A compartmentalized structure and function integrated composite metal plate

Abstract

The application provides a kind of warehouse type structure function integration composite metal sheet, including upper panel, lower panel and the core function layer being arranged between upper panel and lower panel.Core function layer is provided with space truss, space truss includes several discrete connection units and support web, and discrete connection unit is fixedly connected with support web.Space truss is fixedly connected to upper panel and lower panel respectively, and core function layer is divided into multiple closed compartments not communicating with each other.Through space truss formed by discrete connection unit and support web, overall force system is formed, and bending stiffness and shear strength are greatly improved.Core layer is divided into closed compartments not communicating with each other, and on-site cutting only damages a single compartment, and adjacent compartments are sealed and unaffected by function, solving the problem of sealing failure and function loss after cutting of traditional sheet.Adapting to flexible cutting and non-standard size splicing on construction site, industrial production and on-site construction requirements are considered.

Description

Technical Field

[0001] This invention relates to the field of composite metal sheet technology, and in particular to a compartmentalized, integrated composite metal sheet. Background Technology

[0002] With the rapid development of industrialized construction, prefabricated buildings, and lightweight structural components, sandwich composite panels, due to their advantages of being lightweight, high-strength, heat-insulating, and sound-insulating, have been widely used in building envelopes, industrial plants, cold chain warehouses, and rail transportation. Most existing composite panels employ a sandwich structure combining upper and lower panels with a central cavity. The central cavity primarily provides heat insulation, sound insulation, and weight reduction, while the upper and lower panels bear the structural load.

[0003] Patent application number 202110333306.9 discloses a building exterior wall insulation board that can suppress the spread of fire, including a board body, a protective frame, multiple fireproof balls and multiple blasting balls. The protective frame is set at the edge of the board body and can be used to protect the board body as a whole. Multiple fireproof balls are evenly distributed inside the board body and are filled with flame-retardant powder. When the fireproof balls are heated, they expand and disperse the flame-retardant powder. Multiple blasting balls are evenly distributed inside the board body and are filled with inert gas. When the blasting balls are heated, they expand and explode.

[0004] In practical applications and industrial production, this type of sandwich composite panel generally suffers from the following technical defects: Insufficient mechanical properties and poor overall stability: Traditional hollow core panels lack effective internal support structures or only use discrete connection units to fix the upper and lower panels. The panels and core layer have weak collaborative stress-bearing capacity, low bending stiffness and shear strength, and are prone to local buckling and overall instability under load, making it impossible to simultaneously meet the requirements of load-bearing and large-span use. Although some solid core panels have better mechanical properties, they are too heavy and have low material utilization, making it difficult to achieve a balance between lightweight and high strength.

[0005] Poor adaptability to on-site cutting and insufficient construction flexibility: Most existing hollow panels are integrally connected hollow structures. On-site cutting will directly destroy the continuity of the cavity, resulting in failure of internal sealing and complete loss of functions such as heat insulation, sound insulation and energy storage. Moreover, the overall structural integrity of the panel is destroyed after cutting, making it prone to deformation and cracking. It cannot meet the needs of flexible cutting and non-standard size splicing on the construction site, which restricts the adaptability of industrial production to on-site construction.

[0006] Therefore, developing a composite board that combines high strength and stability with on-site cutting capability has become a pressing technical problem to be solved in this field. Summary of the Invention

[0007] This invention provides a compartmentalized, integrated composite metal sheet to address the issues of insufficient overall stability and adaptability to cutting in existing technologies.

[0008] This invention provides a compartmentalized, integrated composite metal sheet, comprising an upper panel, a lower panel, and a core functional layer disposed between the upper and lower panels; The core functional layer is provided with a spatial truss, which includes several discrete connection units and a supporting web, and the discrete connection units are fixedly connected to the supporting web. The space trusses are fixedly connected to the upper and lower panels respectively, dividing the core functional layer into multiple unconnected enclosed compartments.

[0009] Furthermore, the supporting web and the discrete connecting unit are fixedly connected to the lower panel through integral molding.

[0010] Furthermore, the space truss structure is an orthogonal anisotropic or isotropic lattice structure.

[0011] Furthermore, the sealed compartment is filled with one of the following: heat insulation material, sound absorption material, and phase change energy storage material.

[0012] Furthermore, the thermal insulation material includes one or more of thermal insulation cotton, aerogel, and foam material; the sound-absorbing material includes one or more of centrifugal glass wool or melamine foam; and the phase change energy storage material includes one or more of paraffin wax, fatty acids, and hydrated salts.

[0013] Furthermore, the upper panel and the lower panel are one of a solid metal plate, a foamed metal plate, or a fiber-reinforced composite material plate.

[0014] Furthermore, the supporting web extends in a single direction and the supporting webs are parallel to each other.

[0015] Furthermore, the supporting web includes a plurality of first webs and a plurality of second webs, wherein the plurality of first webs are parallel to each other, the plurality of second webs are parallel to each other, and the first webs and second webs are staggered.

[0016] Furthermore, a partition plate is fixedly connected inside the sealed compartment, which divides the sealed compartment into independent spaces.

[0017] The beneficial effects of this invention are as follows: 1. By forming a spatial truss consisting of discrete connecting units and supporting webs, an integrated load-bearing system is created, significantly improving bending stiffness and shear strength, avoiding local buckling and overall instability, and meeting the requirements for load-bearing and large-span applications. At the same time, the supporting webs, discrete connecting units, and panels are integrally formed, eliminating weak points at splicing points, eliminating interface losses in load transfer, and enhancing the overall integrity and rigidity of the structure.

[0018] 2. The core layer is divided into unconnected, sealed compartments. On-site cutting only damages a single compartment, while the sealing and function of adjacent compartments remain unaffected, solving the problem of sealing failure and functional loss after cutting traditional sheet materials. It is adaptable to flexible cutting and non-standard size splicing on construction sites, balancing the needs of industrial production and on-site construction.

[0019] 3. The passageways between sealed and enclosed compartments can be independently filled with heat-insulating, sound-absorbing, and phase-change energy storage materials, achieving integrated functions such as load-bearing, heat insulation, sound insulation, and temperature control. Different compartments can be filled with different functional materials to achieve functional zoning, expanding applications to multiple scenarios such as construction, cold chain logistics, and rail transportation. Adding partitions within the compartments can further subdivide the space, minimizing the impact of localized damage and increasing functional stability. Attached Figure Description

[0020] Figure 1 This is an exploded view of the composite metal sheet of the present invention.

[0021] Figure 2 This is a schematic diagram of the spatial truss structure of the present invention when the supporting web extends in a single direction.

[0022] Figure 3 This is a schematic diagram of the structure of the first web and the second web of the present invention.

[0023] Figure 4 This is a cross-sectional schematic diagram of the present invention when filled with a single functional material.

[0024] Figure 5 This is a cross-sectional schematic diagram of the present invention when filled with three functional materials.

[0025] Figure 6 This is a schematic diagram of the connection relationship when the partition plate of the present invention is set to a horizontal state.

[0026] Figure 7 This is a schematic diagram of the connection relationship when the partition plate of the present invention is set to an inclined state.

[0027] Figure 8 This is a schematic diagram of the structure of the present invention when a channel is provided between two adjacent sealed compartments.

[0028] Figure label: 1. Top panel; 2. Bottom panel; 3. Space truss; 31. Discrete connection unit; 32. Supporting web; 33. First web; 34. Second web; 4. Sealed compartment; 5. Functional material; 51. Thermal insulation material; 52. Sound absorption material; 53. Phase change energy storage material; 6. Partition plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0030] The terms "first" and "second" in the specification and claims of this invention may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] The following is combined with Figures 1-6 The present invention describes a compartmentalized, integrated composite metal sheet comprising an upper panel 1, a lower panel 2, and a core functional layer disposed between the upper panel 1 and the lower panel 2. A spatial truss 3 is disposed within the core functional layer. The spatial truss 3 includes several discrete connecting units 31 and supporting webs 32, with the discrete connecting units 31 fixedly connected to the supporting webs 32. The spatial truss 3 is fixedly connected to both the upper panel 1 and the lower panel 2, dividing the core functional layer into multiple non-interconnected, enclosed compartments 4.

[0033] Specifically, such as Figure 1As shown, the composite metal sheet consists of an upper panel 1, a lower panel 2, and a core functional layer. The core functional layer contains a built-in space truss 3, which includes discrete connection units 31 and supporting webs 32, fixedly connected. The discrete connection units 31 are arranged in an array of columns, vertically fixed between the upper panel 1 and the lower panel 2. Supporting webs 32 are fixedly connected between adjacent discrete connection units 31, vertically fixed between the upper panel 1 and the lower panel 2, and forming a seal with both panels, thus allowing the space truss 3 to divide the core functional layer into multiple unconnected, sealed compartments 4.

[0034] The upper panel 1 and lower panel 2 bear external loads. The space truss 3, through discrete connection units 31 and supporting web 32, forms an integrated load-bearing system, evenly distributing the load to the upper and lower panels to form a stable load-bearing structure. This improves the bending and shear resistance of the panels while creating an independent, sealed compartment 4. The sealed compartment 4 can hold functional materials and is not interconnected with other compartments. This allows the product to be cut to size, and the damage to a single compartment does not affect the functional integrity of adjacent compartments, resolving the contradiction between industrialized production and flexible on-site construction.

[0035] Furthermore, the supporting web plate 32 and the discrete connecting unit 31 are fixedly connected to the lower panel 2 by integral molding.

[0036] Specifically, the supporting web 32 and discrete connecting units 31 can be integrally formed with the lower panel 2 through die casting, injection molding, roll forming, or 3D printing. After forming, the supporting web 32, discrete connecting units 31, and lower panel 2 form a rigid whole, with no interface loss in load transfer. When the plate is under stress, each component deforms synchronously and bears the load collaboratively. This eliminates weak points in the splicing, improves the overall structure and strength, and enhances the sealing performance of the sealed compartment 4.

[0037] Furthermore, the space truss 3 structure is an orthogonal anisotropic or isotropic lattice structure.

[0038] Specifically, the space truss 3 adopts an orthogonal anisotropic lattice structure or an isotropic lattice structure. The isotropic structure is subjected to uniform force in any direction; the orthogonal anisotropic structure can enhance stiffness in the main force direction. The space truss structure can be customized according to the application scenario to meet its mechanical performance.

[0039] Furthermore, the sealed compartment 4 is filled with one or more of the following: heat insulation material 51, sound absorption material 52, and phase change energy storage material 53.

[0040] Furthermore, the thermal insulation material 51 includes one or more of thermal insulation cotton, aerogel, and foam material; the sound-absorbing material 52 includes one or more of centrifugal glass wool or melamine foam; and the phase change energy storage material 53 includes one or more of paraffin wax, fatty acids, and hydrated salts.

[0041] Specifically, by filling the sealed compartments 4 with different functional materials 5, the composite metal sheet is endowed with different functions. The functional materials 5 can be configured as heat insulation material 51, sound absorption material 52, and phase change energy storage material 53. Heat insulation material 51 blocks heat conduction, sound absorption material 52 absorbs sound waves to reduce noise, and phase change energy storage material 53 absorbs and releases heat when the temperature changes, regulating the surface temperature of the sheet. Depending on the needs, a single functional material 5 or multiple composite materials can be filled into the sealed compartments 4 simultaneously. Furthermore, since each sealed compartment 4 is independent of the others, damage to a single compartment during cutting does not affect the functional integrity of adjacent compartments.

[0042] In some specific embodiments, when filled with a single functional material 5, such as Figure 4 As shown, functional material 5 is one of thermal insulation material 51, sound-absorbing material 52, and phase change energy storage material 53. Different compartments can be filled with different functional materials 5 to achieve functional zoning and expand applications in multiple scenarios such as construction, cold chain logistics, and rail transportation.

[0043] In other specific embodiments, when three functional materials 5 are filled simultaneously, such as Figure 5 As shown, the functional materials 5 are arranged sequentially from the outside to the inside as heat insulation material 51, sound absorption material 52, and phase change energy storage material 53. The phase change energy storage material 53 is located close to the inside of the building to maintain a constant temperature inside the building. The phase change energy storage material 53 is sealed with a metal tube or a polymer film bag to prevent leakage if the phase change energy storage material 53 melts.

[0044] Furthermore, the upper panel 1 and the lower panel 2 are one of a solid metal sheet, an open-cell foam metal sheet, or a fiber-reinforced composite material sheet. A solid metal sheet provides high load-bearing capacity; an open-cell foam metal sheet provides auxiliary sound insulation and breathability; and a fiber-reinforced composite material sheet achieves lightweight and corrosion resistance. The panels can be selected as needed to expand application scenarios.

[0045] Furthermore, in some alternative embodiments, the supporting web 32 extends in a single direction and the supporting web 32 are parallel to each other.

[0046] Specifically, such as Figure 3 As shown, the supporting web 32 extends parallel in a single direction, forming a long, narrow, enclosed cell 4. This results in different mechanical properties in the transverse and longitudinal directions of the composite metal sheet, thus achieving an orthotropic lattice structure. The unidirectional web provides the main bending support along its length, and the cells are parallel strips, with the force transmitted along the web direction. This unidirectional reinforcement of the composite metal sheet is suitable for unidirectional span components.

[0047] Furthermore, the supporting web 32 includes a plurality of first webs 33 and a plurality of second webs 34, the plurality of first webs 33 being parallel to each other, the plurality of second webs 34 being parallel to each other, and the first webs 33 and second webs 34 being staggered.

[0048] Specifically, in some alternative embodiments, such as Figure 2 As shown, multiple parallel first web plates 33 and second web plates 34 are interwoven to form a matrix-type closed compartment 4. When the first web plates 33 and second web plates 34 are perpendicular to each other, a closed compartment 4 with a rectangular cross-section is formed; when the first web plates 33 and second web plates 34 are arranged at an angle and staggered, a closed compartment 4 with a rhomboid cross-section is formed. This ensures that the mechanical properties of the composite metal sheet are consistent in all directions, thereby achieving an isotropic lattice structure. The bidirectional web plates form a grid truss, which can resist bending moments and shear forces in both the transverse and longitudinal directions, and the load is uniformly transferred in both directions. This provides bidirectional reinforcement to the composite metal sheet, resulting in better mechanical properties, while also offering greater cutting flexibility, as cutting in any direction does not damage adjacent compartments.

[0049] Specifically, in some alternative embodiments, such as Figure 8 As shown, multiple first web plates 33 and second web plates 34 surround each other to form independent sealed compartments 4. Channels are provided between adjacent sealed compartments 4, and sealed compartments 4 of different shapes can be designed as needed. Functional materials 5 can be filled into the sealed compartments 4 and the channels between them. The functional material 5 is one of the following: heat insulation material 51, sound absorption material 52, or phase change energy storage material 53. Filling different functional materials 5 in different locations according to different application scenarios can achieve composite functionality of the metal sheet.

[0050] Furthermore, in some specific embodiments, such as Figure 6 , Figure 7 As shown, a partition plate 6 is added inside the sealed compartment 4, further dividing the single compartment into multiple independent small spaces. This further improves the strength of the composite metal plate, while each small space can be independently filled with different functional materials 5, and local damage only affects the small space, resulting in more stable overall function.

[0051] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A compartmentalized, integrated composite metal sheet, characterized in that: It includes a top panel, a bottom panel, and a core functional layer located between the top panel and the bottom panel; The core functional layer is provided with a spatial truss, which includes several discrete connection units and a supporting web, and the discrete connection units are fixedly connected to the supporting web. The space trusses are fixedly connected to the upper and lower panels respectively, dividing the core functional layer into multiple unconnected enclosed compartments.

2. The compartmentalized structural functional integrated composite metal sheet according to claim 1, characterized in that: The supporting web and the discrete connecting unit are fixedly connected to the lower panel by integral molding.

3. The compartmentalized structural functional integrated composite metal sheet according to claim 1, characterized in that: The space truss structure is an orthogonal anisotropic or isotropic lattice structure.

4. The compartmentalized structural functional integrated composite metal sheet according to claim 1, characterized in that: The sealed compartment is filled with one or more of the following: heat insulation material, sound absorption material, and phase change energy storage material.

5. The compartmentalized structural functional integrated composite metal sheet according to claim 4, characterized in that: The thermal insulation material includes one or more of thermal insulation cotton, aerogel, and foam material; the sound absorption material includes one or more of centrifugal glass wool or melamine foam; and the phase change energy storage material includes one or more of paraffin wax, fatty acids, and hydrated salts.

6. The compartmentalized structural functional integrated composite metal sheet according to claim 1, characterized in that: The upper and lower panels are one of solid metal plates, foam metal plates, or fiber-reinforced composite material plates.

7. The compartmentalized structural functional integrated composite metal sheet according to claim 1, characterized in that: The supporting webs extend in a single direction and are parallel to each other.

8. The compartmentalized structural functional integrated composite metal sheet according to claim 1, characterized in that: The supporting web includes a plurality of first webs and a plurality of second webs, wherein the plurality of first webs are parallel to each other, the plurality of second webs are parallel to each other, and the first webs and second webs are staggered.

9. The compartmentalized structural functional integrated composite metal sheet according to claim 1, characterized in that: The sealed compartment is also fixedly connected to a partition plate, which divides the sealed compartment into independent spaces.

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