WAERMEISOLATIONSEINRICHTUNG

摘要

In heat insulating devices, which consist of a moulded part of heat insulating material and a metal housing surrounding it, evacuation of the heat insulation device with the aid of a vacuum pump requires a relatively long pumping duration. The invention proposes that, in order to reduce the suction resistance in the moulded part (1, 11), groove-shaped depressions (5, 55) be provided which, together with the wall of the metal housing (2, 22) form suction channels (6, 66). Such vacuum heat insulating devices are used, for example, for the heat insulation of high-temperature batteries. …Significant figure: Figure 1 in conjunction with Figure 2.