Vacuum insulating material, hot water supplying device using the same and electric drive type hot water device

Abstract

The present invention provides a vacuum heat insulation material capable of maintaining high heat insulation capacity even in high temperature circumstance, and provides a hot water supply device having high heat insulation capacity. In the vacuum heat insulation material comprising core material (51) composing of inorganic fiber polymer, a housing material (52) having surface protection layer and aerospace sealing layer and heat melting coating layer, and sorbent (53) absorbing the moisture and air component of core material (51) and the housing material (52), the heat insulation capacity can be maintained in long time in condition of high temperature by laminating the aerospace sealing layer of the housing material (52) with a first aerospace sealing layer and the second aerospace sealing layer in terms of opposite metal surface of at least tow layers of metal layer, and using resin film with melting point more than 150 DEG C as heat melting coating layer.

Description

technical field The present invention relates to a vacuum heat insulating material, a hot water supply device using the vacuum heat insulating material, and an electric hot water device. Background technique In recent years, from the viewpoint of global warming, the need to reduce power consumption has been demanded in household electrical appliances. For example, a refrigerator is a product that consumes electricity among home appliances, and reducing the electricity consumption of the refrigerator has become an indispensable situation as a countermeasure against global warming. Under such circumstances, refrigerators employing vacuum insulation materials have been commercialized to suppress unnecessary heat exchange with the outside and remarkably improve heat insulation efficiency. As the main application fields of existing vacuum insulation materials, refrigerators are the first, and products with lower temperature ranges such as ultra-low temperature freezers, transpo...

AI Technical Summary

Problems solved by technology

On the high temperature side, the effect of small holes in the aluminum foil is taken into consideration. On the low temperature side, the vapor-deposited aluminum layer is less airtight than the original aluminum foil, and the airtightness tends to drop even in either structure.

In addition, although organic gas components are generated from adhesives, solvents, etc. from the laminated portion of the outer cover material 12 due to the influence of the high temperature side, these are not taken into consideration.

Images