Lithium-ion battery pack with series and parallel connection

Abstract

A series-parallel interchangeable lithium-ion battery pack, comprising an outer box with an upward opening, inside the outer box is a battery pack, a positive bus bar and a negative bus bar are designed inside the battery pack, and the positive bus bar and the negative bus bar are fixedly connected with The salient pole column is connected with a switchable series plate or parallel plate, the upper surface of the series plate is designed with a connecting bolt, the lower surface of the series plate is designed with a connecting piece, and the end of the connecting piece leads out to the terminal deflector. There are 2P connectors and 4P connectors connected to the sheet through studs, and concave poles are connected to the 2P connector and 4P connector. The concave poles are connected in series, and springs are designed between the concave poles and the series plate. The pole corresponds to the salient pole.

Description

technical field [0001] The invention relates to a lithium-ion battery pack, in particular to a lithium-ion battery pack with series-parallel switching. Background technique [0002] There is a consistency problem in the lithium-ion battery pack, which is the main factor restricting the development of the lithium-ion industry. Although the lithium-ion battery packs currently on the market have adopted protective boards or management systems to eliminate individual differences between lithium-ion battery packs, the effect is not obvious, especially some lithium-ion battery packs with protective boards often have problems The most important place is the balance of the protection board. Large-scale lithium-ion battery packs have higher requirements for lithium-ion battery packs, and it is more difficult to achieve the consistency of lithium-ion battery packs. There are many series and parallel connections of large lithium-ion battery packs, and the structure is complex, which ...

AI Technical Summary

Problems solved by technology

Although the lithium-ion battery packs currently on the market have adopted protective boards or management systems to eliminate individual differences between lithium-ion battery packs, the effect is not obvious, especially some lithium-ion battery packs with protective boards often have problems The place is the balance of the protection board

Large-scale lithium-ion battery packs have higher requirements for lithium-ion battery packs, and it is more difficult to achieve the consistency of lithium-ion battery packs

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