Vacuum pump waterproof device and automobile

Abstract

The invention discloses a vacuum pump waterproof device. The vacuum pump waterproof device comprises a silencer, an exhaust front pipe connected with a vacuum pump and the lower end of the silencer and an exhaust back pipe connected with the upper end of the silencer, wherein the exhaust front pipe is a U-shaped pipe, and the height of an exhaust port of the exhaust back pipe is greater than thatof the vacuum pump. According to the vacuum pump waterproof device, a S-shaped pipeline, the silencer and a fixing sleeve are utilized, so that the noise of the exhaust port during working of the vacuum pump is effectively reduced while the dustproof and waterproof effects are achieved, and the waterproof and noise reduction effects are improved; and meanwhile, the vibration transmission of the whole pipeline is also considered, and the requirements of drivers on cross-country wading performance and passenger comfort are met. The invention also discloses an automobile.

Description

technical field [0001] The invention belongs to the technical field of auto parts, in particular, the invention relates to a vacuum pump waterproof device and an automobile. Background technique [0002] With the increasingly stringent national emission and fuel consumption regulations, traditional fuel vehicles, engine supercharging and miniaturization have become a trend; new energy vehicles, their hybrid and pure electric vehicles are also vigorously developing; the above models, due to the brake vacuum booster If the vacuum source is insufficient, an electronic vacuum pump is required to provide an auxiliary vacuum source. Along with consumers' continuous requirements for off-road performance and comfort in the car, new requirements are also put forward for the wading depth and noise of the electronic vacuum pump. [0003] In the current electronic vacuum pump, the exhaust outlet is generally located in the middle of the pump body. In order to prevent water and dust, so...

AI Technical Summary

Problems solved by technology

Although the entry of dust at the air outlet has been reduced to a certain extent, it has not improved the wading depth, nor has it achieved effective waterproofing

[0004] Another solution is to increase the U-shaped pipeline at the exhaust port of the electronic vacuum pump. For example, the patent document with the publication number CN207080367U discloses a waterproof structure of the electronic vacuum pump and an automobile. Although the U-shaped pipe increases the wading height, the exhaust port Noise reduction method is not adopted for the noise, and the pipeline fixing method is not reflected, which cannot meet the requirements of wading depth and passenger comfort in off-road at the same time

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