A shelter with shielding properties

Abstract

The utility model discloses a square cabin with shielding performance relates to square cabin structure technical field, and the cabin body is formed by the assembly of multiple cabin boards, and the inner side wall of cabin board is fixed with the inner shielding layer for electromagnetic shielding, and the material of inner shielding layer is steel sheet, the plate joint of inner shielding layer is filled with first conductive sealant, the corner of inner shielding layer is provided with the pressing plate, and the material of pressing plate is also steel sheet, and the contact surface of pressing plate and inner shielding layer is equipped with second conductive sealant, and is connected with cabin board through the connecting piece through inner shielding layer. The square cabin provided by the utility model has high integrity, continuity and shielding efficiency, and can effectively guarantee the stable operation of the generator set control system in the complex electromagnetic environment.

Description

Technical Field

[0001] This utility model relates to the field of modular shelter technology, and more specifically, to a modular shelter with shielding performance. Background Technology

[0002] Mobile power stations are typically used in the field, disaster areas, and other similar locations. They are equipped with an electrical room for the electrical control of the generator sets within the power station.

[0003] In actual use, it was found that when the mobile power station is located in a place with magnetic field interference, it will affect the controller's control of the generator set. The generator set may lose its voltage regulation and speed regulation functions. In some cases, the controller controls the engine's fuel signal. If the signal is lost, the engine will stop injecting fuel, causing the generator set to stop working and the power supply for disaster relief to be interrupted.

[0004] To address the aforementioned issues, the structure of modular power stations is shielded according to usage requirements. Currently, aluminum plates, i.e., modular skin, are widely used. While aluminum skin can provide some shielding for the cabin, magnetic leakage is prone to occur at the joints between aluminum plates, rivet holes, and cabin openings, reducing the cabin's shielding performance and failing to create a good cage effect. Therefore, it cannot be used in applications requiring high shielding performance. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a shelter with shielding performance to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A shielded container includes a body assembled from multiple panels. An inner shielding layer for electromagnetic shielding is fixedly installed on the inner wall of each panel. The inner shielding layer is made of steel plate. The joints of the inner shielding layer are filled with a first conductive sealant. A pressure plate, also made of steel plate, is installed at the corner of the inner shielding layer. The contact surface between the pressure plate and the inner shielding layer is covered with a second conductive sealant, and the pressure plate is connected to the panel through the inner shielding layer via a connector.

[0008] Furthermore, the inner shielding layer is fixedly connected to the inner wall of the compartment plate by a first conductive sealant and / or connector.

[0009] Furthermore, corner fittings are provided at the external corners of the cabin.

[0010] Furthermore, waveguide windows are installed at the openings on the cabin for ventilation or wiring.

[0011] Furthermore, the thickness of the inner shielding layer is 0.5 mm to 2.0 mm.

[0012] Furthermore, the pressure plate is L-shaped, and the connecting member is a rivet; the pressure plate is connected to the cabin plate through the inner shielding layer by the rivet.

[0013] Furthermore, the cabin panel includes a skeleton, which is welded to form a frame. The frame is filled with sound-absorbing cotton and / or thermal insulation cotton. The outer side of the frame is covered with an outer skin, and the inner side is covered with an inner skin.

[0014] The beneficial effects of this utility model are as follows:

[0015] The shielded container provided by this utility model achieves high electromagnetic shielding by incorporating an inner shielding layer of steel plate on the inner side of the container panels. This not only enhances the electromagnetic shielding effect but also increases the structural strength of the container. Furthermore, by filling the joints of the plates with a first conductive sealant to connect multiple dispersed steel plates into a complete shielding layer, numerous electromagnetic leakage points caused by splicing are avoided, thus improving the overall shielding effect. Additionally, by setting pressure plates and fixing them with connectors, corners are effectively secured and electromagnetically shielded, preventing electromagnetic leakage points from forming at corners. Therefore, the container provided by this utility model possesses high integrity, high continuity, and high shielding efficiency, effectively ensuring the stable operation of the internal generator control system in complex electromagnetic environments. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of a partial internal structure of the modular shelter of this utility model.

[0018] Figure 2 This is a partial structural diagram of the external corner of the modular shelter of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Cabin plate; 11. Frame; 12. Sound-absorbing cotton; 13. Thermal insulation cotton; 14. Outer skin; 15. Inner skin; 2. Inner shielding layer; 3. First conductive sealant; 4. Pressure plate; 5. Second conductive sealant; 6. Connector; 7. Corner piece. Detailed Implementation

[0021] The structure provided by this utility model will be explained and described in detail below with reference to the accompanying drawings.

[0022] refer to Figure 1 and Figure 2 This embodiment specifically discloses a container with shielding performance, including a container body assembled from multiple compartment panels 1. The compartment panel 1 includes a skeleton 11, which is welded to form a frame. The frame is filled with sound-absorbing cotton 12 and / or thermal insulation cotton 13. The outer side of the frame is covered with an outer skin 14, and the inner side is covered with an inner skin 15. In the illustrated embodiment, the frame can be filled with both sound-absorbing cotton 12 and thermal insulation cotton 13 to achieve the effects of thermal insulation and sound insulation.

[0023] An inner shielding layer 2 for electromagnetic shielding is fixedly installed on the inner wall of the compartment 1. The inner shielding layer 2 is made of steel plate. The joints of the inner shielding layer 2 are filled with a first conductive sealant 3. A pressure plate 4 is installed at the corner of the inner shielding layer 2. The pressure plate 4 is also made of steel plate. The contact surface between the pressure plate 4 and the inner shielding layer 2 is provided with a second conductive sealant 5. The pressure plate 4 is connected to the compartment 1 through the inner shielding layer 2 via a connector 6.

[0024] In this embodiment, an inner shielding layer 2 made of steel plate is provided on the inner side of the cabin plate 1. The thickness of the inner shielding layer 2 is set to 0.5mm to 2.0mm. Specifically, it can be made of cold-rolled steel plate (with high magnetic permeability), galvanized steel plate (rust-proof and magnetic), or magnetic stainless steel plate (rust-proof and magnetic). On the one hand, it can have a high electromagnetic shielding effect (effectively shielding the magnetic field interference generated by field substations or large equipment), and on the other hand, it can further increase the structural strength of the cabin. In addition, by filling the joints of the inner shielding layer 2 with the first conductive sealant 3, multiple dispersed steel plates are connected to form a complete shielding layer, which can avoid the generation of a large number of electromagnetic leakage points due to splicing of plates, thereby improving the overall shielding effect. Furthermore, by setting the pressure plate 4 and fixing it with the connector 6, it can provide good fixation and electromagnetic shielding effect at the corners, avoiding the generation of electromagnetic leakage points at the corners of the inner shielding layer 2. That is, the cabin provided in this embodiment has high integrity, high continuity, and high shielding efficiency, which can effectively ensure the stable operation of the internal generator control system in complex electromagnetic environments.

[0025] Continue to refer to Figure 1 As shown, the inner shielding layer 2 is fixedly connected to the inner wall of the compartment plate 1 by the first conductive sealant 3 and / or the connector 6; preferably, it is fixedly connected to the inner wall of the compartment plate 1 by both the first conductive sealant 3 and the connector 6; wherein, the connector 6 can be a rivet or screw, etc.; this combination of adhesive bonding and riveting ensures a firm connection between the inner shielding layer 2 and the compartment plate 1, and the first conductive sealant 3 fills the gap between the connector 6 and the hole wall, ensuring the continuity of the inner shielding layer.

[0026] In this embodiment, both the first conductive sealant 3 and the second conductive sealant 5 can be formed using 4512LV adhesive.

[0027] In some embodiments, combined with Figure 2 As shown, corner fittings 7 are installed at the external corners of the cabin to enhance the overall structural rigidity of the cabin.

[0028] In some embodiments, waveguide windows (not shown) are installed at the openings on the cabin for ventilation or wiring, which ensure internal shielding performance when the waveguide windows are closed.

[0029] Continue to refer to Figure 1 and Figure 2 The pressure plate 4 is L-shaped, and the connector 6 is a rivet. The pressure plate 4 is connected to the cabin plate 1 through the inner shielding layer 2 by the rivet. The L-shaped pressure plate 4 effectively connects the inner shielding layers 2 in two adjacent directions into a whole, forming a continuous magnetic path, which significantly enhances the shielding effectiveness at the corner and can eliminate the weak point of "magnetic leakage".

[0030] Understandably, the shielded cabin in this embodiment is also equipped with a grounding component (not shown in the figure). The inner shielding layer 2 and the waveguide window are both connected to the grounding component to achieve grounding, thereby dissipating induced current and ensuring shielding effectiveness.

[0031] The manufacturing process is described below:

[0032] a) One-time pressing: The frame of the container is welded into the skeleton 11, the frame is filled with sound-absorbing material and / or heat-insulating material, glue is applied to both sides and the inner skin 15 and outer skin 14 are covered, and the container is pressed to form the container.

[0033] b) Degreasing: Wipe the inner skin of each panel 1 in the electrical room clean with acetone. Acetone can effectively remove grease and ensure that the panel 1 is clean.

[0034] c) Roughening treatment: Roughen the cleaned inner skin 15 to better grasp the adhesive and increase the adhesive strength;

[0035] d) Installation of inner shielding layer, i.e. steel plate: The steel plate is cut according to the internal dimensions of the electrical room. If the size is not large enough to cover one side of the inner skin, splicing is allowed. Apply adhesive evenly to the bonding surface, i.e., apply the first conductive sealant 3.

[0036] e) Inner shielding layer, i.e., steel plate fixation: Steel plates may shift during subsequent pressing if they are only glued together. Therefore, it is necessary to fix the steel plate to the compartment plate 1. Use connector 6 rivets to fix the four corners of the steel plate. The rivets can be dipped in the first conductive sealant in advance to ensure that the rivet holes and the steel plate form an effective seal and prevent magnetic leakage from the rivet holes.

[0037] f) Secondary pressing: The inner shielding layer 2 of the compartment plate 1 is heated and pressed into shape by a laminator to solidify the colloid.

[0038] g) Joint treatment: During the heating process, the colloid will expand and overflow from the joint of the steel plate, which will cause magnetic leakage. Therefore, it is necessary to remove the cured colloid from the joint, apply the first conductive sealant along the joint, and let it dry naturally.

[0039] h) Corner treatment: After the compartment is assembled, electromagnetic shielding conductive tape is pasted or a second conductive sealant is applied to the joint between two adjacent steel plates at the corner, and then allowed to dry naturally so that the spliced ​​inner shielding layer 2 forms a complete conductor; the pressure plate 4 is installed at the corner using connector 2, i.e., rivets. Before installation, the second conductive sealant is applied to the contact surface between the pressure plate and the inner shielding layer 2, and the rivets are dipped in conductive sealant to further prevent magnetic leakage.

[0040] i) Transition treatment: A first conductive sealant needs to be applied to the transition surface between the pressure plate and the compartment plate 1 for a smooth transition.

[0041] j) External treatment: Corner fittings, bolts and external rivets located outside the electrical room must be pre-applied with conductive sealant and riveted in advance.

[0042] Both the first and second conductive sealants mentioned above can preferably be made with 4512LV adhesive.

[0043] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] In the description of this specification, the references to terms such as "this embodiment," "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any at least one embodiment or example. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Furthermore, the terms "first" and "second conductive sealant" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second conductive sealant" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and simple improvements made on the substantive content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shelter with shielding properties, characterized in that, The device includes a cabin assembled from multiple compartment panels (1). An inner shielding layer (2) for electromagnetic shielding is fixedly installed on the inner wall of each compartment panel (1). The inner shielding layer (2) is made of steel plate. The joints of the inner shielding layer (2) are filled with a first conductive sealant (3). A pressure plate (4) is installed at the corner of the inner shielding layer (2). The pressure plate (4) is also made of steel plate. The contact surface between the pressure plate (4) and the inner shielding layer (2) is provided with a second conductive sealant (5). The pressure plate (4) is connected to the compartment panel (1) through the inner shielding layer (2) via a connector (6).

2. The shielded shelter according to claim 1, characterized in that, The inner shielding layer (2) is fixedly connected to the inner wall of the compartment plate (1) by a first conductive sealant (3) and / or a connector (6).

3. The shielded shelter according to claim 1, characterized in that, Corner fittings (7) are provided at the external corners of the cabin.

4. The shielded shelter according to claim 1, characterized in that, Waveguide windows are installed at the openings on the cabin that are used for ventilation or wiring.

5. The shielded shelter according to claim 1, characterized in that, The thickness of the inner shielding layer (2) is 0.5 mm to 2.0 mm.

6. The shielded shelter according to claim 2, characterized in that, The pressure plate (4) is L-shaped, and the connector (6) is a rivet; the pressure plate (4) is connected to the cabin plate (1) by the rivet passing through the inner shielding layer (2).

7. The shielded shelter according to claim 1, characterized in that, The cabin panel (1) includes a frame (11) welded together to form a frame, which is filled with sound-absorbing cotton (12) and / or thermal insulation cotton (13). The outer side of the frame is covered with an outer skin (14), and the inner side is covered with an inner skin (15).

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