Abstract: Provided is a lighting system having a printed circuit board on which a plurality of light emitting diodes are arranged; a base holding the printed circuit board; a heat sink provided on a lateral side of the base in a horizontal direction of the printed circuit board; a heat pipe which connects the base with the heat sink; and a rotating unit provided in at least end portion of one end portions and the other end portions of the base or the heat sink, to easily control the illuminating angle and the illuminating range and therefore to improve the energy efficiency, and to improve the heat-radiating property since the heat sink is provided in the lateral side of the substrate of heat-generating member.

Abstract: The present invention relates to a semiconductor chip cooling module with fin-fan-fin configuration employing a heat pipe provided with air ventilating means having a forced convection cooling type radiating method of forcedly cooling heat radiating fins by ventilating a wind to rapidly discharge and cool heat generated from a central processing unit (hereinafter referred to as “CPU”) mounted on a main board of a computer; the present invention comprises a heat radiating plate having a plurality of slots, a pair of heat pipes installed in the slots in a symmetrical relationship, and air ventilating means having a ventilating fan installed between heat radiating pins of the pair of heat pipes, wherein an air is ventilated to the heat radiating pins to forcedly radiate the heat radiating pins.

Abstract: An improved electrostatic discharge protection guide rail system for a PCB which is capable of providing an electrostatic discharge protection function so that a PCB of a plug-in unit disposed in a sub-rack of an electronic instrument from a damage due to an electrostatic discharge (ESD), which includes an ESD ground surface formed on the PCB, an engaging jaw portion formed in a lower portion of the guide rail and having a groove, and an insertion groove formed in a side portion of the guide rail in order for the ESD strip to be inserted therein, wherein the bent ESD strip is inserted into the insertion groove, the ESD ground surface contact portion and the ESD PCB contact portion are inserted into a groove formed in the engaging jaw portion of the guide rail, both ends of the ESD PCB having a copper plate are protruded beyond a side surface of a sub-rack and horizontally cross with respect to the parallel guide rails, and a ground cable is connected to both ends of the ESD PCB, respectively.