Multi-layer composite shielding ball

Abstract

The multilayer composite shielding ball comprises an inner shielding ball body and an outer protection ball body, the inner shielding ball body is composed of an inner upper hemisphere and an inner lower hemisphere, inner openings are formed in the center of the top and the center of the bottom of the inner shielding ball body, and an inner annular fixing wall is arranged on the periphery of the inner opening in the top; inner butt joint walls are arranged on the opposite sides of the inner upper hemisphere and the inner lower hemisphere; a plurality of groups of annular bulges are arranged on the outer wall of the inner shielding sphere, and an outer shielding layer covers the annular bulges; the outer protection ball body is composed of an outer upper hemisphere and an outer lower hemisphere, outer openings are formed in the centers of the top and the bottom of the outer protection ball body, and an outer annular fixing wall is arranged on the periphery in the top outer opening. Outer butt joint walls are arranged on the opposite sides of the outer upper hemisphere and the outer lower hemisphere, and the outer upper hemisphere and the outer lower hemisphere are in rotary butt joint through threads on the outer butt joint walls. The cable adopts a double-layer structure, and is high in structural strength and good in shielding effect.

Description

Technical Field

[0001] This utility model relates to the field of shielding accessories, and in particular to a multi-layer composite shielding ball. Background Technology

[0002] With the widespread use of modern electronic devices and the increasing complexity of the electromagnetic environment, electromagnetic interference (EMI) has become a prominent problem. Traditional shielding methods, such as using metal plates or mesh, can reduce EMI to some extent, but their shielding effectiveness is low and their frequency coverage is narrow, potentially only effective for a specific frequency band. Multi-layer structures, however, can cover a wider frequency band, creating multiple reflections and absorptions, thus improving the overall effect. Therefore, there is an urgent need to develop a multi-layer composite shielding sphere to solve these problems. Utility Model Content

[0003] The purpose of this invention is to provide a multi-layer composite shielding ball that is easy to connect and has good shielding performance.

[0004] The purpose of this invention is achieved as follows: a multi-layer composite shielding sphere, comprising an inner shielding sphere and an outer protective sphere,

[0005] The inner shielding sphere consists of an upper inner hemisphere and a lower inner hemisphere. An inner opening is located at the center of the top and bottom of the inner shielding sphere. An inner annular fixing wall is located around the outer perimeter of the top inner opening, and the inner wall of the inner annular fixing wall has internal threads. An inner mating wall is located on the opposite side of the upper and lower inner hemispheres, and the upper and lower inner hemispheres are rotatably connected via the threads on the inner mating wall. Multiple sets of annular protrusions are located on the outer wall of the inner shielding sphere, and an outer shielding layer covers these annular protrusions.

[0006] The outer protective sphere consists of an upper outer hemisphere and a lower outer hemisphere. The top and bottom centers of the outer protective sphere are provided with outer openings. An outer annular fixing wall is provided around the inner periphery of the top outer opening. The inner wall of the outer annular fixing wall is provided with external threads. The inner upper hemisphere and the outer upper hemisphere are rotatably fixedly connected through the inner annular fixing wall and the outer annular fixing wall. The outer upper hemisphere and the outer lower hemisphere are provided with outer mating walls on opposite sides. The outer upper hemisphere and the outer lower hemisphere are rotatably mated through the threads on the outer mating walls.

[0007] Preferably, the outer docking wall is provided with a fixing block, and the fixing blocks are fixedly connected to each other by bolts.

[0008] Preferably, a support arm is provided on the inner periphery of the outer opening at the bottom, and a rubber layer is provided at the end of the support arm. After the outer upper hemisphere and the outer lower hemisphere are rotated and engaged, the end of the support arm abuts against the bottom of the inner lower hemisphere.

[0009] Preferably, the outer shielding layer is composed of two sets of copper-nickel alloy woven meshes, which are fixed to the annular protrusion by welding.

[0010] Preferably, the outer openings are each provided with a sealing cover.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] 1、 the inner shielding spherical body is formed by the inner upper half spherical body and the inner lower half spherical body through thread rotation butt joint, the outer protective spherical body is also formed by the outer upper half spherical body and the outer lower half spherical body through thread rotation butt joint, so that the assembly and disassembly of the spherical body become simple and fast, and it is favorable for subsequent maintenance and replacement of parts;

[0013] 2、 the inner shielding spherical body and the outer shielding layer are double-layer designs, can effectively block electromagnetic interference, improve shielding effect, simultaneously, the firm connection between the outer shielding layer and the annular protrusion is ensured by the welding mode, further enhances shielding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structural schematic diagram of the utility model.

[0015] Among them, 1 inner shielding spherical body, 101 upper half spherical body, 102 inner lower half spherical body, 2 outer protective spherical body, 201 upper half spherical body, 202 outer lower half spherical body, 3 inner opening, 4 inner annular fixed wall, 5 inner butt joint wall, 6 annular protrusion, 7 outer shielding layer, 8 outer opening, 9 outer annular fixed wall, 10 butt joint wall, 11 fixed block, 12 support arm. DETAILED DESCRIPTION

[0016] The following specific embodiments illustrate the embodiments of the utility model, and those skilled in the art can easily understand other advantages and effects of the utility model from the contents disclosed in the specification.

[0017] It should be understood that, in the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the utility model product when it is usually placed, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance. The terms "horizontal", "vertical", "overhanging" and the like do not mean that the parts must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0018] In the description of the utility model, still need to explain, unless another explicit provision and limitation, term '' set '', '' install '', '' link '', '' connect '' should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be two element inside intercommunication. For ordinary skilled person in the art, can understand the specific meaning of above-mentioned term in the utility model with specific circumstances.

[0019] As Figure 1 The utility model discloses a multilayer composite shielding ball, including inner shielding ball 1 and outer protective ball 2, inner shielding ball 1 is by inner upper half ball 101 and inner lower half ball 102, and the top and bottom center of inner shielding ball 1 is equipped with inner opening 3, and the top inner opening 3 is equipped with inner annular fixed wall 4 on the periphery, and the inner wall of inner annular fixed wall 4 is equipped with inner thread, and the opposite side of inner upper half ball 101 and inner lower half ball 102 is equipped with inner butt joint wall 5, and inner upper half ball 101 and inner lower half ball 102 are connected through the thread rotation butt joint on inner butt joint wall 5, and the outer wall of inner shielding ball 1 is equipped with multiple annular protrusions 6, and the annular protrusion 6 is covered with outer shielding layer 7.

[0020] The utility model discloses a multilayer composite shielding ball, including inner shielding ball 1 and outer protective ball 2, inner shielding ball 1 is by inner upper half ball 101 and inner lower half ball 102, and the top and bottom center of inner shielding ball 1 is equipped with inner opening 3, and the top inner opening 3 is equipped with inner annular fixed wall 4 on the periphery, and the inner wall of inner annular fixed wall 4 is equipped with inner thread, and the opposite side of inner upper half ball 101 and inner lower half ball 202 is equipped with outer butt joint wall 10, and outer upper half ball 201 and outer lower half ball 202 are connected through the thread rotation butt joint on outer butt joint wall 10.

[0021] As Figure 1 The utility model discloses a multilayer composite shielding ball, including inner shielding ball 1 and outer protective ball 2, inner shielding ball 1 is by inner upper half ball 101 and inner lower half ball 102, and the top and bottom center of inner shielding ball 1 is equipped with inner opening 3, and the top inner opening 3 is equipped with inner annular fixed wall 4 on the periphery, and the inner wall of inner annular fixed wall 4 is equipped with inner thread, and the opposite side of inner upper half ball 101 and inner lower half ball 202 is equipped with outer butt joint wall 10, and outer upper half ball 201 and outer lower half ball 202 are connected through the thread rotation butt joint on outer butt joint wall 10.

[0022] As Figure 1 The utility model discloses a multilayer composite shielding ball, including inner shielding ball 1 and outer protective ball 2, inner shielding ball 1 is by inner upper half ball 101 and inner lower half ball 102, and the top and bottom center of inner shielding ball 1 is equipped with inner opening 3, and the top inner opening 3 is equipped with inner annular fixed wall 4 on the periphery, and the inner wall of inner annular fixed wall 4 is equipped with inner thread, and the opposite side of inner upper half ball 101 and inner lower half ball 202 is equipped with outer butt joint wall 10, and outer upper half ball 201 and outer lower half ball 202 are connected through the thread rotation butt joint on outer butt joint wall 10.

[0023] As Figure 1As shown, the outer shielding layer 7 consists of two sets of copper-nickel alloy braided meshes, which are fixed to the annular protrusion 6 by welding. The two sets of copper-nickel alloy braided meshes facilitate the separation and assembly of the inner shielding sphere. The copper-nickel alloy braided meshes have good conductivity and shielding performance, and can effectively block electromagnetic interference.

[0024] like Figure 1 As shown, each of the six external openings is equipped with a sealing cap (not shown in the figure). After the double-layer shielding ball is installed on the cable or columnar object, the opening is sealed by the sealing cap. The sealing cap is also made of a material with shielding function. In addition, depending on the usage scenario, the shielding ball can be customized with a structure without a top opening and only a bottom opening.

[0025] The working principle of this utility model is explained as follows: The inner shielding sphere is composed of two hemispheres, which are connected by a threaded rotation to form a closed internal space, which can effectively block the penetration of external electromagnetic waves and protect the internal equipment from electromagnetic interference; the annular protrusions on its surface and the outer shielding layer further enhance the electromagnetic shielding effect; the outer protective sphere is also composed of two hemispheres, which are connected to the inner shielding sphere by a thread, providing additional physical protection.

[0026] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention. The technical content for which protection is sought in the present invention has been fully described in the claims.

Claims

1. A multi-layer composite shielding sphere, characterized in that, Includes an inner shielding sphere and an outer protective sphere. The inner shielding sphere consists of an upper inner hemisphere and a lower inner hemisphere. An inner opening is located at the center of the top and bottom of the inner shielding sphere. An inner annular fixing wall is located around the outer perimeter of the top inner opening, and the inner wall of the inner annular fixing wall has internal threads. An inner mating wall is located on the opposite side of the upper and lower inner hemispheres, and the upper and lower inner hemispheres are rotatably connected via the threads on the inner mating wall. Multiple sets of annular protrusions are located on the outer wall of the inner shielding sphere, and an outer shielding layer covers these annular protrusions. The outer protective sphere consists of an upper outer hemisphere and a lower outer hemisphere. The top and bottom centers of the outer protective sphere are provided with outer openings. An outer annular fixing wall is provided around the inner periphery of the top outer opening. The inner wall of the outer annular fixing wall is provided with external threads. The inner upper hemisphere and the outer upper hemisphere are rotatably fixedly connected through the inner annular fixing wall and the outer annular fixing wall. The outer upper hemisphere and the outer lower hemisphere are provided with outer mating walls on opposite sides. The outer upper hemisphere and the outer lower hemisphere are rotatably mated through the threads on the outer mating walls.

2. The multi-layer composite shielding sphere according to claim 1, characterized in that, The outer docking wall is provided with a fixing block, and the fixing blocks are fixedly connected to each other by bolts.

3. The multi-layer composite shielding sphere according to claim 1, characterized in that, A support arm is provided on the inner periphery of the outer opening at the bottom. The end of the support arm is provided with a rubber layer. After the outer upper hemisphere and outer lower hemisphere are rotated and engaged, the end of the support arm abuts against the bottom of the inner lower hemisphere.

4. The multi-layer composite shielding sphere according to claim 1, characterized in that, The outer shielding layer consists of two sets of copper-nickel alloy woven meshes, which are fixed to the annular protrusion by welding.

5. A multi-layer composite shielding sphere according to claim 1, characterized in that, Each of the external openings is equipped with a sealing cap.

Images