Two-phase immersed battery liquid cooling box filled with phase change capsules

Abstract

The invention belongs to the technical field of power batteries and provides a two-phase immersed battery liquid cooling box filled with phase change capsules. Gaps between the batteries and between the batteries and the box body are filled with the phase change capsules so that consumption of the fluorination liquid is reduced, and cost of two-phase immersed liquid cooling is further reduced. Compared with two-phase immersed liquid cooling without filling the phase change capsules, the two-phase immersed liquid cooling device is advantaged in that the filled phase change capsules occupy mostof gap space so that the dosage of the fluorination liquid is reduced to the minimum, and cooling cost is greatly reduced; under the extreme condition, the capsules can play a role in buffering impact, and potential safety hazards caused in the impact process are reduced; the phase-change materials in the capsule can buffer heat generated in the working process of the battery so that cooling energy consumption of the system is reduced.

Description

technical field [0001] The invention belongs to the technical field of power batteries, in particular to a two-phase submerged battery liquid cooling box filled with phase change capsules Background technique [0002] With the rapid development of new energy vehicles, the power battery as the heart of new energy vehicles has attracted the attention of many companies. The thermal safety performance of power batteries will directly affect the overall performance of electric vehicles, so designing an efficient battery thermal management technology is a necessary condition to improve the overall performance of electric vehicles. At present, a two-phase immersion liquid cooling method has been proposed in the field of battery thermal management. The entire battery module is placed in a closed box with simple structure and high energy density. [0003] Although the two-phase immersion liquid cooling method simplifies the heat transfer process and minimizes cooling power consumpt...

AI Technical Summary

Problems solved by technology

[0003] Although the two-phase immersion liquid cooling method simplifies the heat transfer process and minimizes cooling power consumption, but because the fluorinated liquid used is extremely expensive, this cooling method has not been promoted in the market

In view of the high cost of the above-mentioned two-phase immersion liquid cooling, the present invention proposes a two-phase immersion battery liquid cooling box filled with phase change capsules, which can greatly reduce the consumption of fluorinated liquid, and achieve two-phase immersion liquid cooling. While cooling, it also greatly reduces the cost, laying the foundation for the widespread promotion of two-phase immersion liquid cooling in the market

Images