CN207466019U - For the composite diaphragm of sound-producing device - Google Patents
For the composite diaphragm of sound-producing device Download PDFInfo
- Publication number
- CN207466019U CN207466019U CN201721034976.6U CN201721034976U CN207466019U CN 207466019 U CN207466019 U CN 207466019U CN 201721034976 U CN201721034976 U CN 201721034976U CN 207466019 U CN207466019 U CN 207466019U
- Authority
- CN
- China
- Prior art keywords
- layer
- thermoplastic elastomer
- silastic
- composite diaphragm
- adhesive layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of composite diaphragms for sound-producing device.Composite diaphragm is combined by multiple film layers, and multiple film layers include at least one layer of thermoplastic elastomer, at least one layer of adhesive layer and at least one layer of silastic-layer, wherein, adhesive layer is located at the middle layer of composite diaphragm.The vibrating diaphragm that the utility model embodiment provides has both the property of three kinds of materials, has good rigidity and damping and amortization, and with excellent resilience and temperature tolerance.Phenomena such as composite diaphragm is not susceptible to film folding, collapses, and water proofing property, good tolerance.
Description
Technical field
The utility model is related to technical field of composite materials, shake more particularly, to a kind of for the compound of sound-producing device
Film.
Background technology
The vibrating diaphragm of loud speaker is currently used for mostly using the plastic basis material layer (PEEK, PAR, PEI, PI etc.) of high-modulus and softness
Thermoplastic polyurethane elastomer (TPU) and damping glued membrane (acrylate glue, silica gel etc.) compound structure.It is existing compound to shake
Film has the following disadvantages：
It is difficult to take into account the rigid, elastic of vibrating diaphragm, damping characteristic simultaneously.
Along with the high power of loud speaker, under the high heat come in voice coil transmission and strong vibration effect, with the time
The problems such as passage can generate vibrating diaphragm rupture, breakage, collapse.
Existing diaphragm structure, it is difficult to meet the requirement of water-proof loudspeaker, film easily occurs after pressure increase roll over, collapse etc. to show
As, and be not easy to reply after deforming.
With the raising that high power, waterproof and high tone quality require, the vibrating diaphragm of silicone rubber material is in loud speaker field
It is applied.Existing silicon rubber vibrating diaphragm, has the following disadvantages：
Because the modulus or hardness of silicon rubber are relatively low, meeting identical F0Under the premise of it is required that, vibrating diaphragm thickness is thicker, and one
The surplus of aspect oscillation space becomes smaller, and the quality of another aspect vibrational system increases, and has lost a part of sensitivity.
In addition, because of the limited strength of silicon rubber, there is rupture of membranes in vibrating diaphragm.
Utility model content
One purpose of the utility model is to provide a kind of new solution of the composite diaphragm for sound-producing device.
It is according to the present utility model in a first aspect, providing a kind of composite diaphragm for sound-producing device.It is described compound to shake
Film is combined by multiple film layers, and the multiple film layer includes at least one layer of thermoplastic elastomer, at least one layer of adhesive layer
With at least one layer of silastic-layer, wherein, the adhesive layer is located at the middle layer of the composite diaphragm.
Optionally, at least one layer of thermoplastic elastomer includes the first thermoplastic elastomer, at least one layer
Adhesive layer includes the first adhesive layer, and at least one layer silastic-layer includes the first silastic-layer,
Wherein, first thermoplastic elastomer, first adhesive layer and first silastic-layer are arranged successively
Row, are combined with each other.
Optionally, at least one layer of thermoplastic elastomer includes the first thermoplastic elastomer, at least one layer
Adhesive layer includes the first adhesive layer, and at least one layer silastic-layer includes the first silastic-layer and the second silastic-layer,
Wherein, first thermoplastic elastomer, first silastic-layer, first adhesive layer and described
Two silastic-layers are arranged in order, and are combined with each other；Or
First silastic-layer, first thermoplastic elastomer, first adhesive layer and second silicon
Rubber layer is arranged in order, and is combined with each other.
Optionally, at least one layer of thermoplastic elastomer includes the first thermoplastic elastomer and the second thermoplastic elastomehc
Property body layer, it is described at least one layer adhesive layer include the first adhesive layer and the second adhesive layer, it is described at least one layer silicon rubber
Layer includes the first silastic-layer,
Wherein, the first thermoplastic elastomer, first adhesive layer, first silastic-layer, second glue
Adhensive layer and second thermoplastic elastomer are arranged in order, and are combined with each other.
Optionally, at least one layer of thermoplastic elastomer includes the first thermoplastic elastomer and the second thermoplastic elastomehc
Property body layer, it is described at least one layer adhesive layer include the first adhesive layer, it is described at least one layer silastic-layer include the first silicon rubber
Glue-line and the second silastic-layer,
Wherein, first thermoplastic elastomer, first silastic-layer, first adhesive layer, described
Two silastic-layers and second thermoplastic elastomer are arranged in order, and are combined with each other.
Optionally, the thermoplastic elastomer is by polyester-type thermoplastic elastomer, polyurethane-type thermoplastic elastomer, poly-
Amide analog thermoplastic elastomer, polystyrene-type thermoplastic elastomers, polyolefins thermoplastic elastomer, dynamic perduren with
Any one or more in thermoplastic blends type thermoplastic elastomer (TPE) is made.
Optionally, the thermoplastic elastomer includes surface treated connection surface.
Optionally, the silastic-layer is made by liquid silastic or firm silicone rubber.
Optionally, the composite diaphragm is made by hot-forming.
Optionally, the hot-forming temperature is 60-220 DEG C.
The inventor of the utility model has found that in the prior art, composite diaphragm is difficult to take into account rigidity, elasticity and damping
Characteristic；Silicon rubber vibrating diaphragm thickness is big, sensitivity is low.Therefore, the technical assignment or to be solved that the utility model to be realized
The technical issues of be it is that those skilled in the art never expect or it is not expected that, therefore the utility model is a kind of new skill
Art scheme.
The vibrating diaphragm that the utility model embodiment provides has both the property of three kinds of materials, has good rigidity and damping and amortization,
And with excellent resilience and temperature tolerance.
In addition, phenomena such as composite diaphragm is not susceptible to film folding, collapses, and water proofing property, good tolerance.
In addition, by the way that silicon rubber and thermoplastic elastomer (TPE) and adhesive are combined with each other, which is meeting F0It is (minimum
Resonant frequency) requirement under, what can be done is thinner, so as to make vibrating diaphragm have high sensitivity.
By referring to the drawings to the detailed description of the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Description of the drawings
It is combined in the description and the attached drawing of a part for constitution instruction shows the embodiment of the utility model, and
And it is used to explain the principle of the utility model together with its explanation.
Fig. 1-5 is the sectional view of the vibrating diaphragm of embodiment according to the present utility model.
Fig. 6 is the flow chart of the preparation method of the composite diaphragm of one embodiment according to the present utility model.
Reference sign：
1：First thermoplastic elastomer；2：Second thermoplastic elastomer；4：First adhesive layer；5：Second adhesive
Layer；6：First silastic-layer；7：Second silastic-layer.
Specific embodiment
The various exemplary embodiments of the utility model are described in detail now with reference to attached drawing.It should be noted that：It is unless another
It illustrates outside, the component 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.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to this practicality
Novel and its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, 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 attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need to that it is further discussed.
One embodiment according to the present utility model provides a kind of composite diaphragm for sound-producing device.This is compound to shake
Film is combined by multiple film layers.Multiple film layers form composite construction.Multiple film layers include at least one layer of thermoplastic elastomer,
At least one layer of adhesive layer and at least one layer of silastic-layer, wherein, adhesive layer is located at the middle layer of composite diaphragm.
It should be noted that composite diaphragm is upper and lower surface layer and positioned at upper and lower surface layer including outermost two surface layers
Between middle layer.Since adhesive has viscosity, therefore adhesive is arranged on middle layer, can play be bonded with, lower film layer
Effect.
Thermoplastic elastomer provides enough rigidity for the composite diaphragm of composite construction, can inhibit composite diaphragm
Polarization, while the resilience and damping characteristic of composite diaphragm can be promoted.
Adhesive layer can not only increase the cohesive force at interface, while composite diaphragm is made to have good damping and amortization.
Silastic-layer has excellent high- and low-temperature resistance characteristic, can make up thermoplastic elastic material in terms of heat resistance
Deficiency, while make composite diaphragm have it is good elasticity and water resistance.
The composite diaphragm that the utility model embodiment provides has both the property of three kinds of materials, has good rigidity and damping
Property, and with excellent resilience and temperature tolerance.
In addition, phenomena such as composite diaphragm is not susceptible to film folding, collapses, and water proofing property, good tolerance.
In addition, by the way that silicon rubber and thermoplastic elastomer (TPE) and adhesive are combined with each other, which is meeting F0
Under (lowest resonance frequency) requirement, what can be done is thinner, so as to which the oscillation space surplus for making composite diaphragm becomes larger, and makes compound shake
Film has high sensitivity.
In one example, composite diaphragm is included positioned at the top dome portion of center and the ring around the setting of top dome portion
Portion.The composite diaphragm of the utility model embodiment can set above-mentioned composite construction in top dome portion or ring portion；Can also be
The generally above-mentioned composite construction of composite diaphragm.
In other examples, composite diaphragm is in slab construction.The generally above-mentioned composite construction of the composite diaphragm.
Optionally, thermoplastic elastomer is by polyester-type thermoplastic elastomer (TPEE), polyurethane-type thermoplastic elastomer
(TPU), polyamide-type thermoplastic elastomer (TPAE), polystyrene-type thermoplastic elastomers (TPS), polyolefins thermoplastic bullet
Any one or more in property body (TPO), dynamic perduren and thermoplastic blends type thermoplastic elastomer (TPE) (TPV)
It is made.
It should be noted that when composite diaphragm include multiple thermoplastic elastomers when, each thermoplastic elastomer by
The above-mentioned list material of one or more is made.The material of each layer may be the same or different；Thickness, hardness of each layer etc.
It may be the same or different.Those skilled in the art can be configured according to actual needs.
Further, the hardness range of thermoplastic elastomer (TPE) is 40A-80D.The range causes composite diaphragm to have enough
Intensity and elasticity, to prevent irreversible deformation.
Preferably, thermoplastic elastomer includes surface treated connection surface.Connection surface is thermoplastic elastomer (TPE)
Layer for the surface that is connect with other film layers, for example, other film layers are silastic-layer or adhesive layer etc..As, thermoplastic
The connection surface of property elastomer layer is combined with each other with other film layers.
User may be used plasma, coating silane coupling agent the methods of to the connection surface of thermoplastic elastomer at
Reason, to improve the specific surface area of connection surface, so as to improve the bonding strength between thermoplastic elastomer and other film layers.
Optionally, silastic-layer is made by liquid silastic or firm silicone rubber.Two kinds of silicon rubber are raw material.
It when making, needs to add in the auxiliary agents such as vulcanizing agent or catalyst into raw material, so that raw material cures, so as to obtain silicon rubber
Layer.
Both raw material sources are extensive, at low cost.
Preferably, the thickness of composite diaphragm is 5-300um.The composite diaphragm of the thickness has best acoustic efficiency.
Fig. 1-5 is the sectional view of the composite diaphragm of embodiment according to the present utility model.
Fig. 1 is the composite diaphragm of three film layers.In this example embodiment, at least one layer of thermoplastic elastomer includes the first thermoplasticity
Elastomer layer 1.At least one layer of adhesive layer includes the first adhesive layer 4.At least one layer of silastic-layer includes the first silastic-layer
6.Wherein, the first thermoplastic elastomer 1, the first adhesive layer 4 and the first silastic-layer 6 are arranged in order, and are combined with each other.The
One adhesive layer 4 has the function of gluing, can improve the structural strength of composite diaphragm.
The composite diaphragm is simplest composite construction, and manufacture difficulty is small.The composite diaphragm has good rigidity and resistance
Buddhist nun's property, and with excellent resilience, water proofing property and temperature tolerance.
Fig. 2-3 is the composite diaphragm of four film layers.In this example embodiment, at least one layer of thermoplastic elastomer includes the first thermoplastic
Property elastomer layer 1.At least one layer of adhesive layer includes the first adhesive layer 4.At least one layer of silastic-layer includes the first silicon rubber
6 and second silastic-layer 7 of layer.
Wherein, the first thermoplastic elastomer 1, the first silastic-layer 6, the first adhesive layer 4 and the second silastic-layer 7 according to
Secondary arrangement, is combined with each other, as shown in Figure 2.Or
First silastic-layer 6, the first thermoplastic elastomer 1, the first adhesive layer 4 and the second silastic-layer 7 are arranged successively
Row, are combined with each other, as shown in Figure 3.
Those skilled in the art can set the thickness of each film layer according to actual needs.
The composite diaphragm has good rigidity and damping and amortization, and with excellent resilience, water proofing property and temperature tolerance.
Fig. 4-5 is the composite diaphragm of five film layers.In this example embodiment, as shown in figure 4, at least one layer of thermoplastic elastomer packet
Include the first thermoplastic elastomer 1 and the second thermoplastic elastomer 2.At least one layer of adhesive layer includes the first adhesive layer 4
With the second adhesive layer 5.At least one layer of silastic-layer includes the first silastic-layer 6.
Wherein, the first thermoplastic elastomer 1, the first adhesive layer 4, the first silastic-layer 6,5 and of the second adhesive layer
Second thermoplastic elastomer 2 is arranged in order, and is combined with each other.
In another example, as shown in figure 5, at least one layer of thermoplastic elastomer includes the first thermoplastic elastomer
1 and second thermoplastic elastomer 2.At least one layer of adhesive layer includes the first adhesive layer 4.At least one layer of silastic-layer includes
First silastic-layer 6 and the second silastic-layer 7.
Wherein, the first thermoplastic elastomer 1, the first silastic-layer 6, the first adhesive layer 4,7 and of the second silastic-layer
Second thermoplastic elastomer 2 is arranged in order, and is combined with each other.
Optionally, the first thermoplastic elastomer 1 and the second thermoplastic elastomer 2 are made by different materials.
Those skilled in the art can set the thickness of each film layer according to actual needs.
Above-mentioned composite diaphragm has good rigidity and damping and amortization, and with excellent resilience, water proofing property and heatproof
Property.
The structure of composite diaphragm is not limited to above-mentioned several, and those skilled in the art can be configured according to actual needs.
Above-mentioned composite construction is also used as several layers of in MULTILAYER COMPOSITE vibrating diaphragm.
Another embodiment according to the present utility model provides a kind of preparation side of the composite diaphragm for sound-producing device
Method.As shown in fig. 6, the preparation method includes：
S1, by least one layer of thermoplastic elastomer, at least one layer of adhesive layer and at least one layer of unvulcanized silicon rubber
Layer is arranged according to setting sequence, to form compound material band, wherein, adhesive layer is located at the middle layer of compound material band；
S2, vulcanize unvulcanized silastic-layer, and each film layer of compound material band is answered using hot-forming method
It is combined.
Compared with the method for injection molding, this method is low to production equipment, such as the required precision of mold, and use is existing
Hot-press forming device can be prepared.
Simple for process, the production efficiency height of the preparation method, it is at low cost, suitable for large-scale production.
Preferably, hot-forming temperature is 60-220 DEG C.Under the forming temperature, between each film layer of composite diaphragm
Binding force it is big.The intensity of composite diaphragm is high, good tolerance.
In one example, S1 steps include it is following step by step：
S101, adhesive layer is placed on thermoplastic elastomer by the way of coating, curtain coating or calendering, to form the
One complex matrix layer；
S102, by the way of lamination, by unvulcanized silastic-layer and other thermoplastic elastomers and/or its
His adhesive layer is placed on the first complex matrix layer, to form the first compound material band.In this step, adhesive layer is located at first
The middle layer of compound material band.
In S2 steps, the first compound material band is placed on the die holder of composite diaphragm, is made not by the way of hot-forming
The silastic-layer vulcanization of vulcanization, and multiple film layers is made to link together, to form composite diaphragm.
In another example, S1 steps include it is following step by step：
S111, unvulcanized silastic-layer is placed on thermoplastic elastomer by the way of coating, curtain coating or calendering,
To form the second complex matrix layer；
S112, by the way of lamination, by adhesive layer and other thermoplastic elastomers and/or other are unvulcanized
Silastic-layer be placed on the second complex matrix layer, to form the second compound material band.In this step, adhesive layer is located at second
The middle layer of compound material band.
In S2 steps, the second compound material band is placed on the die holder of composite diaphragm, is made not by the way of hot-forming
The silastic-layer vulcanization of vulcanization, and multiple film layers is made to link together, to form composite diaphragm.
In another example, S1 steps include it is following step by step：
S121, adhesive layer is placed on thermoplastic elastomer by the way of coating, curtain coating or calendering, to form the
One complex matrix layer；
S122, unvulcanized silastic-layer is placed on thermoplastic elastomer by the way of coating, curtain coating or calendering,
To form the second complex matrix layer；
S123, by the way of lamination, by the second complex matrix layer, other thermoplastic elastomers, other adhesive layers,
At least one of other unvulcanized silastic-layers are placed on the first composite base, to form third compound material band.In the step
In rapid, third compound material band includes at least the first compound body layer and the second complex matrix layer, and adhesive layer is located at third
The middle layer of compound material band.
In S2 steps, third compound material band is placed on the die holder of composite diaphragm, is made not by the way of hot-forming
The silastic-layer vulcanization of vulcanization, and multiple film layers is made to link together, to form composite diaphragm.
Above-mentioned preparation method is simple for process, easy to operate, and can prepare and form composite diaphragm provided by the utility model.
The preparation method of the utility model is not limited to more than several embodiments, and those skilled in the art can carry out according to actual needs
Setting.
Although some specific embodiments of the utility model are described in detail by example, this field
It is to be understood by the skilled artisans that example above merely to illustrating 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
It modifies.The scope of the utility model is defined by the following claims.
Claims (9)
1. a kind of composite diaphragm for sound-producing device, which is characterized in that the composite diaphragm is combined by multiple film layers, institute
It states multiple film layers and includes at least one layer of thermoplastic elastomer, at least one layer of adhesive layer and at least one layer of silastic-layer, wherein,
The adhesive layer is located at the middle layer of the composite diaphragm.
2. composite diaphragm according to claim 1, which is characterized in that at least one layer thermoplastic elastomer includes the
One thermoplastic elastomer, at least one layer adhesive layer include the first adhesive layer, at least one layer silastic-layer packet
The first silastic-layer is included,
Wherein, first thermoplastic elastomer, first adhesive layer and first silastic-layer are arranged in order, multiple
It is combined.
3. composite diaphragm according to claim 1, which is characterized in that at least one layer thermoplastic elastomer includes the
One thermoplastic elastomer, at least one layer adhesive layer include the first adhesive layer, at least one layer silastic-layer packet
The first silastic-layer and the second silastic-layer are included,
Wherein, first thermoplastic elastomer, first silastic-layer, first adhesive layer and second silicon
Rubber layer is arranged in order, and is combined with each other；Or
First silastic-layer, first thermoplastic elastomer, first adhesive layer and second silicon rubber
Layer is arranged in order, and is combined with each other.
4. composite diaphragm according to claim 1, which is characterized in that at least one layer thermoplastic elastomer includes the
One thermoplastic elastomer and the second thermoplastic elastomer, at least one layer adhesive layer include the first adhesive layer and the
Two adhesive layers, at least one layer silastic-layer include the first silastic-layer,
Wherein, the first thermoplastic elastomer, first adhesive layer, first silastic-layer, second adhesive
Layer and second thermoplastic elastomer are arranged in order, and are combined with each other.
5. composite diaphragm according to claim 1, which is characterized in that at least one layer thermoplastic elastomer includes
First thermoplastic elastomer and the second thermoplastic elastomer, at least one layer adhesive layer include the first adhesive layer,
At least one layer silastic-layer includes the first silastic-layer and the second silastic-layer,
Wherein, first thermoplastic elastomer, first silastic-layer, first adhesive layer, second silicon
Rubber layer and second thermoplastic elastomer are arranged in order, and are combined with each other.
6. the composite diaphragm described in any one in claim 1-5, which is characterized in that the thermoplastic elastomer
By polyester-type thermoplastic elastomer, polyurethane-type thermoplastic elastomer, polyamide-type thermoplastic elastomer, polystyrene type thermoplastic
In property elastomer, polyolefins thermoplastic elastomer, dynamic perduren and thermoplastic blends type thermoplastic elastomer (TPE)
Any one be made.
7. the composite diaphragm described in any one in claim 1-5, which is characterized in that the thermoplastic elastomer
Including surface treated connection surface.
8. the composite diaphragm described in any one in claim 1-5, which is characterized in that the silastic-layer is by liquid
Silicon rubber or firm silicone rubber are made.
9. the composite diaphragm described in any one in claim 1-5, which is characterized in that the composite diaphragm passes through heat
It is molded to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034976.6U CN207466019U (en) | 2017-08-17 | 2017-08-17 | For the composite diaphragm of sound-producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721034976.6U CN207466019U (en) | 2017-08-17 | 2017-08-17 | For the composite diaphragm of sound-producing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207466019U true CN207466019U (en) | 2018-06-08 |
Family
ID=62268123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721034976.6U Active CN207466019U (en) | 2017-08-17 | 2017-08-17 | For the composite diaphragm of sound-producing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207466019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200336852A1 (en) * | 2017-12-22 | 2020-10-22 | Goertek Inc. | Vibrating diaphragm for sound generating device, method for preparing vibrating diaphragm, and sound generating device |
-
2017
- 2017-08-17 CN CN201721034976.6U patent/CN207466019U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200336852A1 (en) * | 2017-12-22 | 2020-10-22 | Goertek Inc. | Vibrating diaphragm for sound generating device, method for preparing vibrating diaphragm, and sound generating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207475849U (en) | For the composite diaphragm of sound-producing device | |
| CN107538838A (en) | Composite diaphragm for sound-producing device and preparation method thereof | |
| US10856083B2 (en) | Diaphragm and miniature speaker comprising same | |
| US5259036A (en) | Diaphragm for dynamic microphones and methods of manufacturing the same | |
| CN102823274A (en) | Micro-speaker oscillation plate edge material, micro-speaker oscillation plate, micro-speaker, and electronic apparatus | |
| CN206658291U (en) | Vibrating diaphragm and the minitype acoustic generator provided with the vibrating diaphragm | |
| CN207070314U (en) | Vibrating diaphragm, loudspeaker monomer and electronic equipment for loudspeaker | |
| CN108859296B (en) | Composite membrane structure, vibrating diaphragm and sound production device | |
| CN207466019U (en) | For the composite diaphragm of sound-producing device | |
| CN106560305A (en) | Loudspeaker Membrane And Method Of Making Same Via Spray Coating Process | |
| KR100297466B1 (en) | Manufacturing method of diaphragm for use in electroacoustic transducers | |
| WO2011065795A2 (en) | Diaphragm for sound converter | |
| CN113423046B (en) | Loudspeaker diaphragm, loudspeaker diaphragm preparation method and sound production device | |
| CN112752200B (en) | Coupling structure for a membrane of a receiver | |
| CN110677789A (en) | Composite vibration plate and loudspeaker using same | |
| CN207135272U (en) | Vibrating diaphragm and the loudspeaker provided with the vibrating diaphragm | |
| CN112693200A (en) | Vibrating diaphragm, preparation method thereof and acoustoelectric device | |
| CN110958544B (en) | Composite vibrating diaphragm for sound production device and sound production device | |
| CN110972034B (en) | Vibrating diaphragm and sound generating device | |
| CN218416655U (en) | Rubber vibrating diaphragm | |
| CN106954148A (en) | A kind of sound-producing device and electronic equipment | |
| CN208489979U (en) | A kind of vibrating diaphragm | |
| JP2013236371A (en) | Diaphragm for speaker integrally formed with different degrees of rigidity in one polymeric film | |
| CN206932394U (en) | Vibrating diaphragm and the minitype acoustic generator provided with the vibrating diaphragm | |
| CN215379242U (en) | Loudspeaker sound production device without adhesive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |