基于复合结构热电制冷器的微流体线性冷却  

Linear Cooling of Microfluidic Based on Composite Structure Thermoelectric Cooler

作　　者：朱俊叶 孙东方 江斌 高才 周培 唐景春 叶斌 ZHU Junye;SUN Dongfang;JIANG Bin;GAO Cai;ZHOU Pei;TANG Jingchun;YE Bin(School of Automotive and Transportation Engineering,Hefei University of Technology,Hefei 230009,China;Zhejiang Chuangli Automotive Air Conditioning Co.,Ltd.,Longquan 323700,China)

机构地区：[1]合肥工业大学汽车与交通工程学院,合肥230009 [2]浙江创立汽车空调有限公司,龙泉323700

出　　处：《工程热物理学报》2025年第2期394-401,共8页Journal of Engineering Thermophysics

基　　金：国家自然科学基金项目(No.52006051,No.52376052);浙江省博士后科研择优资助项目(No.ZJ2023168)。

摘　　要：连续微流体的线性冷却可以提供精确降温速度,是细胞定向冷冻、冰核等研究的关键保障。本文介绍了一种具有线性温度梯度的复合结构热电制冷器的构建方法。所构建的热电制冷器不仅能够实现连续微流控系统的线性冷却,而且还具有更低的功耗。此外,复合结构热电制冷器的温度梯度在不同工作电流下都表现出良好的线性度,因此可以通过控制电流来调节其连续微流体的冷却速度。在电流和流速分别为3 A和10 mm/s时,复合结构热电制冷器可使微流体以10.5 K/s的速度从298.7 K线性冷却到256.6 K。Linear cooling of continuous microfluidics can provide precise cooling rate,which is the key guarantee for the research of directional freezing of cells,and ice nucleation.This paper presents the construction method of a composite structure thermoelectric cooler with a linear temperature gradient.The composite structure thermoelectric cooler not only achieves linear cooling of continuous microfluidic systems but also consumes less power.Additionally,the temperature gradients maintains good linearity under different operating currents of thermoelectric cooler,and the cooling rate of the microfluidic system can be regulated by adjusting the current of the thermoelectric cooler.At a current and flow rate of 3 A and 10 mm/s,respectively,the composite-structured thermoelectric cooler can linearly cool the microfluid from 298.7 K to 256.6 K at 10.5 K/s.The microfluidic cooling rate can be regulated by the current of the thermoelectric cooler.

关 键 词：热电制冷器 线性冷却 复合结构 微流体 

分 类 号：TB69[一般工业技术—制冷工程]