초록 ▼

An insulation system (10, 180) 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, 180) includes a first inner layer of insulative

An insulation system (10, 180) 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, 180) includes a first inner layer of insulative material (18, 184) and a second outer layer of insulative material (19, 186), with an intermediate layer of phase change material (20, 182) 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, thereby moderating the temperature gradient across the inner layer of insulative material (18, 184). Thus, the heat transfer across the inner layer of insulative material (18, 184) is minimized and the temperature of interior space (22) is more efficiently maintained at a relatively constant temperature.

대표청구항 ▼

[ Wherefore, the following is claimed:] [1.] A thermal insulation structure for a building structure for placement in heat exchange relationship between a substantially constant temperature space normally maintained at a generally constant predetermined temperature and a variable temperature space n

[ Wherefore, the following is claimed:] [1.] A thermal insulation structure for a building structure for placement in heat exchange relationship between a substantially constant temperature space normally maintained at a generally constant predetermined temperature and a variable temperature space normally of a variable temperature within a range of temperatures extending higher than and lower than the temperature of the generally constant temperature space during a time cycle, comprising:a first layer of heat insulation material having first and second opposed surfaces, said first surface to be arranged to face the constant temperature space of the building structure,a second layer of heat insulation material having first and second opposed surfaces, said first surface of said second layer of insulation material overlying said second surface of said first layer of insulation material and said second surface of said second layer to be arranged to face the variable temperature space of the building structure,an intermediate layer of phase change material generally uniformly coated in a liquid form on at least one of said facing surfaces only of said first and second layers of insulation material, wherein interior portions of said first and second layers are substantially free of said phase change material, said phase change material comprising a 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 a time cycle,said first layer of insulation material having greater heat insulation value than said second layer of insulation material and said phase change material being arranged to more readily exchange heat with said variable temperature space than the constant temperature space when the thermal insulation structure is placed in a building structure and the temperature of the variable temperature space becomes higher than or lower than the phase change temperature.