The fan comprises a fan body and two airflow control assemblies, the two airflow control assemblies are arranged at the air inlet end and the air outlet end of the fan body respectively, and each airflow control assembly comprises a plurality of airflow channels arranged in a bent mode; one airflow control assembly extends into the compartment and enables the fan body to communicate with the interior of the compartment through the corresponding airflow channel; and the other air flow control assembly extends to the outside of the carriage and enables the fan main body to be communicated with the outside of the carriage through the corresponding air flow channel. And air entering the fan main body and exhausted from the fan main body flows through the airflow channel. The airflow channel is arranged in a bent mode, so that the flowing distance of air in the airflow channel is prolonged, and correspondingly, the propagation distance of noise generated by the fan body to the interior of the carriage is increased. When sound generated when the fan body works is conducted in the airflow channel, a large amount of energy can be consumed, then the noise intensity in the compartment is reduced, and the mute performance of the compartment is improved.
本发明涉及一种应用于车厢换气的风扇,包括风扇主体和两个气流控制组件,两个气流控制组件分别设置于风扇主体的入风端和出风端,气流控制组件包括多个弯曲设置的气流通道;其中一个气流控制组件延伸至车厢内部,并使风扇主体通过对应的气流通道与车厢内部连通;其中另一个气流控制组件延伸至车厢外部,并使风扇主体通过对应的气流通道与车厢外部连通。进入风扇主体和从风扇主体排出的空气均流经气流通道。气流通道弯曲设置,有利于延长空气在气流通道内的流动距离,对应也增加了风扇主体产生的噪音向车厢内传播的距离。风扇主体工作时产生的声音在气流通道中传导时会消耗大量能量,进而降低车厢内的噪音强度,提升车厢的静音性能。
Fan applied to compartment ventilation
应用于车厢换气的风扇
2024-06-18
Patent
Electronic Resource
Chinese
IPC: | F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / 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 |
Overhead vehicle passenger compartment ventilation equipment
European Patent Office | 2022
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