CN105681985A - Loudspeaker diaphragm and method for manufacturing the same, and moving-coil loudspeaker - Google Patents
Loudspeaker diaphragm and method for manufacturing the same, and moving-coil loudspeaker Download PDFInfo
- Publication number
- CN105681985A CN105681985A CN201610124968.4A CN201610124968A CN105681985A CN 105681985 A CN105681985 A CN 105681985A CN 201610124968 A CN201610124968 A CN 201610124968A CN 105681985 A CN105681985 A CN 105681985A
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- Prior art keywords
- graphene film
- loudspeaker
- silica gel
- diaphragm
- graphene
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/024—Manufacturing aspects of the magnetic circuit of loudspeaker or microphone transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
- H04R2231/001—Moulding aspects of diaphragm or surround
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention discloses a loudspeaker diaphragm which includes a silica gel diaphragm body and a graphene film compounded on one side surface of the silica gel diaphragm body and used as a conducting layer. The invention also discloses a method for manufacturing the loudspeaker diaphragm, which includes the steps of: preparing the graphene film on the surface of a substrate material, and forming a compound film including the substrate material and the graphene film; performing molding treatment on the compound film, and making the shape of the compound film and the shape of the loudspeaker diaphragm to be formed consistent; stripping a molded graphene film from a molded compound film; and forming the silica gel diaphragm body compounded with the molded graphene film at one side of the molded graphene film. The invention also discloses a moving-coil loudspeaker having the loudspeaker diaphragm. The loudspeaker diaphragm includes the silica gel diaphragm body and the graphene film which are compounded together. The loudspeaker diaphragm and the moving-coil loudspeaker have the advantages that the electrical conduction is good, the mass is light, the thickness is thin, and the breakage is difficult.
Description
Technical field
The present invention relates to loudspeaker techniques, more particularly, to a kind of diaphragm of loudspeaker, the manufacture method of a kind of diaphragm of loudspeaker and a kind of coil-moving speaker.
Background technology
Compared to common power amplifier, intelligent power output amplification (SmartPA) adds the feedback of speaker output signal, and power is carried out Intelligent adjustment according to input audio signal and feedback signal by intelligent power output amplification. Along with the application on a speaker of intelligent power output amplification technology, it is necessary to add conduction design more and more in the vibrational system of speaker to realize the feedback to speaker output signal. The design of current conductive layer has following two form: 1) use all kinds of tinsel and flexible circuit board (FPC) as conductive layer, the good conductivity of this kind of conductive layer design, but the weight of conductive and thickness are big, and the impact of speaker product performance and volume is relatively larger; 2) using metal coating as conductive layer, this kind of conductive layer design has the advantage that electric conductivity is good, light weight, thickness are thin, but metal-plated rete bending resistance rolls over ability, easy fracture. Therefore, it is necessary to propose a kind of new conductive layer design.
Summary of the invention
It is an object of the invention to propose a kind of diaphragm of loudspeaker with conductive layer, and the design of this conductive layer at least can solve the problem that one of above-mentioned technical problem.
According to the first aspect of the invention, it is provided that a kind of diaphragm of loudspeaker, including silica gel vibrating diaphragm body and the graphene film being used as conductive layer being compound in described silica gel vibrating diaphragm body one side surface.
Preferably, the thickness of described graphene film is 2 μm.
Alternatively, described silica gel vibrating diaphragm body includes being centrally located the planar portions of position and being positioned at the ring portion at described planar portions edge, and described graphene film is only compound in the planar portions of described silica gel vibrating diaphragm body.
According to the second aspect of the invention, described coil-moving speaker includes magnetic circuit system and is positioned at the vibrational system above magnetic circuit system, described vibrational system includes voice coil loudspeaker voice coil and the foregoing diaphragm of loudspeaker, and the graphene film of the described diaphragm of loudspeaker is compound in the upper surface of described silica gel vibrating diaphragm body.
Preferably, described coil-moving speaker also includes the housing housing described magnetic circuit system and vibrational system, and is fixed on the Graphene pole plate of described case inside; Described Graphene pole plate is positioned at the top of described vibrational system and is parallel to the graphene film of the described diaphragm of loudspeaker, described in be fixed on the graphene film of the Graphene pole plate of case inside and the described diaphragm of loudspeaker and constitute Graphene electric capacity.
According to the third aspect of the invention we, it is proposed that the manufacture method of the above-mentioned diaphragm of loudspeaker, comprise the following steps: prepare graphene film at substrate surface, form the composite membrane including base material and graphene film; It is shaped described composite membrane processing so that the shape of described composite membrane is consistent with the shape of the diaphragm of loudspeaker to be formed; In type graphene film is separated from type composite membrane; The silica gel vibrating diaphragm body being combined with each other with described in type graphene film is formed in the side of in type graphene film.
Preferably, the described silica gel vibrating diaphragm body being combined with each other with described in type graphene film in the formation of the side of in type graphene film, comprise the following steps: described in type graphene film is put in silica gel forming frock, add liquid silica gel in the side of described in type graphene film by gluing or injection system; Described liquid silica gel is carried out sulfidization molding process and forms described silica gel vibrating diaphragm body.
Preferably, described base material is metal forming.
Preferably, described base material is Copper Foil.
Preferably, described before substrate surface prepares graphene film, also include the step that the surface of described base material is carried out reduces surface-active-treatment.
Graphene is current nature thin, the most tough known material, has high fracture strength, has again good elasticity simultaneously, and stretch range can reach the 20% of own dimensions. The diaphragm of loudspeaker of the present invention, including the silica gel vibrating diaphragm body being combined with each other and graphene film, compared to using tinsel and flexible circuit board as conductive layer, the light weight of graphene film, thickness are thin, have substantially no effect on vibrational system pliable, improve the performance of speaker product; Preferably or alternatively, the thickness of graphene film is thin, without influence on the oscillation space of speaker vibration system, impact without to the volume of speaker product; Preferably or alternatively, compared to the conductive layer using metal coating, the resistance to folding force of graphene film is good, not easy fracture.
The inventors found that, in the prior art, but without the side surface technical scheme as conductive layer that graphene film is compound in vibrating diaphragm body, therefore the present invention to realize technical assignment or that the those skilled in the art of technical problem is that to be solved never expect or it is not expected that, therefore the present invention is a kind of new technical scheme.
By referring to the accompanying drawing detailed description to the exemplary embodiment of the present invention, the further feature of the present invention and advantage thereof will be made apparent from.
Accompanying drawing explanation
Combined in the description and the accompanying drawing of the part constituting description illustrate embodiments of the invention, and be used for explaining principles of the invention together with its explanation.
Fig. 1 is the structural representation of the diaphragm of loudspeaker that the embodiment of the present invention provides.
Fig. 2-6 is the manufacture process schematic diagram of the diaphragm of loudspeaker that the embodiment of the present invention provides.
Detailed description of the invention
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should also be noted that unless specifically stated otherwise, the parts otherwise set forth in these embodiments and positioned opposite, the numerical expression of step and numerical value do not limit the scope of the invention.
Description only actually at least one exemplary embodiment is illustrative below, never as any restriction to the present invention and application or use.
The known technology of person of ordinary skill in the relevant, method and apparatus are likely to be not discussed in detail, but in the appropriate case, described technology, method and apparatus should be considered a part for description.
Shown here with in all examples discussed, any occurrence should be construed as merely exemplary, not as restriction. Therefore, other example of exemplary embodiment can have different values.
The embodiment of the diaphragm of loudspeaker of the present invention it is shown with reference to Fig. 1:
The diaphragm of loudspeaker includes silica gel vibrating diaphragm body 3 and the graphene film 2 of the side surface being compound in described silica gel vibrating diaphragm body 3, and this graphene film 2 is used as conductive layer.
Graphene film 2 can not be too thin, otherwise can affect its electric conductivity, simultaneously too thin also can increase preparation difficulty, but graphene film 2 can not be blocked up, the blocked up oscillation space that will take the diaphragm of loudspeaker, thus affecting performance and the volume of speaker, considers these factors, in one particular embodiment of the present invention, the thickness of graphene film 2 is preferably 2 μm.
As can be seen from Figure 1, silica gel vibrating diaphragm body 3 includes being centrally located the planar portions 101 of position, being positioned at the ring portion 102 at planar portions 101 edge, and it is positioned at the fixed part 103 for being adhesively fixed with loudspeaker housing of outermost, graphene film 2 is compound in the Zone Full of silica gel vibrating diaphragm body 3, and namely graphene film 2 is compound in the planar portions 101 of silica gel vibrating diaphragm body 3, ring portion 102 and fixed part 103 simultaneously. In another embodiment of the present invention, graphene film 2 can only be compound in the planar portions 101 of silica gel vibrating diaphragm body 3.
With reference to the manufacture process of Fig. 2-6 above-mentioned diaphragm of loudspeaker provided for the embodiment of the present invention, comprise the following steps:
A) with reference to shown in Fig. 2, it is provided that base material 1, the surface of base material 1 is processed to reduce the activity on the surface of base material 1. Base material 1 can be metal forming, it is preferred to Copper Foil.
B) with reference to, shown in Fig. 3, preparing graphene film 2 on the surface of base material 1, formed and include base material 1 and the composite membrane of graphene film 2. Can by carrying out chemical vapor deposition graphene on the surface of base material 1 to form graphene film 2.
C) with reference to, shown in Fig. 4, being shaped described composite membrane processing so that the shape of described composite membrane is consistent with the shape of the diaphragm of loudspeaker that ultimately to be formed.
D) with reference to shown in Fig. 5, from type composite membrane, in type graphene film 2 is separated. Owing to the surface of base material 1 processes through reducing activity, the combination of described base material 1 and graphene film 2 will not be tight especially, it is easy to both is cut separation.
E) with reference to, shown in Fig. 6, forming the silica gel vibrating diaphragm body 3 being combined with each other with described in type graphene film 2 in the side of in type graphene film 2. In this step, it is possible to first put in silica gel forming frock by described in type graphene film 2, add liquid silica gel in the side of described in type graphene film 2 by gluing or injection system; Described liquid silica gel is carried out sulfidization molding process and forms described silica gel vibrating diaphragm body 3.
Present invention also offers a kind of coil-moving speaker, described coil-moving speaker includes magnetic circuit system and is positioned at the vibrational system above magnetic circuit system, described vibrational system includes voice coil loudspeaker voice coil and the foregoing diaphragm of loudspeaker, wherein, the graphene film of the described diaphragm of loudspeaker is compound in the upper surface of described silica gel vibrating diaphragm body. described coil-moving speaker also includes the housing housing magnetic circuit system and vibrational system, and is fixed on the Graphene pole plate of case inside, this Graphene pole plate is positioned at the top of described vibrational system and is parallel to the graphene film of the described diaphragm of loudspeaker, the graphene film of the described Graphene pole plate being fixed on case inside and the described diaphragm of loudspeaker constitutes Graphene electric capacity, this Graphene electric capacity may be used for the vibration displacement of the detection diaphragm of loudspeaker, when the vibrational system of speaker is vibrated, the distance being fixed between Graphene pole plate and the graphene film of the diaphragm of loudspeaker of case inside changes and causes that the capacitance of this Graphene electric capacity changes, the curent change of the circuit that the direct change in value monitoring this Graphene electric capacity or indirect control and supervision are connected with this electric capacity can calculate the actual displacement of the diaphragm of loudspeaker. there is due to Graphene fabulous electric conductivity and the charge/discharge rates being exceedingly fast, use Graphene to constitute detection electric capacity and can monitor the vibration displacement of the diaphragm of loudspeaker in time.
It is fixed on the Graphene pole plate inside loudspeaker housing, it is possible to being arranged by evaporation or corresponding graphene layer is adhered in chemical vapour deposition (CVD) on counterpart substrate, this evaporation and chemical vapour deposition (CVD) are any means known, do not repeat them here. In order to avoid capacitance charge flow in the conducting medium of other materials, in one particular embodiment of the present invention, the substrate for graphene layer attachment adopts insulant.
Being fixed on the Graphene pole plate inside loudspeaker housing can be identical with the shape of the graphene film of the diaphragm of loudspeaker, thickness, area etc., can also differ, but in order to improve the structural symmetry of two pole plates of Graphene electric capacity, and then be easy to the capacitance change calculations according to Graphene electric capacity and go out the vibration displacement of the diaphragm of loudspeaker, in one particular embodiment of the present invention, the Graphene pole plate inside loudspeaker housing it is fixed on identical with the shape and size of the graphene film of the diaphragm of loudspeaker.
In order to the capacitance of Graphene electric capacity is changed in the circuit that related data is transferred to the vibration displacement calculating the diaphragm of loudspeaker according to capacitance variations, in one particular embodiment of the present invention, the graphene film being fixed on the Graphene pole plate inside loudspeaker housing and the diaphragm of loudspeaker connects respectively through connecting lead wire pad corresponding to coil-moving speaker.
The diaphragm of loudspeaker of the present invention, including the silica gel vibrating diaphragm body being combined with each other and graphene film, compared to using tinsel and flexible circuit board as conductive layer, the light weight of graphene film, thickness are thin, have substantially no effect on vibrational system pliable, improve the performance of speaker product; Preferably or alternatively, the thickness of graphene film is thin, without influence on the oscillation space of speaker vibration system, impact without to the volume of speaker product; Preferably or alternatively, compared to the conductive layer using metal coating, the resistance to folding force of graphene film is good, not easy fracture; Preferably or alternatively, there is due to Graphene fabulous electric conductivity and the charge/discharge rates being exceedingly fast, use Graphene to constitute detection electric capacity and can monitor the vibration displacement of the diaphragm of loudspeaker in time.
Although some specific embodiments of the present invention being described in detail already by example, but it should be appreciated by those skilled in the art, example above is merely to illustrate, rather than in order to limit the scope of the present invention. It should be appreciated by those skilled in the art, can without departing from the scope and spirit of the present invention, above example be modified. The scope of the present invention is defined by the claims.
Claims (10)
1. a diaphragm of loudspeaker, it is characterised in that include silica gel vibrating diaphragm body and be compound in the graphene film being used as conductive layer of described silica gel vibrating diaphragm body one side surface.
2. the diaphragm of loudspeaker according to claim 1, it is characterised in that the thickness of described graphene film is 2 μm.
3. the diaphragm of loudspeaker according to claim 1, it is characterized in that, described silica gel vibrating diaphragm body includes being centrally located the planar portions of position and being positioned at the ring portion at described planar portions edge, and described graphene film is only compound in the planar portions of described silica gel vibrating diaphragm body.
4. a coil-moving speaker, described coil-moving speaker includes magnetic circuit system and is positioned at the vibrational system above magnetic circuit system, it is characterized in that, described vibrational system includes voice coil loudspeaker voice coil and the diaphragm of loudspeaker according to any one of claim 1-3, and the graphene film of the described diaphragm of loudspeaker is compound in the upper surface of described silica gel vibrating diaphragm body.
5. coil-moving speaker according to claim 4, it is characterised in that described coil-moving speaker also includes the housing housing described magnetic circuit system and vibrational system, and is fixed on the Graphene pole plate of described case inside; Described Graphene pole plate is positioned at the top of described vibrational system and is parallel to the graphene film of the described diaphragm of loudspeaker, described in be fixed on the graphene film of the Graphene pole plate of case inside and the described diaphragm of loudspeaker and constitute Graphene electric capacity.
6. the manufacture method of the diaphragm of loudspeaker as described in any one of claim 1-3, it is characterised in that comprise the following steps:
Prepare graphene film at substrate surface, form the composite membrane including base material and graphene film;
It is shaped described composite membrane processing so that the shape of described composite membrane is consistent with the shape of the diaphragm of loudspeaker to be formed;
In type graphene film is separated from type composite membrane;
The silica gel vibrating diaphragm body being combined with each other with described in type graphene film is formed in the side of in type graphene film.
7. method according to claim 6, it is characterised in that the described silica gel vibrating diaphragm body being combined with each other with described in type graphene film in the formation of the side of in type graphene film, comprises the following steps:
Described in type graphene film is put in silica gel forming frock, adds liquid silica gel in the side of described in type graphene film by gluing or injection system;
Described liquid silica gel is carried out sulfidization molding process and forms described silica gel vibrating diaphragm body.
8. method according to claim 6, it is characterised in that described base material is metal forming.
9. method according to claim 6, it is characterised in that described base material is Copper Foil.
10. method according to claim 6, it is characterised in that described before substrate surface prepares graphene film, also includes the step that the surface of described base material carries out reduce surface-active-treatment.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610124968.4A CN105681985A (en) | 2016-03-04 | 2016-03-04 | Loudspeaker diaphragm and method for manufacturing the same, and moving-coil loudspeaker |
| PCT/CN2016/090204 WO2017148077A1 (en) | 2016-03-04 | 2016-07-15 | Loudspeaker diaphragm, method for manufacturing same, and moving-coil loudspeaker |
| US16/080,878 US11368791B2 (en) | 2016-03-04 | 2016-07-15 | Speaker vibration diaphragm and method for manufacturing the same, and moving-coil speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610124968.4A CN105681985A (en) | 2016-03-04 | 2016-03-04 | Loudspeaker diaphragm and method for manufacturing the same, and moving-coil loudspeaker |
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| Publication Number | Publication Date |
|---|---|
| CN105681985A true CN105681985A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610124968.4A Pending CN105681985A (en) | 2016-03-04 | 2016-03-04 | Loudspeaker diaphragm and method for manufacturing the same, and moving-coil loudspeaker |
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| CN (1) | CN105681985A (en) |
Cited By (5)
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| WO2017148077A1 (en) * | 2016-03-04 | 2017-09-08 | 歌尔股份有限公司 | Loudspeaker diaphragm, method for manufacturing same, and moving-coil loudspeaker |
| CN107493557A (en) * | 2017-08-15 | 2017-12-19 | 深圳清华大学研究院 | A kind of diaphragm of loudspeaker preparation method based on graphene paper pulp |
| WO2018094724A1 (en) * | 2016-11-28 | 2018-05-31 | 声电电子科技(惠州)有限公司 | Graphene speaker diaphragm |
| CN108810754A (en) * | 2017-05-03 | 2018-11-13 | 常州阿木奇声学科技有限公司 | A kind of vibrating diaphragm and preparation method thereof |
| CN114630245A (en) * | 2022-04-07 | 2022-06-14 | 浙江旗声电子科技股份有限公司 | Loudspeaker diaphragm |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017148077A1 (en) * | 2016-03-04 | 2017-09-08 | 歌尔股份有限公司 | Loudspeaker diaphragm, method for manufacturing same, and moving-coil loudspeaker |
| US11368791B2 (en) | 2016-03-04 | 2022-06-21 | Goertek Inc. | Speaker vibration diaphragm and method for manufacturing the same, and moving-coil speaker |
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| CN107493557A (en) * | 2017-08-15 | 2017-12-19 | 深圳清华大学研究院 | A kind of diaphragm of loudspeaker preparation method based on graphene paper pulp |
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Address after: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Applicant after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Applicant before: Goertek Inc. |
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Application publication date: 20160615 |