Circuit board and electronic equipment

Abstract

The embodiment of the utility model relates to the technical field of electronics, and particularly discloses a circuit board, which comprises a substrate, a component and a first shielding cover, the base plate is provided with a mounting plane, the base plate is provided with a plurality of connecting holes, and the connecting holes are formed in the thickness direction of the base plate; the component is arranged on the mounting plane; the first shielding cover comprises a top plate and a side wall, the edge of the top plate extends towards the substrate to form the side wall, the end, away from the top plate, of the side wall is connected to the mounting plane, the top plate, the side wall and the substrate define a first shielding space used for shielding components, the end, away from the top plate, of the side wall is provided with a plurality of connecting protrusions, and one connecting protrusion is inserted into one connecting hole; and the connecting bulges are in interference fit with the connecting holes. According to the embodiment of the utility model, the shielding case is convenient to disassemble and assemble.

Description

Technical Field

[0001] The embodiments of the utility model relate to the field of electronic technology, and in particular to a circuit board and electronic equipment. Background Art

[0002] A shielded circuit board typically consists of a substrate, components, and a shielding case. The components are mounted on the substrate, which is secured to the shielding case, housing the components. The shielding case shields electronic signals, shielding the internal circuits from external electromagnetic waves and preventing the outward radiation of internally generated electromagnetic waves. This protects the circuits within the shielding case, reducing electromagnetic interference and improving the electromagnetic compatibility of electronic equipment.

[0003] During the process of realizing the present invention, the inventors of the present invention discovered that the current shielding cover is often welded to the substrate, and this connection method makes it inconvenient to assemble and disassemble the shielding cover. Utility Model Content

[0004] The embodiments of the present invention provide a circuit board and an electronic device, which can facilitate the disassembly and assembly of a shielding cover.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: providing a circuit board, including a substrate, components and a first shielding cover; the substrate is provided with a mounting plane, the substrate is provided with a plurality of connection holes, and the connection holes are arranged along the thickness direction of the substrate; the components are arranged on the mounting plane; the first shielding cover includes a top plate and a side wall, the edge of the top plate extends toward the substrate to form the side wall, the end of the side wall away from the top plate is connected to the mounting plane, the top plate, the side wall and the substrate are enclosed to form a first shielding space for shielding the components, the end of the side wall away from the top plate is provided with a plurality of connection protrusions, a connection protrusion is inserted into a connection hole, and the connection protrusion and the connection hole are interference fit.

[0006] Optionally, a connection plane is provided at one end of the side wall away from the top plate, the connection plane is attached to the base plate, and the connection protrusion is provided on the connection plane.

[0007] Optionally, one end of the side wall connected to the base plate extends outward to form a flange.

[0008] Optionally, the flange extends toward the connecting protrusion to form a first recess, and along a direction perpendicular to the mounting plane, the first recess and the connecting protrusion are aligned.

[0009] Optionally, an edge of the connecting protrusion facing away from the first shielding space coincides with an edge of the connecting plane.

[0010] Optionally, the outer side of the side wall extends inward to form a second recess.

[0011] Optionally, the top plate is provided with heat dissipation holes.

[0012] Optionally, the circuit board further comprises a second shielding cover, the second shielding cover is arranged in the first shielding space, the second shielding cover is connected to the substrate, and the second shielding cover and the substrate enclose a second shielding space for shielding the components.

[0013] Optionally, the components are divided into a plurality of groups, and the number of the second shielding covers is plural, and one second shielding cover covers one group of components.

[0014] To solve the above technical problems, another technical scheme adopted by the utility model is to provide an electronic device comprising the circuit board according to any one of the above embodiments.

[0015] The utility model embodiment has the advantages that, different from the prior art, the utility model embodiment provides a circuit board, which comprises a substrate, components and a first shielding cover. The substrate is provided with a mounting plane for mounting the components, and the substrate is provided with a plurality of connecting holes arranged along the thickness direction of the substrate. The components are arranged on the mounting plane. The first shielding cover comprises a top plate and a side wall, the edge of the top plate extends towards the substrate to form the side wall, one end of the side wall away from the top plate is connected to the mounting plane, and the top plate, the side wall and the substrate enclose a first shielding space for shielding the components. One end of the side wall away from the top plate is provided with a plurality of connecting protrusions, one connecting protrusion is inserted into one connecting hole, and the connecting protrusions are in interference fit with the connecting holes. During assembly, the connecting protrusions and the connecting holes are first aligned one by one, then the first shielding cover is pressed in the direction towards the substrate until the connecting protrusions are all inserted into the connecting holes, and assembly is completed. During disassembly, an external force in the direction away from the substrate is applied to the first shielding cover until the connecting protrusions are all separated from the connecting holes, and disassembly is completed. In summary, the whole assembly and disassembly process is simple, convenient and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by the drawings without creative labor.

[0017] Figure 1 is an exploded view of the circuit board of the utility model embodiment;

[0018] Figure 2 is a partial enlarged view of A in Figure 1 of the utility model embodiment.

[0019] MARKED FOR EXPLANATION:

[0020] 1000, circuit board;

[0021] 1, substrate; 11, connecting hole;

[0022] 2. component;

[0023] 3. first shielding cover; 31, top plate; 311, heat dissipation hole; 32, side wall; 321, connecting plane; 322, flange; 3221, first recess; 323, second recess; 33, connecting protrusion; 4, second shielding cover. DETAILED DESCRIPTION

[0024] For the convenience of understanding the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", and similar expressions used in the specification are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used in the specification are the same as those commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0026] Please refer to Figure 1 , the circuit board 1000 includes a substrate 1, a component 2 and a first shielding cover 3. The component 2 is arranged on the substrate 1, and the first shielding cover 3 is connected to the substrate 1. The first shielding cover 3 covers all the components 2 to reduce electromagnetic interference between the components 2 inside the first shielding cover 3 and the outside.

[0027] For the above-mentioned substrate 1, please refer to Figure 1 , the substrate 1 is arranged as a PCB board. The substrate 1 is provided with a mounting plane on one side of the substrate 1, and the component 2 is fixedly connected to the mounting plane. In a direction parallel to the mounting plane, the substrate 1 is provided with a plurality of connecting holes 11 arranged in a thickness direction of the substrate 1, i.e. perpendicular to the direction of the mounting plane, and the connecting holes 11 are used for mounting the first shielding cover 3. It can be understood that the connecting holes 11 can be arranged through the substrate 1, or can be arranged as blind holes.

[0028] For the above-mentioned first shielding cover 3, please refer to Figure 1 and Figure 2The first shielding cover 3 can be formed into the desired shape by stamping electromagnetic shielding material using a mold. Specifically, the electromagnetic shielding material can be made of metals such as glass copper and stainless steel. The first shielding cover 3 includes a top plate 31 and side walls 32. The edge of the top plate 31 extends toward the substrate 1 to form the side walls 32. A connecting surface 321 is provided at the end of the side walls 32 facing away from the top plate 31. The connecting surface 321 abuts the mounting surface. The top plate 31, side walls 32, and substrate 1 together form a first shielding space for shielding the internal components 2. The top plate 31 is provided with one or more heat dissipation holes 311, which connect the first shielding space with the outside world to dissipate heat from the components 2 within the first shielding cover 3. The connecting surface 321 is provided with multiple connecting protrusions 33. Each connecting protrusion 33 is plugged into a connecting hole 11, forming an interference fit with the connecting hole 11. It is understood that the cross-sectional shape of the connecting protrusions 33 can be circular, elliptical, or other irregular shapes. Optionally, the side surface of the connecting protrusion 33 used for connection with the connecting hole 11 is configured as a cylindrical surface to provide sufficient contact area to generate the required friction and tightening force. The elastic deformation of the connecting protrusion 33 and the substrate 1 achieves a tight connection, thereby ensuring the stability and reliability of the connection. The sidewall 32, connected to the substrate 1, extends outwardly to form a flange 322. The side of the flange 322 facing the substrate 1 is configured as a connecting plane 321. The provision of the flange 322 increases the area of ​​the connecting plane 321, thereby increasing the contact area between the connecting plane 321 and the mounting plane, and improving the stability of the connection between the first shielding cover 3 and the substrate 1. The connection between the flange 322 and the connecting protrusion 33 can be achieved by integral molding, bonding, welding, etc. The side of the flange 322 away from the connecting protrusion 33 extends toward the connecting protrusion 33 to form a first recess 3221. The first recess 3221 is aligned with the connecting protrusion 33 in a direction perpendicular to the mounting plane, making it easy to quickly find the connecting protrusion 33 and enabling quick assembly and disassembly. Optionally, the connecting protrusion 33 is formed by stamping the flange 322 using a half-shear process, which ensures that the first recess 3221 is aligned with the connecting protrusion 33 in a direction perpendicular to the mounting plane, and the above process has low production costs. The side of the connecting protrusion 33 facing away from the first shielding space coincides with the edge of the connecting plane 321. This not only facilitates quick identification of the connecting protrusion 33, but also facilitates observation of the connecting protrusion 33, aligning the connecting protrusion 33 with the connecting hole 11 and applying external force to the connecting protrusion 33, making it easier to assemble and disassemble the first shielding cover 3. A second recess 323 is formed on the outer side of the side wall 32, extending inward. The second recess 323 is located between the flange 322 and the top plate 31 in a direction perpendicular to the mounting plane. The provision of the second recess 323 makes it easier for the user to grasp the first shielding cover 3 and apply external force to the first shielding cover 3, thereby facilitating assembly and disassembly of the first shielding cover 3.

[0029] In some embodiments, the outer edges of the connecting plane 321 are arranged in a rectangle, and the connecting protrusions 33 are provided in four, and one connecting protrusion 33 is arranged at a vertex of the rectangle. It can be understood that the arrangement of the connecting protrusions 33 and the shape of the connecting plane 321 are not limited to the above manner, and as long as the centers of all the connecting protrusions 33 coincide with the center of the connecting plane 321, which makes the force received by each connecting protrusion 33 more uniform, reduces stress concentration, and improves the connection rigidity between the substrate 1 and the first shielding cover 3.

[0030] In some embodiments, the circuit board 1000 further comprises a second shielding cover 4, which is arranged in the first shielding space, and the second shielding cover 4 is connected to the substrate 1, and the second shielding cover 4 and the substrate 1 enclose a second shielding space for shielding the components 2. When the components 2 are divided into multiple groups, in order to reduce electromagnetic interference between different groups of components 2, the second shielding cover 4 is provided in multiple, and one second shielding cover 4 covers one group of components 2 to reduce interference between different groups of components 2. It can be understood that the embodiments of the utility model can also not be provided with the second shielding cover 4, and the person skilled in the art can select according to the actual situation.

[0031] In the embodiments of the utility model, the circuit board 1000 comprises a substrate 1, components 2 and a first shielding cover 3. The substrate 1 is provided with a mounting plane for mounting the components 2, and the substrate 1 is provided with a plurality of connecting holes 11 arranged along the thickness direction of the substrate 1. The components 2 are arranged on the mounting plane. The first shielding cover 3 comprises a top plate 31 and a side wall 32, the edge of the top plate 31 extends towards the substrate 1 to form the side wall 32, and the end of the side wall 32 away from the top plate 31 is connected to the mounting plane, and the top plate 31, the side wall 32 and the substrate 1 enclose a first shielding space for shielding the components 2. The end of the side wall 32 away from the top plate 31 is provided with a plurality of connecting protrusions 33, one connecting protrusion 33 is inserted into one connecting hole 11, and the connecting protrusion 33 is in interference fit with the connecting hole 11. During assembly, first align each connecting protrusion 33 with each connecting hole 11, then press the first shielding cover 3 in the direction towards the substrate 1 until each connecting protrusion 33 is inserted into the connecting hole 11, and the assembly is completed. When disassembling, an external force is applied to the first shielding cover 3 in a direction away from the substrate 1 until each connecting protrusion 33 is separated from the connecting hole 11, and the disassembly is completed. In summary, the whole assembly and disassembly process is simple and convenient, and has high efficiency.

[0032] The embodiments of the electronic device provided by the utility model, the electronic device comprises the above-mentioned circuit board 1000, for the structure and function of the circuit board 1000 can refer to the above-mentioned embodiments, here will not be described one by one.

[0033] It should be noted that the description and drawings of the utility model give the preferred embodiments of the utility model, however, the utility model can be realized through many different forms, and is not limited to the embodiments described in the description, the embodiments are not as additional limitation to the content of the utility model, the purpose of providing the embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Furthermore, the above technical features continue to combine, form various embodiments not listed above, which are considered as the range of the description of the utility model; further, for those skilled in the art, the above description can be improved or transformed, and all these improvements and transformations should belong to the protection scope of the utility model claims.

Claims

1. A circuit board, characterized in that: include: A base plate is provided with a mounting plane, and the base plate is provided with a plurality of connection holes, wherein the connection holes are arranged along the thickness direction of the base plate; Components are arranged on the mounting plane; The first shielding cover includes a top plate and a side wall, the edge of the top plate extends toward the substrate to form the side wall, the end of the side wall away from the top plate is connected to the mounting plane, the top plate, the side wall and the substrate together form a first shielding space for shielding the components, and a plurality of connecting protrusions are provided at the end of the side wall away from the top plate, one of the connecting protrusions is inserted into one of the connecting holes, and the connecting protrusion is interference fit with the connecting hole.

2. The circuit board according to claim 1, wherein: A connecting plane is provided at one end of the side wall away from the top plate. The connecting plane is attached to the base plate, and the connecting protrusion is provided on the connecting plane.

3. The circuit board according to claim 1, wherein: One end of the side wall connected to the base plate extends outward to form a flange.

4. The circuit board according to claim 3, wherein: The flange extends toward the connecting protrusion to form a first recess. Along a direction perpendicular to the mounting plane, the first recess and the connecting protrusion are aligned.

5. The circuit board according to claim 2, wherein: An edge of the connecting protrusion facing away from the first shielding space coincides with an edge of the connecting plane.

6. The circuit board according to claim 1, wherein: The outer side of the side wall extends inwardly to form a second recess.

7. The circuit board according to claim 1, wherein: The top plate is provided with heat dissipation holes.

8. The circuit board according to any one of claims 1 to 7, characterized in that: The circuit board further includes a second shielding cover, which is disposed in the first shielding space and connected to the substrate. The second shielding cover and the substrate enclose a second shielding space for shielding components.

9. The circuit board according to claim 8, wherein: The components are divided into a plurality of groups, the number of the second shielding covers is a plurality, and one second shielding cover is provided to cover one group of components.

10. An electronic device, characterized in that: Comprising the circuit board according to any one of claims 1 to 9.

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