Connector mounting bracket of battery pack and battery pack

The invention relates to a connector mounting bracket of a battery pack and the battery pack. The connector mounting bracket is mounted in an assembly hole of a double-layer structural profile beam and comprises a mounting plate and mounting feet; the mounting plate is provided with a connector mounting hole, the two side faces of the mounting plate are a connecting face for assembling a connector and a sealing face for sealing the outer side face of an outer layer structure around a double-layer structure profile beam assembling hole respectively, and the fixed ends of the mounting feet are fixed to the sealing face of the mounting plate. The free ends of the mounting feet at least partially abut against the inner side face of the inner layer structure around the assembly holes of the double-layer structure profile beam. The double-layer structure of the profile beam is fully utilized, the sealing face of the mounting plate and the outer surface of the profile beam are sealed, the mounting feet and the inner