Akuto Momoe, Iwase Eiji
Department of Applied Mechanics, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan.
Micromachines (Basel). 2020 Mar 4;11(3):263. doi: 10.3390/mi11030263.
Recently, some studies have addressed the use of a folded substrate to realize stretchable electronic devices including stretchable thermoelectric generators (TEGs). However, the utilization of the folded substrate as a heat radiation fin has not been achieved. Herein, we have proposed the construction of a TEG with an origami-like folded structure substrate called an "origami-fin" that can achieve a high heat radiation performance and is also highly stretchable. The origami-fin increases the stretchability of the TEG by bending a non-stretchable material into a folded shape, and it also works as a heat radiator because of its large surface area compared to that of a flat structure. We evaluated the heat radiation performance of the origami-fin and the stability of the performance when it was stretched. The results demonstrate that the origami-fin works as a heat radiator and enhances the output of the TEG, while also exhibiting a high stretchability with only a slight output reduction.
最近，一些研究探讨了使用折叠基板来实现包括可拉伸热电发电机（TEG）在内的可拉伸电子设备。然而，尚未实现将折叠基板用作散热鳍片。在此，我们提出构建一种具有类似折纸折叠结构基板的TEG，称为“折纸鳍片”，它可以实现高散热性能并且具有高度可拉伸性。折纸鳍片通过将不可拉伸材料弯曲成折叠形状来提高TEG的可拉伸性，并且由于其表面积比平面结构大，还可以作为散热器。我们评估了折纸鳍片的散热性能以及拉伸时性能的稳定性。结果表明，折纸鳍片可作为散热器并提高TEG的输出，同时在输出略有降低的情况下仍表现出高可拉伸性。
