Electronic device

Abstract

The utility model discloses electronic equipment, and belongs to the technical field of electronic equipment. The connecting base is arranged on the side, facing the screen module, of the first circuit board, so that the first flexible circuit assembly of the screen module can be directly connected with the connecting base and does not need to be wound to or penetrate through the other side of the first circuit board. Therefore, when a technician disassembles the screen module, the connection between the first flexible circuit assembly and the connecting seat can be directly separated from the screen side, and then the disassembly of the screen module is completed. Compared with the prior art that the rear cover needs to be disassembled when the screen module is disassembled, the electronic equipment has the advantages that the step of disassembling the rear cover is omitted, the complexity of the maintenance process is reduced, the maintenance time is shortened, the equipment damage risk caused by additionally disassembling the rear cover is effectively avoided, and the reliability of product maintenance is remarkably improved.

Description

electronic devices Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to an electronic device. Background Technology

[0002] The display screen is a crucial interactive component in electronic devices. It not only displays information but also serves as the primary interface for user interaction. In daily use, display screens are frequently damaged due to various reasons such as accidental drops, pressure, or prolonged use, leading to a growing demand for display screen repair and replacement.

[0003] Currently, most electronic devices employ a specific connection design for their display screens. Specifically, the flexible printed circuit board (FPC) on the display screen connects to a connector on a small adapter board located on the back cover of the electronic device, with the connector interface typically facing towards the back cover. This design allows for more efficient use of limited internal space and improves the integration of the electronic device.

[0004] However, due to the location of the connector interface, technicians must first remove the phone's back cover to access the connector interface before they can perform repair operations such as screen replacement. This additional disassembly step significantly increases the complexity of the repair process. Summary of the Invention

[0005] This application provides an electronic device that can reduce the complexity of display screen repair to a certain extent. The technical solution is as follows:

[0006] In a first aspect, an electronic device is provided, comprising:

[0007] Screen module, mid-frame, and first circuit board:

[0008] The screen module is assembled on one side of the mid-frame, and the screen module has a first flexible circuit assembly;

[0009] The first circuit board is located on the side of the middle frame away from the screen module. The first circuit board is provided with a connector, which is located on the side of the first circuit board facing the screen module. The first flexible circuit assembly is connected to the connector.

[0010] In the technical solution provided in this application, by placing the connector on the side of the first circuit board facing the screen module, the first flexible circuit component of the screen module can be directly connected to the connector without needing to go around or pass through the other side of the first circuit board. This allows technicians to directly separate the connection between the first flexible circuit component and the connector from the screen side when disassembling the screen module, thus completing the removal of the screen module. Compared to traditional electronic devices where the back cover needs to be removed before disassembling the screen module, this application eliminates the back cover removal step, reducing the complexity of the repair process, shortening repair time, and effectively avoiding the risk of equipment damage caused by the additional removal of the back cover, significantly improving the reliability of product repair.

[0011] In some possible implementations, the mid-frame has a through-hole through which the first flexible circuit assembly connects to the connector.

[0012] In the technical solution provided in this application, the through hole in the middle frame can provide a wire passage for the first flexible circuit assembly, ensuring a reliable connection between the flexible circuit assembly and the connector, while avoiding excessive bending of the wires or spatial interference, thus improving assembly efficiency.

[0013] In some possible implementations, the orthographic projection of the connector on the target plane lies within the orthographic projection of the through hole on the target plane; the target plane is a display plane parallel to the screen module.

[0014] The technical solution provided in this application ensures that the flexible circuit assembly can pass more accurately through the through hole on the middle frame and precisely align with the connector, reducing positioning errors that may occur during assembly. Simultaneously, the edge of the through hole will not interfere with the connection between the flexible circuit assembly and the connector, ensuring a smooth installation process and avoiding potential damage risks caused by friction or other physical obstacles.

[0015] In some possible implementations, the first flexible circuit assembly extends in a helical bend.

[0016] In the technical solution provided in this application, the spiral bending and extending design allows the first flexible circuit assembly to be compactly arranged inside the electronic device under normal conditions, thereby saving space; while when disassembling the screen module, the flexible circuit assembly can be stretched, providing greater operating space and flexibility for maintenance operations, and significantly improving maintenance efficiency.

[0017] In some possible implementations, the interface plane of the connector is parallel to the display plane of the screen module, and the end of the first flexible circuit assembly is inserted into the connector in a direction perpendicular to the interface plane.

[0018] In the technical solution provided in this application, the insertion and removal of flexible circuit components can be completed more quickly during maintenance or component replacement, which saves time and further reduces the possibility of potential damage to electronic equipment, thereby improving the user's maintenance experience and the overall reliability of electronic equipment.

[0019] In some possible implementations, the middle frame includes an outer frame and a middle plate, the outer frame surrounding the outer periphery of the middle plate;

[0020] The through hole is located in the middle plate.

[0021] The technical solution provided in this application makes full use of the through holes in the middle plate as a signal transmission channel, enabling the first flexible circuit assembly to complete the electrical connection with the connector via the shortest path. This not only simplifies the internal wiring structure but also effectively reduces signal loss during transmission, thereby improving the overall performance of the electronic device.

[0022] In some possible implementations, the electronic device further includes an adhesive material located between the screen module and the middle plate, the adhesive material being distributed along the edge of the screen module, and the screen module being fixed to the middle plate by the adhesive material.

[0023] In the technical solution provided in this application, the adhesive can be a heat-repair adhesive. This type of adhesive not only provides strong adhesion, ensuring that the screen module is firmly attached to the mid-plate, but also allows for easy removal by heating when the screen module needs repair or replacement, without damaging the screen module or mid-plate. It also reduces the risk of component damage due to forced disassembly.

[0024] In some possible implementations, the electronic device further includes a sealing structure through which the screen module and the mid-frame are sealed.

[0025] In the technical solution provided in this application, the sealing structure not only provides excellent waterproof and dustproof performance, but also effectively enhances the bonding strength between the screen module and the mid-frame, ensuring that the device can maintain stability and reliability when subjected to external impact or vibration.

[0026] In some possible implementations, the electronic device further includes a second circuit board and a second flexible circuit assembly, the two ends of the second flexible circuit assembly being electrically connected to the first circuit board and the second circuit board, respectively.

[0027] In the technical solution provided in this application, the second circuit board, also known as the motherboard, is the core control unit of the electronic device, responsible for handling the main computational and control functions of the electronic device. The screen module is connected to the first circuit board via a first flexible wiring assembly, and the first circuit board is then connected to the second circuit board via a second flexible wiring assembly. This layered connection design allows the screen module to indirectly transmit signals and make electrical connections with the motherboard through the first circuit board. This not only simplifies the wiring structure but also improves the flexibility of assembly and maintenance.

[0028] In some possible implementations, the electronic device further includes a battery located on the side of the mid-frame opposite to the screen module and distributed between the first circuit board and the second circuit board.

[0029] In the technical solution provided in this application, by arranging the battery between the first circuit board and the second circuit board, the internal space of the electronic device can be fully utilized, making the internal structure of the electronic device more compact, thereby helping to reduce the overall thickness of the electronic device.

[0030] In some possible implementations, the first circuit board, the battery, and the second circuit board are arranged sequentially along a first direction; in the first direction, the through hole is located in the end region of the middle plate and is positioned directly opposite the connector of the first circuit board.

[0031] In the technical solution provided in this application, by setting the through hole in the end area of ​​the middle plate and facing the connector, the routing path of the first flexible circuit assembly is minimized, bending stress is reduced, and signal transmission stability is improved.

[0032] In some possible implementations, the first circuit board is a small board, and the first circuit board is fixed to the side of the middle frame opposite to the screen module.

[0033] In the technical solution provided in this application, the first circuit board is designed as a small board (or sub-board), which is only responsible for the transmission of drive signals for the screen module, while the main control circuit can be integrated on the second circuit board (or main board), thereby reducing the complexity of the main board. In addition, if the screen module or flexible circuit components are damaged, only the small board (first circuit board) needs to be replaced, without replacing the entire main board, thus reducing maintenance costs.

[0034] In some possible implementations, the electronic device further includes a rear cover plate that is detachably connected to the side of the mid-frame opposite to the screen module.

[0035] In the technical solution provided in this application, the removable design of the rear cover allows users or technicians to easily access internal components of the device, such as the battery, the first circuit board, and the second circuit board. This simplifies the maintenance process, such as replacing the battery or other internal components, improving maintenance efficiency and reducing maintenance time and costs. Furthermore, users can change the rear cover to different materials, colors, or styles according to their personal preferences, increasing product personalization options and enhancing the user experience and satisfaction. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0038] Figure 2 is an exploded view of the electronic device shown in Figure 1;

[0039] Figure 3 is a schematic diagram of the structure of an electronic device (not shown) provided in an embodiment of this application, showing a display module.

[0040] Figure 4 is a schematic diagram of the structure of a first circuit board provided in an embodiment of this application;

[0041] Figure 5 is a schematic diagram of the structure of a middle frame provided in an embodiment of this application;

[0042] Figure 6 is a schematic diagram of the structure of a middle frame and a first circuit board provided in an embodiment of this application. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] The directional terms used in the embodiments of this application, such as "upper", "lower", and "side", are generally based on the orientation shown in the figure. These directional terms are used only to describe the relationship between structures more clearly, and not to describe absolute orientation.

[0045] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.

[0046] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0047] This application provides an electronic device 000, which can be a mobile phone, tablet, computer, television, game console, etc. Please refer to Figures 1, 2, 3, and 4. Figure 1 is a structural schematic diagram of an electronic device provided in this application embodiment; Figure 2 is an exploded view of the electronic device shown in Figure 1; Figure 3 is a structural schematic diagram of an electronic device provided in this application embodiment (without a display module); and Figure 4 is a structural schematic diagram of a first circuit board provided in this application embodiment. The electronic device 000 may include: a screen module 100, a mid-frame 200, and a first circuit board 300.

[0048] The screen module 100 in the electronic device 000 can be mounted on one side of the mid-frame 200, and the screen module 100 can have a first flexible circuit assembly 101.

[0049] It should be noted that the flexible circuit assembly here is typically a flexible printed circuit board (FPC). Flexible circuit boards are thin, light, and flexible, effectively saving internal space in the electronic device 000 while improving its reliability. In this embodiment, the first flexible circuit assembly 101, through its flexibility, can better adapt to the design requirements of the internal structure of the electronic device 000 and realize signal transmission and electrical connection between the screen module 100 and other components.

[0050] The first circuit board 300 in the electronic device 000 can be located on the side of the middle frame 200 away from the screen module 100. The first circuit board 300 is provided with a connector 301, and the connector 301 is located on the side of the first circuit board 300 facing the screen module 100. The first flexible circuit assembly 101 can be connected to the connector 301.

[0051] Here, the first circuit board 300 is typically a small board (or sub-board), mainly used to carry the driving circuit of the screen module 100; the connector 301 is typically a connector. Specifically, the connector 301 can be a BTB (Board to Board) connector. In particular, the connector 301, as an important component on the first circuit board 300, is mainly used to achieve a reliable connection with the first flexible circuit assembly 101 in the screen module 100. BTB connectors have the advantages of easy insertion and removal and simple installation, which facilitates the production and assembly process and provides convenience for later maintenance and component replacement.

[0052] In this embodiment, by positioning the connector 301 on the side of the first circuit board 300 facing the screen module 100, the first flexible circuit assembly 101 of the screen module 100 can be directly connected to the connector 301 without needing to go around or pass through the other side of the first circuit board 300. This allows technicians to directly separate the connection between the first flexible circuit assembly 101 and the connector 301 from the screen side when disassembling the screen module 100, thus completing the removal of the screen module 100. Compared to traditional electronic devices where the back cover needs to be removed before disassembling the screen module 100, this application eliminates the back cover removal step, reducing the complexity of the repair process, shortening repair time, and effectively avoiding the risk of equipment damage caused by the additional removal of the back cover, significantly improving the reliability of product repair.

[0053] In summary, this application provides an electronic device including a screen module, a mid-frame, and a first circuit board. By placing the connector on the side of the first circuit board facing the screen module, the first flexible circuit assembly of the screen module can be directly connected to the connector without needing to go around or pass through the other side of the first circuit board. This allows technicians to directly separate the connection between the first flexible circuit assembly and the connector from the screen side when disassembling the screen module, thus completing the removal of the screen module. Compared to traditional electronic devices where the back cover needs to be removed before disassembling the screen module, this application eliminates the back cover removal step, reducing the complexity of the repair process, shortening repair time, and effectively avoiding the risk of equipment damage caused by the additional removal of the back cover, significantly improving the reliability of product repair.

[0054] In this embodiment of the application, as shown in Figures 2 and 3, the middle frame 200 in the electronic device 000 may have a through hole K, and the first flexible circuit assembly 101 in the screen module 100 may pass through the through hole K and be connected to the connector 301.

[0055] In this case, the through hole K in the middle frame 200 can provide a wire passage for the first flexible circuit assembly 101, ensuring a reliable connection between the flexible circuit assembly 101 and the connector 301, while avoiding excessive bending of the wires or spatial interference, and improving assembly efficiency.

[0056] Optionally, please refer to Figure 6, which is a structural schematic diagram of a mid-frame and a first circuit board provided in an embodiment of this application. The orthographic projection of the connector 301 in the first circuit board 300 onto the target plane S is located within the orthographic projection of the through hole K onto the target plane S. The target plane S is a display plane parallel to the screen module 100.

[0057] In this configuration, the flexible circuit assembly 101 can more accurately pass through the through hole K on the middle frame 200 and precisely align with the connector 301, reducing potential positioning errors during assembly. Furthermore, because the positional relationship is clear and fixed, the installation process becomes more intuitive and simple, requiring no additional adjustments or calibrations, thereby improving production efficiency. Simultaneously, the edge of the through hole K will not interfere with the connection between the flexible circuit assembly 101 and the connector 301, ensuring a smooth installation process and avoiding potential damage risks caused by friction or other physical obstacles.

[0058] In the embodiments of this application, as shown in Figures 2 and 3, the first flexible circuit assembly 101 in the screen module 100 can extend in a spiral bending manner.

[0059] In this case, the spiral bending and extending design allows the first flexible circuit assembly 101 to be compactly arranged inside the electronic device 000 under normal conditions, thereby saving space; while when disassembling the screen module 100, the flexible circuit assembly 101 can be stretched, providing greater operating space and flexibility for maintenance operations, and significantly improving maintenance efficiency.

[0060] Optionally, the interface plane of the connector 301 in the first circuit board 300 is parallel to the display plane of the screen module 100, and the end of the first flexible circuit assembly 101 is inserted into the connector 301 in a direction perpendicular to the interface plane.

[0061] In this configuration, by keeping the interface plane of the connector 301 on the first circuit board 300 parallel to the display plane of the screen module 100, and by inserting the end of the first flexible circuit assembly 101 into the connector 301 in a direction perpendicular to the interface plane, the assembly and maintenance process is greatly simplified. This design not only clarifies the mating direction between the flexible circuit assembly 101 and the connector 301, making operation more intuitive and convenient, but also significantly reduces the difficulty and complexity of operation. Furthermore, during maintenance or component replacement, the insertion and removal of the flexible circuit assembly 101 can be completed more quickly, saving time and further reducing the possibility of potential damage to the electronic device 000, thus improving the user's maintenance experience and the overall reliability of the electronic device 000.

[0062] In this embodiment of the application, please refer to FIG5, which is a schematic diagram of the structure of a mid-frame provided in this embodiment of the application. The mid-frame 200 in the electronic device 000 may include: an outer frame 201 and a mid-plate 202, with the outer frame 201 surrounding the outer periphery of the mid-plate 202.

[0063] The through hole K can be located on the middle plate 202.

[0064] In this configuration, the first flexible wiring assembly 101 can connect to the connector 301 via the through hole K on the middle plate 202. This design fully utilizes the through hole K on the middle plate 202 as a signal transmission channel, enabling the first flexible wiring assembly 101 to complete the electrical connection with the connector 301 via the shortest path. This not only simplifies the internal wiring structure but also effectively reduces signal loss during transmission, improving the overall performance of the electronic device 000.

[0065] Optionally, as shown in Figures 2 and 5, the electronic device 000 may further include an adhesive 400 located between the screen module 100 and the middle plate 202, the adhesive 400 being distributed along the edge of the screen module 100, and the screen module 100 being fixed to the middle plate 202 by the adhesive 400.

[0066] For example, the adhesive 400 can be a heat repair adhesive. This type of adhesive not only provides strong adhesion to ensure that the screen module 100 is firmly attached to the middle plate 202, but can also be easily removed by heating when the screen module 100 needs to be repaired or replaced, without causing damage to the screen module 100 or the middle plate 202.

[0067] In this context, the application of heat-repair adhesive significantly simplifies the disassembly process, making maintenance operations more convenient and efficient, while reducing the risk of component damage due to forced disassembly. Furthermore, this bonding method helps maintain the device's slim design while ensuring excellent sealing performance, effectively preventing dust and moisture from entering the electronic device and improving its overall reliability and durability.

[0068] In this embodiment of the application, as shown in FIG2, the electronic device 000 may further include a sealing structure 500. The screen module 100 and the mid-frame 200 can be sealed together by the sealing structure 500.

[0069] Here, the sealing structure 500 can be achieved by screen potting to seal the screen module 100 and the mid-frame 200. Screen potting, as a highly efficient sealing technology, not only provides excellent waterproof and dustproof performance, but also effectively enhances the bonding strength between the screen module 100 and the mid-frame 200, ensuring that the device maintains stability and reliability when subjected to external impacts or vibrations.

[0070] Optionally, as shown in Figure 2, the electronic device 000 may further include: a second circuit board 600 and a second flexible circuit assembly 700, the two ends of which are electrically connected to the first circuit board 300 and the second circuit board 600, respectively.

[0071] It should be noted that the second circuit board 600, also known as the motherboard, is the core control unit of the electronic device 000, responsible for handling the main calculation and control functions of the electronic device 000. The screen module 100 is connected to the first circuit board 300 through the first flexible wiring assembly 101, and the first circuit board 300 is in turn connected to the second circuit board 600 (motherboard) through the second flexible wiring assembly 700. This layered connection design allows the screen module 100 to indirectly transmit signals and make electrical connections with the motherboard through the first circuit board 300. This not only simplifies the wiring structure but also improves the flexibility of assembly and maintenance. For example, during maintenance, a single module can be replaced or debugged without disassembling the entire system.

[0072] In this embodiment of the application, as shown in FIG2, the electronic device 000 may further include a battery 800, which is located on the side of the middle frame 200 away from the screen module 100 and distributed between the first circuit board 300 and the second circuit board 600.

[0073] In this case, the internal space of the electronic device 000 can be fully utilized. By arranging the battery 800 between the first circuit board 300 and the second circuit board 600, the internal structure of the electronic device 000 can be made more compact, thereby helping to reduce the overall thickness of the electronic device 000.

[0074] Optionally, as shown in Figure 2, the first circuit board 300, the battery 800, and the second circuit board 600 are arranged sequentially along the first direction X; and in the first direction X, the through hole K is provided in the end area of ​​the middle plate 202 and is directly opposite to the connecting seat 301 of the first circuit board 300.

[0075] In this case, by placing the through hole K in the end region of the middle plate 202 and positioning it directly opposite the connector 301, the routing path of the first flexible circuit assembly 101 is minimized, bending stress is reduced, and signal transmission stability is improved.

[0076] In this embodiment, the first circuit board 300 can be a small board, and the first circuit board 300 is fixed to the side of the middle frame 200 away from the screen module 100.

[0077] In this configuration, the first circuit board 300 is designed as a smaller board (or secondary board), responsible only for transmitting drive signals to the screen module 100. The main control circuit can be integrated onto the second circuit board 600 (or main board), thus reducing the complexity of the main board. Furthermore, if the screen module 100 or the flexible circuit assembly 101 is damaged, only the smaller board (first circuit board 300) needs to be replaced, without replacing the entire main board, reducing maintenance costs.

[0078] Optionally, as shown in Figure 2, the electronic device 000 may further include a rear cover 900, which is detachably connected to the side of the mid-frame 200 away from the screen module 100.

[0079] In this context, the removable design of the rear cover 900 allows users or technicians easy access to internal components such as the battery 800, the first circuit board 300, and the second circuit board 600. This design greatly simplifies the maintenance process, such as replacing the battery 800 or other internal components, improving maintenance efficiency and reducing repair time and costs. Furthermore, users can replace the rear cover 900 with different materials, colors, or styles according to their personal preferences, increasing product personalization options and enhancing user experience and satisfaction.

[0080] In summary, this application provides an electronic device including a screen module, a mid-frame, and a first circuit board. By placing the connector on the side of the first circuit board facing the screen module, the first flexible circuit assembly of the screen module can be directly connected to the connector without needing to go around or pass through the other side of the first circuit board. This allows technicians to directly separate the connection between the first flexible circuit assembly and the connector from the screen side when disassembling the screen module, thus completing the removal of the screen module. Compared to traditional electronic devices where the back cover needs to be removed before disassembling the screen module, this application eliminates the back cover removal step, reducing the complexity of the repair process, shortening repair time, and effectively avoiding the risk of equipment damage caused by the additional removal of the back cover, significantly improving the reliability of product repair.

[0081] In this application, it should be understood that the terms “first”, “second”, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0082] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0083] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

[0084] The above is merely for the purpose of enabling those skilled in the art to understand the technical solution of this application, and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims

1. An electronic device, characterized in that, include: Screen module (100), mid-frame (200) and first circuit board (300): The screen module (100) is assembled on one side of the mid-frame (200), and the screen module (100) has a first flexible circuit assembly (101); the first circuit board (300) is located on the side of the mid-frame (200) away from the screen module (100), and the first circuit board (300) is provided with a connector (301), the connector (301) is located on the side of the first circuit board (300) facing the screen module (100), and the first flexible circuit assembly (101) is connected to the connector (301).

2. The electronic device according to claim 1, characterized in that, The middle frame (200) has a through hole (K), through which the first flexible circuit assembly (101) passes and connects to the connector (301).

3. The electronic device according to claim 2, characterized in that, The orthographic projection of the connector (301) on the target plane is located within the orthographic projection of the through hole (K) on the target plane; the target plane is a display plane parallel to the screen module (100).

4. The electronic device according to claim 1, characterized in that, The first flexible circuit assembly (101) extends in a spiral bend.

5. The electronic device according to claim 1, characterized in that, The interface plane of the connector (301) is parallel to the display plane of the screen module (100), and the end of the first flexible circuit assembly (101) is inserted into the connector (301) in a direction perpendicular to the interface plane.

6. The electronic device according to claim 2, characterized in that, The middle frame (200) includes an outer frame (201) and a middle plate (202), wherein the outer frame (201) is distributed around the outer periphery of the middle plate (202); wherein the through hole (K) is located in the middle plate (202).

7. The electronic device according to claim 6, characterized in that, The electronic device further includes an adhesive (400) located between the screen module (100) and the middle plate (202), the adhesive (400) being distributed along the edge of the screen module (100), and the screen module (100) being fixed to the middle plate (202) by the adhesive (400).

8. The electronic device according to claim 1, characterized in that, The electronic device further includes a sealing structure (500), through which the screen module (100) and the middle frame (200) are sealed.

9. The electronic device according to claim 6, characterized in that, The electronic device further includes a second circuit board (600) and a second flexible circuit assembly (700), the two ends of which are electrically connected to the first circuit board (300) and the second circuit board (600), respectively.

10. The electronic device according to claim 9, characterized in that, The electronic device further includes a battery (800), which is located on the side of the middle frame (200) away from the screen module (100) and distributed between the first circuit board (300) and the second circuit board (600).

11. The electronic device according to claim 10, characterized in that, The first circuit board (300), the battery (800) and the second circuit board (600) are arranged sequentially along a first direction (X); in the first direction (X), the through hole (K) is provided in the end region of the middle plate (202) and is directly opposite to the connector (301) of the first circuit board (300).

12. The electronic device according to any one of claims 1 to 11, characterized in that, The first circuit board (300) is a small board, and the first circuit board (300) is fixed to the side of the middle frame (200) away from the screen module (100).

13. The electronic device according to claim 1, characterized in that, The electronic device further includes a rear cover (900), which is detachably connected to the side of the mid-frame (200) opposite to the screen module (100).

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