Integrated radiation refrigeration film building external wall insulation board

By integrating a radiative cooling film layer on the outer surface of the exterior wall insulation board and combining it with a waterproof membrane and aerogel interlayer, the problem of heat accumulation in traditional exterior wall insulation boards is solved, achieving efficient heat dissipation and structural stability, and extending service life.

CN224495656UActive Publication Date: 2026-07-14SHANGHAI LIGANG CURTAIN WALL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI LIGANG CURTAIN WALL TECH CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-14

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Abstract

The utility model provides a kind of integrated radiation refrigeration film's building external wall insulation board, it is related to building external wall insulation board technical field, comprising: wallboard base layer, wallboard base layer upper end face composite bonding has heat preservation layer, the heat preservation layer upper end is attached with flame-retardant layer, the flame-retardant layer upper end surface is bonded with metal reinforcing net layer, the metal reinforcing net layer upper end surface is welded with link stud, the metal reinforcing net layer upper end surface is composite bonded with radiation refrigeration film layer by resin weathering base layer, decorative batten is fixedly pressed in the radiation refrigeration film layer outer surface edge portion press hold.The utility model solves the problem that the heat of the existing conventional external wall insulation board only has heat insulation function, easily gathers in panel surface and is difficult to emit easily causes the cracking or breakage of plate body.
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Description

Technical Field

[0001] This utility model relates to the technical field of building exterior wall insulation panels, specifically to a building exterior wall insulation panel with an integrated radiative cooling film. Background Technology

[0002] The building exterior wall insulation board system mainly consists of a base wall, insulation layer, special adhesive, alkali-resistant fiberglass mesh protective layer and finishing layer. However, the existing traditional exterior wall insulation boards only have heat insulation function, and heat is easy to accumulate on the board surface and difficult to dissipate, which can easily cause the board to crack or break. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a building exterior wall insulation board with integrated radiative cooling film is provided to solve the problem that existing traditional exterior wall insulation boards only have heat insulation function, and heat is easy to accumulate on the board surface and difficult to dissipate, which can easily lead to cracking or breakage of the board.

[0004] To achieve the above objectives, a building exterior wall insulation board with an integrated radiant cooling film is provided, comprising: a wall panel base layer, wherein an insulation layer is compositely bonded to the upper surface of the wall panel base layer.

[0005] A flame-retardant layer is attached to the upper end of the insulation layer, a metal reinforcing mesh layer is bonded to the upper surface of the flame-retardant layer, a connecting stud is welded to the upper surface of the metal reinforcing mesh layer, and a radiation cooling film layer is bonded to the upper surface of the metal reinforcing mesh layer through a resin weather-resistant base layer. A decorative strip is fixedly pressed at the edge of the outer surface of the radiation cooling film layer.

[0006] Furthermore, a first waterproof membrane is adhered to the upper surface of the insulation layer, and a flame-retardant layer is adhered to the upper end of the first waterproof membrane.

[0007] Furthermore, a second waterproof membrane is attached to the lower end face of the insulation layer, and a waterproof coating is applied to the side surface of the insulation layer.

[0008] Furthermore, the internal cavity of the insulation layer is filled with an aerogel interlayer.

[0009] Furthermore, the decorative strip is in the shape of a rectangular frame and is attached to the surface of the radiation cooling film layer.

[0010] Furthermore, a positioning nut is embedded in the decorative strip groove, and the outer side of the positioning nut is tightly attached to the wall of the decorative strip groove by a sealing ring.

[0011] Furthermore, the inner side of the positioning nut is screwed to the connecting stud through an internal thread groove, and the cap surface of the positioning nut has a cross groove.

[0012] The beneficial effects of this utility model are as follows: the building exterior wall insulation board with integrated radiative cooling film utilizes a radiative cooling film layer placed on the outer surface of the exterior wall insulation board to release heat into space in the form of infrared radiation, achieving efficient cooling and auxiliary heat dissipation. This effectively prevents heat from accumulating on the surface of the building exterior wall insulation board for a long time, reducing the possibility of cracking or breakage caused by long-term heat accumulation, and extending the service life of the building exterior wall insulation board. The decorative strip is pressed and fixed to the edge of the radiative cooling film layer by the positioning nut, which helps to prevent the edge of the radiative cooling film layer from curling or partially detaching, ensuring the radiative cooling effect of the building exterior wall insulation board. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the building exterior wall insulation board with integrated radiative cooling film according to an embodiment of the present utility model.

[0014] Figure 2 This is a partial cross-sectional view of the building exterior wall insulation board with integrated radiative cooling film, according to an embodiment of this utility model.

[0015] Figure 3 This is an embodiment of the present utility model. Figure 2 Enlarged structural diagram at point A.

[0016] Figure 4 This is a three-dimensional structural diagram of the decorative strip according to an embodiment of the present utility model.

[0017] In the diagram: 1. Wall panel base layer; 2. Insulation layer; 21. First waterproof membrane; 22. Aerogel interlayer; 23. Second waterproof membrane; 3. Flame retardant layer; 4. Metal reinforcement mesh layer; 41. Connecting studs; 5. Radiant cooling membrane layer; 51. Resin weather-resistant base layer; 6. Decorative strip; 61. Positioning nut; 62. Sealing ring. Detailed Implementation

[0018] Reference Figures 1 to 4 As shown, this utility model provides a building exterior wall insulation board with an integrated radiant cooling film, comprising: a wall panel base 1, and an insulation layer 2 bonded to the upper surface of the wall panel base 1.

[0019] A flame-retardant layer 3 is attached to the upper end of the insulation layer 2. A metal reinforcing mesh layer 4 is bonded to the upper surface of the flame-retardant layer 3. A connecting stud 41 is welded to the upper surface of the metal reinforcing mesh layer 4. A radiation cooling film layer 5 is bonded to the upper surface of the metal reinforcing mesh layer 4 through a resin weather-resistant base layer 51. A decorative strip 6 is fixedly pressed at the edge of the outer surface of the radiation cooling film layer 5.

[0020] The building exterior wall insulation board uses a radiative cooling film layer 5 on one side of its surface to release heat into space in the form of infrared radiation, thereby achieving efficient cooling and auxiliary heat dissipation. This effectively prevents heat from accumulating on the surface of the building exterior wall insulation board for a long time, reducing the possibility of cracking or breakage caused by long-term heat accumulation and extending the service life of the building exterior wall insulation board. The decorative strip 6 is pressed and fixed to the edge of the radiative cooling film layer 5 by the positioning nut 61, which helps to prevent the edge of the radiative cooling film layer 5 from curling or detaching, ensuring the radiative cooling effect of the building exterior wall insulation board.

[0021] In this embodiment, a first waterproof membrane 21 is adhered to the upper surface of the insulation layer 2, and a flame-retardant layer 3 is bonded to the upper end of the first waterproof membrane 21. A second waterproof membrane 23 is adhered to the lower surface of the insulation layer 2, and a waterproof coating is applied to the sides of the insulation layer 2. An aerogel interlayer 22 is filled inside the cavity of the insulation layer 2.

[0022] As a preferred implementation, the waterproof coating on the outside of the insulation layer 2, the first waterproof membrane 21, and the second waterproof membrane 23 all serve to block water vapor, preventing water vapor from entering the insulation layer 2 and affecting its insulation effect. In addition, the insulation layer 2 is an insulation rock wool board, and the modified aerogel interlayer 22 filled in the middle further improves the overall heat insulation and insulation performance of the insulation layer 2. At the same time, it can also improve the sound insulation effect of the building, help reduce noise pollution, and improve the living comfort.

[0023] In this embodiment, the decorative strip 6 is a rectangular frame attached to the surface of the radiative cooling film layer 5. A positioning nut 61 is embedded in the groove of the decorative strip 6, and the outer side of the positioning nut 61 is tightly attached to the groove wall of the decorative strip 6 by a sealing ring 62. The inner side of the positioning nut 61 is screwed to the connecting stud 41 by an internal thread groove, and the cap surface of the positioning nut 61 has a cross groove.

[0024] As a preferred implementation, the rectangular border-shaped decorative strip 6 facilitates the pressing and fixing of the edge of the bonded composite radiation cooling film layer 5, preventing the radiation cooling film layer 5 from warping or detaching due to long-term outdoor exposure. The radiation cooling film layer 5 is a polymer film containing a SiO2 / Al2O3 microsphere array, with a solar reflectivity ≥95% and an emissivity ≥94% in the 8-13μm band. Utilizing natural thermal radiation exchange, it releases heat to the outside and into space in the form of infrared radiation, effectively preventing heat from accumulating on the surface of the building's exterior wall insulation board for extended periods. This reduces the likelihood of cracking or breakage caused by long-term heat accumulation, thus extending the service life of the building's exterior wall insulation board.

[0025] This utility model of an integrated radiant cooling film for building exterior wall insulation effectively solves the problem that existing traditional exterior wall insulation boards only have heat insulation functions, and heat easily accumulates on the board surface and is difficult to dissipate, which can easily lead to cracking or breakage of the board. It effectively avoids heat accumulation on the surface of the building exterior wall insulation board for a long time, reduces cracking or breakage caused by long-term heat accumulation, and extends the service life of the building exterior wall insulation board. It also helps to prevent the edge of the radiant cooling film layer from curling or detaching, ensuring the radiant cooling effect of the building exterior wall insulation board. It is suitable for building exterior wall insulation boards with integrated radiant cooling film.

Claims

1. A building exterior wall insulation board with integrated radiant cooling film, comprising: A wall panel base layer (1), wherein a thermal insulation layer (2) is laminated and bonded to the upper surface of the wall panel base layer (1), characterized in that: The upper end of the insulation layer (2) is attached to a flame retardant layer (3), the upper surface of the flame retardant layer (3) is bonded to a metal reinforcing mesh layer (4), the upper surface of the metal reinforcing mesh layer (4) is welded to a connecting stud (41), the upper surface of the metal reinforcing mesh layer (4) is bonded to a radiation cooling film layer (5) through a resin weather-resistant base layer (51), and a decorative strip (6) is fixedly pressed at the edge of the outer surface of the radiation cooling film layer (5).

2. The building exterior wall insulation board with integrated radiant cooling film according to claim 1, characterized in that, The upper surface of the insulation layer (2) is attached to a first waterproof membrane (21), and a flame retardant layer (3) is bonded to the upper end of the first waterproof membrane (21).

3. The building exterior wall insulation board with integrated radiant cooling film according to claim 1, characterized in that, The lower end face of the insulation layer (2) is attached with a second waterproof membrane (23), and the side face of the insulation layer (2) is coated with a waterproof coating.

4. The building exterior wall insulation board with integrated radiant cooling film according to claim 1, characterized in that, The inner cavity of the insulation layer (2) is filled with an aerogel interlayer (22).

5. The building exterior wall insulation board with integrated radiant cooling film according to claim 1, characterized in that, The decorative strip (6) is in the shape of a rectangular frame and is attached to the surface of the radiation cooling film layer (5).

6. The building exterior wall insulation board with integrated radiant cooling film according to claim 1, characterized in that, The decorative strip (6) is fitted with a positioning nut (61) in the groove, and the outer side of the positioning nut (61) is tightly attached to the groove wall of the decorative strip (6) through a sealing ring (62).

7. The building exterior wall insulation board with integrated radiant cooling film according to claim 6, characterized in that, The inner side of the positioning nut (61) is screwed to the connecting stud (41) through an internal thread groove, and the nut surface of the positioning nut (61) is provided with a cross groove.