Battery assembly of CTP configuration, electric vehicle and design method

Abstract

The invention relates to a battery assembly of a CTP configuration, an electric vehicle and a design method. Comprising a battery box body and a battery pack arranged in the battery box body, the battery pack comprises a battery module with a CTP structure, a box body cross beam, a water cooling plate, a box body front end plate, a heat-conducting structural adhesive, a box body rear end plate and a water pipe joint; the battery box body comprises a box body front end plate, a box body rear end plate, a box body bottom plate and box body side plates; the battery module is fixed on the water cooling plate; the battery modules in the length direction of the battery box body are separated by box body cross beams; the battery modules in the width direction of the battery box body are separated by a water cooling plate; the water pipe connector is connected with a runner of the water cooling plate. Integration of the water cooling plate and the box body side plate can be achieved, the water cooling plate assembly, the box body rear end plate and the box body front end plate form a closed heat management cooling liquid flow channel loop, the water pipe connector is externally connected, dry-wet separation and water-pipe-free design in the battery pack can be achieved, the assembly performance is improved, and the assembly efficiency is improved. And the leakage risk caused by the water pipe adapter is reduced.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a CTP configuration battery assembly, an electric vehicle and a design method. Background technique [0002] At present, the development prospects of new energy vehicles are very broad, but with the development of technology, various safety issues of new energy vehicles frequently arise. As a key core component of new energy vehicles, the integration of power batteries has always been a difficult problem in the industry. At present, the components of lithium-ion batteries are complex and various, and it is impossible to realize integrated design. [0003] In response to the above problems, the application with the publication number CN209389112U provides a battery pack, which includes more than two battery modules; each battery module includes a frame and a plurality of battery cells accommodated in the frame; adjacent A sleeve is fixedly arranged between the frames; the sl...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a CTP configuration battery assembly, an electric vehicle and a design method thereof. The battery unit is laid on its side and the water-cooled plate is fixedly arranged to realize the integration of the water-cooled plate and the side plate of the box body, and the water-cooled plate assembly 3 and The flow channel structure inside the box rear end plate 6 and the box front end plate 4 forms a closed thermal management coolant flow channel circuit, and the external connection water pipe joint 7 can realize the separation of dry and wet inside the battery pack. The design of no water pipe improves the assembly performance , reducing the risk of leakage caused by water pipe conversion joints, and solving the problem that the existing battery components are complicated and cannot be integrated

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