The invention belongs to the technical field of noise reduction air conditioner pipelines in automobile air conditioner systems, and particularly relates to a PET composite folding plate type periodic structure noise reduction air duct. Comprising a PET shell, a plastic framework, a base body, a silicon rubber block and a lead block, the lead block and the silicon rubber block are fused together through a vulcanization process to form a scatterer, and then the scatterer is embedded into the base body through a secondary vulcanization process to form a folded plate type periodic acoustic crystal structure. The folded plate type periodic acoustic crystal structure is embedded into a plastic framework through an injection molding process, and the plastic framework is welded in a PET shell; the pipeline has the silencing characteristic of an impedance composite silencer and is high in pertinence; the transmission loss of the full frequency band of the pipeline is greatly improved compared with that of a traditional PET pipeline.
本发明属于汽车空调系统中降噪空调管路技术领域,具体涉及一种PET复合折叠板型周期结构降噪风道;包括PET壳体、塑料骨架、基体、硅橡胶块、铅块,其中铅块和硅橡胶块通过硫化工艺融合在一起形成散射体,再通过二次硫化工艺将散射体嵌入到基体中形成折叠板型周期声学晶体结构,再通过注塑工艺将折叠板型周期声学晶体结构嵌入到塑料骨架中,塑料骨架焊接在PET壳体内;本发明管路具备阻抗复合消声器的消声特性,并且针对性较强;该管路全频段相对于传统PET管路传递损失都有大幅度提升。
PET composite folded plate type periodic structure noise reduction air duct
一种PET复合折叠板型周期结构降噪风道
2023-09-15
Patent
Electronic Resource
Chinese
IPC: | 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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