Patent ID: 7866851

Claim:
An LED heat sink comprising an LED unit comprising a base having a top; and an LED chip attached to top of the base; and a pipe comprising an inlet end being attached to the base of the LED unit; an outlet end; and a body having an inner surface; and an outer surface; multiple inlets being defined near the base; multiple partitioning walls being formed inside the body; and multiple partitions being defined within the body by the partitioning walls, communicating with the inlet end and the outlet end and communicating respectively with the inlets; wherein the pipe has an axis; the body has an inner surface; each partitioning wall protrudes radially from the axis to the inner surface; the base is connected to the axis of the pipe and has an outer edge; each inlet is formed between the outer edge and the body; the axis further has a protruding shaft being connected to the base; the shaft has an outer surface; and an outer thread formed on the outer surface; the LED heat sink further has a conducting block being attached to the shaft and having a shaft recess being screwed to the shaft; and the base is attached to the conducting block.