Metal packaging type composite structure

Abstract

The utility model relates to a metal packaging type composite structure. The metal packaging type composite structure comprises a first panel, a middle layer and a backing layer which are sequentially glued together, wherein the middle layer comprises a bonding layer and a second panel, and the bonding layer comprises a plurality of honeycomb cores arranged on the second panel; the honeycomb core is provided with mounting cavities, ceramic columns which are the same as the honeycomb core in shape are arranged in one part of the mounting cavities, bolts are arranged in the other part of the mounting cavities, and stud parts of the bolts penetrate through the backing layer. The composite bulletproof material solves the problems that the bonding strength of a bonding layer and other layers in the composite bulletproof material is low, and the bonding layer is prone to interface layering; the ceramic columns are restrained through the honeycomb core, and the bulletproof capacity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bulletproof armor, in particular to a metal encapsulation type composite structure. Background Art

[0002] Bulletproof ceramics are bulletproof because they have extremely high hardness and strength. When a bullet hits a high-strength and high-hardness ceramic, it breaks and causes the ceramic to shatter. The whole process consumes most of the bullet's energy and forms an "inverted pyramid" type destruction cone at the point of impact. This is also the typical morphology of ceramics being destroyed after being hit by a bullet.

[0003] At present, due to the brittleness of ceramics, it is not possible to achieve "infallibility" by relying solely on ceramics. Bulletproof ceramics are generally placed on the bullet-facing surface and must be bonded together with other backing materials to form composite armor for use together.

[0004] However, mainstream composite bulletproof materials can resist the penetration of a single bullet, but cannot effectively resist the penetration of multiple bullets; the bonding strength between the ceramic layer and other layers is insufficient, and the bonding failure is easy to occur during service. Due to the hard and brittle characteristics of ceramics, once the composite bulletproof material is formed, the hard and brittle ceramic layer makes it difficult to perform secondary processing, which significantly reduces the wide applicability of the composite bulletproof material. Utility Model Content

[0005] Aiming at the deficiencies of the prior art, the utility model discloses a metal encapsulation type composite structure.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A metal encapsulated composite structure comprises: a first panel, an intermediate layer and a backing layer glued together in sequence; wherein the intermediate layer comprises a bonding layer and a second panel, the bonding layer comprises a plurality of honeycomb cores arranged on the second panel; the honeycomb core has an installation cavity, a part of the installation cavity is provided with a ceramic column having the same shape as the honeycomb core, and another part of the installation cavity is provided with a bolt, and the stud portion of the bolt passes through the backing layer.

[0008] In one embodiment of the present invention, the plurality of honeycomb cores are distributed on the second panel in an array, and the plurality of honeycomb cores form a main area on the second panel.

[0009] In one embodiment of the present invention, adhesive is filled between the honeycomb core and the ceramic column, and adhesive is filled between two adjacent honeycomb cores.

[0010] In one embodiment of the present invention, the shape of the honeycomb core is hexagonal.

[0011] In one embodiment of the present invention, the ceramic column is in a hexagonal shape.

[0012] In one embodiment of the present invention, the height of the ceramic column is less than or equal to the height of the honeycomb core.

[0013] In one embodiment of the present invention, the honeycomb core includes a first number of the honeycomb cores and a second number of the honeycomb cores, wherein the second number is smaller than the first number, and the second number of honeycomb cores are arranged at the edge of the second panel, and the first number of honeycomb cores are arranged in the central area of ​​the second panel.

[0014] In one embodiment of the present invention, the material of the first panel is aluminum and / or titanium.

[0015] In one embodiment of the present invention, the material of the second panel is aluminum and / or titanium.

[0016] In one embodiment of the present invention, the material of the backing layer is selected from one or more of para-aramid, ultra-high molecular weight polyethylene and fibrous ion exchange resin.

[0017] The above technical solution of the utility model has the following advantages compared with the prior art:

[0018] The metal encapsulated composite structure described in the utility model improves the material's ability to resist penetration by bullets and bomb fragments by combining bulletproof materials; by unitizing the bonding layer, it can prevent the ceramic column from being completely broken when penetrated by bullets, thereby improving the ability of the combined bulletproof material to resist multiple bullet attacks.

[0019] The metal encapsulation composite structure of the utility model constrains the hexagonal prism ceramics through the honeycomb core, thereby improving the bulletproof capability and the bonding strength between the ceramics and other connecting parts.

[0020] The metal encapsulated composite structure of the utility model prefabricates bolts in the honeycomb core, thereby reducing the secondary processing of the combined bulletproof material and the connection difficulties with other carriers caused by the difficulty in processing hard ceramics. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments of the utility model in combination with the accompanying drawings.

[0022] Figure 1 It is a structural schematic diagram of the metal encapsulation composite structure in the utility model from a first viewing angle.

[0023] Figure 2 It is a structural schematic diagram of the metal encapsulation composite structure in the utility model from a second viewing angle.

[0024] Figure 3 It is a top view of the metal encapsulation composite structure in the utility model.

[0025] Figure 4 yes Figure 3 A magnified schematic diagram of center A.

[0026] Figure 5 yes Figure 3 Cross-section view at the middle BB.

[0027] Figure 6 It is a partially enlarged schematic diagram of the metal encapsulation composite structure (without adhesive) in the utility model.

[0028] Explanation of the reference numerals in the specification: 100, first panel; 200, intermediate layer; 300, bonding layer; 301, honeycomb core; 302, ceramic column; 303, adhesive; 304, sub-region; 400, second panel; 500, backing layer; 600, bolt. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0030] The above and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only the directions of the reference drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention. In addition, in all embodiments, the same reference numerals represent the same elements.

[0031] Embodiment 1

[0032] Combination Figures 1 to 3 as well as Figure 5 A metal encapsulated composite structure comprises: a first panel 100, an intermediate layer 200 and a backing layer 500 which are glued together in sequence; wherein the intermediate layer 200 comprises a bonding layer 300 and a second panel 400, the bonding layer 300 comprises a plurality of honeycomb cores 301 arranged on the second panel 400; the honeycomb core 301 has an installation cavity, a part of the installation cavity is provided with a ceramic column 302 of the same shape as the honeycomb core 301, and another part of the installation cavity is provided with a bolt 600, and the stud portion of the bolt 600 passes through the backing layer 500.

[0033] The present embodiment provides a metal-encapsulated composite structure to solve the problem of low bonding strength between the ceramic layer and other layers in the combined bulletproof material and easy interface stratification of the ceramic layer; the ceramic columns 302 are constrained by the honeycomb core 301 to increase the bulletproof capability of the bonding layer 300; and the connection units between the metal-encapsulated composite structure and its carrier are increased by prefabricating bolts 600 in the honeycomb core 301, thereby reducing the difficulty of connecting the metal-encapsulated composite structure with other carriers.

[0034] In this embodiment, if Figure 3 As shown, the plurality of honeycomb cores 301 are distributed in an array on the second panel 400 , the plurality of honeycomb cores 301 form a main area on the second panel 400 , and the remaining area where the honeycomb cores 301 are not provided is a sub-area 304 .

[0035] In this embodiment, combined with Figure 3 and Figure 6 , an adhesive 303 is filled between the honeycomb core 301 and the ceramic column 302, and an adhesive 303 is filled between two adjacent honeycomb cores 301. The adhesive 303 can be a commercially available epoxy resin adhesive, which effectively bonds the honeycomb core 301 and the ceramic column 302 as well as the two adjacent honeycomb cores 301, and the bonding layer 300 formed by curing is not easy to crack.

[0036] In this embodiment, the shape of the honeycomb core 301 and the shape of the ceramic column 302 are both hexagonal. The height of the ceramic column 302 is less than or equal to the height of the honeycomb core 301. Figure 5 As shown, in a particular example, the height of the ceramic pillars 302 is equal to the height of the honeycomb core 301 .

[0037] In this embodiment, the honeycomb core 301 includes a first number of honeycomb cores 301 and a second number of honeycomb cores 301, wherein the second number is smaller than the first number, and the second number of honeycomb cores 301 are arranged at the edge of the second panel 400, and the first number of honeycomb cores 301 are arranged in the central area of ​​the second panel 400. Specifically, Figure 3 As shown, the second panel 400 is in a rectangular shape, and it is obvious that the second panel 400 has four corners, and honeycomb cores 301 with mounting bolts 600 are arranged at the four corners, and the second number is 4. It should be noted that the first number of honeycomb cores 301 and the second number of honeycomb cores 301 are arranged adjacent to each other, and the adhesive 303 is coated on the opposite outer surfaces of two adjacent honeycomb cores 301.

[0038] In this embodiment, the material of the first panel 100 is aluminum, the material of the second panel 400 is titanium, and the material of the backing layer 500 is fibrous ion exchange resin.

[0039] The preparation method of this embodiment is as follows:

[0040] S1, bonding the first panel 100 to the honeycomb core 301;

[0041] S2, the ceramic column 302 is placed in the honeycomb core 301 and bonded to the honeycomb core 301 to form a bonding layer 300;

[0042] S3, the second panel 400 is bonded to the bonding layer 300 to form an intermediate layer 200;

[0043] S4, the bolt 600 passes through the second panel 400, and the head of the bolt 600 is glued to the second panel 400;

[0044] S5 . The backing layer 500 is bonded to the second panel 400 , and the stud portion of the bolt 600 passes through the backing layer 500 .

[0045] The method of using this embodiment is as follows:

[0046] The metal encapsulated composite structure provided in this embodiment can be connected to other components through prefabricated bolts 600 by welding or threaded connection.

[0047] When the metal encapsulated composite structure is penetrated by bullets and explosion fragments, first, the first panel 100 prevents the bonding layer 300 from falling off. When the bullet reaches the ceramic column 302 of the bonding layer 300, the bullet head is blunted, broken and flattened, and the bonding layer 300 is partially powdered. Then the bullet penetrates the bonding layer 300, further absorbing the kinetic energy of the bullet. When the bullet reaches the backing layer 500, the backing layer 500 resists the penetration of the bullet.

[0048] Embodiment 2

[0049] The difference from the first embodiment is that the material of the first panel 100 is aluminum, the material of the second panel 400 is aluminum, and the material of the backing layer 500 is fibrous ion exchange resin.

[0050] Embodiment 3

[0051] The difference from the first embodiment is that the material of the first panel 100 is titanium, the material of the second panel 400 is titanium, and the material of the backing layer 500 is fibrous ion exchange resin.

[0052] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A metal encapsulation composite structure, characterized in that: include: A first panel (100), an intermediate layer (200) and a backing layer (500) are sequentially bonded together; wherein the intermediate layer (200) comprises a bonding layer (300) and a second panel (400), the bonding layer (300) comprises a plurality of honeycomb cores (301) arranged on the second panel (400); the honeycomb core (301) has an installation cavity, a part of the installation cavity is provided with a ceramic column (302) of the same shape as the honeycomb core (301), and another part of the installation cavity is provided with a bolt (600), and the stud portion of the bolt (600) passes through the backing layer (500).

2. The metal encapsulation composite structure according to claim 1, characterized in that: The plurality of honeycomb cores (301) are distributed in an array on the second panel (400), and the plurality of honeycomb cores (301) form a main area on the second panel (400).

3. The metal encapsulation composite structure according to claim 1, characterized in that: Adhesive (303) is filled between the honeycomb core (301) and the ceramic column (302), and adhesive (303) is filled between two adjacent honeycomb cores (301).

4. The metal encapsulation composite structure according to claim 1, characterized in that: The honeycomb core (301) is in a hexagonal shape.

5. The metal encapsulation composite structure according to claim 1, characterized in that: The ceramic column (302) is in the shape of a hexagon.

6. The metal encapsulation composite structure according to claim 1, characterized in that: The height of the ceramic column (302) is less than or equal to the height of the honeycomb core (301).

7. The metal encapsulation composite structure according to claim 1, characterized in that: The honeycomb core (301) includes a first number of the honeycomb cores (301) and a second number of the honeycomb cores (301), wherein the second number is smaller than the first number, and the second number of honeycomb cores (301) are arranged at the edge of the second panel (400), and the first number of honeycomb cores (301) are arranged in the central area of ​​the second panel (400).

8. The metal encapsulation composite structure according to claim 1, characterized in that: The material of the first panel (100) is aluminum and / or titanium.

9. The metal encapsulation composite structure according to claim 1, characterized in that: The material of the second panel (400) is aluminum and / or titanium.

10. The metal encapsulation composite structure according to claim 1, characterized in that: The material of the backing layer (500) is selected from one or more of para-aramid, ultra-high molecular weight polyethylene and fibrous ion exchange resin.

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