Negative Poisson's ratio honeycomb composite structural member filled with functional liquid and preparation method and application thereof

CN122058596APending Publication Date: 2026-05-19SHANDONG WAN GAO ELECTRONICS TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG WAN GAO ELECTRONICS TECH
Filing Date
2026-02-02
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In existing technologies, traditional energy-absorbing structures have limited functionality, large mass, and cannot adaptively adjust to external loads. They also lack the ability to integrate thermal management and fire safety functions, which is particularly insufficient in key safety components of new energy vehicles.

Method used

A negative Poisson's ratio honeycomb structure is used to fill functional liquid, combined with a composite material skin to form a sandwich structure, integrating a microfluidic distribution system and sensors to achieve dynamic response and multifunctional integration of the structure.

Benefits of technology

While achieving lightweight design, it provides multifunctional integration, including damping dissipation, thermal management, and safety protection, making it suitable for battery pack housings and body protection components in new energy vehicles.

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Abstract

The invention discloses a negative Poisson's ratio honeycomb composite structural member filled with functional liquid and a preparation method and application thereof, and relates to the technical field of composite material structures, the negative Poisson's ratio honeycomb composite structural member comprises a negative Poisson's ratio honeycomb core layer composed of periodically arranged cell elements with negative Poisson's ratio characteristics; the functional liquid is filled and packaged in the cell element cavities of the negative poisson ratio honeycomb core layer; the composite material skin covers at least one surface of the negative Poisson's ratio honeycomb core layer in a sealed mode, the composite material skin and the core layer jointly form a sandwich structure used for sealing the functional liquid, and the negative Poisson's ratio honeycomb structure is combined with the functional liquid to form the negative Poisson's ratio honeycomb structure. According to the composite structural part, integration of multiple functions is achieved on the basis that the light weight characteristic is kept. The negative Poisson's ratio honeycomb core layer provides deformation stability and energy absorption efficiency superior to those of a traditional honeycomb structure, and the functional liquid packaged in the negative Poisson's ratio honeycomb core layer can provide additional damping dissipation, thermal management or safety protection functions according to the characteristics of the negative Poisson's ratio honeycomb core layer.
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