The invention relates to the technical field of vehicle air duct noise reduction, in particular to a noise reduction pipeline, a vehicle air conditioner noise reduction air duct and a vehicle. The noise reduction pipeline comprises a first noise reduction pipe section, the first noise reduction pipe section comprises a plurality of noise reduction units, each noise reduction unit is provided with a Helmholtz resonant cavity, and the Helmholtz resonant cavities communicate with the circulation space of the first noise reduction pipe section. By designing the noise reduction units with the Helmholtz resonant cavities, the noise reduction frequency of each noise reduction unit can be designed within a certain range, so that the noise reduction frequency band of the first noise reduction pipe section can be adjusted within a certain range, and broadband noise reduction is achieved.
本申请涉及车辆风道降噪技术领域,尤其涉及一种降噪管道、车用空调降噪风道及车辆。降噪管道包括第一降噪管段,第一降噪管段包括多个降噪单元,降噪单元设有亥姆霍兹共振腔,亥姆霍兹共振腔与第一降噪管段的流通空间连通。本申请通过设计具有亥姆霍兹共振腔的降噪单元,每个降噪单元的降噪频率能够在一定范围内设计,进而使得第一降噪管段的降噪频段能够在一定范围的范围内调整,实现宽频降噪。
Noise reduction pipeline, vehicle air conditioner noise reduction air duct and vehicle
降噪管道、车用空调降噪风道及车辆
13.05.2025
Patent
Elektronische Ressource
Chinesisch
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 |
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