CN212012996U - Function module and terminal equipment - Google Patents

Abstract

The application relates to a functional module and terminal equipment, and the functional module includes baroceptor and vibrating diaphragm. The vibrating diaphragm is connected in baroceptor and forms sealed chamber with baroceptor, and sealed chamber is used for the holding gas to change the atmospheric pressure in the sealed chamber when the vibrating diaphragm vibrates, baroceptor can detect the atmospheric pressure in the sealed chamber. Above-mentioned function module, vibrating diaphragm and baroceptor form sealed chamber, and the vibrating diaphragm can vibrate and change the atmospheric pressure in the sealed chamber along with environmental sound, and the baroceptor detects the atmospheric pressure in the sealed chamber and can exports the signal of telecommunication, can turn into sound signal with the signal of telecommunication through further processing. The function of microphone can be realized to vibrating diaphragm and baroceptor's combination, can realize baroceptor's function again, and the function module has less volume relatively, can save the inside installation space of terminal equipment when being applied to terminal equipment.

Description

Function module and terminal equipment

Technical Field

The application relates to the technical field of terminal equipment, in particular to a functional module and terminal equipment.

Background

Terminal equipment such as smart mobile phones is generally equipped with microphone and baroceptor, and the microphone is used for turning into the signal of telecommunication with sound signal, and baroceptor is used for detecting environment atmospheric pressure, and both set up in terminal equipment independently each other, and occupation space is great.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a functional module and a terminal device, so as to save the installation space inside the terminal device.

A functional module, comprising:

an air pressure sensor; and

the vibrating diaphragm, connect in baroceptor and with baroceptor forms the sealed chamber, the sealed chamber is used for the holding gas, with the vibrating diaphragm vibration time change the atmospheric pressure in the sealed chamber, baroceptor can detect the sealed intracavity the atmospheric pressure.

Above-mentioned function module, vibrating diaphragm and baroceptor form sealed chamber, and the vibrating diaphragm can vibrate and change the atmospheric pressure in the sealed chamber along with environmental sound, and the baroceptor detects the atmospheric pressure in the sealed chamber and can exports the signal of telecommunication, can turn into sound signal with the signal of telecommunication through further processing. The function of microphone can be realized to vibrating diaphragm and baroceptor's combination, can realize baroceptor's function again, and the function module has less volume relatively, can save the inside installation space of terminal equipment when being applied to terminal equipment.

In one embodiment, the air pressure sensor includes a housing and a detection film, the detection film is connected to the housing, and the diaphragm is disposed opposite to the detection film and forms the sealed cavity with the detection film and the housing.

In one embodiment, the housing is provided with a recessed area, the recessed area is circumferentially closed, the detection membrane is arranged at the bottom of the recessed area, and the diaphragm covers the recessed area.

A terminal device comprises a shell and the functional module, wherein the shell is provided with a sound hole, the position of the functional module and the position of the shell are relatively fixed, and the sound hole is communicated to a vibrating diaphragm.

In one embodiment, the terminal device includes a sealing member, the sealing member is disposed on the periphery of the sound hole, and two opposite sides of the sealing member are respectively connected to the diaphragm and the housing.

In one embodiment, the seal is foam.

In one embodiment, the sound hole forms a first opening and a second opening on two opposite sides of the housing, the first opening is exposed on the outer surface of the housing, and the area enclosed by the first opening is smaller than the area enclosed by the second opening.

In one embodiment, the sound hole includes a first hole and a second hole communicated with the first hole, the first hole forms the first opening on the outer surface of the housing, the second hole forms the second opening on the inner surface of the housing, the area of any cross section of the first hole is equal, and the area of the cross section of the second hole gradually increases from the first opening side to the second opening side.

In one embodiment, the sealing element has a through hole, and the area of the cross section of the through hole is larger than or equal to the area surrounded by the second opening.

In one embodiment, the housing shields the diaphragm.

In one embodiment, the sound hole includes a first hole and a second hole communicated with the first hole, the first hole extends to the outer surface of the housing, the second hole extends to the inner surface of the housing, the extending direction of the first hole is perpendicular to or inclined with respect to the extending direction of the second hole, or at least one of the first hole and the second hole is an arc-shaped hole.

In one embodiment, the diaphragm is exposed from the sound hole to an outer surface of the case.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a terminal device according to an embodiment;

fig. 2 is a partial schematic view of a terminal device of the first embodiment;

fig. 3 is a partial schematic view of a terminal device of the second embodiment;

fig. 4 is a partial schematic view of a terminal device of a third embodiment;

fig. 5 is a schematic block structure diagram of a terminal device according to an embodiment of the present application.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As used herein, "terminal device" refers to a device capable of receiving and/or transmitting communication signals including, but not limited to, devices connected via any one or more of the following connections:

(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;

(2) via a Wireless interface means such as a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter.

A terminal device arranged to communicate over a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

(1) satellite or cellular telephones;

(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;

(3) radiotelephones, pagers, internet/intranet access, Web browsers, notebooks, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) conventional laptop and/or palmtop receivers;

(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.

Referring to fig. 1 and 2, in some embodiments, the terminal device 10 is a smart phone, which includes a housing 100, a display screen module 200, and a function module 300, wherein the display screen module 200 is connected to the housing 100, and a position of the function module 300 is fixed relative to a position of the housing 100. Specifically, in some embodiments, the functional module 300 is fixedly attached to the housing 100. In other embodiments, the functional module 300 is fixedly connected to a circuit board or other device. The display screen module 200 can be used to display information and provide an interactive interface for a user, and may further include a display screen and a protective cover 210 covering the display screen. The Display screen may be a Liquid Crystal Display (LCD) screen or an Organic Light-Emitting Diode (OLED) screen, and the protective cover 210 may be a glass cover or a sapphire cover. The housing 100 forms a mounting cavity for mounting electronic components such as the functional module 300 of the terminal device 10, a circuit board, a battery, etc., and the circuit board may integrate a processor, a memory, a power management unit, a baseband chip, etc. In other embodiments, the terminal device 10 may be a tablet computer, a handheld game console, or the like.

The functional module 300 further includes an air pressure sensor 310 and a diaphragm 320, the diaphragm 320 is connected to the air pressure sensor 310 and forms a sealed cavity 301 with the air pressure sensor 310, and the sealed cavity 301 is used for containing air so as to change the air pressure in the sealed cavity 301 when the diaphragm 320 vibrates. The casing 100 has a sound hole 110, and the sound hole 110 is connected to the diaphragm 320. The air pressure sensor 310 is capable of detecting air pressure within the sealed cavity 301 and generating an electrical signal. Ambient air can enter the terminal device 10 from the sound hole 110 and contact the functional module 300 so that ambient sound can be conducted to the functional module 300 through the sound hole 110. Ambient sound causing the diaphragm 320 to vibrate can cause the air pressure within the sealed cavity 301 to change, which is then detected by the air pressure sensor 310 and converted into an electrical signal. The electrical signal output by the air pressure sensor 310 may be further processed by hardware circuits such as a power amplifier and a filter to convert the received electrical signal into a sound signal, so that the combination of the air pressure sensor 310 and the diaphragm 320 may be used to implement the function of a microphone. In such an embodiment, the ambient air pressure causes the diaphragm 320 to deform, thereby causing a change in the air pressure within the sealed cavity 301, and the air pressure sensor 310 can also detect the ambient air pressure to preserve the functionality of the air pressure sensor 310.

In some embodiments, the air pressure sensor 310 includes a housing 311 and a detection film 312, the detection film 312 is connected to the housing 311, and the diaphragm 320 is disposed opposite to the detection film 312 and forms a sealed cavity 301 with the detection film 312 and the housing 311. The change of the air pressure in the sealed cavity 301 can cause the deformation of the detection film 312, and then cause the change of the resistance, and the air pressure sensor 310 can change the current or voltage in the detection circuit through the deformation of the detection film 312, and then realize the detection of the ambient air pressure. Further, the housing 311 of the air pressure sensor 310 is provided with a recessed area, the recessed area is circumferentially closed, the detection film 312 is disposed at the bottom of the recessed area, and the diaphragm 320 covers the recessed area and forms a sealed cavity 301 with the housing 311 and the detection film 312. In some embodiments, the air pressure sensor 310 may have a rectangular block shape, and may also have a cylindrical shape or other shapes. The diaphragm 320 has a relatively small thickness, and the diaphragm 320 and the air pressure sensor 310 can significantly reduce the volume of the device as a whole compared to the stacking of the air pressure sensor 310 and the microphone.

Above-mentioned function module 300, vibrating diaphragm 320 and baroceptor 310 form sealed chamber 301, and vibrating diaphragm 320 can vibrate and change the atmospheric pressure in the sealed chamber 301 along with environmental sound, and baroceptor 310 detects the atmospheric pressure in the sealed chamber 301 and can output the signal of telecommunication, can convert the signal of telecommunication into sound signal through further processing. The combination of the diaphragm 320 and the air pressure sensor 310 can realize both the function of a microphone and the function of the air pressure sensor 310, and the functional module 300 has a relatively small size, so that the installation space inside the terminal device 10 can be saved when the functional module is applied to the terminal device 10. The saved internal space of the terminal device 10 can be used to increase the volume of the battery to improve the endurance of the terminal device 10, and the saved internal space of the terminal device 10 can also be used to provide more powerful electronic components to improve the performance of the terminal device 10 in other aspects.

Referring to fig. 2, in some embodiments, the terminal device 10 includes a seal 400, and the function module 300 is fixedly connected to the housing 100 through the seal 400. The sealing member 400 is disposed at the periphery of the sound hole 110, and opposite sides of the sealing member 400 are respectively connected to the diaphragm 320 and the casing 100. Further, in some embodiments, the seal 400 is foam. The sealing member 400 can seal the gap between the functional module 300 and the housing 100, so that the functional module 300 can be reliably fixed to the housing 100 and the sound transmission passage can be ensured to be airtight, thereby improving the detection accuracy of the ambient air pressure and the detection accuracy of the ambient sound. In other embodiments, the sealing member 400 may be made of silicon rubber or rubber, and may be fixedly connected to the functional module 300 and the housing 100 by glue or the like. Of course, the seal 400 is not required. For example, the functional module 300 may be fixedly connected to the housing 100 by an adhesive, and the air tightness between the functional module 300 and the housing 100 may be ensured by the adhesive.

Referring to fig. 2, the sound hole 110 forms a first opening 101 and a second opening 103 on opposite sides of the housing 100, the first opening 101 is exposed on an outer surface of the housing 100, the second opening 103 is located on an inner surface of the housing 100, and an area enclosed by the first opening 101 is smaller than an area enclosed by the second opening 103. Further, the sound hole 110 may include a first hole 111 and a second hole 113 communicating with the first hole 111, the first hole 111 forms the first opening 101 on the outer surface of the casing 100, the second hole 113 forms the second opening 103 on the inner surface of the casing 100, the areas of any cross sections of the first hole 111 are equal, and the area of the cross section of the second hole 113 gradually increases from the first opening 101 to the second opening 103. Further, in some embodiments, the first hole 111 is a circular hole, the second hole 113 is a trumpet hole, and the first hole 111 has a circular profile with any cross section and an equal area. In other words, the aperture diameter of the first hole 111 remains unchanged. The profile of any cross section of the second hole 113 is circular, and the area of the cross section of the second hole 113 gradually increases from the first opening 101 side to the second opening 103. This kind of structure setting can play the amplification to environmental sound, is favorable to functional module 300 to gather sound information. In other embodiments, the cross section of the first hole 111 may have other shapes, such as a triangle, a rectangle, a pentagon, a hexagon, etc., and the cross section of the second hole 113 may also have a triangle, a rectangle, a pentagon, a hexagon, etc.

Further, in some embodiments, the seal 400 has a through-hole 401, and the cross-sectional area of the through-hole 401 is greater than or equal to the area enclosed by the second opening 103. The through hole 401 of the sealing member 400 can further enlarge the volume of the sound transmission channel, so as to amplify the environmental sound and facilitate the collection of the sound information by the functional module 300.

Referring to fig. 2, in some embodiments, the diaphragm 320 is exposed from the sound hole 110 to the outer surface of the case 100. In other words, the diaphragm 320 can be observed when looking at the outer surface of the case 100 in the depth direction of the sound hole 110. For example, the central axis of the sound hole 110 may be linear, and at least a portion of the diaphragm 320 is exposed from the sound hole 110, so that the diaphragm 320 has a relatively short distance from the outer surface of the housing 100, thereby shortening the propagation path of the sound and facilitating the functional module 300 to detect the ambient sound or the ambient air pressure. It is understood that in this embodiment, diaphragm 320 or air pressure sensor 310 may be offset from the central axis of sound hole 110 by a distance to avoid exposing diaphragm 320 to sound hole 110 in an excessively large area, thereby providing some protection for diaphragm 320 and reducing the possibility of a sharp object penetrating diaphragm 320 when a user mistakenly inserts a sharp object such as a thimble into sound hole 110.

Referring to fig. 3, in other embodiments, the case 100 shields the diaphragm 320 to prevent the diaphragm 320 from being exposed to the outer surface of the case 100 from the sound hole 110. Specifically, taking the example that the sound hole 110 includes the first hole 111 and the second hole 113 communicating with the first hole 111, the first hole 111 and the second hole 113 may both extend along a straight line, and the extending direction of the first hole 111 may be perpendicular to or inclined from the extending direction of the second hole 113. For example, in a case where the extending direction of the first hole 111 is perpendicular to the extending direction of the second hole 113, the sound hole 110 is substantially L-shaped. In this embodiment, the outer surface of the diaphragm 320 is no longer disposed perpendicular to the central axis of the first hole 111, and the diaphragm 320 is shielded by the housing 100. When a user mistakenly inserts a sharp object such as a thimble into the sound hole 110, the structure can prevent the sharp object from piercing the diaphragm 320, so that the functional module 300 can be well protected.

Referring to fig. 4, of course, in other embodiments, at least one of the first hole 111 and the second hole 113 may be an arc-shaped hole, and the arc-shaped hole can also prevent the diaphragm 320 from being exposed to the outer surface of the casing 100, so as to protect the diaphragm 320. Specifically, in such an embodiment, the first aperture 111 may extend along a straight line and the second aperture 113 may extend along an arc; or the first aperture 111 extends in an arc and the second aperture 113 extends in a straight line; or both the first and second apertures 111, 113 extend along an arc.

When the functional module 300 is applied to the terminal device 10, the number of the openings of the housing 100 can be reduced for the terminal device 10, for example, when the functional module 300 is adopted, the functional module 10 only uses one sound hole 110, the terminal device 10 has better appearance integrity, and the sealing is simpler and more reliable, so as to improve the waterproof and dustproof performance of the terminal device 10. When the functional module 300 is used as a microphone, the audio channel is relatively short, so that better audio performance can be obtained. Since the microphone and the air pressure sensor 310 are integrated into one device, the functional module 300 also reduces the usage of the microphone, and reduces the device cost of the terminal device 10.

Referring to fig. 5, fig. 5 is a schematic structural diagram of the terminal device 10 according to an embodiment of the present application. The terminal device 10 may include a Radio Frequency (RF) circuit 501, a memory 502 including one or more computer-readable storage media, an input unit 503, a display unit 504, a sensor 505, an audio circuit 506, a Wireless Fidelity (WiFi) module 507, a processor 508 including one or more processing cores, and a power supply 509. Those skilled in the art will appreciate that the terminal device 10 configuration shown in fig. 5 does not constitute a limitation of the terminal device 10 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The rf circuit 501 may be used for receiving and transmitting information, or receiving and transmitting signals during a call, and in particular, receives downlink information of a base station and then sends the received downlink information to one or more processors 508 for processing; in addition, data relating to uplink is transmitted to the base station. In general, radio frequency circuit 501 includes, but is not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency circuit 501 may also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Message Service (SMS), and the like.

The memory 502 may be used to store applications and data. Memory 502 stores applications containing executable code. The application programs may constitute various functional modules. The processor 508 executes various functional applications and data processing by executing application programs stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the terminal device 10, and the like. Further, the memory 502 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 502 may also include a memory controller to provide the processor 508 and the input unit 503 access to the memory 502.

The input unit 503 may be used to receive input numbers, character information, or user characteristic information (such as a fingerprint), and generate a keyboard, mouse, joystick, optical, or trackball signal input related to user setting and function control. In particular, in one particular embodiment, the input unit 503 may include a touch-sensitive surface as well as other input devices. The touch-sensitive surface, also referred to as a touch display screen or a touch pad, may collect touch operations by a user (e.g., operations by a user on or near the touch-sensitive surface using a finger, a stylus, or any other suitable object or attachment) thereon or nearby, and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 508, and can receive and execute commands sent by the processor 508.

The display unit 504 may be used to display information input by or provided to the user and various graphical user interfaces of the terminal device 10, which may be made up of graphics, text, icons, video, and any combination thereof. The display unit 504 may include a display panel. Alternatively, the Display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch-sensitive surface may overlay the display panel, and when a touch operation is detected on or near the touch-sensitive surface, the touch operation is transmitted to the processor 508 to determine the type of touch event, and then the processor 508 provides a corresponding visual output on the display panel according to the type of touch event. Although in FIG. 5 the touch-sensitive surface and the display panel are two separate components to implement input and output functions, in some embodiments the touch-sensitive surface may be integrated with the display panel to implement input and output functions. It is understood that the display screen 110 may include an input unit 503 and a display unit 504.

The terminal device 10 may also include at least one sensor 505, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel according to the brightness of ambient light, and a proximity sensor that turns off the display panel and/or the backlight when the terminal device 10 is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when the mobile phone is stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured in the terminal device 10, detailed description thereof is omitted.

The audio circuit 506 may provide an audio interface between the user and the terminal device 10 through a speaker, microphone. The audio circuit 506 can convert the received audio data into an electrical signal, transmit the electrical signal to a speaker, and convert the electrical signal into a sound signal to output; on the other hand, the microphone converts the collected sound signal into an electric signal, which is received by the audio circuit 506 and converted into audio data, and then the audio data is processed by the audio data output processor 508, and then the audio data is sent to, for example, another terminal device 10 via the radio frequency circuit 501, or the audio data is output to the memory 502 for further processing. The audio circuitry 506 may also include an earphone jack to provide communication of a peripheral earphone with the terminal device 10.

Wireless fidelity (WiFi) belongs to short-range wireless transmission technology, and the terminal device 10 can help the user send and receive e-mail, browse web pages, access streaming media and the like through the wireless fidelity module 507, and provides wireless broadband internet access for the user. Although fig. 5 shows the wireless fidelity module 507, it is understood that it does not belong to the essential constitution of the terminal device 10, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 508 is a control center of the terminal device 10, connects various parts of the entire terminal device 10 with various interfaces and lines, and performs various functions of the terminal device 10 and processes data by running or executing an application program stored in the memory 502 and calling up data stored in the memory 502, thereby performing overall monitoring of the terminal device 10. Optionally, processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor, which primarily handles operating systems, user interfaces, application programs, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 508.

The terminal device 10 also includes a power supply 509 to supply power to the various components. Preferably, the power supply 509 may be logically connected to the processor 508 through a power management system, so that the power management system may manage charging, discharging, and power consumption. The power supply 509 may also include any component such as one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.

Although not shown in fig. 5, the terminal device 10 may further include a bluetooth module or the like, which is not described in detail herein. In specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily to be implemented as the same or several entities, and specific implementation of the above modules may refer to the foregoing method embodiments, which are not described herein again.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (12)

1. A functional module, comprising:

an air pressure sensor; and

the vibrating diaphragm, connect in baroceptor and with baroceptor forms the sealed chamber, the sealed chamber is used for the holding gas, with the vibrating diaphragm vibration time change the atmospheric pressure in the sealed chamber, baroceptor can detect the sealed intracavity the atmospheric pressure.

2. The functional module of claim 1, wherein the barometric sensor comprises a housing and a sensing diaphragm, the sensing diaphragm is connected to the housing, and the diaphragm is disposed opposite to the sensing diaphragm and forms the sealed cavity with the sensing diaphragm and the housing.

3. The functional module according to claim 2, wherein the housing has a recessed area, the recessed area is circumferentially closed, the detection membrane is disposed at a bottom of the recessed area, and the diaphragm covers the recessed area.

4. A terminal device, comprising a housing and the functional module as claimed in any one of claims 1 to 3, wherein the housing is provided with a sound hole, the position of the functional module is fixed relative to the position of the housing, and the sound hole is communicated to the diaphragm.

5. The terminal device according to claim 4, wherein the terminal device comprises a sealing member, the sealing member is disposed at the periphery of the sound hole, and two opposite sides of the sealing member are respectively connected to the diaphragm and the housing.

6. The terminal device of claim 5, wherein the seal is foam.

7. The terminal device of claim 5, wherein the sound hole forms a first opening and a second opening on opposite sides of the housing, the first opening is exposed at an outer surface of the housing, and an area enclosed by the first opening is smaller than an area enclosed by the second opening.

8. The terminal device according to claim 7, wherein the sound hole includes a first hole and a second hole communicating with the first hole, the first hole forms the first opening on an outer surface of the housing, the second hole forms the second opening on an inner surface of the housing, an area of any cross section of the first hole is equal, and an area of a cross section of the second hole gradually increases from the first opening side to the second opening side.

9. The terminal device of claim 7, wherein the seal has a through hole having a cross-sectional area equal to or greater than an area encompassed by the second opening.

10. The terminal device of claim 4, wherein the housing conceals the diaphragm.

11. The terminal device according to claim 10, wherein the sound hole includes a first hole and a second hole communicated with the first hole, the first hole extends to an outer surface of the housing, the second hole extends to an inner surface of the housing, an extending direction of the first hole is perpendicular to or inclined from an extending direction of the second hole, or at least one of the first hole and the second hole is an arc-shaped hole.

12. The terminal device according to claim 4, wherein the diaphragm is exposed from the sound hole to an outer surface of the housing.

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