Air leakage prevention air door structure

Abstract

The invention discloses an air leakage prevention air door structure which comprises a shell of which the middle part is provided with an air outlet; an air door plate which is arranged in the air outlet, wherein the end wall of the air door plate is rotationally connected with the side wall of the shell through a rotating shaft, and a gap is reserved between the end wall of the air door plate and the side wall of the shell at the joint of the air door plate and the side wall of the shell; and a sealing ring which is made of an elastic material, wherein the sealing ring wraps the gap in a sealed mode so that the gap forms a sealed space. Compared with the prior art, gap air leakage can be well prevented, and the situation that the air door plate is clamped in the rotating process is avoided.

Description

technical field [0001] The invention relates to an automobile air-conditioning system, in particular to an anti-leakage damper structure. Background technique [0002] Automobile air conditioners are mainly used to adjust and control the temperature, humidity, air cleanliness and air flow in the car compartment to the best state, provide passengers with a comfortable riding environment, reduce travel fatigue, and play an important role in ensuring safe driving. [0003] The damper of the automobile air conditioner is used to adjust the air volume of the air outlet of the air conditioner. The damper generally passes through the rotating shaft and is rotatably arranged at the air outlet. Theoretically speaking, the damper should be able to completely close the air outlet, but in the existing damper structure, a gap needs to be reserved between the end wall of the damper and the inner wall of the housing with the air outlet at the joint of its rotating shaft. In order to preve...

AI Technical Summary

Problems solved by technology

Theoretically speaking, the damper should be able to completely close the air outlet, but in the existing damper structure, a gap needs to be reserved between the end wall of the damper and the inner wall of the housing with the air outlet at the joint of its rotating shaft. In order to prevent the rigid contact between the end wall of the damper and the inner wall of the housing during the rotation of the damper, which will cause the rotation to be stuck

However, the setting of the gap will inevitably lead to air leakage, which makes it difficult to take into account both air leakage and anti-seizing in the design and implementation of the damper structure.

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