Electromagnetic shielding device

Abstract

The utility model discloses an electromagnetic shielding device relates to shielding technical field, and multiple first shielding piece surrounds and forms shielding frame, and shielding frame can be set in the outside of electric component, and every two opposite and spaced apart first shielding piece constitutes a group of shielding piece group, and the interval distance between two first shielding pieces in every shielding piece group is adjustable. Therefore, by making multiple first shielding piece surround and form shielding frame and set in the outside of electric component, can effectively improve the shielding performance of electric component, and it is convenient for research and development personnel to check whether it is electromagnetic wave leakage or other reasons that lead to the failure of authentication, help research and development personnel to quickly eliminate problems to complete authentication, and, by making the interval distance between two first shielding pieces in every shielding piece group adjustable, can improve the adaptability of electromagnetic shielding device.

Description

Technical Field

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

[0002] Electronic components such as chips and modules generate electromagnetic waves when they are working. These electromagnetic waves can interfere with the normal operation of other circuits inside the device, and may also be radiated outwards, interfering with other devices, or even causing radiation to the human body.

[0003] In existing technologies, electrical components include shielding covers that cooperate with shielding frames soldered onto circuit boards to shield electromagnetic waves generated by the electrical components. During product certification, if certification fails, it is necessary to determine whether the failure is due to electromagnetic wave leakage or other reasons. However, currently there is no reasonable solution to determine whether the certification failure is due to electromagnetic wave leakage or other reasons, thus hindering R&D from quickly eliminating the problem and completing certification. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide an electromagnetic shielding device that facilitates researchers in troubleshooting whether certification failure is due to electromagnetic wave leakage or other reasons, thus helping researchers quickly resolve problems and complete certification.

[0005] The electromagnetic shielding device according to this utility model includes: a plurality of first shielding components, the plurality of first shielding components surrounding to form a shielding frame, the shielding frame being able to be fitted onto the outside of an electrical component, each pair of opposite and spaced-apart first shielding components forming a shielding component group, and the spacing between the two first shielding components in each shielding component group being adjustable.

[0006] According to the present invention, the electromagnetic shielding device can effectively improve the shielding performance of electrical components by having multiple first shielding components surround and form a shielding frame and sleeve it on the outside of electrical components. This makes it easier for R&D personnel to check whether the certification failure is due to electromagnetic wave leakage or other reasons, and helps R&D personnel to quickly eliminate problems and complete the certification. Furthermore, by making the interval between the two first shielding components in each shielding component group adjustable, the adaptability of the electromagnetic shielding device can be improved.

[0007] In some examples of this utility model, the first shielding component includes: a first flexible shielding component and a metal shielding component, wherein the first flexible shielding component is located inside the corresponding metal shielding component.

[0008] In some examples of this utility model, the first shielding component includes a metal shielding component.

[0009] In some examples of this utility model, the electromagnetic shielding device further includes: an adjustment mechanism, the number of which is the same as the number of shielding components and they correspond one-to-one. The adjustment mechanism includes: a first adjustment component, the first adjustment component passing through two first shielding components corresponding to the shielding component group, and the first shielding component being movable relative to the first adjustment component along the extension direction of the first adjustment component.

[0010] In some examples of this utility model, the adjustment mechanism further includes: a second adjustment member, which is movably disposed on the first adjustment member along the extension direction of the first adjustment member, and the second adjustment member is provided on the side of each first shield member away from the other first shield member, and the second adjustment member can push the corresponding first shield member to move closer to the other first shield member.

[0011] In some examples of this utility model, the first adjusting member has an external thread, and the second adjusting member is sleeved on the first adjusting member and has an internal thread that mates with the external thread.

[0012] In some examples of this utility model, the first adjusting member has a plurality of first snap-fit ​​portions arranged at intervals along the extending direction of the first adjusting member, and the second adjusting member has a second snap-fit ​​portion that can cooperate with the first snap-fit ​​portion. One of the first snap-fit ​​portion and the second snap-fit ​​portion is a snap-fit ​​protrusion, and the other of the first snap-fit ​​portion and the second snap-fit ​​portion is a snap-fit ​​hole or a snap-fit ​​groove.

[0013] In some examples of this utility model, the first flexible shielding component has a variety of conductive fillers, and the various conductive fillers are arranged in layers or mixed together.

[0014] In some examples of this utility model, the electromagnetic shielding device further includes a second shielding member, which is capable of covering one side of the electrical component along the thickness direction of the electromagnetic shielding device.

[0015] In some examples of this utility model, the second shielding member can cover the through hole of the shielding cover of the electrical component; And / or, the second shielding element includes: a second flexible shielding element.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a top view of the electromagnetic shielding device covering an electrical component according to an embodiment of the present invention.

[0018] Figure label: Electromagnetic shielding device 100; electrical components 99; shielding cover 98; First shielding component 10; shielding component group 11; shielding frame 12; first flexible shielding component 13; metal shielding component 14; Second shielding component 20; Second flexible shielding component 21; Adjustment mechanism 30; first adjustment element 31; second adjustment element 32. Detailed Implementation

[0019] 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] The following is for reference. Figure 1 The electromagnetic shielding device 100 according to an embodiment of the present invention is described.

[0021] like Figure 1 As shown, the electromagnetic shielding device 100 according to an embodiment of the present invention includes: a plurality of first shielding members 10.

[0022] Multiple first shielding elements 10 surround to form a shielding frame 12, which can be fitted onto the outside of the electrical component 99. Every two opposing and spaced-apart first shielding elements 10 constitute a shielding element group 11, and the spacing between the two first shielding elements 10 in each shielding element group 11 is adjustable.

[0023] The number of first shielding elements 10 can be multiple, including but not limited to four or six. Multiple first shielding elements 10 surround to form a shielding frame 12. In some embodiments of this application, four first shielding elements 10 surround to form the shielding frame 12. The shielding frame 12 can be fitted onto the outside of the electrical component 99. The shape of the first shielding elements 10 can be, but is not limited to, rectangular. In some embodiments of this application, four rectangular first shielding elements 10 are connected end-to-end to surround the rectangular shielding frame 12.

[0024] Each pair of opposing and spaced-apart first shielding elements 10 constitutes a shielding element group 11. As some embodiments of this application, the number of first shielding elements 10 is four, and two first shielding elements 10 are constructed as a shielding element group 11. The two opposing first shielding elements 10 in each shielding element group 11 have an adjustable spacing, that is, the distance between the two spaced-apart first shielding elements 10 in the shielding element group 11 can be adjusted so that the electromagnetic shielding device 100 can be adapted to electrical components 99 of different sizes.

[0025] As some embodiments of this application, the electrical component 99 may include: a circuit board, a shielding cover 98, and a shielding frame. The shielding frame is disposed on the circuit board, and the shielding cover 98 is disposed in cooperation with the shielding frame and covers the circuit board. The tightness of the cooperation between the shielding cover 98 and the shielding frame will directly affect the shielding effect.

[0026] It should be noted that due to manufacturing errors and structural specialties of the shielding cover 98, there are gaps at all four corners of the shielding cover 98, which can easily lead to electromagnetic wave leakage.

[0027] As some embodiments of this application, the electromagnetic shielding device 100 of this application can be directly covered on the outside of the shielding cover 98 of the electrical component 99, directly electromagnetically shielding the electrical component 99, directly improving the shielding performance, and effectively reducing electromagnetic waves leaking to the outside of the electrical component 99. This makes it easier for R&D personnel to investigate whether the certification failure is due to electromagnetic wave leakage or other reasons (this can be understood as excluding the variable of electromagnetic wave leakage), which helps R&D personnel to quickly eliminate problems and complete the certification.

[0028] It should be noted that the shielding cover 98 and the shielding frame are generally snap-fitted together. Disassembling or assembling the shielding cover 98 may cause plastic deformation of the shielding cover 98, resulting in poor tightness between the shielding cover 98 and the shielding frame.

[0029] As some embodiments of this application, the electromagnetic shielding device 100 of this application can be installed on the outside of the shielding cover 98 of the electrical component 99. By changing the spacing between the two first shielding members 10 in each set of shielding members 11, the shielding cover 98 can be squeezed to improve the tightness of the fit between the shielding cover 98 and the shielding frame, reduce the gap between the shielding cover 98 and the shielding frame, improve the shielding performance, and effectively reduce the electromagnetic waves leaking to the outside of the electrical component 99. This makes it easier for R&D personnel to check whether the certification failure is due to electromagnetic wave leakage or other reasons (this can be understood as excluding the variable of electromagnetic wave leakage), which helps R&D personnel to quickly eliminate problems and complete the certification.

[0030] It is understandable that if the electromagnetic shielding device 100 proposed in this application still fails to pass certification, it means that the failure to pass certification is not due to electromagnetic wave leakage; if the certification is passed, it means that the failure to pass certification is due to electromagnetic wave leakage.

[0031] As some embodiments of this application, the electromagnetic shielding device 100 of this application has good shielding effect and high versatility. By changing the interval between the two first shielding members 10 in each shielding member group 11, the electromagnetic shielding device 100 can be matched with electrical components 99 of different sizes.

[0032] Therefore, by having multiple first shielding components 10 surround and form a shielding frame 12 and sleeve it on the outside of the electrical component 99, the shielding performance of the electrical component 99 can be effectively improved. This makes it easier for R&D personnel to check whether the certification failure is due to electromagnetic wave leakage or other reasons, which helps R&D personnel to quickly eliminate problems and complete the certification. Furthermore, by making the interval between the two first shielding components 10 in each shielding component group 11 adjustable, the adaptability of the electromagnetic shielding device 100 can be improved.

[0033] In some embodiments of this utility model, such as Figure 1 As shown, the first shielding component 10 includes: a first flexible shielding component 13 and a metal shielding component 14, with the first flexible shielding component 13 located inside the corresponding metal shielding component 14.

[0034] That is, the first shielding member 10 includes a first flexible shielding member 13 and a metal shielding member 14. Multiple first flexible shielding members 13 are arranged to form a flexible frame, and multiple metal shielding members 14 are arranged to form a metal frame. The flexible frame is located inside the metal frame, so that the first flexible shielding member 13 is located inside the corresponding metal shielding member 14.

[0035] As some embodiments of this application, the first flexible shield 13 and the metal shield 14 are connected by adhesive bonding.

[0036] The first flexible shielding component 13 may be, but is not limited to, constructed of conductive rubber, etc. The conductive rubber possesses good conductivity, electromagnetic shielding, and moisture-proof sealing properties. The conductive rubber is composed of an adhesive and conductive fillers. The adhesive may be, but is not limited to, silicone, silicone fluoride, EPDM (Ethylene Propylene Diene Monomer), fluorinated carbon-silicon fluoride, etc. The conductive fillers may be, but are not limited to, pure silver, silver-plated copper, silver-plated aluminum, silver-plated nickel, silver-plated glass, silver-plated lead, or carbon particles, etc. The metal shielding component 14 may be, but is not limited to, silver-plated copper metal sheets, silver-plated aluminum metal sheets, etc.

[0037] By positioning the first flexible shield 13 inside the corresponding metal shield 14, the force on the metal shield 14 can be transmitted to the first flexible shield 13 more evenly, so that the first flexible shield 13 is subjected to uniform force. Furthermore, the first flexible shield 13 can be tightly attached to the electrical component 99 to improve the electromagnetic shielding effect.

[0038] As some embodiments of this application, the first flexible shield 13 and the corresponding metal shield 14 are detachably coupled.

[0039] In some embodiments of this utility model, such as Figure 1 As shown, the first shielding component 10 includes a metal shielding component 14. The metal shielding component 14 is subjected to uniform force. This arrangement facilitates the compression of the shielding cover 98 by the first shielding component 10 to improve the tightness of the fit between the shielding cover 98 and the shielding frame, reduce the gap between the shielding cover 98 and the shielding frame, and improve the shielding performance, thereby facilitating researchers to conduct experiments quickly.

[0040] In some embodiments of this utility model, such as Figure 1 As shown, the electromagnetic shielding device 100 further includes an adjustment mechanism 30. The number of adjustment mechanisms 30 is the same as that of the shielding component group 11 and they correspond one-to-one. The adjustment mechanism 30 includes a first adjustment member 31. The first adjustment member 31 passes through two first shielding components 10 corresponding to the shielding component group 11, and the first shielding component 10 can move relative to the first adjustment member 31 along the extension direction of the first adjustment member 31.

[0041] As some embodiments of this application, the number of first shielding members 10 is four, and two first shielding members 10 are constructed as a shielding member group 11. The number of adjustment mechanisms 30 and shielding member groups 11 are the same and correspond one-to-one.

[0042] As some embodiments of this application, each of the two first shielding members 10 in a shielding member group 11 has a mating hole, and the two mating holes are correspondingly arranged. The first adjusting member 31 can pass through the mating holes of the two first shielding members 10 in the corresponding shielding member group 11 so that the first shielding member 10 can move relative to the first adjusting member 31 along the extension direction of the first adjusting member 31.

[0043] By including an adjustment mechanism 30 in the electromagnetic shielding device 100, the first shielding member 10 can be moved relative to the first adjustment member 31 along its extension direction. This facilitates adjustment of the spacing between the two first shielding members 10 in each shielding member group 11, reducing the difficulty of adjusting the spacing and improving adjustment efficiency. Furthermore, the first adjustment member 31 serves a guiding function, enabling the two first shielding members 10 to move along its extension direction, reducing the probability of displacement of the first shielding members 10, and improving the reliability of the electromagnetic shielding device 100.

[0044] In some embodiments of this utility model, such as Figure 1As shown, the adjustment mechanism 30 further includes a second adjustment member 32, which is movably disposed on the first adjustment member 31 along the extension direction of the first adjustment member 31, and a second adjustment member 32 is provided on the side of each first shield 10 away from the other first shield 10. The second adjustment member 32 can push the corresponding first shield 10 to move closer to the other first shield 10.

[0045] The second adjusting member 32 is disposed on the first adjusting member 31. The second adjusting member 32 can move along the extending direction of the first adjusting member 31. Each first shielding member 10 has a side away from the other first shielding member 10 and a side close to the other first shielding member 10. Along the extending direction of the first adjusting member 31, the side of each first shielding member 10 away from the other first shielding member 10 is provided with the second adjusting member 32. By adjusting the position of the second adjusting member 32 on the first adjusting member 31, the corresponding first shielding member 10 can be pushed to move closer to the other first shielding member 10, so that the interval between the two first shielding members 10 in each shielding member group 11 is adjustable.

[0046] Each first shield 10 is located on the side away from the other first shield 10, that is, each first shield 10 is located on the side away from the corresponding other first shield 10 in the shield group 11.

[0047] By including a second adjusting member 32 in the adjusting mechanism 30, the second adjusting member 32 can push the corresponding first shielding member 10 closer to another first shielding member 10, thereby adjusting the spacing between the two first shielding members 10 in each shielding member group 11. Furthermore, the second adjusting member 32 can apply pressure to the corresponding first shielding member 10 to ensure a tight fit or effective compression between the first shielding member 10 and the shielding cover 98, which improves the reliability and ease of use of the electromagnetic shielding device 100. This arrangement is simple in structure and convenient in adjustment, thus improving the adjustment efficiency of the electromagnetic shielding device 100.

[0048] In some embodiments of this utility model, such as Figure 1 As shown, the first adjusting member 31 has an external thread, and the second adjusting member 32 is sleeved on the first adjusting member 31 and has an internal thread that mates with the external thread.

[0049] That is, the first adjusting member 31 has an external thread and the second adjusting member 32 has an internal thread. The external thread of the first adjusting member 31 and the internal thread of the second adjusting member 32 are engaged so that the second adjusting member 32 is sleeved on the first adjusting member 31 and can move flexibly along the extension direction of the first adjusting member 31.

[0050] This arrangement allows the second adjusting member 32 to move flexibly along the extension direction of the first adjusting member 31, so as to adjust the spacing between the two first shielding members 10 in each shielding member group 11. Furthermore, since the first adjusting member 31 and the second adjusting member 32 are connected by a thread, the position of the second adjusting member 32 can be constrained by the thread, so that the second adjusting member 32 can effectively apply pressure to the corresponding first shielding member 10, thereby improving the reliability of the electromagnetic shielding device 100.

[0051] In some embodiments of the present invention, the first adjusting member 31 is formed with a plurality of first snap-fit ​​portions arranged at intervals along the extending direction of the first adjusting member 31, and the second adjusting member 32 is formed with a second snap-fit ​​portion that can cooperate with the first snap-fit ​​portion. One of the first snap-fit ​​portion and the second snap-fit ​​portion is a snap-fit ​​protrusion, and the other of the first snap-fit ​​portion and the second snap-fit ​​portion is a snap-fit ​​hole or a snap-fit ​​groove.

[0052] That is, the first adjusting member 31 has a plurality of first engaging portions, which are arranged at intervals along the extending direction of the first adjusting member 31, and the second adjusting member 32 has a second engaging portion, which can cooperate with the first engaging portion so that the first adjusting member 31 and the second adjusting member 32 cooperate.

[0053] One of the first and second snap-fit ​​portions is a snap-fit ​​protrusion, and the other of the first and second snap-fit ​​portions is a snap-fit ​​hole or a snap-fit ​​groove. As some embodiments of this application, the first snap-fit ​​portion is a snap-fit ​​protrusion, and the second snap-fit ​​portion is a snap-fit ​​groove. When the second adjusting member 32 is pushed to move along the extending direction of the first adjusting member 31, the snap-fit ​​protrusion undergoes elastic deformation and / or the second adjusting member 32 undergoes elastic deformation, so that the snap-fit ​​groove engages with other snap-fit ​​protrusions to change the position of the second adjusting member 32.

[0054] This arrangement allows the second adjusting member 32 to move flexibly along the extension direction of the first adjusting member 31, so as to adjust the spacing between the two first shielding members 10 in each shielding member group 11. Furthermore, since the first adjusting member 31 and the second adjusting member 32 are engaged, the position of the second adjusting member 32 can be constrained by the engagement structure, so that the second adjusting member 32 can effectively apply pressure to the corresponding first shielding member 10, thereby improving the reliability of the electromagnetic shielding device 100.

[0055] In some embodiments of this utility model, the first flexible shield 13 has a variety of conductive fillers, which are arranged in layers or mixed together.

[0056] The conductive filler may be, but is not limited to, pure silver, silver-plated copper, silver-plated aluminum, silver-plated nickel, silver-plated glass, silver-plated lead, or carbon particles. As some embodiments of this application, the first flexible shield 13 has three types of conductive fillers: pure silver, silver-plated copper, and silver-plated aluminum, which are arranged in three layers.

[0057] As some embodiments of this application, the first flexible shield 13 has three types of conductive fillers: silver-plated aluminum, silver-plated nickel, and silver-plated glass, which are arranged in three layers.

[0058] As some embodiments of this application, the first flexible shield 13 contains three conductive fillers: silver-plated glass, silver-plated lead, and carbon particles, which are mixed together.

[0059] As some embodiments of this application, the same conductive filler can also be arranged in layers, and the content of the same filler gradually increases from one layer to the next.

[0060] This setup reduces interface differences, limits reflectivity, and improves electromagnetic shielding performance. Furthermore, stacking composite material layers containing different conductive fillers enables electromagnetic shielding over a wider frequency range.

[0061] In some embodiments of this utility model, such as Figure 1 As shown, the electromagnetic shielding device 100 further includes a second shielding member 20, which can cover one side of the electrical component 99 along the thickness direction of the electromagnetic shielding device 100.

[0062] That is, the second shielding member 20 is disposed on one side of the electrical component 99 along the thickness direction of the electromagnetic shielding device 100. As some embodiments of this application, the second shielding member 20 is disposed on the upper side of the electrical component 99 along the thickness direction of the electromagnetic shielding device 100.

[0063] By placing the second shielding element 20 along the thickness direction of the electromagnetic shielding device 100 on one side of the electrical component 99, the shielding performance can be improved, effectively reducing electromagnetic waves leaking to the outside of the electrical component 99. This makes it easier for R&D personnel to investigate whether the certification failure is due to electromagnetic wave leakage or other reasons (which can be understood as excluding the variable of electromagnetic wave leakage), and helps R&D personnel to quickly troubleshoot problems and complete the certification.

[0064] In some embodiments of this utility model, such as Figure 1 As shown, the second shield 20 can cover the through hole of the shield 98 of the electrical component 99.

[0065] It is understandable that the electrical component 99 will generate heat when it is working. In order to dissipate the heat inside the electrical component 99 from the shield 98 and prevent the temperature difference between the inside and outside from being too large, a through hole will be opened in the shield 98. By having the second shield 20 cover the through hole of the shield 98 of the electrical component 99, the shielding performance can be improved and the electromagnetic waves leaking to the outside of the electrical component 99 can be effectively reduced.

[0066] In some embodiments of this utility model, the second shielding member 20 includes: a second flexible shielding member 21. The second flexible shielding member 21 may be constructed as conductive rubber, etc. The conductive rubber has the characteristics of good conductivity, electromagnetic shielding, and moisture-proof sealing. The conductive rubber is composed of an adhesive and a conductive filler. The adhesive may be, but is not limited to, silicone, silicone fluoride, EPDM (Ethylene Propylene Diene Monomer), fluoride-silicon fluoride, etc. The conductive filler may be, but is not limited to, pure silver, silver-plated copper, silver-plated aluminum, silver-plated nickel, silver-plated glass, silver-plated lead, or carbon particles, etc.

[0067] By including the second flexible shield 21 in the second shield 20, the second shield 20 can be tightly sealed to block the through hole 97, thereby improving the electromagnetic shielding effect.

[0068] As some embodiments of this application, the conductive filler of the second flexible shield 21 can be made of a metal with a high density, so that the second shield 20 has a higher weight, thereby making the second shield 20 more tightly seal the through hole, so as to effectively improve the electromagnetic shielding effect.

[0069] 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.

[0070] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0071] In the description of this utility model, "multiple" means two or more.

[0072] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0073] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "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 any suitable manner in one or more embodiments or examples.

[0075] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electromagnetic shielding device, characterized in that, include: Multiple first shielding elements are arranged to form a shielding frame, which is fitted onto the outside of the electrical component. Each pair of opposite and spaced-apart first shielding elements constitutes a shielding element group, and the spacing between the two first shielding elements in each shielding element group is adjustable.

2. The electromagnetic shielding device according to claim 1, characterized in that, The first shielding component includes: a first flexible shielding component and a metal shielding component, wherein the first flexible shielding component is located inside the corresponding metal shielding component.

3. The electromagnetic shielding device according to claim 1, characterized in that, The first shielding component includes: a metal shielding component.

4. The electromagnetic shielding device according to claim 1, characterized in that, Also includes: An adjustment mechanism, the number of which is the same as the number of shielding components and they correspond one-to-one, the adjustment mechanism includes: a first adjustment component, the first adjustment component is inserted through two first shielding components corresponding to the shielding component group, and the first shielding component is movable relative to the first adjustment component along the extension direction of the first adjustment component.

5. The electromagnetic shielding device according to claim 4, characterized in that, The adjustment mechanism further includes a second adjustment member, which is movably disposed on the first adjustment member along the extension direction of the first adjustment member, and the second adjustment member is provided on the side of each first shield member away from the other first shield member, and the second adjustment member can push the corresponding first shield member to move closer to the other first shield member.

6. The electromagnetic shielding device according to claim 5, characterized in that, The first adjusting member has an external thread, and the second adjusting member is sleeved on the first adjusting member and has an internal thread that mates with the external thread.

7. The electromagnetic shielding device according to claim 5, characterized in that, The first adjusting member has a plurality of first snap-fit ​​portions arranged at intervals along the extending direction of the first adjusting member, and the second adjusting member has a second snap-fit ​​portion that can cooperate with the first snap-fit ​​portions. One of the first snap-fit ​​portion and the second snap-fit ​​portion is a snap-fit ​​protrusion, and the other of the first snap-fit ​​portion and the second snap-fit ​​portion is a snap-fit ​​hole or a snap-fit ​​groove.

8. The electromagnetic shielding device according to claim 2, characterized in that, The first flexible shielding component contains a variety of conductive fillers, which are arranged in layers or mixed together.

9. The electromagnetic shielding device according to any one of claims 1-8, characterized in that, Also includes: The second shielding element, along the thickness direction of the electromagnetic shielding device, can cover one side of the electrical component.

10. The electromagnetic shielding device according to claim 9, characterized in that, The second shielding component can cover the through-hole of the shielding cover of the electrical component; And / or, the second shielding element includes: a second flexible shielding element.

Images