Junction box and photovoltaic module

The utility model discloses a junction box and a photovoltaic assembly, relates to the field of photovoltaic technology, and aims to improve the wiring reliability and stability of the junction box soas to ensure the generating capacity and safety of a photovoltaic system. The junction box is applied to a photovoltaic module with a leading-out wire. The junction box comprises a box body and a terminal board arranged in the box body. The box body is provided with a first through hole used for limiting the leading-out wire. The terminal board is located on one side of the first through hole. The terminal board is provided with a welding area and a convex edge structure. The bead structure defines a welding flux flow region in the welding region. When the junction box and the leading-out wire are in an electric connection state, the leading-out wire penetrates through the first through hole and is welded to the welding area. The photovoltaic module comprises the junction box. The junction box provided by the uti