Refrigerator

Abstract

There is disclosed a refrigerator including an inner case that defines an exterior appearance of a storage space, with a communication hole formed therein, an outer case spaced apart a predetermined distance from the inner case, with a communication hole formed at a position corresponding to the communication hole of the inner case, a vacuum space provided between the inner case and the outer case, with being maintained vacuum, to insulate the inner case from the outer case, and a connection pipe passing through the vacuum space, to connect the communication hole of the inner case and the communication hole of the outer case with each other.

Description

technical field [0001] Embodiments of the present invention relate to a refrigerator, and more particularly, to a refrigerator including a vacuum space formed between an outer case and an inner case to improve a heat insulation function thereof. Background technique [0002] A refrigerator is a home appliance that uses a refrigerant cycle to preserve food stored in a storage chamber at a low temperature or a temperature below zero. [0003] A conventional configuration of such a refrigerator is provided with a case in which a storage space is defined to store food, and a door rotatably or slidably coupled to the case to open and close the storage space. [0004] The case includes: an inner case in which a storage space is formed; and an outer case configured to accommodate the inner case. The heat insulating material is arranged between the inner shell and the outer shell. [0005] This heat insulating material suppresses the influence of the external temperature on the in...

AI Technical Summary

Problems solved by technology

If plastic pipes are used, the disadvantage is that it is difficult to keep airtight in the connection area between the pipe and the vacuum space, and this connection area cannot withstand the vacuum pressure of the vacuum space

[0016] In addition, if the pipe is formed of a metal pipe that can be welded to the inner and outer casings formed of metal plates, heat transfer may occur via the pipe, and the insulation performance of the refrigerator may thus be deteriorated.

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