Patent ID: 7338186

Claim:
An assembled structure of a large-sized LED lamp, comprising: a substrate ( 1 ); a plurality of LED modules ( 2 ) fixed on one surface of the substrate ( 1 ), each LED modules ( 2 ) comprising a circuit board ( 21 ) and a plurality of LEDs ( 22 ) fixedly connected to the circuit board ( 21 ); a lamp mask ( 3 ) mounted on the surface of the substrate ( 1 ) provided with the LED modules ( 2 ) so as to cover the LED modules ( 2 ); a plurality of heat-dissipating modules ( 5 ) fixedly provided on the other surface of the substrate ( 1 ), each heat-dissipating module ( 5 ) provided to correspond to each LED module ( 2 ); and a lamp cover ( 6 ) mounted on the surface of the substrate ( 1 ) provided with the heat-dissipating modules ( 5 ) so as to cover the heat-dissipating modules ( 5 ) wherein each heat-dissipating module ( 5 ) comprises a plurality of heat-dissipating fins ( 51 ) arranged at identical intervals, two U-shaped heat pipes ( 52 ) penetrating through the heat-dissipating fins ( 51 ), and wherein a hole is formed on each heat-dissipation fin ( 51 ) so as to make a tunnel formed in the heat-dissipating module ( 5 ), and both elongated ends of each U-shaped heat pipe ( 52 ) are embedded in the heat-dissipating fins ( 51 ) to respectively locate above and beneath the tunnel while a lower elongated end of the U-shaped heat pipe ( 52 ) has a flat surface exposed out and leveled with a lower surface of the heat-dissipating module ( 5 ) so that when the heat-dissipating module ( 5 ) is fixed, the flat surface together with the lower surface are directly contacted on the surface of the substrate ( 1 ) provided with the heat-dissipating modules.