Light-weight large-module battery box

The utility model discloses a light-weight large-module battery box and relates to the technical field of batteries. The battery pack mainly comprises the outer box body and the battery pack, the temperature control mechanism, the heat diffusion mechanism and the water pump are arranged in the outer box body, the liquid fluid is heated through the PTC heating module, and then the heated liquid fluid can flow to the top and the side face of the battery pack through the water pump, so that the liquid fluid can exchange heat with the battery pack. And the battery pack is heated in a corresponding environment to ensure that the battery pack runs in a constant-temperature environment, so that the service life of the battery pack is prolonged. 本实用新型公开一种轻量化大模组电池箱，涉及电池技术领域。本实用新型中主要包括外箱体和电池组，并在外箱体内设置有控温机构、热扩散机构和水泵，通过PTC加热模组将液态流体加热，再通过水泵使加热后的液态流体能够流动至电池组的顶部及侧面，以使液态流体能与电池组进行热交换，在对应的环境下给电池组升温，确保电池组在恒温环境下运行，以延长其的使用寿命。