The invention discloses an adjustable ventilation opening with noise elimination, noise reduction and heat insulation functions, which can reduce noise in a pipeline while adjusting the wind direction, and has better heat insulation capability. The ventilation opening is divided into a ventilation grille assembly and a silencing cover assembly, the ventilation grille assembly is of a common louver grille structure, the silencing cover assembly is composed of a silencing cover and a porous silencing material, the silencing cover is of a double-layer wall face structure, a flow channel is formed in the inner layer wall face, the silencing cover is machined to be of a porous structure, and a closed silencing cavity is formed between the inner layer wall face and the outer layer wall face. The porous silencing material is arranged in the cavity, when airflow with noise flows through the internal flow channel, air flows out of the grille along the flow channel, the noise enters the porous silencing material through the holes in the inner layer wall face, and sound energy is converted into heat energy through friction to be dissipated when the noise is spread in the porous silencing material. The ventilation opening is of a double-layer structure, and the low-heat-conductivity-coefficient porous silencing material is matched, so that the ventilation opening has the good heat insulation capacity at the same time.

    本发明公开了一种具备消声降噪及隔热功能的可调节通风口,可调节风向的同时,对管路内的噪声进行降低,并具备较好隔热能力。通风口分为通风格栅组件与消声罩组件,通风格栅组件为常用的百叶窗格栅结构,消声罩组件由消声罩与多孔消声材料组成,其中消声罩为双层壁面结构,内层壁面形成流道,并加工为多孔结构,内层壁面与外层壁面间形成封闭的消声腔,在腔内装入多孔消声材料,带有噪声的气流流经内部流道时,空气沿流道流出格栅,噪声则通过内层壁面上的孔进入多孔消声材料,在其中传播时通过摩擦将声能转化为热能而消散。本发明为双层结构,配合低导热系数的多孔消声材料使得通风口同时具备较好的隔热能力。


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    Title :

    Adjustable ventilation opening with noise elimination, noise reduction and heat insulation functions


    Additional title:

    一种具备消声降噪及隔热功能的可调节通风口


    Contributors:
    CONG NING (author) / ZHAO MEIQI (author) / MENG YUAN (author)

    Publication date :

    2025-01-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / 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 / F24F Klimatisierung , AIR-CONDITIONING




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