Battery pack

By designing corresponding modules and pressure relief ports on the base plate in the battery pack, as well as partition plates and heat insulation layers, the thermal isolation problem of commercial heavy-duty truck battery systems during thermal runaway is solved, improving safety and pressure relief efficiency.

CN224366992UActive Publication Date: 2026-06-16EVE ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
EVE ENERGY CO LTD
Filing Date
2025-04-30
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

Commercial heavy-duty truck battery systems are difficult to effectively isolate thermally during thermal runaway, leading to reduced safety.

⚗Method used

A battery pack structure was designed in which the module pressure relief port of the battery module is opposite to and connected to the pressure relief port of the bottom plate. The independent pressure relief of each battery module is achieved through the connection between the pressure relief cavity of the bottom plate and the pressure relief cavity of the crossbeam. Combined with the partition plate and the heat insulation layer, the impact of thermal runaway on adjacent modules is reduced.

🎯Benefits of technology

It effectively reduces the impact of thermal runaway of a single battery module on adjacent modules, and improves the safety and rapid pressure relief capability of the battery system.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224366992U_ABST
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Abstract

The utility model provides a kind of battery pack, comprising: multiple battery modules, battery module includes module frame, module frame is provided with module pressure relief port;Box, including frame and bottom plate assembly, frame is enclosed in the four around of bottom plate assembly, and with bottom plate assembly jointly define the first accommodating cavity of one end opening, multiple battery modules are side by side arranged in the first accommodating cavity;Bottom plate assembly includes the bottom plate and bottom guard plate of laminated arrangement, bottom plate and bottom guard plate are spaced apart, and with frame jointly define bottom plate pressure relief chamber, bottom plate is provided with the bottom plate pressure relief port of the communication of bottom plate pressure relief chamber, bottom plate pressure relief port and module pressure relief port are communicated and oppositely arranged, each bottom plate pressure relief port and one of module pressure relief port are correspondingly arranged. The application can make each battery module have independent pressure relief port by making each bottom plate pressure relief port and one of module pressure relief port correspondingly arranged, to reduce the influence of adjacent battery module when single battery module occurs thermal runaway.
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