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NOVEL VOLUTE TONGUE STRUCTURE, FAN VOLUTE, AND FAN
NOVEL VOLUTE TONGUE STRUCTURE, FAN VOLUTE, AND FAN
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机译:新型蜗壳舌结构,风扇蜗壳和风扇
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摘要
A novel volute tongue structure, a fan volute, and a fan, relating to the technical field of centrifugal fans, and solving the technical problem that existing volute tongue structures cause centrifugal fans to produce large noise during operation. The device comprises a wave unit (1), wherein a line on the wave unit (1) along a direction parallel to a volute air return axis are non-linear, and there is one wave unit (1); or, there are at least two wave units (1) which are distributed in a direction parallel to the volute air return axis. The novel volute tongue structure reduces noise produced by a centrifugal fan.
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