Battery module

Abstract

The invention relates to a battery module which comprises a battery component and a cooling component. The battery component is composed of power batteries and a battery box shell, the power batteries are arranged inside the battery box shell and are arranged in order according to the lining structure, the cooling component comprises a Sandia radiator shell, a Sandia radiator and a vacuum-chamber soaking plate, and the Sandia radiator is sleeved inside the Sandia radiator shell and is closely attached to the top of the vacuum-chamber soaking plate which is inserted among the gaps among the power batteries to be in close contact with surfaces of the power batteries; the Sandia radiator shell, the Sandia radiator and the vacuum-chamber soaking plate are fixedly connected with the battery box shell through bolts. By the combination of the vacuum-chamber soaking plate and the Sandia radiator and bearing type heat exchange technology by application of vacuum pressure and capillary action to conduct heat and air, cooling property of battery thermal management is improved, the module is simplified in structure, cost is lowered, and safety performance, cruising power, specific energy and energy utilization rate of the battery module are increased.

Description

technical field [0001] The invention relates to the technical field of energy storage devices, in particular to a battery module. Background technique [0002] With the increasing demand for new energy vehicles, safety accidents such as spontaneous combustion and explosions of electric vehicles are also becoming more and more frequent. The reason for the spontaneous combustion and explosion of electric vehicles is not only the problem of the battery itself, but also the battery thermal management system that controls the temperature of the battery. To some extent, it can be said that the quality level of lithium batteries in China is not low, and it is the world's largest in terms of production scale. The hardware facilities are already at an advanced level, but many batteries still only have a life span of two or three years, an important shortcoming. It is still in battery thermal management, so battery thermal management is regarded as the core technology of new energy v...

AI Technical Summary

Problems solved by technology

[0005] Traditional air-cooled heat dissipation has a "dead air" area, high noise, and low heat dissipation efficiency, while Sandia's heat dissipation architecture adopts an "air bearing heat exchange" technology. Sandia radiator consists of a base, a rotating motor and a rotating Composed of heat dissipation fins, there is no traditional fan part, but the heat dissipation efficiency of the Sandia structure is nearly 900 times higher than that of the traditional heat pipe plus fin air-cooled radiator

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