Electronic device and control method thereof

Abstract

This invention discloses an electronic device and its control method. The disclosed electronic device includes a first housing, a second housing, and a functional module. The first housing is movably disposed on the second housing to allow the electronic device to switch between an unfolded state and a retracted state. The functional module is disposed within at least one of the first housing and the second housing. In the unfolded state, the functional module extends to a first dimension in the moving direction of the first housing to be in a first state. In the retracted state, the functional module shortens to a second dimension in the moving direction to be in a second state. The second dimension is smaller than the first dimension.

Description

Technical Field

[0001] This invention relates to the field of electronic devices, and more particularly to an electronic device and its control method. Background Technology

[0002] As user demands increase, the performance of electronic devices continues to be optimized. Consequently, more and more functional modules are incorporated into these devices, enabling them to perform an ever-expanding range of functions. However, the integration of numerous functional modules into electronic devices leads to increasingly limited internal space.

[0003] In this situation, in order to achieve high integration, only smaller functional modules can be used, which limits the functionality of the modules. Obviously, this will affect the optimization of the corresponding functions of electronic devices. Summary of the Invention

[0004] This invention discloses an electronic device and its control method to solve the problem in related technologies where limited internal space in electronic devices restricts the use of smaller functional modules, thus affecting the optimization of the corresponding functional modules.

[0005] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0006] In a first aspect, this application discloses an electronic device, including a first housing, a second housing, and a functional module. The first housing is movably disposed on the second housing to allow the electronic device to switch between an unfolded state and a retracted state. The functional module is disposed within at least one of the first housing and the second housing.

[0007] In the unfolded state, the functional module extends to a first dimension in the moving direction of the first housing, so that the functional module is in a first state;

[0008] In the retracted state, the functional module shortens to a second size in the moving direction, so that the functional module is in a second state;

[0009] The second dimension is smaller than the first dimension.

[0010] Secondly, this application also discloses a control method for an electronic device, wherein the electronic device is the one described in the first aspect, and the control method includes:

[0011] When the electronic device is in the unfolded state, the functional module is controlled to extend to a first dimension in the moving direction so that the functional module is in the first state;

[0012] When the electronic device is in the retracted state, the functional module is controlled to shorten to the second size in the moving direction so that the functional module is in the second state.

[0013] The technical solution adopted in this invention can achieve the following technical effects:

[0014] The electronic device disclosed in this application, by housing the functional module within at least one of a first housing and a second housing, allows the internal space formed by the first and second housings to increase in the direction of movement when the electronic device is in its unfolded state. This provides more internal space to accommodate the functional module, enabling it to extend to a first dimension in the direction of movement, thereby optimizing its functionality. Conversely, when the electronic device is in its folded state, the internal space formed by the first and second housings decreases in the direction of movement, reducing the space available to accommodate the functional module. This causes the functional module to shorten in the direction of movement, placing it within the reduced internal space, resulting in a more compact electronic device. The ingenuity of this application lies in the fact that the functional module of the electronic device is not only a telescopic module but also fully utilizes the changes in internal space during the switching between the unfolded and folded states of the first and second housings. This allows the functional module to extend by utilizing the increased internal space, thereby optimizing its functionality. This effectively solves the problem in related technologies where limited internal space restricts the use of smaller functional modules, hindering functional optimization. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the electronic device disclosed in the embodiment of the present invention in a folded state;

[0016] Figure 2 This is a schematic diagram of the electronic device disclosed in the embodiment of the present invention in its unfolded state;

[0017] Figure 3 This is a schematic diagram of a partial structure of the first functional module disclosed in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the first functional module disclosed in an embodiment of the present invention from a first perspective;

[0019] Figure 5 This is a schematic diagram of the first functional module disclosed in an embodiment of the present invention from a second perspective;

[0020] Figure 6 This is a schematic diagram of the first functional module of the electrical equipment in the folded state disclosed in an embodiment of the present invention;

[0021] Figure 7 for Figure 3A partial schematic diagram;

[0022] Figure 8 This is a schematic diagram of the structure of the second functional module disclosed in an embodiment of the present invention;

[0023] Figure 9 This is a cross-sectional view of the second functional module disclosed in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100-First shell,

[0026] 200-Second shell,

[0027] 300-Flexible Display Screen

[0028] 400 - Functional module; 410 - Module shell; 411 - First sub-shell; 411a - First top opening; 411b - First side opening; 412 - Second sub-shell; 412a - Second top opening; 420 - Acoustic diaphragm; 421 - First region; 422 - Second region; 430 - Diaphragm support; 440 - Drive mechanism; 450 - Shell portion; 460 - Cover; 470 - Mass block; 471 - First guide rail; 472 - Second guide rail.

[0029] 510 - First electromagnetic coil, 520 - First magnet

[0030] 610-First electromagnetic component, 620-Second magnet, 630-First guide assembly, 631-Third guide rail, 632-First ball bearing,

[0031] 710 - Second electromagnetic component, 720 - Third magnet, 730 - Fourth guide rail, 740 - Second ball bearing,

[0032] 810 - First elastic connector, 820 - Third ball bearing, 830 - Fourth magnet, 840 - Second electromagnetic coil. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0034] The technical solutions disclosed in the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Please refer to Figures 1 to 9This invention discloses an electronic device, including a first housing 100, a second housing 200, and a functional module 400.

[0036] The first housing 100 is movably disposed on the second housing 200 to allow the electronic device to switch between an unfolded state and a retracted state. It should be noted that the unfolded state can be a state in which the first housing 100 is moved outside the second housing 200, and the retracted state can be a state in which at least a portion of one of the first housing 100 and the second housing 200 is retracted into the other.

[0037] The functional module 400 is disposed within at least one of the first housing 100 and the second housing 200. The functional module 400 may be an acoustic module, a vibration feedback module, a heat dissipation module, etc. This application does not impose specific restrictions on the type of functional module 400.

[0038] In the unfolded state, the functional module 400 extends to a first dimension in the moving direction of the first housing 100, so that the functional module 400 is in the first state. In the retracted state, the functional module 400 shortens to a second dimension in the moving direction, so that the functional module 400 is in the second state, the second dimension being smaller than the first dimension.

[0039] It should be noted that in the unfolded state, the movement of the first housing 100 relative to the second housing 200 increases the internal space formed by the first housing 100 and the second housing 200 in the direction of movement, thus providing more internal space to accommodate the functional module 400. The functional module 400 can extend to a first dimension in the direction of movement. In the folded state, the movement of the first housing 100 relative to the second housing 200 decreases the internal space formed by the first housing 100 and the second housing 200 in the direction of movement, thus reducing the space for accommodating the functional module 400. Consequently, the functional module 400 shortens in the direction of movement so that it is located within the reduced internal space. Of course, the functional module 400 is not limited to being disposed within the internal space formed by the first housing 100 and the second housing 200. The functional module 400 can also be disposed outside the first housing 100 and the second housing 200. For example, the functional module 400 can be a retractable solar panel, which can be disposed outside the first housing 100 and the second housing 200.

[0040] The electronic device disclosed in this application discloses that by placing the functional module 400 within at least one of the first housing 100 and the second housing 200, the internal space formed by the first housing 100 and the second housing 200 increases in the direction of movement when the electronic device is in the unfolded state, thereby providing more internal space to accommodate the functional module 400. This allows the functional module 400 to extend to a first dimension in the direction of movement, thereby optimizing the functionality of the functional module. When the electronic device is in the folded state, the internal space formed by the first housing 100 and the second housing 200 decreases in the direction of movement, thereby reducing the space used to accommodate the functional module 400. This causes the functional module 400 to shorten in the direction of movement so that it is located in the reduced internal space, making the electronic device more compact. The ingenuity of this application lies in the fact that the functional module 400 of the electronic device is not only a module with telescopic function, but also makes full use of the changes in internal space during the switching between the first housing 100 and the second housing 200 in the unfolded state and the folded state. This allows the functional module 400 to extend by utilizing the increase in internal space, thereby optimizing the function of the functional module. This can effectively solve the problem in related technologies where electronic devices can only use smaller functional modules due to limited internal space, which affects the optimization of the corresponding functional modules.

[0041] The electronic device may also include a flexible display screen 300, which may be disposed on the first housing 100 and the second housing 200. The flexible display screen 300 may extend and retract as the second housing 200 moves relative to the first housing 100.

[0042] In some cases, the extension or retraction of the functional module 400 in the direction of movement of the first housing 100 can be achieved by a drive mechanism. However, electronic devices have limited space, and the drive mechanism will occupy part of the space of the electronic device, thereby further limiting the specifications of the functional module. To save internal space of the electronic device, optionally, the functional module 400 can be connected to the first housing 100 and the second housing 200 respectively, and the functional module 400 can move with the first housing 100 relative to the second housing 200, and extend or retract between the first size and the second size.

[0043] The electronic device disclosed in this application connects the functional module 400 to the first housing 100 and the second housing 200 respectively. When the first housing 100 moves relative to the second housing 200, the first housing 100 and the second housing 200 drive the functional module 400 to extend or retract. This fully utilizes the relative motion characteristics of the first housing 100 and the second housing 200, thereby avoiding the need for a separate drive mechanism to drive the extension or retraction of the functional module 400. This saves internal space in the electronic device and is conducive to improving the specifications of the functional module 400 and other modules of the electronic device, thereby optimizing the functions of the functional module and other modules of the electronic device.

[0044] In one optional embodiment, the functional module 400 can be an acoustic module. The functional module 400 may include a module shell 410 and an acoustic diaphragm 420. The module shell 410 may be disposed on at least one of the first shell 100 and the second shell 200, and can extend and retract as the first shell 100 moves relative to the second shell 200. The extension and retraction direction of the module shell 410 is consistent with the movement direction. In the unfolded state, the module shell 410 can be elongated, and the acoustic diaphragm 420 can present a first length in the movement direction, and the acoustic diaphragm 420 can form a first acoustic cavity with the module shell 410. In the retracted state, the module shell 410 can be shortened, and the acoustic diaphragm 420 can present a second length in the movement direction, and the acoustic diaphragm 420 can form a second acoustic cavity with the module shell 410. It should be noted that the second length is shorter than the first length, the volume of the first acoustic cavity is larger than the volume of the second acoustic cavity, and the direction of movement can be perpendicular to the vibration direction of the acoustic diaphragm 420. With acoustic diaphragms 420 of different lengths and acoustic cavities of different volumes, the acoustic module can have different sound emission modes.

[0045] The electronic device disclosed in this application configures the functional module 400 as an acoustic module, which includes a module shell 410 and an acoustic diaphragm 420. In the unfolded state, the module shell 410 is elongated, and the acoustic diaphragm 420 has a first length in the direction of movement, forming a first acoustic cavity with the module shell 410. In the retracted state, the module shell 410 is shortened, and the acoustic diaphragm 420 has a second length in the direction of movement, forming a second acoustic cavity with the module shell 410. The acoustic module adjusts the length of the acoustic diaphragm 420 and the volume of the acoustic cavity by moving the first housing 100 and the second housing 200 relative to each other. This allows the acoustic module to have different sound emission modes. When the acoustic diaphragm 420 extends to a first length, and the acoustic diaphragm 420 and the module housing 410 form a first acoustic cavity with a larger volume, the sound emission function of the acoustic module can be optimized. For example, if the first acoustic cavity is the front cavity of the acoustic module, increasing its volume will improve the volume of the acoustic module. Alternatively, if the first acoustic cavity is the rear cavity of the acoustic module, increasing its volume will improve the bass performance of the acoustic module.

[0046] Specifically, the acoustic module may also include a first electromagnetic coil 510 and a first magnet 520. One of the first electromagnetic coil 510 and the first magnet 520 is connected to the acoustic diaphragm 420, and the other is fixedly connected to the module housing 410. When an alternating current is applied to the first electromagnetic coil 510, the first electromagnetic coil 510 and the first magnet 520 are magnetically engaged, so that the one of the first electromagnetic coil 510 and the first magnet 520 connected to the acoustic diaphragm 420 drives the acoustic diaphragm 420 to vibrate, thereby realizing the sound generation function.

[0047] Optionally, the module shell 410 may include a first sub-shell 411 and a second sub-shell 412. The second sub-shell 412 may be fitted over the first sub-shell 411 and may slide relative to the first sub-shell 411 to allow the module shell 410 to extend and retract. The acoustic diaphragm 420 may be disposed on at least one of the first sub-shell 411 and the second sub-shell 412. In the extended state, the second sub-shell 412 moves to extend the module shell 410 to increase the volume of the first acoustic cavity. In the retracted state, the second sub-shell 412 moves to shorten the module shell 410 to reduce the volume of the first acoustic cavity.

[0048] The electronic device disclosed in this application configures the module shell 410 to include a first sub-shell 411 and a second sub-shell 412, so that the second sub-shell 412 can be fitted over the first sub-shell 411, thereby giving the first sub-shell 411 and the second sub-shell 412 fitted portions. This reduces the space occupied by the module shell 410 when the electronic device is in a folded state, which is beneficial to the compact design of the electronic device.

[0049] Optionally, the module housing 410 may include a first electromagnetic component 610, a second magnet 620, and a first guide assembly 630. The first electromagnetic component 610 may be disposed on the second sub-housing 412, the second magnet 620 may be disposed on the first sub-housing 411, and the first guide assembly 630 may be disposed between the first sub-housing 411 and the second sub-housing 412. The magnetic cooperation between the first electromagnetic component 610 and the second magnet 620 allows the second sub-housing 412 to slide relative to the first sub-housing 411, thereby enabling the module housing 410 to extend and retract. The first guide assembly 630 may include a third guide rail 631 and a first ball bearing 632. The third guide rail 631 may be disposed on the first sub-housing 411, the second sub-housing 412 may have a first slide rail, and the first ball bearing may be disposed between the first slide rail and the third guide rail 631 to enable the second sub-housing 412 to slide relative to the first sub-housing 411, thereby reducing friction and alleviating wear on the first sub-housing 411 or the second sub-housing 412.

[0050] Furthermore, there can be two second sub-shells 412, which are slidably disposed at both ends of the first sub-shell 411. The two second sub-shells 412 slide relative to the first sub-shell 411 in a direction away from each other to achieve elongation of the module shell 410. The two second sub-shells 412 slide relative to the first sub-shell 411 in a direction close to each other to achieve shortening of the module shell 410.

[0051] The electronic device disclosed in this application provides two second sub-shells 412, which are slidably disposed at both ends of the first sub-shell 411. This further increases the elongation of the module shell 410, allowing the acoustic module to extend further, thereby facilitating further optimization of the acoustic module's functionality.

[0052] Of course, in some embodiments, the module shell 410 can be an elastic shell, which can extend and retract through deformation. Other methods can also be used to achieve the extension and retraction of the module shell 410, which will not be elaborated here.

[0053] In one optional embodiment, the first sub-shell 411 may have a first top opening 411a and a first side opening 411b that intersect each other. The acoustic diaphragm 420 may include a first region 421 and a second region 422. The functional module 400 may further include a diaphragm support 430, which is rotatably disposed at the first side opening 411b. The first region 421 may cover the first top opening 411a. The second region 422 may be disposed at the diaphragm support 430. The second sub-shell 412 may have a second top opening 412a, the orientation of which may be consistent with the orientation of the first top opening 411a. The first region 421 may cover the first top opening 411a. In the retracted state, the second region 422 may rotate with the diaphragm support 430 to a position covering the first side opening 411b, so that the second region 422, the first region 421, and the first sub-shell 411 form a second acoustic cavity. In the unfolded state, the second region 422 rotates with the diaphragm support 430 to a position covering the second top opening 412a. The second region 422 can be coplanar with the first region 421. The second region 422, the first region 421, the first sub-shell 411 and the second sub-shell 412 can form a first acoustic cavity.

[0054] The electronic device disclosed in this application covers the first top opening 411a with a first region 421, and the second region 422 is disposed on the diaphragm support 430. This allows the second region 422 to switch between covering the first side opening 411b and the second top opening 412a as the diaphragm support 430 rotates, thus forming either a first acoustic cavity or a second acoustic cavity. This enables different sound output states of the acoustic module. Furthermore, the method of rotating the second region 422 by rotating the diaphragm support 430 is relatively simple, simplifying the acoustic module. In the retracted state, the second region 422 rotates with the diaphragm support 430 to cover the first side opening 411b, thereby preventing the diaphragm support 430 from obstructing the retraction of the second sub-shell 412 relative to the first sub-shell 411. In the unfolded state, as the second sub-shell 412 moves relative to the first sub-shell 411 to extend the module shell 410, the second region 422 can rotate with the diaphragm support 430 to a position covering the second top opening 412a, thereby achieving the extension of the acoustic diaphragm 420.

[0055] In some embodiments, the diaphragm support 430 is slidably disposed on the first sub-shell 411, and the diaphragm support 430 can slide outside or inside the first sub-shell 411. The first end of the second region 422 of the acoustic diaphragm 420 can be connected to the first region 421, and the second end of the second region 422 of the acoustic diaphragm 420 can be connected to an elastic element. When the diaphragm support 430 slides outside the first sub-shell 411, the second region 422 can be driven to be flush with the first region 421, and the elastic element is in a stretched state, thereby allowing the second region 422, the first region 421, the first sub-shell 411, and the second sub-shell 412 to form a first acoustic cavity. When the diaphragm support 430 slides inside the first sub-shell 411, the elastic element can drive the second region 422 to contract, so that the second region 422, the first region 421, and the first sub-shell 411 form a second acoustic cavity.

[0056] Optionally, the functional module 400 may also include a drive mechanism 440, which may be connected between the first sub-shell 411 and the diaphragm support 430, and may be used to drive the diaphragm support 430 to rotate.

[0057] The electronic device disclosed in this application embodiment automates the rotation of the diaphragm support 430 by setting a drive mechanism 440, which drives the diaphragm support 430 to rotate.

[0058] Specifically, the drive mechanism 440 may include a third magnet 720, a second electromagnetic component 710, a fourth guide rail 730, and a second ball bearing 740. The second electromagnetic component 710 and the fourth guide rail 730 may be fixedly connected to one of the first sub-shell 411 and the diaphragm support 430. The third magnet 720 may be fixedly connected to the other of the first sub-shell 411 and the diaphragm support 430. The third magnet 720 is sleeved on the second electromagnetic component 710 and the fourth guide rail 730, and the third magnet 720 and the fourth guide rail 730 are connected by rolling contact via the second ball bearing 740. By controlling the energization of the second electromagnetic component 710, the second electromagnetic component 710 and the third magnet 720 can be magnetically engaged, thereby driving the diaphragm support 430 to switch between covering the first side opening 411b and covering the second top opening 412a. Of course, the driving method for the movement of the diaphragm support 430 can also be other structures, which are not limited here.

[0059] In one optional embodiment, the functional module 400 can be a vibration feedback module, which may include a shell 450, a cover 460, and a mass block 470. The mass block 470 may be disposed within the shell 450 and arranged in the movement direction with the cover 460. The mass block 470 can be connected to the shell 450 via a first elastic connector 810. The shell 450 may have an opening, and the cover 460 can be slidably disposed within the opening of the shell 450 in the movement direction to allow the functional module 400 to extend or retract. In the extended state, the distance between the cover 460 and the mass block 470 may be a first distance. In the retracted state, the distance between the cover 460 and the mass block 470 may be a second distance, and the first distance may be greater than the second distance.

[0060] It should be noted that when the distance between the cover 460 and the mass block 470 is the second distance, the distance between them is small, and the distance the mass block 470 can move is relatively small, thus allowing the vibration feedback module to provide a smaller amplitude of vibration feedback. When the distance between the cover 460 and the mass block 470 is the first distance, the distance between them is relatively large, and the distance the mass block 470 can move is relatively large, thus allowing the vibration feedback module to provide a larger amplitude of vibration feedback. The mass block 470 exhibits different vibration modes at different movement distances.

[0061] The electronic device disclosed in this application sets the functional module 400 as a vibration feedback module, so that when the distance between the cover 460 and the mass block 470 is a first distance in the unfolded state, the distance that the mass block 470 can move is relatively large, thereby optimizing the vibration function of the vibration feedback module.

[0062] The functional module 400 may also include a fourth magnet 830 and a second electromagnetic coil 840. One of the fourth magnet 830 and the second electromagnetic coil 840 is connected to the cover 460, and the other is connected to the mass block 470. When an alternating current is applied to the second electromagnetic coil 840, the second electromagnetic coil 840 or the fourth magnet 830 can drive the mass block 470 to vibrate.

[0063] Furthermore, the functional module 400 may also include a first guide rail 471 and a second guide rail 472. The first guide rail 471 can be connected to the cover 460, and the second guide rail 472 can be connected to the shell 450. The first guide rail 471 and the second guide rail 472 can slide in the direction of movement. The cover 460 and the shell 450 can be connected through the sliding engagement of the first guide rail 471 and the second guide rail 472. The first guide rail 471 can slide in the direction of movement with the second guide rail 472 through a third ball bearing 820, thereby reducing frictional resistance.

[0064] The electronic device disclosed in this application embodiment is provided with a first guide rail 471 and a second guide rail 472. The first guide rail 471 is connected to the cover 460, and the second guide rail 472 is connected to the shell 450, so that the first guide rail 471 and the second guide rail 472 slide in the moving direction. The cover 460 and the shell 450 are connected by the sliding engagement of the first guide rail 471 and the second guide rail 472, thereby making the relative sliding of the cover 460 and the shell 450 more stable.

[0065] This application also discloses a control method for an electronic device, wherein the disclosed electronic device is the electronic device in the above embodiments, and the disclosed control method includes:

[0066] S101, when the electronic device is in the unfolded state, the control function module 400 extends to a first dimension in the movement direction so that the function module 400 is in the first state.

[0067] S102, when the electronic device is in the retracted state, the control function module 400 is shortened to a second size in the moving direction so that the function module 400 is in the second state.

[0068] The steps in the control method of the electronic device disclosed in this application have the same or similar functions as the related components of the electronic device disclosed in the above embodiments, and they can be referred to each other, so they will not be described again here.

[0069] The electronic devices disclosed in this application may be mobile phones, tablets, game consoles, etc., and this application does not impose specific restrictions on electronic devices.

[0070] The above embodiments of the present invention focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0071] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. An electronic device, characterized in that, The device includes a first housing (100), a second housing (200), and a functional module (400). The first housing (100) is movably disposed on the second housing (200) to allow the electronic device to switch between an unfolded state and a retracted state. The functional module (400) is disposed within at least one of the first housing (100) and the second housing (200). The functional module (400) is an acoustic module, which includes a module shell (410) and an acoustic diaphragm (420). The module shell (410) is disposed on at least one of the first shell (100) and the second shell (200), and can extend and retract as the first shell (100) moves relative to the second shell (200). The extension and retraction direction of the module shell (410) is consistent with the movement direction of the first shell (100). The acoustic diaphragm (420) includes a first region (421) and a second region (422), and the first region (421) is disposed on the module shell (410). In the unfolded state, the module shell (410) is extended, the second region (422) is rotated so that the acoustic diaphragm (420) presents a first length in the direction of movement, and the acoustic diaphragm (420) and the module shell (410) form a first acoustic cavity so that the acoustic module is in the first state; In the retracted state, the module shell (410) is shortened, the second region (422) rotates so that the acoustic diaphragm (420) presents a second length in the direction of movement, and the acoustic diaphragm (420) and the module shell (410) form a second acoustic cavity, so that the acoustic module is in a second state, the second length is less than the first length, the volume of the first acoustic cavity is greater than the volume of the second acoustic cavity, and the direction of movement is perpendicular to the vibration direction of the acoustic diaphragm (420).

2. The electronic device according to claim 1, characterized in that, The functional module (400) is connected to the first housing (100) and the second housing (200) respectively. The functional module (400) can move with the first housing (100) relative to the second housing (200) and can extend and retract between a first size and a second size, wherein the second size is smaller than the first size.

3. The electronic device according to claim 1, characterized in that, The module shell (410) includes a first sub-shell (411) and a second sub-shell (412), the second sub-shell (412) being sleeved outside the first sub-shell (411), the second sub-shell (412) sliding relative to the first sub-shell (411) to allow the module shell (410) to extend and retract, and the acoustic diaphragm (420) being disposed on at least one of the first sub-shell (411) and the second sub-shell (412).

4. The electronic device according to claim 3, characterized in that, There are two second sub-shells (412), which are slidably disposed at both ends of the first sub-shell (411), wherein: The two second sub-shells (412) slide relative to the first sub-shell (411) in a direction away from each other to achieve elongation of the module shell (410); The two second sub-shells (412) slide relative to the first sub-shell (411) in a direction that brings them closer together, thereby shortening the module shell (410).

5. The electronic device according to claim 3 or 4, characterized in that, The first sub-shell (411) is provided with a first top opening (411a) and a first side opening (411b) facing each other. The functional module (400) also includes a diaphragm support (430), which is rotatably disposed on the first side opening (411b). The first region (421) covers the first top opening (411a). The second region (422) is disposed on the diaphragm support (430). The second subshell (412) is provided with a second top opening (412a); the orientation of the second top opening (412a) is the same as the orientation of the first top opening (411a); In the retracted state, the second region (422) rotates with the diaphragm support (430) to a position covering the first side opening (411b), and the second region (422), the first region (421), and the first sub-shell (411) form the second acoustic cavity; In the unfolded state, the second region (422) rotates with the diaphragm support (430) to a position covering the second top opening (412a). The second region (422) is coplanar with the first region (421). The second region (422), the first region (421), the first sub-shell (411), and the second sub-shell (412) form the first acoustic cavity.

6. The electronic device according to claim 5, characterized in that, The functional module (400) further includes a drive mechanism (440), which is connected between the first sub-shell (411) and the diaphragm support (430) and is used to drive the diaphragm support (430) to rotate.

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