Electronic device

Abstract

The application discloses an electronic device, which comprises a device shell, a sound emitting device and a sound collecting device arranged in the device shell. The sound collecting device comprises a diaphragm, and the sound collecting device is provided with a first cavity and a second cavity which are isolated from each other. A first surface of the diaphragm faces the first cavity, and a second surface of the diaphragm faces the second cavity. The first surface and the second surface are two surfaces of the diaphragm which are distributed in opposite directions in the vibration direction. The sound collecting device is provided with a first connecting hole and a second connecting hole. The first cavity is in communication with an external environment of the device shell through the first connecting hole. The second cavity is in communication with the second connecting hole, and the second connecting hole is isolated from the external environment of the device shell.

Description

Technical Field

[0001] This application belongs to the field of electronic device design technology, and specifically relates to an electronic device. Background Technology

[0002] Electronic devices are typically equipped with sound-collecting devices and sound-generating devices. Sound-collecting devices enable electronic devices to pick up sound, while sound-generating devices (such as speakers and receivers) enable them to produce sound. However, in actual operation, the sound emitted by the sound-generating device is more easily picked up by the sound-collecting device, causing an echo and ultimately resulting in poor sound pickup performance, affecting user experience. Summary of the Invention

[0003] This invention discloses an electronic device to solve the problem of poor sound pickup in related electronic devices.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] An electronic device includes a housing and a sound-generating device and a sound-collecting device disposed within the housing;

[0006] The sound-collecting device includes a diaphragm, and the sound-collecting device has a first cavity and a second cavity that are isolated from each other. The first surface of the diaphragm faces the first cavity, and the second surface of the diaphragm faces the second cavity. The first surface and the second surface are two surfaces of the diaphragm that are distributed opposite to each other in the vibration direction.

[0007] The sound-collecting device is provided with a first connection hole and a second connection hole. The first cavity is connected to the external environment of the device housing through the first connection hole, and the second cavity is connected to the second connection hole, while the second connection hole is isolated from the external environment of the device housing.

[0008] The technical solution adopted in this invention can achieve the following technical effects:

[0009] The electronic device disclosed in this application improves the structure of electronic devices in related technologies by providing a sound-collecting device with a first cavity and a second cavity that are isolated from each other, with the first surface of the diaphragm facing the first cavity and the second surface of the diaphragm facing the second cavity. The sound-collecting device also has a first connection hole connecting the first cavity to the external environment of the device housing, and a second connection hole connecting to the second cavity but isolated from the external environment of the device housing. This structure allows sound transmitted from the sound-generating device into the device housing to enter the first and second cavities through the first and second connection holes, respectively. The sound from the sound-generating device entering the first and second cavities drives the vibrations of the opposite surfaces of the diaphragm, thereby achieving cancellation. In this case, the sound entering the device housing and being picked up by the sound-collecting device cancels out the effects on the diaphragm, thus mitigating echo generation and ultimately reducing the adverse effects of the sound-generating device on the sound-collecting device. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a partial structure of an electronic device disclosed in an embodiment of this application;

[0011] Figure 2 This is a schematic diagram of a partial structure of another electronic device disclosed in an embodiment of this application;

[0012] Figure 3 This is a schematic diagram of an electronic device disclosed in an embodiment of this application.

[0013] Explanation of reference numerals in the attached figures:

[0014] 100 - Equipment housing, 101 - Sound pickup hole, 102 - Balance hole, 103 - Sealing part

[0015] 200 - Sound-generating device, 210 - Sound output channel

[0016] 300 - Sound-collecting device; 310 - Diaphragm; 311 - First surface; 312 - Second surface; 320 - Device housing; 321 - Substrate; 322 - Cover; 330 - Cylindrical base; 340 - First seat; 350 - Second seat; 301 - First cavity; 302 - Second cavity; 303 - First connecting hole; 304 - Second connecting hole.

[0017] 400 - Processing chip, 500 - Circuit board, 501 - First clearance hole, 502 - Second clearance hole. Detailed Implementation

[0018] Embodiments of the present invention will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0019] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] The technical solutions disclosed in the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Please refer to Figures 1 to 3 This application discloses an electronic device, which includes a device housing 100, a sound-generating device 200, and a sound-collecting device 300.

[0024] The device housing 100 serves as the basic component of the electronic device, providing a mounting base for other components. Based on this, the sound-generating device 200 and the sound-collecting device 300 are mounted within the device housing 100. In this embodiment, the sound-generating device 200 and the sound-collecting device 300 are disposed within the device housing 100. Specifically, the device housing 100 may have an internal cavity, and the sound-generating device 200 and the sound-collecting device 300 can be fixed within the device housing 100 through snap-fit, adhesive, or connecting methods (e.g., threaded connections), thereby achieving installation.

[0025] The sound-emitting device 200 is a device in an electronic device capable of emitting sound. The sound-emitting device 200 can be a speaker, a receiver, or other types of sound-emitting devices. This application embodiment does not limit the specific type of the sound-emitting device 200. Specifically, the device housing 100 has a sound outlet channel 210, and the sound-emitting device 200 is connected to the sound outlet channel 210. The sound outlet channel 210 is connected to the external environment of the device housing 100. The sound emitted by the sound-emitting device 200 is propagated to the external environment of the device housing 100 through the sound outlet channel 210, ultimately realizing the sound emission of the sound-emitting device 200.

[0026] The sound acquisition device 300 is a device in an electronic device capable of acquiring sound. The sound acquisition device 300 can be a microphone, or other types of sound acquisition devices. This application embodiment does not limit the specific type of the sound acquisition device 300. In this application embodiment, the sound acquisition device 300 includes a diaphragm 310. During the sound acquisition process, sound propagating in the air impacts the diaphragm 310, causing it to vibrate. The sound acquisition device 300 converts the vibration of the diaphragm 310 into a sound signal, ultimately achieving sound acquisition. Of course, the sound acquisition principle of the sound acquisition device 300 is well-known technology, and for the sake of brevity, it will not be elaborated further here.

[0027] The sound-collecting device 300 according to the embodiments of this application has a first cavity 301 and a second cavity 302. The first cavity 301 and the second cavity 302 are isolated from each other, that is, the first cavity 301 and the second cavity 302 are not interconnected. The diaphragm 310, as a component of the sound-collecting device 300, is used to cooperate with other components of the sound-collecting device 300 to form the first cavity 301 and the second cavity 302. Specifically, the diaphragm 310 has a first surface 311 and a second surface 312, which are two surfaces of the diaphragm 310 that are distributed opposite to each other in the vibration direction.

[0028] The first surface 311 of the diaphragm 310 faces the first cavity 301. In other words, the first surface 311 of the diaphragm 310 serves as part of the inner wall of the first cavity 301, and is used to cooperate with other components of the sound-collecting device 300 to form the first cavity 301. The second surface 312 of the diaphragm 310 faces the second cavity 302. In other words, the second surface 312 of the diaphragm 310 serves as part of the inner wall of the second cavity 302, and is used to cooperate with other components of the sound-collecting device 300 to form the second cavity 302.

[0029] The sound-collecting device 300 in this embodiment also has a first connecting hole 303 and a second connecting hole 304. The first cavity 301 is connected to the external environment of the device housing 100 through the first connecting hole 303. That is, the first cavity 301 is connected to the first connecting hole 303, and the first connecting hole 303 is connected to the external environment of the device housing 100. This connection allows the first cavity 301 to be connected to the external environment of the device housing 100. During the sound-collecting process of the sound-collecting device 300, sound from the external environment of the device housing 100 enters the first cavity 301 through the first connecting hole 303, thereby impacting the first surface 311 and ultimately causing the diaphragm 310 to vibrate.

[0030] The second cavity 302 is connected to the second connection hole 304, which is isolated from the external environment of the device housing 100. In other words, the second cavity 302 is not connected to the external environment of the device housing 100 through the second connection hole 304, and sound from the external environment of the device housing 100 cannot directly enter the second cavity 302 through the second connection hole 304.

[0031] It should be noted that, in this article, the external environment of the device housing 100 is the same as the environment in which the electronic device is located. The sound acquisition device 300 also collects the sound from the environment in which the electronic device is located.

[0032] Both the sound-collecting device 300 and the sound-generating device 200 are installed within the device housing 100 by assembly, and the sound-collecting device 300 and the sound-generating device 200 respectively cooperate with the device housing 100. The sound emitted by the sound-generating device 200 is directly transmitted into the device housing 100, and is thus picked up by the sound-collecting device 300, producing an unpleasant echo. Alternatively, the sound emitted by the sound-generating device 200 may propagate outside the device housing 100 through the sound outlet channel 210, and then these sounds may pass through the assembly gaps of the electronic device (such as the assembly gap between the device housing 100 and the display screen, or the assembly gaps formed between the housing components included in the device housing 100) and re-enter the device housing 100, where they will be picked up by the sound-collecting device 300, thus producing an unpleasant echo. The electronic device disclosed in this application solves the problem of the unpleasant effects caused by sound transmitted into the device housing 100 and picked up by the sound-collecting device 300 to produce an echo.

[0033] The electronic device disclosed in this application improves the structure of electronic devices in related technologies by providing a first cavity 301 and a second cavity 302 that are isolated from each other in the sound-collecting device 300, with the first surface 311 of the diaphragm 310 facing the first cavity 301 and the second surface 312 of the diaphragm 310 facing the second cavity 302. The sound-collecting device 300 also has a first connection hole 303 that connects the first cavity 301 to the external environment of the device housing 100, and a second connection hole 304 that connects to the second cavity 302 and is isolated from the external environment of the device housing 100. This structure allows the sound transmitted from the sound-generating device 200 to the device housing 100 to enter the first cavity 301 and the second cavity 302 through the first connection hole 303 and the second connection hole 304, respectively. The sound from the sound-generating device 200 entering the first cavity 301 and the second cavity 302 can drive the vibration of the opposite first surface 311 and the second surface 312 of the diaphragm 310, thereby achieving the purpose of cancellation. In this case, the sound entering the device housing 100 and being picked up by the sound-collecting device 300 will cancel each other out on the diaphragm 310, thus alleviating the generation of echo and ultimately reducing the adverse effects of the sound-generating device 200 on the sound-collecting device 300.

[0034] The electronic device disclosed in this application embodiment can prevent all the sound generated by the sound-generating device 200 from entering one side of the diaphragm 310. Instead, it guides the sound to both sides of the diaphragm 310 (i.e., into the first cavity 301 and the second cavity 302 respectively) through a corresponding structure, thereby canceling out the sound interference generated by the sound-generating device 200 to a certain extent, and thus reducing the impact on the sound-collecting device 300.

[0035] It should be noted that, in this paper, a sealing structure can be provided between the sound-collecting device 300 and the sound-generating device 200 and the device housing 100 to achieve a sealed connection of the corresponding structures. However, the sealing of the sealing structure cannot completely prevent sound from entering the sound-collecting device 300. Therefore, in the electronic device disclosed in this application embodiment, the part of the sound emitted by the sound-generating device 200 that enters the device housing 100 will enter the first cavity 301 and the second cavity 302 respectively through the first connecting hole 303 and the second connecting hole 304, ultimately playing a balancing and canceling role.

[0036] As mentioned above, the sound-collecting device 300 has a first cavity 301 and a second cavity 302. There are various ways in which the sound-collecting device 300 has the first cavity 301 and the second cavity 302. Please refer to [the relevant documentation]. Figure 1 In one specific embodiment, the sound-collecting device 300 may further include a device housing 320 and a cylindrical base 330. A first connecting hole 303 and a second connecting hole 304 are formed on the device housing 320.

[0037] A first port of the cylindrical base 330 is connected to the inner wall of the device housing 320, and a diaphragm 310 is disposed at and covers the second port of the cylindrical base 330. In this case, the area within the inner wall of the device housing 320 surrounded by the cylindrical base 330 is the first region, and the area within the inner wall of the device housing 320 located outside the cylindrical base 330 is the second region. The first surface 311, the inner wall of the cylindrical base 330, and the first region form a first cavity 301, and a first connecting hole 303 is formed within the first region. The second surface 312, the outer wall of the cylindrical base 330, and the second region form a second cavity 302, and a second connecting hole 304 is formed within the second region.

[0038] In this type of sound-collecting device 300, a cylindrical base 330 is used to provide a mounting foundation for the diaphragm 310. At the same time, because the cylindrical base 330 is a cylindrical structure, it can more easily form a first cavity 301 with the diaphragm 310 and the device housing 320. This structure allows the sound-collecting device 300 to use fewer components to form the first cavity 301.

[0039] Meanwhile, since the first connecting hole 303 is located in the first region surrounded by the cylindrical base 330, that is, the region surrounded by the edge of the first port of the cylindrical base 330, and the diaphragm 310 is sealed on the second port of the cylindrical base 330, it is relatively easy to make the first connecting hole 303 face the diaphragm 310. In this case, during the sound collection process, the sound entering the first cavity 301 through the first connecting hole 303 is more likely to produce a more obvious impact on the diaphragm 310, thereby making the diaphragm vibration of the diaphragm 310 more significant and achieving a better sound pickup effect. In an optional solution, the axis of the first connecting hole 303 can be perpendicular to the diaphragm 310. Of course, the angle between the axis of the first connecting hole 303 and the diaphragm 310 can also be about 90°. In other embodiments, the angle between the axis of the first connecting hole 303 and the diaphragm 310 can be an acute angle. For example, the angle between the axis of the first connecting hole 303 and the diaphragm 310 can be 85° to 90°.

[0040] Please refer to Figure 2 Another structure of the sound-collecting device 300 disclosed in this application embodiment may further include a device housing 320 and a first base 340 and a second base 350 disposed within the device housing 320. A first connecting hole 303 and a second connecting hole 304 are formed on the device housing 320.

[0041] A diaphragm 310 is disposed between a first base 340 and a second base 350. Specifically, the first base 340 and the second base 350 can be fixed inside the device housing 320, and the diaphragm 310 is clamped and fixed between the first base 340 and the second base 350. In this case, the first surface 311, the first base 340, and part of the inner wall of the device housing 320 form a first cavity 301. The second surface 312, the second base 350, and part of the inner wall of the device housing 320 form a second cavity 302. This method, in which the first base 340 and the second base 350 respectively cooperate with the first surface 311 and the second surface 312, allows for flexible adjustment of the size of the first base 340 and the second base 350, and thus allows for relatively flexible adjustment of the size of the first cavity 301 and the second cavity 302.

[0042] In a further technical solution, the volumes of the first cavity 301 and the second cavity 302 are equal, thereby forming a more balanced structure, which is more conducive to canceling the vibration interference of the airflow in the first cavity 301 and the second cavity 302 on the diaphragm 310 and better eliminating echo.

[0043] In a further technical solution, the first connecting hole 303 and the second connecting hole 304 can be symmetrically arranged on both sides of the diaphragm 310, which is also conducive to the cancellation of the vibration of the diaphragm 310 by the airflow on both sides of the diaphragm 310, thereby better eliminating echo.

[0044] In one alternative embodiment, the inner port of the first connecting hole 303 adjacent to the first cavity 301 is oriented parallel to the first surface 311. The inner port of the second connecting hole 304 adjacent to the second cavity 302 may be oriented parallel to the second surface. This structure can prevent the airflow entering from the first connecting hole 303 and the second connecting hole 304 from causing excessive frontal impact on the diaphragm 310, thereby protecting the diaphragm. Of course, this structure can also alleviate dust accumulation on the diaphragm 310.

[0045] In this embodiment, the device housing 320 can have various structures. In one optional embodiment, the device housing 320 may include a substrate 321 and a cover 322, with the cover 322 disposed on the substrate 321. Both the first connecting hole 303 and the second connecting hole 304 can be formed on the substrate 321. Specifically, the cover 322 can be fixed to the substrate 321 by adhesive bonding, snap-fitting, or other methods. In a further technical solution, the cover 322 can be a shielding cover. In this case, the cover 322 not only constitutes the device housing 320 but also provides shielding, thereby preventing electromagnetic interference from the external environment to the internal components of the sound-collecting device 300.

[0046] Specifically, the sound acquisition device 300 disclosed in this application embodiment may also include a processing chip 400. The processing chip 400 may be mounted on the substrate 321 and located inside the housing 322. In this case, the processing chip 400 can not only be protected by the housing 322, but also shielded from external electromagnetic interference by the housing 322.

[0047] In an optional embodiment, the electronic device disclosed in this application may further include a circuit board 500, on which the sound-collecting device 300 and the sound-generating device 200 can be mounted. The circuit board 500 not only provides mounting locations for the sound-collecting device 300 and the sound-generating device 200, but also provides them with electrical power. Specifically, the substrate 321 can be attached to the circuit board 500, thereby improving mounting stability.

[0048] When the first connecting hole 303 and the second connecting hole 304 are provided on the substrate 321, the circuit board 500 may have a first clearance hole 501 and a second clearance hole 502. The first connecting hole 303 communicates with the external environment of the device housing 100 through the first clearance hole 501. Specifically, the first connecting hole 303, the first clearance hole 501, the first pickup hole 101, and the external environment are sequentially connected. The second connecting hole 304 communicates with the second clearance hole 502, and the opening of the second clearance hole 502 can be sealed by the inner surface of the device housing 100. In this case, the circuit board 500, the substrate 321, and the device housing 100 can easily form the same assembly structure, which is more conducive to forming a more symmetrical and balanced structure with the same sealing conditions, and is more conducive to achieving the cancellation of sound interference, further achieving the purpose of reducing echo.

[0049] As described above, the sound-generating device 200 is housed within the device housing 100. To facilitate sound generation by the electronic device, the device housing 100 may have the aforementioned sound outlet channel 210. Similarly, the sound-collecting device 300 is housed within the device housing 100. To facilitate sound collection, the device housing 100 may have a pickup hole 101. The first connection hole 303 communicates with the external environment of the device housing 100 through the pickup hole 101. In a further technical solution, the device housing 100 may also have a balancing hole 102. The balancing hole 102 communicates with the second connection hole 304 and is isolated from the external environment of the device housing 100. The balancing hole 102 essentially functions as an expansion device, thereby preventing the airflow entering the second connection hole 304 from having an excessively small volume and thus avoiding excessive impact on the diaphragm 310. This allows the second cavity 302 to have a strong function of balancing and counteracting the vibration of the diaphragm 310.

[0050] Of course, the equipment housing 100 does not need to have a balance hole 102. The outer opening of the second connection hole 304 can be directly blocked by the inner wall of the equipment housing 100, thereby achieving the purpose of isolating it from the external environment of the equipment housing 100.

[0051] The balancing hole 102 is isolated from the external environment of the equipment housing 100. Various structures can achieve this. In one alternative, the balancing hole 102 can be a blind hole, with its open end sealingly connected to and communicating with the second connecting hole 304. One end of the blind hole does not require an opening, thus better ensuring the uniformity of the appearance of the equipment housing 100.

[0052] Of course, in other embodiments, the balancing hole 102 can be a through hole, with its first port sealingly connected to and communicating with the second connecting hole 304. The second port of the through hole is provided with a sealing part 103, which isolates the through hole from the external environment of the device housing 100. Specifically, the sealing part 103 can be a sealing plug (e.g., a rubber plug). In this case, during the formation of the balancing hole 102, the operator can first machine the through hole and then install the sealing part 103 at the outer port (i.e., the second port) of the through hole. This structure has the advantage of being relatively simple to manufacture.

[0053] In a further technical solution, the balance hole 102 and the pickup hole 101 can be arranged in a first direction, which is the thickness direction of the electronic device. The sound-generating device 200 and the sound-collecting device 300 can be arranged in a second direction, which is perpendicular to the first direction. The first connecting hole 303 and the second connecting hole 304 are symmetrically arranged on both sides of a first center line, which is the center line of the sound-generating device 200 extending along the second direction. In this case, it is beneficial to form a more symmetrical structure, which in turn is beneficial to sound cancellation.

[0054] In a further technical solution where the device housing 100 has a balance hole 102 and a pickup hole 101, the balance hole 102 and the pickup hole 101 can also be symmetrically arranged on both sides of the first center line. This structure allows the balance hole 102 and the pickup hole 101 to be symmetrically distributed on the sound-generating device 200, thereby enabling the sound transmitted into the device housing 100 to enter the sound-collecting device 300 through a more balanced path, which is beneficial for achieving cancellation balance.

[0055] It should be noted that, in the embodiments of this application, the electronic device is usually equipped with a display screen, which is mounted on the device housing 100, and the thickness direction of the electronic device can be perpendicular to the display surface of the display screen.

[0056] The electronic devices disclosed in the application embodiments can be mobile phones, computers, e-book readers, medical devices, etc. This application embodiment does not limit the specific types of electronic devices.

[0057] Other configurations and operations of the electronic devices according to embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that, Includes a device housing and a sound-generating device, a sound-collecting device, and a circuit board disposed within the device housing; The sound-collecting device includes a diaphragm, and the sound-collecting device is provided with a first cavity and a second cavity that are isolated from each other. The first surface of the diaphragm faces the first cavity, and the second surface of the diaphragm faces the second cavity. The first surface and the second surface are two surfaces of the diaphragm that are distributed opposite to each other in the vibration direction. The sound-collecting device is provided with a first connection hole and a second connection hole. The first cavity is connected to the external environment of the device housing through the first connection hole, and the second cavity is connected to the second connection hole, while the second connection hole is isolated from the external environment of the device housing. The sound-collecting device also includes a device housing, the diaphragm is disposed inside the device housing, the first cavity and the second cavity are both disposed inside the device housing, the device housing includes a substrate and a cover, the cover is disposed on the substrate, the first connection hole and the second connection hole are both formed on the substrate, and the substrate is disposed on the circuit board; The circuit board has a first clearance hole and a second clearance hole, and the device housing has a pickup hole and a balance hole. The first connection hole communicates with the external environment through the first clearance hole and the pickup hole in sequence; the second connection hole communicates with the balance hole through the second clearance hole, and the balance hole is isolated from the external environment.

2. The electronic device according to claim 1, characterized in that, The sound-collecting device further includes a cylindrical base; the first port of the cylindrical base is connected to the inner wall of the device housing, and the diaphragm is disposed at the second port of the cylindrical base and covers the second port; The first cavity is formed by the area surrounded by the cylindrical base in the inner wall of the device housing, the first surface, and the inner wall of the cylindrical base. The second cavity is formed by the region located outside the cylindrical base in the inner wall of the device housing, the second surface, and the outer wall of the cylindrical base.

3. The electronic device according to claim 2, characterized in that, The axis of the first connecting hole is perpendicular to the diaphragm.

4. The electronic device according to claim 1, characterized in that, The sound-collecting device also includes a first base and a second base disposed within the housing of the device; The diaphragm is disposed between the first base and the second base; The first surface, the first base, and a portion of the inner wall of the device housing form the first cavity; The second surface, the second base, and the inner wall of the device housing portion form the second cavity.

5. The electronic device according to claim 4, characterized in that, The first cavity and the second cavity have the same volume, and / or the first connecting hole and the second connecting hole are symmetrically disposed on both sides of the diaphragm.

6. The electronic device according to claim 4, characterized in that, The orientation of the inner port of the first connecting hole adjacent to the first cavity is parallel to the first surface, and the orientation of the inner port of the second connecting hole adjacent to the second cavity is parallel to the second surface.

7. The electronic device according to any one of claims 2-6, characterized in that, The enclosure is a shielding enclosure.

8. The electronic device according to claim 1, characterized in that, The balancing hole is a blind hole, and the open end of the balancing hole is sealed and connected to the second connecting hole; Alternatively, the balance hole is a through hole, the first port of the through hole is sealed and connected to the second connecting hole, and the second port of the through hole is provided with a sealing part, and the through hole is isolated from the external environment through the sealing part.

9. The electronic device according to claim 1, characterized in that, The balance hole and the pickup hole are arranged in a first direction, which is the thickness direction of the electronic device. The sound-generating device and the sound-collecting device are arranged in a second direction, which is perpendicular to the first direction. The first connecting hole and the second connecting hole are symmetrically arranged on both sides of the first center line. The balance hole and the pickup hole are symmetrically arranged on both sides of the first center line, which is the center line of the sound-generating device extending along the second direction.

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