CN205987355U - Vibrating diaphragm and be equipped with micro - generator of this vibrating diaphragm - Google Patents

Vibrating diaphragm and be equipped with micro - generator of this vibrating diaphragm Download PDF

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Publication number
CN205987355U
CN205987355U CN201620918784.0U CN201620918784U CN205987355U CN 205987355 U CN205987355 U CN 205987355U CN 201620918784 U CN201620918784 U CN 201620918784U CN 205987355 U CN205987355 U CN 205987355U
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Prior art keywords
vibrating diaphragm
layer
generator
thermoplastic elastomer
micro
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CN201620918784.0U
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Inventor
王婷
闫付臻
吴增勋
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Goertek Inc
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Goertek Inc
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Abstract

The utility model discloses a vibrating diaphragm and be equipped with micro - generator of this vibrating diaphragm relates to electro -acoustic products technical field, the vibrating diaphragm is multilayer composite construction, multilayer composite construction is in including plastics substrate layer and the stack that is located the center the thermoplastic elastomer layer of plastics substrate layer both sides. The utility model discloses the vibrating diaphragm performance was poor during vibrating diaphragm and be equipped with micro - generator of this vibrating diaphragm had solved prior art, easy damaged, deformation, and waterproof nature subalternation technical problem, the utility model discloses vibrating diaphragm and be equipped with micro - generator of this vibrating diaphragm's vibrating diaphragm performance is high, difficult damaged, deformation, and waterproof performance is good, and the micro - generator sound quality is high, and long service life can satisfy the requirement of people to electronic equipment high performance, high sound quality.

Description

Vibrating diaphragm and the minitype acoustic generator being provided with this vibrating diaphragm
Technical field
This utility model is related to electro-acoustic product technical field, particularly to a kind of compound vibrating diaphragm and be provided with the micro- of this vibrating diaphragm Type acoustical generator.
Background technology
Minitype acoustic generator is a kind of important acoustic element in portable electric appts, for being converted into the sound wave signal of telecommunication Acoustical signal spreads out of, and is a kind of energy conversion device.Minitype acoustic generator generally includes vibrational system and magnetic circuit system, vibrational system Including the vibrating diaphragm being combined together and voice coil loudspeaker voice coil, vibrating diaphragm includes edge part, ring portion and the top dome portion that ecto-entad combines successively, shakes Film is the vitals of minitype acoustic generator, has vital effect to the sound reproduction performance of minitype acoustic generator, it determines micro- Type acoustical generator is by the conversion quality of electric energy to acoustic energy.
At present, portable electric appts using increasingly globalization it is desirable to also more and more higher, accordingly to acoustical generator Performance requirement also more and more higher.In order to ensure that product has preferable acoustical behavior, MULTILAYER COMPOSITE vibrating diaphragm is more and more employed In acoustical generator, existing composite diaphragm generally includes positioned at outermost plastic basis material layer, and is clipped in inside plastic basis material layer Thermoplastic elastomer and damping glue-line, this kind of vibrating diaphragm use when can there is following defect:
First, it is difficult to take into account rigidity and the damping characteristic of vibrating diaphragm simultaneously;
2nd, the high power along with minitype acoustic generator and high tone qualityization require, in the next high heat of voice coil loudspeaker voice coil transmission and height Under vibratility, the increase vibrating diaphragm with use time still occurs rupture, damaged and the problems such as subside;
3rd, it is difficult to meet the waterproof requirement of minitype acoustic generator, easily folded film phenomenon occurs, and be difficult after folded film to recover.
Utility model content
For disadvantages described above, first technical problem to be solved in the utility model is to provide a kind of vibrating diaphragm, this vibrating diaphragm Rigidity and damping and amortization can be taken into account, be not susceptible to rupture, damaged, subside, folded film the problems such as, and disclosure satisfy that minitype acoustic generator Waterproof requirement, improves the sound quality of minitype acoustic generator.
Based on the design of same utility model, second technical problem to be solved in the utility model is to provide one kind micro- Type acoustical generator, this minitype acoustic generator sound quality is high, and audition yield is high, disclosure satisfy that people to the loud sound quality of electronic equipment Require.
For solving above-mentioned first technical problem, the technical solution of the utility model is:
A kind of vibrating diaphragm, described vibrating diaphragm is multi-layer compound structure, and described multi-layer compound structure includes the plastics base positioned at center Material layer and the thermoplastic elastomer being superimposed upon described plastic basis material layer both sides.
Wherein, it is provided with damping glue-line between described plastic basis material layer and described thermoplastic elastomer.
Wherein, the material of described thermoplastic elastomer is one of TPEE, TPU, TPAE, TPS, TPO and TPV or many Kind.
Wherein, the thickness of described thermoplastic elastomer is 5 μm~100 μm, and Young's moduluss are 5MPa~1000Mpa.
Wherein, the material of described plastic basis material layer be one of PEEK, PAR, PEI, PI, PPS, PEN, PET and PBT or Multiple.
Wherein, the thickness of described plastic basis material layer is 1 μm~100 μm.
Wherein, the material of described damping glue-line is one or more of acrylate glue and silica gel.
Wherein, the thickness of described damping glue-line is 1 μm~100 μm.
Wherein, the thickness of described vibrating diaphragm is 10 μm~300 μm.
For solving above-mentioned second technical problem, the technical solution of the utility model is:
A kind of minitype acoustic generator, including vibrational system and magnetic circuit system, what described vibrational system included being combined together shakes Film and voice coil loudspeaker voice coil, described vibrating diaphragm is above-mentioned vibrating diaphragm.
After employing technique scheme, the beneficial effects of the utility model are:
Because this utility model vibrating diaphragm is multi-layer compound structure, this multi-layer compound structure includes the plastic basis material positioned at center Layer and the thermoplastic elastomer being superimposed upon plastic basis material layer both sides.Thermoplastic elastomer is arranged on the outer of plastic basis material layer Side, thermoplastic elastomer can make up the not enough defect of plastic basis material layer rigidity, can also provide certain damping and amortization simultaneously, Rigidity and the damping and amortization of vibrating diaphragm can be taken into account, bad, the long service life such as be not susceptible to rupture, breakage, subside;Have good simultaneously Good is pliable, is difficult folded film again, disclosure satisfy that the waterproof requirement of minitype acoustic generator, greatly improve while improving performance The sound quality of minitype acoustic generator.
Due to having additional damping glue-line between plastic basis material layer and thermoplastic elastomer, further enhance vibrating diaphragm Damping characteristic, improve the performance of vibrating diaphragm.
Vibrating diaphragm due to this utility model minitype acoustic generator is above-mentioned vibrating diaphragm, thus sound quality is higher, service life is more Long, disclosure satisfy that the requirement to electronic equipment high-performance, loud sound quality for the people.
In sum, this utility model vibrating diaphragm and be provided with the minitype acoustic generator of this vibrating diaphragm and solve vibrating diaphragm in prior art Can poor, cracky, deformation, the technical problem such as water proofing property difference, this utility model vibrating diaphragm and the minitype acoustic generator being provided with this vibrating diaphragm Vibrating diaphragm performance is high, not cracky, deformation, and water resistance is good, and minitype acoustic generator sound quality is high, and long service life disclosure satisfy that The requirement to electronic equipment high-performance, loud sound quality for the people.
Brief description
Fig. 1 is the cross-sectional view of this utility model vibrating diaphragm;
In figure:10th, plastic basis material layer, 20, damping glue-line, 30, thermoplastic elastomer.
Specific embodiment
With reference to the accompanying drawings and examples, this utility model is expanded on further.
The outside being related in this specification refers to the side near diaphragm surface, then the side away from diaphragm surface is interior Side.
As shown in figure 1, a kind of vibrating diaphragm, including positioned at the top dome portion in centre and the ring being looped around ball top peripheral Portion.This vibrating diaphragm is multi-layer compound structure, and this multi-layer compound structure includes the plastic basis material layer 10 positioned at center, and is located at outermost Two layers of thermoplastic elastomer layer 30, be equipped with one layer of damping glue between plastic basis material layer 10 and two layers of thermoplastic elastomer layer 30 Layer 20, the gross thickness of this vibrating diaphragm is 10 μm~300 μm.
As shown in figure 1, the material of thermoplastic elastomer 30 is TPEE (polyester-type thermoplastic elastomer), TPU (polyurethane Analog thermoplastic elastomer), TPAE (polyamide-type thermoplastic elastomer), TPS (polystyrene-type thermoplastic elastomers), TPO (poly- Olefin hydrocarbons thermoplasticity elastic body) and TPV (dynamic perduren/thermoplastic blends type thermoplastic elastomer (TPE)) etc. in one Plant or multiple, but be not limited to above-mentioned six kind.In present embodiment two layers of thermoplastic elastomer layer 30 can select above-mentioned Same material is it is also possible to select above-mentioned material not of the same race.The thickness of thermoplastic elastomer 30 is 5 μm~100 μm, thermoplastic Property elastomer layer 30 Young's moduluss be 5MPa~1000Mpa, preferably 50MPa~500Mpa.
As shown in figure 1, the material of damping glue-line 20 is one or more of acrylate glue and silica gel etc., it is also not necessarily limited to Two kinds stating.In present embodiment, two-layer damping glue-line 20 can be from above-mentioned same material it is also possible to select above-mentioned Material not of the same race.The thickness of damping glue-line 20 is 1 μm~100 μm.
As shown in figure 1, the material of plastic basis material layer 10 is PEEK (polyether-ether-ketone), PAR (polyarylate), PEI (polyetherimide Amine), PI (polyimides), PPS (polyphenylene sulfide), PEN (PEN), PET (polyethylene terephthalate One or more of ester) and PBT (polybutylene terephthalate (PBT)) etc..The thickness of plastic basis material layer is 1 μm~100 μm.
Thermoplastic elastomer is arranged on the outside of plastic basis material layer by this utility model vibrating diaphragm, can take into account the firm of vibrating diaphragm Property and damping and amortization, be not susceptible to rupture, damaged, bad, the long service life such as subside;Have good pliable, in lifting simultaneously It is difficult folded film while performance again, disclosure satisfy that the waterproof requirement of minitype acoustic generator, greatly improve the sound of minitype acoustic generator Sound quality.
A kind of minitype acoustic generator comprising above-mentioned vibrating diaphragm, including vibrational system and magnetic circuit system, vibrational system includes combining Vibrating diaphragm together and voice coil loudspeaker voice coil, vibrating diaphragm is the vibrating diaphragm of above-mentioned multi-layer compound structure.
Because this utility model minitype acoustic generator employs above-mentioned composite diaphragm, thus sound quality is higher, service life Longer, disclosure satisfy that the requirement to electronic equipment high-performance, loud sound quality for the people.
This utility model is not limited to above-mentioned specific embodiment, and those of ordinary skill in the art visualizes from above-mentioned Send out, without performing creative labour, a variety of conversion made, all fall within protection domain of the present utility model.

Claims (10)

1. vibrating diaphragm, described vibrating diaphragm is multi-layer compound structure it is characterised in that described multi-layer compound structure includes moulding positioned at center Material substrate layer and the thermoplastic elastomer being superimposed upon described plastic basis material layer both sides.
2. vibrating diaphragm according to claim 1 it is characterised in that described plastic basis material layer and described thermoplastic elastomer it Between be provided with damping glue-line.
3. vibrating diaphragm according to claim 2 it is characterised in that described thermoplastic elastomer material be TPEE, TPU, One or more of TPAE, TPS, TPO and TPV.
4. vibrating diaphragm according to claim 3 is it is characterised in that the thickness of described thermoplastic elastomer is 5 μm~100 μ M, Young's moduluss are 5MPa~1000Mpa.
5. vibrating diaphragm according to claim 2 it is characterised in that described plastic basis material layer material be PEEK, PAR, PEI, One or more of PI, PPS, PEN, PET and PBT.
6. vibrating diaphragm according to claim 5 is it is characterised in that the thickness of described plastic basis material layer is 1 μm~100 μm.
7. vibrating diaphragm according to claim 2 is it is characterised in that the material of described damping glue-line is in acrylate glue and silica gel One or more.
8. vibrating diaphragm according to claim 7 is it is characterised in that the thickness of described damping glue-line is 1 μm~100 μm.
9. the vibrating diaphragm according to claim 2 to 8 any claim it is characterised in that:The thickness of described vibrating diaphragm is 10 μm ~300 μm.
10. minitype acoustic generator, including vibrational system and magnetic circuit system, described vibrational system includes the vibrating diaphragm being combined together and sound Circle is it is characterised in that described vibrating diaphragm is the vibrating diaphragm described in claim 1 to 9 any claim.
CN201620918784.0U 2016-08-22 2016-08-22 Vibrating diaphragm and be equipped with micro - generator of this vibrating diaphragm Active CN205987355U (en)

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CN201620918784.0U CN205987355U (en) 2016-08-22 2016-08-22 Vibrating diaphragm and be equipped with micro - generator of this vibrating diaphragm

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108276740A (en) * 2017-12-22 2018-07-13 歌尔股份有限公司 For the vibrating diaphragm of sound-producing device, the preparation method of vibrating diaphragm and sound-producing device
CN109803215A (en) * 2018-12-18 2019-05-24 歌尔股份有限公司 Acoustic apparatus and electronic equipment
CN111405434A (en) * 2020-02-12 2020-07-10 安克创新科技股份有限公司 Loudspeaker assembly
WO2021004340A1 (en) * 2019-07-05 2021-01-14 歌尔股份有限公司 Diaphragm of sound emission device, and sound emission device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108276740A (en) * 2017-12-22 2018-07-13 歌尔股份有限公司 For the vibrating diaphragm of sound-producing device, the preparation method of vibrating diaphragm and sound-producing device
WO2019119941A1 (en) * 2017-12-22 2019-06-27 歌尔股份有限公司 Vibrating diaphragm for sound generating device, method for preparing vibrating diaphragm, and sound generating device
CN109803215A (en) * 2018-12-18 2019-05-24 歌尔股份有限公司 Acoustic apparatus and electronic equipment
WO2021004340A1 (en) * 2019-07-05 2021-01-14 歌尔股份有限公司 Diaphragm of sound emission device, and sound emission device
CN111405434A (en) * 2020-02-12 2020-07-10 安克创新科技股份有限公司 Loudspeaker assembly

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