A type of axe-cut wave-absorbing material structure

Abstract

This utility model discloses a wedge-shaped microwave absorbing material structure, including a wedge and a base. The wedge has a shell-like structure on both sides and a wedge-shaped main body. The lower end of the wedge has mounting feet. The base has weight-reducing holes, and the four corners of the weight-reducing holes are designed with symmetrical conical grooves corresponding to the mounting feet. The wedge and the base are connected by the mounting feet, forming a closed space after the wedge is installed on the base. This utility model features a separate design for the base and the wedge, allowing the base to accommodate wedges of different heights, resulting in low cost and easy replacement. The I-shaped groove design of the base ensures flexible, secure, and non-sagging insertion of the wedge. The flanged base design prevents the shielding body from being exposed during installation. The wedge-shaped microwave absorbing material has the advantages of lightweight structure, good mechanical properties, and no magnetic leakage between the gaps in the absorbing material.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic wave absorbing materials technology, specifically to a hewn wave absorbing material structure. Background Technology

[0002] In recent years, with the rapid development of communication and electromagnetic technologies, microwave anechoic chambers and absorbing materials have developed at an increasingly rapid pace. Higher performance requirements have been placed on microwave anechoic chambers, and absorbing wedges play a crucial role in improving their performance. Patent CN104369498A mentions that commonly used absorbing wedges mainly use carburized polyurethane foam materials. The application of such materials in microwave anechoic chambers has the following problems: 1) Due to the foam substrate, it is prone to moisture absorption, thus affecting the wedge's performance; 2) During long-term use, especially for wedges that are frequently moved, carbon powder is prone to falling off, leading to a decrease in wedge performance; 3) The foam material has poor mechanical properties and is prone to breakage, resulting in a short wedge lifespan; 4) It has poor flame retardant properties, making it prone to fire hazards. Patent CN219759972U discloses a high-performance EPP (polypropylene) cone absorbing material that effectively solves the problems of polyurethane foam being prone to moisture, sagging, and powdering, as well as its poor mechanical properties. Existing EPP (Electronic Partial Pore Protective) absorbing shears are mostly solid, heavy, and lack versatility. They are also often glued to shielding structures, causing environmental pollution, poor replaceability, and inconsistent straightness of the shear blades. Therefore, designing a lightweight, electrically superior, structurally stable, easy-to-install, and low-cost absorbing shear material is urgently needed. Utility Model Content

[0003] The purpose of this utility model is to provide a structure for axe-cut wave-absorbing material to solve the technical problems of poor mechanical properties, magnetic leakage between gaps in wave-absorbing materials, poor versatility of different axe-cut materials, inconvenient replacement, poor straightness, and high cost in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This utility model provides a wave-absorbing material structure with a chamfer, including a chamfer and a base. The chamfer has a shell-like structure on both sides and a wedge-shaped main body. The lower end of the chamfer is provided with a mounting foot. The base is provided with a weight-reducing hole. The four corners of the weight-reducing hole are designed as conical grooves symmetrical with the mounting foot. The chamfer and the base are connected by the mounting foot. After the chamfer is installed on the base, it forms a closed space with the base.

[0006] Furthermore, the axe blades can be connected to each other, and each axe blade has a boss and a groove on its two sides, so that the boss and groove can make adjacent axe blades fit together during installation.

[0007] Furthermore, the protrusions and grooves on both sides of the axe wedges ensure the straightness of multiple axe wedges during installation by interlocking adjacent axe wedges.

[0008] Furthermore, the mounting feet of the axe-shaped splitter are "I"-shaped, and the wall thickness of the axe-shaped splitter shell is 50mm-100mm.

[0009] Furthermore, shelling refers to a wedge-shaped structure that is hollow inside and open at the bottom, or a hollow structure with an open bottom and a pointed top. The shelling design reduces weight while ensuring good electrical and mechanical properties.

[0010] Furthermore, the neutral surface is reinforced with ribs, the thickness of which is not less than 15mm. Finally, the axe-shaped mounting feet are shaped like the letter "I". The mounting feet and the cone-shaped grooves designed at the four corners of the weight reduction hole are mortise and tenon jointed with each other, so that the axe can be freely inserted into the base at 0° and 90°, and is firm and does not loosen.

[0011] Furthermore, the base is provided with four weight-reducing holes, and an axe is installed in each weight-reducing hole.

[0012] Furthermore, the non-cavity portion of the cross-shaped design between the weight-reducing holes on the base has four mounting countersunk holes.

[0013] Furthermore, four mounting holes are provided for bolting the absorber base to the shielding frame or wooden board.

[0014] Furthermore, the base has a convex flange and a groove on its side, which allow adjacent bases to be interlocked and connected. The width of the convex flange and the groove is not less than 10mm.

[0015] Furthermore, the design of the convex flange and the grooved edge allows adjacent bases to interlock and connect, preventing electromagnetic waves from directly hitting the shielding body through the gaps between the bases and affecting electromagnetic performance.

[0016] Furthermore, the axe-shaped wave-absorbing material structure includes two bases and eight axe-shaped segments. The bases are connected by a convex flange edge and a groove edge, and adjacent axe-shaped segments are connected by a boss and a groove.

[0017] Furthermore, the axe-shaped wave-absorbing material structure includes N bases and 4N axe-shaped segments. The bases are connected by convex flange edges and groove edges, and adjacent axe-shaped segments are connected by bosses and grooves.

[0018] Furthermore, the number of bases and axe blades can be adjusted according to the actual situation.

[0019] Furthermore, the wave-absorbing material is made of EPP material through foaming.

[0020] Based on the above technical solution, the embodiments of this utility model can produce at least the following technical effects:

[0021] (1) The axe-shaped wave-absorbing material structure provided by this utility model is made of EPP material, which does not shed powder, is moisture-proof, and does not droop.

[0022] (2) The axe-shaped wave-absorbing material structure provided by this utility model has a separate design of base and axe-shaped material. The base is compatible with axe-shaped materials of different heights, which is low in cost and easy to replace.

[0023] (3) The axe-shaped wave-absorbing material structure provided by this utility model has an I-shaped groove and insert design on the base, and the axe-shaped insertion is flexible, firm and does not sag.

[0024] (4) The axe-cut wave-absorbing material structure provided by this utility model has a flange-side base design, and the base installation does not expose the shielding body.

[0025] (5) The axe-cut wave-absorbing material structure provided by this utility model has axe-cut shell design, good electrical performance, light weight and low cost.

[0026] (6) The axe-shaped wave-absorbing material structure provided by this utility model has a concave-convex design on the axe-shaped sidewall, which has good integrity and good straightness. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the base structure according to an embodiment of the present utility model;

[0030] Figure 3 This is a top view of the base according to an embodiment of the present utility model;

[0031] Figure 4 This is a schematic diagram of the axe splitting of an embodiment of the present utility model;

[0032] Figure 5 This is a side view of the axe-cutting action according to an embodiment of the present utility model;

[0033] In the diagram: 1. Axe-cut; 11. Shelling; 12. Mounting foot; 13. Boss; 14. Groove; 15. Rib; 2. Base; 21. Weight reduction hole; 22. Insertion cone groove; 23. Mounting countersunk hole; 24. Convex flange edge; 25. Groove edge. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0035] In the description of this application, it should be noted that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application; unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] Example 1

[0037] like Figure 1-5 As shown, this utility model provides a wave-absorbing material structure with a chamfer shape, including a chamfer 1 and a base 2. The chamfer 1 has a structure with shells 11 on both sides and a wedge-shaped main body. The lower end of the chamfer 1 is provided with mounting feet 12. The base 2 is provided with weight-reducing holes 21. The four corners of the weight-reducing holes 21 are designed as cone-shaped grooves 22 symmetrical with the mounting feet 12. The chamfer 1 and the base 2 are connected by the mounting feet 12. After the chamfer 1 is installed on the base 2, it forms a closed space with the base 2.

[0038] In this embodiment, the axe-shaped wedges 1 can be connected to each other. The two sides of the axe-shaped wedges 1 are respectively provided with bosses 13 and grooves 14. During installation, the bosses 13 and grooves 14 make adjacent axe-shaped wedges 1 snap together.

[0039] In this embodiment, the mounting feet 12 of the axe-cutting 1 are "I" shaped, and the shell wall thickness of the axe-cutting 1 is 50mm-100mm.

[0040] In this embodiment, the base 2 is provided with four weight-reducing holes 21, and an axe 1 is installed on each weight-reducing hole 21.

[0041] In this embodiment, the non-cavity portion of the cross-shaped part between the weight reduction holes 21 on the base 2 has four mounting countersunk holes 23.

[0042] In this embodiment, the side of the base 2 is provided with a convex flange edge 24 and a groove edge 25, which enable adjacent bases 2 to be interlocked and connected through the convex flange edge 24 and the groove edge 25. The width of the convex flange edge 24 and the groove edge 25 is not less than 10mm.

[0043] In this embodiment, the wave-absorbing material structure includes two bases 2 and eight wedges 1. The bases 2 are connected by a convex flange edge 24 and a groove edge 25, and adjacent wedges 1 are connected by a boss 13 and a groove 14.

[0044] Specific application implementation: The base of the axe-shaped absorbing material structure is screwed into the countersunk hole 21 at the center of the cross and nailed to the shielding keel (or wooden board). The convex flange edge 24 of the same base 2 mates with the groove edge 25, ensuring that the gap between adjacent bases 2 is not visible to the shielding body. Axe-shaped pieces 1 of different heights are inserted as needed, so that the "I"-shaped mounting feet 12 are inserted into the conical grooves 22 of the base 2. When installing axe-shaped pieces 1, the protrusions 12 on different sides of different axe-shaped pieces 1 are inserted into adjacent grooves 14. The above steps are repeated until the entire absorbing material is installed.

[0045] Example 2

[0046] Unlike Example 1,

[0047] In this embodiment, the axe-cut wave-absorbing material structure includes 3 bases and 12 axe-cuts.

[0048] In this embodiment, the bases 2 are connected by a convex flange edge 24 and a groove edge 25, and adjacent axe wedges 1 are connected by a boss 13 and a groove 14.

[0049] Specific application implementation: The base of the axe-shaped absorbing material structure is screwed into the countersunk hole 21 at the center of the cross and nailed to the shielding keel (or wooden board). The convex flange edge 24 of the same base 2 mates with the groove edge 25, ensuring that the gap between adjacent bases 2 is not visible to the shielding body. Axe-shaped pieces 1 of different heights are inserted as needed, so that the "I"-shaped mounting feet 12 are inserted into the conical grooves 22 of the base 2. When installing axe-shaped pieces 1, the protrusions 12 on different sides of different axe-shaped pieces 1 are inserted into adjacent grooves 14. The above steps are repeated until the entire absorbing material is installed.

[0050] The structures, functions, and connection forms disclosed herein can be implemented in other ways. For example, the embodiments described above are merely illustrative; multiple components may be combined or integrated into another component. Furthermore, the functional components in the various embodiments herein may be integrated into one functional component, or each functional component may exist physically separately, or two or more functional components may be integrated into one functional component.

[0051] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A chipped wave-absorbing material structure, characterized by, Includes a split axe (1) and a base (2). The split axe (1) has a shell-like structure on both sides (11) and a wedge-shaped main body. The split axe (1) has a mounting foot (12) at its lower end. The base (2) has a weight-reducing hole (21). The four corners of the weight-reducing hole (21) are designed as cone-shaped grooves (22) symmetrical to the mounting foot (12). The split axe (1) and the base (2) are connected through the mounting foot (12). After the split axe (1) is installed on the base (2), it forms a closed space with the base (2).

2. The wave-absorbing material structure according to claim 1, characterized in that, The axe wedges (1) can be connected to each other. The two sides of the axe wedges (1) are respectively provided with a boss (13) and a groove (14). When installed, the boss (13) and the groove (14) make the adjacent axe wedges (1) snap together.

3. The wave-absorbing material structure according to claim 1, characterized in that, The mounting feet (12) of the axe-cutting (1) are "I" shaped, and the shell wall thickness of the axe-cutting (1) is 50mm-100mm.

4. The wave-absorbing material structure according to claim 1, characterized in that, The base (2) is provided with four weight-reducing holes (21), and the axe (1) is installed on each weight-reducing hole (21).

5. The wave-absorbing material structure according to claim 4, characterized in that, The non-cavity cross-shaped part between the weight reduction holes (21) on the base (2) has four mounting countersunk holes (23).

6. The wave-absorbing material structure according to claim 1, characterized in that, The base (2) has a convex flange edge (24) and a groove edge (25) on its side. The convex flange edge (24) and the groove edge (25) enable adjacent bases (2) to be interlocked. The width of the convex flange edge (24) and the groove edge (25) is not less than 10mm.

7. The wave-absorbing material structure according to claim 1, characterized in that, The axe-cut wave-absorbing material structure includes two bases (1) and eight axe-cuts (1). The bases (2) are connected by a convex flange edge (24) and a groove edge (25), and adjacent axe-cuts (1) are connected by a boss (13) and a groove (14).

8. The wave-absorbing material structure according to claim 1, characterized in that, The axe-shaped wave-absorbing material structure includes N bases (2) and 4N axe-shaped cuts (1). The bases (2) are connected by a convex flange edge (24) and a groove edge (25), and adjacent axe-shaped cuts (1) are connected by a boss (13) and a groove (14).

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