Wiring assembly used in building photovoltaic integrated system

The utility model discloses a wiring assembly used in a building photovoltaic integrated system, comprising a housing, two sides of the housing are provided with a plurality of groups of fixing blocks, each group of fixing blocks is internally provided with a limiting groove, the limiting groove is internally sleeved with a limiting rod and a limiting spring, the outer part of the limiting rod is provided with a fixing ring in a clamping manner, and the fixing ring is fixedly connected with the limiting rod. A pressing plate is fixedly installed at the top end of the limiting rod, multiple sets of clamping grooves are formed in the top end of the shell cover, and multiple sets of rubber protruding blocks are arranged in the clamping grooves, so that the outer shell of the junction box can be stably connected with the shell cover, meanwhile, the junction box can be conveniently installed and disassembled, and the problems that an existing junction box is unstable in connection through clamping blocks and buckl