The invention relates to a waterproof noise reduction type vehicle body pressure release valve. The pressure release valve comprises a valve body, a waterproof cover, a labyrinth type one-way valve and a sound-proof cover, the valve body comprises one or more openings, and each opening is provided with a valve block in a matched mode; the waterproof cover is arranged outside the valve body; the labyrinth type one-way valve is arranged at the bottom of the waterproof cover, the labyrinth type one-way valve comprises a one-way valve channel, multiple layers of water retaining pieces are arranged in the one-way valve channel, so that a transverse multi-turn-back channel is formed, and the water retaining pieces are arranged in a staggered mode and incline downwards; and the sound-proof cover is coated outside the waterproof cover. Compared with the prior art, water flow can be effectively prevented from entering the vehicle through the pressure release valve, the problem of water leakage in a wading scene can be solved at the same time, and road noise, wind noise and exhaust noise which are transmitted into the vehicle through the pressure release valve are reduced.
本发明涉及一种防水降噪型车身泄压阀,包括阀体、防水罩、迷宫式单向阀、隔音罩,其中阀体包括一个或多个开口,并在每个开口处匹配有阀片;防水罩设于阀体外侧;迷宫式单向阀设于所述防水罩的底部,迷宫式单向阀包括单向阀通道,单向阀通道中设有多层次的挡水片,以此构成横向多折返通道,每片挡水片交错式排布并向下倾斜;隔音罩包覆于防水罩外部。与现有技术相比,本发明可以有效防止水流通过泄压阀进入车内,可同时解决涉水场景漏水问题,降低通过泄压阀传递至车内的路噪、风噪、排气噪声。
Waterproof noise reduction type vehicle body pressure release valve
一种防水降噪型车身泄压阀
2021-09-17
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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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