Study on aluminum nitride/addition-cure liquid silicone rubber composite for high-voltage power encapsulation.

In view of the development direction of high power and miniaturization of high-voltage power supply, higher requirements are put forward for the breakdown strength, thermal conductivity of packaging materials for its high voltage output module. An electric-insulated heat-conducted material with alum...

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Autores principales:	Zhenzhen Ou, Feng Gao, Lingjian Zhu, Huaijun Zhao, Zihan Xun
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/33f93776541f4532995beddca784b421
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id	oai:doaj.org-article:33f93776541f4532995beddca784b421
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spelling	oai:doaj.org-article:33f93776541f4532995beddca784b4212021-12-02T20:11:09ZStudy on aluminum nitride/addition-cure liquid silicone rubber composite for high-voltage power encapsulation.1932-620310.1371/journal.pone.0252619https://doaj.org/article/33f93776541f4532995beddca784b4212021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0252619https://doaj.org/toc/1932-6203In view of the development direction of high power and miniaturization of high-voltage power supply, higher requirements are put forward for the breakdown strength, thermal conductivity of packaging materials for its high voltage output module. An electric-insulated heat-conducted material with aluminium nitride as heat conducting filler and addition-cure liquid silicone rubber (ALSR) as matrix for high voltage power encapsulation has been studied. Initially, the thermal conductivity and breakdown strength of composites were explored at different filler fractions. With increase of filler fraction, the thermal conductivity increased and the breakdown strength decreased. Then, with the packaging module volume as the optimization objective and the working temperature as the optimization condition, the temperature distribution of high voltage power supply was studied by using the finite element method, and 40wt% filling fraction was selected as the optimal ratio. Finally, the actual packaging experiment of the high voltage module is carried out. and the variation of the output voltage and temperature with the working time is obtained. According to the experimental results, the output voltage of the high voltage module is basically stable, and the maximum surface temperature is 40.4°C. The practicability of the electric-insulated heat-conducted material has been proved.Zhenzhen OuFeng GaoLingjian ZhuHuaijun ZhaoZihan XunPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 6, p e0252619 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhenzhen Ou Feng Gao Lingjian Zhu Huaijun Zhao Zihan Xun Study on aluminum nitride/addition-cure liquid silicone rubber composite for high-voltage power encapsulation.
description	In view of the development direction of high power and miniaturization of high-voltage power supply, higher requirements are put forward for the breakdown strength, thermal conductivity of packaging materials for its high voltage output module. An electric-insulated heat-conducted material with aluminium nitride as heat conducting filler and addition-cure liquid silicone rubber (ALSR) as matrix for high voltage power encapsulation has been studied. Initially, the thermal conductivity and breakdown strength of composites were explored at different filler fractions. With increase of filler fraction, the thermal conductivity increased and the breakdown strength decreased. Then, with the packaging module volume as the optimization objective and the working temperature as the optimization condition, the temperature distribution of high voltage power supply was studied by using the finite element method, and 40wt% filling fraction was selected as the optimal ratio. Finally, the actual packaging experiment of the high voltage module is carried out. and the variation of the output voltage and temperature with the working time is obtained. According to the experimental results, the output voltage of the high voltage module is basically stable, and the maximum surface temperature is 40.4°C. The practicability of the electric-insulated heat-conducted material has been proved.
format	article
author	Zhenzhen Ou Feng Gao Lingjian Zhu Huaijun Zhao Zihan Xun
author_facet	Zhenzhen Ou Feng Gao Lingjian Zhu Huaijun Zhao Zihan Xun
author_sort	Zhenzhen Ou
title	Study on aluminum nitride/addition-cure liquid silicone rubber composite for high-voltage power encapsulation.
title_short	Study on aluminum nitride/addition-cure liquid silicone rubber composite for high-voltage power encapsulation.
title_full	Study on aluminum nitride/addition-cure liquid silicone rubber composite for high-voltage power encapsulation.
title_fullStr	Study on aluminum nitride/addition-cure liquid silicone rubber composite for high-voltage power encapsulation.
title_full_unstemmed	Study on aluminum nitride/addition-cure liquid silicone rubber composite for high-voltage power encapsulation.
title_sort	study on aluminum nitride/addition-cure liquid silicone rubber composite for high-voltage power encapsulation.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/33f93776541f4532995beddca784b421
work_keys_str_mv	AT zhenzhenou studyonaluminumnitrideadditioncureliquidsiliconerubbercompositeforhighvoltagepowerencapsulation AT fenggao studyonaluminumnitrideadditioncureliquidsiliconerubbercompositeforhighvoltagepowerencapsulation AT lingjianzhu studyonaluminumnitrideadditioncureliquidsiliconerubbercompositeforhighvoltagepowerencapsulation AT huaijunzhao studyonaluminumnitrideadditioncureliquidsiliconerubbercompositeforhighvoltagepowerencapsulation AT zihanxun studyonaluminumnitrideadditioncureliquidsiliconerubbercompositeforhighvoltagepowerencapsulation
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Study on aluminum nitride/addition-cure liquid silicone rubber composite for high-voltage power encapsulation.

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