Liquid cooling plate integrated box body and battery box

Abstract

The invention provides a liquid cooling plate integrated box body and a battery box. The liquid cooling plate integrated box body comprises a box body and a bottom plate, the box body comprises a side plate forming an accommodating space with the bottom plate, a cooling liquid inlet and a cooling liquid outlet, and a flow channel from the cooling liquid inlet to the cooling liquid outlet is formed in the box body based on the side plates and the bottom plate. According to the liquid cooling plate integrated box body provided by the invention, the liquid cooling plate integrated box body can be compactly designed, so that the size of the battery box is reduced, meanwhile, the overall weight of the box body is reduced, the assembly process is reduced, and the production and installation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of new energy storage battery boxes, in particular to a liquid-cooled plate integrated box body and a battery box. Background technique [0002] With the development of the national economy and increasingly stringent environmental requirements, the new energy electric vehicle industry has received strong support to promote the rapid development of the industry. Among them, the power battery, as the main energy storage component, needs to be focused on in the design and development of new energy electric vehicles. The power battery will undergo certain charging and discharging behaviors during the use of the car, and will be accompanied by battery heating. In order to ensure the overall performance and service life of the power battery, the heat generated by the power battery needs to be dissipated in time. [0003] At present, the heat dissipation methods for batteries mainly include natural cooling, air co...

AI Technical Summary

Problems solved by technology

At present, the commonly used liquid cooling method usually adopts the combined assembly design of the liquid cooling plate and the box body. The structure of the assembly of the liquid cooling plate and the box body needs to fix the liquid cooling plate in the box to be assembled, and the box to be assembled needs to be pre-assembled. Leave enough space for the liquid cold plate to be placed, but fixing the liquid cold plate in the box requires bolts and other fixing parts for fixing, and the upper surface of the liquid cold plate is also provided with a heat conduction pad, resulting in many assembly parts in the battery box , heavy weight, large size, uncompact design, complex procedures during assembly, and low production and installation efficiency

On the other hand, for the current path of the coolant flow channel of the existing battery box, the overall temperature of the battery box rises and the temperature difference during the cooling process is large. With the increase of the charge and discharge rate and the extension of the working time, The temperature difference between batteries will further increase, which will affect the overall cycle life, system capacity, etc.

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