Vacuum insulation panel modular low-thermal-bridge external wall insulation system

By using a modular construction method with GFRP orthogonal keel units and corner connection components, the problems of thermal bridging and low construction efficiency in the construction of vacuum insulation panels are solved, and efficient and safe installation of external wall insulation systems is achieved.

CN224395810UActive Publication Date: 2026-06-23HEILONGJIANG PROVINCIAL CONSTR ENG GRP CO +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG PROVINCIAL CONSTR ENG GRP CO
Filing Date
2025-06-20
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing vacuum insulation panels are prone to thermal bridging due to gaps between panels during construction, resulting in reduced insulation performance. They are also inefficient to install and easily damaged. Traditional manual installation of each panel results in poor construction quality.

Method used

The orthogonal keel unit components and corner connection components made of GFRP form a composite force transmission mechanism through mortise and tenon joints and bolt anchoring. Combined with modular construction methods, this achieves effective sealing of gaps between panels and overall assembly installation.

Benefits of technology

It effectively avoids the thermal bridging effect, improves the overall thermal insulation performance and construction precision of the exterior wall, increases construction efficiency, and reduces the risks of high-altitude operations and material waste.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a kind of low thermal-bridge outer wall thermal insulation systems of vacuum insulation board modularization, it is related to wall body external thermal insulation technical field, solve the problem that the existing vacuum insulation board is easily caused thermal bridge effect due to the gap between thermal insulation wall body board, and then lead to the problem of reduced thermal insulation performance.The present application comprises plain concrete wallboard, adhesive layer, vacuum insulation board, orthogonal keel unit assembly, corner connecting assembly and plastering layer, plain concrete wallboard is connected with vacuum insulation board, orthogonal keel unit assembly through adhesive layer;Vacuum insulation board is located in the frame formed by the interarray connection of orthogonal keel unit assembly;Corner connecting assembly is connected in the corner of orthogonal keel unit assembly;Plastering layer is located in vacuum insulation board and the outside of orthogonal keel unit assembly.The orthogonal keel unit assembly and corner connecting assembly of the utility model realize three-dimensional stress system by collaborative assembly, effectively improve the stress distribution characteristics of traditional installation frame, further improve structural safety redundancy.
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Description

Technical Field

[0001] This utility model belongs to the field of external wall insulation technology, and relates to the structure of an ultra-low energy consumption residential external wall insulation system, particularly to a low thermal bridge external wall insulation system with modular vacuum insulation panels. Background Technology

[0002] Ultra-low energy buildings are a new type of building that significantly reduces energy consumption for heating, cooling, and lighting through passive design strategies, such as optimizing the building envelope and insulation structure, and enhancing natural lighting and ventilation. Simultaneously, they improve indoor environmental comfort through efficient energy systems. These buildings possess multiple advantages and are gradually becoming a new direction for technological development in the field of building energy conservation. However, the promotion of ultra-low energy buildings in my country still faces technical bottlenecks. Existing traditional external insulation systems, such as rock wool or polystyrene board combined with plastering, can meet basic insulation requirements, but they struggle to address core requirements such as avoiding excessive insulation layer thickness and ensuring reliable connection between the insulation layer and the structure.

[0003] Finding insulation materials with superior thermal conductivity and lighter weight is key to achieving ultra-low energy consumption in buildings. Vacuum insulation panels, as a new type of insulation material, are gradually gaining favor among engineers and designers due to their extremely low thermal conductivity and lightweight nature. However, in actual construction, limitations in manufacturing precision make it difficult to perfectly align the panels during assembly, creating gaps that can lead to thermal bridging and significantly reduce the overall insulation performance of the wall. Furthermore, current processes rely on manual installation of each panel, resulting in low construction efficiency. Additionally, the poor impact resistance of the panels makes them prone to core material damage or vacuum layer leakage during installation, causing localized insulation failure. Utility Model Content

[0004] In view of this, the present invention aims to propose a modular vacuum insulation panel low thermal bridge external wall insulation system and its construction method, so as to solve the problem that the existing vacuum insulation panels are prone to thermal bridging effect caused by gaps between insulation wall panels, which leads to a reduction in insulation performance.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a modular low thermal bridge external wall insulation system with vacuum insulation panels, comprising a plain concrete wall panel, an adhesive layer, a vacuum insulation panel, orthogonal keel unit components, corner connecting components, and a finishing layer. The plain concrete wall panel is connected to the vacuum insulation panel and the orthogonal keel unit components through the adhesive layer; the vacuum insulation panel is located in a frame formed by the mutual array connection of the orthogonal keel unit components; the corner connecting components are connected at the front and rear of the cross intersection of the orthogonal keel unit components; and the finishing layer is located on the outside of the vacuum insulation panel and the orthogonal keel unit components.

[0006] Furthermore, the orthogonal keel unit assembly includes a horizontal keel unit and a vertical keel unit, both of which are provided with several splicing tenons, several splicing grooves and several limiting grooves at both ends, with the splicing tenons and splicing grooves corresponding in size and position; through semi-circular holes are opened at both ends of the horizontal keel unit.

[0007] Furthermore, the corner connection assembly includes a connector, a limiting washer, and a limiting bolt. The limiting washer and the limiting bolt are fixed to the connector by the limiting bolt. A limiting tenon is provided on the inner side of the connector, and its size and position correspond to the limiting groove.

[0008] Furthermore, the connector is square and is composed of four triangular corner connectors. Each corner connector has an arc-shaped notch at its central corner. The four corner connectors are combined to form a through hole by splicing the arc-shaped notches.

[0009] Furthermore, the outer side of the corner connector is provided with several connecting grooves, and the inner side of the limiting pad is provided with several connecting tenons, the connecting tenons correspond to the connecting grooves, and a round hole is provided in the center.

[0010] Furthermore, the adhesive layer and the plastering layer are made of polystyrene granule thermal insulation mortar.

[0011] Furthermore, both the orthogonal keel unit assembly and the corner connection assembly are made of fiberglass reinforced plastic (GFRP).

[0012] Compared with existing technologies, the beneficial effects of the modular vacuum insulation panel low thermal bridge external wall insulation system and its construction method described in this utility model are:

[0013] 1. The orthogonal keel unit component and corner connection component made of GFRP in this utility model effectively solve the problem of thermal bridging effect caused by gaps between boards, which reduces the overall thermal insulation performance of the wall, and provides structural protection for improving the overall thermal insulation performance of the exterior wall.

[0014] 2. The orthogonal keel unit assembly and corner connection assembly described in this utility model achieve a three-dimensional force-bearing system through coordinated assembly. A mortise and tenon joint structure is set between the horizontal and vertical keel units to achieve in-plane force transmission. Combined with the pressure-bearing capacity of the corner connection and bolt anchoring, a composite force transmission mechanism is formed, effectively improving the stress distribution characteristics of traditional installation frames and further enhancing structural safety redundancy.

[0015] 3. This utility model enables the prefabricated unitized insulation system in the factory or on the construction site to achieve overall assembly installation, breaking through the traditional manual piece-by-piece pasting construction process, greatly improving the installation accuracy of the external insulation system, effectively improving construction efficiency and assembly degree, significantly shortening the construction cycle and reducing the risk of high-altitude operations. Attached Figure Description

[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0017] Figure 1 This is an overall schematic diagram of a modular low thermal bridge external wall insulation system for vacuum insulation panels according to this utility model.

[0018] Figure 2 This is a cross-sectional structural diagram of a modular low thermal bridge external wall insulation system for vacuum insulation panels according to the present invention.

[0019] Figure 3 This is a schematic diagram of the orthogonal keel unit component structure of a modular low thermal bridge external wall insulation system for vacuum insulation panels according to this utility model.

[0020] Figure 4 This is a front view of the orthogonal keel unit component structure of a modular low thermal bridge external wall insulation system for vacuum insulation panels according to this utility model.

[0021] Figure 5 This is a schematic diagram of the corner connection component structure of a modular low thermal bridge external wall insulation system for vacuum insulation panels according to the present invention.

[0022] In the diagram: 1-plain concrete wall panel, 2-adhesive layer, 3-vacuum insulation board, 4-orthogonal keel unit assembly, 5-corner connection assembly, 6-plaster layer, 4-1-horizontal keel unit, 4-2-vertical keel unit, 4-3-splitting tenon, 4-4-splitting groove, 4-5-limiting groove, 4-6-through semi-circular hole, 5-1-corner connector, 5-2-limiting washer, 5-3-limiting bolt, 5-4-limiting tenon, 5-5-through circular hole, 5-6-connecting groove, 5-7-connecting tenon, 5-8-center circular hole of limiting washer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0024] See Figure 1-5This embodiment describes a modular low-thermal-bridge exterior wall insulation system using vacuum insulation panels, comprising a plain concrete wall panel 1, an adhesive layer 2, a vacuum insulation panel 3, orthogonal keel unit components 4, corner connection components 5, and a finishing layer 6. The plain concrete wall panel 1 is connected to the vacuum insulation panel 3 and the orthogonal keel unit components 4 via the adhesive layer 2. The vacuum insulation panel 3 is located within a frame formed by the interconnected array of the orthogonal keel unit components 4. The corner connection components 5 are connected at the cross intersections of the orthogonal keel unit components 4. The finishing layer 6 is located on the outside of the vacuum insulation panel 3 and the orthogonal keel unit components 4.

[0025] The orthogonal keel unit assembly 4 includes a horizontal keel unit 4-1 and a vertical keel unit 4-2. Both ends are provided with several splicing tenons 4-3, several splicing grooves 4-4 and several limiting grooves 4-5. The splicing tenons 4-3 and the splicing grooves 4-4 correspond in size and position. The horizontal keel unit 4-1 has through semi-circular holes 4-6 at both ends. The orthogonal keel unit assembly 4 can be prefabricated in batches according to the specific size of the insulation material, which is convenient for modular construction.

[0026] The corner-wrap connecting assembly 5 includes several corner-wrap connectors 5-1, limiting gaskets 5-2, and limiting bolts 5-3. A limiting tenon 5-4 is provided on the inner side of the corner-wrap connector 5-1, and its size and position correspond to the limiting groove 4-5. An arc-shaped notch is provided at the corner. Several corner-wrap connectors are combined to splice the arc-shaped notch to form a through circular hole 5-5.

[0027] The corner connector 5-1 has several connecting grooves 5-6 on its outer side, several connecting tenons 5-7 on its inner side, and a round hole 5-8 in its center. The connecting grooves 5-6 and the connecting tenons 5-7 correspond in size and position. The corner connector 5 makes the insulation system a whole, avoiding the inefficiency and damage to the boards caused by manual installation piece by piece.

[0028] The bonding layer 2 and the plastering layer 6 are made of polystyrene granule thermal insulation mortar with adhesive powder, and the reinforcing material is fiberglass mesh.

[0029] Both the orthogonal keel unit component 4 and the corner connection component 5 are made of GFRP material, which has an extremely low thermal conductivity and can effectively avoid the generation of thermal bridges.

[0030] A construction method for a modular vacuum insulation panel low thermal bridge external wall insulation system specifically includes the following steps:

[0031] (1) First, according to the specific construction plan, pour plain concrete wall panels 1 of the required size in the factory or construction site, and cure them into shape;

[0032] (2) Assemble the orthogonal keel unit components 4 into an array to the size required by the construction plan, and install corner connectors 5-1 on one side in advance for temporary fixation of the keel;

[0033] (3) Place the vacuum insulation board 3 into the frame formed by splicing the orthogonal keel unit components 4 and fill the gaps with expanding foam;

[0034] (4) Install the corner connector 5-1 on the other side to form an overall frame, then install the limiting gasket 5-2 on the outside of the corner connector 5-1 on both sides, and finally pass the limiting bolt 5-3 through each reserved hole and connect and fix it with the nut.

[0035] (5) The overall keel frame of the above-mentioned built-in vacuum insulation board 3 is bonded and fixed to the cured plain concrete wall panel 1 through the adhesive layer 2;

[0036] (6) Apply the finishing layer 6 evenly to the outer layer of the insulation layer;

[0037] (7) Overall maintenance and quality inspection, the construction is now complete.

[0038] The aforementioned non-contact construction process significantly reduces the possibility of damage to the vacuum insulation panels caused by manual operation during construction, effectively controls the breakage rate of the panels during construction, reduces material waste, and improves the economic benefits of the project.

[0039] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A modular vacuum insulation panel low thermal bridge external wall insulation system, characterized in that: The system includes a plain concrete wall panel (1), an adhesive layer (2), a vacuum insulation panel (3), an orthogonal keel unit assembly (4), a corner connection assembly (5), and a finishing layer (6). The plain concrete wall panel (1) is connected to the vacuum insulation panel (3) and the orthogonal keel unit assembly (4) through the adhesive layer (2). The vacuum insulation panel (3) is located in the frame formed by the orthogonal keel unit assembly (4) arranged in an array. The corner connection assembly (5) is connected at the front and back of the cross intersection of the orthogonal keel unit assembly (4). The finishing layer (6) is located on the outside of the vacuum insulation panel (3) and the orthogonal keel unit assembly (4).

2. The modular low thermal bridge external wall insulation system with vacuum insulation panels according to claim 1, characterized in that: The orthogonal keel unit assembly (4) includes a horizontal keel unit (4-1) and a vertical keel unit (4-2). Both ends of the two units are provided with several splicing tenons (4-3), several splicing grooves (4-4) and several limiting grooves (4-5). The splicing tenons (4-3) and the splicing grooves (4-4) correspond in size and position. The horizontal keel unit (4-1) has through semi-circular holes (4-6) at both ends.

3. The modular low thermal bridge external wall insulation system with vacuum insulation panels according to claim 2, characterized in that: The corner connection assembly (5) includes a connector, a limiting washer (5-2) and a limiting bolt (5-3). The limiting washer (5-2) is fixed to the connector by the limiting bolt (5-3). A limiting tenon (5-4) is provided on the inner side of the connector, and its size and position correspond to the limiting groove (4-5).

4. The modular low thermal bridge external wall insulation system with vacuum insulation panels according to claim 3, characterized in that: The connector is square and is composed of four triangular corner connectors (5-1). Each corner connector (5-1) has an arc-shaped notch at the center corner. The four corner connectors (5-1) are combined to form a through hole (5-5) by splicing the arc-shaped notches together.

5. The modular low thermal bridge external wall insulation system with vacuum insulation panels according to claim 4, characterized in that: The corner connector (5-1) has several connecting grooves (5-6) on its outer side, several connecting tenons (5-7) on its inner side, and a round hole (5-8) in its center. The connecting grooves (5-6) and the connecting tenons (5-7) correspond in size and position.

6. The modular low thermal bridge external wall insulation system with vacuum insulation panels according to claim 1, characterized in that: The bonding layer (2) and the plastering layer (6) are made of polystyrene granule thermal insulation mortar.

7. The modular low thermal bridge external wall insulation system of vacuum insulation panels according to claim 1, characterized in that: Both the orthogonal keel unit component (4) and the corner connection component (5) are made of fiberglass.