Terminal device

Abstract

The invention discloses terminal equipment. The terminal equipment comprises a middle plate, a loudspeaker, a sealing element and a display screen, the loudspeaker comprises a bottom shell and an inner core, the bottom shell is provided with a containing cavity, the containing cavity comprises a cavity bottom wall and a cavity peripheral wall surrounding the cavity bottom wall, the cavity bottom wall is provided with a through groove, the through groove penetrates through the cavity bottom wall, and the through groove is communicated with the containing cavity; the inner core is located in the containing cavity, blocks the through groove and is borne on the cavity bottom wall. The bottom shell is connected with the middle plate, the through groove faces the middle plate, the sealing piece comprises a first sealing section, the first sealing section is located outside the through groove, the first sealing section is arranged along the edge of the through groove, and the first sealing section is connected with the bottom wall of the cavity and the middle plate in a sealed mode. The orthographic projection of the inner core on the middle plate is at least partially overlapped with the orthographic projection of the first sealing section on the middle plate; in the thickness direction of the terminal device, the display screen is connected to the side, opposite to the loudspeaker, of the middle plate, and a front cavity is formed between the inner core and the display screen. According to the invention, the occupied space of the loudspeaker in the terminal equipment can be reduced.

Description

Technical Field

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

[0002] Speakers are used to convert music and voice audio signals back into sound, supporting external audio playback. Therefore, they are increasingly widely used in terminal devices such as mobile phones, tablets, and laptops. In order to enrich the functionality of terminal devices, existing technologies integrate multiple functional modules capable of various functions. To achieve thinner and smaller terminal devices, it is necessary to save internal space while realizing multifunctionality. Summary of the Invention

[0003] This application provides a terminal device that can reduce the space occupied by the speaker in the terminal device.

[0004] This application provides a terminal device, including a middle plate, a speaker, a seal, and a display screen. The speaker includes a bottom shell and a core. The bottom shell has a receiving cavity, which includes a bottom wall and a peripheral wall surrounding the bottom wall. The bottom wall has a through groove that penetrates the bottom wall and communicates with the receiving cavity. The core includes a frame and a diaphragm, and the diaphragm is connected to the frame.

[0005] The core is located inside the receiving cavity, the core blocks the through groove, the frame is supported on the bottom wall of the cavity, and the diaphragm is exposed in the through groove;

[0006] The bottom shell is connected to the middle plate. Along the thickness direction of the terminal device, the through groove faces the middle plate. The sealing element includes a first sealing section located outside the through groove. The first sealing section is arranged along the edge of the through groove. The first sealing section seals and connects the bottom wall of the cavity and the middle plate. Along the thickness direction of the terminal device, the orthographic projection of the core on the middle plate at least partially overlaps with the orthographic projection of the first sealing section on the middle plate.

[0007] Along the thickness direction of the terminal device, the display screen is connected to the side of the middle plate facing away from the speaker, a front cavity is formed between the core and the display screen, and the through slot forms part of the front cavity.

[0008] The basket support being mounted on the bottom wall of the cavity means that the basket is placed directly inside the housing, eliminating the need for a separate support structure to support the core, as in existing technologies. Along the thickness direction of the terminal device, the orthographic projection of the core onto the middle plate at least partially overlaps with the orthographic projection of the first sealing section onto the middle plate. This means that at least a portion of the orthographic projection of the first sealing section onto the middle plate lies within the orthographic projection of the core; in other words, at least a portion of the first sealing section is directly opposite the core. A front cavity is formed between the core and the display screen, meaning the front cavity is partially located outside the speaker, indicating that the speaker has an open front cavity. The front cavity may be limited to the area between the core and the middle plate, or it may extend to the display screen.

[0009] Understandably, most existing loudspeakers use a closed front cavity, meaning the front cavity is located inside the loudspeaker housing. When the loudspeaker is fixed to the middle plate, the position of the seal can be arbitrarily set, as long as the loudspeaker can connect to the middle plate through the seal. However, the loudspeaker in this application uses an open front cavity, meaning the front cavity is located between the loudspeaker and the display screen. Therefore, in this application, on the one hand, the loudspeaker must connect to the middle plate through the seal; on the other hand, the seal must also provide a seal between the loudspeaker and the middle plate.

[0010] This application reduces the extra space occupied by the first sealing section in the length or width direction of the speaker by placing the first sealing section between the bottom shell and the middle plate, and ensuring that the orthographic projection of the first sealing section on the middle plate is at least partially within the orthographic projection of the core. In other words, the size of the speaker's bottom shell, while ensuring the inclusion of the core, does not need to reserve excessive space for the first sealing section, thus avoiding a large length or width dimension of the speaker. Especially when the orthographic projection of the first sealing section on the middle plate is completely within the orthographic projection of the core, the size of the speaker's bottom shell, while ensuring the inclusion of the core, allows for only a small gap between the cavity peripheral wall of the bottom shell and the core, thus ensuring the size of the rear cavity.

[0011] Compared to existing technologies where the speaker core is supported by a bracket, this application eliminates the bracket in the speaker, with the core directly supported by the speaker's bottom shell. This avoids the bracket occupying space in the speaker's rear cavity, freeing up space to improve the speaker's low-frequency performance and increase sound loudness. Furthermore, eliminating the bracket allows for a reduction in the overall size of the speaker housing, contributing to the thinner and lighter design of the terminal device.

[0012] By combining the orthographic projection of the first sealing section onto the middle plate with at least a portion of the orthographic projection of the core with the elimination of the support, the size of the rear cavity can be maintained as much as possible while reducing the overall size of the speaker. Therefore, this application helps to reduce the space occupied by the speaker within the terminal device, reserving excess space for other functional modules such as camera modules, antenna assemblies, and batteries, thereby facilitating the multi-functionality of the terminal device. Furthermore, the reduced speaker size also allows for more flexible placement of the speaker within the terminal device.

[0013] In one possible implementation, the first sealing section includes a first sub-sealing section, a second sub-sealing section, and a third sub-sealing section, wherein the second sub-sealing section and the third sub-sealing section are connected to opposite ends of the first sub-sealing section;

[0014] Along the length direction of the terminal device, the first sub-sealing segment is located on one side of the core; along the width direction of the terminal device, the second sub-sealing segment and the third sub-sealing segment are located at opposite ends of the core, respectively.

[0015] Along the thickness direction of the terminal device, the orthographic projection of the first sub-sealing segment onto the middle plate lies within the orthographic projection of the core; and / or,

[0016] Along the thickness direction of the terminal device, the orthographic projection of the second sub-sealing segment onto the middle plate lies within the orthographic projection of the core; and / or,

[0017] Along the thickness direction of the terminal device, the orthographic projection of the third sub-sealing segment on the middle plate lies within the orthographic projection of the core.

[0018] In this case, at least one of the first sub-sealing section, the second sub-sealing section, and the third sub-sealing section may have its orthographic projection on the middle plate completely within the orthographic projection of the core, or the orthographic projections of the first sub-sealing section, the second sub-sealing section, and the third sub-sealing section on the middle plate may all be within the orthographic projection of the core.

[0019] It is understandable that the orthographic projection of the first sub-seal section of the first sealing segment onto the middle plate lies within the orthographic projection of the core, and along the length of the terminal device, the first sub-seal section is located on one side of the core. Therefore, when designing the speaker's bottom shell, there is no need to increase the size of the bottom shell to accommodate the first sub-seal section along the length of the terminal device. This saves space occupied by the speaker along the length of the terminal device, allowing for the addition or expansion of other functional modules. Especially when the battery and speaker are arranged side-by-side along the length of the terminal device, the speaker size decreases, and correspondingly, the battery size can be increased, thus improving the terminal device's battery life.

[0020] The orthographic projections of the second and / or third sub-sealing sections of the first sealing section onto the middle plate lie within the orthographic projection of the core. Furthermore, along the width direction of the terminal device, the second and third sub-sealing sections are located at opposite ends of the core. Therefore, when designing the speaker's bottom shell, there is no need to increase the size of the bottom shell to accommodate the second and / or third sub-sealing sections in the width direction of the terminal device. This saves space occupied by the speaker in the width direction of the terminal device, facilitating the addition or expansion of other functional modules in that direction. For example, along the width direction of the terminal device, speaker modules and antenna assemblies can be respectively positioned on opposite sides of the speaker.

[0021] In one possible implementation, the cavity bottom wall includes an inner surface and an outer surface disposed opposite to the inner surface;

[0022] The speaker also includes a limiting part and a limiting protrusion, both of which protrude from the inner surface and are arranged around the through groove. The limiting part and the limiting protrusion together limit the core, and both the limiting part and the limiting protrusion are integrally formed with the bottom shell.

[0023] The limiting part and the limiting protrusion are integrally formed with the bottom shell. When the bottom shell, the limiting part, and the limiting protrusion are all made of metal, the limiting part and the limiting protrusion can be formed by stamping the bottom shell after it has been formed, or the limiting part and the limiting protrusion can be formed simultaneously with the bottom shell, for example, by injection molding the limiting part, the limiting protrusion, and the bottom shell integrally. When the bottom shell is made of metal and the limiting part and the limiting protrusion are made of plastic, the limiting part and the limiting protrusion can be formed by stretching the plastic from the bottom shell.

[0024] Understandably, the limiting part and the limiting protrusion are arranged around the through groove. The limiting part and the limiting protrusion can limit the core, preventing the core from shaking in the housing cavity and improving the stability of the core in the speaker. The limiting part and the limiting protrusion are integrally molded with the bottom shell, which can simplify the speaker manufacturing process, improve the speaker manufacturing efficiency, and make the size of the limiting part and the limiting protrusion more suitable for the size of the bottom shell. It is not necessary to manufacture the limiting part and the limiting protrusion separately after the bottom shell is produced and then assemble the limiting part and the limiting protrusion with the bottom shell.

[0025] In one possible implementation, the limiting portion includes a first segment, a second segment, and a third segment, all of which protrude from the inner surface, with the second segment and the third segment respectively connected to opposite ends of the first segment;

[0026] Along the width direction of the terminal device, the second segment and the third segment are located at opposite ends of the core. Along the length direction of the terminal device, the first segment and the limiting protrusion are located on opposite sides of the core. The opposite ends of the limiting protrusion are respectively connected to the ends of the second segment away from the first segment and the ends of the third segment away from the first segment.

[0027] The first segment, the second segment, the third segment, and the limiting protrusion are all made of plastic, and the first segment, the second segment, the third segment, and the limiting protrusion are integrally formed.

[0028] Understandably, the second and third segments of the limiting part are connected to the opposite ends of the first segment, and the limiting part as a whole is a continuous structure. The limiting protrusion is connected to the end of the second segment away from the first segment and the end of the third segment away from the first segment. Both the limiting part and the limiting protrusion are made of plastic, and the limiting part and the limiting protrusion are integrally molded, which is beneficial for forming the limiting part and the limiting protrusion by pulling the plastic from the bottom shell.

[0029] In one possible implementation, the cavity peripheral wall is provided with a through opening, the through opening passing through the connection between the cavity bottom wall and the cavity peripheral wall, and the through opening communicating with the through groove;

[0030] The limiting protrusion includes a first surface and a second surface disposed opposite to the first surface. The limiting protrusion is provided with a groove and a sound guide groove. The groove is recessed in the first surface, and the sound guide groove is recessed in the second surface.

[0031] The limiting protrusion is located at the through opening, a portion of the cavity peripheral wall extends into the groove, and the sound guide groove communicates with the through groove.

[0032] Understandably, the limiting protrusion has a groove, and part of the cavity wall of the receiving cavity is accommodated in the groove, which can increase the contact area between the bottom shell and the limiting protrusion, thus facilitating the formation of the limiting protrusion by pulling the glue from the bottom shell.

[0033] In one possible implementation, the bottom wall of the cavity is provided with a sound guide groove, which is formed by the outer surface of the cavity being recessed into the inner surface, and the limiting protrusion is formed on the inner surface. The sound guide groove is connected to the through groove.

[0034] The limiting part includes multiple limiting bodies, each of which protrudes from the inner surface. The multiple limiting bodies and the limiting protrusions are arranged at intervals around the through groove, and the multiple limiting bodies and the limiting protrusions jointly contact the peripheral side surface of the basin frame.

[0035] The bottom shell, the plurality of limiting bodies, and the limiting protrusions are all made of metal, and the plurality of limiting bodies and the limiting protrusions are all formed by stamping the bottom shell.

[0036] Understandably, the limiting part includes multiple limiting bodies, meaning it is a discontinuous structure. The limiting part occupies a small amount of space in the speaker's rear cavity, which helps to free up space in the rear cavity. Furthermore, since all the limiting bodies and limiting parts are formed by stamping the bottom shell, the inclusion of multiple limiting bodies and limiting parts does not increase the weight of the bottom shell, thus contributing to a reduction in the overall weight of the speaker.

[0037] In one possible implementation, the middle plate includes a receiving groove for accommodating a battery, the receiving groove including a designated groove sidewall along the length direction of the terminal device, the designated groove sidewall being the groove sidewall closest to the speaker;

[0038] The bottom shell includes an expansion cavity. Along the thickness direction of the terminal device, the expansion cavity is located at one end of the second surface of the designated slot sidewall facing away from the middle plate, and the bottom wall of the expansion cavity overlaps with the designated slot sidewall.

[0039] In this case, along the thickness direction of the terminal device, the expansion cavity is located at one end of the second surface of the designated slot sidewall facing away from the middle plate, and the bottom wall of the expansion cavity overlaps with the sidewall of the designated slot, that is, the expansion cavity is located outside the receiving slot.

[0040] Understandably, by including an expansion cavity in the speaker's bottom housing, and ensuring that the expansion cavity is connected to the receiving cavity, the rear cavity space of the speaker can be increased, thereby improving the speaker's low-frequency performance. Simultaneously, since the expansion cavity is located outside the receiving slot, it does not encroach on the space of the receiving slot. Therefore, it ensures that the receiving slot has ample space, thus accommodating the battery's volume and guaranteeing the terminal device's battery life.

[0041] In one possible implementation, the terminal device further includes a frame, the frame having a sound outlet hole that extends through the frame;

[0042] The bottom shell is connected to the frame, and the sound guide groove connects the through groove and the sound outlet hole;

[0043] The seal further includes a second sealing section, which is disposed along the edge of the groove of the sound guide groove. The second sealing section seals and connects the bottom shell and the frame. The opposite ends of the second sealing section are connected to the opposite ends of the first sealing section.

[0044] In this design, at least a portion of the edges of the middle plate are connected to the frame, and the middle plate and the frame together form the middle frame.

[0045] Understandably, the first and second sealing sections of the seal form a ring, and the seal provides a sealing connection between the bottom shell and the middle plate, which can prevent sound waves caused by the vibration of the core diaphragm from leaking out from the gap between the bottom shell and the middle frame, thus affecting the sound output of the speaker.

[0046] In one possible implementation, the speaker further includes a top plate, which covers the bottom shell on the side opposite to the through groove along the thickness direction of the terminal device;

[0047] The top plate, the bottom shell, the core, the limiting part, and the limiting protrusion together form the rear cavity.

[0048] It is understandable that the top plate encloses the cavity, and the top plate, bottom shell, core, limiting part and limiting protrusion together form a closed rear cavity.

[0049] In one possible implementation, the middle plate is provided with a mounting groove that extends through the middle plate;

[0050] The diaphragm of the core faces the mounting groove, the display screen covers the mounting groove, and the diaphragm of the core and the display screen are spaced apart and opposite each other along the thickness direction of the terminal device;

[0051] The core, the groove wall of the through slot, the first sealing section, the groove wall of the mounting slot, and the display screen together form the front cavity.

[0052] Understandably, along the thickness direction of the middle plate, the display screen and speaker are located on opposite sides of the middle plate, with the core diaphragm facing the mounting groove and the display screen covering the mounting groove. Along the thickness direction of the middle plate, the core, bottom shell, first sealing section, middle plate, and display screen form the front cavity, meaning the speaker has an open front cavity. Therefore, this helps to reduce the thickness of the terminal device and promotes its lightweight and thin design. Attached Figure Description

[0053] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0054] Figure 1 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application;

[0055] Figure 2 for Figure 1 A schematic diagram of the exploded structure of the terminal device shown.

[0056] Figure 3 for Figure 2An exploded view of part of the structure of the terminal device shown.

[0057] Figure 4 for Figure 3 A schematic diagram of the sealing component of the terminal device shown;

[0058] Figure 5 for Figure 2 A partial structural diagram of the middle frame of the first housing of the terminal device shown;

[0059] Figure 6 for Figure 3 A schematic diagram of the structure of the speaker of the terminal device shown in the figure;

[0060] Figure 7 for Figure 6 The exploded structural diagram of the loudspeaker at the first angle is shown.

[0061] Figure 8 for Figure 7 The exploded structural diagram of the speaker at the second angle is shown.

[0062] Figure 9 for Figure 6 The diagram shows a partial cross-sectional view of the speaker and the middle frame assembly.

[0063] Figure 10 for Figure 3 A schematic diagram of the structure of the bottom shell of the second embodiment of the speaker of the terminal device shown at a first angle;

[0064] Figure 11 for Figure 10 A schematic diagram of the second angle of the bottom shell shown;

[0065] Figure 12 for Figure 10 The diagram shows a partial cross-sectional view of the speaker and the middle frame assembly.

[0066] Figure 13 for Figure 3 A partial cross-sectional schematic diagram of the third embodiment of the speaker of the terminal device shown, assembled with the middle frame. Detailed Implementation

[0067] For ease of understanding, the terminology used in the embodiments of this application will be explained first.

[0068] And / or: This is simply a way of describing the relationship between related objects. It indicates that there can be three kinds of relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0069] Multiple: refers to two or more.

[0070] Connection: should be interpreted broadly. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through an intermediary.

[0071] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0072] Please refer to the following: Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the terminal device 1000 provided in the embodiments of this application; Figure 2 for Figure 1 The diagram shows the exploded structure of the terminal device 1000.

[0073] This application provides a terminal device 1000. The terminal device 1000 may include, but is not limited to, mobile phones, tablets, laptops, walkie-talkies, Bluetooth speakers / headphones, Walkie-Talkie, and other terminal devices with broadcasting functions. The terminal device 1000 can be a curved screen phone or a flat screen phone, a candybar phone or a foldable screen phone. More specifically, the terminal device 1000 can be an outward-folding foldable screen phone or an inward-folding foldable screen phone.

[0074] In this embodiment, a foldable screen phone is used as an example for the terminal device 1000. Specifically, an inward-folding screen phone is used as an example.

[0075] For ease of description, define Figure 1 The length direction of the terminal device 1000 shown is the X-axis direction, the width direction is the Y-axis direction, and the thickness direction is the Z-axis direction. The X-axis, Y-axis, and Z-axis directions are all perpendicular to each other. The terms "same," "equal," or "parallel" used below are all subject to tolerance.

[0076] Terminal device 1000 includes a housing assembly 500, a display screen 400, a battery, a camera module (not shown), an antenna assembly (not shown), a speaker, and a seal. The camera module enables the terminal device 1000 to take pictures. The antenna assembly enables the terminal device 1000 to receive / transmit signals. Along the thickness direction (Z-axis) of the terminal device 1000, the display screen 400 is located on one side of the housing assembly 500, and the housing assembly 500 supports the display screen 400. The housing assembly 500 has a receiving space. The battery, camera module, antenna assembly, speaker, and seal are located within the receiving space. The battery powers the speaker, camera module, and antenna assembly. The speaker is sealed to the housing assembly 500 via the seal.

[0077] The housing assembly 500 includes a first housing 510, a second housing 520, and a pivot mechanism 530. The pivot mechanism 530 is rotatably connected between the first housing 510 and the second housing 520 to achieve a rotatable connection between the first housing 510 and the second housing 520. Both the first housing 510 and the second housing 520 include a rear cover 540 and a middle frame 550.

[0078] Along the thickness direction (Z-axis direction) of the terminal device 1000, the middle frame 550 of the first housing 510 and the rear cover 540 of the first housing 510 are positioned opposite each other. The middle frame 550 and the rear cover 540 of the first housing 510 form a first chamber. Along the thickness direction (Z-axis direction) of the terminal device 1000, the middle frame 550 and the rear cover 540 of the second housing 520 are positioned opposite each other. The middle frame 550 and the rear cover 540 of the second housing 520 form a second chamber. The first chamber and the second chamber together form an accommodating space. A pivot mechanism 530 is rotatably connected to the first housing 510 and the second housing 520. The first housing 510 and the second housing 520 are rotatably connected by the pivot mechanism 530 to enable the first housing 510 to be folded and unfolded relative to the second housing 520.

[0079] The display screen 400 is mounted on the first housing 510 and the second housing 520, and is foldable around the pivot mechanism 530. The display screen 400 is a flexible screen. The display screen 400 includes a first portion 410, a second portion 420, and a bendable portion 430. The bendable portion 430 connects the first portion 410 and the second portion 420. The first portion 410 is mounted on the first housing 510, and the second portion 420 is mounted on the second housing 520. The bendable portion 430 is disposed opposite to the pivot mechanism 530.

[0080] The first housing 510 and the second housing 520 can rotate relative to each other via the pivot mechanism 530, allowing the display screen 400 to switch between an unfolded state and a folded state. Specifically, when the first housing 510 and the second housing 520 are rotated relative to each other to be arranged side by side, the first portion 410 and the second portion 420 of the display screen 400 are unfolded relative to each other, and the bendable portion 430 is flattened without bending. When the first housing 510 and the second housing 520 are rotated relative to each other to be arranged opposite each other, the first portion 410 and the second portion 420 of the display screen 400 are arranged opposite each other, and the bendable portion 430 is bent.

[0081] Please see Figure 3 , Figure 3 for Figure 2 An exploded view of part of the structure of the terminal device 1000 shown.

[0082] The battery 300, camera module, antenna assembly, speaker 100, and seal 200 can all be located in the first chamber or in the second chamber. This embodiment only illustrates the example where the battery 300, camera module, antenna assembly, speaker 100, and seal 200 are all located in the first chamber.

[0083] It should be noted that, Figure 3 The speaker 100 shown is for illustrative purposes only and does not constitute a specific limitation on the overall shape of the speaker 100. Figure 3 As shown, the overall shape of the speaker 100 can be rectangular; the overall shape of the speaker 100 can also be other irregular shapes. This application embodiment does not impose specific limitations on the overall shape of the speaker 100.

[0084] Please see Figure 4 , Figure 4 for Figure 3 A schematic diagram of the structure of the seal 200 of the terminal device 1000 shown.

[0085] The seal 200 is annular. The seal 200 includes a first sealing section 210 and a second sealing section 220. The first sealing section 210 includes a first sub-sealing section 211, a second sub-sealing section 212, and a third sub-sealing section 213. The second sub-sealing section 212 and the third sub-sealing section 213 are respectively connected to opposite ends of the first sub-sealing section 211. The second sealing section 220 is connected to the end of the second sub-sealing section and the third sub-sealing section 213 away from the first sub-sealing section 211. The second sealing section 220 is disposed opposite to the first sub-sealing section 211. It can be understood that the second sealing section 220 is connected to opposite ends of the first sealing section 210.

[0086] It should be noted that the first sealing section 210 and the second sealing section 220 can be integrally formed or are separate structural components. The first sealing section 210 and the second sealing section 220 can be, but are not limited to, foam, adhesive backing, liquid silicone rubber, and rubber. This application embodiment does not impose specific limitations in this regard.

[0087] Please see Figure 5 , Figure 5 for Figure 2 This is a partial structural diagram of the middle frame 550 of the first housing 510 of the terminal device 1000. The middle frame 550 includes a side frame 551 and a middle plate 552. At least a portion of the edge of the middle plate 552 is connected to the side frame 551. The side frame 551 is provided with a sound outlet 559. The sound outlet 559 penetrates through the side frame 551.

[0088] It should be noted that the thickness direction of the middle frame 550 is the same as the thickness direction (Z-axis direction) of the terminal device 1000, the length direction of the middle frame 550 is the same as the length direction (X-axis direction) of the terminal device 1000, and the width direction of the middle frame 550 is the same as the width direction (Y-axis direction) of the terminal device 1000.

[0089] The middle plate 552 includes a first surface 553 and a second surface 554. The first surface 553 and the second surface 554 are arranged facing away from each other along the thickness direction (Z-axis direction) of the middle plate 552. The middle plate 552 is provided with a receiving groove 555. The receiving groove 555 is used to receive the battery 300. The receiving groove 555 is formed on the first surface 553. One designated groove sidewall is included among the plurality of groove sidewalls of the receiving groove 555. In this embodiment, the receiving groove 555 is surrounded by a plurality of insulating ribs 557 protruding from the first surface 553 of the middle plate 552.

[0090] In other embodiments, the receiving groove 555 may also be directly recessed into the first surface 553 of the middle plate 552. Each isolation rib 557 may be a continuous strip structure or an intermittent strip structure.

[0091] The middle frame 550 also includes a recessed groove 556 and a mounting groove 558. The recessed groove 556 is formed on the first surface 553 of the middle frame 550. The recessed groove 556 is located at one end of the length direction of the middle plate 552, and is spaced apart from the receiving groove 555. Along the length direction (X-axis direction) of the middle plate 552, the designated groove sidewall is the groove sidewall of the receiving groove 555 closest to the recessed groove 556. In this embodiment, the recessed groove 556 is recessed from the first surface 553 toward the second surface 554. The recessed groove 556 has a groove bottom wall 5561. A frame 551 is connected to the groove bottom wall 5561 of the recessed groove 556. The frame 551 forms a groove sidewall of the recessed groove 556. The sound outlet 559 communicates with the recessed groove 556.

[0092] In this embodiment, the mounting groove 558 is disposed on the bottom wall 5561 of the sink 556. Along the thickness direction (Z-axis direction) of the middle plate 552, the mounting groove 558 penetrates the bottom wall 5561 of the sink 556 and the second surface 554 of the middle plate 552.

[0093] In other embodiments, the recessed groove 556 may also be formed by multiple ribs protruding from the first surface 553 of the middle plate 552. The middle frame 550 may also not have the recessed groove 556, in which case the mounting groove 558 directly penetrates the first surface 553 and the second surface 554 of the middle plate 552.

[0094] In this embodiment, the rear cover 540 is connected to the frame 551, and the rear cover 540, the frame 551, and the middle plate 552 form a first chamber. The sound outlet 559 of the frame 551 communicates with the first chamber.

[0095] It should be noted that the structure of the middle frame 550 of the second housing 520 can also refer to the structure of the middle frame 550 of the first housing 510 described above.

[0096] Please continue reading. Figure 3 The battery 300 is supported in the receiving groove 555 of the middle frame 550, and the speaker 100 and the seal 200 are mounted in the middle plate 552 of the middle frame 550. In this embodiment, the speaker 100 and the seal 200 are specifically mounted in the recess 556 of the middle plate 552. Along the length direction (X-axis direction) of the terminal device 1000, the camera module, the antenna assembly, and the speaker 100 are located at the same end of the battery 300. Along the width direction (Y-axis direction) of the terminal device 1000, the camera module and the antenna assembly are located on opposite sides of the recess 556.

[0097] In other embodiments, the camera module and antenna assembly may also be located on the same side of the recess 556. This application does not limit the specific location of the camera module and antenna assembly.

[0098] Please refer to the following: Figure 6 , Figure 7 and Figure 8 , Figure 6 for Figure 3 A schematic diagram of the structure of the speaker 100 of the terminal device 1000 shown in the first embodiment; Figure 7 for Figure 6 An exploded structural diagram of the loudspeaker 100 at a first angle; Figure 8 for Figure 7 An exploded view of the second angle of the loudspeaker 100 shown.

[0099] This application provides a first embodiment of a loudspeaker 100. The loudspeaker 100 includes a housing 30 and a core 40. The housing 30 includes a bottom shell 10 and a top plate 20. The bottom shell 10 has a receiving cavity 13, and the top plate 20 covers the receiving cavity 13. The core 40 is received in the receiving cavity 13. In this embodiment, both the bottom shell 10 and the top plate 20 are made of metal. In other embodiments, the bottom shell 10 and the top plate 20 may also be made of other materials such as plastic.

[0100] It should be noted that in this embodiment, the length direction of the speaker 100 is the width direction (Y-axis direction) of the terminal device 1000, the width direction of the speaker 100 is the length direction (X-axis direction) of the terminal device 1000, and the height direction of the speaker 100 is the thickness direction (Z-axis direction) of the terminal device 1000.

[0101] The bottom shell 10 includes a bottom plate 11 and a side plate 12. The bottom plate 11 includes an inner surface 111 and an outer surface 112. The inner surface 111 and the outer surface 112 are disposed opposite to each other along the thickness direction of the bottom plate 11. The side plate 12 is disposed around the periphery of the bottom plate 11. The side plate 12 protrudes from the inner surface 111 of the bottom plate 11 and extends away from the inner surface 111. The side plate 12 and the inner surface 111 form an angle. The side plate 12 and the bottom plate 11 form a receiving cavity 13. It can be understood that the bottom plate 11 forms the bottom wall of the receiving cavity 13. The inner surface 111 of the bottom plate 11 faces the interior of the receiving cavity 13. The outer surface 112 faces the exterior of the receiving cavity 13. The side plate 12 forms the periphery wall of the receiving cavity 13. In this embodiment, the bottom plate 11 and the side plate 12 are integrally formed structural components. In other embodiments, the bottom plate 11 and the side plate 12 may also be separate structural components. In this case, the side plate 12 may be integrally formed with the top plate 20.

[0102] In this embodiment, the inner surface 111 includes a first portion 1111 and a second portion 1112. The second portion 1112 surrounds the first portion 1111, and the periphery of the second portion 1112 is connected to the periphery of the first portion 1111. Along the height direction (Z-axis direction) of the bottom shell 10, the first portion 1111 is closer to the outer surface 112 relative to the second portion 1112. That is, the first portion 1111 of the inner surface 111 is recessed relative to the second portion 1112. To increase the smoothness of the transition between the first portion 1111 and the second portion 1112, the connection between the first portion 1111 and the second portion 1112 is arc-shaped.

[0103] In other embodiments, the connection between the first portion 1111 and the second portion 1112 may also extend along the height direction (Z-axis direction) of the bottom shell 10. The first portion 1111 and the second portion 1112 may also be flush (with certain dimensional tolerances allowed). This embodiment does not impose specific limitations on this.

[0104] In this embodiment, the bottom shell 10 is provided with a through groove 14. Along the height direction (Z-axis direction) of the bottom shell 10, the through groove 14 penetrates the first portion 1111 of the inner surface 111 and the outer surface 112. In fact, the area of ​​the through groove 14 is smaller than the area of ​​the first portion 1111 of the inner surface 111, and there is a margin between the through groove 14 and the first portion 1111. In this embodiment, the shape of the through groove 14 is the same as the shape of the first portion 1111. In other embodiments, the shape of the through groove 14 may also be different from the shape of the first portion 1111.

[0105] The bottom shell 10 is provided with a sound guide groove 16. The sound guide groove 16 is formed by recessing from the outer surface 112 of the bottom plate 11 towards the inner surface 111, and a limiting protrusion 17 is formed on the inner surface 111. The sound guide groove 16 extends along the length of the bottom plate 11. The opening of the sound guide groove 16 is located on the periphery of the receiving cavity 13. The sound guide groove 16 communicates with the receiving cavity 13 and the through groove 14. It can be understood that the speaker 100 includes the limiting protrusion 17, which protrudes from the inner surface 111 of the bottom shell 10. In this embodiment, the sound guide groove 16 and the limiting protrusion 17 are directly stamped from the bottom plate 11, and the sound guide groove 16 and the limiting protrusion 17 are formed simultaneously. The limiting protrusion 17 and the bottom shell 10 are integrally formed. The limiting protrusion 17 is also made of metal.

[0106] In this embodiment, the loudspeaker 100 further includes a limiting portion 15. The limiting portion 15 includes a plurality of limiting bodies 151. The plurality of limiting bodies 151 protrude from the inner surface 111 of the base plate 11. The plurality of limiting bodies 151 are spaced apart along the edge of the through groove 14. Each limiting body 151 is spaced apart from the groove wall of the through groove 14. Specifically, the plurality of limiting bodies 151 are located at the connection between the first part 1111 and the second part 1112 of the inner surface 111. Each limiting body 151 is directly stamped from the base plate 11. That is, each limiting body 151 is integrally formed with the base plate 11. The material of each limiting body 151 is metal. There are six limiting bodies 151. Along the length direction (Y-axis direction) of the loudspeaker 100, four limiting bodies 151 are distributed in pairs at opposite ends of the through groove 14. Along the width direction (X-axis direction) of the loudspeaker 100, two limiting bodies 151 are distributed on the same side of the through groove 14.

[0107] In other embodiments, each limiting body 151 may also be formed by other processes; for example, each limiting body 151 may also be formed by applying adhesive to the base plate 11. The limiting portion 15 may also include multiple limiting springs, that is, the limiting body 151 is a limiting spring.

[0108] In this embodiment, the limiting protrusion 17 and a plurality of limiting bodies 151 are arranged at intervals around the through groove 14. Specifically, along the width direction (X-axis direction) of the speaker 100, the limiting protrusion 17 is located on one side of the through groove 14 and is opposite to the two limiting bodies 151.

[0109] It should be noted that, Figure 7 The limiting portion 15 and the limiting protrusion 17 are only used to illustrate the structure of the limiting portion 15 and the limiting protrusion 17, and do not constitute a limitation on the specific dimensions of the limiting portion 15 and the limiting protrusion 17. In order to reduce the space occupied by the limiting portion 15 and the limiting protrusion 17 in the rear cavity, the limiting portion 15 and the limiting protrusion 17 can be set as small as possible, as long as the limiting portion 15 and the limiting protrusion 17 can limit the core 40.

[0110] Please continue reading. Figure 7 and Figure 8 The core 40 includes a frame 41, a diaphragm 42, and a drive unit (not shown). The frame 41 forms the supporting skeleton of the core 40. The frame 41 has peripheral sides. The frame 41 has an opening. The diaphragm 42 is supported and fixed to the frame 41. The diaphragm 42 covers the opening of the frame 41. The drive unit is located inside the frame 41. The drive unit is used to drive the diaphragm 42 to vibrate relative to the frame 41. The drive unit includes, but is not limited to, an electric (moving coil) drive unit, an electrostatic (capacitive) drive unit, an electromagnetic (reed) drive unit, or a piezoelectric (crystal) drive unit. In this embodiment, the drive unit is a moving coil drive unit. The drive unit includes a voice coil and a magnetic circuit system. The voice coil cooperates with the magnetic circuit system to drive the diaphragm 42 to vibrate relative to the frame 41.

[0111] Please refer to the following: Figure 7 , Figure 8 and Figure 9 , Figure 9 for Figure 6The diagram shows a partial cross-sectional view of the loudspeaker 100 assembled with the mid-frame 550. In this embodiment, the core 40 is housed within the housing 30 of the loudspeaker 100. Specifically, the core 40 is located in the receiving cavity 13 of the bottom shell 10. The core 40 blocks the through slot 14 of the bottom shell 10. The frame 41 of the core 40 is supported by the bottom wall of the receiving cavity 13. The diaphragm 42 of the core 40 is exposed in the through slot 14. Along the width direction (X-axis direction) of the loudspeaker 100, a limiting protrusion 17 is located on one side of the frame 41. A plurality of limiting bodies 151 are located on the periphery of the frame 41. The plurality of limiting parts 15 and the limiting protrusion 17 contact the periphery of the frame 41. Specifically, along the length direction (Y-axis direction) of the loudspeaker 100, each end of the core 40 has two limiting bodies 151. Along the length direction (Y-axis direction) of the loudspeaker 100, four limiting bodies 151 located at opposite ends of the core 40 limit the core 40, preventing it from moving along the length direction (Y-axis direction) of the loudspeaker 100. Along the width direction (X-axis direction) of the loudspeaker 100, the core 40 has two limiting bodies 151 on the side facing away from the limiting protrusion 17. Along the width direction (X-axis direction) of the loudspeaker 100, the two limiting bodies 151 on one side of the core 40 and the limiting protrusion 17 on the other side limit the core 40, preventing it from moving along the length direction (X-axis direction) of the loudspeaker 100.

[0112] It should be noted that there may be a certain gap between the multiple limiting bodies 151 and the peripheral surfaces of the basin frame 41, and this gap is within the assembly tolerance range; there may also be a certain gap between the limiting protrusion 17 and the peripheral surfaces of the basin frame 41, and this gap is within the assembly tolerance range, so as to facilitate the installation of the basin frame 41 between the multiple limiting bodies 151 and the limiting protrusion 17. The gap between the multiple limiting bodies 151 and the peripheral surfaces of the basin frame 41 does not affect the limiting effect of the multiple limiting bodies 151 on the basin frame 41. The gap between the limiting protrusion 17 and the peripheral surfaces of the basin frame 41 does not affect the limiting effect of the limiting protrusion 17 on the basin frame 41.

[0113] In this embodiment, the core 40 is bonded to the base plate 11. Specifically, the frame 41 of the core 40 is bonded to the first portion 1111 of the inner surface 111 of the base plate 11.

[0114] In this embodiment, along the height direction (Z-axis direction) of the speaker 100, the top plate 20 is connected to the side plate 12 on the side away from the bottom plate 11. The top plate 20 covers the receiving cavity 13. That is, along the height direction (Z-axis direction) of the speaker 100, the top plate 20 covers the side of the bottom shell 10 facing away from the through groove 14. The top plate 20, the bottom shell 10, the core 40, the limiting part 15, and the limiting protrusion 17 together form the rear cavity. In this embodiment, the frame 41 of the core 40 is welded to the top plate 20. In other embodiments, the frame 41 and the top plate 20 may also be bonded together.

[0115] Understandably, compared to the prior art where the speaker 100 uses a plastic bracket to support and limit the core 40, this embodiment eliminates the plastic bracket in the speaker 100. The core 40 is directly supported on the base plate 11 of the speaker 100's housing 30, and the diaphragm 42 of the core 40 is exposed in the through groove 14. The limiting part 15 and the limiting protrusion 17 are arranged around the through groove 14, and the limiting part 15 and the limiting protrusion 17 can limit the core 40. Therefore, the plastic bracket can be avoided from occupying the rear cavity space of the speaker 100, freeing up the rear cavity space, improving the low-frequency performance of the speaker 100, and increasing the sound loudness. At the same time, eliminating the plastic bracket can also appropriately reduce the overall size of the housing 30, thereby reducing the overall size of the speaker 100, which is beneficial to the thinning and lightening of the terminal device 1000. In addition, the elimination of the plastic bracket can also reduce the production cost of the speaker 100.

[0116] In this embodiment, limiting protrusions 17 and multiple limiting portions 15 are provided. Along the length direction (Y-axis direction) of the speaker 100, a portion of the limiting portions 15 are located at opposite ends of the core 40; along the width direction (X-axis direction) of the speaker 100, the limiting protrusions 17 and another portion of the limiting portions 15 are located on opposite sides of the core 40. Therefore, the limiting protrusions 17 and multiple limiting portions 15 can limit the frame 41 of the core 40 from the length and width directions of the speaker 100, preventing the core 40 from shaking in the receiving cavity 13 and improving the stability of the core 40 in the speaker 100.

[0117] Please continue reading. Figure 9In this embodiment, the speaker 100 is mounted on the first housing 510. The bottom plate 11 of the bottom housing 10 is connected to the first surface 553 of the middle plate 552. Along the thickness direction (Z-axis direction) of the terminal device 1000, the through groove 14 of the bottom housing 10 is opposite to and communicates with the mounting groove 558 of the middle frame 550. The opening of the sound guide groove 16 faces the sound outlet hole 559 of the frame 551. The first sealing section 210 of the seal 200 is mounted on the outer surface 112 of the bottom plate 11. The first sealing section 210 is disposed along the edge of the through groove 14 of the bottom housing 10. The first sealing section 210 seals and connects the bottom plate 11 and the middle plate 552 of the bottom housing 10. Specifically, the first sealing section 210 seals and connects the bottom plate 11 of the bottom housing 10 and the bottom wall 5561 of the recess 556. Along the width direction (Y-axis direction) of the terminal device 1000, the first sub-sealing section 211 is located on one side of the core 40; along the length direction (X-axis direction) of the terminal device 1000, the second sub-sealing section 212 and the third sub-sealing section 213 are located at opposite ends of the core 40. The second sealing section 220 is mounted on the side plate 12 of the bottom shell 10. The second sealing section 220 is arranged along the outer periphery of the groove opening of the sound guide groove 16. The second sealing section 220 seals the connection between the side plate 12 of the bottom shell 10 and the frame 551. Specifically, the second sealing section 220 is mounted on the groove sidewall of the recess 556 formed by the frame 551. Along the thickness direction (Z-axis direction) of the terminal device 1000, the core 40 is located on the side of the bottom plate 11 facing away from the middle plate 552. The diaphragm 42 of the core 40 faces the mounting groove 558 of the middle frame 550.

[0118] Along the thickness direction (Z-axis direction) of the terminal device 1000, the orthographic projection of the core 40 on the first surface 553 of the middle plate 552 at least partially overlaps with the orthographic projection of the first sealing segment 210 on the first surface 553 of the middle plate 552. Specifically, along the thickness direction of the terminal device 1000, the orthographic projection of the first sub-sealing segment 211 of the first sealing segment 210 of the seal 200 on the first surface 553 of the middle plate 552 lies within the orthographic projection of the core 40; and / or, the orthographic projection of the second sub-sealing segment 212 of the first sealing segment 210 of the seal 200 on the first surface 553 of the middle plate 552 lies within the orthographic projection of the core 40; and / or, the orthographic projection of the third sub-sealing segment 213 of the first sealing segment 210 of the seal 200 on the first surface 553 of the middle plate 552 lies within the orthographic projection of the core 40.

[0119] Along the thickness direction (Z-axis direction) of the terminal device 1000, the core 40 and the first portion 410 of the display screen 400 are located on opposite sides of the middle plate 552. The first portion 410 of the display screen 400 is mounted on the second surface 554 of the middle plate 552. The first portion 410 of the display screen 400 covers the mounting groove 558 of the middle frame 550. Along the thickness direction (Z-axis direction) of the terminal device 1000, the diaphragm 42 of the core 40 is spaced apart from the first portion 410 of the display screen 400. In this embodiment, the first portion 410 of the display screen 400 includes a display module 411 and a display adhesive layer 412. The display module 411 is bonded to the second surface 554 of the middle plate 552 through the display adhesive layer 412.

[0120] Along the thickness direction (Z-axis direction) of the terminal device 1000, the bottom plate 11 of the bottom shell 10, the first sealing section 210 of the seal 200, and the bottom wall 5561 of the recess 556 are located between the core 40 and the first part 410 of the display screen 400. It can be understood that, along the thickness direction of the terminal device 1000, the distance between the core 40 and the first part 410 of the display screen 400 is equal to the sum of the thicknesses of the bottom plate 11 of the bottom shell 10, the first sealing section 210, and the bottom wall 5561 of the recess 556 (allowing for certain process tolerances). The core 40, the bottom plate 11 of the bottom shell 10, the first sealing section 210, the bottom wall 5561 of the recess 556, and the first part 410 of the display screen 400 form a front cavity. It can be understood that the core 40, the bottom plate 11 of the bottom shell 10, the first sealing section 210, the middle plate 552, and the first part 410 of the display screen 400 form a front cavity. The sound guide groove 16 communicates with the front cavity.

[0121] When the driving device of the core 40 drives the diaphragm 42 to vibrate relative to the frame 41, it can push the air in the front cavity to vibrate, thereby forming sound waves in the front cavity. The sound waves are transmitted from the front cavity to the sound guide groove 16 and are transmitted out through the sound outlet 559 of the frame 551, thereby enabling the terminal device 1000 to perform the broadcasting function.

[0122] In other embodiments, when the recessed groove 556 is not provided in the middle frame 550, along the thickness direction (Z-axis direction) of the terminal device 1000, the bottom plate 11 of the bottom shell 10, the first sealing section 210 of the seal 200, and the middle plate 552 of the middle frame 550 are located between the core 40 and the first portion 410 of the display screen 400. It can be understood that along the thickness direction (Z-axis direction) of the terminal device 1000, the distance between the core 40 and the first portion 410 of the display screen 400 is equal to the sum of the thicknesses of the bottom plate 11 of the bottom shell 10, the first sealing section 210, and the middle plate 552 of the middle frame 550 (allowing for certain process tolerances). The core 40, the bottom plate 11 of the bottom shell 10, the first sealing section 210, the middle plate 552 of the middle frame 550, and the first portion 410 of the display screen 400 form a front cavity. The sound guide groove 16 communicates with the front cavity.

[0123] The middle frame 550 may not have a mounting slot 558. Along the thickness direction (Z-axis direction) of the terminal device 1000, the bottom plate 11 of the bottom shell 10 and the first sealing section 210 of the seal 200 are located between the core 40 and the middle plate 552. The core 40, the bottom plate 11 of the bottom shell 10, the first sealing section 210, and the middle plate 552 of the middle frame 550 form the front cavity. The sound guide groove 16 communicates with the front cavity.

[0124] It is understandable that by forming the first sealing section 210 and the second sealing section 220 into an annular shape to seal the connection between the bottom shell 10 and the frame 551 and the middle plate 552, the sound waves formed in the front cavity can be prevented from leaking from the gap between the bottom shell 10 and the middle frame 550, thereby avoiding affecting the sound output of the speaker 100.

[0125] In this embodiment, by placing the first sealing section 210 between the bottom shell 10 and the middle plate 552, and ensuring that the orthographic projection of the first sealing section 210 on the middle plate 552 is at least partially within the orthographic projection of the core 40, the additional space occupied by the first sealing section 210 in the length or width direction of the speaker 100 can be reduced. That is, the size of the bottom shell 10 of the speaker 100, while ensuring the inclusion of the core 40, does not need to reserve excessive space for the first sealing section 210, thus avoiding a large length or width dimension of the speaker 100. Especially when the orthographic projection of the first sealing section 210 on the middle plate 552 is completely within the orthographic projection of the core 40, the size of the bottom shell 10 of the speaker 100, while ensuring the inclusion of the core 40, allows for only a small gap between the cavity peripheral wall of the bottom shell 10 and the core 40, ensuring the size of the rear cavity. Therefore, this embodiment can reduce the space occupied by the speaker 100 in the terminal device 1000. By combining the first sealing section 210, whose orthogonal projection on the middle plate 552 is at least partially located within the orthogonal projection of the core 40, with the bottom shell 10 directly supporting the core 40, it is possible to minimize the size of the rear cavity while reducing the overall size of the speaker 100.

[0126] Specifically, along the thickness direction (Z-axis direction) of the terminal device 1000, the orthographic projection of the first sub-seal section 211 of the first sealing section 210 of the seal 200 onto the first surface 553 of the middle plate 552 lies within the orthographic projection of the core 40. This saves the width direction (X-axis direction) dimension of the speaker 100, and consequently saves the length direction (X-axis direction) dimension of the middle frame 550 occupied by the speaker 100. As users demand higher battery life from the terminal device 1000, the battery 300 needs to be designed to be larger, and correspondingly, the receiving slot 555 on the middle plate 552 for accommodating the battery 300 also needs to be larger. When the width direction dimension of the speaker 100 is smaller, more space can be freed up for the receiving slot 555, which is beneficial for designing a larger size for the receiving slot 555 to accommodate a larger battery 300, thereby improving the battery life of the terminal device 1000.

[0127] Along the thickness direction (Z-axis direction) of the terminal device 1000, the orthographic projection of the second sub-sealing section 212 and / or the third sub-sealing section 213 of the first sealing section 210 of the seal 200 onto the first surface 553 of the middle plate 552 lies within the orthographic projection of the core 40. This can save the length (X-axis direction) dimension of the speaker 100, and consequently save the width (Y-axis direction) dimension of the middle frame 550 occupied by the speaker 100. When the length dimension of the speaker 100 is smaller, on the one hand, more space can be freed up for the camera module and antenna assembly, and on the other hand, the placement of the speaker 100 is more flexible, making it easier to align the sound guide groove 16 of the speaker 100 with the sound outlet 559 of the frame 551.

[0128] It should be noted that when the battery 300, camera module, antenna assembly, speaker 100 and seal 200 are all located in the second chamber, the assembly structure of the battery 300, camera module, antenna assembly, speaker 100 and seal 200 with the middle frame 550 of the second housing 520 can also refer to the assembly structure with the middle frame 550 of the first housing 510 described above.

[0129] Please refer to the following: Figure 10 and Figure 11 , Figure 10 for Figure 3 A schematic diagram of the structure of the bottom shell 10 of the second embodiment of the speaker 100 of the terminal device 1000 at a first angle; Figure 11 for Figure 10 A schematic diagram of the second angle of the bottom shell 10 shown.

[0130] This application provides a second embodiment of the loudspeaker 100. The difference between this embodiment and the first embodiment described above is that the limiting portion 15 is a continuous structure.

[0131] In this embodiment, the bottom shell 10 includes a bottom plate 11 and a side plate 12. The side plate 12 and the bottom plate 11 form a receiving cavity 13. The bottom plate 11 forms the bottom wall of the receiving cavity 13. The side plate 12 forms the peripheral wall of the receiving cavity 13. The specific connection method between the bottom plate 11 and the side plate 12 can be referred to the first embodiment described above, and will not be elaborated further here.

[0132] In this embodiment, the inner surface 111 of the base plate 11 includes a first portion 1111 and a second portion 1112. The second portion 1112 surrounds the first portion 1111, and the periphery of the second portion 1112 is connected to the periphery of the first portion 1111. The first portion 1111 and the second portion 1112 are flush (with certain dimensional tolerances allowed).

[0133] It should be noted that, Figure 10 The dashed lines in the diagram are only used to divide the first part 1111 and the second part 1112, and they do not constitute a specific constraint on the structure of the bottom shell 10.

[0134] In other embodiments, along the height direction of the bottom shell 10, the first portion 1111 may also be closer to the outer surface 112 relative to the second portion 1112. That is, the first portion 1111 of the inner surface 111 is recessed relative to the second portion 1112. To increase the smoothness of the transition between the first portion 1111 and the second portion 1112, the connection between the first portion 1111 and the second portion 1112 may be arc-shaped.

[0135] In this embodiment, the bottom shell 10 is provided with a through groove 14. The way the through groove 14 is set can be referred to the first embodiment described above, and will not be described in detail here.

[0136] In this embodiment, the side plate 12 is provided with a through opening 1121. The through opening 1121 is located at the connection between the bottom plate 11 and the side plate 12. The through opening 1121 passes through the bottom plate 11 and the side plate 12. Along the length direction (X-axis direction) of the speaker 100, the through opening 1121 communicates with the through groove 14.

[0137] In this embodiment, the loudspeaker 100 further includes a limiting portion 15 and a limiting protrusion 17. The limiting portion 15 is generally "C"-shaped. The limiting portion 15 includes a first segment 153, a second segment 154, and a third segment 155. The first segment 153, the second segment 154, and the third segment 155 all protrude from the inner surface 111 of the base plate 11. It can be understood that the first segment 153, the second segment 154, and the third segment 155 are all located outside the through groove 14. Along the length direction (Y-axis direction) of the loudspeaker 100, the second segment 154 and the third segment 155 are located at opposite ends of the through groove 14. Along the width direction (X-axis direction) of the loudspeaker 100, the first segment 153 is located on the side of the through groove 14 away from the through opening 1121. The first segment 153 connects the second segment 154 and the third segment 155. The first segment 153, the second segment 154, and the third segment 155 are all spaced apart from the groove wall of the through groove 14. Specifically, the limiting part 15 is formed by stretching the base plate 11. That is, each limiting body 151 is made of plastic, and each limiting body 151 is integrally formed with the base plate 11. In other embodiments, the limiting part 15 may also be made of metal, and the limiting part 15 may also be formed by stamping the base plate 11.

[0138] The limiting protrusion 17 includes a first surface 171 and a second surface 172. The first surface 171 and the second surface 172 are arranged facing away from each other along the height direction (Z-axis direction) of the speaker 100. The limiting protrusion 17 is provided with a groove 173. The groove 173 is recessed in the first surface 171 and extends through both surfaces of the limiting protrusion 17 along its length direction.

[0139] The limiting protrusion 17 is also provided with a sound guide groove 16. The sound guide groove 16 is recessed in the second surface 172 of the limiting protrusion 17. The sound guide groove 16 penetrates both surfaces of the limiting protrusion 17 in the width direction. The opening of the sound guide groove 16 is located on the limiting protrusion 17.

[0140] The limiting protrusion 17 is connected to the side plate 12. Specifically, the limiting protrusion 17 is located in the through opening 1121. Part of the side plate 12 extends into the groove 173. The sound guide groove 16 communicates with the through groove 14. Along the length direction (Y-axis direction) of the speaker 100, the opposite ends of the limiting protrusion 17 are respectively connected to the ends of the first segment 153 away from the third segment 155 and the ends of the second segment 154 away from the third segment 155. In this embodiment, the limiting protrusion 17 is formed by stretching the side plate 12 with plastic. That is, the limiting protrusion 17 is made of plastic, and the limiting protrusion 17 and the side plate 12 are integrally formed.

[0141] It should be noted that, Figure 10The limiting portion 15 and the limiting protrusion 17 are only used to illustrate the structure of the limiting portion 15 and the limiting protrusion 17, and do not constitute a limitation on the specific dimensions of the limiting portion 15 and the limiting protrusion 17. In order to reduce the space occupied by the limiting portion 15 and the limiting protrusion 17 in the rear cavity, the limiting portion 15 and the limiting protrusion 17 can be set as small as possible, as long as the limiting portion 15 and the limiting protrusion 17 can limit the core 40.

[0142] Please refer to the following: Figure 10 , Figure 11 and Figure 12 , Figure 12 for Figure 10 The diagram shows a partial cross-sectional view of the speaker 100 assembled with the middle frame 550. In this embodiment, the relative positional relationship between the core 40 and the bottom shell 10 can be referred to in the first embodiment described above, and will not be elaborated further here.

[0143] Along the length direction (X-axis direction) of the loudspeaker 100, the limiting protrusion 17 is located on one side of the frame 41. The limiting portion 15 is located on the periphery of the frame 41. The limiting portion 15 and the limiting protrusion 17 contact the periphery of the frame 41. Specifically, along the length direction (Y-axis direction) of the loudspeaker 100, the first segment 153 and the second segment 154 of the limiting portion 15 are located at opposite ends of the core 40. Along the length direction (Y-axis direction) of the loudspeaker 100, the first segment 153 and the second segment 154 limit the core 40; that is, they prevent the core 40 from moving in the width direction (X-axis direction) of the loudspeaker 100. Along the length direction (Y-axis direction) of the loudspeaker 100, the third segment 155 of the limiting portion 15 and the limiting protrusion 17 are located on opposite sides of the core 40. Along the length direction (X-axis direction) of the speaker 100, the third segment 155 and the limiting protrusion 17 limit the core 40 to prevent the core from moving along the length direction (X-axis direction) of the speaker 100.

[0144] It should be noted that there may be a certain gap between the limiting part 15 and the peripheral side surface of the basin frame 41, and this gap is within the assembly tolerance range; there may also be a certain gap between the limiting protrusion 17 and the peripheral side surface of the basin frame 41, and this gap is within the assembly tolerance range, so as to facilitate the installation of the basin frame 41 between the limiting part 15 and the limiting protrusion 17. The gap between the limiting part 15 and the peripheral side surface of the basin frame 41 does not affect the limiting function of the limiting part 15 in limiting the basin frame 41. The gap between the limiting protrusion 17 and the peripheral side surface of the basin frame 41 does not affect the limiting function of the limiting protrusion 17 in limiting the basin frame 41.

[0145] In this embodiment, the core 40 is bonded to the base plate 11. Specifically, the frame 41 of the core 40 is bonded to the inner surface 111 of the base plate 11.

[0146] In this embodiment, along the height direction (Z-axis direction) of the housing 30, the top plate 20 is connected to the side plate 12 away from the bottom plate 11. The top plate 20 covers the receiving cavity 13. That is, the top plate 20 covers the side of the bottom shell 10 facing away from the through groove 14. The top plate 20, bottom shell 10, core 40, limiting part 15, and limiting protrusion 17 together form the rear cavity. In this embodiment, the basin frame 41 of the core 40 is welded to the top plate 20. In other embodiments, the basin frame 41 and the top plate 20 can also be bonded together.

[0147] Please continue reading. Figure 12 In this embodiment, the relative positional relationship between the speaker 100 and the first housing 510 can be referred to the first embodiment described above. Further details will not be elaborated upon here.

[0148] The first sealing section 210 of the seal 200 is mounted on the outer surface 112 of the base plate 11. The first sealing section 210 is disposed along the edge of the through groove 14 of the bottom shell 10. The first sealing section 210 seals and connects the base plate 11 and the middle plate 552 of the bottom shell 10. Specifically, the first sealing section 210 seals and connects the base plate 11 of the bottom shell 10 and the bottom wall 5561 of the recess 556. Along the width direction (Y-axis direction) of the terminal device 1000, the first sub-sealing section 211 is located on one side of the core 40; along the length direction (X-axis direction) of the terminal device 1000, the second sub-sealing section 212 and the third sub-sealing section 213 are located at opposite ends of the core 40, respectively. The second sealing section 220 is mounted on the limiting protrusion 17. The second sealing section 220 is disposed along the outer periphery of the groove opening of the sound guide groove 16. The second sealing section 220 seals and connects the limiting protrusion 17 and the frame 551. Specifically, the second sealing section 220 is mounted on the sidewall of the recess 556 formed by the frame 551. Along the thickness direction (Z-axis direction) of the terminal device 1000, the core 40 is located on the side of the base plate 11 facing away from the middle plate 552. The diaphragm 42 of the core 40 faces the mounting groove 558 of the middle frame 550.

[0149] Along the thickness direction (Z-axis direction) of the terminal device 1000, the orthographic projection of the core 40 on the first surface 553 of the middle plate 552 at least partially overlaps with the orthographic projection of the first sealing section 210 on the first surface 553 of the middle plate 552. The relative positional relationship between the first sealing section 210 and the core 40 can be referred to the first embodiment described above. Further details are omitted here.

[0150] In this embodiment, the relative positional relationship between the kernel 40 and the display screen 400 can be referred to the first embodiment described above. Further details will not be elaborated upon here.

[0151] Along the thickness direction (Z-axis direction) of the terminal device 1000, the bottom plate 11 of the bottom shell 10, the first sealing section 210 of the seal 200, and the bottom wall 5561 of the recess 556 are located between the core 40 and the first part 410 of the display screen 400. It can be understood that, along the thickness direction of the terminal device 1000, the distance between the core 40 and the first part 410 of the display screen 400 is equal to the sum of the thicknesses of the bottom plate 11 of the bottom shell 10, the first sealing section 210, and the bottom wall 5561 of the recess 556 (allowing for certain process tolerances). The core 40, the bottom plate 11 of the bottom shell 10, the first sealing section 210, the bottom wall 5561 of the recess 556, and the first part 410 of the display screen 400 form a front cavity. It can be understood that the core 40, the bottom plate 11 of the bottom shell 10, the first sealing section 210, the middle plate 552, and the first part 410 of the display screen 400 form a front cavity. The sound guide groove 16 communicates with the front cavity.

[0152] In other embodiments, the middle frame 550 may not have a recessed groove 556. Along the thickness direction (Z-axis direction) of the terminal device 1000, the bottom plate 11 of the bottom shell 10, the first sealing section 210 of the seal 200, and the middle plate 552 of the middle frame 550 are located between the core 40 and the first portion 410 of the display screen 400. The core 40, the bottom plate 11 of the bottom shell 10, the first sealing section 210, the middle plate 552 of the middle frame 550, and the first portion 410 of the display screen 400 form a front cavity. The sound guide groove 16 communicates with the front cavity.

[0153] The middle frame 550 may not have a mounting slot 558. Along the thickness direction (Z-axis direction) of the terminal device 1000, the bottom plate 11 of the bottom shell 10 and the first sealing section 210 of the seal 200 are located between the core 40 and the middle plate 552. The core 40, the bottom plate 11 of the bottom shell 10, the first sealing section 210, and the middle plate 552 of the middle frame 550 form the front cavity. The sound guide groove 16 communicates with the front cavity.

[0154] It is understandable that by placing the first sealing segment 210 between the bottom shell 10 and the middle plate 552, and ensuring that the orthographic projection of the first sealing segment 210 and the core 40 on the first surface 553 of the middle plate 552 at least partially overlaps, the first sealing segment 210 can avoid occupying excessive space in the length or width direction of the speaker 100, thereby preventing the speaker 100 from having a large length or width dimension. Specifically, the first sub-sealing segment 211 of the first sealing segment 210 of the seal 200 at least partially overlaps with the orthographic projection of the core 40 on the first surface 553 of the middle plate 552, which can save the width dimension (X-axis direction) of the speaker 100, and thus save the length dimension (X-axis direction) of the middle frame 550 occupied by the speaker 100. The second sub-seal section 212 and / or the third sub-seal section 213 of the first sealing section 210 of the seal 200 at least partially overlap with the orthographic projection of the core 40 on the first surface 553 of the middle plate 552, which can save the length (X-axis direction) dimension of the speaker 100, and thus save the width (Y-axis direction) dimension of the middle frame 550 occupied by the speaker 100.

[0155] Furthermore, in this embodiment, the limiting portion 15 is a continuous structure, and both the limiting portion 15 and the limiting protrusion 17 are made of plastic. Both the limiting portion 15 and the limiting protrusion 17 are integrally formed with the bottom shell 10, which facilitates the formation of the limiting portion 15 and the limiting protrusion 17 by stretching the plastic from the bottom shell 10. Therefore, the manufacturing process of the limiting portion 15 and the limiting protrusion 17 is simple, reducing the processing difficulty of the bottom shell 10 and thus reducing the processing cost of the speaker 100.

[0156] It should be noted that when the battery 300, camera module, antenna assembly, speaker 100 and seal 200 are all located in the second chamber, the assembly structure of the battery 300, camera module, antenna assembly, speaker 100 and seal 200 with the middle frame 550 of the second housing 520 can also refer to the assembly structure with the middle frame 550 of the first housing 510 described above.

[0157] Please see Figure 13 , Figure 13 for Figure 3 A partial cross-sectional view of the third embodiment of the speaker 100 of the terminal device 1000 shown, assembled with the middle frame 550. This application provides a third embodiment of the speaker 100. The distinguishing feature of this embodiment compared to any of the above embodiments is that the bottom shell 10 includes an expansion cavity 18.

[0158] In this embodiment, the bottom shell 10 includes an expansion cavity 18. Along the width direction (Y-axis direction) of the speaker 100, the expansion cavity 18 is located on one side of the receiving cavity 13 and communicates with the receiving cavity 13. Along the height direction (Z-axis direction) of the speaker 100, the expansion cavity 18 is located on the side of the bottom shell 10 away from the bottom plate 11, and the expansion cavity 18 is spaced apart from the bottom plate 11.

[0159] Please continue reading. Figure 13 In this embodiment, the connection method between the core 40 and the speaker 100 can refer to the first embodiment described above. The relative positional relationship between the receiving cavity 13, the sealing member 200, and the middle frame 550 of the speaker 100 can also refer to the first embodiment described above. Further details will not be elaborated here.

[0160] In this embodiment, the expansion cavity 18 of the loudspeaker 100 is located at one end of the first surface 553 of the designated slot sidewall facing away from the middle plate 552, and the bottom wall of the expansion cavity 18 overlaps with the designated slot sidewall.

[0161] It is understood that by including an expansion cavity 18 in the bottom shell 10 of the speaker 100, and having the expansion cavity 18 communicate with the receiving cavity 13, the rear cavity space of the speaker 100 can be increased, thereby improving the low-frequency performance of the speaker 100. Simultaneously, the expansion cavity 18 is located outside the receiving slot 555, and does not encroach on the space of the receiving slot 555. Therefore, the receiving slot 555 can be ensured to have a large space, thereby ensuring the volume of the battery 300 and the battery life of the terminal device 1000.

[0162] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A terminal device, characterized in that, The device includes a mid-plate, a speaker, a seal, and a display screen. The speaker includes a bottom shell and a core. The bottom shell has a receiving cavity, which includes a bottom wall and a peripheral wall surrounding the bottom wall. The bottom wall has a through groove that penetrates the bottom wall and communicates with the receiving cavity. The core includes a frame and a diaphragm, and the diaphragm is connected to the frame. The core is located inside the receiving cavity, the core blocks the through groove, the frame is supported on the bottom wall of the cavity, and the diaphragm is exposed in the through groove; The bottom shell is connected to the middle plate. Along the thickness direction of the terminal device, the through groove faces the middle plate. The sealing element includes a first sealing section located outside the through groove. The first sealing section is arranged along the edge of the through groove. The first sealing section seals and connects the bottom wall of the cavity and the middle plate. Along the thickness direction of the terminal device, the orthographic projection of the core on the middle plate at least partially overlaps with the orthographic projection of the first sealing section on the middle plate. Along the thickness direction of the terminal device, the display screen is connected to the side of the middle plate facing away from the speaker, a front cavity is formed between the core and the display screen, and the through slot forms part of the front cavity.

2. The terminal device according to claim 1, characterized in that, The first sealing section includes a first sub-sealing section, a second sub-sealing section, and a third sub-sealing section, wherein the second sub-sealing section and the third sub-sealing section are connected to opposite ends of the first sub-sealing section; Along the length direction of the terminal device, the first sub-sealing segment is located on one side of the core; along the width direction of the terminal device, the second sub-sealing segment and the third sub-sealing segment are located at opposite ends of the core, respectively. Along the thickness direction of the terminal device, the orthographic projection of the first sub-sealing segment on the middle plate is located within the orthographic projection of the core; And / or, Along the thickness direction of the terminal device, the orthographic projection of the second sub-sealing segment on the middle plate lies within the orthographic projection of the core; And / or, Along the thickness direction of the terminal device, the orthographic projection of the third sub-sealing segment on the middle plate lies within the orthographic projection of the core.

3. The terminal device according to claim 1, characterized in that, The cavity bottom wall includes an inner surface and an outer surface disposed opposite to the inner surface; The speaker also includes a limiting part and a limiting protrusion, both of which protrude from the inner surface and are arranged around the through groove. The limiting part and the limiting protrusion together limit the core, and both the limiting part and the limiting protrusion are integrally formed with the bottom shell.

4. The terminal device according to claim 3, characterized in that, The limiting part includes a first segment, a second segment, and a third segment, all of which protrude from the inner surface. The second segment and the third segment are respectively connected to the opposite ends of the first segment. Along the width direction of the terminal device, the second segment and the third segment are located at opposite ends of the core. Along the length direction of the terminal device, the first segment and the limiting protrusion are located on opposite sides of the core. The opposite ends of the limiting protrusion are respectively connected to the ends of the second segment away from the first segment and the ends of the third segment away from the first segment. The first segment, the second segment, the third segment, and the limiting protrusion are all made of plastic, and the first segment, the second segment, the third segment, and the limiting protrusion are integrally formed.

5. The terminal device according to claim 4, characterized in that, The cavity peripheral wall is provided with a through opening, which passes through the connection between the cavity bottom wall and the cavity peripheral wall, and the through opening communicates with the through groove; The limiting protrusion includes a first surface and a second surface disposed opposite to the first surface. The limiting protrusion is provided with a groove and a sound guide groove. The groove is recessed in the first surface, and the sound guide groove is recessed in the second surface. The limiting protrusion is located at the through opening, a portion of the cavity peripheral wall extends into the groove, and the sound guide groove communicates with the through groove.

6. The terminal device according to claim 3, characterized in that, The cavity bottom wall is provided with a sound guide groove, which is formed by the outer surface of the cavity being recessed into the inner surface, and the limiting protrusion is formed on the inner surface. The sound guide groove is connected to the through groove. The limiting part includes multiple limiting bodies, each of which protrudes from the inner surface. The multiple limiting bodies and the limiting protrusions are arranged at intervals around the through groove, and the multiple limiting bodies and the limiting protrusions jointly contact the peripheral side surface of the basin frame. The bottom shell, the plurality of limiting bodies, and the limiting protrusions are all made of metal, and the plurality of limiting bodies and the limiting protrusions are all formed by stamping the bottom shell.

7. The terminal device according to claim 5 or 6, characterized in that, The middle plate includes a receiving groove for accommodating a battery. The receiving groove includes a designated groove sidewall. Along the length direction of the terminal device, the designated groove sidewall is the groove sidewall of the receiving groove that is closest to the speaker. The bottom shell includes an expansion cavity. Along the thickness direction of the terminal device, the expansion cavity is located at one end of the second surface of the designated slot sidewall facing away from the middle plate, and the bottom wall of the expansion cavity overlaps with the designated slot sidewall.

8. The terminal device according to claim 6, characterized in that, The terminal device also includes a frame, the frame having a sound outlet hole that penetrates through the frame; The bottom shell is connected to the frame, and the sound guide groove connects the through groove and the sound outlet hole; The seal further includes a second sealing section, which is disposed along the edge of the groove of the sound guide groove. The second sealing section seals and connects the bottom shell and the frame. The opposite ends of the second sealing section are connected to the opposite ends of the first sealing section.

9. The terminal device according to claim 3, characterized in that, The speaker also includes a top plate, which covers the bottom shell on the side facing away from the through groove along the thickness direction of the terminal device; The top plate, the bottom shell, the core, the limiting part, and the limiting protrusion together form the rear cavity.

10. The terminal device according to claim 9, characterized in that, The middle plate is provided with a mounting groove that penetrates the middle plate; The diaphragm of the core faces the mounting groove, the display screen covers the mounting groove, and the diaphragm of the core and the display screen are spaced apart and opposite each other along the thickness direction of the terminal device; The core, the groove wall of the through slot, the first sealing section, the groove wall of the mounting slot, and the display screen together form the front cavity.

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