在对生产环境洁净度要求高的领域,需要性能良好,适应性强的空气净化装置。风机过滤单元作为一种空气净化装置,具有良好发展前景。本文针对风机过滤单元在中国的专利申请进行分析,从申请量年度变化、专利申请类型、申请国家分布、申请人类型构成、重要申请人分析以及技术改进分析等方面进行剖析,旨在摸清该领域现有技术的发展现状,并对今后该领域发展方向与研究重点提出建议与意见。 In areas requiring high cleanliness of the production environment, there is a need for air purifiers that are good in performance and adaptable. Fan filter unit as an air purification device, has good prospects for development. This paper analyzes the patent application of fan filter unit in China, and analyzes the annual change of application, the type of patent application, the country of application, the type of applicant, the analysis of important applicants and the analysis of technical improvement so as to find out Field of existing technology development status, and future development direction and research priorities in this area put forward suggestions and opinions.