The invention discloses a noise reduction structure of a blast volute. The air blower comprises an air blower assembly, the air blower assembly comprises an air blowing volute base, an air blowing volute cover plate, an air blowing motor and a speed regulation module, and the air blowing motor and the speed regulation module are installed on the air blowing volute base and sealed through the air blowing volute cover plate; the speed regulation module is arranged at the position, close to an air blower impeller, of one side of the corner of the air blowing volute base, a cooling channel notch is formed in the other side of the corner of the air blowing volute base, the cooling channel notch is communicated with an independent closed noise reduction cavity, and an air inlet channel porous plate is arranged in the noise reduction cavity. The air inlet channel perforated plate is of an integrated structure formed by connecting an air inlet channel and a perforated plate, and sound absorption felt is attached to the upper portion of the perforated plate. By improving the structure of the cooling channel of the blast volute and designing the silencing cavity, the noise influence caused by the notch of the cooling channel is weakened.

    本发明公开了一种鼓风蜗壳降噪结构。它包括鼓风机总成,所述鼓风机总成包括鼓风蜗壳底座、鼓风蜗壳盖板、鼓风电机和调速模块,所述鼓风电机和调速模块安装在鼓风蜗壳底座上,通过鼓风蜗壳盖板密封;所述调速模块布置在鼓风蜗壳底座拐角一侧靠近鼓风机叶轮处,所述鼓风蜗壳底座拐角另一侧开设冷却通道缺口,所述冷却通道缺口连通独立封闭的消音腔,所述消音腔内设有进气通道多孔板,所述进气通道多孔板为进气通道和多孔板连接而成的一体式结构,所述多孔板上方贴有吸音毛毡。本发明通过改善鼓风蜗壳冷却通道结构并设计消音腔,减弱冷却通道缺口带来的噪音影响。


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    Title :

    Noise reduction structure of air blowing volute


    Additional title:

    一种鼓风蜗壳降噪结构


    Contributors:
    ZHANG YONGBO (author) / XU JING (author) / CAI TONGXIANG (author) / HONG JIN (author) / WANG XIAOFAN (author)

    Publication date :

    2023-02-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht



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