CN106792377A - Vibrating diaphragm and microphone device - Google Patents
Vibrating diaphragm and microphone device Download PDFInfo
- Publication number
- CN106792377A CN106792377A CN201710062525.1A CN201710062525A CN106792377A CN 106792377 A CN106792377 A CN 106792377A CN 201710062525 A CN201710062525 A CN 201710062525A CN 106792377 A CN106792377 A CN 106792377A
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- Prior art keywords
- layer
- vibrating diaphragm
- resin base
- base material
- glue
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Classifications
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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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The invention provides a kind of vibrating diaphragm, including the ring portion that top dome portion and the circular top dome portion stretch out, the ring portion at least includes ground floor, and the ground floor is TPV layer.Present invention simultaneously provides a kind of microphone device, the microphone device includes the vibrating diaphragm.Compared with correlation technique, vibrating diaphragm of the invention and microphone device is highly reliable and acoustical behavior is good.
Description
【Technical field】
The present invention relates to acoustic-electric field, more particularly to a kind of vibrating diaphragm and microphone device for applying to portable type electronic product.
【Background technology】
With the arrival in mobile Internet epoch, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices
Among, undoubtedly most common, the most portable mobile terminal device of mobile phone.At present, the function of mobile phone is extremely various, and one of them is just
It is the music function of high-quality, therefore, the microphone device for playing sound is widely applied Intelligent mobile equipment till now
Among.
Microphone device in correlation technique includes frame, is fixed on the vibrational system of the frame, the vibrational system bag
Include vibrating diaphragm and drive the voice coil loudspeaker voice coil of the diaphragm oscillations.TPUE (TPU) and thermoplastic polyester elastomer
(TPEE) the unique soft and hard segments block structure of material assigns its many excellent performance, such as good elastic, pliable and damping and amortization
Can etc., thus it is widely used in making the material of the vibrating diaphragm.
However, because TPUE and thermoplastic polyester elastomeric material belong to esters macromolecule,
Its molecular chain structure determines that they are easily hydrolyzed under hygrothermal environment, and material is higher to the sensitiveness of environment, therefore, when being made
After the vibrating diaphragm, the vibrating diaphragm is susceptible to deformation under hot humid environment during long-term work, so as to reduce the sounding
The service life of device.
Therefore, have in fact and must provide for a kind of new vibrating diaphragm and microphone device solution above-mentioned technical problem.
【The content of the invention】
It is an object of the invention to provide a kind of highly reliable and acoustical behavior good vibrating diaphragm and microphone device.
In order to achieve the above object, the invention provides a kind of vibrating diaphragm, including top dome portion and around the top dome portion it is outside
The ring portion of extension, the ring portion at least includes ground floor, and the ground floor is TPV layer.
Preferably, the ring portion includes folding successively the ground floor and the second layer for setting, respectively described thermoplastic vulcanizates rubber
Glue-line and the resin base material bed of material.
Preferably, the ring portion includes folding successively ground floor, the second layer and the third layer for setting, respectively resin-based materials
Layer, TPV layer and the resin base material bed of material；Or, respectively described TPV layer, glue-line and tree
Fat-based materials layer.
Preferably, the ring portion includes the folded ground floor for setting, the second layer, third layer and the 4th layer successively, respectively sets
Fat-based materials layer, glue-line, TPV layer and the resin base material bed of material；Or, respectively described thermoplastic vulcanizates rubber
Glue-line, the resin base material bed of material, glue-line and the resin base material bed of material.
Preferably, the ring portion includes folding successively ground floor, the second layer, third layer, the 4th layer and the layer 5 for setting, point
Wei not the resin base material bed of material, TPV layer, glue-line, TPV layer and resin-based materials
Layer；Or, respectively described TPV layer, the resin base material bed of material, glue-line, the resin base material bed of material and the thermoplasticity sulphur
Change rubber layer；Or, respectively the resin base material bed of material, glue-line, TPV layer, glue-line and the resin base material bed of material.
Preferably, the glue-line is SGA or silica gel.
Preferably, the resin base material bed of material includes that polyether-ether-ketone, PEI, polyether-ketone, polyether sulfone, polyamides are sub-
At least one in amine, polyphenylene sulfide, PEN and polyethylene terephthalate.
Preferably, the TPV layer is that resin phase and rubber are formed through dynamic vulcanization process；The tree
Lipid phase includes polypropylene, polyethylene, polystyrene, polyamide, polyvinyl chloride and polyurethane, and the rubber mutually includes EPDM
Rubber, butyl rubber, nitrile rubber, ACM, ethylene-acrylate rubber, silicon rubber and fluorubber.
Preferably, the thickness of the vibrating diaphragm is 10 μm~100 μm.
Present invention simultaneously provides a kind of microphone device, the microphone device includes the vibrating diaphragm that the present invention is provided.
Compared with correlation technique, vibrating diaphragm of the invention does the ring portion using the thermoplastic vulcanizate material
Main material so that the vibrating diaphragm has humidity resistance and relatively low environmental sensitivity higher, is more easy to adjust the performance of material
Index, improves the reliability and acoustical behavior of the vibrating diaphragm and the microphone device with the vibrating diaphragm.
【Brief description of the drawings】
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing, wherein：
Fig. 1 is the structural representation of vibrating diaphragm of the present invention；
Fig. 2 is the structural representation of embodiment one in the ring portion of vibrating diaphragm of the present invention；
Fig. 3 is the structural representation of embodiment two in the ring portion of vibrating diaphragm of the present invention；
Fig. 4 is the structural representation of embodiment three in the ring portion of vibrating diaphragm of the present invention；
Fig. 5 is the example IV structural representation in the ring portion of vibrating diaphragm of the present invention；
Fig. 6 is the structural representation of embodiment five in the ring portion of vibrating diaphragm of the present invention；
【Specific embodiment】
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment one
Fig. 1-2 is referred to, wherein, Fig. 1 is the structural representation of vibrating diaphragm of the present invention；Fig. 2 is the ring portion of vibrating diaphragm of the present invention
The structural representation of embodiment one.The invention provides a kind of vibrating diaphragm 10, including top dome portion 1 and outside around the top dome portion 1
The ring portion 12 of extension, the ring portion 12 at least includes ground floor 121, i.e., described ring portion 12 is single layer structure, described the
One layer 121 is TPV (TPV) layer, and as TPV (TPV) material is made.In present embodiment,
The thickness of the vibrating diaphragm 10 is 10 μm~100 μm.
The TPV layer is that resin phase and rubber are formed through dynamic vulcanization process；The resin mutually includes
Polypropylene (PP), polyethylene (PE), polystyrene (PS), polyamide (PA), polyvinyl chloride (PVC), polyurethane (PU)；The rubber
Glue mutually includes ethylene propylene diene rubber (EPDM), butyl rubber (IIR), nitrile rubber (NBR), ACM (ACM), second
Alkene-ACM (AEM), silicon rubber, fluorubber.Certainly, the resin phase is mutually not limited to this with the rubber.
The TPV layer has the high-elastic and damping characteristic of the rubber phase at ambient temperature, works as temperature
After being increased to uniform temperature, again can be with thermoplastic shaping.More preferably, the sensitiveness to environment is relatively low, further carries for its wet-hot aging performance
The reliability of the vibrating diaphragm high.
The Making programme of the thermoplastic vulcanizate material is as follows：
According to required a certain amount of rubber raw rubber of mass percent precise and resin granular material, the two is placed in
It is well mixed at high temperature in the blender of certain rotating speed；Corresponding vulcanization balanced constant is added simultaneously, promotes rubber to occur dynamic
State sulfidation；After well mixed, add carries out extruding pelletization into extruder, and finally the pellet of TPV exists
Enter hot-forming under high temperature.
Embodiment two
Fig. 3 is referred to, is the structural representation of embodiment two in the ring portion of vibrating diaphragm of the present invention.Present embodiment and above-mentioned reality
Apply example two essentially identical, unlike, the ring portion 22 includes folding successively from the top down the ground floor 221 and the second layer for setting
222, respectively described TPV (TPV) layer and the resin base material bed of material.
The resin base material bed of material includes but is not limited to polyether-ether-ketone (PEEK), PEI (PEI), polyether-ketone
(PEK), polyether sulfone (PES), polyimides (PI), polyphenylene sulfide (PPS), PEN (PEN), poly- to benzene two
At least one in formic acid glycol ester (PET).
The single layer structure ring portion of the offer of embodiment one is compared to, double-decker ring portion can improve the vibrating diaphragm
Integral rigidity, while the probability that vibrating diaphragm is destroyed in vibration processes can be reduced.
In present embodiment, by hot press forming technology by the thermoplastic vulcanizate material layer and the resin base material
The bed of material is combined with each other.
Embodiment three
Fig. 4 is referred to, is the structural representation of embodiment three in the ring portion of vibrating diaphragm of the present invention.Present embodiment and above-mentioned reality
Apply example one or two essentially identical, unlike, the ring portion 33 includes folding successively from the top down the ground floor 331, second for setting
Layer 332 and third layer 333.
The ground floor 331, the second layer 332 and third layer 333 are respectively the resin base material bed of material, the thermoplastic vulcanizates rubber
Glue-line and the resin base material bed of material；
Or, the ground floor 331, the second layer 332 and third layer 333 are respectively the TPV layer, glue
Layer and the resin base material bed of material.
In present embodiment, the glue-line is not limited to SGA or silica gel including working as.The glue-line is used as intermediate wood
The bed of material, can play connection function, and make the conjugation that trilaminate material layer is combined together stronger by heat pressing process.
Compared with embodiment two, glue-line is additionally arranged in present embodiment, glue-line has good damping characteristic, can be effective
Distortion and the resonant frequency of vibrating diaphragm 10 are reduced, so as to improve the acoustical behavior with the microphone device of the vibrating diaphragm 10.
Example IV
Fig. 5 is referred to, is the example IV structural representation in the ring portion of vibrating diaphragm of the present invention.Present embodiment and above-mentioned reality
Apply example three essentially identical, unlike：The ring portion 44 includes folding successively from top to bottom the ground floor 441, second layer for setting
442nd, third layer 443 and the 4th layer 444.
The ground floor 441, the second layer 442, third layer 443 and the 4th layer 444 be respectively the resin base material bed of material, glue-line,
The TPV layer and the resin base material bed of material.
Or, the ground floor 441, the second layer 442, third layer 443 and the 4th layer 444 are respectively the thermoplastic vulcanizates
Rubber layer, the resin base material bed of material, glue-line and the resin base material bed of material.
Embodiment five
Fig. 6 is referred to, is the structural representation of embodiment five in the ring portion of vibrating diaphragm of the present invention.Present embodiment and above-mentioned reality
Apply example four essentially identical, unlike：The ring portion 55 includes folding successively ground floor 551, the second layer 552, third layer for setting
553rd, the 4th layer 554 and layer 5 555.
The ground floor 551, the second layer 552, third layer 553, the 4th layer 554 and layer 5 555 are respectively resin base material
The bed of material, TPV layer, glue-line, TPV layer and the resin base material bed of material；
Or, the ground floor 551, the second layer 552, third layer 553, the 4th layer 554 and layer 5 555 are respectively described
TPV layer, the resin base material bed of material, glue-line, the resin base material bed of material and TPV layer；
Or, the ground floor 551, the second layer 552, third layer 553, the 4th layer 554 and layer 5 555 are respectively resin
Based material layer, glue-line, TPV layer, glue-line and the resin base material bed of material.
The structure of vibrating diaphragm of the invention 10 can be more Rotating fields, not limit the description of above-described embodiment, it is only necessary to vibrating diaphragm
10 thickness control is in 10~100 μ ms.
Present invention simultaneously provides a kind of microphone device (not shown), the microphone device includes that the described of present invention offer shakes
Film 10.The good stability of the microphone device, acoustical behavior is excellent.
Compared with correlation technique, vibrating diaphragm of the invention does the ring portion using the thermoplastic vulcanizate material
Main material so that the vibrating diaphragm has humidity resistance and relatively low environmental sensitivity higher, is more easy to adjust the performance of material
Index, improves the reliability and acoustical behavior of the vibrating diaphragm and the microphone device with the vibrating diaphragm.
Above-described is only embodiments of the present invention, it should be noted here that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, improvement can also be made, but these belong to protection model of the invention
Enclose.
Claims (10)
1. a kind of vibrating diaphragm, including top dome portion and the ring portion stretched out around the top dome portion, it is characterised in that the ring
Portion at least includes ground floor, and the ground floor is TPV layer.
2. vibrating diaphragm according to claim 1, it is characterised in that the ring portion includes folding successively the ground floor and second for setting
Layer, respectively described TPV layer and the resin base material bed of material.
3. vibrating diaphragm according to claim 1, it is characterised in that the ring portion includes folding successively ground floor, second for setting
Layer and third layer, respectively the resin base material bed of material, TPV layer and the resin base material bed of material；Or, respectively institute
State TPV layer, glue-line and the resin base material bed of material.
4. vibrating diaphragm according to claim 1, it is characterised in that the ring portion includes folding successively ground floor, second for setting
Layer, third layer and the 4th layer, respectively the resin base material bed of material, glue-line, TPV layer and the resin base material bed of material；
Or, respectively described TPV layer, the resin base material bed of material, glue-line and the resin base material bed of material.
5. vibrating diaphragm according to claim 1, it is characterised in that the ring portion includes folding successively ground floor, second for setting
Layer, third layer, the 4th layer and layer 5, respectively the resin base material bed of material, TPV layer, glue-line, the heat
Plasticity vulcanised rubber layer and the resin base material bed of material；Or, respectively described TPV layer, the resin base material bed of material, glue-line,
The resin base material bed of material and TPV layer；Or, respectively the resin base material bed of material, glue-line, the thermoplastic vulcanizates
Rubber layer, glue-line and the resin base material bed of material.
6. the vibrating diaphragm according to claim 3-5 any one, it is characterised in that the glue-line is SGA or silicon
Glue.
7. the vibrating diaphragm according to claim 2-5 any one, it is characterised in that the resin base material bed of material includes polyethers ether
Ketone, PEI, polyether-ketone, polyether sulfone, polyimides, polyphenylene sulfide, PEN and poly- terephthaldehyde
At least one in sour glycol ester.
8. the vibrating diaphragm according to claim 1-5 any one, it is characterised in that the TPV layer is resin
Mutually formed through dynamic vulcanization process with rubber；The resin mutually includes polypropylene, polyethylene, polystyrene, polyamide, polychlorostyrene
Ethene and polyurethane, the rubber mutually include ethylene propylene diene rubber, butyl rubber, nitrile rubber, ACM, ethene-
ACM, silicon rubber and fluorubber.
9. the vibrating diaphragm according to claim 1-5 any one, it is characterised in that the thickness of the vibrating diaphragm is 10 μm~100 μ
m。
10. a kind of microphone device, it is characterised in that including the vibrating diaphragm as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710062525.1A CN106792377A (en) | 2017-01-23 | 2017-01-23 | Vibrating diaphragm and microphone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710062525.1A CN106792377A (en) | 2017-01-23 | 2017-01-23 | Vibrating diaphragm and microphone device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106792377A true CN106792377A (en) | 2017-05-31 |
Family
ID=58956146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710062525.1A Withdrawn CN106792377A (en) | 2017-01-23 | 2017-01-23 | Vibrating diaphragm and microphone device |
Country Status (1)
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| CN (1) | CN106792377A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538838A (en) * | 2017-08-17 | 2018-01-05 | 歌尔股份有限公司 | Composite diaphragm for sound-producing device and preparation method thereof |
| CN108769887A (en) * | 2018-05-03 | 2018-11-06 | 深圳市摩码克来沃化学科技有限公司 | A kind of novel vibrating diaphragm, the preparation method of vibrating diaphragm and the acoustical generator equipped with the vibrating diaphragm |
| CN109218924A (en) * | 2018-08-20 | 2019-01-15 | 歌尔股份有限公司 | Vibrating diaphragm, sounding device and its assemble method for sounding device |
| 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 |
| CN109905815A (en) * | 2019-03-26 | 2019-06-18 | 瑞声科技(新加坡)有限公司 | Shaking membrane substrate and preparation method thereof, vibrating diaphragm and loudspeaker |
| CN110012394A (en) * | 2019-03-26 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | Shaking membrane substrate and preparation method thereof, vibrating diaphragm and loudspeaker |
| CN110012393A (en) * | 2019-03-26 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | Shaking membrane substrate and preparation method thereof, vibrating diaphragm and loudspeaker |
| CN110283389A (en) * | 2019-06-14 | 2019-09-27 | 歌尔股份有限公司 | A kind of vibrating diaphragm and sounding device of sounding device |
| WO2019237604A1 (en) * | 2018-06-15 | 2019-12-19 | 歌尔股份有限公司 | Speaker diaphragm and speaker |
| CN110708638A (en) * | 2019-10-31 | 2020-01-17 | 歌尔股份有限公司 | Vibrating diaphragm for miniature sound generating device and miniature sound generating device |
| CN110784806A (en) * | 2019-10-31 | 2020-02-11 | 歌尔股份有限公司 | Vibrating diaphragm for miniature sound generating device and miniature sound generating device |
| CN110951172A (en) * | 2019-10-31 | 2020-04-03 | 歌尔股份有限公司 | Sound generating device's vibrating diaphragm and sound generating device |
| WO2020216168A1 (en) * | 2019-04-24 | 2020-10-29 | 歌尔股份有限公司 | Diaphragm for miniature sound production device, and miniature sound production device |
| WO2020216171A1 (en) * | 2019-04-24 | 2020-10-29 | 歌尔股份有限公司 | Vibrating diaphragm for miniature sound production device, and miniature sound production device |
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| CN111935606A (en) * | 2020-09-23 | 2020-11-13 | 歌尔股份有限公司 | Composite diaphragm, preparation method thereof and sound production device |
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| CN112265296A (en) * | 2020-09-23 | 2021-01-26 | 歌尔股份有限公司 | Vibrating diaphragm of sound production device, preparation method of vibrating diaphragm and sound production device |
| CN113596678A (en) * | 2021-06-18 | 2021-11-02 | 歌尔股份有限公司 | Vibrating diaphragm for sound production device, preparation method of vibrating diaphragm and sound production device |
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| CN110708638B (en) * | 2019-10-31 | 2020-11-24 | 歌尔股份有限公司 | Vibrating diaphragm for miniature sound generating device and miniature sound generating device |
| CN111935604A (en) * | 2020-09-23 | 2020-11-13 | 歌尔股份有限公司 | Vibrating diaphragm, preparation method thereof and sound production device |
| CN112265296A (en) * | 2020-09-23 | 2021-01-26 | 歌尔股份有限公司 | Vibrating diaphragm of sound production device, preparation method of vibrating diaphragm and sound production device |
| CN111923529A (en) * | 2020-09-23 | 2020-11-13 | 歌尔股份有限公司 | Composite diaphragm, preparation method thereof and sound production device |
| CN111935604B (en) * | 2020-09-23 | 2022-03-15 | 歌尔股份有限公司 | Vibrating diaphragm, preparation method thereof and sound production device |
| CN111923524A (en) * | 2020-09-23 | 2020-11-13 | 歌尔股份有限公司 | Vibrating diaphragm and sound generating device |
| CN111935606B (en) * | 2020-09-23 | 2022-07-19 | 歌尔股份有限公司 | Composite diaphragm, preparation method thereof and sound production device |
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| CN111935606A (en) * | 2020-09-23 | 2020-11-13 | 歌尔股份有限公司 | Composite diaphragm, preparation method thereof and sound production device |
| WO2022160942A1 (en) * | 2021-01-29 | 2022-08-04 | 歌尔股份有限公司 | Vibrating diaphragm and sound production device |
| CN113596678A (en) * | 2021-06-18 | 2021-11-02 | 歌尔股份有限公司 | Vibrating diaphragm for sound production device, preparation method of vibrating diaphragm and sound production device |
| CN113596678B (en) * | 2021-06-18 | 2023-08-25 | 歌尔股份有限公司 | Vibrating diaphragm capable of being used for sound production device, preparation method of vibrating diaphragm and sound production device |
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Application publication date: 20170531 |