Shield and electronic device provided with same
Through the design of the metal plate body, the electromagnetic shielding, reinforcement and grounding functions are integrated, and the cumbersome problems of circuit board assembly are solved, achieving simplified assembly and improved efficiency.
Patent Information
- Application Number
- CN202422254819.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-13
AI Technical Summary
In the prior art, the electromagnetic shielding, reinforcement and grounding functions of circuit boards in electronic devices require multiple components, resulting in a cumbersome assembly process.
A shielding member is adopted, including a first area and a second area of the metal plate body, the first area protrudes to form a receiving cavity for shielding components, the second area has a flat plate structure for reinforcing the circuit board, and grounding is achieved through contact with the middle frame through the first projection, integrating electromagnetic shielding, reinforcement and grounding functions.
The functions of electromagnetic shielding, circuit board reinforcement and grounding are realized through shielding, which reduces additional components, simplifies the assembly process of the circuit board and improves assembly efficiency.
Smart Images
Figure CN223157500U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of electronic devices, and particularly relates to a shielding member and an electronic device having the same. Background Art
[0002] In an electronic device, a large number of electronic components are arranged on a circuit board. In order to prevent some electronic components from being affected by electromagnetic interference, electromagnetic shielding needs to be performed on these electronic components. At the same time, since the circuit board is relatively weak at some positions, structural strengthening of the circuit board is required. In addition, since static electricity is generated during the use of the circuit board, grounding treatment of the circuit board is also required.
[0003] In related technologies, a shielding member is often arranged in the electronic device to cover some electronic components, so as to achieve shielding of electromagnetic signals; and, a reinforcing steel sheet is welded to some parts of the circuit board to reinforce the circuit board; in addition, a grounding structure such as a metal elastic sheet with a convex portion is arranged in the electronic device, and the grounding structure is respectively connected to the circuit board and the middle frame to conduct the static electricity on the circuit board.
[0004] However, in the above structure, the method of setting multiple components to achieve multiple functions often makes the assembly process of the circuit board rather cumbersome. Summary of the Utility Model
[0005] Embodiments of the present disclosure provide a shielding member and an electronic device having the same, which can solve the above technical problems existing in related technologies. The technical solutions are as follows:
[0006] In a first aspect, a shielding member is provided. The shielding member includes a metal plate body, and the metal plate body includes a first area and a second area connected to each other;
[0007] The first area protrudes relative to the second area to form a receiving cavity, and the receiving cavity is used to receive the components on the circuit board to be electromagnetically shielded;
[0008] The second area has a flat plate structure, and the flat plate structure is used to reinforce the circuit board. The surface of the flat plate structure has a first protrusion portion, and the protruding direction of the first protrusion portion is the same as that of the first area. The first protrusion portion is used to contact the middle frame.
[0009] In a possible implementation manner, the metal plate body further includes a third area, the third area is respectively connected to the first area and the second area, and protrudes relative to the second area, and the protruding direction is the same as that of the first area.
[0010] In a possible implementation, the third region is adjacent to the second region along a first boundary line, the first region is adjacent to the second region along a second boundary line, and the second boundary line is connected to the first boundary line and is not collinear with it.
[0011] In a possible implementation, the third region is adjacent to the second region along a first boundary line, the third region is adjacent to the second region along a third boundary line, both the third boundary line and the first boundary line are connected to the first region, and the third boundary line forms an angle with the first boundary line.
[0012] In a possible implementation, the metal plate body includes a plurality of the third regions.
[0013] In a possible implementation, the flat plate structure further has a relief hole for avoiding the connecting member between the middle frame and the circuit board; or,
[0014] The flat plate structure further has a relief notch for avoiding the connecting member between the middle frame and the circuit board.
[0015] In a possible implementation, the surface of the flat plate structure has a plurality of first protrusions;
[0016] When the flat plate structure has the relief hole, the plurality of first protrusions are spaced along the edge of the relief hole; or,
[0017] When the flat plate structure has the relief notch, the plurality of first protrusions are spaced along the edge of the relief notch.
[0018] In a possible implementation, the metal plate body further includes a fourth region having a rocker structure. One end of the rocker structure is connected to the second region, the other end of the rocker structure protrudes relative to the second region, the surface of the rocker structure has second protrusions, the protruding directions of the second protrusions are the same as those of the first region, and the second protrusions are used to contact the middle frame.
[0019] In a possible implementation, the first region has ventilation holes.
[0020] In a second aspect, an electronic device is provided, and the electronic device includes the shielding member according to any one of the first aspect.
[0021] The beneficial effects brought by the technical solutions provided by the present disclosure at least include:
[0022] The first region of the metal plate body can shield the components to be electromagnetically shielded on the circuit board. The second region can not only reinforce the circuit board, but also contact the middle frame through the first protrusion, so that the static electricity on the circuit board can be guided to the middle frame. Thus, the functions of electromagnetic shielding, circuit board reinforcement, and circuit board grounding can be realized through the shielding part, without adding components for circuit board reinforcement and circuit board grounding, thereby greatly simplifying the assembly process of the circuit board.
[0023] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0025] Figure 1 is a schematic structural diagram of a shielding part provided by an embodiment of the present disclosure;
[0026] Figure 2 is a schematic structural diagram of a shielding part provided by an embodiment of the present disclosure.
[0027] Reference Signs:
[0028] 1, first region; 11, second boundary line; 12, ventilation hole; 13, side plate; 14, top plate;
[0029] 2, second region; 21, first protrusion; 22, avoidance hole; 23, avoidance notch; 24, connecting flange;
[0030] 3, third region; 31, first boundary line; 32, third boundary line; 33, convex plate; 34, connecting plate;
[0031] 4, fourth region; 41, rocker structure; 42, second protrusion. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0032] To make the objectives, technical solutions, and advantages of the present disclosure clearer, the following will further describe the embodiments of the present application in detail with reference to the drawings.
[0033] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will describe the present application in detail with reference to the drawings and in combination with the embodiments.
[0034] An embodiment of the present disclosure provides a shielding part, asFigure 1 and Figure 2 As shown in Figure 2 , the shielding member includes a metal plate body, and the metal plate body includes a first region 1 and a second region 2 which are connected to each other. The first region 1 protrudes relative to the second region 2 to form a receiving cavity for receiving the components to be electromagnetically shielded on the circuit board. The second region 2 has a flat plate structure for strengthening the circuit board. The surface of the flat plate structure has a first protrusion 21, and the protruding direction of the first protrusion 21 is the same as that of the first region 1. The first protrusion 21 is used to contact the middle frame.
[0035] In the shielding member provided by the embodiment of the present disclosure, the first region 1 of the metal plate body can shield the components to be electromagnetically shielded on the circuit board. The second region 2 can not only strengthen the circuit board, but also guide the static electricity on the circuit board to the middle frame through the first protrusion 21, so as to realize the grounding of the circuit board. Thus, without adding extra components, the functions of electromagnetic shielding, circuit board strengthening and circuit board grounding can be realized through the shielding member, thereby greatly simplifying the assembly process of the circuit board.
[0036] Wherein, the flat plate structure of the second region 2 can be welded to the relatively weak part of the circuit board, so as to realize the structural reinforcement of the circuit board and protect the circuit board. And when connecting the circuit board and the middle frame, at least part of the flat plate structure of the second region 2 is located between the circuit board and the middle frame, and the first protrusion 21 contacts the middle frame. Since the metal plate body is made of metal, it can conduct the static electricity on the circuit board, so as to guide the static electricity on the circuit board to the middle frame, and thus the grounding of the circuit board can be realized.
[0037] In some embodiments, the first region 1 is composed of a side plate 13 and a top plate 14. The side plate 13 and the top plate 14 enclose a receiving cavity with an opening at the bottom. The first region 1 can cover the components to be electromagnetically shielded in the receiving cavity, and isolate the external electromagnetic signals through the side plate 13 and the top plate 14 made of metal, preventing the external electromagnetic signals from interfering with the components it covers. At the same time, it can also shield the electromagnetic signals emitted by the components it covers, so as to prevent the components it covers from interfering with the electronic components outside the receiving cavity.
[0038] In some embodiments, the second region 2 further has a connecting flange 24, and the connecting flange 24 is connected to the edge of the side plate 13 away from the top plate 14 to connect the first region 1 to the circuit board through the connecting flange 24.
[0039] In some embodiments, a part of the connecting flange 24 extends in a direction away from the first region 1 to form the flat plate structure of the second region 2.
[0040] Optionally, the shielding member is made by die-casting process. The first protrusion 21 on the flat plate structure is also obtained by die-casting.
[0041] In an implementation of the embodiments of the present disclosure, as Figure 1 shown, the metal plate body further includes a third region 3, the third region 3 is respectively connected to the first region 1 and the second region 2, and protrudes relative to the second region 2, and the protruding direction is the same as the protruding direction of the first region 1.
[0042] Since the size of the metal plate body in the shielding member is often relatively thin, during the production, handling, and installation of the shielding member, the flat structure is prone to deformation, which may result in poor flatness of the contact surface between the shielding member and the circuit board during the welding process of the shielding member and the circuit board, thus being disadvantageous for welding the shielding member.
[0043] For example: during the installation process, the operator touches the edge of the second region 2 far from the first region 1 and applies a force in the same direction as the protruding direction of the first region 1. This force will form a relatively large moment at the boundary line between the first region 1 and the second region 2, thereby causing the flat structure to bend.
[0044] In the shielding member provided by the embodiments of the present disclosure, a boss structure is formed between the first region 1 and the second region 2 through the third region 3. Through this boss structure, the flat structure can be supported at the boundary line between the first region 1 and the second region 2 to limit the bending of the second region 2 at the boundary line with the first region 1. In addition, during the production process of the shielding member, by setting this boss structure, the stress inside the metal plate body can be dispersed, thereby preventing damage to the metal plate body caused by environmental factors.
[0045] In some embodiments, the protruding height of the third region 3 relative to the second region 2 is less than the protruding height of the first region 1 relative to the second region 2.
[0046] Optionally, the ratio of the protruding height of the third region 3 relative to the second region 2 to the protruding height of the first region 1 relative to the second region 2 is between 1:5 and 1:2.
[0047] In some embodiments, the third region 3 includes a convex plate 33 and a connecting plate 34. The convex plate 33 is higher than the height of the second region 2 and is parallel to the flat structure of the second region 2. Among them, a part of the convex plate 33 is connected to the side plate 13 at a position between the top plate 14 and the opening of the accommodating cavity, and another part of the convex plate 33 is connected to the connecting plate 34, and the connecting plate 34 extends downward to be connected to the second region 2.
[0048] In an implementation of the embodiments of the present disclosure, the third region 3 is adjacent to the second region 2 at a first boundary line 31, the first region 1 is adjacent to the second region 2 at a second boundary line 11, and the second boundary line 11 is connected to the first boundary line 31 and is not on the same straight line.
[0049] It can be seen that the first region 1, the second region 2, and the third region 3 are adjacent to each other pairwise.
[0050] In this way, when a force is applied to the edge of the second region 2 far from the first region 1, a moment will be formed at the second boundary line 11. However, since the second boundary line 11 is connected to the first boundary line 31 and is not on the same straight line, the protruding part of the third region 3 and the second region 2 will pull each other, and it is difficult to bend at the position of the straight line where the second boundary line 11 is located. Thus, the deformation of the flat plate structure at the second boundary line 11 can be restricted by the third region 3, and further, the deformation of the second region 2 can be effectively prevented.
[0051] In an implementation manner of the embodiment of the present disclosure, the third region 3 is also adjacent to the second region 2 at the third boundary line 32. Both the third boundary line 32 and the first boundary line 31 are connected to the first region 1, and the third boundary line 32 and the first boundary line 31 form an angle.
[0052] Since the space inside the electronic device is relatively limited, it is necessary to minimize the size of the third region 3 occupying the metal plate body. With such a setting, the first boundary line 31, the third boundary line 32, and the edge of the first region 1 form a quasi-triangle, so that the size of the third region 3 occupying the metal plate body can be reduced while ensuring that the third region 3 can effectively prevent the second region 2 from deforming, so as to optimize the space inside the electronic device.
[0053] Specifically, the value of the angle between the third boundary line 32 and the first boundary line 31 is 0 to 90°.
[0054] In an implementation manner of the embodiment of the present disclosure, the metal plate body includes a plurality of third regions 3.
[0055] In this way, the shape of the boundary lines of each region can be further changed, so that the deformation of the metal plate body at the boundary lines of each region can be effectively prevented.
[0056] In some embodiments, the plurality of third regions 3 are connected to each other, and the boundary lines of the plurality of third regions 3 and the second region 2 form a wavy pattern.
[0057] In an implementation manner of the embodiment of the present disclosure, as Figure 1 shown, the flat plate structure has an avoidance hole 22, and the avoidance hole 22 is used to avoid the connecting member between the middle frame and the circuit board.
[0058] In this way, it is possible to prevent the flat structure from obstructing the connection between the middle frame and the circuit board, facilitating the installation of the middle frame and the circuit board. Moreover, connection parts corresponding to the connecting members are provided on the circuit board, and the avoidance holes 22 are correspondingly arranged at these connection parts, so that the positioning of the shielding member on the circuit board can be realized according to the positional relationship between these connection parts and the avoidance holes 22.
[0059] In one implementation of the embodiments of the present disclosure, the surface of the flat structure has a plurality of first protrusions 21, and the plurality of first protrusions 21 are spaced apart along the edge of the avoidance hole 22.
[0060] In this way, when the circuit board is connected to the middle frame, by providing the plurality of first protrusions 21, the situation where a single first protrusion 21 is in poor contact with the middle frame can be effectively avoided, thereby further improving the grounding stability of the circuit board. Moreover, when the circuit board is connected to the middle frame, the plurality of first protrusions 21 are spaced apart along the edge of the avoidance hole 22 to closely fit with the middle frame through the plurality of first protrusions 21, thus ensuring the connection stability between the middle frame and the circuit board.
[0061] In one implementation of the embodiments of the present disclosure, as Figure 2 shown, the flat structure further has an avoidance notch 23, and the avoidance notch 23 is used to avoid the connecting member between the middle frame and the circuit board.
[0062] In this way, it is possible to prevent the flat structure from obstructing the connection between the middle frame and the circuit board, facilitating the installation of the middle frame and the circuit board. Moreover, connection parts corresponding to the connecting members are provided on the circuit board, and the avoidance notch 23 is correspondingly arranged at these connection parts, so that the positioning of the shielding member can be realized according to the positional relationship between these connection parts and the avoidance notch 23, thereby greatly improving the convenience of connecting the shielding member to the circuit board.
[0063] In one implementation of the embodiments of the present disclosure, the surface of the flat structure has a plurality of first protrusions 21, and the plurality of first protrusions 21 are spaced apart along the edge of the avoidance notch 23.
[0064] In this way, when the circuit board is connected to the middle frame, by providing the plurality of first protrusions 21, the situation where a single first protrusion 21 is in poor contact with the middle frame can be effectively avoided, thereby further improving the grounding stability of the circuit board. Moreover, when the circuit board is connected to the middle frame, the plurality of first protrusions 21 are spaced apart along the edge of the avoidance notch 23 to closely fit with the middle frame through the plurality of first protrusions 21, thus ensuring the connection stability between the middle frame and the circuit board.
[0065] In one implementation of the embodiments of the present disclosure, as Figure 2As shown, the metal plate body further includes a fourth region 4, and the fourth region 4 has a seesaw structure 41. One end of the seesaw structure 41 is connected to the second region 2, and the other end of the seesaw structure 41 protrudes relative to the second region 2. The surface of the seesaw structure 41 has a second protrusion 42, and the protruding direction of the second protrusion 42 is the same as that of the first region 1. The second protrusion 42 is used to contact the middle frame.
[0066] In this way, the fourth region 4 tilts relative to the second region 2. When the circuit board is connected to the middle frame, the circuit board and the middle frame sandwich the second region 2 and the first region 1. Under this sandwiching effect, the seesaw structure 41 of the fourth region 4 is flattened by the middle frame. Due to the elasticity of the metal material, the seesaw structure 41 has a tendency to return to its original state under the action of this elasticity, so as to drive the second protrusion 42 on the seesaw structure 41 to stably abut against the middle frame, thereby further ensuring the stability of the grounding of the circuit board.
[0067] In one implementation of the embodiments of the present disclosure, as Figure 1 shown, the first region 1 has ventilation holes 12.
[0068] In the related art, before and after welding the shielding part or during the use of the shielding part, due to the change in temperature, the pressure change inside the accommodation cavity is relatively obvious, resulting in a pressure difference between the accommodation cavity and the outside, which easily causes the shielding part to deform.
[0069] In the shielding part provided by the embodiments of the present disclosure, by providing ventilation holes 12 on the first region 1, when the temperature of the shielding part changes, the accommodation cavity communicates with the outside, so as to effectively prevent the shielding part from deforming due to the pressure difference inside and outside the accommodation cavity, and improve the structural stability of the shielding part.
[0070] In some embodiments, there are multiple ventilation holes 12.
[0071] In some embodiments, the ventilation holes 12 are located on the top plate 14 of the first region 1.
[0072] The embodiments of the present disclosure also provide an electronic device, and the electronic device includes the above-mentioned shielding part.
[0073] In the electronic device provided by the embodiments of the present disclosure, the functions of electromagnetic shielding, circuit board reinforcement, and circuit board grounding can be realized through the shielding part, reducing the components required for circuit board reinforcement and circuit board grounding, thus greatly simplifying the assembly process of the circuit board and improving the assembly efficiency of the electronic device.
[0074] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0075] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not require further discussion in subsequent drawings.
[0076] In the description of the present disclosure, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present disclosure; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0077] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.
[0078] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the scope of protection of the present disclosure.
[0079] The above are only the preferred embodiments of the present disclosure and are not used to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included within the scope of protection of the present disclosure.
Claims
1. A shielding member, characterized in that, The shielding member includes a metal plate body, and the metal plate body includes a first region (1) and a second region (2) that are connected to each other; The first region (1) protrudes relative to the second region (2) to form a receiving cavity for receiving the components to be electromagnetically shielded on the circuit board; The second region (2) has a flat plate structure for strengthening the circuit board. The surface of the flat plate structure has a first protrusion (21), and the protruding direction of the first protrusion (21) is the same as that of the first region (1). The first protrusion (21) is used to contact the middle frame.
2. The shielding member according to claim 1, wherein The metal plate body further includes a third region (3). The third region (3) is connected to the first region (1) and the second region (2) respectively, protrudes relative to the second region (2), and the protruding direction is the same as that of the first region (1).
3. The shielding member according to claim 2, wherein The third region (3) and the second region (2) are adjacent to a first boundary line (31). The first region (1) and the second region (2) are adjacent to a second boundary line (11). The second boundary line (11) is connected to the first boundary line (31) and is not on the same straight line.
4. The shielding member according to claim 2, wherein The third region (3) and the second region (2) are adjacent to a first boundary line (31). The third region (3) and the second region (2) are adjacent to a third boundary line (32). Both the third boundary line (32) and the first boundary line (31) are connected to the first region (1), and an included angle is formed at one end where the third boundary line (32) is connected to the first boundary line (31).
5. The shielding member according to claim 2, wherein The metal plate body includes a plurality of the third regions (3).
6. The shielding member according to claim 1, wherein The flat plate structure further has an avoidance hole (22) for avoiding the connecting member between the middle frame and the circuit board; or, The flat plate structure further has an avoidance notch (23) for avoiding the connecting member between the middle frame and the circuit board.
7. The shielding member according to claim 6, wherein The surface of the flat plate structure has a plurality of first protrusions (21); When the flat plate structure has the avoidance hole (22), the plurality of first protrusions (21) are spaced apart along the edge of the avoidance hole (22); Or, When the flat plate structure has the avoidance notch (23), the plurality of first protrusions (21) are spaced apart along the edge of the avoidance notch (23).
8. The shielding member according to claim 1, wherein The metal plate body further includes a fourth region (4), the fourth region (4) having a seesaw structure (41), one end of the seesaw structure (41) being connected to the second region (2), the other end of the seesaw structure (41) protruding relative to the second region (2), the surface of the seesaw structure (41) having a second protruding portion (42), the second protruding portion (42) having the same protruding direction as that of the first region (1), and the second protruding portion (42) being used for contacting the middle frame.
9. The shielding member according to claim 1, wherein the first region (1) has air vents (12).
10. An electronic device, wherein the electronic device includes the shielding member according to any one of claims 1 to 9.