Kyl- eller frysskåp vars väggar innehåller isolering och vilka är anslutna till en permanent vakuumkälla

摘要

This invention relates to an electric refrigerator or freezer. The cabinet comprises one or several hermetically sealed heat insulated spaces (14) being wall or door panels in the cabinet said space or spaces via an evacuation conduit (17) communicating with a vacuum creating device (18). The vacuum creating device is a permanently installed unit in the cabinet which is arranged to be activated when or after that the cabinet has been installed at the user of the cabinet and after a long period of running creates a suitable underatmospheric pressure in the space or spaces (13).