terminal device

Abstract

This application discloses a terminal device, belonging to the field of electronic technology. The terminal device includes a mid-frame, a battery cover, and a camera module. Since the lens in the camera module can be fixed within a mounting slot in the battery cover—for example, the lens can be fixed in the mounting slot by a lens support—it is not necessary to fix the lens within the cavity formed by the mid-frame and the battery cover. Therefore, the positional distribution of the lens in the camera module is not restricted by other components, resulting in high flexibility in lens assembly. Furthermore, since the area within the lens of the camera module, except for the light-transmitting area, is opaque, the lens can enhance the appearance of the terminal device. Therefore, when the positional distribution of the lens is not restricted by other components, the lens area can be increased, thereby improving the recognizability and aesthetics of the terminal device.

Description

Technical Field

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

[0002] With the continuous development of electronic technology, terminal devices equipped with camera modules are becoming increasingly common. Camera modules enable terminal devices to have functions such as taking photos and videos, greatly enriching and expanding the scope of use of terminal devices.

[0003] Generally, a camera module in a terminal device includes a camera, a lens, and a lens support (Deco). All components of this camera module are installed inside the cavity of the terminal device, which usually also houses other components (such as a battery and motherboard). Therefore, the positional relationship between the camera module and other components must be considered when installing the camera module, which restricts the distribution of the camera module within the cavity and reduces the assembly flexibility of the camera module. Summary of the Invention

[0004] This application provides a terminal device. It can solve the problem of low assembly flexibility of camera modules in existing terminal devices. The technical solution is as follows:

[0005] On the one hand, a terminal device is provided, the terminal device including: a mid-frame, a battery cover and a camera module;

[0006] The middle frame includes: a side plate, and a bottom plate fixedly connected to one side of the side plate;

[0007] The battery cover has a mounting groove, and the battery cover is connected to the other side of the side plate;

[0008] The camera module includes: a camera located on the side of the base plate facing the battery cover, and a lens fixed in the mounting slot, wherein the orthographic projection of the lens on the base plate covers the orthographic projection of the camera on the base plate.

[0009] Optionally, the camera module further includes a lens support frame fixedly connected to the lens, the lens support frame being fixed within the mounting groove.

[0010] Optionally, the terminal device further includes: a bracket located on the side of the battery cover facing the base plate, the bracket having a light entrance hole corresponding to the camera;

[0011] The mounting groove is a through groove, the lens support frame is located in the mounting groove, one side of the lens support frame is bonded to the side of the bracket away from the base plate, and the other side of the lens support frame is fixedly connected to the lens.

[0012] Optionally, the lens support frame has a protruding structure on the side near the base plate, the protruding structure engaging with the mounting groove, and the lens being fixedly connected to the side of the lens support frame away from the base plate.

[0013] Optionally, the edge portion of the lens support frame near the base plate is bonded to the side of the battery cover away from the middle frame;

[0014] And / or, the side of the protruding structure is bonded to the side of the mounting groove.

[0015] Optionally, the side plate has a receiving cavity, the receiving cavity having a first opening and a second opening, the first opening being located on the outer side surface of the side plate, and the second opening being located on the side of the side plate opposite to the bottom plate;

[0016] The terminal device also includes: buttons and card connectors;

[0017] The button is disposed in the receiving cavity through the first opening, and the first end of the button abuts against the inner wall of the receiving cavity;

[0018] The snap-fit ​​element is configured to extend into the receiving cavity from the second opening, snap-fit ​​with the second end of the button, and abut against the inner wall of the receiving cavity.

[0019] Optionally, the second end of the button has a mounting protrusion on its sidewall;

[0020] The snap-fit ​​member has an installation opening, and the snap-fit ​​member is configured to extend from the second opening into the receiving cavity such that the installation opening engages with the installation protrusion.

[0021] Optionally, the side of the mounting protrusion has a snap-fit ​​groove;

[0022] The mounting opening includes a first mounting opening and a second mounting opening that are connected to each other. A first side of the first mounting opening is connected to a second side of the second mounting opening. The length of the first side is less than the length of the second side. The first mounting opening is configured to allow the mounting protrusion to pass through, and the second mounting opening is configured to engage with the mounting protrusion at the snap-fit ​​groove.

[0023] Optionally, the snap-fit ​​member also has a disassembly hole configured to engage with a disassembly tool to remove the snap-fit ​​member from the second opening.

[0024] Optionally, the side plate has a connecting groove and a sliding groove. Two openings in the connecting groove are located on the outer and inner sides of the side plate, respectively. One opening in the sliding groove is located on the side of the side plate opposite to the bottom plate, and the other opening communicates with the connecting groove.

[0025] The terminal device also includes: a card slot, a card tray, and a sliding mechanism;

[0026] The card holder is located within the cavity formed by the middle frame and the battery cover;

[0027] The card tray has a first magnet, the card tray is configured to hold a user identification card, and passes through the connecting slot to be installed in the card holder;

[0028] The sliding mechanism is at least partially located within the sliding groove and is movable along the length of the sliding groove. The sliding mechanism has a second magnet, and at least a portion of the second magnet is located within the connecting groove.

[0029] During the movement of the sliding mechanism in the sliding groove along a specified direction, the repulsive force between the first magnet and the second magnet increases, causing the card holder to pop out of the card holder.

[0030] Optionally, the card tray includes: a frame located within the card holder, and a cover plate fixedly connected to one end of the frame, the cover plate having the first magnet;

[0031] The sliding mechanism includes: a slider at least partially located within the sliding groove, and a force-receiving member fixedly connected to the slider, the slider having the second magnet, the force-receiving member protruding from the outside of the side plate, and the slider being configured to move in the sliding groove when the force-receiving member is subjected to a thrust along the length direction of the sliding groove;

[0032] The side of the cover plate facing the frame contacts the side of the slider that is close to the outer side of the side plate.

[0033] Optionally, after the card tray is located in the card holder, the orthographic projection of the first magnet on the target plane is offset from the orthographic projection of the second magnet on the target plane; after the slider moves in the sliding slot along the specified direction, there is an overlapping area between the orthographic projection of the first magnet on the target plane and the orthographic projection of the second magnet on the target plane, and the card tray pops out from the card holder;

[0034] The target plane is the end face of the cover plate away from the card holder.

[0035] Optionally, the side plate also has a first slot with a third opening located on the outer side surface of the side plate. The force-bearing member is located in the first slot, and the side of the force-bearing member away from the sliding member is coplanar with the outer side surface of the side plate.

[0036] Optionally, the side plate also has a second slot with a fourth opening located on the side of the side plate opposite to the bottom plate, and one opening of the sliding groove is located on the bottom surface of the second slot. The sliding mechanism further includes a limiting member located in the second slot and fixedly connected to the sliding member, the limiting member covering the opening of the sliding groove.

[0037] Optionally, the number of side panels in the middle frame is multiple, and every two adjacent side panels in the middle frame form a corner;

[0038] The terminal device further includes: a plurality of speakers, wherein the plurality of speakers are respectively located at at least two target corners among the plurality of corners;

[0039] Wherein, at least one of the two target ends forming the target corner has a sound channel, and the target end is the end of the side plate near the target corner;

[0040] The speaker channels on the middle frame form at least two sets of stereo channels, each set of stereo channels including a pair of speaker channels located on two opposite side plates of the middle frame.

[0041] Optionally, the plurality of side panels can form a ring-shaped region, and the at least two target corners include at least one set of opposite corners of the mid-frame;

[0042] Within the middle frame, the two target ends that form each target corner have the sound channel.

[0043] Optionally, the terminal device includes four speakers, which are respectively located at the four corners of the mid-frame.

[0044] Optionally, the loudspeaker has a sound-emitting surface that faces the corner where the loudspeaker is located.

[0045] Optionally, the loudspeaker has two sound-emitting surfaces, which are respectively oriented towards two side plates at the corner where the loudspeaker is located.

[0046] Optionally, the terminal device further includes an annular buffer located between the speaker and the strip-shaped side plate, wherein the sound-emitting surface of the speaker is located in the inner ring of the annular buffer.

[0047] Optionally, the sound channel on each of the side panels is a sound channel groove, and the terminal device further includes: a dust cover, the dust cover being located in the sound channel groove, and the end of the dust cover away from the speaker having a dustproof hole.

[0048] Optionally, the end face of the dust cover away from the speaker is flush with the outer side face of the side plate.

[0049] The beneficial effects of the technical solution provided in this application include at least the following: A terminal device includes a mid-frame, a battery cover, and a camera module. Since the lens in the camera module can be fixed in a mounting slot within the battery cover—for example, the lens can be fixed in the mounting slot by a lens support—it is not necessary to fix the lens in the cavity formed by the mid-frame and the battery cover. Therefore, the positional distribution of the lens in the camera module is not limited by other components, resulting in high flexibility in lens assembly. Furthermore, since the area within the lens of the camera module, except for the light-transmitting area, is opaque, the lens can enhance the appearance of the terminal device. Therefore, when the positional distribution of the lens is not limited by other components, the area of ​​the lens can be increased, thereby improving the recognizability and aesthetics of the terminal device. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 This is an exploded view of a camera module in a terminal device provided in an embodiment of this application;

[0052] Figure 2 This is an exploded view of another camera module in the terminal device provided in the embodiments of this application;

[0053] Figure 3 This is a top view of another camera module in the terminal device provided in the embodiments of this application;

[0054] Figure 4 yes Figure 3 Sectional view at point A-A';

[0055] Figure 5 This is a schematic diagram of the structure of a lens support frame provided in an embodiment of this application;

[0056] Figure 6 This is an assembly diagram of a button in a terminal device provided in an embodiment of this application;

[0057] Figure 7 This is an exploded view of a button in a terminal device provided in this application embodiment;

[0058] Figure 8 This is an exploded view of a button and card connector in a terminal device provided in the embodiments of this application;

[0059] Figure 9 This is an assembly diagram of a card tray assembly in a terminal device provided in an embodiment of this application;

[0060] Figure 10 yes Figure 9 An exploded view of the cassette assembly is shown.

[0061] Figure 11 This is a schematic diagram of a card holder provided in an embodiment of this application;

[0062] Figure 12 This is a schematic diagram of the structure of a sliding mechanism provided in an embodiment of this application;

[0063] Figure 13 This is a diagram showing the state of a card tray being ejected and not ejected, provided in an embodiment of this application.

[0064] Figure 14 This is a partial structural diagram of a side panel in a terminal device provided in an embodiment of this application;

[0065] Figure 15 This is a schematic diagram of the installation of a speaker in a terminal device provided in an embodiment of this application;

[0066] Figure 16 yes Figure 15 A cross-sectional view of the speaker is shown;

[0067] Figure 17 This is a schematic diagram of the installation of another type of speaker in the terminal device provided in the embodiments of this application;

[0068] Figure 18 This is a schematic diagram of the installation of another type of speaker in the terminal device provided in the embodiments of this application;

[0069] Figure 19 This is a schematic diagram of the installation of another type of speaker in the terminal device provided in the embodiments of this application;

[0070] Figure 20 yes Figure 19 A sectional view of the provided speaker;

[0071] Figure 21 This is a schematic diagram of the structure of the dust cover in the terminal device provided in the embodiments of this application. Detailed Implementation

[0072] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0073] Please refer to Figure 1 , Figure 1 This is an exploded view of a camera module in a terminal device provided in this application embodiment. The terminal device may include: a mid-frame 100, a battery cover 200, and a camera module 300.

[0074] The middle frame 100 may include a side panel 101 and a bottom plate 102 fixedly connected to one side of the side panel 101. For example, the side panel 101 and the bottom plate 102 in the middle frame 100 are integral structures, that is, the side panel 101 and the bottom plate 102 are integrally formed.

[0075] The battery cover 200 may have a mounting groove 201, and the battery cover 200 is connected to the other side of the side panel 101. For example, the battery cover 200 may be fixedly connected to the other side of the side panel 101 by adhesive bonding. In this way, the terminal device can form a cavity using the mid-frame 100 and the battery cover 200. It should be noted that the terminal device may also typically include a display panel (not shown in the figure), one side of the annular side panel 101 in the terminal device can be adhesively bonded to the display panel, and the other side can be adhesively bonded to the battery cover 200. Thus, a closed cavity can be formed in the terminal device using the display panel, the mid-frame 100, and the battery cover 200.

[0076] The camera module 300 may include a camera 301 and a lens 302. The camera 301 may be located within a cavity formed by the mid-frame 100 and the battery cover 200, while the lens 302 may be located outside this cavity. For example, the lens 302 may be fixed within a mounting slot 201 in the battery cover 200, for instance, by adhesive bonding. Alternatively, the lens 302 may be fixedly connected to the mounting slot 201 via a lens support bracket. It should be noted that this lens support bracket... Figure 1 The image is not shown in the image. For a more detailed description of the lens support frame, please refer to the following: Figure 2 Corresponding implementation examples.

[0077] The camera 301 can be located on the side of the base plate 102 facing the battery cover 200. For example, the side of the base plate 102 facing the battery cover 200 has a camera slot 102a, in which the camera 301 can be fixed to mount the camera 301 on the base plate 102. Here, the orthographic projection of the lens 302 on the base plate 102 covers the orthographic projection of the camera 301 on the base plate 102.

[0078] It should be noted that the lens 302 has a light-transmitting area 302a. After the camera 301 in the terminal device is mounted on the base plate 102 of the mid-frame 100, and the lens 302 is fixed in the mounting slot 201 in the battery cover 200, it is necessary not only to ensure that the orthographic projection of the lens 302 on the base plate 102 of the mid-frame 100 covers the orthographic projection of the camera 301 on the base plate 102, but also to ensure that the light-transmitting area 302a of the lens 302 covers the light-receiving surface of the camera 301. In this way, external light can pass through the light-transmitting area 302a in the lens 302 and enter the camera 301, enabling the camera 301 to work normally.

[0079] In this embodiment, since the lens 302 in the camera module 300 can be fixed to the battery cover 200 via the mounting slot 201 in the battery cover 200, it is not necessary to install the lens 302 in the cavity formed by the mid-frame 100 and the battery cover 200. Therefore, the positional distribution of the lens 302 in the camera module 300 is not restricted by other components, resulting in high assembly flexibility for the lens 302 in the camera module 300. Furthermore, since the area within the lens 302 of the camera module 300, except for the light-transmitting area 302a, is opaque, the lens 302 can enhance the appearance of the terminal device. Therefore, when the positional distribution of the lens 302 is not restricted by other components, the area of ​​the lens 302 can be increased, thereby improving the recognizability and aesthetics of the terminal device.

[0080] In summary, the terminal device provided in this application includes a mid-frame, a battery cover, and a camera module. Since the lens in the camera module can be fixed within a mounting slot in the battery cover—for example, the lens can be fixed in the mounting slot using a lens support—it is not necessary to fix the lens within the cavity formed by the mid-frame and the battery cover. Therefore, the positional distribution of the lens in the camera module is not limited by other components, resulting in high flexibility in lens assembly. Furthermore, since the area within the lens of the camera module, except for the light-transmitting area, is opaque, the lens can enhance the appearance of the terminal device. Therefore, when the positional distribution of the lens is not limited by other components, the lens area can be increased, thereby improving the recognizability and aesthetics of the terminal device.

[0081] Please refer to Figure 2 , Figure 2This is an exploded view of another camera module in a terminal device provided in this application embodiment. The camera module 300 in the terminal device may further include a lens support frame 303 fixedly connected to the lens 302, the lens support frame 303 being fixed within the mounting groove 201. In this case, both the lens 302 and the lens support frame 303 are located outside the cavity formed by the middle frame 100 and the battery cover 200. Therefore, the positional distribution of the lens support frame 303 is not restricted by other components, resulting in higher assembly flexibility for the lens support frame 303.

[0082] Regarding the connection between the lens support frame 303 and the mounting slot 201 in the battery cover 200, this application embodiment will illustrate the connection using the following three optional implementation methods as examples:

[0083] In the first optional implementation, such as Figure 3 and Figure 4 As shown, Figure 3 This is a top view of another camera module in the terminal device provided in this application embodiment. Figure 4 yes Figure 3 A cross-sectional view at point A-A'. The terminal device may also include a bracket 400 located on the side of the battery cover 200 facing the base plate 102 in the middle frame 100. One side of the bracket 400 can contact the battery cover 200, and the other side can be fixedly connected to the base plate 102. For example, the base plate 102 is provided with a support post 1021, and the support post 1021 has an internally threaded hole. The bracket 400 may have a through hole 400a communicating with the internally threaded hole. Thus, a screw can be threaded through the through hole 400a and connected to the support post 1021 with the internally threaded hole, allowing the bracket 400 to be mounted on the base plate 102.

[0084] like Figure 4 and Figure 5 As shown, Figure 5 This is a schematic diagram of a lens support frame provided in an embodiment of this application. The mounting groove 201 is a through groove. The lens support frame 303 may have a protruding structure 3031 on the side near the base plate 102. The side of the protruding structure 3031 near the bracket 400 is bonded to the side of the bracket 400 away from the base plate 102. For example, the protruding structure 3031 of the lens support frame 303 may be located in the mounting groove 201, and the side of the protruding structure 3031 near the bracket 400 and the side of the bracket 400 away from the base plate 102 may be bonded together by adhesive 304a, so that the lens support frame 303 can be fixed in the mounting groove 201.

[0085] In a second alternative implementation, a protruding structure 3031 on the side of the lens support 303 near the base plate 102 can engage with the mounting groove 201, and the lens 302 is fixedly connected to the side of the lens support 303 away from the base plate 102. For example, the protruding structure 3031 can engage with the mounting groove 201 in the battery cover 200 via an interference fit to fix the lens support 303 in the mounting groove 201.

[0086] In a third alternative implementation, the protrusion mechanism 3031 in the lens support 303 can be engaged with the mounting groove 201, and the side of the protrusion structure 3031 near the bracket 400 is bonded to the side of the bracket 400 away from the base plate 102.

[0087] Combining the three optional implementation methods described above, the connection between lens 302 and lens support frame 303 is as follows: Figure 4 As shown, the lens support 303 has a groove structure 3032 on the side away from the base plate 102 in the middle frame 100, and the shape of the groove structure 3032 is the same as the shape of the lens 302. In this way, the lens 302 can be fixed within the groove structure 3032 of the lens support 303. For example, the lens 302 can be bonded to the bottom surface of the groove structure 3032 using adhesive 304b to fix the lens 302 within the groove structure 3032.

[0088] It should be noted that the bracket 400 has a light entrance hole 401 corresponding to the camera 301. Furthermore, the lens support 303 also has a light entrance hole 303a corresponding to the camera 301. Thus, after the lens support 303 is fixed in the mounting groove 201, and the lens 302 is fixed in the groove structure 3032 within the lens support 303, the outer boundary of the light-transmitting area 302a of the lens 302 coincides with the outer boundary of the light entrance hole 303a of the lens support 303, and the outer boundary of the light entrance hole 303a of the lens support 303 coincides with the outer boundary of the light entrance hole 401 of the bracket 400. This ensures that ambient light sequentially passes through the light-transmitting area 302a of the lens 302, the light entrance hole 303a of the lens support 303, and the light entrance hole 401 of the bracket 400 before entering the camera 301, enabling the camera 301 to function normally.

[0089] In this embodiment, the edge portion of the lens support 303 near the base plate 102 is bonded to the side of the battery cover 200 away from the middle frame 100, and / or, the side of the protruding structure 3031 is bonded to the side of the mounting groove 201. For example, the edge portion of the lens support 303 near the base plate 102 can be bonded to the side of the battery cover 200 away from the middle frame 100 using adhesive dispensing. Alternatively, the side of the protruding structure 3031 can be bonded to the side of the mounting groove 201. Alternatively, the edge portion of the lens support 303 near the base plate 102 can be bonded to the side of the battery cover 200 away from the middle frame 100 using adhesive dispensing, and the side of the protruding structure 3031 can be bonded to the side of the mounting groove 201. This effectively improves the stability of the lens support 303 and ensures the concentricity of the camera 301 and the lens light-transmitting area 302a.

[0090] Please refer to Figure 6 and Figure 7 , Figure 6 This is an assembly diagram of a button in a terminal device provided in an embodiment of this application. Figure 7 This is an exploded view of a button in a terminal device provided in this application embodiment. The side panel 101 in the middle frame 100 has a receiving cavity (not shown in the figure), which may have a first opening 101a and a second opening 101b. The first opening 101a may be located on the outer surface of the side panel 101, and the second opening 101b may be located on the surface of the side panel 101 opposite to the bottom plate 102. That is, the surface containing the first opening 101a intersects the surface containing the second opening 101b; for example, the surface containing the first opening 101a is perpendicular to the surface containing the second opening 101b.

[0091] In this embodiment, the terminal device may further include a button 500 and a snap-fit ​​connector 600. The button 500 is disposed within a receiving cavity on the side plate 101 through a first opening 101a, and a first end of the button 500 abuts against the inner wall of the receiving cavity. For example, the first end of the button 500 has a pressure plate b11. When the button 500 is installed into the receiving cavity on the side plate 101, the side of the pressure plate b11 near the side plate 101 abuts against the inner wall of the receiving cavity, so that the first end of the button 500 will not fall out of the receiving cavity after the button 500 is installed into the receiving cavity.

[0092] The snap-fit ​​member 600 can be configured to extend into the receiving cavity from the second opening 101b of the receiving cavity, snap-fit ​​with the second end of the button 500, and abut against the inner wall of the receiving cavity. In this way, after the button 500 is installed in the receiving cavity, it can be ensured that the second end of the button 500 will not fall out of the receiving cavity.

[0093] In related technologies, the receiving cavity of the side panel in the terminal device, in addition to having a first opening and a second opening, also requires an additional slot in the middle frame. After the button is assembled into the receiving cavity, a tab can be inserted into the slot to prevent the button from falling out of the receiving cavity. However, the slot on the side panel reduces the structural strength of the side panel. In addition, when it is necessary to remove the button from the receiving cavity, the pressure plate needs to be pulled out of the slot. Since the thickness of the pressure plate is usually small, it is very easy to break during the process of pulling out the pressure plate.

[0094] In this embodiment, there is no need to create an additional slot on the side plate 101. The snap-fit ​​member 600 can simply enter the receiving cavity through the second opening 101b and snap into the second end of the button 500, ensuring high structural strength of the side plate 101. Furthermore, since the snap-fit ​​member 600 needs to snap into the second end of the button 500, to ensure a tight connection, the snap-fit ​​member 600 needs to be relatively thick. This prevents breakage during removal of the snap-fit ​​member 600 from the second end of the button 500.

[0095] Optional, such as Figure 7 As shown, the sidewall of the second end of the button 500 may have a mounting protrusion 501, and the snap-fit ​​member 600 may have a mounting opening 601. The snap-fit ​​member 600 is configured to extend into the receiving cavity from the second opening 101b, such that the mounting opening 601 engages with the mounting protrusion 501. In this application, at least one of the snap-fit ​​member 600 and the mounting protrusion 501 may be made of an elastic material. For example, at least one of the snap-fit ​​member 600 and the mounting protrusion 501 may be made of rubber. This facilitates the snap-fit ​​of the snap-fit ​​member 600 with the mounting protrusion 501 after installation.

[0096] In this embodiment, the shape of the mounting opening 601 in the snap-fit ​​member 600 and the cross-sectional shape of the mounting protrusion 501 in the button 500 can be the same; both can be any shape other than a circle. For example, when the mounting opening 601 is square, the cross-sectional shape of the mounting protrusion 501 in the button 500 is also square. This prevents the snap-fit ​​member 600 from rotating on the mounting protrusion 501 after snap-fitting, thus ensuring the contact between the snap-fit ​​member 600 and the inner wall of the receiving cavity, preventing the second end of the button 500 from falling out of the receiving cavity.

[0097] For example, please refer to Figure 8 , Figure 8This is an exploded view of a button and a snap-fit ​​connector in a terminal device provided in this application embodiment. The side of the mounting protrusion 501 may have a snap-fit ​​groove 5011, and the mounting opening 601 may include a first mounting opening 6011 and a second mounting opening 6012 that are connected. A first side of the first mounting opening 6011 communicates with a second side of the second mounting opening 6012, and the length of the first side is less than the length of the second side. The first mounting opening 6011 is configured to allow the mounting protrusion 501 to pass through, and the second mounting opening 6012 is configured to snap into the snap-fit ​​groove 5011 where the mounting protrusion 501 is engaged.

[0098] For example, when the mounting opening 601 in the snap-fit ​​member 600 is square, the shapes of the first mounting opening 6011 and the second mounting opening 6012 are both square. The snap-fit ​​groove 5011 in the mounting protrusion 501 can be a rectangular annular groove. In this way, after the snap-fit ​​member 600 is snapped into the mounting protrusion 501, at least a portion of the snap-fit ​​member 600 (the portion at the edge of the second mounting opening 6012) is located within the snap-fit ​​groove 5011 in the mounting protrusion 501, ensuring high stability of the snap-fit ​​between the snap-fit ​​member 600 and the mounting protrusion 501.

[0099] In this embodiment, the snap-fit ​​600 may also have a removal hole 602, which is configured to cooperate with a removal tool to remove the snap-fit ​​600 from the second opening 101b. Thus, by using the removal hole 602 in conjunction with the removal tool, it is convenient to remove the snap-fit ​​600 from the mounting protrusion 501. For example, when it is necessary to remove the button 500 from the receiving cavity, tweezers or other removal tools can be used to grip the snap-fit ​​600 through the removal hole 602 and remove it from the second opening 101b, thereby removing the button 500.

[0100] Optional, such as Figure 7 As shown, the side wall of the button 500 also has a protrusion 502. The terminal device may further include an electronic switch a11 located inside the receiving cavity, the electronic switch a11 being connectable to the inner wall of the receiving cavity, and the electronic switch a11 having a contact a12. After the button 500 is located in the receiving cavity, the protrusion 502 of the button 500 can contact the contact a12 of the electronic switch a11. In this case, when the button 500 is pressed, the button 500 can move towards the electronic switch a11, thereby causing the contact a12 in the electronic switch a11 to be pressed by the protrusion 502 of the button 500. After the contact a12 in the electronic switch a11 is pressed, the electronic switch a11 can send a command to the controller in the terminal device to realize the control function of the button 500.

[0101] For example, the electronic switch a11 can be a switch for adjusting the volume in a terminal device. When the button 500 is installed in the receiving cavity, pressing the button 500 causes the protrusion 502 on the button 500 to press the contact on the electronic switch a11 to achieve volume control.

[0102] In the embodiments of this application, please refer to Figure 9 and Figure 10 , Figure 9 This is an assembly diagram of a card tray assembly in a terminal device provided in an embodiment of this application. Figure 10 yes Figure 9 An exploded view of the card tray assembly is shown. The side plate 101 in the middle frame 100 may have a connecting groove 101c and a sliding groove 101d. The connecting groove 101c may have two openings, located on the outer and inner sides of the side plate respectively, allowing it to communicate with the cavity formed by the middle frame 100 and the battery cover 200. The sliding groove 101d may also have two openings, one located on the side of the side plate 101 opposite to the bottom plate 102, and the other communicating with the connecting groove 101c. The terminal device may further include a card holder 700, a card tray 800, and a sliding mechanism 900.

[0103] The card holder 700 can be located in the cavity formed by the middle frame 100 and the battery cover 200.

[0104] Card tray 800 may have a first magnet 801. Card tray 800 is configured to hold a subscriber identification card and pass through a connection slot 101c to be installed within card holder 700. For example, the subscriber identification card may be a SIM (Subscriber Identity Module) card. After the card tray 800 with the subscriber identification card is installed within card holder 700, the subscriber identification card can be electrically connected to a terminal device through card holder 700.

[0105] The sliding mechanism 900 may be located at least partially within the sliding groove 101d and is movable along the length of the sliding groove 101d. The sliding mechanism 900 may have a second magnet 901, and at least a portion of the second magnet 901 may be located within the connecting groove 101c.

[0106] During the process of the sliding mechanism 900 moving in the sliding groove 101d in the specified direction, the repulsive force between the first magnet 801 and the second magnet 901 increases, causing the card holder 800 to pop out of the card holder.

[0107] For example, when it is necessary to eject the card tray 800 from the card holder 700, the sliding mechanism 900 can be pushed to move along a specified direction, namely the length direction of the sliding through groove 101d, so that the second magnet 901 in the sliding mechanism 900 approaches the first magnet 801 on the card tray 800, thereby increasing the repulsive force between the first magnet 801 and the second magnet 901, so that the card tray 800 can be ejected from the card holder 700.

[0108] In related technologies, the terminal device includes: a card holder, a card tray, a card pin, a card pin hole, and a linkage mechanism. A side plate in the middle frame has a connecting slot communicating with a cavity formed by the middle frame and the battery cover. The card holder is located within this cavity. The card tray is configured to hold a user identification card and passes through the connecting slot to be installed within the card holder. The linkage mechanism is connected to the card holder. The card pin hole is located on the side plate, communicating with the cavity formed by the middle frame and the battery cover. The pin hole is configured to allow the card pin to enter the cavity from the outside of the middle frame and to push the linkage mechanism. When it is necessary to eject the card tray from the card holder, the card pin can pass through the card pin hole and push the linkage mechanism, which can then eject the card tray from the card holder. However, the card pin is inconvenient to carry, and the card pin hole is easily clogged by external impurities, preventing the card pin from passing through and thus preventing the user from replacing their user identification card.

[0109] In this embodiment, there is no need to open a SIM card pin hole on the side plate 101, and no SIM card pin is required. The sliding mechanism 900 moves in a specified direction within the sliding communication groove 101d, increasing the repulsive force between the second magnet 901 in the sliding mechanism 900 and the first magnet 801 on the card tray 800. This allows the card tray 800 to be ejected from the card holder 700. This makes it more convenient for users to replace their user identification cards.

[0110] Optional, such as Figure 11 As shown, Figure 11 This is a schematic diagram of a card tray according to an embodiment of this application. The card tray 800 may include: a frame 802 located within a card holder 700, and a cover plate 803 fixedly connected to one end of the frame 802, the cover plate 803 having a first magnet 801. For example, multiple grooves may be provided on the cover plate 803, and one first magnet 801 may be installed in each groove. For example, four grooves may be provided on the cover plate 803, and one first magnet 801 may be provided in each groove, the distance between each groove may be equal.

[0111] like Figure 12 As shown, Figure 12This is a schematic diagram of a sliding mechanism provided in an embodiment of this application. The sliding mechanism 900 may include: a sliding member 902 at least partially located within a sliding groove 101d, and a force-receiving member 903 fixedly connected to the sliding member. The sliding member 902 may have a second magnet 901. For example, multiple grooves may be provided on the sliding member 902, and one second magnet 901 may be installed in each groove. For instance, four grooves may be provided on the sliding member 902, and one second magnet 901 may be provided in each groove. The distance between each groove may be equal.

[0112] The force-bearing member 903 protrudes from the outside of the side plate 101, and the sliding member 902 is configured to move in the sliding groove 101d when the force-bearing member 903 is subjected to induction along the length direction of the sliding groove 101d. The side of the cover plate 803 facing the frame 802 contacts the side of the sliding member 902 near the outer side of the side plate 101.

[0113] For example, the side of the force-bearing member 903 that protrudes from the outside of the side plate 101 can be a rough surface, which makes it easier to push the force-bearing member 903 so that it moves along the length direction of the sliding groove 101d, thereby increasing the repulsive force between the second magnet 901 on the slider 902 and the first magnet 801 on the cover plate 803, which can pop the card holder 800 out of the card seat 700.

[0114] In the embodiments of this application, such as Figure 13 As shown, Figure 13 This is a diagram illustrating the ejected and non-ejected states of a card tray according to an embodiment of this application. The card tray 800 exists in two states. In one state, the card tray 800 is located within the card holder 700, i.e., in the non-ejected state. After the card tray 800 is located in the card holder 700, the orthographic projections of the first magnet 801 and the second magnet 901 on the target plane are misaligned, resulting in a small repulsive force between the first magnet 801 and the second magnet 901, preventing the card tray 800 from ejecting from the card holder 700. In the other state, the card tray 800 ejects from the card holder 700. After the slider 902 moves along a specified direction in the sliding groove 101d, the orthographic projections of the first magnet 801 and the second magnet 901 on the target plane may overlap, allowing the card tray 800 to eject from the card holder 700. It should be noted that the target plane is the end face of the cover plate 803 away from the card holder 700.

[0115] Optional, such as Figure 14 As shown, Figure 14This is a partial structural diagram of a side panel in a terminal device provided in this application embodiment. The side panel 101 in the middle frame 100 may also have a first slot 101e, which may have a third opening located on the outer surface of the side panel 101. A force-bearing member 903 may be located within the first slot 101e, and the side of the force-bearing member 903 away from the sliding member 902 is coplanar with the outer surface of the side panel 101. This facilitates the application of force to the force-bearing member 903, causing it to drive the sliding member 902 to move along the length of the sliding groove 101d. It should be noted that the outer surface of the side panel 101 here refers to the side of the side panel 101 away from the card holder 700 and parallel to the end face of the cover plate 803 away from the card holder 700.

[0116] In this embodiment, the side plate 101 in the middle frame 100 may also have a second slot 101f, which may have a fourth opening. The fourth opening may be located on the side of the side plate 101 opposite to the bottom plate 102, and one opening in the sliding groove 101d is located on the bottom surface of the second slot 101f. The sliding mechanism 900 may also include a limiting member 904 located in the second slot 101f and fixedly connected to the slider 902, which covers the opening of the sliding groove 101d. The limiting member 904 can prevent the slider 902 from falling out of the sliding groove 101d during its sliding motion.

[0117] Optionally, the terminal device may further include a strip-shaped limiting plate c11. The strip-shaped limiting plate c11 is located within the second slot 101f and on the side of the limiting member 904 away from the sliding through slot 101d. Both ends of the strip-shaped limiting plate c11 are fixedly connected to the side plates 101 of the middle frame 100. For example, both ends of the strip-shaped limiting plate c11 can be fixedly connected to the side plates 101 of the middle frame 100 by means of screws.

[0118] For example, the side of the strip-shaped limiting plate c11 away from the sliding mechanism 900 is flush with the surface where the fourth opening is located, and both ends of the strip-shaped limiting plate c11 are fixedly connected to the area at the bottom of the second slot 101f, excluding the opening of the sliding through groove 101d. Thus, by setting the limiting member 904 and the strip-shaped limiting plate c11 in the second slot 101d, the sliding member 902 can move in a specified direction, ensuring that the sliding member 902 will not fall out of the sliding through groove 101d.

[0119] In the embodiments of this application, please refer to Figure 15 and Figure 16 , Figure 15 This is a schematic diagram of the installation of a speaker in a terminal device provided in an embodiment of this application. Figure 16 yes Figure 15The diagram shows a cross-sectional view of the speaker. The middle frame 100 has multiple side panels 101, and each pair of adjacent side panels 101 can form a corner 1011. For example, the multiple side panels 101 can form a ring-shaped area. For instance, if there are four side panels 101, the ring-shaped area formed by these four side panels 101 is rectangular, thus the middle frame 100 has four corners 1011.

[0120] The terminal device may further include a plurality of speakers 1000, each speaker 1000 being located at at least two target corners of a plurality of corners 1011. For example, the terminal device may also include a speaker bracket a11. The speakers 1000 are mounted in the speaker bracket a11, and the speaker bracket a11 can be fixed to the base plate 102 in the middle frame 100 by screws, thereby enabling the speakers 1000 to be mounted into the terminal device.

[0121] At least one of the two target ends forming the target corner has a sound channel 101g. This target end is the end of the side plate 101 closest to the target corner. That is, either one of the two target ends forming the target corner has a sound channel 101g, or both target ends forming the target corner have a sound channel 101g.

[0122] In this embodiment of the application, the speaker channels 101g on the middle frame 100 form at least two sets of stereo channels, and each set of stereo channels may include a pair of speaker channels 101g located on two opposite side plates 101 in the middle frame 100.

[0123] In this application, there are multiple ways to form at least two stereo channels. The embodiments of this application illustrate the following three possible ways:

[0124] The first possible approach is as follows: Figure 15 As shown, there are at least two target corners, which are a pair of opposite corners of the middle frame 100. The terminal device includes two speakers 1000, and each of the two target ends surrounding each target corner has a sound channel. Thus, the sound emitted by each speaker 1000 can be transmitted through two sound channels. For example, the sound emitted by one speaker 1000 is transmitted through sound channel b3 and sound channel a3; the sound emitted by the other speaker 1000 is transmitted through sound channel a2 and sound channel b2. In this case, the sound channels on the middle frame 100 can form two sets of stereo channels; that is, sound channel b3 and sound channel a2 can form one set of stereo channels, and sound channel a3 and sound channel b2 can form another set of stereo channels.

[0125] The second possible approach is as follows: Figure 17 As shown, Figure 17 This is a schematic diagram of the installation of another type of speaker in a terminal device provided in this application embodiment. There are at least three target corners, which may include a set of opposite corners of the middle frame 100. The terminal device includes three speakers 1000, and at least one of the two target ends forming the target corner has a sound channel. For example, the three speakers 1000 are speaker A1, speaker A2, and speaker A3. Both target ends forming the target corner where speaker A1 is located have a sound channel, while only one of the two target ends forming the target corners where speakers A2 and A3 are located has a sound channel. Thus, the sound emitted by speaker A1 can be transmitted through two sound channels, and the sound emitted by speakers A2 and A3 can be transmitted through one sound channel. For example, the sound emitted by speaker A1 is transmitted through sound channels a1 and b1; the sound emitted by speaker A2 is transmitted through sound channel a2; and the sound emitted by speaker A3 is transmitted through sound channel a3. In this case, the speaker channels on the middle frame 100 can form two sets of stereo channels. That is, speaker channels a1 and a2 can form one set of stereo channels, and speaker channels b1 and a3 can form one set of stereo channels.

[0126] The third possible approach is as follows: Figure 18 As shown, Figure 18 This is a schematic diagram of the installation of another type of speaker in a terminal device provided in this application embodiment. There are at least four target corners, including two sets of opposite corners of the middle frame 100. The terminal device may include four speakers 1000. That is, the four speakers 1000 are respectively located at the four corners 1011 of the middle frame 100. Each target corner has a sound channel at both ends. For example, the four speakers 1000 are speaker A1, speaker A2, speaker A3, and speaker A4, and the sound emitted by speaker A1, speaker A2, speaker A3, and speaker A4 can be transmitted through two sound channels. For example, the sound emitted by speaker A1 is transmitted through sound channel a1 and sound channel b1; the sound emitted by speaker A2 is transmitted through sound channel a2 and sound channel b2; the sound emitted by speaker A3 is transmitted through sound channel a3 and sound channel b3; and the sound emitted by speaker A4 is transmitted through sound channels a4 and b4. In this configuration, the speaker channels on the middle frame 100 can form four stereo channels. Specifically, speaker channels a1 and a2 can form one stereo channel, speaker channels b3 and b4 can form one stereo channel, speaker channels b1 and a3 can form one stereo channel, and speaker channels a4 and b2 can form one stereo channel.

[0127] Combining the three possible implementation methods described above, it is clear that in order for the speaker channels 101g on the middle frame 100 to form at least two stereo channels, it is necessary to ensure that at least two target corners include at least one set of diagonals of the middle frame 100. In this embodiment, when the terminal device has at least two stereo channels, the stereo sound emitted by the terminal device is more pronounced whether the terminal device is placed horizontally or vertically, effectively improving the stereo sound effect emitted by the terminal device. Furthermore, when a user holds the terminal device, they may only block one speaker channel in the stereo channel, while the other stereo channels can still emit stereo sound, further improving the stereo sound effect emitted by the terminal device.

[0128] Regarding the number of sound-emitting surfaces 1001 in the loudspeaker 1000, this application embodiment will illustrate the following two optional implementation methods as examples:

[0129] In the first feasible method, such as Figure 16 As shown, the speaker 1000 in the terminal device may have a sound-emitting surface 1001 facing the corner where the speaker 1000 is located. For example, the angle α between the sound-emitting surface 1001 of the speaker 1000 and each side plate 101 surrounding the corner where the speaker 1000 is located is 45 degrees. This allows the sound emitted from the sound-emitting surface 1001 to be evenly emitted from the sound channel 101g on the side plate 101 at the corner, thereby effectively improving the sound effect of the speaker 1000.

[0130] In the second possible implementation, such as Figure 19 As shown, Figure 19 This is a schematic diagram illustrating the installation of another type of speaker in a terminal device provided in this application embodiment. The speaker 1000 in the terminal device may have two sound-emitting surfaces 1001, each facing one of the two side panels 101 at the corner where the speaker 1000 is located. For example, each of the two sound-emitting surfaces 1001 is parallel to the corresponding side panel 101. This allows the sound emitted by the speaker 1000 to be emitted from two sound channels 101g through the two sound-emitting surfaces 1001, thereby effectively improving the sound effect of the speaker 1000. Furthermore, when the speaker 1000 forms a stereo channel, it can effectively improve the stereo sound effect.

[0131] Regarding the structure of the speaker channel, this application will illustrate the following two possible implementation methods.

[0132] In the first feasible method, such as Figure 16As shown, each side panel 101 may include at least one speaker hole in its sound channel 101g. For example, sound emitted by the speaker 1000 can be emitted through at least one speaker hole on the side panel 101. In this embodiment, the terminal device may further include a sealing mesh d11. The sealing mesh d11 covers the opening of the sound channel 101g facing the middle frame 100. This effectively prevents external dust and other impurities from entering the speaker 1000.

[0133] In the second possible implementation, such as Figure 19 and Figure 20 As shown, Figure 20 yes Figure 19 A cross-sectional view of the provided loudspeaker. The sound channel 101g on each side panel 101 can be a sound channel. The terminal device may also include a dust cover 1200 located in the sound channel, the end of the dust cover 1200 remote from the loudspeaker 1000 possibly having a dust hole 1201. For example, Figure 21 This is a schematic diagram of the structure of the dust cover in the terminal device provided in this application embodiment. The dust hole 1201 can be a nanopore, that is, the dust hole 1201 can be a hole with a diameter on the nanometer scale. In this way, the dust cover 1200 can effectively prevent external dust or water droplets from entering the speaker 1000, and can also prevent sharp objects such as pins from being accidentally inserted into the dust hole 1201 and damaging other dustproof structures inside the middle frame 100.

[0134] Optionally, the end of the dust cover 1200 furthest from the speaker 1000 can be flush with the outer surface of the side panel 101. In this way, the appearance of the dust cover 1200 can be seen as an integral part of the mid-frame 100, improving the aesthetics of the terminal device.

[0135] In this embodiment, the terminal device may further include an annular buffer 1100 located between the speaker 1000 and the side panel 101, wherein the sound-emitting surface 1001 of the speaker 1000 may be located in the inner ring of the annular buffer 1100. For example, the annular buffer 1100 may be an elastic annular foam. In this way, the vibration generated by the speaker 1000 during operation can be effectively absorbed by the annular buffer 1100, thereby reducing the overall vibration of the terminal device and improving the user experience.

[0136] In summary, the terminal device provided in this application includes a mid-frame, a battery cover, and a camera module. Since the lens in the camera module can be fixed within a mounting slot in the battery cover—for example, the lens can be fixed in the mounting slot using a lens support—it is not necessary to fix the lens within the cavity formed by the mid-frame and the battery cover. Therefore, the positional distribution of the lens in the camera module is not limited by other components, resulting in high flexibility in lens assembly. Furthermore, since the area within the lens of the camera module, except for the light-transmitting area, is opaque, the lens can enhance the appearance of the terminal device. Therefore, when the positional distribution of the lens is not limited by other components, the lens area can be increased, thereby improving the recognizability and aesthetics of the terminal device.

[0137] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0138] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A terminal device, characterized in that, include: Mid-frame (100), battery cover (200), camera module (300), button (500), card connector (600), card holder (700), card tray (800), sliding mechanism (900) and strip limit plate (c11); The mid-frame (100) includes: a side plate (101) and a bottom plate (102) fixedly connected to one side of the side plate (101). The battery cover (200) has a mounting groove (201) and is connected to the other side of the side plate (101). The camera module (300) includes: a camera (301) located on the side of the bottom plate (102) facing the battery cover (200) and a lens (302) fixed in the mounting groove (201). The orthographic projection of the lens (302) on the bottom plate (102) covers the orthographic projection of the camera (301) on the bottom plate (102). The card holder (700) is located in the cavity formed by the middle frame (100) and the battery cover (200). The side plate (101) has a connecting slot (101c). Two openings in the connecting slot (101c) are located on the outer and inner sides of the side plate (101), respectively. The card tray (800) is configured to assemble a user identification card and passes through the connecting slot (101c) to be installed in the card holder (700). The card tray (800) includes: a frame (802) located in the card holder (700) and a cover plate (803) fixedly connected to one end of the frame (802). The cover plate (803) has a first magnet (801). The side plate (101) also has a connected sliding groove (101d), a first slot (101e), and a second slot (101f). One opening of the sliding groove (101d) is located on the side of the side plate (101) opposite to the bottom plate (102), and the other opening is connected to the connecting groove (101c). The third opening of the first slot (101e) is located on the outer side of the side plate (101). The second slot (101f) has a fourth opening, which is located on the side of the side plate (101) opposite to the bottom plate (102). One opening of the sliding groove (101d) is located on the bottom surface of the second slot (101f). The sliding mechanism (900) includes: a sliding member (902) at least partially located within the sliding groove (101d), a force-receiving member (903) fixedly connected to the sliding member (902), and a limiting member (904). The sliding member (902) has a second magnet (901), at least a portion of which is located within the connecting groove (101c). The force-receiving member (903) protrudes from the outside of the side plate (101), is located in the first slot (101e), and the side of the force-receiving member (903) away from the sliding member (902) is coplanar with the outer surface of the side plate (101). The slider (902) is configured to move in the sliding groove (101d) when the force-bearing member (903) is subjected to a thrust along the length direction of the sliding groove (101d), wherein the side of the cover plate (803) facing the frame (802) contacts the side of the slider (902) near the outer side of the side plate (101), the limiting member (904) is located in the second slot (101f) and covers the opening of the sliding groove (101d), and the strip limiting plate (c11) is fixed in the second slot (101f) and is located on the side of the limiting member (904) away from the sliding groove (101d); After the card tray (800) is located within the card holder (700), the orthographic projection of the first magnet (801) on the target plane is offset from the orthographic projection of the second magnet (901) on the target plane; after the sliding mechanism (900) moves in the sliding through groove (101d) along the specified direction, there is an overlapping area between the orthographic projection of the first magnet (801) on the target plane and the orthographic projection of the second magnet (901) on the target plane, which increases the repulsive force between the first magnet (801) and the second magnet (901), wherein the target plane is the end face of the card tray (800) away from the card holder (700); The side plate (101) has a receiving cavity with a first opening (101a) and a second opening (101b). The first opening (101a) is located on the outer side of the side plate (101), and the second opening (101b) is located on the side of the side plate (101) opposite to the bottom plate (102). The button (500) is disposed in the receiving cavity through the first opening (101a). The first end of the button (500) has a pressure plate (b11). When the button (500) is installed in the receiving cavity, the side of the pressure plate (b11) near the side plate (101) abuts against the inner wall of the receiving cavity. The snap-fit ​​member (600) is configured to extend into the receiving cavity from the second opening (101b), snap-fit ​​against the second end of the button (500), and abut against the inner wall of the receiving cavity.

2. The terminal device according to claim 1, characterized in that, The camera module (300) further includes a lens support frame (303) fixedly connected to the lens (302), and the lens support frame (303) is fixed in the mounting groove (201).

3. The terminal device according to claim 2, characterized in that, The terminal device further includes: a bracket (400) located on the side of the battery cover (200) facing the base plate (102), the bracket (400) having a light inlet hole (401) corresponding to the camera (301); The mounting groove (201) is a through groove, the lens support frame (303) is located in the mounting groove (201), one side of the lens support frame (303) is bonded to the side of the bracket (400) away from the base plate (102), and the other side of the lens support frame (303) is fixedly connected to the lens (302).

4. The terminal device according to claim 2, characterized in that, The lens support frame (303) has a protruding structure (3031) on the side near the base plate (102), the protruding structure (3031) is engaged with the mounting groove (201), and the lens (302) is fixedly connected to the side of the lens support frame (303) away from the base plate (102).

5. The terminal device according to claim 4, characterized in that, The edge portion of the lens support frame (303) near the base plate (102) is bonded to the side of the battery cover (200) away from the middle frame (100); And / or, the side of the protrusion structure (3031) is bonded to the side of the mounting groove (201).

6. The terminal device according to claim 5, characterized in that, The second end of the button (500) has a mounting protrusion (501) on its side wall. The snap-fit ​​member (600) has a mounting opening (601) and is configured to extend into the receiving cavity from the second opening (101b) such that the mounting opening (601) engages with the mounting protrusion (501).

7. The terminal device according to claim 6, characterized in that, The side of the mounting protrusion (501) has a snap-fit ​​groove (5011). The mounting opening (601) includes a first mounting opening (6011) and a second mounting opening (6012) that are connected. A first side of the first mounting opening (6011) is connected to a second side of the second mounting opening (6012). The length of the first side is less than the length of the second side. The first mounting opening (6011) is configured to allow the mounting protrusion (501) to pass through. The second mounting opening (6012) is configured to engage with the mounting protrusion (501) at the snap-fit ​​groove (5011).

8. The terminal device according to claim 6, characterized in that, The snap-fit ​​(600) also has a disassembly hole (602) configured to cooperate with a disassembly tool to remove the snap-fit ​​(600) from the second opening (101b).

9. The terminal device according to any one of claims 1 to 5, characterized in that, The number of side panels (101) in the middle frame (100) is multiple, and every two adjacent side panels (101) in the middle frame (100) form a corner (1011). The terminal device further includes: a plurality of speakers (1000), the plurality of speakers (1000) being located at at least two target corners of the plurality of corners (1011); Wherein, at least one of the two target ends forming the target corner has a sound channel (101g), and the target end is the end of the side plate (101) near the target corner; The speaker channels (101g) on ​​the middle frame (100) form at least two sets of stereo channels, each set of stereo channels including a pair of speaker channels (101g) located on two opposite side plates (101) of the middle frame (100).

10. The terminal device according to claim 9, characterized in that, The plurality of said side panels (101) can form an annular region, and the at least two target corners include at least one set of opposite corners of the middle frame (100); In the middle frame (100), the two target ends that form each of the target corners each have the sound channel (101g).

11. The terminal device according to claim 10, characterized in that, The terminal device includes four speakers (1000), which are located at the four corners (1011) of the middle frame (100).

12. The terminal device according to claim 10, characterized in that, The loudspeaker (1000) has a sound-emitting surface (1001) facing the corner (1011) where the loudspeaker (1000) is located.

13. The terminal device according to claim 10, characterized in that, The loudspeaker (1000) has two sound-emitting surfaces (1001), which are respectively facing the two side plates (101) of the corner (1011) where the loudspeaker (1000) is located.

14. The terminal device according to claim 13, characterized in that, The terminal device further includes an annular buffer (1100) located between the speaker (1000) and the side plate (101), wherein the sound-emitting surface (1001) of the speaker (1000) is located in the inner ring of the annular buffer (1100).

15. The terminal device according to claim 10, characterized in that, The sound channel (101g) on ​​each of the side plates (101) is a sound channel. The terminal device also includes a dust cover (1200), which is located in the sound channel. The end of the dust cover (1200) away from the speaker (1000) has a dust hole (1201).

16. The terminal device according to claim 15, characterized in that, The end face of the dust cover (1200) away from the speaker (1000) is flush with the outer surface of the side plate (101).

Images