Protection of A/V components
View Patent ↗An electrical connection box for wall mounting provides a recessed external plug for receiving or transmitting power to electronic components. The connection box is configured to receive a variety of signal connection modules for interconnecting associated audio/visual electronics such as DVD players, displays and the like in adjacent apertures. The signal connection modules are inserted or extracted from the face of the connection box; replacing blanking plates, and is optionally recessed from the face of the box into the wall cut-out. The configuration and mating features of the box and modules also provides for a common and isolated ground reference for surge protection of the connected components. A signal connection module includes circuitry for surge protection of the connected A/V components receiving electrical power from an adjacent wall socket. The protection circuits in the signal connection module provides an isolated ground reference for the A/V components sharing a common ground connection at the wall socket, or a power conditioning module connected thereto.
1. An Audio/Visual system comprising:
a) a power conditioning module having an input connection in which phase, neutral and ground wires are connected to a power mains circuit, and two or more power output connections,
b) a signal generator having a plurality of signal output terminals, and a power connection port for phase, neutral and ground wires, wherein
i) the power connection port of said signal generator is connected to the first power output connection of said power conditioning module,
c) a display unit having at least one signal input port and power input connections for phase, neutral and ground,
d) a proximal connection receptacle comprising;
i) a power receptacle, the power receptacle having respective input and outlet ports subdivided into separate phase, neutral and ground terminals, each terminal being connected in series to the corresponding terminal in the input or outlet port,
ii) at least one signal receptacle having a plurality of input junctions connected to corresponding outlet junctions, the junction connections being subdivided by plural conductive lines that include at least one signal path and a ground wire, and
e) a remote connection receptacle comprising:
i) a power receptacle, the power receptacle having respective input and outlet ports subdivided into separate phase, neutral and ground terminals, each terminal being connected in series to the corresponding terminal in the other port, and
ii) at least one signal receptacle having a plurality of input junctions connected to corresponding outlet junctions, the junction connections being subdivided by plural conductive lines that include at least one signal path and a ground wire,
f) wherein the power input port of said proximal connection receptacle is connected to another output connection of said power conditioning module,
g) the power outlet port of said proximal connection receptacle is connected to the power input port of said remote connection receptacle, and
h) wherein said display is energized via connection to the outlet ports of the remote connection receptacle,
i) the signal input and outlet junctions of said proximal connection receptacle interconnect said signal generator and said display unit via the signal input and outlet junctions of the remote connection receptacle, and
j) at least one of the proximal and remote connection receptacles provides a common ground connection between said signal generator, said display unit and said power-conditioning module,
k) whereby said display and said A/V signal generator share a common conditioned power source from said power conditioning module, and said display receives at least one of an audio or visual signal via connection to the outlet junction of the remote connection receptacle.
2. An Audio/Visual system according to claim 1 wherein the proximal and remote connection receptacles are mounted into a wall and interconnecting power cables and low voltage signal cable are on one side of at least one wall and said A/V signal generator and said power-conditioning module are on an opposite side of the at least one wall.
3. An Audio/Visual system according to claim 1 wherein the a/v signal generator is selected from the group consisting of a CD player, a DVD player, audio signal generator, a stereo amplifier, a radio receiver, a cable TV box, a television receiver, a computer, a satellite receiver, and an HD TV signal generator.
4. An Audio/Visual system according to claim 1 wherein at least one of said input terminal and said outlet terminal of the connection receptacle are selected from the group consisting of RCA, VGA, Co-axial cable, phone, data communications and Ethernet type connectors.
5. An Audio/Visual system according to claim 1 wherein the a/v signal generator is selected from the group consisting of a CD player, a DVD player, audio signal generator, a stereo amplifier, a radio receiver, a cable TV box, a television receiver, a computer, a satellite receiver, and an HD TV signal generator.
6. An Audio/Visual system according to claim 1 wherein at least one of the proximal and remote connection receptacles comprises a noise filtering circuit to prevent AC line noise from interfering with a quality of said display receiving AC power therefrom.
7. An Audio/Visual system according claim 1 wherein at least one of the proximal and remote connection receptacles comprises a surge protection circuit operative to protect equipment connected to the input and output connectors by shunting current to the common ground connection said power receptacle and said signal receptacle located therein.
8. An Audio/Visual system according to claim 1 wherein both the proximal and remote connection receptacles comprises a surge protection circuit operative to protect equipment connected to the input and output connectors by shunting current to the common ground connection between said power receptacle and said signal receptacle located therein.
9. An Audio/Visual system according to claim 1 wherein a twist lock power plug from said power conditioning module connects to the power receptacle of the proximal connection receptacle.
10. An Audio/Visual system according to claim 1 further comprising a surge protection circuit in at least one of said proximal and remote connection receptacle, said surge protection circuit being operative to protect interconnected components from overvoltage conditions on said signal receptacle conductive lines.
11. An Audio/Visual system according to claim 10 wherein the surge protection circuit in at least one of said proximal and said remote connection receptacle deploys a uni-directional voltage limiting device to isolate said signal receptacle conductive lines from surges arising in the power receptacle.
12. An A/V system comprising:
a) a power conditioning module having an input connection in which phase, neutral and ground wires are connected to a power mains circuit, and at least one power output connection,
b) a display unit having at least one signal input port and power input connections for phase, neutral and ground,
c) a conditioned power receptacle having an input port receptacle and an outlet port each respectively subdivided into separate phase, neutral and ground wires terminals, each terminal being connected in series to the corresponding terminal in the input or outlet port, and
d) a remote power receptacle having respective input port receptacle and outlet ports subdivided into separate phase, neutral and ground wire terminals, each terminal being connected in series to the corresponding terminal in the other port,
e) wherein the input port receptacle of said conditioned power receptacle is connected to the at least one power output connection of said power conditioning module,
f) wherein the output port receptacle of said conditioned power receptacle is connected to the respective phase, neutral and ground terminals of the input port receptacle of the remote power receptacle, and
g) wherein said display unit is energized via connection to the output port receptacle of the remote power receptacle.
13. An A/V system according to claim 12 wherein the power output connection of said power conditioning module is a twist lock power plug and the input port receptacle of said conditioned power receptacle is a twist lock socket.