A fan structure includes a frame body and a fan impeller. The frame body has a base seat and an annular wall. A bearing cup upward extends from a center of the base seat. At least one groove is annularly formed on inner wall face of the annular wall. The fan impeller is pivotally disposed in the bearing cup and has a hub and multiple blades outward extending from the hub. Each blade has an end edge. At least one protrusion section outward protrudes from the end edge into the groove. According to the design of the fan structure, the protrusion section can destroy the production of the vortex of the blade of the conventional fan so as to greatly minify the strength of the vortex. Therefore, the structure of the sound field of the vortex is changed so that the noise of the fan structure is lowered.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Fan structure


    Beteiligte:
    CHANG BOR-HAW (Autor:in) / CHEN YU-TZU (Autor:in) / WANG CHUNG-SHU (Autor:in)

    Erscheinungsdatum :

    2020-10-20


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES



    STRUCTURE MOUNTING STRUCTURE

    NEGISHI TOSHIMITSU | Europäisches Patentamt | 2024

    Freier Zugriff

    POSITIONING STRUCTURE POSITIONING STRUCTURE

    SAWAI JUNJI | Europäisches Patentamt | 2021

    Freier Zugriff

    BATTERY STRUCTURE FIXING STRUCTURE

    TAKAMOTO DAISUKE | Europäisches Patentamt | 2020

    Freier Zugriff

    Frame structure, and structure

    SHIMODAIRA MARIO | Europäisches Patentamt | 2019

    Freier Zugriff

    STRUCTURE MANUFACTURING DEVICE, STRUCTURE MANUFACTURING METHOD, AND STRUCTURE

    KAMIHARA NOBUYUKI / ABE TOSHIO | Europäisches Patentamt | 2016

    Freier Zugriff