LED lighting system for a railway vehicle
First Claim
1. A lighting system comprising an auxiliary electrical module and lighting modules forming a row having a first light row end a second light row end, each one of the auxiliary electrical module and the lighting modules comprising:
- a printed circuit board (PCB) comprising a first end and a second end;
a first connector assembly located proximate the first end and comprising a first LED power connector and a first auxiliary power connector; and
a second connector assembly located proximate the second end and comprising a second LED power connector and a second auxiliary power connector, the first and second connector assemblies being compatible with each other;
wherein;
each lighting module further comprises light emitting diodes (LEDs) electrically connected between the first and second LED power connectors and, distinctly from the first and second LED power connectors, a direct electrical connection without additional circuit elements between the first and second auxiliary power connectors;
the auxiliary electrical module further comprises an auxiliary electrical component electrically connected between the first and second auxiliary power connectors;
the lighting modules and the auxiliary electrical module are electrically connected in an end-to-end relationship;
the first connector assembly on each lighting module comprises a first light modulation connector and the second connector assembly comprises a second light modulation connector, the first and second light modulation connectors being connected to each other for providing a light modulation signal to control an intensity of the LEDs; and
the connection between the first auxiliary connector and the second auxiliary connector is devoid of connections to the LEDs.
2 Assignments
0 Petitions
Accused Products
Abstract
There is described a lighting system for vehicles comprising light emitting diodes mounted on printed circuit boards (PCBs). Auxiliary components such as speakers are mounted on some of the PCBs lighting modules which are connected in an end-to-end relationship and which form light rows of the lighting system. Electrical traces for the auxiliary components form part of the PCBs. This results in a substantial reduction in or elimination of wiring. Connectors at each end of a PCB are compatible with the connectors on a neighboring PCB and are optionally connectable with a respective corresponding connector assembly of another lighting module in a direction substantially normal to the planar mounting surface of the PCB or in a direction substantially parallel to the planar mounting surface.
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Citations
14 Claims
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1. A lighting system comprising an auxiliary electrical module and lighting modules forming a row having a first light row end a second light row end, each one of the auxiliary electrical module and the lighting modules comprising:
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a printed circuit board (PCB) comprising a first end and a second end; a first connector assembly located proximate the first end and comprising a first LED power connector and a first auxiliary power connector; and a second connector assembly located proximate the second end and comprising a second LED power connector and a second auxiliary power connector, the first and second connector assemblies being compatible with each other;
wherein;each lighting module further comprises light emitting diodes (LEDs) electrically connected between the first and second LED power connectors and, distinctly from the first and second LED power connectors, a direct electrical connection without additional circuit elements between the first and second auxiliary power connectors; the auxiliary electrical module further comprises an auxiliary electrical component electrically connected between the first and second auxiliary power connectors; the lighting modules and the auxiliary electrical module are electrically connected in an end-to-end relationship; the first connector assembly on each lighting module comprises a first light modulation connector and the second connector assembly comprises a second light modulation connector, the first and second light modulation connectors being connected to each other for providing a light modulation signal to control an intensity of the LEDs; and the connection between the first auxiliary connector and the second auxiliary connector is devoid of connections to the LEDs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A lighting module forming part of a lighting system comprising an auxiliary electrical module and lighting modules forming a row having a first light row end a second light row end, each lighting module comprising:
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a printed circuit board (PCB) comprising a first end and a second end; light emitting diodes (LEDs) located on the PCB; a first connector assembly located proximate the first end and comprising a first LED power connector and a first auxiliary power connector; and a second connector assembly located proximate the second end and comprising a second LED power connector and a second auxiliary power connector, the first and second connector assemblies being compatible with each other thereby permitting connection of lighting modules in an end-to-end relationship; wherein the first and second LED power connectors are electrically connected to each other and to the LEDs by an LED electrical trace, and the first and second auxiliary power connectors are electrically connected to each other by an auxiliary electrical trace providing a direct electrical connection without additional circuit elements between the first and second auxiliary power connectors, the LED electrical trace and the auxiliary electrical trace being distinct; and the first connector assembly on each lighting module comprises a first light modulation connector and the second connector assembly comprises a second light modulation connector, the first and second light modulation connectors being connected to each other for providing a light modulation signal to control an intensity of the LEDs; and the connection between the first auxiliary connector and the second auxiliary connector is devoid of connections to the LEDs.
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Specification