Electronic device

By incorporating an enclosure and a metal reinforcing plate on the printed circuit board, the high cost and difficulty in thinning caused by the pre-stressed bracket are solved, enabling the electronic device to be made thinner and lighter while maintaining reliable connectivity.

CN121842938APending Publication Date: 2026-04-10VIVO MOBILE COMM CO LTD
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Patent Information

Application Number
CN202610081972.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-21
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The use of pre-stressed brackets to fix BTB connectors in existing electronic devices results in high production costs and is not conducive to reducing the overall thickness of the device.

Method used

The design employs a structure with an enclosure and a metal reinforcing plate on the printed circuit board. The enclosure surrounds the connecting part, and the metal reinforcing plate connects to the enclosure and the printed circuit board, eliminating the need for a pre-stressing bracket. The combination of the enclosure and the metal reinforcing plate achieves both fixation and protection.

Benefits of technology

It reduces the number of components in electronic devices, lowers production costs, and enhances the structural strength and impact resistance of the device without increasing its thickness, while also improving signal shielding performance and connection reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an electronic device comprising a printed circuit board, one side of the printed circuit board is provided with a first connecting part and an enclosing part, the enclosing part is a metal piece, and the enclosing part is arranged around the first connecting part; the functional module comprises a functional device and a flexible circuit board, the functional device is electrically connected with the printed circuit board through the flexible circuit board, one end of the flexible circuit board is provided with a second connecting part, and one side of the second connecting part is provided with a metal reinforcing plate; when the second connecting part is buckled to the first connecting part, the enclosing part is located between the second connecting part and the metal reinforcing plate, and one of the part, located on the peripheral side of the first connecting part, of the printed circuit board and the enclosing part is connected with the metal reinforcing plate.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electronic equipment, and particularly relates to an electronic equipment. BACKGROUND

[0002] The electronic equipment comprises a printed circuit board and a functional module (such as a battery, a camera and a display screen), and the functional module and the printed circuit board are connected by using a BTB (Board to board) connector. In order to ensure the reliability of the BTB connector, a reinforcing plate needs to be arranged on the BTB connector, and a pre-pressing support needs to be additionally invested to pre-press and fix the BTB connector. Specifically, the pre-pressing support is covered on the outer side of the BTB connector, and the pre-pressing support is locked on the printed circuit board by using a screw.

[0003] Since the pre-pressing support is needed to pre-press and fix the BTB connector, the components of the electronic equipment are increased, the material investment is increased, and the production cost of the product is high. In addition, the matching structure of the pre-pressing support and the BTB connector increases the overall stacking thickness, which is not conducive to the thinning of the whole machine. SUMMARY

[0004] The present application aims to provide an electronic equipment, which at least solves one of the problems that the production cost is high and the thinning of the whole machine is not conducive due to the use of the pre-pressing support to pre-press and fix the connector connecting the printed circuit board and the functional module.

[0005] In order to solve the above technical problems, the present application is implemented as follows:

[0006] The present application provides an electronic equipment, which comprises a printed circuit board, a functional module and a reinforcing plate.

[0007] In the embodiment of the present application, the electronic equipment comprises a printed circuit board and a functional module.

[0008] One side of the printed circuit board is provided with a first connecting part and an enclosing part, that is, the first connecting part and the enclosing part are located on the same side of the printed circuit board.

[0009] The functional module includes a functional device and a flexible circuit board, and the functional device is electrically connected to the printed circuit board through the flexible circuit board. One end of the flexible circuit board is provided with a second connecting part, and one side of the second connecting part is provided with a metal reinforcing plate.

[0010] One of the first connecting part and the second connecting part is a plug, and the other is a socket. That is, the first connecting part is a plug, and the second connecting part is a socket. Or, the first connecting part is a socket, and the second connecting part is a plug. The plug and the socket are plugged together. It can be understood that the BTB connector includes a plug and a socket. When the plug and the socket are plugged together, the functional module and the printed circuit board are electrically connected.

[0011] When the second connecting part is buckled to the first connecting part, the enclosing part is located between the second connecting part and the metal reinforcing plate, and one of the part of the printed circuit board located on the side of the first connecting part and the enclosing part is connected to the metal reinforcing plate. Whether the part of the printed circuit board located on the side of the first connecting part is connected to the metal reinforcing plate or the enclosing part is connected to the metal reinforcing plate, the connection between one of the printed circuit board and the enclosing part and the metal reinforcing plate is located on the side of the plug, and the connection between one of the printed circuit board and the enclosing part and the metal reinforcing plate is located on the side of the socket. In this way, while meeting the connection between one of the printed circuit board and the enclosing part and the metal reinforcing plate, no space is occupied in the thickness direction of the electronic device, which is conducive to the thinning of the electronic device.

[0012] The present application reasonably utilizes the structure of the metal reinforcing plate of the functional module, so that the metal reinforcing plate not only has the functions of reinforcing and fixing the flexible circuit board, but also has the function of being connected to one of the printed circuit board and the enclosing part, so as to fix the first connecting part and the second connecting part, ensure the matching size of the plug and the socket, and ensure the effectiveness and reliability of the plug and the socket. Since the pre-pressing support in the related art is omitted, the number of components of the electronic device is reduced, the material input is reduced, the production cost of the electronic device is reduced, and the overall stacking thickness is reduced, which is conducive to the thinning of the entire machine and the lightening and thinning of the electronic device.

[0013] The printed circuit board is also provided with an enclosing part, the enclosing part and the first connecting part are located on the same side of the printed circuit board, and the enclosing part is arranged around the first connecting part. That is, the enclosing part has a ring structure, and the enclosing part has the functions of preventing liquid and preventing dirt, so as to prevent liquid and dirt from entering the first connecting part, and to provide structural support for safe and reliable electrical connection of the first connecting part and the second connecting part.

[0014] When the second connecting part is engaged with the first connecting part, the enclosing part is located between the second connecting part and the metal reinforcing plate. That is, both the first and second connecting parts are located inside the metal reinforcing plate and the enclosing part. The metal reinforcing plate and the enclosing part cooperate to achieve multiple protective barriers to enhance the effect of liquid and dirt resistance.

[0015] When the second connecting part is engaged with the first connecting part, and the enclosing part and the metal reinforcing plate are connected, the enclosing part and the metal reinforcing plate cooperate to have a limiting function, which can ensure the effectiveness and reliability of the connection between the first connecting part and the second connecting part.

[0016] In addition, the first connecting part, the second connecting part, the printed circuit board, the enclosure part and the metal reinforcing plate work together to enhance the structural strength of the part of the printed circuit board with the enclosure part, improve the local bending resistance of the printed circuit board, ensure the effectiveness of the connection between the first connecting part and the second connecting part, enhance the impact resistance of electronic devices when dropped, and extend the service life of the product.

[0017] The enclosure is made of metal, and together with the metal reinforcing plate, it not only provides protection against liquids and contaminants but also enhances shielding performance. In high-frequency applications, interference can easily occur, causing hum or display malfunctions. The combination of the enclosure and the metal reinforcing plate, without the introduction of additional shielding materials, enhances shielding performance, reduces signal interference, and improves product reliability.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a first-view structural schematic diagram of the functional module according to the first embodiment of this application;

[0021] Figure 2 This is a second-view structural schematic diagram of the functional module according to the first embodiment of this application;

[0022] Figure 3 for Figure 2 A magnified view of part A of the functional module shown;

[0023] Figure 4 This is a schematic diagram of the structure of the printed circuit board, the first connecting portion, and the enclosing portion according to the first embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the structure of the enclosure according to the first embodiment of this application;

[0025] Figure 6 This is a partial structural schematic diagram of an electronic device according to the first embodiment of this application from a first perspective;

[0026] Figure 7 for Figure 6 A magnified view of part B of the electronic device shown;

[0027] Figure 8 This is an exploded view of a portion of the structure of an electronic device according to the first embodiment of this application;

[0028] Figure 9 for Figure 8 A magnified view of part C of the electronic device shown;

[0029] Figure 10 This is a partial structural schematic diagram of an electronic device according to the first embodiment of this application from a second perspective;

[0030] Figure 11 for Figure 10 A magnified view of part D of the electronic device shown;

[0031] Figure 12 This is a schematic diagram of the electronic device portion structure according to the first embodiment of this application;

[0032] Figure 13 for Figure 12 A magnified view of part E of the electronic device shown;

[0033] Figure 14 This is a first-view structural schematic diagram of a functional module according to the second embodiment of this application;

[0034] Figure 15 This is a structural schematic diagram of a functional module according to a second embodiment of the present application from a second perspective;

[0035] Figure 16 for Figure 15 A magnified view of part F of the functional module shown;

[0036] Figure 17 This is a schematic diagram of the structure of the printed circuit board, the first connecting portion, and the enclosing portion according to the second embodiment of this application;

[0037] Figure 18 for Figure 17 A partial enlarged view of the printed circuit board, the first connecting portion, and the enclosure portion G shown.

[0038] Figure 19This is an exploded view of the first part of the structure of an electronic device according to the second embodiment of this application;

[0039] Figure 20 This is a schematic diagram of the structure of the metal reinforcing plate according to the second embodiment of this application;

[0040] Figure 21 This is a schematic diagram of the connector according to the second embodiment of this application;

[0041] Figure 22 This is a schematic diagram of the second part of the structure of an electronic device according to the second embodiment of this application;

[0042] Figure 23 This is a schematic diagram of the third part of an electronic device according to the second embodiment of this application;

[0043] Figure 24 This is a first-view structural schematic diagram of a functional module according to a third embodiment of this application;

[0044] Figure 25 for Figure 24 A magnified view of part H of the functional module shown;

[0045] Figure 26 This is a partial structural schematic diagram of a functional module according to the third embodiment of this application;

[0046] Figure 27 This is a partial structural schematic diagram of a printed circuit board, a first connecting portion, and an enclosing portion according to a third embodiment of this application;

[0047] Figure 28 This is a partial structural schematic diagram of the printed circuit board and the enclosure according to the third embodiment of this application;

[0048] Figure 29 This is a schematic diagram of the structure of the enclosure according to the third embodiment of this application;

[0049] Figure 30 This is a schematic diagram of the structure of the metal reinforcing plate according to the third embodiment of this application;

[0050] Figure 31 This is a schematic diagram of the first part of the structure of an electronic device according to the third embodiment of this application;

[0051] Figure 32 This is a schematic diagram of the second part of the structure of an electronic device according to the third embodiment of this application.

[0052] Figure label:

[0053] 10 Electronic device, 100 Printed circuit board, 210 First connecting part, 230 Enclosing part, 232 First chamfer, 234 Second flange, 300 Functional module, 310 Flexible circuit board, 320 Metal reinforcing plate, 322 Adhesive part, 323 Second chamfer, 324 Hanging ear part, 325 Disassembly port, 326 Enclosing plate, 330 Second connecting part, 350 Connector, 352 Connecting section, 354 Spring piece, 355 First buckle, 356 Second buckle, 360 Elastic connecting part, 370 Functional device, 400 Fastener, 500 Adhesive layer, 610 Buckle, 620 Opening, 630 First slot, 640 Second slot. Detailed Implementation

[0054] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0055] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0056] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] The following is combined Figures 1 to 32 The electronic device 10 described in this application is an embodiment of the present application.

[0059] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 17 , Figure 18 , Figure 19 , Figure 22 , Figure 23 , Figure 24 , Figure 25 , Figure 27 , Figure 28 , Figure 31 and Figure 32 As shown, an electronic device 10 according to some embodiments of this application includes: a printed circuit board 100, one side of which is provided with a first connecting portion 210 and an enclosure portion 230, the enclosure portion 230 being a metal component, the enclosure portion 230 surrounding the first connecting portion 210; a functional module 300, the functional module 300 including a functional device 370 and a flexible circuit board 310, the functional device 370 being electrically connected to the printed circuit board 100 through the flexible circuit board 310, one end of the flexible circuit board 310 being provided with a second connecting portion 330, one side of which is provided with a metal reinforcing plate 320; when the second connecting portion 330 is engaged with the first connecting portion 210, the enclosure portion 230 is located between the second connecting portion 330 and the metal reinforcing plate 320, and one of the portion of the printed circuit board 100 located around the first connecting portion 210 and the enclosure portion 230 is connected to the metal reinforcing plate 320.

[0060] The electronic device 10 according to an embodiment of this application includes a printed circuit board 100 and a functional module 300.

[0061] The printed circuit board 100 has a first connecting portion 210 and an enclosing portion 230 on one side, that is, the first connecting portion 210 and the enclosing portion 230 are located on the same side of the printed circuit board 100.

[0062] The functional module 300 includes a functional device 370 and a flexible circuit board 310. The functional device 370 is electrically connected to the printed circuit board 100 through the flexible circuit board 310. One end of the flexible circuit board 310 is provided with a second connecting portion 330, and a metal reinforcing plate 320 is provided on one side of the second connecting portion 330.

[0063] In this design, one of the first connecting portion 210 and the second connecting portion 330 is a plug, and the other is a socket. That is, the first connecting portion 210 is a plug, and the second connecting portion 330 is a socket. Alternatively, the first connecting portion 210 is a socket, and the second connecting portion 330 is a plug. The plug and socket are engaged; it can be understood that the BTB connector includes both a plug and a socket. When the plug and socket are engaged, the functional module 300 and the printed circuit board 100 are electrically connected.

[0064] When the second connecting portion 330 is engaged with the first connecting portion 210, the enclosing portion 230 is located between the second connecting portion 330 and the metal reinforcing plate 320. One of the portions of the printed circuit board 100 located around the first connecting portion 210 and the enclosing portion 230 is connected to the metal reinforcing plate 320. Whether the portion of the printed circuit board 100 located around the first connecting portion 210 is connected to the metal reinforcing plate 320, or the enclosing portion 230 is connected to the metal reinforcing plate 320, the connection point between the printed circuit board 100 and the enclosing portion 230 and the metal reinforcing plate 320 is located around the plug, and the connection point between the printed circuit board 100 and the enclosing portion 230 and the metal reinforcing plate 320 is located around the socket. In this way, while satisfying the requirement that one of the printed circuit board 100 and the enclosing portion 230 is connected to the metal reinforcing plate 320, no space is occupied in the thickness direction of the electronic device 10, which is beneficial for achieving a thinner electronic device 10.

[0065] This application makes reasonable use of the structure of the metal reinforcing plate 320 of the functional module 300, so that the metal reinforcing plate 320 not only has the function of reinforcing and fixing the flexible circuit board 310, but also has the function of connecting with one of the printed circuit board 100 and the enclosure portion 230, so as to fix the first connecting portion 210 and the second connecting portion 330, which can ensure the mating dimensions of the plug and socket, and ensure the effectiveness and reliability of the plug and socket mating. Since the pre-pressure bracket in the related technology is eliminated, the number of components of the electronic device 10 is reduced, the material input is reduced, and the production cost of the electronic device 10 is reduced. At the same time, since the pre-pressure bracket in the related technology is eliminated, the overall stacking thickness can be reduced, which is conducive to reducing the thickness of the whole device and realizing the thinning of the electronic device 10.

[0066] The printed circuit board 100 also includes an enclosure portion 230, which is located on the same side of the printed circuit board 100 as the first connecting portion 210. The enclosure portion 230 surrounds the first connecting portion 210. That is, the enclosure portion 230 has a ring-shaped structure and serves to prevent liquids and contaminants from entering the first connecting portion 210, thus providing structural support for a safe and reliable electrical connection between the first connecting portion 210 and the second connecting portion 230.

[0067] When the second connecting portion 330 is engaged with the first connecting portion 210, the enclosing portion 230 is located between the second connecting portion 330 and the metal reinforcing plate 320. That is, both the first connecting portion 210 and the second connecting portion 330 are located inside the metal reinforcing plate 320 and the enclosing portion 230. The metal reinforcing plate 320 and the enclosing portion 230 cooperate to achieve multiple protective barriers to enhance the effect of liquid and dirt resistance.

[0068] When the second connecting part 330 is engaged with the first connecting part 210 and the enclosure part 230 is connected to the metal reinforcing plate 320, the enclosure part 230 and the metal reinforcing plate 320 cooperate to have a limiting function, which can ensure the effectiveness and reliability of the connection between the first connecting part 210 and the second connecting part 330.

[0069] In addition, the first connecting part 210, the second connecting part 330, the printed circuit board 100, the enclosure part 230 and the metal reinforcing plate 320 work together to enhance the structural strength of the part of the printed circuit board 100 where the enclosure part 230 is provided, improve the local bending resistance of the printed circuit board 100, ensure the effectiveness of the connection between the first connecting part 210 and the second connecting part 330, enhance the impact resistance of the electronic device 10 when dropped, and extend the service life of the product.

[0070] The enclosure 230 is made of metal. The enclosure 230 and the metal reinforcing plate 320 not only provide protection against liquids and contaminants, but also enhance shielding performance. In high-frequency applications, interference can easily occur, causing hum or display malfunctions. The enclosure 230 and the metal reinforcing plate 320 work together to enhance shielding performance, reduce signal interference, and improve product reliability without introducing additional shielding material.

[0071] In related technologies, the functional module also includes a reinforcing plate, which is connected to the flexible circuit board. The reinforcing plate serves to reinforce and fix the flexible circuit board. The reinforcing plate is only a flat structure and is not connected to the printed circuit board. The reinforcing plate does not have the function of fixing the BTB connector.

[0072] For example, the electronic device 10 can be a mobile phone, tablet computer, laptop computer, handheld computer, in-vehicle electronic device, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook or personal digital assistant (PDA), etc. It can also be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM or self-service machine, etc. The embodiments of this application do not make specific limitations.

[0073] According to some embodiments of this application, such as Figure 2 , Figure 3 , Figure 24 , Figure 25 and Figure 30 As shown, the metal reinforcing plate 320 includes a bonding portion 322, which covers the second connecting portion 330. When the portion of the printed circuit board 100 located around the first connecting portion 210 is connected to the metal reinforcing plate 320, the metal reinforcing plate 320 also includes a hanging ear portion 324, which is disposed on both sides of the bonding portion 322 and is connected to the printed circuit board 100.

[0074] Optionally, the metal reinforcing plate 320 includes a bonding portion 322 and a hanging portion 324. The hanging portions 324 are disposed on both sides of the bonding portion 322, that is, hanging portions 324 are provided on opposite sides of the bonding portion 322. It can also be understood that there are two hanging portions 324, and the bonding portion 322 is connected between the two hanging portions 324.

[0075] The fitting portion 322 covers the second connecting portion 330, and the enclosing portion 230 is located between the fitting portion 322 and the second connecting portion 330. That is, both the first connecting portion 210 and the second connecting portion 330 are located inside the fitting portion 322 and the enclosing portion 230. The fitting portion 322 and the enclosing portion 230 cooperate to achieve multiple protective barriers to enhance the effect of liquid and dirt resistance.

[0076] It is understood that the lug portion 324 extends in a direction perpendicular to the metal reinforcing plate 320 to the printed circuit board 100, and the lug portion 324 is disposed opposite to the portion of the printed circuit board 100 located around the first connecting portion 210. When the enclosing portion 230 and the metal reinforcing plate 320 are assembled, the enclosing portion 230 and the fitting portion 322 cooperate to have a limiting function, which can ensure the matching dimensions of the first connecting portion 210 and the second connecting portion 330, and ensure the effectiveness and reliability of the connection between the first connecting portion 210 and the second connecting portion 330.

[0077] In addition, the first connecting part 210, the second connecting part 330 and the metal reinforcing plate 320 work together to enhance the structural strength of the part of the printed circuit board 100 where the enclosure part 230 is provided, improve the local bending resistance of the printed circuit board 100, ensure the effectiveness of the connection between the first connecting part 210 and the second connecting part 330, enhance the impact resistance of the electronic device 10 when it is dropped, and extend the service life of the product.

[0078] For example, the extending directions of the fitting portion 322 and the ear portion 324 are different. It can be understood that a portion of the metal reinforcing plate 320 is bent to form the ear portion 324. Therefore, the metal reinforcing plate 320 has high strength. When an external force impacts the electronic device 10, the stress can be transferred from the functional module 300 to the enclosure portion 230 and the printed circuit board 100, and will not be concentrated at the connection between the first connecting portion 210 and the second connecting portion 330. This can enhance the impact resistance of the overall structure and reduce the probability of separation of the first connecting portion 210 and the second connecting portion 330.

[0079] For example, the fitting portion 322 includes a surrounding plate 326 located around the periphery of the second connecting portion 330. For instance, there may be two surrounding plates 326, with the second connecting portion 330 located between the two surrounding plates 326, and each surrounding plate 326 connected to a hanging ear portion 324. Alternatively, there may be three surrounding plates 326 arranged circumferentially around the second connecting portion 330, with each surrounding plate 326 located on one side of the second connecting portion 330, and at least two of the three surrounding plates 326 connected to the hanging ear portion 324. Finally, there may be four surrounding plates 326 arranged circumferentially around the second connecting portion 330, with one surrounding plate 326 on each side of the second connecting portion 330, and at least two of the four surrounding plates 326 connected to the hanging ear portion 324.

[0080] For example, the fitting portion 322 includes a plurality of side panels 326, which are arranged circumferentially along the second connecting portion 330. Adjacent side panels 326 are located on different sides of the second connecting portion 330. There are also a plurality of hanging ears 324, and at least a portion of the side panels 326 is connected to one of the hanging ears 324. For instance, there may be two side panels 326, one located on the first side of the second connecting portion 330 and the other on the second side of the second connecting portion 330. The first side and the second side of the second connecting portion 330 may be opposite sides of the second connecting portion 330, or the first side and the second side of the second connecting portion 330 may be adjacent sides of the second connecting portion 330. For example, there are three enclosure panels 326. The first enclosure panel 326 is located on the first side of the second connecting portion 330, the second enclosure panel 326 is located on the second side of the second connecting portion 330, and the third enclosure panel 326 is located on the third side of the second connecting portion 330. The first side, the second side, and the third side of the second connecting portion 330 are the three adjacent sides of the second connecting portion 330. For example, the enclosure panels 326 are arranged around the second connecting portion 330, that is, the enclosure panels 326 have a ring structure.

[0081] By rationally setting the mating structure of the fitting part 322 and the second connecting part 330, the metal reinforcing plate 320 and the enclosure part 230 can be limited from multiple directions and angles, ensuring the mating dimensions of the metal reinforcing plate 320 and the enclosure part 230, and providing structural support for ensuring the effectiveness and reliability of the connection between the first connecting part 210 and the second connecting part 330.

[0082] According to some embodiments of this application, the metal reinforcing plate 320 includes a bonding portion 322 that covers the second connecting portion 330; when the enclosing portion 230 is connected to the metal reinforcing plate 320, the bonding portion 322 is connected to the enclosing portion 230.

[0083] Optionally, the metal reinforcing plate 320 includes an adhesive portion 322 that covers the second connecting portion 330, and an enclosure portion 230 located between the adhesive portion 322 and the second connecting portion 330. That is, both the first connecting portion 210 and the second connecting portion 330 are located inside the adhesive portion 322 and the enclosure portion 230. The adhesive portion 322 and the enclosure portion 230 cooperate to achieve multiple protective barriers, enhancing the effectiveness against liquids and contaminants.

[0084] When the enclosure portion 230 is connected to the metal reinforcing plate 320, the fitting portion 322 is connected to the enclosure portion 230. That is, the fitting portion 322 not only covers the second connecting portion 330, but also connects to the enclosure portion 230, thus enriching the function of the fitting portion 322. After the enclosure portion 230 and the metal reinforcing plate 320 are assembled, the enclosure portion 230 and the fitting portion 322 cooperate to provide a limiting function, ensuring the matching dimensions of the first connecting portion 210 and the second connecting portion 330, and guaranteeing the effectiveness and reliability of the connection between the first connecting portion 210 and the second connecting portion 330.

[0085] According to some embodiments of this application, such as Figure 5 , Figure 20 and Figure 29 As shown, the enclosure portion 230 has a first chamfer 232 on the side away from the printed circuit board 100; and / or the bonding portion 322 has a second chamfer 323 on the side facing the printed circuit board 100.

[0086] Optionally, the enclosure portion 230 has a first chamfer 232 on the side facing away from the printed circuit board 100, and / or the mating portion 322 has a second chamfer 323 on the side facing the printed circuit board 100. The first chamfer 232 and the second chamfer 323 have a guiding function to reduce the assembly difficulty of the enclosure portion 230 and the metal reinforcing plate 320, so that the enclosure portion 230 can be smoothly inserted into the metal reinforcing plate 320, shortening the assembly time and improving assembly efficiency.

[0087] Furthermore, by providing the first chamfer 232 and / or the second chamfer 323, burrs and sharp edges can be removed, preventing scratches to operators. This also reduces stress concentration caused by temperature changes, lowering the probability of cracking in the enclosure 230 and the metal reinforcing plate 320 due to temperature variations. Exemplarily, the first chamfer 232 includes a right angle and / or a rounded corner. The second chamfer 323 includes a right angle and / or a rounded corner.

[0088] According to some embodiments of this application, such as Figure 5 and Figure 29 As shown, the enclosure 230 has a second flange 234 on the side facing the printed circuit board 100, and the second flange 234 is connected to the printed circuit board 100.

[0089] Optionally, the enclosure 230 has a second flange 234 on the side facing the printed circuit board 100. The second flange 234 is attached to and connected to the printed circuit board 100, such as by soldering. By providing the second flange 234, the contact area between the enclosure 230 and the printed circuit board 100 can be increased, which helps to improve the stability and reliability of the assembly between the enclosure 230 and the printed circuit board 100. It can also enhance the torsional stiffness at the connection between the enclosure 230 and the printed circuit board 100, prevent the enclosure 230 from shifting relative to the printed circuit board 100, and prevent gaps from appearing at the connection between the enclosure 230 and the printed circuit board 100, thus ensuring the effectiveness of liquid and dirt protection.

[0090] Furthermore, when the plug and socket are connected, the contact area between the second flange 234 and the printed circuit board 100 is large, thus dispersing stress to the contact point between the second flange 234 and the printed circuit board 100, which helps to reduce local stress values. It is understood that the second flange 234 has a ring-shaped structure.

[0091] According to some embodiments of this application, such as Figure 6 , Figure 7 , Figure 22 , Figure 23 and Figure 32 As shown, the flexible circuit board 310 is located between the metal reinforcing plate 320 and the second connecting portion 330.

[0092] Optionally, the positional relationship between the flexible circuit board 310, the metal reinforcing plate 320, and the second connecting portion 330 is as follows: the flexible circuit board 310 is located between the metal reinforcing plate 320 and the second connecting portion 330. The metal reinforcing plate 320 and the second connecting portion 330 cooperate to support and protect the flexible circuit board 310. The metal reinforcing plate 320 is located on the outside of the flexible circuit board 310. When the electronic device 10 is dropped or subjected to external pressure, the impact force acts on the metal reinforcing plate 320 first compared to the flexible circuit board 310. Therefore, the external force acting on the flexible circuit board 310 can be reduced, and the probability of the flexible circuit board 310 breaking can be reduced.

[0093] In addition, the flexible circuit board 310 is located between the metal reinforcing plate 320 and the second connecting part 330. The flexible circuit board 310 can adapt to the shape of the metal reinforcing plate 320 and can adapt to the irregular installation space in the electronic device 10, which has the advantage of flexible adaptation.

[0094] According to some embodiments of this application, the connection structure between the portion of the printed circuit board 100 located around the first connection portion 210 and the enclosure portion 230 and the metal reinforcing plate 320 includes any one or a combination of the following: snap-fit ​​connection, magnetic connection, and fastening connection by fastener 400.

[0095] Optionally, the connection structure between the portion of the printed circuit board 100 located around the first connecting portion 210 and the enclosure portion 230 and the metal reinforcing plate 320 includes any one or a combination of the following: snap-fit ​​connection, magnetic connection, and fastening connection via fastener 400. The portion of the printed circuit board 100 located around the first connecting portion 210 and the enclosure portion 230 being detachably connected to the metal reinforcing plate 320 allows for the determination of the detachment and assembly of the portion of the printed circuit board 100 located around the first connecting portion 210 and the enclosure portion 230 to the metal reinforcing plate 320, and also determines the installation position of the functional module 300 relative to the printed circuit board 100. This adapts to the usage requirements of different models of electronic devices 10, offering the advantages of convenient assembly and disassembly, strong product adaptability, and improved product performance.

[0096] According to some embodiments of this application, such as Figure 24 , Figure 25 , Figure 26 , Figure 27 , Figure 28 , Figure 29 , Figure 30 and Figure 32 As shown, when the fitting part 322 and the enclosure part 230 are connected by a snap fastener, one of the fitting part 322 and the enclosure part 230 is provided with a snap fastener 610, and the other is provided with an opening 620. The snap fastener 610 is snapped into the opening 620.

[0097] Optionally, when the fitting portion 322 and the enclosing portion 230 are snap-fit ​​connected, the fitting portion 322 is provided with a buckle 610, and the enclosing portion 230 is provided with an opening 620, with the buckle 610 snapping into the opening 620. Alternatively, when the fitting portion 322 and the enclosing portion 230 are snap-fit ​​connected, the fitting portion 322 is provided with an opening 620, and the enclosing portion 230 is provided with a buckle 610, with the buckle 610 snapping into the opening 620.

[0098] Therefore, the buckle 610 and the opening 620 cooperate to limit the relative displacement between the fitting part 322 and the enclosure part 230, thereby limiting the first connecting part 210 and the second connecting part 330, ensuring the effectiveness and reliability of the connection between the first connecting part 210 and the second connecting part 330, and also having the advantage of being easy to assemble and disassemble.

[0099] According to some embodiments of this application, such as Figure 15 , Figure 16 and Figure 19As shown, when the bonding portion 322 and the enclosure portion 230 are snapped together, the flexible circuit board 310 is also provided with a connector 350, and the bonding portion 322 and the enclosure portion 230 are snapped together by the connector 350.

[0100] Optionally, the flexible circuit board 310 is further provided with a connector 350, and the bonding portion 322 and the enclosing portion 230 are snapped together by the connector 350. Optionally, the connector 350 is located between the bonding portion 322 and the enclosing portion 230, and the bonding portion 322 and the enclosing portion 230 are respectively snapped together with the connector 350.

[0101] The connector 350 serves as an intermediate medium, which can compensate for the processing errors of the bonding part 322 and the enclosure part 230. While ensuring the effectiveness of the connection between the bonding part 322 and the enclosure part 230 through the connector 350, it can reduce the assembly defect rate and reduce the processing accuracy requirements of the bonding part 322 and the enclosure part 230, which is conducive to improving the processing efficiency of the product.

[0102] According to some embodiments of this application, such as Figure 21 , Figure 22 and Figure 23 As shown, the enclosure portion 230 is provided with a first slot 630, and the fitting portion 322 is provided with a second slot 640; the connector 350 includes a connecting section 352 and a spring piece 354. The connecting section 352 is connected to the flexible circuit board 310, and the spring piece 354 is bent from the connecting section 352 to form a first fastening position 355 and a second fastening position 356. The first fastening position 355 engages with the first slot 630, and the second fastening position 356 engages with the second slot 640; along the direction from the flexible circuit board 310 to the printed circuit board 100, the second slot 640 is closer to the printed circuit board 100 than the first slot 630.

[0103] Optionally, the enclosure portion 230 is provided with a first slot 630, and the fitting portion 322 is provided with a second slot 640.

[0104] The connector 350 includes a connecting section 352 and a spring tab 354. The connecting section 352 is connected to the flexible circuit board 310, that is, the spring tab 354 is connected to the flexible circuit board 310 through the connecting section 352. The spring tab 354 is bent from the connecting section 352 to form a first latching position 355 and a second latching position 356. The first latching position 355 engages with the first slot 630, and the second latching position 356 engages with the second slot 640. For example, the first latching position 355 engages with the first slot 630, and the second latching position 356 engages with the second slot 640.

[0105] Along the direction from the flexible circuit board 310 to the printed circuit board 100, the second slot 640 is closer to the printed circuit board 100 than the first slot 630. Thus, when the pressing function module 300 and the metal reinforcing plate 320 move towards the printed circuit board 100, the second slot 640 first contacts the second latch 356 of the spring 354. As the metal reinforcing plate 320 continues to move downward, it drives the spring 354 to deform, causing the second latch 356 to engage in the second slot 640, and the first latch 355 to engage in the first slot 630. The first slot 630, the first latch 355, the second slot 640, and the second latch 356 cooperate to form a bidirectional pre-pressure, effectively limiting the first connecting portion 210 and the second connecting portion 330.

[0106] In addition, along the direction from the flexible circuit board 310 to the printed circuit board 100, the second slot 640 is closer to the printed circuit board 100 than the first slot 630. This allows the main pre-pressure source to be transferred from the enclosure portion 230 to the lower end of the bonding portion 322, and the pre-pressure transmission path of the spring 354 can be changed. The cooperation of the first slot 630, the second slot 640 and the spring 354 can absorb more energy, adapt to high-impact scenarios, improve the reliability of the connection between the first connecting portion 210 and the second connecting portion 330, and help improve the performance of the product.

[0107] According to some embodiments of this application, such as Figure 19 and Figure 23 As shown, the functional module 300 also includes an elastic connection part 360, which is connected between the flexible circuit board 310 and the metal reinforcing plate 320.

[0108] The elastic connection 360 serves to separate the flexible circuit board 310 and the metal reinforcing plate 320, preventing the mechanical stress of the metal reinforcing plate 320 from being directly transmitted to the flexible circuit board 310, blocking the rigid transmission path, preventing the lines of the flexible circuit board 310 from being pulled, and thus protecting the flexible circuit board 310.

[0109] The elastic connection portion 360 can also absorb vibration and impact energy during deformation, reducing the relative displacement between the flexible circuit board 310 and the metal reinforcing plate 320, and preventing the first connection portion 210 and the second connection portion 330 from becoming loose due to displacement of the flexible circuit board 310. Exemplarily, the elastic connection portion 360 may include silicone, rubber, foam, etc., which will not be listed here.

[0110] According to some embodiments of this application, such as Figure 24 , Figure 25 , Figure 26 and Figure 30 As shown, when the bonding part 322 and the enclosure part 230 are snapped together, the bonding part 322 has a disassembly port 325 on the side facing the printed circuit board 100.

[0111] By way of example, when the bonding portion 322 and the enclosure portion 230 are snap-fitted together, the structure of the bonding portion 322 is refined. The bonding portion 322 has a disassembly port 325 on the side facing the printed circuit board 100, allowing a tool to be inserted into the disassembly port 325 and pry up the bonding portion 322 to separate the bonding portion 322 and the enclosure portion 230, thus simplifying the disassembly of the bonding portion 322 and the enclosure portion 230. The number of disassembly ports 325 can be one or more.

[0112] According to some embodiments of this application, along the direction from the flexible circuit board 310 to the printed circuit board 100, the height of the bonding portion 322 is higher than the height of the second connecting portion 330, and the height of the enclosing portion 230 is higher than the height of the first connecting portion 210.

[0113] Along the direction from the flexible circuit board 310 to the printed circuit board 100, the height of the bonding portion 322 is higher than the height of the second connecting portion 330, and the height of the enclosure portion 230 is higher than the height of the first connecting portion 210. In this way, when assembling the functional module 300 and the printed circuit board 100, the bonding portion 322 and the enclosure portion 230 are aligned and fitted before the first connecting portion 210 and the second connecting portion 330. The priority fitting and assembly of the bonding portion 322 and the enclosure portion 230 can play the role of aligning the first connecting portion 210 and the second connecting portion 330, ensuring the fitting position of the first connecting portion 210 and the second connecting portion 330, avoiding the situation of misalignment and collapse of the first connecting portion 210 and the second connecting portion 330, and effectively protecting the first connecting portion 210 and the second connecting portion 330.

[0114] In addition, the higher fitting portion 322 and the higher enclosure portion 230 work together so that when the electronic device 10 is dropped, the fitting portion 322 and the enclosure portion 230 can absorb part of the impact energy, reduce the impact force transmitted to the first connecting portion 210 and the second connecting portion 330, protect the first connecting portion 210 and the second connecting portion 330, and help extend the service life of the first connecting portion 210 and the second connecting portion 330.

[0115] According to some embodiments of this application, when the bonding portion 322 is connected to the enclosure portion 230, the bonding portion 322 is arranged at a distance from the printed circuit board 100.

[0116] When the bonding portion 322 is connected to the enclosure portion 230, the bonding portion 322 is spaced apart from the printed circuit board 100. The bonding portion 322 will not interfere with the printed circuit board 100 and will not hinder the connection between the first connecting portion 210 and the second connecting portion 330. This can reduce the processing accuracy requirements of the enclosure portion 230 and the bonding portion 322, which is beneficial to improving assembly efficiency and reducing production costs.

[0117] According to some embodiments of this application, the functional device 370 is at least one of the following: a battery, a camera, and a display screen.

[0118] For example, the electronic device 10 of this application includes a printed circuit board 100 and a functional module 300. The functional module 300 includes a flexible circuit board 310 and a metal reinforcing plate 320, which are connected. The printed circuit board 100 has an enclosure portion 230, which is a metal component. The metal reinforcing plate 320 and the enclosure portion 230 cooperate, so that the metal reinforcing plate 320 not only reinforces the flexible circuit board 310, but also fixes the first connecting portion 210 and the second connecting portion 330, thereby eliminating the pre-pressure bracket in related technologies, achieving extreme thinning in the stacking thickness direction, and ensuring the connection reliability of the first connecting portion 210 and the second connecting portion 330 under stress environments such as drop. The enclosure portion 230 is a metal frame, which not only has a waterproof function, but also a reinforcing and shielding function, ensuring the reliability of the product.

[0119] For example, such as Figures 1 to 11 As shown, the metal reinforcing plate 320 includes a bonding portion 322, which includes two surrounding plates 326. Each surrounding plate 326 is connected to a hanging ear portion 324. The hanging ear portion 324 extends in a direction perpendicular to the metal reinforcing plate 320 to the printed circuit board 100. The portion of the printed circuit board 100 located around the first connecting portion 210 has a first positioning hole. Each hanging ear portion 324 has a second fixing hole. The first positioning hole and the second positioning hole match and are fixed by screws (i.e., fasteners 400), which ensures the stability of the first connecting portion 210 and the second connecting portion 330 after they are engaged. Disassembly can be completed by loosening the screws. This method combines the reinforcing steel sheet with the pre-compression bracket, reducing the number of parts and the stacking thickness, and eliminating the bottleneck of landing.

[0120] For example, the printed circuit board 100 has an enclosure portion 230, which is a metal frame and has an annular structure. The enclosure portion 230 has a first chamfer 232 on the side facing away from the printed circuit board 100. The first chamfer 232 is a rounded corner, which facilitates fastening and guidance. The enclosure portion 230 has a second flange 234 on the side facing the printed circuit board 100. The second flange 234 increases the welding area, achieving a reinforced welding effect. The second flange 234 can be directly welded to the printed circuit board 100 for sealing. The enclosure portion 230 also serves to position the metal reinforcing plate 320. During assembly, the metal reinforcing plate 320 is first positioned with the enclosure portion 230, and then the first connecting portion 210 and the second connecting portion 330 are fastened together. Therefore, the metal reinforcing plate 320 not only supports the flexible circuit board 310 but also secures the first connecting portion 210 and the second connecting portion 330 during fastening.

[0121] For example, such as Figures 12 to 23 As shown, the metal reinforcing plate 320 includes a bonding portion 322, which includes three surrounding plates 326, forming a three-sided enclosure structure. Alternatively, the bonding portion 322 may include two surrounding plates 326, i.e., a two-sided structure. The shape of the metal reinforcing plate 320 matches the flexible circuit board 310 of the functional module 300. The bonding portion 322 has a second chamfer 323 on the side facing the printed circuit board 100 to facilitate engagement with the metal frame. The interior of the metal reinforcing plate 320 has two semi-circular grooves (i.e., second slots 640), used for fixing with self-locking springs (i.e., connectors 350). There are two self-locking springs; the bottom of the self-locking spring (i.e., connecting section 352) is welded to the flexible circuit board 310. The connecting section 352 and the second connecting portion 330 are welded to the same side of the flexible circuit board 310, facilitating the arrangement of solder pads and soldering. The design of the self-locking springs on both sides allows for deformation under pressure from both sides. The flexible circuit board 310 is located between the two self-locking springs, which are used for locking after engagement.

[0122] For example, the spring piece 354 of the connector 350 is bent from the connecting section 352 to form a first latch 355 and a second latch 356. When the first latch 355 deforms, it will cause the second latch 356 of the spring piece 354 to deform, so as to achieve the purpose of the first latch 355 engaging with the first slot 630 and the second latch 356 engaging with the second slot 640. When released, the first latch 355 also releases, causing the second latch 356 to release.

[0123] For example, the enclosure portion 230 has an annular structure, and rectangular ribs are provided on both sides of the enclosure portion 230. A first slot 630 is formed below the ribs. The first slot 630 cooperates with the first fastening position 355 of the connector 350 for self-locking. A first chamfer 232 is provided on the side of the enclosure portion 230 away from the printed circuit board 100. The first chamfer 232 is a rounded corner and has the function of fastening and guiding.

[0124] For example, the metal reinforcing plate 320 and the flexible circuit board 310 are bonded together by foam with double-sided adhesive (i.e., elastic connection portion 360). Initially, the foam is not compressed, and there is a first gap between the metal reinforcing plate 320 and the flexible circuit board 310. During fastening, the metal reinforcing plate 320 first aligns and fastens with the enclosure portion 230, which can avoid the problem of misalignment and collapse of the second connection portion 330 of the functional module 300 and the first connection portion 210 on the printed circuit board 100. After alignment, the metal reinforcing plate 320 is pressed down, compressing the foam. A second gap exists between the metal reinforcing plate 320 and the flexible circuit board 310. The gap value of the second gap is smaller than that of the first gap. The side panel 326 of the metal reinforcing plate 320 begins to squeeze the self-locking spring, causing the self-locking spring to deform inward. The first latch 355 falls into the first slot 630 at the bottom of the protrusion of the enclosure 230, achieving locking. This prevents the second connecting part 330 on the flexible circuit board 310 and the first connecting part 210 on the printed circuit board 100 from easily loosening. Finally, the outer pressure part of the self-locking spring (i.e., the second latch 356) falls into the second slot 640 of the metal reinforcing plate 320, simultaneously pulling the metal reinforcing plate 320 to prevent it from springing back upward. During disassembly, a disassembly tool or flat tweezers can be used to pry open the metal reinforcing plate 320 from the bottom, and the surrounding plate 326 of the metal reinforcing plate 320 can be unlocked to disassemble the functional module 300 and the printed circuit board 100.

[0125] For example, such as Figures 24 to 32As shown, the metal reinforcing plate 320 and the flexible circuit board 310 are fixed together by double-sided adhesive (i.e., adhesive layer 500). The metal reinforcing plate 320 includes a bonding portion 322, which includes three surrounding plates 326. The bonding portion 322 has a three-sided structure. The surrounding plates 326 have openings 620, and the bonding portion 230 has protrusions (i.e., snap fasteners 610). The protrusions and openings 620 engage and lock together, providing good reliability and reducing the overall thickness. The bonding portion 230 of this application has a waterproof function and can be directly soldered to the printed circuit board 100. The side of the bonding portion 230 away from the printed circuit board 100 has a first chamfer 232, and the side of the surrounding plates 326 facing the printed circuit board 100 has a second chamfer 323. Both the first chamfer 232 and the second chamfer 323 are rounded corners, which have a guiding function. During fastening, the metal reinforcing plate 320 and the enclosure 230 are first positioned, guided, and fastened together, and then the plug and socket are fastened together. This prevents the plug and socket from being misaligned during fastening, which could lead to damage. The enclosure 230 has a square frame structure. Multiple protruding clips 610 of a certain height are provided around the enclosure 230. A second flange 234 is provided at the bottom of the enclosure 230 to increase the welding area and achieve a reinforcing welding effect. The enclosure 230 can be directly soldered onto the printed circuit board 100 and has a sealing function. The metal reinforcing plate 320 is square-shaped, and its dimensions match those of the enclosure 230. The metal reinforcing plate 320 has a three-sided structure, and each enclosure 326 of the metal reinforcing plate 320 has an opening 620. The opening 620 engages with the clips 610 of the enclosure 230 for fastening and locking. The enclosure 326 has a disassembly opening 325 on the side facing the printed circuit board 100. A tool can be used to pry up the enclosure 326 through the disassembly opening 325 to achieve disassembly. The metal reinforcing plate 320 and the flexible circuit board 310 are connected by double-sided adhesive (i.e., adhesive layer 500). Exemplarily, the enclosure 230 is a metal frame, such as made of copper alloy, stainless steel, or other materials. The enclosure 230 can enhance shielding performance and reduce signal interference of the functional module 300 (including interference of signals transmitted on the plug and socket to other external devices (e.g., power chips, etc.), as well as interference of external signal sources to the internal transmission signals of the plug and socket). In high-frequency application scenarios, the use of other shielding materials can be reduced.

[0126] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0127] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that, include: A printed circuit board, wherein a first connecting portion and an enclosing portion are provided on one side of the printed circuit board, the enclosing portion being a metal part, and the enclosing portion surrounding the first connecting portion; A functional module includes functional components and a flexible circuit board. The functional components are electrically connected to the printed circuit board through the flexible circuit board. One end of the flexible circuit board is provided with a second connection portion, and a metal reinforcing plate is provided on one side of the second connection portion. When the second connecting portion is engaged with the first connecting portion, the enclosing portion is located between the second connecting portion and the metal reinforcing plate, and one of the portion of the printed circuit board located around the first connecting portion and the enclosing portion is connected to the metal reinforcing plate.

2. The electronic device according to claim 1, characterized in that, The metal reinforcing plate includes an adhesive portion that covers the second connecting portion; When the portion of the printed circuit board located around the first connecting portion is connected to the metal reinforcing plate, the metal reinforcing plate further includes a hanging ear portion, which is disposed on both sides of the fitting portion and is connected to the printed circuit board. When the enclosure is connected to the metal reinforcing plate, the fitting part is connected to the enclosure.

3. The electronic device according to claim 2, characterized in that, The flexible circuit board is located between the metal reinforcing plate and the second connecting portion.

4. The electronic device according to claim 2, characterized in that, The connection structure between the portion of the printed circuit board located around the first connecting portion and one of the enclosure portion and the metal reinforcing plate includes any one or a combination of the following: snap-fit ​​connection, magnetic connection, and fastening connection by fasteners.

5. The electronic device according to claim 4, characterized in that, When the fitting part and the enclosure part are snapped together, one of the fitting part and the enclosure part is provided with a buckle, and the other is provided with an opening, and the buckle is snapped into the opening.

6. The electronic device according to claim 4, characterized in that, When the fitting part and the enclosure part are snapped together, the flexible circuit board is also provided with a connector, and the fitting part and the enclosure part are snapped together by the connector.

7. The electronic device according to claim 6, characterized in that, The enclosing portion is provided with a first slot, and the fitting portion is provided with a second slot; The connector includes a connecting section and a spring piece. The connecting section is connected to the flexible circuit board. The spring piece is bent from the connecting section to form a first latch and a second latch. The first latch engages with the first slot, and the second latch engages with the second slot. Along the direction from the flexible circuit board to the printed circuit board, the second slot is closer to the printed circuit board than the first slot.

8. The electronic device according to claim 7, characterized in that, The functional module also includes: An elastic connection portion is provided between the flexible circuit board and the metal reinforcing plate.

9. The electronic device according to claim 2, characterized in that, Along the direction from the flexible circuit board to the printed circuit board, the height of the bonding portion is higher than the height of the second connecting portion, and the height of the enclosing portion is higher than the height of the first connecting portion; and / or When the bonding portion is connected to the enclosure portion, the bonding portion is arranged at a distance from the printed circuit board.

10. The electronic device according to any one of claims 1 to 9, characterized in that, The functional device is at least one of the following: battery, camera, and display screen.