基于生命周期和IPC分类的国内外新能源汽车充电桩技术研究[1]

本文基于充电桩技术专利数据，利用Logistic模型进行充电桩技术生命周期预测，运用IPC分类进行重点技术分析，结果表明：国内充电桩技术于2015年进入成长期，于2020年进入成熟期，预计将于2025年进入衰退期；而国外充电桩技术于2007年进入成长期，于2017年进入成熟期，预计于2030年进入衰退期。另外，国内外充电桩技术企业都比较重视在B60L和H02J两个技术领域的布局，与国外相比，国内充电桩技术企业在自然能源转换、无线供电以及安全用电装置方面的专利布局较弱。

Research on Charging Point Technology of New Energy Vehicles at Domestic and Abroad Based on Life Cycle and IPC Classification

Based on the patent data of the charging pile technology, this paper uses the Logistic model to predict the life cycle of the charging pile technology, and uses IPC classification to carry out key technical analysis. The results show that: the domestic charging pile technology entered the growth period in 2015 and entered the maturity period in 2020. It will enter the recession period in 2025; and the foreign charging pile technology entered the growth period in 2007, entered the maturity period in 2017, and is expected to enter the recession period in 2030. In addition, domestic and foreign charging pile technology companies pay more attention to the layout in the two technical fields of B60L and H02J. Compared with foreign countries, domestic companies have weak patent layouts in natural energy conversion, wireless power supply, and safe power consumption devices.