Electronic equipment

Abstract

The embodiment of the invention discloses an electronic device which comprises a shell, a metal connecting piece, a main control board, a fixing support, a conductive layer, an elastic conductive connector and a flexible circuit board, the metal connecting piece is connected in an installation groove in the shell, and the fixing support and the main control board are arranged in the shell. The conductive layer is formed on the top face, the connecting face and the outer side face of the fixing support through the PDS technology, the two ends of the elastic conductive connector are electrically connected with the metal connecting piece and the conductive layer respectively, one end of the flexible circuit board is electrically connected with the conductive layer, and the other end of the flexible circuit board is electrically connected with the main control board. Therefore, static electricity generated on the metal connecting piece is discharged and conducted to a grounding point of the main control board through the flexible circuit board. The grounding mode of the metal connecting piece in the electronic equipment is simple, the number of parts is small, the assembly process is simplified, and the electrostatic protection effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic products, and in particular to an electronic device. Background Art

[0002] At present, many electronic products use metal connectors on plastic shells for decoration in pursuit of beauty and high quality, but ignore the problem that metal connectors need to be grounded, which can easily cause static electricity to damage internal electronic devices, leading to serious problems such as freezing or even damage. Summary of the invention

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

[0004] An embodiment of the present invention provides an electronic device, the electronic device comprising:

[0005] A shell body, wherein a cavity is provided inside, and an installation groove and a first installation through hole are provided on the outside of the shell body, wherein the first installation through hole is arranged in the installation groove and communicates with the installation groove and the cavity;

[0006] A metal connector connected in the mounting groove;

[0007] A main control board is arranged in the cavity;

[0008] A fixed bracket is arranged in the cavity, and the top surface and the outer side surface of the fixed bracket are connected via a connecting surface;

[0009] The conductive layer is arranged on the top surface, the connecting surface and the outer surface of the fixing bracket;

[0010] An elastic conductive joint is installed in the first mounting through hole, two ends of the elastic conductive joint are electrically connected to the metal connector and the conductive layer respectively, and the length of the elastic conductive joint is not less than the depth of the first mounting through hole;

[0011] The flexible circuit board is arranged on one side of the inner side of the fixed bracket, one end of the flexible circuit board is electrically connected to the conductive layer located on the top surface of the fixed bracket, and the other end of the flexible circuit board is electrically connected to the main control board. The static electricity generated on the metal connecting part is discharged and conducted to the grounding point of the main control board in sequence through the elastic conductive joint, the conductive layer and the flexible circuit board.

[0012] Optionally, a first printing and forming area, a second printing and forming area and an arc-shaped printing and forming area are provided on the fixed bracket, the first printing and forming area is provided on the top surface of the fixed bracket and close to the edge position, the second printing and forming area is provided on the outer surface of the fixed bracket, the arc-shaped printing and forming area is provided on the connecting surface, and the arc-shaped printing and forming area connects the first printing and forming area and the second printing and forming area.

[0013] Optionally, the conductive layer includes a first conductive part, a second conductive part and a connecting conductive part, the first conductive part is formed in the first printing molding area, the second conductive part is arranged in the second printing molding area, the connecting conductive part is formed in the arc-shaped printing molding area and its two ends are electrically connected to the first conductive part and the second conductive part respectively, and the first conductive part is electrically connected to the flexible circuit board.

[0014] Optionally, the material of the elastic conductive joint is conductive silicone or conductive rubber.

[0015] Optionally, the inner side of the fixed bracket is provided with a accommodating groove, a first avoidance groove and a second avoidance groove, the first avoidance groove and the second avoidance groove are respectively arranged on the upper and lower sides of the accommodating groove, the first avoidance groove connects the accommodating groove and the first printing and molding area, and the second avoidance groove connects the accommodating groove and the cavity.

[0016] Optionally, the flexible circuit board includes:

[0017] A first flexible portion is fixed in the accommodating groove, and a microphone and electronic components are connected to the first flexible portion;

[0018] The second flexible portion is connected to a side of the first flexible portion by bending, and extends to the first printing and forming area through the first avoidance groove, and the copper exposed area of ​​the second flexible portion is connected to the top of the first conductive portion by conductive glue;

[0019] The third flexible portion is connected to the other side of the first flexible portion, and the third flexible portion extends into the cavity through the second avoidance groove and is electrically connected to the main control board.

[0020] Optionally, the second flexible portion and the first conductive portion are in a conformal structure, and the area of ​​the conductive glue is the same as the area of ​​the copper exposed region of the second flexible portion.

[0021] Optionally, a plurality of limit blocks are arranged on the inner side of the shell, and the plurality of limit blocks are clamped on the outer side of the fixing bracket.

[0022] Optionally, the mounting groove is located in an area surrounded by a plurality of limiting blocks.

[0023] Optionally, one side of the fixed bracket is further connected to an abutment bracket extending toward the inner side of the cavity, and a clamping portion is convexly provided on the outer side surface of the abutment bracket;

[0024] An annular limiting boss is also provided on the inner side of the shell, and a clamping groove is provided on the annular limiting boss. The abutting bracket is installed on the annular limiting boss, and the clamping part is inserted into the clamping groove. A sound receiving channel connected to the cavity is formed between the abutting bracket and the shell.

[0025] Optionally, the annular limiting boss is arranged on one side of the plurality of limiting blocks close to the bottom of the cavity, and an annular baffle is protruding upward from the outer circumference of the annular limiting boss, and the annular baffle surrounds the circumferential outer side of the abutment bracket.

[0026] Optionally, the outer side surface of the fixing bracket further includes a first sound pickup hole and a second sound pickup hole, a connecting through hole is provided between the first sound pickup hole and the accommodating groove, and the second sound pickup hole is connected to the sound receiving channel.

[0027] Optionally, the shell further includes a first through hole and a second through hole communicated with the mounting groove, the first sound pickup hole is arranged opposite to and communicated with the first through hole, and the second sound pickup hole is arranged opposite to and communicated with the second through hole.

[0028] Optionally, the second sound pickup hole includes a transverse sound pickup hole and a longitudinal sound pickup hole which are connected to each other, the transverse sound pickup hole is arranged opposite to and connected to the second through hole, and the longitudinal sound pickup hole is connected to the sound receiving channel.

[0029] Optionally, the first mounting through hole is arranged between the first through hole and the second through hole, the second conductive part is located above the first sound pickup hole, and one end of the second conductive part extends upward to be connected to the connecting conductive part, and the other end of the second conductive part extends downward to between the first sound pickup hole and the second sound pickup hole to be connected to the elastic conductive joint.

[0030] Optionally, the outer side surface of the fixing bracket is configured as a curved surface that conforms to the inner side surface of the shell.

[0031] Optionally, the angle between the first printing and forming area and the second printing and forming area is an acute angle.

[0032] Optionally, the shell and the fixing bracket are made of plastic or rubber.

[0033] Optionally, the conductive layer is formed on the fixed support by using a printing directly structured (PDS) technology or a laser direct structuring (LDS) technology.

[0034] Optionally, the length of the elastic conductive joint is greater than the depth of the first mounting through hole.

[0035] The electronic device of the embodiment of the present invention comprises a housing, a metal connector, a main control board, a fixed bracket, a conductive layer, an elastic conductive joint and a flexible circuit board, wherein the metal connector is connected to a mounting groove on the housing, the fixed bracket and the main control board are arranged in the housing, the conductive layer is formed on the top surface, the connecting surface and the outer surface of the fixed bracket by using a PDS process, the two ends of the elastic conductive joint are electrically connected to the metal connector and the conductive layer respectively, one end of the flexible circuit board is electrically connected to the conductive layer, and the other end of the flexible circuit board is electrically connected to the main control board, so that the static electricity generated on the metal connector is discharged and conducted to the grounding point of the main control board through the flexible circuit board. The grounding method of the metal connector in the electronic device is simple, the number of parts is small, the assembly process is simplified and the function of static electricity protection is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0037] Figure 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;

[0038] Figure 2 is an exploded schematic diagram of an electronic device according to an embodiment of the present invention;

[0039] Figure 3 is a schematic structural diagram of a fixing bracket and an abutting bracket from a first perspective according to an embodiment of the present invention;

[0040] Figure 4 is a schematic structural diagram of a fixing bracket and an abutting bracket from a second viewing angle according to an embodiment of the present invention;

[0041] Figure 5 is a schematic structural diagram of a housing according to an embodiment of the present invention;

[0042] Figure 6 is a cross-sectional view of an electronic device according to an embodiment of the present invention;

[0043] Figure 7 It is a partial schematic diagram of a shell according to an embodiment of the present invention.

[0044] Reference numerals:

[0045] 1-shell; 11-cavity; 12-installation slot; 13-first installation 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 connector; 4-fixing bracket; 41-arc-shaped printing molding area; 42-accommodating slot; 43-first avoidance slot; 44-second avoidance slot; 45-first pickup hole; 46-second pickup hole; 461-lateral Sound pickup hole; 462-longitudinal sound pickup hole; 47-connecting through hole; 48-third sound pickup hole; 49-connecting surface; 5-conductive layer; 51-first conductive part; 52-second conductive part; 53-connecting conductive part; 6-flexible circuit board; 61-first flexible part; 611-microphone; 612-electronic components; 62-second flexible part; 63-third flexible part; 7-elastic conductive joint; 8-abutting bracket; 81-clamping part; 82-sound receiving channel. DETAILED DESCRIPTION

[0046] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0047] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0048] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0050] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0051] Figure 1 and Figure 2 is a schematic diagram of the electronic device of this embodiment. The electronic device can be a 3C electronic consumer product such as earphones, watches, headphones, TWS earphones, bracelets, etc. Among them, the electronic device includes a housing 1, a metal connector 2, a fixing bracket 4, a conductive layer 5, a flexible circuit board 6 and a main control board, such as Figure 1 and Figure 2 The housing 1 is provided with a cavity 11 inside, and the cavity 11 is used to place the fixing bracket 4, the conductive layer 5, the flexible circuit board 6 and the main control board.

[0052] like Figure 5 As shown, the outer side of the shell 1 is provided with a mounting groove 12, and the mounting groove 12 can be connected to the inside of the cavity 11. The metal connector 2 is connected in the mounting groove 12, which can improve the aesthetics of the electronic device and other quality requirements, such as acoustic performance. When the electronic device is an earphone, the mounting groove 12 can be a sound leakage hole, and the metal connector 2 is a dustproof net; at this time, the mounting groove 12 is used to connect the cavity 11 with the external environment, facilitate the inflow and outflow of external air, balance the internal pressure of the earphone, bring better auditory effects, and improve the acoustic performance of the earphone; the metal connector 2 acts as a dustproof net to isolate impurities in the external environment outside the dustproof net, and prevent impurities from entering the cavity and affecting the acoustic performance of the earphone.

[0053] like Figure 1 As shown, the fixing bracket 4 is disposed in the cavity 11, and the fixing bracket 4 is relatively fixedly connected to the housing 1 at positions corresponding to the metal connector 2. Optionally, the outer side surface of the fixing bracket 4 is configured as a curved surface that conforms to the inner side surface of the housing 1, so that the fixing bracket 4 can be fitted and fixedly connected to the housing 1, thereby improving the stability of the connection.

[0054] like Figure 3 and Figure 4As shown, the fixed bracket 4 is provided with a first printing and forming area, a second printing and forming area and an arc-shaped printing and forming area 41, the first printing and forming area is arranged on the top surface of the fixed bracket 4 and close to the edge position, the second printing and forming area is arranged on the outer side of the fixed bracket 4, and the arc-shaped printing and forming area 41 is arranged on the connecting surface 49. The connecting surface 49 connects the top surface and the outer side surface of the fixed bracket 4. The arc-shaped printing and forming area 41 connects the first printing and forming area and the second printing and forming area. Among them, the outer side surface of the fixed bracket 4 refers to the surface in contact with the shell 1. The first printing and forming area, the second printing and forming area and the arc-shaped printing and forming area 41 are areas printed and formed by printing and forming technology (Printing Directly Structured, PDS). The arc-shaped printing and forming area 41 connects the top surface and the outer side surface to avoid the influence of the stress generated by the right-angle turn of the printing and forming structure. The first printing and forming area is arranged on the top surface of the fixed bracket 4 and close to the edge position, so that the conductive layer 5 connected to the printing and forming structure thereon is located at the edge position of the cavity 11, avoiding the influence on the internal components of the electronic device and reducing the size of the electronic device. In this embodiment, the angle between the first printing forming area and the second printing forming area is an acute angle, which means that the angle after the plane in which they are located is extended is an acute angle. The planes where the first printing forming area and the second printing forming area are located are transitionally connected by the arc-shaped printing forming area 41, thereby improving the conductive performance of the conductive layer 5 after it is formed thereon.

[0055] The conductive layer 5 is formed in the first printing forming area, the second printing forming area and the arc-shaped printing forming area 41 of the fixed bracket 4 by using the printing forming technology (Printing Directly Structured, PDS). Figure 1 and Figure 2 As shown, the flexible circuit board 6 is arranged on one side of the inner side of the fixing bracket 4, one end of the flexible circuit board 6 is electrically connected to the conductive layer 5 located in the first printing and forming area (i.e., the top surface of the fixing bracket 4), the other end of the flexible circuit board 6 is electrically connected to the main control board, and the conductive layer 5 located in the second printing and forming area (i.e., the outer side of the fixing bracket 4) is electrically connected to the metal connector 2. When the electronic device is in use or tested, the static electricity generated by the metal connector 2 is discharged and conducted to the grounding point of the main control board through the conductive layer 5 and the flexible circuit board 6, and then introduced into the earth, so that it will not cause damage to other electronic devices in the electronic device, thereby improving the safety of the electronic device.

[0056] like Figure 3As shown, the conductive layer 5 includes a first conductive part 51, a second conductive part 52 and a connecting conductive part 53. The first conductive part 51 is formed in the first printing molding area (i.e., the top surface of the fixed bracket 4 and close to the edge position) for electrically connecting with the flexible circuit board 6; the second conductive part 52 is arranged in the second printing molding area (i.e., the outer side of the fixed bracket 4) for electrically connecting with the metal connector 2; the connecting conductive part 53 is formed in the arc-shaped printing molding area 41 and its two ends are electrically connected to the first conductive part 51 and the second conductive part 52 respectively. The connecting conductive part 53 is formed in the arc-shaped printing molding area 41, which can avoid the sharp corners at the connection between the first conductive part 51 and the second conductive part 52, thereby improving the overall conductive performance of the conductive layer 5. The conductive layer 5 with sharp corners is prone to wear and reduces the conductive performance.

[0057] The electronic device provided in the embodiment of the present application uses the PDS process to form a conductive layer on a fixed bracket, so that the connection between the conductive layer and the fixed bracket is more stable and not easy to fall off. At the same time, it does not need to occupy the internal space of the electronic device, which is conducive to the miniaturization of the electronic device.

[0058] In other optional embodiments, the conductive layer 5 may also be formed on the fixing bracket 4 by using Laser Direct Structuring (LDS).

[0059] Furthermore, the housing 1 is provided with a first mounting through hole 13, such as Figure 2 and Figure 5 The first mounting through hole 13 is located in the area surrounded by the mounting groove 12, and the first mounting through hole 13 can connect the mounting groove 12 and the cavity 11. The electronic device also includes an elastic conductive connector 7, such as Figure 2 As shown, the elastic conductive joint 7 is installed in the first mounting through hole 13. The position of the first mounting through hole 13 is arranged opposite to the second conductive part 52 on the fixing bracket 4 fixed in the housing 1, so that the two ends of the elastic conductive joint 7 installed in the first mounting through hole 13 can be electrically connected to the metal connector 2 and the conductive layer 5 (i.e., the second conductive part 52) ​​respectively, thereby realizing the discharge of the metal connector 2.

[0060] Preferably, the length of the elastic conductive joint 7 is not less than that of the first mounting through hole 13, and specifically in the present embodiment, the length of the elastic conductive joint 7 is slightly longer than the depth of the first mounting through hole 13, so that after the fixing bracket 4 and the metal connector 2 are fixedly connected to the shell 1, the two can press the two ends of the elastic conductive joint 7 to compress it, so as to ensure that the elastic conductive joint 7 is always electrically connected to the metal connector 2 and the conductive layer 5. The material of the elastic conductive joint 7 is conductive silicone or conductive rubber. Conductive silicone and conductive rubber are conductive particles such as glass silver-plated, aluminum silver-plated, and silver evenly distributed in silicon and rubber, and the conductive particles are brought into contact by pressure to achieve good conductive properties. In other implementations, the connection method of the metal connector 2 and the conductive layer 5 can also be electrically connected in other ways, such as conductive adhesive bonding.

[0061] In this embodiment, the first mounting through hole 13 is located near the center of the mounting groove 12. The second conductive portion 52 is extended on the outer side of the fixing bracket 4 according to the position of the first mounting through hole 13, so that the end of the second conductive portion 52 is arranged opposite to the first mounting through hole 13, so that the elastic conductive joint 7 can be electrically connected to the second conductive portion 52.

[0062] like Figure 1 and Figure 2 As shown, the flexible circuit board 6 includes a first flexible part 61, a second flexible part 62 and a third flexible part 63 which are connected to each other. The second flexible part 62 and the third flexible part 63 are respectively connected to the upper and lower sides of 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 to the top surface of the fixed bracket 4. The first flexible part 61 is fixed on the inner side of the fixed bracket 4, the second flexible part 62 is electrically connected to the first conductive part 51, and the third flexible part 63 extends along the bottom surface of the cavity 11 to be electrically connected to the main control board, thereby realizing the electrical connection between the conductive layer 5 and the main control board, so that the static electricity on the metal connector 2 can be conducted to the grounding point of the main control board, thereby improving the safety performance of the electronic device. The arrangement of the first flexible part 61, the second flexible part 62 and the third flexible part 63 does not affect the arrangement of other electronic devices in the electronic device.

[0063] like Figure 2As shown, the inner side of the fixed bracket 4 is provided with a receiving groove 42, a first avoidance groove 43 and a second avoidance groove 44. Among them, the receiving groove 42 is arranged near the first printing and molding area, the first avoidance groove 43 and the second avoidance groove 44 are arranged on the upper and lower sides of the receiving groove 42 respectively, the first avoidance groove 43 connects the receiving groove 42 and the first printing and molding area, and the second avoidance groove 44 connects the receiving groove 42 and the cavity 11. Among them, the first flexible part 61 is fixed in the receiving groove 42, the second flexible part 62 extends into the first printing and molding area through the first avoidance groove 43, and the copper exposed area of ​​the second flexible part 62 is electrically connected above the first conductive part 51. The third flexible part 63 extends into the cavity 11 through the second avoidance groove 44 and is electrically connected to the main control board. The first avoidance groove 43 and the second avoidance groove 44 enable the flexible circuit board 6 to be installed in a flat or arc transition when it is connected as a whole inside the housing 1, avoiding problems such as stress concentration. The first flexible portion 61 can be adhered to the receiving groove 42 by glue or pressure-sensitive adhesive. The copper-exposed area of ​​the second flexible portion 62 can be connected to the first conductive portion 51 by laser welding or conductive adhesive bonding. The third flexible portion 63 can be adhered to the cavity 11 by glue or pressure-sensitive adhesive.

[0064] Among them, the shape of the accommodating groove 42 is adapted to the shape of the first flexible part 61, so that the first flexible part 61 can be better fixed. In this embodiment, the accommodating groove 42 and the first flexible part 61 are rectangular structures. A microphone 611 and an electronic component 612 are connected to the first flexible part 61 to realize specific electronic functions, such as collecting and processing sounds in devices such as phones and watches for voice command recognition, calls, etc. The second flexible part 62 and the first conductive part 51 are contoured structures, and the area of ​​the conductive glue is the same as the area of ​​the exposed copper area of ​​the second flexible part 62, thereby improving the dual stability of the physical connection and electrical connection between the second flexible part 62 and the first conductive part 51. Optionally, the second flexible part 62 and the first conductive part 51 are rectangular.

[0065] like Figure 2 As shown, a plurality of limit blocks 14 are arranged on the inner side of the housing 1, and the plurality of limit blocks 14 are clamped on the outer side of the fixing bracket 4, so as to fix the fixing bracket 4 on the housing 1. Among them, the mounting groove 12 is located in the area surrounded by the plurality of limit blocks 14, so that the metal connector 2 is electrically connected to the conductive layer 5 on the fixing bracket 4. In this embodiment, the plurality of limit blocks 14 are arranged on the outer side of the four sides of the fixing bracket 4 to clamp and fix the fixing bracket 4 from four directions. The shape and size of the limit blocks 14 are not limited, as long as they meet the requirements of clamping and clamping.

[0066] One side of the fixed bracket 4 is also connected to an abutment bracket 8 extending toward the inner side of the cavity 11, and a clamping portion 81 is convexly provided on the abutment bracket 8. Figure 3 and Figure 4The inner side of the housing 1 is also provided with an annular limiting boss 15, and the annular limiting boss 15 is provided with a slot 151, as shown in FIG. Figure 2 The annular limiting boss 15 is located on one side of the limiting block 14, and is specifically arranged on one side of the plurality of limiting blocks 14 close to the bottom of the cavity 11. After the fixing bracket 4 is fixed by the limiting block 14, the abutting bracket 8 is installed on the annular limiting boss 15, and the clamping portion 81 is inserted into the clamping groove 151, thereby further improving the stability of the connection of the fixing bracket 4.

[0067] like Figure 7 As shown, an annular baffle 152 is protruded upwardly from the outer circumference of the annular limiting boss 15, and the annular baffle 152 surrounds the outer circumferential side of the abutment bracket 8, thereby further improving the stability of the connection of the fixed bracket 4. Figure 6 As shown, a sound receiving channel 82 is formed between the abutting bracket 8 and the housing 1 , and the sound receiving channel 82 is communicated with the cavity 11 , thereby ensuring the communication quality and reliability of the electronic device.

[0068] like Figure 5 As shown, the housing 1 further includes a first through hole 16 and a second through hole 17, which are arranged in the area surrounded by the mounting groove 12. The first through hole 16 and the second through hole 17 can both connect the mounting groove 12 and the cavity 11, thereby connecting the inside and outside of the electronic device.

[0069] like Figure 3 and Figure 4 As shown, the outer side of the fixing bracket 4 also includes a first sound pickup hole 45 and a second sound pickup hole 46. The first sound pickup hole 45 is connected to the accommodating groove 42 through a connecting through hole 47, and the first sound pickup hole 45 is connected to the first through hole 16 in a relative arrangement, so that the microphone 611 can pick up sound or air through the accommodating groove 42, the first sound pickup hole 45, and the first through hole 16. Among them, the first sound pickup hole 45 is a long strip structure, which can increase the sound pickup area and improve the sound pickup effect. The second sound pickup hole 46 is connected to the sound receiving channel 82, and the second sound pickup hole 46 is connected to the second through hole 17 in a relative arrangement, which facilitates the inflow and outflow of external air and balances the internal pressure of the electronic device.

[0070] In this embodiment, the second sound pickup hole 46 includes a transverse sound pickup hole 461 and a longitudinal sound pickup hole 462 which are connected to each other. Figure 6 As shown. The transverse sound pickup hole 461 is arranged opposite to and communicates with the second through hole 17, and the longitudinal sound pickup hole 462 is communicated with 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 sound pickup hole 46 allows the pressure of the electronic device near the middle position to be quickly balanced, thereby improving the stability of the electronic device.

[0071] Among them, the fixing bracket 4 can be provided with a through third sound pickup hole 48 as required, and the shell 1 is provided with a third through hole 18 at a position corresponding to the third sound pickup hole 48, which can further improve the inflow and outflow of air and balance the internal pressure of the electronic device.

[0072] 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 the two ends of the elastic conductive joint 7 are respectively in contact with the fixing bracket 4 and the middle position of the metal connector 2, so as to avoid warping due to uneven force, which affects the installation effect and the stability of the electrical connection. The second conductive portion 52 is located above the first sound pickup hole 45, and one end of the second conductive portion 52 extends upward to connect with the connecting conductive portion 53, and the other end of the second conductive portion 52 extends downward to between the first sound pickup hole 45 and the second sound pickup hole 46 to connect with the elastic conductive joint 7.

[0073] In order to further improve the safety performance of the electronic device, the housing 1 and the fixing bracket 4 of the electronic device can be made of insulating materials such as plastic and rubber.

[0074] The electronic device of this embodiment includes a housing, a metal connector, a main control board, a fixed bracket, a conductive layer, an elastic conductive joint and a flexible circuit board. The metal connector is connected to the mounting groove on the housing, the fixed bracket and the main control board are arranged in the housing, the conductive layer is formed on the top surface, the connecting surface and the outer surface of the fixed bracket by using the PDS process, the two ends of the elastic conductive joint are electrically connected to the metal connector and the conductive layer respectively, one end of the flexible circuit board is electrically connected to the conductive layer, and the other end of the flexible circuit board is electrically connected to the main control board, so that the static electricity generated on the metal connector is discharged and conducted to the grounding point of the main control board through the flexible circuit board. The grounding method of the metal connector in the electronic device is simple, the number of parts is small, the assembly process is simplified and the function of static electricity protection is achieved.

[0075] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electronic device, characterized in that: The electronic device comprises: A shell (1) is provided with a cavity (11) inside, and an outer side of the shell (1) is provided with a mounting groove (12) and a first mounting through hole (13), wherein the first mounting through hole (13) is arranged in the mounting groove (12) and communicates with the mounting groove (12) and the cavity (11); A metal connecting piece (2) connected in the mounting groove (12); A main control board, arranged in the cavity (11); A fixed bracket (4) is arranged in the cavity (11), and the top surface and the outer side surface of the fixed bracket (4) are connected via a connecting surface (49); A conductive layer (5) is arranged on the top surface, the connecting surface (49) and the outer surface of the fixing bracket (4); An elastic conductive joint (7) is installed in the first mounting through hole (13), two ends of the elastic conductive joint (7) are electrically connected to the metal connecting piece (2) and the conductive layer (5) respectively, and the length of the elastic conductive joint (7) is not less than the depth of the first mounting through hole (13); A flexible circuit board (6) is arranged on one side of the inner side of the fixing bracket (4), one end of the flexible circuit board (6) is electrically connected to the conductive layer (5) located on the top surface of the fixing bracket (4), and the other end of the flexible circuit board (6) is electrically connected to the main control board, and the static electricity generated on the metal connecting piece (2) is discharged and conducted to the grounding point of the main control board in sequence through the elastic conductive joint (7), the conductive layer (5) and the flexible circuit board (6).

2. The electronic device according to claim 1, characterized in that: The fixed bracket (4) is provided with a first printing and forming area, a second printing and forming area and an arc-shaped printing and forming area (41); the first printing and forming area is provided on the top surface of the fixed bracket (4) and close to the edge position; the second printing and forming area is provided on the outer surface of the fixed bracket (4); the arc-shaped printing and forming area (41) is provided on the connecting surface (49); and the arc-shaped printing and forming area (41) connects the first printing and forming area and the second printing and forming area.

3. The electronic device according to claim 2, characterized in that: The conductive layer (5) comprises a first conductive part (51), a second conductive part (52) and a connecting conductive part (53); the first conductive part (51) is formed in the first printing forming area; the second conductive part (52) is arranged in the second printing forming area; the connecting conductive part (53) is formed in the arc-shaped printing forming area (41) and its two ends are electrically connected to the first conductive part (51) and the second conductive part (52) respectively; the first conductive part (51) is electrically connected to the flexible circuit board (6).

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

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

6. The electronic device according to claim 5, characterized in that: The flexible circuit board (6) comprises: A first flexible portion (61) is fixed in the accommodating groove (42), and a microphone (611) and an electronic component (612) are connected to the first flexible portion (61); A second flexible portion (62) is bent and connected to one side of the first flexible portion (61), and extends through the first avoidance groove (43) to the first printing and molding area, and the copper exposed area of ​​the second flexible portion (62) is connected to the top of the first conductive portion (51) by conductive glue; The third flexible portion (63) is connected to the other side of the first flexible portion (61), and the third flexible portion (63) extends through the second avoidance groove (44) into the cavity (11) to be electrically connected to the main control board.

7. The electronic device according to claim 6, characterized in that: The second flexible portion (62) and the first conductive portion (51) are in a conformal structure, and the area of ​​the conductive glue is the same as the area of ​​the copper exposed region of the second flexible portion (62).

8. The electronic device according to claim 5, characterized in that: A plurality of limit blocks (14) are arranged on the inner side of the shell (1), and the plurality of limit blocks (14) are clamped on the outer side of the fixing bracket (4).

9. The electronic device according to claim 8, characterized in that: The installation groove (12) is located in an area surrounded by a plurality of the limiting blocks (14).

10. The electronic device according to claim 8, characterized in that: One side of the fixing bracket (4) is also connected to an abutment bracket (8) extending toward the inner side of the cavity (11), and the outer side surface of the abutment bracket (8) is convexly provided with a clamping portion (81); An annular limiting boss (15) is also provided on the inner side of the shell (1), and the annular limiting boss (15) is provided with a clamping groove (151). The abutting bracket (8) is mounted on the annular limiting boss (15), and the clamping portion (81) is inserted into the clamping groove (151). A sound receiving channel (82) communicating with the cavity (11) is formed between the abutting bracket (8) and the shell (1).

11. The electronic device according to claim 10, characterized in that: The annular limiting boss (15) is arranged on one side of the plurality of limiting blocks (14) close to the bottom of the cavity (11), and an annular baffle (152) is protruding upward from the outer circumference of the annular limiting boss (15), and the annular baffle (152) surrounds the circumferential outer side of the abutting bracket (8).

12. The electronic device according to claim 10, characterized in that: The outer side surface of the fixing bracket (4) further comprises a first sound pickup hole (45) and a second sound pickup hole (46); a connecting through hole (47) is provided between the first sound pickup hole (45) and the accommodating groove (42); and the second sound pickup hole (46) is connected to the sound receiving channel (82).

13. The electronic device according to claim 12, characterized in that: The housing (1) further comprises a first through hole (16) and a second through hole (17) which are in communication with the mounting groove (12); the first sound pickup hole (45) is arranged in communication with the first through hole (16) in a relative manner; and the second sound pickup hole (46) is arranged in communication with the second through hole (17) in a relative manner.

14. The electronic device according to claim 13, characterized in that: The second sound pickup hole (46) comprises a transverse sound pickup hole (461) and a longitudinal sound pickup hole (462) which are connected to each other; the transverse sound pickup hole (461) is arranged opposite to and connected to the second through hole (17); and the longitudinal sound pickup hole (462) is connected to the sound receiving channel (82).

15. The electronic device according to claim 13, characterized in that: The first mounting through hole (13) is arranged between the first through hole (16) and the second through hole (17); the second conductive portion (52) is located above the first sound pickup hole (45); one end of the second conductive portion (52) extends upward to be connected to the connecting conductive portion (53); the other end of the second conductive portion (52) extends downward to between the first sound pickup hole (45) and the second sound pickup hole (46) to be connected to the elastic conductive joint (7).

16. The electronic device according to any one of claims 1 to 15, characterized in that: The outer side surface of the fixing bracket (4) is arranged as a curved surface conforming to the inner side surface of the shell (1).

17. The electronic device according to claim 2, characterized in that: The angle between the first printing and forming area and the second printing and forming area is an acute angle.

18. The electronic device according to any one of claims 1 to 15, characterized in that: The shell (1) and the fixing bracket (4) are made of plastic or rubber.

19. The electronic device according to any one of claims 1 to 15, characterized in that: The conductive layer (5) is formed on the fixed support (4) by using a printing directly structured (PDS) technology or a laser direct structuring (LDS) technology.

20. The electronic device according to any one of claims 1 to 15, characterized in that: The length of the elastic conductive joint (7) is greater than the depth of the first mounting through hole (13).

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