The invention relates to the technical field of automobile parts, in particular to a back door ventilation structure and an automobile body, and the back door ventilation structure comprises a ventilation assembly and a cover body; the ventilation assembly is arranged on the back door, and a ventilation channel is arranged in the ventilation assembly; two blade layers are sequentially arranged in the ventilation channel; when the pressures on the inner sides of the two blade layers respectively reach a preset pressure value, the two blade layers are opened; a passing cavity is formed in the cover body, and an opening of the passing cavity faces the ventilation channel and covers the outer side of the back door; a passing opening is formed in the bottom of the cover body, and the ventilation channel, the passing cavity and the passing opening are sequentially communicated. By means of the technical scheme, normal ventilation can be prevented from being affected, meanwhile, the probability that sealing of the ventilation channel is abnormally relieved in the driving process is reduced, the situation that gaps of any blade layer directly become a water vapor or wind or dust entering path is avoided, and the waterproof, air-proof and dust-proof effects are improved.
本发明涉及汽车部件技术领域,具体提出一种后背门通风结构和车体,其中,后背门通风结构,包括:通风组件和罩体;通风组件设于后背门上,其内设有通风通道;通风通道内依次设有两个叶片层;当两个叶片层的内侧的压力分别达到预设压力值时,两个叶片层张开;罩体内设有通过腔,通过腔的开口朝向通风通道罩设于后背门的外侧上;罩体的底部设有通过口,通风通道、通过腔和通过口依次连通。能够在避免影响正常通风换气的同时,降低行驶过程中通风通道的密封非正常解除的几率,并避免任一叶片层的间隙直接成为水汽、风或灰尘的进入路径,提高了防水、防气和防尘的效果。
Back door ventilation structure and vehicle body
一种后背门通风结构和车体
2025-04-15
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 |