An electronic device

Abstract

The embodiment of the application 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 joint and a flexible circuit board, the metal connecting piece is connected in a mounting groove on the shell, the fixing support and the main control board are arranged in the shell, the conductive layer is formed on the top surface, the connecting surface and the outer side surface of the fixing support by adopting a PDS process, the two ends of the elastic conductive joint 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, so that 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 device is simple, the number of parts is small, the assembly process is simplified, and the effect of static electricity protection is achieved.

Description

TECHNICAL FIELD

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

[0002] At present, in order to pursue beauty and high quality, many electronic products use metal connecting pieces for decoration on the plastic shell, but the problem of grounding of the metal connecting pieces is ignored, which easily causes the metal connecting pieces to generate static electricity and damage internal electronic devices, thereby causing serious problems such as freezing and damage. SUMMARY

[0003] Therefore, the electronic device provided by the embodiments of the present application has the advantages of simple grounding mode, less parts, simplified assembly process and the effect of static electricity protection.

[0004] The electronic device provided by the embodiments of the present application comprises:

[0005] The shell is internally provided with a cavity, and the outer side of the shell is provided with a mounting groove and a first mounting through hole.

[0006] The metal connecting piece is connected in the mounting groove.

[0007] The main control board is arranged in the cavity.

[0008] The fixing support is arranged in the cavity, and the top surface and the outer side surface of the fixing support are connected through a connecting surface.

[0009] The conductive layer is arranged on the top surface, the connecting surface and the outer side surface of the fixing support.

[0010] The elastic conductive connector is arranged in the first mounting through hole, and the two ends of the elastic conductive connector are electrically connected with the metal connecting piece and the conductive layer respectively.

[0011] The flexible circuit board is arranged on one side of the inner side surface of the fixing support, one end of the flexible circuit board is electrically connected with the conductive layer arranged on the top surface of the fixing support, and the other end of the flexible circuit board is electrically connected with the main control board.

[0012] Optionally, the fixing support is provided with a first printed forming area, a second printed forming area and an arc-shaped printed forming area.

[0013] Optionally, the conductive layer comprises a first conductive part, a second conductive part and a connecting conductive part, the first conductive part is formed in the first printing forming area, the second conductive part is arranged in the second printing forming area, the connecting conductive part is formed in the arc-shaped printing forming area and is electrically connected with the first conductive part and the second conductive part at two ends respectively, and the first conductive part is electrically connected with the flexible circuit board.

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

[0015] Optionally, the inner side of the fixing support is provided with a containing groove, a first avoiding groove and a second avoiding groove, the first avoiding groove and the second avoiding groove are arranged on the upper side and the lower side of the containing groove respectively, the first avoiding groove communicates the containing groove and the first printing forming area, and the second avoiding groove communicates the containing groove and the cavity.

[0016] Optionally, the flexible circuit board comprises:

[0017] a first flexible part fixed in the containing groove, the first flexible part being connected with the microphone and the electronic components;

[0018] a second flexible part connected with one side of the first flexible part, the second flexible part extending to the first printing forming area through the first avoiding groove, and a copper exposed area of the second flexible part being connected above the first conductive part through the conductive glue;

[0019] a third flexible part connected with the other side of the first flexible part, the third flexible part extending to the cavity through the second avoiding groove and being electrically connected with the main control board.

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

[0021] Optionally, the inner side of the shell is provided with a plurality of limiting blocks, and the plurality of limiting blocks are clamped on the outer side of the fixing support.

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

[0023] Optionally, one side of the fixing support is further connected with an abutting support extending towards the inner side of the cavity, and the outer side of the abutting support is provided with a clamping part;

[0024] The inner side of the shell is further provided with an annular limiting boss, the annular limiting boss is provided with a clamping groove, the abutting support is mounted on the annular limiting boss, the clamping part is inserted into the clamping groove, and a sound collecting channel communicating with the cavity is formed between the abutting support and the shell.

[0025] Optionally, a ring-shaped limiting boss is arranged on one side of the plurality of limiting blocks close to the bottom of the cavity, and a ring-shaped baffle is upwardly arranged on the outer periphery of the ring-shaped limiting boss, and the ring-shaped baffle surrounds the outer periphery of the abutting support.

[0026] Optionally, the outer side surface of the fixing support further comprises a first sound pickup hole and a second sound pickup hole, and a connecting through hole is arranged between the first sound pickup hole and the accommodating groove, and the second sound pickup hole is in communication with the sound collecting channel.

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

[0028] Optionally, the second sound pickup hole comprises a transverse sound pickup hole and a longitudinal sound pickup hole in communication with each other, the transverse sound pickup hole is arranged opposite to the second through hole in communication, and the longitudinal sound pickup hole is in communication with the sound collecting 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, one end of the second conductive part extends upward to be connected with the connecting conductive part, and the other end of the second conductive part extends downward to be connected with the elastic conductive joint between the first sound pickup hole and the second sound pickup hole.

[0030] Optionally, the outer side surface of the fixing support is arranged as a curved surface which is shaped according to the inner side surface of the shell.

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

[0032] Optionally, the materials of the shell and the fixing support are plastic or rubber.

[0033] Optionally, the conductive layer is formed on the fixing 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 application comprises a shell, a metal connecting piece, a master control board, a fixing support, a conductive layer, an elastic conductive joint and a flexible circuit board, the metal connecting piece is connected in a mounting groove on the shell, the fixing support and the master control board are arranged in the shell, the conductive layer is formed on the top surface, the connecting surface and the outer side surface of the fixing support by adopting a PDS process, the two ends of the elastic conductive joint 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 master control board, so that the static electricity generated on the metal connecting piece is discharged and conducted to the grounding point of the master control board through the flexible circuit board. The grounding mode of the metal connecting piece in the electronic device is simple, the number of parts is small, the assembly process is simplified and the effect of static electricity protection is realized. BRIEF DESCRIPTION OF DRAWINGS

[0036] The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments of the present application taken in conjunction with the accompanying drawings, in which:

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

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

[0039] Figure 3 is a structural schematic diagram of a fixing support and an abutting support in a first perspective of an embodiment of the present application;

[0040] Figure 4 is a structural schematic diagram of a fixing support and an abutting support in a second perspective of an embodiment of the present application;

[0041] Figure 5 is a structural schematic diagram of a shell of an embodiment of the present application;

[0042] Figure 6 is a sectional view of an electronic device of an embodiment of the present application;

[0043] Figure 7 is a partial schematic diagram of a shell of an embodiment of the present application.

[0044] Reference Signs:

[0045] 1 - shell; 11 - cavity; 12 - mounting groove; 13 - first mounting through hole; 14 - limiting block; 15 - annular limiting boss; 151 - clamping groove; 152 - annular baffle; 16 - first through hole; 17 - second through hole; 18 - third through hole; 2 - metal connecting piece; 4 - fixed support; 41 - arc-shaped printing forming area; 42 - accommodating groove; 43 - first avoiding groove; 44 - second avoiding groove; 45 - first pickup hole; 46 - second pickup hole; 461 - transverse pickup hole; 462 - longitudinal pickup hole; 47 - connecting through hole; 48 - third 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 component; 62 - second flexible part; 63 - third flexible part; 7 - elastic conductive connector; 8 - abutting support; 81 - clamping part; 82 - sound receiving channel. DETAILED DESCRIPTION

[0046] The present application is described in detail below based on examples, but the present application is not limited to only these examples. In the following detailed description of the present application, some specific details are described in detail. The present application can also be fully understood without the description of these details. In order not to obscure the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0047] In addition, those skilled in the art should understand that the drawings provided herein are for illustrative purposes only and the drawings are not necessarily drawn to scale.

[0048] Unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] Unless the context clearly requires otherwise, the terms "including", "containing", and the like in the entire application should be interpreted as inclusive rather than exclusive or exhaustive; that is, as "including but not limited to".

[0050] In the description of the present application, it should be understood that the terms "first", "second" and the like are only for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise stated, the meaning of "multiple" is two or more.

[0051] Figure 1 and Figure 2 is a schematic diagram of an electronic device of the present embodiment. The electronic device can be a headset, a watch, a headset, a TWS headset, a bracelet, and the like 3C electronic consumer products. Among them, the electronic device includes a shell 1, a metal connecting piece 2, a fixed support 4, a conductive layer 5, a flexible circuit board 6 and a main control board, as shown in Figure 1 and Figure 2 The shell 1 is internally provided with a cavity 11, and the cavity 11 is used to place the fixed support 4, the conductive layer 5, the flexible circuit board 6 and the main control board and the like.

[0052] As shown in Figure 5 The outer side of the shell 1 is provided with a mounting groove 12, and the mounting groove 12 can be in communication with the inside of the cavity 11. The metal connecting piece 2 is connected in the mounting groove 12, which can improve the appearance and other quality requirements of the electronic device, such as acoustic performance. When the electronic device is a headset, the mounting groove 12 can be a sound hole, and the metal connecting piece 2 is a dust screen; At this time, the mounting groove 12 is used to communicate the cavity 11 with the external environment, so as to facilitate the inflow and outflow of external air, balance the internal pressure of the headset, bring better auditory effect, and improve the acoustic performance of the headset; The metal connecting piece 2 as a dust screen can isolate the impurities in the external environment outside the dust screen, so as to avoid the impurities entering the cavity and affecting the acoustic performance of the headset.

[0053] As shown in Figure 1 The fixed support 4 is arranged in the cavity 11, and the fixed support 4 is relatively fixedly connected at the position corresponding to the shell 1 and the metal connecting piece 2. Optionally, the outer side surface of the fixed support 4 is provided as a curved surface profiled with the inner side surface of the shell 1, so that the fixed support 4 can be fixedly connected with the shell 1, and the stability of the connection is improved.

[0054] As shown in Figure 3 and Figure 4As shown, the fixed support 4 is provided with a first printing structured area, a second printing structured area and an arc-shaped printing structured area 41. The first printing structured area is arranged on the top surface of the fixed support 4 and close to the edge position. The second printing structured area is arranged on the outer side surface of the fixed support 4. The arc-shaped printing structured 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 support 4. The arc-shaped printing structured area 41 connects the first printing structured area and the second printing structured area. The outer side surface of the fixed support 4 refers to the surface in contact with the shell 1. The first printing structured area, the second printing structured area and the arc-shaped printing structured area 41 are areas printed by printing directly structured (PDS) technology. The arc-shaped printing structured area 41 connects the top surface and the outer side surface, avoiding the influence of stress generated by the right-angle transition of the printing structured structure. The first printing structured area is arranged on the top surface of the fixed support 4 and close to the edge position, so that the conductive layer 5 connected with the printing structured structure thereon is located at the edge position of the cavity 11, avoiding the influence on the internal devices of the electronic device and reducing the size of the electronic device. In this embodiment, the included angle between the first printing structured area and the second printing structured area is an acute angle, which refers to the included angle after the plane extension is an acute angle. The planes where the first printing structured area and the second printing structured area are located are connected through the arc-shaped printing structured area 41, improving the conductivity of the conductive layer 5 after being formed thereon.

[0055] The conductive layer 5 is formed in the first printing structured area, the second printing structured area and the arc-shaped printing structured area 41 of the fixed support 4 by printing directly structured (PDS) technology. As shown in Figure 1 and Figure 2 As shown, the flexible circuit board 6 is arranged on one side of the inner side surface of the fixed support 4. One end of the flexible circuit board 6 is electrically connected with the conductive layer 5 located in the first printing structured area (i.e. the top surface of the fixed support 4). The other end of the flexible circuit board 6 is electrically connected with the main control board. The conductive layer 5 located in the second printing structured area (i.e. the outer side surface of the fixed support 4) is electrically connected with the metal connecting piece 2. When the electronic device is in use or test, the static electricity generated by the metal connecting piece 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, so as to be introduced into the ground, avoiding damaging other electronic devices in the electronic device and improving the safety of the electronic device.

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

[0057] The electronic device provided by the embodiment of the present application shapes the conductive layer on the fixed support by the PDS process, which makes the connection between the conductive layer and the fixed support more stable and less likely to fall off, and 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 can also be shaped on the fixed support 4 by the laser direct shaping technology (Laser Direct Structuring, LDS).

[0059] Further, the shell 1 is provided with a first mounting through hole 13, as shown in 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 communicate the mounting groove 12 and the cavity 11. The electronic device further includes an elastic conductive connector 7, as shown in Figure 2 The elastic conductive connector 7 is mounted in the first mounting through hole 13. The first mounting through hole 13 is arranged opposite to the second conductive part 52 on the fixed support 4 in the shell 1, so that the two ends of the elastic conductive connector 7 mounted in the first mounting through hole 13 can be electrically connected with the metal connecting piece 2 and the conductive layer 5 (i.e. the second conductive part 52) respectively, thereby realizing the discharge of the metal connecting piece 2.

[0060] Preferably, the length of the elastic conductive connector 7 is not less than the depth of the first mounting hole 13, and in the embodiment, the length of the elastic conductive connector 7 is slightly longer than the depth of the first mounting hole 13, so that after the fixing support 4, the metal connecting piece 2 and the shell 1 are fixedly connected, the two can press the two ends of the elastic conductive connector 7 to compress it, so as to ensure that the elastic conductive connector 7 and the metal connecting piece 2 and the conductive layer 5 are always in electrical connection. The material of the elastic conductive connector 7 is conductive silicone or conductive rubber. The conductive silicone or conductive rubber is to uniformly distribute conductive particles such as silver-coated glass, silver-coated aluminum and silver in silicone or rubber, and to make the conductive particles contact through pressure to achieve good conductivity. In other implementation manners, the connection mode of the metal connecting piece 2 and the conductive layer 5 can also be other electrically connected modes, such as conductive adhesive bonding.

[0061] In the embodiment, the first mounting hole 13 is located at a position close to the center of the mounting groove 12. The second conductive part 52 is arranged to extend on the outer side of the fixing support 4 according to the position of the first mounting hole 13, so that the end of the second conductive part 52 is arranged opposite to the first mounting hole 13, so that the elastic conductive connector 7 can be electrically connected with the second conductive part 52.

[0062] As shown in Figure 1 and Figure 2 , the flexible circuit board 6 includes a first flexible part 61, a second flexible part 62 and a third flexible part 63 connected with each other. Among them, the second flexible part 62 and the third flexible part 63 are connected on the upper and lower sides of the first flexible part 61 respectively. The second flexible part 62 is bent and connected with one side of the first flexible part 61 to extend above the top surface of the fixing support 4. The first flexible part 61 is fixed on the inner side of the fixing support 4, the second flexible part 62 is electrically connected with the first conductive part 51, and the third flexible part 63 extends along the bottom surface of the cavity 11 to be electrically connected with 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 connecting piece 2 can be conducted to the grounding point of the main control board, improving the safety performance of the electronic equipment. Among them, 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 equipment.

[0063] As shown in Figure 2As shown, the inner side of the fixed support 4 is provided with a receiving groove 42, a first avoiding groove 43 and a second avoiding groove 44. Among them, the receiving groove 42 is arranged close to the first printing forming area, the first avoiding groove 43 and the second avoiding groove 44 are arranged on the upper and lower sides of the receiving groove 42 respectively, the first avoiding groove 43 is communicated with the receiving groove 42 and the first printing forming area, and the second avoiding groove 44 is communicated with 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 to the first printing forming area through the first avoiding 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 to the cavity 11 through the second avoiding groove 44 and is electrically connected with the main control board. The first avoiding groove 43 and the second avoiding groove 44 enable the flexible circuit board 6 to be installed flat or with a circular arc transition when the flexible circuit board 6 is connected as a whole inside the shell 1, avoiding stress concentration and other problems. Among them, the first flexible part 61 can be pasted in the receiving groove 42 by glue or pressure sensitive adhesive. The copper exposed area of the second flexible part 62 can be connected above the first conductive part 51 by laser welding or conductive glue bonding. The third flexible part 63 can be pasted in the cavity 11 by glue or pressure sensitive adhesive.

[0064] Among them, the shape of the receiving groove 42 is matched with the shape of the first flexible part 61, so that the first flexible part 61 can be better fixed. In this embodiment, the receiving groove 42 and the first flexible part 61 are rectangular structures. The first flexible part 61 is connected with a microphone 611 and electronic components 612, which are used to realize specific electronic functions, such as collecting sound and processing 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 profiled structures, and the area of the conductive glue is the same as the area of the copper exposed area of the second flexible part 62, thereby improving the double stability of the physical connection and electrical connection between the second flexible part 62 and the first conductive part 51. Alternatively, the second flexible part 62 and the first conductive part 51 are rectangular.

[0065] As shown, Figure 2 The inner side of the shell 1 is provided with a plurality of limiting blocks 14, which are clamped on the outer side of the fixed support 4, so as to fix the fixed support 4 on the shell 1. Among them, the mounting groove 12 is located in the area surrounded by the plurality of limiting blocks 14, so as to electrically connect the metal connecting piece 2 with the conductive layer 5 on the fixed support 4, etc. In this embodiment, the plurality of limiting blocks 14 are arranged on the outer sides of the four sides of the fixed support 4, so as to clamp and fix the fixed support 4 from four directions. The shape and size of the limiting block 14 are not limited, as long as clamping and clamping can be satisfied.

[0066] One side of the fixed support 4 is also connected with an abutting support 8 extending towards the inner side of the cavity 11, and the abutting support 8 is provided with a clamping part 81 protruding thereon, as shown in Figure 3 and Figure 4The inside of the shell 1 is further provided with a ring-shaped limiting boss 15, which is provided with a clamping groove 151, as shown in Figure 2 The ring-shaped limiting boss 15 is located on one side of the limiting block 14, and is specifically arranged on the side of the plurality of limiting blocks 14 close to the bottom of the cavity 11. After the fixing support 4 is fixed through the limiting block 14, the abutting support 8 is installed on the ring-shaped limiting boss 15, and the clamping part 81 is inserted into the clamping groove 151, thereby further improving the stability of the connection of the fixing support 4.

[0067] As shown in Figure 7 The outer periphery of the ring-shaped limiting boss 15 is upwardly provided with a ring-shaped baffle 152, which surrounds the outer periphery of the abutting support 8, thereby further improving the stability of the connection of the fixing support 4. As shown in Figure 6 The abutting support 8 and the shell 1 form a sound receiving channel 82, which communicates with the cavity 11, thereby ensuring the communication quality and reliability of the electronic device.

[0068] As shown in Figure 5 The shell 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 communicate the mounting groove 12 and the cavity 11, thereby enabling the internal and external communication of the electronic device.

[0069] As shown in Figure 3 and Figure 4 The outer side of the fixing support 4 further includes a first sound pickup hole 45 and a second sound pickup hole 46. The first sound pickup hole 45 and the accommodating groove 42 are connected through a connecting through hole 47, and the first sound pickup hole 45 is arranged opposite to the first through hole 16 to communicate, so that the microphone 611 can pick up sound or air communication through the accommodating groove 42, the first sound pickup hole 45 and the first through hole 16. The first sound pickup hole 45 is in a long strip structure, which can increase the sound pickup area and improve the sound pickup effect. The second sound pickup hole 46 communicates with the sound receiving channel 82, and the second sound pickup hole 46 is arranged opposite to the second through hole 17 to communicate, thereby facilitating the inflow and outflow of external air and balancing 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 that communicate with each other, as shown in Figure 6 The transverse sound pickup hole 461 is arranged opposite to the second through hole 17 to communicate, and the longitudinal sound pickup hole 462 communicates 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 enables the pressure near the middle position of the electronic device to be quickly balanced, thereby improving the stability of the electronic device.

[0071] The fixed support 4 can be provided with a third sound pickup hole 48 according to requirements, and the third through hole 18 is arranged on the shell 1 at a position corresponding to the third sound pickup hole 48, so that the inflow and outflow of air can be further improved, and the internal pressure of the electronic device can be balanced.

[0072] In the embodiment, the first mounting through hole 13 is arranged between the first through hole 16 and the second through hole 17, so that the two ends of the elastic conductive connector 7 are respectively in abutment with the fixed support 4 and the middle position of the metal connecting piece 2, and the uneven force is avoided to prevent the elastic conductive connector 7 from being lifted and affecting the installation effect and the stability of the electrical connection. The second conductive part 52 is located above the first sound pickup hole 45, and one end of the second conductive part 52 extends upward to be connected with the connecting conductive part 53, and the other end of the second conductive part 52 extends downward between the first sound pickup hole 45 and the second sound pickup hole 46 to be connected with the elastic conductive connector 7.

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

[0074] The electronic device of the embodiment comprises a shell, a metal connecting piece, a main control board, a fixed support, a conductive layer, an elastic conductive connector and a flexible circuit board. The metal connecting piece is connected in a mounting groove on the shell, the fixed support and the main control board are arranged in the shell, the conductive layer is formed on the top surface, the connecting surface and the outer side surface of the fixed support by PDS process, the two ends of the elastic conductive connector are respectively electrically connected with the metal connecting piece and the conductive layer, 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, so that the static electricity generated on the metal connecting piece is discharged and conducted to the grounding point of the main control board through the flexible circuit board. The grounding mode of the metal connecting piece in the electronic device is simple, the number of parts is small, the assembly process is simplified, and the effect of static electricity protection is achieved.

[0075] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An electronic device, comprising: The electronic device comprises: a shell (1) internally provided with a cavity (11), an installation groove (12) and a first installation through hole (13) being arranged on the outer side of the shell (1), the first installation through hole (13) being arranged in the installation groove (12) and communicating the installation groove (12) and the cavity (11); a metal connecting piece (2) connected in the installation groove (12); a main control board arranged in the cavity (11); a fixed support (4) arranged in the cavity (11), the top surface and the outer side surface of the fixed support (4) being connected through a connecting surface (49); a conductive layer (5) arranged on the top surface, the connecting surface (49) and the outer side surface of the fixed support (4); an elastic conductive connector (7) installed in the first installation through hole (13), the two ends of the elastic conductive connector (7) being electrically connected with the metal connecting piece (2) and the conductive layer (5) respectively, the length of the elastic conductive connector (7) being not less than the depth of the first installation through hole (13); a flexible circuit board (6) arranged on the inner side surface of the fixed support (4), one end of the flexible circuit board (6) being electrically connected with the conductive layer (5) on the top surface of the fixed support (4), the other end of the flexible circuit board (6) being electrically connected with the main control board, static electricity generated on the metal connecting piece (2) being discharged and conducted to the grounding point of the main control board through the elastic conductive connector (7), the conductive layer (5) and the flexible circuit board (6) in sequence.

2. The electronic device of claim 1, wherein, The fixed support (4) is provided with a first printed forming area, a second printed forming area and an arc-shaped printed forming area (41), the first printed forming area being arranged on the top surface of the fixed support (4) and close to the edge position, the second printed forming area being arranged on the outer side surface of the fixed support (4), the arc-shaped printed forming area (41) being arranged on the connecting surface (49), the arc-shaped printed forming area (41) connecting the first printed forming area and the second printed forming area.

3. The electronic device of claim 2, wherein, 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) being formed in the first printed forming area, the second conductive part (52) being arranged in the second printed forming area, the connecting conductive part (53) being formed in the arc-shaped printed forming area (41) and having two ends electrically connected with the first conductive part (51) and the second conductive part (52) respectively, the first conductive part (51) being electrically connected with the flexible circuit board (6).

4. The electronic device of claim 3, wherein, The material of the elastic conductive connector (7) is conductive silica gel or conductive rubber.

5. The electronic device of claim 3, wherein, The inner side of the fixing support (4) is provided with a containing 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 arranged on the upper and lower sides of the containing groove (42), the first avoiding groove (43) communicates the containing groove (42) and the first printing forming area, and the second avoiding groove (44) communicates the containing groove (42) and the cavity (11).

6. The electronic device of claim 5, wherein, The flexible circuit board (6) comprises: A first flexible part (61) is fixed in the containing groove (42), and a microphone (611) and electronic components (612) are connected to the first flexible part (61); A second flexible part (62) is connected to one side of the first flexible part (61) by bending, extends to the first printing forming area through the first avoiding groove (43), and the copper exposed area of the second flexible part (62) is connected above the first conductive part (51) by conductive glue; A third flexible part (63) is connected to the other side of the first flexible part (61), and the third flexible part (63) extends to the cavity (11) and is electrically connected to the main control board through the second avoiding groove (44).

7. The electronic device of claim 6, wherein, The second flexible part (62) and the first conductive part (51) are profiled structures, and the area of the conductive glue is the same as the copper exposed area of the second flexible part (62).

8. The electronic device of claim 5, wherein, The inner side of the shell (1) is provided with a plurality of limiting blocks (14), and the plurality of limiting blocks (14) are clamped on the outer side of the fixing support (4).

9. The electronic device of claim 8, wherein, The mounting groove (12) is located in the area surrounded by the plurality of limiting blocks (14).

10. The electronic device of claim 8, wherein, One side of the fixing support (4) is further connected with an abutting support (8) extending towards the inner side of the cavity (11), and the outer side of the abutting support (8) is provided with a clamping portion (81); The inner side of the shell (1) is further provided with a ring-shaped limiting boss (15), the ring-shaped limiting boss (15) is provided with a clamping groove (151), the abutting support (8) is mounted on the ring-shaped limiting boss (15), the clamping portion (81) is inserted into the clamping groove (151), and the abutting support (8) and the shell (1) form a sound collecting channel (82) communicating with the cavity (11).

11. The electronic device of claim 10, wherein, The ring-shaped limiting boss (15) is arranged on one side of the plurality of limiting blocks (14) close to the bottom of the cavity (11), and the outer periphery of the ring-shaped limiting boss (15) is further provided with a ring-shaped baffle (152) protruding upwards, and the ring-shaped baffle (152) surrounds the outer periphery of the abutting support (8).

12. The electronic device of claim 10, wherein, The outer side of the fixing support (4) further comprises a first sound pickup hole (45) and a second sound pickup hole (46), a connecting through hole (47) is arranged between the first sound pickup hole (45) and the containing groove (42), and the second sound pickup hole (46) communicates with the sound collecting channel (82).

13. The electronic device of claim 12, wherein, The shell (1) further comprises a first through hole (16) and a second through hole (17) in communication with the mounting slot (12), the first pickup hole (45) is arranged opposite to the first through hole (16) in communication, and the second pickup hole (46) is arranged opposite to the second through hole (17) in communication.

14. The electronic device of claim 13, wherein, The second pickup hole (46) comprises a transverse pickup hole (461) and a longitudinal pickup hole (462) in communication with each other, the transverse pickup hole (461) is arranged opposite to the second through hole (17) in communication, and the longitudinal pickup hole (462) is in communication with the sound collecting channel (82).

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

16. The electronic device of any of claims 1-15, wherein, An outer side surface of the fixed support (4) is arranged as a curved arc surface which is profiled with an inner side surface of the shell (1).

17. The electronic device of claim 2, wherein, An included angle between the first printed forming area and the second printed forming area is an acute angle.

18. The electronic device of any of claims 1-15, wherein, The shell (1) and the fixed support (4) are made of plastic or rubber.

19. The electronic device of any of claims 1-15, wherein, 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 of any of claims 1-15, wherein, The length of the elastic conductive joint (7) is greater than the depth of the first mounting through hole (13).

Images