Stacking connection structure of household energy storage system

The utility model discloses a stack connection structure of a household energy storage system, which comprises a plurality of battery Packs, a base and a high-voltage box, the base is arranged on the ground, a plurality of battery Packs are sequentially arranged on the base, the high-voltage box is arranged above the uppermost battery Pack, the plurality of battery Packs are electrically connected through a hot plug connector and are connected in series for capacity expansion, and the high-voltage box is arranged above the uppermost battery Pack. After the uppermost battery Pack is connected into the high-voltage box through a hot plug connector, positive and negative pole outputs of the batteries are led out from the high-voltage box and are electrically connected with external equipment, and connecting assemblies used for mutual limiting and fixing are arranged between the base and the battery Packs, between the adjacent battery Packs and between the battery Packs and the high-voltage box. According to the