A shielded case for a remote terminal

Abstract

The utility model discloses a shielding shell for remote terminal, belongs to mobile communication technical field, including the casing, the inner wall fixed of casing has first metal shielding layer, and the casing sets up as copper aluminium alloy material, the inside of first metal shielding layer is provided with second metal shielding layer, and the first metal shielding layer is filled with filling layer between second metal shielding layer. The utility model has the advantages that: through first metal shielding layer and second metal shielding layer form multilayer shielding structure, improve shielding performance, effectively block the penetration of electromagnetic wave, protect internal electronic components from outside electromagnetic interference, through the filling layer can play the role of supporting and fixing two metal shielding layers, prevent short circuit between two metal shielding layers simultaneously, through the further enhancement of conductive filter screen shielding performance, filter out the electromagnetic interference signal that possibly enters the casing, do not affect air circulation simultaneously, ensure that the heat dissipation carries on normally.

Description

Technical Field

[0001] This utility model relates to the field of mobile communication technology, and in particular to a shielding shell for remote terminals. Background Technology

[0002] A remote unit is a crucial device in a communication system, typically used in conjunction with a near-end unit. In mobile communication networks, such as in a repeater system, the near-end unit couples the base station signal and converts it into an optical signal for transmission; the remote unit, deployed on the user side or in a remote area of ​​signal coverage, receives the optical signal from the near-end unit, converts it back into an electrical signal, and then sends it to devices such as leaky cables to achieve signal coverage in a specific area.

[0003] Remote shielding enclosures are key components for ensuring the electromagnetic compatibility and signal stability of equipment. Existing shielding enclosures typically absorb or reflect electromagnetic waves only through the metal shell, but lack an internal shielding structure. The metal shell forms a closed cavity, and when the wavelength of the electromagnetic wave matches the size of the cavity, the electromagnetic energy is repeatedly reflected within the cavity, easily interfering with sensitive circuits inside the equipment, leading to increased bit error rate or signal distortion. Furthermore, existing technologies often use ventilation holes in the shielding enclosure for heat dissipation, but these holes cannot guarantee shielding effectiveness. When electromagnetic waves encounter these holes, they can easily leak through, affecting the shielding effect. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A shielding shell for a remote device includes a shell, a first metal shielding layer fixed to the inner wall of the shell, and the shell is made of copper-aluminum alloy. A second metal shielding layer is disposed inside the first metal shielding layer. A filler layer is filled between the first metal shielding layer and the second metal shielding layer, and the filler layer is made of glass fiber reinforced epoxy resin. A heat dissipation component is disposed on one side of the shell.

[0007] The heat dissipation assembly includes hexagonal honeycomb holes formed in the inner cavity of the housing, a metal wire mesh is provided on one side of the housing, and a conductive filter is provided on one side of the metal wire mesh.

[0008] As a preferred embodiment of the shielding shell for remote terminals described in this utility model, the inner wall of the second metal shielding layer is fixed with multiple sets of metal partitions.

[0009] As a preferred embodiment of the shielding shell for remote terminals described in this utility model, a shell cover is installed on one side of the shell, and the inner wall of the shell cover is threaded with mounting bolts, and the shell cover is fixed to the shell by the mounting bolts.

[0010] As a preferred embodiment of the shielding shell for remote terminals described in this utility model, a first fin is fixed on one side of the shell cover, and a second fin is fixed on both the top and bottom of the shell.

[0011] As a preferred embodiment of the shielding shell for remote terminals described in this utility model, a sealing gasket is installed on one side of the shell to improve the sealing between the shell and the cover, and the sealing gasket is made of silicone.

[0012] As a preferred embodiment of the shielding shell for remote terminals described in this utility model, a first frame and a second frame are respectively fixed to the outer sides of the metal wire mesh and the conductive filter.

[0013] As a preferred embodiment of the shielding shell for remote terminals described in this utility model, the first frame and the second frame are each fixed with a mounting block on their outer sides, and the inner wall of the mounting block is threaded with a fixing bolt, and the first frame and the second frame are fixed to the shell by the fixing bolt.

[0014] The beneficial effects of this utility model are as follows: the multi-layer shielding structure formed by the first metal shielding layer and the second metal shielding layer improves the shielding performance, effectively blocks the penetration of electromagnetic waves, and protects the internal electronic components from external electromagnetic interference. The filling layer can support and fix the two metal shielding layers, while preventing short circuits between the two metal shielding layers. The conductive filter further enhances the shielding performance, filters out electromagnetic interference signals that may enter the shell, and does not affect air circulation, ensuring normal heat dissipation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort. Among them:

[0016] Figure 1 This is a structural diagram of the shielding shell used by the remote unit.

[0017] Figure 2 This is a schematic diagram of the structure of the cover in the shielding housing for remote units.

[0018] Figure 3 This is a schematic diagram of the internal structure of the shielding shell for remote terminals.

[0019] Figure 4 This is a schematic diagram of the heat dissipation components in the shielding shell for remote terminals.

[0020] The following are the labeling elements in the diagram: 1. Shell; 2. First metal shielding layer; 3. Second metal shielding layer; 4. Filling layer; 5. Heat dissipation assembly; 51. Hexagonal honeycomb holes; 52. Metal wire mesh; 53. Conductive filter; 6. Metal partition; 7. Shell cover; 8. Mounting bolt; 9. First fin; 10. Second fin; 11. Sealing gasket; 12. First frame; 13. Second frame; 14. Mounting block; 15. Fixing bolt. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example 1:

[0025] Reference Figures 1-4 This is the first embodiment of the present invention. This embodiment provides a shielding shell for a remote device, including a shell 1. A first metal shielding layer 2 is fixed to the inner wall of the shell 1, and the shell 1 is made of copper-aluminum alloy. A second metal shielding layer 3 is provided on the inner side of the first metal shielding layer 2. A filling layer 4 is filled between the first metal shielding layer 2 and the second metal shielding layer 3, and the filling layer 4 is made of glass fiber reinforced epoxy resin. A heat dissipation component 5 is provided on one side of the shell 1.

[0026] The housing 1 provides installation space and protection for internal components. The copper-aluminum alloy material has certain strength and conductivity, which helps to initially shield external electromagnetic interference. The first metal shielding layer 2 and the second metal shielding layer 3 form a multi-layer shielding structure, which improves the shielding performance, effectively blocks the penetration of electromagnetic waves, and protects the internal electronic components from external electromagnetic interference. The glass fiber reinforced epoxy resin filling layer 4 has good insulation performance and mechanical strength, which can support and fix the two metal shielding layers, prevent short circuits between the two metal shielding layers, and absorb and attenuate electromagnetic waves to a certain extent, thus improving the shielding effect. The heat dissipation component 5 facilitates subsequent heat dissipation of the housing 1.

[0027] The heat dissipation component 5 includes hexagonal honeycomb holes 51 opened in the inner cavity of the housing 1, a metal wire mesh 52 is provided on one side of the housing 1, and a conductive filter 53 is provided on one side of the metal wire mesh 52.

[0028] The hexagonal honeycomb holes 51 facilitate heat dissipation of the housing 1. The metal wire mesh 52 has a certain degree of conductivity, which can help shield electromagnetic interference while allowing air to pass through, ensuring the heat dissipation effect. The conductive filter 53 further enhances the shielding performance, filtering out electromagnetic interference signals that may enter the housing 1, while not affecting air circulation, ensuring normal heat dissipation.

[0029] Example 2:

[0030] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0031] Specifically, multiple sets of metal partitions 6 are fixed to the inner wall of the second metal shielding layer 3.

[0032] The metal partition 6 divides the internal space of the housing 1 into multiple areas, which helps to reduce electromagnetic interference between internal components, improve the electromagnetic compatibility of the equipment, and also provides a certain structural support.

[0033] Specifically, a cover 7 is installed on one side of the housing 1, and a mounting bolt 8 is threaded onto the inner wall of the cover 7, and the cover 7 is fixed to the housing 1 by the mounting bolt 8.

[0034] The cover 7 can be installed on one side of the housing 1 by means of the mounting bolt 8. The cover 7 closes the housing 1 and protects the internal components. The cover 7 is also easy to disassemble and install, which facilitates the maintenance and repair of the internal components.

[0035] Specifically, a first fin 9 is fixed to one side of the shell cover 7, and a second fin 10 is fixed to the top and bottom of the shell 1.

[0036] The first fin 9 and the second fin 10 dissipate heat from the inside of the housing 1 more quickly, improving heat dissipation efficiency and reducing the operating temperature of the internal components.

[0037] Specifically, a sealing gasket 11 is installed on one side of the housing 1 to improve the seal between it and the housing cover 7, and the sealing gasket 11 is made of silicone.

[0038] The sealing gasket 11 can improve the sealing between the housing 1 and the cover 7, prevent dust, moisture and other substances from entering the interior of the housing 1, protect the internal components, and also help improve the shielding effect.

[0039] Example 3:

[0040] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0041] Specifically, a first frame 12 and a second frame 13 are fixed to the outer sides of the metal wire mesh 52 and the conductive filter 53, respectively.

[0042] The first frame 12 and the second frame 13 are respectively fixed on the outside of the metal wire mesh 52 and the conductive filter 53, which serve to fix and protect the metal wire mesh 52 and the conductive filter 53, and at the same time facilitate their installation on the housing 1.

[0043] Specifically, mounting blocks 14 are fixed to the outer sides of the first frame 12 and the second frame 13, and fixing bolts 15 are threadedly connected to the inner wall of the mounting blocks 14. The first frame 12 and the second frame 13 are fixed to the housing 1 by fixing bolts 15.

[0044] The mounting block 14 can be installed on the housing 1 by fixing bolt 15, ensuring the stable installation of the metal wire mesh 52 and the conductive filter 53, so that they can perform their heat dissipation and shielding functions normally.

[0045] In use, the housing 1 provides installation space and protection for internal components. A multi-layered shielding structure is formed by the first metal shielding layer 2 and the second metal shielding layer 3, improving shielding performance and effectively blocking electromagnetic wave penetration, protecting internal electronic components from external electromagnetic interference. The glass fiber reinforced epoxy resin filler layer 4 has good insulation properties and mechanical strength, supporting and fixing the two metal shielding layers while preventing short circuits between them. It also absorbs and attenuates electromagnetic waves to a certain extent, improving the shielding effect. Hexagonal honeycomb holes 51 facilitate heat dissipation from the housing 1. The metal mesh 52 has a certain degree of conductivity, which helps shield electromagnetic interference while allowing air to pass through, ensuring heat dissipation. The conductive filter 53 further enhances the shielding performance, filtering out any potential entry points. The electromagnetic interference signal of the housing 1 is reduced without affecting air circulation, ensuring normal heat dissipation. The internal space of the housing 1 is divided into multiple areas by the metal partition 6, which helps to reduce electromagnetic interference between internal components, improve the electromagnetic compatibility of the equipment, and also provides a certain structural support. The first fin 9 and the second fin 10 dissipate the heat inside the housing 1 more quickly, improving heat dissipation efficiency and reducing the operating temperature of internal components. The sealing gasket 11 improves the sealing between the housing 1 and the cover 7, preventing dust, moisture, etc. from entering the interior of the housing 1, protecting the internal components, and also helps to improve the shielding effect. The mounting block 14 can be installed on the housing 1 by the fixing bolt 15, ensuring the stable installation of the metal wire mesh 52 and the conductive filter 53, so that they can perform their heat dissipation and shielding functions normally.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A shielding shell for a remote terminal, comprising a shell (1), characterized in that: The inner wall of the housing (1) is fixed with a first metal shielding layer (2), and the housing (1) is made of copper-aluminum alloy. A second metal shielding layer (3) is provided on the inner side of the first metal shielding layer (2). A filling layer (4) is filled between the first metal shielding layer (2) and the second metal shielding layer (3), and the filling layer (4) is made of glass fiber reinforced epoxy resin. A heat dissipation component (5) is provided on one side of the housing (1). The heat dissipation assembly (5) includes hexagonal honeycomb holes (51) opened in the inner cavity of the housing (1), a metal wire mesh (52) is provided on one side of the housing (1), and a conductive filter (53) is provided on one side of the metal wire mesh (52).

2. The shielding shell for remote terminals as described in claim 1, characterized in that: Multiple sets of metal partitions (6) are fixed to the inner wall of the second metal shielding layer (3).

3. The shielding shell for remote terminals as described in claim 1, characterized in that: A cover (7) is installed on one side of the housing (1), and the inner wall of the cover (7) is threaded with a mounting bolt (8), and the cover (7) is fixed to the housing (1) by the mounting bolt (8).

4. The shielding shell for remote terminals as described in claim 3, characterized in that: A first fin (9) is fixed on one side of the shell cover (7), and a second fin (10) is fixed on the top and bottom of the shell (1).

5. The shielding shell for remote terminals as described in claim 3, characterized in that: A sealing gasket (11) for improving the sealing between the housing (1) and the cover (7) is installed on one side of the housing (1), and the sealing gasket (11) is made of silicone.

6. The shielding shell for remote terminals as described in claim 1, characterized in that: The outer sides of the metal wire mesh (52) and the conductive filter (53) are respectively fixed with a first frame (12) and a second frame (13).

7. The shielding shell for remote terminals as described in claim 6, characterized in that: The first frame (12) and the second frame (13) are both fixed with mounting blocks (14) on their outer sides. The inner wall of the mounting block (14) is threaded with fixing bolts (15), and the first frame (12) and the second frame (13) are fixed to the shell (1) by fixing bolts (15).

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