一种基于压缩应变的辐射热调控组件、其制备方法及其应用
By combining a radiation-cooling film and an aerogel layer, and utilizing compressive strain to change the thermal conductivity of the aerogel, a switch between zero-energy passive cooling in summer and heat preservation in winter is achieved, solving the problem of insufficient heat preservation and cooling in cold environments in existing technologies.
CN117109093BActive Publication Date: 2026-07-17HEBEI UNIV OF TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEBEI UNIV OF TECH
- Filing Date
- 2023-08-23
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing radiant cooling materials have poor heat preservation effects in cold winters, and traditional radiant heating materials suffer significant heat loss in cold environments. Furthermore, existing thermal control films are insufficient in terms of large-area application and economic efficiency.
Method used
By combining a radiation-cooling film and an aerogel layer, the thermal conductivity of the aerogel is changed by compressive strain, thereby achieving active switching between heat preservation and cooling functions.
Benefits of technology
It achieves zero-energy passive cooling in summer and provides effective insulation in winter. It is easy to switch between, economical and environmentally friendly, and applicable to a wide range of occasions.
✦ Generated by Eureka AI based on patent content.
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Figure CN117109093B_ABST
Abstract
本发明提供了一种基于压缩应变的辐射热调控组件、其制备方法及其应用，辐射热调控组件包括气凝胶层和覆盖于所述气凝胶层上的辐射制冷薄膜，辐射热调控组件的保温与冷却功能的切换是通过向所述辐射制冷薄膜施力，压缩气凝胶层或不施力使气凝胶层恢复原状的方式，改变气凝胶层热导率实现的。本发明所述的辐射热调控组，将辐射制冷薄膜的制冷能力和气凝胶的隔热保温能力相结合，根据气凝胶在不同压缩形变下表现出的不同热导率，通过施力辐射制冷薄膜压缩气凝胶或不施力使气凝胶恢复原状的方式，改变气凝胶层的热导率，实现保温与冷却功能的主动切换。
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