CN211531322U

CN211531322U - Loudspeaker device

Info

Publication number: CN211531322U
Application number: CN201922501144.6U
Authority: CN
Inventors: 刘鹏辉
Original assignee: AAC Technologies Pte Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-18
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a loudspeaker device, which comprises a heat exchanger, a loudspeaker box and a heat source device, wherein the heat exchanger comprises a heat exchange tube, a condensation end, a conduction part, an evaporation end, a heat exchange working medium and a flow passage; the heat exchange tube comprises a frame body and a connecting tube, the connecting tube comprises a first connecting tube, a second connecting tube and a third connecting tube, the flow channel is sequentially arranged at the evaporation end, the conduction part, the condensation inlet end, the heat exchange tube and the condensation outlet end and forms a closed ring shape, and a heat exchange working medium circularly flows in the flow channel. The utility model discloses an utilize the produced convection current air current of vibration of speaker box, carry out the heat transfer with the heat exchanger, become liquid from the gaseous state condensation with heat transfer working medium, the liquid flows back to the evaporation end, sets up through the connection and the range of connecting pipe, increases the windward position area of heat exchanger on the one hand, and on the other hand changes the flow property of the heat transfer working medium in the connecting pipe, makes the heat exchanger obtain improving with the efficiency of the heat convection of air, and the heat transfer is effectual, and heat exchange efficiency is high.

Description

Loudspeaker device

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electronic product technical field has and relates to a speaker device.

[ background of the invention ]

At present, a heat dissipation device of an electronic product is mainly cooled by wind and liquid, and the cooling by wind is a heat dissipation mode with extremely low utilization efficiency, and is widely applied due to simple structure and low cost; the liquid cooling adopts liquid working medium, can improve the heat transfer coefficient of heat transfer device part position, but its high heat transfer system part still needs to carry out the heat exchange with air system at last, this kind of mode causes its heat transfer performance easily to receive the low efficiency restriction of air-cooled, its heat transfer efficiency at the one end of heat source is high, to a certain extent, has reduced the treater temperature widely, however, the heat of liquid cooling transmission heat source end needs to transmit to the outside air fast, otherwise causes the temperature of collecting laminating heat pipe part easily, sharply rises, lasts, the heat will trace back to the heat source position, can cause the inefficacy of cell-phone performance.

The loudspeaker produces sound through vibration of the magnetic circuit system, air in the front cavity can be continuously sent out by the propagation medium (air) in the moving process of the sound film, and external air can enter the front cavity due to corresponding air pressure change, so that the process is circulated.

The electronic product has a large processor heat flow density, a short internal heat conduction path and a closed design, and cannot be provided with an air cooling device, and the air circulation at the loudspeaker is used as the only place of the whole mobile phone which can continuously exchange heat, so that the heat transfer device is designed, the surface temperature of the processor can be reduced to a certain extent, and the use limit of the mobile phone can be further improved.

The traditional speaker that has heat transfer device, the windward side of its design is comparatively mild, when causing gas to pass through the heat exchanger surface easily, the indiscriminate degree of gas flow is lower, on the energy exchange between gas molecule and heat exchanger surface, the heat transfer effect is poor, inefficiency.

[ Utility model ] content

An object of the utility model is to provide a loudspeaker device, it has overcome the defect of conventional art, and it can improve the indiscriminate degree of wadding of air, improves heat exchanger area, and then improves heat exchange efficiency.

In order to achieve the above purpose, the utility model provides the following technical scheme:

a loudspeaker device comprises a heat exchanger, a loudspeaker box and a heat source device spaced from the loudspeaker box, wherein the heat exchanger comprises a heat exchange tube connected with the loudspeaker box, a condensation end connected with the heat exchange tube, a conduction part connected with the condensation end, an evaporation end extending from the conduction part to the position far away from the condensation end, a heat exchange working medium and a flow channel;

the loudspeaker box comprises a shell with a first accommodating space, a sound production unit accommodated in the first accommodating space and a sound guide channel formed in the shell, wherein the sound production unit comprises a vibrating diaphragm for vibrating and producing sound, and the vibrating diaphragm divides the first accommodating space into a front sound cavity and a rear cavity; the sound guide channel connects the front sound cavity with the outside and forms a front cavity together with the front sound cavity;

the heat exchange tube is positioned in the sound guide channel and comprises a frame body fixedly connected with the shell and a plurality of connecting tubes arranged in the frame body, communication flow paths communicated with the connecting tubes are respectively arranged at the top and the bottom of the frame body, the connecting tubes comprise three connecting tubes which are adjacent at will, the three connecting tubes are respectively a first connecting tube and a second connecting tube and a third connecting tube which are positioned at two sides of the first connecting tube, the first connecting tube and the second connecting tube are communicated through the communication flow path at the top of the frame body, the first connecting tube and the third connecting tube are communicated through the communication flow path at the bottom of the frame body, the connecting tubes and the communication flow paths form a passage, and two ends of the passage are respectively communicated with an inlet and an outlet of the heat exchange tube;

the condensation end comprises a condensation outlet end and a condensation inlet end, the condensation inlet end is communicated with the inlet of the heat exchange tube, and the condensation outlet end is communicated with the outlet of the heat exchange tube;

the heat exchange working medium is filled in the heat exchanger, the flow channel is sequentially arranged at the evaporation end, the conduction part, the condensation inlet end, the heat exchange tube and the condensation outlet end to form a closed ring shape, and the heat exchange working medium circularly flows in the flow channel;

the heat source device is connected with the evaporation end.

As a further improvement of the utility model, the connecting pipe is arranged in a single row or multiple rows.

As a further improvement of the utility model, the connecting pipe includes two rows, is first tubulation array and second tubulation array respectively, first tubulation array is located the outer end of framework, the second tubulation array is located the inner of framework, the highest end place plane of first tubulation array is higher than the planar height in highest end place of second tubulation array, the planar height in lowest end place of first tubulation array is higher than the planar height in lowest end place of second tubulation array.

As a further improvement, the spoiler is provided on the pipe orifice of the connecting pipe, the outermost edge of the spoiler coincides with the diameter of the pipe orifice of the connecting pipe.

As a further improvement of the utility model, the heat exchange working medium is any one of organic working medium, inorganic working medium or solid heat exchange working medium without change of state.

As a further improvement of the present invention, the frame body includes an inner end and an outer end, the width of the inner end is smaller than the width of the outer end.

As a further improvement of the present invention, the communication flow path is arranged in an open manner, and the communication flow path and the pipe wall of the sound guide channel form a closed arrangement.

As a further improvement of the present invention, a heat sink member is provided on the surface of the communication flow path.

As a further improvement, the speaker box is provided with a metal dust screen on the sound guide channel, and the metal dust screen is arranged on the frame body.

As a further improvement of the present invention, the heat source device is any one of a processor and a battery.

The utility model has the advantages that: the utility model discloses a be provided with the heat exchanger in the speaker, the heat exchanger is installed in leading the sound passageway, utilize the produced convection current air current of vibration of speaker box, carry out the heat transfer with the heat exchanger, become the heat transfer working medium from the gaseous state condensation liquid, the liquid flows back to the evaporation end, through the connection and the range setting of connecting pipe, increase the windward position area of heat exchanger on the one hand, on the other hand changes the flow property of the heat transfer working medium in the connecting pipe, the efficiency that makes the heat exchanger and the convection heat transfer of air obtains improving, and the heat transfer is effectual, and heat exchange efficiency is high.

[ description of the drawings ]

Fig. 1 is a schematic perspective view of a speaker device according to the present invention;

fig. 2 is an exploded view of the speaker arrangement of fig. 1;

FIG. 3 is a schematic diagram of the heat exchanger shown in FIG. 2;

FIG. 4 is a schematic perspective view of the condensation end shown in FIG. 3;

FIG. 5 is a top view of the condensing end shown in FIG. 4;

FIG. 6 is an enlarged view at A shown in FIG. 5;

FIG. 7 is a bottom view of the condensing end shown in FIG. 5;

FIG. 8 is an assembled view of the condenser end and speaker box of FIG. 5;

FIG. 9 is a front view of the condenser end of FIG. 8 assembled with a speaker cabinet;

FIG. 10 is a cross-sectional view taken at B-B of FIG. 9;

FIG. 11 is an enlarged view at C shown in FIG. 10;

fig. 12 is a schematic structural view of the speaker device according to the present invention applied to a mobile terminal.

10, a heat exchanger; 11. a condensing end; 111. a condensation outlet end; 112. a condensation inlet end; 12. a conduction part; 13. an evaporation end; 14. a frame body; 140. an air duct; 15. a heat exchange pipe; 151. an outlet of the heat exchange tube; 152. an inlet of the heat exchange tube; 16. a communication flow path; 19. a connecting pipe; 191. a first connecting pipe; 192. a second connecting pipe; 193. a third connecting pipe; 194. a first array of tubes; 195. a second array of tubes; 196. a spoiler; 20. a speaker box; 21. a front cavity; 22. a housing; 23. a sounding monomer; 24. a sound guide channel; 30. a heat source device; 100. a speaker device; 200. a mobile terminal; 201. a second accommodating space; 202. a housing; 203. and a sound outlet channel.

[ detailed description ] embodiments

The following embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2:

the utility model provides a speaker device 100, this speaker device 100 include heat exchanger 10, speaker box 20 and with speaker box 20 spaced heat source device 30.

Referring to fig. 3 to 7 again, the heat exchanger 10 includes a heat exchange tube 15 connected to the speaker box 20, a condensation end 11 connected to the heat exchange tube 15, a conduction portion 12 connected to the condensation end 11, an evaporation end 13 extending from the conduction portion 12 to a position far away from the condensation end 11, a heat exchange working medium (not shown), and a flow channel.

Referring to fig. 2 again, the speaker box 20 has a front cavity 21 for generating sound, the heat exchange tube 15 is installed in the front cavity 21, the heat source device 30 is connected to the evaporation end 13, the evaporation end 13 conducts heat of the heat source device 30 to the heat exchange tube 15 through the conduction part 12, and the heat exchange tube 15 is installed in the front cavity 21 of the speaker box 20, so that active airflow exchange is formed when the speaker box 20 generates, and heat of the heat exchange tube 15 is rapidly dissipated through airflow communication.

Specifically, the speaker box 20 includes a housing 22 having a first receiving space, a sound generating unit 23 received in the first receiving space, and a sound guide channel 24 formed in the housing 22. The sound generating unit 23 includes a vibrating diaphragm for vibrating and generating sound, the vibrating diaphragm divides the first accommodating space into a front sound cavity and a rear cavity (not shown), and the sound guiding channel 24 communicates the front sound cavity with the outside and forms the front cavity 21 together with the front sound cavity.

Referring again to fig. 1 and 2, the heat exchange tube 15 is located within the sound conduction channel 24. Referring to fig. 4 to 7 again, the heat exchange tube 15 includes a frame 14 fixedly connected to the housing 22 and a plurality of connection tubes 19 disposed in the frame 14, the top and the bottom of the frame 14 are respectively provided with a communication flow path 16 communicated with the connection tubes 19, each connection tube 19 includes any adjacent three connection tubes 19, each of the three connection tubes 19 is a first connection tube 191 and a second connection tube 192 and a third connection tube 193 located at two sides of the first connection tube 191, the first connection tube 191 and the second connection tube 192 are communicated through the communication flow path 16 at the top of the frame 14, the first connection tube 191 and the third connection tube 193 are communicated through the communication flow path 16 at the bottom of the frame 14, the connection tubes 19 and the communication flow path 16 form a passage, and two ends of the passage are respectively communicated with an inlet and an outlet of the.

Referring again to fig. 3 and 7, the condensation end 11 includes a condensation outlet end 111 and a condensation inlet end 112, the condensation inlet end 112 is communicated with the inlet 152 of the heat exchange tube, and the condensation outlet end 111 is communicated with the outlet 151 of the heat exchange tube.

The heat exchange working medium is filled in the heat exchanger 10, the flow channel is sequentially arranged at the evaporation end 13, the conduction part 12, the condensation inlet end 112, the heat exchange tube 15 and the condensation outlet end 111 to form a closed ring shape, and the heat exchange working medium circularly flows in the flow channel.

Referring to fig. 8 to 11 again, the frame 14 has an air duct 140, the air duct 140 is disposed to increase from inside to outside, the frame 14 includes an inner end and an outer end, and the width of the inner end is smaller than that of the outer end.

Referring to fig. 10 and 11 again, the connecting tubes 19 are disposed in a single row or multiple rows, specifically, the connecting tubes 19 include two rows, which are a first row tube array 194 and a second row tube array 195, respectively, the first row tube array 194 is located at the outer end of the frame 14, the second row tube array 195 is located at the inner end of the frame 14, a plane where a highest end of the first row tube array 194 is located is higher than a plane where a highest end of the second row tube array 195 is located, and a plane where a lowest end of the first row tube array 194 is located is higher than a plane where a lowest end of the second row tube array 195 is located.

Referring to fig. 5 to 7, 10 and 11 again, the nozzle of the connecting tube 19 is provided with a spoiler 196, the spoiler 196 can further enhance the turbulent flow effect of the heat exchange medium in the tube to enhance the heat transfer capability, wherein the outermost edge of the spoiler 196 is coincident with the diameter of the nozzle of the connecting tube 19, and the adjacent spoilers 196 of the nozzles of the first row of tube arrays 194 and the spoilers 196 of the nozzles of the second row of tube arrays 195 are rotationally symmetric about the center line of the communication flow path 16 communicating the first row of tube arrays 194 and the second row of tube arrays 195.

The communication flow path 16 communicates with the conduction unit 12 and communicates with the first and

second arrays

194 and 195 of the adjacent connection pipes 19. The communication flow path 16 is arranged in an open manner, and the communication flow path 16 and the pipe wall of the sound guide channel 24 of the loudspeaker box 20 are arranged in a closed manner, so that the heat of the heat exchange working medium part can be radiated outwards through the pipe wall of the sound guide channel 24. In another embodiment, heat sink members (not shown) are disposed on two surfaces of the communication flow path 16 contacting with the pipe wall of the sound guide channel 24, so that the heat exchange working medium is distributed more uniformly on the two surfaces, the boundary layer of the heat exchange working medium can be further thinned, and the heat exchange thermal resistance is further reduced.

The heat transfer working medium can be, but is not limited to, organic working media (such as hydrochlorofluorocarbon and hydrofluorocarbon) or inorganic working media (such as ammonia and sulfur dioxide) and other substances with high heat exchange system. In another embodiment, the heat transfer working medium may also be a solid heat exchange working medium without change of state, such as a molten salt, which is composed of metal cations and non-metal anions, such as halides, nitrates, sulfates, etc. of alkali metals and alkaline earth metals, and has a higher heat exchange coefficient.

The evaporation end 13 is connected with the heat source device 30, the heat of the heat source device 30 is transferred to the heat exchange working medium inside the heat exchanger 10, and the heat exchange working medium is evaporated and condensed inside the heat exchanger 10 to transfer and transfer the heat, so that the purpose of heat dissipation is achieved.

The heat exchange tube 15 conducts heat to the sound guide channel 24, and the vibration of the vibrating diaphragm pushes air in the front sound cavity to circulate with the outside through the sound guide channel 24. Change of the volume of the front sound cavity when the diaphragm vibrates: when the volume of the front sound cavity becomes smaller, the vibrating diaphragm discharges part of air in the front sound cavity to the outside through the sound guide channel 24, when the front sound cavity becomes larger, the vibrating diaphragm inhales the outside air into the front sound cavity through the sound guide channel 24, and the air in the front sound cavity and the outside air realize convection in the above process. The produced air current of vibration of vibrating diaphragm passes through preceding sound chamber to leading sound passageway 24, when the air current flows in connecting pipe 19, absorb the heat of heat transfer working medium in the connecting pipe 19, make the heat transfer working medium from liquid condensation to liquid, distribute the heat in the connecting pipe 19 outside casing 22 along with the circulation of air, thereby realized the heat dissipation to heat source device 30, make speaker device 100's radiating effect good, liquid heat transfer working medium continues to flow to evaporation end 13 through conduction portion 12 under the promotion of the produced pressure effect of boil-off gas, heat source device 30 flows through once more, absorb the heat, the evaporation of heat transfer working medium is the gaseous state, flow to in the heat exchanger 10 through the runner, so circulate.

In this embodiment, a metal dust screen (not shown) is mounted on the sound guide channel 24 of the speaker box 20, and the metal dust screen is covered on the frame 14 to further increase the heat exchange area of the heat exchange tube 15.

In the present embodiment, the heat source device 30 is any one of a processor and a battery, but is not limited thereto.

It should be noted that the vibration of the diaphragm may be in a sound mode or a non-sound mode, and the heat conducted to the front sound cavity may be dissipated to the outside along with the air circulation. So that the speaker box 20 can exclusively perform the work of dissipating heat.

Specifically, a pulse signal of a lower frequency is input to the speaker box 20, and a low-frequency sound generated in the speaker box 20 is not heard by human ears. In this embodiment, the input lower frequency is below 1000 Hz. In a specific application, the speaker box 20 may play the pulse signal alone when not performing a music playing task; the speaker box 20 may also superimpose the pulse signal into the music signal while performing the music play 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.

Referring to fig. 12 again, when the speaker device 100 is applied to the mobile terminal 200, the mobile terminal 200 includes a housing 202 having a second receiving space 201 and the speaker device 100, and the speaker device 100 is installed in the second receiving space 201. The housing 202 is provided with a sound outlet channel 203 therethrough, the sound outlet channel 203 being in air communication with the front acoustic chamber through the sound guide channel 24 to dissipate heat conducted from the heat source device 30 to the front acoustic chamber through the heat exchanger 10 to the outside of the housing 202.

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

1. A speaker apparatus comprising a heat exchanger, a speaker box and a heat source device spaced from the speaker box, characterized in that: the heat exchanger comprises a heat exchange tube connected with the loudspeaker box, a condensation end connected with the heat exchange tube, a conduction part connected with the condensation end, an evaporation end extending from the conduction part to the position far away from the condensation end, a heat exchange working medium and a flow channel;

the heat exchange working medium is filled in the heat exchanger, the flow channel is sequentially arranged at the evaporation end, the conduction part, the condensation inlet end, the heat exchange tube and the condensation outlet end to form a closed ring shape, and the heat exchange working medium circularly flows in the flow channel.

2. The speaker device of claim 1, wherein: the connecting pipes are arranged in a single row or multiple rows.

3. The speaker device of claim 2, wherein: the connecting pipe comprises two rows of pipes, namely a first pipe array and a second pipe array, the first pipe array is located at the outer end of the frame body, the second pipe array is located at the inner end of the frame body, the plane where the highest end of the first pipe array is located is higher than the plane where the highest end of the second pipe array is located, and the plane where the lowest end of the first pipe array is located is higher than the plane where the lowest end of the second pipe array is located.

4. A speaker apparatus according to claim 3, wherein: the pipe orifice of the connecting pipe is provided with a spoiler, and the outermost edge of the spoiler is coincided with the diameter of the pipe orifice of the connecting pipe.

5. The speaker device of claim 1, wherein: the heat exchange working medium is any one of an organic working medium, an inorganic working medium or a solid heat exchange working medium without change of state.

6. The speaker device of claim 1, wherein: the frame body comprises an inner end and an outer end, and the width of the inner end is smaller than that of the outer end.

7. The speaker device of claim 1, wherein: the communication flow path is arranged in an open manner, and the communication flow path and the pipe wall of the sound guide channel are arranged in a closed manner.

8. The speaker device of claim 7, wherein: a heat sink member is provided on a surface of the communication flow path.

9. The speaker device of claim 1, wherein: and a metal dustproof net is arranged on the sound guide channel of the loudspeaker box and is covered on the frame body.

10. The speaker device of claim 1, wherein: the heat source device is any one of a processor and a battery.