Shielding device

Abstract

The utility model relates to the technical field of shielding equipment, and provides a shielding device, which comprises a shielding box body and a cover plate assembly, the outer side wall of the shielding box body is provided with a first accommodating cavity and a second accommodating cavity positioned in the first accommodating cavity, the cover plate assembly comprises a cover plate main body and a circuit board arranged on the cover plate, and the circuit board is provided with a plugging end. And the plugging end is arranged in the second accommodating cavity when the first accommodating cavity is plugged by the cover plate. According to the shielding device provided by the utility model, the second accommodating cavity is arranged in the first accommodating cavity of the shielding box body, so that the plugging end of the circuit board of the cover plate assembly is accommodated in the second accommodating cavity, double shielding isolation is carried out on the plugging end, and the shielding effect is better.

Description

Technical Field

[0001] This utility model relates to the field of shielding equipment technology, and in particular provides a shielding device. Background Technology

[0002] A shielding device is a device used to prevent electromagnetic interference (EMI), radio frequency interference (RFI), or other unwanted external signals from affecting the normal operation of electronic equipment. The main function of a shielding device is to protect sensitive equipment from interference or radiation by isolating, reflecting, or absorbing unwanted electromagnetic waves. It is widely used in electronics, power, communications, aerospace, and medical fields.

[0003] However, existing shielding devices are ineffective and fail to meet shielding requirements. Utility Model Content

[0004] The purpose of this invention is to provide a shielding device that addresses the problem of poor shielding performance in existing shielding devices.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This application provides a shielding device including a shielding box and a cover plate assembly. The outer wall of the shielding box has a first receiving cavity and a second receiving cavity located within the first receiving cavity. The cover plate assembly includes a cover plate body and a circuit board disposed on the cover plate body. The circuit board has a plug-in end, which is placed in the second receiving cavity when the cover plate is sealed in the first receiving cavity.

[0007] The beneficial effects of this utility model are as follows: The shielding device provided by this utility model has a second receiving cavity in the first receiving cavity of the shielding box. In this way, the plug-in end of the circuit board of the cover plate assembly is housed in the second receiving cavity, thereby providing double shielding and isolation for the plug-in end, resulting in a better shielding effect.

[0008] In some embodiments, the first receiving cavity is provided with a plurality of protruding ribs, and each of the protruding ribs and the bottom wall of the first receiving cavity encloses the second receiving cavity.

[0009] By adopting the above technical solution, the second receiving cavity is formed by multiple protruding ribs protruding from the bottom wall of the first receiving cavity. Therefore, the end of each rib away from the bottom wall of the first receiving cavity can abut against the cover plate body to form a sealed space.

[0010] In some embodiments, the inner wall of the first receiving cavity is provided with a retaining structure, the retaining structure enclosing at least one of the protruding ribs.

[0011] By adopting the above technical solution, the enclosure structure can further enclose the plug-in end, thereby improving the shielding and isolation effect.

[0012] In some embodiments, the number of ribs is four, and each rib encloses a square second receiving cavity. The enclosure structure includes four side panels, each side panel corresponding to each rib, and enclosing to form a closed structure.

[0013] By adopting the above technical solution, the ribs are enclosed to form a square structure, and its outline matches the outline of the plug end. Similarly, the edges are also enclosed to form a square structure, that is, the plug end is triple shielded and isolated, and the shielding effect is further improved.

[0014] In some embodiments, the shielding box is provided with a positioning structure, and the cover plate body is provided with a positioning adapter structure that is adapted to the positioning structure.

[0015] By adopting the above technical solution, the positioning structure and the positioning adapter structure are matched to improve the accuracy of the cover plate body covering the opening end of the first receiving cavity, and at the same time, improve the alignment of the insertion end and the second receiving cavity.

[0016] In some embodiments, the positioning structure includes a positioning post disposed on the shielding box, and the positioning adapter structure includes a positioning hole formed on the cover plate body.

[0017] By adopting the above technical solution, specifically, by inserting positioning pins into positioning holes, the cover plate body can be accurately placed on the shielding box.

[0018] In some embodiments, the shielding box has a plurality of first mounting holes, and the cover plate body has a second mounting hole corresponding to each of the first mounting holes.

[0019] By adopting the above technical solution, fasteners such as screws and pins are sequentially inserted into the second mounting hole and the first mounting hole to fix the cover plate body to the outer wall of the shielding box. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 Exploded view of the shielding device provided in the embodiment of this utility model;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 An exploded view of the cover plate assembly of the shielding device provided in an embodiment of this utility model.

[0024] The following are the labeling elements in the figure:

[0025] 10. Shielding enclosure; 10a. First receiving cavity; 10b. Second receiving cavity; 11. Rib; 12. Positioning structure; 13. First mounting hole;

[0026] 20. Cover plate assembly; 21. Cover plate body; 22. Circuit board; 22a. Plug-in terminal; 23. Positioning adapter structure; 24. Second mounting hole. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Please refer to Figures 1 to 3 The shielding device provided in this application includes a shielding box 10 and a cover plate assembly 20. The outer wall of the shielding box 10 has a first receiving cavity 10a and a second receiving cavity 10b located in the first receiving cavity 10a. The cover plate assembly 20 includes a cover plate body 21 and a circuit board 22 disposed on the cover plate body 21. The circuit board 22 has a plug-in end 22a. When the cover plate is sealed in the first receiving cavity 10a, the plug-in end 22a is placed in the second receiving cavity 10b.

[0032] Understandably, the shielding housing 10 is the main body of the shielding device, used to support and carry other components such as the cover plate assembly 20. Here, the first receiving cavity 10a can be formed by the inward indentation of the outer side wall of the shielding housing 10, or it can be formed by providing a rib structure on the outer side wall of the shielding housing 10. Similarly, the second receiving cavity 10b can be formed by the inward indentation of the outer side wall of the shielding housing 10, or it can be formed by providing a rib structure on the outer side wall of the shielding housing 10. At the same time, the forming method of the first receiving cavity 10a and the second receiving cavity 10b should be the same, so as to form two non-communicating sealed spaces when the cover plate body 21 is placed on the first receiving cavity 10a, so as to achieve double shielding and isolation of the plug-in end 22a.

[0033] The shielding device provided by this utility model has a second receiving cavity 10b in the first receiving cavity 10a of the shielding box 10. In this way, the plug end 22a of the circuit board 22 of the cover plate assembly 20 is housed in the second receiving cavity 10b, thereby providing double shielding and isolation for the plug end 22a, resulting in a better shielding effect.

[0034] Please refer to Figure 2 In some embodiments, a plurality of ribs 11 are provided in the first receiving cavity 10a, and each rib 11 and the bottom wall of the first receiving cavity 10a enclose a second receiving cavity 10b.

[0035] Understandably, the second receiving cavity 10b is formed by a plurality of protruding ribs 11 protruding from the bottom wall of the first receiving cavity. Therefore, the end of each rib 11 away from the bottom wall of the first receiving cavity can abut against the cover plate body 21 to form a sealed space.

[0036] Here, the number of ribs 11 is not limited, but is determined by the ability to enclose and form a closed space. Specifically, when there is only one rib 11, the shape of the second receiving cavity 10b is circular or approximately circular.

[0037] In other embodiments, a plurality of ribs 11 may be provided on the cover plate body 21. Similarly, each rib 11 encloses and forms a closed space. When the cover plate body 21 is placed on the opening end of the first receiving cavity 10a, each rib 11 can also enclose and form a sealed space with the bottom wall of the first receiving cavity 10a.

[0038] In some embodiments, the inner wall of the first receiving cavity 10a is provided with a retaining structure (not shown in the figure), and the retaining structure retains at least one protruding rib 11.

[0039] Understandably, the function of the enclosure structure is to further enhance the sealing and isolation effect on the insertion end 22a. The structural form of the enclosure structure is not limited. For example, the enclosure structure may consist of only one baffle, which surrounds the second receiving cavity 10b, presenting an open enclosure. Alternatively, the enclosure structure may have multiple baffles, each forming a closed structure. Furthermore, the enclosure structure may also be multi-layered. For example, a single-layer enclosure structure may be provided only around the second receiving cavity 10b, or multiple-layer enclosure structures may be provided around the second receiving cavity 10b.

[0040] In this way, the enclosure structure can further enclose the plug-in end 22a, thereby improving the shielding and isolation effect.

[0041] In some embodiments, there are four ribs 11, and each rib 11 encloses a square second receiving cavity 10b. The enclosure structure includes four side panels (not shown in the figure), each side panel corresponds to each rib 11, and they enclose to form a closed structure.

[0042] Thus, the ribs 11 enclose a square structure, the outline of which matches the outline of the plug end 22a. Similarly, the edges also enclose a square structure, that is, the plug end 22a is triple shielded and isolated, and the shielding effect is further improved.

[0043] Please refer to Figure 2 and Figure 3 In some embodiments, the shielding box 10 is provided with a positioning structure 12, and the cover plate body 21 is provided with a positioning adapter structure 23 that is adapted to the positioning structure 12.

[0044] Understandably, the positioning structure 12 can be a protrusion formed on the shielding box 10, and the positioning adapter structure 23 can be a recess formed on the cover plate body 21, using the protrusion and the recess to fit together to meet the requirements of rapid positioning; or, the positioning structure 12 can be a recess formed on the shielding box 10, and the positioning adapter structure 23 can be a protrusion formed on the cover plate body 21.

[0045] Thus, the positioning structure 12 and the positioning adapter structure 23 are adapted to improve the accuracy of the cover body 21 covering the opening end of the first receiving cavity 10a, and at the same time, improve the alignment of the insertion end 22a and the second receiving cavity 10b.

[0046] Please refer to Figure 2 and Figure 3 In some embodiments, the positioning structure 12 includes a positioning post disposed on the shielding box 10, and the positioning adapter structure 23 includes a positioning hole opened on the cover plate body 21.

[0047] Understandably, the positioning pins are inserted into the positioning holes to ensure that the cover plate body 21 is accurately placed on the shielding box 10.

[0048] Of course, in other embodiments, the shielding box 10 can be provided with positioning posts or positioning holes, and the cover plate body 21 can also be provided with similar positioning holes and positioning posts.

[0049] Please refer to Figure 2 and Figure 3 In some embodiments, the shielding box 10 has a plurality of first mounting holes 23, and the cover plate body 21 has a second mounting hole 24 corresponding to each of the first mounting holes 23.

[0050] Understandably, fasteners such as screws and pins are sequentially inserted into the second mounting hole 24 and the first mounting hole 23 to fix the cover plate body 21 to the outer wall of the shielding box 10.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shielding device, characterized by: The shielding box comprises an outer wall with a first accommodating cavity and a second accommodating cavity in the first accommodating cavity, and a cover plate assembly comprising a cover plate body and a circuit board on the cover plate body, the circuit board having a plug-in end placed in the second accommodating cavity when the cover plate is closed in the first accommodating cavity.

2. The shielding device of claim 1, wherein: A plurality of ribs are arranged in the first accommodating cavity, each rib and the bottom wall of the first accommodating cavity forming the second accommodating cavity.

3. The shielding device of claim 2, wherein: The inner wall of the first accommodating cavity is provided with a surrounding structure surrounding at least one rib.

4. The shielding device of claim 3, wherein: The number of ribs is four, each rib surrounding the second accommodating cavity in a square shape, and the surrounding structure comprising four edges corresponding to each rib and forming a closed structure.

5. The shielding device according to any one of claims 1 to 4, characterized in that: The shielding box is provided with a positioning structure, and the cover plate body is provided with a positioning adaptation structure corresponding to the positioning structure.

6. The shielding device of claim 5, wherein: The positioning structure comprises a positioning column on the shielding box, and the positioning adaptation structure comprises a positioning hole on the cover plate body.

7. The shielding device of claim 1, wherein: A plurality of first mounting holes are arranged on the shielding box, and a second mounting hole corresponding to each first mounting hole is arranged on the cover plate body.

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