. A power distribution and fuse panel unit for installation in a vehicle to facilitate connection of various vehicle auxiliary electrical devices having different power disconnect requirements, comprising:
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a modular unit having a constant power input terminal adapted to be connected with a battery to provide a source of constant D.C. voltage, and an ignition controlled power input terminal adapted to be connected to an ignition system of the vehicle to provide a source of ignition controlled D.C. voltage upon the ignition system being turned on; a plurality of constant power output terminals connected with said constant power input terminal for connecting auxiliary electrical devices to be supplied with constant power independently of the operation of the vehicle ignition system; a plurality of ignition controlled power output terminals connected with said ignition controlled power input terminal for connecting auxiliary electrical devices to be supplied with ignition controlled power when the ignition system is turned on; a plurality of delayed shut-off power output terminals connected with said constant power input terminal and with said ignition controlled power input terminal for connecting auxiliary electrical devices to be supplied with power for a predetermined time interval after the ignition system has been turned off; fuse elements connected between said constant power input terminal and said plurality of constant power output terminals, between said constant power input terminal and said plurality of ignition controlled power output terminals, and between said constant power input terminal and said plurality of delayed shut-off power output terminals; and timing means and relay means connected between said constant power input and ignition controlled power input terminals and said plurality of ignition controlled power output and plurality of delayed shut-off power output terminals to provide ignition controlled voltage to said plurality of ignition controlled power output and said plurality of delayed shut-off power output terminals upon said ignition system being turned on, and to immediately disconnect voltage to said plurality of ignition controlled power output terminals upon the ignition system being turned off, and after a predetermined time interval after the ignition system has been turned off, to disconnect voltage to said plurality of delayed shut-off power output terminals. - View Dependent Claims (6, 7, 8, 9)
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10. A power distribution and fuse panel unit for installation in a vehicle to facilitate connection of various vehicle auxiliary electrical devices having different power disconnect requirements, comprising:
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a modular unit having a constant power input terminal adapted to be connected with a battery to provide a source of constant D.C. voltage, and an ignition controlled power input terminal adapted to be connected to an ignition system of the vehicle to provide a source of ignition controlled D.C. voltage upon the ignition system being turned on; a plurality of constant power output terminals connected with said constant power input terminal for connecting auxiliary electrical devices to be supplied with constant power independently of the operation of the vehicle ignition system; a plurality of ignition controlled power output terminals connected with said ignition controlled power input terminal for connecting auxiliary electrical devices to be supplied with ignition controlled power when the ignition system is turned on; fuse elements connected between said constant power input terminal and said plurality of constant power output terminals and between said constant power input terminal and said plurality of ignition controlled power output terminals; and timing means and relay means connected between said constant power input and ignition controlled power input terminals and said plurality of ignition controlled power output terminals to provide ignition controlled voltage to said plurality of ignition controlled power output terminals upon said ignition system being turned on, and to immediately disconnect voltage to said plurality of ignition controlled power output terminals upon the ignition system being turned off. - View Dependent Claims (11, 12)
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Specification