CN210640915U - Mobile terminal - Google Patents

Abstract

The utility model provides a mobile terminal, it includes shell, apron and the first sound production device, second sound production device, heat source and the heat-conducting piece of mutual interval, the shell including running through first phonate hole and the second phonate hole on it, the phonate side and the first phonate hole intercommunication of first sound production device, the phonate side of second sound production device with second phonate hole intercommunication, the heat-conducting piece is fixed in the heat source, and the heat-conducting piece is certainly respectively the heat source extends to first sound production device and second sound production device and forms fixedly, and the heat that produces the heat source of heat-conducting piece transmission when first sound production device vibration sound production transmits to the shell sound production through first phonate hole, and the heat that produces the heat source of heat-conducting piece transmission when the second sound production device vibration gives off to the shell outside through second phonate hole. Compared with the prior art, the utility model discloses a mobile terminal's radiating efficiency is high and effectual.

Description

Mobile terminal

[ technical field ] A method for producing a semiconductor device

The utility model relates to an acoustoelectric field especially relates to a mobile terminal.

[ background of the invention ]

With the advent of the mobile internet age, the number of smart mobile devices is increasing. Among the mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. A large number of sound generating units for playing sound are used in smart mobile devices such as mobile phones.

The mobile terminal in the related art comprises a shell, a cover plate, a heat source and a heat dissipation copper pipe, wherein the cover plate is covered on the shell and forms an accommodating space together with the shell, the heat source is accommodated in the accommodating space, and at least part of the heat dissipation copper pipe is attached to the heat source; the heat dissipation copper pipe is arranged inside the mobile terminal, the heat dissipation copper pipe is generally attached to the middle frame of the shell, and the heat source dissipates heat through the middle frame.

However, in the related art, heat is easily accumulated inside the mobile terminal, and cannot be dissipated to the outside of the mobile terminal in time, so that heat is easily accumulated inside the mobile terminal, and a heat dissipation effect is poor. In addition, the heat dissipation copper pipe is generally adhered to the heat source at one end and the middle frame at the other end, and the structure can only dissipate heat at one end and is low in heat dissipation efficiency.

Therefore, there is a need to provide a new mobile terminal to solve the above technical problems.

[ Utility model ] content

An object of the utility model is to provide a high and effectual mobile terminal of radiating efficiency.

In order to achieve the above object, the present invention provides a mobile terminal, which comprises a housing, a cover plate covering the housing and enclosing a first receiving space with the housing, and a first sound generating device, a second sound generating device, a heat source and a heat conducting member installed in the first receiving space and spaced from each other, wherein the housing comprises a first sound hole and a second sound hole penetrating through the housing, the sound emitting side of the first sound generating device is communicated with the first sound hole, the sound emitting side of the second sound generating device is communicated with the second sound hole, the heat conducting member is fixed to the heat source, the heat conducting member extends from the heat source to the first sound generating device and the second sound generating device respectively and forms a fixation, the first sound generating device vibrates to generate sound while transferring heat generated by the heat source to the outside of the housing through the first sound hole, the second sound generating device generates sound by vibration and simultaneously radiates heat generated by the heat source transmitted by the heat conducting piece to the outside of the shell through the second sound outlet.

Preferably, the heat conducting member includes a connecting portion fixed to the heat source, a first end extending from one end of the connecting portion to the first sound emitting device and forming a fixed portion, and a second end extending from the other end of the connecting portion to the second sound emitting device and forming a fixed portion.

Preferably, the housing includes a bottom plate and a side wall extending from the periphery of the bottom plate in a bending manner, the cover plate is covered on one end of the side wall far away from the bottom plate, the side wall and the cover plate together enclose the first accommodating space, the first sound outlet is formed in the side wall, and the second sound outlet is formed in the bottom plate; the first sound-emitting device is simultaneously abutted and fixed on the bottom plate and the side wall, and the first end of the first sound-emitting device is fixed on one side of the first sound-emitting device, which is far away from the bottom plate; the second end is fixed in the bottom plate, the second end is equipped with the first through-hole that runs through on it, first through-hole with the second phonate hole intercommunication, the second phonate passes through the second end is fixed in the bottom plate.

Preferably, the first sound-generating device is a speaker box, which includes a housing having a second receiving space, a sound-generating unit received in the second receiving space, and a heat-conducting cover plate fixed to the housing; the sound-producing monomer comprises a first vibrating diaphragm used for vibrating and producing sound, the first vibrating diaphragm divides the second accommodating space into a front sound cavity and a rear cavity, the shell is provided with a second through hole penetrating through the shell, and the heat-conducting cover plate is arranged on the second through hole and encloses the front sound cavity together with the first vibrating diaphragm and the shell; a sound guide channel is formed in the shell, the front sound cavity is communicated with the first sound outlet hole through the sound guide channel and forms a front cavity together with the front sound cavity, and the first end of the sound guide channel is fixed on one side, far away from the first vibrating diaphragm, of the heat conduction cover plate.

Preferably, the heat-conducting cover plate is any one of a steel sheet and a copper sheet.

Preferably, the heat conducting member and the heat conducting cover plate are of an integrally formed structure.

Preferably, the second sound production device is the receiver, it includes the basin frame, set firmly respectively in the vibration system and the drive of basin frame the magnetic circuit and the lid that vibration system vibration sound production are located the basin frame is close to the protecgulum of vibration system one side, vibration system is including being fixed in the basin frame just is used for vibrating the second vibrating diaphragm of sound production, the second end is fixed in the protecgulum is kept away from one side of second vibrating diaphragm, the protecgulum is equipped with the third opening that runs through on it, the third opening loops through first opening with second sound outlet hole and outside air intercommunication.

Preferably, the heat conducting member is a hollow integrally formed structure, and the heat conducting member is filled with a heat conducting medium.

Preferably, the heat conducting member is a solid integrally formed structure.

Preferably, the heat source is any one of a processor and a battery.

Compared with the prior art, the utility model discloses a mobile terminal passes through the heat-conducting piece is fixed in the heat source, just the both ends of heat-conducting piece extend to respectively first sound production device with second sound production device forms fixedly, and this structure makes and works as first sound production device with second sound production device will in the vibration sound production the heat that the heat source produced passes through respectively first phonate hole with second phonate hole gives off extremely the shell is outside to thereby the heat has been avoided to the messenger is in the inside accumulation of mobile terminal, makes mobile terminal's radiating efficiency is high and effectual.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic perspective view of the mobile terminal of the present invention;

fig. 2 is an exploded schematic view of a part of the three-dimensional structure of the mobile terminal of the present invention;

fig. 3 is another exploded schematic view of a part of the three-dimensional structure of the mobile terminal of the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 1;

FIG. 5 is an enlarged view of the portion B of FIG. 4;

fig. 6 is an enlarged view of a portion C shown in fig. 4.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a mobile terminal 100.

Mobile terminal 100 include shell 1, apron 2, first sound production device 3, second sound production device 4, heat source 5 and heat-conducting part 6.

The housing 1 includes a bottom plate 11, a sidewall 12 extending from the periphery of the bottom plate 11, and a first sound outlet 101 and a second sound outlet 102 penetrating therethrough. In the present embodiment, the first sound outlet hole 101 is provided in the side wall 12; the second sound outlet 102 is disposed on the bottom plate 11. The first sound outlet 101 and the second sound outlet 102 are both used for transmitting sound and heat generated inside the mobile terminal 100 to the outside.

The cover plate 2 covers the housing 1. Specifically, the cover plate 2 covers one end of the side wall 12 far away from the bottom plate 11. The cover plate 2 and the housing 1 together enclose a first accommodating space 10. The cover 2 may be a screen, for example. Specifically, the bottom plate 11, the side wall 12 and the cover plate 2 together enclose the first accommodating space 10.

The first sound-emitting device 3 is mounted in the first housing space 10. The first sound generating device 3 is spaced apart from the second sound generating device 4 and the heat source 5, respectively. The first sound-emitting device 3 is fixed to the bottom plate 11 and the side wall 12 in abutment. The sound emitting side of the first sound emitting device 3 communicates with the first sound emitting hole 101. The first sound outlet hole 101 is disposed through the side wall 12. In the present embodiment, the first sound emitting device 3 has a side sound emitting structure. Namely, the first sound emitting device 3 vibrates to emit sound and transmits the sound to the outside through the first sound outlet hole 101.

The second sound-producing device 4 is mounted in the first housing space 10. The second sound generating device 4 is spaced apart from the first sound generating device 3 and the heat source 5, respectively. The sound emitting side of the second sound emitting device 4 is in communication with the second sound emitting aperture 102. The second sound-emitting device 4 vibrates to emit sound and transmits the sound to the outside through the second sound-emitting hole 102.

The heat source 5 is installed in the first receiving space 10. The heat source 5 is spaced apart from the first and second sound emitting devices 3 and 4, respectively. Specifically, the heat source 5 is disposed between the first sound generating device 3 and the second sound generating device 4. This structure facilitates the transfer of heat generated by the heat source 5 to the outside through the first and second sound emitting devices 3 and 4, respectively.

The heat source 5 is capable of generating heat. Specifically, the heat source 5 is an electronic component mounted on the mobile terminal 100, which can generate a large amount of heat during operation, and as an alternative embodiment, the heat source 5 is any one of a processor and a battery. Of course, without being limited thereto, other heat generating components, such as a screen, a sensor, etc., may be the heat source 5.

The heat-conducting member 6 is mounted in the first receiving space 10. The heat conducting member 6 is fixed to the heat source 5, and the heat conducting member 6 extends from the heat source 5 to the first sound generating device 3 and the second sound generating device 4 respectively and forms a fixed structure, so that the heat conducting member 6 transfers the heat of the heat source 5 to the first sound generating device 3 and the second sound generating device 4 respectively. The heat generated by the heat source 5 is transferred to the first sound generating device 3 and the second sound generating device 4 through the heat conducting member 6, and then the heat is transferred to the outside through the first sound generating device 3 and the second sound generating device 4. Specifically, the first sound generating device 3 vibrates to generate sound and simultaneously transfers heat generated by the heat source 5 transferred by the heat conducting member 6 to the outside of the housing 1 through the first sound outlet hole 101; the second sound generating device 4 vibrates to generate sound and simultaneously transmits the heat generated by the heat source 5 transmitted by the heat conducting member 6 to the outside of the housing 1 through the second sound outlet 102. The structure reasonably utilizes the vibration sound production of the first sound-producing device 3 and the second sound-producing device 4 to cause air circulation, so that heat produced by the heat source 5 is transferred to the outside, rather than only one first sound-producing device 3 or one second sound-producing device 4, and the heat dissipation efficiency of the mobile terminal 100 is high and the effect is good.

Specifically, the heat conducting member 6 includes a connecting portion 62 fixed to the heat source 5, a first end 61 extending from one end of the connecting portion 62 to the first sound emitting device 3 and forming a fixed portion, and a second end 63 extending from the other end of the connecting portion 62 to the second sound emitting device 4 and forming a fixed portion. Wherein, the first end 61 is fixed on the side of the first sound-emitting device 3 away from the bottom plate 11. The first end 61 and the second end 63 are equivalent to cold ends relative to the heat source 5, heat generated by the heat source 5 is transferred to the two cold ends through the heat conducting piece 6, the heat transferring mode of the structure is favorable for improving the heat dissipation efficiency, and the heat dissipation result is better. The heat dissipation will be specifically described below by specifically describing the structures of the first sound emitting device 3 and the second sound emitting device 4 in the present embodiment.

The first sound generating device 3 and the second sound generating device 4 may be the same sound generating device or different sound generating devices. In the present embodiment, the first sound-emitting device 3 is a speaker box. The first sound generating device 3 includes a housing 31, a sound generating unit 32, and a heat conductive cover plate 33 fixed to the housing 31. The housing 31 has a second receiving space 30. The structural form of the housing 31 is not limited, and it may be an integral structure or a separate structure. The sounding unit 32 is accommodated in the second accommodating space 30. The sound generating unit 32 includes a first diaphragm 321 for generating sound by vibration. The first diaphragm 321 divides the second accommodating space 30 into a front acoustic cavity 301 and a rear cavity 302. The back volume 302 is used to improve the low frequency acoustic performance of the first sound generating means 3. The housing 31 has a second opening 303 formed therethrough. The heat conducting cover plate 33 covers the second opening 303 and encloses the front acoustic cavity 301 together with the first diaphragm 321 and the housing 31. A sound guide channel 304 is formed in the housing 31, and the sound guide channel 304 communicates the front sound cavity 301 with the first sound outlet hole 101 and forms a front cavity 305 together with the front sound cavity 301, so as to form a side sound emitting structure. The front cavity 305 is used to improve the high frequency acoustic performance of the first sound emitting device 3.

In this embodiment, the first end 61 of the heat conducting member 6 is fixed to the side of the heat conducting cover plate 33 away from the first diaphragm 321. In this structure, heat generated by the heat source 5 is conducted to the first end 61 through the connecting portion 62 fixed thereon, the first end 61 conducts the heat to the front acoustic cavity 301 through the heat conductive cover plate 33, and the first diaphragm 321 vibrates to push air in the front acoustic cavity 301 to flow through the sound guide channel 304 to the outside. Specifically, when the first diaphragm 321 vibrates, the volume of the front acoustic cavity 301 changes: when the volume of the front acoustic cavity 301 becomes smaller, the first diaphragm 321 discharges part of the air in the front acoustic cavity 301 to the outside through the sound guide channel 304; when the volume of the front acoustic cavity 301 becomes larger, the first diaphragm 321 sucks the external space into the front acoustic cavity 301 through the sound guide channel 304; the above process causes the air in the front acoustic cavity 301 to be convected with the air outside. The vibration of the first diaphragm 321 causes the heat in the front acoustic cavity 301 to be dissipated out of the housing 31 along with the air circulation, thereby achieving the heat dissipation of the heat source 5, and making the heat dissipation effect of the speaker device 100 good.

The vibration of the first diaphragm 321 may be in a sound-emitting form or a non-sound-emitting form, and both the vibration and the non-sound-emitting form can radiate heat conducted into the front sound cavity 301 to the outside along with air circulation. So that the first sound-emitting device 3 can exclusively perform the work of heat dissipation.

Specifically, a pulse signal of a lower frequency is input to the first sound emitting device 3, and a low-frequency sound generated by the signal at the first sound emitting device 3 is not heard by the human ear. In this embodiment, the input lower frequency is below 1000 Hz. In a specific application, the first sound emitting device 3 can play the pulse signal alone when not executing a music playing task; the first sound emitting device 3 may also superimpose the pulse signal into the music signal when performing a music playing task. Because the signal is an ultra-low frequency pulse signal, the signal can not be heard by human ears and the normal listening effect is not influenced.

Preferably, the heat conducting cover plate 33 is made of a metal material with good heat conducting performance, and may be, but not limited to, any one of a steel sheet and a copper sheet, so that the heat conducting performance of the heat conducting cover plate 33 is good, and the heat conducting efficiency of the heat conducting cover plate 33 is ensured; meanwhile, the heat conducting cover plate 33 completely covers the second through hole 303 and is arranged corresponding to the first diaphragm 321, so that the high-frequency acoustic performance of the front acoustic cavity 301 is effectively improved, and the acoustic performance of the first sound-emitting device 3 is optimized.

Furthermore, in order to avoid the problem that the first end 61 falls off during use, as a preferred embodiment, the heat conducting member 6 and the heat conducting cover plate 33 are integrally formed, so that the fixing reliability of the two is higher, and the heat dissipation process is more reliable.

Preferably, the structure of the first end 61 is not limited, for example, in the present embodiment, the first end 61 is rectangular; the orthographic projection of the first end 61 to the heat conducting cover plate 33 along the vibration direction of the first diaphragm 321 completely falls on the heat conducting cover plate 33, so as to ensure the heat dissipation area between the first end 61 and the heat conducting cover plate 33, and ensure the reliability of heat dissipation.

Further, the width of the first end 61 is not limited, and may be specifically set according to the actual application, and the width of the first end is preferably greater than the width of the connecting portion 62, so that the contact area between the first end 61 and the heat conducting cover plate 33 is increased, the heat dissipation area is increased, and the heat dissipation efficiency is effectively improved.

Further, the heat conducting cover plate 33 at least partially falls on the first diaphragm 321 in the orthographic projection of the first diaphragm 321 to the first diaphragm 321 along the vibration direction of the first diaphragm 321. That is to say, the structure makes the heat conducting cover plate 33 directly face or partially face the first diaphragm 321, and the structure makes the part of the heat conducting cover plate 33 corresponding to the first diaphragm 321 in a high-speed airflow, and pushes the air to flow under the vibration of the first diaphragm 321, so as to push the air flowing near the heat conducting cover plate 33 in the front acoustic cavity 301 in time, thereby effectively taking away the heat conducted to the front acoustic cavity 301 by the first end 61 through the heat conducting cover plate 33 with the air, and achieving the air cooling effect by utilizing the air circulation generated by the vibration of the first diaphragm 321, so that the heat dissipation effect of the first acoustic device 3 is better.

In the present embodiment, the second end 63 of the heat conduction member 6 is fixed to the bottom plate 11. The second end 63 is provided with a first through hole 630 penetrating therethrough, and the first through hole 630 is communicated with the second sound outlet hole 102. This structure allows the second end 63 to conduct heat to the outside through the second sound outlet hole 102. The second sound producing device 4 is fixed to the base plate 11 through the second end 63. That is, the second sound emitting device 4 vibrates to emit sound and transfers the second end 63 to heat, and the heat is conducted to the outside through the second sound outlet hole 102.

The second sound production device 4 is a telephone receiver. Specifically, the second sound-generating device 4 includes a frame 41, a vibration system 42 respectively fixed to the frame 41, a magnetic circuit system 43 for driving the vibration system 42 to vibrate and generate sound, and a front cover 44 covering one side of the frame 41 close to the vibration system 42. The vibration system 42 includes a second diaphragm 421 fixed on the frame 41 and used for vibrating and sounding.

The front cover 44 is secured to the second end 63. Specifically, the second end 63 is fixed to a side of the front cover 44 away from the second diaphragm 421. The front cover 44 is used to fix the second sound-emitting device 4 to the base plate 11 via the fixing structure of the second end 63.

In order to transmit the sound generated by the vibration of the second diaphragm 421 of the second sound generating device 4 to the outside. The front cover 44 is provided with a third through hole 440 penetrating therethrough, and the third through hole 440 is communicated with the outside air sequentially through the first through hole 630 and the second sound outlet hole 102, so that the second diaphragm 421 vibrates and generates sound to radiate heat transferred from the second end 63 to the outside of the housing 1 through the air hole. This structure makes the first through hole 630 of the second end 63, the front cover 44 and the portion corresponding to the second diaphragm 421 be in the high-speed airflow, and pushes the air flow under the vibration of the second diaphragm 421, so as to push the air flow near the third through hole 440, the first through hole 630 and the second sound outlet 102 in time, thereby effectively taking away the heat transferred by the second end 63 through the first through hole 630 and the third through hole 440 of the front cover 44 with the air, and achieving the air-cooling effect by utilizing the air flow generated by the vibration of the second diaphragm 421, so as to make the heat dissipation effect of the first sound-emitting device 3 better.

It should be noted that the structural form of the heat conducting member 6 is not limited, and it may be a hollow integrally formed structure, and the interior of the heat conducting member 6 is filled with a heat conducting medium; the heat-conducting medium can be heat-conducting silicone grease with good heat-conducting property or cooling liquid; in a preferred embodiment, the heat-conducting medium is a volatile cooling liquid, such as water, and after the connecting portion 62 of the heat source 5 absorbs the heat of the heat source 5, the heat-conducting medium is vaporized, the vaporized heat-conducting medium is respectively transmitted to the first end 61 and the second end 63 along the hollow heat-conducting member 6, the first end 61 and the second end 63 absorb the heat of the vaporized heat-conducting medium, so that the heat-conducting medium releases heat and liquefies, the liquefied heat-conducting medium flows back to the connecting portion 62 of the heat source 5, and so on, a circulating heat dissipation cycle is formed inside the heat-conducting member 6.

Of course, it is also possible that the heat-conducting member 6 is a solid integrally molded structure. At this time, the heat conducting member 6 is made of a heat conducting material, such as heat conducting silicone grease or metal with good heat conducting property, and directly absorbs heat through the connecting portion 62 located at the heat source 5 and conducts the heat to the first end 61 and the second end 63, respectively.

Compared with the prior art, the utility model discloses a mobile terminal passes through the heat-conducting piece is fixed in the heat source, just the both ends of heat-conducting piece extend to respectively first sound production device with second sound production device forms fixedly, and this structure makes and works as first sound production device with second sound production device will in the vibration sound production the heat that the heat source produced passes through respectively first phonate hole with second phonate hole gives off extremely the shell is outside to thereby the heat has been avoided to the messenger is in the inside accumulation of mobile terminal, makes mobile terminal's radiating efficiency is high and effectual.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims (10)

1. A mobile terminal comprises a shell, a cover plate, a first sound generating device, a second sound generating device and a heat source, wherein the cover plate is arranged on the shell and encloses a first accommodating space together with the shell, the first sound generating device, the second sound generating device and the heat source are arranged in the first accommodating space and are spaced from each other, the shell comprises a first sound outlet and a second sound outlet which penetrate through the shell, the sound outlet side of the first sound generating device is communicated with the first sound outlet, the sound outlet side of the second sound generating device is communicated with the second sound outlet, the mobile terminal is characterized by further comprising a heat conducting piece, the heat conducting piece is fixed on the heat source, the heat conducting piece respectively extends from the heat source to the first sound generating device and the second sound generating device to form fixation, the first sound generating device vibrates to generate sound and simultaneously transfers heat generated by the heat source transferred by the heat conducting piece to the outside of the shell through the first sound outlet, the second sound generating device generates sound by vibration and simultaneously radiates heat generated by the heat source transmitted by the heat conducting piece to the outside of the shell through the second sound outlet.

2. The mobile terminal according to claim 1, wherein the heat conductive member includes a connection portion fixed to the heat source, a first end extending from one end of the connection portion to the first sound emitting device and forming a fixed, and a second end extending from the other end of the connection portion to the second sound emitting device and forming a fixed.

3. The mobile terminal according to claim 2, wherein the housing includes a bottom plate and a side wall extending from a periphery of the bottom plate in a bending manner, the cover plate covers an end of the side wall away from the bottom plate, the side wall and the cover plate together enclose the first receiving space, the first sound outlet is disposed on the side wall, and the second sound outlet is disposed on the bottom plate; the first sound-emitting device is simultaneously abutted and fixed on the bottom plate and the side wall, and the first end of the first sound-emitting device is fixed on one side of the first sound-emitting device, which is far away from the bottom plate; the second end is fixed in the bottom plate, the second end is equipped with the first through-hole that runs through on it, first through-hole with the second phonate hole intercommunication, the second phonate passes through the second end is fixed in the bottom plate.

4. The mobile terminal of claim 2, wherein the first sound generating device is a speaker box, which includes a housing having a second receiving space, a sound generating unit received in the second receiving space, and a heat conductive cover plate fixed to the housing; the sound-producing monomer comprises a first vibrating diaphragm used for vibrating and producing sound, the first vibrating diaphragm divides the second accommodating space into a front sound cavity and a rear cavity, the shell is provided with a second through hole penetrating through the shell, and the heat-conducting cover plate is arranged on the second through hole and encloses the front sound cavity together with the first vibrating diaphragm and the shell; a sound guide channel is formed in the shell, the front sound cavity is communicated with the first sound outlet hole through the sound guide channel and forms a front cavity together with the front sound cavity, and the first end of the sound guide channel is fixed on one side, far away from the first vibrating diaphragm, of the heat conduction cover plate.

5. The mobile terminal of claim 4, wherein the heat-conducting cover plate is any one of a steel sheet and a copper sheet.

6. The mobile terminal of claim 4, wherein the heat conducting member and the heat conducting cover are integrally formed.

7. The mobile terminal of claim 3, wherein the second sound-generating device is a receiver, and the second sound-generating device comprises a frame, a vibration system and a magnetic circuit system, the vibration system is respectively and fixedly disposed on the frame, the magnetic circuit system drives the vibration system to vibrate and generate sound, and a front cover is disposed on one side of the frame close to the vibration system, the vibration system comprises a second diaphragm fixed on the frame and used for vibrating and generating sound, the second end is fixed on one side of the front cover far away from the second diaphragm, the front cover is provided with a third through hole penetrating through the front cover, and the third through hole is communicated with outside air sequentially through the first through hole and the second sound-generating hole.

8. The mobile terminal of claim 1, wherein the heat conducting member is a hollow integrally formed structure, and an interior of the heat conducting member is filled with a heat conducting medium.

9. The mobile terminal of claim 1, wherein the thermal conductive member is a solid, one-piece structure.

10. The mobile terminal of claim 1, wherein the heat source is any one of a processor and a battery.

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