A battery management independent automatic cooling system

Abstract

The invention belongs to the technical field of battery management, and specifically relates to an independent and automatic cooling system for battery management. An inner cavity of a power supply shell of the cooling system is divided into an upper hollow cavity, a middle hollow cavity and a lower hollow cavity by a sealing plate, battery monomers are located in the middle hollow cavity, the surfaces of the battery monomers are in contact with a heat absorption branch pipe, a lower end of the heat absorption branch pipe communicates with the lower hollow cavity of the power supply shell, the lower hollow cavity is connected with an ultrasonic nebulizer, the upper end of the heat absorption branch pipe communicates with the upper hollow cavity provided with an exhaust fan of the power supply shell, semiconductor thermistors are arranged on the surfaces of the battery monomers, solenoid valves serially connected with the corresponding semiconductor thermistors are arranged on the upper end port of the heat absorption branch pipe, and a pressurization air blower is arranged in the lower hollow cavity of the power supply shell. The independent and automatic cooling system provided by the invention has a simple structure and a low cost, and can independently and automatically cool the battery monomers in collectively stacked storage battery packs and meet the long time working demands of the battery packs.

Description

technical field [0001] The invention belongs to the technical field of battery management, and in particular relates to an independent automatic cooling system for battery management. Background technique [0002] At present, in the battery management system, the latest cooling technologies mainly include: [0003] ①Lithium battery phase change latent heat insulation cover to cool down. This insulation cover is a low-cost, high-efficiency passive battery heat management technology. The lithium battery cooling jacket is made of a mixture of 42°C phase change material and superconducting thermal material. The heat generated by the lithium battery is absorbed by the phase change material and then the heat is quickly exchanged with the ambient temperature through the superconducting thermal material. Due to the phase change The material tends to be at a constant temperature, and the lithium battery is always in a constant temperature environment of about 42°C to ensure the safe...

AI Technical Summary

Problems solved by technology

[0005] The above two cooling schemes belong to the use of phase change latent heat technology to cool the battery, which can realize the cooling of the battery cell, but if the working time of the battery cell is too long, the heat absorption of the insulation cover reaches the limit, because each battery The cells are stacked together, and heat exchange with the surrounding environment cannot be realized, so this solution is only suitable for the environment where the battery is in short-term work

For intelligent independent cooling of battery cells, there is no feasible technology at present, and this problem needs to be solved urgently

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