storage device

Abstract

This application relates to a storage device. It includes: a storage box with a storage cavity having an open opening connecting to the outside, the storage cavity being used to store a gas that has been converted into a liquid state; a bottom cover welded to the storage box to seal the open opening, and the bottom cover having a vent hole connecting to the outside and the storage cavity; and a sealing plug welded to the bottom cover, the sealing plug cooperating with the vent hole to seal the vent hole. This eliminates microcracks caused by stress concentration, causing molecular chain interfusion at the welded locations of the bottom cover and the storage box, and the bottom cover and the sealing plug, thereby forming a homogeneous sealing layer. This sealing layer effectively seals the gaps between the bottom cover and the storage box, and between the bottom cover and the sealing plug, thus eliminating the existence of leakage channels and effectively preventing liquid in the storage cavity from leaking through these channels, thereby improving the reliability of the storage device.

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