Battery pack cover plate and battery pack

By designing composite layers and flow channels, the problems of material performance degradation and uncontrollable energy transfer during battery thermal runaway are solved, achieving improved high-temperature resistance, lightweighting, and safety of electric vehicle battery packs, thus ensuring passenger cabin safety.

CN224367044UActive Publication Date: 2026-06-16ZHONGXIN NEW CARBON (XIAMEN) MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGXIN NEW CARBON (XIAMEN) MATERIAL TECH CO LTD
Filing Date
2025-05-28
Publication Date
2026-06-16

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Abstract

The utility model discloses a battery pack cover plate, it includes: composite layer, the composite layer includes at least three carbon fiber prefabricated body layers, the composite layer defines the accommodation space for accommodating battery pack shell, flow channel, flow channel sets up in the composite layer inside, and the entrance and the export of flow channel correspondingly with the inside and the outside of the accommodation space are open and shut, to guide the flame inside the accommodation space to the outside of the accommodation space, flow wing board, flow wing board connects the composite layer and is located at the export of flow channel, and flow wing board is used for guiding the flame at the export of flow channel and sprays downward. The battery pack cover plate has the advantages of high temperature resistance, lightweight, and can guide the flame and spray downward, delay the fire, can guarantee the safety of the passenger.
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