CN104683923A - Miniature loudspeaker diaphragm - Google Patents
Miniature loudspeaker diaphragm Download PDFInfo
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- CN104683923A CN104683923A CN201510116208.4A CN201510116208A CN104683923A CN 104683923 A CN104683923 A CN 104683923A CN 201510116208 A CN201510116208 A CN 201510116208A CN 104683923 A CN104683923 A CN 104683923A
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- 239000004696 Poly ether ether ketone Substances 0.000 claims abstract description 58
- 229920002530 polyetherether ketone Polymers 0.000 claims abstract description 58
- 239000002131 composite material Substances 0.000 claims abstract description 37
- 229920002313 fluoropolymer Polymers 0.000 claims abstract description 23
- 239000004811 fluoropolymer Substances 0.000 claims abstract description 23
- 239000010410 layer Substances 0.000 claims description 251
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 24
- 229920000728 polyester Polymers 0.000 claims description 23
- 239000012790 adhesive layer Substances 0.000 claims description 19
- 229910052731 fluorine Inorganic materials 0.000 claims description 17
- 239000011737 fluorine Substances 0.000 claims description 17
- 239000004697 Polyetherimide Substances 0.000 claims description 16
- 229920001601 polyetherimide Polymers 0.000 claims description 16
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 15
- 229920000642 polymer Polymers 0.000 claims description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000000741 silica gel Substances 0.000 claims description 9
- 229910002027 silica gel Inorganic materials 0.000 claims description 9
- -1 polytetrafluoroethylene, perfluoroethylene propylene Polymers 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000806 elastomer Substances 0.000 claims description 7
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 7
- 150000002148 esters Chemical class 0.000 claims description 6
- 239000002033 PVDF binder Substances 0.000 claims description 4
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 4
- 229920002620 polyvinyl fluoride Polymers 0.000 claims description 4
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 4
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- PEVRKKOYEFPFMN-UHFFFAOYSA-N 1,1,2,3,3,3-hexafluoroprop-1-ene;1,1,2,2-tetrafluoroethene Chemical compound FC(F)=C(F)F.FC(F)=C(F)C(F)(F)F PEVRKKOYEFPFMN-UHFFFAOYSA-N 0.000 claims description 2
- 125000001153 fluoro group Chemical group F* 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229920001230 polyarylate Polymers 0.000 description 10
- 239000003292 glue Substances 0.000 description 9
- 239000008187 granular material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- 229920001780 ECTFE Polymers 0.000 description 3
- 230000009477 glass transition Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 2
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CHJAYYWUZLWNSQ-UHFFFAOYSA-N 1-chloro-1,2,2-trifluoroethene;ethene Chemical group C=C.FC(F)=C(F)Cl CHJAYYWUZLWNSQ-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- QHSJIZLJUFMIFP-UHFFFAOYSA-N ethene;1,1,2,2-tetrafluoroethene Chemical group C=C.FC(F)=C(F)F QHSJIZLJUFMIFP-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention provides a miniature loudspeaker diaphragm. The miniature loudspeaker diaphragm comprises a first flaky layer, wherein the first flaky layer is a composite flaky layer comprising fluoropolymer and polyether-ether-ketone. The heat resistance, size stability, surface friction, tearing strength and puncture resistance of the miniature loudspeaker diaphragm can be improved, so that the comprehensive performance of the miniature loudspeaker diaphragm is more excellent.
Description
Technical Field
The invention relates to the technical field of loudspeaker diaphragms, in particular to a miniature loudspeaker diaphragm.
Background
PEEK (Poly Ether Ketone, polyetheretherketone) is a polymer material which has both rigidity and toughness, has good thermal properties, and has been widely used in the technical field of micro speakers. At present, the diaphragm of the micro-speaker is mostly made of a single-layer PEEK material or a composite material containing PEEK.
However, in the process of performing a reliability test on a conventional micro-speaker made of a single-layer PEEK material or a composite material containing PEEK, there are the following problems:
usually, the glass transition temperature of PEEK and its composite material is about 143 ℃, and when the heating temperature of the micro-speaker exceeds the glass transition temperature of PEEK and its composite material, PEEK and its composite material will soften and undergo irreversible deformation. However, in the process of testing the reliability of the micro-speaker, the PEEK and the composite material thereof composing the diaphragm may bear an actual temperature of up to 150 ℃, and since the PEEK and the composite material thereof cannot bear such a high temperature in a safe state, the diaphragm of the micro-speaker may be irreparably damaged, and the acoustic performance thereof may be seriously affected, for example, the phenomenon of sound and noise caused by the increase of the resonant frequency.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a micro speaker diaphragm, so as to solve the problem that the existing micro speaker diaphragm cannot resist high temperature.
The invention provides a micro loudspeaker diaphragm which comprises a first sheet layer, wherein the first sheet layer is a composite sheet layer of fluorine-containing polymer and polyether-ether-ketone.
In addition, it is preferable that the micro-speaker diaphragm further includes a second sheet layer bonded to the lower side of the first sheet layer, the second sheet layer being a thermoplastic elastomer layer.
In addition, the preferable structure is that the micro loudspeaker diaphragm further comprises a second sheet layer and a third sheet layer which are sequentially combined below the first sheet layer; wherein the second sheet layer is a thermoplastic elastomer layer, an acrylate adhesive layer or a silica gel adhesive layer; the third sheet layer is a composite sheet layer of fluoropolymer and polyether-ether-ketone, a polyether-ether-ketone layer, a polyether imide layer, a thermoplastic elastomer layer, a polyester layer or a polyaryl ester layer.
Furthermore, the preferable structure is that the micro loudspeaker diaphragm further comprises a second sheet layer, a third sheet layer and a fourth sheet layer which are sequentially combined below the first sheet layer; wherein, the second sheet layer and the third layer are both a thermoplastic elastomer layer, an acrylate glue layer or a silica gel glue layer; the fourth layer is a composite sheet layer of fluoropolymer and polyether-ether-ketone, a polyether-ether-ketone layer, a polyether imide layer, a thermoplastic elastomer layer, a polyester layer or a polyaryl ester layer.
In addition, the preferable structure is that the micro loudspeaker diaphragm further comprises a second sheet layer, a third sheet layer, a fourth sheet layer and a fifth sheet layer which are sequentially combined below the first sheet layer; wherein the second sheet layer and the fourth sheet layer are both a thermoplastic elastomer layer, an acrylate adhesive layer or a silica gel adhesive layer; the third sheet layer and the fifth sheet layer are both a composite sheet layer of fluoropolymer and polyether-ether-ketone, a polyether-ether-ketone layer, a polyetherimide layer, a thermoplastic elastomer layer, a polyester layer or a polyaryl ester layer.
In addition, the thermoplastic elastomer layer is preferably a polyurethane elastomer layer or a polyester elastomer layer.
Further, the preferred structure is such that the fluorine-containing polymer is a paraffin polymer in which some or all of the hydrogen is substituted with fluorine.
Further, the fluorine-containing polymer is preferably polytetrafluoroethylene, a perfluoroethylene propylene copolymer, polyperfluoroalkoxy resin, polychlorotrifluoroethylene, an ethylene-chlorotrifluoroethylene copolymer, an ethylene-tetrafluoroethylene copolymer, polyvinylidene fluoride, or polyvinyl fluoride.
Further, a preferable structure is that the fluoropolymer is 0.5% to 30% by mass in the first sheet layer.
Furthermore, it is preferable that the entire thickness of the micro-speaker diaphragm is 2 μm to 50 μm.
Compared with the prior micro loudspeaker diaphragm, the invention has the beneficial effects that:
1. a part of sheet layers of the micro loudspeaker diaphragm provided by the invention adopt a composite sheet layer of fluorine-containing polymer and polyether-ether-ketone, and the fluorine-containing polymer in the composite sheet layer can improve the heat resistance, the dimensional stability, the surface friction performance, the tear strength and the puncture resistance of the polyether-ether-ketone.
2. When the diaphragm is made of multiple layers of materials, the damping layer is used as the middle layer, so that the lower resonance frequency of the micro-speaker can be kept, and the acoustic performance of the micro-speaker is improved.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described and particularly pointed out in the claims. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Further, the present invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description and appended claims, taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a schematic structural diagram of a diaphragm of a micro-speaker according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a diaphragm of a micro-speaker according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a diaphragm of a micro-speaker according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a diaphragm of a micro-speaker according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a diaphragm of a micro speaker according to a fifth embodiment of the present invention.
Wherein the reference numerals include: the first sheet layer 1, the second sheet layer 2, the third sheet layer 3, the fourth sheet layer 4 and the fifth sheet layer 5.
The same reference numbers in all figures indicate similar or corresponding features or functions.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example one
Fig. 1 shows a structure of a micro-speaker diaphragm according to a first embodiment of the present invention.
As shown in fig. 1, the micro speaker diaphragm provided in this embodiment is formed by a single-layer sheet, that is, the first sheet 1 shown in fig. 1, where the first sheet 1 is a composite sheet of a fluoropolymer and polyether ether Ketone (PEEK). The vibrating diaphragm in the prior art only comprises a PEEK sheet layer, the heat resistance of the PEEK sheet layer is improved by mixing fluorine-containing polymer into the PEEK sheet layer, the PEEK sheet layer cannot be softened after the temperature of the PEEK sheet layer reaches or is higher than the glass transition Temperature (TG) of the PEEK sheet layer, irreversible deformation cannot occur, and the vibrating diaphragm of the micro loudspeaker is of a single-layer structure, can reduce the rigidity of the vibrating diaphragm and is easy to machine and form.
The fluoropolymer mentioned in this example is a paraffin polymer in which some or all of the hydrogens are replaced by fluorine, for example: polytetrafluoroethylene (PTFE), perfluoro (ethylene propylene) (FEP) copolymer, Polyperfluoroalkoxy (PFA) resin, Polychlorotrifluoroethylene (PCTFF), ethylene chlorotrifluoroethylene copolymer (ECTFE), Ethylene Tetrafluoroethylene (ETFE) copolymer, polyvinylidene fluoride (PVDF), polyvinyl fluoride (PVF), and the like.
Mixing any one of the fluoropolymers with PEEK to form a composite sheet layer of the fluoropolymers and the PEEK, wherein the mass percentage of the fluoropolymers in the composite sheet layer is 0.5% -30%.
It should be noted that the fluorine content in the fluoropolymer is not critical, but the higher the fluorine content is, the better the heat resistance and the dimensional stability at high temperature of the micro-speaker diaphragm are.
The flow of making the composite sheet of fluoropolymer and PEEK is as follows:
firstly, accurately weighing PEEK granules and fluorine-containing polymer granules of all components according to the mass percentage required by the granules, putting the two granules into a high-speed mixer for mixing, adding the two granules into an extruder for blending and extruding after the two granules are uniformly mixed, cutting the granules after the extrusion to form cylindrical granule monomers, and finally preparing the cylindrical granule monomers into a composite sheet layer of the fluorine-containing polymer and the PEEK by adopting a casting technology after melting.
The above flow describes in detail the process of producing a composite sheet layer of fluoropolymer and PEEK, and in the following examples two to five, the same flow can be used to produce a composite sheet layer of fluoropolymer and PEEK, but the present invention is not limited to this production flow.
Example two
Fig. 2 shows a structure of a micro-speaker diaphragm according to a second embodiment of the present invention.
As shown in fig. 2, the micro speaker diaphragm provided in the second embodiment has a dual-layer structure, the first layer 1 is located above the second layer 2, the first layer 1 is the composite layer described in the first embodiment, and the second layer 2 is a thermoplastic elastomer layer such as polyurethane elastomer (TPU) or polyester elastomer (TPEE), which can increase the elasticity of the micro speaker diaphragm and reduce the possibility that the micro speaker diaphragm is damaged in the vibration process compared with the micro speaker diaphragm provided in the first embodiment.
It is noted that the bonding of the composite sheet layer to the thermoplastic elastomer layer requires a hot pressing process.
EXAMPLE III
Fig. 3 shows a structure of a micro-speaker diaphragm according to a third embodiment of the present invention.
As shown in fig. 3, the micro-speaker diaphragm provided in this embodiment three has a three-layer structure, where a first layer is located on the top layer, a second layer is located on the middle layer, and a third layer is located on the bottom layer, in other words, the first layer and the third layer belong to the outer layers, and the second layer belongs to the middle layer, both of the outer layers may be the composite layer described in the embodiment one, or one of the two outer layers may be the composite layer described in the embodiment one, and the other layer is a polyether ether ketone (PEEK) layer, a polyether imide (PEI) layer, a thermoplastic elastomer layer (for example, a polyurethane elastomer TPU or a polyester elastomer TPEE), a Polyester (PET) layer, or a Polyarylate (PAR) layer.
The second sheet layer belonging to the middle layer is usually arranged to be an acrylic glue layer or a silica gel glue layer and other glue layers, the two outer layers can be bonded together by taking the glue layers as the middle layer to play a role in connection, but the middle layer can also be arranged to be a thermoplastic elastomer layer, and the three sheet layers are combined together through a hot pressing process.
Compared with the second embodiment, the third embodiment has one more intermediate layer, and the adhesive layer is usually used as the intermediate layer, and because the adhesive layer has good damping property, the adhesive layer is used as the intermediate layer, so that the resonant frequency of the micro-speaker diaphragm can be reduced, and the acoustic performance of the micro-speaker can be improved.
Embodiment three the three-layer structure of the micro-speaker diaphragm described is also a conventional choice in the art, and therefore embodiment three is taken as the preferred embodiment of the present invention.
Example four
Fig. 4 shows a structure of a micro-speaker diaphragm according to a fourth embodiment of the present invention.
As shown in fig. 4, the micro-speaker diaphragm provided by the four-way joint of this embodiment has a four-layer structure, the first layer and the fourth layer are outer layers, and the second layer and the third layer are inner layers, wherein both the first layer and the fourth layer can be configured as the composite layer described in the first embodiment, or one of the first layer and the fourth layer can be configured as the composite layer described in the first embodiment, and the other layer can be configured as a polyether ether ketone (PEEK) layer, a Polyetherimide (PEI) layer, a thermoplastic elastomer layer (for example, a polyurethane elastomer TPU or a polyester elastomer TPEE), a Polyester (PET) layer, or a Polyarylate (PAR) layer, and the like, and the outer layer is configured as the composite layer, so that the micro-speaker diaphragm has good dimensional stability; the second sheet layer and the third sheet layer are sheet layers with the same structure, specifically, both of the sheet layers are any one of a composite sheet layer of fluoropolymer and PEEK, a thermoplastic elastomer layer (for example, a polyurethane elastomer TPU or a polyester elastomer TPEE), an acrylate adhesive layer or a silica gel adhesive layer, and preferably, the second sheet layer and the third sheet layer are configured as the acrylate adhesive layer or the silica gel adhesive layer.
Compared with the three phases of the embodiment, the four-phase vibration damping structure has the advantages that the glue layer is additionally arranged, the damping performance of the micro loudspeaker diaphragm can be further improved through the glue layer, namely, the resonance frequency of the micro loudspeaker is further reduced, the acoustic performance of the micro loudspeaker is improved, meanwhile, the elasticity of the micro loudspeaker diaphragm can also be increased, and the micro loudspeaker diaphragm is less prone to being broken in a vibration process.
EXAMPLE five
Fig. 5 shows a structure of a micro-speaker diaphragm according to a fifth embodiment of the present invention.
As shown in fig. 5, the micro speaker diaphragm provided in the fifth embodiment includes five laminated sheet layers, which are a first sheet layer, a second sheet layer, a third sheet layer, a fourth sheet layer and a fifth sheet layer, respectively; the first sheet layer and the fifth sheet layer are outer layers, and the second sheet layer to the fourth sheet layer are inner layers.
In the fifth embodiment, any one of the five sheets may be configured as a composite sheet of fluoropolymer and PEEK, and preferably, the composite sheet of fluoropolymer and PEEK is configured as an outer layer, which is more favorable for maintaining the dimensional stability of the micro-speaker diaphragm at high temperature. Specifically, the first sheet layer and the fifth sheet layer may all be provided as a composite sheet layer of a fluoropolymer and PEEK, and one of the two sheet layers may be provided as a composite sheet layer of a fluoropolymer and PEEK, and the other may be provided as a layer structure of a Polyetheretherketone (PEEK) layer, a Polyetherimide (PEI) layer, a thermoplastic elastomer layer, a Polyester (PET) layer, or a Polyarylate (PAR) layer.
The second through fourth plies may be provided as a thermoplastic elastomer layer (e.g., a polyurethane elastomer TPU or a polyester elastomer TPEE), a subbing layer, or a film layer; the film layer comprises a polyether ether ketone (PEEK) layer, a Polyetherimide (PEI) layer, a Polyester (PET) layer or a Polyarylate (PAR) layer and the like.
In a preferred embodiment, the second sheet layer and the fourth sheet layer are formed in a structure of any one of an acrylate-based adhesive layer, a silicone-based adhesive layer, and the third sheet layer is formed in a structure of any one of a polyether ether ketone (PEEK) layer, a polyether imide (PEI) layer, a Polyester (PET) layer, and a Polyarylate (PAR) layer. The arrangement mode is that the glue layers are arranged between the film layers at intervals, so that the five sheet layers are easy to bond together.
The above-mentioned first to fifth embodiments describe the structure of five micro-speaker diaphragms in detail, but the present invention is not limited to five layers, and may be further stacked upwards, for example, six layers, seven layers, etc., until the overall thickness of the micro-speaker diaphragm is 50 μm, that is, the overall thickness of the micro-speaker diaphragm provided by the present invention ranges from 2 μm to 50 μm.
In summary, the micro loudspeaker diaphragm provided by the invention can improve the heat resistance, dimensional stability, surface friction, tear strength and puncture resistance of the micro loudspeaker diaphragm by adding the fluoropolymer sheet layer in the micro loudspeaker diaphragm, so that the comprehensive performance of the micro loudspeaker diaphragm is more excellent.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The micro loudspeaker diaphragm is characterized by comprising a first sheet layer, wherein the first sheet layer is a composite sheet layer of fluorine-containing polymer and polyether-ether-ketone.
2. The micro-speaker diaphragm of claim 1 where,
further comprising a second sheet layer bonded below the first sheet layer, the second sheet layer being a thermoplastic elastomer layer.
3. The micro-speaker diaphragm of claim 1 where,
the second sheet layer and the third sheet layer are sequentially combined below the first sheet layer; wherein,
the second sheet layer is a thermoplastic elastomer layer, an acrylate adhesive layer or a silica gel adhesive layer;
the third sheet layer is a composite sheet layer of fluoropolymer and polyether-ether-ketone, a polyether-ether-ketone layer, a polyetherimide layer, a thermoplastic elastomer layer, a polyester layer or a polyaryl ester layer.
4. The micro-speaker diaphragm of claim 1 where,
the second sheet layer, the third sheet layer and the fourth sheet layer are sequentially combined below the first sheet layer; wherein,
the second sheet layer and the third layer are both a thermoplastic elastomer layer, an acrylate adhesive layer or a silica gel adhesive layer;
the fourth layer is a composite sheet layer of fluoropolymer and polyether-ether-ketone, a polyether-ether-ketone layer, a polyetherimide layer, a thermoplastic elastomer layer, a polyester layer or a polyaryl ester layer.
5. The micro-speaker diaphragm of claim 1 where,
the second sheet layer, the third sheet layer, the fourth sheet layer and the fifth sheet layer are sequentially combined below the first sheet layer; wherein,
the second sheet layer and the fourth sheet layer are both a thermoplastic elastomer layer, an acrylate adhesive layer or a silica gel adhesive layer;
the third sheet layer and the fifth sheet layer are both a composite sheet layer of fluoropolymer and polyether-ether-ketone, a polyether-ether-ketone layer, a polyetherimide layer, a thermoplastic elastomer layer, a polyester layer or a polyaryl ester layer.
6. The micro-speaker diaphragm of any one of claims 2-5 where,
the thermoplastic elastomer layer is a polyurethane elastomer layer or a polyester elastomer layer.
7. The micro-speaker diaphragm of any one of claims 1-5 where,
the fluorine-containing polymer is a paraffin polymer in which some or all of the hydrogen is substituted with fluorine.
8. The micro-speaker diaphragm of claim 7 where,
the fluorine-containing polymer is polytetrafluoroethylene, perfluoroethylene propylene copolymer, polyperfluoroalkoxy resin, polychlorotrifluoroethylene, ethylene-chlorotrifluoroethylene copolymer, ethylene-tetrafluoroethylene copolymer, polyvinylidene fluoride or polyvinyl fluoride.
9. The micro-speaker diaphragm of any one of claims 1-5 where,
the mass percentage of the fluorine-containing polymer in the first sheet layer is 0.5-30%.
10. The micro-speaker diaphragm of any one of claims 1-5 where,
the whole thickness of the miniature loudspeaker diaphragm is 2-50 μm.
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| CN201510116208.4A CN104683923A (en) | 2015-03-17 | 2015-03-17 | Miniature loudspeaker diaphragm |
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| CN201510116208.4A CN104683923A (en) | 2015-03-17 | 2015-03-17 | Miniature loudspeaker diaphragm |
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Cited By (11)
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| CN105188000A (en) * | 2015-09-18 | 2015-12-23 | 歌尔声学股份有限公司 | Loudspeaker diaphragm |
| CN105430579A (en) * | 2016-01-01 | 2016-03-23 | 苏州井利电子股份有限公司 | Water-resistant paper cone for loudspeaker |
| CN105554642A (en) * | 2016-01-01 | 2016-05-04 | 苏州井利电子股份有限公司 | Long-life waterproof cone for loudspeaker |
| CN106162454A (en) * | 2016-08-31 | 2016-11-23 | 歌尔股份有限公司 | The diaphragm of loudspeaker, loudspeaker monomer and electronic equipment |
| CN108574924A (en) * | 2018-05-03 | 2018-09-25 | 深圳市摩码克来沃化学科技有限公司 | A kind of composite diaphragm, the preparation method of composite diaphragm and the acoustical generator equipped with the composite diaphragm |
| CN109618269A (en) * | 2019-02-12 | 2019-04-12 | 共达电声股份有限公司 | A kind of vibrating diaphragm and the electro-acoustic element using the vibrating diaphragm |
| CN110267167A (en) * | 2019-06-14 | 2019-09-20 | 歌尔股份有限公司 | A kind of vibrating diaphragm and sounding device of sounding device |
| CN110691306A (en) * | 2019-09-29 | 2020-01-14 | 歌尔科技有限公司 | A conducting film and sound generating mechanism for sound generating mechanism |
| WO2020216195A1 (en) * | 2019-04-24 | 2020-10-29 | 歌尔股份有限公司 | Vibration diaphragm for miniature sound production device and miniature sound production device |
| WO2020216196A1 (en) * | 2019-04-24 | 2020-10-29 | 歌尔股份有限公司 | Vibrating diaphragm for miniature sound producing device and miniature sound producing device |
| US20220279279A1 (en) * | 2019-08-19 | 2022-09-01 | Goertek Inc. | Conductive film for sound producing apparatus and sound producing apparatus |
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| CN105430579A (en) * | 2016-01-01 | 2016-03-23 | 苏州井利电子股份有限公司 | Water-resistant paper cone for loudspeaker |
| CN105554642A (en) * | 2016-01-01 | 2016-05-04 | 苏州井利电子股份有限公司 | Long-life waterproof cone for loudspeaker |
| CN106162454A (en) * | 2016-08-31 | 2016-11-23 | 歌尔股份有限公司 | The diaphragm of loudspeaker, loudspeaker monomer and electronic equipment |
| CN108574924A (en) * | 2018-05-03 | 2018-09-25 | 深圳市摩码克来沃化学科技有限公司 | A kind of composite diaphragm, the preparation method of composite diaphragm and the acoustical generator equipped with the composite diaphragm |
| CN108574924B (en) * | 2018-05-03 | 2021-04-20 | 深圳市摩码克来沃化学科技有限公司 | Composite vibrating diaphragm, preparation method of composite vibrating diaphragm and acoustic generator with composite vibrating diaphragm |
| CN109618269A (en) * | 2019-02-12 | 2019-04-12 | 共达电声股份有限公司 | A kind of vibrating diaphragm and the electro-acoustic element using the vibrating diaphragm |
| WO2020216195A1 (en) * | 2019-04-24 | 2020-10-29 | 歌尔股份有限公司 | Vibration diaphragm for miniature sound production device and miniature sound production device |
| WO2020216196A1 (en) * | 2019-04-24 | 2020-10-29 | 歌尔股份有限公司 | Vibrating diaphragm for miniature sound producing device and miniature sound producing device |
| CN110267167A (en) * | 2019-06-14 | 2019-09-20 | 歌尔股份有限公司 | A kind of vibrating diaphragm and sounding device of sounding device |
| US20220279279A1 (en) * | 2019-08-19 | 2022-09-01 | Goertek Inc. | Conductive film for sound producing apparatus and sound producing apparatus |
| US12219337B2 (en) * | 2019-08-19 | 2025-02-04 | Goertek Inc. | Conductive film for sound producing apparatus and sound producing apparatus |
| CN110691306A (en) * | 2019-09-29 | 2020-01-14 | 歌尔科技有限公司 | A conducting film and sound generating mechanism for sound generating mechanism |
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