Conductive foam facilitating assembly connection

Abstract

This utility model relates to the field of conductive foam technology, and in particular to a conductive foam that is easy to assemble and connect. It includes a first foam and a second foam, with a device body sleeved between the first and second foams. Both the first and second foams have a main adhesive layer and assembly holes. An inner main adhesive layer is placed within each assembly hole. Both the first and second foams have assembly posts and assembly grooves. The assembly posts have plugs and barbs. The assembly grooves have barb grooves with barb adhesive layers and secondary adhesive layers. This design improves the ease and stability of assembly and connection at the contact points of the cylindrical conductive foam structure, enhances the overall waterproof sealing stability of the assembly and bonding parts of the foam body, and improves the bonding stability of the assembly posts inserted into the assembly grooves.

Description

Technical Field

[0001] This utility model relates to the field of conductive foam technology, and in particular to a conductive foam that is easy to assemble and connect. Background Technology

[0002] Conductive foam is a flexible material that combines conductivity and cushioning properties. It can absorb mechanical shocks and provide electromagnetic shielding and electrostatic discharge protection. It is widely used in electronics, communications, aerospace and other fields. Conductive fillers (such as carbon black metal powder) are mixed into the substrate of conductive foam to make the foam conductive as a whole. It is mainly used in communication equipment, aerospace, medical instruments and other fields.

[0003] The conductive foam is typically square or elongated and flat, and is then bonded to the surface of the instrument or equipment using conductive adhesive.

[0004] However, some instruments and equipment have a uniform cylindrical shape. If square or long flat conductive foam is glued to the surface of such instruments and equipment, it is necessary to splice them together one by one, which is quite time-consuming. Therefore, designers have designed a cylindrical conductive foam for such instruments and equipment with a special uniform cylindrical shape. This conductive foam only needs to be fitted onto the outer wall of the instrument and equipment.

[0005] However, some rod-shaped instruments and equipment with uniform cylindrical structures have a relatively high vertical length, which may require the use of multiple cylindrical conductive foams for vertical splicing. At the same time, it is necessary to assemble and connect them at the contact points of each cylindrical conductive foam. However, simply bonding them together at the contact surface between two conductive foams results in low stability and easy loosening.

[0006] Therefore, we designed a cylindrical conductive foam to meet the needs of practical applications. Utility Model Content

[0007] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a conductive foam that is easy to assemble and connect.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] Design a conductive foam that is easy to assemble and connect, including a first foam and a second foam, with a device body sleeved between the first foam and the second foam, a main adhesive layer on both the first foam and the second foam, an assembly hole on both the first foam and the second foam, a main adhesive inner layer inside the assembly hole, an assembly post and an assembly groove on both the first foam and the second foam, a plug and a barb on the assembly post, and a damping layer on the barb.

[0010] The assembly groove is provided with barb grooves, the barb grooves are provided with barb adhesive layers, the assembly grooves are provided with secondary adhesive layers, and each assembly column is provided with a glue inlet groove.

[0011] Both the first foam and the second foam are provided with sealing rings.

[0012] In detail, the assembly columns are six arranged in a circle, and the plug is a conical structure located at the lower end of the assembly columns.

[0013] In detail, the barb block is tilted upward at a 40-degree angle, the barb groove is four arranged in a circle, and the barb adhesive layer is evenly coated along the inner wall of the barb groove.

[0014] In detail, the glue inlet grooves are four in a circular arrangement on the outer wall of the assembly column.

[0015] In detail, the sub-adhesive layer is uniformly coated along the inner wall of the assembly groove, and the damping layer is disposed along the outer wall of the barb block.

[0016] In detail, the main adhesive inner layer is uniformly coated along the inner wall of the assembly hole, and the main adhesive surface layer is coated on the upper surface of the first foam and the second foam respectively.

[0017] In detail, the sealing rings are respectively fitted along the outer wall surfaces of the first foam and the second foam, and the sealing rings are made of FKM fluororubber and have an overall circular structure.

[0018] The design scheme proposed in this utility model has the following beneficial effects in application:

[0019] 1. This utility model provides assembly posts with barbed blocks and assembly grooves with barbed grooves on both the first and second foams, and sets a main adhesive layer, a barbed adhesive layer, and a secondary adhesive layer. First, the second foam is positioned and glued to the instrument body of the cylindrical structure rod. Then, the assembly posts on the first foam are aligned with the corresponding assembly grooves, and the first foam is positioned and glued to the instrument body of the cylindrical structure rod. At this time, each barbed block will be quickly positioned and glued in the barbed groove, thus realizing the convenient assembly and glued bonding of the two foam bodies to the instrument body of the cylindrical structure rod. Overall, it improves the ease and stability of the assembly connection of the conductive foam contact parts of the cylindrical structure.

[0020] 2. This utility model provides sealing ring structures on both the first and second foams. When the two foam bodies are assembled, sleeved, and bonded to the cylindrical structural rod of the instrument body, the sealing rings can effectively and comprehensively compress and seal the assembled and bonded parts of the two foam bodies, preventing the parts from being directly exposed and causing external moisture penetration. This improves the overall waterproof sealing stability of the assembled and bonded parts of the foam bodies.

[0021] 3. This utility model provides an elongated adhesive groove on the circumference of the surface of the assembly column. When the assembly is bonded, the secondary adhesive layer will penetrate into each adhesive groove, increasing the effective bonding area and thus improving the bonding stability of the assembly column inserted into the assembly groove. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the first and second foams of this utility model in their unassembled and connected state.

[0023] Figure 2 For the present utility model Figure 1 A first-person perspective 3D schematic diagram of the first foam in the middle;

[0024] Figure 3 For the present utility model Figure 2 Enlarged view of a section at point M;

[0025] Figure 4 This is a three-dimensional schematic diagram of the first and second foams of this utility model in an assembled and connected state;

[0026] Figure 5 For the present utility model Figure 1 A second-view stereoscopic diagram of the first foam component;

[0027] Figure 6 For the present utility model Figure 5 A magnified view of a portion of point N in the middle.

[0028] In the diagram: 1 First foam; 10 Main adhesive layer; 11 Sealing ring; 2 Second foam; 3 Equipment body; 4 Assembly hole; 41 Main adhesive inner layer; 5 Assembly column; 51 Plug; 52 Glue inlet groove; 6 Assembly groove; 61 Secondary adhesive layer; 7 Barbed block; 71 Damping layer; 8 Barbed groove; 81 Barbed adhesive layer. Detailed Implementation

[0029] 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.

[0030] Reference Figures 1-6 A conductive foam that is easy to assemble and connect includes a first foam 1 and a second foam 2. A device body 3 is sleeved between the first foam 1 and the second foam 2. A main adhesive layer 10 is provided on both the first foam 1 and the second foam 2. An assembly hole 4 is provided on both the first foam 1 and the second foam 2. A main adhesive inner layer 41 is provided in the assembly hole 4. An assembly post 5 and an assembly groove 6 are provided on both the first foam 1 and the second foam 2. A plug 51 and a barb 7 are provided on the assembly post 5. A damping layer 71 is provided on the barb 7.

[0031] The assembly groove 6 is provided with a barb groove 8, the barb groove 8 is provided with a barb adhesive layer 81, the assembly groove 6 is provided with a secondary adhesive layer 61, and the assembly column 5 is provided with a glue inlet groove 52.

[0032] Both the first foam 1 and the second foam 2 are provided with sealing rings 11. The relevant structures of this patent are all bonded together using commonly used conductive adhesives. The relevant structures of this patent are all filled with carbon black metal powder, which has a conductive effect.

[0033] The first foam 1 and the second foam 2 are both commonly used conductive foams, and the main body 3 is an instrument with a uniform rod-shaped cylindrical structure.

[0034] It should be further explained that there are six assembly pillars 5 arranged in a circle, and the plug 51 is a conical structure located at the lower end of the assembly pillars 5. The conical structure of the assembly pillars 5 ensures the precision and smoothness of the insertion of the assembly pillars 5 into the assembly slots 6.

[0035] It should be further explained that the barb block 7 is tilted upward at a 40-degree angle, the barb groove 8 consists of four circumferentially arranged barbs, and the barb adhesive layer 81 is evenly coated along the inner wall of the barb groove 8. The barb adhesive layer 81 is a commonly used conductive adhesive. The barb block 7 is made of polyurethane, which has excellent high elasticity. Its interior is filled with carbon black metal powder, which has a conductive effect. When the barb block 7 is squeezed and inserted into the barb groove 8, the barb block 7 is squeezed and deformed and generates a rebound force, which makes the damping layer 71 fit tightly with the barb groove 8, ensuring the damping friction and anti-slip effect.

[0036] It should be further noted that the glue inlet grooves 52 are four in a circular arrangement on the outer wall of the assembly column 5, so that the secondary adhesive layer 61 can be evenly penetrated into the glue inlet grooves 52, thereby increasing the effective bonding area.

[0037] It should be further noted that the sub-adhesive layer 61 is uniformly coated along the inner wall of the assembly groove 6, and the sub-adhesive layer 61 is a commonly used conductive adhesive.

[0038] The damping layer 71 is fixed along the outer wall of the barb block 7 by conductive adhesive. The damping layer 71 is a silicone damping coating, which has damping friction and anti-slip properties. Its interior is filled with carbon black metal powder, which has a conductive effect.

[0039] It should be further explained that the main adhesive inner layer 41 is uniformly coated along the inner wall of the assembly hole 4, and the main adhesive surface layer 10 is coated on the upper end face of the first foam 1 and the second foam 2 respectively. Both the main adhesive inner layer 41 and the main adhesive surface layer 10 are conductive adhesives with good conductivity, high bonding strength and good temperature resistance, so as to achieve a stable bond between the two foams and the equipment body 3.

[0040] It should be further explained that the sealing ring 11 is respectively glued to the outer wall of the first foam 1 and the second foam 2 by epoxy resin. The sealing ring 11 is made of FKM fluororubber and has an overall ring structure. FKM fluororubber is resistant to high temperature, oil, acid and alkali and has excellent elasticity, which can realize the assembly and extrusion of the outer wall of the second foam 2, thereby achieving the sealing and waterproof sleeve effect after assembly.

[0041] Working method: First, position and fit the second foam 2 onto the cylindrical structural rod of the device body 3. After the main adhesive inner layer 41 in the assembly hole 4 of the second foam 2 solidifies and bonds, it can be firmly bonded to the instrument body 3. Then, align the assembly post 5 on the first foam 1 with the corresponding assembly groove 6 on the second foam 2. Next, vertically fit the first foam 1 onto the device body 3 through the assembly hole 4. After the main adhesive inner layer 41 in the assembly hole 4 of the first foam 1 solidifies and bonds, it can be firmly bonded to the instrument body 3.

[0042] At the same time, the assembly column 5 will be inserted into the matching assembly slot 6, and the liquid adhesive layer 61 will come into contact with the outer wall surface of the assembly column 5. After the adhesive layer 61 solidifies and bonds, a stable bond can be achieved.

[0043] Furthermore, each barb block 7 will simultaneously and quickly position and insert into the matching barb groove 8. The pre-set liquid adhesive layer 81 in the barb groove 8 will make full contact with the barb block 7. After the barb adhesive layer 81 solidifies and bonds, a stable bond can be achieved.

[0044] The above-mentioned overall design enables the convenient assembly, splicing, and bonding of the two foam bodies onto the cylindrical structure rod of the instrument body 3, thereby improving the ease and stability of assembly and connection of the conductive foam contact parts of the cylindrical structure.

[0045] Furthermore, after the two foam bodies are assembled, fitted, and bonded to the cylindrical structural rod of the instrument body, refer to... Figure 4 At this time, the sealing ring 11 at the lower end of the first foam 1 will be fully squeezed and fitted onto the outer wall of the second foam 2, achieving the effect of compression and sealing. This avoids the direct exposure of the assembly and bonding parts of the first foam 1 and the second foam 2, which could cause external moisture to penetrate. This improves the overall waterproof sealing stability of the assembly and bonding parts of the foam body.

[0046] In addition, during assembly and bonding, the liquid adhesive sub-adhesive layer 61 will seep into each glue inlet groove 52. After the sub-adhesive layer 61 solidifies and bonds, the effective bonding area is increased, thereby improving the bonding stability of the assembly column 5 inserted into the assembly groove 6.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electrically conductive foam for facilitating an assembled connection, comprising a first foam (1) and a second foam (2), characterized in that: A device body (3) is sleeved between the first foam (1) and the second foam (2). A main adhesive layer (10) is provided on both the first foam (1) and the second foam (2). An assembly hole (4) is provided on both the first foam (1) and the second foam (2). A main adhesive inner layer (41) is provided inside the assembly hole (4). An assembly post (5) and an assembly groove (6) are provided on both the first foam (1) and the second foam (2). A plug (51) and a barb (7) are provided on the assembly post (5). A damping layer (71) is provided on the barb (7). The assembly groove (6) is provided with a barb groove (8), the barb groove (8) is provided with a barb adhesive layer (81), the assembly groove (6) is provided with a secondary adhesive layer (61), and the assembly column (5) is provided with a glue inlet groove (52). Both the first foam (1) and the second foam (2) are provided with sealing rings (11).

2. The electrically conductive foam of claim 1, wherein: The assembly columns (5) are six arranged in a circle, and the plug (51) is a conical structure located at the lower end of the assembly columns (5).

3. The electrically conductive foam of claim 1, wherein: The barb block (7) is tilted upward at a 40-degree angle, the barb groove (8) consists of four circumferentially arranged barbs, and the barb adhesive layer (81) is evenly coated along the inner wall of the barb groove (8).

4. The electrically conductive foam of claim 1, wherein: The glue inlet grooves (52) are four in a circular arrangement on the outer wall of the assembly column (5).

5. The electrically conductive foam of claim 1, wherein: The sub-adhesive layer (61) is uniformly coated along the inner wall of the assembly groove (6), and the damping layer (71) is disposed along the outer wall of the barb block (7).

6. The electrically conductive foam of claim 1, wherein: The main adhesive inner layer (41) is uniformly coated along the inner wall of the assembly hole (4), and the main adhesive surface layer (10) is coated on the upper surface of the first foam (1) and the second foam (2).

7. The electrically conductive foam of claim 1, wherein: The sealing ring (11) is fitted along the outer wall of the first foam (1) and the second foam (2), respectively. The sealing ring (11) is made of FKM fluororubber and has an overall circular structure.

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