Box battery pack with insulation safety structure

Abstract

The invention relates to a secondary power supply, and particularly relates to a box battery pack with an insulation safety structure. The box battery pack is structurally characterized by comprising a plurality of vertically and horizontally arranged battery modules distributed in a box, and each battery module comprises a plurality of single batteries, an insulating base and an insulating top cover; and the box battery pack also comprises a fixed L plate and a box, wherein the fixed L plate is used for fixedly installing and connecting the plurality of horizontally-arranged battery modules. The box battery pack disclosed by the invention has the advantages that through taking the battery modules as component units, carrying out overall insulated wrapping on the battery modules and carrying out insulated isolation among single batteries in the modules, the connection and disconnection operations between the single batteries in the modules and between the modules are effectively distinguished, so that the potential safety hazards in the aspect of operation are reduced, and a modularized operation can be performed both in the aspects of application and maintenance, therefore, the box battery pack is simple and convenient to operate. In addition, because a radiating channel is left due to incomplete isolation, the temperature difference between the single batteries is effectively reduced, thereby prolonging the service life of the batteries and ensuring the application performance of the batteries.

Description

technical field [0001] The invention relates to a secondary power supply, in particular to a box battery pack with an insulating safety structure. Background technique [0002] In the existing technology, facing many problems such as serious environmental pollution, depletion of oil resources, and climate warming, the research and development of energy storage technology has attracted more and more attention from the energy, transportation, and electric power departments of various countries. As a key component of energy storage, batteries directly affect the performance of energy storage systems. Due to the large number of batteries required by the energy storage system, several single batteries are usually used to form a battery module, and then a large energy storage system is formed by combining multiple battery modules. Limited by space, the batteries in the energy storage system need to be closely arranged and connected, and their electrodes are densely arranged toget...

AI Technical Summary

Problems solved by technology

Limited by space, the batteries in the energy storage system need to be closely arranged and connected, and their electrodes are densely arranged together. Therefore, when installing and connecting the batteries, it is easy to be misconnected, and because the distance between the battery electrodes is too close, the operation It is easy to short circuit when operating one of the electrodes, and it is easy to touch the adjacent battery electrode when operating one of the electrodes, causing electric shock to the human body; in addition, all the electrodes and the connections between the electrodes are exposed, so the above-mentioned battery module has potential safety hazards question

[0003] In addition, when the closely arranged battery cells are charged and discharged at different rates, the battery will generate a large amount of heat at different heat generation rates, and the accumulation of time and the influence of space will produce uneven heat accumulation, which will lead to a decrease in the operating environment temperature of the battery pack. complex and changeable

Due to the dense arrangement of a large number of batteries, the middle area will inevitably accumulate more heat, while the edge will be less, resulting in a large temperature difference between the single cells of the battery pack, and exacerbating the inconsistency of the internal resistance and capacity of the batteries.

If it accumulates for a long time, it will cause some batteries to overcharge and overdischarge, which will affect the life and performance of the battery and cause safety hazards

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