热开关装置及在电卡制冷原型器件中的研究进展  

Research Progresses of Thermal Switch Device and Its Applications in Prototype Devices of Electrocaloric Refrigeration

作　　者：赖骏颖 徐智毅 牛翔 何厚铸 梁威 关旭辉 鲁圣国[1] Lai Junying;Xu Zhiyi;Niu Xiang;He Houzhu;Liang Wei;Guan Xuhui;Lu Shengguo(Guangdong Provincial Research Center on Smart Materials and Energy Conversion Devices,School of Materials and Energy,Guangdong University of Technology,Guangzhou,510006,China)

机构地区：[1]广东省智能材料和能量转化器件工程技术研究中心、广东工业大学材料与能源学院,广州510006

出　　处：《制冷学报》2024年第4期68-84,共17页Journal of Refrigeration

基　　金：国家自然科学基金(51872053,52272105);国家自然科学基金-广东省联合基金(U1501246)资助项目;广东省自然科学基金重大基础研究培育项目(2015A030308004);广东省教育厅重大基础研究培育项目(2014GKXM039);东莞市核心技术攻关前沿项目(2019622101006);先进能源科学与技术广东省实验室佛山分中心佛山仙湖实验室开放基金重点项目(XHT2020-011)资助

摘　　要：电卡效应制冷是一种新兴的绿色固态制冷技术,由于具有成本低、COP高及可微型化等优点被认为是取代传统压缩机制冷的选择之一。现今阻碍电卡制冷器件应用的主要问题是电卡材料单片温变不足,在器件设计中采用回热式或串联式结构可将材料温变放大至工程应用量级。介绍了串联式电卡制冷器件中热开关装置的概念、性能指标及目前国内外相关研究成果并结合电卡效应原理分析了不同种类热开关在电卡制冷器件中的适配性。介绍了回热式和串联式电卡制冷原型器件的研究成果,基于串联式电卡制冷器件进行模拟计算,分析热开关装置的性能对制冷器件性能的影响。串联式结构理论上更适配于电卡制冷器件,利用电场驱动流体介质的热开关装置响应速度快、断开热阻大的特点可以帮助串联式电卡制冷器件突破现今技术瓶颈,从而发挥电卡制冷技术在各制冷系统领域的技术潜力。The electrocaloric effect is a novel solid-state refrigeration technology that is considered an option to replace traditional vapor compression refrigeration owing to its advantages,such as low cost,high coefficient of performance(COP),and miniaturization.Currently,the main limitation that hinders the application of electrocaloric refrigeration devices is the insufficient temperature change in materials exhibiting the single-chip electrocaloric effect.In device design,the use of a regenerative or series structure can increase the system temperature span to the level of engineering applications.This study introduces the concept,performance indicators,and current research achievements of thermal switch devices in a series of electrocaloric refrigeration devices.Using the principle of the electrocaloric effect,the adaptability of different types of thermal switches in electrocaloric refrigeration devices was analyzed,and the research results of regenerative and a series of electrocaloric refrigeration prototype devices were presented.Simulations and analyses of the impact of thermal switching devices on the performance of refrigeration devices were conducted using a series of electrocaloric refrigerators.We believe that the series structure is theoretically suitable for electrocaloric refrigeration devices.The use of the fast response speed and high thermal resistance of thermal switch devices driven by an electric field to drive the fluid medium can assist a series of electrocaloric refrigeration devices to address the current technological limitation and thus unleash the technical potential of electrocaloric refrigeration technology in various refrigeration systems.

关 键 词：热开关 电卡效应 固态制冷技术 热管理技术 

分 类 号：TB619.2[一般工业技术—制冷工程] TB64