Electronic device

Abstract

The invention discloses electronic equipment, and belongs to the technical field of electronic products, the electronic equipment comprises a flexible circuit board assembly, the flexible circuit board assembly comprises a flexible circuit board, a flash lamp and an anti-flicker sensor, the flexible circuit board comprises a circuit board body and a flexible connecting part, the flash lamp and the anti-flicker sensor are arranged on the circuit board body, and the flexible connecting part is arranged on the circuit board body; the flexible connecting part is adjacent to an antenna arranged on the frame structure, a grounding end of the anti-flicker sensor is electrically connected with a first exposed copper contact area and a second exposed copper contact area on the flexible connecting part, and the first exposed copper contact area and the second exposed copper contact area are electrically connected with a grounding structure of the flexible circuit board; the mainboard assembly comprises a mainboard, a first patch elastic piece and a second patch elastic piece, the first patch elastic piece and the second patch elastic piece are arranged on the mainboard, and the grounding structure of the mainboard is electrically connected with the first patch elastic piece and the second patch elastic piece; the first patch elastic piece abuts against the first exposed copper contact area, and the second patch elastic piece abuts against the second exposed copper contact area.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic products, and specifically relates to an electronic device. Background Art

[0002] In the related art, flash components and anti-flicker sensors of electronic devices such as mobile phones are usually assembled on a flexible printed circuit (FPC) in the form of patches, and then electrically connected to the patch springs on the mainboard through the exposed copper area of ​​the gold finger on the FPC, so as to achieve electrical connection between the flash components and anti-flicker sensors on the FPC and the mainboard. However, due to the large effective matching area between the exposed copper area of ​​the gold finger and the patch spring, it is easy to cause a large radio frequency interference effect on the adjacent antenna.

[0003] It can be seen that the matching solution of the exposed copper area of ​​the gold finger and the patch spring in the related art has the problem of great influence of radio frequency interference. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide an electronic device that can solve the problem of large radio frequency interference influence in the matching solution of the exposed copper area of ​​the gold finger and the patch spring in the related art.

[0005] The present application provides an electronic device, including:

[0006] A frame structure, wherein an antenna is disposed on a frame border of the frame structure;

[0007] A flexible circuit board assembly, the flexible circuit board assembly comprising a flexible circuit board, a flash lamp and an anti-flicker sensor, the flexible circuit board comprising a circuit board body and a flexible connection portion arranged on the circuit board body, the flash lamp and the anti-flicker sensor being arranged on the circuit board body, the flexible connection portion being arranged adjacent to the antenna, and a first exposed copper contact area and a second exposed copper contact area being arranged on the flexible connection portion, a ground terminal of the anti-flicker sensor being electrically connected to the first exposed copper contact area and the second exposed copper contact area respectively, and the first exposed copper contact area and the second exposed copper contact area are also electrically connected to a ground structure of the flexible circuit board;

[0008] A mainboard component, the mainboard component comprising a mainboard, and a first patch spring and a second patch spring disposed on the mainboard, and a grounding structure of the mainboard is electrically connected to the first patch spring and the second patch spring respectively;

[0009] The first patch spring piece abuts against the first exposed copper contact area, and the second patch spring piece abuts against the second exposed copper contact area.

[0010] In the embodiments of the present application, by abutting the first patch spring sheet against the first exposed copper contact area, and by abutting the second patch spring sheet against the second exposed copper contact area, that is, by adding a ground spring sheet between the anti-flicker sensor and the mainboard, the impedance between the ground structure of the flexible circuit board and the ground structure of the mainboard can be effectively reduced, so that the induced charge accumulated on the flexible circuit board can be quickly released to the ground, thereby reducing the influence of the electromagnetic field generated by the antenna of the electronic device when working on the radio frequency interference of the flexible circuit board.

[0011] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0013] Figure 1 is an exploded schematic diagram of an electronic device provided in an embodiment of the present application;

[0014] Figure 2 is an exploded schematic diagram of a flexible circuit board assembly provided in an embodiment of the present application;

[0015] Figure 3 This is one of the structural schematic diagrams of the flexible circuit board assembly provided in the embodiment of the present application;

[0016] Figure 4 This is the second structural schematic diagram of the flexible circuit board assembly provided in the embodiment of the present application;

[0017] Figure 5 It is one of the circuit diagrams of the flexible circuit board assembly and the main board provided in the embodiment of the present application;

[0018] Figure 6 This is the second circuit diagram of the flexible circuit board assembly and the main board provided in the embodiment of the present application;

[0019] Figure 7 This is the third circuit diagram of the flexible circuit board assembly and the main board provided in the embodiment of the present application;

[0020] Figure 8 This is the fourth circuit diagram of the flexible circuit board assembly and the main board provided in the embodiment of the present application;

[0021] Fig. 9 yes Figures 5 to 8 Schematic diagram of the device in the A region;

[0022] Fig.10 It is one of the structural schematic diagrams of the electronic device provided in the embodiment of the present application;

[0023] Fig.11 yes Figure 1 The structural diagram of the mainboard bracket shown in ;

[0024] Fig.12 This is the second structural diagram of the electronic device provided in the embodiment of the present application;

[0025] Fig.13 yes Figure 2 The structural schematic diagram of the anti-collision strip shown in;

[0026] Fig.14 is a schematic diagram of stacking a flexible circuit board and a main board in an embodiment of the present application;

[0027] Fig.15 yes Fig.14 Equivalent circuit diagram of the stacked flexible circuit board and main board. DETAILED DESCRIPTION

[0028] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0029] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] like Figures 1 to 13 As shown, an embodiment of the present application provides an electronic device, which includes a frame structure 10, a rear cover shell 20 and a circuit board module 30. The circuit board module 30 can be arranged on the frame structure 10, and the rear cover shell 20 can be covered on the circuit board module 30.

[0033] In some embodiments, the frame structure 10 can be understood as the main upper structure of the electronic device, the rear cover shell 20 can be understood as the battery cover of the electronic device, and the circuit board module 30 can be located in the space between the main upper structure and the battery cover.

[0034] In the present application, an antenna is arranged on the frame of the frame structure 10, and the circuit board module 30 includes a flexible circuit board assembly 31 and a main board assembly 32, the flexible circuit board assembly 31 includes a flexible circuit board 311, a flash 312 and an anti-flicker sensor 313, and the main board assembly 32 includes a main board 321 and a patch spring arranged on the main board 321; wherein, the flexible circuit board 311 includes a circuit board body 3111 and a flexible connecting portion 3112 arranged on the circuit board body 3111, and the electrical connection between the flexible connecting portion 3112 and the patch spring can realize the electrical connection between the flexible circuit board 3111 and the main board 321.

[0035] In some embodiments, the flexible connection portion 3112 is disposed adjacent to an antenna disposed on a frame of the frame structure 10 .

[0036] When the antenna is working, a strong electromagnetic field is formed near the radiator of the antenna. That is, the electromagnetic field generated by the antenna is easily coupled to the flexible connection part 3112 and easily causes strong radio frequency interference to the flexible connection part 3112.

[0037] In order to reduce the radio frequency interference effect of the electromagnetic field formed when the antenna is working on the flexible connection part 3112, the present application improves the circuit board module 30 so that the induced charge on the circuit board module 30 can be quickly released to the ground, especially the induced charge on the flexible connection part 3112 can be quickly released to the ground. The induced charge on the circuit board module 30 can be understood as the charge generated by the circuit board module 30 in the electromagnetic field formed by the antenna.

[0038] In some embodiments, the flash 312 and the anti-flicker sensor 313 can be arranged on the circuit board body 3111 in the form of patches, and the flexible connection part 3112 is provided with a first exposed copper contact area 31121 and a second exposed copper contact area 31122, and the grounding terminal 3131 of the anti-flicker sensor 313 is respectively connected to the first exposed copper contact area 31121 and the second exposed copper contact area 31122, and the first exposed copper contact area 31121 and the second exposed copper contact area 31122 are also electrically connected to the grounding structure of the flexible circuit board 311.

[0039] The anti-flicker sensor 313 can be understood as a flicker device, which is used to detect the flicker frequency of natural light.

[0040] In some embodiments, a patch area 3113 is provided on the circuit board body 3111 , and the flash 312 and the anti-flicker sensor 313 may be located within the patch area 3113 .

[0041] In some embodiments, a gold finger copper exposed area 3114 is disposed on the flexible connection portion 3112 , and the first copper exposed contact area 31121 and the second copper exposed contact area 31122 may be located in the gold finger copper exposed area 3114 .

[0042] like Figure 2 , Figure 3 , Figure 5 and Fig. 9 As shown, the mainboard assembly 32 includes a first SMD spring 322 and a second SMD spring 323 disposed on the mainboard 321 , and the grounding structure of the mainboard 321 is electrically connected to the first SMD spring 322 and the second SMD spring 323 , respectively.

[0043] The first patch spring piece 322 abuts against the first copper-exposed contact area 31121 , and the second patch spring piece 323 abuts against the second copper-exposed contact area 31122 .

[0044] The mainboard 321 is not only provided with the first SMD spring 322 and the second SMD spring 323 , but also may be provided with functional components such as a processor chip to realize relevant functions of the electronic device.

[0045] In the present application, by abutting the first patch spring 322 with the first exposed copper contact area 31121, and abutting the second patch spring 323 with the second exposed copper contact area 31122, that is, by adding a ground spring between the anti-flicker sensor 313 and the main board 321, the impedance between the ground structure of the flexible circuit board 311 and the ground structure of the main board 321 can be effectively reduced, so that the induced charge accumulated on the flexible circuit board 311 can be quickly released to the ground, thereby reducing the influence of the electromagnetic field generated by the antenna of the electronic device when working on the radio frequency interference of the flexible circuit board 311.

[0046] The induced charges accumulated on the flexible circuit board 311 may be understood as charges generated by the flexible circuit board 311 in the electromagnetic field formed by the antenna.

[0047] Moreover, by quickly releasing the induced charges accumulated on the flexible circuit board 311 to the ground, the induced charges can be prevented from entering the anti-flicker sensor 313, and the failure problem of the anti-flicker sensor 313 can be effectively avoided.

[0048] In some embodiments, Figure 2 , Figure 3 , Figure 6 and Fig. 9 As shown, the flexible connection portion 3112 is further provided with a third copper-exposed contact area 31123 , and the third copper-exposed contact area 31123 is electrically connected to the first voltage terminal 3132 of the anti-flicker sensor 313 ;

[0049] The mainboard component 32 further includes a third SMD spring 324 disposed on the mainboard 321 , the third SMD spring 324 abuts against the third exposed copper contact area 31123 , and the third SMD spring 324 is also electrically connected to the second voltage terminal 3211 of the mainboard 321 ;

[0050] The flexible circuit board assembly 31 further includes a first capacitor 314 , a first end of the first capacitor 314 is electrically connected to the third copper-exposed contact area 31123 , and a second end of the first capacitor 314 is grounded.

[0051] In the present embodiment, with respect to the first wiring line on the flexible circuit board 311 for realizing the electrical connection between the first voltage terminal 3132 of the anti-flicker sensor 313 and the second voltage terminal 3211 on the main board 321, by providing a grounded first capacitor 314 on the first wiring line and utilizing the high-frequency passing and low-frequency blocking characteristics of the capacitor, the shortest path to the ground can be provided for the induced charges on the first wiring line, thereby further reducing the effect of the electromagnetic field generated by the antenna of the electronic device when it is working on the radio frequency interference of the flexible circuit board 311.

[0052] In some embodiments, Figure 2 , Figure 3 , Figure 7 and Fig. 9 As shown, the flexible connection portion 3112 is further provided with a fourth copper-exposed contact area 31124 and a fifth copper-exposed contact area 31125, the fourth copper-exposed contact area 31124 is electrically connected to the first input-output terminal 3133 of the anti-flicker sensor 313, and the fifth copper-exposed contact area 31125 is electrically connected to the second input-output terminal 3134 of the anti-flicker sensor 313;

[0053] The mainboard component 32 further includes a fourth SMD spring 325 and a fifth SMD spring 326 disposed on the mainboard 321. The fourth SMD spring 325 abuts against the fourth exposed copper contact area 31124, and the fourth SMD spring 325 is also electrically connected to the third input-output terminal 3212 of the mainboard 321; the fifth SMD spring 326 abuts against the fifth exposed copper contact area 31125, and the fifth SMD spring 326 is also electrically connected to the fourth input-output terminal 3213 of the mainboard 321;

[0054] Among them, the flexible circuit board assembly 31 also includes a second capacitor 315 and a third capacitor 316, the first end of the second capacitor 315 is electrically connected to the fourth exposed copper contact area 31124, and the second end of the second capacitor 315 is grounded; the first end of the third capacitor 316 is electrically connected to the fifth exposed copper contact area 31125, and the second end of the third capacitor 316 is grounded.

[0055] In the present embodiment, with respect to the second wiring line on the flexible printed circuit board 311 for realizing the electrical connection between the first input-output terminal 3133 of the anti-flicker sensor 313 and the third input-output terminal 3212 on the main board 321, by providing a grounded second capacitor 315 on the second wiring line and utilizing the high-frequency passing and low-frequency blocking characteristics of the capacitor, the shortest path to the ground can be provided for the induced charges on the second wiring line, thereby further reducing the influence of the electromagnetic field generated by the antenna of the electronic device when it is working on the radio frequency interference of the flexible printed circuit board 311.

[0056] Accordingly, with respect to the third routing line on the flexible circuit board 311 for realizing the electrical connection between the second input-output terminal 3134 of the anti-flicker sensor 313 and the fourth input-output terminal 3213 on the main board 321, by arranging a grounded third capacitor 316 on the third routing line and utilizing the high-frequency passing and low-frequency blocking characteristics of the capacitor, the shortest path to the ground can be provided for the induced charges on the second routing line, thereby further reducing the influence of the electromagnetic field generated by the antenna of the electronic device when it is working on the radio frequency interference of the flexible circuit board 311.

[0057] In some embodiments, the third copper-exposed contact region 31123 , the fourth copper-exposed contact region 31124 , and the fifth copper-exposed contact region 31125 may all be located in the gold finger copper-exposed region 3114 .

[0058] It is understandable that the first capacitor 314 , the second capacitor 315 , and the third capacitor 316 in the present application can all be pF capacitors, so as to provide the shortest path to the ground for the induced charges on the flexible circuit board 311 .

[0059] In some embodiments, Fig.10 As shown, the mainboard assembly 32 further includes a mainboard bracket 327 disposed on the mainboard 321, and the mainboard bracket 327 can be disposed on the mainboard 321 by screw connection;

[0060] The mainboard bracket 327 includes a plastic bracket 3271 and a metal bracket 3272 , and the metal bracket 3272 is disposed on the plastic bracket 3271 .

[0061] In some embodiments, the metal bracket 3272 may be a steel sheet embedded in the plastic bracket 3271 .

[0062] In some embodiments, Figure 2 , Figure 3 , Figure 8 and Fig. 9 As shown, the electronic device also includes a first magnetic member 33 and a second magnetic member 34. The first magnetic member 33 is connected in series to the path where the first input / output terminal 3133 and the third input / output terminal 3212 are located, and the second magnetic member 34 is connected in series to the path where the second input / output terminal 3134 and the fourth input / output terminal 3213 are located.

[0063] In this embodiment, by connecting the first magnetic component 33 in series in the path where the first input-output terminal 3133 and the third input-output terminal 3212 are located, and connecting the second magnetic component 34 in series in the path where the second input-output terminal 3134 and the fourth input-output terminal 3213 are located, it is possible to avoid the transmission of radio frequency interference signals to the mainboard 321, that is, to avoid the transmission of radio frequency interference signals to the mainboard of the electronic device, thereby reducing the interference effect of radio frequency interference signals on the functional components on the mainboard 321.

[0064] In some embodiments, the first input-output terminal 3133 can be understood as a data signal terminal of the anti-flicker sensor 313, and the third input-output terminal 3212 can be understood as a data signal terminal of the processor chip on the mainboard 321. Through the electrical connection between the first input-output terminal 3133 and the third input-output terminal 3212, data signal interaction between the anti-flicker sensor 313 and the processor chip on the mainboard 321 can be achieved;

[0065] Correspondingly, the second input-output terminal 3134 can be understood as the control signal terminal of the anti-flicker sensor 313, and the fourth input-output terminal 3213 can be understood as the control signal terminal of the processor chip on the main board 321. Through the electrical connection between the second input-output terminal 3134 and the fourth input-output terminal 3213, the control signal interaction between the anti-flicker sensor 313 and the processor chip on the main board 321 can be realized.

[0066] In some embodiments, the first magnetic component 33 and the second magnetic component 34 may be magnetic beads with high frequency and high impedance, or magnetic components such as inductors.

[0067] In some embodiments, the flexible connection portion 3112 can be bent relative to the circuit board body 3111 to meet the assembly scenario requirements of the flexible circuit board 311 .

[0068] In some embodiments, the flexible circuit board 311 further includes a first conductive adhesive layer 3115, a second conductive adhesive layer 3116 and a first reinforcing metal plate 3117, wherein the first conductive adhesive layer 3115, the first reinforcing metal plate 3117 and the second conductive adhesive layer 3116 are sequentially stacked on the bonding surface of the flexible connection portion 3112, and the bonding surface of the flexible connection portion 3112 is the end surface of the flexible connection portion 3112 that is away from the first copper-exposed contact area 31121;

[0069] The end surface of the second conductive adhesive layer 3116 facing away from the reinforcing metal plate is bonded to the metal bracket 3272 .

[0070] In this embodiment, the first reinforcing metal plate 3117 can not only be electrically connected to the metal bracket 3272 through the second conductive adhesive layer 3116, but also be connected to the flexible connecting part 3112 through the first conductive adhesive layer 3115. That is, the setting of the first conductive adhesive layer 3115 and the second conductive adhesive layer 3116 can provide the shortest path to the ground for the induced charges on the first reinforcing metal plate 3117, thereby effectively reducing the influence of the electromagnetic field generated by the antenna structure of the electronic device when it is working on the radio frequency interference of the circuit board assembly.

[0071] In some embodiments, the activation rate of the conductive particles in the second conductive adhesive layer 3116 can be increased to provide the shortest path to the ground for the induced charges on the first reinforcing metal plate 3117 .

[0072] In some embodiments, the flexible circuit board 311 also includes a third conductive adhesive layer 31181, a second reinforcing metal plate 31182, and a double-sided adhesive layer 31183. The third conductive adhesive layer 31181, the second reinforcing metal plate 31182, and the double-sided adhesive layer 31183 can be stacked in sequence on the bonding surface of the circuit board body 3111. The bonding surface of the circuit board body 3111 is the end face of the circuit board body 3111 that is away from the patch area 3113.

[0073] In some embodiments, the thickness of the first conductive adhesive layer 3115 can be 0.06 mm; the thickness of the second conductive adhesive layer 3116 can be 0.05 mm; the thickness of the first reinforcing metal plate 3117 can be 0.1 mm; the thickness of the third conductive adhesive layer 31181 can be 0.06 mm; the thickness of the second reinforcing metal plate 31182 can be 0.1 mm; the thickness of the double-sided adhesive layer 31183 can be 0.1 mm.

[0074] In some embodiments, the first reinforcing metal plate 3117 and the second reinforcing metal plate 31182 may both be steel sheets.

[0075] In some embodiments, the second conductive adhesive layer 3116 may be a conductive double-sided adhesive layer; the first conductive adhesive layer 3115 and the third conductive adhesive layer 31181 may be conductive thermosetting adhesive layers.

[0076] In some embodiments, Figure 1 and Fig.10 , Fig.11 As shown, the electronic device further includes a lampshade assembly 40 and a camera decoration assembly 50, and both the lampshade assembly 40 and the camera decoration assembly 50 can be assembled to the rear cover housing 20;

[0077] The lampshade assembly 40 includes a lampshade 41 and a lampshade decorative ring 42 .

[0078] In some embodiments, the plastic bracket 3271 is provided with a hollow structure 32711 , which is directly opposite to the lampshade decorative ring 42 of the flash lamp 312 , and the lampshade decorative ring 42 is also electrically connected to the metal bracket 3272 .

[0079] In this embodiment, a hollow structure 32711 is provided on the plastic bracket 3271 to face the lampshade decorative ring 42, so that the metal bracket 3272 is exposed in the hollow structure 32711, thereby facilitating the electrical connection between the lampshade decorative ring 42 and the metal bracket 3272, that is, the shortest path grounding of the lampshade decorative ring 42 is achieved to realize the static electricity release of the lampshade decorative ring 42.

[0080] In some embodiments, Fig.10 As shown, the electronic device further includes a camera assembly 35 and a board-to-board connector 36, and the camera assembly 35 can be electrically connected to the mainboard 321 through the board-to-board connector 36;

[0081] A wiring groove 32712 is provided on the plastic bracket 3271 . The wiring groove 32712 is arranged opposite to the board-to-board connector, and the flexible connection portion 3112 passes through the wiring groove 32712 .

[0082] In this embodiment, a routing groove 32712 is provided on the plastic bracket 3271 opposite to the board-to-board connector so that the flexible connection portion 3112 can pass through the routing groove 32712 and be electrically connected to the mainboard 321. Compared with the flexible connection portion 3112 passing through the clearance area of ​​the antenna structure and then being electrically connected to the mainboard 321, the influence of the flexible connection portion 3112 on the clearance area of ​​the antenna structure can be reduced, and the clearance area of ​​the antenna structure can be made smaller, so as to optimize the layout space of the functional components of the electronic device.

[0083] In some embodiments, Figure 2 and Fig.13 As shown, the patch area 3113 of the circuit board body 3111 is also provided with a matching electronic component 317 of the anti-flicker sensor 313;

[0084] The flexible circuit board assembly 31 also includes an anti-collision strip 318, which includes an anti-collision strip body 3181, which is arranged around the flash 312, and an anti-collision strip extension portion 3182 extending from the anti-collision strip body 3181 to the area where the supporting electronic component 317 is located.

[0085] In this embodiment, an anti-collision strip extension portion 3182 is provided that extends to the area where the supporting electronic component 317 is located, so that the anti-collision strip 318 can not only protect the flash 312, but also protect the supporting electronic component 317 of the anti-flicker sensor 313.

[0086] Among them, the matching electronic component 317 of the anti-flicker sensor 313 can be understood as the capacitor and inductor device of the anti-flicker sensor 313.

[0087] In some embodiments, the anti-flicker sensor 313 may be provided with three supporting electronic components 317 .

[0088] In some embodiments, the anti-collision strip 318 can be made of elastic materials such as silicone, foam, polyester resin, etc.

[0089] In some embodiments, the flash 312 and the anti-flicker sensor 313 are arranged on the first side of the flexible circuit board 311, and the copper-exposed areas such as the first copper-exposed contact area 31121 and the second copper-exposed contact area 31122 are arranged on the second side of the flexible circuit board 311, and the first side and the second side are the two back sides of the flexible circuit board 311. Through such an arrangement, the device layout on the flexible circuit board 311 can be improved, and the assembly space required for the flexible circuit board assembly 311 can be reduced.

[0090] In some embodiments, Fig.14 As shown, the first conductive adhesive layer 3115, the first reinforcing metal plate 3117 and the second conductive adhesive layer 3116 are stacked in sequence on the first side of the flexible connection part 3112, the copper exposed area on the second side of the flexible connection part 3112 can be electrically connected to the mainboard 321 through the metal spring 328, and the end surface of the second conductive adhesive layer 3116 facing away from the first reinforcing metal plate 3117 is also in contact with the metal bracket 3272.

[0091] Among them, the metal bracket 3272 can be electrically connected to the first reinforcing metal plate 3117 through the second conductive adhesive layer 3116, the first reinforcing metal plate 3117 can be electrically connected to the flexible connection part 3112 through the first conductive adhesive layer 3115, and the flexible connection part 3112 can also be electrically connected to the mainboard 321 through the metal spring 328.

[0092] like Fig.15As shown, the second conductive adhesive layer 3116 used to realize the electrical connection between the metal bracket 3272 and the first reinforcing metal plate 3117 can be equivalent to the first resistor R1; the first conductive adhesive layer 3115 used to realize the electrical connection between the first reinforcing metal plate 3117 and the flexible connecting part 3112 can be equivalent to the second resistor R2; the metal bracket 3272 and the first reinforcing metal plate 3117 can be equivalent to the two electrodes of the fourth capacitor C2; the first reinforcing metal plate 3117 and the main board 321 can be equivalent to the two electrodes of the fifth capacitor C1; the metal spring 328 used to realize the electrical connection between the flexible connecting part 3112 and the main board 321 can be equivalent to a resistance-capacitance-inductance model composed of a third resistor R3, a third capacitor C3 and a first inductor L1.

[0093] In the RC-Inductance model equivalent to the metal spring 328, the first end of the first inductor L1 is electrically connected to the first end of the third capacitor C3, the second end of the first inductor L1 is electrically connected to the first end of the third resistor R3, and the second end of the third resistor R3 is electrically connected to the second end of the third capacitor C3.

[0094] In some embodiments, the metal spring 328 can be understood as the first patch spring 322, the second patch spring 323, the third patch spring 324, the fourth patch spring 325 or the fifth patch spring 326 in the aforementioned embodiments.

[0095] It should be noted that the electronic device in the present application may be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a personal digital assistant (PDA), etc.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0097] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that: include: A frame structure, wherein an antenna is disposed on a frame border of the frame structure; A flexible circuit board assembly, the flexible circuit board assembly comprising a flexible circuit board, a flash lamp and an anti-flicker sensor, the flexible circuit board comprising a circuit board body and a flexible connection portion arranged on the circuit board body, the flash lamp and the anti-flicker sensor being arranged on the circuit board body, the flexible connection portion being arranged adjacent to the antenna, and a first exposed copper contact area and a second exposed copper contact area being arranged on the flexible connection portion, a ground terminal of the anti-flicker sensor being electrically connected to the first exposed copper contact area and the second exposed copper contact area respectively, and the first exposed copper contact area and the second exposed copper contact area are also electrically connected to a ground structure of the flexible circuit board; A mainboard component, the mainboard component comprising a mainboard, and a first patch spring and a second patch spring disposed on the mainboard, and a grounding structure of the mainboard is electrically connected to the first patch spring and the second patch spring respectively; The first patch spring piece abuts against the first exposed copper contact area, and the second patch spring piece abuts against the second exposed copper contact area.

2. The electronic device according to claim 1, characterized in that: A third copper-exposed contact area is also provided on the flexible connection portion, and the third copper-exposed contact area is electrically connected to the first voltage terminal of the anti-flicker sensor; The mainboard assembly further includes a third patch spring arranged on the mainboard, the third patch spring abuts against the third exposed copper contact area, and the third patch spring is also electrically connected to the second voltage terminal of the mainboard; The flexible circuit board assembly further includes a first capacitor, a first end of the first capacitor is electrically connected to the third copper-exposed contact area, and a second end of the first capacitor is grounded.

3. The electronic device according to claim 1, characterized in that: The flexible connection portion is further provided with a fourth copper-exposed contact area and a fifth copper-exposed contact area, the fourth copper-exposed contact area is electrically connected to the first input-output terminal of the anti-flicker sensor, and the fourth copper-exposed contact area is electrically connected to the second input-output terminal of the anti-flicker sensor; The mainboard assembly also includes a fourth patch spring and a fifth patch spring arranged on the mainboard, the fourth patch spring abuts against the fourth exposed copper contact area, and the fourth patch spring is also electrically connected to the third input and output terminal on the mainboard; the fifth patch spring abuts against the fifth exposed copper contact area, and the fifth patch spring is also electrically connected to the fourth input and output terminal on the mainboard Among them, the flexible circuit board assembly also includes a second capacitor and a third capacitor, the first end of the second capacitor is electrically connected to the fourth exposed copper contact area, and the second end of the second capacitor is grounded; the first end of the third capacitor is electrically connected to the fifth exposed copper contact area, and the second end of the third capacitor is grounded.

4. The electronic device according to claim 3, characterized in that: The electronic device further includes a first magnetic member and a second magnetic member, wherein the first magnetic member is connected in series to the path where the first input / output terminal and the third input / output terminal are located, and the second magnetic member is connected in series to the path where the second input / output terminal and the fourth input / output terminal are located.

5. The electronic device according to claim 1, characterized in that: The mainboard assembly further includes a mainboard bracket disposed on the mainboard, the mainboard bracket includes a plastic bracket and a metal bracket, and the metal bracket is disposed on the plastic bracket; The flexible circuit board further comprises a first conductive adhesive layer, a second conductive adhesive layer and a first reinforcing metal plate, wherein the first conductive adhesive layer, the first reinforcing metal plate and the second conductive adhesive layer are sequentially stacked and arranged on the bonding surface of the flexible connecting portion, and the bonding surface of the flexible connecting portion is the end surface of the flexible connecting portion away from the first copper-exposed contact area; Wherein, the end surface of the second conductive adhesive layer facing away from the reinforcing metal plate is bonded to the metal bracket.

6. The electronic device according to claim 5, characterized in that: The plastic support is provided with a hollow structure, the hollow structure is directly opposite to the lampshade decorative ring of the flash lamp, and the lampshade decorative ring is also electrically connected to the metal support.

7. The electronic device according to claim 5, characterized in that: The electronic device further comprises a camera assembly and a board-to-board connector, wherein the camera assembly is electrically connected to the mainboard via the board-to-board connector; The plastic bracket is provided with a wiring groove, the wiring groove is arranged opposite to the board-to-board connector, and the flexible connecting part is arranged through the wiring groove.

8. The electronic device according to any one of claims 1 to 7, characterized in that: The circuit board body is also provided with matching electronic components of the anti-flicker sensor; The flexible circuit board assembly also includes an anti-collision bar, which includes an anti-collision bar body, which is arranged around the flash lamp, and the anti-collision bar also includes an anti-collision bar extension portion extending from the anti-collision bar body to the area where the supporting electronic components are located.

9. The electronic device according to claim 8, characterized in that: The matching electronic components include at least one of a capacitor and a resistor.

10. The electronic device according to any one of claims 1 to 7, characterized in that: The flash lamp and the anti-flicker sensor are arranged on a first side of the flexible circuit board, the first exposed copper contact area and the second exposed copper contact area are arranged on a second side of the flexible circuit board, and the first side and the second side are two opposite sides of the flexible circuit board.

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