Thermal insulation wall and ultralow-energy-consumption sandwich thermal insulation wallboard

By using a combination structure of steel sheet grid and GFRP heat-blocking bolts in sandwich insulation wall panels, along with seamless installation and water channel design, thermal bridging and leakage problems are solved, achieving ultra-low energy consumption and improved waterproofing performance.

CN224200076UActive Publication Date: 2026-05-05CHINA RAILWAY NO 5 ENG GRP BUILDING ENG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY NO 5 ENG GRP BUILDING ENG
Filing Date
2025-03-28
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing sandwich insulation walls are prone to thermal bridging during consolidation, and leakage is likely to occur at the horizontal joints, affecting the insulation effect of the wall and making it difficult to meet the requirements of zero-energy and ultra-low-energy buildings.

Method used

The structure uses steel mesh for the inner and outer wall frames and GFRP heat-blocking bolts for the connectors. The outer wall panels are tapered inward to form a seamless installation, and water-guiding grooves are set on the side of the outer wall panels to block heat flow and prevent water from entering. Water-stop strips and waterproof mortar are used to improve the waterproof effect.

Benefits of technology

It effectively blocks the thermal bridging effect, improves the thermal insulation effect, reduces building energy consumption, and prevents water seepage, achieving ultra-low energy consumption thermal insulation and waterproof performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a thermal insulation wall body and an ultra-low energy consumption sandwich thermal insulation wallboard, and the thermal insulation wallboard comprises an inner wallboard, an outer wallboard, an outer wallboard, an inner wall framework and an outer wall framework, an outer wall framework is arranged in the outer wall plate; the sandwich thermal insulation layer is arranged between the inner wall plate and the outer wall plate; the connecting piece is arranged on the sandwich heat preservation layer, and the two ends of the connecting piece are connected with the inner wall framework and the outer wall framework in a pulling mode respectively; wherein the inner wall framework and the outer wall framework are both steel sheet grids, and the connecting pieces are GFRP heat blocking bolts. The combination of the steel sheet grating and the GFRP heat blocking bolt is arranged in the heat preservation wallboard, and the heat conductivity of the GFRP bolt is far lower than that of a steel sheet, so that when heat is transferred between the inner wallboard and the outer wallboard, the GFRP heat blocking bolt can obviously block heat flow and reduce the transfer amount of the heat through a connecting piece, heat transfer between the inner wallboard and the outer wallboard is effectively blocked, the heat bridge effect is reduced, and the service life of the heat preservation wallboard is prolonged. The heat preservation effect is improved, and then the building energy consumption is reduced.
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Description

Technical Field

[0001] This utility model relates to an insulated wall and an ultra-low energy consumption sandwich insulated wall panel, belonging to the field of building energy-saving wall technology. Background Technology

[0002] Sandwich insulation wall technology is a significant innovation in building energy conservation. Its core utilizes a "sandwich" composite structure: an inner load-bearing structural layer (concrete or masonry), a middle layer filled with high-efficiency insulation materials (such as EPS, XPS, or rock wool), and an outer protective layer. This technology overcomes the technical bottlenecks of traditional external insulation, which is prone to aging and detachment, balancing structural safety and insulation performance, making it particularly suitable for high-rise buildings and extremely cold regions. Integrated construction is achieved through layered casting or prefabrication processes, resulting in superior fire resistance, high durability, and low thermal bridging effects. Compared to single-wall structures, sandwich insulation systems can improve building energy efficiency by over 40% while reducing life-cycle maintenance costs, aligning with the sustainable development concept of green buildings and leading to its widespread adoption in recent years. With the emergence of zero-energy and ultra-low-energy building concepts, higher demands are placed on the insulation performance of sandwich insulation walls. Currently, sandwich insulation walls are prone to thermal bridging when bonded to the main structure, and leakage is common at horizontal joints, affecting the wall's insulation performance. There is an urgent need to develop new structures to address these issues. Utility Model Content

[0003] Based on the above, this utility model provides an insulated wall and an ultra-low energy consumption sandwich insulated wall panel to overcome the shortcomings of the prior art.

[0004] The technical solution of this utility model is: an ultra-low energy consumption sandwich insulation wall panel, comprising:

[0005] Interior wall panels, which have an internal wall frame;

[0006] The exterior wall panel has an internal exterior wall frame;

[0007] A sandwich insulation layer is disposed between the inner wall panel and the outer wall panel;

[0008] A connector is provided in the sandwich insulation layer, and both ends of the connector are respectively connected to the inner wall frame and the outer wall frame;

[0009] The inner wall frame and the outer wall frame are both steel sheet grids, and the connectors are GFRP heat-blocking bolts.

[0010] In one example, both the inner wall frame and the outer wall frame are composed of multiple longitudinal steel plates and multiple transverse steel plates connected in an alternating manner.

[0011] In one example, the top of the outer wall panel extends upward by a predetermined distance relative to the top of the inner wall panel, and the bottom of the inner wall panel extends downward by a predetermined distance relative to the bottom of the inner wall panel.

[0012] In one example, the external wall frame extends outward by a predetermined distance relative to both the top and bottom of the external wall panel.

[0013] In one example, the side end of the exterior wall panel is provided with a water guide groove along the height direction, and the water guide groove is provided from the top to the bottom of the exterior wall panel.

[0014] The present invention also provides an insulated wall, which is equipped with the above-mentioned ultra-low energy consumption sandwich insulated wall panel.

[0015] In one example, the sandwich insulated wall panel is installed on a building frame, the top and bottom of which have an inward-curving structure.

[0016] The beneficial effects of this invention are as follows: By combining steel mesh and GFRP heat-blocking bolts within the insulated wall panel, the GFRP bolts, with a thermal conductivity far lower than that of the steel mesh, significantly impede heat flow when heat is transferred between the inner and outer wall panels. This reduces the amount of heat transferred through the connectors, effectively blocking heat transfer between the inner and outer wall panels, reducing the thermal bridging effect, improving insulation performance, and consequently reducing building energy consumption. Furthermore, the outer wall panel extends outwards from the top and bottom of the inner wall panel, preventing horizontal seams from forming after installation. Combined with waterstop strips and waterproof mortar, this results in better waterproofing while preventing water seepage from entering the outer wall panel. Attached Figure Description

[0017] Figure 1 A schematic diagram of an ultra-low energy consumption sandwich insulation wall panel;

[0018] Figure 2 This is a schematic diagram of the internal wall framework and the external wall framework;

[0019] Figure 3 This is a schematic diagram of the thermal insulation wall panel, waterstop strip, and waterproof mortar.

[0020] Figure 4 A schematic diagram of an insulated wall from one perspective;

[0021] Figure 5 A schematic diagram of an insulated wall from another perspective;

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Interior wall panel, 2. Exterior wall panel, 3. Sandwich insulation layer, 4. Interior wall frame, 41. Longitudinal steel sheet, 42. Transverse steel sheet, 5. Exterior wall frame, 6. Connector, 7. Water channel, 8. Building frame, 9. Waterproof mortar, 10. Waterstop strip. Detailed Implementation

[0024] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] Example 1: An ultra-low energy consumption sandwich insulation wall panel

[0026] Please see Figures 1 to 3 The insulated wall panel includes an inner wall panel 1, a sandwich insulation layer 3, and an outer wall panel 2 stacked in sequence. An inner wall frame 4 is provided in the inner wall panel 1, and an outer wall frame 5 is provided in the outer wall panel 2. Both the inner wall frame 4 and the outer wall frame 5 are steel grids, which are formed by multiple longitudinal steel sheets 41 and multiple transverse steel sheets 42 connected in an alternating manner. Multiple connectors 6 are provided in the sandwich insulation layer 3. The two ends of these connectors 6 are respectively tied to the inner wall frame 4 and the outer wall frame 5. They can be connected by drilling holes in the steel sheets. The connectors 6 are made of GFRP heat-blocking bolts.

[0027] By setting a combination of steel mesh and GFRP heat-blocking bolts inside the insulation wall panel, the GFRP bolts, whose thermal conductivity is much lower than that of steel mesh, will significantly hinder heat flow when heat is transferred between the inner and outer wall panels 2, reducing the amount of heat transferred through the connector 6. This effectively blocks heat transfer between the inner and outer wall panels 2, reduces the thermal bridge effect, improves the insulation effect, and thus reduces building energy consumption.

[0028] To improve the waterproofing effect, the top of the outer wall panel 2 extends upward relative to the top of the inner wall panel 1 by a certain distance, and the bottom of the outer wall panel 2 extends downward relative to the bottom of the inner wall panel 1 by a certain distance. As a result, both the top and bottom ends of the inner wall panel 1 are recessed inward relative to the outer wall panel 2 by a certain distance, so that no horizontal through joints are formed after the insulation wall panel is installed. Combined with the waterstop strip 10 and waterproof mortar 9, the waterproofing effect is better and the seepage is blocked on the side of the outer wall panel 2.

[0029] To further improve the water-proofing effect, a water guide groove 7 is provided on the side end of the outer wall panel 2 along the height direction. The water guide groove 7 is connected from the top to the bottom of the outer wall panel 2, so that water can be guided downward through the water guide groove 7, reducing the risk of leakage to the sandwich insulation layer 3 and the inner wall panel 1.

[0030] To facilitate installation, the external wall frame 5 extends outward at both the top and bottom of the external wall panel 2. The wall panel can be fixed to the building frame 8 through the external wall frame 5, achieving concealed installation of the external wall panel 2. This also avoids the thermal bridge formed by the traditional node bolt connection penetrating the wall panel and insulation layer, and facilitates decoration construction.

[0031] Example 2: A thermal insulation wall

[0032] Please see Figures 1 to 5 The sandwich insulated wall panels are installed on the building frame 8. The top and bottom of the building frame 8 adopt an inward structure, so that the inner wall panel 1 can be placed inside the building frame 8, while the outer wall panel 2 can realize the limiting and positioning functions. At the same time, after the installation is completed, waterproof mortar 9 and waterstop strip 10 can be applied to the outside of the extended outer wall frame 5. The connection nodes are completely invisible and do not affect the interior and exterior decoration.

[0033] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A type of ultra-low energy consumption sandwich insulation wall panel, characterized in that, include: The inner wall panel (1) has an inner wall frame (4) inside it. The exterior wall panel (2) has an exterior wall frame (5) inside it; A sandwich insulation layer (3) is disposed between the inner wall panel (1) and the outer wall panel (2); A connector (6) is provided on the sandwich insulation layer (3), and the two ends of the connector (6) are respectively connected to the inner wall frame (4) and the outer wall frame (5); The inner wall frame (4) and the outer wall frame (5) are both steel sheet grids, and the connector (6) is a GFRP heat-blocking bolt.

2. The ultra-low energy consumption sandwich insulation wall panel according to claim 1, characterized in that, The inner wall frame (4) and the outer wall frame (5) are both made of multiple longitudinal steel plates (41) and multiple transverse steel plates (42) connected in an alternating manner.

3. The ultra-low energy consumption sandwich insulation wall panel according to claim 1, characterized in that, The top of the outer wall panel (2) extends upward by a predetermined distance relative to the top of the inner wall panel (1), and the bottom of the inner wall panel (1) extends downward by a predetermined distance relative to the bottom of the inner wall panel (1).

4. The ultra-low energy consumption sandwich insulation wall panel according to claim 3, characterized in that, The outer wall frame (5) extends outward by a predetermined distance relative to the top and bottom of the outer wall panel (2).

5. The ultra-low energy consumption sandwich insulation wall panel according to claim 3, characterized in that, The side end of the outer wall panel (2) is provided with a water guide groove (7) along the height direction, and the water guide groove (7) is connected from the top to the bottom of the outer wall panel (2).

6. A thermal insulation wall, characterized in that, The wall panel is equipped with the ultra-low energy consumption sandwich insulation wall panel as described in any one of claims 1 to 5.

7. The thermal insulation wall according to claim 6, characterized in that, The sandwich insulation wall panel is installed on the building frame (8), and the top and bottom of the building frame (8) adopt an inward structure.