BATTERY PACK AND BEAM ASSEMBLY FOR BATTERY PACK

A battery pack includes a first battery unit, a second battery unit, a plate member, a thermal insulation plate, and an air flow channel. The plate member extends between the first battery unit and the second battery unit in a first direction. The thermal insulation plate is disposed between the plate member and the first battery unit. The first battery unit has a first vent hole facing the plate member. The air flow channel formed between the plate member and the thermal insulation plate.