Sealing protection system and method for closed device

Abstract

The invention discloses a sealing protection system for a closed device. The system comprises a breathing hole formed in a shell of the closed device and a breathing bag made from airtight materials. The interior of the closed device and the outside are communicated through the breathing hole. The breathing bag further comprises a ventilation hole and a breathing bag body. The ventilation hole is connected with the breathing hole in a sealing manner. According to the system, due to the fact that the breathing bag is arranged in the closed device, the balance of pressure inside and outside the closed device is kept through exhaling and inhaling of the breathing bag. The sealing performance of the closed device is effectively guaranteed, and therefore the service life of elements in the closed device is prolonged. The invention further discloses a sealing protection method for the closed device.

Description

technical field [0001] The invention relates to the field of sealing, in particular to a sealing protection system and method for a closed device. Background technique [0002] At present, most of the devices containing precision electronic components are airtight devices, so as to prevent the precision electronic components in the device from becoming invalid due to interference from external factors such as moisture or dust in the air. In order to ensure that the device is well sealed, various sealing treatments are required, such as applying sealant at the seams or at the inlet and outlet. However, after the device is energized and working, or due to the heating of the components themselves, or frictional heat generated during operation, the closed space will generate a lot of heat, which will cause the gas inside the device to expand, resulting in an air pressure difference between the closed space and the outside world, which is easy to damage its tightness. When the ...

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Problems solved by technology

However, after the device is energized and working, or due to the heating of the components themselves, or frictional heat generated during operation, the closed space will generate a lot of heat, which will cause the gas inside the device to expand, resulting in an air pressure difference between the closed space and the outside world, which is easy to damage its tightness

When the seal of the device is broken, it will generate heat during operation and discharge the internal gas. When it cools down, it will inhale impurities such as moisture in the atmosphere to form a breathing process, which will affect the service life of internal components in the long run.

In order to overcome such defects, the tympanum type rubber ring is installed on the shell of the closure device on the market to solve the above-mentioned problem of thermal expansion and contraction, but the tympanum type has disadvantages. On the one hand, the application range of the tympanum type is limited. On the other hand, when the sealing device heats up, the expanded volume needs a certain pressure to push the eardrum rubber outward, and there is still a pressure difference between the inside of the sealing device and the outside world, and this pressure difference will still be destructive to the sealing part, such as the sealing Glue degumming, tympanic rubber falling off, etc., the use effect is very unsatisfactory

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