鼓风机制造技术

本发明专利技术涉及鼓风机。用于在建筑工地等吹飞并收集粉尘等辅助作业的鼓风机，由于利用风扇吹风的声音大，因此要求减低其噪声。本发明专利技术中，不使用现有的消音器和特别的吸音材料，而能够利用更简单的结构且低成本地减低送风音。与送风口(11)的送风路(16)并列设置消音室(21)，使该消音室(21)经消音孔(22)与送风路(16)连通。通过送风的压力变化而在送风路(16)和消音室(21)之间产生空气的出入，将声音能量转化为摩擦热能，从而实现噪声的减低。

Blower

The invention relates to a blower. A blower used for auxiliary operations such as blowing and collecting dust at construction sites, etc., requiring noise from the blower so as to reduce its noise. Without the use of an existing muffler and a special sound-absorbing material, the present invention can utilize a simpler structure and reduce air supply sound at low local level. And the air outlet (11) of the air path (16) are arranged in anechoic chamber (21), the anechoic chamber (21) via arc hole (22) and air path (16) connected. The air inlet and outlet of the air supply path (16) and the silencing chamber (21) are generated by the pressure change of the air supply, and the sound energy is converted into frictional heat energy, so as to reduce noise.

【技术实现步骤摘要】

【技术保护点】
１．一种鼓风机，其特征在于，在内装有旋转的风扇的主体壳体上具备吸气口和送风口，其中在上述送风口，与送风路并列地设置消音室，通过消音孔将该消音室和上述送风路之间连通。

【技术特征摘要】
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【专利技术属性】
技术研发人员：高野秀明，
申请(专利权)人：株式会社牧田，
类型：发明
国别省市：JP