Battery box body and battery pack

Abstract

The embodiment of the utility model provides a battery box body and a battery pack, and belongs to the technical field of battery pack structures. The battery box body comprises a liquid cooling bottom plate, an integrated component and a frame assembly, the frame assembly comprises two side frame pieces, two ends of the integrated component are respectively connected with the side frame pieces, so that the integrated component and the frame assembly jointly define a containing space for containing the battery cell group, the upper part of the containing space is used for sealing the box cover, and the liquid cooling bottom plate is connected with the bottom of the containing space; a liquid injection opening is formed in one side of the liquid cooling bottom plate, the side, facing the containing space, of the integrated component is in sealed connection with the liquid injection opening through a first welding piece, and the two ends of the integrated component are in sealed connection with the frame assembly through second welding pieces correspondingly. According to the battery box and the battery pack provided by the embodiment of the invention, the influence of electric welding on the reliability of the welding piece between the integrated component and the liquid injection port can be avoided, the failure of the welding piece between the integrated component and the liquid injection port is effectively prevented, the structure is simpler and more compact, the integration is higher, and the disassembly, assembly and maintenance are convenient.

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