CN105307087A - Curved-surface sound box device - Google Patents
Curved-surface sound box device Download PDFInfo
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- CN105307087A CN105307087A CN201510733300.5A CN201510733300A CN105307087A CN 105307087 A CN105307087 A CN 105307087A CN 201510733300 A CN201510733300 A CN 201510733300A CN 105307087 A CN105307087 A CN 105307087A
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Abstract
The invention discloses a curved-surface sound box device. The device includes a sound box whose outer contour is a curved surface, and also includes a thin film loudspeaker attached to the curved surface of the sound box. The thin film loudspeaker includes: at least one sound production thin film; at least one conductive thin film which is coated on the sound production thin film and made of nano metal wire material; at least one insulating layer attached to the conductive thin film, the insulating layer and/or tone quality improving layer includes a plurality of micro machining structures; and at least two conductive terminals attached to the conductive thin films and connected with a loudspeaker drive circuit. According to the curved surface sound box device provided by the invention, the characteristic that the thin film loudspeaker is fairly soft and can be made into arbitrary shapes at will is utilized, a traditional sound box is manufactured into shapes of various curved surfaces, since the thin film loudspeaker can be bent, rolled or folded, the thin film loudspeaker is very easy to attach to the surface of the curved surface, and the sound box provided by the invention is light in weight and convenient to carry, and has a good sounding effect, and can be made into various required shapes, and is suitable for being used in various occasions.
Description
Technical field
The present invention relates to sound equipment, be specifically related to a kind of curved surface acoustics.
Background technology
Sound equipment sound equipment of the prior art, there are the form sound equipments such as electrodynamic type (i.e. moving-coil type), electrostatic (i.e. condenser type), electromagnetic type (i.e. reed) or piezoelectric type (i.e. crystal formula), they have common shortcoming, and namely volume is large, outward appearance is heavy, constant movement, production procedure is many, cost is more high.
The another one shortcoming that traditional loud speaker has is exactly that a plane is only limited in the broadcasting of sound, even if there is a little radian, also mostly can not contain the scope of 180 degree, sound equipment itself is more impossible makes rounding top and bottom pattern, such as cylindrical, spherical, oval or egg type, also or semi-cylindrical, hemisphere, half elliptic, the shapes such as half egg type.
In the prior art, also occur the concept of bent thin-film acoustic, but the most tonequality of thin-film acoustic of the prior art is poor, the requirement tonequality of music being required to higher user can not met.
Summary of the invention
For the deficiencies in the prior art, the invention discloses a kind of curved surface loudspeaker box device.
Technical scheme of the present invention is as follows:
A kind of curved surface acoustics, the profile of described sound equipment is curved surface, and also comprise the wafer speaker be attached on sound equipment curved surface, described wafer speaker comprises:
At least one sound-emitting membrane, described sound-emitting membrane comprises and at least onely possesses the vibration film of dipole moment charge distribution characteristics and at least one tone quality improving layer;
At least one conductive film, is coated on described sound-emitting membrane; Described conductive film is that nano metal wire material is made;
At least one insulating barrier, is attached on conductive film;
At least two conducting terminals, are attached on described conductive film, connect loudspeaker driving circuit;
Described tone quality improving layer is that the material all different with the material of described vibration film and conductive film is made.The profile of described sound equipment is cylindrical, spherical, oval, egg type, semi-cylindrical, hemisphere, half elliptic or half egg type.
Its further technical scheme is: described tone quality improving layer and/or described surface of insulating layer comprise many group microfabrication structures; Often organize microfabrication structure and comprise a microfabrication structure or the identical or not identical microfabrication structure of multiple shape; The length of side that described microfabrication structure occupies is 20 μm ~ 10mm; Described microfabrication structure is hollow bubble, or solid pyramid, taper shape, prismatic, cylindrical, cheese or irregular shape are protruding.Pyramid comprises pyramid, triangular pyramid etc., prismaticly comprises side is placed, triangular prism in roof shape.
Its further technical scheme is: in described many group microfabrication structures, the length of side that often group microfabrication structure occupies is less than 10mm.
Its further technical scheme is: described sound-emitting membrane comprises double-layer films structure, and described tone quality improving laminating is attached on described vibration film.
Its further technical scheme is: the shape of described tone quality improving layer is sheet, thread, strip or netted.
Its further technical scheme is: described sound-emitting membrane is thin film structure, and described tone quality improving layer becomes with vibration film that checkerboard grid shape is spaced apart to link together.
Its further technical scheme is: described nano metal wire material is nano-silver thread, NANO CRYSTAL COPPER WIRE, nanometer iron wire or nanometer aluminum steel.
Its further technical scheme is: described nano metal wire material is coated on described sound-emitting membrane by wet technological method for processing.
Its further technical scheme is: described wet technological method for processing be spin-coating film method, spraying membrane formation process, silk screen print method, be printed as embrane method or scraper membrane formation process.
Its further technical scheme is: described insulating barrier is that UV photoresist or plastics are made; The material of described tone quality improving layer is bubble chamber film, paper, nylon, plastics or resin.
Advantageous Effects of the present invention is:
1, the present invention utilizes wafer speaker soft, arbitrarily can make the feature of arbitrary shape, traditional sound equipment is made the shape becoming multiple curved surface, because the thickness of wafer speaker is even thinner in millimeter rank, can bend, curling or folding, therefore be easy to be attached to curved surface, sound equipment of the present invention is lightweight, easy to carry, and voice effect is good, and various required shape can be made, be suitable for use in various occasion.
2, wafer speaker of the present invention uses nano metal wire material as conductive film, and make to form ohmic contact between conductive film and vibration film, contact resistance reduces greatly.Relative to use macromolecule conducting material as conductive film, macromolecule conducting material resistance is large, and audio frequency field decay is strong, and electric field suffered by the core of vibration film can be caused weak, then whole loud speaker sounding is uneven.And nano metal wire material can be coated on whole vibration film, and nano metal wire material conductive effect is good, can make the electric fields uniform suffered by whole vibration film, then vibrate also even, sound effect is better.
Known by experiment, conventional macromolecule conducting material, as pedot material, after contacting with vibration film, the square resistance of its contact-making surface is 1000 Ω/mouth; Common metal material, the square resistance of its contact-making surface is 10 Ω/mouth; And nano metal wire material, the square resistance of its contact-making surface, no less than metal material, substantially reduces resistance, can improve the uniformity of whole electric field, namely adds the uniformity of wafer speaker sounding.Further, if directly smear metal material on vibration film, because the audio frequency characteristics of metal material self, release and the propagation of vibration film sound can be affected greatly, have influence on middle bass effect and become poorer, and metal nano silver wire material coating of the present invention is on the one hand because good surface contact effect and conductivity, guarantee that vibration film is in energising situation, surface forms homogeneous electric field, realize good sounding effect, then not causing obstacle to the release of sound on the other hand, obtain good sound transmission effect, is best selection.
3, wafer speaker of the present invention uses nano metal wire material as conductive film, nano metal wire material is better than other conductive metal film parts and is also, on microcosmic, nano metal wire material is that multiple nano level metal wire overlap joint forms, and Fig. 1 is the microstructure schematic diagram of nano metal line.As shown in Figure 1, under the prerequisite not affecting its electric conductivity, have between nano metal line and have Micro porosity, so macroscopically, the transparent shape of nano metal line, this characteristic of nano metal line has the following advantages:
First, transparent conductive film is attached on the vibration film of transparent material, whole loud speaker can be made to be transparence, be suitable for loud speaker to be attached to the surface of any object and do not affect the form of object itself, preferablyly loud speaker to be directly attached on image or video display apparatus, increase the scope of application of the present invention, make the present invention have stronger practicality;
Secondly, after vibration film vibration is sounded, relative to traditional electric conducting material, the obstruction of nano metal wire material to sound that vibration film attaches reduces greatly, and better can discharge sound, the sound effect that loudspeaker film is sent is more excellent;
Again, bending effect and the pliable and tough effect of nano metal wire material are also better than traditional metal material, so the wafer speaker produced, are suitable for being attached to showing of any object, can bend as required, add practicality of the present invention.
The character of the vibration material 4, in wafer speaker itself determines that it is better in medium-high frequency sounding effect.The present invention on the basis of existing technology, by increasing the method for microfabrication structure on insulating barrier or sound-emitting membrane, greatly strengthen the voice effect of wafer speaker.Tone quality improving layer is that the material all different with the material of vibration film and conductive film is made, after vibration film produces sound, its vibrational energy can be propagated to different directions, on its route of transmission, when existence can vibrate sonorific material, this material vibrates will be caused, because material is different, then the optimum frequency of vibration sounding is different, and microfabrication structure can produce resonance to bass, different microfabrication structures can increase the bass concussion effect of different frequency, enhance the frequency response range of wafer speaker, the sounding effect of wafer speaker at full frequency band can be improved.
5, the wafer speaker in the present invention also add insulating barrier, to prevent from, in use procedure, electric shock accidents occurs, and insulating barrier can arrange microfabrication structure, the resonance in acoustic transmission path can be increased, and filtering out high-frequency noise in the process, effectively improve tonequality, make sound softer.Simultaneously insulating barrier can available protecting conductive film material, prevents coming off of electric conducting material
6, wafer speaker of the present invention also proposed a more excellent technical scheme, and namely sound-emitting membrane is thin film structure, and tone quality improving layer becomes with vibration film that checkerboard grid shape is spaced apart to link together.Such technical scheme, the technical scheme being attached to vibration film with tone quality improving laminating can reach the technique effect that close sound improves.But owing to being that tone quality improving layer and vibration film form sound-emitting membrane jointly, in a wafer speaker, the use amount of vibration film reduces greatly, and the prime cost of wafer speaker is just on vibration film, can reduce the manufacturing cost of whole wafer speaker like this.
Accompanying drawing explanation
Fig. 1 is the microstructure schematic diagram of nano metal wire material.
Fig. 2 is schematic diagram of the present invention.
Fig. 3 is the schematic diagram of the vibration film possessing dipole moment charge distribution characteristics.
Fig. 4 is the STRUCTURE DECOMPOSITION figure of embodiments of the invention 1.
Fig. 5 is the schematic diagram of single hollow bubble
Fig. 6 is the STRUCTURE DECOMPOSITION figure of embodiments of the invention 2.
Fig. 7 is the STRUCTURE DECOMPOSITION figure of embodiments of the invention 3.
Fig. 8 is the enlarged drawing of the microfabrication structure in embodiment 3 on insulating barrier local.
Embodiment
Fig. 2 is schematic diagram of the present invention.The profile of sound equipment 8 of the present invention is curved surface, also comprises the wafer speaker 10 on the curved surface being attached to sound equipment 8, also comprises loudspeaker driving circuit, and loudspeaker driving circuit connects the conducting terminal on wafer speaker, drives wafer speaker sounding.The profile of sound equipment 8 can be cylindrical, spherical, oval, egg type, semi-cylindrical, hemisphere, half elliptic or half egg type.
Wafer speaker in the present invention comprises following several structure:
At least one sound-emitting membrane.Sound-emitting membrane involving vibrations film and tone quality improving layer.
Vibration film is the film possessing dipole moment charge distribution characteristics, and the molecule namely forming vibration film is regularly arranged according to positive-negative polarity, and the two sides of vibration film has the polar character of " just " and " bearing " respectively.
Fig. 3 is the schematic diagram of the vibration film possessing dipole moment charge distribution characteristics, and in figure 3, it is as follows that molecule H-F has dipole moment:
μ＝Q×r
In above formula, μ is dipole moment, and Q is electric charge, and r is distance.
Signal realizes the vibration control to vibration film by electric conducting material, thus realizes sound result of broadcast.Vibration film can be polyvinylidene difluoride film.
Tone quality improving layer is that the material all different with the material of vibration film and conductive film is made, and can select the materials such as bubble chamber film, paper, nylon, plastics or resin
Tone quality improving layer can be attached on vibration film, and namely sound-emitting membrane is that tone quality improving layer and vibration film double-layer films are formed.In such cases, tone quality improving layer may be selected to be sheet, thread, strip, the different shape such as netted.The combination of tone quality improving layer and vibration film can be: tone quality improving layer embeds in the middle of upper and lower two-layer vibration film, glued together with vibration film; Or tone quality improving layer is glued on individual layer vibration film.
Tone quality improving layer also can become the spaced apart of checkerboard grid shape with vibration film and link together, a common composition large film, and namely sound-emitting membrane is single, the single thin film formation that material is heterogeneous.The mode that tone quality improving layer alternately exists with matrix or dot matrix and vibration film glued together.
Tone quality improving layer and vibration film also can select gummed form like other and above-mentioned gummed form class.
At least one conductive film, is made up of nano metal wire material, is coated on sound-emitting membrane.The conductive effect of nano metal line is better, so the sounding effect of vibration film is also better.Nano metal wire material is coated on described vibration film by wet technological method for processing.Wet technological method for processing can select spin-coating film method (spin-coating); Spraying membrane formation process (spray-coating); Silk screen print method (screen-printing); Slit membrane formation process (slit-coating); Be printed as embrane method (jet-printing); Scraper membrane formation process (bar-coating) etc.Nano metal wire material can be nano-silver thread, NANO CRYSTAL COPPER WIRE, nanometer iron wire or nanometer aluminum steel, and wherein the conductive effect of nano-silver thread is better, so the sounding effect of vibration film is also better.And nano metal wire material determined by its microstructure, its also better through effect to sound, can not produce sound and hinder, be conducive to the propagation of sound.
At least two conducting terminals, are attached on described conductive film, connect loudspeaker driving circuit.
At least one insulating barrier, is attached on conductive film.The material of insulating barrier can be made for UV photoresist or plastics.Because conductive film of the present invention is made up of nano metal wire material, conductive effect is good, in order to prevent in use, electric shock occur unexpected, increasing this insulating barrier.
Tone quality improving layer of the present invention, or/and surface of insulating layer also comprises the protruding microfabrication structure of many groups, is often organized microfabrication structure and is comprised at least one microfabrication structure or the identical or different microfabrication structure of multiple shape.The length of side that microfabrication structure occupies is 20 μm ~ 10mm, and namely for each microfabrication structure, it is in the square of 20 μm ~ 10mm that the position shared by its bottom surface can be placed on a length of side.Microfabrication structure can be hollow bubble, also can be that solid pyramid, taper shape, prismatic, cylindrical, cheese or irregular shape are protruding.Pyramid is specifically as follows pyramid, triangular pyramid etc., is prismaticly specifically as follows that side is placed, triangular prism in roof shape or other prism shape.In order to prevent the shape of microfabrication structure too mixed and disorderly, negative effect can be caused to sound effect on the contrary, so the present invention is by repeatedly testing, limits the length of side that often group microfabrication structure occupies and being less than 10mm for preferably to select.Often organize in microfabrication structure, the length of side of the position shared by difformity can be different.Microfabrication structure can be coated on corresponding film by wet technological method for processing or additive method.
Operation principle of the present invention is: the loudspeaker driving circuit that conducting terminal connects provides drive current, audio signal is passed to conductive film, drive current is transmitted on whole vibration film by conductive film, vibration film occurs vibrate and sound afterwards, sound is through tone quality improving layer and insulating barrier, high-frequency cacophony is filtered, and the vibration of the low-frequency sound of multi-frequency is reinforced, the high-quality music that loud speaker is finally sounded softer.
Wafer speaker of the present invention can be the rectangle of rule, square, and circular, polygon, the forms such as star, also can be irregular form, this point also embodies wafer speaker external morphology feature freely.
Hereafter with 3 embodiments, technical scheme of the present invention is described.
Embodiment 1.
Fig. 4 is the STRUCTURE DECOMPOSITION figure of embodiment 1.Embodiment 1 comprises:
One sound-emitting membrane, is made up of the vibration film 1 and the tone quality improving layer 3 be attached on vibration film 1 possessing dipole moment charge distribution characteristics.In the present embodiment, tone quality improving layer 3 is provided with diameter be the hollow bubble of 10mm as microfabrication structure, namely in the present embodiment, microfabrication structure is the hollow bubble that multiple shape is identical.Fig. 5 is the schematic diagram of single hollow bubble.The tone quality improving layer 3 of embodiment 1 forms for the bubble structure shown in multiple Fig. 5 is regularly arranged, and bubble structure 6 contain air, is provided with borderline structure 7 around each bubble structure, closed by bubble structure 6.
One conductive film 2, is coated on vibration film 1.The film that conductive film 2 is made for nano metal wire material can be nano-silver thread, nanometer aluminum steel, nanometer iron wire, NANO CRYSTAL COPPER WIRE etc.In the present embodiment, use nano-silver thread as metallic film.The aspect that nano-silver thread is better than other nano metal wire materials is, the conductivity of nano-silver thread is best, is more conducive to the uniformity of electric field, can make large-area wafer speaker.
Two conducting terminals 5, on pasted conductive film 2, connect loudspeaker driving circuit;
One insulating barrier 11, insulating barrier 11 is attached to outside conductive film 2, avoids in the wafer speaker course of work, accidentally touches the danger be electrically shocked being exposed to outer conductive film 2 and causing.In the present embodiment, insulating barrier 11 comprises the bulge-structure that the identical length of side of multiple shape is the pyramid shape of 5mm, is made up of UV photoresist.Experiment proves, insulating barrier 11 increases this kind of bulge-structure, can strengthen the concussion of lower frequency sounds, and the sound making original high pitch outstanding is softer, the sound expressive force of enhanced film loud speaker.
As shown in Figure 4, in the present embodiment, tone quality improving layer 3, vibration film 1, conductive film 2, conducting terminal 5, insulating barrier 11 are attached to together from down to up in order successively, glue together between different materials especially by the adhesive curing of UV epoxy resin.Conducting terminal 5 is attached on conductive film 2, and connects loudspeaker driving circuit.Because conductive film 2 is nano metal wire material film, so drive current is transferred to whole conductive film 2 by conducting terminal 5, and cause vibration film 1 vibration sounding, after sound passes through tone quality improving layer 3, the high-quality more of change.
Embodiment 2.
Fig. 6 is the STRUCTURE DECOMPOSITION figure of embodiment 2.Embodiment 2 comprises:
One sound-emitting membrane, the sound-emitting membrane in embodiment 2 is thin film structure, tone quality improving layer 3 and spaced apart the linking together of vibration film 1 one-tenth checkerboard grid shape, and structure composition is as the checkerboard of chess.。The oscillating region of such vibration film 1 still can reach the whole area of wafer speaker, but the materials'use amount of vibration film 1 reduces greatly, provides cost savings.And be spaced due to vibration film 1 and tone quality improving layer 3, tone quality improving layer 3 is that the material different with the material of vibration film 1 is made, difference is had with the vibration frequency of vibration film 1, vibration film 1 and tone quality improving layer 3 complement each other, and the sound that whole sound-emitting membrane is sent is more full simple and honest.In the present embodiment, tone quality improving layer 3 is made for resin.
One insulating barrier 11, the insulating barrier 11 in embodiment 2 comprises the tectate bulge-structure that multiple length of side is 100 μm, and roof-shaped is that side is placed, in roof shape triangular prism, and namely cross section is triangle, and there is the three-dimensional shape of two ramped shaped side.Experiment proves, this insulating barrier covers outside wafer speaker, can strengthen the concussion of lower frequency sounds, and the sound making original high pitch outstanding is softer, the sound expressive force of enhanced film loud speaker.
One conductive film 2, the conductive film 2 of the present embodiment is made for nanometer aluminum steel.
As shown in Figure 6, in the present embodiment, sound-emitting membrane, conductive film 2, conducting terminal 5, insulating barrier 11 are attached to together from down to up in order successively, glue together between different materials especially by the adhesive curing of UV epoxy resin.Conducting terminal 5 is attached on conductive film 2, and connects loudspeaker driving circuit.Because conductive film 2 is nano metal wire material film, so drive current is transferred to whole conductive film 2 by conducting terminal 5, and cause vibration film 1 vibration sounding, after sound passes through tone quality improving layer 3, the high-quality more of change.
Embodiment 3.
Fig. 7 is the STRUCTURE DECOMPOSITION figure of embodiment 3, and embodiment 3 comprises:
One sound-emitting membrane, sound-emitting membrane comprises the two-layer vibration film 1 possessing dipole moment charge distribution characteristics, and one deck tone quality improving layer 3, is clipped between two-layer vibration film 1.In the present embodiment, tone quality improving layer 3 is plastics.
Two-layer conductive film 2, is coated on two-layer vibration film 1 respectively.In the present embodiment, the film that conductive film 2 is made for nano metal wire material, in the present embodiment, is used NANO CRYSTAL COPPER WIRE as conductive film 2, is coated on vibration film 1 by spraying membrane formation process.
Multiple conducting terminal 5, on pasted conductive film 2, connects loudspeaker driving circuit;
Dielectric layers 11, be attached to outside two conductive films 2 respectively, and insulating barrier 11 comprises many group microfabrication structures in the present embodiment, often organize microfabrication structure and comprise three microfabrication structures, be followed successively by that diameter is that the solid dome of 80 μm is protruding respectively, bottom side length to be the protruding and diameter of the solid pyramid of 20 μm the be solid cylindrical protrusions of 50 μm.
Fig. 8 is the enlarged drawing of the microfabrication structure in embodiment 3 on insulating barrier local.Fig. 8 amplifies the 6 groups of microfabrication structures shown in insulating barrier 11, and whole insulating barrier 11 surface has all been paved with structure as shown in the figure.
Microfabrication structure also can be other types, one group of microfabrication structure can comprise a microfabrication structure, or the microfabrication structure that multiple shape is identical or different, as being pyramid, taper shape, prismatic, cylindrical, cheese, pyramid is specifically as follows pyramid, triangular pyramid etc., is prismaticly specifically as follows side is placed, triangular prism in roof shape; Also can be hollow bubble, or the combination of above-mentioned arbitrary shape different order, often organize in microfabrication structure, the size of each microfabrication structure can be different.
As shown in Figure 7, in the present embodiment, insulating barrier 11, conducting terminal 5, conductive film 2, vibration film 1, tone quality improving layer 3, vibration film 1, conductive film 2, conducting terminal 5, insulating barrier 11 are attached to together from down to up in order successively, especially by the method gummed adding hot pressing between different materials.Conducting terminal 5 is attached on conductive film 2, and connects loudspeaker driving circuit.Because conductive film 2 is metallic film, so drive current is transferred to whole conductive film 2 by conducting terminal 5, and cause vibration film 1 vibration sounding, sound is by after tone quality improving layer 3 and insulating barrier 11, and the high-quality more of change and soft, sounding effect is better.
To sum up, the present invention utilizes the feature of wafer speaker, and acoustics has been made into curve form, and the sound effect of wafer speaker in the present invention is better than wafer speaker of the prior art.
Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive without departing from the spirit and concept in the present invention or associate, all should think and be included within protection scope of the present invention.
Claims (10)
1. a curved surface acoustics, is characterized in that: the profile of described sound equipment is curved surface, and also comprise the wafer speaker be attached on sound equipment curved surface, described wafer speaker comprises:
At least one sound-emitting membrane, described sound-emitting membrane comprises and at least onely possesses the vibration film of dipole moment charge distribution characteristics and at least one tone quality improving layer;
At least one conductive film, is coated on described sound-emitting membrane; Described conductive film is that nano metal wire material is made;
At least one insulating barrier, is attached on conductive film;
At least two conducting terminals, are attached on described conductive film, connect loudspeaker driving circuit;
Described tone quality improving layer is that the material all different with the material of described vibration film and conductive film is made;
The profile of described sound equipment is cylindrical, spherical, oval, egg type, semi-cylindrical, hemisphere, half elliptic or half egg type.
2. curved surface acoustics as claimed in claim 1, is characterized in that: described tone quality improving layer and/or described surface of insulating layer comprise many group microfabrication structures; Often organize microfabrication structure and comprise a microfabrication structure or the identical or not identical microfabrication structure of multiple shape; The length of side that described microfabrication structure occupies is 20 μm ~ 10mm; Described microfabrication structure is hollow bubble, or solid pyramid, taper shape, prismatic, cylindrical, cheese or irregular shape are protruding.
3. curved surface acoustics as claimed in claim 2, is characterized in that: in described many group microfabrication structures, the length of side that often group microfabrication structure occupies is less than 10mm.
4. curved surface acoustics as claimed in claim 1, it is characterized in that: described sound-emitting membrane comprises double-layer films structure, described tone quality improving laminating is attached on described vibration film.
5. curved surface acoustics as claimed in claim 4, is characterized in that: the shape of described tone quality improving layer is sheet, thread, strip or netted.
6. curved surface acoustics as claimed in claim 1, is characterized in that: described sound-emitting membrane is thin film structure, and described tone quality improving layer becomes with vibration film that checkerboard grid shape is spaced apart to link together.
7. the curved surface acoustics as described in any one of claim 1 to 6, is characterized in that: described nano metal wire material is nano-silver thread, NANO CRYSTAL COPPER WIRE, nanometer iron wire or nanometer aluminum steel.
8. the curved surface acoustics as described in any one of claim 1 to 6, is characterized in that: described nano metal wire material is coated on described sound-emitting membrane by wet technological method for processing.
9. curved surface acoustics as claimed in claim 8, is characterized in that: described wet technological method for processing is spin-coating film method, spraying membrane formation process, silk screen print method, be printed as embrane method or scraper membrane formation process.
10. the curved surface acoustics as described in any one of claim 1 to 6, is characterized in that: described insulating barrier is that UV photoresist or plastics are made; The material of described tone quality improving layer is bubble chamber film, paper, nylon, plastics or resin.
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| CN201510733300.5A CN105307087A (en) | 2015-11-02 | 2015-11-02 | Curved-surface sound box device |
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| CN201510733300.5A CN105307087A (en) | 2015-11-02 | 2015-11-02 | Curved-surface sound box device |
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| CN105307087A true CN105307087A (en) | 2016-02-03 |
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| CN201510733300.5A Pending CN105307087A (en) | 2015-11-02 | 2015-11-02 | Curved-surface sound box device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108551634A (en) * | 2018-05-04 | 2018-09-18 | 珠海惠威科技有限公司 | A kind of coaxial ribbon speaker of Whole frequency band |
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Application publication date: 20160203 |