Heat dissipation module

Abstract

The invention provides a heat dissipation module. The heat dissipation module comprises a uniform temperature plate and a sound production device attached and fixed to the uniform temperature plate. The temperature-uniforming plate comprises a temperature-uniforming plate body internally provided with an accommodating cavity, a capillary core accommodated in the accommodating cavity and an opening part formed in one side, close to the sound production device, of the temperature-uniforming plate body; the containing cavity is communicated with the outside through the opening part, the sound production device is supported on the vapor chamber body and is partially fixed to the opening part to seal the opening part, and heat dissipation liquid is contained in the containing cavity; the sound production device comprises a magnetic circuit system spaced from the vapor chamber, and a first vibration system and a second vibration system which are arranged on two opposite sides of the magnetic circuit system, and the magnetic circuit system drives the first vibration system and the second vibration system to vibrate; the sounding device further comprises a first basin frame, one end of the first basin frame is fixed on one side of the magnetic circuit system close to the uniform temperature plate, and the other end of the first basin frame is supported on the uniform temperature plate and surrounds the opening part. Compared with the prior art, the heat dissipation module has the advantages that the heat dissipation effect is good, and the installation space is saved.

Description

[Technical field]

[0001] The present invention relates to the technical field of electronic equipment, and in particular to a heat dissipation module. [Background technology]

[0002] With the continuous development of society, the communications industry has always maintained a high level of attention to the heat dissipation of electronic devices such as mobile phones and tablets. With the advent of the 5G era, the power of heating components and speakers is getting higher and higher, and the temperature is getting higher and higher, resulting in poor thermal reliability of heating components and speakers. As a heat dissipation component, the heat dissipation module is light and thin, and because it has a divergent steam path and good 2D surface thermal conductivity, its heat dissipation effect is better than that of the fin heat sink. Applying it to electronic equipment can avoid performance loss caused by poor product heat dissipation.

[0003] In the related art, the heat dissipation module generally includes a sound-generating device and a temperature-averaging plate installed on the sound-generating device, and the heat generated by the sound-generating device during operation is dissipated through the temperature-averaging plate. The commonly used temperature-averaging plate includes a shell, a capillary core formed in the shell, a plurality of support columns arranged in the shell, and a liquid working medium arranged in the capillary core. The sound-generating device is mounted on the heat source surface of the shell, and the liquid working medium flows along the capillary core to bring the heat to the heat dissipation surface of the shell for heat dissipation. However, since the sound-generating device is mounted on the shell, the overall installation space is increased. At the same time, the VC temperature-averaging plate used inside the mobile phone relies on gravity and capillary action to passively reflux after the water vapor condenses, which can easily lead to untimely reflux, causing "uniform temperature rise" inside the mobile phone after long-term high-load operation, thereby completely failing the convection and resulting in poor heat dissipation effect.

[0004] Therefore, it is necessary to provide a new heat dissipation module to solve the above problems. [Summary of the invention]

[0005] The technical problem to be solved by the present invention is to provide a heat dissipation module which has an active heat dissipation function, fast heat dissipation and saves installation space.

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a heat dissipation module, the heat dissipation module includes a temperature averaging plate and a sound generating device attached and fixed to the temperature averaging plate;

[0007] The temperature equalizer includes a temperature equalizer body with a receiving cavity inside, a capillary core received in the receiving cavity, and an opening portion opened on a side of the temperature equalizer body close to the sound-generating device; the opening portion connects the receiving cavity with the outside, the sound-generating device is supported by the temperature equalizer body and partially fixed to the opening portion to seal the opening portion, and the receiving cavity contains heat dissipation liquid; the sound-generating device includes a magnetic circuit system spaced apart from the temperature equalizer and a first vibration system and a second vibration system arranged on opposite sides of the magnetic circuit system, and the magnetic circuit system drives the first vibration system and the second vibration system to vibrate;

[0008] The sound-generating device further includes a first basin frame, one end of which is fixed to a side of the magnetic circuit system close to the temperature averaging plate, and the other end of which is supported by the temperature averaging plate and arranged around the opening;

[0009] The first vibration system includes a first diaphragm fixed to a side of the first basin close to the temperature equalizing plate and a first voice coil driving the first diaphragm to vibrate and produce sound; the first diaphragm is arranged opposite to the opening to seal the opening.

[0010] Preferably, the capillary core is arranged in a ring shape in the accommodating cavity, and the opening portion cuts the capillary core to form two fractures; the heat dissipation module also includes a first one-way valve and a second one-way valve, the first one-way valve and the second one-way valve are respectively sealed and arranged in the accommodating cavity, and the first one-way valve and the second one-way valve are spaced apart from each other on opposite sides of the first diaphragm, and respectively seal the two fractures of the capillary core.

[0011] Preferably, at least a portion of the first diaphragm is inserted into the opening.

[0012] Preferably, the first diaphragm includes a first annular fixing portion, a first folded ring portion formed by bending and extending the inner circumference of the first fixing portion in a direction away from the first basin and at least partially inserted in the opening portion, a first vibrating portion formed by bending and extending the inner circumference of the first folded ring portion in a direction away from the first basin, and a first ball top covered and fixed to the first vibrating portion; the first fixing portion is respectively fixed between the temperature equalizing plate body and the first basin on both sides along the vibration direction of the first vibration system, and the first voice coil is fixed to the side of the first vibrating portion away from the temperature equalizing plate body.

[0013] Preferably, the heat dissipation module further comprises a heat-insulating diaphragm, and the heat-insulating diaphragm is adhered and fixed to a surface of one side of the magnetic circuit system close to the temperature homogenizing plate.

[0014] Preferably, the heat dissipation module also includes a second basin frame, which is fixed to the outer periphery of the magnetic circuit system; the second vibration system includes a second diaphragm whose outer periphery is fixed to a side of the second basin frame away from the temperature equalizing plate and a second voice coil that drives the second diaphragm to vibrate and produce sound, and the magnetic circuit system is provided with a first magnetic gap and a second magnetic gap surrounding the first magnetic gap, the first voice coil is inserted and suspended in the first magnetic gap, and the second voice coil is inserted and suspended in the second magnetic gap.

[0015] Preferably, the magnetic circuit system includes an annular magnetic bowl arranged on the side of the first basin away from the uniform temperature plate and a magnetic steel assembly fixed to the magnetic bowl; the magnetic bowl includes an annular magnetic bowl bottom wall and a magnetic bowl side wall formed by bending and extending the inner circumference of the magnetic bowl bottom wall toward the uniform temperature plate; the magnetic steel assembly includes a lower clamping plate fixed to the side of the first basin away from the uniform temperature plate, a first main magnetic steel and a secondary magnetic steel stacked and fixed to the side of the lower clamping plate away from the first basin, and a second main magnetic steel stacked and fixed to the side of the magnetic bowl bottom wall away from the first basin; the first main magnetic steel is fixed to the side of the magnetic bowl bottom wall close to the first basin; the first main magnetic steel and the magnetic bowl side wall are spaced apart from each other to form the first magnetic gap; the first main magnetic steel and the secondary magnetic steel are spaced apart from each other to form an annular gap, and the second voice coil is at least partially inserted in the gap.

[0016] Preferably, the heat dissipation module also includes an upper clamping plate, which is stacked and fixed on a side of the auxiliary magnetic steel away from the lower clamping plate, and the bottom wall of the magnetic bowl and the upper clamping plate are spaced apart to form a gap opening, and the gap and the gap opening together form the second magnetic gap.

[0017] Preferably, the second main magnetic steel passes through along the vibration direction of the second vibration system to form a through hole, and the through hole is opposite to the space enclosed by the side wall of the magnetic bowl.

[0018] Preferably, the second diaphragm is provided with a sound outlet hole penetrating therethrough, and the sound outlet hole is arranged correspondingly to the through hole and is connected to each other.

[0019] Preferably, the heat dissipation module also includes an elastic support component fixed to the second basin; the elastic support component includes an auxiliary diaphragm fixed to the side of the second basin close to the temperature equalizing plate, an elastic part fixed to the side of the second basin close to the first vibration system, and a conductive member formed by bending and extending the inner circumference of the elastic part in a direction away from the second basin, the conductive member is used to form an electrical connection with the first voice coil and the second voice coil, respectively, and the elastic part is fixed between the auxiliary diaphragm and the second basin.

[0020] Compared with the related art, in the heat dissipation module of the present invention, the sound-generating device is fixed on the temperature-averaging board by fitting, and the temperature-averaging board includes a temperature-averaging board body with a accommodating cavity inside, a capillary core accommodated in the accommodating cavity, and an opening portion opened by the temperature-averaging board body on a side close to the sound-generating device; the opening portion connects the accommodating cavity with the outside, the sound-generating device is supported on the temperature-averaging board body and partially fixed on the opening portion to seal the opening portion, and the accommodating cavity contains heat dissipation liquid; the magnetic circuit system drives the first vibration system and the second vibration system to vibrate; one end of the first basin frame is fixed on a side of the magnetic circuit system close to the temperature-averaging board, and the other end of the first basin frame is supported on the temperature-averaging board and arranged around the opening portion; the first vibration system includes a first diaphragm fixed to the first basin frame and a first voice coil that drives the first diaphragm to vibrate and produce sound, the first diaphragm is arranged opposite to the opening portion to seal the opening portion, and the first voice coil drives the first diaphragm to vibrate, which can actively increase the flow rate of the heat dissipation liquid and improve the heat dissipation performance of the temperature-averaging board to the sound-generating device; at the same time, the first diaphragm is arranged in the opening portion, which effectively reduces the overall installation space of the heat dissipation module.

Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0022] Figure 1 A schematic diagram of the structure of a heat dissipation module provided by an embodiment of the present invention;

[0023] Figure 2 A partial structural exploded view of a heat dissipation module provided by an embodiment of the present invention;

[0024] Figure 3 For along Figure 1 A partial schematic diagram of the cross-sectional view along line AA;

[0025] Figure 4 for Figure 2 Exploded view of the sound-generating device;

[0026] Figure 5 for Figure 2 A schematic diagram of the structure of the first diaphragm of the sound-generating device;

[0027] Figure 6 for Figure 2 A schematic diagram of the structure of the skeleton of the sound-generating device;

[0028] Figure 7 For along Figure 2 Cross-sectional view along line BB. [Specific implementation method]

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 7 As shown, an embodiment of the present invention provides a heat dissipation module 100, which includes a temperature averaging board 1 and a sound generating device 2 attached and fixed to the temperature averaging board 1. The temperature averaging board 1 is used to provide heat dissipation effect for the sound generating device 2 when it is working.

[0031] The temperature equalizer 1 includes a temperature equalizer body 11 having a housing cavity 12, a capillary core (not shown in the figure) contained in the housing cavity, and an opening 13 opened on one side of the temperature equalizer body 11 close to the sound-generating device 2; the opening 13 connects the housing cavity 12 with the outside, the sound-generating device 2 is supported by the temperature equalizer body 11 and partially inserted and fixed in the opening 13 to seal the opening 13, and the housing cavity 12 contains heat dissipation liquid. By arranging the sound-generating device 2 in the opening 13, the sound-generating device 2 vibrates to actively drive the heat dissipation liquid to flow to take away the heat of the heat dissipation module 100, and the heat is discharged through the temperature equalizer body 11, thereby improving the heat dissipation performance of the heat dissipation module 100.

[0032] The temperature equalizer 1 can be extended to the audio end to effectively utilize the overall layout of the existing mobile phone without adding extra space; a separate vibration system is used to push the heat dissipation liquid in the temperature equalizer 1 to achieve a rapid heat dissipation effect.

[0033] In this embodiment, the sound-generating device 2 includes a first basin frame 21, a first vibration system 22, a magnetic circuit system 23, a second basin frame 24 and a second vibration system 25. The magnetic circuit system 23 is arranged at intervals from the temperature plate 1, and the magnetic circuit system 23 drives the first vibration system 22 and the second vibration system 25 to vibrate.

[0034] The first frame 21 is used to install and fix the first vibration system 22. One end of the first frame 21 is fixed to the side of the magnetic circuit system 23 close to the temperature plate 1, and the other end of the first frame 21 is supported by the temperature plate 1 and arranged around the opening 13.

[0035] The first vibration system 22 includes a first diaphragm 221 fixed to the first basin frame 21 on the side close to the temperature equalizing plate 1 and a first voice coil 222 for driving the first diaphragm 221 to vibrate and produce sound; the first diaphragm 221 is arranged opposite to the opening 13 to seal the opening 13. By combining the temperature equalizing plate 1 with the first diaphragm 221 of the sound-generating device 2, the temperature equalizing plate 1 with passive heat dissipation is transformed into an active heat dissipation structure. By driving the first diaphragm 221 to vibrate through the first voice coil 222, the flow rate of the heat dissipation liquid can be actively increased, thereby improving the heat dissipation performance of the temperature equalizing plate 1 to the sound-generating device 2; at the same time, the first diaphragm 221 is arranged in the opening 13, which effectively reduces the overall installation space of the heat dissipation module 100.

[0036] The second basin frame 24 is fixed to the outer periphery of the magnetic circuit system 23 .

[0037] The second vibration system 25 includes a second diaphragm 251 whose outer periphery is fixed to the side of the second basin frame 24 away from the magnetic circuit system 23, and a second voice coil 252 that drives the second diaphragm 251 to vibrate and produce sound. By driving the first vibration system 22 and the second vibration system 25 to vibrate and produce sound respectively through a single magnetic circuit system 23, the acoustic performance of the sound-generating device 2 can be improved.

[0038] In this embodiment, the capillary core is arranged in the accommodating cavity in an annular shape, and the opening 13 cuts the capillary core to form two fractures; the heat dissipation module 100 also includes a first one-way valve 14 and a second one-way valve 15, which are respectively sealed and arranged in the accommodating cavity 12, and the first one-way valve 14 and the second one-way valve 15 are arranged at opposite sides of the first diaphragm 221 at intervals, and respectively seal the two fractures of the capillary core. The first one-way valve 14 and the second one-way valve 15 are arranged on both sides of the first diaphragm 221, and the flow directions of the first one-way valve 14 and the second one-way valve 15 are the same. For example, the heat dissipation liquid can first pass through the circulation arrangement of the first one-way valve 14, the first diaphragm 221 and the second one-way valve 15 in sequence, so that the heat dissipated by the first vibration system 22 during the circulation process of the heat dissipation liquid is taken out, and the vibration active heat dissipation effect is achieved. Of course, the heat dissipation liquid may also first pass through the second one-way valve 15, the first diaphragm 221 and the first one-way valve 14 in sequence through a circulation arrangement. The function is the same as described above and will not be described here.

[0039] In this embodiment, at least a portion of the first diaphragm 221 is inserted into the opening 13 .

[0040] In this embodiment, the first diaphragm 221 includes a first annular fixing portion 2211, a first folding ring portion 2212 formed by bending and extending the inner circumference of the first fixing portion 2211 in a direction away from the first basin frame 21 and at least partially inserted into the opening portion 13, a first vibrating portion 2213 formed by bending and extending the inner circumference of the first folding ring portion 2212 in a direction away from the first basin frame 21, and a first ball top 2214 fixed to the first vibrating portion 2213; the first fixing portion 2211 is respectively fixed between the temperature evaporating plate body 11 and the first basin frame 21 on both sides of the vibration direction of the first vibration system 22, and the first voice coil 222 is fixed to the side of the first vibrating portion 2213 away from the temperature evaporating plate body 11. The first vibrating portion 2213 is driven to vibrate by energizing the first voice coil 222, and a first ball top 2214 is provided on the first vibrating portion 2213 to further increase the vibration performance of the first diaphragm 221.

[0041] In this embodiment, the heat dissipation module 100 further includes a heat insulation film (not shown in the figure), which is attached and fixed to the side of the lower clamping plate 2321 close to the temperature averaging plate 1. The provision of the heat insulation film can prevent the heat of the sound-generating device itself from affecting the heat dissipation effect of the temperature averaging plate.

[0042] In this embodiment, the magnetic circuit system 23 is spaced apart from the temperature equalizing plate 1 , and the magnetic circuit system 23 is fixed to a side of the first basin frame 21 away from the temperature equalizing plate 1 .

[0043] In this embodiment, the magnetic circuit system 23 includes an annular magnetic bowl 231 arranged on the side of the first basin frame 21 away from the uniform temperature plate 1 and a magnetic steel component 232 fixed to the magnetic bowl 231; the magnetic bowl 231 includes a magnetic bowl bottom wall 2311 and a magnetic bowl side wall 2312 formed by bending and extending the inner periphery of the magnetic bowl bottom wall 2311 toward the direction close to the first vibration system 22; the magnetic steel component 232 includes a lower clamping plate 2321 fixed to the side of the first basin frame 21 away from the uniform temperature plate 1, and a magnetic steel component 232 fixed to the lower clamping plate 2321 away from the first basin. The first main magnetic steel 2322 and the secondary magnetic steel 2323 are arranged on one side of the first frame 21, and the second main magnetic steel 2324 is stacked and fixed on the side of the bottom wall 2311 of the magnetic bowl away from the first frame 21; the secondary magnetic steel 2323 is arranged around the first main magnetic steel 2322, and the first main magnetic steel 2322 is fixed on the side of the bottom wall 2311 of the magnetic bowl close to the first frame 21; the inner circumference of the first main magnetic steel 2322 and the magnetic bowl side wall 2312 are spaced apart to form a first magnetic gap 234, and the first voice coil 222 is inserted and suspended in the first magnetic gap 234. The first main magnetic steel 2322 and the secondary magnetic steel 2323 are spaced apart to form an annular gap 6, and the second voice coil 252 is at least partially inserted in the gap 6.

[0044] In this embodiment, the heat dissipation module 100 further includes an upper clamping plate 233, which is stacked and fixed on the side of the secondary magnetic steel 2323 away from the lower clamping plate 2321. The first main magnetic steel 2322 and the secondary magnetic steel 2323 are spaced apart from each other to form an annular gap 6; the magnetic bowl bottom wall 2311 is further provided with an annular gap opening 7 that is directly connected to the gap 6, and the gap 6 and the gap opening 7 together form the second magnetic gap 235. The magnetic properties of the secondary magnetic steel 2323 are improved by the upper clamping plate 233.

[0045] The first basin frame 21 is fixed by fixing the side of the lower clamping plate 2321 close to the uniform temperature plate 1, and the first main magnetic steel 2322 and the auxiliary magnetic steel 2323 are respectively installed and fixed on the side of the lower clamping plate 2321 away from the uniform temperature plate 1, so that the second voice coil 252 is conveniently suspended in the second magnetic gap 235, and the second diaphragm 251 is driven to vibrate and produce sound when the magnetic circuit system 23 and the second voice coil 252 drive each other. The first magnetic gap 234 is formed by spacing the first main magnetic steel 2322 and the magnetic bowl side wall 2312 from each other, and the first voice coil 222 is suspended in the first magnetic gap 234. The first voice coil 222 is driven by the magnetic circuit system 23, so that the first voice coil 222 drives the first diaphragm 221 to vibrate and produce sound, thereby achieving the effect of double diaphragm sound, and further improving the acoustic performance of the sound-generating device 2. In addition, the second main magnetic steel 2324 is arranged on one side of the magnetic bowl bottom wall 2311, which can improve the magnetic field performance of the first main magnetic steel 2322 and further improve the magnetic properties of the magnetic circuit system 23.

[0046] In this embodiment, the temperature equalizing plate 1 is used in conjunction with a simple sound-generating device. Preferably, the temperature equalizing plate 1 can also be used in conjunction with a sound-generating device or a sound-generating module with a shell.

[0047] In this embodiment, the second main magnetic steel 2324 is penetrated along the vibration direction of the second vibration system 25 to form a through hole 4, and the through hole 4 is directly opposite to the space surrounded by the magnetic bowl side wall 2312, so as to facilitate the release of air during the overall vibration and improve the acoustic performance.

[0048] In this embodiment, the second diaphragm 251 includes a second annular fixing portion 2511 fixed to the second basin frame 24, a second folded ring portion 2512 formed by bending and extending the inner circumference of the second fixing portion 2511 in a direction away from the second basin frame 24, a second vibration portion 2513 formed by bending and extending the inner circumference of the second folded ring portion 2512 in a direction away from the second basin frame 24, a third folded ring portion 2514 formed by bending and extending the inner circumference of the second vibration portion 2513 in a direction away from the second basin frame 24, and a third vibration portion 2515 formed by bending and extending the inner circumference of the third folded ring portion 2514 in a direction away from the second basin frame 24; the second voice coil 252 is fixed to the side of the second vibration portion 2513 close to the first vibration system 22.

[0049] The second diaphragm 251 is provided with a sound outlet hole 3 penetrating therethrough, and the sound outlet hole 3 is correspondingly arranged and connected with the through hole 4, so as to facilitate the second vibration system 25 to vibrate and generate sound and transmit it to the external environment.

[0050] In this embodiment, the second vibration part 2513 includes a skeleton 25131 and a second spherical top 25132 which is fixed to the side of the skeleton 25131 away from the first vibration system 22; the skeleton 25131 includes a skeleton body 251311, a first connection part 251312 formed by bending and extending the opposite sides of the outer periphery of the skeleton body 251311 toward the direction close to the temperature equalizing plate 1, a second connection part 251313 formed by bending and extending the inner periphery of the skeleton body 251311 toward the direction close to the temperature equalizing plate 1, and a second connection part 251313 formed by bending and extending the inner periphery of the second connection part 251313 toward the direction close to the second main magnetic steel 2324. The mounting portion 251314 is formed by bending and extending; the second ball top 25132 is fixed to the side of the skeleton body 251311 away from the temperature plate 1, and the inner periphery of the second folding ring portion 2512 is fixed to the side of the outer periphery of the skeleton body 251311 away from the first vibration system 22; the third folding ring portion 2514 is fixed to the side of the mounting portion 251314 away from the first vibration system 22, and the third folding ring portion 2514 is attached to the side of the second connecting portion 251313 close to the second main magnetic steel 2324; the second voice coil 252 is fixed to the side of the mounting portion 251314 close to the temperature plate 1. The skeleton 25131 facilitates the installation and fixation of the second folding ring portion 2512 and the third folding ring portion 2514, and at the same time, facilitates the suspension and fixation of the second voice coil 252, so that the installation of the second voice coil 252 is convenient. By providing the second dome 25132 on the frame 25131 , the vibration performance of the second vibration part 2513 is further improved.

[0051] In this embodiment, the heat dissipation module 100 also includes an elastic support component 5 fixed to the second basin frame 24; the elastic support component 5 includes an auxiliary diaphragm 51 fixed to the side of the second basin frame 24 close to the temperature plate 1, an elastic part 52 fixed to the side of the second basin frame 24 close to the first vibration system 22, and a conductive member 53 formed by bending and extending the inner peripheral side of the elastic part 52 in a direction away from the second basin frame 24, the conductive member 53 is used to form an electrical connection with the first voice coil 222 and the second voice coil 252 respectively, and the elastic part 52 is fixed between the auxiliary diaphragm 51 and the second basin frame 24. The vibration performance of the sound-generating device 2 is further provided by the corresponding arrangement of the auxiliary diaphragm 51 and the second diaphragm 251. Optionally, the conductive member 53 and the elastic part 52 can be a PFC circuit board with good elastic performance, convenient wire installation, and space saving.

[0052] Compared with the related art, in the heat dissipation module of the present invention, by fitting and fixing the sound-generating device on the temperature-averaging board, the temperature-averaging board includes a temperature-averaging board body having an accommodating cavity inside, a capillary core accommodated in the accommodating cavity, and an opening portion opened by the temperature-averaging board body on a side close to the sound-generating device; the opening portion connects the accommodating cavity with the outside, the sound-generating device is supported on the temperature-averaging board body and partially fixed on the opening portion to seal the opening portion, and the accommodating cavity contains heat dissipation liquid; the magnetic circuit system drives the first vibration system and the second vibration system to vibrate; one end of the first basin frame is fixed to a side of the magnetic circuit system close to the temperature-averaging board, and the other end of the first basin frame is supported on the temperature-averaging board and arranged around the opening portion; the first vibration system includes a first diaphragm fixed to the first basin frame and a first voice coil that drives the first diaphragm to vibrate and produce sound, the first diaphragm is arranged opposite to the opening portion to seal the opening portion, and the first voice coil drives the first diaphragm to vibrate, which can actively increase the flow rate of the heat dissipation liquid, and further improve the heat dissipation performance of the temperature-averaging board to the sound-generating device; at the same time, the first diaphragm is arranged in the opening portion, which effectively reduces the overall installation space of the heat dissipation module.

[0053] The above description is only an implementation mode of the present invention. It should be pointed out that, for ordinary technicians in this field, improvements can be made without departing from the creative concept of the present invention, but these all belong to the protection scope of the present invention.

Claims

1. A heat dissipation module, characterized in that: The heat dissipation module includes a temperature averaging plate and a sound generating device fixedly attached to the temperature averaging plate; The temperature equalizer includes a temperature equalizer body with a receiving cavity inside, a capillary core received in the receiving cavity, and an opening portion opened on a side of the temperature equalizer body close to the sound-generating device; the opening portion connects the receiving cavity with the outside, the sound-generating device is supported by the temperature equalizer body and partially fixed to the opening portion to seal the opening portion, and the receiving cavity contains heat dissipation liquid; the sound-generating device includes a magnetic circuit system spaced apart from the temperature equalizer and a first vibration system and a second vibration system arranged on opposite sides of the magnetic circuit system, and the magnetic circuit system drives the first vibration system and the second vibration system to vibrate; The sound-generating device further includes a first basin frame, one end of which is fixed to a side of the magnetic circuit system close to the temperature averaging plate, and the other end of which is supported by the temperature averaging plate and arranged around the opening; The first vibration system includes a first diaphragm fixed to a side of the first basin frame close to the temperature equalizing plate and a first voice coil driving the first diaphragm to vibrate and produce sound; the first diaphragm is arranged opposite to the opening to seal the opening.

2. The heat dissipation module according to claim 1, characterized in that: The capillary core is arranged in a ring shape in the accommodating cavity, and the opening portion cuts the capillary core to form two fractures; the heat dissipation module also includes a first one-way valve and a second one-way valve, the first one-way valve and the second one-way valve are respectively sealed and arranged in the accommodating cavity, and the first one-way valve and the second one-way valve are spaced apart from each other on opposite sides of the first diaphragm, and respectively seal the two fractures of the capillary core.

3. The heat dissipation module according to claim 1, characterized in that: At least a portion of the first diaphragm is inserted into the opening.

4. The heat dissipation module according to claim 3, characterized in that: The first diaphragm includes a first annular fixing portion, a first folded ring portion formed by bending and extending the inner circumference of the first fixing portion in a direction away from the first basin and at least partially inserted in the opening portion, a first vibrating portion formed by bending and extending the inner circumference of the first folded ring portion in a direction away from the first basin, and a first ball top covered and fixed to the first vibrating portion; the first fixing portion is respectively fixed between the temperature equalizing plate body and the first basin on both sides along the vibration direction of the first vibration system, and the first voice coil is fixed to the side of the first vibrating portion away from the temperature equalizing plate body.

5. The heat dissipation module according to claim 1, characterized in that: The heat dissipation module also includes a heat insulation film, and the heat insulation film is attached and fixed to a surface of one side of the magnetic circuit system close to the temperature equalizing plate.

6. The heat dissipation module according to claim 1, characterized in that: The heat dissipation module also includes a second basin frame, which is fixed to the outer periphery of the magnetic circuit system; the second vibration system includes a second diaphragm whose outer periphery is fixed to the side of the second basin frame away from the temperature equalizing plate and a second voice coil that drives the second diaphragm to vibrate and produce sound, and the magnetic circuit system is provided with a first magnetic gap and a second magnetic gap surrounding the first magnetic gap, the first voice coil is inserted and suspended in the first magnetic gap, and the second voice coil is inserted and suspended in the second magnetic gap.

7. The heat dissipation module according to claim 6, characterized in that: The magnetic circuit system includes an annular magnetic bowl arranged on the side of the first basin away from the uniform temperature plate and a magnetic steel assembly fixed to the magnetic bowl; the magnetic bowl includes an annular magnetic bowl bottom wall and a magnetic bowl side wall formed by bending and extending the inner circumference of the magnetic bowl bottom wall toward the uniform temperature plate; the magnetic steel assembly includes a lower clamping plate fixed to the side of the first basin away from the uniform temperature plate, a first main magnetic steel and a secondary magnetic steel stacked and fixed to the side of the lower clamping plate away from the first basin, and a second main magnetic steel stacked and fixed to the side of the magnetic bowl bottom wall away from the first basin; the first main magnetic steel is fixed to the side of the magnetic bowl bottom wall close to the first basin; the first main magnetic steel and the magnetic bowl side wall are spaced apart from each other to form the first magnetic gap; the first main magnetic steel and the secondary magnetic steel are spaced apart from each other to form an annular gap, and the second voice coil is at least partially inserted in the gap.

8. The heat dissipation module according to claim 7, characterized in that: The heat dissipation module also includes an upper clamping plate, which is stacked and fixed on a side of the auxiliary magnetic steel away from the lower clamping plate. The bottom wall of the magnetic bowl and the upper clamping plate are spaced apart to form a gap opening, and the gap and the gap opening together form the second magnetic gap.

9. The heat dissipation module according to claim 7, characterized in that: The second main magnetic steel passes through along the vibration direction of the second vibration system to form a through hole, and the through hole is opposite to the space surrounded by the side wall of the magnetic bowl.

10. The heat dissipation module according to claim 9, characterized in that: The second diaphragm is provided with a sound outlet hole penetrating therethrough, and the sound outlet hole is arranged correspondingly to the through hole and is connected to each other.

11. The heat dissipation module according to claim 6, characterized in that: The heat dissipation module also includes an elastic support component fixed to the second basin; the elastic support component includes an auxiliary diaphragm fixed to the side of the second basin close to the temperature equalizing plate, an elastic part fixed to the side of the second basin close to the first vibration system, and a conductive member formed by bending and extending the inner circumference of the elastic part in a direction away from the second basin, the conductive member is used to form an electrical connection with the first voice coil and the second voice coil respectively, and the elastic part is fixed between the auxiliary diaphragm and the second basin.

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