Low-carbon energy-saving building wallboard
By setting vacuum grooves in building wall panels to form a vacuum insulation space, the heat conduction problem in existing technologies is solved, achieving efficient insulation and improved compressive strength, thus meeting the requirements of ultra-low energy consumption buildings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG KEFENG ARCHITECTURAL PLANNING & DESIGN RESEARCH CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-26
AI Technical Summary
The insulation layer of existing low-carbon energy-saving building wall panels has poor heat insulation effect due to air heat conduction in the microporous structure, which cannot meet the requirements of ultra-low energy consumption buildings.
The design incorporates interlocking panels with vacuum grooves between them, forming a vacuum insulation space through a vacuum valve assembly. The vacuum grooves and panel materials together form a composite insulation structure, blocking the heat conduction path.
It effectively blocks the heat conduction path, improves the building's thermal insulation performance, meets the ultra-low energy consumption building standard, and improves the compressive strength and airtightness of the panel through honeycomb groove arrangement and mechanical interlocking structure.
Smart Images
Figure CN224412940U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building wall panel technology, and in particular relates to a low-carbon and energy-saving building wall panel. Background Technology
[0002] Low-carbon buildings refer to buildings that reduce the use of fossil fuels, improve energy efficiency, and reduce carbon dioxide emissions throughout their entire lifecycle, from the manufacturing of building materials and equipment to construction and use. Thermal insulation performance is a crucial factor in evaluating the energy-saving effect of wall panels. Currently, energy conservation is generally achieved by installing insulation layers to control the transfer of heat between indoors and outdoors.
[0003] A search revealed Chinese patent CN 218668157 U, which discloses a low-carbon, energy-saving building wall panel, relating to the field of green building. The panel includes a wall panel body with a rectangular connecting frame fixed to its outer side. The rectangular connecting frame has a connecting structure, which includes a first insert strip, a second insert strip, a first limiting groove, and a connector. The wall panel body includes a sound insulation board, and sound insulation cotton, a thermal insulation layer, and a base material layer are symmetrically arranged on both sides of the sound insulation board. This invention solves the problems of poor energy-saving effect, inadequate sound insulation, and poor fire resistance caused by splicing gaps in existing low-carbon, energy-saving building wall panels through the design of the connecting structure, sound insulation cotton, thermal insulation layer, and sound insulation board.
[0004] However, when using existing technologies, although commonly used foamed insulation materials (such as polystyrene and polyurethane) have a microporous structure, air still remains in the micropores. Heat can be conducted through the air, leading to a decrease in insulation performance. For example, when the ambient temperature fluctuates, the thermal movement of air molecules inside the insulation layer can still create thermal bridges, making it difficult to further reduce the heat transfer coefficient of the wall panel and failing to meet the requirements of ultra-low energy consumption buildings. Utility Model Content
[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a low-carbon, energy-saving building wall panel that achieves the effect of forming a vacuum insulation space and effectively blocking the heat conduction path.
[0006] In view of this, the present invention provides a low-carbon and energy-saving building wall panel, comprising:
[0007] A pair of plates that fit together closely;
[0008] A plurality of vacuum grooves are provided on one side of the close contact surface of the plate, and the plurality of vacuum grooves are interconnected through pipe grooves.
[0009] When the plates are in close contact, the vacuum grooves form a vacuum insulation space.
[0010] An air extraction valve assembly is fixedly installed through one of the plates. The input end of the air extraction valve assembly is connected to one of the vacuum chambers to discharge the gas in the vacuum insulation space.
[0011] Furthermore, the vacuum valve assembly includes a cylinder body, which is fixedly connected to the corresponding vacuum groove through the corresponding plate. One end of the cylinder body located in the vacuum groove has a vacuum hole. A core rod is spirally connected inside the cylinder body. A first sealing element is provided at the end of the core rod near the vacuum groove to seal the vacuum hole. An outlet hole is provided at the end of the core rod away from the vacuum groove. A T-shaped hole is provided at the inner end of the outlet hole. The two ends of the T-shaped hole away from the outlet hole extend to the outer side of the core rod. A gap is provided between the outer side wall of the core rod and the inner side wall of the cylinder body.
[0012] Furthermore, a second sealing element is provided on the outer wall of the end of the core rod away from the vacuum groove, and the core rod is sealed to the inner wall of the cylinder through the second sealing element.
[0013] Furthermore, the air outlet is provided with internal threads for connecting the input end of the air extraction device.
[0014] Furthermore, the contact surface of the plate is provided with sealing grooves distributed circumferentially along the plate, and a third sealing element is movably disposed within the sealing grooves.
[0015] Furthermore, an embedding groove is provided on one side of the close contact surface of the plate, and an embedding block is provided on the other side of the close contact surface of the plate, and the embedding groove and the embedding block are adapted to each other.
[0016] Furthermore, both the embedding groove and the embedding block are provided with pointed ends.
[0017] Furthermore, the plate is locked by a movable through bolt and a nut, and the position of the bolt corresponds to the position of the embedding groove and the embedding block.
[0018] Furthermore, a torsion block is installed at the end of the core rod away from the vacuum groove, and the outer surface of the torsion block is roughened.
[0019] Furthermore, the plate body includes a substrate layer and an insulation layer connected in sequence, and the inner wall of the vacuum tank and the tube tank is provided with a vacuum forming layer.
[0020] The beneficial effects of this utility model are:
[0021] This invention utilizes a vacuum groove that, when two panels are in close contact, can connect to form a vacuum insulation space. The vacuum insulation space contains very few gas molecules, which can effectively block the heat conduction path. Compared with traditional foamed insulation materials, it can effectively reduce heat loss. Furthermore, the vacuum insulation space and the panel material form a composite insulation structure, meeting the standards for ultra-low energy consumption buildings. Attached Figure Description
[0022] Figure 1 This is a front sectional view of the present invention;
[0023] Figure 2 This is the utility model Figure 1 Enlarged view at point A;
[0024] Figure 3 This is a schematic diagram of the state of the core rod after it has been moved according to this utility model;
[0025] Figure 4 This is a three-dimensional schematic diagram of the plate body of this utility model;
[0026] Figure 5 This is a schematic diagram of the materials used to compose the plate body of this utility model;
[0027] The markings in the diagram are as follows:
[0028] 1. Plate body; 2. Sealing surface; 3. Vacuum groove; 4. Tube groove; 5. Vacuum insulation space; 6. Ejection valve assembly; 7. Cylinder body; 8. Ejection port; 9. Core rod; 10. First seal; 11. Second seal; 12. Third seal; 13. Vent; 14. T-hole; 15. Gap; 16. Internal thread; 17. Sealing groove; 18. Embedded groove; 19. Embedded block; 20. Tip; 21. Twist block; 22. Substrate layer; 23. Insulation layer; 24. Vacuum forming layer. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0030] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.
[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0033] like Figures 1-5 As shown, a low-carbon, energy-saving building wall panel includes:
[0034] A pair of interlocking and closely fitted plates 1;
[0035] A plurality of vacuum grooves 3 are provided on one side of the close contact surface 2 of the plate 1. The plurality of vacuum grooves 3 are connected to each other through tube grooves 4 and are arranged in a honeycomb pattern.
[0036] When the plate 1 is in close contact, the vacuum grooves 3 are connected to form a vacuum insulation space 5;
[0037] An air extraction valve assembly 6 is fixedly installed through one of the plates 1. The input end of the air extraction valve assembly 6 is connected to one of the vacuum tanks 3 to discharge the gas in the vacuum insulation space 5.
[0038] Compared to existing technologies, this application, through the setting of vacuum groove 3, can form a vacuum insulation space 5 when the two panels 1 are in close contact. When used with the air extraction valve assembly 6, it can be used with an external air extraction device to extract the gas in the vacuum insulation space 5. The gas molecules in the vacuum insulation space 5 are extremely few, which can effectively block the heat conduction path. Compared with traditional foam insulation materials, it can effectively reduce heat loss. The vacuum insulation space 5 and the material of the panel 1 form a composite insulation structure, which meets the ultra-low energy consumption building standard.
[0039] Meanwhile, the vacuum tanks 3 are arranged in a honeycomb pattern, and the tanks are connected by pipes 4 to form a mesh support, so that the plate 1 remains rigid under vacuum negative pressure and its compressive strength is improved.
[0040] As a preferred example of this application, the vacuum valve assembly 6 includes a cylinder 7, which is fixedly inserted through the corresponding plate 1 to the corresponding vacuum groove 3. One end of the cylinder 7 located within the vacuum groove 3 has a vacuum port 8. A core rod 9 is spirally connected inside the cylinder 7. A first sealing element 10, which is a rubber sealing ring, is provided at the end of the core rod 9 near the vacuum groove 3 to seal the vacuum port 8. An outlet port 13 is provided at the end of the core rod 9 away from the vacuum groove 3. The inner end of the core rod 9 is provided with a T-shaped hole 14. The two ends of the T-shaped hole 14 away from the air outlet 13 extend to the outer side of the core rod 9. A gap 15 is provided between the outer side wall of the core rod 9 and the inner side wall of the cylinder 7. The cylinder 7 passes through the plate 1 and connects to the vacuum groove 3. The air extraction hole 8 is directly connected to the vacuum insulation space 5 to ensure air extraction efficiency. The core rod 9 achieves the opening and closing control of the air extraction hole 8 through a spiral connection. When it is screwed out, the first sealing element 10 disengages from the air extraction hole 8, and the gas is discharged from the air outlet 13 through the gap 15. When it is screwed in, the sealing element blocks the air extraction hole 8 to maintain the vacuum state.
[0041] The design of the T-shaped hole 14 allows for symmetrical airflow discharge, while the spiral connection structure automatically locks under vacuum negative pressure to prevent the core rod 9 from falling off.
[0042] As a preferred example of this application, a second sealing element 11 is provided on the outer wall of the end of the core rod 9 away from the vacuum groove 3. The core rod 9 is sealed to the inner wall of the cylinder body 7 by the second sealing element 11. The second sealing element 11 is a rubber sealing ring, which is movably embedded in the outer wall of the core rod 9. The second sealing element 11 and the first sealing element 10 form a double seal, blocking the leakage path of the gap 15 between the cylinder body 7 and the core rod 9, and improving the reliability of vacuum maintenance.
[0043] As a preferred example of this application, the air outlet 13 is provided with an internal thread 16 for connecting the input end of the air extraction device. The air extraction device can be a vacuum pump, and the internal thread 16 can be directly connected to the air extraction device without the need for additional conversion parts, which facilitates construction and operation, while ensuring the sealing of the interface. The standardized thread design is compatible with common air extraction tools, reducing the difficulty and cost of installation.
[0044] As a preferred example of this application, the contact surface 2 of the plate 1 is provided with a sealing groove 17 distributed circumferentially along the plate 1. A third sealing element 12 is movably disposed in the sealing groove 17. The third sealing element 12 is a frame-shaped rubber sealing strip. After the third sealing element 12 is embedded in the sealing groove 17, it is squeezed by the plate 1 to form a frame-shaped sealing strip, which blocks the air infiltration from the edge of the plate 1 and enhances the overall airtightness.
[0045] As a preferred example of this application, an embedding groove 18 is provided on one side of the contact surface 2 of the plate 1, and an embedding block 19 is provided on the other side of the contact surface 2 of the plate 1. The embedding groove 18 and the embedding block 19 are adapted to each other. Both the embedding groove 18 and the embedding block 19 are pointed to form a tip 20. The plate 1 is locked by a movable through bolt and a nut connected to the bolt. The position of the bolt corresponds to the position of the embedding groove 18 and the embedding block 19.
[0046] The fitting design of the insert slot 18 and the insert block 19 enables automatic vertical alignment during the installation of the plate 1. Figure 4 (For reference), the advanced design guides the insert block 19 to be quickly inserted into the insert groove 18, reducing installation resistance, avoiding manual calibration errors, ensuring the docking accuracy of the vacuum groove 3, preventing air leakage in the vacuum insulation space 5 due to misalignment, and forming a mechanical interlocking structure, which improves the shear strength of the tight contact surface 2 of the plate 1, avoids displacement caused by force in the traditional flat connection method, and maintains the structural stability of the vacuum space. The bolts and nuts lock the plate 1 after the interlocking, achieving locking in the horizontal and vertical directions. Compared with welding, it is easier to disassemble and maintain, while providing uniform locking force. By tightening the bolts, the insert groove 18, the insert block 19 and the third seal 12 can be further squeezed to strengthen the sealing effect of the tight contact surface 2, ensuring that the docking surface of the vacuum groove 3 fits tightly and preventing vacuum leakage.
[0047] As a preferred example of this application, a torsion block 21 is installed at the end of the core rod 9 away from the vacuum tank 3. The outer surface of the torsion block 21 is roughened. The roughness of the outer surface of the torsion block 21 increases the friction, prevents the hand from slipping during operation, facilitates manual rotation of the core rod 9, and allows control of the opening and closing of the air extraction valve without tools, thereby improving construction efficiency.
[0048] As a preferred example of this application, the plate 1 includes a substrate layer 22 and an insulation layer 23 connected in sequence. The substrate layer 22 (normal plate 1, such as wood) provides structural support, and the insulation layer 23 (such as polyurethane) provides preliminary heat insulation. The inner walls of the vacuum groove 3 and the tube groove 4 are provided with a vacuum forming layer 24. The vacuum forming layer 24 is a ceramic coating. The ceramic coating (such as nano-ceramic material) on the inner walls of the vacuum groove 3 and the tube groove 4 can form a molecular-level sealing barrier, significantly reducing the gas permeation rate, effectively delaying the infiltration of outside air, extending the maintenance time of the vacuum insulation space 5, and reducing the decrease in heat insulation performance caused by vacuum decay.
[0049] In summary, this application utilizes a vacuum groove 3 to form a vacuum insulation space 5 when the two panels 1 are in close contact. This space, in conjunction with the extraction valve assembly 6, allows for the extraction of gas from the vacuum insulation space 5 using an external extraction device. The vacuum insulation space 5 contains very few gas molecules, effectively blocking heat conduction paths and significantly reducing heat loss compared to traditional foamed insulation materials. Furthermore, the vacuum insulation space 5 and the panel 1 material form a composite insulation structure, meeting ultra-low energy consumption building standards. The matching design of the embedded groove 18 and the embedded block 19 enables automatic vertical alignment during panel 1 installation, avoiding manual calibration errors and ensuring true insulation. The precision of the empty groove 3 connection prevents air leakage in the vacuum insulation space 5 due to misalignment. The interlocking structure forms a mechanical interlock, which improves the shear strength of the tight contact surface 2 of the plate 1. It avoids displacement caused by force in the traditional flat connection method and maintains the structural stability of the vacuum space. The bolts and nuts lock the plate 1 after interlocking, achieving locking in both the horizontal and vertical directions. Compared with welding, it is easier to disassemble and maintain, while providing uniform locking force. By tightening the bolts, the embedded groove 18, the embedded block 19 and the third sealing element 12 can be further squeezed to enhance the sealing effect of the tight contact surface 2, ensuring that the mating surfaces of the vacuum groove 3 fit tightly and preventing vacuum leakage.
[0050] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A low-carbon, energy-saving building wall panel, characterized in that: include: A pair of plates that fit together closely (1); A plurality of vacuum grooves (3) are provided on one side of the close contact surface (2) of the plate (1), and the plurality of vacuum grooves (3) are connected to each other through pipe grooves (4); When the plate (1) is in close contact, the vacuum groove (3) is connected to form a vacuum insulation space (5). A vacuum valve assembly (6) is fixedly installed through one of the plates (1). The input end of the vacuum valve assembly (6) is connected to one of the vacuum tanks (3) to discharge the gas in the vacuum insulation space (5).
2. The low-carbon energy-saving building wall panel according to claim 1, characterized in that: The vacuum valve assembly (6) includes a cylinder (7), which is fixedly connected through the corresponding plate (1) to the corresponding vacuum groove (3). One end of the cylinder (7) located in the vacuum groove (3) is provided with a vacuum hole (8). The cylinder (7) is spirally connected with a core rod (9). The end of the core rod (9) near the vacuum groove (3) is provided with a first sealing element (10) to seal the vacuum hole (8). The end of the core rod (9) away from the vacuum groove (3) is provided with an exhaust hole (13). The inner end of the exhaust hole (13) is provided with a T-shaped hole (14). The two ends of the T-shaped hole (14) away from the exhaust hole (13) extend to the outside of the core rod (9). The outer wall of the core rod (9) and the inner wall of the cylinder (7) are provided with a gap (15).
3. A low-carbon, energy-saving building wall panel according to claim 2, characterized in that: The outer wall of the core rod (9) away from the vacuum groove (3) is provided with a second seal (11), and the core rod (9) is sealed to the inner wall of the cylinder (7) through the second seal (11).
4. A low-carbon, energy-saving building wall panel according to claim 3, characterized in that: The air outlet (13) is provided with an internal thread (16) for connecting the input end of the air extraction device.
5. A low-carbon, energy-saving building wall panel according to claim 4, characterized in that: The contact surface (2) of the plate (1) is provided with a sealing groove (17) distributed circumferentially along the plate (1), and a third sealing element (12) is movably disposed in the sealing groove (17).
6. A low-carbon, energy-saving building wall panel according to claim 5, characterized in that: An embedding groove (18) is provided on one side of the close contact surface (2) of the plate (1), and an embedding block (19) is provided on the other side of the close contact surface (2) of the plate (1). The embedding groove (18) and the embedding block (19) are compatible.
7. A low-carbon, energy-saving building wall panel according to claim 6, characterized in that: Both the embedding groove (18) and the embedding block (19) are set with pointed ends.
8. A low-carbon, energy-saving building wall panel according to claim 7, characterized in that: The plate (1) is locked by a movable through bolt and a nut connected to the bolt, and the position of the bolt corresponds to the position of the embedded groove (18) and the embedded block (19).
9. A low-carbon, energy-saving building wall panel according to claim 8, characterized in that: A torsion block (21) is installed at the end of the core rod (9) away from the vacuum groove (3), and the outer surface of the torsion block (21) is rough.
10. A low-carbon, energy-saving building wall panel according to claim 9, characterized in that: The plate (1) includes a substrate layer (22) and an insulation layer (23) connected in sequence, and a vacuum forming layer (24) is provided on the inner wall of the vacuum groove (3) and the tube groove (4).