초록 ▼

Heat insulation tiles (20) are supported in a grid (14) of support bars (15 and 16) of a ceiling assembly (10) with the ceiling tiles being in the form of insulation boxes (21) that form a dead air spaces (24) therein. Reflective material (22) is applied to at least one of the interior surfaces of t

Heat insulation tiles (20) are supported in a grid (14) of support bars (15 and 16) of a ceiling assembly (10) with the ceiling tiles being in the form of insulation boxes (21) that form a dead air spaces (24) therein. Reflective material (22) is applied to at least one of the interior surfaces of the box that faces the dead air space (24) and a layer of phase change material (40) is applied to the insulation boxes.

대표청구항 ▼

The invention claimed is: 1. A ceiling tile for mounting in a support grid and forming a heat insulated ceiling comprising: a heat insulation box including walls forming a dead air interior space of between about ½ inch and about 6 inches in height, a layer of phase change material positioned

The invention claimed is: 1. A ceiling tile for mounting in a support grid and forming a heat insulated ceiling comprising: a heat insulation box including walls forming a dead air interior space of between about ½ inch and about 6 inches in height, a layer of phase change material positioned in said insulation box and configured to change phases in response to heat applied to said phase change material, and a layer of heat reflective material disposed within the insulation box with a reflective surface facing the dead air interior space for reflecting heat toward said empty dead air interior space. 2. The ceiling tile of claim 1, wherein said dead air interior space is configured for having a heat insulation value that is greater when the heat flow is downward than when the heat flow is upward. 3. The ceiling tile of claim 1, and further including a protrusion extending about said heat insulation box for supporting the ceiling tile in the support grid. 4. The ceiling tile of claim 1, wherein the insulation box includes a lid sized and configured to rest on the heat insulation box and close the said dead air interior space of the insulation box, and the reflective material mounted to the inside surface of the lid and facing said dead air interior space. 5. The ceiling tile of claim 1, wherein said heat insulation box includes a top wall extending over said dead air interior space, said layer of phase change material is positioned on said top wall, and a layer of heat insulation material is positioned on said phase change material. 6. A ceiling tile for mounting in a support grid and forming a heat insulated ceiling comprising: a heat insulation box including walls forming a dead air interior space, a layer of heat reflective material disposed within the insulation box with a reflective surface facing the dead air interior space for reflecting heat toward said dead air interior space, and a layer of phase change material supported by said insulation box and configured to change phases in response to heat applied to said phase change material, said heat insulation box includes a bottom wall, and said layer of phase change material is positioned at said bottom wall of said insulation box and said layer of heat reflective material is positioned above said phase change material, such that when the heat flow is downward the insulation value of the ceiling tile is greater than when the heat flow is upward. 7. The ceiling tile of claim 6, wherein the phase change material is selected from materials that change between solid and liquid in a temperature range between about 60° F. and about 95° F. 8. The ceiling tile of claim 7 wherein said phase change material is positioned in said dead air interior space of said box. 9. A ceiling tile for mounting in a support grid and forming a heat insulated ceiling comprising: a heat insulation box including walls forming a dead air interior space, a layer of phase change material positioned in said insulation box and configured to change phases in response to heat applied to said phase change material, said layer of phase change material comprising a sheet having an array of bubbles and material in the bubbles formed of phase change material, and a layer of heat reflective material disposed within the insulation box with a reflective surface facing the dead air interior space for reflecting heat toward said dead air interior space. 10. The ceiling tile of claim 9, wherein the ceiling tile is constructed so that the rate of heat exchange through the ceiling tile is greater when the heat flow is upward than when downward. 11. A ceiling tile for mounting in a support grid and forming a heat insulated ceiling comprising: a heat insulation box including walls forming a dead air interior space, a layer of phase change material positioned in said insulation box and configured to change phases in response to heat applied to said phase change material, and a layer of heat reflective material disposed within the insulation box with a reflective surface facing the dead air interior space for reflecting heat toward said dead air interior space, and wherein when the insulation box is open, the insulation box is shaped to nest with duplicate insulation boxes, with the reflective material and the phase change material supported in the open insulation box. 12. The ceiling tile of claim 11, wherein the insulation box is formed of a material selected from: molded polystyrene, molded cellulose pulp, cardboard, vinyl, metal, EPS, and wood. 13. An insulated ceiling of a building structure positioned between a moderated temperature area and an adjacent area of temperatures that become higher and lower than the temperature of the moderated temperature area, comprising: a support grid defining an array of openings therethrough, heat insulation structures supported on said support grid and occupying the array of openings, the heat insulation structures each defining a dead air space greater than ½ inch high said heat insulation structures each including phase change material positioned in said dead air space and configured to change phases in response to heat applied to said phase change material, and heat reflective material in said dead air space positioned on the side of said dead air space adjacent the moderated temperature area and facing said dead air space, such that heat passing through the heat insulation structure is reflected by the heat reflective material and tends to change the phase change material to another phase. 14. The ceiling structure of claim 13, wherein the phase change material is selected from materials that change between solid and liquid in a temperature range between about 60° F. and about 95° F. 15. The ceiling structure of claim 13, wherein the heat insulation structures each comprise individual structures that fit the openings of the array of openings. 16. The ceiling structure of claim 13, wherein the heat insulation structures comprise heat insulation boxes. 17. The ceiling structure of claim 16, wherein the layer of phase change material is positioned in the heat insulation box. 18. The ceiling structure of claim 13 wherein the reflective material comprises aluminum foil having a reflective surface facing the dead air space and the aluminum foil is positioned above said phase change material. 19. A heat insulation tile for mounting to ceilings of building structures, said heat insulation tile comprising a heat insulation box having interior surfaces, the interior surfaces including a bottom wall and perimeter walls defining a dead air space, a layer of phase change material positioned on said bottom wall, and heat reflective material applied to at least one of the interior surfaces and facing said dead air space. 20. The heat insulation tile of claim 19, wherein the phase change material is positioned in the box. 21. The heat insulation tile of claim 19, wherein the phase change material is selected from the group consisting essentially of: paraffin, calcium chloride hexahydrate, and Glauber's salt. 22. The heat insulation tile of claim 19, wherein the phase change material is in the form of a bubble pack that includes phase change material in the bubbles. 23. The heat insulation tile of claim 19, wherein the phase change material rests on a bottom wall of the heat insulation boxes and said heat reflective material comprises a layer of heat reflective sheet material positioned on said phase change material. 24. The heat insulation tile of claim 19, wherein the phase change material selected from materials that change between solid and liquid in a temperature range between 60 degrees and 90 degrees F. 25. A heat insulation tile configured for mounting to ceilings of building structures comprising a heat insulation box defining bottom surface and a dead air space above the bottom surface of at least ½ inch high, a phase change material supported at the bottom surface by the heat insulation box, a heat reflective material in said box positioned above the phase change material at said bottom surface and facing the dead air space in a configuration such that heat applied to the heat insulation tile is reflected by the heat reflective material into the dead air space and the change of temperature in said box tends to change the phase change material to another phase, and the heat insulation value of the heat insulation tile is greater when the heat flow is downward than when the heat flow is upward, and the change of phase of the phase change material is faster when heat flow through the box is upward than when heat flow through the box is downward. 26. The heat insulation tile of claim 25, wherein said phase change material is retained in a bubble pack. 27. The heat insulation tile of claim 25, wherein the insulation box is formed of a material selected from: molded polystyrene, molded cellulose pulp, cardboard, and other heat insulation materials that are durable, light weight, and mildew resistant. 28. The heat insulation tile of claim 25, wherein the phase change material is selected from materials that change between solid and liquid in a temperature range between 60 degrees and 90 degrees F. 29. A ceiling structure formed with heat insulation tiles as described in claim 25.