Vacuum adiabatic body and refrigerator

Abstract

In one embodiment, a refrigerator includes: a heat exchange pipeline which is accommodated in an inner wall of a vacuum adiabatic body and in which heat exchange of a refrigerant is performed; a through-part through which a refrigerant pipe provided in at least one of the first plate member or the second plate member to provide the heat exchange pipeline passes; and a sealing member configured toaccommodate the inlet pipe and the outlet pipe therein and coupled to at least one of the first plate member or the second plate member to restrict gas communication between the refrigerant pipe and the vacuum space part.

Description

technical field [0001] The present disclosure relates to vacuum insulated bodies and refrigerators. Background technique [0002] The vacuum insulation body is a product for suppressing heat transfer by making the inside of the body a vacuum. The vacuum insulated body can reduce the heat transfer performed by convection and conduction, so it is applied to heating equipment and cooling equipment. In a conventional insulation method applied to a refrigerator, a foamed polyurethane insulation wall having a thickness of about 30 cm or more is generally provided, although its application to refrigeration and freezing is different. However, the internal volume of the refrigerator is thus reduced. [0003] In order to increase the internal volume of the refrigerator, attempts have been made to apply a vacuum insulated body to the refrigerator. [0004] First, Korean Patent No. 10-0343719 (Reference 1) of the present applicant has been published. According to Reference 1, there ...

AI Technical Summary

Problems solved by technology

However, as the number of penetrated parts increases, heat loss may occur

Also, if there is a problem with sealing at either part, it is not advantageous because it is difficult to maintain a vacuum in the vacuum space

In addition, the welding part of these two pipes may be exposed to the vacuum space part, therefore, the gas generated from the welding part may destroy the vacuum state of the vacuum space part

[0008] In addition, pressure loss of the refrigerant may occur due to a sharp bending angle of a branch point of each of these two pipes constituting the heat exchange pipe.

The bending angle of the heat exchange pipe is further increased due to the pitch gap (approximately 200mm) of the rods constituting the support unit

Also, since heterogeneous bonding between the stainless steel material forming the vacuum space portion and the copper material forming the heat exchange pipe is to be performed at the penetrated portion, it is difficult to perform the work.

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