大功率GaN基LED的新型散热技术研究

Research on a New Heat Dissipation Technology of the High-power GaN-based LED

LED因其优异性能被广泛应用于新能源汽车领域,但大功率LED常常面临着热管理问题,多颗集成的封装结构所产生的高热量对自身器件造成很大的危害,因此对于大功率LED的散热研究意义重大。文章从封装结构及封装材料角度,提出了石墨烯在大功率GaN基LED的应用方案,并通过模拟仿真分析,对比了石墨烯应用前后LED的散热情况,结果表明石墨烯的应用可以有效增强器件的散热能力,属于一种新型的散热方式。

LED is widely used in the field of new energy vehicles for its excellent performances. However, high-power LED often faces the problem of thermal management. The high heat generated by multiple integrated packaging structures causes great harm to its parts, so it is of great significance to study the heat dissipation of the high-power LED from the perspective of its structure and materials for packaging. This paper proposes to apply the graphene in high-power GaN-based LED for a before and after comparison of the heat dissipation of LED through simulation analysis. The results show that the application of graphene can effectively enhance the heat dissipation capacity of the parts, which would be a new heat dissipation mode.