Shielding assembly and circuit board structure

Abstract

The utility model relates to the technical field of circuit boards, and discloses a shielding assembly and a circuit board structure, the shielding assembly comprises a shielding main body and a supporting member, the shielding main body is used for covering a to-be-shielded area of a circuit board, and a first conductive area used for being conductively connected with a conductive layer on the surface of the circuit board is formed on the periphery of the shielding main body; the supporting piece is connected to the periphery of the shielding main body; wherein the supporting piece is provided with a second conductive area used for being conductively connected with a conduction layer on the surface of the circuit board, and the second conductive area is conductively connected with the shielding main body. According to the utility model, the supporting member is arranged on the shielding main body, and the second conductive region is arranged on the supporting member, so that the electrical connection area between the shielding assembly and the circuit board is increased compared with the condition that only the periphery of the shielding main body is in contact with the conductive layer, the grounding effect of the circuit board is improved, and the shielding effect is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of circuit board, concretely relates to a shielding assembly and circuit board structure. BACKGROUND

[0002] With the high speed development of automobile industry and electronic product, the user's performance and stability requirement of automobile is increasing, in order to improve the actual experience of user, the performance and stability of electronic product are paid more and more attention, this requires the power of electronic component more and more strong, rate is higher and higher, but the rate is too high and will produce high frequency signal radiation, makes each electronic component mutual interference, influences product performance, in order to avoid the interference of electronic component with strong radiation signal to other electronic components, usually will be covered with a shielding cover on this electronic component, shielding cover can be closed tightly electronic component, prevent electromagnetic interference and still have the effect of anti-collision.

[0003] In the related art, when the shielding cover is arranged on the circuit board, the periphery of the shielding cover is usually in contact with the conductive layer on the circuit board to achieve grounding effect; but this connection mode makes the conductive area between the shielding cover and the circuit board small, which easily leads to poor electrostatic conduction effect, and further causes poor shielding effect of the shielding cover. UTILITY MODEL CONTENTS

[0004] In order to solve the problems in the prior art, the utility model provides a shielding assembly and a circuit board structure, a support is arranged on the shielding main body, a second conductive area is arranged on the support, and the second conductive area is connected with the conductive layer of the circuit board. Since the width of the second conductive area is greater than the width of the periphery of the shielding main body, the electrical connection area of the shielding assembly and the circuit board is increased, and thus the grounding area of the circuit board is increased, thereby enhancing the shielding effect.

[0005] The technical effects achieved by the utility model are realized through the following aspects:

[0006] In a first aspect, the utility model provides a shielding assembly, which comprises

[0007] A shielding main body is arranged to cover the shielding area of the circuit board, and the periphery of the shielding main body is provided with a first conductive area for conductive connection with the conductive layer on the surface of the circuit board; and

[0008] A support is connected to the periphery of the shielding main body.

[0009] The support is provided with a second conductive area for conductive connection with the conductive layer on the surface of the circuit board, and the second conductive area is conductively connected with the shielding main body.

[0010] In some embodiments, the periphery of the shielding body is provided with a receiving groove, an inner wall of the receiving groove forms a recessed edge, and the support is located in the receiving groove and is bent to form the recessed edge.

[0011] In some embodiments, the bending angle of the support is 90 degrees.

[0012] In some embodiments, the support protrudes outward from the shielding body.

[0013] In some embodiments, the number of the supports is multiple.

[0014] In some embodiments, each edge of the shielding body is connected with at least one support.

[0015] In the second aspect, the utility model provides a circuit board structure, including circuit board and shielding assembly, the surface of circuit board is equipped with the through layer, first conductive area and / or second conductive area with through layer electrically connected.

[0016] In the embodiment, the periphery of the shielding body and the support are connected with the surface through layer of the circuit board, the electric connection area of the through layer of the circuit board and the shielding assembly is increased, thereby the electric conduction performance is enhanced, and the effect of shielding electromagnetic interference is enhanced.

[0017] In some embodiments, the circuit board is provided with a plug hole, the shielding assembly further comprises a plug-in part, the plug-in part is connected to the shielding assembly, and the plug-in part is plugged into the plug hole.

[0018] Further, an inner wall of the plug hole is provided with an electric connection layer, and the electric connection layer is electrically connected with the plug-in part.

[0019] In some embodiments, the plug-in part comprises a plug-in body and a convex envelope, the plug-in body is inserted into the plug hole, the convex envelope is connected to the plug-in body, and the convex envelope abuts against the inner wall of the plug hole.

[0020] In summary, the utility model has at least the following advantages:

[0021] The shielding assembly provided by the utility model is connected with the periphery of the shielding body, and since the first conductive area of the shielding body and the second conductive area of the support are respectively in contact with the through layer on the circuit board, compared with the periphery of the shielding body being in contact with the through layer only, the utility model increases the electric connection area of the shielding assembly and the circuit board, thereby increasing the grounding effect of the circuit board and enhancing the shielding effect. Moreover, since the contact area of the shielding assembly and the circuit board is large, the position stability of the shielding assembly is improved, and the connection stability of the shielding assembly and the circuit board is higher. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 Structure diagram of a circuit board structure for some embodiments;

[0023] Figure 2 Structure diagram of a circuit board structure for some embodiments; Figure 1 Structure diagram of a shielding assembly of the circuit board structure shown in FIG. 1;

[0024] Figure 3 Structure diagram of a circuit board structure for some embodiments; Figure 1 Structure diagram of a circuit board structure for some embodiments;

[0025] Figure 4 Structure diagram of a circuit board structure for some embodiments; Figure 1 Structure diagram of a second conductive region and a conductive layer for some embodiments;

[0026] Figure 5 Structure diagram of a circuit board structure for some embodiments; Figure 1 Structure diagram of a plug and a plug hole for some embodiments.

[0027] Markings in the figures:

[0028] 10, shielding assembly;

[0029] 100, shielding body; 110, first conductive region; 120, main edge; 130, recessed edge; 101, accommodating groove;

[0030] 200, support; 210, second conductive region;

[0031] 300, plug; 310, plug body; 320, convex;

[0032] 20, circuit board;

[0033] 400, conductive layer;

[0034] 500, plug hole;

[0035] 600, electrically connecting layer. DETAILED DESCRIPTION

[0036] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The described embodiments are some embodiments of the present application, but not all the embodiments of the present application.

[0037] The following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the application. Based on the embodiments of the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the application.

[0038] Embodiment 1

[0039] Please refer to the accompanying drawings Figures 1-4 The shielding assembly 10 comprises a shielding main body 100 and a support 200.

[0040] The shielding main body 100 is a tool for shielding electronic signals, and functions to shield the influence of external electromagnetic waves on internal circuits and to suppress the radiation of electromagnetic waves generated internally. The shielding main body 100 is a cover, i.e. a space is formed inside the shielding main body 100, the shielding main body 100 is used to cover the area to be shielded on the circuit board 20, and the periphery of the shielding main body 100 is formed with a first conductive area 110 for conductive connection with the conductive layer 400 on the surface of the circuit board 20, so that the circuit board 20 is electrically connected with the shielding main body 100. The support 200 is connected to the periphery of the shielding main body 100, so that the support 200 is electrically connected with the shielding main body 100, the support 200 is provided with a second conductive area 210 for conductive connection with the conductive layer on the surface of the circuit board, the second conductive area 210 is conductively connected with the shielding main body 100, so that the conductive layer 400, the support 200 and the shielding main body 100 are sequentially conductive, and the conductive area of the shielding assembly 10 and the circuit board 20 is increased. It can be understood that the support 200 can be connected to the periphery of the shielding main body 100 by welding, embedding, clamping and integrally forming, in this embodiment, the support 200 is integrally formed on the periphery of the shielding main body 100, so that the connection between the support 200 and the shielding main body 100 is more stable, the integrity is stronger, and the conductive reliability of the shielding assembly 10 is improved.

[0041] In this embodiment, when the shielding assembly 10 is used, the shielding assembly 10 is installed on the circuit board 20, so that the first conductive area 110 of the shielding main body 100 is in contact with and conductive with the conductive layer 400 on the surface of the circuit board 20, and the second conductive area 210 of the support 200 is in contact with and conductive with the conductive layer 400, so that the shielding assembly 10 is used to shield the electromagnetic waves outside the circuit board 20. Preferably, the first conductive area 110 is formed around the periphery of the shielding main body 110, so that the conductive effect is more superior.

[0042] The shielding assembly 10 is connected to the periphery of the shielding body 100, and the first conductive area 110 of the shielding body 100 and the second conductive area 210 of the support 200 are in contact with the conductive layer 400 on the circuit board 20, respectively, so that the electric connection area of the shielding assembly 10 and the circuit board 20 is increased compared with the periphery of the shielding body 100 being in contact with the conductive layer 400, and the grounding area of the circuit board 20 is increased, thereby enhancing the shielding effect. Moreover, the contact area of the shielding assembly 10 and the circuit board 20 is large, the position stability of the shielding assembly 10 is improved, and the connection stability of the shielding assembly 10 and the circuit board 20 is higher.

[0043] In some preferred embodiments, the shielding body 100 and the support 200 are integrally formed, so that the structural stability of the shielding assembly 10 is improved, and the strength consistency of the shielding assembly 10 is higher. Of course, the shielding body 100 and the support 200 are not limited to being integrally formed, and in other embodiments, the shielding body 100 and the support 200 can be separately formed, and the shielding body 100 and the support 200 are connected through fasteners.

[0044] In some preferred embodiments, the number of the supports 200 is multiple, each support 200 is connected to the periphery of the shielding body 100, and each support 200 is provided with the second conductive area 210. The second conductive areas 210 of the multiple supports 200 are connected to and conductive with the conductive layer 400 on the circuit board 20, so that the conductivity between the shielding assembly 10 and the circuit board 20 is further improved, and the shielding effect of the shielding assembly 10 is better.

[0045] In some more preferred embodiments, each edge of the shielding body 100 is connected to at least one support 200, so that the position stability of the shielding body 100 is improved.

[0046] Embodiment 2:

[0047] The difference between this embodiment and embodiment 1 is that the structure of the shielding assembly 10 of the utility model is further optimized in this embodiment, please refer to Figure 2 .

[0048] The periphery of the shielding body 100 includes the main edge 120 and the recessed edge 130, the periphery of the shielding body 100 is provided with the accommodating groove 101, the inner wall of the accommodating groove 101 surrounds the recessed edge 130, the two ends of the recessed edge 130 are connected to the main edge 120, respectively, and the support 200 is located in the accommodating groove 101, and the support 200 is bent to form the recessed edge 130. Preferably, the main edge 120 is the first conductive area 110.

[0049] Furthermore, since the support member 200 generates a bending angle when it bends, if the receiving groove 101 is eliminated, the second conductive area 210 of the support member 200 will not be flush with the main edge 110 of the shield body 100, resulting in the main edge 120 and the second conductive area 210 being unable to simultaneously connect to the flat conductive layer 400. Therefore, in this embodiment, a receiving groove 101 is provided at the periphery, and the support member 200 is bent at the recessed edge 130 of the receiving groove 101, so that the bending angle is accommodated within the receiving groove 101, thereby allowing the second conductive area 210 of the support member 200 to be flush with the periphery. This allows the main edge 120 and the second conductive area 210 to simultaneously connect to the flat conductive layer 400, that is, the conductive layer 400 of the circuit board 20 can be designed as a flat surface, reducing the processing difficulty of the conductive layer 400 of the circuit board 20 and improving the processing efficiency of the circuit board 20.

[0050] In some more preferred embodiments, the support member 200 is bent at a 90° angle and protrudes from the outside of the shield body 100, so that the second conductive area 210 on the support member 200 can be planarly connected to the conductive layer 400 on the circuit board 20. This eliminates any gap between the second conductive area 210 and the conductive layer 400, thereby enhancing electrical conductivity and providing a better shielding effect. Furthermore, the connection stability between the shield assembly 10 and the conductive layer 400 on the surface of the circuit board 20 is also improved. Of course, in other embodiments, the support member 200 is not limited to protruding from the outside of the shield body 100, but may also protrude from the inside of the shield body 100.

[0051] It can be understood that in some other embodiments, the support member 200 is not limited to being set in the accommodating groove 101 on the periphery of the shielding body 100, but can also be directly installed on the periphery of the shielding body 100, or directly installed on the side of the shielding body 100 opposite to the circuit board 20. The support member 200 and the shielding body 100 are connected by fasteners, or the support member 200 and the shielding body 100 are integrally formed.

[0052] In some preferred embodiments, each main edge 120 of the shielding body 100 is connected to at least one supporting member 200 , thereby improving the position stability of the shielding body 100 .

[0053] Example 3:

[0054] This embodiment provides a circuit board structure based on the above embodiment. Figures 1-5 .

[0055] A circuit board structure includes a circuit board 20 and a shielding assembly 10.

[0056] The main function of the circuit board 20 is to support, connect and assemble electronic components, realize electrical connection between electronic components by arranging conductive lines on the insulating substrate, thereby transmitting electrical signals, distributing power, amplifying signals, controlling timing, etc., and is an indispensable part of electronic equipment. The shielding assembly 10 is provided to avoid interference of electronic components with strong radiation signals to other electronic components, and the shielding assembly 10 can tightly seal the electronic components and play a shielding electromagnetic interference effect.

[0057] The surface of the circuit board 20 is provided with a conductive layer 400, and the first conductive area 110 and / or the second conductive area 210 are in conductive connection with the conductive layer 400. That is, the conductive layer 400 is in conductive connection with the first conductive area 110 of the shielding main body 100 and the second conductive area 210 on the support 200, respectively.

[0058] The circuit board structure of the utility model, support 200 connect in the circumference of shielding main body 100, because the first conductive area 110 of shielding main body 100 and the second conductive area 210 of support 200 are in contact with the conductive layer 400 on the circuit board 20 respectively, thus relative to only the circumference of shielding main body 100 is in contact with the conductive layer 400, the utility model increases the electric connection area of shielding assembly 10 and circuit board 20, and further increases the grounding effect of circuit board 20, and plays the effect of enhancing shielding. Moreover, because the contact area of shielding assembly 10 and circuit board 20 is larger, the position stability of shielding assembly 10 is improved, that is, the connection stability of shielding assembly 10 and circuit board 20 is higher.

[0059] Preferably, the conductive layer 400 is arranged around the edges of the first conductive area 110 and the second conductive area 210 of the shielding main body 100, respectively, increasing the conductive area of the shielding assembly 10 and the circuit board 20, and improving the conductive effect of the shielding assembly 10 and the circuit board 20. Since the conductive layer 400 is arranged around the edges of the first conductive area 110 and the second conductive area 210 of the shielding main body 100, respectively, that is, the conductive layer 400 is continuous, there is no gap between the shielding assembly 10 and the circuit board 20, so that the sealing performance is good, avoiding the problem of poor shielding effect caused by poor contact, thereby making the shielding effect more superior.

[0060] In other embodiments, the shielding assembly 10 is a square structure, and each edge of the shielding main body 100 is connected to at least one support 200, which improves the stability of the shielding main body 100 and facilitates the installation and positioning of the shielding assembly 10. Of course, in other embodiments, the shielding assembly 10 can also be a circular structure or a triangular structure.

[0061] In some preferred embodiments, the circuit board 20 is provided with a plug hole 500, and the shielding assembly 10 further comprises a plug 300 connected to the shielding assembly 10 and plugged into the plug hole 500, so that the connection between the shielding assembly 10 and the circuit board 20 is more stable, and the position stability of the shielding assembly 10 is improved. When the electronic components covered by the shielding assembly 10 on the circuit board 20 need to be repaired, the plug 300 is only needed to be pressed on the back of the circuit board 20 to make the plug 300 disengage from the plug hole 500, and then the shielding assembly 10 can be removed; after the repair is completed, the plug 300 is only needed to be plugged into the plug hole 500 of the circuit board 20 again, so that the installation is completed, the effect of disassembly and assembly is faster and more convenient, and the repair efficiency is improved.

[0062] In some preferred embodiments, the inner wall of the plug hole 500 is provided with an electric connection layer 600, and the electric connection layer 600 is electrically connected with the plug 300, so that the connection area of the shielding assembly 10 and the circuit board 20 is increased, the electric conduction effect is better, and the shielding effect is further superior.

[0063] In some other embodiments, the plug 300 comprises a plug body 310 and a convex block 320, the plug body 310 is inserted into the plug hole 500, and the convex block 320 is connected to the side surface of the plug body 310 and abuts against the inner wall of the plug hole 500, so that the plug 300 is in interference fit with the plug hole 500 through the convex block 320, the connection between the plug 300 and the plug hole 500 is more stable, the electric conduction performance is enhanced, and the installation stability of the shielding assembly 10 is improved.

[0064] In the utility model, unless another definite provision and limitation, the terms "installation", "connection", "connection", "fixation" and the like terms should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or be integrated; can be mechanical connection, can be electric connection; can be directly connected, can be indirectly connected through intermediate medium, can be the communication or interaction relationship of two elements inside. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0065] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the utility model product is used, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0066] In addition, the terms "horizontal", "vertical", "overhang" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0067] In the utility model, unless otherwise explicitly specified and limited, the first feature above or below the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature therebetween. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0068] Although the description of the utility model is combined with the above specific embodiments, it is obvious that persons skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such alternatives, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A shielding assembly, characterized in that: include: A shielding body (100), the shielding body (100) being used to cover a shielded area of ​​a circuit board (20), a first conductive area (110) being formed on a periphery of the shielding body (100) for conductive connection with a conductive layer (400) on a surface of the circuit board (20); and a support member (200), the support member (200) being connected to the periphery of the shielding body (100); The support member (200) is provided with a second conductive area (210) for conductively connecting to the conductive layer (400) on the surface of the circuit board (20), and the second conductive area (210) is conductively connected to the shielding body (100).

2. The shielding assembly according to claim 1, wherein: An accommodating groove (101) is provided on the periphery of the shielding body (100), the inner wall of the accommodating groove (101) forms a recessed edge (120), and the supporting member (200) is located in the accommodating groove (101) and is bent to form the recessed edge (120).

3. The shielding assembly according to claim 2, wherein: The support member (200) has a bending angle of 90°.

4. The shielding assembly according to claim 3, wherein: The support member (200) protrudes from the outside of the shielding body (100).

5. The shielding assembly according to claim 1, wherein: The number of the supporting members (200) is plural.

6. The shielding assembly according to claim 5, wherein: Each edge of the shielding body (100) is connected to at least one of the supporting members (200).

7. A circuit board structure, characterized in that: The invention comprises a circuit board (20) and a shielding assembly (10) according to any one of claims 1 to 6, wherein a conductive layer (400) is provided on the surface of the circuit board (20), and the first conductive area (110) and / or the second conductive area (210) are conductively connected to the conductive layer (400).

8. The circuit board structure according to claim 7, wherein: The circuit board (20) is provided with a plug hole (500), and the shielding assembly (10) further comprises a plug connector (300), the plug connector (300) is connected to the shielding assembly (10), and the plug connector (300) is plugged into the plug hole (500).

9. The circuit board structure according to claim 8, characterized in that: An electrical connection layer (600) is provided on the inner wall of the plug hole (500), and the electrical connection layer (600) is electrically connected to the plug connector (300).

10. The circuit board structure according to claim 8, wherein: The plug connector (300) comprises a plug body (310) and a convex bump (320), wherein the plug body (310) is inserted into the plug hole (500), the convex bump (320) is connected to the plug body (310), and the convex bump (320) abuts against the inner wall of the plug hole (500).

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