Shelter with high electromagnetic shielding effectiveness

Abstract

The utility model discloses a square cabin with high electromagnetic shielding effectiveness. Conductive shielding cloth is adhered to the inner surface of each cabin plate of the square cabin; a metal gasket is arranged between the window and the cabin plate, and the metal gasket comprises silver-plated brass and a monel alloy woven wire mesh which are stacked in the direction from the cabin plate to the window; sealing grooves are formed in the door opening frame and the door frame of the cabin door, shielding sealing strips are filled in the sealing grooves, and each shielding sealing strip comprises a rubber core and a tin-plated phosphor bronze wire mesh wrapping the rubber core. On the basis that an original shelter structure is not changed or damaged, shielding effectiveness treatment is conducted on the assembling and matching positions of doors and windows of the shelter in a targeted mode, and therefore the overall shielding effectiveness of the shelter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of square cabins, and more specifically, to a square cabin with high electromagnetic shielding efficiency. Background Art

[0002] During the manufacturing process of the square cabin, each cabin panel is pressed into shape by a large plate press. The shielding effect of the cabin panel can meet the shielding requirements. However, at locations such as doors and windows, shielding leakage may occur due to inadequate shielding treatment at the assembly points, resulting in the overall shielding effectiveness of the square cabin failing to meet the standards during use. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the utility model innovatively provides a square cabin with high electromagnetic shielding efficiency. Without changing or damaging the original square cabin structure, the shielding efficiency of the door and window assembly points of the square cabin is targetedly treated, thereby improving the overall shielding efficiency of the square cabin.

[0004] In order to achieve the above-mentioned technical objectives, the utility model discloses a square cabin with high electromagnetic shielding efficiency, wherein the inner surface of each cabin panel of the square cabin is pasted with conductive shielding cloth; a metal gasket is provided between the window and the cabin panel, and the metal gasket includes a silver-plated brass and monel alloy woven wire mesh stacked from the cabin panel toward the window; a sealing groove is provided on the door frame and the door frame of the cabin door, and the sealing groove is filled with a shielding sealing strip, and the shielding sealing strip includes a rubber core and a tin-plated phosphor bronze metal wire mesh wrapped around the rubber core.

[0005] Furthermore, the ventilation openings of the cabin are equipped with ventilation waveguides.

[0006] Furthermore, a shielding conductive pad is provided at the mounting screw of the ventilation waveguide, and the nail body of the mounting screw passes through the shielding conductive pad.

[0007] Furthermore, the thickness of the shielding conductive pad is not less than 4 mm.

[0008] Furthermore, the installation and fixing position of the ventilation waveguide is wrapped with a conductive shielding cloth.

[0009] Furthermore, an inner edging is provided at the joint position of each cabin board of the square cabin, and a copper screen or a nickel screen is padded between the inner edging and the cabin board.

[0010] Furthermore, the copper mesh or nickel mesh is the same length as the inner edging.

[0011] Furthermore, an adapter plate is provided on the inner side of the small door frame of the cabin, and a metal wire pad is laid between the adapter plate and the small door frame.

[0012] Furthermore, the small door frame is an aluminum profile door frame that has been subjected to conductive oxidation treatment.

[0013] Furthermore, the hatch door frame is an aluminum profile door frame that has undergone conductive oxidation treatment.

[0014] The beneficial effects of the utility model are:

[0015] The utility model performs targeted shielding efficiency treatment on the assembly points of the doors and windows of the square cabin without changing or damaging the original structure of the square cabin, thereby improving the overall shielding efficiency of the square cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of window installation according to an embodiment of the present invention.

[0017] Figure 2 It is a schematic diagram of the installation of the hatch of an embodiment of the present utility model.

[0018] Figure 3 This is a schematic diagram of the installation of a ventilation waveguide at the ventilation port of a shelter according to an embodiment of the present invention.

[0019] Figure 4 It is a schematic diagram of the seams of the cabin panels of an embodiment of the present utility model.

[0020] Figure 5 It is a schematic diagram of the installation of a small door in an embodiment of the present utility model.

[0021] In the figure,

[0022] 1. Cabin panel; 2. Window; 21. Rubber gasket; 3. Metal liner; 31. Silver-plated brass; 32. Monel alloy woven wire mesh; 4. L-shaped connecting plate; 5. Press frame; 6. Hatch door frame; 7. Door frame; 8. Shielding seal; 9. Ventilation door; 10. Ventilation waveguide; 11. Shielded conductive liner; 12. Conductive shielding cloth; 13. Inner edging; 14. Copper or nickel screen; 15. Small door; 16. Small door frame; 17. Metal wire liner; 18. Adapter plate. DETAILED DESCRIPTION

[0023] The following is a detailed explanation and description of the high electromagnetic shielding efficiency cabin provided by the present invention in conjunction with the drawings in the specification.

[0024] This embodiment specifically discloses a square cabin with high electromagnetic shielding efficiency, which is assembled from six cabin panels 1 at the top, bottom, left, right, front and back. A cabin door is installed on one of the cabin panels 1, windows 2 are installed on one or several of the cabin panels 1, small doors 15 are installed on one or several of the cabin panels 1, and ventilation holes are provided on one or several of the cabin panels 1.

[0025] Conductive shielding cloth is pasted on the inner surface of each cabin panel 1 of the square cabin. In this embodiment, the conductive shielding cloth is copper-nickel conductive shielding cloth. The inner surface of the cabin panel 1 on which the conductive shielding cloth is laid is cleaned and polished to ensure that the inner surface of the cabin panel 1 is smooth, and then the conductive shielding cloth is laid and pasted, thereby improving the electromagnetic shielding effectiveness of the cabin panel 1.

[0026] As a component of the shelter, the window 2 is prone to shielding leakage problems at the window position. Figure 1 As shown, a metal liner 3 is provided between the window 2 and the panel 1. The metal liner 3 comprises silver-plated brass 31 and monel alloy woven wire mesh 32 stacked from the panel 1 toward the window 2. Specifically, as shown in FIG. Figure 1 As shown, the window 2 is connected to the cabin 1 through an L-shaped connecting plate 4 and a pressure frame 5. One side plate of the L-shaped connecting plate 4 is fixedly connected to the window 2. A silver-plated brass 31 with a metal gasket 3 is placed between the other side plate of the L-shaped connecting plate 4 and the cabin 1. Screws or rivets pass through the side plates of the L-shaped connecting plate 4 and the silver-plated brass 31 to connect to the cabin 1. The silver-plated brass 31 is used to improve the electromagnetic shielding at the connection between the screws or rivets to avoid shielding leakage. The dimension of the silver-plated brass 31 along the thickness direction of the cabin 1 is greater than the thickness of the window 2. The silver-plated brass 31 can extend to the outer surface of the cabin 1 and be connected to the cabin 1 through screws or rivets. The monel alloy woven wire mesh 32 is located between the silver-plated brass 31 and the window 2. The thickness of the monel alloy woven wire mesh 32 can be the same as the thickness of the window 2. Silver-plated brass 31 can extend toward window 2 on the outer side of monel alloy woven wire mesh 32. A rubber gasket 21 is provided between this extension and window 2 for sealing, providing rainproof sealing and cushioning, thereby protecting the glass. A press frame 5 is provided on the inner side of the cabin. The press frame 5 is in a multi-segment, zigzag shape. One end of the press frame 5 is fixedly connected to window 2, for example, by adhesive bonding, while the other end of the press frame 5 is fixedly connected to the cabin panel 1 by screws or rivets. Silver-plated brass 31 can also be provided between this portion of the press frame 5 and the cabin panel 1, with the screws or rivets passing through the silver-plated brass 31 to prevent shielding leakage. The provision of the metal gasket 3 improves the shielding effectiveness of the assembly surface, reducing the gaps between the slots and holes at the seams or joints between the window 2 and the cabin panel 1. The metal gasket 3 is compatible with the mating surface and exhibits corrosion resistance, elasticity, and mechanical wear resistance. It also possesses electrical properties that enhance the cabin's electromagnetic shielding effectiveness.

[0027] like Figure 2As shown, when the hatch door is installed on the deck 1, the hatch door frame 6 is installed on the deck 1, and the hatch door frame 7 is pressed against the hatch door frame 6 to install the hatch door within the hatch door frame 6. The hatch door frame 6 and the door frame 7 are both provided with sealing grooves, which are filled with shielding sealing strips 8. The shielding sealing strips 8 include a rubber core and a tin-plated phosphor bronze wire mesh wrapped around the rubber core. The hatch door frame 6 and the door frame 7 are both provided with ridges at positions corresponding to the sealing grooves, which are used to press against the other sealing strip to achieve a sealed installation of the hatch door. In this embodiment, the hatch door frame 6 is an aluminum profile door frame that has been treated with conductive oxidation, and the flatness of the door frame is ensured to be no greater than 0.5mm; use a blade to gently scrape off the sealant exposed on the door frame 7 and the four corner sealing grooves of the hatch door frame 6, and clean it with alcohol and clean white gauze to remove oil stains, aluminum chips, and excess glue; then wipe the shielding seal strip 8 clean and must be fully installed in the sealing groove according to the required length of the design. No interception is allowed. The overlapping width of the galvanized phosphor bronze metal mesh at the seam wrapped around the rubber core is greater than 30mm, and it is closed and sutured with galvanized phosphor bronze metal wire. After the shielding seal strip 8 is installed, the hatch is inspected for opening and closing, and the ridges on the hatch door frame 6 and the door frame 7 must be in full contact with the shielding seal strip 8. The shielding seal strip 8 of the present application adopts a structure with a tin-plated phosphor bronze metal mesh as the outer layer and a rubber core as the inner layer. It has the properties of compression resistance, fatigue resistance, and electrochemical corrosion resistance, thereby improving the electromagnetic shielding effectiveness of the cabin.

[0028] The cabin panel 1 is also provided with a vent, and a vent door 9 for closing the vent can be installed at the vent. Figure 3 As shown, the ventilation opening of the cabin is equipped with a ventilation waveguide 10, which is installed on the inner side of the ventilation opening door 9. In this embodiment, the ventilation waveguide 10 is a honeycomb plate structure. The ventilation waveguide 10 is fixedly connected to the cabin board 1 by mounting screws.

[0029] Optionally, a shielding conductive pad 11 is provided at the mounting screw of the ventilation waveguide 10, and the nail body of the mounting screw passes through the shielding conductive pad 11. Specifically, Figure 3 As shown, the shielding conductive pad 11 extends to the outer surface of the cabin 1 and is fixedly connected to the cabin 1 by installing screws. The shielding conductive pad 11 is also connected to the ventilation waveguide 10 by installing screws, thereby realizing the connection between the ventilation waveguide 10 and the cabin 1 at the vent, reducing the gap at the connection between the ventilation waveguide 10 and the cabin 1, and the nail body of the installing screw passes through the shielding conductive pad 11 to avoid electromagnetic shielding leakage, further improving the electromagnetic shielding effectiveness of the cabin. Preferably, the thickness of the shielding conductive pad 11 is not less than 4 mm. The thickness of the shielding conductive pad 11 refers to the thickness at the thinnest point. A sealing groove can be provided on the outside of the shielding conductive pad 11, and a sealing strip is provided in the sealing groove. The vent door 9 can close the vent and press on the sealing strip to achieve the closure of the vent.

[0030] Optionally, a conductive shielding cloth 12 is applied to the mounting location of the ventilation waveguide 10. Specifically, the portion of the ventilation waveguide 10 connected to the mounting screws is wrapped with the conductive shielding cloth 12. The conductive shielding cloth 12 is applied to the inner and outer surfaces of this portion, as well as the surface adjacent to the deck 1. The conductive shielding cloth 12 is a copper-nickel conductive shielding cloth and can be integrally connected to the conductive shielding cloth on the inner surface of the deck 1. This further enhances the electromagnetic shielding effectiveness of the mounting location of the ventilation waveguide 10.

[0031] There are seams between the cabin panels 1, and electromagnetic shielding leakage is likely to occur at the seams. Figure 4 As shown, each panel 1 of the square cabin is provided with an inner edging 13 at the joints. The inner edging 13 is L-shaped and presses against the joints. A copper or nickel screen 14 is placed between the inner edging 13 and the panel 1, and is arranged on the outside of the inner edging 13. Preferably, the copper or nickel screen 14 is the same length as the inner edging 13, and the number of screens is set to two. The inner edging 13 improves the structural strength of the panel 1 at the joints and is secured with rivets. During installation, the panel 1 skin surface bonded to the inner edging 13 is polished to form a metal body. The polished surface is cleaned with clean white gauze and alcohol. The inner edging 13 is used to press the copper or nickel screen 14 against the inner wall of the panel 1. Drilling is then performed, with the drill bit perpendicular to the panel 1. Drilling chips are removed, the inner edging 13 is riveted, and the exposed copper or nickel screen 14 is cut off with scissors.

[0032] A small door 15 is mounted on the cabin's deck 1, and a door frame 16 is fixed to the deck 1. The small door 15 is mounted within the door frame 16. In this embodiment, the door frame 16 is made of conductive, oxidized aluminum, with a flatness greater than 0.5 mm. It is connected to the deck 1 by crimping and riveting.

[0033] Optional, such as Figure 5 As shown, an adapter plate 18 is installed on the inner side of the small door frame 16 of the cabin. Because the small door frame 16 is relatively narrow and cannot accommodate some equipment, the adapter plate 18 is installed on the small door frame 16 to connect with some equipment. A wire gasket 17 is laid between the adapter plate 18 and the small door frame 16. During installation, the cabin panel 1 skin that contacts the small door frame 16 must be polished to reveal the metal body, and then wire is laid as a gasket and glued to the small door frame 16. The joints of the wire gasket 17 must be tightly fitted. When installing, the adapter plate 18 should first be treated with conductive oxidation and then screwed to ensure a tight joint after installation. All rivets and screws used must be coated with conductive glue before use. The adapter plate 18 is connected to the small door frame 16 via rivets or screws, and the rivet or screw body passes through the adapter plate 18, wire gasket 17, and adapter plate 18 in sequence.

[0034] The shelter in this application has been treated to effectively enhance electromagnetic shielding effectiveness at seams, openings, and assembly points, providing a low-impedance path for RF currents passing through these locations, maintaining excellent shielding effectiveness and effectively improving the overall shielding effectiveness of the shelter. Furthermore, the treatment is convenient and easy to operate, and each location can be treated individually.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0036] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] In the description of this specification, the description with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in an appropriate manner in any at least one embodiment or example. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and simple improvements made to the essential contents of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A shelter with high electromagnetic shielding effectiveness, characterized in that: Conductive shielding cloth is pasted on the inner surface of each cabin panel (1) of the cabin; a metal liner (3) is provided between the window (2) and the cabin panel (1), and the metal liner (3) includes silver-plated brass (31) and monel alloy woven wire mesh (32) stacked from the cabin panel (1) to the window (2); a sealing groove is provided on the cabin door frame (6) and the door frame (7), and a shielding sealing strip (8) is filled in the sealing groove, and the shielding sealing strip (8) includes a rubber core and a tin-plated phosphor bronze metal wire mesh wrapped around the rubber core.

2. The high electromagnetic shielding effectiveness shelter according to claim 1, characterized in that: The ventilation opening of the cabin is equipped with a ventilation waveguide (10).

3. The high electromagnetic shielding effectiveness shelter according to claim 2, characterized in that: A shielding conductive pad (11) is provided at the mounting screw of the ventilation waveguide (10), and the nail body of the mounting screw passes through the shielding conductive pad (11).

4. The high electromagnetic shielding effectiveness shelter according to claim 3, characterized in that: The thickness of the shielding conductive pad (11) is not less than 4 mm.

5. The shelter with high electromagnetic shielding effectiveness according to claim 3, characterized in that: The installation and fixing position of the ventilation waveguide (10) is wrapped and applied with a conductive shielding cloth (12).

6. The high electromagnetic shielding effectiveness shelter according to claim 1, characterized in that: An inner edging (13) is provided at the joint position of each cabin board (1) of the square cabin, and a copper screen or a nickel screen (14) is padded between the inner edging (13) and the cabin board (1).

7. The high electromagnetic shielding effectiveness shelter according to claim 6, characterized in that: The copper screen or nickel screen (14) has the same length as the inner edge (13).

8. The shelter with high electromagnetic shielding effectiveness according to claim 1, characterized in that: An adapter plate (18) is provided on the inner side of the small door frame (16) of the cabin, and a metal wire pad (17) is laid between the adapter plate (18) and the small door frame (16).

9. The shelter with high electromagnetic shielding effectiveness according to claim 8, characterized in that: The small door frame (16) is an aluminum profile door frame that has been subjected to conductive oxidation treatment.

10. The shelter with high electromagnetic shielding effectiveness according to claim 1, characterized in that: The hatch door frame (6) is an aluminum profile door frame that has been subjected to conductive oxidation treatment.

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