Battery pack and powered device

Abstract

The present disclosure provides a battery pack and an electrical equipment. The battery pack comprises a plurality of battery groups and a box. The box comprises a plurality of containers stacked and fixed together along a height direction, the plurality of containers respectively accommodating the plurality of battery groups, the plurality of containers comprising an upper container and a lower container, the upper container being located above the lower container, the battery group in the upper container comprising a plurality of upper layer batteries, the battery group in the lower container comprising a plurality of lower layer batteries, the bottom of the upper container being provided with a heat exchange plate supporting the plurality of upper layer batteries, the heat exchange plate being in heat exchange with the plurality of upper layer batteries in the upper container and the plurality of lower layer batteries in the lower container. The heat exchange plate is in direct contact with the upper layer batteries and indirect contact with the lower layer batteries, and can cool both at the same time, significantly improving the response speed and temperature control efficiency of the battery pack to the change of thermal load.

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