초록 ▼

An insulation system (10) is placed in ceilings or walls of buildings which are typically exposed on one side thereof to relatively large temperature changes and on the other side to relatively small temperature changes. The insulation system (10) includes a first thicker layer of insulative materia

An insulation system (10) is placed in ceilings or walls of buildings which are typically exposed on one side thereof to relatively large temperature changes and on the other side to relatively small temperature changes. The insulation system (10) includes a first thicker layer of insulative material (18) and a second thinner layer of insulative material (19), with an intermediate layer of phase change material (20) sandwiched therebetween. The phase change material undergoes a change of phase between solid state and liquid state during the course of a typical day due to the outside temperature ranging higher and lower than the phase change temperature. When undergoing a change of phase, the phase change material maintains a constant phase change temperature and therefore avoids exposure of the interior space (22) from the much higher or much lower temperatures of the exterior surface (21), thereby reducing the power requirements to maintain the desired temperature within the interior space (22).

대표청구항 ▼

A thermally insulated wall structure of a building placed in heat exchange relationship between a first space maintained at a generally constant predetermined temperature and a second space of a variable temperature within a range of temperatures extending higher than and lower than the temperature

A thermally insulated wall structure of a building placed in heat exchange relationship between a first space maintained at a generally constant predetermined temperature and a second space of a variable temperature within a range of temperatures extending higher than and lower than the temperature of the constant temperature space during the course of a twenty-four hour day, comprising: a first layer of heat insulation material having an insulation value and positioned adjacent the constant temperature space, a second layer of heat insulation material overlying said first layer of heat insulation material and positioned adjacent the variable temperature space, an intermediate layer of phase change material dispersed between said first and second layers of heat insulation materials comprising a phase change material that changes between a solid state and a liquid state at a predetermined phase change temperature, said phase change temperature falling within said range of temperatures of the variable temperature space during the course of a twenty-four hour day, said intermediate layer of phase change material contained in a plurality of pockets formed by bonding two sheets of material together for maintaining the phase change material in fixed dispersed positions between said first and second layers of heat insulation material during both phases of the phase change material, said phase change material between the layers of heat insulation material being arranged to absorb heat from the variable temperature space in response to the temperature of the variable temperature space becoming higher than the phase change temperature, or to give up heat to the variable temperature space in response to the temperature of the variable temperature space becoming lower than the phase change temperature, and the insulation value of said second layer of insulation material being lower than the insulation value of said first layer of insulation so that said phase change material more readily absorbs heat from or gives up heat to the variable temperature space than to the constant temperature space.