Patent ID: 7537817

Claim:
An apparatus comprising: a heat source at a temperature above 100° C. and below 200° C.; a member to be protected and affected by heat of the heat source; and a vacuum heat insulator comprising: a heat seal layer; a core material; an enveloping member covering the core material and including: a gas barrier layer provided outside of the heat seal layer; and a protective layer provided outside of the gas barrier layer; and a fin to which the enveloping member is welded; wherein a melting point of the heat seal layer is above 100° C. and below 200° C., a melting point of the protective layer is at least 200° C., at least the fin is disposed on a low-temperature side of a heat-insulating surface of the vacuum heat insulator, and the vacuum heat insulator blocks thermal effect of the heat source on the member to be protected.