Battery module and manufacturing method

Abstract

The invention discloses a battery module and a manufacturing method. The battery module mainly comprises batteries, vertical columns, end plates and lateral plates, wherein the vertical columns are fixed and limited to the end plates through tenon-and-mortise structures in advance, and the vertical columns are tightly installed on the end plate through bolts; the vertical columns are used for fixing at least one of a tray on the upper layer and a top plate on the lower layer. Because the tenon-and-mortise structures are adopted between the vertical columns and the end plates, the problem thatin the prior art, when placed, the vertical columns cannot be pre-fixed is solved, great convenience is brought to subsequent assembly, the calibration time is reduced during installation, and the PACK efficiency is effectively improved. Liquid cooling system installation grooves are reserved in the end plates, and a liquid cooling system is conveniently designed. Wire binding holes used for fixing a wire group and mortise holes used for connection are formed in the surface of the module. Lateral plate connecting grooves are reserved in the lateral sides of the end plates of the modules, and after being bent, the lateral plates of the module can be connected with the end plates of the module so that a shell of the module can bear larger battery swelling force.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery module and a manufacturing method. Background technique [0002] At present, the global automobile industry is facing the huge challenge of energy and environmental issues; pure electric vehicles with high energy utilization rate and no pollution to the environment are increasingly becoming the development direction of the future automobile industry. As the core component of a pure electric vehicle, the structural design and safety performance of the power battery pack will directly affect the overall performance of the pure electric vehicle. Since the installation space reserved for the battery pack in pure electric vehicles is small and irregular in shape, in order to make full use of the limited space of the battery pack, an upper tray is often required to place the upper module, and a lower module may also be added below the main body . It is especially necessar...

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a battery module and its manufacturing method. The upright column and the end plate adopt mortise and tenon cooperation to achieve the purpose of pre-fixing and limiting the position when installing the upright column, and solve the problem that the upright column cannot be pre-fixed when the upright column is placed before. Fixed issues to improve battery pack assembly efficiency and facilitate assembly

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