Patent ID: 8651689
Filing Date: 2014-02-18
Classification: F21S,F21V,F21Y,G02F

Abstract:
1. A light emitting diode (LED) light bar structure having heat dissipation function, adapted for a backlight module, characterized in that: the LED light bar structure comprises: a heat dissipation body having a first surface and a second surface opposite to the first surface, the first surface provided with a plurality of installation holes in row, the second surface protruding inwards to form a circuit board insertion slot, the circuit board insertion slot being shaped as a drawer-like slot, the drawer-like slot further comprising two rabbets which are formed on two opposite side walls of the circuit board insertion slot, at least one of the other two side walls being an open type which exposes the rabbets in a lateral direction of the heat dissipation body, said installation holes passing through the first surface to the circuit board insertion slot; a plurality of light emitting diodes (LEDs) each having a top and a bottom and being embedded in a respective installation hole, a plurality of first contact points being disposed on the bottom towards the circuit board insertion slot of the heat dissipation body, the first contact points being resilient and electrically conductive structures, at least one portion of peripheral surfaces of each of said LEDs being an inclined face, walls of said installation holes corresponding to the inclined faces of the LEDs to be oblique; and a circuit board received in the circuit board insertion slot, a plurality of second contact points disposed on an upper face of the circuit board and corresponding to the first contact points of said LEDs whereby the second contact points electrically connect respective first contact points, the circuit board being received in the rabbets of the circuit board insertion slot in a transverse direction of the heat dissipation body, and the resilient and electrically conductive structures of the LEDs tightly pressing and fixing the circuit board in the rabbets by applying a force onto the circuit board, wherein the peripheral surfaces of said LEDs are tightly fitted to said installation holes of the heat dissipation body so that heat generated by said LEDs is directly and laterally dissipated by the heat dissipation body.