Vacuum insulation panel protected by a cementitious grid-coated mat
By bonding cement mesh coated felt to both sides of the vacuum insulation board and filling it with cured filler, the problems of easy damage to the composite gas barrier membrane and deformation of the fiber material are solved, thereby improving the puncture resistance and edge smoothness and facilitating construction.
Patent Information
- Application Number
- CN202521772820.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-20
AI Technical Summary
The composite air barrier membrane of vacuum insulation panels is easily damaged, allowing air to enter and affecting the insulation effect. In addition, the large deformation of the fiber material results in poor edge flatness, large processing dimensional errors, and difficulty in alignment and installation.
Cement grid coated felt is bonded to both sides of the vacuum insulation board, and the edges are filled with cured filler to form a groove structure to improve puncture resistance and edge smoothness.
It enhances the puncture resistance and edge smoothness of the vacuum insulation panel, improves the dimensional accuracy of processing, and facilitates construction.
Smart Images

Figure CN224678905U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal insulation materials technology, specifically to a vacuum insulation board protected by a cement grid coated felt. Background Technology
[0002] Vacuum insulation panels are a commonly used material in building insulation. Installed on building surfaces, they provide thermal insulation. Vacuum insulation panels use a core material and a gas-absorbing agent as fillers, and a composite gas-barrier membrane as the covering material, manufactured through processes such as molding, sealing, and vacuuming. However, the composite gas-barrier membrane is easily damaged. When damaged, air enters the membrane, causing expansion and bulging, which can lead to the peeling of the building's wall finish and loss of insulation function. Furthermore, vacuum insulation panels use fiber materials as the core material. Fiber materials have a large deformation range, resulting in lower edge flatness after vacuuming. This leads to larger dimensional errors in the processing of the vacuum insulation panels, making alignment difficult during installation and causing large gaps between adjacent panels, affecting the thermal insulation effect. Therefore, a vacuum insulation panel with a cement-coated felt protective layer is needed to solve these problems. Utility Model Content
[0003] The purpose of this invention is to provide a vacuum insulation board protected by a cement grid coated felt, so as to solve the problems existing in the prior art mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A vacuum insulation panel protected by a cement grid coated felt includes a vacuum insulation panel, a cement grid coated felt, and a cured filler. The cement grid coated felt is glued to the upper and lower sides of the vacuum insulation panel, and the edges of the cement grid coated felt protrude from the sides of the vacuum insulation panel.
[0006] A groove structure is formed between the edges of the cement grid coating felt on the upper and lower sides of the vacuum insulation board. The groove structure is filled with a cured filler until it is flush with the edge of the cement grid coating felt.
[0007] Preferably, the vacuum insulation board and the cement grid coated felt are bonded together using a two-component adhesive.
[0008] Preferably, the cured filler is an organic or inorganic cementing material.
[0009] Preferably, the cement mesh coated felt is formed by coating the surface of the mesh cloth with cement slurry and then drying it.
[0010] Preferably, the edges of the cement grid coated felt protrude 5-20mm beyond the side of the vacuum insulation board.
[0011] Preferably, the vacuum insulation panel is made by vacuum sealing a core material covered with a high-barrier film.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention improves the puncture resistance of a vacuum insulation panel by bonding a cement grid coating felt to both sides of the panel and filling the perimeter with a cured filler. The design also results in smooth edges and higher dimensional accuracy of the vacuum insulation panel. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a cross-sectional structural diagram of the present invention.
[0016] Figure 3 This is a schematic diagram of the structure of the present invention with the upper cement grid coating felt removed.
[0017] In the diagram: 1. Vacuum insulation panel; 2. Cement grid coated felt; 3. Cured filler. Detailed Implementation
[0018] 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.
[0019] Please see Figure 1-3 The present invention provides the following technical solution:
[0020] A vacuum insulation panel protected by a cement grid coated felt includes a vacuum insulation panel 1, a cement grid coated felt 2, and a cured filler 3. The vacuum insulation panel 1 is made by vacuum sealing a core material covered with a high-barrier film. The core material is made of silicon dioxide or glass fiber. The high-barrier film includes an outer film, a middle film, and an inner film arranged sequentially from the outside to the inside. The outer film is made of nylon or PVC. The middle film is a composite of at least one of VMPET film, PVDC film, PVA film, PP film, and PVC film. The inner film is made of PE material.
[0021] The upper and lower sides of the vacuum insulation board 1 are bonded with cement mesh coated felt 2 by adhesive. The vacuum insulation board 1 and the cement mesh coated felt 2 are bonded together by a two-component adhesive. The two-component adhesive can be acrylic, epoxy, polyurethane or other adhesives, so that the two are firmly bonded.
[0022] The cement mesh coating felt 2 is formed by coating the surface of the mesh cloth with cement slurry and then drying it. The cement mesh coating felt 2 can not only play a role in preventing puncture and scratching of the vacuum insulation board 1, but also improve the surface adhesion of the vacuum insulation board 1, which facilitates subsequent construction on the surface of the vacuum insulation board 1.
[0023] The edges of the cement mesh coated felt 2 protrude 5-20mm from the sides of the vacuum insulation board 1 to provide adequate space for the curing filler 3 and ensure the stability of the edges of the vacuum insulation board 1. A groove structure is formed between the edges of the cement mesh coated felt 2 on both the upper and lower sides of the vacuum insulation board 1. The groove structure is filled with the curing filler 3 until it is flush with the edges of the cement mesh coated felt 2; the curing filler 3 is made of silicone sealant. After the silicone sealant fills the grooves between the edges of the cement mesh coated felt 2 on both the upper and lower sides of the vacuum insulation board 1, the sides of the vacuum insulation board 1 are flat, and the overall dimensions of the vacuum insulation board 1 are more precise, facilitating installation and application in environments with high dimensional accuracy requirements.
[0024] 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 vacuum insulation panel protected by a cement grid coated felt, characterized in that, It includes a vacuum insulation board (1), a cement grid coating felt (2) and a curing filler (3). The upper and lower sides of the vacuum insulation board (1) are glued with cement grid coating felt (2), and the edges of the cement grid coating felt (2) protrude from the sides of the vacuum insulation board (1). A groove structure is formed between the edges of the cement grid coating felt (2) on the upper and lower sides of the vacuum insulation board (1). The groove structure is filled with a cured filler (3) until it is flush with the edge of the cement grid coating felt (2).
2. The vacuum insulation board with cement mesh coated felt protection according to claim 1, characterized in that: The vacuum insulation board (1) and the cement grid coated felt (2) are bonded together using a two-component adhesive.
3. A vacuum insulation panel with cement mesh coated felt protection according to claim 1, characterized in that: The cured filler (3) is an organic or inorganic cementing material.
4. A vacuum insulation board with cement grid coated felt protection according to claim 2, characterized in that: The cement mesh coated felt (2) is formed by coating the surface of the mesh cloth with cement slurry and then drying it.
5. A vacuum insulation board with cement mesh coated felt protection according to claim 1, characterized in that: The edges of the cement grid coated felt (2) protrude 5-20mm from the side of the vacuum insulation board (1).
6. A vacuum insulation panel with cement mesh coated felt protection according to claim 1, characterized in that: The vacuum insulation panel (1) is made by vacuum sealing a core material covered with a high-barrier film.