有高开关比率的可靠原形热开关
Bowen Tan1,2, Jun Lyu1, Fuwei Yang3
1School of Advanced Manufacturing and Robotics, Peking University, Beijing, China.
Nature communications
|February 25, 2026
概括
研究人员为人工智能和机器人开发了一种新的原创灵感热开关. 这种被动设备可以快速切换热状态,在没有外部能量的情况下实现高比率,从而实现先进的热管理.
科学领域:
- 材料科学与工程 材料科学与工程
- 机械工程 机械工程
- 机器人和人工智能机器人与人工智能
背景情况:
- 有效的热管理对于人工智能和机器人的动力电子非常重要.
- 当前的热开关在实现高开关比率和动态可逆性方面面临着挑战.
- 需要被动的,节能的热管理解决方案.
研究的目的:
- 为了介绍一个新的可双相可见的,灵感来自于Origami的热开关.
- 为了证明在没有外部能量输入的情况下,在不同的导热状态之间快速切换.
- 与现有技术相比,实现显著更高的热切换比率.
主要方法:
- 使用精确的切割折叠技术,从薄膜制造出一个可视化的,灵感来自于Origami的热开关.
- 利用通过形状记忆合金和弹性弹驱动的快穿不稳定性,用于热切换.
- 通过几何变化调整能源格局,以控制触发温度和开关比.
主要成果:
- 实现了前所未有的热切换比率:13,984在真空中和1360在环境空气中.
- 在没有外部能量或感官输入的情况下,在不同的导电状态之间展示了快速,可逆的热切换.
- 在多种场景中验证了稳定和可重复的热调节.
结论:
- 开发的灵感来自于Origami的热开关为被动,可编程的热管理提供了显著的进步.
- 这项技术为人工智能和机器人的动力电子提供了一条通往高效的热调节的途径.
- 开关的调节性质允许在各种应用中定制热管理解决方案.
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