CN108513244A - Carbon nanotubes composite membrane vibration and its manufacturing method for loud speaker - Google Patents
Carbon nanotubes composite membrane vibration and its manufacturing method for loud speaker Download PDFInfo
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- CN108513244A CN108513244A CN201710107939.1A CN201710107939A CN108513244A CN 108513244 A CN108513244 A CN 108513244A CN 201710107939 A CN201710107939 A CN 201710107939A CN 108513244 A CN108513244 A CN 108513244A
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- 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
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- 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
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Abstract
A kind of carbon nanotubes composite membrane vibration and its manufacturing method for loud speaker, the carbon nanotubes composite membrane vibration include：One basal layer；One nano-sized carbon tube layer, it is coated on the basal layer upper surface, the nano-sized carbon tube layer includes colloid and nanometer carbon pipe composite material, i.e., the nano-sized carbon tube layer be by the colloid and the nanometer carbon pipe composite material mixed solution it is heated make its moisture evaporation after be formed by Stable Carbon pipe composite wood colloidal dispersion and formed after spraying；Wherein, carbon nanotubes surface generates the modification of part functionalizing group, and produces novel carbon nanotubes composite wood by special modification, and effective improve high frequency and low frequency is in audio fruit；Wherein, the structure of meeting part slight damage carbon nanotubes during being functionalized modification, carbon nanotubes after modification is combined by Electrostatic Absorption mode, covalent synthesis mode and the material with high acoustics value, and improves the audio presentation of high frequency and low frequency.
Description
Technical field
The present invention relates to the vibrating membrane for loud speaker, especially a kind of carbon nanotubes composite membrane vibrations for loud speaker
And its manufacturing method.
Background technology
With the progress of human lives' science and technology, various consumer amusing products come into being, and signify the mankind for body and mind
The attention of impression, 3C Product provide the mankind more easily information source, communication media, entertainment options etc., in these projects, sound
Sound plays extremely important role.It is the key intermediary for promoting sound quality, ear clearly to intend genuine sound producer and method
The devices such as machine, loudspeaker are developed and are improved successively.However existing technology still has improved space on the presentation mode of sound,
And the mankind become more harsh for the demand of sound quality also with scientific and technological progress.Vibrating membrane is studied and its developing material also becomes
It is all the more very powerful and exceedingly arrogant, good audio devices are developed on 3C Product and also become a hot topic and the high knowledge of difficulty.
Vibrating membrane is key factor indispensable in exquisite audio devices, and an outstanding vibrating membrane must be able to provide wide
Lower basin division (i.e. the distortion factor, THD) is generated under general response frequency range (SPL), high vibration, in finite energy and sky
Between the necessary molecular vibration of middle generation transmit, reliable and stable degree and durability, good composite wood can be prepared by reaching these targets and need to having
The Theoretical Design of the ability of material, solid acoustics and aeromechanics basis, additionally needing to have preeminent technological ability can reach.
The mode that electronic signal switchs to voice signal in the prior art is that electric current is passed through coil, have outside coil one it is U-shaped forever
Long magnet is equipped with a strip magnet (dynamic iron), when different frequency or intensity as a stabilizing magnetic field source in coil (voice coil)
Current signal flow into coil (voice coil) when, voice coil electric current under external magnetic fields, will in coil magnet generate a side
Tropicrole power, this active force can be with the frequencies of electric current, input direction, size, continuously or discontinuously etc. reciprocal above and below generations
Vibration.Sound film is placed in a distance above dynamic iron, and when dynamic iron pushes air molecule and is transmitted to sound film, which receives gas
The kinetic energy of molecule and generate corresponding vibration, the air point of magnet upper end and external subwoofer is further transmitted and is compressed in this vibration
Son, the medium wave for generating different density degree changes, and then makes a sound.
When electrical signal frequency is high, the transmission distance of energy is shorter, but intensity is stronger, and the vibration of air will focus on
The middle position of sound film, and there is higher intensity.Relatively, when electrical signal frequency is low, the transmission distance of energy compared with
It is long, but intensity is weaker, the vibration of air will focus on the peripheral position of sound film, and have lower intensity.In order to have
The sound of high frequency range and good sound quality is presented in effect, and harder and relatively thin group is often required that for the middle section of sound film
At because harder thin material provides preferable high-frequency sound compared with the movement that can react high-frequency signal.Opposite sound film surrounding is then
Need that relativity is thicker and the softer flexible material of quality, help to generate with low frequency sound wave resonate and transmit it is simple and honest low
Frequency response is answered.
But general vibrating membrane is made of the material using homogeneous, however the material suitable for high frequency message is presented loses
Low frequency message can effectively be showed by obtaining, conversely, the material suitable for low frequency message is then not necessarily suitable for high frequency message.So improveing
When vibrating membrane, it is often necessary to be accepted or rejected or be strided forward toward composite Materials Design.The vibrating membrane worked it out often also is only capable of effectively annotating
Release a kind of audio frequency performance in high frequency or low frequency.
Novel nanosecond science and technology provide a new way for the innovation of each industry material, are manipulated with fine and smooth microcosmic technique former
The microscopic species such as son, molecule, supermolecule form novel nanometer micrometer structure, generate the characteristic of unique physics, chemistry and biology,
Its phenomenon generates mainly caused by Nano quantum dimensional effect and skin effect so that the composed structure of substance, rigidity,
Electromagnetically, thermal resistance, reactance resistance, stress structure etc. all change, and produce peculiar property, cause new application opportunity.
Carbon nanotubes be called be the new century dreamlike material, for human civilization science and technology and life be added to it is many unlimited
Imagination and possibility.At present under the effort of most research teams, there is considerable degree of understanding to carbon nanotubes, this
Invention inventor is dedicated to the unique rigid structure of carbon nanotubes and carries out composite wood research, and is tied with a variety of glue materials, base material collocation
It closes, it would be desirable to apply in a variety of composite material application industries.
Multiple-wall carbon nanotube is since with rock-steady structure, high degree of rigidity, good ductility, low-density be frivolous, electrothermal ring
The factors such as border stabilization all show it and are applied to the feasibility of acoustic product, and the research neck being good at for a long time for our company
Domain, therefore actively research and development combine it in nanometer material, glue material and with special carving figure lines system to inventor with multi wall nano carbon material
Standby vibrating membrane, hope can create small high tone quality vibrating membrane and application apparatus.
Inventor has done considerable research for the material of carbon nanotubes, it is desirable to by carbon nanotubes
Material property improves acoustics sound film in the prior art so that the sound film can simultaneously to low frequency and high frequency audio communication can generate compared with
Good reaction, and the generation of the distortion factor is reduced, show the higher acoustic equipment in sound quality.
According to market report, the shipment amounts of the products such as smartphone, tablet computer be 15.53 hundred million (mobile phone 1,400,000,000,
Hundred million), and its rate of growth continues soaring, also to drive the quantity required of loud speaker tablet computer 1.53.In the consumption of loud speaker
In person's investigation, the consumer more than 50% considers that its sound quality is experienced, and about 20% consumer is then using price as overriding concern.
Therefore inventor is to research and develop carbon nanotubes combination vibrating membrane, it is desirable to have better audio presentation, and in electroacoustic industry
More preferably solution party can be provided to invent.
Vibrating membrane is the most important key part and component of sound quality to be influenced in acoustic assembly, and Microspeaker is intelligent at present
The mobile phone spare part that perhaps polyelectron equipment can not lack.Such as laptop and tablet computer.TrendForce points out,
About 1,400,000,000, laptop shipment pre- appraisal about 1.65 hundred million, tablet computer are estimated in wisdom mobile phone shipment in 2016 in advance
1.53 hundred million.Also because machine design is constantly lightening, the loudspeaker in smart machines is caused also constantly to tighten space.This
The design for combining inventor in carbon nanotubes vibrating membrane is wished in invention, is applied on sound film, can be in smaller mechanism space
It is in that sound shows to provide higher, to take one's place in the market.
Therefore the present invention wishes to propose a kind of brand-new carbon nanotubes composite membrane vibration and its manufacturing method for loud speaker,
To solve the disadvantage in the above-mentioned prior art.
Invention content
So being proposed the purpose of the present invention is to solve the problem in the above-mentioned prior art, in the present invention a kind of for raising
The carbon nanotubes composite membrane vibration and its manufacturing method of sound device are coated with a nano-sized carbon tube layer so that the substrate on a basal layer
Nano-sized carbon tube layer place is coated on layer can increase its hardness and toughness, and generates resonance suitable for the vibration with high frequency and ring
It answers, by the way that preferable high frequency message can be generated after resonance, and is located at the position except carbon nanotubes layer on the basal layer, then fits
Corresponding vibration is generated in absorbing low frequency energy, and then generates preferable low frequency message.The present invention passes through nano-sized carbon tube layer
The characteristic of material selection and sizing material, basal layer and carbon nanotubes can be effectively improved vibrating membrane in low-and high-frequency by adjusting design
It shows, is effectively solved in the prior art in sound, the shortcomings that vibrating membrane is adapted only to high-frequency signal or is adapted only to low frequency signal is promoted whole
Body is in the performance of sound.
In order to achieve the above objectives, a kind of carbon nanotubes composite membrane vibration for loud speaker is proposed in the present invention, including：One
Basal layer；One nano-sized carbon tube layer is coated on the basal layer upper surface, which includes colloid and carbon nanotubes composite wood
Material, i.e., the nano-sized carbon tube layer by the colloid and the nanometer carbon pipe composite material the heated institute after making its moisture evaporation of mixed solution
The Stable Carbon pipe composite wood colloidal dispersion of formation, and formed after spraying；Wherein, carbon nanotubes surface generates part function
Change the modification of group, and effectively improve high frequency and low frequency is in audio fruit；It wherein, can part during being functionalized and modifying
The structure of slight damage carbon nanotubes so that the carbon nanotubes after modification can pass through Electrostatic Absorption mode, covalent synthesis mode
It is combined with the material being worth with high acoustics, and improves the sound quality of high frequency and low frequency.
Wherein, which is shortened type CNT, is acidified carbon nanotubes (COOH-MWCNT), nano grain of silver
Son and the composite material (AgNPs-COOH-MWCNT) of acidification carbon nanotubes, the composite wood of gold nanoparticle and acidification carbon nanotubes
Expect the composite material (Fe of (AuNPs-COOH-MWCNT), Fe nanometer particles and acidification carbon nanotubes3O4 NPs-COOH-MWCNT)、
Composite material (the Al@Fe of ferro-aluminum nano-particle and acidification carbon nanotubes3O4 NPs-COOH-MWCNT) one such.
Wherein, the length of the nanometer carbon pipe composite material is at 100 μm or less；Wherein, the length of shortened type CNT be 1 μm ~
10µm；Wherein, the size of the Nano silver grain, gold nanoparticle, Fe nanometer particles and ferro-aluminum nano-particle is between 20 nm to 1 μ
Between m；Wherein, the heating temperature of the mixed solution is 50 DEG C ~ 80 DEG C；Wherein, which is artificial rubber, natural rubber, UV
Glue or heat curing type sizing material are one such；Wherein, the material of the basal layer is PET, rough paper, nonwoven fabric, silk fabric, aluminium flake, wood
Piece or foam are one such.
Wherein, the heated mixed solution is sprayed on the basal layer by microvesicle spraying method by forms the nano-sized carbon
Tube layer, by the mixed solution after heating by the nozzle with 100 μm of holes below, broken up through height extrusion contracting to be formed it is tiny
Colloid microvesicle, and be sprayed on the basal layer.
Wherein, the number of spraying is 1 time to 16 times so that being formed by the nano-carbon tube coating has multilayer hardness knot
Structure；Wherein, content of the nanometer carbon pipe composite material in the nano-sized carbon tube layer is 2% ~ 22%.
Wherein, which is sprayed on the central part of the basal layer upper surface, so the nano-sized carbon tube layer is also only
It is distributed in the central part of the basal layer, so that the center of entire composite membrane vibration has higher hardness, and around
It is then relatively relatively soft.
Wherein, which is sprayed on the central part of the basal layer upper surface and is formed with the central part concentric
The round outer circle position without being in contact.
The present invention also proposes a kind of manufacturing method of the carbon nanotubes composite membrane vibration for loud speaker, including following step
Suddenly：A basal layer is taken, and it is required shape to cut the basal layer；After nanometer carbon pipe composite material and colloid are mixed uniformly
Stirring forms mixed solution；Heat the mixed solution so that the moisture evaporation in it, then the only remaining colloid of the mixed solution and
The nanometer carbon pipe composite material；Mixed solution after heating is sprayed into the basal layer upper surface, and forms a nano-sized carbon tube layer.
Beneficial effects of the present invention are：Effective improvement High-frequency machine low frequency is in audio fruit.
Description of the drawings
The component combination diagram of Fig. 1 display present invention, wherein nano-sized carbon tube layer is sprayed at the central part of basal layer；
Fig. 2 shows the schematic cross-section of Fig. 1；
Another component combination diagram of Fig. 3 display present invention, wherein the upper surface that nano-sized carbon tube layer is sprayed at basal layer is whole
Body；
Fig. 4 shows the schematic cross-section of Fig. 3；
The component combination diagram of Fig. 5 display present invention, wherein nano-sized carbon tube layer is sprayed at the central part and outer circle of basal layer
Position；
Fig. 6 shows the schematic cross-section of Fig. 5；
The fabrication schedule of the carbon nanotubes composite membrane vibration of the step flow chart display present invention of Fig. 7.
Reference sign
10 basal layers
20 nano-sized carbon tube layer
11 central parts
12 outer circle positions.
Specific implementation mode
The now careful just structure composition of the present invention and the effect of can be generated and advantage, coordinates attached drawing, and according to the present invention one
Preferred embodiment, detailed description are as follows.
Please refer to Fig.1 to shown in Fig. 7, show the present invention for the carbon nanotubes composite membrane vibration of loud speaker and its manufacture
Method.Because the surface of general selected carbon nanotubes does not have any functional group and length is at 300 μm or more, can not be direct
It is coated on vibrating membrane, so chemical treatment must be first passed through, so that carbon nanotubes surface is generated the modification of part functionalizing group, together
When the length of carbon nanotubes is also reduced to 100 μm hereinafter, surface functionalized carbon nanotubes applies its functionalizing group's energy
More effectively dispersion is done with colloid and is combined.Then the carbon nanotubes after again will be processed is combined with colloid and is applied to vibrating membrane
On, and effectively improve high frequency and low frequency is in audio fruit.Wherein, meeting part slight damage is received during being functionalized modification
The structure of rice carbon pipe so that the carbon nanotubes after modification can be by Electrostatic Absorption mode, covalent synthesis mode and with loud
The material (such as metal nanoparticle) for learning value combines, and achievees the effect that complementation, and provide more polynary material selection and
Using.The carbon nanotubes composite membrane vibration of the present invention includes following assemblies：
The material of one basal layer 10, the basal layer 10 can be for PET, rough paper, nonwoven fabric, silk fabric, aluminium flake, wood chip or foam wherein
One kind.
One nano-sized carbon tube layer 20, is coated on 10 upper surface of basal layer, which includes colloid and nano-sized carbon
Pipe composite material, i.e. the nano-sized carbon tube layer 20 are heated to make it by the mixed solution of the colloid and the nanometer carbon pipe composite material
It is formed by Stable Carbon pipe composite wood colloidal dispersion after moisture evaporation and is formed after spraying.Wherein, the carbon nanotubes is multiple
The length of condensation material is at 100 μm or less.
Wherein, which can be shortened type CNT, acidification carbon nanotubes (COOH-MWCNT), Yin Na
Rice corpuscles and composite material (AgNPs-COOH-MWCNT), the gold nanoparticle of acidification carbon nanotubes are answered with acidification carbon nanotubes
Composite material (the Fe of condensation material (AuNPs-COOH-MWCNT), Fe nanometer particles and acidification carbon nanotubes3O4 NPs-COOH-
MWCNT), composite material (the Al@Fe of ferro-aluminum nano-particle and acidification carbon nanotubes3O4 NPs-COOH-MWCNT) therein one
Kind.Wherein, the length of shortened type CNT is 1 μm ~ 10 μm.
Wherein, the size of the Nano silver grain, gold nanoparticle, Fe nanometer particles and ferro-aluminum nano-particle is between 20 nm
To between 1 μm.
The colloid can be artificial rubber, natural rubber, UV glue or heat curing type sizing material, wherein with natural rubber and UV glue
It is preferred.
Wherein, content of the nanometer carbon pipe composite material in the nano-sized carbon tube layer 20 can be 2% ~ 22%.
Wherein, the heating temperature of the mixed solution is 50 DEG C ~ 80 DEG C.
Wherein, the heated mixed solution is sprayed to by microvesicle spraying method on the basal layer 10, and is formed this and received
Rice carbon tube layer 20 breaks up shape by the mixed solution after heating by the nozzle with 100 μm of holes below through height extrusion contracting
At tiny colloid microvesicle, and it is sprayed on the basal layer 10.Wherein, in spraying process, the number of spraying can be 1 time to 16
It is secondary so that being formed by the nano-carbon tube coating 20 has multilayer solid structure.
As shown in Figures 1 and 2, in the present invention nano-sized carbon tube layer is sprayed in the central part 11 of 10 upper surface of basal layer
20, so the nano-sized carbon tube layer 20 is also distributed only over the central part 11 of the basal layer 10, so that entire complex vibration
The center of film has higher hardness, and surrounding is then relatively relatively soft.
The nano-sized carbon tube layer 20 can increase the hardness and toughness of the central part 11, and make the basal layer 10 this in
Position 11 is entreated to be suitable for generating resonance response with the vibration of high frequency, by that can generate preferable high frequency message after resonance, and the base
Peripheral part on bottom 10 outside nano-sized carbon tube layer 20 then is suitable for absorbing the energy of low frequency, and generates preferable low frequency message.
Nanometer carbon pipe composite material used in the present invention can be the nano-particle-nano-sized carbon combined with nano-particle
Pipe composite construction, design concept and the application of this composite construction are being attached to after carbon nanotubes it is expected to increase based on nano-particle
The stress characteristics of plus nano carbon pipe, after the nanometer carbon pipe composite material is sprayed on basal layer 10, because nano-particle increases
The stress of carbon nanotubes, and the hardness of whole nano-sized carbon tube layer 20 is increased, while also being generated on the basal layer 10
Multiple stress points.When the basal layer 10 vibrates, these stress points can also assist in the overexercise performance for reducing entire vibrating membrane.
Since there is the nano-sized carbon tube layer 20 quite high toughness and rigidity, young ' can be up to the 1000 of steel
Times, so can increase hardness and rigidity at this plus the nano-sized carbon tube layer 20 at the top of the basal layer 10, thus it is right
In the vibration of high frequency, the sensitivity of its loudness and reaction can be enhanced, and by the presentation of the quality height of entire high-frequency signal.And
10 outer periphery of basal layer is not due to adding the nano-sized carbon tube layer 20, it is possible to generate preferable response to low frequency.
As shown in Figures 3 and 4, in the present invention, when the upper surface of the basal layer 10 integrally covers the nano-sized carbon tube layer 20,
The experiment proved that still can reach quite good effect.
As shown in Figures 5 and 6, in the present invention, when the nano-sized carbon tube layer 20 is sprayed on the center of 10 upper surface of basal layer
Position 11 and with the central part 11 formed concentric circles without be in contact outer circle position 12 when, the experiment proved that, still can reach
Quite good effect.
Preferably, in the present invention, which can form a variety of different forms, help to eliminate high series
Harmonic wave, such as secondary, high series three times harmonic wave, and generate good sound quality.
As shown in fig. 7, further including the process for manufacturing the carbon nanotubes composite membrane vibration in the present invention comprising following
Step：
Step 110：A basal layer 10 is taken, the material of the basal layer 10 is such as PET, rough paper, nonwoven fabric, silk fabric, aluminium flake, wood chip
Or foam.And it is required shape to cut the basal layer 10.
Step 120：After nanometer carbon pipe composite material and colloid are mixed, uniform stirring forms mixed solution.Wherein, this is received
The length of rice carbon pipe composite material is at 100 μm or less.
Step 130：The mixed solution is heated, so that the moisture evaporation in it, then the only remaining colloid of the mixed solution and should
Nanometer carbon pipe composite material.Wherein, the heating temperature of the mixed solution is 50 DEG C ~ 80 DEG C.
Step 140：Mixed solution after heating is sprayed into 10 upper surface of basal layer, and forms a nano-sized carbon tube layer
20。
Mixed solution after the heating can be sprayed to the central part 11 of 10 upper surface of basal layer in the present invention, formed
One nano-sized carbon tube layer 20, (step 140-1) as shown in Figures 1 and 2.Therefore it can increase the hardness of the central part 11 and tough
Degree, and so that the central part 11 of the basal layer 10 is suitable for vibration corresponding with the vibration of high frequency generation, it generates preferable
High frequency message, and the peripheral part on the basal layer 10 outside nano-sized carbon tube layer 20 then is suitable for absorbing the energy production vibration of low frequency,
And generate preferable low frequency message.
Or the mixed solution after the heating is sprayed to the upper surface of the basal layer 10, a nano-sized carbon tube layer is integrally formed
20, (step 140-2) as shown in Figures 3 and 4.
Or by the mixed solution after the heating spray to 10 upper surface of basal layer central part 11 and with the center
Position 11 forms concentric circles without the outer circle position 12 that is in contact, therefore forms a nano-sized carbon tube layer 20, as shown in Figures 5 and 6
(step 140-3).
Wherein, in above-mentioned steps 140-1,140-2,140-3, wherein the mixed solution after heating is logical in spraying
It crosses microvesicle spraying method to spray on the basal layer 10, and forms the nano-sized carbon tube layer 20, the mixed solution after heating is led to
The nozzle with 100 μm of holes below is crossed, breaks up to form tiny colloid microvesicle through height extrusion contracting, and is sprayed at the basal layer 10
On.Wherein, in spraying process, the number of spraying can be 1 time to 16 times so that be formed by the nano-carbon tube coating 20 tool
There is multilayer solid structure.
Through the above steps 140-2 or step 140-3 be formed by nano-sized carbon tube layer 20 the experiment proved that, also can obtain
To quite good effect.
Wherein, which can be shortened type CNT, acidification carbon nanotubes (COOH-MWCNT), Yin Na
Rice corpuscles and composite material (AgNPs-COOH-MWCNT), the gold nanoparticle of acidification carbon nanotubes are answered with acidification carbon nanotubes
Composite material (the Fe of condensation material (AuNPs-COOH-MWCNT), Fe nanometer particles and acidification carbon nanotubes3O4 NPs-COOH-
MWCNT), composite material (the Al@Fe of ferro-aluminum nano-particle and acidification carbon nanotubes3O4 NPs-COOH-MWCNT) therein one
Kind.Wherein, the length of shortened type CNT is 1 μm ~ 10 μm.
Wherein, the size of the Nano silver grain, gold nanoparticle, Fe nanometer particles and ferro-aluminum nano-particle is between 20 nm
To between 1 μm.
The colloid can be artificial rubber, natural rubber, UV glue or heat curing type sizing material, wherein with natural rubber and UV glue
It is preferred.
Wherein, content of the nanometer carbon pipe composite material in the nano-sized carbon tube layer 20 can be 2% ~ 22%.
Preferably, in the present invention, which can form a variety of different forms, help to eliminate high series
Harmonic wave, such as secondary, high series three times harmonic wave, and generate good sound quality.
Inventor has done considerable research and experiment, composite membrane vibration of the invention to above-mentioned composite membrane vibration
It is that a nano-sized carbon tube layer is coated on a basal layer so that the hardness that is coated on the basal layer in place of the nano-sized carbon tube layer and tough
Degree is promoted, and generates preferable high frequency response suitable for the vibration with high frequency, generates preferable high frequency message, and the basal layer is upper
Position except nano-sized carbon tube layer then absorbs the vibration of low frequency with respect to compared with suitable, and generates preferable low frequency message.This hair
Bright material selection and sizing material, the characteristic of basal layer and carbon nanotubes by nano-sized carbon tube layer, can be with for high frequency and low frequency
It generates and is preferably showed in sound, effective solution vibrating membrane in the prior art is adapted only to high-frequency signal or is adapted only to low frequency letter
Number the shortcomings that, promote the performance of overall sound quality.
The nanometer carbon pipe composite material of present invention application high rigidity mixes to form nano-sized carbon tube layer 20 with colloid, compared to city
It is quite rare to sell for product.The nano-sized carbon tube layer 20 of the present invention can reduce distortion rate, improve audio presentation, reduce thin
Thickness, therefore powerful competitive advantage can be provided.
The carbon nanotubes of present invention application modification adjusts carbon nanotubes particle size and applies carbon nanotubes dispersion technology,
And its mutual melting property with colloid can be increased, distortion rate is reduced, and be easy to reach complicated pattern and homogeneity.
In conclusion the design of consideration of hommization of the present invention, quite meets actual demand.Its specific improvement prior art
Disadvantage obviously has the advantages that breakthrough progress compared to the prior art, the enhancement that has effects that really, and non-is easy to reach.
The present invention does not disclose or is exposed in domestic and external document in the market, has met patent statute.
Above-mentioned detailed description is illustrating for a possible embodiments of the invention, and still, which not uses
It is all without departing from equivalence enforcement made by technical spirit of the present invention or change with the scope of patent protection of the limitation present invention, it should all wrap
In the scope of the claims contained in the present invention.
Claims (14)
1. a kind of carbon nanotubes composite membrane vibration for loud speaker, which is characterized in that including：
One basal layer；
One nano-sized carbon tube layer is coated on the basal layer upper surface, which includes colloid and nanometer carbon pipe composite material,
I.e. the nano-sized carbon tube layer is the heated institute after making its moisture evaporation of mixed solution by the colloid and the nanometer carbon pipe composite material
The Stable Carbon pipe composite wood colloidal dispersion of formation is simultaneously formed after spraying；
Wherein, carbon nanotubes surface generates the modification of part functionalizing group, and effectively improves the sound quality of high frequency and low frequency；Its
In, be functionalized modify during can part slight damage carbon nanotubes structure so that carbon nanotubes after modification can be with
It is combined by Electrostatic Absorption mode, covalent synthesis mode and material with high acoustics value, and improves high frequency and low frequency
In audio fruit.
2. being used for the carbon nanotubes composite membrane vibration of loud speaker as described in claim 1, which is characterized in that the carbon nanotubes is multiple
Condensation material is shortened type CNT, is acidified carbon nanotubes (COOH-MWCNT), the composite material of Nano silver grain and acidification carbon nanotubes
(AgNPs-COOH-MWCNT), gold nanoparticle and composite material (AuNPs-COOH-MWCNT), the iron of acidification carbon nanotubes are received
Composite material (the Fe of rice corpuscles and acidification carbon nanotubes3O4 NPs-COOH-MWCNT), ferro-aluminum nano-particle and acidification nano-sized carbon
Composite material (the Al@Fe of pipe3O4 NPs-COOH-MWCNT) one such.
3. being used for the carbon nanotubes composite membrane vibration of loud speaker as claimed in claim 2, which is characterized in that the carbon nanotubes is multiple
The length of condensation material is at 100 μm or less；Wherein, the length of shortened type CNT is 1 μm ~ 10 μm；Wherein, the Nano silver grain, gold
The size of nano-particle, Fe nanometer particles and ferro-aluminum nano-particle is between 20 nm to 1 μm；Wherein, the mixed solution plus
Hot temperature is 50 DEG C ~ 80 DEG C；Wherein, which is that artificial rubber, natural rubber, UV glue or heat curing type sizing material are one such；
Wherein, the material of the basal layer is that PET, rough paper, nonwoven fabric, silk fabric, aluminium flake, wood chip or foam are one such.
4. being used for the carbon nanotubes composite membrane vibration of loud speaker as described in claim 1, which is characterized in that this heated is mixed
It is sprayed on the basal layer by microvesicle spraying method with solution by forms the nano-sized carbon tube layer, by the mixed solution after heating
It by the nozzle with 100 μm of holes below, breaks up to form tiny colloid microvesicle through height extrusion contracting, and is sprayed at the basal layer
On.
5. being used for the carbon nanotubes composite membrane vibration of loud speaker as claimed in claim 4, which is characterized in that the number of spraying is
1 time to 16 times so that being formed by the nano-carbon tube coating has multilayer solid structure；Wherein, the nanometer carbon pipe composite material
Content in the nano-sized carbon tube layer is 2% ~ 22%.
6. being used for the carbon nanotubes composite membrane vibration of loud speaker as described in claim 1, which is characterized in that the nano-sized carbon tube layer
It is sprayed on the central part of the basal layer upper surface, so the nano-sized carbon tube layer is also distributed only over the central portion of the basal layer
Position, so that the center of entire composite membrane vibration has higher hardness, and surrounding is then relatively relatively soft.
7. being used for the carbon nanotubes composite membrane vibration of loud speaker as described in claim 1, which is characterized in that the nano-sized carbon tube layer
It is sprayed on the central part of the basal layer upper surface and forms concentric circles without the outer circle position that is in contact with the central part.
8. a kind of manufacturing method of carbon nanotubes composite membrane vibration for loud speaker, which is characterized in that include the following steps：
A basal layer is taken, and it is required shape to cut the basal layer；
Uniform stirring after nanometer carbon pipe composite material and colloid are mixed, forms mixed solution；
The mixed solution is heated, so that the moisture evaporation in it, then the only remaining colloid of the mixed solution and the carbon nanotubes are compound
Material；
Mixed solution after heating is sprayed into the basal layer upper surface, and forms a nano-sized carbon tube layer.
9. the manufacturing method for the carbon nanotubes composite membrane vibration of loud speaker as claimed in claim 8, which is characterized in that spray
It is coated onto the central part of the basal layer upper surface, and forms the nano-sized carbon tube layer.
10. the manufacturing method for the carbon nanotubes composite membrane vibration of loud speaker as claimed in claim 8, which is characterized in that
It sprays to the central part of the basal layer upper surface and forms concentric circles without the outer circle position that is in contact with the central part, because
This, forms the nano-sized carbon tube layer.
11. the manufacturing method for the carbon nanotubes composite membrane vibration of loud speaker as claimed in claim 8, which is characterized in that
The mixed solution after the heating is sprayed to by microvesicle spraying method on the basal layer in spraying, and forms the carbon nanotubes
Layer, by the mixed solution after the heating by the nozzle with 100 μm of holes below, broken up through height extrusion contracting to be formed it is tiny
Colloid microvesicle, and be sprayed on the basal layer.
12. the manufacturing method for the carbon nanotubes composite membrane vibration of loud speaker as claimed in claim 11, which is characterized in that
The number of spraying is 1 time to 16 times so that being formed by the nano-carbon tube coating has multilayer solid structure；Wherein, the nanometer
Content of the carbon pipe composite material in the nano-sized carbon tube layer is 2% ~ 22%.
13. the manufacturing method for the carbon nanotubes composite membrane vibration of loud speaker as claimed in claim 8, which is characterized in that
The nanometer carbon pipe composite material be shortened type CNT, acidification carbon nanotubes (COOH-MWCNT), Nano silver grain with acidification nano-sized carbon
The composite material (AgNPs-COOH-MWCNT) of pipe, the composite material (AuNPs-COOH- of gold nanoparticle and acidification carbon nanotubes
MWCNT), composite material (Fe of Fe nanometer particles and acidification carbon nanotubes3O4 NPs-COOH-MWCNT), ferro-aluminum nano-particle with
It is acidified composite material (the Al@Fe of carbon nanotubes3O4 NPs-COOH-MWCNT) one such.
14. the manufacturing method for the carbon nanotubes composite membrane vibration of loud speaker as claimed in claim 13, which is characterized in that
The length of the nanometer carbon pipe composite material is at 100 μm or less；Wherein, the length of shortened type CNT is 1 μm ~ 10 μm；Wherein, should
Nano silver grain, gold nanoparticle, Fe nanometer particles and ferro-aluminum nano-particle size between 20 nm to 1 μm；Wherein,
The heating temperature of the mixed solution is 50 DEG C ~ 80 DEG C；Wherein, which is artificial rubber, natural rubber, UV glue or heat curing type glue
Expect one such；Wherein, the material of the basal layer be PET, rough paper, nonwoven fabric, silk fabric, aluminium flake, wood chip or foam wherein
One kind.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI731703B (en) * | 2020-06-01 | 2021-06-21 | 光宇材料股份有限公司 | Single-layer acoustic diaphragm and manufacturing method of single-layer acoustic diaphragm |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003319490A (en) * | 2002-04-19 | 2003-11-07 | Sony Corp | Diaphragm and manufacturing method thereof, and speaker |
| CN101087906A (en) * | 2004-10-29 | 2007-12-12 | 国立科学研究中心 | Composite fibres and asymmetrical fibres obtained from carbon nanotubes and colloidal particles |
| CN101288336A (en) * | 2005-10-14 | 2008-10-15 | Kh化学有限公司 | Acoustic diaphragm and speakers having the same |
| CN101508845A (en) * | 2008-02-14 | 2009-08-19 | 苏峻苇 | Thermal interface material, method for producing the same and electronic apparatus using the material |
| WO2009113435A1 (en) * | 2008-03-14 | 2009-09-17 | Kaneko Tatsuo | Sugar derivative preparation |
| WO2011005279A1 (en) * | 2009-07-08 | 2011-01-13 | Toyo Boseki Kabushiki Kaisha | Method for producing high strength polyethylene fiber and high strength polyethylene fiber |
| CN101998209A (en) * | 2009-08-11 | 2011-03-30 | 清华大学 | Centering support chip and loudspeaker using same |
| CN102372267A (en) * | 2010-08-18 | 2012-03-14 | 范福仓 | Cold spraying method for nanometer material |
| CN102822253A (en) * | 2010-03-03 | 2012-12-12 | 3M创新有限公司 | Composite multilayered structure with nanostructured surface |
| CN103214891A (en) * | 2013-04-09 | 2013-07-24 | 辅讯光电工业（苏州）有限公司 | Compound containing carbon nano-tube, hard coating and forming method thereof and hard coating film |
| CN104244151A (en) * | 2013-06-21 | 2014-12-24 | 鸿富锦精密工业（深圳）有限公司 | Loudspeaker |
| CN105323697A (en) * | 2014-07-28 | 2016-02-10 | 美特科技(苏州)有限公司 | Manufacture method of composite vibrating diaphragm and vibrating diaphragm manufactured by method |
| CN106115656A (en) * | 2016-06-22 | 2016-11-16 | 嘉兴学院 | A kind of preparation method of carbon nano-tube film |
-
2017
- 2017-02-27 CN CN201710107939.1A patent/CN108513244B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003319490A (en) * | 2002-04-19 | 2003-11-07 | Sony Corp | Diaphragm and manufacturing method thereof, and speaker |
| CN101087906A (en) * | 2004-10-29 | 2007-12-12 | 国立科学研究中心 | Composite fibres and asymmetrical fibres obtained from carbon nanotubes and colloidal particles |
| CN101288336A (en) * | 2005-10-14 | 2008-10-15 | Kh化学有限公司 | Acoustic diaphragm and speakers having the same |
| CN101508845A (en) * | 2008-02-14 | 2009-08-19 | 苏峻苇 | Thermal interface material, method for producing the same and electronic apparatus using the material |
| WO2009113435A1 (en) * | 2008-03-14 | 2009-09-17 | Kaneko Tatsuo | Sugar derivative preparation |
| WO2011005279A1 (en) * | 2009-07-08 | 2011-01-13 | Toyo Boseki Kabushiki Kaisha | Method for producing high strength polyethylene fiber and high strength polyethylene fiber |
| CN101998209A (en) * | 2009-08-11 | 2011-03-30 | 清华大学 | Centering support chip and loudspeaker using same |
| CN102822253A (en) * | 2010-03-03 | 2012-12-12 | 3M创新有限公司 | Composite multilayered structure with nanostructured surface |
| CN102372267A (en) * | 2010-08-18 | 2012-03-14 | 范福仓 | Cold spraying method for nanometer material |
| CN103214891A (en) * | 2013-04-09 | 2013-07-24 | 辅讯光电工业（苏州）有限公司 | Compound containing carbon nano-tube, hard coating and forming method thereof and hard coating film |
| CN104244151A (en) * | 2013-06-21 | 2014-12-24 | 鸿富锦精密工业（深圳）有限公司 | Loudspeaker |
| CN105323697A (en) * | 2014-07-28 | 2016-02-10 | 美特科技(苏州)有限公司 | Manufacture method of composite vibrating diaphragm and vibrating diaphragm manufactured by method |
| CN106115656A (en) * | 2016-06-22 | 2016-11-16 | 嘉兴学院 | A kind of preparation method of carbon nano-tube film |
Non-Patent Citations (1)
| Title |
|---|
| 蓝雪衍: "碳纳米管的表面修饰及其应用", 《百度文库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI731703B (en) * | 2020-06-01 | 2021-06-21 | 光宇材料股份有限公司 | Single-layer acoustic diaphragm and manufacturing method of single-layer acoustic diaphragm |
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| Publication number | Publication date |
|---|---|
| CN108513244B (en) | 2021-06-11 |
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Effective date of registration: 20210719 Address after: China Taiwan New Taipei City Tucheng District No. 66 Zhongshan Road Patentee after: HON HAI PRECISION INDUSTRY Co.,Ltd. Address before: Taiwan, Taipei, China Chongqing South Road, No. 57, building No. 12, No. 6 Patentee before: Shih Hua Technology Ltd. |