Circuit board assembly and electronic device

Abstract

This application discloses a circuit board assembly and an electronic device. The disclosed circuit board assembly includes a circuit board, a shielding cover, a first electronic device, and a second electronic device. The circuit board has a first surface, and both the first and second electronic devices are disposed on the first surface. The shielding cover is fixedly mounted on the first surface and covers the first electronic device. The shielding cover is located on one side of the second electronic device and contacts the second electronic device in a first direction, which is the arrangement direction of the second electronic device and the shielding cover on the first surface. The above solution can solve the problem of low utilization rate of the circuit board area in the circuit board assembly involved in the related technology.

Description

Technical Field

[0001] This application belongs to the field of electronic device design technology, specifically relating to a circuit board assembly and an electronic device. Background Technology

[0002] With the development of technology, the application of circuit board assemblies is becoming more and more widespread. In order to further enrich the application scenarios of circuit board assemblies, camera modules are usually installed on the circuit boards of the circuit board assemblies. In order to ensure that the camera module can be stably installed on the circuit board, the camera module needs to be positioned on the circuit board.

[0003] The related technology involves a circuit board assembly that positions the camera module on the circuit board by additionally setting a dedicated positioning component on the circuit board and positioning the camera module in conjunction with the positioning component. However, the above structure occupies a large area of ​​the circuit board, thus reducing the utilization rate of the circuit board area.

[0004] Of course, this problem is not limited to camera modules; other similar electronic devices also face the same issue when using additional, dedicated positioning components for positioning. Summary of the Invention

[0005] This invention discloses a circuit board assembly and an electronic device to solve the problem of low utilization rate of the circuit board area in the circuit board assembly involved in the related technology.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] In a first aspect, this application discloses a circuit board assembly, which includes a circuit board, a shielding cover, a first electronic device, and a second electronic device.

[0008] The circuit board has a first surface, and the first electronic device and the second electronic device are both disposed on the first surface. The shielding cover is fixedly installed on the first surface and covers the first electronic device. The shielding cover is located on one side of the second electronic device and contacts the second electronic device in a first direction. The first direction is the arrangement direction of the second electronic device and the shielding cover on the first surface.

[0009] Secondly, this application discloses an electronic device, which includes the circuit board assembly described above.

[0010] The technical solution adopted in this invention can achieve the following technical effects:

[0011] The circuit board assembly disclosed in this application improves the structure of circuit board assemblies related to the relevant technology by setting a shielding cover that contacts the second electronic device and makes the shielding cover contact the second electronic device in a first direction. This allows the shielding cover to limit the position of the second electronic device in the first direction, making full use of the shielding cover and avoiding the need for additional positioning parts that need to be fixed on the circuit board to limit the position of the second electronic device. This structure can limit the position of the second electronic device without occupying additional circuit board area, thereby avoiding wasting circuit board area and improving the utilization rate of circuit board area. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a shielding cover disclosed in an embodiment of this application;

[0013] Figure 2 This is a schematic diagram of the structure of a shielding cover disclosed in an embodiment of this application from another perspective;

[0014] Figure 3 This is a partial assembly drawing of a circuit board assembly disclosed in an embodiment of this application;

[0015] Figure 4 This is a schematic diagram of another shielding cover structure disclosed in an embodiment of this application;

[0016] Figure 5 This is a schematic diagram of the structure of another shielding cover disclosed in an embodiment of this application from another perspective;

[0017] Figure 6 This is a cross-sectional view of another shielding cover disclosed in an embodiment of this application;

[0018] Figure 7 This is a structural schematic diagram of another shielding cover disclosed in an embodiment of this application from another perspective;

[0019] Figure 8 This is a partial assembly drawing of another circuit board assembly disclosed in an embodiment of this application;

[0020] Figure 9 This is a cross-sectional view of another circuit board assembly disclosed in the embodiments of this application, showing the second electronic device in the process of being installed;

[0021] Figure 10 This is a partial cross-sectional view of another circuit board assembly disclosed in an embodiment of this application;

[0022] Figure 11 This is an assembly diagram of another circuit board assembly disclosed in an embodiment of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100 - Circuit board, 110 - First board surface

[0025] 200-Shielding cover, 210-Cover body, 211-Sealing flange, 212-First sidewall, 220-Limiting part, 221-Connecting part, 222-First bending part, 223-Second bending part

[0026] 300-Second Electronic Components

[0027] 400-Flexible Circuit Board

[0028] 500 - Insulation component. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0030] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of those features.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Please refer to Figures 1 to 11 This application discloses a circuit board assembly, which includes a circuit board 100, a shielding cover 200, a first electronic device, and a second electronic device 300.

[0033] The circuit board 100 provides a mounting base for other components of the circuit board assembly and performs the functions of the circuit system. The circuit board 100 has a first board surface 110, on which the first electronic device, the second electronic device 300, and the shielding cover 200 are all disposed. Specifically, the circuit board 100 may be a printed circuit board.

[0034] The shielding cover 200 is a core component in the circuit board assembly that limits the movement of the second electronic device 300. The shielding cover 200 is fixedly mounted on the first board surface 110 and covers the first electronic device to prevent electromagnetic interference. The shielding cover 200 is located on one side of the second electronic device 300 and contacts it in a first direction, thus enabling it to limit the movement of the second electronic device 300 in that direction. In other words, the shielding cover 200 serves a dual purpose in the circuit board assembly, allowing for more efficient use of its components.

[0035] In addition, it should be noted that the first direction is the arrangement direction of the second electronic device 300 and the shield 200 on the first plate surface 110.

[0036] The circuit board assembly disclosed in this application improves the structure of circuit board assemblies related to the relevant technology. By setting a shield 200 to contact the second electronic device 300 and making the shield 200 contact the second electronic device 300 in a first direction, the shield 200 can limit the second electronic device 300 in the first direction, so as to make full use of the shield 200 and avoid setting additional positioning members that need to be fixed on the circuit board 100 to limit the second electronic device 300. This structure can limit the second electronic device 300 without occupying additional board area of ​​the circuit board 100, thereby avoiding waste of board area of ​​the circuit board 100 and improving the utilization rate of board area of ​​the circuit board 100.

[0037] In a further technical solution, the shielding cover 200 may include a cover body 210 and a limiting part 220. The cover body 210 may be fixedly mounted on the first plate surface 110 and may cover the first electronic device to achieve electromagnetic shielding of the first electronic device. The limiting part 220 may be connected to the cover body 210, and the limiting part 220 may be at least partially higher than the surface of the cover body 210 facing away from the first plate surface 110. That is, the limiting part 220 protrudes from the surface of the cover body 210 facing away from the first plate surface 110, and the limiting part 220 may be used to limit the second electronic device 300 in a first direction.

[0038] In this structure, since the limiting part 220 can be at least partially higher than the surface of the cover body 210 facing away from the first plate 110, the limiting part 220 can contact the higher part of the second electronic device 300, thereby better limiting the second electronic device 300.

[0039] Of course, the cover body 210 can also be made to contact the second electronic device 300, so that the second electronic device 300 can be limited in the first direction by the cover body 210, so as to avoid the additional setting of the limiting part 220 and thus increase the manufacturing cost, thereby helping to save manufacturing costs.

[0040] Please refer to Figures 1 to 2 The cover body 210 and the limiting part 220 can be a separate structure. The limiting part 220 can include a connecting part 221 and a first bending part 222 connected together. The connecting part 221 can be fixed to the surface of the cover body 210 facing away from the first plate 110. The first bending part 222 can be bent in the direction facing away from the first plate 110 and can be used to limit the second electronic device 300 in the first direction. Of course, the end of the first bending part 222 facing away from the first plate 110 can be higher than the surface of the cover body 210 facing away from the first plate 110 to better limit the second electronic device 300.

[0041] To improve the reliability of the limiting fit between the limiting part 220 and the second electronic device 300, the extension direction of the first bending part 222 can be perpendicular to the extension direction of the connecting part 221. This facilitates the first bending part 222 to fit against the second electronic device 300, allowing for a larger contact area between the first bending part 222 and the second electronic device 300. This improves the reliability of the contact between the first bending part 222 and the second electronic device 300, thereby making the limiting fit between the limiting part 220 and the second electronic device 300 more reliable.

[0042] Furthermore, the connecting part 221 can be fixedly connected to the cover body 210 by welding, specifically, as shown in the example below. Figure 1 As shown, the connecting part 221 may have multiple welding points to fix the connecting part 221 to the surface of the cover body 210 facing away from the first plate 110 by spot welding. This connection method is simple to operate and easy to implement. Of course, the connecting part 221 can also be fixedly connected to the cover body 210 by adhesive bonding, and this embodiment does not limit this.

[0043] Please refer to Figures 4 to 7 The cover body 210 and the limiting part 220 can be an integral structure, and the limiting part 220 can be connected to the first side wall 212 of the cover body 210. The first side wall 212 can be adjacent to the limiting part 220 to facilitate the connection of the limiting part 220 to the first side wall 212 of the cover body 210. This structure eliminates the need to install the limiting part 220 onto the cover body 210, thereby simplifying the installation steps and improving installation efficiency.

[0044] In one embodiment, the first end of the limiting portion 220 may be bent from the end of the first sidewall 212 adjacent to the first plate surface 110 and may extend in a direction away from the first plate surface 110. The second end of the limiting portion 220 may be higher than the surface of the cover body 210 away from the first plate surface 110, so that the limiting portion 220 can contact the higher part of the second electronic device 300, thereby better limiting the second electronic device 300.

[0045] Optionally, the connected cover body 210 and the limiting part 220 can be formed by a bending process, which is highly efficient and cost-effective. Please refer to [reference needed]. Figures 4 to 7 The cover body 210 may have four sidewalls. The sidewall opposite the second electronic device 300 may be a first sidewall 212. Each of the four sidewalls of the cover body 210 can be formed by a first bending. The first sidewall 212 is connected to the limiting portion 220, and a second bending can be performed to make the limiting portion 220 at least partially higher than the surface of the cover body 210 facing away from the first plate 110, thereby better limiting the second electronic device 300 in the first direction. Furthermore, the second bending portion 223, described later, can be formed by a third bending to avoid scratching the second electronic device 300 during installation. Of course, the connected cover body 210 and limiting portion 220 can also be formed by an integral casting process; this embodiment does not limit this.

[0046] For details, please continue to refer to Figures 4 to 7 The four side walls can be connected to the bottom wall of the cover body 210, and the four side walls can be independent of each other. Each side wall can be formed by bending relative to the bottom wall of the cover body 210. This structure has the advantage of being easy to form. This method also facilitates the forming of the cover body 210. It should be noted that the embodiments of this application do not limit the number of side walls included in the cover body 210. Specifically, there can be three, five, or other numbers of side walls.

[0047] Among the available technical solutions, such as Figure 2 , Figure 4 , Figure 6 and Figure 7As shown, the limiting portion 220 may have a second bending portion 223 at its edge away from the cover body 210. The second bending portion 223 can be bent toward the side away from the second electronic device 300. That is, the second bending portion 223 can be bent into shape by the limiting portion 220 toward the side away from the second electronic device 300, thereby avoiding easy scratching of the second electronic device 300 during installation and thus preventing damage to the second electronic device 300. In addition, the edge of the limiting portion 220 away from the cover body 210 can be covered with an edge banding, or the edge of the limiting portion 220 away from the cover body 210 can be polished to prevent the edge of the limiting portion 220 away from the cover body 210 from being too sharp and easily scratching the second electronic device 300 during installation.

[0048] To further improve safety, the free end of the second bend 223 can be positioned opposite to the cover body 210, thereby minimizing the space occupied by the second bend 223 and reducing the risk that the free end of the second bend 223 may easily scratch engineers.

[0049] To improve the sealing performance of the cover body 210, please refer again. Figures 1 to 2 The cover body 210 may include a sealing flange 211 surrounding the cover opening. The sealing flange 211 can be sealed to the first plate surface 110. Specifically, the sealing flange 211 can be sealed to the first plate surface 110 by welding or bonding. This application embodiment does not limit the specific connection method between the sealing flange 211 and the first plate surface 110. In addition, this structure can prevent moisture, dust and other substances from entering the first electronic device, which is beneficial to improving the dustproof and waterproof capabilities of the circuit board assembly.

[0050] In a further technical solution, the sealing flange 211 can surround the inner side of the cover opening of the cover body 210, thereby avoiding the sealing flange 211 from interfering with the limiting part 220 and the limiting cooperation between the second electronic device 300.

[0051] Of course, the sealing flange 211 can also surround the outside of the cover opening of the cover body 210 to facilitate the connection between the sealing flange 211 and the first plate surface 110. At the same time, in this case, the sealing flange 211 can avoid the second electronic device 300, and the part of the limiting part 220 used to limit the second electronic device 300 (e.g., the first bending part 222) can protrude more from the side of the cover body 210 facing the second electronic device 300 relative to the sealing flange 211. In this way, when the limiting part 220 is in contact with the second electronic device 300, the sealing flange 211 can avoid contact with the second electronic device 300, so as to avoid interference between the sealing flange 211 and the second electronic device 300 and the limiting fit between the limiting part 220 and the second electronic device 300.

[0052] Meanwhile, this structure allows the cover body 210 and the second electronic device 300 to be spaced apart, and an installation gap can be formed between them. This installation gap can prevent the cover body 210 and the second electronic device 300 from contacting each other, thereby achieving insulation isolation between the cover body 210 and the second electronic device 300. This prevents the cover body 210 and the second electronic device 300 from being easily electrically connected, which would affect the normal operation of the second electronic device 300.

[0053] Optionally, such as Figure 1 and Figure 2 As shown, the cover body 210 can be formed by stretching, so that there will be no gaps between the side walls of the cover body 210, so as to prevent dust, moisture and other substances from entering the cover body 210 through the gaps and affecting the normal operation of the first electronic device in the cover body 210, thereby improving the dustproof and waterproof capabilities of the circuit board assembly.

[0054] In addition, in other embodiments, a sealed connection between the cover body 210 and the first plate surface 110 can also be achieved by applying sealant at the connection between the cover body 210 and the first plate surface 110.

[0055] Please refer to Figures 1 to 8 In an optional technical solution, the circuit board assembly may also include an insulating component 500. The insulating component 500 may be disposed between the shielding cover 200 and the second electronic device 300, and may insulate and isolate the shielding cover 200 and the second electronic device 300, thereby preventing easy electrical conduction between the shielding cover 200 and the second electronic device 300, which would affect the normal operation of the second electronic device 300.

[0056] In the case where the shielding cover 200 includes the cover body 210 and the limiting part 220, since the limiting part 220 is in contact with and limits the second electronic device 300, the insulating member 500 can be disposed between the limiting part 220 and the second electronic device 300 to insulate and isolate the limiting part 220 and the second electronic device 300.

[0057] Specifically, the insulating element 500 can be insulating ink, which can be applied to the surface of the shield 200 facing the second electronic device 300. When the shield 200 includes a shield body 210 and a limiting portion 220, the insulating ink can be applied to the surface of the limiting portion 220 facing the second electronic device 300. Of course, the insulating element 500 can also be insulating tape; the embodiments of this application do not limit the specific type of the insulating element 500.

[0058] Please refer to Figure 3 and Figures 9 to 11In this embodiment, the second electronic device 300 can be a camera module, and the circuit board assembly can further include a flexible circuit board 400. The flexible circuit board 400 can be connected to both the camera module and the circuit board 100 to achieve connection and electrical connection between the second electronic device 300 and the circuit board 100. Of course, the second electronic device 300 and the circuit board 100 can also be connected by soldering wires, and this embodiment does not limit this.

[0059] The flexible circuit board 400 and the shielding cover 200 can be respectively disposed on the opposite sides of the camera module along the first direction. In the specific working process, the flexible circuit board 400 can push the camera module away from the flexible circuit board 400 along the first direction, and make it easy for the camera module to approach the shielding cover 200 along the first direction. This structure allows the camera module to contact the shielding cover 200 after being pushed by the flexible circuit board 400, thereby minimizing the movement of the second electronic device 300 on the circuit board 100 along the first direction.

[0060] To better limit the movement of the second electronic device 300, such as Figure 11 As shown, there can be multiple shielding covers 200 and multiple first electronic devices. Multiple shielding covers 200 can be respectively placed over multiple first electronic devices. The multiple shielding covers 200 can be arranged around the camera module and can avoid the flexible circuit board 400 to prevent interference with the flexible circuit board 400 and thus affecting the connection between the second electronic device 300 and the circuit board 100. All multiple shielding covers 200 can contact the camera module to limit the camera module's position in the arrangement direction of each shielding cover 200 and the camera module.

[0061] In this structure, each shield 200 and the camera module are arranged in different directions on the circuit board 100, which can limit the camera module in multiple directions, thereby more effectively preventing the camera module from moving on the circuit board 100 and improving the reliability of limiting the camera module.

[0062] Based on the circuit board assembly disclosed in the embodiments of this application, the embodiments of this application further disclose an electronic device, which includes the circuit board assembly described in any of the embodiments above.

[0063] In this application example, the electronic device may be a mobile phone, tablet computer, smart wearable device, e-book reader, video game console, etc. The embodiments of this application do not limit the specific types of electronic devices.

[0064] The above embodiments of the present invention focus on describing the differences between the various embodiments. As long as the different optimization features of the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0065] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A circuit board assembly, characterized in that, Includes a circuit board (100), a shielding cover (200), a first electronic component, and a second electronic component (300); The circuit board (100) has a first board surface (110), the first electronic device and the second electronic device (300) are both disposed on the first board surface (110), the shield (200) is fixedly installed on the first board surface (110) and covers the first electronic device, and the shield (200) is located on one side of the second electronic device (300); The shield (200) includes a shield body (210) and a limiting part (220). The shield body (210) is fixedly installed on the first plate surface (110) and covers the first electronic device. The limiting part (220) is connected to the shield body (210). The limiting part (220) contacts the second electronic device (300) in a first direction to limit the second electronic device (300) in the first direction. The first direction is the arrangement direction of the second electronic device (300) and the shield (200) on the first plate surface (110). The cover body (210) and the limiting part (220) are an integral structure, and the limiting part (220) is connected to the first side wall (212) of the cover body (210), and the first side wall (212) is adjacent to the limiting part (220). The first end of the limiting part (220) bends from the end of the first sidewall (212) adjacent to the first plate surface (110) and extends in a direction away from the first plate surface (110). The second end of the limiting part (220) is higher than the surface of the cover body (210) away from the first plate surface (110).

2. The circuit board assembly according to any one of claims 1, characterized in that, The limiting portion (220) has a second bending portion (223) at the edge away from the cover body (210), and the second bending portion (223) bends toward the side away from the second electronic device (300).

3. The circuit board assembly according to any one of claims 1-2, characterized in that, The cover body (210) includes a sealing flange (211) surrounding the cover opening of the cover body (210), and the sealing flange (211) is sealed to the first plate surface (110).

4. The circuit board assembly according to claim 1, characterized in that, The circuit board assembly further includes an insulating element (500) disposed between the shield (200) and the second electronic device (300), and insulatingly isolating the shield (200) and the second electronic device (300).

5. The circuit board assembly according to claim 1, characterized in that, The second electronic device (300) is a camera module, and the circuit board assembly further includes a flexible circuit board (400). The flexible circuit board (400) is connected to the camera module and the circuit board (100) respectively, and the flexible circuit board (400) and the shielding cover (200) are respectively disposed on opposite sides of the camera module along the first direction.

6. The circuit board assembly according to claim 5, characterized in that, There are multiple shielding covers (200) and the first electronic device. The multiple shielding covers (200) are respectively covered on the multiple first electronic devices. The multiple shielding covers (200) are arranged around the camera module and avoid the flexible circuit board (400). The multiple shielding covers (200) are in contact with the camera module to limit the camera module in the arrangement direction of each shielding cover (200) and the camera module.

7. An electronic device, characterized in that, Includes the circuit board assembly as described in any one of claims 1-6.

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