CN204707266U - A kind of MULTILAYER COMPOSITE Dome and apply the MULTILAYER COMPOSITE Dome loud speaker of this Dome - Google Patents
A kind of MULTILAYER COMPOSITE Dome and apply the MULTILAYER COMPOSITE Dome loud speaker of this Dome Download PDFInfo
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- CN204707266U CN204707266U CN201520185814.7U CN201520185814U CN204707266U CN 204707266 U CN204707266 U CN 204707266U CN 201520185814 U CN201520185814 U CN 201520185814U CN 204707266 U CN204707266 U CN 204707266U
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Abstract
The utility model provides a kind of MULTILAYER COMPOSITE Dome and applies the MULTILAYER COMPOSITE Dome loud speaker of this Dome, and MULTILAYER COMPOSITE Dome, is characterized in that, Dome is the composite construction of at least five layers; Dome is substrate layer and the spaced composite construction of foamed material layer, and outermost layer is substrate layer.Utilizing the utility model, by adopting at least five layers of compound Dome, improving the intensity of loud speaker Dome, to meet the work requirements under its top load; Further, Dome structure of the present utility model can also improve the heat transfer efficiency of Dome, improves the heat-sinking capability of speaker product, to adapt to high-temperature work environment.
Description
Technical field
The utility model relates to acoustic-electric switch technology field, more specifically, relates to a kind of MULTILAYER COMPOSITE Dome and applies the MULTILAYER COMPOSITE Dome loud speaker of this Dome.
Background technology
Along with the progress of society and the development of technology, in recent years, the slimming increasingly of the electronic products such as television set, the performance requirement of people to these electronic products is also more and more higher, thus requiring that the thickness of electronic component supporting is with it also in reduction, performance and consistency improve constantly.
Loud speaker is the important electronic component of one being widely used in above-mentioned electronic product, as in the electronic installation such as LCD TV, notebook computer, require to distribute its heat produced in the course of the work, to adapt to high-temperature work environment on the basis ensureing speaker performance as far as possible.
At present, in loudspeaker monomer, diaphragm structure is generally combined with Dome, Dome alleged herein typically refers to ball top, be incorporated into the centre position of diaphragm structure, its effect prevents vibrating diaphragm from producing diaphagras at high band, usually requires that the Dome in loudspeaker monomer has the little and feature that rigidity is large of quality.In existing loadspeaker structure, Dome is generally three-layer composite structure, and (three-decker of Dome is AL+PMI+AL, that is: aluminium+polymethacrylimide plastic foam+aluminium, polymethacrylimide plastic foam is a kind of expanded material), along with the increase of amplitude during speaker operation and temperature, the intensity of this Dome can not meet the needs of properties of product and reliability gradually.
Based on above factor, need to improve the Dome structure in conventional loudspeakers monomer.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of MULTILAYER COMPOSITE Dome and applies the MULTILAYER COMPOSITE Dome loud speaker of this Dome, to solve Dome undercapacity in loud speaker and the weak problem of heat-sinking capability.
The MULTILAYER COMPOSITE Dome that the utility model provides, Dome are the composite construction of at least five layers; Dome is substrate layer and the spaced composite construction of foamed material layer, and outermost layer is substrate layer.
In addition, preferred structure is, substrate layer is aluminium foil layer, copper foil layer, graphite flake layer, magnadure layer, carbon fiber layer or glass fabric layer.
In addition, preferred structure is, foamed material layer is polymethacrylimide plastic foam; Doped with the subparticle of graphite or copper or magnadure in polymethacrylimide plastic foam.
In addition, preferred structure is, Dome is the odd-level composite construction of at least five layers.
In addition, preferred structure is, Dome is five layers of composite construction, is followed successively by substrate layer, foamed material layer, substrate layer, foamed material layer and substrate layer from top to bottom.
In addition, preferred structure is, substrate layer and foamed material layer bond fixing by heat-curable glue or double faced adhesive tape.
In addition, preferred structure is, the thickness of substrate layer is 9-15 μm; The thickness of foamed material layer is 0.05-0.2 ㎜.
A kind of MULTILAYER COMPOSITE Dome loud speaker that the utility model provides, comprises vibrating diaphragm, shell, frame, voice coil loudspeaker voice coil, magnet and washer; Vibrating diaphragm comprises the MULTILAYER COMPOSITE Dome being positioned at centre and the vibrating diaphragm body being positioned at marginal position, wherein, and the above-mentioned MULTILAYER COMPOSITE Dome of MULTILAYER COMPOSITE Dome.
From technical scheme above, MULTILAYER COMPOSITE Dome of the present utility model and apply the MULTILAYER COMPOSITE Dome loud speaker of this Dome, by adopting at least five layers of compound Dome, improves the intensity of the Dome in loud speaker, to meet the work requirements under its top load; Further, Dome structure of the present utility model can also improve the heat transfer efficiency of Dome, improves the heat-sinking capability of speaker product, to adapt to high-temperature work environment.
Accompanying drawing explanation
By reference to the content below in conjunction with the description of the drawings and claims, and understand more comprehensively along with to of the present utility model, other object of the present utility model and result will be understood and easy to understand more.In the accompanying drawings:
Fig. 1 is three layers of compound Dome structural representation;
Fig. 2 is three layers of compound Dome structural profile schematic diagram of Fig. 1;
Fig. 3 is five layers of compound Dome structural representation according to the utility model embodiment;
Fig. 4 is five layers of compound Dome cross-sectional view according to the utility model embodiment;
Fig. 5 is the MULTILAYER COMPOSITE Dome cross-sectional view of the utility model embodiment;
Fig. 6 is the MULTILAYER COMPOSITE Dome loadspeaker structure schematic diagram according to the utility model embodiment;
Fig. 7 is the MULTILAYER COMPOSITE Dome loud speaker decomposition texture schematic diagram according to the utility model embodiment.
Reference numeral wherein comprises: 1, Dome, and 2, vibrating diaphragm body, 3, vibrating diaphragm, 4, shell, 5, foamed material layer, 6, substrate layer, 7, voice coil loudspeaker voice coil, 8, center washer, 9, limit washer, 10, centring magnet, 11, limit magnet, 12, frame.
Label identical in all of the figs indicates similar or corresponding feature or function.
Embodiment
At present, the Dome that Microspeaker adopts is generally 3 layers or single layer structure, Fig. 1 and Fig. 2 respectively illustrates three layers of compound Dome structure and its cross-section structure, as depicted in figs. 1 and 2, Dome in loudspeaker monomer is three-layer composite structure, and this three-decker is: substrate layer+foamed material layer+substrate layer; Wherein, it should be noted that, base material can be aluminium foil, Copper Foil, graphite flake or magnesium-aluminium alloy material, also can be carbon fiber, glass cloth etc.; Expanded material is generally PMI, and PMI is polymethacrylimide plastic foam.When speaker operation, its amplitude and temperature all can increase, and cause the intensity of three layers of compound Dome can not meet the needs of properties of product and reliability.Therefore, the utility model proposes a kind of MULTILAYER COMPOSITE Dome loud speaker (at least five layers of compound Dome loud speaker), by this five layers of compound Dome loud speaker, solve the above-mentioned Dome undercapacity mentioned and the weak problem of heat dispersion.
Below with reference to accompanying drawing, specific embodiment of the utility model is described in detail.
In order to the detailed construction of MULTILAYER COMPOSITE Dome being described and applying the structure of MULTILAYER COMPOSITE Dome loud speaker of this MULTILAYER COMPOSITE Dome, Fig. 3 and Fig. 4 respectively illustrates five layers of compound Dome structure according to the utility model embodiment and its cross-section structure; Fig. 5 shows the MULTILAYER COMPOSITE Dome cross-section structure according to the utility model embodiment; Fig. 6 shows the structure of the MULTILAYER COMPOSITE Dome loud speaker according to the utility model embodiment; Fig. 7 shows the MULTILAYER COMPOSITE Dome loud speaker decomposition texture according to the utility model embodiment.
As shown in Fig. 3, Fig. 4 and Fig. 5, the MULTILAYER COMPOSITE Dome that the utility model provides, MULTILAYER COMPOSITE Dome are the composite construction of at least five layers; MULTILAYER COMPOSITE Dome is substrate layer and the spaced composite construction of foamed material layer, and outermost layer is substrate layer.Wherein, substrate layer is aluminium foil layer or copper foil layer or graphite flake layer or magnadure layer, can also be carbon fiber layer or glass fabric layer; Foamed material layer is polymethacrylimide plastic foam, but in order to improve the capacity of heat transmission further, the stronger subparticle of thermal conductivity can be added in Polymethacrylimide, the subparticle of such as graphite or copper or magnadure, but when implementing, be not limited to above-mentioned three kinds of materials, the subparticle of the stronger material of other thermal conductivity can also be added.
In general, the thickness of substrate layer is 9-15 μm; The thickness of foamed material layer is 0.05-0.2 ㎜.Substrate layer and foamed material layer bond fixing by heat-curable glue or double faced adhesive tape.Heat-curable glue is fixing specifically can adopt following two kinds of modes to implement: one is utilize easy volatile solvent to dissolve in thermosetting glue (epoxy resin) in advance, then spray or be immersed in advance on base material, and it is dry, when needs are by itself and foamed material layer compound tense, by be heating and curing or the mode such as photocuring is bondd fixing; Two is adopt epoxy resin rubber cushion, and compound tense is placed between substrate layer and foamed material layer, is heating and curing, and the bonding of both realizations is fixed.It should be noted that, if fixing by heat-curable glue bonding between substrate layer and foamed material layer, then compare between substrate layer with foamed material layer firmly, be not easy to come off, but operating procedure is relatively complicated and cost is higher; If fixed by double faced adhesive tape bonding between substrate layer and foamed material layer, cohesive force is strong, and between substrate layer and foamed material layer, firmness is effective not as what adopt heat-curable glue bonding to fix, but cost is lower; It is fixing that existing Dome adopts heat-curable glue to bond mostly, although cost is high, fixing relatively more firm each other, is not easy to come off.
In the specific embodiment shown in Fig. 3, Fig. 4, MULTILAYER COMPOSITE Dome is the composite construction of five layers, is followed successively by substrate layer, foamed material layer, substrate layer, foamed material layer and substrate layer from top to bottom; That is: the composite construction of five layers of Dome is: substrate layer 6+ foamed material layer 5+ substrate layer 6+ foamed material layer 5+ substrate layer 6.In the embodiment shown in fig. 4, in five layers of compound Dome, separately, and expanded material 5 is arranged between base material 6 for substrate layer 6 and foamed material layer 5, and outermost layer is substrate layer 6.
Wherein, base material can be aluminium foil, Copper Foil, graphite flake, magnadure or carbon fiber, glass cloth material; Expanded material can be PMI (polymethacrylimide plastic foam), for improving the capacity of heat transmission, can add the subparticle of the stronger graphite of heat conductivility or copper or magnadure in PMI.That is, the composite construction of five layers is: " aluminium foil layer+foamed material layer+aluminium foil layer+foamed material layer+aluminium foil layer " or " copper foil layer+foamed material layer+copper foil layer+foamed material layer+copper foil layer " or " graphite flake layer+foamed material layer+graphite flake layer+foamed material layer+graphite flake layer " or " magnadure+foamed material layer+magnadure+foamed material layer+magnadure " or " carbon fiber layer+foamed material layer+carbon fiber layer+foamed material layer+carbon fiber layer " or " glass fabric layer+foamed material layer+glass fabric layer+foamed material layer+glass fabric layer ", and above-mentioned expanded material Rotating fields is the polymethacrylimide plastic foam of the subparticle doped with graphite or copper or magnadure.
In the specific embodiment shown in Fig. 5, Dome of the present utility model comprises the multi-layer compound structure of at least five layers; Multi-layer compound structure is: substrate layer 6+ foamed material layer 5+ substrate layer 6+ foamed material layer 5+ ... + substrate layer 6.In the embodiment shown in fig. 5, MULTILAYER COMPOSITE Dome comprises base material 6 and expanded material 5, and wherein, separately, and expanded material 5 is arranged between base material 6 for base material 6 and expanded material 5, and outermost layer is substrate layer 6.
Wherein, the base material in MULTILAYER COMPOSITE Dome adopts material identical with the material that the base material in five layers of compound Dome uses, that is: base material can be aluminium foil, Copper Foil, graphite flake, magnadure, carbon fiber, glass cloth etc.; Expanded material can be PMI (polymethacrylimide plastic foam).That is, multi-layer compound structure is: " aluminium foil layer+foamed material layer+aluminium foil layer+foamed material layer+...+aluminium foil layer " or " copper foil layer+foamed material layer+copper foil layer+foamed material layer+...+copper foil layer " or " graphite flake layer+foamed material layer+graphite flake layer+foamed material layer+...+graphite flake layer " or " carbon fiber layer+foamed material layer+carbon fiber layer+foamed material layer+...+carbon fiber layer " or " magnadure layer+foamed material layer+magnadure+foamed material layer+...+magnadure " or " glass fabric layer+foamed material layer+glass fabric layer+foamed material layer+... + glass fabric layer ", and above-mentioned expanded material Rotating fields is the polymethacrylimide plastic foam of the subparticle doped with graphite or copper or magnadure.
As can be seen from the embodiment shown in Fig. 3, Fig. 4 and Fig. 5, MULTILAYER COMPOSITE Dome is the odd-level composite construction of at least five layers, base material 6 in composite construction and expanded material 5 interval are arranged, and expanded material 5 is arranged between base material 6, and outermost layer is substrate layer 6.
Corresponding with the MULTILAYER COMPOSITE Dome that above-mentioned Fig. 3, Fig. 4 and Fig. 5 provide, in the embodiment shown in Fig. 6 and Fig. 7, the utility model provides a kind of MULTILAYER COMPOSITE Dome loud speaker, and MULTILAYER COMPOSITE Dome loud speaker comprises above-mentioned MULTILAYER COMPOSITE Dome.
This MULTILAYER COMPOSITE Dome loud speaker comprises vibrating diaphragm 3, shell 4, frame 12, voice coil loudspeaker voice coil 7, magnet and washer.Wherein, the vibrating diaphragm body 2, Dome1 that vibrating diaphragm 3 comprises the MULTILAYER COMPOSITE Dome1 that is positioned at centre and is positioned at marginal position is the composite construction of at least five layers; Composite construction is substrate layer and the spaced composite construction of foamed material layer, and outermost layer is substrate layer, and vibrating diaphragm body 2 is fixedly connected with the peripheral edge of shell 4.
Wherein, magnet comprises centring magnet 10 and is arranged at the limit magnet 11 of centring magnet 10 periphery, and washer comprises center washer 8 and is arranged at the limit washer 9 of washer periphery, center; Further, form magnetic gap between centring magnet 10, center washer 8 and limit magnet 11, limit washer 9, voice coil loudspeaker voice coil 7 is contained in magnetic gap.
It should be noted that, center washer 8, centring magnet 10 and limit washer 9, limit magnet 11 combine with frame 12 from top to bottom respectively, and, frame 12 is fixedly connected with by fixed leg with shell 4, and frame 12 wraps together with center washer 8, centring magnet 10, limit washer 9, limit magnet 11 by shell 4.
In the utility model, usually according to actual needs, the number of plies of the MULTILAYER COMPOSITE Dome of loud speaker is determined, the work requirements under making the intensity of Dome meet its top load.It should be noted that, due in the structure of MULTILAYER COMPOSITE Dome, the outermost layer of MULTILAYER COMPOSITE Dome is substrate layer, in the structure of therefore MULTILAYER COMPOSITE Dome the compound number of plies be more than or equal to five the odd number number of plies.
That is, the number of plies of the Dome of loud speaker can five layers of composite construction, and also can be seven layers of composite construction, wherein, Dome seven layers of composite construction be: substrate layer+foamed material layer+substrate layer+foamed material layer+substrate layer+foamed material layer+substrate layer.Because base material can be aluminium foil, Copper Foil, graphite flake, magnadure, carbon fiber, glass cloth etc., therefore the composite construction of seven layers is expressed as: " aluminium foil layer+foamed material layer+aluminium foil layer+foamed material layer+aluminium foil layer+foamed material layer+aluminium foil layer " or " copper foil layer+foamed material layer+copper foil layer+foamed material layer+copper foil layer+foamed material layer+copper foil layer " or " graphite flake layer+foamed material layer+graphite flake layer+foamed material layer+graphite flake layer+foamed material layer+graphite flake layer " or " carbon fiber layer+foamed material layer+carbon fiber layer+foamed material layer+carbon fiber layer+foamed material layer+carbon fiber layer " or " magnadure layer+foamed material layer+magnadure layer+foamed material layer+magnadure layer+foamed material layer+magnadure layer " or " glass fabric layer+foamed material layer+glass fabric layer+foamed material layer+glass fabric layer+foamed material layer+glass fabric layer ", same, above-mentioned expanded material Rotating fields is the polymethacrylimide plastic foam of the subparticle doped with graphite or copper or magnadure.
It should be noted that, in the utility model, loud speaker adopts the Dome of MULTILAYER COMPOSITE, that is: the Dome of compound of more than five layers and five layers, can effectively improve Dome intensity on the one hand, meet the work requirements under loud speaker top load, that is, Dome of the present utility model can meet at loud speaker that in use amplitude is excessive, still can normally work, and traditional Dome is individual layer or three layers, when loud speaker at high loads, the intensity of the Dome of individual layer or three layers may not meet normal work, on the other hand, in MULTILAYER COMPOSITE Dome of the present utility model, base material can be aluminium foil, Copper Foil, graphite flake, magnadure, carbon fiber, glass cloth material, due to aluminium foil, Copper Foil, graphite flake, magnadure, carbon fiber, glass cloth has good thermal diffusivity, in addition as the subparticle adding graphite or copper or magnadure in the Polymethacrylimide of foamed material layer, its capacity of heat transmission is further enhanced, therefore MULTILAYER COMPOSITE Dome of the present utility model can improve the heat transfer efficiency of Dome, improve the heat-sinking capability of loud speaker, use the operational environment of high temperature.
Due to, loud speaker works long hours, and the amplitude of vibrating diaphragm can be caused excessive, also makes its temperature increase simultaneously.Therefore, in the utility model, the description of the embodiment shown in complex chart 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, adopt MULTILAYER COMPOSITE Dome loud speaker (at least five layers of compound Dome loud speaker), solve the undercapacity of the Dome in prior art in Microspeaker and the weak problem of heat dispersion.
Can be found out by above-mentioned execution mode, the MULTILAYER COMPOSITE Dome that the utility model provides and apply the MULTILAYER COMPOSITE Dome loud speaker of this Dome, by adopting at least five layers of compound Dome, improve the intensity of the Dome in loud speaker, to meet the work requirements under its top load; Further, Dome of the present utility model can also improve the heat transfer efficiency of Dome, improves the heat-sinking capability of speaker product, to adapt to its high-temperature work environment.
Describe in an illustrative manner according to the MULTILAYER COMPOSITE Dome that the utility model proposes and the MULTILAYER COMPOSITE Dome loud speaker applying this Dome above with reference to accompanying drawing.But, it will be appreciated by those skilled in the art that the MULTILAYER COMPOSITE Dome that above-mentioned the utility model is proposed and the MULTILAYER COMPOSITE Dome loud speaker applying this Dome, various improvement can also be made on the basis not departing from the utility model content.Therefore, protection range of the present utility model should be determined by the content of appending claims.
Claims (7)
1. a MULTILAYER COMPOSITE Dome, is characterized in that, described Dome is the composite construction of at least five layers; Described Dome is substrate layer and the spaced composite construction of foamed material layer, and outermost layer is substrate layer, wherein,
Described foamed material layer is polymethacrylimide plastic foam; Doped with the subparticle of graphite or copper or magnadure in described polymethacrylimide plastic foam.
2. MULTILAYER COMPOSITE Dome as claimed in claim 1, is characterized in that,
Described substrate layer is aluminium foil layer, copper foil layer, graphite flake layer, magnadure layer, carbon fiber layer or glass fabric layer.
3. MULTILAYER COMPOSITE Dome according to claim 1, is characterized in that,
Described Dome is the odd-level composite construction of at least five layers.
4. MULTILAYER COMPOSITE Dome according to claim 3, is characterized in that,
Described Dome is five layers of composite construction, is followed successively by substrate layer, foamed material layer, substrate layer, foamed material layer and substrate layer from top to bottom.
5. MULTILAYER COMPOSITE Dome according to claim 1, is characterized in that,
Described substrate layer and described foamed material layer bond fixing by heat-curable glue or double faced adhesive tape.
6. MULTILAYER COMPOSITE Dome according to claim 1, is characterized in that,
The thickness of described substrate layer is 9-15 μm; The thickness of described foamed material layer is 0.05-0.2 ㎜.
7. a MULTILAYER COMPOSITE Dome loud speaker, comprises vibrating diaphragm, shell, frame, voice coil loudspeaker voice coil, magnet and washer; Described vibrating diaphragm comprises the MULTILAYER COMPOSITE Dome being positioned at centre and the vibrating diaphragm body being positioned at marginal position, it is characterized in that, the MULTILAYER COMPOSITE Dome of described MULTILAYER COMPOSITE Dome according to any one of claim 1 ~ 6.
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| CN201520185814.7U CN204707266U (en) | 2015-03-30 | 2015-03-30 | A kind of MULTILAYER COMPOSITE Dome and apply the MULTILAYER COMPOSITE Dome loud speaker of this Dome |
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| CN201520185814.7U CN204707266U (en) | 2015-03-30 | 2015-03-30 | A kind of MULTILAYER COMPOSITE Dome and apply the MULTILAYER COMPOSITE Dome loud speaker of this Dome |
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| CN106792376A (en) * | 2017-01-20 | 2017-05-31 | 瑞声光电科技(常州)有限公司 | Carbon fiber top dome, the preparation method of carbon fiber top dome and loudspeaker |
| CN109862482A (en) * | 2018-12-29 | 2019-06-07 | 瑞声声学科技(深圳)有限公司 | A kind of top dome material, vibrating diaphragm and loudspeaker |
| CN111065028A (en) * | 2019-12-27 | 2020-04-24 | 歌尔股份有限公司 | Vibrating diaphragm ball top, vibrating diaphragm and loudspeaker |
| CN111954125A (en) * | 2020-06-29 | 2020-11-17 | 瑞声新能源发展(常州)有限公司科教城分公司 | Dome and speaker |
| US11039252B2 (en) | 2016-05-03 | 2021-06-15 | 4A Manufacturing Gmbh | Membrane plate structure for generating sound waves |
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- 2015-03-30 CN CN201520185814.7U patent/CN204707266U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11039252B2 (en) | 2016-05-03 | 2021-06-15 | 4A Manufacturing Gmbh | Membrane plate structure for generating sound waves |
| CN106792376A (en) * | 2017-01-20 | 2017-05-31 | 瑞声光电科技(常州)有限公司 | Carbon fiber top dome, the preparation method of carbon fiber top dome and loudspeaker |
| CN109862482A (en) * | 2018-12-29 | 2019-06-07 | 瑞声声学科技(深圳)有限公司 | A kind of top dome material, vibrating diaphragm and loudspeaker |
| CN109862482B (en) * | 2018-12-29 | 2021-10-01 | 瑞声声学科技(深圳)有限公司 | Ball top material, vibrating diaphragm and loudspeaker |
| CN111065028A (en) * | 2019-12-27 | 2020-04-24 | 歌尔股份有限公司 | Vibrating diaphragm ball top, vibrating diaphragm and loudspeaker |
| CN111954125A (en) * | 2020-06-29 | 2020-11-17 | 瑞声新能源发展(常州)有限公司科教城分公司 | Dome and speaker |
| WO2022000611A1 (en) * | 2020-06-29 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Dome and loudspeaker |
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Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |