CN210986145U - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
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- CN210986145U CN210986145U CN201921729350.6U CN201921729350U CN210986145U CN 210986145 U CN210986145 U CN 210986145U CN 201921729350 U CN201921729350 U CN 201921729350U CN 210986145 U CN210986145 U CN 210986145U
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- heat
- cover plate
- heat conducting
- sound
- mobile terminal
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Abstract
The utility model provides a mobile terminal, which comprises a shell, a cover plate, a loudspeaker box, a heat source and a heat conducting piece; the loudspeaker box comprises a shell with a second accommodating space, a sounding monomer accommodated in the second accommodating space and a heat-conducting cover plate; the sound production monomer comprises a vibrating diaphragm, the vibrating diaphragm divides the second accommodating space into a front sound cavity and a rear cavity, and the shell is provided with a sound guide channel which communicates the front sound cavity with the outside and forms the front cavity together with the front sound cavity; the shell is provided with a through hole communicated with the front cavity, and the heat-conducting cover plate is covered on the through hole; the shell is provided with a sound hole which is arranged corresponding to the sound guide channel, and the sound guide channel is communicated with the outside through the sound hole; the heat conducting piece is connected with the heat source and the loudspeaker box, the heat conducting piece comprises a first end fixed on the heat conducting cover plate, a second end spaced from the first end and fixed on the heat source, and a connecting part connected with the first end and the second end, and one side, far away from the heat conducting cover plate, of the first end is attached to the shell. Compared with the prior art, the utility model discloses a mobile terminal's radiating effect is good.
Description
[ 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.
However, in the related art, the intelligent mobile device can emit heat in the using process, and along with the prolonging of the service life of the electronic device, the heat is easily accumulated inside the mobile terminal, and cannot be timely dissipated to the outside of the mobile terminal, so that the heat is easily accumulated inside the mobile terminal, and the heat dissipation effect is poor.
Therefore, there is a need to provide a new speaker device and a mobile terminal to solve the above-mentioned technical problems.
[ Utility model ] content
An object of the utility model is to provide a mobile terminal that the radiating effect is good.
In order to achieve the above object, the present invention provides a mobile terminal, which includes a housing, a cover plate covering the housing and enclosing a first receiving space together with the housing, a speaker box and a heat source and a heat conducting element respectively received in the first receiving space and spaced from each other; the loudspeaker box comprises a shell with a second accommodating space, a sounding monomer accommodated in the second accommodating space and a heat conducting cover plate fixed on the shell; the sound-producing monomer comprises a vibrating diaphragm for vibrating and producing sound, the vibrating diaphragm divides the second accommodating space into a front sound cavity and a rear cavity, the shell is provided with a sound guide channel for communicating the front sound cavity with the outside, and the sound guide channel and the front sound cavity together form a front cavity; the shell is provided with a through hole which penetrates through the shell and is communicated with the front cavity, and the heat-conducting cover plate is covered on the through hole; the shell is provided with a sound hole which is arranged corresponding to the sound guide channel in a penetrating way, and the sound guide channel is communicated with the outside through the sound hole; the heat conducting piece is connected with the heat source and the heat conducting piece of the loudspeaker box, the heat conducting piece comprises a first end fixed on one side, far away from the vibrating diaphragm, of the heat conducting cover plate, a second end arranged at an interval with the first end and fixed on the heat source, and a connecting part connected with the first end and the second end, and one side, far away from the heat conducting cover plate, of the first end is attached to the shell.
Preferably, the shell includes a body opposite to the cover plate and arranged at an interval, and a side wall extending from the periphery of the body to the direction close to the cover plate and fixed to the cover plate, the shell is fixed to the side wall and enables the heat-conducting cover plate to face the body, the sound hole penetrates through the side wall, and the first end is clamped between the heat-conducting cover plate and the body and is attached to the body.
Preferably, the connecting portion is attached to the body and/or the side wall.
Preferably, the heat-conducting cover plate at least partially falls on the diaphragm along the forward projection of the diaphragm to the diaphragm in the vibration direction of the diaphragm.
Preferably, the first end is completely attached to the heat-conducting cover plate.
Preferably, the heat conducting member is strip-shaped, and the width of the first end is greater than that of the connecting portion.
Preferably, the heat conducting member and the heat conducting cover plate are of an integrally formed structure.
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 housing includes an upper cover and a lower cover covering the upper cover and forming the second receiving space together; the through hole penetrates through the upper cover, and the sound guide channel is formed in the upper cover; the heat-conducting cover plate, the vibrating diaphragm and the upper cover jointly enclose the front sound cavity, and the lower cover, the upper cover and the vibrating diaphragm jointly enclose the rear cavity.
Compared with the prior art, the loudspeaker device of the utility model is provided with the heat conducting piece for connecting the loudspeaker box and the heat source, the heat conducting piece comprises a first end fixed on one side of the heat conducting cover plate, which is far away from the vibrating diaphragm, a second end arranged at an interval with the first end and fixed on the heat source, and a connecting part for connecting the first end and the second end, one side of the first end, which is far away from the heat conducting cover plate, is attached to the shell; on the one hand, the heat source passes through heat-conducting piece with heat conduction to heat conduction apron and enter into preceding sound chamber, the air of sound intracavity loops through the sound channel before the vibrating diaphragm vibration promotes, the phonate hole circulates with external world, so that the heat of sound intracavity is dispelled to the casing along with the circulation of air in the front by first end heat dissipation, realize the convection heat dissipation with the help of the speaker box promptly, on the other hand, directly dispel the heat to the shell through first end with the heat at least, dispel the heat through the shell promptly, through the combination of the above-mentioned two aspects, radiating efficiency has been increased effectively, thereby heat inside the accumulation at mobile terminal has been avoided, make mobile terminal's radiating effect good.
[ 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 an exploded schematic view of the three-dimensional structure of the speaker box of the present invention;
fig. 4 is a sectional view taken along line a-a in fig. 1.
[ 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. 1-4, the present invention provides a mobile terminal 100, which includes a speaker box 1 for generating sound, a heat source 2 spaced apart from the speaker box 1, a heat conducting member 3, a housing 4, and a cover plate 5.
The speaker box 1 includes a housing 11, a sound generating unit 12, and a heat conductive cover 13.
Specifically, the housing 11 has a second receiving space 10, the housing 11 has a through hole 1101 penetrating therethrough, and the housing 11 further has a sound guide channel 1102 formed therein.
The structural form of the housing 11 is not limited, and it may be an integral structure or a separate structure; for example, in the present embodiment, the housing 11 has a separate structure, and includes an upper cover 111 and a lower cover 112 covering the upper cover 111 and forming the second receiving space 10. The through hole 1101 is disposed through the upper cover 111, and the sound guide passage 1102 is formed in the upper cover 111.
The sound generating unit 12 is accommodated in the second accommodating space 10, and includes a diaphragm 121 for vibrating and generating sound, and the diaphragm 121 divides the second accommodating space 10 into a front sound cavity 101 and a rear cavity 102.
The heat conducting cover plate 13 is fixed to the housing 11, and more specifically, the heat conducting cover plate 13 is covered on the through hole 1101, and the heat conducting cover plate 13, the diaphragm 121 and the housing 11 together enclose the front sound cavity 101, that is, in this embodiment, the heat conducting cover plate 13, the diaphragm 121 and the upper cover 111 together enclose the front sound cavity 101, the sound guiding channel 1102 connects the front sound cavity 101 with the outside and forms a front cavity 110 together with the front sound cavity 101, so as to form a side sound emitting structure, and the through hole 1101 is connected with the front cavity 110; the lower cover 112, the upper cover 111 and the diaphragm 121 together enclose the rear cavity 102 for improving the low frequency acoustic performance of the loudspeaker enclosure 1.
The heat source 2 is capable of generating heat. Specifically, the heat source 2 is an electronic component mounted on the mobile terminal 200, which can generate a large amount of heat during operation, and as an alternative embodiment, the heat source 2 is any one of a processor and a battery. Of course, without limitation, other heat generating components, such as a cover plate, a sensor, etc., may be the heat source 2.
The two ends of the heat conducting member 3 are respectively connected to the speaker box 1 and the heat source 2 for realizing heat conduction between the speaker box 1 and the heat source 2.
In the present embodiment, the heat conductive member 3 includes a first end 31, a second end 32, and a connecting portion 33.
The first end 31 is attached to and fixed on one side of the heat-conducting cover plate 13 away from the diaphragm 121, and serves as a condensation end of the heat-conducting member 3; the second end 32 and the first end 31 are arranged at intervals and are attached and fixed to the heat source 2; the connecting portion 33 connects the first end 31 and the second end 32.
The cover plate 5 covers the housing 4 and encloses a first accommodating space 40 together with the housing 4.
In the present embodiment, the speaker box 1 and the heat source 2 are respectively accommodated in the first accommodating space 40 and spaced from each other, and the heat conducting member 3 is at least partially attached to the housing 4, for example, the side of the first end 31 away from the heat conducting cover 13 is attached to the housing 4; the housing 4 is provided with a sound hole 420 penetrating therethrough, the sound hole 420 is disposed corresponding to the sound guide channel 1102, 0, and the sound guide channel 1102 is communicated with the outside air through the sound hole 420.
Further, the housing 4 includes a body 41 opposite to and spaced apart from the cover plate 5, and a sidewall 42 extending from a periphery of the body 41 in a direction approaching the cover plate 5 and fixed to the cover plate 5; the housing 11 is fixed to the side wall 41, the heat conducting cover plate 13 is disposed to face the body 41, the sound hole 420 is disposed to penetrate the side wall 42, and the first end 31 is sandwiched between the heat conducting cover plate 13 and the body 41 and attached to the body 41.
In the above structure, on one hand, heat generated by the heat source 2 is conducted to the second end 32 and conducted to the first end 31 through the connecting portion 33, the first end 31 conducts the heat to the front acoustic cavity 101 through the heat conductive cover 13, and the diaphragm 121 vibrates to push air in the front acoustic cavity 101 to flow through the sound guide channel 1102 to the outside. Specifically, when the diaphragm 121 vibrates, the volume of the front acoustic cavity 101 changes: when the volume of the front acoustic cavity 101 becomes smaller, the diaphragm 121 discharges part of the air in the front acoustic cavity 101 to the outside through the sound guide channel 1102 and the sound hole 420 in sequence; when the volume of the front acoustic cavity 101 becomes larger, the diaphragm 121 sucks the outside air into the front acoustic cavity 101 through the acoustic holes 420 and the acoustic channel 1102 in sequence; in the above process, the air in the front acoustic cavity 101 and the air outside realize convection, that is, the vibration of the diaphragm 121 causes the heat in the front acoustic cavity 101 to be dissipated to the outside of the mobile terminal 100 along with the circulation of the air, and the heat dissipation of the heat source 2 is realized by virtue of the convection action of the speaker box 1; the vibration of the diaphragm 121 may be in a sound mode or a non-sound mode, and both the vibration and the non-sound mode can radiate heat conducted into the front sound cavity 101 to the outside along with air circulation. So that the speaker cabinet 1 can exclusively perform a heat dissipation work; specifically, a pulse signal of a lower frequency is input to the speaker box 1, and low-frequency sound generated in the speaker box 1 is not heard by human ears. In this embodiment, the input lower frequency is below 1000 Hz. In a specific application, the loudspeaker box 1 can play the pulse signal independently when not executing a music playing task; the loudspeaker enclosure 1 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.
On the other hand, the heat conducting member 3 directly conducts heat to the housing at least through the attachment of the first end 31, that is, the heat dissipation of the heat source 2 is realized by utilizing the heat dissipation effect of the housing, so that the heat dissipation area of the heat conducting member 3 is effectively increased, and the heat dissipation efficiency is improved.
The structure effectively increases the heat dissipation efficiency by combining the two aspects, thereby avoiding the heat accumulation inside the mobile terminal 100 and ensuring the good heat dissipation effect of the mobile terminal 100.
Further, the heat conducting cover 13 at least partially falls on the diaphragm 121 in the forward projection of the diaphragm 121 to the diaphragm 121 along the vibration direction of the diaphragm 121. That is to say, the structure makes the heat conducting cover plate 13 face or partially face the diaphragm 121, and the structure makes the portion of the heat conducting cover plate 13 corresponding to the diaphragm 121 in the high-speed airflow, and pushes the air to flow under the vibration of the diaphragm 121, so as to push the air flow near the heat conducting cover plate 13 in the front acoustic cavity 101 in time, thereby effectively taking away the heat conducted to the front acoustic cavity 101 by the first end 31 through the heat conducting cover plate 13 with the air, and achieving the air cooling effect by utilizing the air circulation generated by the vibration of the diaphragm 121, so as to make the heat dissipation effect of the speaker device 100 better.
Preferably, the first end 31 is completely attached to the heat conducting cover plate 13, that is, the first end 31 is completely located within the range of the heat conducting cover plate 13, so as to ensure the reliability of heat dissipation.
Further, the shape of the heat conducting member 3 is not limited, in this embodiment, the heat conducting member 3 is in a strip shape, at this time, the width of the first end 31 is not limited, and it may be specifically set according to the actual application, and the width of the first end 31 is preferably greater than the width of the connecting portion 33, so that the contact area between the first end 31 and the heat conducting cover plate 13 is increased, the heat dissipation area is increased, and the heat dissipation efficiency is effectively improved; the width of the second end 32 is also not limited, and may be specifically set according to the actual application, and the width is preferably greater than the width of the connection portion 33, so that the contact area between the second end 32 and the heat source 2 is increased, the heat absorption area is increased, and the heat absorption efficiency is effectively improved.
In order to increase the heat dissipation area between the heat conductor 3 and the housing 4, the second end 32 and/or the connecting portion 33 may be attached to the housing 4 in addition to the first end 31 attached to the housing 4, and the portion of the heat conductor 3 attached to the housing 4 may be specifically provided according to the actual situation.
Preferably, the position where the connecting portion 33 is fixed to the housing 4 is not limited, specifically, the connecting portion 33 is attached to the body 41 and/or the sidewall 42, which may be specifically set according to the actual use situation, for example, in the present embodiment, the connecting portion 33 is attached to the body 41, and during the heat conduction process of the heat conducting member 3, the connecting portion 33 directly radiates a part of heat outwards through the body 41, so as to achieve the heat dissipation effect on the heat source 2, effectively increase the contact area between the heat conducting member 3 and the housing 4, that is, increase the effective heat dissipation area therebetween, and further optimize the heat dissipation effect of the mobile terminal 100.
Of course, in order to further enhance the heat dissipation effect, the heat conducting member 3 may be completely attached to the housing 4, that is, the first end 31, the second end 32 and the connecting portion 33 are all attached to the housing 4, and this arrangement maximizes the contact area between the heat conducting member 3 and the housing 4, that is, the heat dissipation area therebetween, thereby further optimizing the heat dissipation effect.
It should be noted that the structural form of the heat conducting member 3 is not limited, and it may be a hollow integrally formed structure, and the interior of the heat conducting member 3 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, the second end 32 absorbs the heat of the heat source 2 to vaporize the heat-conducting medium, the vaporized heat-conducting medium is transmitted to the first end 31 along the hollow connecting portion 33, the first end 31 absorbs the heat of the vaporized heat-conducting medium, so that the heat-conducting medium releases heat and is liquefied, the liquefied heat-conducting medium flows back to the second end 32 through the connecting portion 33, and so on, and a circulating heat dissipation cycle is formed inside the heat-conducting member 3.
Of course, it is also possible that the heat conducting member 3 is a solid integrally formed structure, in this case, the heat conducting member 3 is made of a heat conducting material, such as heat conducting silicone grease or metal with good heat conducting performance, and directly absorbs heat through the second end 32 and conducts the heat to the first end 31 through the connecting portion 33.
Furthermore, in order to avoid the problem that the first end 31 falls off during the use process, as a preferred embodiment, the heat conducting member 3 and the heat conducting cover plate 13 are integrally formed, so that the fixing reliability of the two is higher, and the heat dissipation process is more reliable.
Preferably, the heat conducting cover plate 13 is made of a metal material with good heat conducting performance, and the metal material can be, but is 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 13 is good, and the heat conducting efficiency of the heat conducting cover plate 13 is ensured; meanwhile, the heat-conducting cover plate 13 completely covers the through hole 1101 and is arranged corresponding to the diaphragm 121, so that the high-frequency acoustic performance of the front acoustic cavity 101 is effectively improved, and the acoustic performance of the loudspeaker box 1 is optimized.
Compared with the prior art, the loudspeaker device of the utility model is provided with the heat conducting piece for connecting the loudspeaker box and the heat source, the heat conducting piece comprises a first end fixed on one side of the heat conducting cover plate, which is far away from the vibrating diaphragm, a second end arranged at an interval with the first end and fixed on the heat source, and a connecting part for connecting the first end and the second end, one side of the first end, which is far away from the heat conducting cover plate, is attached to the shell; on the one hand, the heat source passes through heat-conducting piece with heat conduction to heat conduction apron and enter into preceding sound chamber, the air of sound intracavity loops through the sound channel before the vibrating diaphragm vibration promotes, the phonate hole circulates with external world, so that the heat of sound intracavity is dispelled to the casing along with the circulation of air in the front by first end heat dissipation, realize the convection heat dissipation with the help of the speaker box promptly, on the other hand, directly dispel the heat to the shell through first end with the heat at least, dispel the heat through the shell promptly, through the combination of the above-mentioned two aspects, radiating efficiency has been increased effectively, thereby heat inside the accumulation at mobile terminal has been avoided, make mobile terminal's radiating effect good.
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 loudspeaker box and a heat source, wherein the cover plate is covered on the shell and encloses a first accommodating space together with the shell; the loudspeaker box comprises a shell with a second accommodating space, a sounding monomer accommodated in the second accommodating space and a heat conducting cover plate fixed on the shell; the sound-producing monomer comprises a vibrating diaphragm for vibrating and producing sound, the vibrating diaphragm divides the second accommodating space into a front sound cavity and a rear cavity, the shell is provided with a sound guide channel for communicating the front sound cavity with the outside, and the sound guide channel and the front sound cavity together form a front cavity; the shell is provided with a through hole which penetrates through the shell and is communicated with the front cavity, and the heat-conducting cover plate is covered on the through hole; the mobile terminal is characterized in that the mobile terminal further comprises a heat conducting piece connected with the heat source and the loudspeaker box, the heat conducting piece comprises a first end fixed on one side of the heat conducting cover plate, a second end arranged at an interval with the first end and fixed on the heat source, and a connecting part connected with the first end and the second end, wherein the first end is far away from the heat conducting cover plate, and one side of the first end, far away from the heat conducting cover plate, is attached to the shell.
2. The mobile terminal of claim 1, wherein the housing includes a body opposite to the cover plate and disposed at an interval, and a sidewall extending from a periphery of the body in a direction close to the cover plate and fixed to the cover plate, the housing is fixed to the sidewall and the heat-conductive cover plate is disposed toward the body, the sound hole is disposed through the sidewall, and the first end is sandwiched between the heat-conductive cover plate and the body and attached to the body.
3. The mobile terminal of claim 2, wherein the connecting portion is attached to the body and/or the sidewall.
4. The mobile terminal of claim 1, wherein the heat-conducting cover plate at least partially falls on the diaphragm in an orthographic projection of the diaphragm in a vibration direction of the diaphragm.
5. The mobile terminal of claim 4, wherein the first end is completely attached to the thermally conductive cover plate.
6. The mobile terminal of claim 5, wherein the heat conducting member is a bar, and a width of the first end is greater than a width of the connecting portion.
7. The mobile terminal of claim 5, wherein the heat conducting member and the heat conducting cover are integrally formed.
8. The mobile terminal of claim 7, 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 7, wherein the thermal conductive member is a solid, one-piece structure.
10. The mobile terminal of claim 1, wherein the housing comprises an upper cover and a lower cover covering the upper cover and forming the second receiving space together; the through hole penetrates through the upper cover, and the sound guide channel is formed in the upper cover; the heat-conducting cover plate, the vibrating diaphragm and the upper cover jointly enclose the front sound cavity, and the lower cover, the upper cover and the vibrating diaphragm jointly enclose the rear cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921729350.6U CN210986145U (en) | 2019-10-15 | 2019-10-15 | Mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921729350.6U CN210986145U (en) | 2019-10-15 | 2019-10-15 | Mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210986145U true CN210986145U (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921729350.6U Expired - Fee Related CN210986145U (en) | 2019-10-15 | 2019-10-15 | Mobile terminal |
Country Status (1)
| Country | Link |
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| CN (1) | CN210986145U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062116A1 (en) * | 2020-09-22 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2022110313A1 (en) * | 2020-11-30 | 2022-06-02 | 瑞声声学科技(深圳)有限公司 | Loudspeaker box and mobile terminal |
-
2019
- 2019-10-15 CN CN201921729350.6U patent/CN210986145U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062116A1 (en) * | 2020-09-22 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Sound production device |
| WO2022110313A1 (en) * | 2020-11-30 | 2022-06-02 | 瑞声声学科技(深圳)有限公司 | Loudspeaker box and mobile terminal |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200710 |