Battery, vehicle-mounted connecting device, topological architecture and electric equipment

The utility model discloses a battery, a vehicle-mounted connecting device, a topological framework and electric equipment, the battery comprises a battery module and a first control assembly, the first control assembly is electrically connected with the battery module, and the first control assembly comprises a first shell; a bus bar; a first battery management unit; the first voltage sampling module, the bus, the first battery management unit and the first voltage sampling module are located in the first shell, and the first voltage sampling module is electrically connected with the bus and the first battery management unit. According to the embodiment of the invention, the integration level of the battery can be improved, and cost reduction is facilitated.