Protective device and lithium battery pack

By designing a protective device of a multi-layer protective structure, the coordination of elastic components and adjustment components is used to solve the problem of disassembly of the solid-state battery protective case, and the effect of simplifying maintenance and improving safety is achieved.

CN119651018APending Publication Date: 2025-03-18HOZON NEW ENERGY AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202411702647.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

In solid-state battery applications, existing protective cases are difficult to disassemble and complex to operate, resulting in long maintenance time and high risk of errors, and limiting the battery inspection frequency and efficiency.

Method used

A protective device is provided, including a first housing and a second housing of a multi-layer protective structure. Through the cooperation of the elastic component and the adjustment component, the positioning or convenient removal of the first housing in the second housing is realized, thereby simplifying the inspection, replacement or maintenance process of the battery body.

Benefits of technology

Reliable protection of lithium battery packs is achieved, disassembly process is simplified, maintenance risks are reduced, and the safety and efficiency of battery packs are improved.

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Abstract

The invention provides a protection device and a lithium battery pack, and relates to the technical field of lithium battery packs. The protection device comprises a first shell and a second shell, a first cavity is formed in the first shell, a first opening communicated with the first cavity is formed in the side portion, in the first direction, of the first shell, the first cavity is used for containing a battery body, and an elastic assembly is arranged at the bottom of the first shell; the second shell is internally provided with a second cavity, the top of the second shell is provided with a second opening communicated with the second cavity, and the second cavity is used for containing the first shell and sealing the second opening through the first shell; the two adjusting assemblies are movably arranged on the two opposite sides of the second shell in the second direction, and the adjusting ends of the adjusting assemblies are located in the first cavity, matched with the first shell and used for adjusting the first shell to be fixed in the second cavity or move out of the second shell.
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