CN210839668U

CN210839668U - Terminal device

Info

Publication number: CN210839668U
Application number: CN202020057256.7U
Authority: CN
Inventors: 金修禄
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-06-23
Anticipated expiration: 2030-01-10

Abstract

The present disclosure relates to a terminal device, including: a sounding body; the middle frame is provided with a groove which is sunken towards the direction away from the sounding body; the elastic piece is positioned in the accommodating space formed by the sounding body and the middle frame and is used for vibrating together with the sounding body when the sounding body sounds; the elastic piece divides the accommodating space into a first sound cavity and a second sound cavity containing a concave space formed by the groove. The embodiment of the disclosure can reduce the unsmooth air flow in the first sound cavity and the second sound cavity by stretching or compressing the air in the first sound cavity and the second sound cavity through the elastic part, and improve the output sound effect of the terminal equipment.

Description

Terminal device

Technical Field

The present disclosure relates to the field of audio processing technologies, and in particular, to a terminal device.

Background

Along with terminal equipment like the development of smart mobile phone, people are increasingly high to the loudness of smart mobile phone output audio and the demand of tone quality, and then need increase the design size of audio frequency module in order to improve audio output effect. However, the existing terminal equipment is developing towards integration and lightness and thinness, so that the audio output effect is improved on the existing terminal equipment by increasing the design size of the audio module, and the development trend is not suitable for the existing smart phone.

Disclosure of Invention

The present disclosure provides a terminal device.

According to an embodiment of the present disclosure, there is provided a terminal device including:

a sounding body;

the middle frame is provided with a groove which is sunken towards the direction away from the sounding body;

the elastic piece is positioned in the accommodating space formed by the sounding body and the middle frame and is used for vibrating together with the sounding body when the sounding body sounds;

the elastic piece divides the accommodating space into a first sound cavity and a second sound cavity containing a concave space formed by the groove.

In some embodiments, the terminal device further comprises:

a support structure located within the second sound cavity;

the elastic piece is positioned on the supporting structure.

In some embodiments, the terminal device further comprises: a connecting module;

the elastic member includes: the first part is connected with the connecting module, and the second part is other than the first part, wherein the connecting module is positioned between the first part and the supporting structure;

the first part is connected with the supporting structure through the connecting module;

the second portion and the support structure form a gap for the elastic member to vibrate.

In some embodiments, the support structure is provided with at least two through holes for air circulation.

In some embodiments, the through-holes are circular through-holes having a diameter in the range of 0.3 mm to 0.5 mm.

In some embodiments, the size of the through-hole is positively correlated with the aerodynamic pressure through the through-hole.

In some embodiments, the second sound cavity further includes a space for accommodating the power supply module in the middle frame, wherein the space for accommodating the power supply module is communicated with the recessed space formed by the groove.

In some embodiments, the terminal device further comprises: and the back shell is used for sealing the second sound cavity.

In some embodiments, the number of the elastic members is at least two, wherein different elastic members face different surfaces of the sounding body respectively.

In some embodiments, the extension dimension of the elastic member is smaller than or equal to the extension dimension of the diaphragm of the sounding body.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the embodiment of the disclosure provides set up the elastic component in the accommodation space, when the elastic component vibrates together along with the sound production body, the elastic component can promote the circulation of air through the tensile or compression of self, can reduce the not smooth condition of circulation of air, has improved terminal equipment's output audio. Simultaneously, this disclosed embodiment can improve the audio without the size that increases self, can be applicable to the terminal equipment towards the development trend that integrates and frivolous, and then has enlarged application range. In addition, this disclosed embodiment increases the volume in second sound chamber through set up the recess on the center, can reduce the condition that the sound chamber volume that leads to because of the design size of sound chamber module is compressed, can further improve terminal equipment's output audio.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the invention.

Fig. 1 is a first schematic structural diagram of a terminal device according to an exemplary embodiment.

Fig. 2 is a schematic structural diagram ii of a terminal device according to an exemplary embodiment.

Fig. 3 is a schematic structural diagram three of a terminal device according to an exemplary embodiment.

Fig. 4 is a fourth schematic structural diagram of a terminal device according to an exemplary embodiment.

Fig. 5 is a schematic structural diagram five of a terminal device according to an exemplary embodiment.

Fig. 6 is a sixth schematic structural diagram of a terminal device according to an exemplary embodiment.

Fig. 7 is a seventh structural diagram illustrating a terminal device according to an exemplary embodiment.

Fig. 8 is a schematic structural diagram eight illustrating a terminal device according to an exemplary embodiment.

Fig. 9 is a block diagram illustrating a structure of a terminal device according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

Among the correlation technique, because terminal equipment towards the development that integrates with frivolous, the terminal equipment who has the audio frequency module is reserved for the design size of audio frequency module and is compressed, and then makes the cavity volume in the sound chamber module limited, exists because of the limited poor problem of terminal equipment output audio effect that leads to of sound chamber volume. Based on this, the embodiment of the present disclosure provides a terminal device. Fig. 1 is a first schematic structural diagram of a terminal device according to an exemplary embodiment. As shown in fig. 1, the terminal device includes:

a sounding body 101;

a middle frame 102 having a groove depressed in a direction away from the sounding body;

the elastic piece 103 is positioned in an accommodating space formed by the sounding body and the middle frame and is used for vibrating together with the sounding body when the sounding body sounds;

In this embodiment of the disclosure, the terminal device may be a wearable electronic device and a mobile terminal, where the mobile terminal includes a smart phone, a notebook computer, and a tablet computer, and the wearable electronic device includes a smart watch, and the embodiment of the disclosure is not limited.

The middle frame comprises a frame of the terminal equipment and a frame enclosed by the frame, and the frame can enclose an enclosed area. The sounding body is located in the closed area, is used for converting an electric signal into an acoustic signal and radiating the acoustic signal to an electroacoustic conversion device outside the terminal equipment, and is widely applied to the terminal equipment needing the acoustic signal output, for example, the sound signal output by the sounding body of the smart phone is used for listening to music, calling reminding, voice man-machine interaction and the like.

The sound production principle of above-mentioned sound production body is including based on self elastic deformation sound production, perhaps utilizes magnetic field and permanent magnetic material interact in order to produce the vibration, and then drives the elastic component vibration and sound production. The sounding body includes, but is not limited to, a piezoelectric body formed of a ceramic material or a sounding body formed of a permanent magnetic material and an elastic member.

In the embodiment of the disclosure, the sounding body can divide the closed area into the first cavity and the second cavity, and the elastic element is located in the second cavity corresponding to the accommodating space formed by the sounding body and the middle frame. And, the elastic component can divide the second cavity body to form a first sound cavity and a second sound cavity.

In the embodiment of the present disclosure, the terminal device further includes a sound outlet, the first cavity is communicated with the sound outlet through the cavity channel, the first cavity can be a front cavity of the audio module, and can output the acoustic signal to the sound outlet through the cavity channel and output the acoustic signal to the outside of the housing through the sound outlet.

Illustratively, the cavity channel includes, but is not limited to, a cavity tube, which may be a hard tube formed by hard plastic, and may also be a flexible tube formed by soft plastic, and the embodiments of the present disclosure are not limited thereto.

In other embodiments, the opening of the first cavity is aligned with and attached to the sound outlet. Thus, the first cavity can directly output the acoustic signal to the outside of the shell through the aligned and attached sound outlet hole.

It should be noted that the sound outlet may be disposed on the housing corresponding to the first cavity, and may also be disposed on the housing corresponding to the second cavity, which is not limited in the embodiment of the disclosure.

The second cavity can be a rear cavity of the audio module, and the volume of the rear cavity can influence the loudness and tone quality of the audio output by the audio module. The larger the back cavity volume of the audio module is, the better the loudness and tone quality of the corresponding output audio are, and the better the audio module output sound effect is.

In the embodiment of the disclosure, the elastic piece is arranged in the accommodating space and can vibrate together with the sounding body when the sounding body sounds. That is to say, the sound production body can promote the circulation of air in the second cavity through the compression of self or tensile when the vibration, and then drives the elastic component vibration that is located the second cavity. In this way, the air circulation of the first sound cavity and the second sound cavity in the second cavity can be further promoted through the vibration of the elastic member.

In the disclosed embodiment, the elastic member includes, but is not limited to, a plastic diaphragm, a metal diaphragm, an alloy diaphragm, or a synthetic fiber diaphragm, wherein the plastic diaphragm may be a diaphragm formed of a polypropylene (pp) material, and the metal or alloy diaphragm may be a diaphragm formed of an aluminum, aluminum alloy, or titanium material, and the disclosed embodiment is not limited thereto.

The shape of the elastic member includes a rectangle, an ellipse, or a circle, and embodiments of the present disclosure are not limited.

As shown in fig. 2, the middle frame 102 has a groove 104 recessed in a direction away from the sounding body 101. It should be noted that the groove can be dug on each surface of the middle frame by taking the sounding body as a center, so that a concave space as large as possible can be obtained to further increase the volume of the second sound cavity.

Illustratively, the depth of the groove in examples of the present disclosure may be greater than 0.5 millimeters.

It should be noted that, in the related art, the powder filling particles are added in the sound cavity to improve the audio output effect on the basis of not increasing the design size of the audio module. However, the problem of adding powder particles is that the cost of the audio module is high and the design of the audio module is complicated.

Based on this, this disclosed embodiment has provided and has set up the elastic component in the accommodation space, and when the elastic component vibrates together along with the sound production body, the elastic component can promote the circulation of air through the tensile or compression of self, can reduce the not smooth condition of circulation of air, has improved terminal equipment's output audio. Simultaneously, this disclosed embodiment can improve the audio without the size that increases self, can be applicable to the terminal equipment towards the development trend that integrates and frivolous, and then has enlarged application range. In addition, this disclosed embodiment increases the volume in second sound chamber through set up the recess on the center, can reduce the condition that the sound chamber volume that leads to because of the design size of sound chamber module is compressed, can further improve terminal equipment's output audio.

In some embodiments, as shown in fig. 3, the terminal device further includes:

a support structure 105 located within the second sound cavity;

the elastic member 103 is located on the support structure.

Above-mentioned bearing structure is used for supporting the vibrating diaphragm for the elastic component can vibrate together with the vibrating diaphragm of sound production body in the sound chamber, and then promotes the circulation of air in the sound chamber through self tensile or compression.

In other embodiments, the support structure is a support structure formed from a metal or alloy material.

Illustratively, the support structure includes, but is not limited to, a metal perforated plate.

In some embodiments, as shown in fig. 4, the terminal device further includes: a connection module 106;

the elastic member 103 includes: a first portion connected to the connection module 106 and a second portion other than the first portion, wherein the connection module 106 is located between the first portion and the support structure;

said first portion is connected to said supporting structure 105 through said connection module 106;

the second portion forms a gap with the support structure 105 for the elastic member 103 to vibrate.

That is to say, the first portion of elastic component passes through the connection module to be fixed on bearing structure, and the second portion can vibrate together with the sound production body in the clearance between second portion and bearing structure, and then realizes that the elastic component can follow the vibration of sound production body, so, has promoted the circulation of air in the sound cavity, and then can promote the utilization efficiency of air.

The connecting module includes, but is not limited to, a double-sided tape.

The first portion may be an edge portion of the elastic member, including but not limited to a portion of the edge of the elastic member, or all of the edge of the elastic member. When the elastic member is rectangular in shape, the first portion may be opposite two edges; when the shape of the elastic member is an ellipse, the first portion is the entire edge of the ellipse, and embodiments of the present disclosure are not limited.

The second part is the other part of the elastic piece except the first part, and when the first part is the edge part, the second part is the middle part except the edge part.

In the embodiment of the disclosure, the first portion is set as the edge portion of the elastic member, so that the connection area between the elastic member and the supporting structure can be reduced, the area of the elastic member capable of vibrating can be increased, and the area of the elastic member stretching or compressing the peripheral air can be increased.

In some embodiments, as shown in fig. 5, the support structure 105 is provided with at least two through holes 107 for air to flow through.

In the embodiment of the disclosure, the at least two through holes are arranged on the supporting structure, so that the situation that air in the second sound cavity is not smooth due to blocking of the supporting structure can be reduced, air circulation in the second sound cavity can be promoted, and the output sound effect of the terminal device can be improved; and the provision of at least two through holes promotes air circulation over a larger area in the second sound chamber.

In other embodiments, at least two through holes on the support structure are distributed at intervals at corresponding positions of the second part of the elastic element.

The second part of the elastic part corresponds to the vibration part, and the through holes are distributed at intervals on the second part of the elastic part, so that air needing to be circulated can be discharged from one side of the through holes to the other side in time, and the situation that the air in the second sound cavity is not smooth is reduced.

In an embodiment of the disclosure, the distribution of the at least two through holes on the support structure is associated with the position of the air circulation within the second sound cavity. It should be noted that the air flow volume at different positions on the support structure in the second sound cavity is different, and at least two through holes may be provided at positions where the air flow volume is large. For example, the air flow amount at the a position is larger than the air flow amount at the B position on the support structure, the through hole may be provided at the a position. Therefore, air at a position with large air flow volume can be discharged in time, and the situation that air in the second sound cavity is not smooth is further reduced.

It should be noted that, by simulating the flowing condition of the air in the second sound cavity, the size of the through hole arranged at the position where the aerodynamic pressure value corresponding to the flowing of the air is large is larger than the size of the through hole arranged at the position where the aerodynamic pressure value is small, so that the size of the through hole can be reasonably set before leaving the factory, and the through hole can timely discharge the air in the subsequent audio output process.

In some embodiments, as shown in fig. 6, the second sound cavity further includes a space for accommodating the power module 108 in the middle frame, wherein the space for accommodating the power module is communicated with the recessed space formed by the recess.

In the embodiment of the present disclosure, the terminal device further includes a power supply module, where the power supply module is configured to supply power to each functional module in the terminal device. In terminal equipment, the position of this power module is adjacent with the position of holding sound production body, so, can through the space of intercommunication holding power module with the sunken space that the recess formed, further increased the volume in second sound chamber, improved the audio effect of terminal equipment output.

It should be noted that the space for accommodating the power supply module and the recessed space formed by the groove can be communicated through the communication channel. The communication channel includes, but is not limited to, a communication pipe, and the communication pipe may be a hard pipe formed by hard plastic, and may also be a hose formed by soft plastic, and embodiments of the present disclosure are not limited thereto.

Through this disclosed embodiment not only increased the volume in second sound chamber, improved the audio effect of terminal equipment output, can also increase the circulation of two sound intracavity air through the vibration of vibrating diaphragm, further improved terminal equipment's output audio.

In some embodiments, as shown in fig. 7, the terminal device further includes: a back shell 109 for sealing the second sound chamber.

It should be noted that, in the embodiment of the present disclosure, the sound cavity is sealed by the back shell, so that the situation that the internal space of the terminal device is occupied due to the additional arrangement of other sealing structures can be reduced, and the space utilization rate of the terminal device can be further improved.

In other embodiments, a damping structure is arranged on the surface of the back shell facing the power supply module;

the thicknesses of the shock absorption structures at different positions are positively correlated with the aerodynamic pressure values received by the positions and the vibration amplitude of the middle frame corresponding to the positions.

The damping structure is used for buffering the influence of air flow in the second sound cavity and vibration propagation of the middle frame on the back shell. The shock absorbing structure is formed of a shock absorbing material. For example, the shock absorbing material includes, but is not limited to, foam, sponge, or pearl wool.

In the embodiment of the disclosure, the aerodynamic pressure values at different positions of the damping structure and the vibration amplitude of the corresponding middle frame can be determined by simulating the air flow condition in the second sound cavity and the vibration condition of the middle frame, and then targeted setting can be performed according to different use scenes when the thickness of the damping structure is set.

It should be noted that, the thicker the thickness of shock-absorbing structure is, the thicker the air flow that it can cushion the corresponding of bigger aerodynamic pressure value to and can cushion bigger vibration, consequently, in the position department that aerodynamic pressure value is big and the middle frame vibration range is big, can set up thicker shock-absorbing structure to furthest's reduction vibration is to the influence of dorsal scale, and then reduces the condition that user perception trembles, improves user experience and feels.

For example, the shock absorbing structure may have a uniform thickness or a gradual thickness, and the embodiments of the present disclosure are not limited thereto.

In some embodiments, as shown in fig. 8, the number of the elastic members 103 is at least two, wherein different elastic members 103 face different surfaces of the sounding body 101.

It should be noted that different elastic components are towards the different surfaces of sound production body respectively, through vibrating together with the sound production body can promote the circulation of air in the sound cavity different regions based on self stretching or compression, have promoted the whole circulation nature of the air in the sound cavity, and then have improved the output audio of audio module.

In the embodiments of the present disclosure, the number of the elastic members may be two, four, or more, and the embodiments of the present disclosure are not limited. When the number of the elastic pieces is four and the sounding body is similar to a rectangle, the four elastic pieces can respectively face four different surfaces of the sounding body, and the two surfaces of the sounding body can respectively correspond to the sounding hole and the front cavity; when the number of the elastic members is more, for example, five, two elastic members may be disposed to face the same surface of the sounding body, and the other three elastic members may face surfaces different from the sound outlet and the front cavity, which is not limited by the embodiments of the present disclosure.

In other embodiments, the support structure has a U-shaped cross-sectional shape.

In the embodiment of the disclosure, the elastic members may be spaced at positions of the supporting structure facing different surfaces of the sounding body. For example, when the support structure faces two different surfaces of the sound generating body, two elastic pieces may be arranged at intervals at positions where the support structure faces the two different surfaces, so that the two elastic pieces may respectively face the two different surfaces of the sound generating body; when the supporting structure faces four different surfaces of the sounding body, the four elastic pieces can be arranged at positions of the supporting structure facing the four different surfaces at intervals, so that the four elastic pieces can face the four different surfaces of the sounding body respectively.

So, this disclosed embodiment can be through setting up the different surfaces of bearing structure orientation sound production body, and then make the elastic component that sets up on bearing structure can be towards the different surfaces of sound production body for the elastic component of different orientations can promote the circulation of air in the sound intracavity different regions through self stretching or compression, has promoted the whole circulation nature of the air in the sound intracavity, and then has improved terminal equipment's output audio. Meanwhile, the arrangement of the plurality of elastic pieces is beneficial to further reducing the unsmooth air flow in the sound cavity, and the output sound effect of the terminal equipment can be improved.

The expansion dimension of the elastic member is the dimension of the elastic member in the natural state. The developed size of the diaphragm is the size of the diaphragm in a natural state. The natural state is a state in which the diaphragm or the elastic member is neither stretched nor compressed.

In the embodiment of the disclosure, the larger the size of the elastic member is, the larger the area of air circulation promoted by the compression or the stretching of the elastic member is, and the situation that the air in the accommodating space is not circulated can be further reduced.

It should be noted that "first" and "second" in the embodiments of the present disclosure are merely for convenience of description and distinction, and have no other specific meaning.

With regard to the apparatus in the above-described embodiment, the specific manner in which each unit performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here.

Fig. 9 is a block diagram illustrating a terminal device structure according to an example embodiment. For example, the terminal device may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.

Referring to fig. 9, the terminal device may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.

The processing component 802 generally controls overall operation of the terminal device, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the terminal device. Examples of such data include instructions for any application or method operating on the terminal device, contact data, phonebook data, messages, pictures, videos, etc. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power component 806 provides power to various components of the terminal device. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the terminal device.

The multimedia component 808 comprises a screen providing an output interface between the terminal device and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. When the terminal device is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the terminal device is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor component 814 includes one or more sensors for providing various aspects of state assessment for the terminal device. For example, sensor assembly 814 may detect the open/closed status of the terminal device, the relative positioning of components, such as the display and keypad of the terminal device, the change in position of the terminal device or a component of the terminal device, the presence or absence of user contact with the terminal device, the orientation or acceleration/deceleration of the terminal device, and the change in temperature of the terminal device. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communication between the terminal device and other devices in a wired or wireless manner. The terminal device may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the terminal device may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A terminal device, comprising:

a sounding body;

2. The terminal device according to claim 1, wherein the terminal device further comprises:

a support structure located within the second sound cavity;

the elastic piece is positioned on the supporting structure.

3. The terminal device according to claim 2, wherein the terminal device further comprises: a connecting module;

4. A terminal device according to claim 2, characterized in that the support structure is provided with at least two through holes for air circulation.

5. A terminal device according to claim 4, characterized in that the through hole is a circular through hole having a diameter in the range of 0.3 mm to 0.5 mm.

6. The terminal device according to claim 4, wherein the size of the through-hole is positively correlated with the dynamic pressure of air passing through the through-hole.

7. The terminal device according to any one of claims 1 to 6, wherein the second cavity further comprises a space for accommodating the power module in the middle frame, wherein the space for accommodating the power module is communicated with the recessed space formed by the groove.

8. The terminal device according to any one of claims 1 to 6, wherein the terminal device further comprises: and the back shell is used for sealing the second sound cavity.

9. The terminal device according to any one of claims 1 to 6, wherein the number of the elastic members is at least two, and wherein different elastic members face different surfaces of the sounding body respectively.

10. The terminal device according to any one of claims 1 to 6, wherein the extension size of the elastic member is smaller than or equal to the extension size of the diaphragm of the sounding body.