Combined type radiating fin structure

The invention discloses a combined type radiating fin structure, which is formed by overlapping and assembling of a plurality of radiating fins. The each radiating fin comprises a fin body, two straight edges and at least one lug part; wherein the fin body is provided with at least one slot hole; the two straight edges are respectively arranged at the edges of two sides of the fin body; the at least one lug part is arranged on the at least one straight edge in a protruding mode, a protruding part is arranged on the each lug part, and the aperture width of the slot hole is smaller than the sumof the widths of the lug part and the protruding part; when the plurality of radiating fins are assembled, the protruding parts of the lug parts of the radiating fins can pass through the corresponding slot holes of the fin bodies of the adjacent radiating fins, and then the protruding parts of the lug parts can be abutted and clamped on the edges of two sides of the slot holes, so that the lug parts cannot exit from the