High-efficiency energy-saving composite thermal insulation board with AA structure
By using bonding and staggered bonding technology between Class A fireproof insulation boards and vacuum insulation composite insulation boards, the problem of excessive thickness was solved, achieving improved fire resistance and space saving for thin composite insulation boards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI LANGLITONG NEW MATERIAL APPL CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-14
AI Technical Summary
The existing composite insulation boards used in buildings are too thick, which cannot meet the requirements of building fire protection codes, resulting in wasted space.
An AA structure is formed by bonding Class A fireproof insulation board and vacuum insulation composite insulation board. The vacuum insulation board is covered with a Class A fireproof slurry layer. Combined with staggered bonding technology, the fire resistance is improved and the thickness of the board is reduced.
This technology improves the fire resistance of thin composite insulation boards, reduces space waste, and maintains excellent insulation performance and ease of construction.
Smart Images

Figure CN224495462U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building insulation board technology, specifically to a high-efficiency energy-saving composite insulation board for buildings with an AA structure. Background Technology
[0002] High-efficiency energy-saving buildings are a new type of building that significantly reduces building energy consumption by combining passive design with active energy-saving technologies. Building insulation materials play a key role in the construction of ultra-low energy consumption buildings, providing effective thermal insulation for the building structure.
[0003] Composite insulation boards for buildings can be poured simultaneously with concrete, bonding seamlessly with the concrete and connected with connectors to form a cavity-free composite insulation wall, which is widely used in current building construction. However, composite insulation boards must not only focus on their thermal insulation performance but also on their fire resistance. According to the General Code for Fire Protection of Buildings (GB 55037-2022), "When the external envelope of a building uses insulation materials and non-combustible structures on both sides to form a cavity-free composite insulation structure, the fire resistance rating of this composite insulation structure should not be lower than the fire resistance requirements of the external envelope. When the combustion performance of the insulation material is B1 or B2, the thickness of the non-combustible structures on both sides of the insulation material should not be less than 50mm." This regulation results in currently available composite insulation boards being relatively thick, occupying a large space after construction. Therefore, a high-efficiency, energy-saving composite insulation board with an AA structure is needed to solve these problems. Utility Model Content
[0004] The purpose of this utility model is to provide a high-efficiency energy-saving composite insulation board for buildings with an AA structure, so as to solve the problems existing in the prior art mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A high-efficiency energy-saving composite insulation board for buildings with an AA structure includes a vacuum insulation composite insulation board and a Class A fireproof insulation board, wherein the Class A fireproof insulation board is bonded to one end face of the vacuum insulation composite insulation board by an adhesive.
[0007] The vacuum insulation composite insulation board includes a vacuum insulation board and a Class A fireproof mortar layer. The Class A fireproof mortar layer completely covers the vacuum insulation board, which protects the vacuum insulation board and improves the fire resistance of the composite insulation board for building use.
[0008] Preferably, the Class A fireproof insulation board is one of graphite homogeneous board, rock wool board, or polymerized polystyrene board.
[0009] Preferably, the Class A fireproof slurry layer has two layers of fiberglass mesh inside, and the two layers of fiberglass mesh are respectively disposed on the upper and lower sides of the vacuum insulation board.
[0010] Preferably, the adhesive is flame-retardant polyurethane foam or adhesive mortar.
[0011] Preferably, the lower end face of the Class A fireproof insulation board is provided with a mortar protective layer, and the mortar protective layer is provided with a double layer of mesh cloth.
[0012] Preferably, when the Class A fireproof insulation board is a rock wool board, the rock wool board has a groove perpendicular to its surface, and the groove has reinforcing ribs.
[0013] Preferably, the surface distance H1 between the outer surface of the Class A fireproof insulation board and the surface of the adjacent vacuum insulation board is set to 4-20mm, the thickness H2 of the vacuum insulation board is set to 4-40mm, and the distance L1 between the side edge of the Class A fireproof insulation board and the side edge of the adjacent vacuum insulation board is 8-15mm.
[0014] Preferably, the thickness H3 of the Class A fireproof insulation board is set to 30-150mm.
[0015] Preferably, the vacuum thermal insulation composite insulation board and the Class A fireproof insulation board are bonded in a staggered manner, with the staggered spacing set to be no less than 20mm.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This invention uses a vacuum insulation composite insulation board with a combustion performance rating of A and an A-grade fire-retardant mortar layer to bond and combine them, forming an AA flame-retardant composite insulation board. It is no longer constrained by the thickness requirements of insulation materials in the general building fire protection specifications, allowing the composite insulation board to be thinner, reducing space waste. Furthermore, the AA flame-retardant structure provides the composite insulation board with superior fire-retardant performance. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 This is a front cross-sectional view of the present invention.
[0020] Figure 3 This is a partial structural diagram of the product when rock wool board is used in this utility model.
[0021] Figure 4 This is a schematic diagram of the staggered bonding structure of the vacuum thermal insulation composite insulation board and the Class A fireproof insulation board of this utility model.
[0022] In the diagram: 1. Vacuum insulation composite insulation board; 11. Vacuum insulation board; 12. Class A fireproof mortar layer; 13. Fiberglass mesh; 2. Class A fireproof insulation board; 3. Adhesive; 4. Mortar protective layer; 5. Reinforcing ribs. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] Please see Figure 1-3 The present invention provides the following technical solution:
[0025] A high-efficiency energy-saving composite insulation board for buildings with an AA structure includes a vacuum insulation composite insulation board 1 and a Class A fireproof insulation board 2. The Class A fireproof insulation board 2 is bonded to one end face of the vacuum insulation composite insulation board 1 by an adhesive 3, which is flame-retardant polyurethane foam or adhesive mortar. The edges of the Class A fireproof insulation board 2 and the vacuum insulation composite insulation board 1 can be staggered, with a staggered spacing of not less than 20mm. Figure 4 As shown, this structure facilitates the splicing and installation of the composite insulation board for the building, while also improving the uniformity of heat conduction and enhancing the insulation performance of the composite insulation board.
[0026] The vacuum insulation composite insulation board 1 includes a vacuum insulation board 11 and a Class A fireproof mortar layer 12. The Class A fireproof mortar layer 12 completely covers the vacuum insulation board 11, which protects the vacuum insulation board 11 and improves the fire resistance of the composite insulation board for building. The Class A fireproof mortar layer 12 is made of flame-retardant expandable polystyrene foam particles, hydraulic inorganic cementitious materials, polymers, additives, etc.
[0027] Both the Class A fireproof insulation board 2 and the vacuum thermal insulation composite insulation board 1 have a Class A fire performance rating. Together, they constitute an AA fire performance rating building composite insulation board. It is no longer subject to the thickness requirements of insulation materials in the general building fire protection code, which allows the composite insulation board to be made thinner and reduces space waste.
[0028] The Class A fireproof insulation board 2 is one of the Class A fireproof materials such as graphite homogeneous board, rock wool board or polymer polystyrene board, and other Class A fireproof materials can also be used; the thickness H3 of the Class A fireproof insulation board 2 is set to 30-150mm, and the specific thickness can be adjusted according to the insulation performance parameters required by the building.
[0029] When the Class A fireproof insulation board 2 is a rock wool board, the rock wool board has a groove perpendicular to its surface, and a reinforcing rib 5 is provided in the groove; since rock wool itself has low rigidity, it is prone to deformation. By setting the reinforcing rib 5 in the rock wool, its rigidity can be improved and large deformation can be avoided during construction.
[0030] The Class A fireproof slurry layer 12 has two layers of fiberglass mesh 13 inside. The two layers of fiberglass mesh 13 are respectively located on the upper and lower sides of the vacuum insulation board 11 to improve the strength of the Class A fireproof slurry layer 12.
[0031] The distance H1 between the outer surface of the Class A fireproof insulation board 2 and the surface of the adjacent vacuum insulation board 11 is set to 4-20mm, the thickness H2 of the vacuum insulation board 11 is set to 4-40mm, and the distance L1 between the side edge of the Class A fireproof insulation board 2 and the side edge of the adjacent vacuum insulation board 11 is 8-15mm; the specific dimensional parameters can be adjusted and designed according to the building's thermal insulation performance requirements.
[0032] The lower end face of the Class A fireproof insulation board 2 is provided with a mortar protective layer 4, and the mortar protective layer 4 is provided with a double layer of mesh cloth inside; the mortar protective layer 4 is used to protect the surface of the Class A fireproof insulation board 2 and improve the surface strength of the Class A fireproof insulation board 2, which is more conducive to concrete pouring and bonding.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency energy-saving composite insulation board for buildings with an AA structure, characterized in that, It includes a vacuum thermal insulation composite insulation board (1) and a Class A fireproof insulation board (2), wherein the Class A fireproof insulation board (2) is bonded to one end face of the vacuum thermal insulation composite insulation board (1) by an adhesive (3); The vacuum insulation composite insulation board (1) includes a vacuum insulation board (11) and a Class A fireproof slurry layer (12). The Class A fireproof slurry layer (12) completely covers the vacuum insulation board (11) and is used to protect the vacuum insulation board (11) and improve the fire resistance of the composite insulation board for building.
2. The high-efficiency energy-saving composite insulation board for buildings with an AA structure according to claim 1, characterized in that: The Class A fireproof insulation board (2) is one of graphite homogeneous board, rock wool board or polymer polystyrene board.
3. The high-efficiency energy-saving composite insulation board for buildings with an AA structure according to claim 1, characterized in that: The Class A fireproof slurry layer (12) is provided with two layers of fiberglass mesh (13), which are respectively located on the upper and lower sides of the vacuum insulation board (11).
4. The high-efficiency energy-saving composite insulation board for buildings with an AA structure according to claim 1, characterized in that: The adhesive (3) is flame-retardant polyurethane foam or adhesive mortar.
5. The high-efficiency energy-saving composite insulation board for buildings with an AA structure according to claim 1, characterized in that: The lower end face of the Class A fireproof insulation board (2) is provided with a mortar protective layer (4), and the mortar protective layer (4) is provided with a double-layer mesh cloth inside.
6. The high-efficiency energy-saving composite insulation board for buildings with an AA structure according to claim 2, characterized in that: When the Class A fireproof insulation board (2) is a rock wool board, the rock wool board has a groove perpendicular to its surface, and the groove has reinforcing ribs (5).
7. The high-efficiency energy-saving composite insulation board for buildings with an AA structure according to claim 1, characterized in that: The surface distance H1 between the outer surface of the Class A fireproof insulation board (2) and the adjacent vacuum insulation board (11) is set to 4-20mm, the thickness H2 of the vacuum insulation board (11) is set to 4-40mm, and the distance L1 between the side edge of the Class A fireproof insulation board (2) and the side edge of the adjacent vacuum insulation board (11) is 8-15mm.
8. The high-efficiency energy-saving composite insulation board for buildings with an AA structure according to claim 1, characterized in that: The thickness H3 of the Class A fireproof insulation board (2) is set to 30-150mm.
9. The high-efficiency energy-saving composite insulation board for buildings with an AA structure according to claim 1, characterized in that: The vacuum thermal insulation composite insulation board (1) and the Class A fireproof insulation board (2) are bonded together in a staggered manner, with the staggered spacing set to be no less than 20mm.