Thermal and sound insulation composite integrated board

Abstract

This invention relates to the field of composite panel technology and discloses a thermal insulation and soundproof composite integrated panel, comprising a composite panel body, which is composed of an inner lining board, a sound insulation layer, a thermal insulation layer, and a decorative surface layer bonded sequentially from the inside out. Dovetail grooves with corresponding positions and dovetail-shaped cross-sections are respectively formed on the adjacent surfaces of the sound insulation layer and the thermal insulation layer. A connecting strip is also included, which is inserted into the cavity formed by the dovetail grooves to mechanically lock the sound insulation layer and the thermal insulation layer together. This invention effectively prevents interlayer delamination through the mechanical locking cooperation of the dovetail grooves and the connecting strip. The wavy joint interface significantly enhances sound insulation performance and bonding strength. The staggered distribution of the dovetail grooves disperses connection stress, preventing panel breakage. The connecting strip combines interlayer locking and structural reinforcement functions, improving the overall structural strength. It has the advantages of simple structure, reliable connection, and long service life.

Description

Technical Field

[0001] This invention relates to the field of composite panel technology, specifically to a thermal insulation and soundproof composite integrated panel. Background Technology

[0002] Thermal insulation and sound insulation composite panels, as a new type of building material integrating multiple functions such as thermal insulation, sound insulation, and decoration, are widely used in building exterior wall cladding structures. Currently, the most common thermal insulation and sound insulation composite panels on the market are usually made by directly bonding multiple layers such as thermal insulation layer, sound insulation layer, and decorative surface layer together with adhesives, and the interlayer connection depends entirely on the adhesive strength of the adhesive.

[0003] However, in actual use, due to the significant difference in the coefficients of thermal expansion and shrinkage rates between thermal insulation and sound insulation materials, the adhesives are prone to aging, embrittlement, and even delamination under the influence of environmental factors such as long-term outdoor wet-dry cycles, freeze-thaw cycles, alternating hot and cold temperatures, and ultraviolet radiation. Once the adhesive fails, delamination, hollowing, or even detachment occurs between the functional layers, seriously affecting the service life of the panels and the safety performance of the building walls. In addition, existing composite panels usually require additional connecting parts such as keels and corner brackets to be fixed to the wall during installation, which not only complicates the installation process and reduces construction efficiency but also increases material and labor costs.

[0004] To address the aforementioned issues, this application proposes a thermal insulation and soundproofing composite integrated panel. Summary of the Invention

[0005] The purpose of this invention is to provide a thermal insulation and sound insulation composite integrated panel to solve the problems of easy delamination and detachment between layers and complex and costly installation in the prior art mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a thermal insulation and soundproof composite integrated panel, comprising a composite panel body, wherein the composite panel body comprises an inner lining panel, a sound insulation layer, a thermal insulation layer, and a decorative surface layer bonded sequentially from the inside to the outside; the surfaces of the sound insulation layer and the thermal insulation layer are respectively provided with dovetail grooves that are correspondingly positioned and have a dovetail-shaped cross-section, and at least two sets of dovetail grooves are provided, the two sets of dovetail grooves extending from the middle position of the sound insulation layer and the thermal insulation layer in the longitudinal direction to both ends in the longitudinal direction, and the dovetail grooves at both ends in the longitudinal direction are staggered in the vertical direction; It also includes a connecting strip, the cross-sectional shape of which matches the shape of the cavity formed by the combination of the two dovetail grooves. The connecting strip is inserted into the cavity to mechanically lock the sound insulation layer and the heat insulation layer together.

[0007] Preferably, the surfaces where the sound insulation layer and the heat insulation layer are connected are respectively provided with matching corrugated protrusions and corrugated grooves, with the corrugated protrusions embedded in the corrugated grooves, so that a wave-shaped joint interface is formed between the sound insulation layer and the heat insulation layer.

[0008] Preferably, one end of the connecting strip away from the center of the composite board extends out of the side edge of the sound insulation layer, and a mounting ear is fixedly connected to that end. The mounting ear is bent toward the inner lining board for fixed connection with the wall.

[0009] Preferably, the mounting ear is L-shaped, comprising a horizontal arm that is fixedly connected to the connecting strip perpendicularly, and a fixing piece that is bent perpendicularly to the horizontal arm; both ends of the sound insulation layer are provided with receiving grooves that match the horizontal arm, the horizontal arm is horizontally embedded in the receiving groove, and the end face of the horizontal arm is flush with the ends of the sound insulation layer.

[0010] Preferably, the inner lining plate has clearance grooves at both longitudinal ends for the insertion of fixing plates of adjacent composite plates; the fixing plates of the mounting ears have mounting holes for fasteners to pass through and be fixedly connected to the wall.

[0011] Preferably, one end of the decorative surface layer is bent toward one side of the composite board to form a U-shaped groove, and the other side of the composite board is fixedly bonded with an insertion protrusion that matches the U-shaped groove. Adjacent composite boards are assembled and connected by inserting the insertion protrusion into the U-shaped groove.

[0012] Preferably, the inner lining board is a calcium silicate board, cement fiber board, or gypsum board; the sound insulation layer is a rubber particle damping board, damping sound insulation felt, or glass wool board; the thermal insulation layer is an extruded polystyrene board, graphite molded polystyrene board, rigid polyurethane foam board, or rock wool board; and the decorative surface layer is a fluorocarbon paint coated metal plate, ceramic thin plate, or calcium silicate board decorative layer.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes the combined design of a thermal insulation layer and a sound insulation layer to achieve both thermal insulation and energy-saving effects, while the sound insulation layer provides sound insulation and noise reduction. Furthermore, the wavy interface between the two layers further enhances sound insulation performance. The dovetail groove cross-section has a small opening at the top and a large interior at the bottom. Combined with a connecting strip inserted longitudinally to form a continuous surface contact, this achieves bidirectional mechanical locking between the sound insulation layer and the thermal insulation layer. This effectively resists tensile forces perpendicular to the panel surface and shear forces parallel to the panel surface, preventing delamination and detachment between the layers.

[0014] This invention utilizes a dovetail groove structure, extending alternately from the center of both the sound insulation and thermal insulation layers along their longitudinal directions. This disperses the stress between the sound insulation and thermal insulation layers, preventing stress concentration on the same longitudinal section of the board and thus avoiding breakage at the groove opening. The connecting strip serves both interlayer locking and structural reinforcement functions, enhancing the overall structural strength of the composite board. Furthermore, the connecting strip penetrates longitudinally into the cavity formed by the dovetail grooves, creating a continuous surface contact fit, further strengthening the board's bending and shear resistance and extending its service life.

[0015] This invention features an L-shaped mounting lug fixedly connected to the end of a connecting strip, comprising a crossarm and a fixing piece. This allows the connecting strip to function simultaneously as an inter-layer connector and a wall mounting component, eliminating the need for additional keel or corner bracket connectors required in traditional installations. This simplifies the structure and reduces installation costs. The U-shaped slot and interlocking protrusion enable rapid assembly, significantly improving construction efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a thermal insulation and soundproof composite integrated panel according to the present invention; Figure 2 This is an exploded structural diagram of a thermal insulation and soundproof composite integrated panel according to the present invention; Figure 3 This is a schematic diagram of the sound insulation layer and the heat insulation layer in a composite integrated heat insulation and sound insulation panel of the present invention; Figure 4 This is a cross-sectional view of a thermal insulation and soundproof composite integrated panel according to the present invention; Figure 5 This is a schematic diagram of the structure of the present invention, showing two adjacent composite panels stacked vertically.

[0017] In the diagram: 1. Composite panel; 2. Dovetail groove; 3. Corrugated protrusion; 31. Corrugated groove; 4. Connecting strip; 5. Mounting lug; 6. Insertion protrusion; 11. Inner lining board; 12. Sound insulation layer; 13. Thermal insulation layer; 14. Decorative surface layer; 51. Cross arm; 52. Fixing piece; 111. Relief groove; 121. Receiving groove; 141. U-shaped slot. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the embodiments described below are only some embodiments of the present invention, and not all embodiments. Other implementation methods obtained by those skilled in the art based on the embodiments disclosed in this invention without creative effort should all fall within the protection scope of this invention.

[0019] For ease of description, this embodiment uses the height direction of the composite panel 1 after installation as the longitudinal direction, the width direction of the composite panel 1 as the transverse direction, and the direction from the inner lining plate 11 towards the decorative surface layer 14 as the thickness direction. The two ends of the longitudinal direction of the composite panel 1 are the upper end and the lower end, respectively, and the two sides of the transverse direction of the composite panel 1 are the left side and the right side, respectively. The above directional limitations are only used to illustrate the relative positional relationship between the various structures and do not constitute a limitation on the actual installation direction of the composite panel 1.

[0020] Please see Figures 1 to 5 This embodiment provides a thermal insulation and soundproof composite integrated panel, including a composite panel body 1. The composite panel body 1 includes an inner lining board 11, a sound insulation layer 12, a thermal insulation layer 13, and a decorative surface layer 14, which are sequentially arranged from the inside to the outside and bonded together along the thickness direction. The inner lining board 11 forms the inner supporting surface of the composite panel body 1, the sound insulation layer 12 absorbs or blocks sound wave propagation, the thermal insulation layer 13 reduces heat transfer between the inner and outer sides of the building wall, and the decorative surface layer 14 forms the outer decorative surface of the composite panel body 1 and provides weather-resistant protection for its internal functional layers.

[0021] The inner lining board 11, sound insulation layer 12, thermal insulation layer 13, and decorative surface layer 14 can be bonded together with adhesives to form an integrated board structure. The adhesive can be selected according to the materials of the adjacent layers to ensure that the adjacent layers have corresponding bonding strength and weather resistance.

[0022] like Figures 2 to 4 As shown, the sound insulation layer 12 and the heat insulation layer 13 are arranged adjacent to each other. Dovetail grooves 2 are respectively formed on the surface of the sound insulation layer 12 facing the heat insulation layer 13 and the surface of the heat insulation layer 13 facing the sound insulation layer 12. The openings of the dovetail grooves 2 on the sound insulation layer 12 and the dovetail grooves 2 on the heat insulation layer 13 are opposite to each other, and after the sound insulation layer 12 and the heat insulation layer 13 are attached to each other, they are combined to form a locking cavity for accommodating the connecting strip 4.

[0023] Each dovetail groove 2 includes a constricted area near the interface between the sound insulation layer 12 and the thermal insulation layer 13, and a widened area away from the interface, resulting in a cross-sectional structure where the opening of the dovetail groove 2 is relatively narrow and the interior is relatively wide. When two dovetail grooves 2 on the sound insulation layer 12 and the thermal insulation layer 13 are combined, they form a cavity that matches the cross-sectional shape of the connecting strip 4. The connecting strip 4 is inserted into this cavity, thereby embedding itself into the dovetail grooves 2 on the sound insulation layer 12 and the thermal insulation layer 13, respectively.

[0024] At least two sets of dovetail grooves 2 are provided. Different sets of dovetail grooves 2 extend from the middle region of the composite plate 1 in the longitudinal direction toward both ends of the composite plate 1, and form an inlet for the insertion of the connecting strip 4 on the corresponding longitudinal end face of the composite plate 1. The dovetail grooves 2 located on the upper part of the composite plate 1 and the dovetail grooves 2 located on the lower part of the composite plate 1 are staggered in the projection position on the plate surface of the composite plate 1, so that the force borne by different connection positions is distributed in different areas of the composite plate 1, reducing the possibility of local strength reduction caused by multiple groove positions being concentrated in the same cross section.

[0025] The cross-sectional shape of the connecting strip 4 matches the cavity shape formed by the combination of the two dovetail grooves 2 on the sound insulation layer 12 and the thermal insulation layer 13. During assembly, the connecting strip 4 is inserted into the locking cavity from the longitudinal end face corresponding to the composite plate 1 and moves to the predetermined position along the extension direction of the dovetail groove 2. After the connecting strip 4 is inserted, the portion of it on the side of the sound insulation layer 12 is embedded in the dovetail groove 2 on the sound insulation layer 12, and the portion of it on the side of the thermal insulation layer 13 is embedded in the dovetail groove 2 on the thermal insulation layer 13.

[0026] Because the dovetail groove 2 has a structure that is narrower on the side near the joint interface and wider on the side away from the joint interface, the connecting strip 4 is limited by the narrowing area of ​​the dovetail groove 2, which can prevent the connecting strip 4 from coming out in the direction perpendicular to the joint surface of the sound insulation layer 12 and the thermal insulation layer 13, thereby forming a mechanical locking relationship between the sound insulation layer 12 and the thermal insulation layer 13. The connecting strip 4 and the dovetail groove 2 form a continuous fit along the extension direction of the dovetail groove 2, which can increase the force-bearing contact area between the sound insulation layer 12 and the thermal insulation layer 13, and improve the tensile and shear resistance of the two.

[0027] Before inserting the connecting strip 4, adhesive can be applied to the surface of the connecting strip 4 and the wall of the dovetail groove 2. After the connecting strip 4 is inserted and positioned, the mechanical locking and adhesive fixation between the sound insulation layer 12 and the thermal insulation layer 13 are achieved through the structural fit between the connecting strip 4 and the dovetail groove 2 and the bonding effect after the adhesive has cured. Thus, even if the adhesive performance of some adhesive areas between the sound insulation layer 12 and the thermal insulation layer 13 deteriorates due to temperature differences, humidity changes, or material aging, the connecting strip 4 can still provide auxiliary locking for the sound insulation layer 12 and the thermal insulation layer 13, reducing the possibility of delamination or separation between the two.

[0028] The connecting strip 4 can be made of metal, engineering plastic, or fiber-reinforced composite material with corresponding tensile and shear strength. The specific width, thickness, and length of the connecting strip 4 can be set according to the size of the composite panel 1, the material strength of the sound insulation layer 12 and the thermal insulation layer 13, and the design load of the composite panel 1.

[0029] like Figure 3As shown, the surfaces where the sound insulation layer 12 connects to the thermal insulation layer 13 are respectively provided with matching corrugated protrusions 3 and corrugated grooves 31. In this embodiment, the corrugated protrusions 3 can be provided on the surface of the sound insulation layer 12 facing the thermal insulation layer 13, and the corrugated grooves 31 can be provided on the surface of the thermal insulation layer 13 facing the sound insulation layer 12; in other embodiments, the positions of the corrugated protrusions 3 and the corrugated grooves 31 can also be interchanged.

[0030] When the sound insulation layer 12 and the thermal insulation layer 13 are bonded together, the corrugated protrusions 3 are embedded in the corrugated grooves 31, forming a wavy joint interface between the sound insulation layer 12 and the thermal insulation layer 13. Compared with a planar joint structure, the wavy joint interface can increase the actual contact area between the sound insulation layer 12 and the thermal insulation layer 13, thereby increasing the effective bonding area of ​​the adhesive and improving the bonding stability between the sound insulation layer 12 and the thermal insulation layer 13.

[0031] Meanwhile, the wave-shaped interface allows sound waves to form a relatively tortuous propagation path as they propagate from one layer of material to another, causing reflection, transmission, and attenuation between different materials. This helps increase energy loss during sound wave propagation, thereby improving the sound insulation performance of the composite panel 1.

[0032] The height difference between the crests and troughs of the corrugated protrusions 3 can be set to 3–10 mm, and the spacing between two adjacent crests can be set to 10–30 mm. The height difference between the crests and troughs can be measured along the thickness direction of the composite panel 1, and the spacing between adjacent crests can be the distance between the centers of two adjacent crests. Using the above dimensional range allows for the formation of the corresponding corrugated joint area and facilitates the pressing, cutting, or molding of the sound insulation layer 12 and the thermal insulation layer 13.

[0033] The corrugated protrusions 3 and corrugated grooves 31 can be continuously arranged at the joint surface between the sound insulation layer 12 and the thermal insulation layer 13, or they can be arranged in sections, avoiding the area where the dovetail groove 2 is located. A corresponding structural thickness is maintained between the dovetail groove 2 and the corrugated structure to reduce the impact of opening the dovetail groove 2 on the local strength of the corrugated protrusions 3 or the corrugated grooves 31.

[0034] like Figures 1 to 3 As shown, the end of the connecting strip 4 away from the longitudinal center of the composite panel 1 extends to the corresponding longitudinal end of the composite panel 1, and a mounting lug 5 is connected to this end. The mounting lug 5 extends or bends toward the side where the inner lining plate 11 is located, for connection with the wall to be installed.

[0035] The mounting ear 5 and the connecting strip 4 can be integrally formed, or they can be combined by welding, riveting, threaded connection, or other fixed connection methods. Since the mounting ear 5 and the connecting strip 4 are fixedly connected, and the connecting strip 4 is embedded in the dovetail groove 2 on the sound insulation layer 12 and the heat insulation layer 13, the force on the mounting ear 5 can be transmitted to the sound insulation layer 12 and the heat insulation layer 13 through the connecting strip 4, so that the connecting strip 4 can play the role of interlayer locking and plate installation connection at the same time.

[0036] The mounting lug 5 has an L-shaped structure, comprising a cross arm 51 and a fixing piece 52. One end of the cross arm 51 is fixedly connected to the connecting strip 4, and the fixing piece 52 is located at the end of the cross arm 51 away from the connecting strip 4 and is bent relative to the cross arm 51. The fixing piece 52 is used to abut against the wall, and has mounting holes on it. Fasteners can pass through the mounting holes and connect to the wall to fix the composite panel 1 to the wall surface.

[0037] The sound insulation layer 12 has receiving grooves 121 on its longitudinal end faces that are adapted to the shape of the cross arm 51. After the mounting ear 5 and the connecting strip 4 are assembled, the cross arm 51 is embedded in the receiving groove 121 of its corresponding composite board 1. The depth of the receiving groove 121 can match the corresponding size of the cross arm 51, so that after the cross arm 51 is embedded in the receiving groove 121, the surface of the cross arm 51 facing the longitudinal outer side of the composite board 1 is basically flush with the corresponding longitudinal end face of the sound insulation layer 12.

[0038] By setting the receiving groove 121, the amount of protrusion of the cross arm 51 relative to the end face of the sound insulation layer 12 can be reduced, thereby reducing the interference of the cross arm 51 on the assembly process of the upper and lower adjacent composite panels, allowing the end faces of the adjacent composite panels to approach each other, and reducing the assembly gap between the adjacent composite panels.

[0039] The inner lining plate 11 has relief grooves 111 at both ends of its longitudinal direction. The position of the relief grooves 111 corresponds to the fixing pieces 52 on the adjacent composite plate. The shape and size of the relief grooves 111 are adapted to the shape and size of the fixing pieces 52 so that the fixing pieces 52 of the adjacent composite plate can be embedded in the relief grooves 111.

[0040] In one installation configuration, the lower composite panel is first fixed to the wall surface, with the fixing plate 52 at the upper end of the lower composite panel connected to the wall via fasteners. Then, the upper composite panel is installed, aligning the clearance groove 111 at the lower end of the upper composite panel with the fixing plate 52 at the upper end of the lower composite panel, and embedding the fixing plate 52 into the clearance groove 111. This reduces the obstruction of the fixing plate 52 during the placement of the upper composite panel and keeps the surfaces of the inner lining plates 11 of adjacent upper and lower composite panels relatively flat.

[0041] The clearance groove 111 also assists in positioning adjacent composite panels. After the fixing piece 52 is embedded in the corresponding clearance groove 111, it can limit the relative displacement of adjacent composite panels in a local area, which helps to improve the neatness of the composite panel wall assembly.

[0042] like Figure 1 and Figure 2 As shown, one lateral side of the decorative surface layer 14 is bent towards the composite board 1 to form a U-shaped groove 141, and the other lateral side of the composite board 1 opposite to the U-shaped groove 141 is fixedly connected with an insertion protrusion 6. The cross-sectional shape of the insertion protrusion 6 is adapted to the internal shape of the U-shaped groove 141, and can be continuously arranged or segmented along the longitudinal direction of the composite board 1.

[0043] When two adjacent composite panels are assembled, the inserting protrusion 6 on one composite panel is inserted into the U-shaped slot 141 on the other composite panel. The opposite side walls of the U-shaped slot 141 clamp and limit the inserting protrusion 6, thereby helping to restrict the relative movement of the two adjacent composite panels in the thickness and lateral directions, and realizing the rapid alignment between adjacent composite panels.

[0044] Sealant can also be applied to the joint between the U-shaped groove 141 and the insertion protrusion 6. After the sealant cures, it can seal the splice seam between adjacent composite panels, reducing the possibility of rainwater or moisture entering the interior of the composite panel 1 through the splice seam.

[0045] In this embodiment, the inner lining board 11 can be made of calcium silicate board, cement fiberboard, or gypsum board. As a structural layer on the side of the composite board 1 closest to the building wall, the inner lining board 11 can provide support for the sound insulation layer 12 and the thermal insulation layer 13, and can play a corresponding fireproof or protective role depending on the selected material.

[0046] The sound insulation layer 12 can be made of rubber particle damping board, damping sound insulation felt or glass wool board. The sound insulation layer 12 uses the material's own density, elasticity, fiber structure or damping characteristics to absorb, block or attenuate sound waves, so as to reduce the intensity of sound propagating through the composite board 1.

[0047] When the sound insulation layer 12 is made of flexible or fibrous material, a corresponding reinforcing part can be provided in the area where the dovetail groove 2 is located, so that the dovetail groove 2 is formed in an area with high structural strength, thereby improving the locking stability between the dovetail groove 2 and the connecting strip 4. The reinforcing part can be integrally formed with the sound insulation layer 12, or it can be formed by bonding, impregnation and curing, or embedding a rigid lining strip.

[0048] The insulation layer 13 can be made of extruded polystyrene board, graphite molded polystyrene board, rigid polyurethane foam board, or rock wool board. The insulation layer 13 utilizes the microporous or fibrous structure inside the material to reduce heat conduction, thereby reducing heat exchange between the interior and exterior of the building wall.

[0049] When the insulation layer 13 is made of fiber materials such as rock wool board, a rigid reinforcing part or a groove-shaped bushing can be set in the area where the dovetail groove 2 is located, and the dovetail groove 2 is formed in the reinforcing part or the groove-shaped bushing, so that the force borne by the connecting strip 4 can be transmitted to the insulation layer 13 through the reinforcing part, reducing the possibility of crushing or tearing at the edge of the dovetail groove 2.

[0050] The decorative surface layer 14 can be made of fluorocarbon coated metal plate, ceramic thin plate or calcium silicate board. The decorative surface layer 14 is located on the outside of the composite panel 1, used to form the decorative effect of the building facade, and can play a corresponding role in waterproofing, weathering resistance and protection for the insulation layer 13 and sound insulation layer 12 located on its inner side.

[0051] The aforementioned inner lining 11, sound insulation layer 12, heat insulation layer 13, and decorative surface layer 14 respectively undertake the functions of support, sound insulation, heat insulation, decoration, and protection. They are combined into one unit through an adhesive structure, a corrugated joint structure, and a mechanical locking structure formed by the dovetail groove 2 and the connecting strip 4, thereby forming a composite integrated panel with heat insulation, sound insulation, and decorative functions.

[0052] The composite panel of this embodiment can be prefabricated in the factory. During manufacturing, the inner lining panel 11, the sound insulation layer 12, the heat insulation layer 13 and the decorative surface layer 14 can be processed separately, and dovetail grooves 2, corrugated protrusions 3 and corrugated grooves 31 can be processed on the opposite surfaces of the sound insulation layer 12 and the heat insulation layer 13.

[0053] Subsequently, adhesive is applied to the joint surface of the sound insulation layer 12 and the thermal insulation layer 13, so that the corrugated protrusions 3 and the corrugated grooves 31 are aligned and fitted together to form a wavy joint interface. After the sound insulation layer 12 and the thermal insulation layer 13 are initially positioned, the connecting strips 4 with adhesive coatings on their surfaces are inserted into the cavities formed by the combination of the two dovetail grooves 2 from their corresponding end faces, so that the connecting strips 4 are embedded in the sound insulation layer 12 and the thermal insulation layer 13 respectively.

[0054] After the connecting strip 4 is inserted into the predetermined position, the sound insulation layer 12 and the thermal insulation layer 13 are pressed together to cure the adhesive. Then, the inner lining board 11 is bonded to the side of the sound insulation layer 12 away from the thermal insulation layer 13, and the decorative surface layer 14 is bonded to the side of the thermal insulation layer 13 away from the sound insulation layer 12, thereby forming the composite board 1. The end of the connecting strip 4 is equipped with mounting lugs 5, the cross arm 51 is embedded in the receiving groove 121 at the end of the sound insulation layer 12, and the fixing piece 52 extends towards the inner lining board 11 for on-site installation.

[0055] After the composite panel 1 is transported to the construction site, taking installation on the exterior wall of a building as an example, the inner lining panel 11 faces the wall or the interior of the building, the decorative surface layer 14 faces the exterior of the building, and the composite panel 1 is attached to the predetermined installation position on the wall. After the fixing plate 52 is attached to the wall surface, the fasteners are passed through the mounting holes on the fixing plate 52 and fixed in the wall, thereby installing the composite panel 1 on the wall surface.

[0056] When installing adjacent composite panels, the lower composite panel can be installed first, and its fixing piece 52 can be used to fix it to the wall. Then, the upper composite panel is installed on top of the lower composite panel, so that the clearance groove 111 at the lower end of the upper composite panel corresponds to the fixing piece 52 at the upper end of the lower composite panel, and the fixing piece 52 is embedded in the clearance groove 111. At the same time, the cross arm 51 at the end of each composite panel is embedded in its own receiving groove 121, thereby reducing the impact of the cross arm 51 on the end face adhesion of adjacent composite panels.

[0057] When installing adjacent composite panels, align the interlocking protrusion 6 on one composite panel with the U-shaped groove 141 on the other composite panel, and gradually insert the interlocking protrusion 6 into the U-shaped groove 141. The interlocking fit between the U-shaped groove 141 and the interlocking protrusion 6 enables rapid positioning and assembly of adjacent composite panels. After assembly, sealant can be applied to the joint to improve the waterproof sealing performance of the seam.

[0058] During use, the insulation layer 13 blocks heat transfer between the interior and exterior of the building wall, while the sound insulation layer 12 absorbs and attenuates sound waves propagating through the composite panel 1. The wavy joint interface between the sound insulation layer 12 and the insulation layer 13 increases their bonding area, and the mechanical locking structure formed by the dovetail groove 2 and the connecting strip 4 restricts separation or relative slippage between the sound insulation layer 12 and the insulation layer 13. The mounting lugs 5 are connected to the connecting strip 4, allowing the weight of the composite panel 1 and external forces to be transferred to the sound insulation layer 12 and the insulation layer 13 via the connecting strip 4, thereby improving the installation and connection stability of the composite panel 1.

Claims

1. A thermal insulation and soundproof composite integrated panel, comprising a composite panel body (1), characterized in that: The composite panel (1) includes an inner lining panel (11), a sound insulation layer (12), a heat insulation layer (13), and a decorative surface layer (14) bonded together from the inside to the outside. The sound insulation layer (12) and the heat insulation layer (13) are respectively provided with dovetail grooves (2) with corresponding positions and dovetail-shaped cross sections. There are at least two sets of dovetail grooves (2). The two sets of dovetail grooves (2) extend from the middle position of the sound insulation layer (12) and the heat insulation layer (13) in the longitudinal direction to both ends in the longitudinal direction, and the dovetail grooves (2) at both ends in the longitudinal direction are staggered in the vertical direction. It also includes a connecting strip (4), the cross-sectional shape of which matches the shape of the cavity formed by the combination of the two dovetail grooves (2), the connecting strip (4) is inserted into the cavity to mechanically lock the sound insulation layer (12) and the heat insulation layer (13).

2. The thermal insulation and soundproof composite integrated panel according to claim 1, characterized in that: The sound insulation layer (12) and the heat insulation layer (13) are respectively provided with matching corrugated protrusions (3) and corrugated grooves (31). The corrugated protrusions (3) are embedded in the corrugated grooves (31), so that a wave-shaped joint interface is formed between the sound insulation layer (12) and the heat insulation layer (13).

3. The thermal insulation and soundproof composite integrated panel according to claim 1, characterized in that: The connecting strip (4) extends from the side edge of the sound insulation layer (12) at one end away from the center of the composite board (1), and a mounting ear (5) is fixedly connected to that end. The mounting ear (5) is bent toward the inner lining plate (11) for fixed connection with the wall.

4. The thermal insulation and soundproof composite integrated panel according to claim 3, characterized in that: The mounting ear piece (5) is L-shaped, including a horizontal arm (51) that is vertically fixedly connected to the connecting strip (4), and a fixing piece (52) that is bent vertically to the horizontal arm (51); the longitudinal end faces of the sound insulation layer (12) are provided with receiving grooves (121) that match the horizontal arm (51), the horizontal arm (51) is horizontally embedded in the receiving groove (121), and the end face of the horizontal arm (51) is flush with the longitudinal end faces of the sound insulation layer (12).

5. The thermal insulation and soundproofing composite integrated panel according to claim 4, characterized in that: The inner lining plate (11) has clearance grooves (111) at both longitudinal ends for the insertion of fixing pieces (52) of adjacent composite plates; the fixing pieces (52) of the mounting ear (5) have mounting holes for fasteners to pass through and be fixedly connected to the wall.

6. The thermal insulation and soundproof composite integrated panel according to claim 1, characterized in that: One end of the decorative surface layer (14) is bent toward one side of the composite board (1) to form a U-shaped groove (141). The other side of the composite board (1) is fixedly bonded with an insertion protrusion (6) that matches the U-shaped groove (141). Two adjacent composite boards are assembled and connected by inserting the insertion protrusion (6) into the U-shaped groove (141).

7. The thermal insulation and soundproof composite integrated panel according to claim 1, characterized in that: The inner lining board (11) is a calcium silicate board, cement fiber board or gypsum board; the sound insulation layer (12) is a rubber particle damping board, damping sound insulation felt or glass wool board; the thermal insulation layer (13) is an extruded polystyrene board, graphite molded polystyrene board, rigid polyurethane foam board or rock wool board; the decorative surface layer (14) is a fluorocarbon paint coated metal plate, ceramic thin plate or calcium silicate board decorative layer.

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