Abstract
Thermal conductive gasket is a kind of widely used thermal interface material, the measurement of its thermal resistance has been neglected in actual use. In this paper, according to Fourier’s one-dimensional steady-state thermal conductivity law, an improved thermal resistance test scheme based on ASTM D5470 standard is proposed, and a thermal resistance test system of thermal conductive gasket is designed. The test system is mainly composed of heating meter bar, cooling meter bar, temperature acquisition system and pressure applying mechanism. The system can simulate the actual compression state of thermal conductive gasket according to the gap between the heat source and the radiator. The temperature test points are reasonably distributed in the test system, and the heat flow distribution state is analyzed by means of simulation to reduce the error of heat flow calculation. The test system was used to test the practical thermal resistance of 7 kinds of thermal conductive gaskets, and the relative deviation of thermal resistance of the same group of test samples was less than 1%. The test system has the advantages of simple structure, convenient construction and high testing precision.
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Li, Yx., Hu, Jy. (2020). The Design of Thermal Resistance Testing System for Thermal Interface Material. In: Duan , B., Umeda, K., Hwang, W. (eds) Proceedings of the Seventh Asia International Symposium on Mechatronics. Lecture Notes in Electrical Engineering, vol 589. Springer, Singapore. https://doi.org/10.1007/978-981-32-9441-7_43
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DOI: https://doi.org/10.1007/978-981-32-9441-7_43
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Publisher Name: Springer, Singapore
Print ISBN: 978-981-32-9440-0
Online ISBN: 978-981-32-9441-7
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