Assembled lightweight composite thermal insulation energy saving board

Abstract

The present invention relates to the technical field of thermal insulation boards, and discloses an assembled lightweight composite thermal insulation energy-saving board, which includes a cladding panel, and further includes an outer thermal insulation board and an inner thermal insulation board fixedly connected inside the cladding panel, a soundproofing board fixedly connected between the outer thermal insulation board and the inner thermal insulation board, and two outer silicone sheets fixedly connected to the left and right sides of the cladding panel respectively. Phase change materials are provided inside both the aluminum bars and the outer silicone sheets, and the aluminum bars and the aluminum sheets equalize the internal temperature of the cladding panel. The outer thermal insulation board and the inner thermal insulation board form a double-layer thermal insulation structure, while forming a basic thermal resistance barrier with the soundproofing board to slow down the heat loss. The aluminum sheets and the aluminum bars form a criss-crossing heat conduction network, and the phase change materials inside the aluminum bars and the outer silicone sheets can be used to keep good thermal insulation and energy-saving effects during solid-liquid transformation, thereby significantly reducing the energy consumption of the building. FIG. 1 20 25 22 07 50 20 A ug 2 02 5 A B S T R A C T 2 0 2 5 2 2 0 7 5 0 2 0 2 0 2 5 A u g F I G . 1

Description

Technical Field The present disclosure relates to the technical field of thermal insulation boards, and in 5 particular to an assembled lightweight composite thermal insulation energy-saving board. Background Thermal insulation energy-saving boards are a kind of building materials with efficient heat preservation and thermal insulation performance, which are used to reduce heat transfer and energy consumption. They are widely used in the field of construction, and their internal thermal insulation 10 material is composed of a variety of materials. However, in the prior art, the single-layer design adopted by the building thermal insulation boards can hardly meet the actual demands. In cold regions, indoor heat can be rapidly dissipated through a thin thermal insulation layer in winter, so that the heating system has maintain continuous high-intensity operation, thereby not only greatly increasing the energy consumption cost, but also 15 making it difficult to maintain a constant temperature environment indoors. Therefore, households need to additionally use heating equipment, thereby compromising the residential experience while consuming resources. At the same time, due to inconvenient installation of the thermal insulation board, deviation tends to occur between two thermal insulation boards during installation, thus reducing the sealing adherence. In addition, as the outer protective layer is directly exposed to the 20 external environment, the temperature change of the outer protective layer is affected by the sun. In the same outer wall, the irradiated area can be rapidly heated by the direct sunlight in the daytime, whereas the shaded area, especially the area sheltered by the building structure or in the shade, is at a lower temperature. Furthermore, a single outer protective board includes a lightreceiving surface and a back-light surface, so that the overall thermal insulation board has 25 temperature difference, and the generated uneven thermal stress can damage the connecting part of the thermal insulation board and the fixed structure, and the looseness and deformation of the connecting point are sped up. Furthermore, as the internal materials of the thermal insulation board 1 2025220750   24 Jun 2026 are usually installed from both sides, the transverse thermal expansion can be more easily generated, and the glue sealing method is adopted at the connecting part of the two boards, the thermal stress generated by the difference acts repeatedly to impact the sealing part, lead to the degraded performance of the sealing glue, which not only directly leads to worsened sealing performance and consequently aggravated heat loss and degraded soundproofing effect, but also leads to cracks inside the thermal insulation board. With the passage of time, the cracks will continue to expand, and then the integrity of the thermal insulation board is damaged, leading to cracking, peeling, and other issues, and then rain and moisture can penetrate between the thermal insulation layer and the wall along the cracks, resulting in moisture absorption and humidification of the thermal insulation materials, and the thermal conductivity of the dampened thermal insulation materials increases significantly, further aggravating the heat loss, and at the same time, the wall structure will be eroded due to long-term moisture, affecting the overall safety and service life of the building. Any discussion of documents, acts, materials, devices, articles or the like which has been included in the present specification is not to be taken as an admission that any or all of these matters form part of the prior art base or were common general knowledge in the field relevant to the present disclosure as it existed before the priority date of each of the appended claims. Throughout this specification the word “comprise”, or variations such as “comprises” or “comprising”, will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps. Summary Some embodiments of the present disclosure aim to provide an assembled lightweight composite thermal insulation energy-saving board, which solves the problem that the building thermal insulation board is not stable and cannot provide effective thermal insulation. According to one aspect of the present disclosure, there is provided an assembled lightweight composite thermal insulation energy-saving board includes a cladding panel, and further includes 2 2025220750   24 Jun 2026 an outer thermal insulation board and an inner thermal insulation board fixedly connected inside the cladding panel, a soundproofing board fixedly connected between the outer thermal insulation board and the inner thermal insulation board, two outer silicone sheets fixedly connected to the left and right sides of the cladding panel respectively, two aluminum sheets fixedly connected inside the cladding panel, a plurality of aluminum bars fixedly connected inside the cladding panel horizontally and equidistantly, two spring piece buckles fixedly connected to the top of the cladding panel, a bottom board fixedly connected at the bottom end of the cladding panel, and two bottom latches fixedly connected inside the bottom board. The two aluminum sheets are respectively located between the outer thermal insulation board and the cladding panel, and between the inner thermal insulation board and the cladding panel. The aluminum bars are located between the two aluminum sheets and the two are fitted against each other. The two spring piece buckles are symmetrical about the central axis of the cladding panel, and the two bottom latches are symmetrical about the central axis of the cladding panel. Phase change materials are provided inside both the aluminum bars and the outer silicone sheets, and the aluminum bars and the aluminum sheets equalize the internal temperature of the cladding panel. Further, the top of the cladding panel is provided as an upper inclined face, the surface of the cladding panel is provided with an inner concave surface which is located below the upper inclined face, the top of the cladding panel is provided with a plurality of limit bars, the left and right sides of the spring piece buckles are both provided with limit bars, and the upper inclined face is located between the two spring piece buckles. Further, both the aluminum sheets are vertically and equidistantly arranged in plurality, one horizontal row of aluminum bars makes up a module, a plurality of modules are vertically and equidistantly arranged, and the left and right sides of the spring piece buckles and the bottom board are located in the same plane. Further, the cladding panel, the outer thermal insulation board, the inner thermal insulation board, the soundproofing board and the aluminum sheets are all provided with the same number of a plurality of cross holes, the number of cross holes on the cladding panel is equal to that of the 3 2025220750   24 Jun 2026 aluminum bars, and each of the aluminum bars penetrates through a plurality of overlapping and intercommunicating cross holes. Further, the aluminum bar includes a straight bar fixedly connected inside the cladding panel and a soft rubber sleeve sleeved over the outer side of the straight bar, a plurality of straight notches are formed at the position where the soft rubber sleeve is installed on the straight bar, and both the straight bar and the soft rubber sleeve are of a cross shape. Further, two short vertical grooves are formed in the bottom board, and are symmetrical about the central axis of the cladding panel, the bottom latches are located inside the short vertical grooves, and a lower inclined block is fixedly arranged in the bottom board. Further, a plurality of transverse grooves are formed on one side of the soundproofing board vertically and equidistantly, a plurality of arc grooves are formed inside each of the transverse grooves, non-woven fabrics are provided on the side of the soundproofing board without transverse grooves, the soft rubber sleeve is located inside the transverse grooves, and the soft rubber sleeve is out of contact with the soundproofing board when it is not deformed. Further, the surfaces of both the upper inclined face and the lower inclined block have gone through high friction treatment, the length and inclination angle of the lower inclined block and the upper inclined face are the same, and the vertical length of the bottom board is equal to the distance from the inner concave surface to the top end of the cladding panel. Further, a plurality of long vertical grooves are formed on the side of the outer silicone sheet away from the outer thermal insulation board, and the filling volume of the phase change material inside the outer silicone sheet is smaller than the internal volume of the outer silicone sheet. Further, a flange is provided on the left and right sides of the surface of the cladding panel without cross holes, and the side of the flange close to the central axis of the cladding panel is provided with a rounded corner. Some embodiments of the present disclosure may provide the following beneficial effects. 1. The outer thermal insulation board and the inner thermal insulation board form a doublelayer thermal insulation structure, while forming a basic thermal resistance barrier with the 4 2025220750   24 Jun 2026 soundproofing board to slow down the heat loss. The aluminum sheets and the aluminum bars form a criss-crossing heat conduction network, so that when the local temperature of the board rises, the heat can be quickly diffused laterally through the aluminum sheets, and the aluminum bars conduct longitudinally to realize effective thermal insulation. At the same time, the overall temperature 5 equalization can be quickly realized, so as to avoid local overheating; and the phase change materials inside the aluminum bars and the outer silicone sheets can be used to keep good thermal insulation and energy-saving effects during solid-liquid transformation, thereby significantly reducing the energy consumption of the building. 2. Through the precise buckling of the spring piece buckles and the bottom latches, combined 10 with the guidance and positioning by the limit bars and the short vertical grooves, the splicing of the boards can be quickly and accurately completed, so that the labor cost is reduced, the firm connection of both sides of the cladding panel is ensured, the installation deviation is avoided, and a continuous and tight sealing layer can be formed, thereby effectively resisting the penetration of rain, moisture and air from the outside. 15       3. The combination of the soft rubber sleeve and the transverse grooves of the soundproofing board ensures the sound wave reflection and noise reduction under normal conditions; the soft rubber sleeve is squeezed by the phase change material at high temperature to block the transverse grooves, which not only improves the thermal insulation but also enhances the barrier to the high-frequency noise. Meanwhile, the long vertical grooves on the outer silicone sheet provide a buffer 20 space during the transverse thermal expansion of the board, ensuring the integrity of the sealing structure and avoiding breakage or separation of the silicone sheet from the board due to the thermal expansion and cold contraction. Brief Description of the Drawings Fig. 1 is a schematic perspective structural view from a first perspective of the present 25 disclosure; Fig. 2 is an exploded view of a partial structure of the present disclosure; Fig. 3 is an enlarged schematic view at part A in Fig. 1 of the present disclosure; 2025220750   24 Jun 2026 Fig. 4 is a schematic structural view of an aluminum bar of the present disclosure; Fig. 5 is a schematic structural view of an outer silicone sheet of the present disclosure; Fig. 6 is an enlarged schematic view at part B in Fig. 5 of the present disclosure; Fig. 7 is a schematic structural view of a soundproofing board of the present disclosure; Fig. 8 is a top view of a cladding panel of the present disclosure; and Fig. 9 is a sectional view taken along C-C in Fig. 8 of the present disclosure. In the drawings: 1. cladding panel; 101. upper inclined face; 102. inner concave surface; 103. limit bar; 2. outer thermal insulation board; 3. inner thermal insulation board; 4. soundproofing board; 41. transverse groove; 42. arc groove; 5. outer silicone sheet; 51. long vertical groove; 6. aluminum sheet; 7. aluminum bar; 71. straight bar; 72. soft rubber sleeve; 8. spring piece buckle; 9. bottom board; 91. short vertical groove; 92. lower inclined block; 10. bottom latch; 11. cross hole; 12. flange. Detailed Description In order to make the aforementioned objects, characteristics and advantages of the present disclosure more clearly and easily understood, detailed description of the specific embodiments of the present disclosure is made hereinafter in combination with the accompanying drawings of the specification. Refer to Figs. 1-9, which show an embodiment of the present disclosure, providing an assembled lightweight composite thermal insulation energy-saving board, including a cladding panel 1, and further including an outer thermal insulation board 2 and an inner thermal insulation board 3 fixedly connected inside the cladding panel 1, a soundproofing board 4 fixedly connected between the outer thermal insulation board 2 and the inner thermal insulation board 3, two outer silicone sheets 5 fixedly connected to the left and right sides of the cladding panel 1 respectively, two aluminum sheets 6 fixedly connected inside the cladding panel 1, a plurality of aluminum bars 7 fixedly connected inside the cladding panel 1 horizontally and equidistantly, two spring piece buckles 8 fixedly connected to the top of the cladding panel 1, a bottom board 9 fixedly connected at the bottom end of the cladding panel 1, and two bottom latches 10 fixedly connected inside the 6 2025220750   24 Jun 2026 bottom board 9. The two aluminum sheets 6 are respectively located between the outer thermal insulation board 2 and the cladding panel 1, and between the inner thermal insulation board 3 and the cladding panel 1. The aluminum bars 7 are located between the two aluminum sheets 6 and the two are fitted against each other. The two spring piece buckles 8 are symmetrical about the central axis of the cladding panel 1, and the two bottom latches 10 are symmetrical about the central axis of the cladding panel 1. Phase change materials are provided inside both the aluminum bars 7 and the outer silicone sheets 5, and the aluminum bars 7 and the aluminum sheets 6 equalize the internal temperature of the cladding panel 1. Specifically, the outer thermal insulation board 2 and the inner thermal insulation board 3 form a double-layer thermal insulation structure, which increases the thickness and the thermal resistance of the thermal insulation layer. Meanwhile, the soundproofing board 4 between the outer thermal insulation board 2 and the inner thermal insulation board 3 further slows down the heat conduction and improves the overall thermal insulation performance while improving the soundproofing effect. At the same time, the aluminum sheets 6 and the aluminum bars 7 have good thermal conductivity and can conduct heat quickly, so that when the local temperature of the thermal insulation board rises, the heat is rapidly diffused to the whole thermal insulation board through the aluminum sheets 6 and the aluminum bars 7, thus avoiding local overheating. Furthermore, the phase change materials inside the aluminum bars 7 and the outer silicone sheets 5 experience phase change when the temperature changes to absorb or release the heat, thereby further adjusting the internal temperature of the thermal insulation board, realizing the equalization of the internal temperature of the cladding panel 1, and reducing the thermal stress caused by the temperature difference. That is, the heat is released by the solid-liquid transformation of the phase change materials at night, thereby realizing thermal insulation and energy saving. It can be understood that when installing the thermal insulation board, a ladder or rope is typically vertically built in view of the height of the building wall, and the splicing work is done in the vertical direction. After the installation of the thermal insulation board in a single vertical area is finished, the installation of the areas is to be done. Further, during the installation, the 7 2025220750   24 Jun 2026 bottom latch 10 at the bottom end of one thermal insulation board is aligned with the spring piece buckle 8 at the top of another thermal insulation board, and the rapid connection can be completed by pressing down. Meanwhile, two symmetrical spring piece buckles 8 and bottom latches 10 can ensure stable connection of both sides of the cladding panel 1, avoid installation deviation, and improve sealing adherence. Referring to Figs. 2-6, the top of the cladding panel 1 is provided as an upper inclined face 101, the surface of the cladding panel 1 is provided with an inner concave surface 102 which is located below the upper inclined face 101, the top of the cladding panel 1 is provided with a plurality of limit bars 103, the left and right sides of the spring piece buckle 8 are both provided with limit bars 103, and the upper inclined face 101 is located between the two spring piece buckles 8. Two short vertical grooves 91 are formed on the bottom board 9, the two short vertical grooves 91 are symmetrical about the central axis of the cladding panel 1, the bottom latches 10 are positioned inside the short vertical grooves 91, a lower inclined block 92 is fixedly arranged inside the bottom board 9, the surfaces of both the upper inclined face 101 and the lower inclined block 92 have gone through high friction treatment, the length and inclination angle of the lower inclined block 92 and the upper inclined face 101 are the same, and the vertical length of the bottom board 9 is equal to the distance from the inner concave surface 102 to the top end of the cladding panel 1. Specifically, when two boards are spliced vertically, the upper inclined face 101 is closely fitted against the lower inclined block 92 of the bottom board 9 of the adjacent board so that not only squeezing force is generated through its own inclination angle, such that the boards are abutted tightly against each other, but also the high-friction surfaces effectively prevent the boards from sliding relative to each other during the installation process. Thus, the connection stability of the boards in the vertical direction is enhanced, accurate installation position of the boards is ensured, and the problem of insecure sealing caused by installation deviation is avoided. Besides, the limit bars 103 at the left and right sides of the spring piece buckles 8 provide guidance and limiting during the board splicing process. The limit bars 103 enter the short vertical grooves 91 when the 8 2025220750   24 Jun 2026 boards are being spliced, ensuring that the spring piece buckles 8 can be accurately aligned with the bottom latches 10 of the other board, and during the buckling process, the limit bars 103 further restrain the position of the boards to prevent the deviation caused by the external force, so as to ensure that the connecting components are tightly engaged, and improve the installation precision 5 and the connection stability. Referring to Figs. 1-7, both aluminum sheets 6 are vertically and equidistantly arranged in plurality, one horizontal row of aluminum bars 7 makes up a module, a plurality of modules are vertically and equidistantly arranged, and the left and right sides of the spring piece buckles 8 and the bottom board 9 are located in the same plane, so that when the adjacent boards are spliced, the 10 spring piece buckles 8 and the bottom board 9 can be accurately aligned, the buckling process is smoother, the installation deviation caused by dislocation can be effectively avoided, a continuous and tight sealing layer is formed, which effectively prevents the penetration of external rain water, moisture and air, significantly improves the sealing performance of the thermal insulation board, and guarantees the thermal insulation and energy saving effect and the service life of the building. 15       Specifically, the plurality of aluminum sheets 6 conduct heat in the transverse direction, and meanwhile, the aluminum bars 7 connect the aluminum sheets 6 located on different facades of the cladding panel 1 in series, so that the aluminum bars 7 can conduct heat in the longitudinal direction, whereas the aluminum sheets 6 diffuse the heat in the transverse direction. When the temperature of a particular area of the thermal insulation board changes, the aluminum bars 7 and 20 the aluminum sheets 6 can rapidly redistribute the heat. The heat accumulated locally in the thermal insulation board can be rapidly dispersed to the whole board, so as to effectively reduce the thermal stress generated due to the temperature difference, ensure the uniform temperature inside the cladding panel 1, avoid excessively low or high temperature in a single area of the cladding panel 1, and effectively absorb the heat by the phase change material inside the aluminum bars 7, which 25 is transformed from the liquid into the solid state at a low temperature to dissipate heat, thereby realizing effective thermal insulation. 2025220750   24 Jun 2026 In addition, during the installation process of a plurality of thermal insulation boards, the positions of the aluminum sheets 6 inside various thermal insulation boards are strictly kept consistent based on the standardized production process. When adjacent thermal insulation boards are spliced, the aluminum sheets 6 at the corresponding positions come into contact, thus further enhancing the heat conduction efficiency between the aluminum sheets 6. The heat transfer channels between various thermal insulation boards are constructed, so that when the local temperature of a particular thermal insulation board rises, the heat can be rapidly diffused to the adjacent thermal insulation board through the contact points of the aluminum sheets 6 to form an integral heat equalization structure, thus effectively improving the stability and durability of the building thermal insulation system. Referring to Figs. 2-5, the cladding panel 1, the outer thermal insulation board 2, the inner thermal insulation board 3, the sound insulation board 4 and the aluminum sheets 6 are all provided with the same number of a plurality of cross holes 11, and the number of cross holes 11 on the cladding panel 1 is equal to that of the aluminum bars 7, and the aluminum bars 7 each run through a corresponding cross hole 11. Referring to Figs. 2-9, the aluminum bar 7 includes a straight bar 71 fixedly connected inside the cladding panel 1 and a soft rubber sleeve 72 sleeved over the outer side of the straight bar 71, a plurality of straight notches are formed at the position where the soft rubber sleeve 72 is installed on the straight bar 71, and both the straight bar 71 and the soft rubber sleeve 72 are of a cross shape. Specifically, the straight bar 71 and the soft rubber sleeve 72 form a composite structural design and are both of a cross sectional design, and have a larger contact surface with the outer thermal insulation board 2 and the inner thermal insulation board 3, thereby improving the heat receiving and heat conductivity. The soft rubber sleeve 72 is made of high-elasticity silicon rubber, and is positioned between the straight bar 71 and to form an elastic buffer layer. When the thermal insulation board experiences thermal expansion and cold contraction due to the change of the ambient temperature, the phase change material is transformed into liquid to pass through the 10 2025220750   24 Jun 2026 straight notch and generate impact on the soft rubber sleeve 72. The soft rubber sleeve 72 can buffer the expansion through self-deformation, thereby avoiding the fracture of the straight bar 71. Referring to Figs. 1-9, a plurality of transverse grooves 41 are vertically and equidistantly formed on one side of the soundproofing board 4, a plurality of arc grooves 42 are formed inside each of the transverse groove 41, non-woven fabrics are provided on the side of the soundproofing board 4 without transverse grooves 41, and a soft rubber sleeve 72 is positioned inside the transverse groove 41. The soft rubber sleeve 72 is out of contact with the soundproofing board 4 when it is not deformed, so that the transverse groove 41 forms a transverse channel. When noise is propagated through the air, reflection occurs in the plurality of arc grooves 42, so as to improve the noise reduction effect. When the phase change material inside the soft rubber sleeve 72 is transformed from solid to liquid, its volume is increased to squeeze the soft rubber sleeve 72, so that the soft rubber sleeve 72 blocks the transverse groove 41. Specifically, the transverse grooves 41 are vertically and equidistantly distributed, so that the propagation path of the sound wave in the board can be prolonged. Meanwhile, a plurality of arc grooves 42 are further formed in each transverse groove 41. The semicircular curved surface of the arc grooves 42 and the transverse groove 41 form a concave-convex staggered three-dimensional structure. When noise is introduced, the sound wave is continuously reflected and refracted between the complex surfaces of the transverse groove 41 and the arc grooves 42. The curved surface of the arc grooves 42 can effectively disperse the sound wave, avoid resonance caused by specific frequencies, and enhance the soundproofing effect from multiple dimensions. Besides, a layer of non-woven fabric is attached to the soundproofing board 4. The layer of non-woven fabric, which has fine texture, can not only adsorb residual sound waves, but also block dust and impurities like a filter screen to protect the internal structure of the soundproofing board 4, and ensure prolonged stable operation. In addition, under normal conditions, a tiny gap is present between the soft rubber sleeve 72 and the soundproofing board 4 to ensure the clear passage through the transverse grooves 41, so that the sound wave can smoothly enter the board for reflection and noise reduction. When the 11 2025220750   24 Jun 2026 ambient temperature rises, the phase change material in the soft rubber sleeve 72 melts and expands to squeeze the soft rubber sleeve 72 into deformation, and the deformed soft rubber sleeve 72 expands outwards, so that the transverse grooves 41 are completely blocked, thereby blocking the convection heat exchange generated by the air passing through the transverse grooves 41 in the high temperature environment, and improving the thermal insulation effect. Referring to Figs. 1-9, a plurality of long vertical grooves 51 are formed on the side of the outer silicone sheet 5 away from the outer thermal insulation board 2, and the filling volume of the phase change material inside the outer silicone sheet 5 is smaller than the internal volume of the outer silicone sheet 5. With the expansion to both sides caused by the heat generated in the transverse direction, the phase change material inside the outer silicone sheets 5 arranged on both sides functions to absorb the heat from both sides of the cladding panel 1. Specifically, the long vertical groove 51 extends in the vertical direction, which can not only ensure some flexibility of the outer silicone sheet 5, but also provide a deformation buffer space when the board undergoes transverse thermal expansion. The outer silicone sheet 5 can be moderately extended along the direction of the long vertical groove 51, thereby preventing the outer silicone sheet 5 from rupturing or detaching from the board due to the rigidity constraint, so as to ensure the integrity of the sealing structure. Meanwhile, the filling amount of the phase change material inside the outer silicone sheet 5 is less than the internal volume of the outer silicone sheet 5, so that a volume change space is reserved for the solid-liquid phase change of the phase change material, and during the process of heat absorption, the phase change material is gradually transformed from solid state to liquid state, and its volume is slowly expanded to fill up the tiny gap generated due to transverse thermal expansion. In this way, the problem of local overheating of the board is effectively alleviated, while the sealing performance is maintained, thereby realizing the stable operation of the thermal insulation board in a complex temperature environment while guaranteeing the sealing performance at the connection of the board. Referring to Figs. 1-9, a flange 12 is provided on the left and right sides of the surface of the cladding panel 1 without cross holes 11, the side of the flange 12 close to the central axis of the 12 2025220750   24 Jun 2026 cladding panel 1 is provided with a rounded corner to guide rainwater to the position of the central axis of the cladding panel 1 when it rains, thereby avoiding damage to the board splicing area. The operating principle of the present disclosure is as follows: during construction, the bottom board 9 of one board is aligned with the top of another board, so that the limit bar 103 can slide into the short vertical groove 91, whereupon the upper inclined face 101 of the top of the cladding panel 1 comes into contact with the lower inclined block 92 of the bottom board 9 of the adjacent board, realizing the preliminary stable connection in the vertical direction, and thereby guiding the spring piece buckle 8 to be aligned with the bottom latch 10. The bottom latch 10 squeezes the spring piece buckle 8, and along with the continuous movement of the bottom latch 10, the spring piece buckle 8 rebounds and is mated with the bottom latch 10, forming a tight sealing layer to resist the penetration of rain, moisture and air from the outside. When the temperature is not uniform throughout the thermal insulation board, the temperature can be regulated by a heat conduction network composed of the aluminum sheets 6 and the aluminum bars 7. The vertically distributed aluminum sheets 6 conduct heat in the transverse direction; the aluminum bars 7 which run through the cross holes 11 of various components connect the aluminum sheets 6 longitudinally in series. When the local temperature of the board changes, the heat is rapidly absorbed by the aluminum sheets 6 and goes through transverse diffusion and longitudinal conduction, so that the overall temperature of the board is quickly equalized, and the thermal stress is reduced. Meanwhile, when the temperature is increased, the phase change material in the aluminum bars 7 liquefies and absorbs heat. The material in the outer silicone sheet 5 absorbs heat from both sides and expansion space is reserved, so that the expansion of both sides is relieved while sealing is maintained. When the temperature is lowered, the material in the aluminum bars 7 solidifies and releases heat, thereby realizing effective thermal insulation. Meanwhile, the transverse grooves 41 and the arc grooves 42 at one side of the soundproofing board 4 form a complex sound wave reflection structure. After the noise is introduced, it is reflected and refracted at the concave-convex surface multiple times, so that a great amount of energy is lost. The curved surface of the arc grooves 42 can disperse sound waves and avoid resonance. When the 13 2025220750   24 Jun 2026 environment is heated, the phase change material in the soft rubber sleeve 72 expands to squeeze the soft rubber sleeve 72 to block the transverse grooves 41, so that the air convection heat transfer is blocked, the stable retention is strengthened, while the heat is guided to various regions. It should be noted that the above embodiments are intended only to illustrate the technical 5 solution of the present invention rather than to be limiting, and that although the present invention has been described in detail with reference to a preferred embodiment, it should be understood by ordinary technicians in the art that the technical solution of the present invention may be modified or equivalently substituted, without departing from the spirit and scope of the technical solution of the present invention, which shall be covered by the scope of the claims of the present invention.

Claims

2025220750   24 Jun 20261. An assembled lightweight composite thermal insulation energy-saving board, comprising a cladding panel, wherein the board further comprises an outer thermal insulation board and an inner thermal insulation board fixedly connected inside the cladding panel, a soundproofing board5 fixedly connected between the outer thermal insulation board and the inner thermal insulation board, two outer silicone sheets fixedly connected to the left and right sides of the cladding panel respectively, two aluminum sheets fixedly connected inside the cladding panel, a plurality of aluminum bars fixedly connected inside the cladding panel horizontally and equidistantly, two spring piece buckles fixedly connected to the top of the cladding panel, a bottom board fixedly10 connected at the bottom end of the cladding panel, and two bottom latches fixedly connected inside the bottom board; the two aluminum sheets are respectively located between the outer thermal insulation board and the cladding panel, and between the inner thermal insulation board and the cladding panel; the aluminum bars are located between the two aluminum sheets and the two are fitted against each other; the two spring piece buckles are symmetrical about the central15 longitudinal axis of the cladding panel; the two bottom latches are symmetrical about the central longitudinal axis of the cladding panel; and phase change materials are provided inside both the aluminum bars and the outer silicone sheets.

2. The assembled lightweight composite thermal insulation energy-saving board according to claim 1, wherein the top of the cladding panel is provided as an upper inclined face, the surface of20 the cladding panel is provided with an inner concave surface which is located below the upper inclined face, the top of the cladding panel is provided with a plurality of limit bars, the left and right sides of the spring piece buckles are both provided with limit bars, and the upper inclined face is located between the two spring piece buckles.

3. The assembled lightweight composite thermal insulation energy-saving board according to25 claim 1, wherein both aluminum sheets are vertically and equidistantly arranged in plurality, one horizontal row of aluminum bars makes up a module, a plurality of modules are vertically and2025220750   24 Jun 2026equidistantly arranged, and the left and right sides of the spring piece buckles and the bottom board are located in the same plane.

4. The assembled lightweight composite thermal insulation energy-saving board according to claim 2, wherein the cladding panel, the outer thermal insulation board, the inner thermal insulation5 board, the soundproofing board and the aluminum sheets are all provided with the same number of a plurality of cross holes, the number of the cross holes on the cladding panel is equal to the number of aluminum bars, and each of the aluminum bars penetrates through a plurality of overlapping and intercommunicating cross holes.

5. The assembled lightweight composite thermal insulation energy-saving board according to10 claim 3, wherein the aluminum bar comprises a straight bar fixedly connected inside the cladding panel and a soft rubber sleeve sleeved over the outer side of the straight bar, a plurality of straight notches are formed at the position where the soft rubber sleeve is installed on the straight bar, and both the straight bar and the soft rubber sleeve are of a cross shape.

6. The assembled lightweight composite thermal insulation energy-saving board according to15 claim 2, wherein two short vertical grooves are formed in the bottom board, and are symmetrical about the central longitudinal axis of the cladding panel, the bottom latches are located inside the short vertical grooves, and a lower inclined block is fixedly arranged in the bottom board.

7. The assembled lightweight composite thermal insulation energy-saving board according to claim 5, wherein a plurality of transverse grooves are formed on one side of the soundproofing20 board vertically and equidistantly, a plurality of arc grooves are formed inside each of the transverse grooves, non-woven fabrics are provided on the side of the soundproofing board without transverse grooves, the soft rubber sleeve is located inside the transverse grooves, and the soft rubber sleeve is out of contact with the soundproofing board when it is not deformed.

8. The assembled lightweight composite thermal insulation energy-saving board according to25 claim 6, wherein the surfaces of both the upper inclined face and the lower inclined block have gone through high friction treatment, the length and inclination angle of the lower inclined block2025220750   24 Jun 2026and the upper inclined face are the same, and the vertical length of the bottom board is equal to the distance from the inner concave surface to the top end of the cladding panel.

9. The assembled lightweight composite thermal insulation energy-saving board according to claim 1, wherein a plurality of long vertical grooves are formed on the side of the outer silicone 5 sheet away from the outer thermal insulation board, and the filling volume of the phase change material inside the outer silicone sheet is smaller than the internal volume of the outer silicone sheet.

10. The assembled lightweight composite thermal insulation energy-saving board according to claim 4, wherein a flange is provided on the left and right sides of the surface of the cladding panel10 without cross holes, and the side of the flange close to the central longitudinal axis of the cladding panel is provided with a rounded corner.

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