CN207053754U - Vibrating diaphragm and loudspeaker monomer - Google Patents
Vibrating diaphragm and loudspeaker monomer Download PDFInfo
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- CN207053754U CN207053754U CN201720802367.4U CN201720802367U CN207053754U CN 207053754 U CN207053754 U CN 207053754U CN 201720802367 U CN201720802367 U CN 201720802367U CN 207053754 U CN207053754 U CN 207053754U
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Abstract
The utility model discloses a kind of vibrating diaphragm and loudspeaker monomer.The vibrating diaphragm includes the first top layer, the second top layer, the first elastomer layer, the second elastomer layer and damping layer, first top layer, second top layer, the first elastomer layer, the second elastomer layer and damping layer are combined with each other, the damping layer is between first elastomer layer and second elastomer layer, and first elastomer layer and second elastomer layer, between first top layer and second top layer, first top layer and second top layer wherein at least one are made by PPSU.The vibrating diaphragm has good resistance to elevated temperatures, resistance to tearing energy, durability and rebound performance.The loudspeaker monomer includes vibrating diaphragm provided by the utility model.
Description
Technical field
Electroacoustic switch technology field is the utility model is related to, more particularly, to a kind of vibrating diaphragm and applies the vibrating diaphragm
Loudspeaker monomer.
Background technology
At present, Microspeaker widely uses polyether-ether-ketone (PEEK), PEI (PEI), polyimides (PI), poly-
The composite of the engineering plastics such as aromatic ester (PAR) and glued membrane is as vibrating diaphragm.But with the continuous hair of the acoustic product market demand
Exhibition, people propose higher requirement to loudspeaker acoustical behavior and reliability.For example, the running power of loudspeaker requires more next
Higher, the duration of runs requires increasingly longer.This needs vibrating diaphragm to bear high temperature and is not easy to tear under big load.It is and existing
The performances such as the resistance to elevated temperatures of vibrating diaphragm, resistance to tearing, durability, resilience can not meet the requirement of acoustics and reliability.
Utility model content
A purpose of the present utility model is to provide a kind of new solution of vibrating diaphragm.
According to first aspect of the present utility model, there is provided a kind of vibrating diaphragm.The vibrating diaphragm include the first top layer, the second top layer,
First elastomer layer, the second elastomer layer and damping layer, first top layer, second top layer, the first elastomer layer, second
Elastomer layer and damping layer are combined with each other, the damping layer be located at first elastomer layer and second elastomer layer it
Between, and first elastomer layer and second elastomer layer be between first top layer and second top layer, institute
State the first top layer and second top layer wherein at least one is made by PPSU.
Alternatively, when on first top layer and second top layer, one of them is made by PPSU, institute
Another in the first top layer and second top layer is stated by polyether-ether-ketone, PEN, PAEK, polyethers
Ketone, polyarylate, liquid crystal polymer, polyethylene terephthalate, polybutylene terephthalate (PBT), makrolon, polyethers
Acid imide, polyether sulfone, polyimides, polyphenylene sulfide or polysulfones are made.
Alternatively, first elastomer layer and/or the second elastic layer by polyurethane elastomer, polyester elastomer,
Polyamide-based elastomer, polyolefin elastomer or TPV are made.
Alternatively, the damping layer is made by acrylate glue, silica gel or pressure sensitive adhesive.
Alternatively, in first top layer, second top layer, first elastomer layer and second elastomer layer
At least one layer of thickness be 2-30 μm.
Alternatively, the thickness of the damping layer is 5-50 μm.
Alternatively, at least one top layer in first top layer and second top layer and first elastomer layer and
At least one elastomer layer in second elastomer layer is compound by way of hot pressing.
According to other side of the present utility model, there is provided a kind of loudspeaker monomer.The loudspeaker monomer includes this reality
With the vibrating diaphragm of new offer, and the voice coil loudspeaker voice coil being fixed on below vibrating diaphragm.
Alternatively, the vibrating diaphragm includes central part and around the ring portion of central part, the central part and the ring portion
By the first top layer, the first elastomer layer, damping layer, the compound composition of the second elastomer layer and the second top layer；Or only central part
By first top layer, the first elastomer layer, damping layer, the second elastomer layer and second top layer is compound forms；Or only
The ring portion is by first top layer, the first elastomer layer, damping layer, the second elastomer layer and the compound structure in the second top layer
Into.
Alternatively, the first top layer for being made by the PPSU is made by the PPSU
Second top layer and the voice coil loudspeaker voice coil secure bond.
Inventor of the present utility model has found that in the prior art, the acoustical behavior and reliability of vibrating diaphragm can not meet to raise
The requirement of sound device monomer.Therefore, the technical assignment or technical problem to be solved that the utility model to be realized are abilities
It is that field technique personnel never expect or it is not expected that, therefore the utility model is a kind of new technical scheme.
In embodiment of the present utility model, the first top layer and/or the second top layer as made from PPSU (PPSU),
Resistance to elevated temperatures, resistance to tearing energy and the durability of vibrating diaphragm can be significantly improved, this causes the acoustical behavior of vibrating diaphragm and reliability to carry
It is high.
In addition, this material can reduce the diaphagras of vibrating diaphragm so that vibrating diaphragm can be normal under bigger power
Work.
In addition, the first elastomer layer and the second elastomer layer can improve the resilience of vibrating diaphragm.Damping layer, which can improve, to be raised
The tonequality of sound device monomer.
It is of the present utility model other by referring to the drawings to the detailed description of exemplary embodiment of the present utility model
Feature and its advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiment of the present utility model, and
And it is used to explain principle of the present utility model together with its explanation.
Fig. 1 is the sectional view according to the vibrating diaphragm of the utility model one embodiment.
Description of reference numerals：
11：First top layer；12：First elastomer layer；13：Damping layer；14：Second elastomer layer；15：Second top layer.
Embodiment
Various exemplary embodiments of the present utility model are described in detail now with reference to accompanying drawing.It should be noted that：It is unless another
Illustrate outside, the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
Fig. 1 is the sectional view according to the vibrating diaphragm of the utility model one embodiment.
According to one embodiment of the present utility model, there is provided a kind of vibrating diaphragm.For example, vibrating diaphragm is ring vibrating diaphragm or plane
Structure vibrating diaphragm.The vibrating diaphragm is used for loudspeaker monomer.
As shown in figure 1, the vibrating diaphragm includes the first top layer 11, the second top layer 15, the first elastomer layer 12, the second elastomer layer
14 and damping layer 13.First top layer 11, the second top layer 15, the first elastomer layer 12, the second elastomer layer 14 and damping layer 13 are multiple
It is combined.Damping layer 13 is between the first elastomer layer 12 and the second elastomer layer 14, and the first elastomer layer 12 and
Two elastomer layers 14 are between the first top layer 11 and the second top layer 15.First top layer 11 and the wherein at least one of the second top layer 15
It is made by PPSU (PPSU).
Specifically, vibrating diaphragm is combined by plural layers, to form composite bed.First top layer 11 and the second top layer 15 are multiple
The outer layer of layer is closed, damping layer 13 is the intermediate layer of composite bed, the elastomer layer of sandwiched first between the top layer 11 of damping layer 13 and first
12, the second elastomer layer of sandwiched 14 between the top layer 15 of damping layer 13 and second.
It should be noted that in the utility model, can be with the bullet of sandwiched second between the top layer 11 of damping layer 13 and first
Property body layer 14, can be without limitation with the first elastomer layer of sandwiched 12 between the top layer 15 of damping layer 13 and second.Below with
The first elastomer layer of sandwiched 12 between the top layer 11 of damping layer 13 and first, the bullet of sandwiched second between the top layer 15 of damping layer 13 and second
Exemplified by property body layer 14, illustrate.
First elastomer layer 12 and the second elastomer layer 14 have good rebound performance, can make vibrating diaphragm resilience in vibration
Property it is good, prevent vibrating diaphragm occur plastic deformation.
Damping layer 13 can produce damping effect, to consume unnecessary vibrational energy, to be carried out to the vibration frequency of vibrating diaphragm
Adjustment, prevents that the sound of loudspeaker monomer is ear-piercing.
In addition, damping layer 13 can reduce in vibration the noise as caused by vibrating diaphragm, the tonequality of loudspeaker monomer can be improved.
It should be noted that the first elastomer layer 12, the elastomer layer 14 of damping layer 13 and second can be entity structures,
It can be skeleton structure.The structure of vibrating diaphragm is not limited to above-mentioned five layers.In other examples, vibrating diaphragm includes multiple damping layers 13, more
Individual elastomer layer.Either, vibrating diaphragm also includes other functional layers.
For example, the functional layer of the amplitude for increasing vibrating diaphragm；For the functional layer for the diaphagras for improving vibrating diaphragm；For surveying
Measure functional layer of amplitude of vibrating diaphragm etc..
Those skilled in the art can set other work(according to being actually needed between the first top layer 11 and the second top layer 15
Ergosphere.
The chemical constitution of PPSU (PPSU) material is：
PPSU is to be joined directly together to form conjugated structure by two phenyl ring.It is enough that the molecular structure possesses material
Rigidity.
In addition, the presence of ehter bond substantially improves the compliance of molecule so that the toughness of the film after shaping improves, breach
Sensitiveness reduces.This causes film to be not easy to be torn.The modulus of elasticity for the film that PPSU (PPSU) is made is
1000MPa-2500MPa；Glass transition temperature is 180-240 DEG C；Elongation at break is more than or equal to 80%.PPSU these property
The skin-material used at present can be above.
The first top layer 11 as made from PPSU (PPSU) and/or the second top layer 15, can significantly improve the resistance to of vibrating diaphragm
High-temperature behavior, resistance to tearing energy and durability, this causes the vibration performance of vibrating diaphragm and reliability to improve.
In addition, this material can reduce the diaphagras of vibrating diaphragm so that vibrating diaphragm can be normal under bigger power
Work.
Optionally, on the first top layer 11 and the second top layer 15, one of them is made by PPSU (PPSU)
When, in the first top layer 11 and the second top layer 15 another by polyether-ether-ketone (PEEK), PEN (PEN),
PAEK (PAEK), polyether-ketone (PEK), polyarylate (PAR), liquid crystal polymer (LCP), polyethylene terephthalate
(PET), polybutylene terephthalate (PBT) (PBT), makrolon (PC), PEI (PEI), polyether sulfone (PES), polyamides
Imines (PI), polyphenylene sulfide (PPS) or polysulfones (PSU) are made.These materials it is tear-resistant functional.
It should be noted that polyether-ether-ketone (PEEK), PEN (PEN), PAEK (PAEK), poly-
Ether ketone (PEK), polyarylate (PAR), liquid crystal polymer (LCP), polyethylene terephthalate (PET), poly terephthalic acid
Butanediol ester (PBT), makrolon (PC), PEI (PEI), polyether sulfone (PES), polyimides (PI), polyphenylene sulfide
(PPS) and polysulfones (PSU) is the well known materials as vibrating diaphragm, is no longer illustrated one by one herein.
For example, any one of above-mentioned material, the first top layer 11 or the second top layer 15 are formed using the method for injection.
It should be noted that the first top layer 11 and the second top layer 15 can use simultaneously PPSU (PPSU) make and
Into.In this way, resistance to elevated temperatures, resistance to tearing energy and the durability of vibrating diaphragm can further be improved.
In addition, if the vibrating diaphragm of planar structure, when being installed in loudspeaker monomer, due to vibrating diaphragm two top layers all
With good physical property, therefore need not distinguish between the positive and negative of vibrating diaphragm.
Preferably, when vibrating diaphragm is assembled to loudspeaker monomer, the top layer as made from PPSU (PPSU) (for example,
First top layer 11 or the second top layer 15) close to magnetic circuit system.The top layer is directly connected with voice coil loudspeaker voice coil.The heat resistance on the top layer is good
It is good, during long-term use, the heat as caused by voice coil loudspeaker voice coil can be born.
Optionally, the first elastomer layer 12 and/or the second elastomer layer 14 can be thermoplastic elastomer.
Further, the first elastomer layer 12 and/or the second elastomer layer 14 are by polyurethane elastomer (TPU), polyester
Class elastomer (TPEE), polyamide-based elastomer (TPAE), polyolefin elastomer (POE) or TPV (TPV)
It is made.The resilience of this different materials is worked well, and vibrating diaphragm can be made to possess good resilience.
For example, any one of above-mentioned material, the first elastomer layer 12 and/or second is formed using the method for injection molding
Elastomer layer 14.
It should be noted that the material of the first elastomer layer 12 and the second elastomer layer 14 can be with identical, can also be different,
The utility model is without limitation.
Preferably, in the first top layer 11, the second top layer 15, the first elastomer layer 12 and the second elastomer layer 14 at least
One layer of thickness is 2-30 μm.The thickness range can enable vibrating diaphragm have good resistance to elevated temperatures, resistance to tearing, durability and
Resilience.
For example, four layers are all film.The film of the thickness range is easily molded, and difficulty of processing is low.
It should be noted that the power of loudspeaker is bigger, then the first top layer 11, the second top layer 15, the first elastomer layer 12
It is bigger with the thickness of the second elastomer layer 14；Conversely, power of loudspeaker is smaller, then the first top layer 11, the second top layer 15, the first bullet
The thickness of property body layer 12 and the second elastomer layer 14 is smaller.
Those skilled in the art can set the first top layer 11, the second top layer 15, the first elastomer layer according to being actually needed
12 and second elastomer layer 14 thickness.
Preferably, at least one top layer in the first top layer 11 and the second top layer 15 and the first elastomer layer 12 and second
At least one elastomer layer in elastomer layer 14 is bonded by way of hot paste.This laminating type, have what is be connected firmly
Feature.As, the first top layer 11 is bonded with the first elastomer layer 12 by way of hot paste, and/or the second top layer 15 and second
Elastomer layer 14 is bonded by way of hot paste.
Further, the first elastomer layer 12 and the second elastomer layer 14 are bonded together by damping layer 13.
In this way, the vibrating diaphragm of composite bed can be made there is good bonding strength, further increase the resistance to of vibrating diaphragm
The property used.
Preferably, in the compound tense by way of hot pressing, the compound temperature of hot pressing is 100-150 DEG C.The temperature can protect
Demonstrate,prove good fitting effect.
In addition, the combined temp will not cause to damage to the first top layer 11, the second top layer 15.
Optionally, damping layer 13 is made by acrylate glue, silica gel or pressure sensitive adhesive.This different materials has good
Damping, the F of vibrating diaphragm can be significantly reducedo(lowest resonance frequency).
In addition, this different materials can reduce noise caused by vibrating diaphragm.
In addition, the viscosity of this different materials is high, between this causes the elastomer layer 12 of damping layer 13 and first, and damping layer
Being bonded between 13 and the second elastomer layer 14 is easier.
In addition, the vibrating diaphragm of composite bed can obtain good bonding strength, good tolerance.
Preferably, the thickness of damping layer 13 is 5-50 μm.The thickness damping is good, and is processed into film and more holds
Easily.
It should be noted that the power of loudspeaker is bigger, then the thickness of damping layer 13 is bigger；Otherwise the power of loudspeaker is got over
Small, then the thickness of damping layer 13 is smaller.
The thickness that those skilled in the art can set damping layer 13 according to being actually needed.
According to another embodiment of the present utility model, there is provided a kind of loudspeaker monomer.The loudspeaker monomer includes this
The vibrating diaphragm that utility model provides, and the voice coil loudspeaker voice coil being fixed on below vibrating diaphragm.
Further, vibrating diaphragm includes central part and around the ring portion of central part, and central part and ring portion are by the first table
Layer, the compound composition of the first elastomer layer, damping layer, the second elastomer layer and the second top layer；Or only central part by the first top layer,
First elastomer layer, damping layer, the compound composition of the second elastomer layer and the second top layer；Or only ring portion is by the first top layer,
One elastomer layer, damping layer, the compound composition of the second elastomer layer and the second top layer.
Further, the first top layer being made by PPSU or the second table being made by PPSU
Layer and the voice coil loudspeaker voice coil secure bond.When first top layer of as only vibrating diaphragm is made by PPSU, then the first of vibrating diaphragm
Top layer is connected close to magnetic circuit system with voice coil loudspeaker voice coil.When being made on the second top layer of only vibrating diaphragm by PPSU, then vibrating diaphragm
Second top layer is connected close to magnetic circuit system with voice coil loudspeaker voice coil.Made on the first top layer of vibrating diaphragm and the second top layer by PPSU and
Cheng Shi, then any top layer in the first top layer and the second top layer be connected close to magnetic circuit system with voice coil loudspeaker voice coil.So, by gathering sub- benzene
The heat resistance on the top layer that base sulfone is made is good, during long-term use, can bear the heat as caused by voice coil loudspeaker voice coil.
Optionally, loudspeaker monomer is moving-coil type monomer or moving-iron type monomer.For convenience of explanation, in the embodiment
In, by taking moving-coil type monomer as an example.
In this example embodiment, vibrating diaphragm is ring vibrating diaphragm.Ring vibrating diaphragm is connected with voice coil loudspeaker voice coil, to form vibration component.Loudspeaker list
Body also includes magnetic circuit component.Vibrating diaphragm is suspended above above magnetic circuit component.In the magnetic gap of voice coil loudspeaker voice coil insertion magnetic circuit component.
Voice coil loudspeaker voice coil receives the ac signal of external circuit, is vibrated in the magnetic field of magnetic circuit component.Voice coil loudspeaker voice coil drives vibrating diaphragm
Vibration, to send sound.
The loudspeaker monomer has the characteristics of good tolerance, sound effect is good.
Although some specific embodiments of the present utility model are described in detail by example, this area
It is to be understood by the skilled artisans that example above merely to illustrate, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case of, to above example
Modify.The scope of the utility model is defined by the following claims.
Claims (10)
- A kind of 1. vibrating diaphragm, it is characterised in that：Including the first top layer, the second top layer, the first elastomer layer, the second elastomer layer and resistance Buddhist nun's layer, first top layer, second top layer, the first elastomer layer, the second elastomer layer and damping layer are combined with each other, institute Damping layer is stated between first elastomer layer and second elastomer layer, and first elastomer layer and described Two elastomer layers are between first top layer and second top layer, and first top layer and second top layer are wherein extremely Few one is made by PPSU.
- 2. vibrating diaphragm according to claim 1, it is characterised in that：First top layer and second top layer one of them When being made by PPSU, another in first top layer and second top layer is by polyether-ether-ketone, poly- naphthalene two It is formic acid glycol ester, PAEK, polyether-ketone, polyarylate, liquid crystal polymer, polyethylene terephthalate, poly- to benzene two Formic acid butanediol ester, makrolon, PEI, polyether sulfone, polyimides, polyphenylene sulfide or polysulfones are made.
- 3. vibrating diaphragm according to claim 1, it is characterised in that：First elastomer layer and/or the second elastic layer are by gathering Urethane class elastomer, polyester elastomer, polyamide-based elastomer, polyolefin elastomer or TPV make and Into.
- 4. vibrating diaphragm according to claim 1, it is characterised in that：The damping layer is by acrylate glue, silica gel or pressure sensitive adhesive It is made.
- 5. vibrating diaphragm according to claim 1, it is characterised in that：First top layer, second top layer, first bullet Property body layer and second elastomer layer at least one layer of thickness be 2-30 μm.
- 6. vibrating diaphragm according to claim 1, it is characterised in that：The thickness of the damping layer is 5-50 μm.
- 7. vibrating diaphragm according to claim 1, it is characterised in that：At least one in first top layer and second top layer Individual top layer and at least one elastomer layer in first elastomer layer and the second elastomer layer are compound by way of hot pressing.
- A kind of 8. loudspeaker monomer, it is characterised in that：Including the vibrating diaphragm as described in any one of claim 1-7, Yi Jigu Voice coil loudspeaker voice coil below vibrating diaphragm.
- 9. loudspeaker monomer according to claim 8, it is characterised in that：The vibrating diaphragm includes central part and around the ring portion of central part, and the central part and the ring portion are by the first table Layer, the compound composition of the first elastomer layer, damping layer, the second elastomer layer and the second top layer；Or only central part is by described first Top layer, the first elastomer layer, damping layer, the second elastomer layer and the compound composition in the second top layer；Or only described ring portion By first top layer, the first elastomer layer, damping layer, the second elastomer layer and second top layer is compound forms.
- 10. loudspeaker monomer according to claim 9, it is characterised in that：The first top layer for being made by the PPSU or by the second top layer that the PPSU is made with The voice coil loudspeaker voice coil secure bond.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720802367.4U CN207053754U (en) | 2017-07-04 | 2017-07-04 | Vibrating diaphragm and loudspeaker monomer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720802367.4U CN207053754U (en) | 2017-07-04 | 2017-07-04 | Vibrating diaphragm and loudspeaker monomer |
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| Publication Number | Publication Date |
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| CN207053754U true CN207053754U (en) | 2018-02-27 |
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ID=61494892
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804154A (en) * | 2019-10-31 | 2020-02-18 | 歌尔股份有限公司 | Sound generating device's vibrating diaphragm and sound generating device |
-
2017
- 2017-07-04 CN CN201720802367.4U patent/CN207053754U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804154A (en) * | 2019-10-31 | 2020-02-18 | 歌尔股份有限公司 | Sound generating device's vibrating diaphragm and sound generating device |
| WO2021082251A1 (en) * | 2019-10-31 | 2021-05-06 | 歌尔股份有限公司 | Vibrating diaphragm for sound-producing device and sound-producing device |
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