Electronic device

Abstract

The present application relates to the technical field of electronic products. Disclosed is an electronic device, which is used for solving the technical problem of a key module being prone to being assembled improperly during an assembly process. The electronic device comprises a key body and a housing. The key body comprises a pressing structure and a trigger structure, wherein the pressing structure comprises an exterior surface, and the trigger structure is located on the side of the pressing structure facing away from the exterior surface; and the trigger structure comprises a first segment and a second segment, which are arranged in a first direction, the first segment being located between the pressing structure and the second segment, the second segment comprising a first body portion and a buffer member, and the buffer member being arranged at the end of the first body portion away from the first segment. The housing is provided with a first communication hole, the second segment is arranged in the first communication hole, and the first communication hole comprises a first hole opening facing the pressing structure. The orthographic projection of the first segment on a reference plane is a first projection, the orthographic projection of the first hole opening on the reference plane is a second projection, and the area of the first projection is greater than the area of the second projection, the reference plane being perpendicular to the first direction.

Description

electronic devices

[0001] This application claims priority to Chinese Patent Application No. 202411559837.X, filed with the State Intellectual Property Office of China on November 1, 2024, entitled “Electronic Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic product technology, and more particularly to an electronic device. Background Technology

[0003] Currently, electronic devices such as mobile phones and tablets are equipped with button modules to trigger one or more functions. For example, button modules can be used to control the power on / off of the electronic device, the screen power on / off, volume control, and camera control. However, button modules in this technology are prone to errors during assembly, affecting their reliability. Summary of the Invention

[0004] This application provides an electronic device to solve the technical problem that button modules are easily assembled incorrectly during the assembly process.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] This application provides an electronic device, including a button body and a housing. The button body includes a pressing structure and a triggering structure. The pressing structure includes an outer surface, and the triggering structure is located on the side of the pressing structure opposite to the outer surface. The triggering structure includes a first segment and a second segment arranged in a first direction. The first segment is located between the pressing structure and the second segment. The second segment includes a first body portion and a buffer member, with the buffer member disposed at the end of the first body portion away from the first segment. The housing has a first connecting hole, and the second segment is disposed within the first connecting hole. The pressing structure is located outside the first connecting hole, and the first connecting hole includes a first opening facing the pressing structure. The first segment is projected orthographically onto a reference plane as a first projection, and the first opening is projected orthographically onto the reference plane as a second projection. The area of ​​the first projection is larger than the area of ​​the second projection. The reference plane is perpendicular to the first direction.

[0007] In this way, when the trigger structure is assembled into the first connecting hole from the first opening with the second segment facing the pressing structure and the first segment facing the switch, the first segment of the trigger structure will be blocked outside the first opening or stuck inside the first connecting hole, making it impossible to assemble the trigger structure with the first connecting hole. Therefore, the first segment can form a foolproof structure for the trigger structure, allowing it to be detected in time when the trigger structure is assembled in the wrong orientation (i.e., the aforementioned second orientation), effectively preventing the trigger structure from being installed backwards and ensuring correct installation. This allows the buffer to be located at the end of the trigger structure furthest from the pressing structure, ensuring that the trigger structure can contact the switch with the help of the buffer to trigger the button module. This not only buffers the force between the first body and the switch, improving the pressing feel of the button body, but also helps prevent corrosion or swelling of the buffer, thus improving its reliability and effectively preventing switch failure, thereby improving the reliability of the button module.

[0008] In one possible implementation, the first segment includes a first end face and a second end face facing away from each other. The second end face faces away from the pressing structure, and the orthographic projection of the second end face onto the reference plane is a third projection. At least a portion of the third projection does not overlap with the second projection. In this way, as the button body moves relative to the housing, the first segment remains outside the first connecting hole, effectively preventing the first segment from getting stuck in the first connecting hole. This ensures smooth switching between the initial position and the triggered position of the button body, preventing the button body from getting stuck.

[0009] In one possible implementation, the first segment includes a first end face and a second end face facing away from each other, with the second end face facing away from the pressing structure. The area of ​​the first end face is greater than or equal to the area of ​​the second end face. This helps to ensure a larger contact area between the triggering structure and the pressing structure, thereby improving the stability of the fit between them and reducing the stress between them. This also helps to prevent damage to the pressing and triggering structures during compression, thus improving their reliability.

[0010] In one possible implementation, at least a portion of the cross-sectional area of ​​the first segment remains unchanged in the direction from the first end face to the second end face. This ensures that the first end face has a large area, simplifies the structure of the first segment, improves the processing efficiency of the trigger structure, and reduces the cost of the button body.

[0011] In another possible implementation, at least a portion of the cross-sectional area of ​​the first segment gradually decreases in the direction from the first end face to the second end face. This also ensures that the first end face has a large area.

[0012] In one possible implementation, the central axis of the first segment is collinear with the central axis of the first body. This improves the uniformity of force distribution on the second segment, prevents the trigger structure from tilting during movement relative to the housing, effectively avoids jamming of the trigger structure, and improves the tactile feel and reliability of the button module.

[0013] In one possible implementation, the button module includes a seal fixed to the first body portion and sealingly connected between the first body portion and the wall of the first connecting hole. This seal prevents liquid from entering the receiving cavity through the first connecting hole, improving the waterproof performance of the electronic device.

[0014] In one possible implementation, the seal is located on the side of the buffer closer to the pressing structure. This seal prevents liquid from contacting the buffer, thereby reducing the risk of corrosion or swelling and further improving the buffer's reliability.

[0015] In one possible implementation, the seal and the buffer are formed as a single structural component. This allows the seal and buffer to be machined in the same step, simplifying the manufacturing process of the button module and improving processing efficiency.

[0016] In one possible implementation, the orthographic projection of the buffer onto the reference plane lies within the orthographic projection of the first body onto the reference plane. This helps to reduce the circumferential dimension of the second segment and facilitates the insertion of the buffer into the first opening, thereby reducing the assembly difficulty of the trigger structure.

[0017] In one possible implementation, the first body portion includes a first limiting structure, and the buffer member includes a second limiting structure, which cooperates with the first limiting structure. One of the first and second limiting structures is a limiting groove, and the other is a limiting protrusion. Thus, the cooperation between the first and second limiting structures increases the contact area between the first body portion and the buffer member, thereby improving the connection strength between them and effectively preventing the buffer member from detaching from the first body portion.

[0018] In one possible implementation, the first limiting structure is a limiting groove that penetrates the outer peripheral surface of the first body portion and is located between two opposite end faces of the first body portion in a first direction. This helps to further increase the contact area between the first body portion and the buffer member, thereby further improving the connection strength between the first body portion and the buffer member.

[0019] In one possible implementation, the first body part is made of metal, fiberglass, or plastic. This ensures the structural strength of the trigger rod, facilitates the transmission of force between the trigger rod and the switch element, and thus guarantees the sensitivity of the button module.

[0020] In one possible implementation, the buffer is made of plastic, silicone, or rubber. These materials have elastic deformation capabilities, which can buffer the force between the trigger structure and the switch, improve the pressing feel of the button module, prevent damage to the switch during pressure, extend the service life of the switch, and thus improve the reliability and lifespan of the button module.

[0021] In one possible implementation, the first segment and the first body are formed as an integral structural component. This simplifies the manufacturing process of the trigger structure and improves the connection strength between the first segment and the first body, thereby enhancing the overall structural strength of the trigger structure. Furthermore, it improves the assembly precision between the first segment and the first body, facilitating control of the overall tolerances of the trigger structure and consequently controlling the interference between the trigger structure and the switching element. This effectively prevents issues such as false presses or over-presses during the pressing process, thus improving the tactile feedback of the button module and enhancing the reliability of the switching element.

[0022] In one possible implementation, the buffer and the first body are formed as an integral structural component. This improves the connection strength between the buffer and the first body, enhances their assembly precision, reduces the overall tolerance of the trigger structure, improves the tactile feedback of the button module, and increases the reliability of the switch.

[0023] In one possible implementation, the buffer element is formed onto the first body part via injection molding. This process is simple and easy to implement.

[0024] In one possible implementation, the trigger structure abuts against the pressing structure. Specifically, both ends of the trigger structure can abut against the pressing structure and the switching element, respectively. This allows the pressing structure and the trigger structure to move relative to each other during assembly, facilitating adjustment of their relative positions, absorbing flatness tolerances or errors in the connecting surfaces of the pressing structure, and ensuring that the first end face of the trigger structure fits snugly against the pressing structure. This helps reduce the flatness requirements of the connecting surfaces in the pressing structure.

[0025] In one possible implementation, the housing has a mounting groove and a second connecting hole. The two ends of the second connecting hole communicate with the mounting groove and the first connecting hole, respectively. At least a portion of the pressing structure is disposed within the mounting groove, and at least a portion of the first segment is disposed within the second connecting hole. The surface containing at least a portion of the hole wall of the second connecting hole is located between the surface containing the groove sidewall of the mounting groove and the surface containing the hole wall of the first connecting hole. This design helps to reduce the depth of the mounting groove, thereby reducing the volume of the mounting cavity and improving the structural strength of the housing.

[0026] In one possible implementation, the pressing structure includes a fingerprint recognition component, a flexible electrical connector, and a reinforcing plate. The fingerprint recognition component is electrically connected to the flexible electrical connector, and the reinforcing plate is stacked on top of the fingerprint recognition component, with a portion of the flexible electrical connector located between the reinforcing plate and the fingerprint recognition component. This allows the fingerprint button and function buttons (such as power buttons and volume control buttons) to be integrated into a single two-in-one button, reducing the overall space occupied by the fingerprint button and function buttons and enabling miniaturized design of electronic devices. Attached Figure Description

[0027] Figure 1 is a schematic diagram of an electronic device provided in some embodiments of this application in an unfolded state;

[0028] Figure 2 is a schematic diagram of the electronic device shown in Figure 1 when it is in a folded state;

[0029] Figure 3 is a cross-sectional view of the electronic device shown in Figure 1 at line AA;

[0030] Figure 4 is a schematic diagram of the assembly of the button module and the housing provided in some embodiments of this application;

[0031] Figure 5 is a cross-sectional view of the assembly schematic diagram shown in Figure 4 at line BB;

[0032] Figure 6 is a perspective view of the button module in the electronic device shown in Figure 1;

[0033] Figure 7 is a partial cross-sectional view of an electronic device provided in some other embodiments of this application;

[0034] Figure 8 is a perspective view of the button module in the electronic device shown in Figure 7;

[0035] Figure 9 is a partial cross-sectional view of an electronic device provided in some embodiments of this application;

[0036] Figure 10 is a perspective view of the button module in the electronic device shown in Figure 6;

[0037] Figure 11 is a partial perspective view of the housing in the electronic device shown in Figure 9;

[0038] Figure 12 is an enlarged view of region A in the electronic device shown in Figure 9;

[0039] Figure 13 is a perspective view of the trigger structure in the button module shown in Figure 10;

[0040] Figure 14 is an exploded view of the triggering structure shown in Figure 13;

[0041] Figure 15 is a cross-sectional view of the trigger structure shown in Figure 13 at the CC line;

[0042] Figure 16 is a cross-sectional view of the trigger structure provided in some other embodiments of this application;

[0043] Figure 17 is a cross-sectional view of the triggering structure provided in some embodiments of this application;

[0044] Figure 18 is a cross-sectional view of the trigger structure provided in some embodiments of this application.

[0045] Reference numerals: Electronic device 100; Screen 10; First display portion 11; Second display portion 12; Third display portion 13; Housing assembly 20; Housing 21; Middle frame 211; Middle plate 2111; Frame 2112; Back cover 212; Receiving cavity Q1; Mounting cavity Q2; First opening K1; Second opening K2; Mounting groove Q21; First groove bottom wall Q211; Groove side wall Q212; First connecting hole Q22; First opening K3; Second connecting hole Q23; Rotating shaft mechanism 22; Limiting block 23; Button module 30; Button body 31; pressing structure 311; outer surface m11; fingerprint recognition component 3111; substrate 3111a; fingerprint recognition chip 3111b; encapsulation structure 3111c; flexible electrical connector 3112; reinforcing plate 3113; trigger rod 312; limiting hook 313; first connecting part 3131; second connecting part 3132; limiting groove C1; trigger structure 314; first segment 3141; first end face n11; second end face n12; second segment 3142; first body part H1; positioning groove C2; ​​first limiting structure H11; buffer H2; second limiting structure H21; bottom plate H22; side plate H23; sealing member 315; switch assembly 32; button circuit board 321; switch component 322. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0047] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0048] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0049] In the description of the embodiments of this application, "and / or" is merely a way of describing the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after it are in an "or" relationship.

[0050] In the embodiments of this application, directional terms such as "lateral", "longitudinal", "inner", and "outer" may be defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms can be relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0051] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, "linking" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Rotary connection" refers to a connection where the components can rotate relative to each other after connection. "Sliding connection" refers to a connection where the components can slide relative to each other after connection. "Transmission connection" refers to a connection where the movement of one component can be transmitted to the other component. The connection methods between the two components include, but are not limited to, at least one of the following connection methods: rotary connection, sliding connection, gear meshing transmission connection, sprocket transmission connection, cam mechanism transmission connection, etc.

[0052] In the description of embodiments of this application, the terms "perpendicular," "parallel," and "collinear" include the described situation and situations similar to the described situation, where the range of similarity is within an acceptable deviation range. For example, "parallel" includes absolute parallelism and approximately parallelism, wherein the acceptable deviation range for approximately parallelism can be, for example, within 15°; "perpendicular" includes absolute perpendicularity and approximately perpendicularity, wherein the acceptable deviation range for approximately perpendicularity can also be, for example, within 15°; "collinear" includes absolute collinearity and approximately collinearity, wherein the acceptable deviation range for approximately collinearity can also be, for example, within 15°.

[0053] To facilitate understanding, before providing a detailed description of the electronic devices in the embodiments of this application, the relevant terms involved in the embodiments of this application will be explained first.

[0054] Orthographic projection: refers to projection in which the projection lines are perpendicular to the projection plane.

[0055] Contact: refers to two parts coming into contact with each other, and there is a squeezing force between the two parts.

[0056] This application provides an electronic device with a button module. To prevent the trigger structure in the button body from being installed in the wrong orientation, the electronic device in this application improves the trigger structure by forming a foolproof structure on it. When the trigger structure is assembled in the wrong orientation, it can be detected in time, thereby effectively preventing the trigger structure from being installed in the wrong orientation and achieving correct installation of the trigger structure.

[0057] This application provides an electronic device, including but not limited to mobile phones, tablets, laptops, personal computers, in-vehicle devices, e-readers, smart screens (TVs), monitors, speakers, portable music players, radios, wearable devices, and medical devices. Wearable devices include, but are not limited to, augmented reality (AR) glasses, AR headsets, virtual reality (VR) glasses, VR headsets, watches, wristbands, and headphones.

[0058] The electronic device can be a foldable electronic device (such as a foldable screen phone) or a non-foldable electronic device (such as a candybar phone). The embodiments of this application use a foldable screen phone as an example for illustrative purposes, which should not be construed as limiting the embodiments of this application.

[0059] Please refer to Figure 1, which is a schematic diagram of an electronic device 100 provided in some embodiments of this application in an unfolded state. The electronic device 100 includes a screen 10, a housing assembly 20, and a button module 30.

[0060] Screen 10 is used to display images, videos, and other information. In this embodiment, screen 10 is a flexible screen, capable of bending and deforming between a folded state and an unfolded state. Referring to Figure 1, screen 10 includes a first display portion 11, a second display portion 12, and a third display portion 13. The third display portion 13 is connected between the first display portion 11 and the second display portion 12. When screen 10 is in the unfolded state, it can achieve large-screen display, providing users with richer information and a better user experience.

[0061] In Figure 1, the first display portion 11, the second display portion 12, and the third display portion 13 are schematically divided by dashed lines. These dashed lines do not actually exist in the screen 10. The same interpretation applies to the dashed lines on other components mentioned later, and they will not be elaborated upon further.

[0062] Please refer to Figure 2, which is a structural schematic diagram of the electronic device 100 shown in Figure 1 in a folded state. The screen 10 of this electronic device 100 is also in a folded state. Specifically, when the screen 10 is folded, the first display portion 11 and the second display portion 12 of the screen 10 are opposite each other, and the third display portion 13 is bent. At this time, the third display portion 13 can be teardrop-shaped, U-shaped, etc. In this state, the electronic device 100 is smaller in size and easier to carry.

[0063] It is understood that in other embodiments, when the electronic device 100 is in a folded state, the third display portion 13 of the screen 10 can also be folded into other shapes, and this application embodiment does not limit this. Additionally, in the embodiment shown in FIG2, when the electronic device 100 is in a folded state, the housing assembly 20 protects the outside of the screen 10, and the screen 10 is not visible to the user. That is, the electronic device 100 is an inward-folding electronic device. In other embodiments, when the electronic device 100 is in a folded state, the screen 10 can also be located outside the housing assembly 20, and the screen 10 is visible to the user. That is, the electronic device 100 is an outward-folding electronic device.

[0064] The housing assembly 20 can be used to support the screen 10. Specifically, the screen 10 can be mounted on the housing assembly 20. Please refer to Figure 3, which is a cross-sectional view of the electronic device 100 shown in Figure 1 at line AA. The housing assembly 20 includes a pivot mechanism 22 and two housings 21. The two housings 21 can respectively support the first display portion 11 and the second display portion 12 of the screen 10. The pivot mechanism 22 is connected between the two housings 21 and can be used to support the third display portion 13 of the screen 10. The two housings 21 can rotate relative to each other through the pivot mechanism 22.

[0065] In this embodiment, the housing assembly 20 includes two housings 21, and the housing assembly 20 can be folded once. It is understood that in other embodiments, the housing assembly 20 may also include three, four, or more housings 21, and adjacent housings 21 can be connected by a pivot mechanism 22. Thus, the housing assembly 20 can be folded multiple times (two or more times).

[0066] The housing 21 is approximately rectangular flat. For ease of description in the following embodiments, an XYZ coordinate system is established for the housing 21. Specifically, the width direction of the housing 21 is defined as the X-axis, the length direction as the Y-axis, and the thickness direction as the Z-axis. It is understood that the coordinate system setting of the electronic device 100 can be flexibly set according to actual needs and is not specifically limited here. Furthermore, in some other embodiments, the housing 21 may also be square flat, circular flat, elliptical flat, etc.

[0067] Referring to Figure 3, each housing 21 may include a mid-frame 211 and a back cover 212, with a portion of the screen 10 supported on the mid-frame 211. The back cover 212 is fixedly connected to the mid-frame 211 and is located on the side of the mid-frame 211 away from the screen 10. A receiving cavity Q1 is formed between the mid-frame 211 and the back cover 212, which can be used to accommodate electronic components such as the main circuit board 40, battery, camera module, and speaker module. In foldable electronic devices, there may be multiple main circuit boards 40, batteries, and other electronic components. For example, in some embodiments, each housing 21 may contain a main circuit board 40 and a battery.

[0068] In some embodiments, the material of the mid-frame 211 may include at least one of metal, plastic, glass, and ceramic. The material of the back cover 212 may also include at least one of metal, plastic, glass, and ceramic. It is understood that in other embodiments, when the electronic device 100 is an inward-folding electronic device, at least one back cover 212 may also include an additional screen. Thus, when the electronic device 100 is in the folded state, the additional screen can be used as an external screen for the electronic device 100.

[0069] Referring to Figure 3, the middle frame 211 may include a middle plate 2111 and a frame 2112. The middle plate 2111 can serve as a supporting skeleton for the electronic device 100. For example, electronic components such as the battery and main circuit board 40 of the electronic device 100 can be fixed to the middle plate 2111. The middle plate 2111 can be located between the screen 10 and the back cover 212. Specifically, the middle plate 2111 and the back cover 212 are spaced apart in the Z-axis direction.

[0070] In some embodiments, the middle plate 2111 is a metal component. Specifically, the middle plate 2111 can be made of a metal material. For example, the middle plate 2111 can be an aluminum alloy component, a magnesium-aluminum alloy component, a stainless steel component, etc. This can improve the structural strength of the middle plate 2111, ensure the supporting stability of the middle plate 2111, and improve the impact resistance and fracture resistance of the middle plate 2111, meeting the requirements of battery safety and thus improving the safety performance of the electronic device 100.

[0071] The frame 2112 can surround the outer periphery of the middle plate 2111. The frame 2112 can be annular, such as a rectangular ring. Alternatively, the frame 2112 can be provided only on one, two, or three edges of the middle plate 2111. Specifically, the edge of the middle plate 2111 can be fixedly connected to the inner surface of the frame 2112. In this embodiment, the "inner surface" refers to the surface of the component facing the interior of the housing 21. Correspondingly, the "outer surface" refers to the surface of the component facing the exterior of the housing 21.

[0072] The frame 2112 may include at least one of a metal frame and a plastic frame. In some embodiments, the frame 2112 and the middle plate 2111 may be an integral structural component. Alternatively, in other embodiments, the frame 2112 and the middle plate 2111 may be separate components, in which case the frame 2112 and the middle plate 2111 may be fixed by means of bonding, welding, snap-fitting, screw connection, etc.

[0073] It should be noted that the "integrated structural component" described in this application embodiment can be a structural component formed in one piece. For example, the integrated structural component can be integrally formed using processes such as stamping, etching, casting, forging, computerized numerical control (CNC), and metal injection molding (MIM). Alternatively, the integrated structural component can also be a structural component formed using processes such as insert molding and liquid injection molding (LIM).

[0074] The button module 30 can be used to trigger one or more functions of the electronic device 100. The number of button modules 30 can be one or more. The button module 30 can be electrically connected to the main circuit board 40 of the electronic device 100. For example, the button module 30 may include at least one of volume control buttons and a power button. Thus, the electronic device 100 can be operated via the button module 30 to perform operations such as volume adjustment, power on / off, screen lock, unlock, wake-up, and camera control.

[0075] Please refer to Figures 4 and 5. Figure 4 is a schematic diagram of the assembly of the button module 30 and the housing 21 provided in some embodiments of this application, and Figure 5 is a cross-sectional view of the assembly schematic diagram shown in Figure 4 at line BB. The button module 30 includes a button body 31 and a switch assembly 32. The switch assembly 32 may be disposed within the receiving cavity Q1. In some embodiments, the switch assembly 32 includes a button circuit board 321 and a switch element 322. The button circuit board 321 is electrically connected to the main circuit board 40 of the electronic device 100. The button circuit board 321 may be a flexible circuit board, a rigid circuit board, or a rigid-flex circuit board. The switch element 322 may be electrically connected to the surface of the button circuit board 321 facing the button body 31. For example, the switch element 322 may be a dome switch.

[0076] The button body 31 is used to cooperate with the switch assembly 32 to trigger the corresponding function of the electronic device 100. The button body 31 is disposed in the housing 21 and can move relative to the housing 21 between an initial position and a triggered position. The "initial position" can be the position of the button body 31 in its natural state before being pressed. When the button body 31 is in the initial position, it can be in contact with or spaced apart from the switch assembly 322, and the signal between the switch assembly 322 and the main circuit board 40 is disconnected. The "triggered position" can be the position of the button body 31 when it is pressed and can trigger the corresponding function. When the button body 31 is in the triggered position, it can abut against the switch assembly 322, and the signal between the switch assembly 322 and the main circuit board 40 is connected.

[0077] Referring to Figure 5, the housing 21 has a mounting cavity Q2, which communicates with the receiving cavity Q1. At least a portion of the button body 31 is disposed within the mounting cavity Q2. The mounting cavity Q2 includes a first opening K1 and a second opening K2, with the second opening K2 located on the side of the first opening K1 closer to the receiving cavity Q1. The mounting cavity Q2 can communicate with the receiving cavity Q1 via the second opening K2.

[0078] In some embodiments, the first opening K1 is formed on the outer surface of the frame 2112. That is, the mounting cavity Q2 penetrates the outer surface of the frame 2112. In this case, the button module 30 can be formed as a side button of the electronic device 100. It is understood that in other embodiments, the first opening K1 can also be formed on the outer surface of the back cover 212. The mounting cavity Q2 penetrates the outer surface of the back cover 212. In this case, the button module 30 can be formed as a rear button of the electronic device 100.

[0079] Please refer to Figure 6, which is a perspective view of the button module 30 in the electronic device 100 shown in Figure 1. In some embodiments, the button body 31 includes a pressing structure 311 and a trigger lever 312. Exemplarily, the pressing structure 311 may be elongated. The pressing structure 311 has an external surface m11, which is exposed through a first opening K1. The external surface m11 can be used to contact the user's finger, allowing the user to apply pressing pressure to the button body 31 through the external surface m11.

[0080] In some embodiments, referring to Figures 5-6, the pressing structure 311 includes a fingerprint recognition component 3111, a flexible electrical connector 3112, and a reinforcing plate 3113. An appearance surface m11 is formed on one side surface of the fingerprint recognition component 3111. In this embodiment, the appearance surface m11 can also be formed as a fingerprint acquisition surface. This allows the fingerprint button and function buttons (e.g., power button, volume control button, etc.) to be integrated into a single button, reducing the overall space occupied by the fingerprint button and function buttons and achieving miniaturization of the electronic device 100. The fingerprint recognition component 3111 can be used to acquire and recognize fingerprints. In some embodiments, the fingerprint recognition component 3111 may include a substrate 3111a, a fingerprint recognition chip 3111b, and a packaging structure 3111c. The fingerprint recognition chip 3111b is disposed on one side surface of the substrate, and the packaging structure 3111c is disposed on the substrate 3111a and encapsulates the fingerprint recognition chip 3111b.

[0081] The flexible electrical connector 3112 is used to electrically connect the fingerprint recognition component 3111 to the main circuit board 40. For example, the flexible electrical connector 3112 can be a flexible circuit board. The fingerprint recognition chip can be electrically connected to the flexible electrical connector 3112, and the flexible electrical connector 3112 can be electrically connected to the main circuit board 40.

[0082] The reinforcing plate 3113 is used to support and fix the flexible electrical connector 3112. The reinforcing plate 3113 is stacked on top of the fingerprint recognition component 3112. The reinforcing plate 3113 is located on the side of the fingerprint recognition component 3111 facing away from the external surface m11. A portion of the flexible electrical connector 3112 can be fixed to the surface of the reinforcing plate 3113 facing the fingerprint recognition component 3111. The flexible electrical connector 3112 and the reinforcing plate 3113 can be fixed together by means of bonding, welding, snap-fitting, etc. Similarly, the flexible electrical connector 3112 and the fingerprint recognition component 3111 can also be fixed together by means of bonding, welding, snap-fitting, etc.

[0083] The reinforcing plate 3113 may be in the form of a flat plate. In some embodiments, the reinforcing plate 3113 may be a metal plate. Exemplary examples include stainless steel, aluminum alloy, magnesium alloy, magnesium-aluminum alloy, etc. Exemplary examples include the reinforcing plate 3113 as a 3D steel sheet.

[0084] It is understood that in other embodiments, the button module 30 may also be a function button. In this case, the button module 30 may not include the fingerprint recognition component 3111 and the flexible electrical connector 3112.

[0085] Please refer to Figures 5-6. The trigger lever 312 is located on the side of the pressing structure 311 facing away from the external surface m11. Specifically, the trigger lever 312 is located between the pressing structure 311 and the switch element 322. The trigger lever 312 is elongated. For example, the trigger lever 312 can be cylindrical. When the user applies pressure to the pressing structure 311, the pressing structure 311 can move towards the switch element 322, and move the trigger lever 312 together. The trigger lever 312 can squeeze the switch element 322, so that the switch element 322 is connected to the signal on the keypad circuit board 321. When the user removes the pressure applied to the pressing structure 311, the trigger lever 312 moves away from the switch element 322, and pushes the pressing structure 311 away from the switch element 322, disconnecting the signal on the switch element 322 from the signal on the keypad circuit board 321.

[0086] In some embodiments, the trigger lever 312 can be a rigid structural component. For example, the material of the trigger lever 312 may include metals (e.g., copper, aluminum, iron, stainless steel, etc.), rigid plastics, glass fiber materials, etc. This ensures the structural strength of the trigger lever 312, facilitates the transmission of force between the trigger lever 312 and the switch element 322, and thus guarantees the sensitivity of the button module 30.

[0087] To prevent the button body 31 from slipping out of the mounting cavity Q2, please refer to Figures 5 and 6. The button body 31 also includes a limiting hook 313, and the housing 21 is provided with a limiting block 23 that cooperates with the limiting hook 313. Specifically, the pressing structure 311 includes a connecting surface m12 opposite to the outer surface m11, and the limiting hook 313 can be fixed to the connecting surface m12. For example, the surface of the reinforcing plate 3113 facing away from the fingerprint recognition module can be formed as the connecting surface m12. The limiting hook 313 and the reinforcing plate 3113 can be integrally formed.

[0088] The number of limit hooks 313 can be one or more. For example, there can be two limit hooks 313, which are spaced apart along the length of the pressing structure 311, and the trigger rod 312 can be located between the two limit hooks 313. The number of limit blocks 23 is equal to the number of limit hooks 313.

[0089] In some embodiments, the limiting hook 313 has a limiting groove C1, and the limiting block 23 can be inserted into the limiting groove C1. Exemplarily, the limiting hook 313 includes a first connecting portion 3131 and a second connecting portion 3132. The first connecting portion 3131 is fixed to the connecting surface m12, and the second connecting portion 3132 is fixed to the first connecting portion 3131, with the second connecting portion 3132 spaced apart from the connecting surface m12. The limiting hook 313 can be generally L-shaped. The first connecting portion 3131 and the second connecting portion 3132 form the limiting groove C1.

[0090] Referring to Figure 5, the limiting block 23 can be located between the connecting surface m12 of the pressing structure 311 and the second connecting part 3132. In this way, the limiting block 23 and the second connecting part 3132 can cooperate to prevent the button body 31 from moving away from the switch member 322.

[0091] Please refer to Figures 5 and 6. The button module 30 also includes a seal 315. The seal 315 is connected between the outer peripheral surface of the trigger rod 312 and the inner wall surface of the mounting cavity Q2. In this way, liquid can be effectively prevented from entering the interior of the electronic device 100, which can improve the waterproof performance of the electronic device 100 and help to achieve the IPX8 waterproof requirement of the electronic device 100.

[0092] Furthermore, the button module 30 also includes a buffer H2. The buffer H2 can undergo elastic deformation. The buffer H2 can be a plastic part, silicone part, rubber part, foam, etc. For example, the material of the buffer H2 can be thermoplastic polyurethane (TPU) or thermoplastic polyester elastomer (TPEE). Both thermoplastic polyurethane and thermoplastic polyester elastomer have excellent resilience and good wear resistance, ensuring that the buffer H2 has good cushioning performance.

[0093] In some embodiments, as shown in Figures 5-6, the buffer H2 is located between the trigger rod 312 and the pressing structure 311. In some embodiments, the buffer H2 can be fixed to the pressing structure 311. For example, the buffer H2 and the pressing structure 311 can be fixed by adhesive, snap-fit, or other methods. In this way, the buffer H2 can buffer the force between the pressing structure 311 and the trigger rod 312, thereby buffering the force between the trigger rod 312 and the switch 322. This not only improves the pressing feel of the button module 30, but also helps to prevent damage to the switch 322 during pressure, extending the service life of the switch 322, and thus improving the reliability and service life of the button module 30.

[0094] However, in this embodiment, the distance between the buffer H2 and the first opening K1 is relatively short, and the buffer H2 is located on the side of the seal 315 closer to the first opening K1. That is, the buffer H2 is located on the outside of the seal 315. When liquid enters the mounting cavity Q2 from the first opening K1, the liquid may come into contact with the buffer H2. This increases the risk of corrosion of the buffer H2. Furthermore, the buffer H2 may swell after being immersed in liquid. The swollen buffer H2 increases in volume and pushes the trigger rod 312 toward the switch 322. On the one hand, this can easily lead to accidental activation of the switch 322; on the other hand, it can increase the force on the switch 322, causing the switch 322 to fail.

[0095] Furthermore, there is an assembly tolerance between the buffer H2 and the pressing structure 311, and the length of the trigger rod 312 also has a tolerance. For example, the tolerance between the surface of the buffer H2 away from the connecting surface m12 and the surface of the second connecting part 3132 near the connecting surface m12 is approximately ±0.07mm, and the length tolerance of the trigger rod 312 is approximately ±0.03mm. As a result, when the button body 31 is in its initial position, the interference between the trigger rod 312 and the switch 322 will have a tolerance of ±0.1mm. When the interference between the trigger rod 312 and the switch 322 is small, it is prone to play, affecting the pressing feel; when the interference between the trigger rod 312 and the switch 322 is large, it is prone to over-pressing, which also affects the pressing feel and increases the risk of switch 322 failure.

[0096] To improve both the tactile feedback of the button module 30 and the reliability of the switch 322, please refer to Figures 7 and 8. Figure 7 is a partial cross-sectional view of an electronic device 100 provided in some other embodiments of this application, and Figure 8 is a perspective view of the button module 30 in the electronic device 100 shown in Figure 7. The electronic device 100 in this embodiment differs from the electronic device 100 shown in Figure 5 in that the buffer H2 in this embodiment is fixed to one end of the back-pressing structure 311 of the trigger rod 312. Other structures of the button module 30 in this embodiment can be the same as those of the electronic device 100 shown in Figure 5.

[0097] In this way, on the one hand, the contact between the buffer H2 and the switch 322 can buffer the force between the trigger rod 312 and the switch 322, improving the pressing feel of the button module 30 and preventing damage to the switch 322 during pressure. On the other hand, it also helps to increase the distance between the buffer H2 and the first opening K1, and facilitates the placement of the buffer H2 on the side of the seal facing away from the first opening K1. This also helps to prevent liquid entering the mounting cavity Q2 from contacting the buffer H2, preventing corrosion or swelling of the buffer H2, thereby improving the performance of the buffer H2. The reliability can effectively prevent the failure of the switch 322. On the other hand, it can also integrate the buffer H2 and the trigger rod 312 into one piece, so that the buffer H2 and the trigger rod 312 can be supplied as a single structural component. There is no need to consider the assembly error between the buffer H2 and the pressing structure 311. During the processing, only the overall length tolerance of the buffer H2 and the trigger rod 312 needs to be considered, which is conducive to controlling the overall tolerance of the button body 31 and the amount of interference between the buffer H2 and the switch 322. This is conducive to improving the pressing feel of the button module 30 and improving the reliability of the switch 322.

[0098] In some embodiments, to ensure smooth assembly of the button body 31, the trigger rod 312 and the pressing structure 311 can be configured as separate parts. Specifically, the trigger rod 312 and the pressing structure 311 are independently machined. In this way, the pressing structure 311 can be assembled into the mounting cavity Q2 after the trigger rod 312 and the buffer H2 are assembled together. This reduces the flatness requirement of the connecting surface m12 of the trigger rod 312 to the pressing structure 311, and effectively avoids the situation where the trigger rod 312 cannot be assembled into the mounting cavity Q2 due to excessive tilting.

[0099] However, during assembly, the trigger rod 312 is easily installed in the wrong orientation, causing the buffer H2 to be located on the side of the trigger rod 312 closer to the pressing structure 311. This not only increases the risk of corrosion or swelling of the buffer H2, but also increases the risk of failure of the switch 322.

[0100] To ensure the correct installation of the button module 30, please refer to Figures 9 and 10. Figure 9 is a partial cross-sectional view of an electronic device 100 provided in some embodiments of this application, and Figure 10 is a perspective view of the button module 30 in the electronic device 100 shown in Figure 6. The button module 30 in this embodiment includes a button body 31 and a switch assembly 32. The button body 31 includes a pressing structure 311, a trigger structure 314, and a sealing member 315. The trigger structure 314 and the pressing structure 311 can be separate components. The specific structures of the pressing structure 311 and the switch assembly 32 in this embodiment can be designed with reference to the pressing structure 311 and the switch assembly 32 in any embodiment of this application, and will not be described in detail here.

[0101] The trigger structure 314 is located between the pressing structure 311 and the switching element 322. Specifically, referring to FIG10, the trigger structure 314 includes a first segment 3141 and a second segment 3142 arranged in the first direction e1, with the first segment 3141 located between the pressing structure 311 and the second segment 3142. The second segment 3142 includes a first body portion H1 and a buffer member H2, with the first body portion H1 fixed to the first segment 3141. Both the first segment 3141 and the first body portion H1 can be formed as part of the trigger rod 312. That is, the trigger rod 312 can include the first segment 3141 and the first body portion H1. The buffer member H2 is fixed to the first body portion H1, and at least a portion of the buffer member H2 is located on the side of the first body portion H1 away from the first segment 3141. That is, the buffer member H2 is fixed to the end of the first body portion H1 away from the first segment H1. The buffer member H2 can be used to abut against the switching element 322.

[0102] Please refer to Figures 11 and 12. Figure 11 is a partial perspective view of the housing 21 in the electronic device 100 shown in Figure 9, and Figure 12 is an enlarged view of region A in the electronic device 100 shown in Figure 9. The mounting cavity Q2 includes a mounting groove Q21 and a first connecting hole Q22. One end of the mounting groove Q21 is open, forming a first opening K1. The mounting groove Q21 also includes a first groove bottom wall Q211, which is opposite to the first opening K1 in a first direction e1. The movement direction of the button body 31 relative to the housing 21 can be parallel to the first direction e1.

[0103] At least a portion of the pressing structure 311 may be disposed within the mounting groove Q21. When the button body 31 is in the initial position, the pressing structure 311 may be entirely located within the mounting groove Q21, or a portion of the pressing structure 311 may pass through the first opening K1 and be located outside the mounting cavity Q2.

[0104] A first connecting hole Q22 is located between the mounting groove Q21 and the receiving cavity Q1, and connects the mounting groove Q21 and the receiving cavity Q1. The axial direction of the first connecting hole Q22 can be parallel to the first direction e1. The end of the first connecting hole Q22 away from the mounting groove Q21 forms a second open opening K2. The hole wall of the first connecting hole Q22 protrudes from the groove sidewall Q212 of the mounting groove Q21. At least a portion of the groove sidewall Q212 of the mounting groove Q21 is connected between the first open opening K1 and the first groove bottom wall Q211.

[0105] Referring to Figure 12, the second segment 3142 can be fitted into the first connecting hole Q22, and the second segment 3142 can move within the first connecting hole Q22 along the first direction e1. The second segment 3142 and the first connecting hole Q22 can be in clearance fit. In this way, on the one hand, an movable gap can be formed between the outer peripheral surface of the second segment 3142 and the hole wall surface of the first connecting hole Q22, which facilitates the movement of the second segment 3142 within the first connecting hole Q22, allowing the button body 31 to move smoothly between the initial position and the trigger position; on the other hand, the second segment 3142 can be adapted to the first connecting hole Q22, so that the second segment 3142 can be limited and guided by the second connecting hole Q22, which can improve the movement stability of the button body 31.

[0106] Referring to Figures 11 and 12, the first connecting hole Q22 includes a first opening K3 facing the pressing structure 311. In some embodiments, the orthographic projection of the first segment 3141 onto the reference plane is a first projection, the orthographic projection of the first opening K3 onto the reference plane is a second projection, and the orthographic projection of the second segment 3142 onto the reference plane is a fourth projection. The area of ​​the first projection is larger than the area of ​​the second projection, and the area of ​​the fourth projection is smaller than the area of ​​the second projection.

[0107] In this way, when the trigger structure 314 is assembled into the first connecting hole Q22 from the first open opening K1 with the first segment 3141 facing the pressing structure 311 and the second segment 3142 facing the switching element 322, the second segment 3142 of the trigger structure 314 can be smoothly assembled into the first connecting hole Q22, thus achieving the assembly of the trigger structure 314 and the first connecting hole Q22. However, when the trigger structure 314 is assembled into the first connecting hole Q22 from the first open opening K1 with the second segment 3142 facing the pressing structure 311 and the first segment 3141 facing the switching element 322, the first segment 3141 of the trigger structure 314 will be blocked outside the first opening K3, or the first segment 3141 will be stuck inside the first connecting hole Q22, preventing the assembly of the trigger structure 314 and the first connecting hole Q22 from being achieved.

[0108] Therefore, the first segment 3141 can be formed as a foolproof structure for the trigger structure 314. When the trigger structure 314 is assembled in the wrong orientation (that is, the second orientation mentioned above), it can be detected in time, thereby effectively preventing the trigger structure 314 from being installed backwards and realizing the correct installation of the trigger structure 314. This allows the buffer H2 to be located at the end of the trigger structure 314 away from the pressing structure 311, ensuring that the trigger structure 314 can contact the switch 322 with the help of the buffer H2 to trigger the button module 30. This not only buffers the force between the first body part H1 and the switch 322, improving the pressing feel of the button body 31, but also helps to prevent the buffer H2 from being corroded or swollen, thereby improving the reliability of the buffer H2 and effectively preventing the switch 322 from failing, which in turn helps to improve the reliability of the button module 30.

[0109] Please refer to Figure 13, which is a perspective view of the trigger structure 314 in the button module 30 shown in Figure 10. The first segment 3141 includes a first end face n11 and a second end face n12 facing away from each other, with the first end face n11 facing away from the second segment 3142. Specifically, the first end face n11 can abut against the pressing structure 311, and the second end face n12 is connected to the first body part H1.

[0110] In some embodiments, the area of ​​the first end face n11 is greater than or equal to the area of ​​the second end face n12. This helps to ensure a larger contact area between the trigger structure 314 and the pressing structure 311, thereby improving the stability of the fit between the pressing structure 311 and the trigger structure 314, and reducing the stress between the trigger structure 314 and the pressing structure 311. This helps to prevent damage to the pressing structure 311 and the trigger structure 314 during the pressing process, and thus improves the reliability of the pressing structure 311 and the trigger structure 314.

[0111] In some embodiments, referring to Figures 12-13, at least a portion of the cross-sectional area of ​​the first segment 3141 remains unchanged in the direction from the first end face n11 to the second end face n12. Specifically, in the direction from the first end face n11 to the second end face n12, either a portion of the cross-sectional area of ​​the first segment 3141 remains unchanged, or the entire cross-sectional area of ​​the first segment 3141 remains unchanged. The cross-sectional area of ​​the first segment 3141 refers to the area of ​​the cross-section obtained by cutting the first segment 3141 with a plane perpendicular to the first direction e1. The cross-section of the first segment 3141 is parallel to the reference plane.

[0112] For example, the first segment 3141 can be prismatic or cylindrical. The cross-sectional shape of the first segment 3141 can be circular, elliptical, racetrack-shaped, rectangular, polygonal, irregular, etc. This ensures that the first end face n11 has a large area and simplifies the structure of the first segment 3141, thereby improving the processing efficiency of the trigger structure 314 and reducing the cost of the button body 31.

[0113] It is understood that in other embodiments, at least a portion of the cross-sectional area of ​​the first segment 3141 may gradually decrease in the direction from the first end face n11 to the second end face n12. For example, the first segment 3141 may be frustum-shaped, truncated pyramidal, etc. This also ensures a large contact area between the trigger structure 314 and the pressing structure 311, while maintaining a simple structure and ease of processing.

[0114] In some embodiments, referring to FIG12, the orthographic projection of the second end face n12 onto the reference plane is a third projection, and at least a portion of the third projection does not overlap with the second projection (the orthographic projection of the first aperture K3 onto the reference plane). For example, a portion of the third projection does not overlap with the second projection, while another portion of the third projection overlaps with the second projection. Alternatively, in other embodiments, the entire third projection may not overlap with the second projection.

[0115] In this way, as the button body 31 moves relative to the housing 21, the first segment 3141 is always outside the first connecting hole Q22, which can effectively prevent the first segment 3141 from getting stuck in the first connecting hole Q22, thereby ensuring the smooth switching of the button body 31 between the initial position and the trigger position and preventing the button body 31 from getting stuck.

[0116] In some embodiments, as shown in FIG13, the orthographic projection of the second segment 3142 on the reference plane lies within the third projection. This is beneficial for improving the uniformity of force on the second segment 3142 and for preventing the trigger structure 314 from tilting during its movement relative to the housing 21, thereby improving the pressing feel of the button module 30.

[0117] Based on any of the above embodiments, the central axis O1 of the first segment 3141 and the central axis O2 of the second segment 3142 are collinear. This improves the uniformity of force distribution on the second segment 3142, prevents the trigger structure 314 from tilting during its movement relative to the housing 21, effectively prevents the trigger structure 314 from getting stuck, and improves the pressing feel and reliability of the button module 30.

[0118] In some embodiments, referring to Figures 11 and 12, the mounting cavity Q2 further includes a second connecting hole Q23. The two ends of the second connecting hole Q23 communicate with the mounting groove Q21 and the first connecting hole Q22, respectively. At least a portion of the first segment 3141 is disposed within the second connecting hole Q23. Specifically, one portion of the first segment 3141 is disposed within the second connecting hole Q23, while the other portion of the first segment 3141 is located outside the second connecting hole Q23. Alternatively, the entire first segment 3141 is located within the second connecting hole Q23.

[0119] The surface containing at least a portion of the wall surface of the second connecting hole Q23 is located between the surface containing the groove sidewall Q212 of the mounting groove Q21 and the surface containing the wall surface of the first connecting hole Q22. Specifically, at least a portion of the wall surface of the first connecting hole Q22 protrudes beyond the wall surface of the second connecting hole Q23, and at least a portion of the wall surface of the second connecting hole Q23 protrudes beyond the groove sidewall Q212 of the mounting groove Q21.

[0120] This helps to reduce the size of the mounting groove Q21 in the first direction e1 (that is, the depth of the mounting groove Q21), thereby reducing the volume of the mounting cavity Q2 and thus improving the structural strength of the housing 21.

[0121] In some embodiments, referring to FIG12, the seal 315 is sealingly connected between the first body portion H1 and the hole wall surface of the first connecting hole Q22. In this way, the seal 315 can prevent liquid from entering the receiving cavity Q1 from the first connecting hole Q22, thereby improving the waterproof performance of the electronic device 100.

[0122] Furthermore, referring to Figures 12 and 13, the seal 315 is located on the side of the buffer H2 closer to the first segment 3141. That is, the seal 315 is located on the outside of the buffer H2. In this way, the seal 315 can prevent liquid from contacting the buffer H2, thereby reducing the risk of corrosion or swelling of the buffer H2 and further improving the reliability of the buffer H2.

[0123] In some embodiments, the seal 315 is an elastic element. Exemplarily, the seal 315 is a plastic part, a rubber part, or a plastic component. In this way, the seal 315 has a certain elastic deformation capacity, which can improve the sealing performance between the first body portion H1 and the connecting hole.

[0124] In some embodiments, the seal 315 and the first body portion H1 are formed as an integral structural component. For example, the seal 315 can be injection molded to the first body portion H1. Specifically, the seal 315 can be connected to the first body portion H1 using an insert molding process or a liquid injection molding process. This simplifies the assembly process of the button body 31 and improves the connection reliability and assembly accuracy between the seal 315 and the first body portion H1.

[0125] Based on any of the above embodiments, the trigger structure 314 abuts against the pressing structure 311. Specifically, the trigger structure 314 and the pressing structure 311 are in contact with each other, and there is a compressive force between them. That is, the trigger structure 314 and the pressing structure 311 are not fixed together. It can be understood that the trigger structure 314 and the pressing structure 311 are no longer fixed by means of adhesives, welding, etc., and the trigger structure 314 and the pressing structure 311 are two independent structural components.

[0126] In this way, during the assembly process, the pressing structure 311 and the triggering structure 314 can move relative to each other, which makes it easier to adjust the relative position of the pressing structure 311 and the triggering structure 314, absorb the flatness tolerance or error of the connecting surface m12 in the pressing structure 311, and make the first end face n11 of the triggering structure 314 fit with the pressing structure 311, which helps to reduce the flatness requirement of the connecting surface m12 in the pressing structure 311.

[0127] In some embodiments, to improve the connection reliability between the seal 315 and the first body portion H1, please refer to FIG14, which is an exploded view of the trigger structure 314 shown in FIG13. The first body portion H1 is provided with a positioning groove C2, and the seal 315 is disposed in the positioning groove C2. For example, the positioning groove C2 can be an annular groove. In this way, the positioning groove C2 can limit the seal 315, prevent the seal 315 from sliding relative to the first body portion H1, thereby improving the positional stability of the seal 315 and preventing the seal 315 from falling out of the connection hole.

[0128] In some embodiments, the first body portion H1 can be a metal, rigid plastic, or fiberglass. For example, the material of the first body portion H1 can include at least one of stainless steel, copper, iron, and aluminum alloy. Similarly, the first segment 3141 can also be a metal, rigid plastic, or fiberglass. This ensures that the trigger structure 314 has high structural strength.

[0129] In some embodiments, the first segment 3141 and the first body portion H1 are formed as an integral structural component. Exemplarily, the first segment 3141 and the first body portion H1 can be processed by stamping, etching, casting, forging, CNC machining, MIM, injection molding, or other processes. This simplifies the processing of the trigger structure 314 and improves the connection strength between the first segment 3141 and the first body portion H1, thereby enhancing the overall structural strength of the trigger structure 314. Furthermore, it improves the assembly accuracy between the first segment 3141 and the first body portion H1, facilitating control of the overall tolerance of the trigger structure 314. For example, the overall tolerance of the trigger structure 314 can be controlled to approximately ±0.03mm, which helps control the interference between the trigger structure 314 and the switch element 322. This effectively avoids issues such as false presses or excessive presses during the pressing process, thereby improving the pressing feel of the button module 30 and enhancing the reliability of the switch element 322.

[0130] It is understood that in other embodiments, the first segment 3141 and the first body part H1 can also be separate components. For example, after the first segment 3141 and the first body part H1 are respectively processed and formed, they are then fixed together by means of adhesive, snap-fit, welding, screw connection, etc. In this way, the first segment 3141 and the first body part H1 can also be connected as a single structural component, which is also beneficial for overall control of the tolerances of the trigger structure 314.

[0131] In some embodiments, the buffer H2 and the first body H1 are formed as an integral structural component. For example, the buffer H2 can be injection molded to the first body H1. Alternatively, the buffer H2 can be connected to the first body H1 via insert molding or liquid injection molding. This improves the connection strength between the buffer H2 and the first body H1, enhances the assembly accuracy between them, reduces the overall tolerance of the trigger structure 314, improves the tactile feedback of the button module 30, and increases the reliability of the switch 322.

[0132] Of course, in other embodiments, the buffer H2 and the first body H1 can also be fixed by means of adhesive, snap-fit, screw connection, etc. In this way, the buffer H2 and the first body H1 can be connected as a single structural component, which is also beneficial for the overall control of the tolerance of the trigger structure 314.

[0133] In some embodiments, please refer to Figures 14-15. Figure 15 is a cross-sectional view of the trigger structure 314 shown in Figure 13 at the CC line. The first body part H1 includes a first limiting structure H11, and the buffer member H2 includes a second limiting structure H21. One of the first limiting structure H11 and the second limiting structure H21 is a limiting groove, and the other is a limiting protrusion. The limiting protrusion cooperates with the limiting groove.

[0134] In this way, the cooperation between the first limiting structure H11 and the second limiting structure H21 helps to increase the contact area between the first body part H1 and the buffer member H2, thereby improving the connection strength between the first body part H1 and the buffer member H2, and effectively preventing the buffer member H2 from falling off the first body part H1.

[0135] In some embodiments, referring to Figures 14-15, the first limiting structure H11 is a limiting groove, and the opening of the limiting groove is formed on the end face of the first body portion H1 facing away from the first segment 3141. That is, the limiting groove penetrates the end face of the first body portion H1 facing away from the first segment 3141. In this case, the second limiting structure H21 is a limiting protrusion. Specifically, the limiting protrusion is formed on the surface of the buffer member H2 facing the first segment 3141.

[0136] In other embodiments, please refer to FIG16, which is a cross-sectional view of the trigger structure 314 provided in other embodiments of this application. The trigger structure 314 in this embodiment differs from the trigger structure 314 shown in FIG15 in that the first limiting structure H11 in this embodiment is a limiting protrusion, and the second limiting structure H21 is a limiting groove.

[0137] In some embodiments, please refer to FIG17, which is a cross-sectional view of the trigger structure 314 provided in some embodiments of this application. The trigger structure 314 in this embodiment differs from the trigger structure 314 shown in FIG14 in that the first limiting structure H11 in this embodiment is a limiting groove, and the groove opening of the limiting groove is formed on the outer peripheral surface of the first body part H1. That is, the limiting groove penetrates the outer peripheral surface of the first body part H1. Specifically, the limiting groove is an annular groove. The outer peripheral surface of the first body part H1 refers to the surface between the end faces connecting the two axial ends of the first body part H1.

[0138] In this case, the second limiting structure H21 is a limiting protrusion. Specifically, please refer to Figure 17. In addition to the second limiting structure H21, the buffer member H2 may also include a base plate H22 and a side plate H23. The side plate H23 is fixed to the base plate H22, and the side plate H23 and the base plate H22 form an accommodating space. The base plate H22 can be fixed to the end face of the first body part H1 facing away from the first segment 3141, and the side plate H23 can be fixed to the outer peripheral surface of the first body part H1. The base plate H22 can be generally flat, and the side plate H23 can be cylindrical.

[0139] The second limiting structure H21 is fixed to the side plate H23 and protrudes from the inner wall of the accommodating space. This helps to further increase the contact area between the first body part H1 and the buffer member H2, thereby further improving the connection strength between the first body part H1 and the buffer member H2.

[0140] In some embodiments, the orthographic projection of the buffer H2 onto the reference plane lies within the orthographic projection of the first body portion H1 onto the reference plane. This facilitates reducing the circumferential dimension of the second segment 3142 and makes it easier to insert the buffer H2 into the first opening K3, thereby reducing the assembly difficulty of the trigger structure 314. Here, "circumferential" as used in the embodiments of this application refers to the direction surrounding the axial direction.

[0141] In some other embodiments, please refer to FIG18, which is a cross-sectional view of the trigger structure 314 provided in some other embodiments of this application. The trigger structure 314 in this embodiment differs from the trigger structure 314 in any of the above embodiments in that the seal 315 and the buffer H2 are formed as an integral structural component. In this way, the seal 315 and the buffer H2 can be processed and formed in the same step, which helps to simplify the processing steps of the button module 30 and improve processing efficiency.

[0142] Based on the descriptions of the above embodiments, the electronic device 100 in the embodiments of this application can prevent the trigger structure 314 from being installed incorrectly, which is beneficial to improving the pressing feel of the button module 30 and improving the reliability of the button module 30.

[0143] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0144] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electronic device, characterized in that, include: The button body includes a pressing structure and a triggering structure. The pressing structure includes an outer surface, and the triggering structure is located on the side of the pressing structure opposite to the outer surface. The triggering structure includes a first segment and a second segment arranged in a first direction. The first segment is located between the pressing structure and the second segment. The second segment includes a first body part and a buffer member. The buffer member is disposed at the end of the first body part away from the first segment. The housing has a first communicating hole, the second section is disposed inside the first communicating hole, and the pressing structure is located outside the first communicating hole. The first communicating hole includes a first opening facing the pressing structure. The first segment is projected onto the reference plane as a first projection, and the first opening is projected onto the reference plane as a second projection. The area of ​​the first projection is larger than the area of ​​the second projection. The reference plane is perpendicular to the first direction.

2. The electronic device according to claim 1, characterized in that, The first segment includes a first end face and a second end face that are opposite to each other. The second end face faces away from the pressing structure. The orthographic projection of the second end face on the reference plane is a third projection. At least a portion of the third projection does not overlap with the second projection.

3. The electronic device according to claim 1 or 2, characterized in that, The first segment includes a first end face and a second end face that are opposite to each other, the second end face being away from the pressing structure, and the area of ​​the first end face being greater than or equal to the area of ​​the second end face.

4. The electronic device according to claim 3, characterized in that, In the direction from the first end face to the second end face, at least a portion of the cross-sectional area of ​​the first segment remains unchanged.

5. The electronic device according to any one of claims 1-4, characterized in that, The central axis of the first segment is collinear with the central axis of the first body part.

6. The electronic device according to any one of claims 1-5, characterized in that, It includes a seal, which is fixed to the first body portion and is sealingly connected between the first body portion and the wall surface of the first communicating hole.

7. The electronic device according to claim 6, characterized in that, The seal is located on the side of the buffer near the pressing structure.

8. The electronic device according to claim 6 or 7, characterized in that, The sealing element and the buffer element are formed as an integral structural component.

9. The electronic device according to any one of claims 1-8, characterized in that, The first body part includes a first limiting structure, and the buffer includes a second limiting structure, which cooperates with the first limiting structure; one of the first limiting structure and the second limiting structure is a limiting groove, and the other is a limiting protrusion.

10. The electronic device according to claim 9, characterized in that, The first limiting structure is a limiting groove, which penetrates the outer peripheral surface of the first body part and is located between two opposite end faces of the first body part in the first direction.

11. The electronic device according to any one of claims 1-10, characterized in that, The first body part is a metal part, a fiberglass material part, or a plastic part.

12. The electronic device according to any one of claims 1-11, characterized in that, The buffer component is made of plastic, silicone, or rubber.

13. The electronic device according to any one of claims 1-12, characterized in that, The buffer component and the first body part are formed as an integral structural component.

14. The electronic device according to any one of claims 1-13, characterized in that, The triggering structure abuts against the pressing structure.

15. The electronic device according to any one of claims 1-14, characterized in that, The housing is provided with a mounting groove and a second connecting hole. The two ends of the second connecting hole are respectively connected to the mounting groove and the first connecting hole. At least a portion of the pressing structure is disposed in the mounting groove. At least a portion of the first segment is disposed in the second connecting hole. The surface of at least a portion of the hole wall of the second connecting hole is located between the surface of the groove sidewall of the mounting groove and the surface of the hole wall of the first connecting hole.

16. The electronic device according to any one of claims 1-15, characterized in that, The pressing structure includes a fingerprint recognition component, a flexible electrical connector, and a reinforcing plate. The fingerprint recognition component is electrically connected to the flexible electrical connector. The reinforcing plate is stacked on top of the fingerprint recognition component, and a portion of the flexible electrical connector is located between the reinforcing plate and the fingerprint recognition component.

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