1results about How to "Solve stress concentration" patented technology

The application relates to a fan technical field, and provides a fan impeller structure, the impeller structure comprises a central shaft and a blade, further comprises a base plate coaxially arranged with the central shaft, the blade is fixedly connected with the base plate, and the outer end of the blade is bent into a bending part located on the inner side of the base plate; the impeller structure of the application embodiment fixes the blade through the base plate, and the bending part is located on the inner side of the base plate to improve the stability; compared with the prior art, the vibration of the outer end of the blade can be reduced, the stress concentration effect of the blade root can be reduced, and the service life of the blade can be prolonged.