An electronic device

Abstract

The application provides an electronic device, and relates to the technical field of terminals. The electronic device comprises a middle frame, a shell assembly and a loudspeaker assembly; the middle frame comprises a main body part, a middle plate and a retaining wall part; the main body part is arranged between the middle plate and the shell assembly; the retaining wall part is arranged between the middle plate and the shell assembly; the main body part, the middle plate, the retaining wall part and the shell assembly enclose a first cavity; the loudspeaker assembly is arranged in the first cavity, so that the first cavity serves as a back cavity of the loudspeaker assembly; and the retaining wall part separates the first cavity from a battery area of the electronic device. The back cavity arranged for the loudspeaker assembly in the electronic device not only avoids the problem that the vibration of the battery area caused by the mode that the loudspeaker assembly uses the whole machine space as an open back cavity, but also avoids the problem that the vibration of other non-cavity areas causes the battery cover and the display screen to vibrate, and further avoids the problem that the mode that the loudspeaker assembly uses a large-volume closed cavity as a back cavity causes the problem of affecting the thinness of the electronic device.

Description

Technical Field

[0001] This application relates to the field of terminal technology, and more particularly to an electronic device. Background Technology

[0002] Speakers are commonly found in electronic devices. A loudspeaker is a device that converts electrical signals into sound waves, and it is an important component of the audio system of electronic devices. While a loudspeaker itself can only vibrate, it needs to be fitted with a suitable cavity to effectively transmit sound signals. The volume and shape of the cavity affect the sound wave propagation effect.

[0003] Speakers in electronic devices typically consist of an upper speaker and a lower speaker. The cavity for the upper speaker in an electronic device can be an open rear cavity, meaning the entire internal space of the device is used as the rear cavity. However, this can easily lead to vibrations affecting the battery cover or display screen. The cavity for the lower speaker can be a sealed cavity, meaning the device has a separate enclosed space for the lower speaker. However, this requires a larger cavity space, which cannot meet the requirements for a thinner and lighter design. In other words, a suitable cavity design method is needed for speakers in electronic devices. Summary of the Invention

[0004] This application provides an electronic device that offers a suitable cavity configuration for a speaker assembly. This avoids issues such as vibration of the battery area that might occur when the entire speaker assembly is used as an open rear cavity, as well as vibration of the battery cover and display screen in other non-cavity areas. Furthermore, it avoids the impact on the thinness and lightness of the electronic device that might result from using a large-volume sealed cavity as the rear cavity for the speaker assembly. This application fulfills the requirement for a thinner and lighter electronic device.

[0005] In a first aspect, embodiments of this application provide an electronic device, including: a mid-frame, a housing assembly, and a speaker assembly; the mid-frame includes a main body portion, a middle plate, and a retaining wall portion; the main body portion is disposed between the middle plate and the housing assembly; the retaining wall portion is disposed between the middle plate and the housing assembly; the main body portion, the middle plate, the retaining wall portion, and the housing assembly form a first cavity, and the speaker assembly is disposed in the first cavity, so that the first cavity serves as the rear cavity of the speaker assembly; the retaining wall portion isolates the first cavity from the battery area of ​​the electronic device, so that the sound or vibration generated by the speaker assembly in the first cavity is isolated from the battery area.

[0006] The electronic device shown in this application uses a first cavity isolated from the battery area as the rear cavity of the speaker assembly. This not only avoids the problem of vibration of the battery area that may be caused by using the entire space of the speaker assembly as an open rear cavity, but also avoids the problem of vibration of the battery cover and display screen corresponding to other non-cavity areas. Furthermore, it avoids the problem of affecting the thinness and lightness of the electronic device that may be caused by using a large-volume sealed cavity as the rear cavity of the speaker assembly.

[0007] In one implementation, one end of the main body is connected to the middle plate, and the other end of the main body abuts against the outer casing assembly; one end of the baffle is connected to the middle plate, and the other end of the baffle abuts against the outer casing assembly. By abutting both the main body and the baffle in the middle frame against the outer casing assembly, an independent cavity can be formed on the side of the baffle away from the battery area. This cavity serves as the rear cavity of the speaker assembly. Since this cavity is isolated from the battery area and can accommodate other electronic components, it avoids the problem of vibration in the battery area that might occur with an open rear cavity, as well as the problem of vibration in the battery cover and display screen corresponding to other non-cavity areas. It also avoids the problem of affecting the thinness and lightness of electronic devices that might occur with a large-volume sealed cavity as the rear cavity.

[0008] In one implementation, the outer casing assembly and the middle plate are arranged side by side along a first direction, wherein the first direction is the thickness direction of the electronic device; the outer casing assembly includes a battery cover and / or a first display screen, the first display screen including an outer screen corresponding to a foldable electronic device. Using this implementation, the embodiments of this application can be applied to candybar electronic devices where the outer casing assembly is a battery cover, and also to foldable electronic devices where the outer casing assembly includes both a battery cover and an outer screen. In other words, the embodiments of this application are applicable to multiple types of electronic devices.

[0009] In one implementation, the height of the main body is the same as the height of the retaining wall along the first direction. By using this implementation, and setting the height of the retaining wall to be the same as the height of the main body, the retaining wall can isolate the first cavity from the battery area, thus preventing vibration of the battery area.

[0010] In one implementation, the housing assembly includes an extension protruding from the surface of the housing assembly facing the middle plate, wherein the extension abuts against a retaining wall portion; along a first direction, the main body portion has a first height, the retaining wall portion has a second height, and the extension portion has a third height, the sum of the second height and the third height being equal to the first height. Using this implementation, based on the combination of the retaining wall portion and the extension portion, the first cavity and the battery area are isolated, preventing vibration of the battery area.

[0011] In one implementation, the electronic device further includes a first seal; the first seal is disposed between the main body and the housing assembly, and between the main body and the retaining wall portion, to seal the first cavity. This implementation further improves the sealing performance of the first cavity, preventing vibration in the battery area, as well as in other non-cavity areas such as the housing assembly and the display screen.

[0012] In one implementation, the electronic device further includes a connecting portion and a flexible circuit board (FPC); the connecting portion extends through at least one of the main body, the middle plate, the retaining wall, the first seal, and the extension; the FPC passes through the connecting portion. Using this implementation, embodiments of this application provide various ways to arrange the connecting portion, providing space for circuit connections within the first cavity.

[0013] In one implementation, the electronic device further includes a second seal; the second seal is used to fill the connecting portion to secure the FPC and seal the first cavity. By providing a second seal in the connecting portion, this implementation further enhances the sealing performance of the first cavity, preventing vibration of the battery area, as well as other non-cavity areas such as the housing components and display screen.

[0014] In one implementation, the electronic device further includes a printed circuit board (PCB) and a board-to-board (BTB) connector; the PCB is disposed on the surface of the middle board facing the housing assembly; the BTB connector is disposed on the surface of the PCB facing the housing assembly; one end of the FPC passes through the connecting portion; the other end of the FPC is connected to the BTB connector to connect to the PCB. This implementation illustrates a specific manner of circuit connections within the first cavity.

[0015] In one implementation, the surface of the middle plate facing away from the outer casing assembly and the second display screen form a second cavity. The FPC passes through one end of the connecting portion and enters at least one of the battery region, the second cavity, and the hinge assembly. The second display screen includes an inner screen corresponding to a foldable electronic device. This implementation illustrates a specific method by which the FPC forms a pathway.

[0016] In one implementation, the electronic device further includes a stepped portion; the stepped portion is disposed on the surface of the connecting portion; the stepped portion includes a first inclined surface, the first inclined surface being used to support the FPC, so as to reduce the bending angle when the FPC passes through the connecting portion. This implementation can provide support for the FPC, preventing damage to the FPC due to excessive bending angle.

[0017] In one implementation, if the FPC passes through the connecting portion into the battery region, the FPC is located on the battery surface facing the housing assembly; or, the FPC is located on the battery surface away from the housing assembly. This implementation demonstrates multiple arrangements of the FPC in the battery region, enabling the FPC in this embodiment to be applied to different assembly scenarios.

[0018] In one implementation, the connecting portion includes a first groove disposed in the retaining portion; the first groove is located on the side of the retaining portion facing the housing assembly, and the first groove is recessed in a direction away from the housing assembly; the FPC passes through the first groove; a second seal fills the first groove to fix the FPC and seal the first cavity. By using this implementation, by setting the connecting portion as the first groove, space is provided for circuit connections in the rear cavity of the speaker assembly, allowing the first cavity to function as an independent cavity.

[0019] In one implementation, a second seal fills a first groove to form a flattened first surface on the side of the retaining wall portion facing the housing assembly; a portion of the first seal corresponding to the retaining wall portion is disposed on the first surface to seal the first cavity. This implementation illustrates a configuration of the first seal that improves the sealing performance of the first cavity.

[0020] In one implementation, a portion of the retaining wall extends along the length of the electronic device to form an extension; the side of the extension facing the housing assembly includes a first groove and a protrusion, with the protrusion located on both sides of the first groove; a second seal fills the first groove; a portion of the first seal corresponding to the extension is disposed on the surface of the protrusion facing the housing assembly; wherein the portion of the first seal corresponding to the extension forms a misaligned structure with the second seal, so that the side of the second seal facing the housing assembly and the side of the first seal facing the housing assembly form a leveled second surface, the second surface being connected to the housing assembly to seal the first cavity. This implementation demonstrates a configuration of the first seal that improves the sealing performance of the first cavity.

[0021] In one implementation, the extension extends toward the interior of the first cavity; the portion of the first seal corresponding to the extension includes: an L-shaped structure symmetrically arranged based on the central region of the first groove, the L-shaped structure including a first side and a second side; the first side forms a first projection area on the extension, the first projection area being formed by extending a first width along the length direction of the electronic device from the edge of the protrusion facing away from the main body; the second side forms a second projection area on the extension, the second projection area being formed by extending a second width along the width direction of the electronic device from the edge of the protrusion near the first groove; the second seal matches the shape of the first seal to form a second surface. This implementation illustrates a specific arrangement of the misaligned structure in the first seal, which improves the sealing performance of the first cavity.

[0022] In one implementation, the connecting portion includes a second groove disposed in the extension portion; the second groove is located on the side of the extension portion opposite to the housing assembly, and the second groove is recessed in a direction close to the housing assembly; the FPC passes through the second groove; a second seal fills the second groove to fix the FPC and seal the first cavity. Using this implementation, by setting the connecting portion as the second groove, space is provided for circuit connections in the rear cavity of the speaker assembly, allowing the first cavity to function as an independent cavity.

[0023] In one implementation, the connecting portion includes a first through hole disposed in the retaining wall portion; the first through hole extends through the retaining wall portion along the length direction of the electronic device; the FPC passes through the first through hole; and a second sealing member fills the first through hole to fix the FPC and seal the first cavity. By using this implementation, by setting the connecting portion as the first through hole, space is provided for circuit connections in the rear cavity of the speaker assembly, enabling the first cavity to function as an independent cavity.

[0024] In one implementation, the connecting portion includes a second through hole disposed in the extension portion; the second through hole extends through the extension portion along the length direction of the electronic device; the FPC passes through the second through hole; a second seal fills the second through hole to fix the FPC and seal the first cavity. By using this implementation, by setting the connecting portion as a second through hole, space is provided for circuit connections in the rear cavity of the speaker assembly, allowing the first cavity to function as an independent cavity.

[0025] In one implementation, the electronic device further includes a second display screen; the second display screen is located on the side of the middle plate opposite to the housing assembly; the connecting portion includes a third through hole disposed in the middle plate; an FPC passes through the third through hole to be located between the second display screen and the middle plate, wherein the second display screen includes an inner screen corresponding to a foldable electronic device. Using this implementation, by setting the connecting portion as a third through hole, space is provided for circuit connections to the rear cavity of the speaker assembly, allowing the first cavity to function as an independent cavity.

[0026] In one implementation, the surface of the middle plate facing away from the outer casing assembly and the second display screen form a second cavity; the first cavity, the second cavity, and the third through hole are connected to form a communicating cavity, so that the communicating cavity serves as the rear cavity of the speaker assembly. Using this implementation, by forming a communicating cavity between the first cavity and the second cavity, the battery area can be isolated based on the middle plate, thus avoiding vibration of the battery area.

[0027] In one implementation, the electronic device further includes a fourth through-hole; the fourth through-hole penetrates the middle plate; wherein the FPC passes through the third through-hole, is located between the second display screen and the middle plate, and exits through the fourth through-hole. This implementation illustrates a specific method by which the FPC forms a path.

[0028] In one implementation, the electronic device further includes a third seal; the third seal is used to fill the fourth through hole to fix the FPC and seal the second cavity; a fourth seal, disposed on the surface of the middle plate away from the housing assembly and between it and the second display screen, is used to seal the second cavity. This implementation improves the sealing performance of the communicating cavity.

[0029] In one implementation, the electronic device further includes a hinge assembly; the first body and the second body are rotatably connected via the hinge assembly; the connecting portion includes a fifth through hole disposed in the main body; the FPC passes through the hinge assembly and the fifth through hole; a second seal fills the fifth through hole to fix the FPC and seal the first cavity. Using this implementation, the embodiments of this application provide a circuit connection to the rear cavity of the speaker assembly by providing a through-shaft FPC, allowing the first cavity to function as an independent cavity.

[0030] In one implementation, the second seal includes at least one of an adhesive component and a movable component; the adhesive component includes at least one of dispensing adhesive, backing adhesive, and sealing foam; the movable component matches the shape of the connecting portion and includes at least one of rubber and silicone. Using this implementation, the second seal can have various types to adapt to different shapes.

[0031] In one implementation, the electronic device further includes a damping mesh; the damping mesh is disposed in the first cavity to adjust the polarization of the speaker assembly and to balance the air pressure in the corresponding front and rear cavities of the speaker assembly. Using this implementation, the damping mesh can balance the air pressure in the front and rear cavities of the speaker assembly, thereby improving the sound quality of the speaker assembly.

[0032] In one implementation, the electronic device further includes a balance valve; the balance valve is disposed in the first cavity to balance the air pressure in the front and rear cavities corresponding to the speaker assembly. Using this implementation, the balance valve can balance the air pressure in the front and rear cavities of the speaker assembly, thereby improving the sound quality of the speaker assembly. Attached Figure Description

[0033] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of a speaker in an electronic device;

[0035] Figure 2 yes Figure 1 Schematic diagram of section AA;

[0036] Figure 3This is a schematic diagram of the open rear cavity of an electronic device;

[0037] Figure 4 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application;

[0038] Figure 5 This is a schematic diagram of the structure of the inward-folding foldable electronic device provided in the embodiments of this application;

[0039] Figure 6 This is a schematic diagram illustrating the arrangement of the speaker assembly provided in an embodiment of this application;

[0040] Figure 7 This is a schematic diagram of the first structure of the electronic device provided in the embodiments of this application;

[0041] Figure 8 yes Figure 7 BB cross-sectional diagram;

[0042] Figure 9 yes Figure 5 A schematic diagram of the CC cross-section;

[0043] Figure 10 This is a schematic diagram of the battery and battery area provided in the embodiments of this application;

[0044] Figure 11 This is a schematic diagram of the first cavity provided in an embodiment of this application;

[0045] Figure 12 This is a front view of the first groove provided in an embodiment of this application;

[0046] Figure 13 This is a schematic diagram of the damping mesh and balance valve provided in the embodiments of this application;

[0047] Figure 14 This is a schematic diagram of a first arrangement of the first sealing element provided in an embodiment of this application;

[0048] Figure 15 This is a first front view of the portion corresponding to the retaining wall in the first sealing member provided in the embodiments of this application;

[0049] Figure 16 This is a schematic diagram of a second arrangement of the first sealing element provided in the embodiments of this application;

[0050] Figure 17 This is a second front view of the portion of the first seal corresponding to the retaining wall portion provided in the embodiments of this application;

[0051] Figure 18 This is a schematic diagram of a second structure of the electronic device provided in the embodiments of this application;

[0052] Figure 19 yes Figure 18 A schematic diagram of the DD cross-section;

[0053] Figure 20 yes Figure 18 A magnified view of a portion of region A2;

[0054] Figure 21 This is a schematic diagram of a third configuration of the first sealing element provided in the embodiments of this application;

[0055] Figure 22 This is a schematic diagram illustrating the arrangement of the sealing reinforcement provided in the embodiments of this application;

[0056] Figure 23 This is a schematic diagram of a second arrangement of the FPC in the battery area provided in an embodiment of this application;

[0057] Figure 24 This is a schematic diagram of the third structure of the electronic device provided in the embodiments of this application;

[0058] Figure 25 yes Figure 24 A schematic diagram of the EE cross-section;

[0059] Figure 26 This is a third front view of the portion corresponding to the retaining wall in the first sealing member provided in the embodiments of this application;

[0060] Figure 27 This is a schematic diagram of the fourth structure of the electronic device provided in the embodiments of this application;

[0061] Figure 28 yes Figure 27 A schematic diagram of the FF cross-section;

[0062] Figure 29 This is a front view of the second groove provided in an embodiment of this application;

[0063] Figure 30 This is a front view of the first through hole provided in an embodiment of this application;

[0064] Figure 31 This is a front view of the second through hole provided in an embodiment of this application;

[0065] Figure 32 This is a schematic diagram of the fifth structure of the electronic device provided in the embodiments of this application;

[0066] Figure 33 yes Figure 32 A schematic diagram of the GG cross-section;

[0067] Figure 34 yes Figure 32 A magnified view of a portion of region A3;

[0068] Figure 35 This is a schematic diagram of the sixth structure of the electronic device provided in the embodiments of this application;

[0069] Figure 36 yes Figure 35 A schematic diagram of the HH cross-section;

[0070] Figure 37 This is a schematic diagram illustrating the arrangement of the fourth sealing element provided in the embodiments of this application;

[0071] Figure 38 This is a schematic diagram of the seventh structure of the electronic device provided in the embodiments of this application;

[0072] Figure 39 yes Figure 38 A schematic diagram of section II;

[0073] Figure 40 yes Figure 38 A partial schematic diagram of area A5 in the diagram;

[0074] Figure 41 This is a schematic diagram of the structure of the second sealing element provided in the embodiments of this application;

[0075] Figure 42 This is an eighth structural schematic diagram of the electronic device provided in this application;

[0076] Figure 43 yes Figure 42 A schematic diagram of the JJ cross-section;

[0077] Figure 44 This is a schematic diagram of the first through hole provided in an embodiment of this application;

[0078] Figure 45 This is a schematic diagram of a third arrangement of the FPC in the battery area provided in this application embodiment;

[0079] Figure 46 This is a schematic diagram of the ninth structure of the electronic device provided in the embodiments of this application.

[0080] Figure Labels

[0081] 1-Electronic device, 2-Speaker, 3-Speaker housing, 4-Speaker core, 5-Front cavity, 6-Rear cavity, 7-Sound vent, 8-Battery cover, 9-Display screen, 10-Electronic device, 11-First body, 12-Second body, 13-Hinge assembly, 14-Middle frame, 141-Main body, 142-Middle plate, 143-Barrier, 1431-First surface, 1432-Extension, 1432a-First slope, 15-Shell assembly, 151-Battery cover, 153-Extension, 152-First display screen, 16-Second display screen, 17-Speaker assembly, 18-PCB, 19- Battery area, 20-Battery, 21-First cavity, 22-FPC, 23-BTB connector, 24-Second seal, 241-Sealing surface, 25-First groove, 26-Damping mesh, 27-Balance valve, 28-First seal, 281-Sealing reinforcement, 282-First opening, 29-Protrusion, 30-Step, 301-First slope, 31-Second groove, 32-First through hole, 321-Second hole surface, 33-Second through hole, 34-Third through hole, 35-Second cavity, 36-Fourth through hole, 37-Fourth seal, 38-Fifth through hole, 381-First hole surface. Detailed Implementation

[0082] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the protection scope of this application.

[0083] In the description of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. The "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "multiple" means two or more. The terms "first," "second," etc., do not limit the quantity or order of execution, and "first," "second," etc., do not necessarily imply differences.

[0084] It should be noted that, in this application, the terms "exemplary" or "for example" are used to indicate that something is being described as an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0085] The application scenarios of the embodiments of this application will be described below first.

[0086] Electronic devices typically include loudspeakers, which are devices that can convert electrical signals into sound waves and are an important component of the audio system of electronic devices.

[0087] A loudspeaker is an electroacoustic transducer that converts electrical signals into sound wave signals. It typically consists of an upper speaker and a lower speaker. The upper speaker is usually located at the top of the electronic device and includes both earpiece and speakerphone modes, suitable for music playback and phone calls. The lower speaker is usually located at the bottom of the electronic device and is used for music playback.

[0088] Figure 1 This is a schematic diagram of a speaker in an electronic device.

[0089] Figure 2 yes Figure 1 A schematic diagram of section AA.

[0090] like Figure 1 and Figure 2 As shown, an electronic device 1 includes a speaker 2, which typically comprises a speaker housing 3 and a speaker core 4. The speaker core 4 is generally composed of a diaphragm, a coil, a permanent magnet, and a frame. Taking this speaker 2 as an example, the diaphragm is the component in the speaker 2 used to emit sound waves, the coil is connected to the diaphragm and is the component in the speaker 2 used to generate electrical signals, the permanent magnet is the component in the speaker 2 used to generate a stable magnetic field, and the frame is used to support and fix the diaphragm, coil, and permanent magnet in the speaker 2. Based on the above component structure, the speaker 2 can operate based on the principle of electromagnetic induction. Specifically, when current passes through the coil, the coil drives the diaphragm to vibrate based on the magnetic field generated by the permanent magnet. This vibration forms pressure waves, i.e., sound waves, in the air.

[0091] It should be noted that when speaker 2 is the lower speaker, its working principle is the same as that of the upper speaker, and this application will not elaborate on this.

[0092] Regardless of whether speaker 2 is an upper speaker or a lower speaker, the speaker 2 device itself can only generate vibration. Therefore, if effective transmission of sound wave signals is required, speaker 2 needs to be matched with a suitable cavity to ensure the sound quality of speaker 2.

[0093] The cavity of the speaker 2 typically includes a front cavity 5 and a rear cavity 6. The front cavity 5 is usually located on the front side of the diaphragm, and its size and shape affect the high-frequency performance of the speaker 2. An opening area exists between the display screen and the mid-frame of the electronic device 1. This opening area can form a sound outlet slit 7, allowing the diaphragm to propagate the sound wave signal generated by the speaker 2 to the external environment based on the front cavity 5 and the sound outlet slit 7. It should be noted that the sound outlet slit 7 can also be formed based on an opening at the top of the mid-frame; this application does not limit the specific arrangement of the sound outlet slit 7.

[0094] The rear cavity 6 is typically located on the back side of the diaphragm. The low-frequency performance of the speaker 2 can be adjusted based on the size and shape of the rear cavity 6.

[0095] In designing the rear cavity of speaker 2, one approach is to create an open rear cavity for speaker 2.

[0096] Figure 3 This is a schematic diagram of the open rear cavity of an electronic device.

[0097] like Figure 3 As shown, taking one side of the electronic device 1 as an example, the entire internal space of the electronic device 1 can be used as the rear cavity 6 of the speaker 2. The rear cavity 6 can be... Figure 3 The shaded area in the image.

[0098] In the open rear cavity 6, air can flow freely, which reduces the obstruction of sound and makes the sound more natural and open.

[0099] The open rear cavity 6 is mainly formed by a middle frame, which is the main supporting frame of the electronic device 1 and determines its overall structure. The middle frame typically includes a battery retainer wall, which is used to fix the battery and prevent it from moving within the electronic device 1. In the open rear cavity 6, the edge of the middle frame is usually higher than the battery retainer wall, allowing air to flow freely within the overall internal space of the electronic device 1.

[0100] It should be noted that the speakers 2 can have the same configuration on both sides of the electronic device 1. Therefore, the entire internal space of the other side of the electronic device 1 can also serve as the rear cavity 6 of the speaker 2. The internal structure of the other side of the electronic device 1 is not shown in the attached diagram. The internal structures of the two sides can be referred to each other.

[0101] However, the open rear cavity 6 presents some problems. On the one hand, the open rear cavity 6 is affected by the sound waves from the speaker 2, causing resonance in the battery cover 8 or the display screen 9. On the other hand, in gaming scenarios, the user's fingers may press the battery cover 8 or the display screen 9, causing deformation and reducing the volume of the open rear cavity 6. This increases the air pressure, which in turn acts on the diaphragm, causing irregular movement of the diaphragm and generating noise. Another approach to designing the rear cavity 6 of the speaker 2 is to create a sealed rear cavity (not shown in the attached diagram).

[0102] Within the sealed rear cavity 6, airflow is restricted, which helps prevent external interference with the speaker 2 and provides better sound insulation, thereby improving the sound quality of the speaker 2. The electronic device 1 needs to reserve a large cavity space within the sealed rear cavity to ensure the sound quality of the speaker 2. This, in turn, affects the configuration of other electronic components.

[0103] Meanwhile, the mid-frame, as the main supporting frame of electronic device 1, needs to be set to a greater height in order to accommodate the sealed rear cavity and other electronic components within a limited space. This makes it impossible to meet the requirement of making electronic device 1 thinner and lighter. Unlike an open rear cavity, in the case of a sealed rear cavity, the sealed rear cavity and the battery barrier are independent areas, and the height of the battery barrier has no effect on the sealed rear cavity.

[0104] In other words, for the speaker 2 in electronic device 1, there is currently no suitable way to set up a cavity using the battery barrier and the edge of the mid-frame. Nor is there a way to provide a speaker rear cavity for electronic devices that meets the requirements of thinness and lightness without vibrating the battery area and other non-cavity areas.

[0105] To address the aforementioned problems, this application provides an electronic device.

[0106] Figure 4 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application.

[0107] like Figure 4 As shown, this application embodiment provides an electronic device 10, in which a speaker has a suitable cavity configuration.

[0108] The electronic device 10 provided in this application embodiment can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), in-vehicle computer, television, smart wearable device (such as smartwatch, smart bracelet, smart head-mounted display, smart glasses), smart home device, etc., including a speaker. This application embodiment does not limit the specific form of the electronic device 10.

[0109] The aforementioned electronic device 10 can be either a foldable or a non-foldable electronic device. When the electronic device 10 is foldable, it can change its form by folding and unfolding to meet the user's needs in different scenarios. For example, a foldable mobile phone can be a foldable electronic device. When the electronic device 10 is non-foldable, it can be, for example, a candybar mobile phone.

[0110] The following embodiments of this application use foldable electronic devices as examples for illustration. In fact, the embodiments of this application do not limit the specific type of electronic device 10, and different types of electronic devices 10 can be referred to each other.

[0111] In one implementation, the electronic device 10 can be as follows: Figure 4 The inward-folding foldable electronic device shown in Figure A, such as Figure 4 The outward-folding foldable electronic device shown in B, such as Figure 4 The foldable electronic device shown in C is a vertically folding type, such as... Figure 4 The inward-folding tri-fold foldable electronic device shown in D, and such as Figure 4 The Z-shaped, three-fold foldable electronic device shown in Figure E.

[0112] For example Figure 4 The inward-folding foldable electronic device shown in Figure A is illustrated by way of example.

[0113] The electronic device 10 includes a first body 11 and a second body 12, which can be rotatably connected by components such as a hinge assembly, a pivot assembly 13, or a flexible plate. This embodiment is only illustrated by the example of the first body 11 and the second body 12 being connected by a pivot assembly 13.

[0114] Based on the rotational property of the pivot assembly 13, the first body 11 and the second body 12 can rotate relative to each other, allowing the electronic device 10 to switch between an unfolded state and a folded state.

[0115] Specifically, at least one of the first body 11 and the second body 12 can rotate relative to the pivot assembly 13. When the first body 11 and the second body 12 rotate relative to each other to overlap, the electronic device 10 is in a folded state. When the first body 11 and the second body 12 rotate relative to each other to an angle of approximately 180 degrees, the electronic device 10 is in an unfolded state.

[0116] For example Figure 4 The internally foldable tri-fold electronic device shown in D is illustrated by way of example.

[0117] The electronic device 10 may include two spaced-apart first bodies 11, with a second body 12 disposed between the two first bodies 11. The first bodies 11 and the second body 12 are connected by a hinge assembly 13. In this way, the electronic device 10 can be folded into three layers.

[0118] The embodiments of this application do not limit the specific folding form of the electronic device 10.

[0119] The following embodiments all use electronic device 10 as an example of an inward-folding foldable device for further explanation.

[0120] Figure 5 This is a schematic diagram of the structure of the inward-folding foldable electronic device provided in the embodiments of this application.

[0121] like Figure 5 As shown, to facilitate the explanation of the positions of the various structures of the electronic device 10, this application establishes a coordinate system based on the electronic device 10. In this embodiment, the width direction of the electronic device 10 is taken as the x-axis direction, the length direction of the electronic device 10 is taken as the y-axis direction, and the thickness direction of the electronic device 10 is taken as the z-axis direction.

[0122] The electronic device 10 includes a mid-frame 14 and a housing assembly 15.

[0123] The middle frame 14 is the supporting structure of the electronic device 10. The electronic device 10 can adopt a single middle frame design, a double middle frame design, or a multi-middle frame design to adapt to different folding mechanisms of the electronic device 10.

[0124] In this embodiment, there can be two middle frames 14. When the electronic device 10 is in the unfolded state, the two middle frames 14 are respectively located on both sides of the pivot assembly 13 on the xy plane formed by its x-axis and y-axis.

[0125] The housing assembly 15 is a component constituting the external structure of the electronic device 10, and the housing assembly 15 may include at least one of a battery cover 151 and a first display screen 152. The first display screen 152 may be an external display screen.

[0126] The housing assembly 15 can be two battery covers 151 (not shown in the attached drawings). When the electronic device 10 is in the unfolded state, the two battery covers 151 are respectively located on both sides of the hinge assembly 13 in the xy plane. Alternatively, the housing assembly 15 can be one battery cover 151 and one first display screen 152. When the electronic device 10 is in the unfolded state, the battery cover 151 and the first display screen 152 are respectively located on both sides of the hinge assembly 13 in the xy plane.

[0127] In other words, the electronic device 10 can be an inward-folding foldable electronic device with an external screen, or it can be an inward-folding foldable electronic device without an external screen.

[0128] The outer casing assembly 15 can be fastened to the middle frame 14. In this way, the middle frame 14, which is located on both sides of the pivot assembly 13, and the outer casing assembly 15, which is located on both sides of the pivot assembly 13, can be fastened to form the first body 11 and the second body 12.

[0129] The following embodiments of this application are all illustrated by way of an inwardly foldable electronic device with an outer screen.

[0130] In this embodiment, on one side of the electronic device 10 along the z-axis, the first body 11 includes a battery cover 151, and the second body 12 includes a first display screen 152. On the other side of the electronic device 10 along the z-axis, a second display screen 16 can be mounted on the first body 11 and the second body 12. The second display screen 16 can be a flexible screen. Thus, the first display screen 152 can serve as the outer screen of the electronic device 10, and the second display screen 16 can serve as the inner screen of the electronic device 10.

[0131] The second display screen 16 has a bending area, allowing it to bend within this area as the hinge assembly 13 rotates. When the electronic device 10 is in a folded state based on the rotation of the hinge assembly 13, the hinge assembly 13 can compress the second display screen 16 into a teardrop shape. When the electronic device 10 is in an unfolded state based on the rotation of the hinge assembly 13, the second display screen 16 lies flat on the hinge assembly 13 in an unfolded state.

[0132] Based on the structure of the aforementioned inward-folding foldable electronic device, the following speaker assembly configuration can be adopted.

[0133] Figure 6 This is a schematic diagram of the speaker assembly configuration provided in the embodiments of this application.

[0134] like Figure 6 As shown, in one implementation, the electronic device 10 includes speaker assemblies 17, and the number of speaker assemblies 17 can be three. The first speaker assembly 17 can be located at the bottom of the first body 11, and this speaker assembly can be a lower speaker. The second speaker assembly 17 can be located at the top of the second body 12, and this speaker assembly can be an upper speaker. The third speaker assembly 17 can be located at the bottom of the second body 12, and this speaker assembly can be a lower speaker.

[0135] It should be noted that the arrangement of the speaker assembly 17 provided in this application embodiment is only for illustrative purposes, and this application embodiment does not limit the number and arrangement position of the speaker assembly 17 in the electronic device 10.

[0136] This application provides an exemplary description of the cavity structure corresponding to the three speaker components 17 described above.

[0137] It should be noted that in the embodiments of this application, different speaker assemblies 17 may adopt the same cavity structure or different cavity structures. For example, all three speaker assemblies 17 may adopt the cavity structure provided in the following embodiments of this application, or one speaker assembly 17 may adopt the cavity structure provided in the following embodiments of this application, and the remaining speaker assemblies 17 may adopt an open rear cavity or a closed rear cavity. The embodiments of this application do not limit the arrangement and combination of cavity structures in the electronic device 10.

[0138] Figure 7 This is a schematic diagram of the first structure of the electronic device provided in the embodiments of this application.

[0139] Figure 8 yes Figure 7 A schematic diagram of the BB cross section.

[0140] like Figure 7 and Figure 8 As shown, the cavity structure at the bottom of the second fuselage 12 is illustrated by way of example.

[0141] The middle frame 14 may include a main body 141, a middle plate 142, and a retaining wall 143.

[0142] The main body 141 is typically made of metal, plastic, alloy, or other high-strength materials and serves as an edge support structure for the electronic device 10. The main body 141 may include two sides, a top edge, and a bottom edge of the electronic device.

[0143] Specifically, the main body 141 can form the basic shape of the body of the electronic device 10, such as at least one of a rectangle or a rounded rectangle.

[0144] Figure 9 yes Figure 5 A schematic diagram of the CC cross-section.

[0145] like Figures 5 to 9 As shown, the main body 141 is disposed between the middle plate 142 and the outer shell assembly 15.

[0146] One end of the main body 141 is connected to the middle plate 142, and the other end abuts against the outer shell assembly 15.

[0147] Abutting refers to a physical contact where the surfaces of two objects support or resist each other to form a state of force equilibrium. The main body 141 abuts against the outer casing assembly 15, which can reduce or prevent sound propagation at the point of contact.

[0148] In this embodiment, the contact can include direct contact and indirect contact. Direct contact can refer to the situation where the surface of the main body 141 facing away from the middle plate 142 is in close contact with the surface of the outer shell assembly 15 facing the middle plate 142. Where the process conditions can achieve the required close contact, this embodiment preferably uses direct contact.

[0149] Indirect contact can refer to a situation where there is another medium between the surface of the main body 141 facing away from the middle plate 142 and the surface of the outer casing assembly 15 facing the middle plate 142. This medium could be a seal. In this way, the seal can fill the gap between the main body 141 and the outer casing assembly 15, creating a force balance between the main body 141, the seal, and the outer casing assembly 15, thereby achieving indirect contact between the main body 141 and the outer casing assembly 15. This embodiment can employ indirect contact when the required tight fit cannot be achieved under certain process conditions.

[0150] This embodiment does not limit the specific contact form between the main body 141 and the outer shell assembly 15.

[0151] Thus, along the z-axis direction, the main body 141 can have a first height H1. It should be noted that the specific value of the first height H1 is not limited in the embodiments of this application.

[0152] The middle plate 142 can be fitted into the main body 141. Along the z-axis, the middle plate 142 is arranged side by side with the housing assembly 15. The middle plate 142 can be used to fix the printed circuit board (PCB) 18 (the arrangement of the PCB 18 will be described in detail later), the speaker assembly 17, and other electronic components. The specific types of electronic components disposed on the middle plate 142 are not limited in this embodiment.

[0153] When the electronic device 10 is in the unfolded state, the battery cover 151 and the first display screen 152 are respectively located on both sides of the pivot assembly 13 on its xy plane. When the electronic device 10 is in the unfolded state, the middle plate 142 is located on the xy plane of the electronic device 10. Therefore, on the first body 11, the middle plate 142 and the battery cover 151 are arranged side by side along the z-axis direction, and on the second body 12, the middle plate 142 and the first display screen 152 are arranged side by side along the z-axis direction.

[0154] The retaining wall 143 is a structure in the middle frame 14 used to isolate the battery, preventing it from being subjected to impacts and pressure. The retaining wall 143 is disposed between the middle plate 142 and the housing assembly 15.

[0155] One end of the retaining wall 143 is connected to the middle plate 142, and the other end abuts against the outer shell assembly 15.

[0156] The main body 141, the middle plate 142 and the retaining wall 143 can be integrally formed, or the main body 141 and the retaining wall 143 can be connected to the middle plate 142 by welding. The specific connection method of the main body 141, the middle plate 142 and the retaining wall 143 is not limited in the embodiments of this application.

[0157] In one implementation, the height of the main body 141 is the same as the height of the retaining wall 143 in the direction away from the middle plate 142.

[0158] Thus, along the z-axis, the retaining wall portion 143 has a first height H1, which is the same as the height of the main body portion 141.

[0159] It should be noted that the accompanying drawings of this embodiment only show the case where the surfaces of the main body 141 and the retaining wall 143 abutting against the outer shell assembly 15 are both flat. In reality, the surface of the main body 141 abutting against the outer shell assembly 15 can be flat or curved, and the surface of the retaining wall 143 abutting against the outer shell assembly 15 can also be flat or curved. Correspondingly, the positions where the outer shell assembly 15 abuts against the main body 141 and the retaining wall 143 correspond to the shapes of the main body 141 and the retaining wall 143, so that the main body 141 and the retaining wall 143 are in close contact with the outer shell assembly 15.

[0160] For example, the surface of the main body 141 that abuts against the surface of the housing assembly 15 and the surface of the retaining wall 143 that abuts against the surface of the housing assembly 15 can both be wavy curved surfaces. Correspondingly, the surfaces of the housing assembly 15 that abut against the main body 141 and the retaining wall 143 are both wavy curved surfaces, so that the main body 141, the retaining wall 143 and the housing assembly 15 are in close contact.

[0161] In another example, the surfaces of the main body 141 abutting against the housing assembly 15 and the retaining wall 143 abutting against the housing assembly 15 can both be recessed surfaces. Correspondingly, the surfaces of the housing assembly 15 abutting against the main body 141 and the retaining wall 143 are both raised surfaces. The recessed surfaces can cooperate with the raised surfaces so that the main body 141, the retaining wall 143 and the housing assembly 15 are in close contact.

[0162] This application embodiment does not limit the specific types of the contact surfaces of the main body 141, the retaining wall 143, and the housing assembly 15. Based on the above structure, the middle frame 14 can provide a basic structural framework for the electronic device 10 through the main body 141, and provide specific space for the battery through the retaining wall 143. The middle frame 14 ensures that each component in the electronic device 10 is in a preset position.

[0163] Figure 10 This is a schematic diagram of the battery and battery area provided in the embodiments of this application.

[0164] like Figures 8 to 10 As shown, the second fuselage 12 is illustrated by way of example.

[0165] Two baffle sections 143 can be provided on the second body 12. The two baffle sections 143 can be arranged side by side on the middle plate 142 along the y-axis. In this way, the two baffle sections 143 and the middle plate 142 can form a battery area 19. The battery area 19 can be Figure 10 The shaded area in the image. Battery area 19 is used to accommodate battery 20.

[0166] Based on the first height H1 of the retaining wall portion 143, the area where the speaker assembly 17 is located is isolated from the battery area 19.

[0167] The area where speaker assembly 17 is located will be described in detail below.

[0168] Figure 11 This is a schematic diagram of the first cavity provided in the embodiments of this application.

[0169] like Figures 8 to 11 As shown, the area where the speaker assembly 17 is located is a first cavity 21 enclosed by the main body 141, the middle plate 142, the baffle 143, and the outer casing assembly 15. The first cavity 21 may be... Figure 11 The shaded area in the image.

[0170] In this embodiment, the baffle portion 143 can isolate the first cavity 21 from the battery region 19. This isolation can be a physical spatial separation, preventing direct communication between the first cavity 21 and the battery region 19. This isolation can also provide acoustic isolation between the first cavity 21 and the battery region 19, reducing or eliminating sound propagation from the first cavity 21 to the battery region 19.

[0171] It should be noted that the isolation in this embodiment includes, but is not limited to, complete isolation. In fact, signal transmission can also be allowed on the barrier portion 143, for example, by mounting a PCB 18 on the barrier portion. The isolation in this embodiment is intended to provide acoustic isolation.

[0172] In this embodiment, three first cavities 21 can be provided for the three speaker assemblies 17, and the first cavity 21 is used as the rear cavity of the speaker assembly 17. It should be noted that since the speaker assembly 17 occupies part of the space of the first cavity 21, and other electronic components in the first cavity 21 also occupy part of the space in the first cavity 21, the first cavity 21 is not actually used entirely as the rear cavity of the speaker assembly 17, but only a part of its space is used as the rear cavity of the speaker assembly 17.

[0173] The configuration of the first cavity 21 in this embodiment is only for illustrative purposes.

[0174] Compared to the conventional approach of providing an open or closed rear cavity for the speaker assembly 17, the first cavity 21 provided in this embodiment is an independent cavity formed by the main body 141 and the baffle 143 of the same height. The first cavity 21 is only adjacent to the battery area 19, but does not cover the battery area 19. In this way, the first cavity 21 is isolated from the battery area 19, avoiding the entire space of the electronic device 10 from serving as the rear cavity of the speaker assembly 17, thereby avoiding vibration of the battery area 19, as well as vibration of the battery cover 151 and the first display screen 152 corresponding to other non-cavity areas. Furthermore, since the first cavity 21 can accommodate other electronic components and is not a closed cavity only for the speaker assembly 17, the overall space utilization is compact, which can meet the requirements of the electronic device 10 for a thinner and lighter design. The electronic device 10 also includes a PCB 18, a flexible printed circuit (FPC) 22, a connecting portion, a board-to-board (BTB) connector 23, and a second seal 24.

[0175] Based on the above structure, the electronic device 10 can provide a suitable circuit connection method for the speaker assembly 17 in the first cavity 21.

[0176] PCB 18 is disposed on the surface of the middle plate 142 facing the housing assembly 15.

[0177] PCB 18 is a key component that provides circuit connections for speaker assembly 17. PCB 18 can be used to set up various electronic components, such as processors, memory chips, sensors, etc. These electronic components can be connected by wires and solder joints on PCB 18 to form a complete circuit, so that electrical signals can be transmitted between the various electronic components.

[0178] Each first cavity 21 may contain a corresponding PCB 18. This application embodiment does not limit the number or location of the PCBs 18 within the first cavity 21.

[0179] A controller and a signal processor can be mounted on PCB 18. The controller can be, for example, the central processing unit (CPU) of electronic device 10; however, the specific type of controller is not limited in this embodiment. The signal processor can be, for example, a power amplifier (PA) used to amplify or modify audio signals. The signal processor can optimize the audio signal transmitted to speaker assembly 17, thereby improving the audio performance of electronic device 10.

[0180] The controller can be electrically connected to the signal processor. The controller can send audio signals, and the signal processor can receive audio signals, amplify and modify them, and then send the processed audio signals. The speaker assembly 17 can be electrically connected to the signal processor, receive the processed audio signals, and vibrate to produce sound according to the received audio signals.

[0181] It should be noted that the PCB 18 in this embodiment includes, but is not limited to, being disposed within the first cavity 21. For example, Figure 11 PCB 18 can also be provided in area A1. This application embodiment does not limit the specific location of PCB 18. Furthermore, the arrangement of the various electronic components in PCB 18 described above is only for illustrative purposes; in reality, PCB 18 can have more or fewer electronic components, and this application embodiment does not limit the arrangement of electronic components on PCB 18.

[0182] One end of the FPC 22 can be connected to the PCB 18, and the other end passes through the connecting portion. The FPC 22 is typically made of flexible polyester film or polyimide material, which can maintain the integrity of the circuit when bent or stretched. The FPC 22 can support complex circuit functions and high-speed data transmission.

[0183] In one implementation, a reinforcing portion (not shown in the figures) may be provided on the surface of the FPC 22 facing away from the housing assembly 15. The reinforcing portion may be a steel sheet or other rigid material. The specific material of the reinforcing portion is not limited in this embodiment. In this way, the reinforcing portion can prevent the FPC 22 from curling or folding outward, increase the physical strength of the FPC 22, and effectively improve the stability of the circuit.

[0184] In this embodiment, multiple FPCs 22 can be provided. Different FPCs 22 can be used to implement different functions. For example, FPC 22 can include at least one of display screen FPC, battery FPC, and through-axis FPC.

[0185] Each FPC 22 requires a corresponding connecting part. The following embodiments of this application illustrate the use of one FPC 22 and one corresponding connecting part in an electronic device. The number and type of FPC 22 and connecting parts are not limited in these embodiments.

[0186] The connecting portion extends through at least one of the middle plate 142, the main body 141, and the retaining wall 143, so that the connecting portion can form a space for circuit connection in the sealed first cavity 21.

[0187] In other words, within the first cavity 21, the speaker assembly 17 is electrically connected to the PCB 18, and the PCB 18 is electrically connected to one end of the FPC 22. The other end of the FPC 22 extends out of the sealed first cavity 21 via a connecting portion and connects to other electronic components. This creates a pathway between the components, ensuring the normal operation of the electronic components within the first cavity 21. The connection method between the FPC 22 and the PCB 18 will be explained in detail below.

[0188] In one implementation, FPC 22 and PCB 18 are connected via BTB connector 23. Specifically, BTB connector 23 is an electronic connector for connecting two circuit boards. BTB connector 23 can be fixedly connected to the surface of PCB 18 facing the housing assembly 15.

[0189] It should be noted that the BTB connector 23 can also be fixedly connected to the surface of the PCB 18 opposite to the housing assembly 15. This embodiment does not limit the connection method between the BTB connector 23 and the PCB 18.

[0190] For example, the BTB connector 23 includes a first sub-connector and a second sub-connector. The first sub-connector is soldered to the surface of the PCB 18 facing the housing assembly 15, and the second sub-connector is soldered to the surface of the FPC 22 facing the PCB 18. Furthermore, the first and second sub-connectors are engaged, thus connecting the FPC 22 and the PCB 18 via the BTB connector 23. The soldering connection method may include surface mount technology (SMT), and this embodiment does not limit the specific soldering connection method.

[0191] In one implementation, to prevent the BTB connector 23 from coming loose, a pressing bracket may be provided on the surface of the BTB connector 23 facing the housing assembly 15. The base of the pressing bracket may be fixed to the PCB 18 by screws or clips, so that the BTB connector 23 is positioned between the pressing bracket and the PCB 18.

[0192] It should be noted that in this embodiment, FPC 22 and PCB 18 can also be connected by various methods such as soldering, crimping, and conductive adhesive. This embodiment does not limit the connection method between FPC 22 and PCB 18.

[0193] The other end of FPC 22 passes through the connecting section and enters the battery area 19.

[0194] The portion of FPC 22 entering battery area 19 can be connected to battery 20. For example, the other end of FPC 22 can be connected to the leads of battery 20 by soldering, or to the plates of battery 20 via SMT, or to battery 20 via a plug-in connector, or crimped into the terminals of battery 20. This embodiment does not limit the connection method between FPC 22 and battery 20. In this way, battery 20 can power FPC 22, and in turn power the controller and signal processor on PCB 18, ensuring the normal operation of speaker assembly 17.

[0195] In practice, the other end of the FPC 22 can also be inserted into the battery region 19, and the portion of the FPC 22 located in the battery region 19 is not connected to the battery 20. For example, the FPC 22 in the first cavity 21 at the bottom of the second body 12 can be inserted into the battery region 19 and enter the first cavity 21 at the top of the second body 12. One end of the FPC 22 entering the first cavity 21 at the top of the second body 12 can be connected to the PCB 18 in that cavity. In this case, the PCB 18 can be connected to the battery 20 in other ways so that the battery 20 can supply power to it. In this way, the FPC 22 can obtain power through the PCB 18. That is to say, the FPC 22 can be connected to the battery 20 to obtain power, or it can be connected to other electronic components to indirectly obtain power. The specific method by which the FPC 22 obtains power is not limited in the embodiments of this application.

[0196] Since the connecting part is an open space, in order to ensure the sealing of the first cavity 21, after the FPC 22 passes through the connecting part, the connecting part needs to be filled by the second sealing member 24 to fix the FPC 22 and seal the first cavity 21.

[0197] In one implementation, the second seal 24 includes at least one of an adhesive component and a movable component. The adhesive component includes at least one of dispensing adhesive, backing adhesive, and sealing foam. The movable component can conform to the shape of the connecting portion and includes at least one of rubber and silicone.

[0198] The specific type of the second seal 24 is not limited in the embodiments of this application.

[0199] The following provides a further explanation of how the connecting parts are configured in this embodiment.

[0200] In this embodiment, the connecting portion can be a first groove provided in the retaining wall portion 143.

[0201] Figure 12 This is a front view of the first groove provided in an embodiment of this application.

[0202] like Figures 8 to 12As shown, the first groove 25 is located on the side of the retaining wall portion 143 facing the housing assembly 15, and the first groove 25 is recessed in a direction away from the housing assembly 15. The specific number of the first grooves 25 is not limited in this embodiment.

[0203] In this embodiment, at least one first groove 25 may be corresponding to the first body 11. The first groove 25 is located on the side of the baffle portion 143 facing the battery cover 151, and the first groove 25 is recessed in the direction away from the battery cover 151.

[0204] At least one first groove 25 is located on the second body 12. The first groove 25 is located on the side of the retaining wall portion 143 facing the first display screen 152, and the first groove 25 is recessed in the direction away from the first display screen 152.

[0205] The FPC 22 can be inserted into the first recess 25 to provide a circuit connection to the speaker assembly 17. It should be noted that the insertion direction of the FPC 22 is not limited in this embodiment.

[0206] The first cavity 21 at the bottom of the second fuselage 12 is described by way of example.

[0207] One end of the FPC 22 is connected to the BTB connector 23, and the other end of the FPC 22 passes through the first groove 25 into the battery area 19.

[0208] The second seal 24 fills the first groove 25 to fix the FPC 22 and seal the first cavity 21.

[0209] In this embodiment, the second seal 24 can be a sealing foam. The sealing foam can provide good sealing performance, and, based on the action of external force, the two structural components bonded by the sealing foam can be separated to facilitate the assembly of the FPC 22.

[0210] The second seal 24 can also be made of rubber, which can be based on the shape of the first groove 25. The rubber material also facilitates the assembly of the FPC 22. This embodiment does not limit the specific material of the second seal 24.

[0211] It should be noted that the second seal 24 can have various sealing methods. For example, the portion of the FPC 22 located in the first groove 25 can be disposed on the bottom surface of the first groove 25, so that the second seal 24 can be disposed on the surface of the FPC 22 facing the housing assembly 15 to fill the first groove 25. In another implementation, one surface of the second seal 24 is disposed on the bottom surface of the first groove 25, and the other surface is used to support the FPC 22, so that the FPC 22 is disposed between the second seal 24 and the housing assembly 15. In yet another implementation, one surface of the second seal 24 is disposed on the bottom surface of the first groove 25, and the other surface is connected to the housing assembly 15, with the FPC 22 inserted into the second seal 24. The embodiments of this application do not limit the relative positional relationship between the FPC 22 and the second seal 24.

[0212] In one implementation, when the FPC 22 passes through the first recess 25 into the battery region 19, the FPC 22 can be located on the surface of the battery 20 facing the housing assembly 15, so that the FPC 22 is positioned between the battery 20 and the housing assembly 15. In another implementation, the FPC 22 can also be located on the surface of the battery 20 facing away from the housing assembly 15, so that the FPC 22 is positioned between the battery 20 and the middle plate 142. This application does not limit the specific arrangement of the FPC 22 in the battery region 19.

[0213] This embodiment provides an exemplary description of a first configuration of the FPC 22 in the battery region 19. It should be noted that other configurations of the FPC 22 in the battery region are described in subsequent embodiments.

[0214] After entering the battery area 19, the FPC 22 can be positioned on the surface of the battery 20 facing the first display screen 152, so that the FPC 22 is located between the battery 20 and the first display screen 152. This arrangement of the FPC 22 allows for more efficient use of the vertical space inside the electronic device 10. Furthermore, with this arrangement, the battery 20 can be replaced more easily with less impact on the wiring of the FPC 22. Moreover, this arrangement also makes it easier to integrate the FPC 22 with other heat dissipation components (such as heat sinks or vents), helping the electronic device 10 maintain good heat dissipation performance.

[0215] Figure 13 This is a schematic diagram of the damping mesh and balance valve provided in the embodiments of this application.

[0216] like Figure 13 As shown, the first cavity 21 corresponding to the first fuselage 11 is described by way of example.

[0217] In one implementation, the electronic device 10 may further include a damping mesh 26 disposed in the first cavity 21.

[0218] For example, the damping mesh 26 is disposed on the surface of the retaining wall portion 143 to form the first cavity 21. In another implementation, the damping mesh 26 may also be disposed on the middle plate 142 corresponding to the first cavity 21. The specific placement of the damping mesh 26 in the first cavity 21 is not limited in this embodiment.

[0219] The damping mesh 26 is typically made of a flexible substrate, which is usually a polymer or synthetic fiber mesh. The damping mesh 26 can be used to adjust the polarization of the speaker assembly 17 and to balance the air pressure in the corresponding front and rear chambers of the speaker assembly 17.

[0220] Further as Figure 13 As shown, the electronic device 10 also includes a balance valve 27, which is disposed in the first cavity 21.

[0221] For example, the balance valve 27 is disposed on the middle plate 142 corresponding to the first cavity 21. This application embodiment does not limit the specific placement of the balance valve 27 in the first cavity 21.

[0222] The balance valve 27 can be a waterproof and breathable membrane or a dustproof mesh. The first cavity 21 can be connected to the external environment or the front cavity of the speaker assembly 17 through the balance valve 27 and the opening on the middle frame 14.

[0223] The balance valve 27 can be used to balance the air pressure in the front and rear chambers of the speaker assembly 17, so as to avoid the problem that the air pressure rises due to the poor sealing of the first chamber 21, which prevents the internal electronic components from being dissipated, thus causing a pressure difference between the front and rear chambers of the diaphragm and affecting the diaphragm vibration.

[0224] It should be noted that in this embodiment, the damping mesh 26 and the balance valve 27 can be selectively set, or neither can be set, depending on the actual situation. This application embodiment does not limit this.

[0225] Figure 14 This is a schematic diagram of a first configuration method of the first sealing element provided in the embodiments of this application.

[0226] Figure 15 This is a first front view of the portion of the first seal corresponding to the retaining wall portion provided in the embodiments of this application.

[0227] like Figure 14 and Figure 15As shown, in one implementation, the electronic device 10 may further include a first seal 28, which may be disposed between the main body 141 and the housing assembly 15, and between the main body 141 and the baffle 143, to seal the first cavity 21.

[0228] For example, a first seal 28 is disposed on the surface of the main body portion 141 facing the housing assembly 15, and a retaining portion 143 is disposed on the surface of the housing assembly 15.

[0229] In other words, the first seal 28 can seal the gap between the main body 141 and the retaining wall 143 and the outer casing assembly 15 to enhance the sealing performance of the first cavity 21.

[0230] Specifically, the second seal 24 fills the first groove 25 so that the side of the retaining wall portion 143 facing the housing assembly 15 forms a flattened first surface 1431. The portion of the first seal 28 corresponding to the retaining wall portion 143 is disposed on the first surface 1431 to seal the first cavity 21.

[0231] For example, the first seal 28 can be an annular adhesive backing.

[0232] It should be noted that the first sealing element 28 includes at least one of an adhesive component and a movable component. The adhesive component includes at least one of dispensing adhesive, backing adhesive, and sealing foam. The movable component may include at least one of rubber and silicone. This application does not limit the specific type of the first sealing element 28.

[0233] Figure 16 This is a schematic diagram of a second configuration of the first sealing element provided in the embodiments of this application.

[0234] Figure 17 This is a second front view of the portion of the first seal corresponding to the retaining wall provided in the embodiments of this application.

[0235] like Figure 16 and Figure 17 As shown, in another implementation, a portion of the second seal 24 fills the first groove 25, and another portion protrudes from the first groove 25, and the protruding portion of the second seal 24 has the same height as the first seal 28 along the z-axis.

[0236] On the surface of the retaining wall portion 143 facing the housing assembly 15, the first seal 28 may be disposed in an area other than the first groove 25, such that the protruding portion of the second seal 24 may engage with the first seal 28 to form a continuous surface for tight connection with the housing assembly 15.

[0237] It should be noted that, based on the above structure, this embodiment can form a first cavity 21 with sealing performance. In reality, there may be gaps at the connection points of the components within the first cavity 21. For example, there may be a gap at the connection point between the second seal 24 and the first seal 28, and there may also be a gap between the second seal 24 and the first groove 25. To further improve the sealing performance, dispensing grooves can be added at the locations corresponding to these gaps for dispensing adhesive. The location of the dispensing grooves in this embodiment is set according to actual conditions, and this application does not limit this.

[0238] The electronic device shown in this embodiment, by setting the main body 141 and the retaining wall 143 to the same height, can form an independent first cavity 21 on the side of the retaining wall 143 away from the battery, so that the first cavity 21 serves as the rear cavity of the speaker assembly 17. Since the first cavity 21 is isolated from the battery area 19 and can accommodate other electronic components, the electronic device 10 can avoid the problem of vibration of the battery area that may be caused by using the entire space as an open rear cavity, and also avoid the problem of vibration of the battery cover 151 and the first display screen 152 corresponding to other non-cavity areas. At the same time, it avoids the problem of affecting the thinness of the electronic device 10 that may be caused by using a large-volume sealed cavity as the rear cavity. Furthermore, by providing a first groove 25 in the retaining wall 143, a circuit connection can be established in the independent first cavity 21 to enable the speaker assembly 17 to operate normally.

[0239] Figure 18 This is a schematic diagram of a second structure of the electronic device provided in the embodiments of this application.

[0240] Figure 19 yes Figure 18 A schematic diagram of the DD cross section.

[0241] like Figure 18 and Figure 19 As shown, in this embodiment, different cavity structures can be provided for the three speaker assemblies 17. For example, the first cavity 21 at the bottom of the first housing 11 and the first cavity 21 at the bottom of the second housing 12 can be configured as the second cavity structure provided in this embodiment, and the first cavity 21 at the top of the second housing 12 can be configured as the first cavity structure provided in the aforementioned embodiment. The cavity structure configuration in this embodiment is only for illustrative purposes.

[0242] This embodiment uses the first cavity 21 at the bottom of the first fuselage 11 as an example to illustrate the second type of cavity structure.

[0243] Figure 20 yes Figure 18 A magnified view of a portion of region A2.

[0244] like Figures 18 to 20As shown, in this embodiment, the connecting part can be a first groove 25 provided in the retaining wall part 143. The arrangement of the first groove 25 is different from that in the previous embodiment. All structures not described in detail in this embodiment can be referred to in the previous embodiment, and this application will not elaborate on them.

[0245] In one implementation, a portion of the retaining wall portion 143 extends along the y-axis to form an extension portion 1432. The side of the extension portion 1432 facing the housing assembly 15 includes a first groove 25 and a protrusion 29, with the protrusion 29 disposed on both sides of the first groove 25.

[0246] The FPC 22 can be disposed in the first recess 25 to provide a circuit connection to the speaker assembly 17. The circuit connection method of the FPC 22 can be referred to the foregoing embodiments, and will not be repeated here.

[0247] The second seal 24 fills the first groove 25. The shape of the first seal 28 matches the second seal 24 so that the second seal 24 and the first seal 28 form a misaligned structure, thereby improving the sealing performance of the first cavity 21.

[0248] Figure 21 This is a schematic diagram of a third configuration of the second seal provided in the embodiments of this application.

[0249] like Figures 18 to 21 As shown, in one implementation, the portion of the first seal 28 corresponding to the extension 1432 is disposed on the surface of the protrusion 29 facing the housing assembly 15.

[0250] In this embodiment, the portion of the first seal 28 corresponding to the extension portion 1432 forms a misaligned structure with the second seal 24, such that the side of the second seal 24 facing the housing assembly 15 and the side of the first seal 28 facing the housing assembly 15 form a filled second surface, which is connected to the housing assembly 15 to seal the first cavity 21.

[0251] Specifically, the extension portion 1432 can extend toward the interior of the first cavity 21. The portion of the first seal 28 corresponding to the extension portion 1432 includes: an L-shaped structure symmetrically arranged based on the central region of the first groove 25, the L-shaped structure including a first side K1 and a second side K2.

[0252] Along the z-axis, the first side K1 forms a first projection area on the extension 1432. The first projection area is formed by extending a first width W1 along the y-axis from the side edge of the protrusion 29 that is away from the bottom edge of the main body 141.

[0253] Along the z-axis direction, the second side K2 forms a second projection area on the extension 1432. The second projection area is formed by extending a second width W2 along the x-axis direction from the edge of the protrusion 29 near the first groove 25.

[0254] The second seal 24 is shaped to match the first seal 28 to form a second surface. It should be noted that this embodiment is only an example of a misaligned structure. In practice, the second seal 24 and the first seal 28 can also be matched based on other forms of misaligned structures, and this embodiment does not limit this.

[0255] To further enhance sealing, the electronic device 10 may also be equipped with a sealing reinforcement.

[0256] Figure 22 This is a schematic diagram illustrating the arrangement of the sealing reinforcement provided in the embodiments of this application.

[0257] like Figures 18 to 22 As shown, the sealing reinforcement 281 can be disposed in the junction area H between the second seal 24 and the first seal 28 to form a staggered overlapping structure in the junction area H.

[0258] It should be noted that the embodiments of this application do not limit the number of sealing reinforcement members 281 or the specific method of staggered overlapping.

[0259] Specifically, the boundary region H can be recessed in the direction away from the housing assembly 15 to form a recessed region, and the sealing reinforcement 281 can be disposed in the recessed region.

[0260] For example, the recessed area can be a dispensing groove, and the sealing reinforcement 281 can be a sealant. In practice, the sealing reinforcement 281 can be at least one of foam, adhesive backing, and dispensing. This application does not limit the specific type of the sealing reinforcement 281.

[0261] Furthermore, in this embodiment, the arrangement of FPC 22 in the battery region 19 may differ from that in the aforementioned embodiments. It should be noted that the arrangement of FPC 22 in the battery region 19 in this embodiment is merely illustrative; the specific arrangement of FPC 22 may also be the same as in the aforementioned embodiments, and the various embodiments of this application can be referred to interchangeably.

[0262] Figure 23 This is a schematic diagram of a second configuration of the FPC in the battery area provided in this application embodiment.

[0263] like Figure 23As shown, in one implementation, along the y-axis direction, the surface of the extension 1432 facing away from the bottom edge of the main body 141 can be configured as a first slope 1432a. After the FPC 22 passes through the first groove 25, it can be fitted to the first slope 1432a to enter the battery region 19. Furthermore, the portion of the FPC 22 entering the battery region 19 is fitted to the middle plate 142. In this way, the battery 20 can be placed on the surface of the FPC 22 facing away from the middle plate 142, so that the FPC 22 is located between the battery 20 and the middle plate 142.

[0264] When FPC 22 is configured in this way, battery 20 can fix FPC 22 based on its own weight, ensuring that FPC 22 will not shift during user use of electronic device 10. Furthermore, battery 20 can act as a shielding layer, reducing electromagnetic interference from other electronic components to FPC 22. Additionally, this configuration also protects FPC 22 from the thermal effects of battery 20.

[0265] The configuration of the other components in this embodiment can be referred to the foregoing embodiments, and will not be repeated here.

[0266] The electronic device shown in this embodiment, by setting the main body 141 and the retaining wall 143 to the same height, can form an independent first cavity 21 on the side of the retaining wall 143 away from the battery, so that the first cavity 21 serves as the rear cavity of the speaker assembly 17. Since the first cavity 21 is isolated from the battery area 19 and can accommodate other electronic components, the electronic device 10 can avoid the problem of vibration of the battery area that may be caused by using the entire space as an open rear cavity, and also avoid the problem of vibration of the battery cover 151 and the first display screen 152 corresponding to other non-cavity areas. At the same time, it avoids the problem of affecting the thinness of the electronic device that may be caused by using a large-volume sealed cavity as the rear cavity. This embodiment optimizes the setting of the first groove 25 so that the second sealing member 24 on the first groove 25 can form a misaligned structure with the first sealing member 28. In this way, the sealing performance of the first cavity 21 is enhanced, and the sound quality of the speaker assembly 17 is improved.

[0267] Figure 24 This is a schematic diagram of the third structure of the electronic device provided in the embodiments of this application.

[0268] Figure 25 yes Figure 24 A schematic diagram of the EE cross section.

[0269] Figure 26 This is a third front view of the portion corresponding to the retaining wall in the first seal provided in the embodiments of this application.

[0270] like Figures 24 to 26As shown, this embodiment uses the first cavity 21 at the bottom of the second fuselage 12 as an example to illustrate the third cavity structure.

[0271] In this embodiment, the connecting portion can be a first opening 282 provided in the first sealing member 28.

[0272] Specifically, the connecting portion can penetrate the portion of the first seal 28 corresponding to the retaining wall portion 143 to form a first opening 282.

[0273] In this embodiment, the first sealing element 28 can be sealing foam. Since the sealing foam itself has a certain thickness, even if the first groove 25 is not provided on the retaining wall portion 143, a space for circuit connection can still be formed based on the first opening 282. In fact, the first sealing element 28 can also be made of other materials, and this application does not limit this.

[0274] The FPC 22 can be inserted through the first opening 282 to provide a circuit connection to the speaker assembly 17. The circuit connection method of the FPC 22 can be referred to the foregoing embodiments, and will not be repeated here.

[0275] The configuration of the other components in this embodiment can be referred to the foregoing embodiments, and will not be repeated here.

[0276] The electronic device shown in this embodiment, by setting the main body 141 and the retaining wall 143 to the same height, can form an independent first cavity 21 on the side of the retaining wall 143 away from the battery, so that the first cavity 21 serves as the rear cavity of the speaker assembly 17. Since the first cavity 21 is isolated from the battery area 19 and can accommodate other electronic components, the electronic device 10 can avoid the problem of vibration of the battery area that may be caused by using the entire space as an open rear cavity, and also avoid the problem of vibration of the battery cover 151 and the first display screen 152 corresponding to other non-cavity areas. At the same time, it avoids the problem of affecting the thinness of the electronic device that may be caused by using a large-volume sealed cavity as the rear cavity. Furthermore, by providing a first opening 282 in the first sealing member 28, a circuit connection can be established in the independent first cavity 21 to enable the speaker assembly 17 to operate normally.

[0277] Figure 27 This is a schematic diagram of the fourth structure of the electronic device provided in the embodiments of this application.

[0278] Figure 28 yes Figure 27 A schematic diagram of the FF cross section.

[0279] like Figure 27 and Figure 28 As shown, this embodiment uses the first cavity 21 at the bottom of the second fuselage 12 as an example to illustrate the fourth cavity structure.

[0280] In this embodiment, the height of the retaining wall portion 143 is different from that in the previous embodiment.

[0281] In one implementation, the housing assembly 15 includes an extension 153 that protrudes from the surface of the housing assembly 15 toward the middle plate 142, wherein the extension 153 abuts against the retaining wall portion 143.

[0282] Specifically, the extension 153 may protrude from the surface of the battery cover 151 or from the surface of the first display screen 152; this application embodiment does not limit this.

[0283] The main body 141 has a first height H1 in the direction away from the middle plate 142. The retaining wall 143 has a second height H2 in the direction away from the middle plate 142. The extension 153 has a third height H3 in the direction close to the middle plate 142, wherein the sum of the second height H2 and the third height H3 is equal to the first height H1.

[0284] In this way, the height at which the extension 153 and the retaining wall 143 are combined is the same as the height of the main body 141, achieving the same effect as the isolated battery area 19 in the aforementioned embodiment, thereby forming an independent first cavity 21.

[0285] Furthermore, in order to provide a suitable circuit connection for the first cavity 21, the connecting portion can be formed by a first groove 25 through the retaining wall portion 143. The arrangement of the first groove 25 can be referred to the foregoing embodiments, and will not be repeated here.

[0286] In another implementation, the connecting portion can be a second groove formed in the extension 153.

[0287] Figure 29 This is a front view of the second groove provided in an embodiment of this application.

[0288] like Figures 27 to 29 As shown, the second groove 31 is located on the side of the extension 153 away from the housing assembly 15, and the second groove 31 is recessed in the direction close to the housing assembly 15.

[0289] Thus, the FPC 22 can be inserted into the second recess 31 to provide a circuit connection to the speaker assembly 17. The circuit connection method of the FPC 22 can be referred to the foregoing embodiments, and will not be repeated here.

[0290] The second seal 24 can be filled into the second groove 31 to fix the FPC 22 and seal the first cavity 21. The specific manner in which the second seal 24 fills the second groove 31 can be referred to the foregoing embodiments, and will not be repeated here.

[0291] In this embodiment, the portion of the first seal 28 corresponding to the retaining wall portion 143 can be adaptively adjusted. For example, the portion of the first seal 28 corresponding to the retaining wall portion 143 can be disposed on the abutting surface of the extension portion 153 and the retaining wall portion 143.

[0292] In another implementation, the connecting part can be a first through hole passing through the retaining wall part 143.

[0293] Figure 30 This is a front view of the first through hole provided in an embodiment of this application.

[0294] like Figures 27 to 30 As shown, along the y-axis, the first through hole 32 penetrates the retaining wall portion 143.

[0295] The FPC 22 passes through the first through-hole 32 to provide a circuit connection to the speaker assembly 17. The circuit connection method of the FPC 22 can be referred to the foregoing embodiments, and will not be repeated here.

[0296] The second seal 24 fills the first through hole 32 to fix the FPC 22 and seal the first cavity 21. When the second seal 24 fills the first through hole 32, the relative positional relationship between the FPC 22 and the second seal 24 is not limited in this embodiment.

[0297] In this embodiment, the arrangement of the first sealing element 28 can be referred to the aforementioned embodiment.

[0298] In another implementation, the connecting portion can be a second through hole passing through the extension 153.

[0299] Figure 31 This is a front view of the second through hole provided in an embodiment of this application.

[0300] like Figures 27 to 31 As shown, along the y-axis direction, the second through hole 33 penetrates the extension 153.

[0301] FPC 22 passes through the second through-hole 33 to provide circuit connection to speaker assembly 17.

[0302] The second seal 24 fills the second through hole 33 to fix the FPC 22 and seal the first cavity 21. In this embodiment, the relative positional relationship between the FPC 22 and the second seal 24 is not limited when the second seal 24 fills the second through hole 33.

[0303] In this embodiment, the arrangement of the first sealing member 28 can be referred to the foregoing embodiments. The arrangement of the other components in this embodiment can be referred to the foregoing embodiments, and will not be repeated here.

[0304] The electronic device shown in this embodiment combines the extension 153 with the baffle 143 to achieve the same height as the main body 141. Thus, the extension 153 and the baffle 143 together isolate the battery region 19. The side of the baffle 143 facing away from the battery can form an independent first cavity 21, which serves as the rear cavity of the speaker assembly 17. Since the first cavity 21 is isolated from the battery region 19 and can accommodate other electronic components, the electronic device 10 avoids the problem of vibration in the battery region that might occur when using the entire device space as an open rear cavity. It also avoids the problem of vibration in the battery cover 151 and the first display screen 152 corresponding to other non-cavity areas, and avoids the problem of affecting the thinness of the electronic device that might occur when using a large-volume sealed cavity as the rear cavity. In this embodiment, by providing at least one of the first groove 25, the second groove 31, the first through hole 32, and the second through hole 33, a circuit connection can be established within the independent first cavity 21 to enable the speaker assembly 17 to operate normally.

[0305] Figure 32 This is a schematic diagram of the fifth structure of the electronic device provided in the embodiments of this application.

[0306] Figure 33 yes Figure 32 A schematic diagram of the GG cross-section.

[0307] like Figure 32 and Figure 33 As shown, this embodiment uses the first cavity 21 at the bottom of the first body 11 as an example to illustrate the fifth cavity structure.

[0308] Figure 34 yes Figure 32 A magnified view of a portion of region A3.

[0309] like Figures 32 to 34 As shown, in this embodiment, the connecting portion can be a third through hole 34 disposed on the middle plate 142. The remaining structures in this embodiment can be referred to the foregoing embodiments, and will not be repeated here.

[0310] One end of the FPC 22 can be connected to the BTB connector 23, and the other end passes through the third through hole 34. In this way, the FPC 22 is located between the second display screen 16 and the middle plate 142.

[0311] It should be noted that after the other end of FPC 22 passes through the third through hole 34, it can exit from other through holes to enter the area in the electronic device 10 that provides circuit connections. For example, FPC 22 can exit from... Figure 32 The through-hole extends through area A4 as shown, allowing FPC 22 to receive power. The specific location of the through-hole for FPC 22 in this embodiment is not limited.

[0312] The second seal 24 can fill the third through hole 34 to fix the FPC 22 and seal the first cavity 21. The specific method by which the second seal 24 fills the third through hole 34 can be referred to the foregoing embodiments, and will not be repeated here. It should be noted that, for ease of explanation, the third through hole 34... Figure 33 and Figure 34 The second seal 24 is not shown in the image; in fact, Figure 33 and Figure 34 The area where the third through hole 34 is located is filled with the second seal 24. In this embodiment, the second seal 24 can be sealing foam or sealant.

[0313] Thus, in this embodiment, by placing the FPC 22 on the inner screen side, the circuit connection of the first cavity 21 is achieved.

[0314] Since the inner screen side is typically a low-utilization area in the electronic device 10, guiding the FPC 22 on the inner screen side can maximize the saving of internal space in the electronic device 10. Furthermore, the FPC 22 passing through the inner screen side effectively protects the PCB 18 from external damage or mechanical stress. Moreover, the placement of the FPC 22 on the inner screen side facilitates the replacement of the PCB 18. The electronic device shown in this embodiment, based on the first cavity 21 formed in the aforementioned embodiment, places the FPC 22 on the inner screen side by opening a third through-hole 34 on the middle plate 142. This not only establishes a circuit connection within the independent first cavity 21 to enable the speaker assembly 17 to operate normally, but also saves internal space in the electronic device 10.

[0315] Figure 35 This is a schematic diagram of the sixth structure of the electronic device provided in the embodiments of this application.

[0316] Figure 36 yes Figure 35 A schematic diagram of the HH cross-section.

[0317] like Figures 32 to 36 As shown, in this embodiment, the connection part is set in the same way as the fifth cavity structure in the previous embodiment. The connection part is the third through hole 34 set in the middle plate 142. However, in this embodiment, it is not necessary to seal the third through hole 34 by the second sealing member 24.

[0318] Specifically, the electronic device 10 includes a second cavity 35, which is surrounded by a middle plate 142 facing away from the housing assembly 15 and a second display screen 16.

[0319] Thus, the second cavity 35 and the first cavity 21 form a connected cavity based on the third through hole 34, so that the connected cavity serves as the rear cavity of the speaker assembly 17.

[0320] The second cavity 35 also includes a fourth through hole 36, which penetrates the middle plate 142. In practice, the fourth through hole 36 can also penetrate the battery barrier in other areas; the specific location of the fourth through hole 36 is not limited in this embodiment.

[0321] In this way, the FPC 22 passes through the third through hole 34, is located between the second display screen 16 and the middle plate 142, and then passes through the fourth through hole 36 to obtain power.

[0322] To further enhance the sealing performance, this connecting cavity also needs to be sealed.

[0323] The electronic device 10 also includes a third seal and a fourth seal.

[0324] The third seal is used to fill the fourth through hole 36 to fix the FPC 22 and seal the second cavity 35. The method by which the third seal fills the fourth through hole 36 can be referred to the filling method of the second seal 24 in the aforementioned embodiments, and will not be described in detail here.

[0325] Figure 37 This is a schematic diagram of the arrangement of the fourth sealing element provided in the embodiments of this application.

[0326] like Figure 37 As shown, the fourth seal 37 is disposed on the surface of the middle plate 142 away from the housing assembly 15 and between it and the second display screen 16, for sealing the second cavity 35.

[0327] The method by which the fourth seal 37 seals the second cavity 35 can be referred to the method by which the first seal 28 seals the first cavity in the foregoing embodiments, and will not be described in detail here.

[0328] The configuration of the other components in this embodiment can be referred to the foregoing embodiments, and will not be repeated here.

[0329] The cavity structure shown in this embodiment, based on the first cavity 21 formed in the aforementioned embodiment, connects to the second cavity 35 through the third through hole 34 to form a connected cavity. This connected cavity is isolated from the battery area 19 by both the baffle 143 and the middle plate 142. Furthermore, the third and fourth sealing elements 37 ensure the sealing of the connected cavity. Therefore, the electronic device 10 can avoid the problem of vibration of the battery area that may be caused by using the entire space as an open rear cavity, and also avoid the problem of vibration of the battery cover 151 and the first display screen 152 corresponding to other non-cavity areas. At the same time, it avoids the problem of affecting the thinness of the electronic device that may be caused by using a large-volume sealed cavity as the rear cavity.

[0330] Figure 38 This is a schematic diagram of the seventh structure of the electronic device provided in the embodiments of this application.

[0331] Figure 39 yes Figure 38 A schematic diagram of section II.

[0332] Figure 40 yes Figure 38 A partial schematic diagram of area A5 in the diagram.

[0333] like Figures 38 to 40 As shown, this embodiment uses the first cavity 21 at the bottom of the first fuselage 11 as an example to illustrate the seventh cavity structure.

[0334] In this embodiment, the connecting portion can be the fifth through hole 38 provided in the main body portion 141. The remaining structures in this embodiment can be referred to in the foregoing embodiments, and will not be repeated here.

[0335] One end of the FPC 22 can be connected to the BTB connector 23, and the other end passes through the pivot assembly 13 and the fifth through hole 38. In this way, the FPC 22 can pass through the first cavity 21 at the bottom of the first housing 11 to the first cavity 21 at the bottom of the second housing 12.

[0336] Since the first cavity 21 at the bottom of the second body 12 can obtain power in the manner provided in the aforementioned embodiment, the FPC 22 can obtain power after it is inserted into the first cavity 21 at the bottom of the second body 12.

[0337] The second sealing element 24 fills the fifth through hole 38 to fix the FPC 22 and seal the first cavity 21. In this embodiment, the fifth through hole 38 has a plurality of first hole surfaces 381.

[0338] Figure 41 This is a schematic diagram of the structure of the second sealing element provided in the embodiments of this application.

[0339] like Figure 41 As shown, the second seal 24 can be a movable part, and the material of this movable part can be rubber. Wherein, Figure 41 Different stereoscopic views of the second seal are shown.

[0340] Since the fifth through hole 38 in this embodiment has multiple first hole surfaces 381, the second sealing member 24 can be configured based on the shape of the fifth through hole 38, having multiple sealing surfaces 241 that can abut against the first hole surfaces 381. In this way, based on this configuration, it is not only convenient to install devices such as FPC 22, but also to improve the sealing performance of the first cavity 21.

[0341] Further as Figures 38 to 40 As shown, the electronic device 10 also includes a stepped portion 30.

[0342] A step portion 30 is provided on the surface of the connecting portion. The step portion 30 includes a first inclined surface 301, which is used to support the FPC 22 so as to reduce the bending angle when the FPC 22 passes through the connecting portion.

[0343] In this embodiment, one end of the stepped portion 30 is disposed on the surface of the fifth through hole 38 near the middle plate 142, and the other end extends toward the housing assembly 15. The end of the stepped portion 30 extending toward the housing assembly 15 is inclined in the direction of approaching the middle plate 142 on the side away from the first cavity 21, so as to form a first inclined surface 301.

[0344] In this way, the first inclined surface 301 can support the FPC 22, so that the FPC 22 will not be damaged due to excessive bending angle during the process of passing through the first cavity 21 at the bottom of the first body 11 to the first cavity 21 at the bottom of the second body 12. Thus, in this embodiment, the FPC 22 is set as a through-shaft FPC, realizing the circuit connection of the first cavity 21.

[0345] Since the FPC 22 in this embodiment is a through-shaft FPC, it can be configured based on the structure of the hinge assembly 13, effectively utilizing the internal space of the electronic device 10. Furthermore, because the through-shaft FPC is fixed within the mechanical structure of the hinge assembly 13, the hinge assembly 13 provides the through-shaft FPC with good mechanical strength and stability, ensuring that the electronic device 10 is not easily affected by physical damage or mechanical stress during use.

[0346] The electronic device shown in this embodiment, based on the first cavity 21 formed in the aforementioned embodiment, can establish a circuit connection within the independent first cavity 21 by designing the FPC22 as a through-axis FPC, so that the speaker assembly 17 can operate normally and the stability of the circuit connection is guaranteed.

[0347] Figure 42 This is the eighth structural schematic diagram of the electronic device provided in this application.

[0348] Figure 43 yes Figure 42 A schematic diagram of the JJ cross-section.

[0349] Figure 44 This is a schematic diagram of the first through hole provided in an embodiment of this application.

[0350] like Figures 42 to 44As shown, unlike the first cavity structure and the second cavity structure in the aforementioned embodiments, the connecting part is a first through hole 32 passing through the retaining wall part 143. It should be noted that in this embodiment, the retaining wall part 143 is the same height as the main body part 141, which is different from the height setting of the retaining wall part 143 in the fourth cavity structure in the aforementioned embodiments.

[0351] In this embodiment, the first through hole 32 has multiple second hole surfaces 321.

[0352] Accordingly, in this embodiment, the second sealing element 24 can be a movable element, and the material of the movable element can be rubber. Since the first through hole 32 in this embodiment has multiple second hole surfaces 321, the second sealing element 24 can be configured based on the shape of the first through hole 32, and has multiple sealing surfaces 241 that can abut against the second hole surfaces 321. In this way, based on this configuration, it is not only convenient to install devices such as FPC 22, but also to improve the sealing performance of the first cavity 21.

[0353] The arrangement of the sealing surface 241 in the second seal 24 can be referred to the foregoing embodiments, and will not be repeated here.

[0354] In this embodiment, one end of the stepped portion 30 is disposed on the surface of the first through hole 32 near the middle plate 142, and the other end extends toward the housing assembly 15. The side of the stepped portion 30 extending toward the housing assembly 15 away from the first cavity 21 is inclined toward the direction close to the middle plate 142 to form a first inclined surface 301.

[0355] In this embodiment, the arrangement of FPC 22 in the battery region 19 may differ from that in the previous embodiments. It should be noted that the arrangement of FPC 22 in the battery region 19 in this embodiment is merely illustrative; the specific arrangement of FPC 22 may also be the same as in the previous embodiments, and the various embodiments of this application can be referred to interchangeably.

[0356] Figure 45 This is a schematic diagram of a third configuration of the FPC in the battery area provided in this application embodiment.

[0357] like Figure 44 and Figure 45 As shown, in one implementation, during the process of the FPC 22 passing through the first through hole 32, it is fitted to the first inclined surface 301 to enter the battery region 19. Furthermore, the portion of the FPC 22 entering the battery region 19 may have a bending angle so that the FPC 22 is disposed on the surface of the battery 20 near the housing assembly 15, so that the FPC 22 is located between the battery 20 and the housing assembly 15.

[0358] Further as Figure 43 and Figure 44 As shown in the figure, this embodiment illustrates a fourth way of setting up the FPC in the battery area.

[0359] In one implementation, as the FPC 22 passes through the first through-hole 32, it is fitted against the first inclined surface 301 to enter the battery region 19. Furthermore, the portion of the FPC 22 entering the battery region 19 is fitted against the middle plate 142. In this way, the battery 20 can be placed on the surface of the FPC 22 facing away from the middle plate 142, so that the FPC 22 is located between the battery 20 and the middle plate 142.

[0360] The electronic device shown in this embodiment, based on the first cavity 21 formed in the aforementioned embodiment, establishes a circuit connection within the independent first cavity 21 by setting the connecting portion as a first through hole 32, thereby enabling the speaker assembly 17 to operate normally and ensuring the stability of the circuit connection. Furthermore, this embodiment provides multiple ways to arrange the FPC in the battery area to meet different assembly requirements. This application embodiment provides an electronic device 10, which may include the cavity structure of the aforementioned embodiments.

[0361] Based on the cavity structure in the foregoing embodiments, the electronic device 10 can have many more structures. This application does not limit the specific structure of the electronic device 10.

[0362] Figure 46 This is a schematic diagram of the ninth structure of the electronic device provided in the embodiments of this application.

[0363] like Figure 46 As shown, in one implementation, the electronic device 10 can use a combination of the second and seventh structures in the foregoing embodiments to provide a rear cavity for the speaker assembly 17.

[0364] The electronic device 10 provided in this application does not limit the specific combination of various structures.

[0365] The electronic device 10 shown in this application embodiment can form an independent cavity on the side of the baffle portion away from the battery area by having both the main body and the baffle portion of the middle frame abut against the housing assembly. This cavity serves as the rear cavity of the speaker assembly. Since this cavity is isolated from the battery area and can accommodate other electronic components, it avoids the problem of vibration of the battery area that may occur when using the whole device as an open rear cavity, as well as the problem of vibration of the battery cover and display screen corresponding to other non-cavity areas. At the same time, it avoids the problem of affecting the thinness of the electronic device that may occur when using a large-volume sealed cavity as the rear cavity.

[0366] It is readily understood that, based on the several embodiments provided in this application, those skilled in the art can combine, split, or reorganize the embodiments of this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0367] The above specific embodiments further illustrate the purpose, technical solution and beneficial effects of this application. It should be understood that the above are only specific embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this application should be included within the scope of protection of this application.

Claims

1. An electronic device (10), characterized in that, include: Mid-frame (14), housing assembly (15), speaker assembly (17), connecting part and flexible circuit board FPC (22); The middle frame (14) includes a main body (141), a middle plate (142), and a retaining wall (143). The main body (141) is disposed between the middle plate (142) and the outer shell assembly (15); The retaining wall portion (143) is disposed between the middle plate (142) and the outer shell assembly (15); The main body (141), the middle plate (142), the retaining wall (143), and the outer shell assembly (15) form a first cavity (21), and the speaker assembly (17) is disposed in the first cavity (21) so that the first cavity (21) serves as the rear cavity of the speaker assembly (17); The barrier (143) isolates the first cavity (21) from the battery area (19) of the electronic device (10). A portion of the retaining wall portion (143) extends along the length direction of the electronic device (10) to form an extension portion (1432). The extension (1432) includes a first groove (25) and a protrusion (29) on the side facing the housing assembly (15). The protrusion (29) is disposed on both sides of the first groove (25), and the first groove (25) is recessed in a direction away from the housing assembly (15). The connecting portion penetrates at least one of the first groove and the first sealing member (28) of the main body (141), the middle plate (142), and the retaining wall portion (143); The FPC (22) passes through the first groove (25); The first sealing element (28) is disposed between the main body (141) and the outer shell assembly (15), and between the main body (141) and the retaining wall (143) to seal the first cavity (21); The second seal (24) fills the first groove (25) to fix the FPC (22) and seal the first cavity (21); The portion of the first seal (28) corresponding to the extension (1432) is disposed on the surface of the protrusion (29) facing the housing assembly (15); In this case, the portion of the first seal (28) corresponding to the extension (1432) forms a misaligned structure with the second seal (24), such that the side of the second seal (24) facing the housing assembly (15) and the side of the first seal (28) facing the housing assembly (15) form a filled second surface, which is connected to the housing assembly (15) to seal the first cavity (21).

2. The electronic device (10) according to claim 1, characterized in that, One end of the main body (141) is connected to the middle plate (142), and the other end of the main body (141) abuts against the outer shell assembly (15); One end of the retaining wall (143) is connected to the middle plate (142), and the other end of the retaining wall (143) abuts against the outer shell assembly (15).

3. The electronic device (10) according to claim 1, characterized in that, Along a first direction, the housing assembly (15) and the middle plate (142) are arranged side by side, wherein the first direction is the thickness direction of the electronic device (10); The housing assembly (15) includes a battery cover (151) and / or a first display screen (152).

4. The electronic device (10) according to claim 3, characterized in that, Along the first direction, the height of the main body (141) is the same as the height of the retaining wall (143).

5. The electronic device (10) according to claim 3, characterized in that, The outer casing assembly (15) includes an extension (153) that protrudes from the surface of the outer casing assembly (15) toward the middle plate (142), wherein the extension (153) abuts against the retaining wall portion (143). Along the first direction, the main body (141) has a first height, the retaining wall (143) has a second height, and the extension (153) has a third height, the sum of the second height and the third height being equal to the first height.

6. The electronic device (10) according to claim 4 or 5, characterized in that, The connecting portion extends through the extension (153).

7. The electronic device (10) according to claim 6, characterized in that, The electronic device (10) also includes a printed circuit board (PCB) (18) and a board-to-board BTB connector (23). The PCB (18) is disposed on the surface of the middle plate (142) facing the housing assembly (15); The BTB connector (23) is disposed on the surface of the PCB (18) facing the housing assembly (15); One end of the FPC (22) passes through the connecting portion; The other end of the FPC (22) is connected to the BTB connector (23) to connect to the PCB (18).

8. The electronic device (10) according to claim 7, characterized in that, The surface of the middle plate (142) facing away from the outer shell assembly (15) and the second display screen (16) form a second cavity (35). The FPC (22) passes through one end of the connecting portion and enters at least one of the battery region (19), the second cavity (35), and the rotating shaft assembly (13).

9. The electronic device (10) according to claim 8, characterized in that, The electronic device (10) further includes a stepped portion (30) disposed on the surface of the communicating portion; The stepped portion (30) includes a first inclined surface (301) for supporting the FPC (22) so that the bending angle of the FPC (22) is reduced when it passes through the connecting portion.

10. The electronic device (10) according to claim 9, characterized in that, If the FPC (22) passes through the connecting portion into the battery region (19), the FPC (22) is located on the surface of the battery (20) facing the housing assembly (15); Alternatively, the FPC (22) is located on the surface of the battery (20) opposite to the housing assembly (15).

11. The electronic device (10) according to claim 7, characterized in that, The extension (1432) extends toward the interior of the first cavity (21); The portion of the first seal (28) corresponding to the extension (1432) includes: an L-shaped structure symmetrically arranged based on the central region of the first groove (25), the L-shaped structure including a first side and a second side; The first side forms a first projection area on the extension (1432), and the first projection area is formed by the first width of the side edge of the protrusion (29) away from the main body (141) extending along the length direction of the electronic device (10); The second side forms a second projection area on the extension (1432). The second projection area is formed by the second width of the protrusion (29) extending along the width direction of the electronic device (10) from one side edge of the protrusion (29) near the first groove (25). The second seal (24) is shaped to match the first seal (28) to form the second surface.

12. The electronic device (10) according to claim 7, characterized in that, The connecting portion includes a second groove (31) disposed in the extension portion (153); The second groove (31) is located on the side of the extension (153) away from the housing assembly (15), and the second groove (31) is recessed in a direction close to the housing assembly (15); The FPC (22) passes through the second groove (31); The second seal (24) fills the second groove (31) to fix the FPC (22) and seal the first cavity (21).

13. The electronic device (10) according to claim 7, characterized in that, The connecting portion includes a first through hole (32) disposed in the retaining wall portion (143); Along the length of the electronic device (10), the first through hole (32) penetrates the retaining wall portion (143). The FPC (22) passes through the first through hole (32); The second seal (24) fills the first through hole (32) to fix the FPC (22) and seal the first cavity (21).

14. The electronic device (10) according to claim 7, characterized in that, The connecting portion includes a second through hole (33) disposed in the extension portion (153); Along the length direction of the electronic device (10), the second through hole (33) passes through the extension (153). The FPC (22) passes through the second through hole (33); The second seal (24) fills the second through hole (33) to fix the FPC (22) and seal the first cavity (21).

15. The electronic device (10) according to claim 7, characterized in that, The electronic device (10) also includes a second display screen (16); The second display screen (16) is located on the side of the middle plate (142) opposite to the housing assembly (15); The connecting portion includes a third through hole (34) disposed in the middle plate (142). The FPC (22) passes through the third through hole (34) and is located between the second display screen (16) and the middle plate (142).

16. The electronic device (10) according to claim 15, characterized in that, The surface of the middle plate (142) facing away from the outer shell assembly (15) and the second display screen (16) form a second cavity (35). The first cavity (21), the second cavity (35) and the third through hole (34) are connected to form a communicating cavity, so that the communicating cavity serves as the rear cavity of the speaker assembly (17).

17. The electronic device (10) according to claim 16, characterized in that, The electronic device (10) also includes a fourth through hole (36) that penetrates the middle plate (142). The FPC (22) is inserted through the third through hole (34), located between the second display screen (16) and the middle plate (142), and then passes through the fourth through hole (36).

18. The electronic device (10) according to claim 17, characterized in that, The electronic device (10) further includes a third seal; the third seal is used to fill the fourth through hole (36) to fix the FPC (22) and seal the second cavity (35); A fourth seal (37) is disposed on the surface of the middle plate (142) away from the housing assembly (15) and between it and the second display screen (16) for sealing the second cavity (35).

19. The electronic device (10) according to claim 7, characterized in that, The electronic device (10) also includes a rotating shaft assembly (13). The first fuselage (11) and the second fuselage (12) are rotatably connected by the rotating shaft assembly (13); The connecting portion includes a fifth through hole (38) disposed in the main body portion (141). The FPC (22) passes through the pivot assembly (13) and the fifth through hole (38). The second seal (24) fills the fifth through hole (38) to fix the FPC (22) and seal the first cavity (21).

20. The electronic device (10) according to claim 6, characterized in that, The second seal (24) includes at least one of an adhesive component and a movable component; The adhesive component includes at least one of dispensing adhesive, backing adhesive, and sealing foam. The movable part matches the shape of the connecting part and includes at least one of rubber and silicone.

21. The electronic device (10) according to claim 1, characterized in that, The electronic device (10) also includes a damping mesh (26). The damping mesh (26) is disposed in the first cavity (21) to adjust the polarization of the speaker assembly (17) and balance the air pressure in the front and rear cavities corresponding to the speaker assembly (17).

22. The electronic device (10) according to claim 1, characterized in that, The electronic device (10) also includes a balance valve (27); The balance valve (27) is disposed in the first cavity (21) to balance the air pressure in the front and rear cavities corresponding to the speaker assembly (17).

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