Sandwich-structured power battery arrangement apparatus applying high thermal conductivity foamy carbon material

Abstract

The invention discloses a sandwich-structured power battery arrangement apparatus applying a high thermal conductivity foamy carbon material. The apparatus comprises a framework, multiple groups of power battery packs arranged in the framework and a radiating mechanism arranged on the framework side and used for radiating the power battery packs; each power battery pack comprises multiple series-wound or shunt-wound single batteries; a foamy carbon sandwich layer and a resistance heating sheet are clamped between each adjacent single batteries; one end of the foamy carbon sandwich layer is tightly adhered to the radiating mechanism; and the radiating mechanism is a liquid-cooling radiating mechanism or an air-cooling radiating mechanism. The compact arrangement and thermal safety of a battery pack for an electric vehicle are realized; the sandwich-structured power battery arrangement apparatus has the characteristics of compact structure, small size, simple liquid-cooling pipeline, low cooling energy consumption, light vibration absorption, thermal oriented conduction, low thermal cross influence among batteries without improving the height of the floor of an original vehicle, and the like; and in addition, the connection between the battery and the radiation structure is simple, and a modularized design can be realized easily.

Description

technical field [0001] The invention relates to a fixing and heat dissipation structure of a power battery, in particular to a sandwich power battery arrangement device using a foamed carbon material with high thermal conductivity. Background technique [0002] As an energy storage device component, the power battery is the most critical core component of electric vehicles, and its performance directly determines the reliability, cycle performance and cost of electric vehicle products. Compared with other new energy vehicles, pure electric vehicles often need to be equipped with larger capacity batteries in practical applications. For this reason, small lithium-ion battery cells need to be closely arranged in series and parallel to form a large-capacity, high-power power battery pack, which leads to safety problems such as battery heat accumulation and temperature imbalance inside the battery pack. During the charging and discharging process of the actual operation of the p...

AI Technical Summary

Problems solved by technology

However, in the context of the miniaturization and weight reduction of electric vehicles, especially large-capacity battery packs need to be arranged under the chassis of the vehicle body. Due to material limitations, the thermal conductivity of plastic is not enough to provide effective heat dissipation for the battery. It is necessary to protrude copper sheets, heat pipes and other heat dissipation structures in the plastic shell, and the heat dissipation efficiency is difficult to improve.

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