Vacuum insulation anchoring system with breathing micro-channel and cap broken bridge structure and construction method

Abstract

The invention discloses a vacuum heat insulation anchoring system with a breathing micro-channel and a cap broken bridge structure and a construction method, and relates to the technical field of building energy conservation and outer wall heat preservation, in particular to the vacuum heat insulation anchoring system with the breathing micro-channel and the cap broken bridge structure and the construction method. The device comprises a vacuum heat insulation unit, an anchoring assembly and an edge broken bridge heat insulation strip. The vacuum heat insulation unit is a vacuum heat insulation plate, and packaging flange edges extending outwards are arranged on the periphery of the vacuum heat insulation unit. The anchoring assemblies are arranged at the abutted seams between the adjacent vacuum heat insulation units and used for pressing and fixing the packaging flange edges. The edge broken bridge heat insulation strip is arranged on the outer side of the packaging flange edge and the outer side of the anchoring assembly and covers the packaging flange edge and the anchoring assembly. The back face of the vacuum heat insulation unit is of a flat structure, and a micro-gap cavity ranging from 3 mm to 5 mm is formed between the vacuum heat insulation unit and the base layer wall by means of the thickness of the structural adhesive. The anchoring assemblies are arranged at the abutted seams of the vacuum heat insulation units, the outer sides of the anchoring assemblies are covered with the edge broken bridge heat insulation strips, meanwhile, the moisture removal micro-gap cavities are formed through the structural adhesive, it is guaranteed that the vacuum heat insulation plates are reliably fixed, meanwhile, an anchoring heat bridge is effectively blocked, and moisture removal of the wall is achieved; therefore, the overall heat insulation performance and the use reliability of the external wall insulation system are improved.

Description

Technical Field

[0001] This invention relates to the field of building energy conservation and external wall insulation technology, specifically to a vacuum insulation anchoring system and construction method with a breathing microchannel and cap thermal break structure. Background Technology

[0002] With the continuous improvement of building energy efficiency standards, the thermal insulation performance of building envelopes has become a crucial factor affecting building energy consumption. Traditional exterior wall insulation materials such as polystyrene boards, extruded polystyrene boards, and rock wool boards, while widely used, have relatively high thermal conductivity, limiting their ability to meet the insulation requirements of ultra-low energy consumption or near-zero energy consumption buildings. Vacuum insulation panels (VIPs), due to their high vacuum state, have a much lower thermal conductivity than traditional insulation materials, exhibiting excellent thermal insulation performance and thus being increasingly used in building exterior wall insulation systems. However, in practical engineering applications, some technical challenges remain regarding the installation, fixing, and system construction of VIPs. In existing technologies, VIPs are typically installed on the building's exterior wall substrate using adhesive or mechanical anchoring methods. Since the encapsulation structure of VIPs is generally a metal film or composite barrier film structure, sealing flanges are usually present around the perimeter of the panels. When using mechanical anchoring structures to fix the panels, the anchors and the sealing flange edges are prone to forming local thermal bridges, which reduces the overall thermal insulation performance of the insulation system. At the same time, traditional VIP panels cannot be cut and processed on-site, otherwise they will leak and fail.

[0003] Furthermore, to ensure secure installation, some installation methods employ a through-anchoring structure, where anchors directly penetrate the insulation layer and connect to the wall. While this method improves fixing strength, it creates significant thermal bridges at the anchoring points, negatively impacting the overall thermal performance of the insulation system. On the other hand, because the outer surface of vacuum insulation panels is typically encapsulated with a high-barrier film, its air permeability is low. When the panels are directly adhered to the wall surface using a full-adhesion method, water vapor generated inside the wall cannot easily escape through the insulation layer, leading to condensation between the wall and the insulation layer, potentially causing dampness and mold growth. Additionally, at irregular corners, such as inside and outside corners and window openings in building wall A, vacuum insulation panels cannot usually be cut and processed on-site due to structural limitations, making it difficult to completely cover these areas with standard panels and easily creating localized thermal bridges. Summary of the Invention

[0004] The purpose of this invention is to address the deficiencies and shortcomings of existing technologies by providing a vacuum insulation anchoring system and construction method with a breathing microchannel and cap thermal break structure. This system involves setting anchoring components at the joints of vacuum insulation units and covering their outer sides with edge thermal break insulation strips. Simultaneously, structural adhesive is used to form moisture-venting micro-gap cavities. This ensures reliable fixation of the vacuum insulation panel while effectively blocking anchoring thermal bridges and achieving wall moisture venting, thereby improving the overall insulation performance and reliability of the external wall insulation system.

[0005] To achieve the above objectives, a vacuum insulation anchoring system with a breathing microchannel and a cap-shaped thermal break structure is provided. It includes a vacuum insulation unit 10, an anchoring assembly 20, and an edge thermal break insulation strip 30. The vacuum insulation unit 10 is a vacuum insulation panel, and an outwardly extending encapsulation flange edge 101 is provided around the perimeter of the vacuum insulation unit 10. The anchoring assembly 20 is located at the joint between adjacent vacuum insulation units 10 and is used to press and fix the encapsulation flange edge. The edge thermal break insulation strip 30 is located outside and covers the encapsulation flange edge 101 and the anchoring assembly 20, so that the encapsulation flange edge and the anchoring assembly are encased inside the insulation layer, thereby blocking thermal bridges.

[0006] Furthermore, the back of the vacuum insulation unit 10 is a flat structure. The vacuum insulation unit 10 is bonded to the base wall via structural adhesive dots or strips, and the thickness of the structural adhesive creates a 3mm-5mm micro-gap cavity between the vacuum insulation unit and the base wall. This gap serves as a channel for water vapor to escape from the wall. Under the combined action of the anchor locking stress and the cured thickness of the structural adhesive, the 3-5mm micro-gap cavity naturally expands.

[0007] Furthermore, the anchoring assembly 20 includes a cross-shaped heat-insulating pressure plate 201 and fastening bolts 202, wherein the four-wing structure of the cross-shaped heat-insulating pressure plate 201 presses against the encapsulation flange edge of the adjacent vacuum insulation unit 10.

[0008] Furthermore, the heat-insulating pressure plate 201 has a cross-shaped structure and is made of low thermal conductivity material or heat-insulating material.

[0009] Furthermore, the edge thermal break insulation strip 30 is made of aerogel coating or flexible felt material, and its cross-section is rectangular, square or L-shaped. After installation, the edge thermal break insulation strip 30 is in a state of mutual compression and mating to tightly seal the gaps around the plate and fundamentally block the macroscopic cold air convection.

[0010] Furthermore, the anchoring component 20 is made of glass fiber reinforced polymer material with a thermal conductivity ≤0.3W / (m·K).

[0011] Furthermore, a vacuum insulation anchoring system with a breathing microchannel and a cap-shaped thermal break structure further includes a node-filling insulation material. The node-filling insulation material is set at the inside corner, outside corner, or window opening of the building wall A to fill areas that cannot be covered by the standard vacuum insulation unit, and together with the edge thermal break insulation strip and the vacuum insulation unit, forms a continuous insulation layer.

[0012] Furthermore, at the window corners, internal and external corners, or irregular joints of building wall A, joint filling insulation material is installed. This joint filling insulation material is either aerogel insulation coating or flexible aerogel felt. It is used to fill areas that cannot be covered by standard insulation panels.

[0013] A construction method for a vacuum insulation anchoring system, the specific construction method including: S1. Apply structural adhesive dots or strips to the back of the vacuum insulation unit. The structural adhesive dots are arranged in a matrix with a spacing of 200-400mm and a diameter of 20-40mm. S2. Attach the vacuum insulation unit to the building wall A; S3. Install anchoring components at the joints of adjacent vacuum insulation units to tighten the sealing flange edges; S4. Cover and adhere edge thermal break insulation strips above the sealing flange edge and anchoring components; S5. The joint area is filled with thermal insulation material to form a continuous thermally broken structure.

[0014] The working principle of this invention is as follows: In practical applications, multiple vacuum insulation units 10 are first laid out on the outside of building wall A according to a predetermined layout. The vacuum insulation unit 10 is a vacuum insulation panel structure, with outwardly extending encapsulation flange edges 101 around its perimeter, and a splicing structure is formed between adjacent vacuum insulation units 10.

[0015] During installation, structural adhesive dots or strips are applied to the back of the vacuum insulation unit 10 to bond and fix it to the building wall A. Due to the thickness of the structural adhesive, a 3mm-5mm micro-gap cavity is formed between the vacuum insulation unit 10 and the building wall A. This micro-gap cavity forms a connected structure along the back of the panel, thus creating a moisture-removing channel for water vapor inside the wall. This allows water vapor generated inside the wall to diffuse and escape through the micro-gap cavity, preventing condensation inside the wall. Subsequently, anchoring components 20 are installed at the joints of adjacent vacuum insulation units 10. The cross-shaped insulation pressure plate 201 is fixed to the building wall A using fastening bolts 202. The four-wing structure of the cross-shaped insulation pressure plate 201 presses against the encapsulation flange edge 101 of the adjacent vacuum insulation unit 10, thereby achieving mechanical anchoring and fixing of the vacuum insulation unit 10 and improving the structural stability of the entire insulation system.

[0016] After mechanical anchoring is completed, an edge thermal break insulation strip 30 is installed on the outside of the encapsulated flange edge 101 and the anchoring assembly 20. The edge thermal break insulation strip 30 covers the encapsulated flange edge 101 and the anchoring assembly 20, so that the encapsulated flange edge 101 and the anchoring assembly 20 are completely covered inside the insulation layer, thereby blocking the thermal bridge conduction path formed by the encapsulated flange edge and the anchoring assembly. At irregular nodes such as the inside corners, outside corners, or window openings of the building wall A, node filling insulation material is installed to fill the nodes. The node filling insulation material, together with the vacuum insulation unit 10 and the edge thermal break insulation strip 30, forms a continuous insulation layer structure, thereby ensuring the integrity and continuity of the entire external wall insulation system.

[0017] Through the synergistic effect of the above structures, the present invention can not only achieve reliable anchoring and fixing of the vacuum insulation panel, but also effectively eliminate thermal bridges formed at the anchoring position, while forming a moisture desiccation microchannel, thereby improving the overall performance of the external wall insulation system.

[0018] After adopting the above technical solution, the beneficial effects of the present invention are as follows: 1. This invention achieves stable mechanical fixation of the vacuum insulation panel by setting anchoring components at the joints of adjacent vacuum insulation units and using a cross-shaped heat-insulating pressure plate to press the sealing flange edge, thereby improving the structural stability and wind pressure resistance of the entire insulation system.

[0019] 2. The present invention provides edge thermal break insulation strips on the outside of the encapsulation flange edge and the anchoring assembly, so that the encapsulation flange edge and the anchoring assembly are covered inside the insulation layer, thereby effectively blocking the thermal bridge path formed by the metal encapsulation edge and the anchor, and significantly improving the overall thermal insulation performance of the external wall insulation system.

[0020] 3. This invention creates a 3mm to 5mm micro-gap cavity between the vacuum insulation unit and the building wall A by setting structural adhesive dots on the back of the vacuum insulation unit. This micro-gap cavity can serve as a moisture venting channel for water vapor in the wall, thereby effectively solving the technical problem that water vapor inside the wall cannot be vented when the traditional vacuum insulation panel is fully bonded, and reducing the risk of condensation and mold growth on the wall.

[0021] 4. By installing insulation material at irregularly shaped nodes such as wall corners, external corners, or window openings, areas that cannot be covered by standard vacuum insulation units are effectively filled, thereby forming a continuous insulation layer structure, further reducing thermal bridges and improving the overall energy-saving effect of the building.

[0022] In summary, this invention not only effectively solves the problem of anchoring thermal bridges in the installation process of traditional vacuum insulation panels, but also takes into account the wall's dehumidification requirements and improves construction adaptability, thus having good engineering application value. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the installation structure of the present invention; Figure 2 yes Figure 1 The left view; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 yes Figure 3 The left view; Figure 5 This is a cross-sectional view of the edge thermal break insulation strip 30 in this invention; Figure 6 yes Figure 1 Axonometric drawing.

[0025] Explanation of reference numerals in the attached drawings: Vacuum insulation unit 10, anchoring assembly 20, edge thermal break insulation strip 30, encapsulation flange edge 101, cross-shaped thermal insulation pressure plate 201. Detailed Implementation

[0026] See Figure 1-6 As shown, the technical solution adopted in this specific embodiment is as follows: it includes a building wall A, a vacuum insulation unit 10, an anchoring component 20, and an edge thermal break insulation strip 30.

[0027] The vacuum insulation unit 10 is a vacuum insulation panel structure, with a vacuum insulation core material inside and a barrier encapsulation structure for sealing on the outside. The vacuum insulation unit 10 has outwardly extending encapsulation flange edges 101 around its perimeter, which are used to form a connection and compression fixing structure between adjacent panels.

[0028] During installation, multiple vacuum insulation units 10 are arranged in a predetermined pattern on the outside of building wall A, forming a joint structure between adjacent vacuum insulation units 10. Structural adhesive dots or strips are applied to the back of each vacuum insulation unit 10 to bond and fix it to the surface of building wall A. The structural adhesive can be polyurethane structural adhesive or silicone structural adhesive.

[0029] Because the structural adhesive has a certain thickness, a micro-gap cavity is formed between the vacuum insulation unit 10 and the building wall A. The thickness of this micro-gap cavity is preferably 4 mm, and it forms a connecting space along the back of the board. This micro-gap cavity can serve as a dehumidification channel for water vapor inside the wall, allowing water vapor inside the wall to diffuse outward through this channel, thereby preventing water vapor retention and condensation inside the wall.

[0030] Anchoring components 20 are installed at the joints of adjacent vacuum insulation units 10 to mechanically fix the vacuum insulation units 10. The anchoring components 20 include a cross-shaped heat-insulating pressure plate 201 and fastening bolts 202. The fastening bolts 202 pass through the cross-shaped heat-insulating pressure plate 201 and are fixed to the building wall A. The cross-shaped heat-insulating pressure plate 201 has a four-wing structure extending in all directions. After the anchoring components 20 are installed, the four wings of the cross-shaped heat-insulating pressure plate 201 press against the sealing flange edges 101 of adjacent vacuum insulation units 10, thereby achieving a fixed connection between adjacent vacuum insulation units 10.

[0031] Preferably, the cross-shaped heat-insulating pressure plate 201 has a cross-shaped structure and is made of low thermal conductivity material or heat-insulating material.

[0032] After the installation of the anchoring assembly 20 is completed, an edge thermal break insulation strip 30 is installed on the outer side of the encapsulation flange edge 101 and the anchoring assembly 20. The edge thermal break insulation strip 30 covers the encapsulation flange edge 101 and the anchoring assembly 20, so that the encapsulation flange edge 101 and the anchoring assembly 20 are completely covered inside the insulation layer. The anchoring assembly 20 is made of glass fiber reinforced polymer material to reduce the thermal bridging effect generated by the anchoring assembly, and its thermal conductivity is ≤0.3 W / (m·K).

[0033] The edge thermal break insulation strip 30 is made of aerogel coating or flexible felt material, and its cross-section is rectangular, square, or L-shaped. By setting the edge thermal break insulation strip 30, the metal encapsulation edge and anchoring components are not directly exposed to the outside of the insulation layer, thereby blocking the thermal bridge conduction path formed by the encapsulation flange edge 101 and the anchoring components 20, and improving the thermal insulation performance of the entire insulation system.

[0034] Furthermore, at the internal and external corners, window openings, or other irregularly shaped nodes of building wall A, where standard-sized vacuum insulation units 10 cannot completely cover the area, node-filling insulation material can be used to fill the area. This node-filling insulation material can be aerogel insulation coating or flexible aerogel felt. By filling the node areas, it forms a continuous insulation layer structure together with the vacuum insulation unit 10 and the edge thermal break insulation strip 30, thereby avoiding thermal bridging at the node locations.

[0035] Through the above structural design, this invention ensures reliable fixation of the vacuum insulation panel while effectively blocking thermal bridges at the anchoring points by covering the sealing flange edge and anchoring components with edge thermal break insulation strips. Simultaneously, the micro-gap cavities formed by the structural adhesive provide a dehumidification channel for water vapor inside the wall, thereby achieving a synergistic effect of thermal insulation and dehumidification, improving the overall performance and long-term stability of the building's external wall insulation system.

[0036] A construction method for a vacuum insulation anchoring system includes the following steps: S1. Applying structural adhesive dots or strips to the back of the vacuum insulation unit, with the adhesive dots arranged in a matrix, spaced 200-400mm apart, and having a dot diameter of 20-40mm; S2. Attaching the vacuum insulation unit to the building wall A; S3. Installing anchoring components at the joints of adjacent vacuum insulation units to tighten the sealing flange edge; S4. Covering and pasting edge thermal break insulation strips over the sealing flange edge and the anchoring components; S5. Filling the joint area with insulation material to form a continuous thermal break insulation structure.

[0037] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A vacuum-insulated anchoring system with a breathing microchannel and a cap-shaped thermal break structure, characterized in that: It includes a vacuum insulation unit (10), an anchoring assembly (20), and an edge thermal break insulation strip (30); the vacuum insulation unit (10) is a vacuum insulation panel, and the vacuum insulation unit (10) is provided with an outwardly extending encapsulation flange edge (101) around its perimeter; the anchoring assembly (20) is set at the joint between adjacent vacuum insulation units (10) to press and fix the encapsulation flange edge; the edge thermal break insulation strip (30) is set on the outside of the encapsulation flange edge (101) and the anchoring assembly (20) and covers them, so that the encapsulation flange edge and the anchoring assembly are covered inside the insulation layer, thereby blocking the thermal bridge.

2. The vacuum insulation anchoring system with a breathing microchannel and a cap-shaped thermal break structure according to claim 1, characterized in that: The back of the vacuum insulation unit (10) is flat. The vacuum insulation unit (10) is bonded to the base wall by structural adhesive dots or strips, and a micro-gap cavity of (3) mm to (5) mm is formed between the vacuum insulation unit and the base wall by the thickness of the structural adhesive.

3. The vacuum insulation anchoring system with a breathing microchannel and a cap-shaped thermal break structure according to claim 1, characterized in that: The anchoring assembly (20) includes a cross-shaped heat-insulating pressure plate (201) and fastening bolts (202), the four-wing structure of the cross-shaped heat-insulating pressure plate (201) pressing against the encapsulation flange edge of the adjacent vacuum insulation unit (10).

4. The vacuum insulation anchoring system with a breathing microchannel and a cap-shaped thermal break structure according to claim 1, characterized in that: The heat-insulating pressure plate (201) has a cross-shaped structure and is made of low thermal conductivity material or heat-insulating material.

5. The vacuum insulation anchoring system with a breathing microchannel and a cap-shaped thermal break structure according to claim 1, characterized in that: The edge thermal break insulation strip (30) is made of aerogel coating or flexible felt material, and its cross-section is rectangular, square or L-shaped. After installation, the edge thermal break insulation strip (30) is in a state of mutual compression and mating to tightly seal the gap around the plate and fundamentally block the macroscopic cold air convection.

6. The vacuum insulation anchoring system with a breathing microchannel and a cap-shaped thermal break structure according to claim 1, characterized in that: The anchoring component (20) is made of glass fiber reinforced polymer material.

7. The vacuum insulation anchoring system with a breathing microchannel and a cap-shaped thermal break structure according to claim 1, characterized in that: It also includes node-filling insulation material, which is set at the inside corner, outside corner or window opening of the building wall (A) to fill the area that the standard vacuum insulation unit cannot cover, and together with the edge thermal break insulation strip and the vacuum insulation unit, forms a continuous insulation layer.

8. A construction method for a vacuum insulation anchoring system, characterized in that... Construction methods include: S1. Apply structural adhesive dots or strips to the back of the vacuum insulation unit. The structural adhesive dots are arranged in a matrix with a spacing of 200-400mm and a diameter of 20-40mm. S2. The vacuum insulation unit is attached to the building wall (A); S3. Install anchoring components at the joints of adjacent vacuum insulation units to tighten the sealing flange edges; S4. Cover and adhere edge thermal break insulation strips above the sealing flange edge and anchoring components; S5. The joint area is filled with thermal insulation material to form a continuous thermally broken structure.

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