Modular signal and power connection device
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.
1. A connection box for wall mounting comprising:
a) a front face oriented outward, toward the interior of the room;
b) a first cavity extending inward from said front face;
c) a socket disposed at the bottom of said cavity for receiving a power plug connector having line, neutral and ground terminals from the interior of the room, said socket having corresponding input terminals for line, neutral and ground wire connections disposed outside of the cavity for connecting a power cable from the wall interior;
d) an aperture in said front face for receiving at least one of a blanking plate and signal connection module;
e) two or more walls connected to said front face disposed on opposing sides of the aperture, said walls extending inward from said front face;
wherein at least one of said two or more walls is in electrical connection to a ground terminal of said socket.
2. A connection box according to claim 1 further comprising:
a) a signal connection module comprising;
i) a front face,
ii) at least two opposing sides parallel to each other and disposed perpendicular to said front face,
iii) a plurality of low voltage signal input sockets disposed on said front face,
iv) a plurality of low voltage signal output connectors disposed behind said front face and emerging rearward therefrom,
v) wherein at least one of said input sockets and said output connector connect at least one signal wire and a corresponding ground wire, and
vi) at least one of said signal wires and said ground wires are in electrical connection to a sidewall of the signal module,
b) wherein ground shield wires associated with one or more of the signal connectors is in electrical contact with the wall associated with the aperture in the connection box.
3. A connection box according to claim 2 , further wherein said signal connection module further comprises:
a surge protection circuit operative to protect equipment connected to the input and output connectors by shunting current to a common ground wire in electrical connection to the sidewalls of the signal connection module.
4. A connection module box according to claim 2 , further wherein said connection box further comprises:
a surge protection circuit operative to protect equipment connected to the input and output connectors by shunting current to a common ground wire in electrical connection to the sidewalls of the signal connection module.
5. A connection box according to claim 2 , further comprising means for latching a signal connection module in said aperture.
6. A connection box according to claim 5
wherein said latching means further comprises multiple position latching means.
7. A connection box according to claim 2 , wherein:
a) the signal connection module further comprises:
at least one spring loaded hemispherical portion extending outward, from one or more of the opposing parallel sides of said signal connection module, and
b) wherein the walls defining said aperture of the connection box include a hemispherical depression for receiving said hemispherical portion.
8. A connection box according to claim 2 wherein:
a) each of the two opposing walls that define said aperture of the connection box includes two or more hemispherical depressions, and
b) said signal connection module further comprises another spring-loaded hemispherical portion extending outward from the other opposing parallel side.
9. A connection box according to claim 2 wherein electrical continuity between the power socket ground and the ground wire in said signal connection module is provided by a latching connection mating the connection box and said signal connection module.
10. A connection box according to claim 8 , wherein said latching connection is provided by a mating feature in at least one of the connection box and said signal module that is urged into a receiving cavity in the other by a spring such that the mating feature retracts into the box or module upon inserting or moving the signal module with respect to the connection box.
11. A connection box according to claim 8 wherein at least one of the opposing parallel sides of said signal connection module comprises a protrusion across at least the open rearward end of the aperture in the connection box, whereby said signal protection module is precluded from being removed from the back of the connection box.
12. A connection box according to claim 2 , wherein said signal connection module further comprises a grip-receiving member disposed on the front face thereof for removal from the front of the connection box.
13. A connection box according to claim 11 wherein the grip-receiving member is an inward or outward protruding section of the front formed about slits in the front face whereby the slits provide access to a recessed edge behind at least a portion of the front face.
14. A connection box according to claim 2 further comprising:
a surge protection circuit connected to the power socket and operative to protect equipment connected to the input and output connectors of the signal protection module by shunting current to a common ground wire in electrical connection to the sidewalls of the signal connection module.
15. A connection box according to claim 1 , further comprising a noise filtering circuit connected to the power socket and operative to prevent AC lines noise from interfering with the quality of A/V equipment receiving AC power therefrom.
16. A connection box according to claim 1 wherein the power socket is of the twist lock connector type.
17. A connection box according to claim 1 wherein said front face includes a flange extending about the periphery thereof.
18. A connection box according to claim 1 capable of receiving two or more of at least one of:
a) blanking plates, and
b) a signal module in said aperture formed in said front face thereof.
19. A connection box according to claim 1 and further comprising
one or more signal connection modules, wherein said signal modules are adapted to be positioned in alternate locations by sliding within said aperture such that plugs connected into the front face of said signal connection module can be recessed within said aperture, being disposed rearward of the front face of the connection box.