CN206820986U - Vibrating diaphragm and electroacoustic transducer - Google Patents
Vibrating diaphragm and electroacoustic transducer Download PDFInfo
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- CN206820986U CN206820986U CN201720621186.1U CN201720621186U CN206820986U CN 206820986 U CN206820986 U CN 206820986U CN 201720621186 U CN201720621186 U CN 201720621186U CN 206820986 U CN206820986 U CN 206820986U
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Abstract
The utility model embodiment provides a kind of vibrating diaphragm and electroacoustic transducer.Wherein, vibrating diaphragm includes：At least two layers of thermoplastic elastomer layer；Wherein, the Young's modulus of any two adjacent thermoplastic elastomer is different at least in two layers of thermoplastic elastomer layer.The technical scheme that the utility model embodiment provides causes vibrating diaphragm not only to take into account rigidity and intensity, and there is very excellent resilience, (high heat and strong vibration that such as voice coil loudspeaker voice coil transmits for a long time) still ensures that preferable intensity and resilience under larger pressure effect, contributes to electroacoustic transducer to show the tonequality of high quality and larger loudness.
Description
Technical field
It the utility model is related to electroacoustic techniques field, more particularly to a kind of vibrating diaphragm and electroacoustic transducer.
Background technology
Electroacoustic transducer is applied in a variety of electronic products.The principle of sound of electroacoustic transducer is connected with ac signal
Voice coil loudspeaker voice coil in magnetic field forced vibration so as to driving vibrating diaphragm sounding.The weight that electroacoustic is changed is realized it can be seen that vibrating diaphragm is electroacoustic transducer
Want part.
Deepened continuously with the continuous development of information industry and electronics technology and to basic material research, people are shaking
This technical field of membrane material has carried out many trials and explored, and more optimizes to properties of product.Existing diaphragm materials are adopted more
With the plastic basis material layer (such as polyether-ether-ketone PEEK, polyarylate PAR, PEI PEI, polyimides PI) of high-modulus with it is soft
The compound structure of soft thermoplastic polyurethane elastomer and damping glued membrane (acrylate glue, silica gel etc.).But existing knot
Still there are problems in the vibrating diaphragm of structure, cause electroacoustic transducer to be got a desired effect in tonequality, volume etc..
Utility model content
The vibrating diaphragm of existing structure is difficult to take into account rigidity, elasticity and damping characteristic simultaneously.Inventor has found：In voice coil loudspeaker voice coil for a long time
Under the influence of the high heat of transmission and strong vibration, the vibrating diaphragm of existing structure is also easy to produce vibrating diaphragm rupture, damaged and the problems such as collapse,
And be not easy to recover after deforming, and then influence performance of the electroacoustic transducer in tonequality, volume and service life.
For above-mentioned part or all of problem, one embodiment of the present utility model provides a kind of vibrating diaphragm.The vibrating diaphragm bag
Include：At least two layers of thermoplastic elastomer layer；Wherein, any two adjacent thermoplastic elastomehc at least two layers of thermoplastic elastomer layer
Property body layer Young's modulus it is different.
Alternatively, the Young's modulus is 5~1500MPa.
Alternatively, the thickness of every layer of thermoplastic elastomer is 1 μm~100 at least two layers of thermoplastic elastomer layer
μm。
Alternatively, the gross thickness of the vibrating diaphragm is 5 μm~300 μm.
Alternatively, at least two layers of thermoplastic elastomer layer includes the thermoplastic elastic of following one or more types
Body layer：It is polyester-type thermoplastic elastomer layer, polyurethane-type thermoplastic elastomer layer, polystyrene-type thermoplastic elastomers layer, poly-
Olefin hydrocarbons thermoplasticity elastic body layer, dynamic perduren/thermoplastic blends type thermoplastic elastomer and organic silicon
Thermoplastic elastomer.
Alternatively, at least two layers of thermoplastic elastomer layer formation includes pars intermedia and is surrounded on the pars intermedia
The ring portion structure of periphery.
In another embodiment of the present utility model, there is provided a kind of electroacoustic transducer.The electroacoustic transducer includes：Shake
Film；The vibrating diaphragm includes at least two layers of thermoplastic elastomer layer；Wherein, two adjacent heats at least two layers of thermoplastic elastomer layer
The Young's modulus of thermoplastic elastic layer is different.
Further, the structure that the vibrating diaphragm included in the electroacoustic transducer can use above-described embodiment to provide is realized.
The technical scheme that the utility model embodiment provides, using the structure of at least two layers of thermoplastic elastomer layer, and two
The Young's modulus of adjacent thermoplastic elastomer is different so that and vibrating diaphragm has not only taken into account rigidity and intensity, and with very excellent
Different resilience, under larger pressure effect (high heat and strong vibration that such as voice coil loudspeaker voice coil transmits for a long time) still ensure that compared with
Good intensity and resilience, contributes to electroacoustic transducer to show the tonequality of high quality and larger loudness；In addition, using this reality
The vibrating diaphragm provided with new embodiment, also contribute to the water proofing property of electroacoustic transducer.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are
Some embodiments of the utility model, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the vibrating diaphragm that the embodiment of the utility model one provides；
Fig. 2 is the structural representation for the vibrating diaphragm that another embodiment of the utility model provides；
Fig. 3 is the structural representation for the vibrating diaphragm that the another embodiment of the utility model provides；
Fig. 4 is the structural representation for the vibrating diaphragm that the another embodiment of the utility model provides；
Fig. 5 is the structured flowchart for the vibrating diaphragm that the another embodiment of the utility model provides；
Fig. 6 is the structural representation for the electroacoustic transducer that the embodiment of the utility model one provides.
Embodiment
In order that those skilled in the art more fully understand the utility model, it is real below in conjunction with the utility model
The accompanying drawing in example is applied, the technical scheme in the embodiment of the utility model is clearly and completely described.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe.Obviously, described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those skilled in the art are obtained under the premise of creative work is not made
The every other embodiment obtained, belong to the scope of the utility model protection.
The utility model embodiment, which provides a kind of vibrating diaphragm, includes at least two layers of thermoplastic elastomer layer；Wherein, it is described at least
The Young's modulus of any two adjacent thermoplastic elastomer is different in two layers of thermoplastic elastomer layer.Multiple implementations are classified into below
Example illustrates to technical scheme provided by the utility model.
Fig. 1 shows the structural representation for the vibrating diaphragm that the embodiment of the utility model one provides.What the present embodiment one provided shakes
Film includes：Two layers of thermoplastic elastomer layer.As shown in figure 1, two layers of thermoplastic elastomer layer is respectively the first thermoplastic elastomer (TPE)
The thermoplastic elastomer 2 of layer 1 and second；First thermoplastic elastomer 1 and the second thermoplastic elastomer 2 are stacked；The
One thermoplastic elastomer 1 is different with the Young's modulus of the second thermoplastic elastomer 2.
In above-described embodiment, the first thermoplastic elastomer 1 and the second thermoplastic elastomer 2 can belong to a type
Thermoplastic elastomer (TPE), or different types of thermoplastic elastomer (TPE).
Need exist for supplement be：At least two layers of thermoplastic elastomer layer being related in the utility model embodiment includes
The thermoplastic elastomer of following one or more types：
Polyester-type thermoplastic elastomer layer (TPEE), polyurethane-type thermoplastic elastomer layer (TPU), polystyrene type thermoplastic
Property elastomer layer (TPS), polyolefins thermoplastic elastomer layer (TPO), dynamic perduren/thermoplastic blends type heat
Thermoplastic elastic layer (TPV), organic silicon thermoplastic elastomer etc..
For example, the first thermoplastic elastomer 1 and the second thermoplastic elastomer 2 in above-described embodiment are TPEE
Layer；Or first thermoplastic elastomer 1 be TPU layer, the second thermoplastic elastomer 2 is TPV layers；Or first thermoplastic
Property elastomer layer 1 be TPV layers, the second thermoplastic elastomer 2 is organic silicon thermoplastic elastomer, etc., and this practicality is newly
Type is not especially limited to this.
Young's modulus is to be characterized in material tension or measuring body physical quantity in elastic limit.The big small tenon of Young's modulus
The will rigidity of material, Young's modulus is bigger, be less susceptible to deform upon.It follows that the technical scheme that the present embodiment provides
In, the purpose using at least two different Young's thermoplastic elastomers is：By the big thermoplastic elastomer (TPE) of Young's modulus
Layer ensures the rigidity of vibrating diaphragm and intensity, by the small thermoplastic elastomer of Young's modulus so that vibrating diaphragm has preferably resilience
Property；And then the electroacoustic transducer for being favorably improved the vibrating diaphragm provided using the present embodiment shows the tonequality of high quality and larger
Loudness；In addition, the technical scheme provided using the utility model embodiment, vibrating diaphragm has good pliable and resilience, lifting
Film is not easy while performance again to roll over, collapse, enter without roll over, collapse because of film appearance water resistance reduce the problem of.
In above-described embodiment and following embodiments, the Young's modulus of the thermoplastic elastomer included in vibrating diaphragm can be：5
~1500MPa.For example, the Young's modulus of the first thermoplastic elastomer 1 in above-described embodiment is：5MPa；Second thermoplasticity
The Young's modulus of elastomer layer 2 is 100MPa；Or first the Young's modulus of thermoplastic elastomer 1 be：500MPa；Second
The Young's modulus of thermoplastic elastomer 2 is 1000MPa；Or first the Young's modulus of thermoplastic elastomer 1 be：
1000MPa；The Young's modulus of second thermoplastic elastomer 2 is 1500MPa；Etc..
Fig. 2 shows the structural representation for the vibrating diaphragm that another embodiment of the utility model provides.As shown in Fig. 2 this implementation
The vibrating diaphragm that example provides, including：Three layers of thermoplastic elastomer.Three layers of thermoplastic elastomer are respectively：First thermoplastic
Property elastomer layer 1, the second thermoplastic elastomer 2 and the 3rd thermoplastic elastomer 3.Three layers of thermoplastic elastomer can be with
Belong to same type of thermoplastic elastomer (TPE), or different types of thermoplastic elastomer (TPE).Wherein, in above-described embodiment
The polytype of thermoplastic elastomer (TPE) is enumerated, here is omitted.
Specifically, first thermoplastic elastomer 1, the second thermoplastic elastomer 2 and the 3rd thermoplastic elastomer (TPE)
The Young's modulus of layer 3 can be chosen in 5~1500MPa sections.Wherein, selection rule is as follows：The He of first thermoplastic elastomer 1
Second thermoplastic elastomer 2 has different Young's modulus；Second thermoplastic elastomer 2 and the 3rd thermoplastic elastomer
3 have different Young's modulus；The Young's modulus of first thermoplastic elastomer 1 and the 3rd thermoplastic elastomer 3 can be identical,
Also can be different.
Fig. 3 shows the structural representation for the vibrating diaphragm that the another embodiment of the utility model provides.As shown in figure 3, the vibrating diaphragm
Including：Four layers of thermoplastic elastomer, four layers of thermoplastic elastomer are respectively：First thermoplastic elastomer 1, the second thermoplastic
Property elastomer layer 2, the 3rd thermoplastic elastomer 3 and the 4th thermoplastic elastomer 4.Wherein, four layers of thermoplastic elastomer
It may belong to same type of thermoplastic elastomer (TPE), or different types of thermoplastic elastomer (TPE).Likewise, thermoplastic elastomehc
The type of property body layer can be found in the content in above-described embodiment, and here is omitted.
Specifically, first thermoplastic elastomer 1, the second thermoplastic elastomer 2, the 3rd thermoplastic elastomer
3 and the 4th the Young's modulus of thermoplastic elastomer 4 can be chosen in 5~1500MPa sections.Wherein, selection rule is as follows：The
One thermoplastic elastomer and the second thermoplastic elastomer have different Young's modulus；Second thermoplastic elastomer and
Three thermoplastic elastomers have different Young's modulus；3rd thermoplastic elastomer and the 4th thermoplastic elastomer have
Different Young's modulus.First thermoplastic elastomer and the 4th thermoplastic elastomer, the first thermoplastic elastomer and
Three thermoplastic elastomers and the second thermoplastic elastomer and the 4th thermoplastic elastomer can have different Young moulds
Amount, can also have identical Young's modulus.
In another example the structural representation for the vibrating diaphragm that the another embodiment shown in Fig. 4 provides.As shown in figure 4, the vibrating diaphragm includes
Five layers of thermoplastic elastomer.Five layers of thermoplastic elastomer are respectively：First thermoplastic elastomer 1, the second thermoplasticity
Elastomer layer 2, the 3rd thermoplastic elastomer 3, the 4th thermoplastic elastomer 4 and the 5th thermoplastic elastomer 5.Wherein,
First thermoplastic elastomer 1, the second thermoplastic elastomer 2,3 layers of the 3rd thermoplastic elastomer (TPE), the 4th thermoplastic elastomer (TPE)
The thermoplastic elastomer 5 of layer 4 and the 5th may belong to same type of thermoplastic elastomer (TPE), or different types of thermoplasticity
Elastomer.Adjacent two layers there is different Young's modulus in five layers of thermoplastic elastomer.
Need exist for explanation be：The vibrating diaphragm that the various embodiments described above provide can be specially the structure shown in Fig. 5, that is, wrap
Include pars intermedia 100 and be surrounded on the ring portion 200 of the periphery of pars intermedia 100.At least two layers of the various embodiments described above offer
During thermoplastic elastomer (the first thermoplastic elastomer 1 and the second thermoplastic elastomer 2 in such as Fig. 5) formation includes
Between portion 100 and be surrounded on the structure of ring portion 200 of the periphery of pars intermedia 100.
Need exist for explanation be：In the utility model embodiment, thermoplastic elastomer (TPE) can be set according to the actual requirements
The number of plies of layer, for example, six layers or more layers；The utility model is not especially limited to this.Second thermoplastic of six layers or more layers
Property elastomer layer in, the Young's modulus of any two adjacent second thermoplastic elastomer is different.
Further, the vibrating diaphragm that the various embodiments described above provide can be by melting coextruding method, heat posted composite algorithm and molten
It is prepared by liquid rubbing method.Wherein, the specific implementation for melting coextruding method, heat posted composite algorithm and solution coating method can be found in the prior art
Related content, here is omitted.
Further, the gross thickness for the vibrating diaphragm that the various embodiments described above provide can be 5 μm~300 μm, wherein every layer of thermoplasticity
The thickness range of elastomer layer can be 1 μm~100 μm.
Fig. 6 shows the structural representation for the electroacoustic transducer that the embodiment of the utility model one provides.As shown in fig. 6, institute
Stating electroacoustic transducer includes vibrating diaphragm 10.Wherein, vibrating diaphragm 10 includes：At least two layers of thermoplastic elastomer layer (not shown)；Its
In, the Young's modulus of any two adjacent thermoplastic elastomer is different at least in two layers of thermoplastic elastomer layer.
As shown in fig. 6, the vibrating diaphragm 10 sets the top of voice coil loudspeaker voice coil 20, voice coil loudspeaker voice coil 20 is arranged on the top of magnetic circuit system 30 with vibrating diaphragm 10.
Specifically, the structure that the vibrating diaphragm in the present embodiment can use the various embodiments described above to provide is realized and (shown as shown in Figure 1 to Figure 4
Structure).
In summary, the technical scheme that the utility model embodiment provides has the advantages that：
1st, vibrating diaphragm is using the different thermoplastic elastomer composition of at least two Young's modulus, in composition without plastic basis material or
Damp glue-line.This structure composition has not only taken into account the rigidity and intensity of vibrating diaphragm, and has very excellent resilience.
2nd, the electroacoustic transducer (such as loudspeaker) of the vibrating diaphragm provided using the various embodiments described above can show high quality
Tonequality and larger loudness.
3rd, the vibrating diaphragm that the various embodiments described above provide has a good pliable and resilience, is not easy film again while improving performance
Folding, can meet the requirement of waterproof.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the utility model technology
The spirit and scope of scheme.
Claims (7)
- A kind of 1. vibrating diaphragm, it is characterised in that including：At least two layers of thermoplastic elastomer layer；Wherein,The Young's modulus of any two adjacent thermoplastic elastomer is different at least two layers of thermoplastic elastomer layer.
- 2. vibrating diaphragm according to claim 1, it is characterised in that the Young's modulus is 5~1500MPa.
- 3. vibrating diaphragm according to claim 1 or 2, it is characterised in that every layer at least two layers of thermoplastic elastomer layer The thickness of thermoplastic elastomer is 1 μm~100 μm.
- 4. vibrating diaphragm according to claim 1 or 2, it is characterised in that the gross thickness of the vibrating diaphragm is 5 μm~300 μm.
- 5. vibrating diaphragm according to claim 1 or 2, it is characterised in that at least two layers of thermoplastic elastomer layer includes The thermoplastic elastomer of following one or more types：Polyester-type thermoplastic elastomer layer, polyurethane-type thermoplastic elastomer layer, polystyrene-type thermoplastic elastomers layer, polyene Hydrocarbon thermoplastic's elastomer layer, dynamic perduren/thermoplastic blends type thermoplastic elastomer and organic silicon heat Thermoplastic elastic layer.
- 6. vibrating diaphragm according to claim 1 or 2, it is characterised in that at least two layers of thermoplastic elastomer layer forms bag Containing pars intermedia and it is surrounded on the ring portion structure of the pars intermedia periphery.
- A kind of 7. electroacoustic transducer, it is characterised in that including：Vibrating diaphragm any one of the claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621186.1U CN206820986U (en) | 2017-05-31 | 2017-05-31 | Vibrating diaphragm and electroacoustic transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621186.1U CN206820986U (en) | 2017-05-31 | 2017-05-31 | Vibrating diaphragm and electroacoustic transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206820986U true CN206820986U (en) | 2017-12-29 |
Family
ID=60758374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720621186.1U Active CN206820986U (en) | 2017-05-31 | 2017-05-31 | Vibrating diaphragm and electroacoustic transducer |
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| Country | Link |
|---|---|
| CN (1) | CN206820986U (en) |
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2017
- 2017-05-31 CN CN201720621186.1U patent/CN206820986U/en active Active
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