BOX BODY, BATTERY, AND ELECTRICAL DEVICE

A box body comprises an end plate, a face plate, and a medium flow channel, and the face plate is connected to one end of the end plate. The medium flow channel is used to accommodate a heat exchange medium. The medium flow channel is at least partially located on the end plate. The medium flow channel is provided with a medium inlet and a medium outlet, and the medium inlet and/or the medium outlet is arranged on the face plate. The box body is provided with the medium flow channel, and the medium flow channel is used for the heat exchange medium to pass through to carry out thermal management on a device in the box body.