air filter with flap

Abstract

The invention provides an air filter with a blocking piece. The air filter comprises an air filter lower shell and the blocking piece, wherein a water leakage hole and a clamping hole are formed in the air filter lower shell; the blocking piece is fixed to the bottom surface of the air filter lower shell; the blocking piece comprises a bearing plate, a cantilever and a center plate; the bearing plate is fixedly connected with the center plate by virtue of the cantilever; a clamping column is arranged on the center plate; and a set clearance is formed between the bearing plate and the bottom surface of the air filter lower shell, the water leakage hole is shielded by the bearing plate, and the clamping column is matched with the clamping hole. According to the air filter with the blocking piece, the blocking piece is fixedly clamped on the air filter lower shell, so that when the weather is fine, the water leakage hole is shielded by the blocking piece, hot air is prevented from entering the air filter, and certain sealing performance of the air filter is guaranteed so as not to influence the noise reduction performance; when the weather is rainy, rainwater enters the air filter, and after a certain amount of water is stored in the air filter, the bearing plate is automatically opened to drain water under the action of gravity of the water, so that the problem of the prior art is solved, and the noise reduction performance of the air filter is improved.

Description

Technical field [0001] The invention relates to the structure of an engine air filter, in particular to an air filter with baffles. Background technique [0002] The air filter is the most important component of the engine's air intake system, and filtering air is one of its most important properties. Since the air sucked by the engine comes from the outside world, the inlet of the intake pipe may be arranged at the forefront of the car in order to avoid the intake of excessively high temperature air, which may lead to more rainwater entering the air filter through the intake pipe in heavy rain. , Excessive rainwater can easily block the filter element and affect the air intake. In severe cases, rainwater will be directly drawn into the engine and cause damage. [0003] In order to drain the rainwater entering the air filter, the prior art usually designs a water leakage hole at the lowest position of the lower housing of the air filter, so that the rainwater entering the air filt...

AI Technical Summary

Problems solved by technology

[0004] The leak holes designed in the prior art have the following problems: 1. When there are too few leak holes, the water leakage speed is slow, which is only effective in light rainy weather. In heavy rain weather, because the water inlet speed is greater than the water leakage speed, it will still cause excessive rainwater to be stored in the air filter for a long time. Affect the normal air intake; 2. When there are too many openings, the water leakage speed is greater than the water intake speed, and the drainage problem is solved, but it will bring other problems. The overall intake air temperature affects the intake air volume of the engine, and the second is that too many openings reduce the noise reduction performance of the air filter, resulting in greater intake noise

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