CN206775725U - The electro-acoustic element of vibrating diaphragm and the application vibrating diaphragm - Google Patents
The electro-acoustic element of vibrating diaphragm and the application vibrating diaphragm Download PDFInfo
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- CN206775725U CN206775725U CN201720378572.2U CN201720378572U CN206775725U CN 206775725 U CN206775725 U CN 206775725U CN 201720378572 U CN201720378572 U CN 201720378572U CN 206775725 U CN206775725 U CN 206775725U
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- vibrating diaphragm
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Abstract
The utility model discloses the electro-acoustic element of a kind of vibrating diaphragm and the application vibrating diaphragm, vibrating diaphragm includes top dome and the ring set around the top dome, the top dome includes intermediate layer, the substrate layer being attached to respectively on the intermediate layer opposite sides face, the substrate layer is carbon fiber enhancement resin base composite material layer, and the intermediate layer is froth bed.Vibrating diaphragm of the present utility model has a high ratio modulus, high specific strength, the characteristic of low-density, can significantly improve sensitivity, heat resistance, high frequency characteristics and the reliability of product.
Description
Technical field
It the utility model is related to the electro-acoustic element of a kind of vibrating diaphragm and the application vibrating diaphragm.
Background technology
With the fast development of electronic information technology, increasing microphone device is applied in each electronic product, especially
It is the mobile communication equipment of widely people's application, and people are not only concerned about that it is miniaturized, is multi-functional, more require its sound effect height
It is quality, undistorted.And core component of the vibrating diaphragm as microphone device, its quality designed directly affect the property of electro-acoustic element
Energy.
In order to improve the oscillation intensity of the vibrating diaphragm, the vibrating diaphragm also includes top dome, the top dome generally use individual layer
The three-layer composite structure of plastic material either metal level+froth bed+metal level.The specific stiffness of this structure is smaller, zund-Burguet apparatus
Part dither scope is small, quality weight, and the sensitivity of electro-acoustic element is low.
Therefore, it is necessary that providing a kind of new vibrating diaphragm solves the above problems in fact.
Utility model content
The utility model is in order to solve the above technical problems, and provide a kind of new vibrating diaphragm and the zund-Burguet apparatus using the vibrating diaphragm
Part, has a high ratio modulus, high specific strength, the characteristic of low-density, can significantly improve the sensitivity of product, heat resistance, high frequency
Characteristic and reliability, make the combination property of electro-acoustic element vibrating diaphragm more excellent.Concrete scheme is：
A kind of vibrating diaphragm, it includes top dome and the ring set around the top dome, and the top dome includes intermediate layer, pasted respectively
The substrate layer in the intermediate layer opposite sides face is attached to, the substrate layer is carbon fiber enhancement resin base composite material layer, described
Intermediate layer is froth bed.
Preferably, the froth bed is any one in polyimide foam layer, polyester form layer or cell foams layer.
Preferably, the intermediate layer is fixedly connected with the substrate layer by bonding agent.
Preferably, the substrate layer includes the first base material layer and the second substrate layer for being located at intermediate layer two sides respectively, institute
It is identical with the thickness of second substrate layer to state the first base material layer.
Preferably, the substrate layer includes the first base material layer and the second substrate layer for being located at intermediate layer both sides respectively, described
The first base material layer is different from the thickness of second substrate layer.
Preferably, the thickness of the first base material layer and/or second substrate layer is 20-120 μm.
Preferably, the first base material layer and/or second substrate layer are to be arranged in the same direction by unidirectionally extended carbon fiber bundle
The single layer structure that cloth is formed.
Preferably, the first base material layer and/or second substrate layer include the first carbon fiber of alternately laminated setting
Layer and the second carbon fiber layer, first carbon fiber layer and second carbon fiber layer are in by unidirectionally extended carbon fiber bundle respectively
The single layer structure that arrangement is formed, the carbon of the bearing of trend of the carbon fiber bundle of first carbon fiber layer and second carbon fiber layer
The angle of the bearing of trend of fibre bundle is 0 ° to 90 °.
Preferably, the first base material layer and/or second substrate layer are the carbon cloth that carbon fiber bundle is knitted to form
Layer, the braiding structure of the carbon fibre cloth layer is plain weave structure, twill weave or satin weave structure.
Preferably, the first base material layer and/or second substrate layer only include one layer of carbon fibre cloth layer；Or
The first base material layer and/or second substrate layer include the carbon fibre cloth layer that at least two-layer laminate is set.
The utility model also includes a kind of electro-acoustic element, and it includes vibrating diaphragm as described above.
In the utility model, the density of top dome reduces, and quality mitigates, and improves the sensitivity of vibrating diaphragm, improves transient state spy
Property.The presence of middle foam damping layer inhibits diaphagras, effective to improve high-frequency resonant peak.Vibrating diaphragm has Gao Bimo
Measure, high specific strength, the characteristic of low-density, can significantly improve sensitivity, heat resistance, high frequency characteristics and the reliability of product.
Brief description of the drawings
Fig. 1 is the structural representation of vibrating diaphragm of the present utility model；
Fig. 2 is the roof structure schematic diagram of vibrating diaphragm of the present utility model；
Fig. 3 is the structural representation of the preferred embodiment of the first base material layer of vibrating diaphragm of the present utility model；
Fig. 4 is the structural representation of another preferred embodiment of the first base material layer of vibrating diaphragm of the present utility model.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.The utility model provides one kind and is applied to electro-acoustic element
In vibrating diaphragm and application the vibrating diaphragm electro-acoustic element.
As shown in figure 1, vibrating diaphragm 100 includes top dome 10 and the ring 20 set around top dome 10.
Ring 20 includes centrally located flat part 21, the kink 22 that is set around flat part 21 and from kink 22
Extension is used for the fixed part 23 fixed with extraneous overlap joint.
Top dome 10 is sticked on the flat part 21 of ring 20, for strengthening the rigidity of the vibration of vibrating diaphragm 100.
Shown in reference picture 2, the utility model top dome 10 includes intermediate layer 102 and to be attached to intermediate layer 102 respectively relative
Substrate layer in upper and lower both side surface.Intermediate layer 102 is froth bed, is specifically as follows polyimide foam layer, polyester form layer
Or any one in cell foams layer.Substrate layer is carbon fiber enhancement resin base composite material layer.
Substrate layer includes second positioned at the first base material layer 101 of the lower surface of intermediate layer 102 and positioned at intermediate layer upper surface
Substrate layer 103.Surface of the first base material layer 101 away from the side of intermediate layer 102 is attached on the flat part 21 of ring 20.
Can be by being pasted between intermolecular force between intermediate layer 102 and the substrate layer 103 of the first base material layer 101 and second
Close, a glue-line can also be set, be adhesively fixed by bonding agent.Specifically in the present embodiment, to pass through macromolecule gluing
Agent is bonded.After intermediate layer 102 and substrate layer are fixed together, the first base material layer 101 as the bottom of top dome 10 and ring 20 it
Between pass through the glued diaphragm structure being integrally fixed.
High based on carbon fiber enhancement resin base composite material specific strength and specific modulus, the characteristic of low-density, substrate layer uses
This material can effectively mitigate the quality of top dome, there is provided the sensitivity of electro-acoustic element and the scope for widening dither, significantly
Improve sensitivity, heat resistance, high frequency characteristics and the reliability of product
Intermediate layer 102 can not only play a part of the fixed substrate layer 103 of the first base material layer 101 and second, and middle
Layer uses froth bed, and its small cost of light weight density is low, can improve the overall vibration performance of vibrating diaphragm, mitigates the quality of top dome 10
And reduce cost.
Between the substrate layer 103 of the first base material layer 101 and second can with thickness it is identical can also thickness it is different, specifically can root
It is adjusted according to diaphragm oscillations demand.Preferably, the thickness of the first base material layer 101 is 20-120 μm, the thickness of the second substrate layer 103
Degree can be identical with the first base material layer 101.
Further, as shown in figure 3, the first base material layer 101 is to include the first carbon fiber layer 11 and be stacked first
The second carbon fiber layer 12 on carbon fiber layer 11, wherein the first carbon fiber layer 11 and the second carbon fiber layer 12 are by unidirectionally extended
Carbon fiber bundle arranges to be formed in the same direction.In the present embodiment, the carbon fiber bundle of the first carbon fiber layer 11 and the second carbon fiber layer 12
Angle between bearing of trend is in 90 °, it should be understood that in other preferred embodiments of the present utility model, the first carbon fiber layer 11
Angle between the bearing of trend of the carbon fiber bundle of the second carbon fiber layer 12 can be other 0 ° to 90 ° any angles.This
Outside, the first base material layer 101 can also be the single layer structure formed of being arranged in the same direction by unidirectionally extended carbon fiber bundle.Second substrate layer
103 can use identical structure with the first base material layer 101, and therefore not to repeat here.
As shown in figure 4, in another preferred embodiment of the present utility model, the first base material layer 101 ' is that carbon fiber bundle is mutual
The carbon fibre cloth layer formed is cross-woven, the braiding structure of the carbon fibre cloth layer can be plain weave structure, twill weave
Or satin weave structure.Similar with the embodiment shown in Fig. 3, the first base material layer 101 ' can be single layer structure either at least two
The composite construction that the layer carbon cloth layer stackup is formed.Second substrate layer can also use identical with the first base material layer 101 '
Structure, therefore not to repeat here.
In addition, the invention also discloses a kind of electro-acoustic element using above-mentioned vibrating diaphragm.In the utility model, top dome
Density reduces, and quality mitigates, and improves the sensitivity of vibrating diaphragm, improves transient response.The presence suppression of middle foam damping layer
Diaphagras has been made, it is effective to improve high-frequency resonant peak.Vibrating diaphragm has a high ratio modulus, high specific strength, the characteristic of low-density, can be with
Significant sensitivity, heat resistance, high frequency characteristics and the reliability for improving product.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is,
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (11)
1. a kind of vibrating diaphragm, it includes top dome and the ring set around the top dome, it is characterised in that the top dome includes centre
Layer, the substrate layer for being attached to the intermediate layer opposite sides face respectively, the substrate layer is carbon fiber enhancement resin base composite wood
The bed of material, the intermediate layer are froth bed.
2. vibrating diaphragm according to claim 1, it is characterised in that the froth bed is polyimide foam layer, polyester form
Layer or cell foams layer in any one.
3. vibrating diaphragm according to claim 2, it is characterised in that the intermediate layer is fixed with the substrate layer by bonding agent
Connection.
4. vibrating diaphragm according to claim 3, it is characterised in that the substrate layer is included respectively positioned at intermediate layer two sides
The first base material layer and the second substrate layer, the first base material layer are identical with the thickness of second substrate layer.
5. vibrating diaphragm according to claim 3, it is characterised in that the substrate layer is included respectively positioned at intermediate layer two sides
The first base material layer and the second substrate layer, the first base material layer are different from the thickness of second substrate layer.
6. the vibrating diaphragm according to claim 4 or 5, it is characterised in that the first base material layer and/or second substrate layer
Thickness be 20-120 μm.
7. the vibrating diaphragm according to claim 4 or 5, it is characterised in that the first base material layer and/or second substrate layer
For the single layer structure that is formed of being arranged in the same direction by unidirectionally extended carbon fiber bundle.
8. the vibrating diaphragm according to claim 4 or 5, it is characterised in that the first base material layer and/or second substrate layer
The first carbon fiber layer and the second carbon fiber layer including alternately laminated setting, first carbon fiber layer and second carbon fiber
The single layer structure that layer is formed in being arranged by unidirectionally extended carbon fiber bundle respectively, the carbon fiber bundle of first carbon fiber layer prolong
It is 0 ° to 90 ° to stretch direction and the angle of the bearing of trend of the carbon fiber bundle of second carbon fiber layer.
9. the vibrating diaphragm according to claim 4 or 5, it is characterised in that the first base material layer and/or second substrate layer
Intersect the carbon fibre cloth layer being knitted to form for carbon fiber bundle, and the braiding structure of the carbon fibre cloth layer is plain weave knot
Structure, twill weave or satin weave structure.
10. vibrating diaphragm according to claim 9, it is characterised in that the first base material layer and/or second substrate layer are only
Including one layer of carbon fibre cloth layer；Or the first base material layer and/or second substrate layer include at least two-layer laminate
The carbon fibre cloth layer set.
11. a kind of electro-acoustic element, it is characterised in that including the vibrating diaphragm as described in claim 1 to 10 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720378572.2U CN206775725U (en) | 2017-04-12 | 2017-04-12 | The electro-acoustic element of vibrating diaphragm and the application vibrating diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720378572.2U CN206775725U (en) | 2017-04-12 | 2017-04-12 | The electro-acoustic element of vibrating diaphragm and the application vibrating diaphragm |
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| Publication Number | Publication Date |
|---|---|
| CN206775725U true CN206775725U (en) | 2017-12-19 |
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|---|---|---|---|
| CN201720378572.2U Expired - Fee Related CN206775725U (en) | 2017-04-12 | 2017-04-12 | The electro-acoustic element of vibrating diaphragm and the application vibrating diaphragm |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091417A (en) * | 2017-12-22 | 2018-05-29 | 歌尔股份有限公司 | Flexible conductive film, sound-producing device and wearable device |
| CN109788404A (en) * | 2018-12-29 | 2019-05-21 | 瑞声科技（南京）有限公司 | Vibrating diaphragm and microphone device |
| CN109819379A (en) * | 2018-12-29 | 2019-05-28 | 瑞声科技（南京）有限公司 | Vibrating diaphragm and microphone device |
| CN110561847A (en) * | 2019-08-02 | 2019-12-13 | 歌尔股份有限公司 | Vibration board and sound generating mechanism |
| CN111417063A (en) * | 2019-12-26 | 2020-07-14 | 瑞声科技(新加坡)有限公司 | Carbon fiber dome, preparation method thereof and loudspeaker |
| CN111954126A (en) * | 2020-06-30 | 2020-11-17 | 瑞声新能源发展(常州)有限公司科教城分公司 | Carbon fiber dome and loudspeaker |
| WO2022000921A1 (en) * | 2020-06-30 | 2022-01-06 | 歌尔股份有限公司 | Diaphragm and sound generation apparatus using same |
-
2017
- 2017-04-12 CN CN201720378572.2U patent/CN206775725U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091417A (en) * | 2017-12-22 | 2018-05-29 | 歌尔股份有限公司 | Flexible conductive film, sound-producing device and wearable device |
| CN108091417B (en) * | 2017-12-22 | 2020-02-21 | 歌尔股份有限公司 | Flexible conductive film, sound generating device and wearable equipment |
| CN109788404A (en) * | 2018-12-29 | 2019-05-21 | 瑞声科技（南京）有限公司 | Vibrating diaphragm and microphone device |
| CN109819379A (en) * | 2018-12-29 | 2019-05-28 | 瑞声科技（南京）有限公司 | Vibrating diaphragm and microphone device |
| CN110561847A (en) * | 2019-08-02 | 2019-12-13 | 歌尔股份有限公司 | Vibration board and sound generating mechanism |
| CN110561847B (en) * | 2019-08-02 | 2022-04-05 | 歌尔股份有限公司 | Vibration board and sound generating mechanism |
| CN111417063A (en) * | 2019-12-26 | 2020-07-14 | 瑞声科技(新加坡)有限公司 | Carbon fiber dome, preparation method thereof and loudspeaker |
| CN111417063B (en) * | 2019-12-26 | 2022-04-12 | 瑞声科技(新加坡)有限公司 | Carbon fiber dome, preparation method thereof and loudspeaker |
| CN111954126A (en) * | 2020-06-30 | 2020-11-17 | 瑞声新能源发展(常州)有限公司科教城分公司 | Carbon fiber dome and loudspeaker |
| WO2022000921A1 (en) * | 2020-06-30 | 2022-01-06 | 歌尔股份有限公司 | Diaphragm and sound generation apparatus using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 |