Electronic device

Abstract

The embodiment of the utility model discloses an electronic device which comprises a shell, a metal decorating part, a main circuit board, a mounting bracket, a conductive part and a flexible circuit board, the metal decorating part is connected in a mounting clamping groove on the shell, the mounting bracket and the main circuit board are arranged in the shell, and the conductive part is arranged on the mounting bracket. The conductive part is formed in a first printing forming area, an arc-shaped printing forming area and a second printing forming area which are sequentially connected on the top surface and the outer side surface of the mounting bracket by adopting a PDS process, one end of the flexible circuit board is electrically connected with the conductive part, and the other end of the flexible circuit board is electrically connected with the main circuit board; therefore, static electricity generated on the metal decorating part is discharged and conducted to a grounding point of the main circuit board through the flexible circuit board. The grounding mode of the metal decorating part in the electronic device is simple, the number of parts is small, the assembly process is simplified, and the electrostatic protection effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of electronic product technology, specifically to an electronic device. Background Technology

[0002] Currently, many electronic products use metal decorative parts on their plastic casings in pursuit of aesthetics and high quality. However, they neglect the fact that these metal decorative parts need to be grounded. This can easily cause static electricity to be generated on the metal decorative parts, damaging the internal electronic components and leading to serious problems such as system crashes or even complete damage. Utility Model Content

[0003] In view of this, the present invention provides an electronic device with a simple grounding method, a small number of parts, simplified assembly process, and electrostatic protection.

[0004] This utility model embodiment provides an electronic device, the electronic device comprising:

[0005] The outer shell has an internal cavity, and the outer side of the outer shell has a mounting slot that communicates with the cavity;

[0006] Metal decorative parts are connected within the mounting slot;

[0007] The main circuit board is disposed within the cavity;

[0008] A mounting bracket is disposed within the cavity. The mounting bracket is provided with a first printing area, a second printing area, and an arc-shaped printing area. The first printing area is disposed on the top surface of the mounting bracket and near the edge. The second printing area is disposed on the outer surface of the mounting bracket. The arc-shaped printing area connects the first printing area and the second printing area.

[0009] A conductive portion is disposed on the first printing molding area, the second printing molding area, and the arc-shaped printing molding area;

[0010] A flexible circuit board is disposed on one side of the inner side of the mounting bracket. One end of the flexible circuit board is electrically connected to the conductive part located in the first printing and molding area, and the other end of the flexible circuit board is electrically connected to the main circuit board. The conductive part is used to discharge and conduct static electricity generated on the metal decorative part to the grounding point of the main circuit board through the flexible circuit board.

[0011] Optionally, the conductive portion includes a first conductive line, a second conductive line, and a connecting conductive line. The first conductive line is formed in the first printed molding area, the second conductive line is disposed in the second printed molding area, and the connecting conductive line is formed in the arc-shaped printed molding area with its two ends electrically connected to the first conductive line and the second conductive line, respectively. The first conductive line is electrically connected to the flexible circuit board.

[0012] Optionally, the outer casing is provided with a first mounting through hole connecting the mounting slot and the cavity, and the electronic device further includes an elastic conductive post, which is installed in the first mounting through hole, and the two ends of the elastic conductive post are electrically connected to the metal decorative part and the second conductive line, respectively.

[0013] Optionally, the material of the elastic conductive post is conductive silicone or conductive rubber.

[0014] Optionally, the inner side of the mounting bracket is provided with a receiving groove, a first clearance groove and a second clearance groove. The first clearance groove and the second clearance groove are respectively provided on the upper and lower sides of the receiving groove. The first clearance groove connects the receiving groove and the first printing and forming area, and the second clearance groove connects the receiving groove and the cavity.

[0015] Optionally, the flexible circuit board includes:

[0016] A first flexible part is fixed in the receiving groove, and a microphone and electronic components are connected to the first flexible part.

[0017] The second flexible part is bent and connected to one side of the first flexible part, and extends through the first clearance groove into the first printing molding area. The exposed copper area of ​​the second flexible part is connected above the first conductive line by conductive adhesive.

[0018] The third flexible part is connected to the other side of the first flexible part, and the third flexible part extends into the cavity through the second clearance groove and is electrically connected to the main circuit board.

[0019] Optionally, the second flexible portion and the first conductive line have a contoured structure, and the area of ​​the conductive adhesive is the same as the area of ​​the exposed copper region of the second flexible portion.

[0020] Optionally, a plurality of limiting blocks are provided on the inner side of the housing, and the plurality of limiting blocks are engaged with the outer side of the mounting bracket.

[0021] Optionally, one side of the mounting bracket is also connected to an abutment bracket extending toward the inner side of the cavity, and the outer side of the abutment bracket is provided with a snap-fit ​​portion.

[0022] The inner side of the outer shell is also provided with an annular limiting boss, the annular limiting boss is provided with a slot, the abutting bracket is installed on the annular limiting boss, the snap-fit ​​part is inserted into the slot, and a sound receiving channel communicating with the cavity is formed between the abutting bracket and the outer shell.

[0023] Optionally, the outer side of the mounting bracket further includes a first pickup hole and a second pickup hole, wherein a connecting through hole is provided between the first pickup hole and the receiving groove, and the second pickup hole is connected to the sound receiving channel.

[0024] Optionally, the housing further includes a first through hole and a second through hole communicating with the mounting slot, wherein the first pickup hole is disposed and communicates with the first through hole, and the second pickup hole is disposed and communicates with the second through hole.

[0025] Optionally, the first mounting through hole is disposed between the first through hole and the second through hole, the second conductive wire is located above the first pickup hole, and one end of the second conductive wire extends upward to connect with the connecting conductive wire, and the other end of the second conductive wire extends downward to connect with the elastic conductive post between the first pickup hole and the second pickup hole.

[0026] Optionally, the outer surface of the mounting bracket is configured as a curved surface that mimics the inner surface of the housing.

[0027] Optionally, the included angle between the first printing area and the second printing area is an acute angle.

[0028] Optionally, the housing and the mounting bracket are made of plastic or rubber.

[0029] The electronic device of this embodiment includes a housing, a metal decorative component, a main circuit board, a mounting bracket, a conductive part, and a flexible circuit board. The metal decorative component is connected to a mounting slot on the housing. The mounting bracket and the main circuit board are disposed inside the housing. The conductive part is formed using PDS technology within a first printed circuit area, an arc-shaped printed circuit area, and a second printed circuit area sequentially connected on the top and outer surfaces of the mounting bracket. One end of the flexible circuit board is electrically connected to the conductive part, and the other end of the flexible circuit board is electrically connected to the main circuit board, thereby discharging and conducting static electricity generated on the metal decorative component to the grounding point of the main circuit board through the flexible circuit board. This electronic device features a simple grounding method for the metal decorative component, a small number of parts, simplified assembly process, and provides electrostatic protection. Attached Figure Description

[0030] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0031] Figure 1 This is a schematic diagram of the structure of the electronic device according to an embodiment of the present invention;

[0032] Figure 2 This is an exploded schematic diagram of the electronic device according to an embodiment of the present invention;

[0033] Figure 3 This is a first-view structural schematic diagram of the mounting bracket and the abutment bracket according to an embodiment of the present utility model;

[0034] Figure 4 This is a second-view structural schematic diagram of the mounting bracket and the abutment bracket according to an embodiment of the present utility model;

[0035] Figure 5 This is a schematic diagram of the outer shell of an embodiment of the present utility model;

[0036] Figure 6 This is a cross-sectional view of the electronic device according to an embodiment of the present utility model;

[0037] Figure 7 This is a partial schematic diagram of the outer shell of an embodiment of the present utility model.

[0038] Figure label:

[0039] 1-Outer shell; 11-Cavity; 12-Mounting slot; 13-First mounting through hole; 14-Limiting block; 15-Annular limiting boss; 151-Slot; 152-Annular baffle; 16-First through hole; 17-Second through hole; 18-Third through hole; 2-Metal decorative part; 4-Mounting bracket; 41-Arc-shaped printing area; 42-Accommodation groove; 43-First clearance groove; 44-Second clearance groove; 45-First pickup hole; 46-Second pickup hole ; 461-Horizontal pickup hole; 462-Vertical pickup hole; 47-Connecting through hole; 48-Third pickup hole; 5-Conductive part; 51-First conductive wire; 52-Second conductive wire; 53-Connecting conductive wire; 6-Flexible circuit board; 61-First flexible part; 611-Microphone; 612-Electronic component; 62-Second flexible part; 63-Third flexible part; 7-Elastic conductive post; 8-Abutting bracket; 81-Snap-fit ​​part; 82-Reception channel. Detailed Implementation

[0040] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0041] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0042] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0044] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0045] Figure 1 and Figure 2 This is a schematic diagram of the electronic device in this embodiment. The electronic device can be a 3C consumer electronics product such as headphones, watches, headphones, TWS earphones, or wristbands. The electronic device includes a housing 1, a metal decorative part 2, a mounting bracket 4, a conductive part 5, a flexible circuit board 6, and a main circuit board, such as... Figure 1 and Figure 2 As shown. The outer casing 1 has a cavity 11 inside, which is used to house the mounting bracket 4, conductive part 5, flexible circuit board 6 and main circuit board, etc.

[0046] like Figure 5 As shown, the outer side of the outer shell 1 is provided with a mounting slot 12, which can communicate with the interior of the cavity 11. The metal decorative part 2 is connected in the mounting slot 12, which can improve the aesthetics of the electronic device and meet other quality requirements, such as acoustic performance. When the electronic device is an earphone, the mounting slot 12 can be a sound vent, and the metal decorative part 2 can be a dustproof mesh; in this case, the mounting slot 12 is used to connect the cavity 11 with the external environment, which facilitates the inflow and outflow of external air, balances the internal pressure of the earphone, brings better listening effect, and improves the acoustic performance of the earphone; the metal decorative part 2, as a dustproof mesh, can isolate impurities in the external environment outside the dustproof mesh, preventing impurities from entering the cavity and affecting the acoustic performance of the earphone.

[0047] like Figure 1 As shown, the mounting bracket 4 is disposed inside the cavity 11, and is fixedly connected to the outer shell 1 at the corresponding position of the metal decorative part 2. Optionally, the outer surface of the mounting bracket 4 is set as a curved surface that conforms to the inner surface of the outer shell 1, so that the mounting bracket 4 can be fitted and fixedly connected to the outer shell 1, thereby improving the stability of the connection.

[0048] like Figure 3 and Figure 4 As shown, the mounting bracket 4 is provided with a first printed area, a second printed area, and an arc-shaped printed area 41. The first printed area is located on the top surface of the mounting bracket 4 near its edge, the second printed area is located on the outer surface of the mounting bracket 4, and the arc-shaped printed area 41 connects the first printed area and the second printed area. The outer surface of the mounting bracket 4 refers to the surface in contact with the outer casing 1. The first printed area, the second printed area, and the arc-shaped printed area 41 are areas printed using Printed Directly Structured (PDS) technology. The arc-shaped printed area 41 connects the top surface and the outer surface, avoiding the stress caused by the right-angle bend of the printed structure. The first printed area is located on the top surface of the mounting bracket 4 near its edge, so that the conductive part 5 connected to the printed structure thereon is located at the edge of the cavity 11, avoiding impact on the internal components of the electronic device and reducing the size of the electronic device. In this embodiment, the angle between the first printed area and the second printed area is an acute angle, meaning that the angle formed by extending the plane is an acute angle. The planes containing the first and second printing areas are connected by an arc-shaped printing area 41, which improves the conductivity of the conductive part 5 after it is formed thereon.

[0049] The conductive part 5 is formed using Printed Directly Structured (PDS) technology within the first PDS area, the second PDS area, and the curved PDS area 41 of the mounting bracket 4. For example... Figure 1 and Figure 2 As shown, the flexible circuit board 6 is disposed on one side of the inner surface of the mounting bracket 4. One end of the flexible circuit board 6 is electrically connected to the conductive part 5 located in the first printed circuit area (i.e., the top surface of the mounting bracket 4), and the other end of the flexible circuit board 6 is electrically connected to the main circuit board. The conductive part 5 located in the second printed circuit area (i.e., the outer surface of the mounting bracket 4) is electrically connected to the metal decorative part 2. When the electronic device is in use or under test, the static electricity generated by the metal decorative part 2 is discharged and conducted to the grounding point of the main circuit board through the conductive part 5 and the flexible circuit board 6, thereby conducting it to the ground and preventing damage to other electronic components in the electronic device, thus improving the safety of the electronic device.

[0050] like Figure 3As shown, the conductive part 5 includes a first conductive line 51, a second conductive line 52, and a connecting conductive line 53. The first conductive line 51 is formed within a first printed circuit area (i.e., the top surface of the mounting bracket 4 and near its edge) for electrical connection to the flexible circuit board 6. The second conductive line 52 is disposed within a second printed circuit area (i.e., the outer surface of the mounting bracket 4) for electrical connection to the metal decorative part 2. The connecting conductive line 53 is formed within an arc-shaped printed circuit area 41, with both ends electrically connected to the first conductive line 51 and the second conductive line 52, respectively. The connecting conductive line 53 being formed within the arc-shaped printed circuit area 41 avoids sharp corners at the connection point of the first conductive line 51 and the second conductive line 52, improving the overall conductivity of the conductive part 5. Sharp corners in the conductive part 5 are prone to wear and reduced conductivity.

[0051] The electronic device provided in this application uses PDS process to form conductive parts on the mounting bracket, which makes the connection between the conductive parts and the mounting bracket more stable and less likely to fall off. At the same time, it does not occupy the internal space of the electronic device, which is conducive to the miniaturization of the electronic device.

[0052] In other alternative embodiments, the conductive part 5 can also be formed on the mounting bracket 4 using laser direct forming (LDS) technology.

[0053] Furthermore, the outer casing 1 is provided with a first mounting through hole 13, such as... Figure 2 and Figure 5 As shown. The first mounting through hole 13 is located within the area surrounded by the mounting slot 12, and the first mounting through hole 13 can connect the mounting slot 12 and the cavity 11. The electronic device also includes a flexible conductive post 7, such as Figure 2 As shown, the elastic conductive post 7 is installed in the first mounting through hole 13. The position of the first mounting through hole 13 is opposite to the second conductive wire 52 on the mounting bracket 4 fixed inside the outer casing 1, so that the two ends of the elastic conductive post 7 installed in the first mounting through hole 13 can be electrically connected to the metal decorative part 2 and the conductive part 5 (i.e., the second conductive wire 52) respectively, thereby realizing the discharge of the metal decorative part 2.

[0054] Preferably, the length of the elastic conductive post 7 is not less than the first mounting through hole 13. Specifically, in this embodiment, the length of the elastic conductive post 7 is slightly longer than the depth of the first mounting through hole 13, so that after the mounting bracket 4, the metal decorative part 2, and the outer shell 1 are fixedly connected, they can press down on both ends of the elastic conductive post 7 to compress it, thereby ensuring that the elastic conductive post 7, the metal decorative part 2, and the conductive part 5 always maintain electrical connection. The material of the elastic conductive post 7 is conductive silicone or conductive rubber. Conductive silicone and conductive rubber are made by uniformly distributing conductive particles such as silver-plated glass, silver-plated aluminum, and silver in silicone or rubber, and achieving good conductivity by applying pressure to make the conductive particles contact. In other implementations, the connection between the metal decorative part 2 and the conductive part 5 can also be achieved by other electrical connection methods, such as conductive adhesive bonding.

[0055] In this embodiment, the first mounting through hole 13 is located near the center of the mounting slot 12. The second conductive wire 52 extends on the outer surface of the mounting bracket 4 according to the position of the first mounting through hole 13, so that the end of the second conductive wire 52 is directly opposite the first mounting through hole 13, thereby enabling the elastic conductive post 7 to be electrically connected to the second conductive wire 52.

[0056] like Figure 1 and Figure 2 As shown, the flexible circuit board 6 includes a first flexible portion 61, a second flexible portion 62, and a third flexible portion 63 that are interconnected. The second flexible portion 62 and the third flexible portion 63 are respectively connected to the upper and lower sides of the first flexible portion 61. The second flexible portion 62 is bent and connected to one side of the first flexible portion 61, extending above the top surface of the mounting bracket 4. The first flexible portion 61 is fixed to the inner side of the mounting bracket 4. The second flexible portion 62 is electrically connected to the first conductive wire 51. The third flexible portion 63 extends along the bottom surface of the cavity 11 and is electrically connected to the main circuit board, thereby achieving electrical connection between the conductive portion 5 and the main circuit board. This allows static electricity on the metal decorative part 2 to be conducted to the grounding point of the main circuit board, improving the safety performance of the electronic device. The arrangement of the first flexible portion 61, the second flexible portion 62, and the third flexible portion 63 does not affect the arrangement of other electronic components within the electronic device.

[0057] like Figure 2As shown, the inner side of the mounting bracket 4 is provided with a receiving groove 42, a first clearance groove 43, and a second clearance groove 44. The receiving groove 42 is located near the first printed circuit area, while the first clearance groove 43 and the second clearance groove 44 are respectively located on the upper and lower sides of the receiving groove 42. The first clearance groove 43 connects the receiving groove 42 and the first printed circuit area, and the second clearance groove 44 connects the receiving groove 42 and the cavity 11. The first flexible part 61 is fixed within the receiving groove 42, and the second flexible part 62 extends through the first clearance groove 43 into the first printed circuit area. The exposed copper area of ​​the second flexible part 62 is electrically connected above the first conductive line 51. The third flexible part 63 extends through the second clearance groove 44 into the cavity 11 and is electrically connected to the main circuit board. The first clearance groove 43 and the second clearance groove 44 ensure that when the flexible circuit board 6 is integrally connected inside the housing 1, it can maintain a flat or rounded transition during installation, avoiding problems such as stress concentration. The first flexible part 61 can be adhered to the receiving groove 42 using adhesive or pressure-sensitive adhesive. The exposed copper area of ​​the second flexible part 62 can be connected above the first conductive line 51 by laser welding or conductive adhesive bonding. The third flexible part 63 can be adhered to the cavity 11 using adhesive or pressure-sensitive adhesive.

[0058] The shape of the receiving groove 42 is adapted to the shape of the first flexible part 61 to better fix the first flexible part 61. In this embodiment, the receiving groove 42 and the first flexible part 61 are rectangular structures. A microphone 611 and electronic components 612 are connected to the first flexible part 61 to realize specific electronic functions, such as collecting and processing sound in devices like telephones and watches for voice command recognition and calls. The second flexible part 62 and the first conductive line 51 have a contoured structure, and the area of ​​the conductive adhesive is the same as the area of ​​the exposed copper region of the second flexible part 62, thereby improving the dual stability of the physical and electrical connection between the second flexible part 62 and the first conductive line 51. Optionally, the second flexible part 62 and the first conductive line 51 are rectangular.

[0059] like Figure 2 As shown, a plurality of limiting blocks 14 are provided on the inner side of the outer casing 1. These limiting blocks 14 engage with the outer side of the mounting bracket 4, thereby fixing the mounting bracket 4 to the outer casing 1. The mounting slot 12 is located within the area enclosed by the multiple limiting blocks 14, allowing the metal decorative piece 2 to be electrically connected to the conductive part 5 on the mounting bracket 4. In this embodiment, the multiple limiting blocks 14 are distributed on the four outer sides of the mounting bracket 4 to clamp and fix the mounting bracket 4 from four directions. The shape and size of the limiting blocks 14 are not limited, as long as they satisfy the clamping and engaging requirements.

[0060] One side of the mounting bracket 4 is also connected to an abutment bracket 8 extending toward the inside of the cavity 11. The abutment bracket 8 has a protruding locking part 81, such as... Figure 3 and Figure 4As shown. The inner side of the outer casing 1 is also provided with an annular limiting boss 15, and the annular limiting boss 15 is provided with a slot 151, as shown. Figure 2 As shown. The annular limiting boss 15 is located on one side of the limiting block 14. After the mounting bracket 4 is fixed by the limiting block 14, the abutting bracket 8 is installed on the annular limiting boss 15, and the snap-fit ​​part 81 is inserted into the snap-fit ​​groove 151, thereby further improving the stability of the mounting bracket 4 connection. Figure 7 As shown, an annular limiting boss 15 has an annular baffle 152 protruding upward from its outer periphery. The annular baffle 152 surrounds the outer circumference of the abutment bracket 8, thereby further improving the stability of the connection of the mounting bracket 4. Wherein, as... Figure 6 As shown, a sound receiving channel 82 is formed between the abutment bracket 8 and the outer shell 1. The sound receiving channel 82 is connected to the cavity 11, which ensures the communication quality and reliability of the electronic device.

[0061] like Figure 5 As shown, the outer casing 1 also includes a first through hole 16 and a second through hole 17. The first through hole 16 and the second through hole 17 are disposed in the area enclosed by the mounting slot 12. Both the first through hole 16 and the second through hole 17 can connect the mounting slot 12 and the cavity 11, thereby enabling the electronic device to be connected inside and outside.

[0062] like Figure 3 and Figure 4 As shown, the outer side of the mounting bracket 4 also includes a first pickup hole 45 and a second pickup hole 46. The first pickup hole 45 is connected to the receiving groove 42 through a connecting through hole 47, and the first pickup hole 45 is opposite to and connected to the first through hole 16, so that the microphone 611 can pick up sound or air through the receiving groove 42, the first pickup hole 45, and the first through hole 16. Among them, the first pickup hole 45 has an elongated structure, which can increase the sound pickup area and improve the sound pickup effect. The second pickup hole 46 is connected to the sound receiving channel 82, and the second pickup hole 46 is opposite to and connected to the second through hole 17, which facilitates the inflow and outflow of external air and balances the internal pressure of the electronic device.

[0063] In this embodiment, the second pickup hole 46 includes a transverse pickup hole 461 and a longitudinal pickup hole 462 that are interconnected, such as... Figure 6 As shown, the horizontal pickup hole 461 is connected to the second through hole 17, and the vertical pickup hole 462 is connected to the sound receiving channel 82, thereby facilitating the inflow and outflow of external air and balancing the internal pressure of the electronic device. The arrangement of the second pickup hole 46 allows the pressure near the center of the electronic device to be quickly balanced, improving the stability of the electronic device.

[0064] The mounting bracket 4 can be configured with a through third pickup hole 48 as needed. A third through hole 18 is provided on the outer casing 1 at the position corresponding to the third pickup hole 48, which can further improve the inflow and outflow of air and balance the internal pressure of the electronic device.

[0065] In this embodiment, the first mounting through hole 13 is disposed between the first through hole 16 and the second through hole 17, so that both ends of the elastic conductive post 7 abut against the middle positions of the mounting bracket 4 and the metal decorative part 2, respectively, to avoid uneven stress and warping, which would affect the installation effect and the stability of the electrical connection. The second conductive wire 52 is located above the first pickup hole 45, and one end of the second conductive wire 52 extends upward to connect with the connecting conductive wire 53, while the other end of the second conductive wire 52 extends downward to the space between the first pickup hole 45 and the second pickup hole 46 to connect with the elastic conductive post 7.

[0066] To further improve the safety performance of electronic devices, the outer casing 1 and mounting bracket 4 of electronic devices can be made of insulating materials such as plastic and rubber.

[0067] The electronic device of this embodiment includes a housing, a metal decorative component, a main circuit board, a mounting bracket, a conductive part, and a flexible circuit board. The metal decorative component is connected to a mounting slot on the housing. The mounting bracket and the main circuit board are disposed inside the housing. The conductive part is formed using PDS technology within a first printed circuit area, an arc-shaped printed circuit area, and a second printed circuit area sequentially connected on the top and outer surfaces of the mounting bracket. One end of the flexible circuit board is electrically connected to the conductive part, and the other end of the flexible circuit board is electrically connected to the main circuit board, thereby discharging and conducting static electricity generated on the metal decorative component to the grounding point of the main circuit board through the flexible circuit board. This electronic device features a simple grounding method for the metal decorative component, a small number of parts, simplified assembly process, and provides electrostatic discharge protection.

[0068] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electronic device, characterized in that, The electronic device includes: The outer shell (1) has a cavity (11) inside, and the outer side of the outer shell (1) is provided with a mounting slot (12) communicating with the cavity (11); Metal decorative piece (2) is connected in the mounting slot (12); The main circuit board is disposed inside the cavity (11); A mounting bracket (4) is disposed inside the cavity (11). The mounting bracket (4) is provided with a first printing area, a second printing area and an arc-shaped printing area (41). The first printing area is disposed on the top surface of the mounting bracket (4) and near the edge. The second printing area is disposed on the outer side surface of the mounting bracket (4). The arc-shaped printing area (41) connects the first printing area and the second printing area. Conductive parts (5) are disposed on the first printing molding area, the second printing molding area and the arc-shaped printing molding area (41); A flexible circuit board (6) is disposed on one side of the inner side of the mounting bracket (4). One end of the flexible circuit board (6) is electrically connected to the conductive part (5) located in the first printing and molding area, and the other end of the flexible circuit board (6) is electrically connected to the main circuit board.

2. The electronic device according to claim 1, characterized in that, The conductive part (5) includes a first conductive line (51), a second conductive line (52) and a connecting conductive line (53). The first conductive line (51) is formed in the first printed molding area, the second conductive line (52) is disposed in the second printed molding area, and the connecting conductive line (53) is formed in the arc-shaped printed molding area (41) and its two ends are electrically connected to the first conductive line (51) and the second conductive line (52) respectively. The first conductive line (51) is electrically connected to the flexible circuit board (6).

3. The electronic device according to claim 2, characterized in that, The outer casing (1) is provided with a first mounting through hole (13) connecting the mounting slot (12) and the cavity (11). The electronic device also includes an elastic conductive post (7), which is installed in the first mounting through hole (13). The two ends of the elastic conductive post (7) are electrically connected to the metal decorative part (2) and the second conductive line (52), respectively.

4. The electronic device according to claim 3, characterized in that, The material of the elastic conductive post (7) is conductive silicone or conductive rubber.

5. The electronic device according to claim 3, characterized in that, The inner side of the mounting bracket (4) is provided with a receiving groove (42), a first clearance groove (43) and a second clearance groove (44). The first clearance groove (43) and the second clearance groove (44) are respectively provided on the upper and lower sides of the receiving groove (42). The first clearance groove (43) connects the receiving groove (42) and the first printing molding area, and the second clearance groove (44) connects the receiving groove (42) and the cavity (11).

6. The electronic device according to claim 5, characterized in that, The flexible circuit board (6) includes: A first flexible part (61) is fixed in the receiving groove (42), and a microphone (611) and electronic components (612) are connected to the first flexible part (61); The second flexible part (62) is bent and connected to one side of the first flexible part (61), and extends through the first clearance groove (43) into the first printing molding area. The exposed copper area of ​​the second flexible part (62) is connected above the first conductive line (51) by conductive adhesive. The third flexible part (63) is connected to the other side of the first flexible part (61). The third flexible part (63) extends through the second clearance groove (44) into the cavity (11) and is electrically connected to the main circuit board.

7. The electronic device according to claim 6, characterized in that, The second flexible part (62) and the first conductive line (51) are contoured structures, and the area of ​​the conductive adhesive is the same as the area of ​​the exposed copper region of the second flexible part (62).

8. The electronic device according to claim 5, characterized in that, The inner side of the outer shell (1) is provided with a plurality of limiting blocks (14), and the plurality of limiting blocks (14) are snapped onto the outer side of the mounting bracket (4).

9. The electronic device according to claim 5, characterized in that, The mounting bracket (4) is also connected to an abutment bracket (8) extending toward the inside of the cavity (11) on one side, and the outer side of the abutment bracket (8) is provided with a snap-fit ​​part (81). The inner side of the outer shell (1) is also provided with an annular limiting boss (15), the annular limiting boss (15) is provided with a slot (151), the abutting bracket (8) is installed on the annular limiting boss (15), the snap-fit ​​part (81) is inserted into the slot (151), and a sound receiving channel (82) communicating with the cavity (11) is formed between the abutting bracket (8) and the outer shell (1).

10. The electronic device according to claim 9, characterized in that, The outer side of the mounting bracket (4) also includes a first pickup hole (45) and a second pickup hole (46). A connecting through hole (47) is provided between the first pickup hole (45) and the receiving groove (42), and the second pickup hole (46) is connected to the sound receiving channel (82).

11. The electronic device according to claim 10, characterized in that, The outer casing (1) further includes a first through hole (16) and a second through hole (17) communicating with the mounting slot (12), wherein the first pickup hole (45) is configured to communicate with the first through hole (16) and the second pickup hole (46) is configured to communicate with the second through hole (17).

12. The electronic device according to claim 11, characterized in that, The first mounting through hole (13) is disposed between the first through hole (16) and the second through hole (17). The second conductive wire (52) is located above the first pickup hole (45), and one end of the second conductive wire (52) extends upward to connect with the connecting conductive wire (53), and the other end of the second conductive wire (52) extends downward to connect with the elastic conductive post (7) between the first pickup hole (45) and the second pickup hole (46).

13. The electronic device according to claim 1, characterized in that, The outer side of the mounting bracket (4) is configured as a curved surface that mimics the inner side of the outer shell (1).

14. The electronic device according to claim 1, characterized in that, The angle between the first printing area and the second printing area is an acute angle.

15. The electronic device according to claim 1, characterized in that, The outer shell (1) and the mounting bracket (4) are made of plastic or rubber.

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