CN207124738U - Reinforcement part and oscillating plate for sound-producing device - Google Patents
Reinforcement part and oscillating plate for sound-producing device Download PDFInfo
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- CN207124738U CN207124738U CN201720974851.5U CN201720974851U CN207124738U CN 207124738 U CN207124738 U CN 207124738U CN 201720974851 U CN201720974851 U CN 201720974851U CN 207124738 U CN207124738 U CN 207124738U
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- aramid fiber
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- fiber layer
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Abstract
It the utility model is related to a kind of reinforcement part for sound-producing device and oscillating plate.The reinforcement part includes at least one layer of aramid fiber layer, and the aramid fiber layer includes unidirectionally extended aramid fiber, and the aramid fiber of at least one layer of aramid fiber layer is arranged along identical bearing of trend.A technical problem to be solved in the utility model is that the aramid fiber of at least one layer of aramid fiber layer of existing reinforcement part causes the high frequency performance of reinforcement part to lift unobvious along different angle arrangement.One purposes of utility model is to be used for vibrating diaphragm.
Description
Technical field
Technical field of composite materials is the utility model is related to, is filled more specifically, the utility model is related to a kind of sounding that is used for
The reinforcement part put and oscillating plate.
Background technology
Had well by reinforcement part (for example, top dome) oscillating plate formed be bonded with vibrating diaphragm of high ratio modulus, high rigidity
High and low frequency characteristic.
Aramid fiber class material has the characteristics of high-modulus, low-density.Because such material has an anisotropy, therefore
When making oscillating plate, majority uses the structure type that different fiber angles are symmetrically laid.
However, the thickness and quality of the oscillating plate of this kind of structure type are larger, specific modulus is relatively low, and this causes high frequency performance
Lift unobvious.These defects greatly limit use of the aramid fiber material in oscillating plate.
Utility model content
A purpose of the present utility model is a kind of new solution of the reinforcement part for sound-producing device.
According to one side of the present utility model, there is provided a kind of reinforcement part for sound-producing device.The reinforcement part is included extremely
Few one layer of aramid fiber layer, the aramid fiber layer include unidirectionally extended aramid fiber, at least one layer of aramid fiber layer
Aramid fiber along identical bearing of trend arrange.
Alternatively, in addition to intermediate core layer, the intermediate core layer is expanded material, and the aramid fiber layer is multilayer, institute
The upper and lower both sides that aramid fiber layer is separately positioned on the intermediate core layer are stated, positioned at the aramid fiber layer of the upside and position
Aramid fiber layer in the downside is arranged symmetrically relative to the intermediate core layer.
Alternatively, using the center of the through-thickness of the reinforcement part as starting point, positioned at the upside of the starting point
I-th layer of aramid fiber layer and i-th layer of aramid fiber layer of the downside positioned at the starting point have identical face close
Degree, wherein, i is natural number.
Alternatively, the reinforcement part include be oppositely arranged two first while and at be oppositely arranged two second, two
First side is parallel to each other, and two second sides are parallel to each other, described first while length be more than described second while length
Degree, the aramid fiber extend perpendicularly to first side.
Alternatively, in addition to multiple intermediate core layers, the intermediate core layer is expanded material, the aramid fiber layer with it is described
Intermediate core layer is arranged at intervals, and the first top layer and the second top layer of the reinforcement part are the aramid fiber layer.
Alternatively, the intermediate core layer is by any one in PMI expanded materials, PI expanded materials and polyesters expanded material
Kind is made.
Alternatively, the aramid fiber layer is made by aramid fiber prepreg, the tree of the aramid fiber prepreg
Any one of fat in epoxy resin, phenolic resin and bimaleimide resin.
Alternatively, the reinforcement part is made by compression molding or vacuum-bag process.
According to other side of the present utility model, there is provided a kind of oscillating plate.The oscillating plate includes vibrating diaphragm and this practicality
The reinforcement part of new offer, the reinforcement part are arranged on the central part of the vibrating diaphragm.
Alternatively, the vibrating diaphragm is made by engineering plastics or thermoplastic elastic material, or
The vibrating diaphragm includes at least three layers, wherein, two top layers of the vibrating diaphragm are by engineering plastics or thermoplastic elastomer (TPE)
Material is made, and at least one intermediate layer is made by glued membrane；
The reinforcement part is bonded in the central part of the vibrating diaphragm.
One of the present utility model has technical effect that, the bearing of trend of the aramid fiber at least one layer of aramid fiber layer
It is identical, can so give full play to fiber-like material radial mechanical intensity it is high the characteristics of.The rigidity of the reinforcement part is high, thickness
It is small, density is small, specific modulus is big, the high frequency performance of sound-producing device can be significantly improved.
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
The accompanying drawing of a part for constitution instruction describes embodiment of the present utility model, and uses together with the description
In explanation principle of the present utility model.
Fig. 1-6 is the sectional view according to the reinforcement part of embodiment of the present utility model.
Fig. 7 is the top view according to the reinforcement part of embodiment of the present utility model.
Description of reference numerals：
11：Aramid fiber layer；12：Intermediate core layer；13：First side；14：Second side；15：Aramid fiber.
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 and equipment known to person of ordinary skill in the relevant, but in appropriate situation
Under, the technology and equipment 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.
According to one embodiment of the present utility model, there is provided a kind of reinforcement part for sound-producing device.As Fig. 1-7 institute
Show, reinforcement part includes at least one layer of aramid fiber layer 11.Aramid fiber layer 11 includes unidirectionally extended aramid fiber 15.This is at least
Aramid fiber 15 in one layer of aramid fiber layer 11 is arranged along identical bearing of trend.
Specifically, aramid fiber layer 11 is made by aramid fiber prepreg.It is fine that aramid fiber prepreg includes aramid fiber
Dimension 15 and resin.Aramid fiber 15 is immersed in resin.After resin solidification, aramid fiber prepreg forms aramid fiber layer 11.
In addition, if multilayer aramid fiber layer 11, then multiple aramid fiber layers 11 are combined together, and 11, multilayer aramid fiber layer
Bearing of trend it is identical.It is unidirectionally extended refer to the aramid fiber 15 in same layer aramid fiber layer 11 bearing of trend it is consistent.Extremely
The bearing of trend of the aramid fiber 15 of few one layer of aramid fiber layer 11 and the angle on the same side of reinforcement part are 0-90 °.Ability
Field technique personnel can set the angle according to being actually needed.The surface of aramid fiber layer 11 is perpendicular to the thickness side of reinforcement part
To.
In embodiment of the present utility model, the bearing of trend phase of the aramid fiber 15 at least one layer of aramid fiber layer 11
Together, can so give full play to fiber-like material radial mechanical intensity it is high the characteristics of.The rigidity of the reinforcement part is high, thickness is small,
Density is small, specific modulus is big, can significantly improve the high frequency performance of sound-producing device.
Alternatively, the resin of aramid fiber prepreg is in epoxy resin, phenolic resin and bimaleimide resin
Any one.The wide material sources of above-mentioned resin material, cost is low, and the rigidity of obtained reinforcement part is high.Those skilled in the art
The curing mode that this area can be selected conventional solidifies above-mentioned resin material.For example, add curing agent, it is catalyst cured or
It is heating and curing.
Preferably, the thickness of aramid fiber prepreg is 0.015mm-0.045mm.Because the thickness of reinforcement part is usually
0.05mm-0.3mm, therefore require that aramid fiber prepreg has relatively thin thickness.Above-mentioned thickness range can meet the thickness of reinforcement part
Degree requires, and the aramid fiber layer formed by above-mentioned aramid fiber prepreg, the benefit that can be formed the aramid fiber layer
Strong portion is thinner, can improve the high frequency performance of sound-producing device.
Preferably, the surface density of aramid fiber prepreg is 15g/m2-70g/m2.The surface density scope can meet reinforcement part
Lightweight, low-density, high ratio modulus, the requirement of high rigidity.
In one example, as shown in fig. 7, reinforcement part includes two the first sides 13 and be oppositely arranged two being oppositely arranged
Individual second side 14.Two the first sides 13 are parallel to each other.Two the second sides 14 are parallel to each other.First when 13 length is more than second
14 length.Aramid fiber 15 extends perpendicularly to the first side 13.In this example embodiment, reinforcement part is rectangle or other are flat
Row quadrangle.
This setup make it that the quality of reinforcement part is lower, rigidity is higher, can more give full play to the footpath of fiber-like material
To mechanical strength it is high the characteristics of.
In addition, this setup can greatly promote the high frequency performance of sound-producing device.
In other examples, reinforcement part is circular or square.In two kinds of shapes, the extension side of aramid fiber 15
To not limiting.
Fig. 1-6 is the sectional view according to the reinforcement part of embodiment of the present utility model.
In one example, as shown in figure 1, reinforcement part is made by the aramid fiber layer 11 of individual layer.The virtue of the individual layer
The aramid fiber 15 of synthetic fibre fibrous layer 11 is with setting the angle on side as 0-90 °.Preferably, as shown in fig. 7, aramid fiber 15 prolongs
Direction is stretched perpendicular to the first side 13.
In one example, as shown in Fig. 2 reinforcement part is made by two layers of aramid fiber layer 11.Two layers of the aramid fiber
The bearing of trend of fiber 15 is identical.
Those skilled in the art can be according to the setting for being actually needed the bearing of trend for setting aramid fiber 15 and reinforcement part
The angle on side.
In one example, as shown in figure 4, reinforcement part is made by four layers of aramid fiber layer 11.Four layers of the aramid fiber
The bearing of trend of fiber 15 is identical.
Those skilled in the art can be according to the setting for being actually needed the bearing of trend for setting aramid fiber 15 and reinforcement part
The angle on side.
Preferably, the surface density of each layer aramid fiber layer 11 is identical.It so can guarantee that the quality of reinforcement part is homogeneous.
In one example, as shown in Figures 3 and 5, reinforcement part also includes intermediate core layer 12.Intermediate core layer 12 is foaming material
Material.Aramid fiber layer is multilayer.Aramid fiber layer 11 is separately positioned on the upper and lower both sides of intermediate core layer 12.Positioned at upside
Aramid fiber layer 11 is arranged symmetrically with the aramid fiber layer 11 positioned at downside relative to intermediate core layer 12.
Upper and lower side represents the relative position relative to intermediate core layer 12.Be arranged symmetrically and refer to, intermediate core layer 12 it is upper and lower
The number of plies of the aramid fiber layer 11 of side is identical, and is located at the aramid fiber layer 11 of the identical number of plies of upper and lower side by phase same material
The aramid fiber layer 11 of (for example, material all same of surface density, thickness and resin) is made.In this way, can protect
It is identical to demonstrate,prove deformation of the reinforcement part in upper and lower vibration, so that sound-producing device has good vibrating effect.
For example, the upside of intermediate core layer 12 is provided with three layers of aramid fiber layer 11, then the downside of intermediate core layer 12 is also provided with
There are three layers of aramid fiber layer 11.Upside first layer is identical with the material of the aramid fiber layer 11 of downside first layer；The upside second layer
It is identical with the material of the aramid fiber layer 11 of the downside second layer；Upside third layer and the material of the aramid fiber layer 11 of downside third layer
Matter is identical.
In addition, expanded material can significantly reduce the overall density of reinforcement part, and the resistance of reinforcement part can be significantly improved
Buddhist nun.
Alternatively, intermediate core layer 12 is by any one in PMI expanded materials, PI expanded materials and polyesters expanded material
It is made.These materials can be closely linked with aramid fiber layer 11.
In addition, the wide material sources of these materials, cost are low.
Preferably, the thickness of intermediate core layer 12 is 0.06mm-0.25mm.
Preferably, as shown in figure 5, using the center of the through-thickness of reinforcement part as starting point, positioned at the upside of starting point
I-th layer of aramid fiber layer there is identical surface density with i-th layer of aramid fiber layer of downside positioned at starting point, wherein, i is
Natural number.
It should be noted that starting point can be virtual geometry midpoint or the intermediate core layer of through-thickness
12。
In one example, as shown in figure 5, being starting point with intermediate core layer 12.It is connected with the upper surface of intermediate core layer 12
The first layer for upside.More than the first layer of upside be followed successively by the second layer, third layer ... i-th layer ....With intermediate core layer 12
The first layer for downside of lower surface connection.The first layer next coming in order of downside be the second layer, third layer ... i-th layer ....
In this example embodiment, apart from starting point, such as intermediate core layer 12, the surface density phase of the aramid fiber layer 11 of the identical number of plies
Together.In this way, it can guarantee that the quality of reinforcement part is homogeneous.
In addition, in vibration, the effect of the upper and lower vibration in reinforcement part is consistent.
In another example, as shown in fig. 6, reinforcement part also includes multiple intermediate core layers 12.Intermediate core layer 12 is foaming
Material.Aramid fiber layer 11 is arranged at intervals with intermediate core layer 12.Reinforcement part includes the first top layer and the second table being oppositely arranged
Layer.The first top layer and the second top layer of reinforcement part are aramid fiber layer 11.
Specifically, intermediate layer of the intermediate core layer 12 as reinforcement part.First, second top layer of reinforcement part is aramid fiber
Layer 11, to ensure that reinforcement part has enough structural strengths.Multiple intermediate core layers 12 cause reinforcement part to have bigger damping.
Alternatively, intermediate core layer 12 is by any one in PMI expanded materials, PI expanded materials and polyesters expanded material
It is made.Preferably, the thickness of intermediate core layer 12 is 0.06mm-0.25mm.
In one example, reinforcement part is made by compression molding or vacuum-bag process.
Specifically, first, by least one layer of aramid fiber prepreg or at least one layer of aramid fiber prepreg and centre
Sandwich layer 12 arranges according to the order of setting, to form at least one layer of material；
Then, under the forming temperature of setting, using compression molding or vacuum-bag process by above-mentioned at least one layer of material
It is molded.In the curing process, connected between aramid fiber layer 11 and between aramid fiber layer 11 and intermediate core layer 12
Intensity is connect, to form reinforcement part.
According to another embodiment of the present utility model, there is provided a kind of oscillating plate.Oscillating plate shakes as sound-producing device
One of building block of dynamic component.The oscillating plate includes vibrating diaphragm and reinforcement part provided by the utility model.Reinforcement part is arranged on
The central part of vibrating diaphragm.
In one example, vibrating diaphragm includes central part, around the ring portion that central part is set and around the setting of ring portion
Fixed part.Reinforcement part is fixed on by central part by binding agent or double faced adhesive tape.
Reinforcement part can reduce the polarization of vibrating diaphragm, increase the inertia of vibrating diaphragm.
In addition, the density of the reinforcement part is small, rigidity is high, specific modulus is high, the high and low frequency of sound-producing device can be obviously improved
Energy.
Alternatively, vibrating diaphragm is made by engineering plastics or thermoplastic elastic material, or
Vibrating diaphragm includes at least three layers, wherein, two top layers of vibrating diaphragm are made by engineering plastics or thermoplastic elastic material
Form, at least one intermediate layer of vibrating diaphragm is made by glued membrane.Reinforcement part is bonded in the central part of vibrating diaphragm.
Specifically, the engineering plastic bed of material is made by engineering plastics.Thermoplastic elastomer is by thermoplastic elastic material
It is made.Adhesive film is made by glued membrane.
Vibrating diaphragm can be combined by multiple engineering plastic bed of materials or multiple thermoplastic elastomers.
Can also be that vibrating diaphragm is combined by multilayer material, wherein, including the engineering plastic bed of material and thermoplastic elastomer.
It is also possible that vibrating diaphragm is combined by multilayer material, wherein, including two top layers and between two top layers
At least one intermediate layer.Two top layers include the engineering plastic bed of material and/or thermoplastic elastomer.Intermediate layer or multiple intermediate layers
In it is at least one be adhesive film.
Engineering plastics optionally PEEK (polyether-ether-ketone), PAR (gather fragrant fat) etc..Thermoplastic elastomer (TPE) optionally TPU
(TPUE), TPEE (thermoplastic polyester elastomer), silicon rubber etc..Glued membrane optionally esters of acrylic acid glue
Film, organic silicon glued membrane etc..Glued membrane has viscosity.Glued membrane can be directly be bonded with engineering plastics and/or thermoplastic elastomer (TPE)
Together.Glued membrane can heighten the damping of vibrating diaphragm, reduce the noise of sound-producing device.Those skilled in the art can be according to reality
Border needs to select the material for making vibrating diaphragm.
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 above example 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)
1. a kind of reinforcement part for sound-producing device, it is characterised in that the reinforcement part includes at least one layer of aramid fiber layer, institute
Stating aramid fiber layer includes unidirectionally extended aramid fiber, and the aramid fiber of at least one layer of aramid fiber layer prolongs along identical
Stretch direction arrangement.
2. reinforcement part according to claim 1, it is characterised in that also including intermediate core layer, the intermediate core layer is foaming
Material, the aramid fiber layer are multilayer, and the aramid fiber layer is separately positioned on the upper and lower both sides of the intermediate core layer,
Aramid fiber layer positioned at the upside is arranged symmetrically with the aramid fiber layer positioned at the downside relative to the intermediate core layer.
3. reinforcement part according to claim 1, it is characterised in that using the center of the through-thickness of the reinforcement part as rise
Initial point, i-th layer of aramid fiber layer and i-th layer of institute of the downside positioned at the starting point positioned at the upside of the starting point
Stating aramid fiber layer has identical surface density, wherein, i is natural number.
4. reinforcement part according to claim 1, it is characterised in that the reinforcement part includes two the first sides being oppositely arranged
With two the second sides being oppositely arranged, two first sides are parallel to each other, and two second sides are parallel to each other, and described first
While length be more than described second while length, the aramid fiber extends perpendicularly to first side.
5. reinforcement part according to claim 1, it is characterised in that be also including multiple intermediate core layers, the intermediate core layer
Expanded material, the aramid fiber layer are arranged at intervals with the intermediate core layer, the first top layer and the second top layer of the reinforcement part
For the aramid fiber layer.
6. according to the reinforcement part described in claim 2 or 5, it is characterised in that the intermediate core layer is by PMI expanded materials, PI
Any one in expanded material and polyesters expanded material is made.
7. according to the reinforcement part described in claim any one of 1-5, it is characterised in that the aramid fiber layer is pre- by aramid fiber
Leaching material is made, and the resin of the aramid fiber prepreg is selected from epoxy resin, phenolic resin and bimaleimide resin
In any one.
8. according to the reinforcement part described in claim any one of 1-5, it is characterised in that the reinforcement part by compression molding or
Vacuum-bag process is made.
A kind of 9. oscillating plate, it is characterised in that the reinforcement part including vibrating diaphragm and as described in any one in claim 1-8,
The reinforcement part is arranged on the central part of the vibrating diaphragm.
10. oscillating plate according to claim 9, it is characterised in that the vibrating diaphragm is by engineering plastics or thermoplastic elastomer (TPE)
Material is made, or
The vibrating diaphragm includes at least three layers, wherein, two top layers of the vibrating diaphragm are by engineering plastics or thermoplastic elastic material
It is made, at least one intermediate layer of the vibrating diaphragm is made by glued membrane；
The reinforcement part is bonded in the central part of the vibrating diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974851.5U CN207124738U (en) | 2017-08-07 | 2017-08-07 | Reinforcement part and oscillating plate for sound-producing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720974851.5U CN207124738U (en) | 2017-08-07 | 2017-08-07 | Reinforcement part and oscillating plate for sound-producing device |
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| Publication Number | Publication Date |
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| CN207124738U true CN207124738U (en) | 2018-03-20 |
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ID=61613559
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| CN201720974851.5U Active CN207124738U (en) | 2017-08-07 | 2017-08-07 | Reinforcement part and oscillating plate for sound-producing device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108724765A (en) * | 2018-04-18 | 2018-11-02 | 歌尔股份有限公司 | Preparation method, oscillating plate and the sound-producing device of fibrous composite |
| CN109660919A (en) * | 2018-11-30 | 2019-04-19 | 歌尔股份有限公司 | A kind of sounding device |
| CN109862482A (en) * | 2018-12-29 | 2019-06-07 | 瑞声声学科技(深圳)有限公司 | A kind of top dome material, vibrating diaphragm and loudspeaker |
| CN110944271A (en) * | 2019-11-29 | 2020-03-31 | 歌尔股份有限公司 | Reinforcing part for sound generating device, vibration plate and sound generating device |
| CN111935626A (en) * | 2020-09-23 | 2020-11-13 | 歌尔股份有限公司 | Vibrating diaphragm of loudspeaker, preparation method of vibrating diaphragm and loudspeaker |
| CN112770231A (en) * | 2020-12-21 | 2021-05-07 | 歌尔股份有限公司 | Vibrating plate for sound production device and sound production device |
-
2017
- 2017-08-07 CN CN201720974851.5U patent/CN207124738U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108724765A (en) * | 2018-04-18 | 2018-11-02 | 歌尔股份有限公司 | Preparation method, oscillating plate and the sound-producing device of fibrous composite |
| CN109660919A (en) * | 2018-11-30 | 2019-04-19 | 歌尔股份有限公司 | A kind of sounding device |
| CN109660919B (en) * | 2018-11-30 | 2020-11-20 | 歌尔股份有限公司 | Sound production device |
| CN109862482A (en) * | 2018-12-29 | 2019-06-07 | 瑞声声学科技(深圳)有限公司 | A kind of top dome material, vibrating diaphragm and loudspeaker |
| CN109862482B (en) * | 2018-12-29 | 2021-10-01 | 瑞声声学科技(深圳)有限公司 | Ball top material, vibrating diaphragm and loudspeaker |
| CN110944271A (en) * | 2019-11-29 | 2020-03-31 | 歌尔股份有限公司 | Reinforcing part for sound generating device, vibration plate and sound generating device |
| CN110944271B (en) * | 2019-11-29 | 2021-08-31 | 歌尔股份有限公司 | Reinforcing part for sound generating device, vibration plate and sound generating device |
| CN111935626A (en) * | 2020-09-23 | 2020-11-13 | 歌尔股份有限公司 | Vibrating diaphragm of loudspeaker, preparation method of vibrating diaphragm and loudspeaker |
| CN111935626B (en) * | 2020-09-23 | 2022-03-15 | 歌尔股份有限公司 | Vibrating diaphragm of loudspeaker, preparation method of vibrating diaphragm and loudspeaker |
| CN112770231A (en) * | 2020-12-21 | 2021-05-07 | 歌尔股份有限公司 | Vibrating plate for sound production device and sound production device |
| WO2022135124A1 (en) * | 2020-12-21 | 2022-06-30 | 歌尔股份有限公司 | Vibration plate for sound production device, and sound production device |
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