Composite wallboard and near zero energy consumption assembled curtain wall enclosure system thereof

By combining composite wall panel structure and low thermal conductivity materials, the problems of discontinuous insulation layer and thermal bridging in traditional curtain wall enclosure systems are solved, achieving the insulation and airtightness requirements of near-zero energy buildings and improving the overall energy-saving effect.

CN113293901BActive Publication Date: 2026-08-25SICHUAN LINGLINGHAO TECH CO LTD
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Patent Information

Application Number
CN202110748154.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-07-01
Publication Date
2026-08-25
Estimated Expiration
2041-07-01

AI Technical Summary

Technical Problem

Existing glass curtain wall cladding systems have low energy efficiency. The insulation layer installation effect of traditional non-transparent curtain wall cladding systems is affected by the keel, resulting in discontinuity of the insulation layer and thermal bridging problems of the metal keel, making it difficult to meet the requirements of near-zero energy buildings.

Method used

The composite wall panel structure includes an outer panel, an insulation panel, a thermal insulation panel, and an inner panel, which are connected by tongue and groove profiles. Combined with materials with low thermal conductivity and multiple sealing measures, it forms a highly efficient panel combination, achieving continuous thermal insulation and airtightness.

Benefits of technology

Without increasing the thickness of the insulation layer, the thermal insulation performance and airtightness of the curtain wall are improved, the risk of thermal bridging is reduced, the requirements of passive ultra-low energy consumption buildings are met, and building area and cost are saved.

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Abstract

The application discloses a composite wallboard and a near-zero energy consumption assembled curtain wall enclosure system, and provides the composite wallboard, which comprises a wallboard main body, a second groove profile arranged on the upper end surface of the wallboard main body and a first groove profile arranged on the lower end surface of the wallboard main body, and the shapes of the first groove profile and the second groove profile are matched with each other; wherein the wallboard main body comprises, from outside to inside, an outer panel, an insulating board, a thermal insulation board and an inner panel; and the near-zero energy consumption assembled curtain wall enclosure system comprises a plurality of the composite wallboards; each composite wallboard is connected with a rafter purlin on the surface of a building main body through the second groove profile and screws, so as to be dry-hung on the wall. The application can reduce the thickness and weight of the thermal insulation layer of the traditional curtain wall board while achieving a very low heat transfer coefficient, and provides a curtain wall thermal insulation solution that meets the near-zero energy consumption requirement and cannot be achieved by the traditional curtain wall thermal insulation system.
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Description

Technical Field

[0001] This invention relates to the field of passive low-energy buildings, specifically to a composite wall panel and its near-zero energy prefabricated curtain wall enclosure system. Background Technology

[0002] Existing curtain wall cladding systems are mainly divided into two types: transparent glass curtain walls and non-transparent curtain walls. The glass curtain wall cladding system primarily consists of insulated glass and a supporting frame. The insulated glass typically uses double-glazed, vacuum-insulated, coated, or inert gas-filled composite glass structures to achieve both thermal insulation and decorative functions. The supporting frame is mostly made of thermally broken aluminum alloy, forming a unified glass curtain wall cladding system after installation. Non-transparent curtain wall cladding systems generally include non-transparent panels, insulation materials, and a dry-hanging system. Non-transparent panels are typically made of aluminum, stone, or aluminum-plastic composites. Insulation materials are primarily Class A fire-resistant rock wool, bonded and anchored to the base wall surface. The dry-hanging system generally uses metal keel materials such as aluminum alloy, square steel, and angle steel. The keel and pre-embedded metal parts in the building structure are connected by bolts or welding, fixing them to the building's exterior wall to form a large-area keel frame. The non-transparent panels are bolted to the keel of the dry-hanging system, forming the non-transparent curtain wall cladding system.

[0003] Glass curtain wall cladding systems suffer from low energy efficiency and high operating energy consumption. While glass curtain walls primarily rely on insulated glass, coated glass, and inert gas filling to improve thermal insulation, their performance is significantly lower than that of ordinary insulation panel systems, resulting in very high energy consumption. Although thermally broken aluminum profiles are used, the overall heat transfer coefficient of the cladding structure remains much higher than that of ordinary insulation panel cladding systems, making it difficult to achieve near-zero energy consumption and zero-carbon building standards.

[0004] Traditional non-transparent curtain wall cladding systems separate the insulation and decorative layers. The insulation board is adhered to the wall surface, positioned between the keel and the wall, while the decorative panel is on the outside of the keel, ultimately forming a structure of decorative panel—keel—cavity—insulation board—base wall. Its main drawbacks are that the metal keel penetrates the insulation layer without any thermal break measures. The insulation layer installation is often affected by the keel, resulting in poor installation quality and localized wall exposure. The insulation layer thickness must be within a certain range; otherwise, the external insulation outline will increase significantly. When used in near-zero energy buildings, the insulation layer thickness exceeds 200mm. Traditional methods affect the overall building area and floor area ratio, and the implementation cost is very high. Summary of the Invention

[0005] This invention provides a composite wall panel and its near-zero energy prefabricated curtain wall cladding system. Without increasing the insulation layer thickness, it solves the problems of discontinuous and incomplete insulation layers and thermal bridging of metal keels caused by the influence of the keel on the installation effect of traditional non-transparent curtain wall cladding systems. It meets the requirements of passive ultra-low energy buildings, ensuring that the building as a whole meets the special requirements of continuous insulation, low heat transfer through doors and windows, and airtightness. It also solves the problems of low insulation and high operating energy consumption in traditional curtain walls. This invention is achieved through the following technical solution:

[0006] On the one hand, this application provides a composite wall panel, including a wall panel body, a second tongue and groove profile disposed on the upper end face of the wall panel body, and a first tongue and groove profile disposed on the lower end face of the wall panel body, wherein the shapes of the first tongue and groove profile and the second tongue and groove profile are mutually compatible; wherein, the wall panel body includes an outer panel, an insulation panel, a heat insulation panel and an inner panel in sequence from the outside to the inside.

[0007] Based on the above solution, further details include: the insulation board is made of one of rock wool, modified polystyrene, or glass wool. The insulation board is a vacuum insulation board, its structure consisting of a vacuum-sealed aluminum foil or fiberglass composite gas-barrier bag, internally filled with a nanoporous core material of fumed silica as a support. The outer and inner panels are made of any one of fiber-reinforced materials, inorganic boards, or metal boards, such as fiberglass boards, basalt fiberboards, calcium silicate boards, cement fiberboards, magnesium oxide boards, color steel boards, or aluminum alloy boards.

[0008] The outer panel has a 90-degree folded edge structure on all four sides, with the folding direction being the bonding direction of the insulation board; the inner panel has a 90-degree folded edge structure on all four sides, with the folding direction being the bonding direction of the insulation board.

[0009] To better encapsulate the multi-layered structure of the composite wall panel, based on the above solution, the following further features are provided: the folded edge height of the outer panel is greater than the thickness of the insulation board, and the folded edge height of the inner panel is less than the thickness of the insulation board.

[0010] The composite wall panel has side sealing plates bonded to both sides in the thickness direction. One side of the side sealing plate is snapped into the edge-sealing structure of the outer panel, and the other side is snapped into the edge-sealing structure of the inner panel, thus sealing the exposed parts of the heat insulation board and the thermal insulation board.

[0011] Based on the above solution, a further step is to make the side edge sealing panel material as a plastic sheet or fiber-reinforced material sheet, which serves as the edge sealing and thermal break function of the insulation layer material.

[0012] The first and second tongue-and-groove profiles, respectively located on the upper and lower ends of the wall panel body, are both tubular profiles with hollow structures.

[0013] The first tongue-and-groove profile is fixed to the lower end of the insulation board; the second tongue-and-groove profile is fixed to the upper end of the insulation board.

[0014] To better connect the inner and outer panels and solve the problems of overall wall panel strength and thermal bridging, based on the above solution, the following further steps are taken: the first tongue and groove profile is embedded inside the lower end of the insulation board; the second tongue and groove profile is fixed to the upper end of the insulation board.

[0015] The first tongue and groove profile and the second tongue and groove profile are connected to the inner panel and the outer panel respectively on the composite wall panel by rivets and / or adhesives.

[0016] Based on the above scheme, the following further features are provided: the first tongue and groove profile and the second tongue and groove profile are fiber-reinforced materials with a fire performance rating of A; such as fiberglass, basalt, fiber-reinforced nylon or resin materials, whose thermal conductivity is generally less than 0.5W / (mK), serving as thermal bridges and structural connections.

[0017] Secondly, this application provides a near-zero energy consumption prefabricated curtain wall enclosure system, including multiple composite wall panels as described above; each composite wall panel is connected to the keel purlins on the surface of the building body by screws through a second tongue and groove profile, thereby being dry-hung on the wall.

[0018] To make the composite wall panel more securely fixed to the surface of the building structure, in addition to the above solution, the screws are made of reinforced plastic-encased metal mushroom nails that penetrate the inner panel and can also serve as thermal bridges.

[0019] Based on the above scheme, the following further features are provided: the keel purlins are connected to the main steel structure of the building to provide structural strength. The keel purlins can be made of galvanized square tubes, aluminum square tubes, or metal materials such as channel steel and angle steel to meet the requirements for external cladding of composite wall panels.

[0020] In the curtain wall cladding system, along the longitudinal direction of the building structure, the first tongue-and-groove profile of each composite wall panel is connected to the second tongue-and-groove profile of another composite wall panel via a tongue-and-groove interlocking method. The connection between the first and second tongue-and-groove profiles serves for the overall anchoring of the panels and the connection between the inner and outer panels, while also providing thermal insulation. Multiple composite wall panels are connected sequentially to form the longitudinal structure of the curtain wall cladding system.

[0021] Based on the above solution, further steps include: applying multiple sealing strips at the horizontal joint of the first tongue-and-groove profile and the staggered joint between the vertical joints of the two unit wall panels to achieve water and air sealing.

[0022] The joint between the inner surfaces of the upper and lower wall panels is also sealed with a joint sealant.

[0023] In order to prevent indoor moisture penetration and increase the airtightness of the system, based on the above solution, the joint seal is further provided as a waterproof vapor barrier membrane.

[0024] In the curtain wall enclosure system, each composite wall panel is connected to two other composite wall panels on its side in the horizontal direction of the building body; a T-shaped decorative strip is inlaid at the longitudinal joint of the inner panel of each pair of composite wall panels, and the T-shaped decorative strip is fixed to the joint of the two composite wall panels by rivets or butyl pressure-sensitive adhesive strips; multiple composite wall panels are connected in sequence to form the horizontal structure of the curtain wall enclosure system.

[0025] Based on the above solution, the T-shaped decorative strip is further made of aluminum or plastic.

[0026] Based on the above solution, a further step is to fill the longitudinal joint of the outer panels of every two composite wall panels with sealing strips to seal against water and air, and to help fix the horizontally adjacent composite wall panels.

[0027] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0028] 1. This invention, through a highly efficient panel combination structure, supplemented by low-energy-efficiency fireproof and thermal insulation materials, achieves the goal of increasing thermal insulation performance while reducing the thickness and weight of the insulation and heat insulation layers of traditional curtain wall panels. This saves the area occupied by external wall insulation, reduces the stress on the steel structure, and minimizes the cavity size, providing a curtain wall insulation solution that meets the near-zero energy consumption requirements that traditional curtain wall insulation systems cannot achieve.

[0029] 2. This invention uses special tongue-and-groove profile connectors, which have lower heat transfer than ordinary metal keel and better durability than wood keel; it can block heat from being conducted inward from the easily heat-conducting metal plate, reduce the risk of condensation, mold, and rust on the indoor panel surface, and enhance the sealing and thermal insulation performance of the overall curtain wall enclosure system.

[0030] 3. This invention enhances thermal insulation and airtightness through multiple sealing measures between the panels, thereby increasing the thermal insulation, wind pressure resistance, airtightness, and watertightness of the curtain wall, and meeting the airtightness requirements of passive ultra-low energy buildings. Attached Figure Description

[0031] A further understanding of the embodiments of the present invention can be obtained by referring to the accompanying drawings, and other features and advantages of the invention can be obtained from the following description of the claims and preferred embodiments. Without departing from the scope of the invention, the individual features of the different embodiments shown in the figures can be combined in any desired manner. In the drawings:

[0032] Figure 1 This is a schematic diagram of the plate structure of the present invention;

[0033] Figure 2 This is a schematic diagram showing the position of the side sealing plate of the present invention;

[0034] Figure 3 This is a structural diagram illustrating the principle of the present invention.

[0035] Figure 4 This is an assembly diagram of the present invention.

[0036] Explanation of reference numerals in the attached drawings: 01-First tongue and groove profile, 02-Second tongue and groove profile, 03-Keel purlin, 04-Joint sealant, 05-T-shaped decorative strip, 06-Butyl pressure-sensitive adhesive strip, 07-Inner panel, 08-Insulation board, 09-First sealing strip, 10-Screw, 11-Second sealing strip, 12-Outer panel, 13-Insulation board, 14-Side sealing plate.

[0037] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0039] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other embodiments, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the invention.

[0040] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in any suitable combination and / or sub-combination in one or more embodiments or examples. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more related listed items.

[0041] In the description of this invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0042] Example 1:

[0043] like Figure 1 As shown, this embodiment provides a composite wall panel, including a wall panel body, a second tongue and groove profile 02 disposed on the upper end face of the wall panel body, and a first tongue and groove profile 01 disposed on the lower end face of the wall panel body. The shapes of the first tongue and groove profile 01 and the second tongue and groove profile 02 are mutually compatible. The wall panel body includes an outer panel 12, a heat insulation board 13, a thermal insulation board 08, and an inner panel 07 from the outside to the inside.

[0044] Without increasing the thickness of the insulation layer, this invention solves the problems of discontinuous and incomplete insulation layer coverage and thermal bridging of metal keel caused by the influence of the keel on the paving effect of traditional non-transparent curtain wall cladding systems. It can meet the requirements of passive ultra-low energy consumption buildings, ensuring that the building as a whole meets the special requirements of continuous insulation, low heat transfer of doors and windows, and air tightness. It also solves the problems of low insulation and energy saving level and high operating energy consumption of traditional curtain walls.

[0045] The insulation board 08 is made of one of the following materials: rock wool, modified polystyrene, or glass wool, preferably a 30-100mm thick vertical fiber rock wool board. The insulation board 13 is a vacuum insulation board 13, which has a special structure consisting of a vacuum-sealed aluminum foil or fiberglass composite gas barrier bag filled with a nanoporous core material of fumed silica as a support, preferably a 10-50mm thick vacuum insulation board 13. The outer panel 12 and the inner panel 07 are made of any one of the following materials: fiber reinforced material, inorganic board, or metal board, such as: fiberglass board, basalt fiberboard, calcium silicate board, cement fiberboard, magnesium oxide board, color steel plate, or aluminum alloy plate; the inner panel 07 is preferably made of fiber reinforced material, and the outer panel 12 is preferably made of fluorocarbon painted aluminum plate.

[0046] Preferably, the heat transfer coefficients of insulation board 08 and heat insulation board 13 can be adjusted by varying their thickness to create a series of products that meet the heat transfer coefficient requirements of different regions. The product dimensions (width and height) can also be modularized. Using vacuum heat insulation board 13, an ultra-thin and high-efficiency insulation material, reduces the thickness by 120mm compared to other insulation boards 08 with equivalent performance, increasing system safety. At the same thickness, it increases the thermal resistance by 80% compared to commonly used insulation materials, resulting in better energy-saving performance. This is a crucial technology for achieving ultra-low energy consumption building envelope structures in this invention.

[0047] The outer panel 12 has four folded edges with a folding angle of 90 degrees and a folding height of 20-50mm. The folding direction is the same as the bonding direction of the insulation board 13, and it is used to protect the insulation board 13 pasted inside the outer panel 12. Both the inner and outer panels 12 have four folded edges with a folding angle of 90 degrees and a folding height of 10-50mm. The folding direction is the same as the bonding direction of the insulation board 08, and it is used to protect the insulation board 08 pasted inside the inner panel 07.

[0048] In order to better enclose the multi-layer structure of the composite wall panel, the folded height of the outer panel 12 is greater than the thickness of the insulation board 13, and the folded height of the inner panel 07 is less than the thickness of the insulation board 08.

[0049] like Figure 2 As shown, side sealing plates 14 are bonded to both sides of the composite wall panel in the thickness direction. One side of the side sealing plate 14 is snapped into the edge-sealing structure of the outer panel 12, and the other side is snapped into the edge-sealing structure of the inner panel 07, thereby sealing the exposed parts of the sides of the heat insulation board 13 and the thermal insulation board 08.

[0050] The side sealing panel 14 is made of plastic sheet or fiber-reinforced material sheet, which serves to seal the edge of the insulation layer material.

[0051] The main bodies of the first tongue-and-groove profile 01 and the second tongue-and-groove profile 02, which are respectively set on the upper and lower ends of the wall panel, are both tubular profiles with cavity structures, and the wall thickness of the cavity structure is 2-5mm.

[0052] The first tongue and groove profile 01 is fixed to the lower end of the insulation board 08; the second tongue and groove profile 02 is fixed to the upper end of the insulation board 08.

[0053] In order to better connect the inner panel 07 and the outer panel 12 and solve the problems of overall strength and thermal bridging of the wall panel, the first tongue and groove profile 01 is embedded in the lower end of the insulation board 08; the second tongue and groove profile 02 is fixed to the upper end of the insulation board 08.

[0054] The first tongue and groove profile 01 and the second tongue and groove profile 02 are connected to the inner panel 07 and the outer panel 12 respectively on the composite wall panel by rivets and / or adhesives.

[0055] The first tongue and groove profile 01 and the second tongue and groove profile 02 are fiber-reinforced materials with a fire performance rating of A; such as fiberglass, basalt, fiber-reinforced nylon or resin materials, whose thermal conductivity is generally less than 0.5W / (mK), serving as thermal bridges and structural connections.

[0056] Example 2:

[0057] like Figure 3 and Figure 4As shown, this embodiment provides a near-zero energy consumption prefabricated curtain wall enclosure system, including multiple composite wall panels as described above; each composite wall panel is connected to the keel purlin 03 on the surface of the building body through a second tongue and groove profile 02 and screws 10, thereby dry-hanging it on the wall.

[0058] To ensure the composite wall panel is more securely fixed to the building's surface, the screws 10 are made of reinforced plastic-encased metal mushroom nails that penetrate the inner panel 07 and also serve as thermal break bridges.

[0059] The keel purlin 03 is connected to the main steel structure of the building and plays a role in structural strength. The keel purlin 03 can be made of galvanized square tube, aluminum square tube, or metal materials such as channel steel and angle steel to meet the requirements of composite wall panel cladding.

[0060] In the curtain wall cladding system, along the longitudinal direction of the building structure, the first tongue-and-groove profile 01 of each composite wall panel is connected to the second tongue-and-groove profile 02 of another composite wall panel via a tongue-and-groove snap-fit ​​connection. The connection between the first tongue-and-groove profile 01 and the second tongue-and-groove profile 02 serves for the overall anchoring of the panels and the connection between the inner and outer panels 12. The profiles exhibit high strength and also provide thermal insulation. Multiple composite wall panels are sequentially connected to form the longitudinal structure of the curtain wall cladding system.

[0061] A first sealing strip 09 is provided at the mating joint between the first tongue-and-groove profile 01 and the second tongue-and-groove profile, and a second sealing strip 11 is provided at the transverse joint of the two composite wall panels to provide a water and air seal. The sealing strips are preferably made of EPDM material.

[0062] The joint between the inner surfaces of the upper and lower wall panels is also covered with a joint sealant 04.

[0063] To prevent indoor moisture penetration and increase the airtightness of the system, the joint seal 04 is a waterproof vapor barrier membrane.

[0064] In the curtain wall enclosure system, in the horizontal direction of the building body, each composite wall panel is connected to two other composite wall panels on its side; a T-shaped decorative strip 05 is inlaid at the longitudinal joint of the inner panel 07 of each pair of composite wall panels, and the T-shaped decorative strip 05 is fixed to the joint of the two composite wall panels by rivets or butyl pressure-sensitive adhesive strips 06; multiple composite wall panels are connected in sequence to form the horizontal structure of the curtain wall enclosure system.

[0065] The T-shaped decorative strip 05 is made of aluminum or plastic.

[0066] Sealing strips are filled at the longitudinal joints of the outer panels 12 of every two composite wall panels to seal against water and air, and to help fix the horizontally adjacent composite wall panels. Preferably, the sealing strips are made of EPDM material.

[0067] As can be seen from the technical solutions of the embodiments, the present invention, through a highly efficient panel combination structure, supplemented by low-energy-efficiency fireproof and thermal insulation materials, achieves the goal of increasing thermal insulation performance while reducing the thickness and weight of the insulation and heat insulation layers of traditional curtain wall panels, saving the area occupied by external wall insulation, reducing the stress on the steel structure, and minimizing the cavity size. It provides a curtain wall insulation solution that meets the near-zero energy consumption requirements that traditional curtain wall insulation systems cannot achieve. The present invention uses special tongue and groove profile connectors, which have lower heat transfer than ordinary metal keel and better durability than wood keel. It can block heat conduction from the easily heat-conducting metal plates to the interior, reducing the risk of condensation, mold, and rust on the surface of the interior panels, and enhancing the sealing and thermal insulation performance of the overall curtain wall enclosure system. The present invention enhances thermal insulation and airtightness through multiple sealing measures between the panels, increasing the thermal insulation, heat insulation, wind pressure resistance, airtightness, and watertightness performance of the curtain wall, meeting the airtightness requirements of passive ultra-low energy buildings.

[0068] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A composite wall panel, characterized in that, The wall panel includes a main body; the main body of the wall panel includes an outer panel (12), an insulation board (13), a thermal insulation board (08), and an inner panel (07) from the outside to the inside; it also includes a second tongue and groove profile (02) fixed to the outside of the upper end face of the thermal insulation board (08) and a first tongue and groove profile (01) embedded in the inside of the lower end face of the thermal insulation board (08). The shapes of the first tongue and groove profile (01) and the second tongue and groove profile (02) are mutually matched. The first tongue and groove profile (01) and the second tongue and groove profile (02) are respectively connected to the inner panel (07) and the outer panel (12) on the composite wall panel; the main body of the first tongue and groove profile (01) and the second tongue and groove profile (02) are both tubular profiles with a cavity structure; each composite wall panel is connected to the main body of the building through the second tongue and groove profile; the second tongue and groove profile (02) is connected to the keel purlin (03) on the surface of the main body of the building through screws (10).

2. The composite wall panel according to claim 1, characterized in that, The outer panel (12) has a 90-degree folded edge structure on all four sides, and the folding direction is the bonding direction of the insulation board (13); the inner panel (07) has a 90-degree folded edge structure on all four sides, and the folding direction is the bonding direction of the insulation board (08).

3. A composite wall panel according to claim 2, characterized in that, The composite wall panel has side sealing plates (14) bonded to both sides in the thickness direction. One side of the side sealing plate (14) is snapped into the edge-sealing structure of the outer panel (12), and the other side of the side sealing plate (14) is snapped into the edge-sealing structure of the inner panel (07).

4. A composite wall panel according to claim 1, characterized in that, The first tongue and groove profile (01) and the second tongue and groove profile (02) are connected to the inner panel (07) and the outer panel (12) respectively on the composite wall panel by rivets and / or adhesives.

5. A near-zero energy consumption prefabricated curtain wall enclosure system, characterized in that, The system includes multiple composite wall panels as described in any one of claims 1-4; in the longitudinal direction of the building body, the first tongue-and-groove profile (01) of each composite wall panel is connected to the second tongue-and-groove profile (02) of another composite wall panel by mutual cooperation; multiple composite wall panels are connected in sequence to form the longitudinal structure of the curtain wall enclosure system.

6. A near-zero energy consumption prefabricated curtain wall enclosure system according to claim 5, characterized in that, In the curtain wall enclosure system, in the horizontal direction of the main building, each composite wall panel is connected to two other composite wall panels on its side; a T-shaped decorative strip (05) is inlaid at the longitudinal joint of the inner panel (07) of each pair of composite wall panels, and the T-shaped decorative strip (05) is fixed to the joint of the two composite wall panels by rivets or butyl pressure-sensitive adhesive strips (06); multiple composite wall panels are connected in sequence to form the horizontal structure of the curtain wall enclosure system.

7. A near-zero energy consumption prefabricated curtain wall enclosure system according to claim 5, characterized in that, Along the longitudinal direction of the building body, joint sealant (04) is also pasted between the inner horizontal joints of two adjacent composite wall panels.

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