Door panel with soundproofing and deformation resistance

Abstract

The utility model discloses a door panel with sound insulation and anti-deformation function, including aluminium honeycomb core board and the first inner layer medium density fiberboard and second inner layer medium density fiberboard of pasting to its thickness both sides, aluminium honeycomb core board inside is provided with honeycomb core, the upper frame, left frame, lower frame and right frame form the plate structure after covering aluminium honeycomb core board, and the thickness both sides of plate structure are respectively bonded with the first outer layer medium density fiberboard and second outer layer medium density fiberboard. The utility model discloses an integrated door panel, and subsequent still can carry out its paint spraying, increase handle, hinge, hinge joint etc. processing, wide application range, sound insulation effect is good, has stronger anti-deformation ability, can make up to 3000mm's door panel while not using straightener.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and more specifically, to a door panel with sound insulation and anti-deformation functions. Background Technology

[0002] Door panels typically refer to the flat panels on a door leaf. In the furniture industry, door panels can be used to separate two different spaces. In recent years, the height of door panels has gradually increased due to factors such as rising building heights and individual consumer needs. Extra-tall door panels can enhance the overall integrity and aesthetics of a space. With the booming development of the custom furniture market, consumer demand for large-size, integrated door panels is also increasing, thus becoming a new market trend.

[0003] Currently, the height of most door panels on the market is limited to within 2700mm. When users want to increase the height of the door panel, the manufacturing process becomes more difficult, including but not limited to C-bend deformation of the door panel and the need to add an extra straightener inside the door panel. These problems limit users' requirements for high-quality, high-performance door panels.

[0004] Prior art 1 (application number: 201821343583.8; application date: 2018.08.21) discloses an aluminum honeycomb core wood composite panel, with reference to... Figure 1 As shown, the aluminum honeycomb core wood composite panel includes an aluminum honeycomb core 100' located in the middle, and wood panels 200' bonded to the two sides of the aluminum honeycomb core 100'. The thickness of the aluminum honeycomb core 100' is 10mm to 40mm, the thickness of the wood panels 200' is 3mm to 15mm, the side length of the honeycomb mesh on the aluminum honeycomb core 100' is 3mm to 7mm, and the wall thickness of each side of the honeycomb mesh on the aluminum honeycomb core 100' is 0.03mm to 0.1mm. Wood strips 400' sandwiched between the two wood panels 200' are provided along the long edges on both sides or the four perimeter of the aluminum honeycomb core 100'. The wood strips 400' are bonded to the wood panels 200' by a thermoplastic film (such as formaldehyde-free film-like wood adhesive 300'). The various structures in this design are only connected together by thermoplastic film, resulting in a mediocre connection. They are prone to deformation under significant external forces. Furthermore, the design lacks a four-sided frame, making it impossible to install hinges, handles, or other structural components, thus limiting its application scope.

[0005] Prior art 2 (application number: 202023293712.7; application date: 2020.12.31) discloses an easy-to-install household soundproof door panel, with reference to... Figure 2As shown, this easy-to-install household soundproof door panel includes a door panel body 1', two composite panels 3' are fixedly installed inside the door panel body 1', and a single honeycomb aluminum panel 4' is fixedly installed between the two composite panels 3'. This design is mainly used for interior door panels and cannot accommodate hinges, handles, or other structures, resulting in a narrow application range. Furthermore, the connections between the various structures are not tight enough, making them prone to deformation under significant external forces.

[0006] Therefore, how to provide an integrated door panel with strong resistance to deformation and capable of installing hinges, handles and other structures is a technical problem that urgently needs to be solved in this field. Utility Model Content

[0007] In view of this, the present invention provides a door panel with sound insulation and anti-deformation functions to solve the problems of door panels having general anti-deformation ability and being unable to install hinges, handles and other structures.

[0008] This application provides a door panel with sound insulation and deformation resistance functions, including an inner core and a frame covering the inner core;

[0009] The inner core includes an aluminum honeycomb core panel. Along the thickness direction of the aluminum honeycomb core panel, the aluminum honeycomb core panel includes an upper plate, a middle plate, and a lower plate connected in sequence. The upper plate and the lower plate are both rectangular flat plates, and the middle plate is a cuboid structure. The upper plate and the lower plate are parallel to each other and symmetrical about the middle plate. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projections of the upper plate, the middle plate, and the lower plate are all rectangular. The orthographic projection of the upper plate coincides with the orthographic projection of the lower plate. The orthographic projection of the middle plate is located within the orthographic projection of the lower plate, and the edge of the orthographic projection of the middle plate does not coincide with the edge of the orthographic projection of the lower plate.

[0010] The aluminum honeycomb core panel has periodically arranged honeycomb cores inside. The honeycomb cores are evenly filled between part of the upper plate near the lower plate, the middle plate, and part of the lower plate near the upper plate. The honeycomb core has a regular hexagonal hollow structure.

[0011] The surface of the upper plate away from the middle plate is bonded with a first inner layer of medium-density fiberboard, and the surface of the lower plate away from the middle plate is bonded with a second inner layer of medium-density fiberboard. The density range of the first inner layer of medium-density fiberboard and the second inner layer of medium-density fiberboard is 0.5 g / cm³ to 0.88 g / cm³. The first inner layer of medium-density fiberboard and the second inner layer of medium-density fiberboard have the same structure. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the first inner layer of medium-density fiberboard, the orthographic projection of the upper plate, the orthographic projection of the lower plate, and the orthographic projection of the second inner layer of medium-density fiberboard completely overlap.

[0012] The frame includes a top frame, a left frame, a bottom frame, and a right frame connected end to end. The top and bottom frames are set opposite each other and are parallel to each other. The left and right frames are set opposite each other and are parallel to each other. The top and left frames are perpendicular to each other. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the top frame, the left frame, the bottom frame, and the right frame are all approximately isosceles trapezoids.

[0013] The upper frame includes the upper frame body, which is a flat structure. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the upper frame body is an isosceles trapezoid. The side of the upper frame body closer to the aluminum honeycomb core panel is the upper bottom of the upper frame, and the side of the upper frame body farther from the aluminum honeycomb core panel is the lower bottom of the upper frame. The side of the upper frame body closer to the left frame is the left waist of the upper frame, and the side of the upper frame body farther from the left frame is the right waist of the upper frame. The upper bottom and the lower bottom of the upper frame are parallel to each other, and along the short side direction of the aluminum honeycomb core panel, the length of the upper bottom of the upper frame is less than the length of the lower bottom of the upper frame. The short side direction of the aluminum honeycomb core panel intersects with the thickness direction of the aluminum honeycomb core panel.

[0014] An upper protrusion is provided on the side of the upper frame away from the main body of the upper frame. The upper protrusion is integrally formed with the main body of the upper frame. The upper protrusion is strip-shaped and extends along the short side of the aluminum honeycomb core panel. The thickness of the upper protrusion is less than the thickness of the main body of the upper frame along the thickness direction of the aluminum honeycomb core panel. The length of the upper protrusion is less than the length of the main body of the upper frame along the short side of the aluminum honeycomb core panel. An U-shaped upper slot is provided on the side of the aluminum honeycomb core panel near the upper frame to cooperate with the upper protrusion. The upper slot is formed by the upper plate, the middle plate and the lower plate. The thickness of the upper slot is equal to the distance between the upper plate and the lower plate along the thickness direction of the aluminum honeycomb core panel. The upper slot is located on the side of the aluminum honeycomb core panel near the upper frame, and the opening of the upper slot faces the upper protrusion. The upper protrusion is inserted into the upper slot.

[0015] A left-side protrusion is provided on the left side of the upper frame, away from the main body of the upper frame. The left-side protrusion is integrally formed with the main body of the upper frame. The shape of the left-side protrusion is strip-shaped, and the extension direction of the left-side protrusion is the same as the extension direction of the left side of the upper frame. Along the short side of the aluminum honeycomb core panel, the orthographic projection of the left-side protrusion is located inside the orthographic projection of the main body of the upper frame. A right-side protrusion is provided on the right side of the upper frame, away from the main body of the upper frame. The right-side protrusion is integrally formed with the main body of the upper frame. The shape of the right-side protrusion is strip-shaped, and the extension direction of the right-side protrusion is the same as the extension direction of the right side of the upper frame. Along the short side of the aluminum honeycomb core panel, the orthographic projection of the right-side protrusion is located inside the orthographic projection of the main body of the upper frame.

[0016] The left frame includes the main body of the left frame, which is a flat structure. The orthographic projection of the main body of the left frame along the thickness direction of the aluminum honeycomb core panel is an isosceles trapezoid. The length of the main body of the left frame along the long side of the aluminum honeycomb core panel is greater than the length of the main body of the upper frame along the short side of the aluminum honeycomb core panel. The long side of the aluminum honeycomb core panel intersects the short side and the thickness direction of the aluminum honeycomb core panel in pairs. The side of the main body of the left frame closer to the aluminum honeycomb core panel is the upper bottom of the left frame, and the side of the main body of the left frame away from the aluminum honeycomb core panel is the lower bottom of the left frame. The side of the main body of the left frame closer to the upper frame is the upper waist of the left frame, and the side of the main body of the left frame away from the upper frame is the lower waist of the left frame. The upper bottom and the lower bottom of the left frame are parallel to each other, and along the long side of the aluminum honeycomb core panel, the length of the upper bottom of the left frame is less than the length of the lower bottom of the left frame.

[0017] A left protrusion is provided on the bottom side of the left frame away from the main body of the left frame. The left protrusion and the main body of the left frame are integrally formed. The shape of the left protrusion is strip-shaped. The left protrusion extends along the length direction of the aluminum honeycomb core panel. Along the thickness direction of the aluminum honeycomb core panel, the thickness of the left protrusion is less than the thickness of the main body of the left frame. Along the long side of the aluminum honeycomb core panel, the length of the left protrusion is less than the length of the main body of the left frame. A C-shaped left slot is provided on the side of the aluminum honeycomb core panel near the left frame to cooperate with the left protrusion. The left slot is formed by the upper plate, middle plate and lower plate. Along the thickness direction of the aluminum honeycomb core panel, the thickness of the left slot is equal to the distance between the upper plate and the lower plate. The left slot is located on the side of the aluminum honeycomb core panel near the left frame, and the opening of the left slot faces the left protrusion. The left protrusion is inserted into the left slot, and the left slot is connected to the upper slot.

[0018] The upper left side of the left frame has a groove that matches the upper left protrusion. The groove and the main body of the left frame are integrally formed. The shape of the groove is the same as that of the upper left protrusion. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the groove is within the orthographic projection of the main body of the left frame. The upper left protrusion is inserted into the groove. The lower left side of the left frame has a groove on the side away from the main body. The groove and the main body of the left frame are integrally formed. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the groove is within the orthographic projection of the main body of the left frame. The groove is used to connect the left and lower frames.

[0019] The bottom and top borders are symmetrical about the center line of the aluminum honeycomb core panel, and the right and left borders are symmetrical about the center line of the aluminum honeycomb core panel.

[0020] The top frame, bottom frame, left frame, right frame, aluminum honeycomb core panel, first inner layer medium density fiberboard and second inner layer medium density fiberboard are spliced ​​into a plate structure. The first inner layer medium density fiberboard is bonded to the side away from the aluminum honeycomb core panel. The second inner layer medium density fiberboard is bonded to the side away from the aluminum honeycomb core panel. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the first outer layer medium density fiberboard, the orthographic projection of the second outer layer medium density fiberboard and the orthographic projection of the plate structure completely coincide. The density range of the first outer layer medium density fiberboard and the second outer layer medium density fiberboard is 0.5g / cm³ to 0.88g / cm³.

[0021] Compared with the prior art, the door panel with sound insulation and anti-deformation functions provided by this utility model achieves at least the following beneficial effects:

[0022] This invention provides a door panel with sound insulation and deformation resistance, which differs from existing door panels in that it alters the panel's structure. Using an aluminum honeycomb core panel as the core, it adds two inner layers of medium-density fiberboard (MDF), four frame layers, and two outer layers of MDF. These structures are tightly connected to form an integrated door panel, making it less susceptible to deformation from external forces. The panel can also be painted and have handles, hinges, and other components added. This sound insulation and deformation-resistant door panel has a wide range of applications, including higher-end furniture. The aluminum honeycomb core panel contains periodically arranged hexagonal honeycomb cores. The hollow structure, with its enclosed cavities between regular hexagonal units, effectively blocks heat transfer and sound wave propagation, providing sound and heat insulation. This honeycomb structure offers excellent sound insulation while maximizing the strength of the door panel, exhibiting strong resistance to deformation. Using aluminum honeycomb core panels eliminates the need for straighteners inside the door panel to prevent deformation. The height of this sound-insulating and deformation-resistant door panel can be increased according to user needs, exceeding the existing 2700mm standard and reaching up to 3000mm. This sound-insulating and deformation-resistant door panel offers high space utilization efficiency, excellent visual appeal, and a sophisticated overall aesthetic, making it particularly advantageous in large spaces and minimalist environments.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all the technical effects described above at the same time.

[0024] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0026] Figure 1 This is a cross-sectional view of an aluminum honeycomb core wood composite panel provided by prior art 1;

[0027] Figure 2 This is a perspective structural diagram of the door panel body in a household soundproof door panel that is easy to install, provided by prior art 2;

[0028] Figure 3 This is an exploded view of a door panel with sound insulation and anti-deformation functions provided by this utility model from one direction;

[0029] Figure 4 This is a cross-sectional view of an aluminum honeycomb core panel provided by this utility model;

[0030] Figure 5 This is an exploded view from another direction of a door panel with sound insulation and anti-deformation functions provided by this utility model;

[0031] Figure 6 yes Figure 3 Enlarged view of point a in the middle;

[0032] Figure 7 This is a schematic diagram of the structure of the upper frame provided by this utility model;

[0033] Figure 8 This is a schematic diagram of the structure of the left frame provided by this utility model;

[0034] Figure 9 yes Figure 3 Enlarged view of point b in the middle;

[0035] Figure 10 yes Figure 3 Enlarged view of point c in the middle;

[0036] Figure 11 yes Figure 5 A cross-sectional view along the AA' direction of the door panels with sound insulation and anti-deformation functions after splicing;

[0037] Figure 12 yes Figure 11 A magnified view of point d in the middle. Detailed Implementation

[0038] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0039] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0040] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0041] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0043] Reference Figures 3-12 , Figure 3 This is an exploded view of a door panel with sound insulation and anti-deformation functions provided by this utility model from one direction; Figure 4 This is a cross-sectional view of an aluminum honeycomb core panel provided by this utility model; Figure 5 This is an exploded view from another direction of a door panel with sound insulation and anti-deformation functions provided by this utility model; Figure 6 yes Figure 3 Enlarged view of point a in the middle; Figure 7 This is a schematic diagram of the structure of the upper frame provided by this utility model; Figure 8 This is a schematic diagram of the structure of the left frame provided by this utility model; Figure 9 yes Figure 3 Enlarged view of point b in the middle; Figure 10 yes Figure 3 Enlarged view of point c in the middle; Figure 11 yes Figure 5 A cross-sectional view along the AA' direction of the door panels with sound insulation and anti-deformation functions after splicing; Figure 12 yes Figure 11Enlarged view at point d. This embodiment provides a door panel with sound insulation and deformation resistance functions, including an inner core 1 and a frame 2 covering the inner core; the inner core 1 includes an aluminum honeycomb core panel 11. Along the thickness direction X of the aluminum honeycomb core panel 11, the aluminum honeycomb core panel 11 includes an upper plate 111, a middle plate 112, and a lower plate 113 connected in sequence. The upper plate 111 and the lower plate 113 are both rectangular flat plates, and the middle plate 112 is a cuboid structure. The upper plate 111 and the lower plate 113 are parallel to each other and symmetrical about the middle plate 112. Along the thickness direction X of the aluminum honeycomb core panel 11, the upper plate 111 is projected onto the center of the frame. The orthographic projections of the upper plate 111, the middle plate 112, and the lower plate 113 are all rectangles. The orthographic projection of the upper plate 111 coincides with the orthographic projection of the lower plate 113. The orthographic projection of the middle plate 112 is located within the orthographic projection of the lower plate 113, and the edge of the orthographic projection of the middle plate 112 does not coincide with the edge of the orthographic projection of the lower plate 113. The aluminum honeycomb core panel 11 has periodically arranged honeycomb cores 110 inside. The honeycomb cores 110 are uniformly filled between part of the upper plate 111 near the lower plate 113, part of the middle plate 112, and part of the lower plate 113 near the upper plate 111. The honeycomb cores 110 are regular hexagons. Hollow structure; a first inner layer of medium-density fiberboard 121 is bonded to the surface of the upper plate 111 away from the middle plate 112, and a second inner layer of medium-density fiberboard 122 is bonded to the surface of the lower plate 113 away from the middle plate 112. The density range of the first inner layer of medium-density fiberboard 121 and the second inner layer of medium-density fiberboard 122 is 0.5 g / cm³ to 0.88 g / cm³. The first inner layer of medium-density fiberboard 121 and the second inner layer of medium-density fiberboard 122 have the same structure. Along the thickness direction X of the aluminum honeycomb core panel 11, the orthographic projection of the first inner layer of medium-density fiberboard 121 and the upper plate... The orthographic projections of 111, 113, and 122 of the second inner medium-density fiberboard completely overlap; the frame 2 includes an upper frame 21, a left frame 22, a lower frame 23, and a right frame 24 connected end to end in sequence. The upper frame 21 and the lower frame 23 are arranged opposite each other and parallel to each other, the left frame 22 and the right frame 24 are arranged opposite each other and parallel to each other, the upper frame 21 and the left frame 22 are perpendicular to each other, along the thickness direction X of the aluminum honeycomb core panel 11, the orthographic projections of the upper frame 21, the left frame 22, the lower frame 23 and the right frame 24 are all approximately isosceles trapezoids.The upper frame 21 includes an upper frame body 210, which is a flat plate structure extending along the thickness direction X of the aluminum honeycomb core panel 11. The orthographic projection of the upper frame body 210 is an isosceles trapezoid. The side of the upper frame body 210 closest to the aluminum honeycomb core panel 11 is the upper bottom of the upper frame, and the side of the upper frame body 210 furthest from the aluminum honeycomb core panel 11 is the lower bottom of the upper frame. The side of the upper frame body 210 closest to the left frame 22 is the left waist of the upper frame, and the side of the upper frame body 210 furthest from the left frame 22 is the right waist of the upper frame. The upper bottom and the lower bottom of the upper frame are parallel to each other and extend along the short side direction Y of the aluminum honeycomb core panel 11. The length of the upper bottom of the upper frame is less than the length of the lower bottom of the upper frame. The short side direction Y of the aluminum honeycomb core panel 11 intersects with the thickness direction X of the aluminum honeycomb core panel 11; an upper protrusion 211 is provided on the side of the upper frame away from the upper frame body 210. The upper protrusion 211 and the upper frame body 210 are integrally formed. The upper protrusion 211 is strip-shaped and extends along the short side direction Y of the aluminum honeycomb core panel 11. Along the thickness direction X of the aluminum honeycomb core panel 11, the thickness of the upper protrusion 211 is less than the thickness of the upper frame body 210. Along the short side direction Y of the aluminum honeycomb core panel 11, the length of the upper protrusion 211 is less than the length of the upper frame body 210. The aluminum honeycomb core panel 11 is close to the upper frame 210. A U-shaped upper slot 11a is provided on the side to mate with the upper protrusion 211. The upper slot 11a is formed by an upper plate 111, a middle plate 112, and a lower plate 113, extending along the thickness direction X of the aluminum honeycomb core panel 11. The thickness of the upper slot 11a is equal to the distance between the upper plate 111 and the lower plate 113. The upper slot 11a is located on the side of the aluminum honeycomb core panel 11 near the upper frame 21, and the opening of the upper slot 11a faces the upper protrusion 211. The upper protrusion 211 is inserted into the upper slot 11a. An upper left protrusion 212 is provided on the left side of the upper frame away from the upper frame body 210. The upper left protrusion 212 and the upper frame body 210 are integrally formed. The shape of the upper left protrusion 212 is strip-shaped. The extension direction of the upper left protrusion 212 is the same as the extension direction of the left waist of the upper frame, along the short side direction Y of the aluminum honeycomb core panel 11. The orthographic projection of the upper left protrusion 212 is located inside the orthographic projection of the upper frame body 210. The upper right protrusion 213 is provided on the right waist of the upper frame away from the upper frame body 210. The upper right protrusion 213 and the upper frame body 210 are integrally formed. The shape of the upper right protrusion 213 is strip-shaped. The extension direction of the upper right protrusion 213 is the same as the extension direction of the right waist of the upper frame, along the short side direction Y of the aluminum honeycomb core panel 11. The orthographic projection of the upper right protrusion 213 is located inside the orthographic projection of the upper frame body 210.The left frame 22 includes a left frame body 220, which is a flat structure. Along the thickness direction X of the aluminum honeycomb core panel 11, the orthographic projection of the left frame body 220 is an isosceles trapezoid. The length of the left frame body 220 along the long side Z of the aluminum honeycomb core panel 11 is greater than the length of the upper frame body 210 along the short side Y of the aluminum honeycomb core panel 11. The long side Z of the aluminum honeycomb core panel 11 intersects the short side Y and the thickness direction X of the aluminum honeycomb core panel 11 in pairs. The side of the left frame body 220 closest to the aluminum honeycomb core panel 11 is the upper bottom of the left frame, the side of the left frame body 220 furthest from the aluminum honeycomb core panel 11 is the lower bottom of the left frame, and the side of the left frame body 220 closest to the upper frame 21 is the upper waist of the left frame. The side of the left frame away from the upper frame 21 is the lower waist of the left frame. The upper bottom and lower bottom of the left frame are parallel to each other and extend upward along the long side direction Z of the aluminum honeycomb core panel 11. The length of the upper bottom of the left frame is less than the length of the lower bottom of the left frame. A left protrusion 221 is provided on the side of the upper bottom of the left frame away from the main body 220 of the left frame. The left protrusion 221 and the main body 220 of the left frame are integrally formed. The shape of the left protrusion 221 is strip-shaped. The left protrusion 221 extends upward along the length direction Z of the aluminum honeycomb core panel 11 and upward along the thickness direction X of the aluminum honeycomb core panel 11. The thickness of the left protrusion 221 is less than the thickness of the main body 220 of the left frame. The length of the left protrusion 221 is less than the length of the main body 220 of the left frame. The aluminum honeycomb core panel 11 is close to A U-shaped left slot 11b is provided on one side of the left frame 21 to mate with the left protrusion 221. The left slot 11b is formed by the upper plate 111, the middle plate 112, and the lower plate 113, and extends along the thickness direction X of the aluminum honeycomb core panel 11. The thickness of the left slot 11b is equal to the distance between the upper plate 111 and the lower plate 113. The left slot 11b is located on the side of the aluminum honeycomb core panel 11 closer to the left frame 22, and the opening of the left slot 11b faces the left protrusion 221. The left protrusion 221 is inserted into the left slot 11b, and the left slot 11b is connected to the upper slot 11a. A left upper groove 222 is provided on the upper waist of the left frame to mate with the upper left protrusion 212. The left upper groove 222 and the left frame body 220 are integrally formed. The shape of the left upper groove 222 is the same as that of the upper left protrusion 212. The protrusions 212 are identical in shape and extend along the thickness direction X of the aluminum honeycomb core panel 11. The orthographic projection of the upper left groove 222 is located within the orthographic projection of the left frame body 220, and the upper left protrusion 212 is inserted into the upper left groove 222. A lower left groove 223 is provided on the side of the lower waist of the left frame away from the left frame body 220. The lower left groove 223 and the left frame body 220 are integrally formed and extend along the thickness direction X of the aluminum honeycomb core panel 11. The orthographic projection of the lower left groove 223 is located within the orthographic projection of the left frame body 220. The lower left groove 223 is used to splice the left frame 22 and the lower frame 23. The lower frame 23 and the upper frame 21 are symmetrical about the center line of the aluminum honeycomb core panel 11, and the right frame 24 and the left frame 22 are symmetrical about the center line of the aluminum honeycomb core panel 11.The top frame 21, bottom frame 22, left frame 23, right frame 24, aluminum honeycomb core panel 11, first inner medium-density fiberboard 121, and second inner inner medium-density fiberboard 122 are spliced ​​into a plate-like structure. A first outer medium-density fiberboard 131 is bonded to the side of the first inner medium-density fiberboard 121 away from the aluminum honeycomb core panel 11, and a second outer medium-density fiberboard 132 is bonded to the side of the second inner medium-density fiberboard 122 away from the aluminum honeycomb core panel 11. Along the thickness direction X of the aluminum honeycomb core panel 11, the orthographic projections of the first outer medium-density fiberboard 131, the second outer medium-density fiberboard 132, and the plate-like structure completely overlap. The density range of both the first and second outer medium-density fiberboards 131 and 132 is 0.5 g / cm³ to 0.88 g / cm³.

[0044] Combination Figure 3 and Figure 4 As shown, this embodiment provides a door panel with sound insulation and anti-deformation functions, including an inner core 1 and a frame 2 covering the inner core 1; the inner core 1 includes an aluminum honeycomb core panel 11, the overall shape of which is approximately a rectangular flat plate. Along the thickness direction X of the aluminum honeycomb core panel 11, the aluminum honeycomb core panel 11 includes an upper plate 111, a middle plate 112, and a lower plate 113 connected in sequence. The upper plate 111 and the lower plate 113 are both rectangular flat plates, and the middle plate 112 has a cuboid structure. The upper plate 111 and the lower plate 113 are parallel to each other and symmetrical about the middle plate 112. Along the thickness direction X of the aluminum honeycomb core panel 11, the thickness of the upper plate 111 and the lower plate 113 are the same, and the thickness of the middle plate 112 is greater than that of the upper plate 111. The thickness of the aluminum honeycomb core panel 111 is 111. Along the thickness direction X of the aluminum honeycomb core panel 11, the orthographic projections of the upper plate 111, the middle plate 112, and the lower plate 113 are all rectangular. The orthographic projections of the upper plate 111 and the lower plate 113 coincide. The orthographic projection of the middle plate 112 is located within the orthographic projection of the lower plate 113, and the edge of the orthographic projection of the middle plate 112 does not coincide with the edge of the orthographic projection of the lower plate 113. This arrangement allows the periphery of the aluminum honeycomb core panel 11 to have a groove recessed towards the middle plate 112, which facilitates the subsequent connection of the aluminum honeycomb core panel 11 to the frame 2. The upper plate 111, the middle plate 112, and the lower plate 113 can be integrally formed, which ensures that the structure of the aluminum honeycomb core panel 11 is more robust.

[0045] Continue to refer to Figure 4As shown, the aluminum honeycomb core panel 11 has periodically arranged honeycomb cores 110 inside. At least a portion of the honeycomb cores 110 are arranged along the thickness direction X of the aluminum honeycomb core panel 11. Since the upper plate 111, the middle plate 112, and the lower plate 113 are integrally formed, at least a portion of the honeycomb cores 110 are uniformly filled inside the upper plate 111, the middle plate 112, and the lower plate 113. Optionally, the honeycomb cores 110 are uniformly filled between a portion of the upper plate 111 near the lower plate 113, and between the middle plate 112 and a portion of the lower plate 113 near the upper plate 111. The honeycomb core 110 is a regular hexagonal hollow structure. The use of a regular hexagonal hollow structure is essentially a biomimetic application of the honeycomb structure in nature. The regular hexagonal hollow structure can evenly distribute external forces to the entire panel surface. Just as a honeycomb can efficiently bear the weight of bees and honey, each cell can share the pressure, avoiding excessive local stress that could lead to deformation.

[0046] The core advantage of the periodically arranged hollow hexagonal structure stems from the perfect combination of mathematical principles and engineering requirements, which can be understood from the following perspectives:

[0047] (1) In planar tiling patterns, regular hexagons, squares and equilateral triangles are the only three regular polygons that can be seamlessly spliced. Regular hexagons have the smallest total perimeter for the same area. This characteristic is directly converted into maximizing material utilization. For aluminum honeycomb core panels 11 made of honeycomb core 110, under the premise of ensuring structural strength, the regular hexagonal design can significantly reduce material consumption and reduce overall weight.

[0048] (2) From the perspective of mechanical performance analysis, each unit of the regular hexagonal hollow structure is closely connected to the adjacent unit through six sides, forming a uniformly distributed stress transmission network. This design allows the stress of the honeycomb core to be quickly dispersed through the sides of the hexagon when subjected to loads such as pressure and shear force, avoiding local stress concentration. Thus, high strength and high stiffness are achieved while achieving lightweight. In addition, the symmetry of the regular hexagon ensures the consistency of the mechanical performance of the structure in all directions, meeting the requirements of engineering materials for stability.

[0049] (3) The hollow structure of the regular hexagon greatly reduces the amount of material used, while the honeycomb-shaped unit walls form a support system similar to a "grid". Through this structure, the characteristics of "lightweight and strong" are achieved. Its strength-to-weight ratio is much higher than that of solid materials, achieving a balance between lightweight and high strength.

[0050] (4) The closed cavity between the regular hexagonal units has sound insulation and heat insulation properties. In the building curtain wall, the honeycomb core not only serves as a load-bearing structure, but also blocks heat transfer and sound wave propagation through the cavity, thereby improving the building's energy efficiency and comfort, and realizing multi-functional integration.

[0051] In summary, continue to refer to Figure 4As shown, the regular hexagonal hollow structure is the most reasonable and scientific structure with the least amount of raw materials under the same strength. It is the lightest and has the highest strength. When the honeycomb core 110 of this shape is applied to the aluminum honeycomb core panel 11, the sound insulation function is achieved. The door panel made using the aluminum honeycomb core panel 11 has a significantly improved sound insulation function and deformation resistance because it is based on the aluminum honeycomb core panel 11 with the addition of other film layers, which can meet the higher needs of users.

[0052] In one alternative embodiment, the minimum side length of the honeycomb core 110 inside the aluminum honeycomb core panel 11 is 3 mm.

[0053] Specifically, continue to refer to Figure 4 As shown, the honeycomb core 110 has a regular hexagonal hollow structure, and each honeycomb core 110 has six sides of the same length. Within the same aluminum honeycomb core panel 11, the larger the side length of the honeycomb core 110, the fewer the number of honeycomb cores 110. If the side length of the honeycomb core 110 is too small, the manufacturing process of the aluminum honeycomb core panel 11 becomes too difficult, increasing the cost. If the side length of the honeycomb core 110 is too large, the number of honeycomb cores 110 inside the aluminum honeycomb core panel 11 will decrease, reducing the deformation resistance and sound insulation effect of the aluminum honeycomb core panel 11. The minimum side length of the honeycomb core 110 on the market is 3mm. This solution can use a honeycomb core 110 with a side length of 3mm, which balances the manufacturing difficulty and cost while ensuring that the aluminum honeycomb core panel 11 has a sufficiently strong sound insulation effect and deformation resistance. In other embodiments, the side length of the honeycomb core 110 can be increased or decreased according to customer needs.

[0054] Continue to refer to Figure 4 As shown, aluminum honeycomb core panel 11 is a composite material that exhibits many advantages over other metal panels (such as ordinary aluminum alloy panels, stainless steel panels, etc.) in terms of performance, structure, and application scenarios, as detailed below:

[0055] (1) Material characteristics advantages: The density of aluminum honeycomb core panel is lower than that of traditional metal panels (such as aluminum alloy), but its rigidity and strength are higher, achieving a balance between "lightweight and high strength";

[0056] (2) Aluminum itself is non-combustible, and the honeycomb structure can resist salt spray corrosion after special treatment. Its fireproof, moisture-proof and corrosion-resistant properties are better than some metal plates.

[0057] (3) The hollow structure of the honeycomb core forms an air layer, which effectively blocks the transmission of sound and heat, and its sound insulation and heat insulation performance is significantly better than that of solid metal plates;

[0058] (4) Aluminum is not easily deformed under large scale and has a high surface flatness, making it suitable for scenarios with high decorative requirements (such as building curtain walls, toilet partitions, etc.).

[0059] (5) Aluminum is 100% recyclable, and the production process has low energy consumption, which is in line with the trend of green building and is superior to some non-degradable or difficult-to-recycle metal materials.

[0060] (6) Aluminum is durable, resistant to deformation and corrosion, reducing the cost of maintenance and replacement, and is especially suitable for high-frequency use scenarios.

[0061] In summary, aluminum honeycomb core panels 11 have advantages such as light weight, high strength, sound insulation, impact resistance, strong deformation resistance, fire resistance and moisture resistance. The door panels manufactured from them are durable and unaffected by temperature and humidity differences.

[0062] Continue to combine Figure 3 and Figure 4 As shown, along the thickness direction X of the aluminum honeycomb core panel 11, inner medium-density fiberboard (MDF) 12 is bonded to both sides of the thickness of the aluminum honeycomb core panel 11. There are two inner MDF 12s, and the two inner MDF 12s have identical structures. It can be understood that one inner MDF 12 is bonded to the surface of the upper panel 111 away from the middle panel 112, and this inner MDF 12 is the first inner MDF 121. The other inner MDF 12 is bonded to the surface of the lower panel 113 away from the middle panel 112. The inner medium-density fiberboard 12 is the second inner medium-density fiberboard 122. Along the thickness direction X of the aluminum honeycomb core board 11, the orthographic projections of the first inner medium-density fiberboard 121, the upper plate 111, the lower plate 113, and the second inner medium-density fiberboard 122 completely overlap. This arrangement ensures that the periphery of the inner core 1 formed by the aluminum honeycomb core board 11, the first inner medium-density fiberboard 121, and the second inner medium-density fiberboard 122 is flat, which facilitates subsequent installation with the frame 2.

[0063] In one alternative embodiment, continue to refer to Figure 3 As shown, along the thickness direction X of the aluminum honeycomb core panel 11, the thickness range of the aluminum honeycomb core panel 11 is 12mm to 20mm. If the thickness of the aluminum honeycomb core panel 11 is too thin, it is easy to deform, thereby losing its resistance to deformation. At the same time, it will increase the difficulty of manufacturing the aluminum honeycomb core panel 11. In existing furniture, there are certain requirements for the thickness of the door panel. Therefore, the thickness of the aluminum honeycomb core panel 11, as a component of it, cannot be too thick. Therefore, the thickness of the aluminum honeycomb core panel 11 can be limited to no more than 20mm. The thickness of the aluminum honeycomb core panel 11 provided in this embodiment can be 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm or 20mm, etc., and no specific limitation is made here.

[0064] In one alternative embodiment, continue to refer to Figure 3As shown, along the thickness direction X of the aluminum honeycomb core panel 11, the thickness of the first inner medium-density fiberboard 121 ranges from 1mm to 2mm. Currently, the thinnest thickness of the first inner medium-density fiberboard 121 is 1mm, and there is no mature process to manufacture a thinner first inner medium-density fiberboard 121. If the first inner medium-density fiberboard 121 is too thin, it will not be able to protect the aluminum honeycomb core panel 11. If the thickness of the first inner medium-density fiberboard 121 is too thick, the final door panel thickness will easily exceed the user's requirements for the door panel and cannot be applied in practical scenarios. In addition, since the first inner medium-density fiberboard 121 needs to be sanded after it is pasted in this solution, if the first inner medium-density fiberboard 121 used is too thick, it will increase the difficulty of the subsequent sanding process. The thickness of the first inner medium-density fiberboard 121 provided in this embodiment can be 1mm, 1.2mm, 1.4mm, 1.5mm, 1.6mm, 1.8mm or 2mm, etc., and no specific limitation is made here. Furthermore, it should be emphasized that while maintaining the thickness of the first inner layer medium-density fiberboard 121 within the aforementioned range, users can choose a thinner first inner layer medium-density fiberboard 121 according to actual needs. This is because the thinner the board, the less stress it exerts on the aluminum honeycomb core panel 11, the smaller the deformation of the door panel, and the better the quality of the final door panel. Along the thickness direction X of the aluminum honeycomb core panel 11, the thickness of the second inner layer medium-density fiberboard 122 is exactly the same as the thickness of the first inner layer medium-density fiberboard 121, and will not be elaborated here.

[0065] Combination Figure 3 and Figure 5 As shown, frame 2 includes an upper frame 21, a left frame 22, a lower frame 23, and a right frame 24 connected end to end. The upper frame 21 and the lower frame 23 are positioned opposite each other and parallel to each other, the left frame 22 and the right frame 24 are positioned opposite each other and parallel to each other, the upper frame 21 and the left frame 22 are perpendicular to each other, the upper frame 21 and the lower frame 23 are symmetrical about the center line of the aluminum honeycomb core panel 11, and the left frame 22 and the right frame 24 are symmetrical about the center line of the aluminum honeycomb core panel 11. Along the thickness direction X of the aluminum honeycomb core panel 11, the upper frame 21 and the left frame 22 are... The orthographic projections of the bottom frame 23 and the right frame 24 are approximately isosceles trapezoids. This design is to enable splicing between the four frames. The top frame 21, left frame 22, bottom frame 23 and right frame 24 are spliced ​​together to form frame 2. Along the thickness direction X of the aluminum honeycomb core panel 11, the orthographic projection of frame 2 is a hollow rectangular ring structure. By setting the top frame 21, left frame 22, bottom frame 23 and right frame 24 as isosceles trapezoidal structures, these four frames can be spliced ​​together to frame the inner core 1 and increase the strength of the final door panel.

[0066] Combination Figure 3 , Figure 6 and Figure 7As shown, the upper frame 21 includes an upper frame body 210, which is a flat plate structure. It extends along the thickness direction X of the aluminum honeycomb core panel 11. The orthographic projection of the upper frame body 210 is an isosceles trapezoid. The side of the upper frame body 210 closest to the aluminum honeycomb core panel 11 is the upper bottom of the upper frame, and the side of the upper frame body 210 furthest from the aluminum honeycomb core panel 11 is the lower bottom of the upper frame. The side of the upper frame body 210 closest to the left frame 22 is the left waist of the upper frame, and the side of the upper frame body 210 furthest from the left frame 22 is the right waist of the upper frame. The upper bottom and the lower bottom of the upper frame are parallel to each other and extend along the short side direction Y of the aluminum honeycomb core panel 11. The length of the upper bottom of the upper frame is less than the length of the lower bottom of the upper frame. The short side direction Y of the aluminum honeycomb core panel 11 intersects with the thickness direction X of the aluminum honeycomb core panel 11. Optionally, the short side direction Y of the aluminum honeycomb core panel 11 is perpendicular to the thickness direction X of the aluminum honeycomb core panel 11.

[0067] Continue to combine Figure 3 , Figure 6 and Figure 7 As shown, an upper protrusion 211 is provided on the side of the upper frame away from the upper frame body 210. The upper protrusion 211 and the upper frame body 210 are integrally formed. The upper protrusion 211 is strip-shaped and extends along the thickness direction X of the aluminum honeycomb core panel 11. The thickness of the upper protrusion 211 is less than the thickness of the upper frame body 210. It extends along the short side direction Y of the aluminum honeycomb core panel 11. The length of the upper protrusion 211 is less than the length of the upper frame body 210. An upper frame upper receiving platform 211a and an upper frame lower receiving platform 211b are formed between the upper protrusion 211 and the upper frame body 210. In direction X, the orthographic projection of the upper frame accommodating platform 211a coincides with the orthographic projection of the lower frame accommodating platform 211b. Along the long side direction Z of the aluminum honeycomb core panel 11, both the orthographic projections of the upper frame accommodating platform 211a and the lower frame accommodating platform 211b are located within the orthographic projection of the upper frame body 210. The long side direction Z of the aluminum honeycomb core panel 11 intersects the short side direction Y and the thickness direction X of the aluminum honeycomb core panel 11 in pairs. Optionally, the long side direction Z of the aluminum honeycomb core panel 11 is perpendicular to the short side direction Y and the thickness direction X of the aluminum honeycomb core panel 11 in pairs. Figure 4As shown, the upper frame receiving platform 211a is used to receive the edge of the upper plate 111 near the upper frame 21 and the edge of the first inner layer medium density fiberboard 121 near the upper frame 21. The lower frame receiving platform 211b is used to receive the edge of the lower plate 113 near the upper frame 21 and the edge of the second inner layer medium density fiberboard 122 near the upper frame 21. The aluminum honeycomb core panel 11 is provided with a U-shaped upper slot 11a that cooperates with the upper protrusion 211 on the side near the upper frame 21. The upper slot 11a is formed by the upper plate 111, the middle plate 112 and the lower plate 113, and is located along the thickness direction X of the aluminum honeycomb core panel 11. The thickness of the upper slot 11a is equal to the distance between the side of the upper plate 111 near the lower plate 113 and the side of the lower plate 113 near the upper plate 111. The upper slot 11a is located on the side of the aluminum honeycomb core panel 11 near the upper frame 21, and the opening of the upper slot 11a is... The opening faces the upper protrusion 211, which is inserted into the upper slot 11a, thereby realizing the insertion between the upper frame 21 and the aluminum honeycomb core board 11. When the upper frame 21 is combined with the aluminum honeycomb core board 11, the first inner layer medium density fiber board 121 and the second inner layer medium density fiber board 122, along the thickness direction X of the aluminum honeycomb core board 11, the upper surface of the upper frame body 210 is flush with the surface of the first inner layer medium density fiber board 121 away from the aluminum honeycomb core board 11, and the lower surface of the upper frame body 210 is flush with the surface of the second inner layer medium density fiber board 122 away from the aluminum honeycomb core board 11. This setting is to ensure that the upper frame 21, the aluminum honeycomb core board 11, the first inner layer medium density fiber board 121 and the second inner layer medium density fiber board 122 are spliced ​​into a smooth surface structure, which is convenient for subsequent bonding with the outer layer medium density fiber board 3.

[0068] Continue to combine Figure 3 , Figure 6 and Figure 7 As shown, an upper left protrusion 212 is provided on the left side of the upper frame away from the upper frame body 210. The upper left protrusion 212 and the upper frame body 210 are integrally formed. The upper left protrusion 212 is strip-shaped. The extension direction of the upper left protrusion 212 is the same as the extension direction of the left side of the upper frame, along the short side direction Y of the aluminum honeycomb core panel 11. The orthographic projection of the upper left protrusion 212 is located inside the orthographic projection of the upper frame body 210. The upper left protrusion 212 is used to realize the splicing between the upper frame 21 and the left frame 22. Similarly, an upper right protrusion 213 is provided on the right side of the upper frame away from the upper frame body 210. The upper right protrusion 213 and the upper frame body 210 are integrally formed. The upper right protrusion 213 is strip-shaped. The extension direction of the upper right protrusion 213 is the same as the extension direction of the right side of the upper frame, along the short side direction Y of the aluminum honeycomb core panel 11. The orthographic projection of the upper right protrusion 213 is located inside the orthographic projection of the upper frame body 210. The upper right protrusion 213 is used to realize the splicing between the upper frame 21 and the right side frame 24.

[0069] Combination Figure 6, Figure 7 and Figure 8 As shown, the shape of the left frame 22 is similar to that of the upper frame 21 but slightly different. Specifically, the left frame 22 includes a left frame body 220, the shape of which is the same as that of the upper frame body 210. The difference is that the length of the upper frame body 210 along the short side direction Y of the aluminum honeycomb core panel 11 is less than the length of the left frame body 220 along the long side direction Z of the aluminum honeycomb core panel 11. Along the thickness direction X of the aluminum honeycomb core panel 11, the orthographic projection of the left frame body 220 is an isosceles trapezoid. The side of the left frame body 220 closer to the aluminum honeycomb core panel 11 is the upper bottom of the left frame, and the side of the left frame body 220 away from the aluminum honeycomb core panel 11 is the lower bottom of the left frame. The side of the left frame body 220 closer to the upper frame 21 is the upper waist of the left frame, and the side of the left frame body 220 away from the upper frame 21 is the lower waist of the left frame. The upper bottom and lower bottom of the left frame are parallel to each other and along the long side direction Z of the aluminum honeycomb core panel 11, the length of the upper bottom of the left frame is less than the length of the lower bottom of the left frame.

[0070] Combination Figure 3 , Figure 5 and Figure 7 As shown, the lower frame 23 and the upper frame 21 are symmetrical about the center line of the aluminum honeycomb core panel 11. Therefore, the shape of the lower frame 23 is the same as the shape of the upper frame 21. Continuing to refer to... Figure 9 and Figure 10 As shown, the lower frame 23 includes a lower protrusion 231, a lower left protrusion 232 and a lower right protrusion (not shown in the figure), a lower bottom edge, and other structures. The lower slot 11c and the upper slot 11a are symmetrical about the center line of the aluminum honeycomb core panel 11. The lower slot 11c is formed by the upper plate 111, the middle plate 112 and the lower plate 113, and is located along the thickness direction X of the aluminum honeycomb core panel 11. The thickness of the lower slot 11c is equal to the thickness of the upper plate 111 near the lower plate 113 and the thickness of the lower plate 113 near the upper plate 113. The distance between the two sides of the board 111, the lower slot 11c is located on the side of the aluminum honeycomb core board 11 away from the upper frame 21, the lower protrusion 231 is inserted into the lower slot 11c to realize the splicing between the lower frame 23 and the aluminum honeycomb core board 11, the lower left protrusion 232 is used to insert into the lower left groove 223 to realize the splicing between the lower frame 23 and the left frame 22, the lower right protrusion is used to insert into the lower right groove 242 to realize the splicing between the lower frame 23 and the right frame 24, which will not be described in detail here.

[0071] Combination Figure 6 , Figure 7 and Figure 8As shown, a left protrusion 221 is provided on the side of the left frame away from the main body 220. The left protrusion 221 and the main body 220 of the left frame are integrally formed. The shape of the left protrusion 221 can be referenced from the upper protrusion 211. The left protrusion 221 is also a strip structure. The aluminum honeycomb core panel 11 is provided on the side of the left frame 22 with a C-shaped left slot 11b that matches the left protrusion 221. The left slot 11b consists of an upper plate 111, a middle plate 112 and a lower plate 113. The enclosure is formed along the thickness direction X of the aluminum honeycomb core panel 11. The thickness of the left slot 11b is equal to the distance between the side of the upper plate 111 near the lower plate 113 and the side of the lower plate 113 near the upper plate 111. The left slot 11b is located on the side of the aluminum honeycomb core panel 11 near the left frame 22, and the opening of the left slot 11b faces the left protrusion 221. The left protrusion 221 is inserted into the left slot 11b, thereby realizing the insertion between the left frame 22 and the aluminum honeycomb core panel 11. (Continuing the connection...) Figure 3 As shown, when the left frame 22 is combined with the aluminum honeycomb core panel 11, the first inner medium-density fiberboard 121, and the second inner medium-density fiberboard 122, along the thickness direction X of the aluminum honeycomb core panel 11, the upper surface of the left frame body 220 is flush with the surface of the first inner medium-density fiberboard 121 away from the aluminum honeycomb core panel 11, and the lower surface of the left frame body 220 is flush with the surface of the second inner medium-density fiberboard 122 away from the aluminum honeycomb core panel 11. This arrangement is to ensure that the left frame 22, the aluminum honeycomb core panel 11, the first inner medium-density fiberboard 121, and the second inner medium-density fiberboard 122 are spliced ​​into a smooth surface structure, which facilitates subsequent bonding with the outer medium-density fiberboard 3.

[0072] Continue to combine Figure 3 , Figure 6 , Figure 7 and Figure 8 As shown, a left upper groove 222 is provided on the upper waist of the left frame. The left upper groove 222 and the left frame body 220 are integrally formed. The shape of the left upper groove 222 is the same as the shape of the upper left protrusion 212. Along the thickness direction X of the aluminum honeycomb core panel 11, the orthographic projection of the left upper groove 222 is located within the orthographic projection of the left frame body 220. The left upper groove 222 is used to realize the splicing between the left frame 22 and the upper frame 21. When the left frame 22 and the upper frame 21 are spliced ​​together, the upper left protrusion 212 is inserted into the left upper groove 222; similarly, continuing to combine Figure 9As shown, a lower left groove 223 is provided on the side of the lower left frame away from the main body 220 of the left frame. The lower left groove 223 and the main body 220 of the left frame are integrally formed. The shape of the lower left groove 223 is the same as the shape of the lower left protrusion 232. Along the thickness direction X of the aluminum honeycomb core panel 11, the orthographic projection of the lower left groove 223 is located within the orthographic projection of the main body 220 of the left frame. The lower left groove 223 is used to realize the splicing between the left frame 22 and the lower frame 23. When the left frame 22 and the lower frame 23 are spliced ​​together, the lower left protrusion 232 is inserted into the lower left groove 222.

[0073] Combination Figure 3 and Figure 5 As shown, the right frame 24 and the left frame 22 are symmetrical about the center line of the aluminum honeycomb core panel 11. Therefore, the shape of the right frame 24 is the same as the shape of the left frame 22. Continuing to combine... Figure 8 and Figure 10 As shown, the right frame 24 includes a right protrusion 241, a right upper groove (not shown in the figure), a right lower groove 242, and a bottom of the right frame. The right slot 11d and the left slot 11b are symmetrical about the center line of the aluminum honeycomb core panel 11. The right slot 11d is formed by the upper plate 111, the middle plate 112, and the lower plate 113. Along the thickness direction X of the aluminum honeycomb core panel 11, the thickness of the right slot 11d is equal to the thickness of the upper plate 111 near the lower plate 113 and the lower plate 113 near the upper plate. The distance between the two sides of 111, the right slot 11d is located on the side of the aluminum honeycomb core panel 11 away from the left frame 22, the right protrusion 241 is inserted into the right slot 11d to realize the splicing between the right frame 24 and the aluminum honeycomb core panel 11, the upper right groove is used to insert with the upper right protrusion 213 to realize the splicing between the right frame 24 and the upper frame 21, the lower right groove 242 is used to insert with the lower right protrusion to realize the splicing between the right frame 24 and the lower frame 23, and so on.

[0074] Reference Figure 3 As shown, the structure and connection method of the upper frame 21, lower frame 22, left frame 23, and right frame 24 have been described in detail above. When the upper frame 21, lower frame 22, left frame 23, right frame 24, aluminum honeycomb core panel 11, first inner layer medium density fiberboard 121, and second inner layer medium density fiberboard 122 are spliced ​​together, a smooth plate-like structure is formed. Along the thickness direction X of the aluminum honeycomb core panel 11, outer layer medium density fiberboard 3 is also bonded to both sides of the thickness of this plate-like structure. There are two outer layer medium density fiberboards 3. Along the thickness direction X of the aluminum honeycomb core panel 11, the first inner layer medium density fiberboard 121 is bonded to the side away from the aluminum honeycomb core panel 11 with the first outer layer medium density fiberboard 31, and the second inner layer medium density fiberboard 122 is bonded to the side away from the aluminum honeycomb core panel 11 with the second outer layer medium density fiberboard 32. Figure 11 and Figure 12As shown, along the thickness direction X of the aluminum honeycomb core panel 11, the orthographic projections of the first outer medium-density fiberboard 31, the second outer medium-density fiberboard 32, and the plate-like structure completely overlap. The surface of the first outer medium-density fiberboard 31 near the aluminum honeycomb core panel 11 is bonded to the upper frame 21 near the upper surface of the first outer medium-density fiberboard 31, the left frame 22 near the upper surface of the first outer medium-density fiberboard 31, the lower frame 23 near the upper surface of the first outer medium-density fiberboard 31, the right frame 24 near the upper surface of the first outer medium-density fiberboard 31, and the surface of the first inner medium-density fiberboard 121 away from the aluminum honeycomb core panel 11. The surface of the second outer medium-density fiberboard 32 near the aluminum honeycomb core panel 11 is bonded to... The upper frame 21 is away from the lower surface of the first outer medium-density fiberboard 31, the left frame 22 is away from the lower surface of the first outer medium-density fiberboard 31, the lower frame 23 is away from the lower surface of the first outer medium-density fiberboard 31, the right frame 24 is away from the lower surface of the first outer medium-density fiberboard 31, and the surface of the second inner medium-density fiberboard 122 is away from the aluminum honeycomb core board 11. This arrangement ensures that the door panel formed by the upper frame 21, lower frame 22, left frame 23, right frame 24, aluminum honeycomb core board 11, first inner medium-density fiberboard 121 and second inner inner medium-density fiberboard 122, first outer medium-density fiberboard 31 and second outer medium-density fiberboard 32 is a regular shape and can be directly applied to actual needs.

[0075] Continue to refer to Figure 3 As shown, the first inner layer medium-density fiberboard 121, the second inner layer medium-density fiberboard 122, the first outer layer medium-density fiberboard 31, and the second outer layer medium-density fiberboard 32 can all be made of medium-density fiberboard (MDF). Fiberboard (abbreviated as MDF) is a type of engineered wood product made by mechanically separating and chemically treating wood or plant fibers, adding adhesives and waterproofing agents, and then molding them under high temperature and pressure. Its density is between that of hardboard (density greater than 0.88 g / cm³) and softboard (density less than 0.5 g / cm³), typically ranging from 0.5 g / cm³ to 0.88 g / cm³. MDF has a more uniform structure than natural wood, avoiding problems such as decay and insect infestation. It also has low expansion and contraction, making it easy to process. The smooth surface of MDF makes it easy to apply various finishes, resulting in more aesthetically pleasing finished furniture. In terms of bending strength and impact strength, MDF is superior to materials such as particleboard.

[0076] In one alternative embodiment, continue to refer to Figure 3As shown, along the thickness direction X of the aluminum honeycomb core panel 11, the thickness of the first outer medium-density fiberboard 31 ranges from 1mm to 3mm. Currently, the thinnest thickness of the first outer medium-density fiberboard 31 is 1mm, and there is no mature process to manufacture a thinner first outer medium-density fiberboard 31. If the thickness of the first outer medium-density fiberboard 31 exceeds 3mm, when bonding the first outer medium-density fiberboard 31 to the upper frame 21, left frame 22, lower frame 23, right frame 24, and first inner medium-density fiberboard 121, problems such as uneven bonding of the first outer medium-density fiberboard 31 and bulging on the door panel surface are likely to occur. Setting the thickness of the first outer medium-density fiberboard 31 along the thickness direction X of the aluminum honeycomb core board 11 to a range of 1mm to 3mm can avoid the aforementioned problems. Optionally, the thickness of the first outer medium-density fiberboard 31 provided in this embodiment can be 1mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2mm, 2.4mm, 2.6mm, 2.8mm, or 3mm, etc., without specific limitation here. Along the thickness direction X of the aluminum honeycomb core board 11, the thickness of the second outer medium-density fiberboard 32 is exactly the same as the thickness of the first outer medium-density fiberboard 31, which will not be elaborated here.

[0077] In one alternative embodiment, the upper plate 111 and the first inner medium-density fiberboard 121, and the lower plate 113 and the second inner medium-density fiberboard 122 are bonded together by a first adhesive.

[0078] Specifically, continue to refer to Figure 3 As shown, the first adhesive can be polyurethane adhesive. Polyurethane adhesive is an adhesive whose molecular chain contains urethane and isocyanate groups. Due to the presence of highly polar isocyanate and urethane groups, it has high reactivity and can cure at room temperature. This adhesive has excellent bonding properties to a variety of materials, including metals, rubber, glass, ceramics, plastics, wood, fabrics, and leather. Polyurethane adhesive has advantages such as high bonding performance, good wear resistance, high elasticity, low temperature resistance, simple processing, and wide applicability.

[0079] In addition, the bonding operation with polyurethane adhesive can be carried out on a PET laminating machine. A PET laminating machine is an automated device used to apply film to the surface of sheets or rolls. It mainly achieves a tight bond between the sheet and the surface film through processes such as gluing, pressing, and curing. It is widely used in furniture manufacturing, decorative materials, advertising boards and other fields. Its core functions include eliminating surface orange peel, improving gloss (high gloss / matte / skin-like effect), and enhancing the durability of the sheet.

[0080] In an alternative embodiment, the upper protrusion 211 and the upper slot 11a, the left protrusion 221 and the left slot 11b, the lower protrusion 231 and the lower slot 11c, and the right protrusion 241 and the right slot 11d can all be bonded together by a second adhesive.

[0081] Specifically, continue to refer to Figure 3 As shown, in addition to direct splicing, the upper protrusion 211 and the upper slot 11a, the left protrusion 221 and the left slot 11b, the lower protrusion 231 and the lower slot 11c, and the right protrusion 241 and the right slot 11d can also be bonded together using a second adhesive. The dual effect of splicing and bonding ensures that the frame 2 and the inner core 1 form a stable structure, preventing deformation or disintegration, and ensuring the service life of the final door panel. The second adhesive can also be polyurethane glue. The operation of bonding the frame 2 and the inner core 1 with polyurethane glue can also be performed on a PET laminating machine. Polyurethane glue and PET laminating machines have been introduced above and will not be repeated here.

[0082] In one alternative embodiment, the upper frame 21, left frame 22, lower frame 23 and right frame 24 are made of solid wood or medium-density fiberboard.

[0083] Specifically, continue to refer to Figure 3 As shown, solid wood refers to natural materials made from whole pieces of wood (logs) without hollow spaces. Its structure retains the original texture and physical properties of the wood. Door panels made of solid wood are environmentally friendly, have strong sound insulation, are durable, and have good fire resistance, making them suitable for scenarios with high requirements for privacy and security. In this embodiment, solid wood is used as the frame of the door panel, which can strengthen the strength of the inner core 1 and increase the door panel's resistance to deformation. Medium-density fiberboard (MDF) has a more uniform structure than natural wood, avoiding problems such as decay and insect infestation. At the same time, it has low expansion and contraction, is easy to process, and has a smooth surface, making it easy to apply various finishes, which can make the finished furniture more beautiful. MDF has significant advantages in terms of bending strength and impact strength. In other embodiments, the material of the frame 2 can be adjusted according to the actual situation, which will not be elaborated here.

[0084] In one alternative embodiment, combined with Figure 4 , Figure 6 , Figure 9 and Figure 10As shown, the upper plate 111, middle plate 112 and lower plate 113 form interconnected upper slot 11a, left slot 11b, lower slot 11c and right slot 11d. Therefore, along the thickness direction X of the aluminum honeycomb core panel 11, the thickness of the upper slot 11a is less than the thickness of the aluminum honeycomb core panel 11, the thickness of the left slot 11b is less than the thickness of the aluminum honeycomb core panel 11, the thickness of the lower slot 11c is less than the thickness of the aluminum honeycomb core panel 11, and the thickness of the right slot 11d is less than the thickness of the aluminum honeycomb core panel 11. This arrangement ensures that the upper frame 21, left frame 22, lower frame 23 and right frame 24 can be directly spliced ​​together with the aluminum honeycomb core panel 11.

[0085] In one alternative embodiment, along the thickness direction X of the aluminum honeycomb core panel 11, the thickness of the lower bottom of the upper frame of the upper frame 21 is equal to the sum of the thicknesses of the aluminum honeycomb core panel 11, the first inner medium-density fiberboard 121, and the second inner medium-density fiberboard 122.

[0086] Specifically, in combination Figure 3 , Figure 5 and Figure 11 As shown, in manufacturing the door panel with sound insulation and anti-deformation functions, the aluminum honeycomb core panel 11 is first bonded to the first inner layer medium-density fiberboard 121 and the second inner layer medium-density fiberboard 122 with polyurethane adhesive to form the inner core 1. Then, the inner core 1 is spliced ​​and bonded to the frame 2 (including the upper frame 21, left frame 22, lower frame 23 and right frame 24) to form a plate-like structure. This plate-like structure is a rectangular plate with a flat surface. At this time, along the thickness direction X of the aluminum honeycomb core panel 11, the thickness of the lower bottom of the upper frame of the upper frame 21 is equal to the sum of the thicknesses of the aluminum honeycomb core panel 11, the first inner layer medium-density fiberboard 121 and the second inner layer medium-density fiberboard 122, and the thickness of the lower bottom of the left frame 22 is equal to the sum of the thicknesses of the aluminum honeycomb core panel 11, the first inner layer medium-density fiberboard 121 and the second inner layer medium-density fiberboard 122. The thickness of the bottom is equal to the sum of the thicknesses of the aluminum honeycomb core panel 11, the first inner medium-density fiberboard 121, and the second inner medium-density fiberboard 122. The thickness of the bottom edge of the bottom frame 23 is equal to the sum of the thicknesses of the aluminum honeycomb core panel 11, the first inner medium-density fiberboard 121, and the second inner medium-density fiberboard 122. The thickness of the bottom edge of the right frame 24 is equal to the sum of the thicknesses of the aluminum honeycomb core panel 11, the first inner medium-density fiberboard 121, and the second inner medium-density fiberboard 122. This arrangement ensures that the surface of the plate-like structure formed by the inner core 1 and the frame 2 is flat, which facilitates the subsequent bonding of the first outer medium-density fiberboard 31 and the second outer medium-density fiberboard 32 to the plate-like structure.

[0087] Continue to refer to Figure 3As shown, before bonding the first outer layer medium density fiberboard 31 and the second outer layer medium density fiberboard 32 to both sides of the thickness of the plate structure, the plate structure needs to be sanded. Sanding is a surface treatment process. Its principle is to use tools such as sandpaper or grinding wheels to abrade the surface of an object, so that the surface presents an effect similar to sanding.

[0088] The sanding process has the following characteristics:

[0089] (1) It can change the gloss and texture of the surface of an object, making it more tactile and visually appealing;

[0090] (2) It can cover up surface defects and flaws, and improve the aesthetics and quality of the product;

[0091] (3) It can increase the friction and anti-slip properties of the object surface, and improve the safety of use;

[0092] (4) It can be applied to the surface treatment of various materials, such as metal, plastic, wood, etc., and has a wide range of applications.

[0093] When sanding the plate-like structure, the thickness range of the sanding process can be limited to 0.3mm to 0.5mm. If the sanding thickness is less than 0.3mm, the surface of the plate-like structure cannot be smoothed. If the sanding thickness is greater than 0.5mm, the internal structure of the aluminum honeycomb core panel 11 is easily damaged, making the plate-like structure a defective product that cannot be further processed into a door panel. Therefore, limiting the sanding thickness range to 0.3mm to 0.5mm can avoid the above problems. Optionally, the sanding thickness can be 0.3mm, 0.32mm, 0.34mm, 0.36mm, 0.38mm, 0.4mm, 0.42mm, 0.44mm, 0.46mm, 0.48mm, or 0.5mm, without specific limitation here.

[0094] In one alternative embodiment, the plate-like structure is bonded to the first outer medium-density fiberboard 31 and to the second outer medium-density fiberboard 32 by a third adhesive.

[0095] Specifically, continue to refer to Figure 3As shown, the surface of the sanded plate structure has a certain roughness, which allows it to be bonded to the first outer layer medium-density fiberboard 31 and the second outer layer medium-density fiberboard 32 by a third adhesive. The rough surface can increase the bonding effect. The third adhesive can be polyurethane glue, which is a glue containing urethane and isocyanate groups in its molecular chain. Due to the presence of highly polar isocyanate and urethane groups, it has high reactivity and can cure at room temperature. This glue has excellent adhesive properties to a variety of materials, including metals, rubber, glass, ceramics, plastics, wood, fabrics and leather. Polyurethane glue has advantages such as high bonding performance, good wear resistance, high elasticity, low temperature resistance, simple process, and wide applicability.

[0096] In one alternative embodiment, continue to refer to Figure 3 As shown, along the long side Z of the aluminum honeycomb core panel 11, the height range of the door panel with sound insulation and anti-deformation functions is 2700mm to 3000mm. Typically, the upper limit of door panels in the prior art is 2700mm. The door panel with sound insulation and anti-deformation functions provided in this embodiment uses the aluminum honeycomb core panel 11 as the core, and adds a first inner layer medium density fiberboard 121, a second inner layer medium density fiberboard 122, an upper frame 21, a left frame 22, a lower frame 23, a right frame 24, a first outer layer medium density fiberboard 131, and a second outer layer medium density fiberboard 132 on the aluminum honeycomb core panel 11. The several structures are closely connected to form an integrated door panel, which is not easily deformed by external forces. Even if the height of the door panel is increased, a straightener can be added to prevent deformation. This door panel with sound insulation and anti-deformation functions breaks through the 2700mm height limit and can manufacture ultra-high door panels with a height of 3000mm.

[0097] Compared with the prior art, the door panel with sound insulation and anti-deformation functions provided in this embodiment achieves at least the following beneficial effects:

[0098] The door panel with sound insulation and deformation resistance provided in this embodiment differs from existing door panels in that it alters the panel's structural composition. It uses an aluminum honeycomb core panel as its core, with two inner layers of medium-density fiberboard (MDF), four frame layers, and two outer layers of MDF added to it. These structures are tightly connected to form a unified door panel, making it less susceptible to deformation from external forces. The door panel can also be painted and have handles, hinges, and other components added. This sound insulation and deformation-resistant door panel has a wide range of applications, including higher-end furniture. The aluminum honeycomb core panel contains periodically arranged hexagonal honeycomb cores. The hollow structure, with its enclosed cavities between regular hexagonal units, effectively blocks heat transfer and sound wave propagation, providing sound and heat insulation. This honeycomb structure offers excellent sound insulation while maximizing the strength of the door panel, exhibiting strong resistance to deformation. Using aluminum honeycomb core panels eliminates the need for straighteners inside the door panel to prevent deformation. The height of this sound-insulating and deformation-resistant door panel can be increased according to user needs, exceeding the existing 2700mm standard and reaching up to 3000mm. This sound-insulating and deformation-resistant door panel offers high space utilization efficiency, excellent visual appeal, and a sophisticated overall aesthetic, making it particularly advantageous in large spaces and minimalist environments.

[0099] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A door panel with sound insulation and anti-deformation functions, characterized in that, Includes an inner core and a frame that covers the inner core; The inner core includes an aluminum honeycomb core panel. Along the thickness direction of the aluminum honeycomb core panel, the aluminum honeycomb core panel includes an upper plate, a middle plate, and a lower plate connected in sequence. The upper plate and the lower plate are both rectangular flat plates, and the middle plate is a cuboid structure. The upper plate and the lower plate are parallel to each other and symmetrical about the middle plate. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projections of the upper plate, the middle plate, and the lower plate are all rectangular. The orthographic projections of the upper plate and the lower plate coincide. The orthographic projection of the middle plate is located within the orthographic projection of the lower plate, and the edge of the orthographic projection of the middle plate does not coincide with the edge of the orthographic projection of the lower plate. The aluminum honeycomb core panel has periodically arranged honeycomb cores inside. The honeycomb cores are evenly filled between a portion of the upper plate near the lower plate, the middle plate, and a portion of the lower plate near the upper plate. The honeycomb cores are regular hexagonal hollow structures. A first inner layer of medium-density fiberboard (MDF) is bonded to the surface of the upper plate away from the middle plate, and a second inner layer of MDF is bonded to the surface of the lower plate away from the middle plate. Both the first and second inner MDF layers have a density range of 0.5 g / cm³. 3 Up to 0.88 g / cm 3 The first inner medium-density fiberboard and the second inner medium-density fiberboard have the same structure. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the first inner medium-density fiberboard, the orthographic projection of the upper plate, the orthographic projection of the lower plate, and the orthographic projection of the second inner medium-density fiberboard completely overlap. The frame includes an upper frame, a left frame, a lower frame, and a right frame connected end to end. The upper frame and the lower frame are arranged opposite to each other and are parallel to each other. The left frame and the right frame are arranged opposite to each other and are parallel to each other. The upper frame and the left frame are perpendicular to each other. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the upper frame, the left frame, the lower frame, and the right frame are all approximately isosceles trapezoids. The upper frame includes an upper frame body, which is a flat plate structure. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the upper frame body is an isosceles trapezoid. The side of the upper frame body closer to the aluminum honeycomb core panel is the upper bottom of the upper frame, and the side of the upper frame body away from the aluminum honeycomb core panel is the lower bottom of the upper frame. The side of the upper frame body closer to the left frame is the left waist of the upper frame, and the side of the upper frame body away from the left frame is the right waist of the upper frame. The upper bottom and the lower bottom of the upper frame are parallel to each other, and along the short side direction of the aluminum honeycomb core panel, the length of the upper bottom of the upper frame is less than the length of the lower bottom of the upper frame. The short side direction of the aluminum honeycomb core panel intersects with the thickness direction of the aluminum honeycomb core panel. An upper protrusion is provided on the side of the upper frame away from the main body of the upper frame. The upper protrusion and the main body of the upper frame are integrally formed. The upper protrusion is strip-shaped and extends along the short side of the aluminum honeycomb core panel. The thickness of the upper protrusion is less than the thickness of the main body of the upper frame along the thickness direction of the aluminum honeycomb core panel. The length of the upper protrusion is less than the length of the main body of the upper frame along the short side of the aluminum honeycomb core panel. An U-shaped upper slot is provided on the side of the aluminum honeycomb core panel near the upper frame, which cooperates with the upper protrusion. The upper slot is formed by the upper plate, the middle plate and the lower plate. The thickness of the upper slot is equal to the distance between the upper plate and the lower plate along the thickness direction of the aluminum honeycomb core panel. The upper slot is located on the side of the aluminum honeycomb core panel near the upper frame, and the opening of the upper slot faces the upper protrusion. The upper protrusion is inserted into the upper slot. An upper left protrusion is provided on the left side of the upper frame away from the main body of the upper frame. The upper left protrusion is integrally formed with the main body of the upper frame. The upper left protrusion is strip-shaped. The extension direction of the upper left protrusion is the same as the extension direction of the left side of the upper frame. Along the short side of the aluminum honeycomb core panel, the orthographic projection of the upper left protrusion is located inside the orthographic projection of the main body of the upper frame. An upper right protrusion is provided on the right side of the upper frame away from the main body of the upper frame. The upper right protrusion is integrally formed with the main body of the upper frame. The upper right protrusion is strip-shaped. The extension direction of the upper right protrusion is the same as the extension direction of the right side of the upper frame. Along the short side of the aluminum honeycomb core panel, the orthographic projection of the upper right protrusion is located inside the orthographic projection of the main body of the upper frame. The left frame includes a left frame body, which is a flat plate structure. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the left frame body is an isosceles trapezoid. The length of the left frame body along the long side of the aluminum honeycomb core panel is greater than the length of the upper frame body along the short side of the aluminum honeycomb core panel. The long side of the aluminum honeycomb core panel intersects the short side and the thickness direction of the aluminum honeycomb core panel in pairs. The side of the left frame body closest to the aluminum honeycomb core panel is the upper bottom of the left frame, and the side of the left frame body furthest from the aluminum honeycomb core panel is the lower bottom of the left frame. The side of the left frame body closest to the upper frame is the upper waist of the left frame, and the side of the left frame body furthest from the upper frame is the lower waist of the left frame. The upper bottom and lower bottom of the left frame are parallel to each other, and along the long side of the aluminum honeycomb core panel, the length of the upper bottom of the left frame is less than the length of the lower bottom of the left frame. A left protrusion is provided on the side of the left frame away from the main body of the left frame. The left protrusion and the main body of the left frame are integrally formed. The left protrusion is strip-shaped and extends along the length of the aluminum honeycomb core panel. The thickness of the left protrusion is less than the thickness of the main body of the left frame along the thickness of the aluminum honeycomb core panel. The length of the left protrusion is less than the length of the main body of the left frame along the long side of the aluminum honeycomb core panel. A c-shaped left slot is provided on the side of the aluminum honeycomb core panel near the left frame to cooperate with the left protrusion. The left slot is formed by the upper plate, the middle plate and the lower plate. The thickness of the left slot is equal to the distance between the upper plate and the lower plate along the thickness of the aluminum honeycomb core panel. The left slot is located on the side of the aluminum honeycomb core panel near the left frame, and the opening of the left slot faces the left protrusion. The left protrusion is inserted into the left slot, and the left slot is connected to the upper slot. The upper left side of the left frame has an upper left groove that mates with the upper left protrusion. The upper left groove and the main body of the left frame are integrally formed. The shape of the upper left groove is the same as that of the upper left protrusion. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the upper left groove is located within the orthographic projection of the main body of the left frame. The upper left protrusion is inserted into the upper left groove. The lower left side of the left frame has a lower left groove on the side away from the main body of the left frame. The lower left groove and the main body of the left frame are integrally formed. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projection of the lower left groove is located within the orthographic projection of the main body of the left frame. The lower left groove is used to splice the left frame and the lower frame. The lower frame and the upper frame are symmetrical about the center line of the aluminum honeycomb core panel, and the right frame and the left frame are symmetrical about the center line of the aluminum honeycomb core panel. The upper frame, lower frame, left frame, right frame, aluminum honeycomb core panel, first inner medium-density fiberboard (MDF), and second inner MDF are spliced ​​into a plate-like structure. A first outer MDF is bonded to the side of the first inner MDF away from the aluminum honeycomb core panel, and a second outer MDF is bonded to the side of the second inner MDF away from the aluminum honeycomb core panel. Along the thickness direction of the aluminum honeycomb core panel, the orthographic projections of the first outer MDF, the second outer MDF, and the plate-like structure completely overlap. The density range of both the first and second outer MDF layers is 0.5 g / cm³. 3 Up to 0.88 g / cm 3 .

2. The door panel with sound insulation and anti-deformation functions according to claim 1, characterized in that, Along the thickness direction of the aluminum honeycomb core panel, the thickness of the upper plate and the lower plate are the same, and the thickness of the middle plate is greater than the thickness of the upper plate.

3. The door panel with sound insulation and anti-deformation functions according to claim 2, characterized in that, The upper plate, the middle plate, and the lower plate are integrally formed.

4. The door panel with sound insulation and anti-deformation functions according to claim 1, characterized in that, Along the thickness of the aluminum honeycomb core panel, the thickness ranges from 12mm to 20mm, and the thickness of the first inner medium-density fiberboard ranges from 1mm to 2mm.

5. The door panel with sound insulation and anti-deformation functions according to claim 1, characterized in that, Along the thickness direction of the aluminum honeycomb core panel, the upper surface of the upper frame body is flush with the surface of the first inner medium-density fiberboard away from the aluminum honeycomb core panel, and the lower surface of the upper frame body is flush with the surface of the second inner medium-density fiberboard away from the aluminum honeycomb core panel.

6. The door panel with sound insulation and anti-deformation functions according to claim 1, characterized in that, The upper plate and the first inner medium-density fiberboard, and the lower plate and the second inner medium-density fiberboard are bonded together by a first adhesive. The upper protrusion and the upper slot, and the left protrusion and the left slot are bonded together by a second adhesive; The plate-like structure is bonded to the first outer medium-density fiberboard and to the second outer medium-density fiberboard by a third adhesive.

7. The door panel with sound insulation and anti-deformation functions according to claim 1, characterized in that, The top frame, left frame, bottom frame, and right frame are made of solid wood or medium-density fiberboard.

8. The door panel with sound insulation and anti-deformation functions according to claim 1, characterized in that, Along the thickness direction of the aluminum honeycomb core panel, the thickness of the bottom edge of the upper frame is equal to the sum of the thicknesses of the aluminum honeycomb core panel, the first inner medium-density fiberboard, and the second inner medium-density fiberboard.

9. The door panel with sound insulation and anti-deformation functions according to claim 1, characterized in that, The minimum side length of the honeycomb core is 3mm.

10. The door panel with sound insulation and anti-deformation functions according to claim 1, characterized in that, Along the long side of the aluminum honeycomb core panel, the height of the door panel with sound insulation and anti-deformation functions ranges from 2700mm to 3000mm.

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