Integrated energy storage system and junction box thereof

The utility model relates to an integrated energy storage system and a junction box thereof, and relates to the field of energy storage technology, the integrated energy storage system comprises a box body, a threading pipe is arranged on the box body, a cable passes through the threading pipe to be electrically connected with the box body, and the threading pipe is connected with the box body through a bent pipe. And the threading pipe, the bent pipe and the box body are communicated with one another. The wiring direction in the threading pipe can be perpendicular to the wiring direction in the box body through the arrangement of the threading pipe and the bent pipe, so that the installation and wiring work of the junction box are facilitated, and the wiring possibility of the junction box in a narrow space is ensured; in addition, the threading pipe is perpendicular to the box body, the installation space occupied by the whole junction box can be reduced, the junction box can be conveniently installed in a