Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
April 30, 2019
Patent Application Number
15063518
Date Filed
March 8, 2016
Patent Citations Received
Patent Primary Examiner
Patent abstract
A fan impeller structure of cooling fan includes a blade assembly and a hub. The blade assembly has multiple blades and an annular cover body. The annular cover body is integrally formed on the rear ends of the blades by injection molding to enclose and connect with the rear ends of the blades. Alternatively, the annular cover body is fused and integrally connected with the rear ends of the blades by means of laser welding. The blade assembly and the hub are integrally connected with each other to form the fan impeller structure.
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