Electronic equipment

Abstract

The present application discloses an electronic device, the electronic device including an instrument case and a speech module, the instrument case including a first case part and a second case part, the first case part being movably mounted in the second case part, thereby switching the electronic device between a first state and a second state, the speech module being mounted in one of the first case part and the second case part, the speech module being provided with a first rear cavity and a first connection hole communicating with the first rear cavity, the electronic device being capable of forming a second rear cavity, in the first state, the first rear cavity being connected to the second rear cavity via the first connection hole, and in the second state, the first connection hole being closed, one of the first state and the second state being an expanded state, and the other being a contracted state.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This invention claims priority to a Chinese patent application filed at the China Patent Office on April 26, 2021, bearing application number 202110451686.6 and titled "Electronic Device", the entire contents of which are incorporated herein by reference. The present application relates to the technical field of communication devices, and in particular to electronic devices. [Background technology]

[0002] With the development of communication technology and the improvement of user demand, stretchable electronic devices will become the future development trend, and the future development trend of electronic devices will be to become thinner and thinner, the internal space layout of electronic devices will become more and more compact, the volume of the rear cavity of the speech module will be limited by the internal space of the electronic device, and the available space of the rear cavity of the speech module will also be smaller and smaller, and the audio performance of the speech module will depend on the volume of the rear cavity, and the smaller and smaller volume of the rear cavity will result in poor audio performance of the electronic device. Summary of the Invention [Problem to be solved by the invention]

[0003] The present application discloses an electronic device to address the problem of relatively poor audio performance of electronic devices. [Means for solving the problem]

[0004] In order to solve the above problems, the present application adopts the following technical solutions.

[0005] An electronic device comprising: an equipment case and a speech module, the equipment case comprising a first case portion and a second case portion, the first case portion being movably mounted in the second case portion, thereby switching the electronic device between a first state and a second state, the speech module being mounted in one of the first case portion and the second case portion, the speech module being provided with a first rear cavity and a first connection hole communicating with the first rear cavity, and a second rear cavity being formed in the electronic device, wherein: In the first state, the first rear cavity communicates with the second rear cavity via the first connecting hole, and in the second state, the first connecting hole is closed; One of the first state and the second state is a deployed state, and the other is a contracted state. Effect of the Invention

[0006] The technical solution adopted in this application can achieve the following beneficial effects:

[0007] When the electronic device of the present application is adopted, the speech module has a first rear cavity, and the electronic device can further have a second rear cavity formed therein, making full use of the internal space of the electronic device, and when the electronic device is in an expanded or contracted state, the first rear cavity communicates with the second rear cavity, increasing the volume of the rear cavity of the speech module, improving the sound performance, and making the sound more mellow and rich.

[0008] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application, and the illustrative embodiments and the description thereof are intended to interpret the present application and are not to be construed as undue limitations on the present application. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a contraction state diagram of the electronic device of the present application. [Diagram 2] FIG. 2 is a partial exploded view of the electronic device of the present application in an unfolded state. [Diagram 3] FIG. 2 is an exploded view of the electronic device of the present application in an unfolded state. [Figure 4] FIG. 2 is a partial cross-sectional view of the electronic device of the present application. [Diagram 5] FIG. 2 is a structural schematic diagram of the speech module and cavity of the present application. [Figure 6] FIG. 2 is an exploded view of another embodiment of the electronic device of the present application. [Figure 7] FIG. 2 is a partial exploded view of the electronic device of the present application. [Figure 8] FIG. 2 is a partial exploded view of the electronic device of the present application. [Figure 9] FIG. 2 is a structural schematic diagram of the first case of the present application. [Figure 10] 10 is a cross-sectional view taken along the direction BB in FIG. 9 in an unfolded state of the electronic device of the present application. [Figure 11] 10 is a cross-sectional view taken along the direction AA in FIG. 9 in an unfolded state of the electronic device of the present application. [Figure 12] 10 is a cross-sectional view taken along the BB direction in FIG. 9 of the electronic device of the present application in a contracted state. [Figure 13] 10 is a cross-sectional view taken along the direction AA in FIG. 9 in a contracted state of the electronic device of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] In order to make the purpose, technical solution and advantages of the present application clearer, the following clearly and completely describes the technical solution of the present application in conjunction with specific embodiments and relevant drawings of the present application. Obviously, the described embodiments are only some embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort are within the scope of protection of the present application.

[0011] The technical solutions disclosed in the embodiments of the present application will be described in detail below in conjunction with the drawings.

[0012] As shown in FIG. 1-13 , the present application provides an electronic device, which includes an electronic device case 100 and a speech module 300 .

[0013] The device case 100 is a basic component of the electronic device, and the device case 100 can provide a mounting base for other components of the electronic device, and the device case 100 includes a first case part 110 and a second case part 120, and the first case part 110 is movably mounted to the second case part 120, thereby switching the electronic device between a first state and a second state.

[0014] One of the first state and the second state is an expanded state, and the other is a contracted state. When the first case part 110 and the second case part 120 are relatively separated from each other, the electronic device can be in the expanded state, and when the first case part 110 and the second case part 120 are relatively close to each other, the electronic device can be in the contracted state.

[0015] The speech module 300 may be a receiver module, a speaker module, or of course other devices capable of producing speech, and the embodiments of the present application do not limit the specific type of the speech module 300, and the speech module 300 is provided in one of the first case part 110 and the second case part 120.

[0016] The speech module 300 is provided with a first rear cavity 310 and a first connecting hole 320 communicating with the first rear cavity 310, and a second rear cavity 410 can be formed in the electronic device, where in a first state, the first rear cavity 310 communicates with the second rear cavity 410 through the first connecting hole 320, and the first rear cavity 310 and the second rear cavity 410 jointly form the rear cavity of the speech module 300 after communicating, thereby increasing the volume of the rear cavity of the speech module 300 and improving the sound performance of the speech module 300; in a second state, the first connecting hole 320 is closed, and only the first rear cavity 310 forms the rear cavity of the speech module 300.

[0017] In the second state, the first connection hole 320 may be blocked by a blocking cover plate for specifically blocking the first connection hole 320, or may be blocked by other functional devices 800 of the electronic device, and the blocking manner may be various, and the present application is not limited thereto.

[0018] When the electronic device of the present application is adopted, the speech module 300 is provided with a first rear cavity 310, and the electronic device can further form a second rear cavity 410, making full use of the internal space of the electronic device, and when the electronic device is in an expanded or contracted state, the first rear cavity 310 communicates with the second rear cavity 410, increasing the volume of the rear cavity of the speech module 300, improving the sound performance, and making the sound more mellow and rich.

[0019] In an embodiment of the present application, the electronic device further includes a flexible screen 200, and the flexible screen 200 is provided in the device case 100. Specifically, a first end of the flexible screen 200 is connected to the first case part 110, and a second end of the flexible screen 200 is connected to the second case part 120. The first end of the flexible screen 200 can be moved according to the movement of the first case part 110, and the second end of the flexible screen 200 can be moved according to the movement of the second case part 120. When the first case part 110 moves relative to the second case part 120, the first end of the flexible screen 200 also moves relative to the second end of the flexible screen 200, thereby changing the display area between the first end and the second end of the flexible screen 200. When the electronic device has a relatively large display area, it can give the user a better visual experience. When the electronic device has a relatively small display area, it is easy to carry the electronic device.

[0020] A first end of the flexible screen 200 can be stored in the first case part 110 or extend from the first case part 110, and / or a second end of the flexible screen 200 can be stored in the second case part 120 or extend from the second case part 120, and the storing and extending manners are various and are not limited thereto by this application.

[0021] Specifically, the flexible screen 200 has a first region and a second region connected to the first region.

[0022] Here, in the unfolded state, at least a portion of the first area and the second area is exposed to the electronic device, and at this time, the electronic device has a relatively large display area, and the first rear cavity 310 is connected to the second rear cavity 410 through the first connecting hole 320, and the second rear cavity 410 and the first rear cavity 310 jointly form the rear cavity of the speech module 300 after being connected, so as to fully utilize the internal space of the electronic device, increase the volume of the rear cavity of the speech module 300, and improve the sound performance of the speech module 300.

[0023] In the contracted state, the first area is exposed to the electronic device, and the second area is stored in the device case 100, at which time the electronic device has a relatively small display area, and the first connection hole 320 is blocked.

[0024] In this embodiment, in the unfolded state, the electronic device has a relatively large display area, which provides the user with a good visual experience; at this time, the second rear cavity 410 and the first rear cavity 310 jointly form the rear cavity of the speech module 300 after communicating with each other, thereby increasing the volume of the rear cavity of the speech module 300, improving the audio performance of the speech module 300, and providing the user with a good hearing experience.

[0025] When the electronic device has a relatively large display area, it may be used as a tablet computer type, and the requirements for audio performance are relatively high. In this case, the second rear cavity 410 and the first rear cavity 310 jointly form the rear cavity of the speech module 300 after communicating with each other, thereby increasing the volume of the rear cavity of the speech module 300, improving the audio performance of the speech module 300, and meeting the requirements for audio performance of the electronic device with a relatively large display area.

[0026] In an embodiment of the present application, the electronic device includes a cavity 400, which is provided with a second rear cavity 410 and a second connecting hole 420 communicating with the second rear cavity 410, the speech module 300 is provided with a first rear cavity 310 and a first connecting hole 320 communicating with the first rear cavity 310, one of the speech module 300 and the cavity 400 is provided in the first case part 110 and the other is provided in the second case part 120, and the speech module 300 and the cavity 400 are relatively slidable in accordance with the relative movement between the first case part 110 and the second case part 120.

[0027] Here, in the first state, the first connecting hole 320 is hermetically butted with the second connecting hole 420, and the first rear cavity 310 communicates with the second rear cavity 410 through the hermetically butted first connecting hole 320 and the second connecting hole 420. After the second rear cavity 410 and the first rear cavity 310 communicate with each other, they jointly form the rear cavity of the speech module 300, making full use of the internal space of the electronic device, and increasing the volume of the rear cavity of the speech module 300 after the second rear cavity 410 and the first rear cavity 310 communicate with each other, thereby improving the sound performance of the speech module 300.

[0028] In the second state, the first connecting hole 320 is offset from the second connecting hole 420, and the cavity 400 blocks the first connecting hole 320; for example, in the second state, the side wall of the cavity 400 moves until it is directly opposite the first connecting hole 320, blocking the first connecting hole 320, and the first rear cavity 310 becomes the rear cavity of the speech module 300 alone.

[0029] In this embodiment, in a first state, the cavity 400 not only connects the second rear cavity 410 and the first rear cavity 310 through the second connecting hole 420, thereby enlarging the rear cavity of the speech module 300, but also in a second state, the cavity 400 blocks the first connecting hole 320, thereby providing a sealing effect for the first rear cavity 310, so that the first rear cavity 310 can serve solely as the rear cavity of the speech module 300.

[0030] In the above embodiment, one of the speech module 300 and the cavity 400 is provided with a first positioning structure 430 and a second positioning structure 440 spaced apart from each other, and the other is provided with a third positioning structure 330, where in the first state, the first positioning structure 430 is positioned and engaged with the third positioning structure 330, and after the first positioning structure 430 is positioned and engaged with the third positioning structure 330, the speech module 300 and the cavity 400 are relatively fixed to align the first connecting hole 320 with the second connecting hole 420, thereby forming a second rear cavity 410 and a first rear cavity 330. 10, in the second state, the second positioning structure 440 is positioned and fitted with the third positioning structure 330, and after the second positioning structure 440 is positioned and fitted with the third positioning structure 330, the speech module 300 and the cavity 400 are relatively fixed, and the first connecting hole 320 is aligned with the cavity 400, for example, aligned with the side wall of the cavity 400, and the cavity 400 blocks the first connecting hole of the first rear cavity 310 and plays a sealing role on the first rear cavity 310, so that the first rear cavity 310 is solely the rear cavity of the speech module 300. The positioning structure can position the speech module 300 and the cavity 400 and prevent relative sliding when the first rear cavity 310 and the second rear cavity 410 communicate with each other and when the first connecting hole 320 is blocked.

[0031] The positioning structures may vary, for example, recessed and raised positioning structures, magnetic attraction positioning structures, and the like.

[0032] The embodiments of the present application take the protrusion-recess positioning structure as an example, in which the first positioning structure 430 and the second positioning structure 440 are both positioning protrusions, and the third positioning structure 330 is a positioning groove, or the first positioning structure 430 and the second positioning structure 440 are positioning grooves, and the third positioning structure 330 is a positioning protrusion. When the speech module 300 and the cavity 400 slide relatively to a set position, the positioning protrusion enters the positioning groove, thereby realizing the positioning of the speech module 300 and the cavity 400.

[0033] The speech module 300 is fixed to one of the first case part 110 and the second case part 120, and the cavity 400 is movably provided in the other of the first case part 110 and the second case part 120, and the electronic device includes a first elastic member 610, which is connected between the cavity 400 and the first case part 110 or the second case part 120, and the first elastic member 610 drives the cavity 400 to move toward the speech module 300. The first elastic member 610 may be an elastic member such as an elastic piece, a spring, or a cushion.

[0034] The first elastic member 610 is provided to better bond the cavity 400 to the speech module 300, and the second rear cavity 410 and the first rear cavity 310 can be easily connected in the first state. The cavity 400 closes the first connecting hole 320 in the second state, and the first elastic member 610 is provided to facilitate the positioning and fitting by the concave and convex between the positioning structures. Since the cavity 400 and the speech module 300 slide relative to each other, when switching between the two states, the positioning protrusion needs to slide out of one positioning groove and slide into another positioning groove, so the cavity 400 needs to have a certain amount of movement in the protrusion protrusion direction, and the first elastic member 610 can be provided to allow the cavity 400 to have a certain amount of movement in the protrusion protrusion direction. When the positioning protrusion needs to slide out of the positioning groove, the cavity 400 presses the first elastic member 610 and moves relatively away from the speech module 300 in the protruding direction of the positioning protrusion; after the positioning protrusion slides into the positioning groove, the first elastic member 610 presses the cavity 400 and drives the cavity 400 to move toward the speech module 300, so that the cavity 400 and the speech module 300 fit better together.

[0035] Further, in this embodiment, the cavity 400 is provided with a guide protrusion 121, and the first case part 110 or the second case part 120 is provided with a guide groove 450, and the guide protrusion 121 is guided and fitted into the guide groove 450; or the cavity 400 is provided with a guide groove 450, and the first case part 110 or the second case part 120 is provided with a guide protrusion 121, and the guide protrusion 121 is guided and fitted into the guide groove 450. By installing the guide protrusion 121 and the guide groove 450, when the positioning protrusion slides into or out of the positioning groove, the cavity 400 can be better guided to move a certain distance in the protruding direction of the positioning protrusion relative to the speech module 300, and the cavity 4 By fitting the speech module 300 and the first case part 110 or the second case part 120 in a positionally restricted manner in the movement direction of the first case part 110, it is possible to ensure that the cavity 400 and the first case part 110 or the second case part 120 move synchronously in the movement direction of the first case part 110, to avoid relative movement between the cavity 400 and the first case part 110 or the second case part 120 in the movement direction of the first case part 110 due to frictional force between the speech module 300 and the cavity 400, and to ensure that the first connecting hole 320 of the first rear cavity 310 and the second connecting hole 420 of the second rear cavity 410 are exactly aligned every time the first case part 110 and the second case part 120 move relatively to the first state.

[0036] In an embodiment of the present application, the electronic device includes a first rear cavity part 710 and a second rear cavity part 720, and the first rear cavity part 710, the second rear cavity part 720 and the speech module 300 are all provided in one of the first case part 110 and the second case part 120, and a functional device 800 is provided in the other of the first case part 110 and the second case part 120, and for example, the functional device 800 may be a functional device such as a circuit board or a battery.

[0037] In this embodiment, in the deployed state, at least the first rear cavity part 710 and the second rear cavity part 720 may be surrounded to form the second rear cavity 410, the first rear cavity part 710 and the second rear cavity part 720 may be surrounded to form the second rear cavity 410, the first rear cavity part 710, the second rear cavity part 720 and other structures may be surrounded to form the second rear cavity 410, and at least one of the first rear cavity part 710 and the second rear cavity part 720 may be formed with a second connecting hole 420, specifically, the first rear cavity part 710 may be formed with a second connecting hole 420, and the second rear cavity part 720 may be formed with a second connecting hole 420. Or the first rear cavity part 710 and the second rear cavity part 720 are both provided with half holes, and the two half holes can be fitted together to form a second connecting hole 420, and the second connecting hole 420 communicates with the second rear cavity 410, and the first rear cavity 310 communicates with the second rear cavity 410 through the sealed butt of the first connecting hole 320 and the second connecting hole 420, and the second rear cavity 410 and the first rear cavity 310 jointly form the rear cavity of the speech module 300 after communicating, so as to fully utilize the internal space of the electronic device, and increase the volume of the rear cavity of the speech module 300 after the second rear cavity 410 and the first rear cavity 310 communicate with each other, thereby improving the sound performance of the speech module 300.

[0038] In this embodiment, in the contracted state, the functional device 800 moves to between the first rear cavity part 710 and the second rear cavity part 720, and the functional device 800 blocks the first connection hole 320. The first rear cavity part 710 and the second rear cavity part 720 provide an installation space for the functional device 800, and the space between the first rear cavity part 710 and the second rear cavity part 720 is fully utilized to arrange the functional device 800 of the electronic device, and the functional device 800 can also block the first connection hole 320, and the functional device 800 can be used for multiple purposes, fulfilling the role of the functional device 800 itself, and blocking the first connection hole 320.

[0039] In this embodiment, the space between the first rear cavity part 710 and the second rear cavity part 720 is a heavily used space, and in the first state, the first rear cavity part 710 and the second rear cavity part 720 surround the second rear cavity 410, and increase the volume of the rear cavity of the speech module 300 after the second rear cavity 410 and the first rear cavity 310 communicate with each other, thereby improving the sound performance of the speech module 300. In the second state, the functional device 800 can be accommodated between the first rear cavity part 710 and the second rear cavity part 720, and the space between the first rear cavity part 710 and the second rear cavity part 720 is fully utilized, and the functional device 800 can also block the first connecting hole 320 by being located between the first rear cavity part 710 and the second rear cavity part 720.

[0040] Specifically, the first rear cavity part 710 is movably installed relative to the second rear cavity part 720, and the functional device 800 can move according to the first case part 110 or the second case part 120, where in the deployed state, the first rear cavity part 710 moves to a position where it is abutted against the second rear cavity part 720 to form the second rear cavity 410, and the functional device 800 is located outside the second rear cavity 410, and the second rear cavity 410 and the first rear cavity 310 communicate with each other. and then jointly form the rear cavity of the speech module 300, and increase the volume of the rear cavity of the speech module 300 after the second rear cavity 410 and the first rear cavity 310 are connected to each other, thereby improving the sound performance of the speech module 300; in the contracted state, the functional device 800 moves to between the first rear cavity part 710 and the second rear cavity part 720, and the functional device 800 is close-fitted with the first connecting hole 320, and the first rear cavity part 710 is separated from the second rear cavity part 720.

[0041] In an embodiment of the present application, the electronic device further includes a spacer 900, the spacer 900 is fixed relatively to the functional device 800, the spacer 900 has a tip 910, in an expanded state, the butt portion between the first rear cavity part 710 and the second rear cavity part 720 is located opposite to the tip 910, and in a contracted state, the spacer 900 is supported between the first rear cavity part 710 and the second rear cavity part 720. The spacer 900 can enter the butt portion between the first rear cavity part 710 and the second rear cavity part 720 by the tip 910, and separate the first rear cavity part 710 and the second rear cavity part 720, so that the functional device 800 can be accommodated in the space between the first rear cavity part 710 and the second rear cavity part 720, and in this embodiment, the spacer 900 can be another functional device of the electronic device.

[0042] In this embodiment, the spacer 900 is fixed relative to the functional device 800, the first rear cavity part 710 is provided with a first chamfered surface 711, and the second rear cavity part 720 is provided with a second chamfered surface 721, and in the unfolded state, the first chamfered surface 711 and the second chamfered surface 721 form a guide space, and the end of the spacer 900 or the tip 910 of the spacer 900 protrudes into the guide space formed by the first chamfered surface 711 and the second chamfered surface 721, and the width gradually decreases in the direction away from the spacer 900, and the width is the size of the guide space in the direction where the first rear cavity part 710 and the second rear cavity part 720 are butted together.

[0043] In this embodiment, the first rear cavity part 710 and the second rear cavity part 720 can form a cylindrical cavity 400, and holes are provided at both ends of the cylindrical cavity 400, the hole at the first end can be the second connecting hole 420, the hole at the second end can be where the functional device 800 protrudes, the functional device 800 can protrude into the second end hole and surround it together with the first rear cavity part 710 and the second rear cavity part 720 to become the second rear cavity 410, the functional device 800 can continue to protrude into the first end hole and block the first connecting hole 320, and the functional device 800 and the cylindrical cavity 400 form a fitting manner similar to that of a piston and a piston rod.

[0044] The first rear cavity part 710 and the second rear cavity part 720 can be separated according to the relative movement of the first case part 110 and the second case part 120. At this time, other parts of the electronic device may be accommodated between the first rear cavity part 710 and the second rear cavity part 720, or the first rear cavity part 710 and the second rear cavity part 720 may always abut against each other, and there is no need to install a structure to separate the first rear cavity part 710 and the second rear cavity part 720, making the structure of the electronic device simple and easy to assemble.

[0045] In the above embodiment, a second elastic member 620 may be installed to drive the movement of the first rear cavity part 710, and the second elastic member 620 is installed between the first rear cavity part 710 and the first case part 110 or the second case part 120, and the second elastic member 620 can drive the first rear cavity part 710 to move toward the second rear cavity part 720, thereby making the first rear cavity part 710 abut against the second rear cavity part 720. The second elastic member 620 may be an elastic member such as an elastic piece, a spring, or a cushion.

[0046] Furthermore, a third elastic member 630 may be installed to drive the movement of the second rear cavity part 720, and the third elastic member 630 is installed between the second rear cavity part 720 and the first case part 110 or the second case part 120, and the third elastic member 630 can drive the second rear cavity part 720 to move toward the first rear cavity part 710, thereby causing the second rear cavity part 720 to abut against the first rear cavity part 710. The third elastic member 630 may be an elastic member such as an elastic piece, a spring, or a cushion.

[0047] The above embodiments of the present application have been focused on describing the differences between the embodiments, and the different optimization features of the embodiments can be combined to form a more preferred embodiment, unless there is a contradiction, and for the sake of brevity, will not be described further here.

[0048] The above is only an embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application may be modified and changed in various ways. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of the claims of the present application. [Explanation of symbols]

[0049] 100--device case, 110--first case part, 120--second case part, 121--guide protrusion, 200-Flexible Screen, 300—speech module; 310—first rear cavity; 320—first connecting hole; 330—third positioning structure; 400-cavity, 410-second rear cavity, 420-second connecting hole, 430-first positioning structure, 440-second positioning structure, 450-guiding groove, 610—first elastic member; 620—second elastic member; 630—third elastic member; 710—first rear cavity part; 711—first chamfered surface; 720—second rear cavity part; 721—second chamfered surface; 800-Function Devices, 900-spacer, 910-tip.

Claims

1. An electronic device comprising: an electronic device case (100) and a speech module (300), the electronic device case (100) comprising a first case portion (110) and a second case portion (120), the first case portion (110) being movably mounted in the second case portion (120), thereby switching the electronic device between a first state and a second state, the speech module (300) being mounted in one of the first case portion (110) and the second case portion (120), the speech module (300) being provided with a first rear cavity (310) and a first connection hole (320) communicating with the first rear cavity (310), and a second rear cavity (410) being formed in the electronic device, In the first state, the first rear cavity (310) communicates with the second rear cavity (410) through the first connecting hole (320), and in the second state, the first connecting hole (320) is closed; One of the first state and the second state is an expanded state, and the other is a contracted state; The electronic device further includes a flexible screen (200), a first end of the flexible screen (200) is connected to the first case portion (110) and a second end of the flexible screen (200) is connected to the second case portion (120), and the flexible screen (200) has a first region and a second region connected to the first region; In the unfolded state, at least a portion of the first region and the second region is exposed to the electronic device, and the first rear cavity (310) communicates with the second rear cavity (410) through the first connection hole (320); In the contracted state, the first region is exposed to the electronic device, and the second region is stored within the device case (100), and the first connection hole (320) is blocked.

2. The electronic device includes a cavity (400), the cavity (400) is provided with the second rear cavity (410) and a second connecting hole (420) communicating with the second rear cavity (410); one of the speech module (300) and the cavity (400) is provided in the first case portion (110), and the other is provided in the second case portion (120), and the speech module (300) and the cavity (400) are relatively slidable in association with relative movement between the first case portion (110) and the second case portion (120); In the first state, the first connecting hole (320) is sealed and butted with the second connecting hole (420), and the first rear cavity (310) communicates with the second rear cavity (410) by the sealing butting of the first connecting hole (320) and the second connecting hole (420); 2. The electronic device of claim 1, wherein in the second state, the first connection hole (320) is distributed offset from the second connection hole (420), and the cavity (400) blocks the first connection hole (320).

3. A first positioning structure (430) and a second positioning structure (440) are provided at an interval between the speech module (300) and the cavity (400), and a third positioning structure (330) is provided at the other of the speech module (300) and the cavity (400); In the first state, the first positioning structure (430) is positioned and engaged with the third positioning structure (330); The electronic device of claim 2 , wherein in the second state, the second positioning structure (440) is aligned and mated with the third positioning structure (330).

4. The electronic device of claim 3, wherein the first positioning structure (430) and the second positioning structure (440) are both positioning protrusions and the third positioning structure (330) is a positioning groove, or the first positioning structure (430) and the second positioning structure (440) are positioning grooves and the third positioning structure (330) is a positioning protrusion.

5. The electronic device of claim 4, wherein the speech module (300) is fixed to one of the first case part (110) and the second case part (120), and the cavity (400) is movably provided to the other of the first case part (110) and the second case part (120), and the electronic device includes a first elastic member (610), which is connected between the cavity (400) and the first case part (110) or the second case part (120), and the first elastic member (610) drives the cavity (400) to move toward the speech module (300).

6. The cavity (400) is provided with a guide protrusion (121), the first case part (110) or the second case part (120) is provided with a guide groove (450), and the guide protrusion (121) is guided and fitted into the guide groove (450); or the cavity (400) is provided with a guide groove (450), the first case part (110) or the second case part (120) is provided with a guide protrusion, and the guide protrusion (121) is guided and fitted into the guide groove (450); The electronic device according to claim 5 , wherein the cavity (400) is fitted to the first case portion (110) or the second case portion (120) in a positionally restricted manner in a moving direction of the first case portion (110).

7. The electronic device includes a first rear cavity part (710) and a second rear cavity part (720), the first rear cavity part (710), the second rear cavity part (720) and the speech module (300) are all provided in one of the first case part (110) and the second case part (120), and a functional device (800) is provided in the other of the first case part (110) and the second case part (120); In the deployed state, at least the first rear cavity part (710) and the second rear cavity part (720) surround the second rear cavity (410), at least one of the first rear cavity part (710) and the second rear cavity part (720) is formed with a second connecting hole (420), the second connecting hole (420) communicates with the second rear cavity (410), and the first rear cavity (310) communicates with the second rear cavity (410) by a sealing butt between the first connecting hole (320) and the second connecting hole (420); The electronic device of claim 1 , wherein in the contracted state, the functional device (800) moves between the first rear cavity part (710) and the second rear cavity part (720), and the functional device (800) blocks the first connection hole (320).

8. the first rear cavity part (710) is movably mounted relative to the second rear cavity part (720), and the functional device (800) is movable relative to the first case part (110) or the second case part (120); In the deployed state, the first rear cavity part (710) moves to a position where it is abutted against the second rear cavity part (720) to form the second rear cavity (410), and the functional device (800) is located outside the second rear cavity (410); 8. The electronic device of claim 7, wherein in the contracted state, the functional device (800) moves between the first rear cavity part (710) and the second rear cavity part (720), and the functional device (800) is tightly engaged with the first connection hole (320), and the first rear cavity part (710) is separated from the second rear cavity part (720).

9. 9. The electronic device of claim 8, further comprising a spacer (900), the spacer (900) being fixed relative to the functional device (800), the spacer (900) having a tip (910), in the expanded state, a butt point between the first rear cavity part (710) and the second rear cavity part (720) being positioned opposite the tip (910), and in the contracted state, the spacer (900) being supported between the first rear cavity part (710) and the second rear cavity part (720).

10. 9. The electronic device of claim 8, further comprising a spacer (900), the spacer (900) being fixed relatively to the functional device (800), the first rear cavity part (710) being provided with a first chamfered surface (711), the second rear cavity part (720) being provided with a second chamfered surface (721), and in the unfolded state, the first chamfered surface (711) and the second chamfered surface (721) form a guide space, the guide space having a width that gradually decreases in a direction away from the spacer (900), the width being a size of the guide space in a direction in which the first rear cavity part (710) and the second rear cavity part (720) are butted together.

11. 9. The electronic device of claim 8, wherein a second elastic member (620) is provided between the first rear cavity part (710) and the first case portion (110) or the second case portion (120), and the second elastic member (620) can abut the first rear cavity part (710) against the second rear cavity part (720) by driving the first rear cavity part (710) to move toward the second rear cavity part (720).

12. The electronic device of claim 11, wherein a third elastic member (630) is provided between the second rear cavity part (720) and the first case portion (110) or the second case portion (120), and the third elastic member (630) can drive the second rear cavity part (720) to move toward the first rear cavity part (710), thereby causing the second rear cavity part (720) to abut against the first rear cavity part (710).

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