A light emitting diode (LED) lighting module with an improved heat
dissipative structure comprises a plurality of the LEDs and a heat pipe
apparatus on which at least a circuit layer is provided. The circuit
layer is directly formed on an electrical insulation layer with superior
heat conductivity on a surface of the heat pipe apparatus. The LEDs are
electrically connected to the circuit layer. Furthermore, the heat pipe
apparatus can be a flat heat pipe or the combination of plate-shaped heat
pipes, heat sinks and a fan. Because the LEDs are directly mounted on the
surface of the heat pipe apparatus, the heat generated by the lighting
LEDs is effectively delivered to the atmosphere due to the reaction of
latent heat phase transformation in the heat pipe apparatus. Moreover,
the heat is delivered to the heat sinks at far sides for heat exchange so
that improved heat dissipation and a space saving result are achieved.