System for Lighting Refrigeration Cabinets Using LED Lights

A lighting system for the interior of the commercial-type refrigeration cabinets, with glass doors, wherein it includes modules formed by:

• a. a light source based on LED lights connected to each other,
• b. a driver or rectifier circuit with regulation of supply current to the light source,
• c. a diffusion tube to connect the set of LEDs mounted on the driver, said lighting system comprising:
• i) the light source is comprised by modules of two or three serial-connected LEDs, wherein the modules are interconnected to the rest of the modules, whether serial-connected or preferably parallel-connected;
• ii) the rectifier circuit or driver mounted on the printed circuit board or PCB, provides a direct current supply, rectifying the current signal with a diode bridge;
• the driver includes an arrangement of parallel-capacitors by which the current passes prior to correction;
• after correction, one or two linear preprogrammed integrated circuits are used by means of the resistances to provide a constant amount of current;
• iii) the set of LEDs mounted on the PCB are encapsulated at the interior of the diffusion tube, which also serves as heat dissipation means;
• LEDs mounted on the PCB are maintained at the interior of the diffusion tube by the application of hermetic caps in both ends of the diffusion tube;
• where said hermetic caps allow going through the wall, from the electric connectors to supply the current to the set;
• iv) modules can be connected to each other to form luminaries of several lengths;
• and
• v) luminaries thus formed can be connected to each other to be adapted to the geometric configuration of the interior of cabinets, thus comprising the lighting system.