CN206506704U - A kind of Microspeaker - Google Patents
A kind of Microspeaker Download PDFInfo
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- CN206506704U CN206506704U CN201720226664.9U CN201720226664U CN206506704U CN 206506704 U CN206506704 U CN 206506704U CN 201720226664 U CN201720226664 U CN 201720226664U CN 206506704 U CN206506704 U CN 206506704U
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- voice coil
- heat
- conducting layer
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- shell
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Abstract
Include shell the utility model discloses a kind of Microspeaker, and it is contained in the vibrational system in shell, vibrational system includes voice coil loudspeaker voice coil, voice coil loudspeaker voice coil includes voice coil loudspeaker voice coil body and the voice coil leads being located on voice coil loudspeaker voice coil body, shell is provided with pad, pad is electrically connected with voice coil leads, and covered with pad heat-conducting layer on the pad and peripheral region after voice coil leads and pad solder, shell is the housing being made up of the plastics for being mixed with heat conduction particle.Worked after energization, the heat of voice coil loudspeaker voice coil is transmitted on pad heat-conducting layer via voice coil leads, pad heat-conducting layer is transmitted on housing again, because housing is made up of the plastics for being mixed with heat conduction particle, the heat on voice coil loudspeaker voice coil is set to be dispersed on larger area of dissipation, it is to avoid voice coil loudspeaker voice coil loose wire, the situation of diaphragm deformation occur.Therefore loudspeaker of the present utility model can meet the intensive work demand of long period, have the advantages that acoustical behavior is stable and reliability is high.
Description
Technical field
The utility model is related to electro-acoustic product technical field, more particularly to a kind of Microspeaker.
Background technology
The requirement of micro speaker system is got over the fast-developing also more and more higher of portable electric appts, product appearance
Come more frivolous, and power is increasing, voice coil loudspeaker voice coil produces amount of heat therewith, loudspeaker heat dispersion is proposed stricter
It is required that, the condition of reliability test is also more harsh.In the case of long-time intensive work, the high heat of voice coil loudspeaker voice coil output
In small space can not quick heat radiating, as accumulation of heat easily makes vibrating diaphragm temperature distortion, acoustical behavior is deteriorated, while sound
Glue between astragal easily melts in the case of a high temperature to be caused.
Heat dissipation problem is always to influence one of key factor of system temperature in speaker system, in high-power work for a long time
In the case of work, the heat dispersion of speaker system directly determines the unfailing performance of loudspeaker.
Microspeaker inner space is narrow and small, and air flow property is poor, and the heat conductivility of internal each modular construction is poor, voice coil loudspeaker voice coil production
Raw heat quickly can not be transmitted and radiated, and under the conditions of high power work, vibrating diaphragm is Nian Jie with voice coil loudspeaker voice coil, the height easily produced by voice coil loudspeaker voice coil
Warm deformation, causes acoustical behavior compromises.And due to heat dissipation problem, the frivolous property and portability of Microspeaker always by
To severely restricts.
For above-mentioned technical problem, use some structures to improve, still can not effectively solve speaker system and voice coil loudspeaker voice coil
Heat dissipation problem.Major part can only be by improving use requirement, and the mode such as reduction input power and reduction use time is raised to reduce
Sound device produces amount of heat, causes loudspeaker to receive larger limitation in use, it is impossible to meet higher use demand.
Utility model content
For above-mentioned deficiency, technical problem to be solved in the utility model is：A kind of Microspeaker is provided, this is raised one's voice
The heat that device can produce voice coil vibrations conducting well, so as to meet the work requirements of long period, makes acoustics
It is stable and reliable for performance.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of Microspeaker, including shell, and the vibrational system being contained in the shell, the vibrational system bag
Voice coil loudspeaker voice coil is included, the voice coil loudspeaker voice coil includes voice coil loudspeaker voice coil body and the voice coil leads being located on the voice coil loudspeaker voice coil body, and the shell is provided with weldering
Disk, the pad is electrically connected with the voice coil leads, the voice coil leads and the pad and surrounding after the pad solder
Covered with pad heat-conducting layer on region, the shell is the housing being made up of the plastics for being mixed with heat conduction particle.
Preferred embodiment is that voice coil loudspeaker voice coil heat-conducting layer is enclosed with the outside of the voice coil loudspeaker voice coil body, the outside parcel of the voice coil leads
Leaded heat-conducting layer, the pad heat-conducting layer is connected as one by the lead heat-conducting layer with the voice coil loudspeaker voice coil heat-conducting layer.
Preferred embodiment is that the inner surface of the shell is provided with the housing heat conduction connected as one with the pad heat-conducting layer
Layer.
Preferred embodiment is, the voice coil loudspeaker voice coil heat-conducting layer, the lead heat-conducting layer, the pad heat-conducting layer and/or the housing
Heat-conducting layer is heat-conducting insulation material.
Preferred embodiment is that the heat-conducting insulation material is heat-conducting silicone grease.
Preferred embodiment is to be mixed with heat conduction particle in the heat-conducting silicone grease.
Preferred embodiment is that the heat conduction particle is boron nitride particle, silicon-carbide particle or thermal conductive ceramic particle.
Preferred embodiment is that the housing heat-conducting layer is covered with the inner surface of the shell.
Preferred embodiment is that the voice coil loudspeaker voice coil is formed by voice coil line coiling, and the voice coil line includes conductor layer, the conductor layer
Outside is enclosed with the outside of insulating barrier, the insulating barrier and is enclosed with glue-line.
After adopting the above technical scheme, the beneficial effects of the utility model are：
Because Microspeaker of the present utility model includes having vibrational system in shell, shell, the vibrational system includes sound
Circle, voice coil loudspeaker voice coil includes voice coil loudspeaker voice coil body and the voice coil leads being located on voice coil loudspeaker voice coil body, and shell is provided with pad, pad and voice coil leads
Covered with pad heat-conducting layer on pad and peripheral region after electrical connection, voice coil leads and pad solder, shell is by being mixed with
The housing that the plastics of heat conduction particle are made.Worked after energization, the heat that voice coil loudspeaker voice coil is produced is transmitted on pad heat-conducting layer by voice coil loudspeaker voice coil,
It is transmitted to again on shell by pad heat-conducting layer again, because shell is made up of the plastics for being mixed with heat conduction particle, finally makes voice coil loudspeaker voice coil
On heat be transmitted on larger radiating surface and disperse, so as to avoid voice coil loudspeaker voice coil loose wire, the situation of diaphragm deformation occurs.Therefore originally
The loudspeaker of utility model can meet the intensive work demand of long period, with that acoustical behavior is stable and reliability is high is excellent
Point.
Due to being enclosed with voice coil loudspeaker voice coil heat-conducting layer on the outside of voice coil loudspeaker voice coil body, leaded heat-conducting layer, weldering are wrapped up in the outside of voice coil leads
Disk heat-conducting layer is connected as one by lead heat-conducting layer with voice coil loudspeaker voice coil heat-conducting layer, the heat inside voice coil loudspeaker voice coil is conducted, is carried
High radiating effect；And the mechanical strength of voice coil loudspeaker voice coil body is also improved, it is difficult loose wire.
Because the inner surface of shell is provided with the housing heat-conducting layer connected as one with pad heat-conducting layer；Make the heat on voice coil loudspeaker voice coil
Amount is directly transferred to housing heat-conducting layer by pad heat-conducting layer, and heat is conducted on larger radiating surface, makes radiating effect more preferable.
Due to being mixed with heat conduction particle in heat-conducting silicone grease；The thermal conductivity factor of silicone grease is improved, voice coil loudspeaker voice coil is produced heat
Effectively and rapidly conduct.
Because housing heat-conducting layer is covered with the inner surface of shell；Make area of dissipation sufficiently large.
In summary, Microspeaker of the present utility model has advantages below compared to prior art：
1st, the heat that quickly can be produced voice coil loudspeaker voice coil is transmitted simultaneously by the heat-conducting layer of voice coil loudspeaker voice coil, pad and shell inner surface integration
Large area radiates, so that the heat dissipation problem during efficiently solving voice coil vibrations, reduces the inside temperature of whole speaker system
Degree, meets long-time intensive work demand, efficiently solves in reliability test because high heat causes diaphragm deformation and sound
Loose wire problem is enclosed, speaker system reliability is improved.
2nd, speaker system has wider applicability, is overcoming harsh and strict use condition, is meeting making for high request
While using demand, it is ensured that the frivolous property and portability of loudspeaker.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model Microspeaker；
Fig. 2 is the upward view in A-A directions in Fig. 1；
Fig. 3 is the structural representation that the utility model uses voice coil loudspeaker voice coil；
Fig. 4 is the section enlarged diagram in B-B directions in Fig. 3；
Fig. 5 is the structural representation that the utility model uses voice coil line；
In figure：1-conductor layer, 2-insulating barrier, 3-glue-line, 4-voice coil line, 5-voice coil loudspeaker voice coil, 50-voice coil loudspeaker voice coil body, 51-
Voice coil leads, 6-lead heat-conducting layer, 7-voice coil loudspeaker voice coil heat-conducting layer, 8-heat conduction particle, 9-shell, 10-yoke, 11-magnet,
12-magnetic conductive board, 13-vibrating diaphragm, 14-pad, 15-housing heat-conducting layer.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of Microspeaker, including shell 9, and be contained in shell 9
Magnetic circuit system and vibrational system.Wherein magnetic circuit system includes being used for installing the yoke 10 of magnet 11, and positioned at magnet 11 it
On magnetic conductive board 12, wherein vibrational system includes voice coil loudspeaker voice coil 5, and the vibrating diaphragm 13 being located on shell 9.Wherein shell 9 is by being mixed with
The housing that the plastics of heat conduction particle are made, makes shell 9 have heat-sinking capability.Wherein voice coil loudspeaker voice coil 5 includes voice coil loudspeaker voice coil body 50 and is located at
Voice coil leads 51 on voice coil loudspeaker voice coil body 50.Shell 9 is provided with pad 14, and pad 14 is electrically connected with voice coil leads 51, voice coil leads
51 with pad 14 weld after pad 14 and peripheral region on covered with pad heat-conducting layer.
As shown in Figure 1, Figure 2 and Figure 3, the outside of the voice coil loudspeaker voice coil body 50 of the present embodiment is enclosed with voice coil loudspeaker voice coil heat-conducting layer 7, and voice coil loudspeaker voice coil draws
Leaded heat-conducting layer 6 is wrapped up in the outside of line 51, and pad heat-conducting layer is connected as one by lead heat-conducting layer 6 with voice coil loudspeaker voice coil heat-conducting layer 7,
The inner surface of shell 9 is provided with the housing heat-conducting layer 15 connected as one with pad heat-conducting layer.Lead heat-conducting layer 6 makes on voice coil loudspeaker voice coil 5
The heat of generation more efficient, quickly can be transmitted on housing heat-conducting layer 15, improve the effect of heat transfer.
Other voice coil loudspeaker voice coil heat-conducting layer 7 of the present utility model, lead heat-conducting layer 6, pad heat-conducting layer and/or housing heat-conducting layer 15 are
Heat-conducting insulation material, wherein heat-conducting insulation material select heat-conducting silicone grease.The mechanical strength and tensile strength of the heat-conducting silicone grease itself,
The bulk strength of voice coil loudspeaker voice coil 5 can be improved, the loose wire of voice coil loudspeaker voice coil 5 is further prevented.
Heat conduction particle 8 uniformly is mixed with order to further improve in heat-conducting effect, the heat-conducting silicone grease of the present embodiment, this is led
Hot particle 8 preferably uses boron nitride particle, silicon-carbide particle or thermal conductive ceramic particle etc..The heat conduction particle 8 makes leading for silica gel
Hot coefficient brings up to 20 and arrives 50W/ (m*k), voice coil loudspeaker voice coil heat-conducting layer 7 and the thermal conductivity factor of lead heat-conducting layer 6 is improved, allows voice coil loudspeaker voice coil 5
Internal heat can be by good radiating.And heat conduction particle 8 can improve the coefficient of heat transfer of shell 9, so that loudspeaker is whole
The excellent in heat dissipation effect of body.
As depicted in figs. 1 and 2, the shell 9 of the present embodiment, its material is the plastics of mixing heat conduction particle.Usual plastics
Thermal conductivity factor is very low, usually 1W/ (m*k), is mixed with thermal conductivity factor after heat conduction particle and brings up to 20 to 50W/ (m*k), is leading
It is obviously improved in terms of hot property, can more quickly transmits heat, helps voice coil loudspeaker voice coil 5 and speaker system radiating.
As depicted in figs. 1 and 2, housing heat-conducting layer 15 is covered with the inner surface of shell 9, makes dissipating for above-mentioned integrated heat-conducting system
Hot area is sufficiently large, and radiating effect is more preferable.
As shown in figure 5, the voice coil loudspeaker voice coil body 50 of the present embodiment is formed by the coiling of voice coil line 4, voice coil line 4 includes conductor layer 1, leads
The outside of body layer 1 is enclosed with insulating barrier 2, and the outside of insulating barrier 2 is enclosed with glue-line 3, and the wherein material of insulating barrier 2 is carbon fiber.Glue
Layer 3 is wrapped in the outermost layer of voice coil line 4, glue hot melt in the winding process of voice coil line 4 is mutually bonded into fixation, so that voice coil loudspeaker voice coil 5
Shaping, and glue-line 3 also can heat transfer, the heat on voice coil loudspeaker voice coil 5 can be conducted.
The conductor layer 1 of other voice coil line 4 has electric action, when can produce heat after its energization；Conductor layer 1 can select copper
One kind in line, extra-high tension copper cash, copper-clad aluminum conductor or other alloy wires, but do not limit above-mentioned several, it is generally used for enamel-covered wire
The material of core.The insulating barrier 2 of the outside parcel of conductor layer 1, when circle is in the cross section of conductor layer 1, it is wrapped completely
It is annulus when wrapping up in.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, Microspeaker of the present utility model, outer layer, the voice coil loudspeaker voice coil of voice coil loudspeaker voice coil 5 draw
The outer layer of line 51, the inner surface of shell 9 and it is embedded in around the pad 14 of inner surface and is provided with one layer of heat-conducting layer, the heat-conducting layer
It can be made up of the heat-conducting silicone grease for being mixed with heat conduction particle 8, shell 9 is the plastic material composition for being mixed with heat conduction particle.Voice coil loudspeaker voice coil
The conductor layer 1 of lead 51 welds together with pad 14, to realize that same external power source is turned on.After welding is finished, the table of pad 14
Face covers pad heat-conducting layer so that the voice coil loudspeaker voice coil heat-conducting layer 7 of voice coil loudspeaker voice coil 5, the heat-conducting layer of voice coil leads 51 are led by pad on pad 14
Thermosphere and housing heat-conducting layer 15 that shell inner surface is covered, the shell 9 for being mixed with heat conduction particle are connected to form integrated heat conduction
System.The integrated heat-conducting system, makes the work of voice coil loudspeaker voice coil 5 produce heat, lead heat-conducting layer 6, lead is transmitted to by voice coil loudspeaker voice coil heat-conducting layer 7
Heat-conducting layer 6 is transmitted to pad heat-conducting layer, and pad heat-conducting layer is transmitted to housing heat-conducting layer 15, the heat that voice coil loudspeaker voice coil 5 is transmitted is dissipated on shell 9
Go, it is therefore prevented that the loose wire of voice coil loudspeaker voice coil 5.Because the heat inside voice coil loudspeaker voice coil 5 can be dispersed by good, vibrating diaphragm 13 is set not occur because of heat mistake
High and situation about deforming.
Therefore Microspeaker of the present utility model, can meet the work requirements of long-time high intensity, can effectively reduce sound
Circle 5 and speaker system temperature, prevent vibrating diaphragm 13 from gluing the face temperature distortion of voice coil loudspeaker voice coil 5, while can solve in reliability test due to height
Heat cause the outer layer glue-line 3 of voice coil line 4 be heated bonding force decline caused by 5 loose wire of voice coil loudspeaker voice coil the problems such as.The loudspeaker, which has, to be dissipated
Good in thermal property, speaker system temperature stabilization, acoustical behavior are stable, reliability is high, have wider applicability, can overcome harshness
With strict use condition, the use demand of high request is met, and the characteristics of frivolous property and portability.
Preferred embodiment of the present utility model described above, it is all in this practicality not to limit the utility model
Any modification for being made within new spirit and principle, etc. the improvement of same Microspeaker structure etc., should be included in
Within protection domain of the present utility model.
Claims (9)
1. a kind of Microspeaker, including shell, and the vibrational system being contained in the shell, the vibrational system include
Voice coil loudspeaker voice coil, the voice coil loudspeaker voice coil includes voice coil loudspeaker voice coil body and the voice coil leads being located on the voice coil loudspeaker voice coil body, and the shell is provided with pad,
The pad is electrically connected with the voice coil leads, it is characterised in that the voice coil leads and the weldering after the pad solder
Covered with pad heat-conducting layer on disk and peripheral region, the shell is the housing being made up of the plastics for being mixed with heat conduction particle.
2. Microspeaker according to claim 1, it is characterised in that be enclosed with voice coil loudspeaker voice coil on the outside of the voice coil loudspeaker voice coil body and lead
Leaded heat-conducting layer is wrapped up in thermosphere, the outside of the voice coil leads, and the pad heat-conducting layer passes through the lead heat-conducting layer and institute
Voice coil loudspeaker voice coil heat-conducting layer is stated to connect as one.
3. Microspeaker according to claim 2, it is characterised in that the inner surface of the shell is provided with and the weldering
The housing heat-conducting layer that disk heat-conducting layer is connected as one.
4. Microspeaker according to claim 3, it is characterised in that the voice coil loudspeaker voice coil heat-conducting layer, the lead heat-conducting layer,
The pad heat-conducting layer and/or the housing heat-conducting layer are heat-conducting insulation material.
5. Microspeaker according to claim 4, it is characterised in that the heat-conducting insulation material is heat-conducting silicone grease.
6. Microspeaker according to claim 5, it is characterised in that be mixed with heat conduction particle in the heat-conducting silicone grease.
7. the Microspeaker according to claim 1 or 6, it is characterised in that the heat conduction particle is boron nitride particle, carbon
Silicon carbide particle or thermal conductive ceramic particle.
8. Microspeaker according to claim 7, it is characterised in that the housing heat-conducting layer is covered with the interior of the shell
Surface.
9. Microspeaker according to claim 1, it is characterised in that the voice coil loudspeaker voice coil is formed by voice coil line coiling, described
Voice coil line includes being enclosed with insulating barrier on the outside of conductor layer, the conductor layer, and glue-line is enclosed with the outside of the insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720226664.9U CN206506704U (en) | 2017-03-09 | 2017-03-09 | A kind of Microspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720226664.9U CN206506704U (en) | 2017-03-09 | 2017-03-09 | A kind of Microspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206506704U true CN206506704U (en) | 2017-09-19 |
Family
ID=59841712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720226664.9U Active CN206506704U (en) | 2017-03-09 | 2017-03-09 | A kind of Microspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206506704U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108174330A (en) * | 2017-12-11 | 2018-06-15 | 广东欧珀移动通信有限公司 | A kind of loudspeaker assembly and mobile terminal |
| CN110166900A (en) * | 2019-04-25 | 2019-08-23 | 歌尔股份有限公司 | Vibrating diaphragm, its production method and the sounding device including the vibrating diaphragm |
-
2017
- 2017-03-09 CN CN201720226664.9U patent/CN206506704U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108174330A (en) * | 2017-12-11 | 2018-06-15 | 广东欧珀移动通信有限公司 | A kind of loudspeaker assembly and mobile terminal |
| CN108174330B (en) * | 2017-12-11 | 2020-05-08 | Oppo广东移动通信有限公司 | Loudspeaker assembly and mobile terminal |
| CN110166900A (en) * | 2019-04-25 | 2019-08-23 | 歌尔股份有限公司 | Vibrating diaphragm, its production method and the sounding device including the vibrating diaphragm |
| CN110166900B (en) * | 2019-04-25 | 2021-03-30 | 歌尔股份有限公司 | Vibrating diaphragm, manufacturing method thereof and sound production device comprising vibrating diaphragm |
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