Lithium battery pack with automatic deep water pressure compensation function

Abstract

A lithium battery pack with the function of automatically compensating deep water pressure is characterized in that it includes: an outer box body assembly, an inner box body assembly, an external pressure compensator, and a lithium battery; the outer box body assembly includes an outer box body and an outer box body The sealing ring and the upper cover provided on the box; the outer box is provided with an inner box assembly, and the inner box assembly includes an inner box, a battery management system, and a battery card slot provided on the inner box; The single lithium battery is installed in battery slots with equal distances; the external pressure compensator is connected to the outer box through an oil hose. The purpose of the present invention is to overcome the deficiencies in the existing battery technology and performance, and provide a new type of lithium battery pack with long life, high energy, flexible installation, large payload, convenient maintenance, and can work in any water depth.

Description

technical field [0001] The invention relates to a lithium battery pack with the function of automatically compensating deep water pressure. Background technique [0002] Deep-sea submersibles, deep-sea lifesaving equipment, oil drilling equipment, etc. usually need to work in a deep-sea pressure environment of hundreds of meters or even thousands of meters. As the diving depth increases, the external pressure on the battery pack also increases accordingly. According to the traditional method, the thickness of the shell material is increased to ensure the structural strength of the box. Although this method solves the problem of compressive strength, it increases the weight of the battery box and greatly reduces the payload of the submersible. [0003] Previously, silver-zinc secondary batteries were mostly used as power sources for underwater equipment, and their service life was only more than 30 times, and there were defects such as high maintenance costs and the inabili...

AI Technical Summary

Problems solved by technology

[0004] Direct pressure battery (that is, directly seal the battery or battery pack in the resin glue): on the one hand, once a single cell or circuit in the battery pack fails, there is a problem that it cannot be repaired, and the whole set can only be scrapped

On the other hand, when the number of series and parallel connections in the battery pack is large or the size of the battery is large, the gap between the batteries cannot be completely resolved; when under pressure, the battery pack is easily damaged due to the existence of the gap, and the reliability is very low. Difference

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